0000004977afl:AflacJapanMemberafl:ClosedblockMember2022-12-31

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
[ X ]  
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2017March 31, 2023
or
[    ]  
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
Commission File Number: 001-07434
aflaclogoa01a01a01a33.jpg
Aflac Incorporated

(Exact name of registrant as specified in its charter)
Georgia58-1167100
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
1932 Wynnton Road Columbus, GeorgiaColumbus,Georgia31999
(Address of principal executive offices)(ZIP Code)
706. 323.3431
(Registrant's telephone number, including area code)
706.323.3431
(Registrant's telephone number, including area code)
(Former name, former address and former fiscal year, if changed since last report)
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, $.10 par value per shareAFLNew York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  þ  Yes  ¨  No
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).            þ  Yes  ¨  No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.  See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filerþ
þ
Accelerated filer¨
Non-accelerated filer   ¨ (Do not check if a smaller reporting company)
¨
Smaller reporting company  ¨
Emerging growth company  ¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  ¨  Yes  þ  No
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date. 604,226,995 shares of the issuer's common stock were outstanding as of April 21, 2023.

ClassOctober 25, 2017
Common Stock, $.10 Par Value393,149,620



Aflac Incorporated and Subsidiaries
Quarterly Report on Form 10-Q
For the Quarter Ended September 30, 2017March 31, 2023
Table of Contents
 
PART I.Page
Item 1.
Page
PART I.
Item 1.
    Three Months Ended September 30, 2017March 31, 2023 and 2016
  Nine Months Ended September 30, 2017 and 20162022
  Three Months Ended September 30, 2017March 31, 2023 and 2016
  Nine Months Ended September 30, 2017 and 20162022
  September 30, 2017,March 31, 2023, and December 31, 20162022
  NineThree Months Ended September 30, 2017March 31, 2023 and 20162022
  NineThree Months Ended September 30, 2017March 31, 2023 and 20162022
Item 2.
Item 3.
Item 4.
PART II.
Item 2.
Item 6.
Items other than those listed above are omitted because they are not required or are not applicable.




PART I. FINANCIAL INFORMATION


Item 1. Financial Statements.

Review by Independent Registered Public Accounting Firm

The September 30, 2017, and 2016, consolidated financial statements included in this filing have been reviewed by KPMG LLP, an independent registered public accounting firm, in accordance with established professional standards and procedures for such a review.

The report of KPMG LLP commenting upon its review is included on the following page.

Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders
Aflac Incorporated:

We have reviewed the consolidated balance sheet of Aflac Incorporated and subsidiaries (the Company) as of September 30, 2017, the related consolidated statements of earnings, and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2017 and 2016, and the related consolidated statements of shareholders' equity, and cash flows for the nine-month periods ended September 30, 2017 and 2016. These consolidated financial statements are the responsibility of the Company's management.

We conducted our reviews in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States), the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

Based on our reviews, we are not aware of any material modifications that should be made to the consolidated financial statements referred to above for them to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of Aflac Incorporated and subsidiaries as of December 31, 2016, and the related consolidated statements of earnings, comprehensive income (loss), shareholders' equity, and cash flows for the year then ended (not presented herein); and in our report dated February 24, 2017, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2016, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.


/s/ KPMG LLP

Atlanta, Georgia
November 2, 2017


Aflac Incorporated and Subsidiaries
Consolidated Statements of Earnings
  
Three Months Ended March 31,
(In millions, except for share and per-share amounts - Unaudited)20232022
Revenues:
Net earned premiums, principally supplemental health insurance$3,688 $4,079 
Net investment income943 903 
Net investment gains (losses)123 122 
Other income (loss)46 69 
Total revenues4,800 5,173 
Benefits and expenses:
Benefits and claims, excluding reserve remeasurement2,203 2,517 
Reserve remeasurement (gains) losses(53)(34)
Total benefits and claims, net2,150 2,483 
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs205 207 
Insurance commissions280 300 
Insurance and other expenses775 833 
Interest expense48 56 
Total acquisition and operating expenses1,308 1,396 
Total benefits and expenses3,458 3,879 
Earnings before income taxes1,342 1,294 
Income taxes154 247 
Net earnings$1,188 $1,047 
Net earnings per share:
Basic$1.94 $1.61 
Diluted1.94 1.60 
Weighted-average outstanding common shares used in
  computing earnings per share (In thousands):
Basic611,205 649,753 
Diluted613,950 652,827 
Cash dividends per share$.42 $.40 
  
Three Months Ended
September 30,
Nine Months Ended
September 30,
 
(In millions, except for share and per-share amounts - Unaudited)2017201620172016 
Revenues:            
Net premiums, principally supplemental health insurance $4,648
  $5,022
  $13,951
  $14,447
 
Net investment income 811
  842
  2,408
  2,465
 
Realized investment gains (losses):            
Other-than-temporary impairment losses realized (8)  (23)  (27)  (71) 
Sales and redemptions 61
  (14)  60
  100
 
Derivative and other gains (losses) (23)  (127)  (199)  (387) 
Total realized investment gains (losses) 30
  (164)  (166)  (358) 
Other income (loss) 17
  16
  50
  50
 
Total revenues 5,506
  5,716
  16,243
  16,604
 
Benefits and expenses:            
Benefits and claims, net 3,083
  3,378
  9,174
  9,657
 
Acquisition and operating expenses:            
Amortization of deferred policy acquisition costs 271
  282
  848
  858
 
Insurance commissions 332
  353
  996
  1,031
 
Insurance and other expenses 686
  675
  2,025
  1,948
 
Interest expense 59
  65
  181
  196
 
Total acquisition and operating expenses 1,348
  1,375
  4,050
  4,033
 
Total benefits and expenses 4,431
  4,753
  13,224
  13,690
 
Earnings before income taxes 1,075
  963
  3,019
  2,914
 
Income taxes 359
  334
  998
  1,006
 
Net earnings $716
  $629
  $2,021
  $1,908
 
Net earnings per share:            
Basic $1.81
  $1.54
  $5.09
  $4.62
 
Diluted 1.80
  1.53
  5.05
  4.59
 
Weighted-average outstanding common shares used in
computing earnings per share (In thousands):
            
Basic 394,479
  408,519
  397,323
  413,023
 
Diluted 397,381
  411,140
  400,241
  415,446
 
Cash dividends per share $.43
  $.41
  $1.29
  $1.23
 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
See the accompanying Notes to the Consolidated Financial Statements.


1



Aflac Incorporated and Subsidiaries
Consolidated Statements of Comprehensive Income (Loss)
  
Three Months Ended March 31,
(In millions - Unaudited)20232022
Net earnings$1,188 $1,047 
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during
   period
(43)(452)
Unrealized gains (losses) on fixed maturity securities:
Unrealized holding gains (losses) on fixed maturity securities
   during period
2,578 (4,752)
Reclassification adjustment for (gains) losses on
   fixed maturity securities included in net earnings
(57)(77)
Unrealized gains (losses) on derivatives during period1 
Effect of changes in discount rate assumptions during period(3,537)5,347 
Pension liability adjustment during period9 
Total other comprehensive income (loss) before income taxes(1,049)70 
Income tax expense (benefit) related to items of other comprehensive
   income (loss)
(200)110 
Other comprehensive income (loss), net of income taxes(849)(40)
Total comprehensive income (loss)$339 $1,007 
  
Three Months Ended
September 30,
Nine Months Ended
September 30,
(In millions - Unaudited)2017201620172016
Net earnings $716
  $629
  $2,021
  $1,908
 
Other comprehensive income (loss) before income taxes:            
Unrealized foreign currency translation gains (losses) during
period
 (58)  195
  325
  1,783
 
Unrealized gains (losses) on investment securities:            
Unrealized holding gains (losses) on investment securities during
period
 457
  (527)  1,006
  4,855
 
Reclassification adjustment for realized (gains) losses on
investment securities included in net earnings
 (50)  33
  (33)  (33) 
Unrealized gains (losses) on derivatives during period (1)  0
  0
  11
 
Pension liability adjustment during period 1
  0
  (1)  (6) 
Total other comprehensive income (loss) before income taxes 349
  (299)  1,297
  6,610
 
Income tax expense (benefit) related to items of other comprehensive
income (loss)
 219
  (231)  396
  1,871
 
Other comprehensive income (loss), net of income taxes 130
  (68)  901
  4,739
 
Total comprehensive income (loss) $846
  $561
  $2,922
  $6,647
 
SeePrior-year amounts have been adjusted for the accompanying Notesadoption of accounting guidance on January 1, 2023 related to the Consolidated Financial Statements.

Aflac Incorporated and Subsidiaries
Consolidated Balance Sheets
(In millions)September 30, 2017
(Unaudited)
 December 31,
2016
Assets:       
Investments and cash:       
Securities available for sale, at fair value:       
Fixed maturities (amortized cost $67,970 in 2017 and $62,195 in 2016) $75,191
   $68,778
 
Fixed maturities - consolidated variable interest entities (amortized
cost $4,274 in 2017 and $4,168 in 2016)
 5,224
   4,982
 
Perpetual securities (amortized cost $1,310 in 2017 and $1,269 in 2016) 1,652
   1,425
 
Perpetual securities - consolidated variable interest entities
(amortized cost $239 in 2017 and $237 in 2016)
 211
   208
 
Equity securities (cost $216 in 2017 and $231 in 2016) 238
   265
 
Equity securities - consolidated variable interest entities
(cost $595 in 2017 and $972 in 2016)
 690
   1,044
 
Securities held to maturity, at amortized cost:       
Fixed maturities (fair value $38,599 in 2017 and $40,021 in 2016) 31,998
   33,350
 
Other investments (1)
 2,358
   1,450
 
Cash and cash equivalents 4,927
   4,859
 
Total investments and cash 122,489
   116,361
 
Receivables 937
   669
 
Accrued investment income 730
   754
 
Deferred policy acquisition costs 9,413
   8,993
 
Property and equipment, at cost less accumulated depreciation 439
   433
 
Other (2)
 2,075
   2,609
 
Total assets $136,083
   $129,819
 
(1) Includes $1,500 in 2017 and $819 in 2016 of loan receivables and limited partnerships from consolidated variable interest entities
(2) Includes $148 in 2017 and $127 in 2016 of derivatives from consolidated variable interest entitiesaccounting for long-duration insurance contracts.
See the accompanying Notes to the Consolidated Financial Statements.

2




(continued)

Aflac Incorporated and Subsidiaries
Consolidated Balance Sheets (continued)
(In millions, except for share and per-share amounts - Unaudited)March 31,
2023
December 31,
2022
Assets:
Investments and cash:
Fixed maturity securities available for sale, at fair value, (no allowance for credit losses in
  2023 and 2022, amortized cost $72,084 in 2023 and $72,246 in 2022)
$74,174 $71,936 
Fixed maturity securities available for sale - consolidated variable interest entities, at fair value
  (amortized cost $3,222 in 2023 and $3,223 in 2022)
3,925 3,805 
Fixed maturity securities held to maturity, at amortized cost, net of allowance
  for credit losses of $6 in 2023 and $7 in 2022 (fair value $21,616 in 2023 and $21,210 in 2022)
18,936 19,056 
Equity securities, at fair value1,087 1,091 
Commercial mortgage and other loans, net of allowance for credit losses of $223 in 2023 and $192
  in 2022 (includes $10,684 in 2023 and $10,832 in 2022 of consolidated variable interest entities)
13,328 13,496 
Other investments
  (includes $2,049 in 2023 and $1,909 in 2022 of consolidated variable interest entities)
5,241 4,070 
Cash and cash equivalents3,809 3,943 
Total investments and cash120,500 117,397 
Receivables789 647 
Accrued investment income701 745 
Deferred policy acquisition costs9,267 9,239 
Property and equipment, at cost less accumulated depreciation528 530 
Other3,181 3,180 
Total assets$134,966 $131,738 
Liabilities and shareholders’ equity:
Liabilities:
Policy liabilities:
Future policy benefits$91,293 $88,241 
Unpaid policy claims229 201 
Unearned premiums1,743 1,825 
Other policyholders’ funds6,668 6,643 
Total policy liabilities99,933 96,910 
Income taxes647 698 
Payables for return of cash collateral on loaned securities3,460 1,809 
Notes payable and lease obligations7,420 7,442 
Other3,722 4,739 
Total liabilities115,182 111,598 
Commitments and contingent liabilities (Note 13)
Shareholders’ equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000
   shares in 2023 and 2022; issued 1,355,012 shares in 2023 and 1,354,079 shares in 2022
135 135 
Additional paid-in capital2,665 2,641 
Retained earnings45,555 44,367 
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)(3,618)(3,564)
Unrealized gains (losses) on fixed maturity securities1,289 (702)
Unrealized gains (losses) on derivatives(26)(27)
Effect of changes in discount rate assumptions(4,894)(2,100)
Pension liability adjustment(29)(36)
Treasury stock, at average cost(21,293)(20,574)
Total shareholders’ equity19,784 20,140 
Total liabilities and shareholders’ equity$134,966 $131,738 
(In millions, except for share and per-share amounts)September 30, 2017
(Unaudited)
 December 31,
2016
Liabilities and shareholders’ equity:       
Liabilities:       
Policy liabilities:       
Future policy benefits $81,116
   $76,106
 
Unpaid policy claims 4,368
   4,045
 
Unearned premiums 6,262
   6,916
 
Other policyholders’ funds 6,967
   6,659
 
Total policy liabilities 98,713
   93,726
 
Income taxes 6,195
   5,387
 
Payables for return of cash collateral on loaned securities 522
   526
 
Notes payable 5,248
   5,360
 
Other (3)
 3,428
   4,338
 
Total liabilities 114,106
   109,337
 
Commitments and contingent liabilities (Note 12)       
Shareholders’ equity:       
Common stock of $.10 par value. In thousands: authorized 1,900,000
shares in 2017 and 2016; issued 672,669 shares in 2017 and 671,249
shares in 2016
 67
   67
 
Additional paid-in capital 2,077
   1,976
 
Retained earnings 27,489
   25,981
 
Accumulated other comprehensive income (loss):       
Unrealized foreign currency translation gains (losses) (1,715)   (1,983) 
Unrealized gains (losses) on investment securities 5,437
   4,805
 
Unrealized gains (losses) on derivatives (23)   (24) 
Pension liability adjustment (168)   (168) 
Treasury stock, at average cost (11,187)   (10,172) 
Total shareholders’ equity 21,977
   20,482
 
Total liabilities and shareholders’ equity $136,083
   $129,819
 
(3) Includes $132 in 2017 and $146 in 2016Prior-year amounts have been adjusted for the adoption of derivatives from consolidated variable interest entitiesaccounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
See the accompanying Notes to the Consolidated Financial Statements.






3


Aflac Incorporated and Subsidiaries
Consolidated Statements of Shareholders’ Equity
(In millions, except for per share amounts - Unaudited)Common StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Treasury StockTotal Shareholders'
Equity
Balance at December 31, 2022$135 $2,641 $44,367 $(6,429)$(20,574)$20,140 
Net earnings1,188 1,188 
Unrealized foreign currency translation
   gains (losses) during period, net of
   income taxes
(54)(54)
Unrealized gains (losses) on fixed maturity
   securities during period, net of income
   taxes and reclassification adjustments
1,991 1,991 
Unrealized gains (losses) on derivatives
   during period, net of income taxes
Effect of changes in discount rate assumptions
   during period, net of income taxes
(2,794)(2,794)
Pension liability adjustment during period,
   net of income taxes
Dividends to shareholders (1)
  ($.00 per share)
Exercise of stock options
Share-based compensation14 14 
Purchases of treasury stock(732)(732)
Treasury stock reissued13 20 
Balance at March 31, 2023$135 $2,665 $45,555 $(7,278)$(21,293)$19,784 
  
Nine Months Ended
September 30,
(In millions - Unaudited) 2017   2016 
Common stock:       
Balance, beginning of period $67
   $67
 
Balance, end of period 67
   67
 
Additional paid-in capital:       
Balance, beginning of period 1,976
   1,828
 
Exercise of stock options 33
   38
 
Share-based compensation 38
   41
 
Gain (loss) on treasury stock reissued 30
   29
 
Balance, end of period 2,077
   1,936
 
Retained earnings:       
Balance, beginning of period 25,981
   24,007
 
Net earnings 2,021
   1,908
 
Dividends to shareholders (513)   (511) 
Balance, end of period 27,489
   25,404
 
Accumulated other comprehensive income (loss):       
Balance, beginning of period 2,630
   625
 
Unrealized foreign currency translation gains (losses) during
period, net of income taxes
 268
   1,602
 
Unrealized gains (losses) on investment securities during period,
net of income taxes and reclassification adjustments
 632
   3,134
 
Unrealized gains (losses) on derivatives during period, net of
income taxes
 1
   7
 
Pension liability adjustment during period, net of income taxes 0
   (4) 
Balance, end of period 3,531
   5,364
 
Treasury stock:       
Balance, beginning of period (10,172)   (8,819) 
Purchases of treasury stock (1,053)   (1,222) 
Cost of shares issued 38
   55
 
Balance, end of period (11,187)   (9,986) 
Total shareholders’ equity $21,977
   $22,785
 

(In millions, except for per share amounts - Unaudited)Common StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Treasury StockTotal Shareholders'
Equity
Balance at December 31, 2021$135 $2,529 $40,963 $(8,411)$(18,185)$17,031 
Net earnings1,047 1,047 
Unrealized foreign currency translation
   gains (losses) during period, net of
   income taxes
(453)(453)
Unrealized gains (losses) on fixed maturity
   securities during period, net of income
   taxes and reclassification adjustments
(3,815)(3,815)
Unrealized gains (losses) on derivatives
   during period, net of income taxes
Effect of changes in discount rate assumptions
   during period, net of income taxes
4,224 4,224 
Pension liability adjustment during period,
   net of income taxes
Dividends to shareholders (1)
  ($.00 per share)
Exercise of stock options
Share-based compensation13 13 
Purchases of treasury stock(523)(523)
Treasury stock reissued12 14 26 
Balance at March 31, 2022$135 $2,560 $42,010 $(8,451)$(18,694)$17,560 
(1) Dividends to shareholders are recorded in the period in which they are declared.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
See the accompanying Notes to the Consolidated Financial Statements.

4


Aflac Incorporated and Subsidiaries
Consolidated Statements of Cash Flows
  Three Months Ended March 31,
(In millions - Unaudited)20232022
Cash flows from operating activities:
Net earnings$1,188 $1,047 
Adjustments to reconcile net earnings to net cash provided (used) by operating activities:
Change in receivables and advance premiums(34)(29)
Capitalization of deferred policy acquisition costs(270)(255)
Amortization of deferred policy acquisition costs205 207 
Increase in policy liabilities(361)143 
Change in income tax liabilities154 325 
Net investment (gains) losses(123)(122)
Other, net(51)(56)
Net cash provided (used) by operating activities708 1,260 
Cash flows from investing activities:
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities949 545 
Equity securities126 102 
Commercial mortgage and other loans418 638 
Costs of investments acquired:
Available-for-sale fixed maturity securities(1,090)(707)
Equity securities(134)(114)
Commercial mortgage and other loans(315)(1,161)
Other investments, net(1,074)(138)
Settlement of derivatives, net(480)(558)
Cash received (pledged or returned) as collateral, net1,756 142 
Other, net(51)41 
Net cash provided (used) by investing activities105 (1,210)
Cash flows from financing activities:
Purchases of treasury stock(700)(500)
Dividends paid to shareholders(248)(250)
Change in investment-type contracts, net(28)(21)
Treasury stock reissued2 
Other, net41 

25 
Net cash provided (used) by financing activities(933)(737)
Effect of exchange rate changes on cash and cash equivalents(14)(89)
Net change in cash and cash equivalents(134)(776)
Cash and cash equivalents, beginning of period3,943 5,051 
Cash and cash equivalents, end of period$3,809 $4,275 
Supplemental disclosures of cash flow information:
Income taxes paid$0 $(77)
Interest paid37 37 
Noncash interest11 19 
Noncash financing activities:
Lease obligations18 73 
Treasury stock issued for:
   Associate stock bonus4 
   Shareholder dividend reinvestment9 
   Share-based compensation grants5 
  Nine Months Ended September 30,
(In millions - Unaudited)2017 2016
Cash flows from operating activities:       
Net earnings $2,021
   $1,908
 
Adjustments to reconcile net earnings to net cash provided by operating activities:       
Change in receivables and advance premiums (32)   41
 
Increase in deferred policy acquisition costs (229)   (186) 
Increase in policy liabilities 2,137
   2,329
 
Change in income tax liabilities 323
   (365) 
Realized investment (gains) losses 166
   358
 
Other, net 210
   35
 
Net cash provided (used) by operating activities 4,596
   4,120
 
Cash flows from investing activities:       
Proceeds from investments sold or matured:       
Securities available for sale:       
Fixed maturities sold 2,633
   978
 
Fixed maturities matured or called 740
   774
 
Perpetual securities matured or called 9
   234
 
Equity securities sold 755
   173
 
Securities held to maturity:       
Fixed maturities matured or called 1,714
   946
 
Costs of investments acquired:       
Available-for-sale fixed maturities acquired (6,827)   (4,871) 
Available-for-sale equity securities acquired (391)   (868) 
Other investments, net (949)   (801) 
Settlement of derivatives, net (240)   1,203
 
Cash received (pledged or returned) as collateral, net (273)   (350) 
Other, net (58)   (56) 
Net cash provided (used) by investing activities (2,887)   (2,638) 
Cash flows from financing activities:       
Purchases of treasury stock (1,053)   (1,222) 
Proceeds from borrowings 524
   988
 
Principal payments under debt obligations (660)   (232) 
Dividends paid to shareholders (491)   (492) 
Change in investment-type contracts, net 39
   117
 
Treasury stock reissued 23
   37
 
Other, net 5

  (31) 
Net cash provided (used) by financing activities (1,613)   (835) 
Effect of exchange rate changes on cash and cash equivalents (28)   273
 
Net change in cash and cash equivalents 68
   920
 
Cash and cash equivalents, beginning of period 4,859
   4,350
 
Cash and cash equivalents, end of period $4,927
   $5,270
 
Supplemental disclosures of cash flow information:       
Income taxes paid $693
   $1,594
 
Interest paid 144
   155
 
Noncash interest 38
   41
 
Impairment losses included in realized investment losses 27
   71
 
Noncash financing activities:       
Capital lease obligations 7
   2
 
Treasury stock issued for:       
   Associate stock bonus 22
   24
 
   Shareholder dividend reinvestment 22
   19
 
   Share-based compensation grants 1
   4
 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
See the accompanying Notes to the Consolidated Financial Statements.

5


Aflac Incorporated and Subsidiaries
Notes to the Consolidated Financial Statements
(Interim period data – Unaudited)(Unaudited)


1.SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

1.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Description of Business


Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) primarily sell supplemental health and life insurance in the United States (U.S.) and Japan. The Company's insurance business is marketed and administered through American Family Life Assurance Company of Columbus (Aflac) in the U.S. and through Aflac Life Insurance Japan Ltd. (ALIJ) in Japan. The Company’s operations consist of two reportable business segments: Aflac U.S., which operates in the United States (Aflac U.S.)includes Aflac, and as a branch inAflac Japan, (Aflac Japan).which includes ALIJ. American Family Life Assurance Company of New York (Aflac New York) is a wholly owned subsidiary of Aflac. Most of Aflac's policies are individually underwritten and marketed through independent agents. Additionally,With the exception of dental and vision products administered by Aflac Benefits Solutions, Inc. (ABS) and certain group life insurance products, Aflac U.S. markets and administers group products through Continental American Insurance Company (CAIC), branded as Aflac Group Insurance. Additionally, Aflac U.S. markets its consumer markets products through Tier One Insurance Company (TOIC). The Company's insurance operations in the United StatesU.S. and its branch in Japan service the two markets for the Company's insurance business. The Parent Company, other operating business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other. Aflac Japan's revenues, including realizednet gains and losses on its investment portfolio, accounted for 69%62% and 74%70% of the Company's total revenues in the nine-monththree-month periods ended September 30, 2017March 31, 2023 and 2016,2022, respectively. The percentage of the Company's total assets attributable to Aflac Japan was 83%81% at both September 30, 2017, andMarch 31, 2023, compared with 80% at December 31, 2016.2022.


In 2022, the Company established Aflac Re Bermuda Ltd. (Aflac Re), a Bermuda domiciled insurer that reinsures certain policies issued by ALIJ. Aflac Re is subject to regulation in Bermuda, where the Bermuda Monetary Authority (BMA) has broad administrative powers relating to granting and revoking licenses to transact reinsurance business, approval of specific reinsurance transactions, capital requirements and solvency standards, limitations on dividends to shareholders, the nature of and limitations on investments, and the filing of financial statements in accordance with prescribed or permitted accounting practices. Financial results from Aflac Re are included in Corporate and other.

Basis of Presentation


The Company prepares its financial statements in accordance with U.S. generally accepted accounting principles (GAAP)(U.S. GAAP). These principles are established primarily by the Financial Accounting Standards Board (FASB). In these Notes to the Consolidated Financial Statements, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards CodificationTM (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The most significant items on the Company's balance sheet that involve a greater degree of accounting estimates and actuarial determinations subject to changes in the future are the valuation of investments and derivatives, deferred policy acquisition costs (DAC), liabilities for future policy benefits, and unpaid policy claims, and income taxes. These accounting estimates and actuarial determinations are sensitive to market conditions, investment yields, interest rates, mortality, morbidity, commission and other acquisition expenses, and terminations by policyholders. As additional information becomes available, or actual amounts are determinable, the recorded estimates will beare revised and reflected in operating results. Although some variability is inherent in these estimates, the Company believes the amounts provided are adequate.reasonable and reflective of the best estimates of management.


The unaudited consolidated financial statements include the accounts of the Parent Company, its subsidiaries and those entities required to be consolidated under applicable accounting standards. All material intercompany accounts and transactions have been eliminated.


In the opinion of management, the accompanying unaudited consolidated financial statements of the Company contain all adjustments, consisting of normal recurring accruals, which are necessary to fairly present the consolidated balance sheets as of September 30, 2017,March 31, 2023 and December 31, 2016,2022, and the consolidated statements of earnings and comprehensive income (loss) for the three- and nine-month periods ended September 30, 2017 and 2016, and the consolidated statements of, shareholders' equity and cash flows for the nine-monththree-month periods ended September 30, 2017March 31, 2023 and 2016.2022. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, these financial statements should be read in conjunction with the financial statements and notes thereto included in the Company's annual report on Form 10-K for the year ended December 31, 2016 (20162022 (2022 Annual Report).


Reclassifications
6


Significant Accounting Policies

The Company revised the following accounting policies as a result of the adoption of amended accounting guidance effective January 1, 2023 and certain reclassifications. Refer to Recently Adopted Accounting Pronouncements below for details of the adoption of ASU 2018-12 Financial Services - Insurance: Targeted Improvements to the Accounting for Long-Duration Contracts. In conjunction with the adoption of ASU 2018-12, the Company changed its practice of recording the change in the deferred profit liability on products with limited payment features from the benefits and claims, net line item to the net earned premiums line item in the consolidated statement of earnings. This reclassification had no impact on net earnings. The change in presentation has been made for all comparative periods presented. All other categories of significant accounting policies remain unchanged from the 2022 Annual Report.

Insurance Revenue and Expense Recognition: Substantially all of the supplemental health and life insurance policies the Company issues are classified as long-duration contracts. The contract provisions generally cannot be changed or canceled during the contract period; however, the Company may adjust premiums for supplemental health policies issued in the U.S. within prescribed guidelines and with the approval of state insurance regulatory authorities.

Insurance premiums for most of the Company's health and life policies, including cancer, accident, hospital, critical illness, supplemental dental and vision, term life, whole life, long-term care and disability, are recognized as earned premiums over the premium-paying periods of the contracts when due from policyholders. When earned premiums are reported, the related amounts of benefits and expenses are charged against such revenues. This association is accomplished by means of annual increases or decreases to the liability for future policy benefits (LFPB) and the deferral and subsequent amortization of policy acquisition costs.

Premiums from the Company's products with limited-pay features, including cancer, medical and nursing care, term life, whole life, WAYS, and child endowment, are collected over a significantly shorter period than the contract term (i.e., the period during which benefits are provided). Premiums for these products are recognized as earned premiums over the premium-paying periods when due from policyholders. Any gross premium in excess of the net premium is deferred and recorded as a deferred profit liability, which is subsequently amortized in net earned premiums such that profits are recognized in a constant relationship with insurance in force. Benefits are recorded as an expense when they are incurred. An LFPB is recorded when premiums are recognized using the net premium method.

Policyholders also have an option to pay discounted advanced premiums for certain of the Company's products. Advanced premiums are deferred and recognized when due from policyholders over the otherwise required contractual premium payment period.

Benefit expense is bifurcated between benefits and claims and reserve remeasurement (gains) losses. The net premium ratio (NPR) is used to measure benefit expense and is calculated as the ratio of the present value of actual and future expected benefits and expenses to the present value of actual and future expected gross premiums. A revised NPR is calculated as of the beginning of each reporting period using updated future cash flow expectations.

Reserve remeasurement (gains) losses represent the difference between two reserve measures both calculated as of the beginning of the current reporting period using the same locked-in discount rates. One reserve measure uses the NPR as of the end of the prior reporting period, and the second uses the revised NPR. Benefits and claims represent the difference in the liability balance calculated as of the beginning of the current reporting period and the end of the current reporting period both using the revised NPR and the locked-in discount rates. The locked-in interest accretion rate utilized for accretion of interest expense on insurance reserves is the original discount rate used at contract issue date.

Advertising expense is reported as incurred in insurance and other expenses in the consolidated statement of earnings.

Deferred Policy Acquisition Costs: Certain direct and incremental costs of acquiring insurance contracts are deferred and amortized on a grouped-contract basis over the expected term of the related contracts, using a constant-level basis. For life and health products issued in Japan, the constant-level basis used is units in force, which is a proxy for face amount, and insurance in force, respectively. For life and health products issued in the U.S., the constant-level basis used is face amount and number of policies in force, respectively. Amortization is computed using the same contract groupings (also referred to as cohorts) and mortality and termination assumptions that are used in computing the LFPB, and these assumptions are reviewed and updated at least annually. The effects of changes in assumptions are recognized prospectively over the remaining contract term as a revision of the future amortization pattern, while current period amortization is calculated based on the actual experience during the quarter. Deferred costs include the excess of current-year commissions over ultimate renewal-year commissions and certain incremental direct policy issue, underwriting and sales expenses directly related to successful policy acquisition.
7



For some products, policyholders can elect to modify product benefits, features, rights or coverages by exchanging a contract for a new contract or by amendment, endorsement, or rider to a contract, or by the election of a feature or coverage within a contract. These transactions are known as internal replacements. The Company performs a two-stage analysis of the internal replacements to determine if the modification is substantive to the base policy. The stages of evaluation are as follows: 1) determine if the modification is integrated with the base policy, and 2) if it is integrated, determine if the resulting contract is substantially changed.

For internal replacement transactions where the resulting contract is substantially unchanged, unamortized deferred acquisition costs from the original policy continue to be amortized over the expected life of the cohort, and the costs of replacing the policy are accounted for as policy maintenance costs and expensed as incurred.

For an internal replacement transaction that results in a policy that is substantially changed, the policy is treated as lapsed for amortization purposes, and the costs of acquiring the new policy are capitalized and amortized in accordance with the Company's accounting policies for deferred acquisition costs.

Riders can be considered internal replacements that are either integrated or non-integrated resulting in either substantially changed or substantially unchanged treatment. Riders are evaluated based on the specific facts and circumstances of the rider and are considered an expansion of the existing benefits with additional premium required. Non-integrated riders to existing contracts do not change the Company's profit expectations for the related products and are treated as a new policy establishment for incremental coverage.

Policy Liabilities: For long-duration insurance contracts, the Company calculates an integrated reserve that represents all payments under the contract including future expected claims and unpaid policy claims and related expenses. The liability for future policy benefits is measured using the net level premium method.

Long-duration insurance contracts issued by the Company are grouped into annual calendar-year cohorts based on the contract issue date, reportable segment, legal entity and product type. Limited-pay contracts are grouped into separate cohorts from other traditional products in the same manner and are further separated based on their premium payment structures.

The LFPB is determined as the present value of future policy benefits to be paid to or on the behalf of policyholders and certain related expenses less the present value of future net premiums receivable under the Company’s insurance contracts, where future net premiums receivable are future gross premiums receivable under the contract multiplied by the NPR.

Future policy benefits are calculated using assumptions and estimates including mortality, morbidity, termination (also referred to as lapses), expense, and discount rates. The assumptions and estimates that the Company uses depend on its judgment regarding the likelihood of future events and are inherently uncertain.

Cash flow assumptions (mortality, morbidity, and termination) are established at policy inception and are evaluated each quarter to determine if an update is needed. To facilitate a more detailed review of cash flow assumptions, experience studies are performed annually during the third quarter. Changes in cash flow assumptions are the result of applying the updated best estimate assumptions as of the beginning of the reporting period and are recognized in reserve remeasurement (gains) losses in the consolidated statement of earnings. Expense assumptions are established at policy inception and determined for each issue-year cohort as a percentage of paid claims. These expense assumptions are locked-in and remain unchanged over the term of the insurance policy. Actual experience is reflected in the calculation of future policy benefits each quarter, and changes in the liability due to actual experience are recognized in reserve remeasurement (gains) losses in the consolidated statement of earnings.

Discount rates used to calculate net premiums are locked in at policy inception and represent the basis to recognize interest expense in the consolidated statement of earnings. Discount rates used to measure the carrying value of the LFPB in the consolidated balance sheet are updated each reporting period, and the difference between the liability balances calculated using the locked-in discount rates and the updated discount rates is recognized in other comprehensive income (loss) (OCI).

The Company has designed its discount rate methodology for the U.S. and Japan insurance business. The methodology incorporates constructing a discount rate curve separately for discounting cash flows used to calculate the U.S. and Japan LFPBs, reflective of the characteristics of the insurance liabilities, such as currency and tenor. Discount rates comprising each curve are determined by reference to upper-medium grade (low credit risk) fixed-income instrument yields that
8


reflect the duration characteristics of the corresponding insurance liabilities. The Company uses for these yields single-A rated fixed income instruments with credit ratings based on international rating standards. Where only local ratings are available, the Company selects the fixed-income instruments with local ratings that are equivalent to a single-A rating based on international rating standards. The methodology is designed to prioritize observable inputs based on market data available in the local debt markets where the respective policies were issued in the currency in which the policies are denominated. For the discount rates applicable to tenors for which the single-A debt market is not liquid or there is little or no observable market data, the Company uses various estimation techniques consistent with the fair value guidance in ASC 820, which include, but are not limited to: (i) for tenors where there is less observable market data and/or the observable market data is available for similar instruments, estimating tenor-specific single-A credit spreads and applying them to risk-free government rates; (ii) for tenors where there is very limited or no observable single-A or similar market data, interpolation and extrapolation techniques.

The locked-in discount rate used for the computation of interest accretion on LFPBs is determined separately for each issue-year cohort as a single discount rate, calculated as the weighted-average of monthly upper-medium grade (low credit risk) fixed-income instrument forward curves in the calendar year, determined using the methodology described above and weighted using issued annualized premiums for each issue month. The single discount rate for each issue-year cohort is determined by solving for a rate that produces an equivalent net premium ratio to the forward curve and will remain unchanged after the calendar year of issue.

Unearned premiums consist primarily of discounted advance premiums on deposit from policyholders in conjunction with their purchase of certain Aflac Japan limited-pay insurance products. These advanced premiums are deferred upon collection and recognized as earned premiums over the contractual premium payment period.

The other policyholders’ funds liability consists primarily of the fixed annuity line of business in Aflac Japan which has fixed benefits and premiums.

For internal replacements that are determined to be substantially changed, policy liabilities related to the original policy that was replaced are immediately released, and policy liabilities are established for the new insurance contract. The policy reserves are evaluated based on the new policy features, and changes are recognized at the date of contract change/modification. For internal replacements that are substantially unchanged, no changes to the reserves are recognized. For modifications that are not integrated with the base policy, new coverage is recognized as a separately issued contract within the current cohort.

Reclassifications: Certain reclassifications have been made to prior-year amounts to conform to current-year reporting classifications. These reclassifications had no impact on net earnings or total shareholders' equity.

Prior year foreign currency transaction gains and losses have been reclassified from Other income (loss) to Realized investment gains (losses) - Derivative and other gains (losses) to conform to current-year reporting classifications. These reclassifications had no impact on net earnings or total shareholders' equity. This change in classification was made to reflect that the major source of the Company's foreign currency transaction gains and losses is directly or indirectly a result of its investment activity.



New Accounting Pronouncements


Recently Adopted Accounting Pronouncements


ConsolidationASU 2018-12 Financial Services - Interests Held through Related Parties That Are under Common Control: Insurance: Targeted Improvements to the Accounting for Long-Duration Contracts, as clarified and amended by:
ASU 2019-09 Financial Services - Insurance: Effective Date
ASU 2020-11 Financial Services - Insurance: Effective Date and Early Application

In October 2016,August 2018, the FASB issued amendments which clarify the consolidation guidance onthat significantly changed how a reporting entity that is the single decision maker of a variable interest entity (VIE) should treat indirect interests in the entity held through related parties that are under common control with the reporting entity when determining whether it is the primary beneficiary of that VIE.insurers account for long-duration contracts. The Company adopted thisthe standard on January 1, 2023 using a modified retrospective transition method which resulted in applying the amended guidance as of the beginning of the earliest period presented on the January 1, 2021 transition date (Transition Date). The modified retrospective transition method generally results in applying the guidance to contracts on the basis of existing carrying values as of the Transition Date. On the Transition Date, the Company calculated the ratio of the present value of future expected benefits and expenses less existing carrying values to the present value of future expected gross premiums (Transition Date NPR) using updated assumptions and the discount rate immediately before the Transition Date. The Company capped the Transition Date NPR at 100% for any cohorts with a Transition Date NPR greater than 100%. The Company calculated the LFPB using the Transition Date NPR (capped at 100% if required) and two different discount rates: (i) the discount rate used immediately before the Transition Date, and (ii) the discount rate determined by reference to the Transition Date market level yields for upper-medium grade (low credit risk) fixed income instruments (as of December 31, 2020). For cohorts with their Transition Date NPR capped at 100%, the Company recorded as an adjustment (decrease) to opening retained earnings any difference between the LFPB calculated using the discount rate immediately before the Transition Date and the existing carrying value as of the Transition Date. For all cohorts on the Transition Date, the Company recorded in accumulated other comprehensive
9


income (AOCI) net of tax, the difference in the LFPB calculated using the two different discount rates (i.e., the discount rate used immediately before the Transition Date and the updated discount rate as of the Transition Date).

Upon adoption, the Company adjusted opening equity for the Transition Date impacts to AOCI and retained earnings and adjusted prior periods presented (years 2021 and 2022) following the updated standard. Based upon the modified retrospective transition method, the Transition Date impact from adoption resulted in a decrease in AOCI of approximately $18.6 billion and a decrease in retained earnings (RE) of approximately $0.3 billion.

See Note 6 and Note 7 of the Notes to the Consolidated Financial Statements for expanded disclosures for DAC and future policy benefits, respectively, required as a result of the amended guidance.

Transition Impact to Shareholder's Equity

The following table presents the cumulative transition impact as of January 1, 2017. 2021 to the Company’s Shareholder’s Equity as a result of the adoption of ASU 2018-12, using the modified retrospective transition method.
(In millions - Unaudited)Common StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Treasury StockTotal Shareholders'
Equity
Balance at December 31, 2020$135 $2,410 $37,984 $8,934 $(15,904)$33,559 
Cumulative effect of change in accounting
  principle, ASU 2018-12, net of income taxes
(324)(18,570)(18,894)
Balance at January 1, 2021$135 $2,410 $37,660 $(9,636)$(15,904)$14,665 

The following table presents the transition impacts as of January 1, 2021 to the Company's AOCI and RE as a result of the adoption of ASU 2018-12 by reporting segment and disaggregated by product type, using the modified retrospective transition method.
(In millions - Unaudited)Impact to Retained
Earnings
Impact to AOCI
Transition impacts:
Aflac Japan
Cancer$$14,529 
Medical and other health2,382 
Life insurance3,314 
Other (1)
398 433 
Aflac U.S.
Accident92 
Disability149 
Critical care2,258 
Hospital indemnity223 
Dental/vision65 
Life insurance149 
Other218 
Reinsurance(305)
Transition impact before income taxes410 23,507 
Less: income taxes86 4,937 
Total transition impact, net of income taxes$324 $18,570 
(1) Impact to retained earnings is driven primarily by capping the Transition Date NPR on Care products.

Transition Impact on the Liability for Future Policy Benefits

The Company adopted ASU 2018-12 using the modified retrospective transition method. The tables below present the disaggregated transition impacts to the Company’s LFPB as a result of adoption, split between the changes in the present
10


value of expected net premiums and the present value of expected future policy benefits as of the Transition Date and the LFPB rollforward for the year ended December 31, 2021. The locked-in discount rates on the policies held at the Transition Date reflect the locked-in rates in existence immediately before the Transition Date. See Note 7 of the Notes to the Consolidated Financial Statements for additional information.

Under the modified retrospective transition method, the NPR for future policy benefits existing as of the Transition Date considers the carryover basis of those liabilities, which equals the future policy benefits and unpaid policy claims balance as of December 31, 2020. If the revised Transition Date NPR for a cohort is greater than 100%, the Company capped the Transition Date NPR at 100% and increased the LFPB with an offsetting decrease to opening retained earnings.

The LFPB recorded in the consolidated balance sheet includes the deferred profit liability for limited-payment contracts. This deferred profit liability is not included in the Transition Date and LFPB rollforwards. For products with limited-payment features, to the extent the transition date adjustment related to updating cash flow assumptions is favorable, the Company increased the deferred profit liability.


11


The following table presents the transition impacts to the present value of expected net premiums by reporting segment and disaggregated by product type due to the cumulative effect of the change in accounting principle as a result of the adoption of ASU 2018-12 using the modified retrospective transition method.
Transition Impact at January 1, 2021
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Present value of expected premiums:
Balance at December 31, 2020$25,601 $21,270 $12,440 $2,080 $3,350 $1,921 $5,898 $1,376 $281 $710 $154 
Impact to retained earnings from capping Transition Date NPR0(1)0(398)00(4)00(5)(2)
Impact of deferred profit liability15 36 26 
Beginning balance at original discount rate25,616 21,276 12,476 1,708 3,350 1,921 5,894 1,376 281 705 152 
Effect of change in discount rate assumptions3,982 2,598 908 148 479 197 1,048 154 41 78 27 
Balance at January 1, 2021$29,598 $23,874 $13,384 $1,856 $3,829 $2,118 $6,942 $1,530 $322 $783 $179 

The following table presents the changes in the present value of expected net premiums by reporting segment and disaggregated by product type for the year ended December 31, 2021.
December 31, 2021
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Present value of expected premiums:
Balance at January 1, 2021$29,598 $23,874 $13,384 $1,856 $3,829 $2,118 $6,942 $1,530 $322 $783 $179 
Beginning balance at original discount rate (1)
25,616 21,276 12,476 1,708 3,350 1,921 5,894 1,376 281 705 152 
Effect of changes in cash flow assumptions32 88 40 (163)(129)(302)(26)31 
Effect of actual variances from expected
  experience
(134)(449)(135)(11)(109)(38)(290)(32)(14)34 (3)
Adjusted beginning of period balance25,514 20,915 12,381 1,698 3,078 1,754 5,302 1,344 241 770 149 
Issuances1,116 1,132 284 55 365 345 552 263 39 112 
Interest accrual586 439 202 27 116 61 210 45 10 25 
Net premium earned (2)
(2,206)(1,692)(1,609)(151)(552)(393)(665)(268)(47)(124)(19)
Foreign currency translation(2,539)(2,111)(1,194)(167)
Other(1)(2)(1)(8)(7)(8)(4)(2)(3)(1)
Ending balance at original discount rate22,470 18,681 10,064 1,461 2,999 1,760 5,391 1,380 241 780 135 
Effect of changes in discount rate assumptions3,423 2,493 783 125 284 102 632 87 23 54 18 
Balance at December 31, 2021$25,893 $21,174 $10,847 $1,586 $3,283 $1,862 $6,023 $1,467 $264 $834 $153 
(1) Includes the adjustment for capping the Transition Date NPR.
(2) Net premiums earned represent the portion of gross premiums collected from policyholders that is used to fund expected benefit payments.


12


The following table presents the transition impacts to the present value of expected future policy benefits by reporting segment and disaggregated by product type due to the cumulative effect of the change in accounting principle as a result of the adoption of ASU 2018-12 using the modified retrospective transition method.
Transition Impact at January 1, 2021
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Present value of expected future policy
  benefits:
Balance at December 31, 2020$64,056 $34,638 $43,729 $7,620 $3,818 $2,919 $13,427 $2,258 $599 $1,562 $661 
Effect of change in discount rate assumptions18,511 4,980 4,222 581 571 346 3,306 377 106 227 245 
Balance at January 1, 2021$82,567 $39,618 $47,951 $8,201 $4,389 $3,265 $16,733 $2,635 $705 $1,789 $906 

The following table presents the changes in the present value of expected future policy benefits by reporting segment and disaggregated by product type for the year ended December 31, 2021.
December 31, 2021
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Present value of expected future policy
  benefits:
Balance at January 1, 2021$82,567 $39,618 $47,951 $8,201 $4,389 $3,265 $16,733 $2,635 $705 $1,789 $906 
Beginning balance at original discount rate64,056 34,638 43,729 7,620 3,818 2,919 13,427 2,258 599 1,562 661 
Effect of changes in cash flow assumptions24 85 31 (11)(178)(143)(326)(3)(29)31 
Effect of actual variances from expected
  experience
(149)(458)(139)(15)(115)(41)(304)(36)(15)34 (3)
Adjusted beginning of period balance63,931 34,265 43,621 7,594 3,525 2,735 12,797 2,219 555 1,627 658 
Issuances1,133 1,155 287 62 372 355 563 271 40 115 
Interest accrual2,014 769 833 129 137 100 553 85 23 58 33 
Benefit payments(3,894)(1,313)(1,373)(238)(439)(520)(834)(275)(69)(107)(46)
Foreign currency translation(6,377)(3,478)(4,366)(760)
Other(1)
Ending balance at original discount rate56,807 31,398 39,002 6,787 3,594 2,670 13,079 2,300 549 1,694 645 
Effect of changes in discount rate assumptions15,940 4,623 3,718 535 355 201 2,309 252 67 149 192 
Balance at December 31, 202172,747 36,021 42,720 7,322 3,949 2,871 15,388 2,552 616 1,843 837 
Net liability for future policy benefits46,854 14,847 31,873 5,736 666 1,009 9,365 1,085 352 1,009 684 
Less: reinsurance recoverable2,150 10 
Net liability for future policy benefits after
  reinsurance recoverable
$46,854 $12,697 $31,873 $5,736 $666 $1,009 $9,365 $1,085 $352 $999 $684 

13


The following table presents a reconciliation of the rollforwards by reporting segment and disaggregated by product type for the year ended December 31, 2021 to the liability for future policy benefits as of December 31, 2021 under the amended guidance. The deferred profit liability for limited-payment contracts and reinsurance is presented together with the LFPB in the Consolidated Balance Sheets and has been included as a reconciling item in the table below.
(In millions)December 31,
2021
Balances included in future policy benefits rollforward:
Aflac Japan
Cancer$46,854 
Medical and other health14,847 
Life insurance31,873 
Other5,736 
Aflac U.S.
Accident666 
Disability1,009 
Critical care9,365 
Hospital indemnity1,085 
Dental/vision352 
Life insurance1,009 
Other684 
Corporate and other30 
Deferred profit liability - limited-payment contracts1,595 
Deferred profit liability - reinsurance859 
Total$115,964 

The adoption of this guidanceASU 2018-12 did not have a significantan impact on the Company's financial position, results of operations, or disclosures.balance for deferred policy acquisition costs upon adoption.


Compensation - Stock Compensation - Improvements to Employee Share-Based Payment Accounting: In March 2016, the FASB issued amendments which simplify several aspects for share-based payment award transactions, including income tax consequences, classification of awards as either liability or equity, and classification on the statement of cash flows. The Company adopted this guidance as of January 1, 2017.Accounting Pronouncements Pending Adoption


The amendment requires prospective recognition of excess tax benefits and deficiencies in the income statement, rather than in paid-in capital. As a result of applying this requirement, the Company believes that recognition of excess tax benefits will increase volatility in its statement of operations, but the adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures. 

The amendment also requires all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) to be recognized as income tax expense or benefit in the income statement. The guidance requires modified retrospective transition for settlements on all outstanding awards (both historical and future) that did not give rise to an excess benefit to be recorded through retained earnings on a cumulative-effect basis. The adoption of these amendments in the guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.

Additionally, the amendment requires that the minimum statutory tax withholding for all outstanding liability awards be reclassified at the date of adoption to equity (assuming equity classification results from the guidance change), and as a cumulative-effect adjustment to equity be recorded on a modified retrospective basis. The adoption of these amendments in the guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.

The guidance requires certain reclassifications of balances on the statement of cash flows to or from operating and financing activities. The reclassification guidance did not have a significant impact on the Company's statement of cash flows.

The amendment allows an entity to elect whether to use estimates of forfeitures, or to account for forfeitures as they occur, using modified retrospective application. The Company made an entity-wide accounting policy election to estimate the number of awards that are expected to vest (consistent with the Company's prior policy). The election and adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.

ASU 2023-02 Investments - Equity Method and Joint Ventures - Simplifying(Topic 323): Accounting for Investments in Tax Credit Structures Using the Transition to the EquityProportional Amortization Method of Accounting:

In March 2016,2023, the FASB issued amendments whicheliminate the requirement that when an investment qualifiesto permit reporting entities to elect to account for usetheir tax equity investments, regardless of the equitytax credit program from which the income tax credits are received, using the proportional amortization method as a result ofif certain conditions are met. Under the proportional amortization method, an increase inentity amortizes the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. Per the amendments, upon qualifying for the equity method of accounting, no retroactive adjustmentinitial cost of the investment is required. The amendments also require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The Company adopted this guidance as of January 1, 2017. The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.

Derivatives and Hedging - Contingent Put and Call Options in Debt Instruments: In March 2016, the FASB issued amendments which clarify what steps are required when assessing whether the economic characteristics and risks of call (put) options are clearly and closely relatedproportion to the economic characteristicsincome tax credits and risks of their debt hosts, which is one ofother income tax benefits received and recognizes the criteria for bifurcating an embedded derivative. Consequently, when a call (put) option is contingently exercisable, an entity does not have to assess whether the event that triggers the ability to exercise a call (put) option is

related to interest rates or credit risks. The Company adopted this guidance as of January 1, 2017. The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.

Derivativesnet amortization and Hedging - Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships: In March 2016, the FASB issued amendments which clarify that a changeincome tax credits and other income tax benefits in the counterparty toincome statement as a derivative instrument that has been designated as the hedging instrument does not, in andcomponent of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria remain intact. The Company adopted this guidance as of January 1, 2017. The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.income tax expense (benefit).


Accounting Pronouncements Pending Adoption

Derivatives and Hedging -Targeted Improvements to Accounting for Hedging Activities: In August 2017, FASB issued guidance which improves and simplifies the accounting rules around hedge accounting and will create more transparency around how economic results are presented on financial statements. Issues addressed in this new guidance include: 1) risk component hedging, 2) accounting for the hedged item in fair value hedges of interest rate risk, 3) recognition and presentation of the effects of hedging instruments, and 4) amounts excluded from the assessment of hedge effectiveness. The amendments are effective for public business entities for fiscal years beginning after December 15, 2018, and2023, including interim periods within those fiscal years. Early applicationadoption is permitted and if an entity adopts the amendments in anyan interim period, after issuanceit shall adopt them as of the guidance. beginning of the fiscal year that includes that interim period.

The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, or disclosures.

Compensation-Stock Compensation: Scope of Modification Accounting: In May 2017, the FASB issued amendments to provide guidance clarifying when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. An entity should apply modification accounting if the fair value, vesting conditions or classification of the award (as an equity instrument or liability instrument) changes as a result of the change in terms or conditions of the award. The amendments are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted and should be applied prospectively. The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, or disclosures.

Receivables-Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities: In March 2017, the FASB issued amendments to shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount. The amendments are effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, or disclosures.

Compensation-Retirement Benefit: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost: In March 2017, the FASB issued amendments requiring that an employer report the service cost component of net periodic pension cost and net periodic postretirement benefit cost in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net periodic pension cost and net periodic postretirement benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. If a separate line item or items are used to present the other components of net benefit cost, that line item or items must be appropriately described. If a separate line item or items are not used, the line item or items used in the income statement to present the other components of net benefit cost must be disclosed. The amendments in this update also allow only the service cost component to be eligible for capitalization when applicable. The amendments are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, disclosures, or statements of cash flows.

Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets - Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets: In February 2017, the FASB issued amendments that clarify the scope and accounting guidance for the derecognition of a nonfinancial asset or a financial asset that meets the definition of an "in substance nonfinancial asset." The amendments define an "in substance nonfinancial asset" and provide additional accounting guidance for partial sales of nonfinancial assets. The amendments are effective for public business entities for fiscal years beginning after December 15, 2017, and interim

periods within those fiscal years. Earlier adoption is permitted for fiscal years beginning after December 15, 2016, including interim periods therein. An entity is required to apply the amendments at the same time that it applies the FASB amendments for Revenue from Contracts with Customers. The Company does not expect the adoption of this guidance to have a significant impact on its financial position, results of operations, disclosures, and statements of cash flows.

Intangibles - Goodwill and Other - Simplifying the Test for Goodwill Impairment: In January 2017, the FASB issued amendments simplifying the subsequent measurement of goodwill. An entity, under this update, is no longer required to perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, the entity should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. The amendments are effective for public business entities that are U.S. Securities and Exchange Commission (SEC) filers for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for any goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have a significant impact on its financial position, results of operations, or disclosures.

Business Combinations - Clarifying the Definition of a Business: In January 2017, the FASB issued amendments clarifying when a set of assets and activities is a business. The amendments provide a screen to exclude transactions where substantially all the fair value of the transferred set is concentrated in a single asset, or group of similar assets, from being evaluated as a business. The amendments are effective for public business entities beginning after December 15, 2017, including interim periods within those periods. The Company does not expect the adoption of this guidance to have a significant impact on its financial position, results of operations, or disclosures.

Statement of Cash Flows - Restricted Cash: In November 2016, the FASB issued amendments requiring that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The amendments are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. The Company does not expect the adoption of this guidance to have a significant impact on its financial position, results of operations, disclosures, or statement of cash flows.

Income Taxes - Intra-Entity Transfers of Assets Other Than Inventory: In October 2016, the FASB issued amendments that require an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments are effective for public business entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. Early adoption is permitted. The Company is evaluating the impact of adoption of this guidance on its financial position, results of operations, and disclosures.

Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments: In August 2016, the FASB issued amendments that provide guidance on eight specific statement of cash flows classification issues. The amendments are effective for public companies for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted for any interim or annual period. The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, disclosures, or statements of cash flows.

Financial Instruments - Credit Losses - Measurement of Credit Losses on Financial Instruments: In June 2016, the FASB issued amendments that require a financial asset (or a group of financial assets) measured on an amortized cost basis to be presented net of an allowance for credit losses in order to reflect the amount expected to be collected on the financial asset(s). The measurement of expected credit losses is amended by replacing the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform about a credit loss. Credit losses on available-for-sale debt securities will continue to be measured in a manner similar to current U.S. GAAP. However, the amendments require that credit losses be presented as an allowance rather than as a writedown. Other amendments include changes to the balance sheet presentation and interest income recognition of purchased financial assets with a more-than-insignificant amount of credit deterioration since origination. The amendments are effective for public companies for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Companies may early adopt this guidance as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company has identified certain financial instruments in scope of this guidance to include certain fixed maturity securities, loans and loan receivables and reinsurance recoverables (See Notes 3 and 7 for current balances of instruments in scope). The Company continues to evaluate the impact of adoption of this guidance on its financial position, results of operations, and disclosures.

Leases: In February 2016, the FASB issued updated guidance for accounting for leases. Per the amendments, lessees will be required to recognize all leases on the balance sheet with the exception of short-term leases. A lease liability will be recorded for the obligation of a lessee to make lease payments arising from a lease. A right-of-use asset will be recorded which represents the lessee’s right to use, or to control the use of, a specified asset for a lease term. Under the new guidance, lessor accounting is largely unchanged. The amendments are effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The Company has identified certain operating leases in scope of this guidance to include office space and equipment leases (See Note 15 of the Notes to the Consolidated Financial Statements in the 2016 Annual Report for current balances of leases in scope). The leases within scope of this guidance will increase the Company's right-of-use assets and lease liabilities recorded on its statement of financial position, however the Company estimates leases within scope of the guidance to represent less than 1% of its total assets as of September 30, 2017. The Company estimates that the adoption of this guidance will not have a significant impact on its financial position, results of operations, and disclosures.

Financial Instruments - Overall - Recognition and Measurement of Financial Assets and Financial Liabilities: In January 2016, the FASB issued guidance to address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The main provisions require that equity investments be measured at fair value with changes recognized in net income; that changes in instrument-specific credit risk for financial liabilities that are measured under the fair value option be recognized in other comprehensive income; and that entities would make the assessment of the ability to realize a deferred tax asset (DTA) related to an available-for-sale (AFS) debt security in combination with the entity's other DTAs. The amendments are effective for public companies for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is not permitted, with the exception of the own credit provision if an entity has elected to measure a liability at fair value. The Company has identified certain financial instruments in scope of this guidance to include certain fixed maturity securities, perpetual securities and equity securities (See Note 3 for current balances of instruments in scope). The Company estimates that the impact of this guidance will increase volatility in its statement of operations and the Company continues to evaluate the impact of this guidance on its statement of financial position, results of operations, and disclosures.

Revenue from Contracts with Customers: In May 2014, the FASB issued updated guidance that affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards (e.g., insurance contracts or lease contracts). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB deferred the effective date for this standard to annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods. The Company has identified revenue in scope of this guidance to include certain revenues associated with affiliated entities in support of its operations. The Company estimates the revenue within scope of the guidance to represent less than 1% of its total revenues as of September 30, 2017. The Company estimates that the adoption of this guidance will not have a significant impact on its financial position, results of operations, and disclosures.


Recent accounting guidance not discussed above is not applicable, did not have, or is not expected to have a material impact to the Company's business. 


For additional information on new accounting pronouncements and recent accounting guidance and their impact, if any, on the Company's financial position, or results of operations or disclosures, see Note 1 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.

14


2.BUSINESS SEGMENT INFORMATION


2.    BUSINESS SEGMENT INFORMATION

The Company consists of two reportable insurance business segments: Aflac Japan and Aflac U.S., both of which sell supplemental health and life insurance. OperatingIn addition, the Parent Company, other operating business segmentsunits that are not individually reportable, and business activities, including reinsurance retrocession activities, not included in Aflac Japan or Aflac U.S. are included in the "Other business segments" category.Corporate and other.


The Company does not allocate corporate overhead expenses to business segments. Consistent with U.S. GAAP accounting guidance for segment reporting, the Company evaluates and manages its business segments using a financial performance measure called pretax operatingadjusted earnings. Adjusted earnings are adjusted revenues less benefits and adjusted expenses. The Company's definition of operating earnings includes interest

cash flows associated with notes payableadjustments to both revenues and amortized hedge costs related to foreign currency denominated investments, but excludesexpenses account for certain items that cannot be predicted or that are outside of management's control, such as realizedmanagement’s control. Adjusted revenues are U.S. GAAP total revenues excluding net investment gains and losses, from securities transactions, impairments, change in loan loss reserves and certain derivative andexcept for amortized hedge costs/income related to foreign currency activities;exposure management strategies and net interest cash flows from derivatives associated with certain investment strategies. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring items; andor other non-operating income (loss) from net earnings. Nonrecurring and other non-operating items consist of infrequent events and activity not associated with the normal course of the Company’s insurance operations and that do not reflect Aflac’sthe Company's underlying business performance. The Company excludes income taxes related to operations to arrive at pretax operatingadjusted earnings. Information regarding operations by reportable segment and Corporate and other, follows:
  
Three Months Ended March 31,
(In millions)20232022
Revenues:
Aflac Japan:
   Net earned premiums$2,170 $2,625 
   Adjusted net investment income (1),(2)
611 680 
   Other income9 
               Total adjusted revenue Aflac Japan2,790 3,314 
Aflac U.S.:
   Net earned premiums1,428 1,413 
   Adjusted net investment income (3)
197 184 
   Other income35 42 
           Total adjusted revenue Aflac U.S.1,660 1,639 
Corporate and other (4),(5)
129 74 
           Total adjusted revenues4,579 5,027 
Net investment gains (losses) (1),(2),(3),(4)
221 146 
           Total revenues$4,800 $5,173 
  
Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions)2017 2016 2017 2016 
Revenues:        
Aflac Japan:        
   Net earned premiums$3,200
 $3,596
 $9,616
 $10,177
 
   Net investment income, less amortized hedge costs (1)
561
 607
 1,676
 1,802
 
   Other income11
 10
 31
 29
 
               Total Aflac Japan3,772
 4,213
 11,323
 12,008
 
Aflac U.S.:        
   Net earned premiums1,393
 1,365
 4,172
 4,093
 
   Net investment income181
 176
 539
 526
 
   Other income1
 1
 3
 5
 
               Total Aflac U.S.1,575
 1,542
 4,714
 4,624
 
Other business segments69
 71
 204
 207
 
               Total business segment revenues5,416
 5,826
 16,241
 16,839
 
Corporate and eliminations19
 20
 59
 63
 
             Total operating revenues5,435
 5,846
 16,300
 16,902
 
Realized investment gains (losses) (1), (2), (3)
71
 (130) (57) (298) 
           Total revenues$5,506
 $5,716
 $16,243
 $16,604
 
(1) Amortized hedge costs related to hedging U.S. dollar-denominated investments held in Aflac Japan were $60of $58 and $54$26 for the three-month periods ended March 31, 2023, and $168 and $123 for the nine-month periods ended September 30, 2017, and 2016,2022, respectively, andrelated to certain foreign currency exposure management strategies have been reclassified from realizednet investment gains (losses) and reported as a deduction from net investment income when analyzing segment operations to conform to current year reporting.operations.
(2)Excluding a gain Net interest cash flows from derivatives associated with certain investment strategies of $19$(62) and $20$(10) for the three-month periods ended March 31, 2023, and $602022, respectively, have been reclassified from net investment gains (losses) and $64included in adjusted earnings as a component of net investment income when analyzing operations.
(3) Net interest cash flows from derivatives associated with certain investment strategies of $(7) and $1 for the nine-monththree-month periods ended September 30, 2017,March 31, 2023, and 2016,2022, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income when analyzing operations.
(4) Amortized hedge income of $29and $11 for the three-month periods ended March 31, 2023, and 2022, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase to net investment income when analyzing operations.
(5) The change in value of federal historic rehabilitation and solar investments in partnerships of $51 and $12 for the three-month periods ended March 31, 2023, and 2022, respectively, is included as a reduction to net investment income. Tax credits on these investments of $52 and $16 for the three-month periods ended March 31, 2023, and 2022, respectively, have been recorded as an income tax benefit in the consolidated statement of earnings. See Note 3 of the Notes to the Consolidated Financial Statements for additional information on these investments.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
15



  
Three Months Ended March 31,
(In millions)20232022
Pretax earnings:
Aflac Japan (1),(2)
$788 $870 
Aflac U.S. (3)
352 333 
Corporate and other (4),(5),(6)
(7)(42)
    Pretax adjusted earnings (7)
1,133 1,161 
Net investment gains (losses) (1),(2),(3),(4),(5)
209 134 
Other income (loss)0 (1)
    Total earnings before income taxes$1,342 $1,294 
Income taxes applicable to pretax adjusted earnings$180 $219 
Effect of foreign currency translation on after-tax
  adjusted earnings
(41)(35)
(1) Amortizedhedge costs of $58 and $26 for the three-month periods ended March 31, 2023, and 2022, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.
(2) Net interest cash flows from derivatives associated with certain investment strategies of $(62) and $(10) for the three-month periods ended March 31, 2023, and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income when analyzing operations.
(3) Net interest cash flows from derivatives associated with certain investment strategies of $(7) and $1 for the three-month periods ended March 31, 2023, and 2022, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income when analyzing operations.
(4) Amortized hedge income of $29 and $11 for the three-month periods ended March 31, 2023, and 2022, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase in net investment income when analyzing operations.
(5) A gain of $12 and $13 for the three-month periods ended March 31, 2023, and 2022, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable which is classified as an operating gain when analyzing segment operations
(3)Prior year foreign currency transaction gains and losses havehas been reclassified from other non-operating income (loss) to realizednet investment gains (losses) to conform to current-year reporting classifications. These reclassifications had no impact on total revenues.and included in adjusted earnings when analyzing operations.

  
Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions)2017 2016 2017 2016 
Pretax earnings:        
Aflac Japan (1)
$748
 $827
 $2,308
 $2,436
 
Aflac U.S.316
 323
 956
 946
 
Other business segments5
 4
 9
 12
 
    Total business segment pretax operating earnings1,069
 1,154
 3,273
 3,394
 
Interest expense, noninsurance operations(30) (31) (89) (90) 
Corporate and eliminations(25) (31) (70) (91) 
    Pretax operating earnings1,014
 1,092
 3,114
 3,213
 
Realized investment gains (losses) (1), (2), (3)
71
 (130) (57) (298) 
Other non-operating income (loss) (3)
(10) 1
 (38) (1) 
    Total earnings before income taxes$1,075
 $963
 $3,019
 $2,914
 
Income taxes applicable to pretax operating earnings$338
 $379
 $1,031
 $1,112
 
Effect of foreign currency translation on after-tax
operating earnings
(29) 61
 (31) 110
 
(1) Amortizedhedge costs related to hedging U.S. dollar-denominated(6) The change in value of federal historic rehabilitation and solar investments held in Aflac Japan were $60partnerships of $51 and $54$12 for the three-month periods ended March 31, 2023, and $168 and $123 for the nine-month periods ended September 30, 2017, and 2016,2022, respectively, and have been reclassified from realized investment gains (losses) and reportedis included as a deduction from pretax operating earnings when analyzing segment operationsreduction to conform to current year reporting.
(2) Excluding a gainnet investment income. Tax credits on these investments of $19$52 and $20$16 for the three-month periods ended March 31, 2023, and $602022, respectively, have been recorded as an income tax benefit in the consolidated statement of earnings. See Note 3 of the Notes to the Consolidated Financial Statements for additional information on these investments.
(7) Includes $34 and $64$41 for the nine-monththree-month periods ended September 30, 2017,March 31, 2023, and 2016,2022, respectively, of interest expense on debt.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to the interest rate component of the change in fair value of foreign currency swaps on notes payable which is classified as an operating gain when analyzing segment operationsaccounting for long-duration insurance contracts.
(3)Prior year foreign currency transaction gains and losses have been reclassified from other non-operating income (loss) to realized investment gains (losses) to conform to current-year reporting classifications. These reclassifications had no impact on total earnings before income taxes.

Assets were as follows:
(In millions)March 31,
2023
December 31,
2022
Assets:
Aflac Japan$108,762 $105,734 
Aflac U.S.21,385 21,002 
Corporate and other4,819 5,002 
    Total assets$134,966 $131,738 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

16
(In millions)September 30,
2017
 December 31,
2016
Assets:       
Aflac Japan $113,625
   $107,858
 
Aflac U.S. 20,348
   19,453
 
Other business segments 513
   270
 
    Total business segment assets 134,486
   127,581
 
Corporate and eliminations 1,597
   2,238
 
    Total assets $136,083
   $129,819
 



3.     INVESTMENTS

3.INVESTMENTS
Investment Holdings
The amortized cost for the Company's investments in debt and perpetualfixed maturity securities, the cost for equity securities and the fair values of these investments are shown in the following tables.
  
March 31, 2023
(In millions)
Amortized
Cost
Allowance for Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
  Fair
  Value
Securities available for sale, carried at fair
  value through other comprehensive income:
Fixed maturity securities:
  Yen-denominated:
Japan government and agencies$25,264 $0 $1,534 $1,079 $25,719 
Municipalities1,028 0 152 42 1,138 
Mortgage- and asset-backed securities238 0 9 8 239 
Public utilities3,979 0 351 63 4,267 
Sovereign and supranational543 0 31 3 571 
Banks/financial institutions6,313 0 337 427 6,223 
Other corporate6,402 0 705 309 6,798 
Total yen-denominated43,767 0 3,119 1,931 44,955 
  U.S. dollar-denominated:
U.S. government and agencies179 0 0 5 174 
Municipalities1,280 0 53 55 1,278 
Mortgage- and asset-backed securities2,307 0 90 69 2,328 
Public utilities3,479 0 315 128 3,666 
Sovereign and supranational132 0 36 11 157 
Banks/financial institutions2,966 0 316 85 3,197 
Other corporate21,196 0 1,946 798 22,344 
Total U.S. dollar-denominated31,539 0 2,756 1,151 33,144 
Total securities available for sale$75,306 $0 $5,875 $3,082 $78,099 

17


September 30, 2017
December 31, 2022
(In millions)Cost or
Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
   Fair
  Value
(In millions)Amortized
Cost
Allowance for Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
  Value
Securities available for sale, carried at fair value:         
Fixed maturities:         
Securities available for sale, carried at fair
value through other comprehensive income:
Securities available for sale, carried at fair
value through other comprehensive income:
Fixed maturity securities:Fixed maturity securities:
Yen-denominated:          Yen-denominated:
Japan government and agencies $27,027
 $3,272
 $423
 $29,876
 Japan government and agencies$25,418 $$1,259 $1,724 $24,953 
Municipalities 315
 26
 15
 326
 Municipalities1,034 124 61 1,097 
Mortgage- and asset-backed securities 248
 29
 0
 277
 Mortgage- and asset-backed securities241 12 237 
Public utilities 1,643
 369
 7
 2,005
 Public utilities3,932 301 108 4,125 
Sovereign and supranational 1,428
 190
 3
 1,615
 Sovereign and supranational659 24 678 
Banks/financial institutions 3,307
 494
 59
 3,742
 Banks/financial institutions6,348 324 531 6,141 
Other corporate 3,811
 771
 25
 4,557
 Other corporate6,288 555 408 6,435 
Total yen-denominated 37,779
 5,151
 532
 42,398
 Total yen-denominated43,920 2,595 2,849 43,666 
U.S. dollar-denominated:          U.S. dollar-denominated:
U.S. government and agencies 150
 12
 0
 162
 U.S. government and agencies169 161 
Municipalities 818
 148
 0
 966
 Municipalities1,269 43 89 1,223 
Mortgage- and asset-backed securities 166
 13
 0
 179
 Mortgage- and asset-backed securities1,926 67 84 1,909 
Public utilities 5,231
 813
 34
 6,010
 Public utilities3,481 240 180 3,541 
Sovereign and supranational 325
 89
 0
 414
 Sovereign and supranational133 35 12 156 
Banks/financial institutions 2,683
 592
 7
 3,268
 Banks/financial institutions2,992 271 105 3,158 
Other corporate 25,092
 2,388
 462
 27,018
 Other corporate21,579 1,549 1,201 21,927 
Total U.S. dollar-denominated 34,465
 4,055
 503
 38,017
 Total U.S. dollar-denominated31,549 2,205 1,679 32,075 
Total fixed maturities 72,244
 9,206
 1,035
 80,415
 
Perpetual securities:         
Yen-denominated:         
Banks/financial institutions 1,308
 277
 32
 1,553
 
Other corporate 195
 41
 0
 236
 
U.S. dollar-denominated:         
Banks/financial institutions 46
 28
 0
 74
 
Total perpetual securities 1,549
 346
 32
 1,863
 
Equity securities: 

 

 

 

 
Yen-denominated 555
 95
 2
 648
 
U.S. dollar-denominated 256
 30
 6
 280
 
Total equity securities 811
 125
 8
 928
 
Total securities available for sale $74,604
 $9,677
 $1,075
 $83,206
 Total securities available for sale$75,469 $$4,800 $4,528 $75,741 


  
March 31, 2023
(In millions)
Amortized
Cost
Allowance for Credit LossesNet Carrying AmountGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair  
Value  
Securities held to maturity, carried at
  amortized cost:
Fixed maturity securities:
  Yen-denominated:
Japan government and agencies$18,154 $2 $18,152 $2,548 $0 $20,700 
Municipalities285 0 285 56 0 341 
Public utilities37 0 37 5 0 42 
Sovereign and supranational447 4 443 67 0 510 
Other corporate19 0 19 4 0 23 
Total yen-denominated18,942 6 18,936 2,680 0 21,616 
Total securities held to maturity$18,942 $6 $18,936 $2,680 $0 $21,616 

18


September 30, 2017
December 31, 2022
(In millions)Cost or
Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Fair  
Value  
(In millions)Amortized
Cost
Allowance for Credit LossesNet Carrying AmountGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair  
Value
Securities held to maturity, carried at amortized cost:         Securities held to maturity, carried at
amortized cost:
Fixed maturities:         
Fixed maturity securities:Fixed maturity securities:
Yen-denominated:          Yen-denominated:
Japan government and agencies $21,385
 $5,070
 $0
 $26,455
 Japan government and agencies$18,269 $$18,267 $2,045 $$20,312 
Municipalities 359
 104
 0
 463
 Municipalities287 287 48 335 
Mortgage- and asset-backed securities 27
 2
 0
 29
 
Public utilities 3,308
 426
 0
 3,734
 Public utilities38 37 41 
Sovereign and supranational 1,527
 319
 0
 1,846
 Sovereign and supranational450 446 54 500 
Banks/financial institutions 2,700
 205
 18
 2,887
 
Other corporate 2,692
 493
 0
 3,185
 Other corporate19 19 22 
Total yen-denominated 31,998
 6,619
 18
  38,599
 Total yen-denominated19,063 19,056 2,154 21,210 
Total securities held to maturity $31,998
 $6,619
 $18
 $38,599
 Total securities held to maturity$19,063 $$19,056 $2,154 $$21,210 


(In millions)March 31,
2023
December 31, 2022
Equity securities, carried at fair value through net earnings:Fair ValueFair Value
Equity securities:
      Yen-denominated$679 $670 
      U.S. dollar-denominated360 374 
Other currencies48 47 
Total equity securities$1,087 $1,091 
  
December 31, 2016
(In millions)Cost or
Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
   Fair
  Value
Securities available for sale, carried at fair value:               
Fixed maturities:               
  Yen-denominated:               
Japan government and agencies $22,857
   $3,359
   $160
   $26,056
 
Municipalities 246
   29
   8
   267
 
Mortgage- and asset-backed securities 1,096
   33
   8
   1,121
 
Public utilities 1,533
   318
   3
   1,848
 
Sovereign and supranational 862
   186
   5
   1,043
 
Banks/financial institutions 2,673
   403
   74
   3,002
 
Other corporate 3,192
   623
   3
   3,812
 
Total yen-denominated 32,459
   4,951
   261
   37,149
 
  U.S dollar-denominated:               
U.S. government and agencies 148
   10
   0
   158
 
Municipalities 894
   142
   8
   1,028
 
Mortgage- and asset-backed securities 196
   20
   0
   216
 
Public utilities 5,205
   690
   60
   5,835
 
Sovereign and supranational 335
   91
   0
   426
 
Banks/financial institutions 2,570
   507
   16
   3,061
 
Other corporate 24,556
   2,021
   690
   25,887
 
Total U.S. dollar-denominated 33,904
   3,481
   774
   36,611
 
Total fixed maturities 66,363
   8,432
   1,035
   73,760
 
Perpetual securities:               
  Yen-denominated:               
Banks/financial institutions 1,266
   128
   49
   1,345
 
Other corporate 189
   24
   0
   213
 
  U.S. dollar-denominated:               
Banks/financial institutions 51
   24
   0
   75
 
Total perpetual securities 1,506
   176
   49
   1,633
 
Equity securities:               
      Yen-denominated 624
   83
   2
   705
 
      U.S. dollar-denominated 579
   31
   6
   604
 
Total equity securities 1,203
   114
   8
   1,309
 
Total securities available for sale $69,072
   $8,722
   $1,092
   $76,702
 

  
December 31, 2016
(In millions)Cost or
Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Fair
Value
Securities held to maturity, carried at amortized cost:               
Fixed maturities:               
  Yen-denominated:               
Japan government and agencies $20,702
   $5,338
   $0
   $26,040
 
Municipalities 350
   107
   0
   457
 
Mortgage- and asset-backed securities 30
   2
   0
   32
 
Public utilities 3,201
   358
   23
   3,536
 
Sovereign and supranational 2,602
   283
   8
   2,877
 
Banks/financial institutions 3,731
   195
   26
   3,900
 
Other corporate 2,734
   452
   7
   3,179
 
Total yen-denominated 33,350
   6,735
   64
   40,021
 
Total securities held to maturity $33,350
   $6,735
   $64
   $40,021
 


The methods of determining the fair values of the Company's investments in fixed-maturity securities, perpetualfixed maturity securities and equity securities are described in Note 5.


During the third quarter of 2017, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category. During the second quarter of 2017, the Company reclassified three investments from the held-to-maturity category to the available-for-sale category as a result of the issuers' credit rating being downgraded to below investment grade. At the time of the transfer, the securities had an amortized cost of $773 million and an unrealized gain of $47 million. During the first quarter of 2017,2023 and 2022, respectively, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category.


During the first nine months of 2016, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category.
Contractual and Economic Maturities

The contractual and economic maturities of the Company's investments in fixed maturitiesmaturity securities at September 30, 2017,March 31, 2023, were as follows:
19


Aflac Japan Aflac U.S.
(In millions)Amortized
Cost
 Fair
Value
 Amortized
Cost
 Fair  
Value  
(In millions)
Amortized
Cost
(1)
Fair
Value
Available for sale:         Available for sale:
Due in one year or less $175
 $181
 $53
 $54
 Due in one year or less$1,690 $1,765 
Due after one year through five years 5,734
 6,029
 637
 682
 Due after one year through five years6,964 7,350 
Due after five years through 10 years 9,078
 9,668
 3,253
 3,529
 Due after five years through 10 years15,878 17,289 
Due after 10 years 43,860
 49,502
 8,443
 9,698
 Due after 10 years48,230 49,128 
Mortgage- and asset-backed securities 290
 330
 40
 42
 Mortgage- and asset-backed securities2,544 2,567 
Total fixed maturities available for sale $59,137
 $65,710
 $12,426
 $14,005
 
Total fixed maturity securities available for saleTotal fixed maturity securities available for sale$75,306 $78,099 
Held to maturity:         Held to maturity:
Due in one year or less $488
 $497
 $0
 $0
 Due in one year or less$$
Due after one year through five years 923
 970
 0
 0
 Due after one year through five years40 42 
Due after five years through 10 years 1,638
 1,810
 0
 0
 Due after five years through 10 years10,067 11,271 
Due after 10 years 28,922
 35,293
 0
 0
 Due after 10 years8,829 10,303 
Mortgage- and asset-backed securities 27
 29
 0
 0
 Mortgage- and asset-backed securities
Total fixed maturities held to maturity $31,998
 $38,599
 $0
 $0
 
Total fixed maturity securities held to maturityTotal fixed maturity securities held to maturity$18,936 $21,616 

(1) Net of allowance for credit losses


At September 30, 2017,Economic maturities are used for certain debt instruments with no stated maturity where the Parent Company and other business segments had portfoliosexpected maturity date is based on the combination of available-for-sale fixed-maturity securities totaling $681 million at amortized cost and $700 million at fair value, which are not includedfeatures in the table above.

Expected maturities may differ from contractual maturities because some issuers havefinancial instrument such as the right to call or prepay obligations with or without call or prepayment penalties.changes in coupon rates.

The majority of the Company's perpetual securities are subordinated to other debt obligations of the issuer, but rank higher than the issuer's equity securities. Perpetual securities have characteristics of both debt and equity investments, along with unique features that create economic maturity dates for the securities. Although perpetual securities have no contractual maturity date, they have stated interest coupons that were fixed at their issuance and subsequently change to a floating short-term interest rate after some period of time. The instruments are generally callable by the issuer at the time of changing from a fixed coupon rate to a new variable rate of interest, which is determined by the combination of some market index plus a fixed amount of basis points. The net effect is to create an expected maturity date for the instrument. The economic maturities of the Company's investments in perpetual securities, which were all reported as available for sale at September 30, 2017, were as follows:
  
Aflac Japan Aflac U.S.
(In millions)Amortized
Cost
 Fair
Value
 Amortized
Cost
 Fair  
Value  
Due in one year or less $84
   $85
   $0
   $0
 
Due after one year through five years 194
   236
   0
   0
 
Due after 10 years 1,232
   1,482
   39
   60
 
Total perpetual securities available for sale $1,510
   $1,803
   $39
   $60
 


Investment Concentrations


The Company's process for investing in credit-related investments begins with an independent approach to underwriting each issuer's fundamental credit quality. The Company evaluates independently those factors that it believes could influence an issuer's ability to make payments under the contractual terms of the Company's instruments. This includes a thorough analysis of a variety of items including the issuer's country of domicile (including political, legal, and financial considerations); the industry in which the issuer competes (with an analysis of industry structure, end-market dynamics, and regulation); company specific issues (such as management, assets, earnings, cash generation, and capital needs); and contractual provisions of the instrument (such as financial covenants and position in the capital structure). The Company further evaluates the investment considering broad business and portfolio management objectives, including asset/liability needs, portfolio diversification, and expected income.


Investment exposures that individually exceeded 10% of shareholders' equity were as follows:
March 31, 2023December 31, 2022
(In millions)Credit
Rating
Amortized
Cost
Fair
Value
Credit
Rating
Amortized
Cost
Fair
Value
Japan National Government(1)
A+$42,355$45,299A+$42,618$44,178
 September 30, 2017 December 31, 2016
(In millions)Credit
Rating
 Amortized
Cost
 Fair
Value
 Credit
Rating
 Amortized
Cost
 Fair
Value
Japan National Government(1)
A $47,637 $55,444 A $42,931 $51,345
(1)Japan Government Bonds (JGBs) or JGB-backed securities





20


RealizedNet Investment Gains and Losses


Information regarding pretax realizednet gains and losses from investments is as follows:
  
Three Months Ended March 31,
(In millions)20232022
Net investment gains (losses):
Sales and redemptions:
Fixed maturity securities available for sale:
Gross gains from sales$1 $70 
Gross losses from sales(3)(3)
Foreign currency gains (losses)59 10 
Other investments:
Gross gains from sales0 
Total sales and redemptions57 86 
Equity securities(3)(156)
Credit losses:
Fixed maturity securities held to maturity1 
Commercial mortgage and other loans(31)16 
Loan commitments3 
Reinsurance recoverables and other(3)
Total credit losses(30)25 
Derivatives and other:
Derivative gains (losses)17 (466)
Foreign currency gains (losses)82 633 
Total derivatives and other99 167 
Total net investment gains (losses)$123 $122 
  
Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions)2017 2016 2017 2016 
Realized investment gains (losses):        
Fixed maturities:        
Available for sale:        
Gross gains from sales$10
 $2
 $27
 $10
 
Gross losses from sales(8) (22) (38) (38) 
Net gains (losses) from redemptions14
 1
 (24) 88
 
Other-than-temporary impairment losses(2) (1) (9) (23) 
Total fixed maturities14
 (20) (44) 37
 
Perpetual securities:        
Available for sale:        
Net gains (losses) from redemptions0
 0
 4
 40
 
Other-than-temporary impairment losses0
 0
 0
 (2) 
Total perpetual securities0
 0
 4
 38
 
Equity securities:        
Gross gains from sales54
 5
 102
 10
 
Gross losses from sales(9) 0
 (11) (10) 
Other-than-temporary impairment losses(6) (22) (18) (46) 
Total equity securities39
 (17) 73
 (46) 
Derivatives and other:        
Derivative gains (losses)(40) (107) (143) (278) 
Foreign currency gains (losses)17
 (20) (56) (109) 
  Total derivatives and other(23) (127) (199) (387) 
  Total realized investment gains (losses)$30
 $(164) $(166) $(358) 

Prior year foreign currency transactionThe unrealized holding losses, net of gains, recorded as a component of net investment gains and losses have been reclassifiedfor the three-month period ended March 31, 2023, that relate to conform to current-yearequity securities still held at the March 31, 2023 reporting classificationsdate, were $5 million.


Unrealized Investment Gains and Losses
Effect on Shareholders’ Equity
The net effect on shareholders’ equity of unrealized gains and losses from investmentfixed maturity securities was as follows:
(In millions)March 31,
2023
December 31,
2022
Unrealized gains (losses) on securities available for sale$2,793 $272 
Deferred income taxes(1,504)(974)
Shareholders’ equity, unrealized gains (losses) on fixed maturity securities$1,289 $(702)
(In millions)September 30, 2017 December 31,
2016
Unrealized gains (losses) on securities available for sale $8,602
   $7,630
 
Deferred income taxes (3,165)   (2,825) 
Shareholders’ equity, unrealized gains (losses) on investment securities $5,437
   $4,805
 

Gross Unrealized Loss Aging
The following tables show the fair values and gross unrealized losses of the Company's available-for-sale investments for the periods ended March 31, 2023 and held-to-maturity investments that were in an unrealized loss position,December 31, 2022, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position.

21



  
March 31, 2023
  
TotalLess than 12 months12 months or longer
(In millions)Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fixed maturity securities available
   for sale:
  U.S. government and
      agencies:
  U.S. dollar-denominated$149 $5 $62 $1 $87 $4 
  Japan government and
      agencies:
  Yen-denominated8,845 1,079 565 77 8,280 1,002 
  Municipalities:
  U.S. dollar-denominated817 55 356 13 461 42 
  Yen-denominated303 42 57 4 246 38 
Mortgage- and asset-
    backed securities:
  U.S. dollar-denominated1,007 69 753 58 254 11 
  Yen-denominated70 8 5 0 65 8 
  Public utilities:
  U.S. dollar-denominated1,380 128 776 53 604 75 
      Yen-denominated726 63 37 2 689 61 
  Sovereign and supranational:
  U.S. dollar-denominated31 11 0 0 31 11 
  Yen-denominated72 3 35 3 37 0 
  Banks/financial institutions:
  U.S. dollar-denominated982 85 448 17 534 68 
  Yen-denominated3,907 427 736 43 3,171 384 
  Other corporate:
  U.S. dollar-denominated8,128 798 3,297 119 4,831 679 
  Yen-denominated2,064 309 753 72 1,311 237 
  Total$28,481 $3,082 $7,880 $462 $20,601 $2,620 

22


September 30, 2017
December 31, 2022
Total Less than 12 months 12 months or longer
TotalLess than 12 months12 months or longer
(In millions)Fair
Value
 Unrealized
Losses
 Fair
Value
 Unrealized
Losses
 Fair
Value
 Unrealized
Losses
(In millions)Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fixed Maturities:             
Fixed maturity securities available
for sale:
Fixed maturity securities available
for sale:
U.S. government and
agencies:
U.S. government and
agencies:
U.S. dollar-denominated U.S. dollar-denominated$159 $$85 $$74 $
Japan government and
agencies:
              Japan government and
agencies:
Yen-denominated $6,404
 $423
 $6,208
 $399
 $196
 $24
  Yen-denominated8,856 1,724 3,733 580 5,123 1,144 
Municipalities:              Municipalities:
U.S. dollar-denominated U.S. dollar-denominated854 89 735 57 119 32 
Yen-denominated Yen-denominated286 61 150 26 136 35 
Mortgage- and asset-
backed securities:
Mortgage- and asset-
backed securities:
U.S. dollar-denominated U.S. dollar-denominated936 84 640 42 296 42 
Yen-denominated 152
 15
 62
 3
 90
 12
  Yen-denominated62 12 38 24 
Public utilities:              Public utilities:
U.S. dollar-denominated 879
 34
 252
 4
 627
 30
  U.S. dollar-denominated1,852 180 1,667 144 185 36 
Yen-denominated 95
 7
 69
 6
 26
 1
  Yen-denominated880 108 576 61 304 47 
Sovereign and supranational:              Sovereign and supranational:
U.S. dollar-denominated U.S. dollar-denominated30 12 30 12 
Yen-denominated 352
 3
 352
 3
 0
 0
 Yen-denominated71 34 37 
Banks/financial institutions:              Banks/financial institutions:
U.S. dollar-denominated 188
 7
 145
 3
 43
 4
  U.S. dollar-denominated1,147 105 786 58 361 47 
Yen-denominated 1,616
 77
 637
 29
 979
 48
  Yen-denominated3,957 531 1,760 174 2,197 357 
Other corporate:              Other corporate:
U.S. dollar-denominated 7,886
 462
 2,803
 52
 5,083
 410
  U.S. dollar-denominated10,529 1,201 8,636 785 1,893 416 
Yen-denominated 424
 25
 386
 24
 38
 1
  Yen-denominated2,090 408 1,507 273 583 135 
Total fixed maturities 17,996
 1,053
 10,914
 523
 7,082
 530
 
Perpetual securities:             
Yen-denominated 340
 32
 0
 0
 340
 32
 
Total perpetual securities 340
 32
  0
 0
 340
 32
 
Equity securities:             
U.S. dollar-denominated 58
 6
 50
 5
 8
 1
 
Yen-denominated 72
 2
 67
 1
 5
 1
 
Total equity securities 130
 8
 117
 6
 13
 2
 
Total $18,466
 $1,093
 $11,031
 $529
 $7,435
 $564
  Total$31,709 $4,528 $20,347 $2,213 $11,362 $2,315 


  
December 31, 2016
  
Total Less than 12 months 12 months or longer
(In millions)Fair
Value
 Unrealized
Losses
 Fair
Value
 Unrealized
Losses
 Fair
Value
 Unrealized
Losses
Fixed Maturities:                       
  Japan government and
agencies:
                       
  Yen-denominated $3,958
   $160
   $3,958
   $160
   $0
   $0
 
  Municipalities:                       
  U.S. dollar-denominated 44
   8
   0
   0
   44
   8
 
  Yen-denominated 105
   8
   105
   8
   0
   0
 
Mortgage- and asset-
backed securities:
                       
  Yen-denominated 713
   8
   713
   8
   0
   0
 
  Public utilities:                       
  U.S. dollar-denominated 1,265
   60
   790
   32
   475
   28
 
  Yen-denominated 635
   26
   347
   14
   288
   12
 
  Sovereign and supranational:                       
  Yen-denominated 244
   13
   38
   5
   206
   8
 
  Banks/financial institutions:                       
  U.S. dollar-denominated 268
   16
   238
   10
   30
   6
 
  Yen-denominated 1,521
   100
   636
   19
   885
   81
 
  Other corporate:                       
  U.S. dollar-denominated 10,462
   690
   7,252
   346
   3,210
   344
 
  Yen-denominated 321
   10
   321
   10
   0
   0
 
  Total fixed maturities 19,536
   1,099
   14,398
   612
   5,138
   487
 
Perpetual securities:                       
  Yen-denominated 479
   49
   85
   1
   394
   48
 
  Total perpetual securities 479
   49
   85
   1
   394
   48
 
Equity securities:                       
U.S. dollar-denominated 211
   6
   211
   6
   0
   0
 
Yen-denominated 49
   2
   49
   2
   0
   0
 
  Total equity securities 260
   8
   260
   8
   0
   0
 
  Total $20,275
   $1,156
   $14,743
   $621
   $5,532
   $535
 


Analysis of Securities in Unrealized Loss Positions


The unrealized losses on the Company's fixed maturity or perpetual securities investments have been primarily related to general market changes in interest rates, foreign exchange rates, and/or the levels of credit spreads rather than specific concerns with the issuer's ability to pay interest and repay principal. TheIn the first quarter of 2023, interest rates for longer durations have declined which is the primary driver of the decrease in unrealized losses. However, compared to the prior year, interest rates have risen significantly which is the primary driver contributing to the increase in unrealized losses on12 months or longer.

For any of its fixed maturity securities with significant declines in fair value, the Company's investments in equity securitiesCompany performs detailed analyses to identify whether the drivers of the declines are primarily relateddue to foreign exchange rates, general market conditions which reflect prospects fordrivers, such as the economy as a whole,recent rise in interest rates, or specific information pertainingdue to an industry or an individual company.

credit-related factors. Identifying the drivers of the declines in fair value helps to align and allocate the Company‘s resources to securities with real credit-related concerns that could impact ultimate collection of principal and interest. For any significant declines in fair value of its fixed incomedetermined to be non-interest rate or perpetual securities,market related, the Company performs a more focused review of the related issuers' specific credit profile.

For corporate issuers, the Company evaluates their assets, business profile including industry dynamics and competitive positioning, financial statements and other available financial data. For non-corporate issuers, the Company analyzes all sources of credit support, including issuer-specific factors. The Company utilizes information available in the public domain and, for certain private placement issuers, from consultations with the issuers directly. The Company also considers ratings from Nationally Recognized Statistical Rating Organizations (NRSROs), as well as the specific
23


characteristics of the security it owns including seniority in the issuer's capital structure,

covenant predictions,protections, or other relevant features. From these reviews, the Company evaluates the issuers' continued ability to service the Company's investment through payment of interest and principal.

For any significant declines in fair value of its equity securities, the Company reviews the severity of the security’s decline in fair value coupled with the length of time the fair value of the security has been below cost. The Company also performs a more focused review of the financial condition and near-term prospects of the issuer as well as general market conditions reflecting the prospects for the economy as a whole, and determines whether it has the intent to hold the securities until they recover in value.


Assuming no credit-related factors develop, unrealized gains and losses on fixed maturities and perpetualmaturity securities are expected to diminish as investments near maturity. Based on its credit analysis, the Company believes that the issuers of its fixed maturity and perpetual security investments in the sectors shown in the table above have the ability to service their obligations to the Company.Company, and the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.


However, from time to time the Company identifies certain available-for-sale fixed maturity securities where the amortized cost basis exceeds the present value of the cash flows expected to be collected due to credit related factors and as a result, a credit allowance will be estimated. Based on an evaluation of its securities currently in an unrealized loss position, the Company has determined that those securities had not incurred a credit loss and therefore, should not have a credit loss allowance as of March 31, 2023. Refer to the Allowance for Credit Losses section below for additional information.

Commercial Mortgage and Other Loans

The Company classifies its transitional real estate loans (TREs), commercial mortgage loans (CMLs) and middle market loans (MMLs) as held-for-investment and includes them in the commercial mortgage and other loans line on the consolidated balance sheets. The Company carries them on the balance sheet at amortized cost less an estimated allowance for credit losses.

The following table reflects the composition of the carrying value for commercial mortgage and other loans by property type as of the periods presented.
(In millions)March 31, 2023December 31, 2022
Amortized Cost% of TotalAmortized Cost% of Total
Commercial Mortgage and other loans:
Transitional real estate loans:
Office$2,142 15.8 %$2,158 15.8 %
Retail465 3.4 493 3.6 
Apartments/Multi-Family2,616 19.3 2,701 19.7 
Industrial416 3.1 123 .9 
Hospitality825 6.1 803 5.9 
Other236 1.7 231 1.7 
Total transitional real estate loans6,700 49.4 6,509 47.6 
Commercial mortgage loans:
Office380 2.8 388 2.8 
Retail308 2.3 310 2.3 
Apartments/Multi-Family610 4.5 630 4.6 
Industrial469 3.5 694 5.1 
Total commercial mortgage loans1,767 13.1 2,022 14.8 
Middle market loans5,084 37.5 5,157 37.6 
Total commercial mortgage and other loans$13,551 100.0 %$13,688 100.0 %
Allowance for credit losses(223)(192)
Total net commercial mortgage and other loans$13,328 $13,496 
CMLs and TREs were secured by properties entirely within the U.S. (with the largest concentrations in California (20%), Texas (12%) and Florida (10%)). MMLs are issued only to companies domiciled within the U.S. and Canada.
24


Transitional Real Estate Loans

TREs are commercial mortgage loans that are typically relatively short-term floating rate instruments secured by a first lien on the property. These loans provide funding for properties undergoing a change in their physical characteristics and/or economic profile and do not typically require any principal repayment prior to the maturity date.

As of March 31, 2023, the Company had $709 million in outstanding commitments to fund TREs. These commitments are contingent on the final underwriting and due diligence to be performed.

Commercial Mortgage Loans

CMLs are typically fixed rate loans on commercial real estate with partial repayment of principal over the life of the loan with the remaining outstanding principal being repaid upon maturity. This loan portfolio is generally considered higher quality investment grade loans.

Middle Market Loans

MMLs are typically first lien senior secured cash flow loans to small to mid-size companies for working capital, refinancing, acquisition, and recapitalization. These loans are generally considered to be below investment grade. The carrying value for MMLs included $21 million and $28 million for a short term credit facility that is reflected in other liabilities on the consolidated balance sheets, as of March 31, 2023, and December 31, 2022, respectively.

As of March 31, 2023, the Company had commitments of approximately $748 million to fund future MMLs. These commitments are contingent upon the availability of MMLs that meet the Company's underwriting criteria.

Credit Quality Indicators

For TREs, the Company’s key credit quality indicator is loan-to-value (LTV). Given that TREs involve properties undergoing a repositioning of their commercial profile, LTV provides the most insight into the credit risk of the loan. The Company monitors the performance of the loans periodically, but not less frequently than quarterly. The monitoring process also focuses on higher risk loans, which include those that are delinquent or for which foreclosure or deed-in-lieu of foreclosure is anticipated.

For CMLs, the Company’s key credit quality indicators include LTV and debt service coverage ratios (DSCR). LTV is calculated by dividing the current outstanding loan balance by the most recent estimated property value. DSCR is the most recently available operating income of the underlying property compared to the required debt service of the loan.

For MMLs and held-to-maturity fixed maturity securities, the Company’s key credit quality indicator is credit ratings. The Company’s held-to-maturity portfolio is composed of investment grade securities that are senior unsecured instruments, while its MMLs generally have below-investment-grade ratings but are typically senior secured instruments. The Company monitors the credit ratings periodically, but not less frequently than quarterly.

For the Company’s reinsurance recoverable balance, the key credit quality indicator is the credit rating of the Company’s reinsurance counterparty. The Company uses external credit ratings focused on the reinsurer’s financial strength and credit worthiness. As of March 31, 2023, the Company's reinsurance counterparties were rated A+. The Company monitors the credit ratings periodically, but not less frequently than quarterly.

25


The following tables present as of March 31, 2023 the amortized cost basis of TREs, CMLs and MMLs by year of origination and credit quality indicator.
Transitional Real Estate Loans
(In millions)20232022202120202019PriorTotal
Loan-to-Value Ratio:
0%-59.99%$77 $692 $588 $36 $153 $10 $1,556 
60%-69.99%42 663 707 135 490 430 2,467 
70%-79.99%882 947 98 365 146 2,438 
80% or greater77 162 239 
Total$119 $2,314 $2,404 $269 $1,008 $586 $6,700 

Commercial Mortgage Loans
(In millions)20232022202120202019PriorTotalWeighted-Average DSCR
Loan-to-Value Ratio:
0%-59.99%$$$299 $46 $507 $599 $1,451 2.52
60%-69.99%15 45 169 229 2.00
70%-79.99%39 24 63 2.21
80% or greater24 24 1.41
Total$$$314 $46 $591 $816 $1,767 2.43
Weighted Average DSCR0.000.002.931.932.452.24

Middle Market Loans
(In millions)20232022202120202019PriorRevolving LoansTotal
Credit Ratings:
BBB$$75 $142 $70 $37 $17 $134 $482 
BB347 444 299 171 128 381 1,771 
B20 230 661 382 464 406 297 2,460 
CCC21 39 111 128 57 356 
CC14 15 
C and lower
Total$28 $652 $1,268 $790 $783 $693 $870 $5,084 

Loan Modifications

The Company granted certain loan modifications in its MML and TRE portfolios during the three-month period ended March 31, 2023. As of March 31, 2023, these loan modifications did not have a material impact on the Company’s results of operations.

Allowance for Credit Losses

The Company calculates its allowance for credit losses for held-to-maturity fixed maturity securities, loan receivables, loan commitments and reinsurance recoverable by grouping assets with similar risk characteristics when there is not a specific expectation of a loss for an individual asset. For held-to-maturity fixed maturity securities, MMLs, and MML commitments, the Company groups assets by credit ratings, industry, and country. The Company groups CMLs and TREs and respective loan commitments by property type, property location and the property’s LTV and DSCR. The credit allowance for the reinsurance recoverable balance is estimated using a probability-of-default (PD) / loss-given-default (LGD) method.

The credit allowance for held-to-maturity fixed maturity securities and loan receivables is estimated using a PD / LGD method, discounted for the time value of money. For held-to-maturity fixed maturity securities, available-for-sale fixed
26


maturity securities and loan receivables, the Company includes the change in present value due to the passage of time in the change in the allowance for credit losses. The Company’s methodology for estimating credit losses utilizes the contractual maturity date of the financial asset, adjusted when necessary to reflect the expected timing of repayment (such as prepayment options, renewal options, call options, or extension options). The Company applies reasonable and supportable forecasts of macroeconomic variables that impact the determination of PD/LGD over a two-year period for held-to-maturity fixed maturity securities and MMLs. The Company reverts to historical loss information over one year, following the two-year forecast period. For the CML and TRE portfolio, the Company applies reasonable and supportable forecasts of macroeconomic variables as well as national and local real-estate market factors to estimate future credit losses where the market factors revert back to historical levels over time with the period being dependent on current market conditions, projected market conditions and difference in the current and historical market levels for each factor. The Company continuously monitors the estimation methodology, due to changes in portfolio composition, changes in underwriting practices and significant events or conditions and makes adjustments as necessary.

The Company’s held-to-maturity fixed maturity portfolio includes Japan Government and Agency securities of $18.0 billion amortized cost as of March 31, 2023 that meet the requirements for zero-credit-loss expectation and therefore these asset classes have been excluded from the current expected credit loss measurement.

An investment in an available-for-sale fixed maturity security may be impaired if the fair value falls below amortized cost. The Company regularly reviews its fixed maturity security investments portfolio for declines in fair value. The Company's debt impairment model focuses on the ultimate collection of the cash flows from its investments and whether the Company has the intent to sell or if it is more likely than not the Company would be required to sell the security prior to recovery of its amortized cost. The determination of the amount of impairments under this model is based upon the Company's periodic evaluation and assessment of known and inherent risks associated with the respective securities. Such evaluations and assessments are revised as conditions change and new information becomes available.

When determining the Company's intention to sell a security prior to recovery of its fair value to amortized cost, the Company evaluates facts and circumstances such as, but not limited to, future cash flow needs, decisions to reposition its security portfolio, and risk profile of individual investment holdings. The Company performs ongoing analyses of its liquidity needs, which includes cash flow testing of its policy liabilities, debt maturities, projected dividend payments, and other cash flow and liquidity needs.

The Company’s methodology for estimating credit losses for available-for-sale fixed maturity securities utilizes the discounted cash flow model, based on past events, current market conditions and future economic conditions, as well as industry analysis and credit ratings of the fixed maturity securities. In addition, the Company evaluates the specific issuer’s probability of default and expected recovery of its position in the event of default based on the underlying financial condition and assets of the borrower as well as seniority and/or security of other debt holders in the issuer when developing management’s best estimate of expected cash flows.

The Company designates nonaccrual status for a nonperforming loan or debt security or a loan that is not generating its stated interest rate because of nonpayment of periodic interest by the borrower. The Company applies the cash basis method to record any payments received on non-accrual assets. The Company resumes the accrual of interest on fixed maturity securities and loans that are currently making contractual payments or for those that are not current where the borrower has paid timely (less than 30 days outstanding).

As of March 31, 2023 and December 31, 2022, the Company had an immaterial amount of loans and fixed maturity securities on nonaccrual status.

27


The following table presents the roll forward of the allowance for credit losses by portfolio segment.
(In millions)Transitional Real Estate LoansCommercial Mortgage LoansMiddle Market LoansHeld to Maturity SecuritiesAvailable for Sale SecuritiesReinsurance Recoverables
Three Months Ended March 31, 2023:
Balance at December 31, 2022$(54)$(9)$(129)$(7)$0 $(8)
(Addition to) release of allowance for credit
   losses
(11)0 (20)1 0 (3)
Write-offs, net of recoveries0 0 0 0 0 0 
Change in foreign exchange0 0 0 0 0 0 
Balance at March 31, 2023$(65)$(9)$(149)$(6)$0 $(11)
Three Months Ended March 31, 2022:
Balance at December 31, 2021$(68)$(10)$(96)$(8)$$(13)
(Addition to) release of allowance for credit
   losses
16 (2)
Change in foreign exchange
Balance at March 31, 2022$(52)$(8)$(98)$(8)$$(9)

During the first quarter of 2023, the Company identified certain TREs collateralized with commercial real estate properties with an amortized cost of $521 million in anticipation of potential foreclosure or deed-in lieu foreclosure transactions. The Company established a credit allowance of $10 million for those amortized loans of $345 million for which the fair value of the collateral was below the amortized cost of the loans.

For assets that are subject to the credit loss measurement, the change in credit loss allowance will be significantly impacted by purchases and sales in those assets during the period as well as entering into new non-cancelable loan commitments. The estimate of credit losses for loan commitments as of March 31, 2023 was $21 million.

Other Investments


The table below reflects the composition of the carrying value for other investments as of the periods presented.
(In millions)March 31,
2023
December 31, 2022
Other investments:
Policy loans$214 $214 
Short-term investments (1)
2,561 1,532 
Limited partnerships2,432 2,290 
Other34 34 
Total other investments$5,241 $4,070 
(In millions)September 30, 2017 
December 31,
2016
Other investments:       
Commercial mortgage loans $1,199
   $855
 
Middle market loans 798
   319
 
Policy loans 207
   184
 
Short-term investments 57
   89
 
Other 97
   3
 
Total other investments $2,358
   $1,450
 
(1) Includes securities lending collateral

Loans and Loan Receivables


The Parent Company classifies its commercial mortgage loans (CMLs)invests in partnerships that specialize in rehabilitating historic structures or the installation of solar equipment in order to receive federal historic rehabilitation and middle market loans (MMLs)solar tax credits. These investments are classified as held-for-investmentlimited partnerships and includes themincluded in the other investments line onin the consolidated balance sheets.sheet. The Company carries them onchange in value of each investment is recorded as a reduction to net investment income. Tax credits generated by these investments are recorded as an income tax benefit in the balance sheet at amortized cost less an estimated allowance for loan losses. The Company's allowance for loan losses is established using both general and specific allowances. The general allowance is used for loans grouped by similar risk characteristics where a loan-specific or market-specific risk has not been identified, but for which the Company estimates probable incurred losses. The specific allowance is used on an individual loan basis when it is probable that a loss has been incurred. consolidated statement of earnings.

As of September 30, 2017, and DecemberMarch 31, 2016, the Company's allowance for loan losses was $8 million and $3 million, respectively. As of September 30, 2017, and December 31, 2016,2023, the Company had no loans that were past due in regards to principal and/or interest payments. Additionally, the Company held no loans that were on nonaccrual status or considered impaired as of September 30, 2017, and December 31, 2016. The Company had no troubled debt restructurings during the nine months ended September 30, 2017 and 2016.

Commercial Mortgage Loans

Commercial mortgage loans include transitional real estate (TRE) loans. As of September 30, 2017, the Company had $103 million in outstanding commitments to fund commercial mortgage loans, inclusive of loans held in unit trust structures. These commitments are contingent on the final underwriting and due diligence to be performed.

Middle Market Loans

Middle market loans are generally considered to be below investment grade. The carrying value for middle market loans included an unfunded amount of $133 million and $91 million, as of September 30, 2017, and December 31, 2016, respectively, that is reflected in other liabilities on the consolidated balance sheets.

As of September 30, 2017, the Company had commitments of approximately $530 million to fund potential future loan originations related to this investment program, inclusive of loans held in unit trust structures. These commitments are contingent upon the availability of middle market loans that meet the Company's underwriting criteria.

Other

Other investments primarily includes investments in limited partnerships. As of September 30, 2017, the Company had $365 million$2.0 billion in outstanding commitments to fund alternative investments in limited partnerships.


Variable Interest Entities (VIEs)


As a condition of its involvement or investment in a VIE, the Company enters into certain protective rights and covenants that preclude changes in the structure of the VIE that would alter the creditworthiness of the Company's investment or its beneficial interest in the VIE.


28


For those VIEs other than certain unit trust structures, the Company's involvement is passive in nature. The Company hasis not, nor has it been, required to purchase any securities issued in the future by these VIEs.


The Company's ownership interest in VIEs is limited to holding the obligations issued by them. The Company has no direct or contingent obligations to fund the limited activities of these VIEs, nor does it have any direct or indirect financial guarantees related to the limited activities of these VIEs. The Company has not provided any assistance or any other type of financing support to any of the VIEs it invests in, nor does it have any intention to do so in the future. For those VIEs in which the Company holds debt obligations, the weighted-average lives of the Company's notes are very similar to the underlying collateral held by these VIEs where applicable.

The Company also utilizes unit trust structures in its Aflac Japan segment to invest in various asset classes. As the sole investor of these VIEs, the Company is required to consolidate these entities under U.S. GAAP.


The Company's risk of loss related to its interests in any of its VIEs is limited to the carrying value of the related investments held in the VIE.


VIEs - Consolidated


The following table presents the cost or amortized cost, fair value and balance sheet caption in which the assets and liabilities of consolidated VIEs are reported.

Investments in Consolidated Variable Interest Entities
 September 30, 2017 December 31, 2016
(In millions)Cost or Amortized
Cost
 Fair
Value
 Cost or Amortized
Cost
 Fair
Value
Assets:               
Fixed maturities, available for sale $4,274
   $5,224
   $4,168
   $4,982
 
Perpetual securities, available for sale 239
   211
   237
   208
 
Equity securities 595
   690
   972
   1,044
 
Other investments (1)
 1,500
   1,491
   819
   789
 
Other assets (2)
 148
   148
   127
   127
 
Total assets of consolidated VIEs $6,756
   $7,764
   $6,323
   $7,150
 
Liabilities:               
Other liabilities (2)
 $132
   $132
   $146
   $146
 
Total liabilities of consolidated VIEs $132
   $132
   $146
   $146
 
March 31, 2023December 31, 2022
(In millions)
Amortized
Cost
(1)
Fair
Value
Amortized
Cost (1)
Fair
Value
Assets:
Fixed maturity securities, available for sale$3,222 $3,925 $3,223 $3,805 
Commercial mortgage and other loans10,684 10,688 10,832 10,762 
Other investments (2)
2,049 2,049 1,909 1,909 
Other assets (3)
63 63 62 62 
Total assets of consolidated VIEs$16,018 $16,725 $16,026 $16,538 
Liabilities:
Other liabilities (3)
$399 $399 $390 $390 
Total liabilities of consolidated VIEs$399 $399 $390 $390 
(1)Net of allowance for credit losses
(2) Consists entirely of CMLs, MMLs, and alternative investments in limited partnerships
(2)(3) Consists entirely of derivatives


The Company is substantively the only investor in the consolidated VIEs listed in the table above. As the sole investor in these VIEs, the Company has the power to direct the activities of a variable interest entity that most significantly impact the entity's economic performance and is therefore considered to be the primary beneficiary of the VIEs that it consolidates. The Company also participates in substantially all of the variability created by these VIEs. The activities of these VIEs are limited to holding invested assets and foreign currency and/or credit default swaps, (CDS), as appropriate,

and utilizing the cash flows from these securities to service its investment. Neither the Company nor any of its creditors are able to obtain the underlying collateral of the VIEs unless there is an event of default or other specified event. For those VIEs that contain a swap, the Company is not a direct counterparty to the swap contracts and has no control over them. The Company's loss exposure to these VIEs is limited to its original investment. The Company's consolidated VIEs do not rely on outside or ongoing sources of funding to support their activities beyond the underlying collateral and swap contracts, if applicable. With the exception of its investment in unit trust structures, the underlying collateral assets and funding of the Company's consolidated VIEs are generally static in nature and the underlying collateral and the reference corporate entities covered by any CDS contracts were all investment grade at the time of issuance.nature.


Investments in Unit Trust Structures


The Company invests throughalso utilizes unit trust structures in yen-denominated public equity securities, U.S. dollar-denominated public equity securities, bank loans, commercial mortgage loans, infrastructure debt, middle market loans, and alternative investmentsits Aflac Japan segment to invest in limited partnerships. Thevarious asset classes. As the sole investor of these VIEs, the Company is the only investor in these trusts and meets the requirementsrequired to consolidate these trusts under U.S. GAAP. The yen-denominated and U.S. dollar-denominated equity securities, bank loans and certain infrastructure debt are classified as available for sale in the financial statements. The commercial mortgage loans, middle market loans and certain infrastructure debt that meets the criteria to be classified as a loan are classified as loans held for investment and reflected in other investments on the consolidated balance sheets at amortized cost. Limited partnership investments are recognized as equity method investments.


VIEs-Not
29


VIEs - Not Consolidated
The table below reflects the amortized cost, fair value and balance sheet caption in which the Company's investment in VIEs not consolidated are reported.
Investments in Variable Interest Entities Not Consolidated
  
March 31, 2023December 31, 2022
(In millions)Amortized
Cost
Fair
Value
Amortized
Cost
Fair
Value
Assets:
Fixed maturity securities, available for sale$3,890 $4,274 $3,998 $4,259 
Other investments (1)
383 383 381 381 
Total investments in VIEs not consolidated$4,273 $4,657 $4,379 $4,640 
  
September 30, 2017 December 31, 2016
(In millions)Amortized
Cost
 Fair
Value
 Amortized
Cost
 Fair
Value
Assets:               
Fixed maturities, available for sale $4,766
   $5,439
   $4,729
   $5,261
 
Perpetual securities, available for sale 177
   220
   172
   200
 
Fixed maturities, held to maturity 2,645
   3,047
   2,563
   2,948
 
Other investments 50
   50
   1
   1
 
Total investments in VIEs not consolidated $7,638
   $8,756
   $7,465
   $8,410
 

The Company holds(1) Consists entirely of alternative investments in limited partnerships that have been determined to be VIEs. These partnerships invest in private equity and structured investments. The Company’s maximum exposure to loss on these investments is limited to the amount of its investment. The Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them. The Company classifies these investments as Other investments in the consolidated balance sheets.


Certain investments in VIEs that the Company is not required to consolidate are investments that are in the form of debt obligations from the VIEs that are irrevocably and unconditionally guaranteed by their corporate parents or sponsors. These VIEs are the primary financing vehicles used by their corporate sponsors to raise financing in the capital markets. The variable interests created by these VIEs are principally or solely a result of the debt instruments issued by them. The Company does not have the power to direct the activities that most significantly impact the entity's economic performance, nor does it have the obligation to absorb losses of the entity or the right to receive benefits from the entity. As such, the Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them.


The Company holds alternative investments in limited partnerships that have been determined to be VIEs. These partnerships invest in private equity and structured investments. The Company’s maximum exposure to loss on these investments is limited to the amount of its investment. The Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them. The Company classifies these investments as Other investments in the consolidated balance sheets.

Securities Lending and Pledged Securities


The Company lends fixed-maturityfixed maturity and public equity securities to financial institutions in short-term security-lending transactions. These short-term security-lending arrangements increase investment income with minimal risk. The Company receives cash or other securities as collateral for such loans. The Company's security lending policy requires that the fair value of the securities and/or unrestricted cash received as collateral be 102% or more of the fair value of the loaned securities and that unrestricted cash received as collateral be 100% or more of the fair value of the loaned securities. TheseThe securities loaned continue to be carried as investment

assets on the Company's balance sheet during the terms of the loans and are not reported as sales. The Company receives cash or other securities as collateral for such loans. For loans involving unrestricted cash or securities as collateral, the collateral is reported as an asset with a corresponding liability for the return of the collateral. For loans where the Company receives as collateral securities that the Company is not permitted to sell or repledge, the collateral is not reflected on the consolidated financial statements.


30


Details of collateral by loaned security type and remaining maturity of the Company's securities lending activitiesagreements were as follows:
Securities Lending Transactions Accounted for as Secured Borrowings
Remaining Contractual Maturity of the Agreements
March 31, 2023December 31, 2022
(In millions)
Overnight
and
Continuous
(1)
Up to 30
days
Total
Overnight
and
Continuous
(1)
Up to 30
days
Total
Securities lending transactions:
Fixed maturity securities:
Japan government and
  agencies
$0 $2,912 $2,912 $$1,087 $1,087 
Public utilities4 0 4 12 12 
Banks/financial institutions60 0 60 89 89 
Other corporate484 0 484 621 621 
          Total borrowings$548 $2,912 $3,460 $722 $1,087 $1,809 
Gross amount of recognized liabilities for securities
   lending transactions
$3,460 $1,809 
Securities Lending Transactions Accounted for as Secured Borrowings
September 30, 2017
Remaining Contractual Maturity of the Agreements
(In millions)
Overnight
and
Continuous
(1)
 Up to 30
days
  Total
Securities lending transactions:      
Public utilities$37
 $0
  $37
Banks/financial institutions37
 0
  37
Other corporate434
 0
  434
    Equity securities14
 0
  14
          Total borrowings$522
 $0
  $522
Gross amount of recognized liabilities for securities lending transactions $522
Amounts related to agreements not included in offsetting disclosure in Note 4 $0
(1) These securities are pledged as collateralThe related loaned security, under the Company's U.S. securities lending program, and can be calledreturned to the Company at itsthe transferee's discretion; therefore, they are classified as Overnight and Continuous.

Securities Lending Transactions Accounted for as Secured Borrowings
December 31, 2016
Remaining Contractual Maturity of the Agreements
(In millions)
Overnight
and
Continuous
(1)
 Up to 30
days
  Total
Securities lending transactions:      
Public utilities$62
 $0
  $62
Banks/financial institutions34
 0
  34
Other corporate430
 0
  430
          Total borrowings$526
 $0
  $526
Gross amount of recognized liabilities for securities lending transactions $526
Amounts related to agreements not included in offsetting disclosure in Note 4 $0
(1) These securities are pledged as collateral under the Company's U.S.In connection with securities lending, programin addition to cash collateral received, the Company received from counterparties securities collateral of $5.9 billion and can$6.8 billion at March 31, 2023 and December 31, 2022, respectively, which may not be called at its discretion; therefore, they are classified as Overnight and Continuous.sold or re-pledged, unless the counterparty is in default. Such securities collateral is not reflected on the consolidated financial statements.

The Company did not have any repurchase agreements or repurchase-to-maturity transactions outstanding as of September 30, 2017,March 31, 2023, and December 31, 2016,2022, respectively.


Certain fixed-maturityfixed maturity securities can be pledged as collateral as part of derivative transactions, or pledged to support state deposit requirements oron certain investment programs. For additional information regarding pledged securities related to derivative transactions, see Note 4.



4.DERIVATIVE INSTRUMENTS

4.    DERIVATIVE INSTRUMENTS

The Company's freestanding derivative financial instruments have historically consisted of: (1)

foreign currency forwards and options used in hedging foreign exchange risk on U.S. dollar-denominated investments in Aflac Japan's portfolio; (2) portfolio, with options used on a standalone basis and/or in a collar strategy;

foreign currency forwards and options used to hedge foreign exchange risk from the Company's net investment in Aflac Japan and economically hedge certain portions of forecasted cash flows denominated in yen; (3) swaps associated withyen and hedge the Company's notes payable, consisting of long term exposure to a weakening yen;

cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and its subordinated debentures; (4)

foreign currency swaps and credit default swaps that are associated with variable interest entity (VIE) bond purchase commitments, and investments in special-purpose entities, including VIEs where the Company is the primary beneficiary; and (5) options on

interest rate swaps (orused to economically hedge interest rate swaptions) and futuresfluctuations in certain variable-rate investments;

interest rate swaptions used to hedge changes in the fair value associated with interest rate riskfluctuations for certain U.S. dollar-denominated available-for-sale securities. The Company does not use derivative financial instruments for trading purposes, nor does it engagefixed-maturity securities; and

bond purchase commitments at the inception of investments in leveraged derivative transactions. consolidated VIEs.

Some of the Company's derivatives are designated as cash flow hedges, fair value hedges or net investment hedges; however, other derivatives do not qualify for hedge accounting or the Company elects not to designate them as an accounting hedge. The Company utilizes a net investment hedge to mitigate foreign exchange exposure resulting from its net investment in Aflac Japan. In addition to designating derivatives as hedging instruments, the Company has designated the majority of the Parent Company's yen-denominated liabilities (notes payable and loans) as nonderivative hedging instruments for this net investment hedge.hedges.


31


Derivative Types


Foreign currency forwards and options are executed for the Aflac Japan segment in order to hedge the currency risk on the carrying value of certain U.S. dollar-denominated investments. The average maturity of these forwards and options can change depending on factors such as market conditions and types of investments being held. In situations where the maturity of the forwards and options areis shorter than the underlying investment being hedged, the Company may enter into new forwards and options near maturity of the existing derivative in order to continue hedging the underlying investment. In forward transactions, Aflac Japan agrees with another party to buy a fixed amount of yen and sell a corresponding amount of U.S. dollars at a specified future date. The Company also uses one-sided foreign currency put options to mitigate the settlement risk on U.S. dollar-denominated assets related to extreme foreign currency rate changes. From time to time, Aflac Japan also executes foreign currency option transactions in a collar strategy, where Aflac Japan agrees with another party to simultaneously purchase put options and sell call options. In the purchased put transactions, Aflac Japan obtains the option to buy a fixed amount of U.S. dollar put optionsyen and sell a corresponding amount of U.S. dollardollars at a specified future date. In the sold call options.transactions, Aflac Japan agrees to sell a fixed amount of yen and buy a corresponding amount of U.S. dollars at a specified future date. The combination of these two actionspurchasing the put option and selling the call option results in no net premium being paid (i.e. a costless or zero-cost collar). The

From time to time, the Company may also enter into foreign currency forwards and options are used in fair value hedging relationships to mitigate the foreign exchange risk associated with U.S. dollar-denominated investments supporting yen-denominated liabilities.

Foreign currency forwards and options are also used to hedge the currency risk associated with the net investment in Aflac Japan. In these forward transactions, Aflacthe Company agrees with another party to buy a fixed amount of U.S. dollars and sell a corresponding amount of yen at a specified price at a specified future date. In the option transactions, the Company usesmay use a combination of foreign currency options to protect expected future cash flows by simultaneously purchasing yen put options (options that protect against a weakening yen) and selling yen call options (options that limit participation in a strengthening yen). The combination of these two actions resultscreate a zero-cost collar. Additionally, the Company enters into purchased options to hedge cash flows from the net investment in no net premium being paid (i.e. a costless or zero-cost collar).Aflac Japan.


The Company enters into foreign currency swaps pursuant to which it exchanges an initial principal amount in one currency for an initial principal amount of another currency, with an agreement to re-exchange the currenciesprincipal amounts at a future date at an agreed upon exchange rate.date. There may also be periodic exchanges of payments at specified intervals based on the agreed upon rates and notional amounts. Foreign currency swaps are used primarily in the consolidated VIEs in the Company's Aflac Japan portfolio to convert foreign-denominated cash flows to yen, the functional currency of Aflac Japan, in order to minimize cash flow fluctuations. The Company also uses foreign currency swaps to economically convert certain of its U.S. dollar-denominated senior note and subordinated debenture principal and interest obligations into yen-denominated obligations.


The only CDS thatIn order to reduce investment income volatility from its variable-rate investments, the Company currently holds relates to components of an investment in a VIE and is used to assume credit risk related to an individual security. This CDS contract entitles the consolidated VIE to receive periodic fees in exchange for an obligation to compensate the derivative counterparties should the referenced security issuer experience a credit event, as defined in the contract.

Interestenters into receive–fixed, pay–floating interest rate swaps involve the periodic exchange of cash flows with other parties, at specified intervals, calculated using agreed upon rates or other financial variables and notional principal amounts. Typically, at the time a swap is entered into, the cash flow streams exchanged by the counterparties are equal in value. No cash or principal payments are exchanged at the inception of the contract. Interest rate swaps are primarily used to convert interest receipts on

floating-rate fixed-maturity securities contracts to fixed rates.swaps. These derivatives are predominantlycleared and settled through a central clearinghouse.

Swaptions are used to better match cash receiptsmitigate the adverse impact resulting from assets with cash disbursements requiredsignificant changes in the fair value of U.S. dollar-denominated available-for-sale securities due to fund liabilities.

fluctuation in interest rates. In a payer swaption, the Company pays a premium to obtain the right, but not the obligation, to enter into a swap contract where it will pay a fixed rate and receive a floating rate. Interest rate swaptions are options on interest rate swaps. Interest rateswaption collars are combinations of two swaption positions and are executed in order to hedge certain U.S. dollar-denominated available-for-sale securities that are held in the Aflac Japan segment. The Company uses collars to protect against significant changes in the fair value associated with its U.S. dollar-denominated available-for-sale securities due to interest rates.positions. In order to maximize the efficiency of the collars while minimizing cost, a collar strategy is used whereby the Company sets the strike price on each collar sopurchases a long payer swaption (the Company purchases an option that the premium paid for the ‘payer leg’ is offset by the premium received for having sold the ‘receiver leg.'

Periodically,allows it to enter into a swap where the Company maywill pay the fixed rate and receive the floating rate of the swap) and sells a short receiver swaption (the Company sells an option that provides the counterparty with the right to enter into othera swap where the Company will receive the fixed rate and pay the floating rate of the swap). The combination of purchasing the long payer swaption and selling the short receiver swaption results in no net premium being paid (i.e. a costless or zero-cost collar).

Bond purchase commitments result from repackaged bond structures that are consolidated VIEs whereby there is a delay in the trade date and settlement date of the bond within the structure to ensure completion of all necessary legal agreements to support the consolidated VIE that issues the repackaged bond. Since the Company has a commitment to purchase the underlying bond at a specified price, the agreement meets the definition of a derivative transactions dependingwhere the value is derived based on general economic conditions.the current market value of the bond compared to the fixed purchase price to be paid on the settlement date.


32


Derivative Balance Sheet Classification

The tablestable below summarizesummarizes the balance sheet classification of the Company's derivative fair value amounts, as well as the gross asset and liability fair value amounts. The fair value amounts presented do not include income accruals. Derivative assets are included in “Other Assets,” while derivative liabilities are included in “Other Liabilities” within the Company’s Consolidated Balance Sheets. The notional amount of derivative contracts represents the basis upon which pay or receive amounts are calculated and are not reflective of exposure or credit risk.
  March 31, 2023December 31, 2022
(In millions)Asset
Derivatives
Liability
Derivatives
Asset
Derivatives
Liability
Derivatives
Hedge Designation/ Derivative
  Type
Notional
Amount
Fair ValueFair ValueNotional
Amount
Fair ValueFair Value
Cash flow hedges:
Foreign currency swaps - VIE$18 $0 $3 $18 $$
Total cash flow hedges18 0 3 18 
Fair value hedges:
Foreign currency options7,743 20 0 7,940 45 
Total fair value hedges7,743 20 0 7,940 45 
Net investment hedge:
Foreign currency forwards4,956 359 43 4,982 383 85 
Foreign currency options2,235 3 0 2,630 
Total net investment hedge7,191 362 43 7,612 390 85 
Non-qualifying strategies:
Foreign currency swaps1,900 55 0 1,900 66 
Foreign currency swaps - VIE3,466 63 396 3,420 62 387 
Foreign currency forwards3,701 0 133 5,049 17 640 
Foreign currency options5,717 23 0 5,521 30 
Interest rate swaps17,730 26 483 17,730 583 
Total non-qualifying strategies32,514 167 1,012 33,620 182 1,610 
Total derivatives$47,466 $549 $1,058 $49,190 $617 $1,698 
  
 September 30, 2017  December 31, 2016  
(In millions)  Asset
Derivatives
 Liability
Derivatives
  Asset
Derivatives
 Liability
Derivatives
 
Hedge Designation/ Derivative
Type
Notional
Amount
 Fair Value Fair ValueNotional
Amount
 Fair Value Fair Value 
Cash flow hedges:                       
Foreign currency swaps $75
   $0
   $(9)  $75
   $0
   $(10)  
Total cash flow hedges 75
   0
   (9)  75
   0
   (10)  
Fair value hedges:                       
Foreign currency forwards 9,278
   0
   (411)  10,965
   0
   (759)  
Foreign currency options 5,660
   0
   (20)  4,224
   2
   (32)  
Total fair value hedges 14,938
   0
   (431)  15,189
   2
   (791)  
Net investment hedge:                       
Foreign currency forwards 48
   1
   0
  209
   5
   (2)  
Foreign currency options 564
   17
   (4)  843
   41
   (17)  
Total net investment hedge 612
   18
   (4)  1,052
   46
   (19)  
Non-qualifying strategies:                       
Foreign currency swaps 5,387
   301
   (187)  6,266
   490
   (220)  
Foreign currency forwards 7,124
   159
   (343)  21,218
   667
   (956)  
Foreign currency options 25
   0
   0
  41
   0
   (2)  
Credit default swaps 89
   1
   0
  86
   2
   0
  
Total non-qualifying strategies 12,625
   461
   (530)  27,611
   1,159
   (1,178)  
Total derivatives $28,250
   $479
   $(974)  $43,927
   $1,207
   $(1,998)  
Balance Sheet Location                       
Other assets $9,509
   $479
   $0
  $18,329
   $1,207
   $0
  
Other liabilities 18,741
   0
   (974)  25,598
   0
   (1,998)  
Total derivatives $28,250
   $479
   $(974)  $43,927
   $1,207
   $(1,998)  


Cash Flow Hedges
Certain of the Company's
For certain variable-rate U.S. dollar-denominated available-for-sale securities held by Aflac Japan via consolidated VIEs, have foreign currency swaps that qualify for hedge accounting treatment. For those that have qualified,are used to swap the U.S. Dollar (USD) variable rate interest and principal payments to fixed rate Japanese Yen (JPY) interest and principal payments. The Company has designated the derivativeforeign currency swaps as a hedge of the variability in cash flows of a forecasted transaction or of amounts to be received or paid related to a recognized asset (“cash flow” hedge). The remaining maximum length of time for which these cash flows are hedged is nineapproximately four years. The remaining derivatives in the Company's consolidated VIEs that haveare not qualified for hedgedesignated as accounting hedges are includeddiscussed in “non-qualifying strategies.”the "non-qualifying strategies" section of this note.


Fair Value Hedges

The Company designates and accounts for certain foreign currency forwards, options, and optionsinterest rate swaptions as fair value hedges when they meet the requirements for hedge accounting. These foreignThe Company recognizes gains and losses on these derivatives as well as the offsetting gain or loss on the related hedged items in current earnings.

Foreign currency forwards and options hedge the foreign currency exposure of certain U.S. dollar-denominated investments. The Company recognizes gains and losses on these derivatives and the related hedged itemsavailable-for-sale fixed-maturity investments held in current earnings within derivative and other gains (losses).Aflac Japan. The change in the fair value of the foreign currency forwards related to the changes in the difference between the spot rate and the forward price is excluded from the assessment of hedge effectiveness. The change in fair value of the foreign currency option related to the time value of the option is recognized in current earnings and is excluded from the assessment of hedge effectiveness.
The Company designates and accounts for interest rate swaptions as fair value hedges when they meet the requirements for hedge accounting. These interest
Interest rate swaptions hedge the interest rate exposure of certain U.S. dollar-denominated fixed maturityavailable-for-sale securities withinheld in Aflac Japan. For these hedging relationships, the investment portfolioCompany excludes time value from the assessment of hedge effectiveness and recognizes changes in the intrinsic value of the Company's Aflac Japan segment. The Company recognizes gains and losses on these derivatives and the related hedged itemsswaptions in current earnings within derivative and other gains (losses).net investment income. The change in the fair value of the interest rate swaptions related to the time value of the optionswaptions is excluded from the assessment of hedge effectiveness.recognized in other comprehensive income (loss) and amortized into earnings (net investment income) over its legal term.
33



The following table presents the gains and losses on derivatives and the related hedged items in fair value hedges.


Fair Value Hedging Relationships
(In millions)Hedging DerivativesHedged Items
Hedging DerivativesHedged ItemsTotal
Gains
(Losses)
Gains (Losses)
Excluded from Effectiveness Testing
(1)
Gains (Losses)
Included in Effectiveness Testing
(2)
 Gains (Losses)(2)
Net Investment Gains (Losses) Recognized for Fair Value Hedge
Three Months Ended March 31, 2023:
Foreign currency optionsFixed maturity securities$(39)$(39)$0 $0 $0 
Total gains (losses)$(39)$(39)$0 $0 $0 
Three Months Ended March 31, 2022:
Foreign currency optionsFixed maturity securities(15)(15)
Total gains (losses)$(15)$(15)$$$
(In millions)  Hedging Derivatives Hedged Items  
Hedging DerivativesHedged Items Total
Gains (Losses)
 Gains (Losses)
Excluded from Effectiveness Testing
 Gains (Losses)
Included in Effectiveness Testing
  Gains (Losses) Ineffectiveness
Recognized for Fair Value Hedge
Three Months Ended September 30, 2017:       
Foreign currency
forwards
Fixed-maturity and equity securities $(114) $(53) $(61) $61
 $0
Foreign currency
options
Fixed-maturity securities (14) (14) 0
 0
 0
Nine Months Ended September 30, 2017:          
Foreign currency forwardsFixed-maturity and equity securities $193
 $(151) $344
 $(326) $18
Foreign currency optionsFixed-maturity securities 3
 (8) 11
 (10) 1
Three Months Ended September 30, 2016:          
Foreign currency
forwards
Fixed-maturity and equity securities $90
 $(186) $276
 $(288) $(12)
Foreign currency optionsFixed-maturity securities (4) (4) 0
 0
 0
Nine Months Ended September 30, 2016:          
Foreign currency forwardsFixed-maturity and equity securities $2,103
 $(278) $2,381
 $(2,406) $(25)
Foreign currency optionsFixed-maturity securities 2
 2
 0
 0
 0
(1) Gains (losses) excluded from effectiveness testing includes the forward point on foreign currency forwards and time value change on foreign currency options which are reported in the consolidated statement of earnings as net investment gains (losses). It also includes the change in the fair value of the interest rate swaptions related to the time value of the swaptions which is recognized as a component of other comprehensive income (loss).

(2) Gains and losses on foreign currency forwards and options and related hedged items are reported in the consolidated statement of earnings as net investment gains (losses). For interest rate swaptions and related hedged items, gains and losses included in the hedge assessment, premium amortization and time value amortization while the hedge items are still outstanding are reported within net investment income. The time value gains and losses for interest rate swaptions when the related hedged items are redeemed are reported in net investment gains and losses consistent with the impact of the hedged item. For the three-month periods ended March 31, 2023 and 2022, gains and losses included in the hedge assessment on interest rate swaptions and related hedged items were immaterial.

The following table shows the carrying amounts of assets designated and qualifying as hedged items in fair value hedges of interest rate risk and the related cumulative hedge adjustment included in the carrying amount.
(In millions)
Carrying Amount of the Hedged Assets/(Liabilities)(1)
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/(Liabilities)
March 31,
2023
December 31, 2022March 31,
2023
December 31, 2022
Fixed maturity securities$2,068 $2,360 $186 $189 
(1) The balance includes hedging adjustment on discontinued hedging relationships of $186 in 2023 and $189 in 2022.

Net Investment Hedge


The Company's investment in Aflac Japan is affected by changes in the yen/dollar exchange rate. To mitigate this exposure, the Parent Company's yen-denominated liabilities (see Note 8)9) have been designated as non-derivative hedges and certain foreign currency forwards and options have been designated as derivative hedges of the foreign currency exposure of the Company's net investment in Aflac Japan.


The Company used foreign exchange forwards and options to hedge foreign exchange risk on 21.9 billion yen and 45.0 billion yen of profit repatriation received from Aflac Japan in September 2017 and July 2017, respectively. As of September 30, 2017, the Company had foreign exchange forwards and options as part of a hedge on 68.9 billion yen of future profit repatriation.


The Company's net investment hedge was effective during the three- and nine-monththree-month periods ended September 30, 2017March 31, 2023 and 2016,2022, respectively.
34


Non-qualifying Strategies

For the Company's derivative instruments in consolidated VIEs that do not qualify for hedge accounting treatment, all changes in their fair value are reported in current period earnings within derivative and othernet investment gains (losses). The amount of gain or loss recognized in earnings for the Company's VIEs is attributable to the derivatives in those investment structures. While the change in value of the swaps is recorded through current period earnings, the change in value of the available-for-sale fixed-maturity or perpetualfixed maturity securities associated with these swaps is recorded through other comprehensive income.
The
As of March 31, 2023, the Parent Company hashad $1.9 billion notional amount of cross-currency interest rate swap agreements related to certain of its $550 millionU.S. dollar-denominated senior notes due March 2020, $350 million seniorto effectively convert a portion of the interest on the notes due February 2022, $700 million senior notes due June 2023, $750 million senior notes due November 2024, $450 million senior notes due March 2025, and $500 million subordinated debentures due September 2052.from U.S dollar to Japanese yen. Changes in the values of these swaps are recorded through current period earnings. For additional information regarding these swaps, see Note 8 in this report and Note 9 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.
In 2016, the
The Company began usinguses foreign exchange forwards and options to economically mitigate the currency risk of some of its U.S. dollar-denominated loan receivables held within the Aflac Japan segment. As of September 30, 2017, the outstanding derivative notional amounts associated with these U.S. dollar-denominated loan receivables were approximately $1.6 billion. The Company hasThese arrangements are not elected to apply hedgedesignated as accounting for these loan receivables due to the change in fair value of the foreign exchange forwards andhedges, as the foreign currency remeasurement of the loan receivables being recorded throughimpacts current period earnings, and generally offsetting each othersubstantially offsets gains and losses from foreign exchange forwards within realizednet investment gains (losses). The Company also has certain foreign exchange forwards on U.S. dollar-denominated available-for-sale securities where hedge accounting is not being applied.


The Company uses interest rate swaps to economically convert the variable rate investment income to a fixed rate on certain variable-rate investments.
35


Impact of Derivatives and Hedging Instruments


The following table summarizes the impact to realized investment gains (losses)earnings and other comprehensive income (loss) from all derivatives and hedging instruments.


   Three Months Ended September 30,Nine Months Ended September 30,
 2017201620172016
(In millions)Realized Investment
Gains (Losses)
Other
Comprehensive
Income (Loss)
(1)
Realized Investment
Gains (Losses)
Other
Comprehensive
Income (Loss)
(1)
Realized Investment
Gains (Losses)
Other
Comprehensive
Income (Loss)
(1)
Realized Investment
Gains (Losses)
Other
Comprehensive
Income (Loss)
(1)
Qualifying hedges:                        
  Cash flow
    hedges:
                        
       Foreign
          currency
          swaps
 $0
  $(1)  $0
  $0
  $0
  $0
  $1
  $11
 
  Total cash flow
    hedges
 0
  (1)  0
  0
  0
  0
  1
  11
 
  Fair value
    hedges:
                        
       Foreign
          currency
          forwards(2)
 (53)  0
  (198)  0
  (133)  0
  (303)  0
 
       Foreign
          currency
          options(2)
 (14)  0
  (4)  0
  (7)  0
  2
  0
 
  Total fair value
    hedges
 (67)  0
  (202)  0
  (140)  0
  (301)  0
 
  Net investment
    hedge:
                        
       Non-
          derivative
          hedging
          instruments
 0
  5
  0
  (2)  0
  (13)  0
  (39) 
       Foreign
          currency
          forwards
 0
  4
  0
  (28)  0
  (24)  0
  (161) 
       Foreign
          currency
          options
 0
  (5)  0
  31
  0
  3
  0
  0
 
  Total net
    investment
    hedge
 0
  4
  0
  1
  0
  (34)  0
  (200) 
  Non-qualifying
    strategies:
                        
       Foreign
          currency
          swaps
 17
  0
  (51)  0
  43
  0
  (145)  0
 
       Foreign
          currency
          forwards
 10
  0
  144
  0
  (46)  0
  165
  0
 
       Credit
          default
          swaps
 0
  0
  2
  0
  0
  0
  2
  0
 
  Total non-
    qualifying
    strategies
 27
  0
  95
  0
  (3)  0
  22
  0
 
          Total $(40)  $3
  $(107)  $1
  $(143)  $(34)  $(278)  $(189) 
Three Months Ended March 31,
20232022
(In millions)
Net Investment Income(1)
Net Investment
Gains (Losses)
Other
Comprehensive
Income (Loss)
(2)
Net Investment Income(1)
Net Investment
Gains (Losses)
Other
Comprehensive
Income (Loss)
(2)
Qualifying hedges:
  Cash flow hedges:
       Foreign currency swaps - VIE$0 $(1)$1 $$(1)$
  Total cash flow hedges0 (1)(3)1 (1)(3)
  Fair value hedges:
       Foreign currency options(3)
(39)(15)
  Total fair value hedges0 (39)0 (15)
  Net investment hedge:
       Non-derivative hedging
         instruments
0 25 199 
       Foreign currency forwards90 29 (76)301 
       Foreign currency options(3)0 (1)
  Total net investment hedge87 54 (77)500 
  Non-qualifying strategies:
       Foreign currency swaps1 28 
       Foreign currency swaps - VIE(27)23 
       Foreign currency forwards(51)(241)
       Foreign currency options(19)(10)
       Interest rate swaps69 (156)
       Forward bond purchase
         commitment - VIE
(3)(17)
  Total non-qualifying strategies(30)(373)
          Total$0 $17 $55 $$(466)$501 
(1)Cash Interest expense/income on cash flow hedges are recorded in net investment income. For interest rate swaptions classified as fair value hedges, the change in the time value of the swaptions is recognized in other comprehensive income (loss) and amortized into net investment income over its legal term. If the swaption is early terminated but the hedge itemsitem is still outstanding, the amortization of disposal amount of the swaptions is recorded in net investment income over the remaining life of the hedged items.
(2) Gains and losseson cash flow hedges and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses). Gains and losses on derivatives and net investment hedge itemshedges related to changes in foreign currency spot rates are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).
(2)(3) Impact of cash flow hedges reported as net investment gains (losses) includes $1 of losses reclassified from accumulated other comprehensive income (loss) into earnings during the three-month period ended March 31, 2023, and $1 of losses during the three-month period ended March 31, 2022. In addition, an immaterial amount of losses were reclassified from accumulated other comprehensive income (loss) into earnings during the three-month period ended March 31, 2023, and an immaterial amount during the three-month period ended March 31, 2022, related to fair value hedges excluded component.Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail).


The Company reclassified an immaterial amount related to its cash flow hedges from accumulated other comprehensive income (loss) into earnings for the three- and nine-month periods ended September 30, 2017, and reclassified an immaterial amount and a $1 million gain for the three- and nine-month periods ended September 30, 2016, respectively. There was no gain orloss reclassified from accumulated other comprehensive income (loss) into earnings related to the net investment hedge for the three- and nine-month periods ended September 30, 2017 and 2016,

respectively. As of September 30, 2017,March 31, 2023, $5 million of deferred gains and losses on derivative instruments recorded in accumulated other comprehensive income that are expected to be reclassified tointo earnings during the next twelve months were immaterial.months.


Credit Risk Assumed through Derivatives


For the foreign currency and credit default swaps associated with the Company's VIE investments for which it is the primary beneficiary, the Company bears the risk of loss due to counterparty default even though it is not a direct counterparty to those contracts.


The Company is a direct counterparty to the foreign currency swaps that it has entered into in connection with certain of its senior notes and subordinated debentures; foreign currency forwards; and foreign currency options; and interest rate swaptions,options, and therefore the Company is exposed to credit risk in the event of nonperformance by the counterparties in those contracts. The risk of counterparty default for the Company's foreign currency swaps, certain foreign currency forwards, and foreign currency options and interest rate swaptions is mitigated by collateral posting requirements that counterparties to those transactions must meet.


36


As of September 30, 2017, there were 15 counterparties toMarch 31, 2023, all of the Company's derivative agreements, with five comprising 67% of the aggregate notional amount. Theagreement counterparties to these derivatives are financial institutions with the following credit ratings:were investment grade.
 September 30, 2017December 31, 2016
(In millions)Notional Amount
of Derivatives
Asset Derivatives
Fair Value
Liability Derivatives
Fair Value
Notional Amount
of Derivatives
Asset Derivatives
Fair Value
Liability Derivatives
Fair Value
Counterparties' credit rating:                  
AA $5,553
  $90
  $(189)  $6,844
  $247
  $(308) 
A 22,257
  381
  (718)  36,019
  900
  (1,621) 
BBB 440
  8
  (67)  1,064
  60
  (69) 
Total $28,250
  $479
  $(974)  $43,927
  $1,207
  $(1,998) 


The Company engages in over-the-counter (OTC) bilateral derivative transactions directly with unaffiliated third parties under International Swaps and Derivatives Association, Inc. (ISDA) agreements and other documentation. Most of the ISDA agreements also include Credit Support Annexes (CSAs) provisions, which generally provide for two-way collateral postings at the first dollar of exposure. The Company mitigates the risk that counterparties to transactions might be unable to fulfill their contractual obligations by monitoring counterparty credit exposure and collateral value while generally requiring that collateral be posted at the outset of the transaction. In addition, a significant portion of the derivative transactions have provisions that give the counterparty the right to terminate the transaction upon a downgrade of Aflac’sthe Company's financial strength rating. The actual amount of payments that the Company could be required to make depends on market conditions, the fair value of outstanding affected transactions, and other factors prevailing at and after the time of the downgrade.


The Company also engages in OTC cleared derivative transactions through regulated central clearing counterparties. These positions are marked to market and margined on a daily basis (both initial margin and variation margin), and the Company has minimal exposure to credit-related losses in the event of nonperformance by counterparties to these derivatives.

Collateral posted by the Company to third parties for derivative transactions can generally be repledged or resold by the counterparties. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position by counterparty was approximately $623$767 million and $1.2$1.3 billion as of September 30, 2017,March 31, 2023, and December 31, 2016,2022, respectively. If the credit-risk-related contingent features underlying these agreements had been triggered on September 30, 2017,March 31, 2023, the Company estimates that it would be required to post a maximum of $5$222 million of additional collateral to these derivative counterparties. The Company is generally allowed to sell or repledge collateral obtained from its derivative counterparties, although it does not typically exercise such rights. (See the Offsetting tables below for collateral posted or received as of the reported balance sheet dates.)


Offsetting of Financial Instruments and Derivatives


Most of the Company's derivative instruments are subject to enforceable master netting arrangements that provide for the net settlement of all derivative contracts between the Parent Company or Aflacits subsidiaries and itsthe respective counterparty in the event of default or upon the occurrence of certain termination events. Collateral support agreements with the master netting arrangements generally provide that the Company will receive or pledge financial collateral at the first dollar of exposure.



The Company has securities lending agreements with unaffiliated financial institutions that post collateral to the Company in return for the use of its fixed maturity and public equity securities (see Note 3). When the Company has entered into securities lending agreements with the same counterparty, the agreements generally provide for net settlement in the event of default by the counterparty. This right of set-off allows the Company to keep and apply collateral received if the counterparty failed to return the securities borrowed from the Company as contractually agreed.


The tables below summarize the Company's derivatives and securities lending transactions, and as reflected in the tables, in accordance with U.S. GAAP, the Company's policy is to not offset these financial instruments in the Consolidated Balance Sheets.



37


Offsetting of Financial Assets and Derivative AssetAssets
March 31, 2023
Gross Amounts Not Offset
in Balance Sheet
(In millions)Gross Amount of Recognized AssetsGross Amount
Offset in
Balance
Sheet
Net Amount of Assets Presented
 in Balance Sheet
Financial InstrumentsSecurities
Collateral
Cash Collateral ReceivedNet Amount
Derivative
  assets:
    Derivative
      assets subject to a
      master netting
      agreement or
      offsetting
      arrangement
          OTC - bilateral$460 $0 $460 $(71)$(61)$(326)$2 
          OTC - cleared26 0 26 (26)0 0 0 
    Total derivative
      assets subject to a
      master netting
      agreement or
      offsetting
      arrangement
486 0 486 (97)(61)(326)2 
    Derivative
      assets not subject
      to a master netting
      agreement or
      offsetting
      arrangement
          OTC - bilateral63 63 63 
    Total derivative
      assets not subject
      to a master netting
      agreement or
      offsetting
      arrangement
63 63 63 
    Total derivative
      assets
549 0 549 (97)(61)(326)65 
Securities lending
   and similar
   arrangements
3,418 0 3,418 0 0 (3,418)0 
    Total$3,967 $0 $3,967 $(97)$(61)$(3,744)$65 

38


September 30, 2017
December 31, 2022December 31, 2022
  Gross Amounts Not Offset
in Balance Sheet
  Gross Amounts Not Offset
in Balance Sheet
(In millions)Gross Amount of Recognized Assets 
Gross Amount
Offset in
Balance Sheet
 
Net Amount of Assets Presented
 in Balance Sheet
 Financial Instruments 
Securities
Collateral
 Cash Collateral Received Net Amount(In millions)Gross Amount of Recognized AssetsGross Amount
Offset in
Balance
Sheet
Net Amount of Assets Presented
 in Balance Sheet
Financial InstrumentsSecurities
Collateral
Cash Collateral ReceivedNet Amount
Derivative
assets:
               Derivative
assets:
Derivative
assets subject to a
master netting
agreement or
offsetting
arrangement
 $331
 $0
 $331
 $(219) $0
 $(112) $0
 
Derivative
assets subject to a
master netting
agreement or
offsetting
arrangement
OTC - bilateral OTC - bilateral$548 $$548 $(167)$(60)$(320)$
OTC - cleared OTC - cleared(7)
Total derivative
assets subject to a
master netting
agreement or
offsetting
arrangement
Total derivative
assets subject to a
master netting
agreement or
offsetting
arrangement
555 555 (174)(60)(320)
Derivative
assets not subject
to a master netting
agreement or
offsetting
arrangement
 148
   148
       148
 
Derivative
assets not subject
to a master netting
agreement or
offsetting
arrangement
OTC - bilateral OTC - bilateral62 62 62 
Total derivative
assets not subject
to a master netting
agreement or
offsetting
arrangement
Total derivative
assets not subject
to a master netting
agreement or
offsetting
arrangement
62 62 62 
Total derivative
assets
 479
 0
 479
 (219) 0
 (112) 148
  Total derivative
assets
617 617 (174)(60)(320)63 
Securities lending
and similar
arrangements
 509
 0
 509
 0
 0
 (509) 0
 Securities lending
and similar
arrangements
1,788 1,788 (1,788)
Total $988
 $0
 $988
 $(219) $0
 $(621) $148
  Total$2,405 $$2,405 $(174)$(60)$(2,108)$63 






















39

December 31, 2016
   Gross Amounts Not Offset
in Balance Sheet
  
(In millions)Gross Amount of Recognized Assets 
Gross Amount
Offset in
Balance Sheet
 
Net Amount of Assets Presented
 in Balance Sheet
 Financial Instruments 
Securities
Collateral
 Cash Collateral Received Net Amount
Derivative
  assets:
                         
    Derivative
      assets subject to a
      master netting
      agreement or
      offsetting
      arrangement
 $1,080
   $0
   $1,080
   $(698)  $0
  $(382)   $0
 
    Derivative
      assets not subject
      to a master netting
      agreement or
      offsetting
      arrangement
 127
       127
             127
 
    Total derivative
      assets
 1,207
   0
   1,207
   (698)  0
  (382)   127
 
Securities lending
   and similar
   arrangements
 513
   0
   513
   0
  0
  (513)   0
 
    Total $1,720
   $0
   $1,720
   $(698)  $0
  $(895)   $127
 



Offsetting of Financial Liabilities and Derivative Liabilities
March 31, 2023
Gross Amounts Not Offset
in Balance Sheet
(In millions)Gross Amount of Recognized LiabilitiesGross Amount
Offset in
Balance
Sheet
Net Amount of Liabilities Presented
 in Balance Sheet
Financial InstrumentsSecurities
Collateral
Cash Collateral PledgedNet Amount
Derivative
  liabilities:
    Derivative
      liabilities subject
      to a master netting
      agreement or
      offsetting
      arrangement
          OTC - bilateral$176 $0 $176 $(71)$(80)$(9)$16 
          OTC - cleared483 0 483 (26)0 (456)1 
    Total derivative
      liabilities subject
      to a master netting
      agreement or
      offsetting
      arrangement
659 0 659 (97)(80)(465)17 
    Derivative
      liabilities not
      subject to a
      master netting
      agreement or
      offsetting
      arrangement
          OTC - bilateral399 399 399 
    Total derivative
      liabilities not
      subject to a
      master netting
      agreement or
      offsetting
      arrangement
399 399 399 
    Total derivative
      liabilities
1,058 0 1,058 (97)(80)(465)416 
Securities lending
   and similar
   arrangements
3,460 0 3,460 (3,418)0 0 42 
    Total$4,518 $0 $4,518 $(3,515)$(80)$(465)$458 

40


September 30, 2017
December 31, 2022December 31, 2022
  Gross Amounts Not Offset
in Balance Sheet
  Gross Amounts Not Offset
in Balance Sheet
(In millions)Gross Amount of Recognized Liabilities 
Gross Amount
Offset in
Balance Sheet
 
Net Amount of Liabilities Presented
 in Balance Sheet
 Financial Instruments 
Securities
Collateral
 Cash Collateral Pledged Net Amount(In millions)Gross Amount of Recognized LiabilitiesGross Amount
Offset in
Balance
Sheet
Net Amount of Liabilities Presented
 in Balance Sheet
Financial InstrumentsSecurities
Collateral
Cash Collateral PledgedNet Amount
Derivative
liabilities:
               Derivative
liabilities:
Derivative
liabilities subject
to a master netting
agreement or
offsetting
arrangement
 $(842) $0
 $(842) $219
 $611
 $7
 $(5) 
Derivative
liabilities subject
to a master netting
agreement or
offsetting
arrangement
OTC - bilateral OTC - bilateral$725 $$725 $(167)$(506)$(52)$
OTC - cleared OTC - cleared583 583 (7)(577)(1)
Total derivative
liabilities subject
to a master netting
agreement or
offsetting
arrangement
Total derivative
liabilities subject
to a master netting
agreement or
offsetting
arrangement
1,308 1,308 (174)(506)(629)(1)
Derivative
liabilities not
subject to a
master netting
agreement or
offsetting
arrangement
 (132)   (132)       (132) 
Derivative
liabilities not
subject to a
master netting
agreement or
offsetting
arrangement
OTC - bilateral OTC - bilateral390 390 390 
Total derivative
liabilities not
subject to a
master netting
agreement or
offsetting
arrangement
Total derivative
liabilities not
subject to a
master netting
agreement or
offsetting
arrangement
390 390 390 
Total derivative
liabilities
 (974) 0
 (974) 219
 611
 7
 (137)  Total derivative
liabilities
1,698 1,698 (174)(506)(629)389 
Securities lending
and similar
arrangements
 (522) 0
 (522) 509
 0
 0
 (13) Securities lending
and similar
arrangements
1,809 1,809 (1,788)21 
Total $(1,496) $0
 $(1,496) $728
 $611
 $7
 $(150)  Total$3,507 $$3,507 $(1,962)$(506)$(629)$410 



December 31, 2016
   Gross Amounts Not Offset
in Balance Sheet
  
(In millions)Gross Amount of Recognized Liabilities 
Gross Amount
Offset in
Balance Sheet
 
Net Amount of Liabilities Presented
 in Balance Sheet
 Financial Instruments 
Securities
Collateral
 Cash Collateral Pledged Net Amount
Derivative
  liabilities:
                         
    Derivative
      liabilities subject
      to a master netting
      agreement or
      offsetting
      arrangement
 $(1,852)   $0
   $(1,852)   $698
  $1,130
  $21
   $(3) 
    Derivative
      liabilities not
      subject to a
      master netting
      agreement or
      offsetting
      arrangement
 (146)       (146)             (146) 
    Total derivative
      liabilities
 (1,998)   0
   (1,998)   698
  1,130
  21
   (149) 
Securities lending
   and similar
   arrangements
 (526)   0
   (526)   513
  0
  0
   (13) 
    Total $(2,524)   $0
   $(2,524)   $1,211
  $1,130
  $21
   $(162) 


For additional information on the Company's financial instruments, see the accompanying Notes 1, 3 and 5 and Notes 1, 3 and 5 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.


5.FAIR VALUE MEASUREMENTS

5.    FAIR VALUE MEASUREMENTS

Fair Value Hierarchy


U.S. GAAP specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. These two types of inputs create three valuation hierarchy levels. Level 1 valuations reflect quoted market prices for identical assets or liabilities in active markets. Level 2 valuations reflect quoted market prices for similar assets or liabilities in an active market, quoted market prices for identical or similar assets or liabilities in non-active markets or model-derived valuations in which all significant valuation inputs are observable in active markets. Level 3 valuations reflect valuations in which one or more of the significant inputs are not observable in an active market.



The following tables present the fair value hierarchy levels of the Company's assets and liabilities that are measured and carried at fair value on a recurring basis.
41


  
September 30, 2017
(In millions)Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 Significant
Observable
Inputs
(Level 2)
 Significant
Unobservable
Inputs
(Level 3)
 Total
Fair
Value
Assets:               
Securities available for sale, carried at
fair value:
               
  Fixed maturities:               
Government and agencies $29,067
   $971
   $0
   $30,038
 
Municipalities 0
   1,292
   0
   1,292
 
Mortgage- and asset-backed securities 0
   278
   178
   456
 
Public utilities 0
   7,938
   77
   8,015
 
Sovereign and supranational 0
   2,029
   0
   2,029
 
Banks/financial institutions 0
   6,985
   25
   7,010
 
Other corporate 0
   31,473
   102
   31,575
 
Total fixed maturities 29,067
   50,966
   382
   80,415
 
  Perpetual securities:               
Banks/financial institutions 0
   1,627
   0
   1,627
 
Other corporate 0
   236
   0
   236
 
Total perpetual securities 0
   1,863
   0
   1,863
 
Equity securities 905
   5
   18
   928
 
Other assets:               
Foreign currency swaps 0
   154
   147
   301
 
Foreign currency forwards 0
   160
   0
   160
 
Foreign currency options 0
   17
   0
   17
 
Credit default swaps 0
   0
   1
   1
 
Total other assets 0
   331
   148
   479
 
Other investments 57
   0
   0
   57
 
Cash and cash equivalents 4,927
   0
   0
   4,927
 
Total assets $34,956
   $53,165
   $548
   $88,669
 
Liabilities:               
Other liabilities:               
Foreign currency swaps $0
   $64
   $132
   $196
 
Foreign currency forwards 0
   754
   0
   754
 
Foreign currency options 0
   24
   0
   24
 
Total liabilities $0
   $842
   $132
   $974
 



  
March 31, 2023
(In millions)Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Fair
Value
Assets:
Securities available for sale, carried at
  fair value:
Fixed maturity securities:
Government and agencies$24,903 $990 $0 $25,893 
Municipalities0 2,416 0 2,416 
Mortgage- and asset-backed securities0 2,149 418 2,567 
Public utilities0 7,583 350 7,933 
Sovereign and supranational0 691 37 728 
Banks/financial institutions0 9,259 161 9,420 
Other corporate0 28,389 753 29,142 
Total fixed maturity securities24,903 51,477 1,719 78,099 
Equity securities806 60 221 1,087 
Other investments2,561 0 0 2,561 
Cash and cash equivalents3,809 0 0 3,809 
Other assets:
Foreign currency swaps0 118 0 118 
Foreign currency forwards0 359 0 359 
Foreign currency options0 46 0 46 
Interest rate swaps0 26 0 26 
Total other assets0 549 0 549 
Total assets$32,079 $52,086 $1,940 $86,105 
Liabilities:
Other liabilities:
Foreign currency swaps$0 $399 $0 $399 
Foreign currency forwards0 176 0 176 
Interest rate swaps0 483 0 483 
Total liabilities$0 $1,058 $0 $1,058 
42


December 31, 2016
December 31, 2022
(In millions)Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 Significant
Observable
Inputs
(Level 2)
 Significant
Unobservable
Inputs
(Level 3)
 Total
Fair
Value
(In millions)Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Fair
Value
Assets:         Assets:
Securities available for sale, carried at
fair value:
         Securities available for sale, carried at
fair value:
Fixed maturities:         
Fixed maturity securities:Fixed maturity securities:
Government and agencies $25,387
 $827
 $0
 $26,214
 Government and agencies$24,158 $956 $$25,114 
Municipalities 0
 1,295
 0
 1,295
 Municipalities2,320 2,320 
Mortgage- and asset-backed securities 0
 1,139
 198
 1,337
 Mortgage- and asset-backed securities1,803 343 2,146 
Public utilities 0
 7,667
 16
 7,683
 Public utilities7,169 497 7,666 
Sovereign and supranational 0
 1,469
 0
 1,469
 Sovereign and supranational797 37 834 
Banks/financial institutions 0
 6,038
 25
 6,063
 Banks/financial institutions9,140 159 9,299 
Other corporate 0
 29,699
 0
 29,699
 Other corporate27,620 742 28,362 
Total fixed maturities 25,387
 48,134
 239
 73,760
 
Perpetual securities:         
Banks/financial institutions 0
 1,420
 0
 1,420
 
Other corporate 0
 213
 0
 213
 
Total perpetual securities 0
 1,633
 0
 1,633
 
Total fixed maturity securitiesTotal fixed maturity securities24,158 49,805 1,778 75,741 
Equity securities 1,300
 6
 3
 1,309
 Equity securities822 60 209 1,091 
Other investmentsOther investments1,532 1,532 
Cash and cash equivalentsCash and cash equivalents3,943 3,943 
Other assets:         Other assets:
Foreign currency swaps 0
 365
 125
 490
 Foreign currency swaps128 128 
Foreign currency forwards 0
 672
 0
 672
 Foreign currency forwards400 400 
Foreign currency options 0
 43
 0
 43
 Foreign currency options82 82 
Credit default swaps 0
 0
 2
 2
 
Interest rate swapsInterest rate swaps
Total other assets 0
 1,080
 127
 1,207
 Total other assets617 617 
Other investments 276
 0
 0
 276
 
Cash and cash equivalents 4,859
 0
 0
 4,859
 
Total assets $31,822
 $50,853
 $369
 $83,044
 Total assets$30,455 $50,482 $1,987 $82,924 
Liabilities:         Liabilities:
Other liabilities:         Other liabilities:
Foreign currency swaps $0
 $84
 $146
 $230
 Foreign currency swaps$$390 $$390 
Foreign currency forwards 0
 1,717
 0
 1,717
 Foreign currency forwards725 725 
Foreign currency options 0
 51
 0
 51
 
Interest rate swapsInterest rate swaps583 583 
Total liabilities $0
 $1,852
 $146
 $1,998
 Total liabilities$$1,698 $$1,698 


U.S. GAAP requires disclosure of the fair value of certain financial instruments including those that are not carried at fair value. The carrying amounts for cash and cash equivalents, other investments (excluding loan receivables), receivables, accrued investment income, accounts payable, cash collateral and payables for security transactions approximated their fair values due to the nature of these instruments. Liabilities for future policy benefits and unpaid policy claims are not financial instruments as defined by U.S. GAAP.

43



The following tables present the carrying amount and fair value categorized by fair value hierarchy level for the Company's financial instruments that are not carried at fair value.
  
March 31, 2023
(In millions)Carrying
Value
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Fair
Value
Assets:
Securities held to maturity,
    carried at amortized cost:
  Fixed maturity securities:
Government and agencies$18,152 $20,517 $183 $0 $20,700 
Municipalities285 0 341 0 341 
Public utilities37 0 42 0 42 
Sovereign and
   supranational
443 0 510 0 510 
Other corporate19 0 23 0 23 
Commercial mortgage and
    other loans
13,328 0 0 13,052 13,052 
Other investments (1)
34 0 34 0 34 
 Total assets$32,298 $20,517 $1,133 $13,052 $34,702 
Liabilities:
Other policyholders’ funds$6,668 $0 $0 $6,569 $6,569 
Notes payable
   (excluding leases)
7,270 0 6,175 797 6,972 
Total liabilities$13,938 $0 $6,175 $7,366 $13,541 
  
September 30, 2017
(In millions)Carrying
Value
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 Significant
Observable
Inputs
(Level 2)
 Significant
Unobservable
Inputs
(Level 3)
 Total
Fair
Value
Assets:                  
Securities held to maturity,
carried at amortized cost:
                  
  Fixed maturities:                  
Government and agencies $21,385
  $26,455
   $0
   $0
   $26,455
 
Municipalities 359
  0
   463
   0
   463
 
Mortgage and asset-backed
securities
 27
  0
   9
   20
   29
 
Public utilities 3,308
  0
   3,734
   0
   3,734
 
Sovereign and
supranational
 1,527
  0
   1,846
   0
   1,846
 
Banks/financial institutions 2,700
  0
   2,887
   0
   2,887
 
Other corporate 2,692
  0
   3,185
   0
   3,185
 
Other investments (1)
 2,011
  0
   15
   1,985
   2,000
 
 Total assets $34,009
  $26,455
   $12,139
   $2,005
   $40,599
 
Liabilities:                  
Other policyholders’ funds $6,967
  $0
   $0
   $6,849
   $6,849
 
Notes payable
(excluding capital leases)
 5,230
  506
   4,780
   265
   5,551
 
Total liabilities $12,197
  $506
   $4,780
   $7,114
   $12,400
 
(1)Excludes policy loans of $207$214 and equity method investments of $83,$2,432, at carrying value

44


December 31, 2016
December 31, 2022
(In millions)Carrying
Value
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 Significant
Observable
Inputs
(Level 2)
 Significant
Unobservable
Inputs
(Level 3)
 Total
Fair
Value
(In millions)Carrying
Value
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Fair
Value
Assets:           Assets:
Securities held to maturity,
carried at amortized cost:
           Securities held to maturity,
carried at amortized cost:
Fixed maturities:           
Fixed maturity securities: Fixed maturity securities:
Government and agencies $20,702
 $26,040
 $0
 $0
 $26,040
 Government and agencies$18,267 $20,132 $180 $$20,312 
Municipalities 350
 0
 457
 0
 457
 Municipalities287 335 335 
Mortgage and asset-backed
securities
 30
 0
 10
 22
 32
 
Public utilities 3,201
 0
 3,536
 0
 3,536
 Public utilities37 41 41 
Sovereign and
supranational
 2,602
 0
 2,877
 0
 2,877
 Sovereign and
supranational
446 500 500 
Banks/financial institutions 3,731
 0
 3,900
 0
 3,900
 
Other corporate 2,734
 0
 3,179
 0
 3,179
 Other corporate19 22 22 
Commercial mortgage and
other loans
Commercial mortgage and
other loans
13,496 13,212 13,212 
Other investments(1) 1,174
 0
 0
 1,142
 1,142
 34 34 34 
Total assets $34,524
 $26,040
 $13,959
 $1,164
 $41,163
  Total assets$32,586 $20,132 $1,112 $13,212 $34,456 
Liabilities:           Liabilities:
Other policyholders’ funds $6,659
 $0
 $0
 $6,540
 $6,540
 Other policyholders’ funds$6,643 $$$6,543 $6,543 
Notes payable
(excluding capital leases)
 5,339
 0
 0
 5,530
 5,530
 
Notes payable
(excluding leases)
Notes payable
(excluding leases)
7,295 6,024 802 6,826 
Total liabilities $11,998
 $0
 $0
 $12,070
 $12,070
 Total liabilities$13,938 $$6,024 $7,345 $13,369 

(1)Excludes policy loans of $214 and equity method investments of $2,290, at carrying value
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

Fair Value of Financial Instruments


Fixed maturities, perpetual securities,maturity and equity securities


The Company determines the fair values of its fixed maturity securities perpetual securities, and public and privately issued equity securities using the following approaches or techniques: price quotes and valuations from third party pricing vendors (including quoted market prices readily available from public exchange markets), in-house valuations and non-binding price quotes the Company obtains from outside brokers.


A third party pricing vendor has developed valuation models to determineThe fair values of privately issuedthe Company’s public fixed maturity securities to reflectare generally based on prices provided by third-party pricing vendors. The Company utilizes internally generated valuations or broker quotes for privately-issued fixed maturity securities or fixed maturity securities where there is no price available from a third-party pricing vendor. For internally generated valuations, the impact of the persistent economic environmentCompany utilizes valuation models developed by a third-party pricing vendor. The models and the changing regulatory framework. associated processes and controls are executed by Company personnel.

These models are discounted cash flow (DCF) valuation models but also use information from related markets, specifically public bond markets and the CDScredit default swap (CDS) market, to estimate expected cash flows. TheseThe models take into consideration any unique characteristics of the securities and make various adjustments to arrive at an appropriate issuer-specific loss adjusted credit curve.curve using the most appropriate comparable security(ies) of the issuer and issuer-specific CDS spreads. This credit curve is then used with the relevant recovery rates to estimate expected cash flows and modeling of additional features, including illiquidity adjustments, if necessary, to price the security by discounting those loss adjusted cash flows. In cases where a credit curve cannot be developed from market information for the specific security features,issuer, the valuation methodology takes into consideration other market observable inputs, including:

1) the most appropriate comparable security(ies) of the issuer; a guarantor and/or parent
2) issuer-specific CDS spreads; spreads of a guarantor and/or parent
3) bonds or CDS spreads of comparable issuers with similar characteristics such as rating, geography, or sector;sector
45


4) CDS spreads of an appropriate index or 4)of comparable issuers with similar characteristics such as rating, geography, or sector
5) bond indices that are comparative in rating, industry, maturity, and region.


Prices for public equity securities are readily available and are acquired from independent market data providers or established security dealer associations.

The pricing data and market quotes the Company obtains from outside sources, including third party pricing services, are reviewed internally for reasonableness. If a fair value appears unreasonable, the Company will re-examine the inputs and assess the reasonableness of the pricing data with the vendor.provider. Additionally, the Company may compare the inputs to relevant market indices and other performance measurements. The output of this analysis is presented to the Company's Valuation and Classification Subcommittee (VCS). Based on themanagement's analysis, provided to the VCS, the valuation is confirmed or may be revised if there is evidence of a more appropriate estimate of fair value based on available market data. The

Company has performed verification of the inputs and calculations in any valuation models, including independent validations and back testing, to confirm that the valuations represent reasonable estimates of fair value.

The fixed maturities classified as Level 3 consist of securities with limited or no observable valuation inputs. For Level 3 securities, the Company estimates the fair value of these securities by obtaining non-binding broker quotes from a limited number of brokers. These brokers base their quotes on a combination of their knowledge of the current pricing environment and market conditions. The Company considers these inputs to be unobservable. The Company also considers a variety of significant valuation inputs in the valuation process, including forward exchange rates, yen swap rates, dollar swap rates, interest rate volatilities, credit spread data on specific issuers, assumed default and default recovery rates, and certain probability assumptions. In obtaining these valuation inputs, the Company has determined that certain pricing assumptions and data used by its pricing sources are difficult to validate or corroborate by the market and/or appear to be internally developed rather than observed in or corroborated by the market. The use of these unobservable valuation inputs causes more subjectivity in the valuation process for these securities.


For the periods presented, the Company has not adjusted the quotes or prices it obtains from the pricing services and brokers it uses.


The following tables present the pricing sources for the fair values of the Company's fixed maturities, perpetual securities,maturity and equity securities.

46



March 31, 2023
(In millions)Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Total
Fair
Value
Securities available for sale, carried at fair value:
      Fixed maturity securities:
         Government and agencies:
Third party pricing vendor$24,903 $610 $0 $25,513 
Internal0 380 0 380 
               Total government and agencies24,903 990 0 25,893 
         Municipalities:
Third party pricing vendor0 2,108 0 2,108 
Internal0 308 0 308 
Broker/other0 0 0 0 
               Total municipalities0 2,416 0 2,416 
         Mortgage- and asset-backed securities:
Third party pricing vendor0 2,038 0 2,038 
Internal0 53 0 53 
Broker/other0 58 418 476 
               Total mortgage- and asset-backed securities0 2,149 418 2,567 
         Public utilities:
Third party pricing vendor0 3,898 0 3,898 
Internal0 3,685 0 3,685 
Broker/other0 0 350 350 
               Total public utilities0 7,583 350 7,933 
         Sovereign and supranational:
Third party pricing vendor0 232 0 232 
Internal0 459 0 459 
Broker/other0 0 37 37 
               Total sovereign and supranational0 691 37 728 
         Banks/financial institutions:
Third party pricing vendor0 4,690 0 4,690 
Internal0 4,569 108 4,677 
Broker/other0 0 53 53 
               Total banks/financial institutions0 9,259 161 9,420 
         Other corporate:
Third party pricing vendor0 22,726 0 22,726 
Internal0 5,663 289 5,952 
Broker/other0 0 464 464 
               Total other corporate0 28,389 753 29,142 
                  Total securities available for sale$24,903 $51,477 $1,719 $78,099 
Equity securities, carried at fair value:
Third party pricing vendor$806 $60 $0 $866 
Broker/other0 0 221 221 
               Total equity securities$806 $60 $221 $1,087 





























47


March 31, 2023
(In millions)(In millions)Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Total
Fair
 Value
Securities held to maturity, carried at amortized cost:Securities held to maturity, carried at amortized cost:
Fixed maturity securities: Fixed maturity securities:
Government and agencies: Government and agencies:
Third party pricing vendorThird party pricing vendor$20,517 $183 $0 $20,700 
Total government and agencies Total government and agencies20,517 183 0 20,700 
Municipalities: Municipalities:
Third party pricing vendorThird party pricing vendor0 341 0 341 
Total municipalities Total municipalities0 341 0 341 
 September 30, 2017
(In millions) Quoted Prices in Active Markets for Identical Assets
(Level 1)
 Significant Observable Inputs
(Level 2)
 Significant Unobservable Inputs
(Level 3)
 Total
Fair
Value
Securities available for sale, carried at fair value:         
Fixed maturities:         
Government and agencies:         
Third party pricing vendor $29,067
 $971
 $0
 $30,038
 
Total government and agencies 29,067
 971
 0
 30,038
 
Municipalities:         
Third party pricing vendor 0
 1,292
 0
 1,292
 
Total municipalities 0
 1,292
 0
 1,292
 
Mortgage- and asset-backed securities:         
Third party pricing vendor 0
 278
 0
 278
 
Broker/other 0
 0
 178
 178
 
Total mortgage- and asset-backed securities 0
 278
 178
 456
 
Public utilities:          Public utilities:
Third party pricing vendor 0
 7,938
 0
 7,938
 Third party pricing vendor0 42 0 42 
Broker/other 0
 0
 77
 77
 
Total public utilities 0
 7,938
 77
 8,015
  Total public utilities0 42 0 42 
Sovereign and supranational:          Sovereign and supranational:
Third party pricing vendor 0
 2,029
 0
 2,029
 Third party pricing vendor0 246 0 246 
Broker/otherBroker/other0 264 0 264 
Total sovereign and supranational 0
 2,029
 0
 2,029
  Total sovereign and supranational0 510 0 510 
Banks/financial institutions:         
Third party pricing vendor 0
 6,985
 0
 6,985
 
Broker/other 0
 0
 25
 25
 
Total banks/financial institutions 0
 6,985
 25
 7,010
 
Other corporate:          Other corporate:
Third party pricing vendor 0
 31,473
 0
 31,473
 Third party pricing vendor0 23 0 23 
Broker/other 0
 0
 102
 102
 
Total other corporate 0
 31,473
 102
 31,575
  Total other corporate0 23 0 23 
Total fixed maturities 29,067
 50,966
 382
 80,415
 
Perpetual securities:         
Banks/financial institutions:         
Third party pricing vendor 0
 1,627
 0
 1,627
 
Total banks/financial institutions 0
 1,627
 0
 1,627
 
Other corporate:         
Third party pricing vendor 0
 236
 0
 236
 
Total other corporate 0
 236
 0
 236
 
Total perpetual securities 0
 1,863
 0
 1,863
 
Equity securities:         
Third party pricing vendor 905
 5
 0
 910
 
Broker/other 0
 0
 18
 18
 
Total equity securities 905
 5
 18
 928
 
Total securities available for sale $29,972
 $52,834
 $400
 $83,206
 
Total securities held to maturity Total securities held to maturity$20,517 $1,099 $0 $21,616 






48


 September 30, 2017December 31, 2022
(In millions) Quoted Prices in Active Markets for Identical Assets
(Level 1)
 Significant Observable Inputs
(Level 2)
 Significant Unobservable Inputs
(Level 3)
 Total
Fair
Value
(In millions)Quoted Prices in Active Markets
for Identical Assets
(Level 1)
Significant Observable
Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Total
Fair
Value
Securities held to maturity, carried at amortized cost:         
Fixed maturities:         
Securities available for sale, carried at fair value:Securities available for sale, carried at fair value:
Fixed maturity securities: Fixed maturity securities:
Government and agencies:          Government and agencies:
Third party pricing vendor $26,455
 $0
 $0
 $26,455
 Third party pricing vendor$24,158 $582 $$24,740 
InternalInternal374 374 
Total government and agencies 26,455
 0
 0
 26,455
  Total government and agencies24,158 956 25,114 
Municipalities:          Municipalities:
Third party pricing vendor 0
 463
 0
 463
 Third party pricing vendor2,021 2,021 
InternalInternal299 299 
Total municipalities 0
 463
 0
 463
  Total municipalities2,320 2,320 
Mortgage- and asset-backed securities:          Mortgage- and asset-backed securities:
Third party pricing vendor 0
 9
 0
 9
 Third party pricing vendor1,798 1,798 
InternalInternal
Broker/other 0
 0
 20
 20
 Broker/other343 345 
Total mortgage- and asset-backed securities 0
 9
 20
 29
  Total mortgage- and asset-backed securities1,803 343 2,146 
Public utilities:          Public utilities:
Third party pricing vendor 0
 3,734
 0
 3,734
 Third party pricing vendor3,786 3,786 
InternalInternal3,383 3,383 
Broker/otherBroker/other497 497 
Total public utilities 0
 3,734
 0
 3,734
  Total public utilities7,169 497 7,666 
Sovereign and supranational:          Sovereign and supranational:
Third party pricing vendor 0
 1,846
 0
 1,846
 Third party pricing vendor232 232 
InternalInternal565 565 
Broker/otherBroker/other37 37 
Total sovereign and supranational 0
 1,846
 0
 1,846
  Total sovereign and supranational797 37 834 
Banks/financial institutions:          Banks/financial institutions:
Third party pricing vendor 0
 2,887
 0
 2,887
 Third party pricing vendor4,622 4,622 
InternalInternal4,518 105 4,623 
Broker/otherBroker/other54 54 
Total banks/financial institutions 0
 2,887
 0
 2,887
  Total banks/financial institutions9,140 159 9,299 
Other corporate:          Other corporate:
Third party pricing vendor 0
 3,185
 0
 3,185
 Third party pricing vendor22,268 22,268 
InternalInternal5,352 200 5,552 
Broker/otherBroker/other542 542 
Total other corporate 0
 3,185
 0
 3,185
  Total other corporate27,620 742 28,362 
Total securities held to maturity $26,455
 $12,124
 $20
 $38,599
 
Total securities available for sale Total securities available for sale$24,158 $49,805 $1,778 $75,741 
Equity securities, carried at fair value:Equity securities, carried at fair value:
Third party pricing vendorThird party pricing vendor$822 $60 $$882 
Broker/otherBroker/other209 209 
Total equity securities Total equity securities$822 $60 $209 $1,091 
49


 December 31, 2016December 31, 2022
(In millions) Quoted Prices in Active Markets
for Identical Assets
(Level 1)
 Significant Observable
Inputs
(Level 2)
 Significant Unobservable Inputs
(Level 3)
 Total
Fair
Value
(In millions)Quoted Prices in Active Markets
for Identical Assets
(Level 1)
Significant Observable
Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Total
Fair
 Value
Securities available for sale, carried at fair value:         
Fixed maturities:         
Securities held to maturity, carried at amortized cost:Securities held to maturity, carried at amortized cost:
Fixed maturity securities: Fixed maturity securities:
Government and agencies:          Government and agencies:
Third party pricing vendor $25,387
 $827
 $0
 $26,214
 Third party pricing vendor$20,132 $180 $$20,312 
Total government and agencies 25,387
 827
 0
 26,214
  Total government and agencies20,132 180 20,312 
Municipalities:          Municipalities:
Third party pricing vendor 0
 1,295
 0
 1,295
 Third party pricing vendor335 335 
Total municipalities 0
 1,295
 0
 1,295
  Total municipalities335 335 
Mortgage- and asset-backed securities:         
Third party pricing vendor 0
 1,139
 0
 1,139
 
Broker/other 0
 0
 198
 198
 
Total mortgage- and asset-backed securities 0
 1,139
 198
 1,337
 
Public utilities:          Public utilities:
Third party pricing vendor 0
 7,667
 0
 7,667
 Third party pricing vendor41 41 
Broker/other 0
 0
 16
 16
 
Total public utilities 0
 7,667
 16
 7,683
  Total public utilities41 41 
Sovereign and supranational:          Sovereign and supranational:
Third party pricing vendor 0
 1,469
 0
 1,469
 Third party pricing vendor242 242 
Broker/otherBroker/other258 258 
Total sovereign and supranational 0
 1,469
 0
 1,469
  Total sovereign and supranational500 500 
Banks/financial institutions:         
Third party pricing vendor 0
 6,038
 0
 6,038
 
Broker/other 0
 0
 25
 25
 
Total banks/financial institutions 0
 6,038
 25
 6,063
 
Other corporate:          Other corporate:
Third party pricing vendor 0
 29,699
 0
 29,699
 Third party pricing vendor22 22 
Total other corporate 0
 29,699
 0
 29,699
  Total other corporate22 22 
Total fixed maturities 25,387
 48,134
 239
 73,760
 
Perpetual securities:         
Banks/financial institutions:         
Third party pricing vendor 0
 1,420
 0
 1,420
 
Total banks/financial institutions 0
 1,420
 0
 1,420
 
Other corporate:         
Third party pricing vendor 0
 213
 0
 213
 
Total other corporate 0
 213
 0
 213
 
Total perpetual securities 0
 1,633
 0
 1,633
 
Equity securities:         
Third party pricing vendor 1,300
 6
 0
 1,306
 
Broker/other 0
 0
 3
 3
 
Total equity securities 1,300
 6
 3
 1,309
 
Total securities available for sale $26,687
 $49,773
 $242
 $76,702
 
Total securities held to maturity Total securities held to maturity$20,132 $1,078 $$21,210 


  December 31, 2016
(In millions) Quoted Prices in Active Markets
for Identical Assets
(Level 1)
 Significant Observable
Inputs
(Level 2)
 Significant Unobservable Inputs
(Level 3)
 Total
Fair
Value
Securities held to maturity, carried at amortized cost:                
      Fixed maturities:                
         Government and agencies:                
            Third party pricing vendor  $26,040
   $0
   $0
   $26,040
 
               Total government and agencies  26,040
   0
   0
   26,040
 
         Municipalities:                
            Third party pricing vendor  0
   457
   0
   457
 
               Total municipalities  0
   457
   0
   457
 
         Mortgage- and asset-backed securities:                
            Third party pricing vendor  0
   10
   0
   10
 
            Broker/other  0
   0
   22
   22
 
               Total mortgage- and asset-backed securities  0
   10
   22
   32
 
         Public utilities:                
            Third party pricing vendor  0
   3,536
   0
   3,536
 
               Total public utilities  0
   3,536
   0
   3,536
 
         Sovereign and supranational:                
            Third party pricing vendor  0
   2,877
   0
   2,877
 
               Total sovereign and supranational  0
   2,877
   0
   2,877
 
         Banks/financial institutions:                
            Third party pricing vendor  0
   3,900
   0
   3,900
 
               Total banks/financial institutions  0
   3,900
   0
   3,900
 
         Other corporate:                
            Third party pricing vendor  0
   3,179
   0
   3,179
 
               Total other corporate  0
   3,179
   0
   3,179
 
                  Total securities held to maturity  $26,040
   $13,959
   $22
   $40,021
 


The following is a discussion of the determination of fair value of the Company's remaining financial instruments.


Derivatives


The Company uses derivative instruments to manage the risk associated with certain assets. However, the derivative instrument may not be classified in the same fair value hierarchy level as the associated asset. Inputs usedThe significant inputs to pricing derivatives are generally observable in the market or can be derived by observable market data. When these inputs are observable, the derivatives are classified as Level 2.

The Company uses present value techniques to value derivatives include, butnon-option based derivatives. It also uses option pricing models to value option based derivatives. Key inputs are not limited to, interest rates, credit spreads, foreign currency forward and spot rates, and interest volatility.as follows:


Instrument TypeLevel 2
Interest rate derivatives
Swap yield curves
Basis curves
Interest rate volatility (1)
Foreign currency exchange rate derivatives - Non-VIES (forwards, swaps and options)
Foreign currency forward rates
Swap yield curves
Basis curves
Foreign currency spot rates
Cross foreign currency basis curves
Foreign currency volatility(1)
Foreign currency exchange rate derivatives - VIEs (swaps)
Foreign currency spot rates
Swap yield curves
Credit default swap curves
Basis curves
Recovery rates
Foreign currency forward rates
Foreign cross currency basis curves
(1) Option-based only

50


The fair values of the foreign currency forwards options, and interest rate swaptions associated with certain investments; the foreign currency forwards and options used to hedge foreign exchange risk from the Company's net investment in Aflac Japan and economically hedge certain portions of forecasted cash flows denominated in yen; and the foreign currency swaps associated with certain senior notes and subordinated debentures are based on the amounts the Company would expect to receive or pay. The determination of the fair value of these derivatives is based on observable market inputs, therefore they are classified as Level 2.


The Parent Company has cross-currency swap agreements related to certain of its U.S. dollar-denominated senior notes to effectively convert a portion of the interest on the notes from U.S dollar to Japanese yen. Their fair values are based on observable market inputs, therefore they are classified as Level 2.

To determine the fair value of its interest rate derivatives, the Company uses inputs that are generally observable in the market or can be derived from observable market data. Interest rate swaps are cleared trades. In a cleared swap contract, the clearinghouse provides benefits to the counterparties similar to contracts listed for investment traded on an exchange since it maintains a daily margin to mitigate counterparties' credit risk. These derivatives are priced using observable inputs, accordingly, they are classified as Level 2.

For derivatives associated with VIEs where the Company is the primary beneficiary, the Company is not the direct counterparty to the swap contracts. As a result,Nevertheless, the Company has full transparency into the contracts to properly value the swaps for reporting purposes. For these derivatives, the Company utilizes valuation models developed by independent valuation analytics providers. The models are market standard DCF models and all associated processes and controls are executed by Company personnel. These models take into consideration any unique characteristics of the derivatives in determining the appropriate valuation methodology to estimate expected cash flows. The fair values of these swaps are based on observable market inputs and are classified as Level 2 within the fair value measurements incorporatehierarchy.

For forward bond purchase commitments with VIEs, the credit riskfair value of the collateral associated withderivative is based on the VIE. The Company receives valuations from a third party pricing vendor for these derivatives. Based on an analysis of these derivativesdifference in the fixed purchase price and a reviewthe current market value of the methodology employed by the pricing vendor, the Company determined that duerelated bond prior to the long duration of these swaps andsettlement date. Since the need to extrapolate from short-term observable data to derive and measure long-term inputs, certain inputs, assumptions and judgments are required to value future cash flows that cannot be corroborated by current inputs or current observable market data. Asbond is typically a result,public bond with readily available pricing, the derivatives associated with the Company's consolidated VIEsforward purchase commitment are classified as Level 3 of2 within the fair value hierarchy.


Other investmentsCommercial mortgage and other loans


Other investments where fair value is disclosed aboveCommercial mortgage and other loans include short-term investmentsTREs, CMLs and loan receivables. Loan receivables include commercial mortgage loans and middle market loans.MMLs. The Company's loan receivables do not have readily determinable market prices and generally lack market liquidity. Fair values for loan receivables are determined based on the present value of expected future cash flows discounted at the applicable U.S. Treasury or London Interbank Offered Rate (LIBOR)floating-rate benchmark yield plus an appropriate spread that considers other risk factors, such as credit and liquidity risk. These spreads are provided by the applicable asset managers based on their knowledge of the current loan pricing environment and market conditions. The spreads are a significant component of the pricing inputs and are generally considered unobservable. Therefore, these investments have been assigned aare classified as Level 3 within the fair value hierarchy.


Other investments

Other investments includes short-term investments that are measured at fair value where amortized cost approximates fair value.

Other policyholders' funds


The largest component of the other policyholders' funds liability is the Company's annuity line of business in Aflac Japan. The Company's annuities have fixed benefits and premiums. For this product, the Company estimates the fair value to be equal to the cash surrender value. This is analogous to the value paid to policyholders on the valuation date if they were to surrender their policy. The Company periodically checks the cash value against discounted cash flow projections for reasonableness. The Company considers its inputs for this valuation to be unobservable and have accordingly classified this valuation as Level 3.


Notes payable


As of December 31, 2016, theThe fair values of the Company's publicly issued notes payable were obtained from a limited number of independent brokers and classified as Level 3 within the fair value hierarchy. However, in 2017 recognizing the similarities of the Company'spublicly issued notes payable to fixed income securities in its investment portfolios, the Company aligned the determination of the fair values of these liabilities with its practices of determining asset fair values whereby the Company utilizesare determined by utilizing available sources of observable inputs from third party pricing vendors; therefore, the fair values of the Company's publicly issued notes payable were reclassified intovendors and are classified as Level 2 from Level 3 in the first quarter of 2017. Further review of available sources for these liabilities has led to reclassifying the Parent Company’s subordinated debentures into Level 1 from Level 2 in the second quarter of 2017 given these securities are listed and traded on an exchange where their valuations reflect quoted market prices for identical assets or liabilities in an active market. 2. The fair values of the Company's yen-denominated loans approximate their carrying values.values and are classified as Level 3.






51


Transfers between Hierarchy Levels and Level 3 Rollforward

During the three- and nine-month periods ended September 30, 2017 and 2016, respectively, there were no transfers between Level 1 and 2 for assetsAssets and liabilities are transferred into Level 3 when a significant input cannot be corroborated with market observable data. This occurs when market activity decreases significantly and underlying inputs cannot be observed, current prices are not available, and/or when there are significant variances in quoted prices, thereby affecting transparency. Assets and liabilities are transferred out of Level 3 when circumstances change such that are measured and carried at fair value on a recurring basis.significant input can be corroborated with market observable data. This may be due to a significant increase in market activity, a specific event, or one or more significant input(s) becoming observable.


The following tables present the changes in fair value of the Company's available-for-sale investments and derivativescarried at fair value classified as Level 3.
Three Months Ended
March 31, 2023
 Fixed Maturity SecuritiesEquity
Securities
(In millions)Mortgage-
and
Asset-
Backed
Securities
Public
Utilities
Sovereign
and
Supranational
Banks/
Financial
Institutions
Other
Corporate
 Total
Balance, beginning of period$343 $497 $37 $159 $742 $209 $1,987 
Net investment gains (losses) included
  in earnings
Unrealized gains (losses) included in
  other comprehensive income (loss)
10 30 45 
Purchases, issuances, sales
  and settlements:
Purchases192 75 10 277 
Issuances
Sales
Settlements(120)(7)(2)(129)
Transfers into Level 318 18 
Transfers out of Level 3(168)(92)(260)
Balance, end of period$418 $350 $37 $161 $753 $221 $1,940 
Changes in unrealized gains
  (losses) relating to Level 3 assets
  and liabilities still held at the end
  of the period included in earnings
$$$$$$$
Three Months Ended
March 31, 2022
 Fixed Maturity SecuritiesEquity
Securities
 
(In millions)Mortgage-
and
Asset-
Backed
Securities
Public
Utilities
Sovereign
and
Supranational
Banks/
Financial
Institutions
Other
Corporate
 Total
Balance, beginning of period$291 $493 $43 $45 $426 $173 $1,471 
Net investment gains (losses) included
  in earnings
Unrealized gains (losses) included in
  other comprehensive income (loss)
(15)(37)(2)(18)(72)
Purchases, issuances, sales and
  settlements:
Purchases76 10 95 
Issuances
Sales
Settlements(2)(8)(3)(1)(7)(21)
Transfers into Level 3128 18 24 170 
Transfers out of Level 3(32)(141)(17)(190)
Balance, end of period$318 $585 $41 $60 $290 $166 $1,460 
Changes in unrealized gains
  (losses) relating to Level 3 assets
  and liabilities still held at the end
  of the period included in earnings
$$$$$$$
52
Three Months Ended
September 30, 2017
 Fixed Maturities Equity
Securities
 
Derivatives (1)
   
(In millions)Mortgage-
and
Asset-
Backed
Securities
 Public
Utilities
 Banks/
Financial
Institutions
 Other
Corporate
   Foreign
Currency
Swaps
 Credit
Default
Swaps
 Total 
Balance, beginning of period$188
 $53
 $25
 $77
 $14
 $7
 $2
 $366
 
Realized investment gains (losses) included
   in earnings
0
 0
 0
 0
 0
 8
 (1) 7
 
Unrealized gains (losses) included in other
   comprehensive income (loss)
(2) 0
 0
 1
 0
 0
 0
 (1) 
Purchases, issuances, sales and settlements:                
Purchases0
 24
 0
 25
 4
 0
 0
 53
 
Issuances0
 0
 0
 0
 0
 0
 0
 0
 
Sales0
 0
 0
 (1) 0
 0
 0
 (1) 
Settlements(8) 0
 0
 0
 0
 0
 0
 (8) 
Transfers into Level 30
 0
 0
 0
 0
 0
 0
 0
 
Transfers out of Level 30
 0
 0
 0
 0
 0
 0
 0
 
Balance, end of period$178
 $77
 $25
 $102
 $18
 $15
 $1
 $416
 
Changes in unrealized gains (losses) relating
to Level 3 assets and liabilities still held at
the end of the period included in realized
investment gains (losses)
$0
 $0
 $0
 $0
 $0
 $8
 $(1) $7
 
(1) Derivative assets and liabilities are presented net

Three Months Ended
September 30, 2016
  Fixed Maturities Equity
Securities
Derivatives (1)
   
(In millions)Mortgage-
and
Asset-
Backed
Securities
 Public
Utilities
 Banks/
Financial
Institutions
 Other
Corporate
   Foreign
Currency
Swaps
 Credit
Default
Swaps
 Total 
Balance, beginning of period$252
 $0
 $26
 $0
 $3
 $59
 $1
 $341
 
Realized investment gains (losses) included in
earnings
0
 0
 0
 0
 0
 (18) 2
 (16) 
Unrealized gains (losses) included in other
comprehensive income (loss)
1
 0
 0
 0
 0
 0
 0
 1
 
Purchases, issuances, sales and settlements:                
Purchases0
 0
 0
 0
 0
 0
 0
 0
 
Issuances0
 0
 0
 0
 0
 0
 0
 0
 
Sales0
 0
 0
 0
 0
 0
 0
 0
 
Settlements(13) 0
 0
 0
 0
 0
 0
 (13) 
Transfers into Level 30
 0
 0
 0
 0
 0
 0
 0
 
Transfers out of Level 30
 0
 0
 0
 0
 0
 0
 0
 
Balance, end of period$240
 $0
 $26
 $0
 $3
 $41
 $3
 $313
 
Changes in unrealized gains (losses) relating
to Level 3 assets and liabilities still held at
the end of the period included in realized
investment gains (losses)
$0
 $0
 $0
 $0
 $0
 $(18) $2
 $(16) 

(1) Derivative assets and liabilities are presented net

Nine Months Ended
September 30, 2017
 Fixed Maturities Equity
Securities
 
Derivatives (1)
   
(In millions)Mortgage-
and
Asset-
Backed
Securities
 Public
Utilities
 Banks/
Financial
Institutions
 Other
Corporate
   Foreign
Currency
Swaps
 Credit
Default
Swaps
 Total 
Balance, beginning of period$198
 $16
 $25
 $0
 $3
 $(21) $2
 $223
 
Realized investment gains (losses) included
in earnings
0
 0
 0
 0
 0
 36
 (1) 35
 
Unrealized gains (losses) included in other
comprehensive income (loss)
4
 0
 0
 3
 0
 0
 0
 7
 
Purchases, issuances, sales and settlements:                
Purchases0
 61
 0
 100
 16
 0
 0
 177
 
Issuances0
 0
 0
 0
 0
 0
 0
 0
 
Sales0
 0
 0
 (1) (1) 0
 0
 (2) 
Settlements(24) 0
 0
 0
 0
 0
 0
 (24) 
Transfers into Level 30
 0
 0
 0
 0
 0
 0
 0
 
Transfers out of Level 30
 0
 0
 0
 0
 0
 0
 0
 
Balance, end of period$178
 $77
 $25
 $102
 $18
 $15
 $1
 $416
 
Changes in unrealized gains (losses) relating
to Level 3 assets and liabilities still held at
the end of the period included in realized
investment gains (losses)
$0
 $0
 $0
 $0
 $0
 $36
 $(1) $35
 
(1) Derivative assets and liabilities are presented net

Nine Months Ended
September 30, 2016
 Fixed Maturities Equity
Securities
 
Derivatives (1)
   
(In millions)Mortgage-
and
Asset-
Backed
Securities
 Public
Utilities
 Banks/
Financial
Institutions
 Other
Corporate
   Foreign
Currency
Swaps
 Credit
Default
Swaps
 Total 
Balance, beginning of period$220
 $0
 $26
 $0
 $3
 $(192) $1
 $58
 
Realized investment gains (losses) included
   in earnings
0
 0
 0
 0
 0
 250
 2
 252
 
Unrealized gains (losses) included in other
   comprehensive income (loss)
48
 0
 0
 0
 0
 (16) 0
 32
 
Purchases, issuances, sales and settlements:                
Purchases0
 0
 0
 0
 0
 0
 0
 0
 
Issuances0
 0
 0
 0
 0
 0
 0
 0
 
Sales0
 0
 0
 0
 0
 0
 0
 0
 
Settlements(28) 0
 0
 0
 0
 (1) 0
 (29) 
Transfers into Level 30
 0
 0
 0
 0
 0
 0
 0
 
Transfers out of Level 30
 0
 0
 0
 0
 0
 0
 0
 
Balance, end of period$240
 $0
 $26
 $0
 $3
 $41
 $3
 $313
 
Changes in unrealized gains (losses) relating
to Level 3 assets and liabilities still held at
the end of the period included in realized
investment gains (losses)
$0
 $0
 $0
 $0
 $0
 $250
 $2
 $252
 
(1) Derivative assets and liabilities are presented net

Fair Value Sensitivity


Level 3 Significant Unobservable Input Sensitivity


The following tables summarize the significant unobservable inputs used in the valuation of the Company's Level 3 available-for-sale investments and derivatives.carried at fair value. Included in the tables are the inputs or range of possible inputs that have an effect on the overall valuation of the financial instruments.
September 30, 2017
March 31, 2023March 31, 2023
(In millions) Fair Value Valuation Technique(s) Unobservable Input Range
(Weighted Average)
 (In millions)Fair ValueValuation Technique(s)Unobservable InputRangeWeighted Average
Assets:    Assets:
Securities available for sale, carried at fair value:    Securities available for sale, carried at fair value:
Fixed maturities:   
Fixed maturity securities: Fixed maturity securities:
Mortgage- and asset-backed securities $178
 Consensus pricing Offered quotes N/A
(d) 
Mortgage- and asset-backed securities$418 Consensus pricingOffered quotes82.69-107.62(a)100.39
Public utilities 77
 Discounted cash flow Historical volatility N/A
(d) 
Public utilities350 Discounted cash flowCredit spreads170 bps-268 bps(b)206 bps
Sovereign and supranational Sovereign and supranational37 Consensus pricingOffered quotesN/A(c)N/A
Banks/financial institutions 25
 Consensus pricing Offered quotes N/A
(d) 
Banks/financial institutions161 Discounted cash flowCredit spreads67 bps-188 bps(b)111 bps
Other corporate 102
 Discounted cash flow Historical volatility N/A
(e) 
Other corporate753 Discounted cash flowCredit spreads66 bps-295 bps(b)187 bps
Equity securities 18
 Net asset value Offered quotes $1 - $724 ($6)  Equity securities221 Adjusted costPrivate financialsN/A(d)N/A
Other assets:   
 
Foreign currency swaps 27
 Discounted cash flow Interest rates (USD) 2.29% - 2.53%
(a) 
   Interest rates (JPY) .26% - .86%
(b) 
   CDS spreads 11 - 116 bps 
   Foreign exchange rates 21.00%
(c) 
 45
 Discounted cash flow Interest rates (USD) 2.29% - 2.53%
(a) 
   Interest rates (JPY) .26% - .86%
(b) 
   CDS spreads 11 - 83 bps 
 75
 Discounted cash flow Interest rates (USD) 2.29% - 2.53%
(a) 
   Interest rates (JPY) .26% - .86%
(b) 
   Foreign exchange rates 21.00%
(c) 
Credit default swaps 1
 Discounted cash flow Base correlation 62.73% - 66.88%
(e) 
   CDS spreads 19 bps 
   Recovery rate 37.24% 
Total assets $548
  Total assets$1,940 
(a) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps
(b) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps
(c) Based on 10 year volatility of JPY/USD exchange rate
(d) N/A representsRepresents prices for securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniquestechniques.
(b) Actual or unobservable inputs.equivalent credit spreads in basis points.
(e) Range of base correlation for the Company's bespoke tranche for attachment and detachment points corresponding to market indices.(c) Category represents a single security; range not applicable.

(d) Prices do not utilize credit spreads; therefore, range is not applicable.

September 30, 2017
(In millions) Fair Value Valuation Technique(s) Unobservable Input Range
(Weighted Average)
 
Liabilities:           
  Other liabilities:           
       Foreign currency swaps  $112
  Discounted cash flow Interest rates (USD) 2.29% - 2.53%
(a) 
        Interest rates (JPY) .26% - .86%
(b) 
        CDS spreads 11 - 116 bps 
        Foreign exchange rates 21.00%
(c) 
   11
  Discounted cash flow Interest rates (USD) 2.29% - 2.53%
(a) 
        Interest rates (JPY) .26% - .86%
(b) 
        CDS spreads 9 - 120 bps 
   9
  Discounted cash flow Interest rates (USD) 2.29% - 2.53%
(a) 
        Interest rates (JPY) .26% - .86%
(b) 
        Foreign exchange rates 21.00%
(c) 
            Total liabilities  $132
        

December 31, 2022
(In millions)Fair ValueValuation Technique(s)Unobservable InputRangeWeighted Average
Assets:
  Securities available for sale, carried at fair value:
    Fixed maturity securities:
       Mortgage- and asset-backed securities$343 Consensus pricingOffered quotes97.38-106.71(a)102.98
       Public utilities497 Discounted cash flowCredit spreads128 bps-286 bps(b)192 bps
       Sovereign and supranational37 Consensus pricingOffered quotesN/A(c)N/A
       Banks/financial institutions159 Discounted cash flowCredit spreads67 bps-188 bps(b)113 bps
       Other corporate742 Discounted cash flowCredit spreads66 bps-647 bps(b)191 bps
  Equity securities209 Adjusted costPrivate financialsN/A(d)N/A
            Total assets$1,987 
(a) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps
(b) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps
(c) Based on 10 year volatility of JPY/USD exchange rate

December 31, 2016
(In millions) Fair Value Valuation Technique(s) Unobservable Input Range
(Weighted Average)
 
Assets:           
  Securities available for sale, carried at fair value:           
    Fixed maturities:           
       Mortgage- and asset-backed securities  $198
  Consensus pricing Offered quotes N/A
(d) 
       Public utilities  16
  Discounted cash flow Historical volatility N/A
(d) 
       Banks/financial institutions  25
  Consensus pricing Offered quotes N/A
(d) 
    Equity securities  3
  Net asset value Offered quotes $1-$701 ($8) 
  Other assets:           
       Foreign currency swaps  16
  Discounted cash flow Interest rates (USD) 2.34% - 2.59%
(a) 
        Interest rates (JPY) .22% - .80%
(b) 
        CDS spreads 17 - 172 bps 
        Foreign exchange rates 21.47%
(c) 
   29
  Discounted cash flow Interest rates (USD) 2.34% - 2.59%
(a) 
        Interest rates (JPY) .22% - .80%
(b) 
        CDS spreads 16 - 88 bps 
   80
  Discounted cash flow Interest rates (USD) 2.34% - 2.59%
(a) 
        Interest rates (JPY) .22% - .80%
(b) 
        Foreign exchange rates 21.47%
(c) 
       Credit default swaps  2
  Discounted cash flow Base correlation     52.18% - 56.07%
(e) 
        CDS spreads 54 bps 
        Recovery rate 36.69% 
            Total assets  $369
        
(a) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps
(b) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps
(c) Based on 10 year volatility of JPY/USD exchange rate
(d) N/A representsRepresents prices for securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.
(e) Range of base correlation for the Company's bespoke tranche for attachment and detachment points corresponding to market indices


December 31, 2016 
(In millions) Fair Value Valuation Technique(s) Unobservable Input Range
(Weighted Average)
 
Liabilities:           
  Other liabilities:           
       Foreign currency swaps  $113
  Discounted cash flow Interest rates (USD) 2.34% - 2.59%
(a) 
        Interest rates (JPY) .22% - .80%
(b) 
        CDS spreads 17 - 172 bps 
        Foreign exchange rates 21.47%
(c) 
   23
  Discounted cash flow Interest rates (USD) 2.34% - 2.59%
(a) 
        Interest rates (JPY) .22% - .80%
(b) 
        CDS spreads 24 - 216 bps 
   10
  Discounted cash flow Interest rates (USD) 2.34% - 2.59%
(a) 
        Interest rates (JPY) .22% - .80%
(b) 
        Foreign exchange rates 21.47%
(c) 
            Total liabilities  $146
        
(a) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swapstechniques.
(b) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swapsActual or equivalent credit spreads in basis points.
(c) Based on 10 year volatility of JPY/USD exchange rateCategory represents a single security; range not applicable.

(d) Prices do not utilize credit spreads; therefore, range is not applicable

53




The following is a discussion of the significant unobservable inputs or valuation techniques used in determining the fair value of securities and derivatives classified as Level 3.


Net Asset ValueCredit Spreads


The Company holds certain unlisted equity securities whose fair value is derived based on the financial statements published by the investee. These securitiesassets that are of a unique, specialized, and/or securitized nature that do not trade on a regular basis in an active market, which makes their fair values difficult to estimate. Most of these assets are managed by external asset managers and the valuations derivedCompany utilizes these managers for their expertise when evaluating various inputs used to determine the fair values for these assets, including identifying the appropriate credit or risk spread over risk-free interest rates that incorporates the unique nature or structure of the asset in the valuations. For those assets of a similar nature but not managed by external asset managers, the Company internally estimates the spreads and risk adjustments over risk-free interest rates that reflect the unique nature or structure of the asset as well as the current pricing environment and market conditions for comparable or related investments. Credit or risk spreads are dependentan important input needed to complete the discounted cash flow analyses used to estimate an investment’s fair value. Credit or risk spreads underlying these fair values are a significant, unobservable input whose derivation is based on the availabilityCompany’s evaluation of timely financial reportinga combination of the investee. Net asset value is an unobservable input inexternal manager’s expertise and knowledge, the determination of fair value ofequity securities.current pricing environment, and market conditions for the specific asset.


Offered Quotes


In circumstances where the Company's valuation model price is overridden because it implies a value that is not consistent with current market conditions, the Company will solicit bids from a limited number of brokers. The Company also receives unadjusted prices from brokers for certain of its mortgage and asset-backed securities. These quotes are non-binding but are reflective of valuation best estimates at that particular point in time. Offered quotes are an unobservable input in the determination of fair value of mortgage- and asset-backed securities, certain banks/financial institutions, certain other corporate, and equity securities investments.


Interest Rates, CDS Spreads, Foreign Exchange RatesPrivate Financials


The significant drivers of the valuation of the interest and foreign exchange swaps are interest rates, foreign exchange rates and CDS spreads. The Company's swaps have long maturities that increase the sensitivity of the swaps to interest rate fluctuations. Since most of the Company's yen-denominated cross currency swaps are in a net liability position, an increase in interest rates will decrease the liabilities and increase the value of the swap.
Foreign exchange swaps also have a lump-sum final settlement of foreign exchange principal receivables at the termination of the swap. An increase in yen interest rates will decrease the value of the final settlement foreign exchange receivables and decrease the value of the swap, and an increase in U.S. dollar interest rates will increase the swap value.
A similar sensitivity pattern is observed for the foreign exchange rates. When the spot U.S. dollar/Japanese yen (USD/JPY) foreign exchange rate decreases and the swap is receiving a final exchange payment in JPY, the swap value will increase due to the appreciation of the JPY. Most of the Company's swaps are designed to receive payments in JPY at the termination and will thus be impacted by the USD/JPY foreign exchange rate in this way. In cases where there is no final foreign exchange receivable in JPY and the Company is paying JPY as interest payments and receiving USD, a decreaseinvests in the foreign exchange rate will lead to a decreasedebt and equity securities of private companies operating in the swap value.

cancer, healthtech, insurtech, finance, internet of things, big data and analytics sectors. Due to their private and often small, startup nature, these companies rely on capital provided by institutional and private equity investors for their ongoing operations. They do not have public securities that trade on a regular basis in an active market, which makes their fair values difficult to estimate. The extinguisher feature in most ofCompany values these investments on a cost basis with appropriate adjustments made based on monitoring private financial information provided by these companies. Adjustments to valuations are generally made as new funding tranches are executed or if the Company's VIE swaps results infinancial information provided significantly changes indicating the need for impairment. This private financial information is unobservable and is a cessation of cash flows and no further payments between the parties to the swapsignificant determinant in the event of a default on the referenced or underlying collateral. To price this feature, the Company applies the survival probability of the referenced entity to the projected cash flows. The survival probability uses the CDS spreads and recovery rates to adjust the present value of the cash flows. For extinguisher swaps with positive values, an increase in CDS spreads decreases the likelihood of receiving the final exchange payments and reduces the value of the swap.

Base Correlations, CDS Spreads, Recovery Rates

The Company's remaining collateralized debt obligation (CDO) is a tranche on a basket of single-name credit default swaps. The risk in this synthetic CDO comes from the single-name CDS risk and the correlations between the single names. The valuation of synthetic CDOs is dependent on the calibration of market prices for interest rates, single name CDS default probabilities and base correlation using financial modeling tools. Since there is limited or no observable data available for this tranche, the base correlations must be obtained from commonly traded market tranches such as the CDX and iTraxx indices. From the historical prices of these indices, base correlations can be obtained to develop a pricing curve of CDOs with different seniorities. Since the reference entities of the market indices do not match those in the portfolio underlying the synthetic CDO to be valued, several processing steps are taken to map the CDO in the Company's portfolio to the indices. With the base correlation determined and the appropriate spreads selected, a valuation is calculated. An increase in the CDS spreads in the underlying portfolio leads to a decrease in the value due to higher probability of defaults and losses. The impact on the valuation due to base correlation depends on a number of factors, including the riskiness between market tranches and the modeled tranche based on the Company's portfolio and the equivalence between detachment points in these tranches. Generally speaking, an increase in base correlation will

decrease the value of the senior tranches while increasing the value of junior tranches. This may result in a positive or negative value change.

The CDO tranche in the Company's portfolio is a senior mezzanine tranche and, due to the low level of credit support for this type of tranche, exhibits equity-like behavior. As a result, an increase in recovery rates tends to cause its value to decrease.

Base correlations, CDS spreads, and recovery rates are unobservable inputs in the determination of fair value of credit default swaps.these corporate venture investments.


For additional information on the Company's investments and financial instruments, see the accompanying Notes 1, 3 and 4 and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.


6.     DEFERRED POLICY ACQUISITION COSTS

The following tables present a rollforward of deferred policy acquisition costs by reporting segment and disaggregated by product type.

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March 31, 2023
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOtherTotal
Deferred policy acquisition costs:
Balance at December 31, 2022$3,035 $2,161 $525 $55 $904 $613 $1,304 $418 $88 $135 $1 $9,239 
Capitalization76 33 9 4 39 31 41 21 2 14 0 270 
Amortization expense(48)(28)(9)0 (34)(28)(34)(16)(3)(6)1 (205)
Foreign currency translation and
  other
(19)(13)(3)(1)0 0 0 0 0 0 (1)(37)
Balance at March 31, 2023$3,044 $2,153 $522 $58 $909 $616 $1,311 $423 $87 $143 $1 $9,267 
December 31, 2022
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOtherTotal
Deferred policy acquisition costs:
Balance at December 31, 2021$3,464 $2,372 $595 $51 $887 $604 $1,270 $399 $90 $115 $$9,848 
Capitalization291 161 33 12 147 117 160 80 11 40 1,052 
Amortization expense(188)(112)(35)(3)(130)(108)(126)(61)(13)(20)(792)
Foreign currency translation and
  other
(532)(260)(68)(5)(4)(869)
Balance at December 31, 2022$3,035 $2,161 $525 $55 $904 $613 $1,304 $418 $88 $135 $$9,239 

The Company uses the following constant level bases to amortize deferred policy acquisition costs:
6.Policy TypePOLICY LIABILITIESConstant-level Basis
Life Products (U.S.)Face Value
Health Products (U.S.)Policy Count
Health & Life Products (Japan)Units in Force

Changes
Face value is the stated dollar amount that the policy’s beneficiaries receive upon the death of the insured. For life and health products issued in Japan, the constant-level basis used is units in force, which is a proxy for face amount and insurance in force, respectively. Future DAC amortization is impacted by persistency.

There were no changes to the inputs, judgements, assumptions and methods used to determine amortization amounts during the three-month periods ended March 31, 2023 and 2022.

See Note 1 of the Notes to the Consolidated Financial Statements for more information on deferred policy acquisition costs.
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7.    POLICY LIABILITIES

Future Policy Benefits

The liability for future policy benefits is determined as the present value of future benefits to be paid to or on the behalf of policyholders and certain related expenses less the present value of future net premiums receivable under the Company's insurance contracts, where future net premiums receivable are future gross premiums receivable under the contract multiplied by the NPR.

The following tables present the changes in the present value of expected net premiums and the present value of expected future policy benefits by reporting segment and disaggregated by product type.
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March 31, 2023
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Present value of expected premiums:
Balance at December 31, 2022$19,298 $16,714 $7,485 $1,256 $2,534 $1,635 $4,486 $1,220 $211 $724 $110 
Beginning balance at original discount rate18,221 16,195 7,284 1,242 2,760 1,775 5,050 1,365 231 799 118 
Effect of changes in cash flow assumptions0 0 0 0 0 0 0 0 0 0 0 
Effect of actual variances from expected
   experience
(120)(25)(14)(2)(48)(20)(104)(39)(7)(4)(1)
Adjusted beginning of period balance18,101 16,170 7,270 1,240 2,712 1,755 4,946 1,326 224 795 117 
Issuances229 104 111 8 117 120 192 103 10 49 14 
Interest accrual111 92 33 5 25 15 46 11 2 7 1 
Net premiums earned (1)
(420)(344)(286)(31)(118)(95)(147)(62)(10)(33)(4)
Foreign currency translation(109)(100)(44)(8)0 0 0 0 0 0 0 
Other0 0 0 0 0 0 0 0 2 4 9 
Ending balance at original discount rate17,912 15,922 7,084 1,214 2,736 1,795 5,037 1,378 228 822 137 
Effect of changes in discount rate assumptions1,542 1,045 319 42 (173)(112)(444)(117)(15)(60)(6)
Balance at March 31, 2023$19,454 $16,967 $7,403 $1,256 $2,563 $1,683 $4,593 $1,261 $213 $762 $131 
Present value of expected future policy benefits:
Balance at December 31, 2022$54,766 $27,419 $31,954 $5,582 $3,098 $2,445 $11,489 $2,074 $488 $1,526 $622 
Beginning balance at original discount rate47,677 27,566 32,800 5,940 3,391 2,636 12,846 2,300 532 1,778 624 
Effect of changes in cash flow assumptions0 0 0 0 0 0 0 0 0 0 0 
Effect of actual variances from expected
   experience
(136)(24)(14)0 (55)(24)(120)(48)(9)(6)(2)
Adjusted beginning of period balance47,541 27,542 32,786 5,940 3,336 2,612 12,726 2,252 523 1,772 622 
Issuances232 108 112 9 124 127 201 111 12 53 13 
Interest accrual396 163 166 27 31 23 133 21 5 16 8 
Benefit payments(825)(367)(493)(61)(115)(118)(224)(69)(15)(29)(11)
Foreign currency translation(295)(171)(201)(35)0 0 0 0 0 0 0 
Other0 0 0 0 0 0 0 0 2 4 9 
Ending balance at original discount rate47,049 27,275 32,370 5,880 3,376 2,644 12,836 2,315 527 1,816 641 
Effect of changes in discount rate assumptions8,750 1,164 344 (110)(227)(149)(1,019)(176)(33)(210)15 
Balance at March 31, 202355,799 28,439 32,714 5,770 3,149 2,495 11,817 2,139 494 1,606 656 
Net liability for future policy benefits36,345 11,472 25,311 4,514 586 812 7,224 878 281 844 525 
Less: reinsurance recoverable0 1,643 0 0 0 0 0 0 0 10 0 
Net liability for future policy benefits after
   reinsurance recoverable
$36,345 $9,829 $25,311 $4,514 $586 $812 $7,224 $878 $281 $834 $525 
(1) Net premiums earned represent the portion of gross premiums collected from policyholders that is used to fund expected benefit payments.
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December 31, 2022
Aflac JapanAflac U.S.
(In millions)CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Present value of expected premiums:
Balance at December 31, 2021$25,893 $21,174 $10,847 $1,586 $3,283 $1,862 $6,023 $1,467 $264 $834 $153 
Beginning balance at original discount rate22,470 18,681 10,064 1,461 2,999 1,760 5,391 1,380 241 780 135 
Effect of changes in cash flow assumptions(639)317 (494)25 (52)(38)42 10 (1)(12)
Effect of actual variances from expected
   experience
(284)61 (81)(10)(152)(43)(421)(111)(20)(16)
Adjusted beginning of period balance21,547 19,059 9,489 1,476 2,795 1,722 4,932 1,311 231 763 129 
Issuances947 639 221 62 355 384 537 273 33 146 
Interest accrual459 364 146 22 105 57 193 45 27 
Net premiums earned (1)
(1,734)(1,376)(1,229)(123)(496)(382)(612)(261)(42)(131)(17)
Foreign currency translation(2,997)(2,488)(1,343)(195)
Other(1)(3)(6)(3)(6)
Ending balance at original discount rate18,221 16,195 7,284 1,242 2,760 1,775 5,050 1,365 231 799 118 
Effect of changes in discount rate assumptions1,077 519 201 14 (226)(140)(564)(145)(20)(75)(8)
Balance at December 31, 2022$19,298 $16,714 $7,485 $1,256 $2,534 $1,635 $4,486 $1,220 $211 $724 $110 
Present value of expected future policy benefits:
Balance at December 31, 2021$72,747 $36,021 $42,720 $7,322 $3,949 $2,871 $15,388 $2,552 $616 $1,843 $837 
Beginning balance at original discount rate56,807 31,398 39,002 6,787 3,594 2,670 13,079 2,300 549 1,694 645 
Effect of changes in cash flow assumptions(721)352 (550)96 (70)(43)40 13 (1)(15)
Effect of actual variances from expected
   experience
(333)83 (91)(10)(177)(48)(465)(130)(23)(21)
Adjusted beginning of period balance55,753 31,833 38,361 6,873 3,347 2,627 12,571 2,210 539 1,672 637 
Issuances960 646 222 68 364 397 550 282 34 149 
Interest accrual1,599 642 670 106 128 94 539 85 21 62 32 
Benefit payments(3,050)(1,375)(1,248)(202)(456)(483)(823)(277)(62)(103)(45)
Foreign currency translation(7,585)(4,180)(5,205)(905)
Other(2)
Ending balance at original discount rate47,677 27,566 32,800 5,940 3,391 2,636 12,846 2,300 532 1,778 624 
Effect of changes in discount rate assumptions7,089 (147)(846)(358)(293)(191)(1,357)(226)(44)(252)(2)
Balance at December 31, 202254,766 27,419 31,954 5,582 3,098 2,445 11,489 2,074 488 1,526 622 
Net liability for future policy benefits35,468 10,705 24,469 4,326 564 810 7,003 854 277 802 512 
Less: reinsurance recoverable1,579 
Net liability for future policy benefits after
   reinsurance recoverable
$35,468 $9,126 $24,469 $4,326 $564 $810 $7,003 $854 $277 $793 $512 
(1) Net premiums earned represent the portion of gross premiums collected from policyholders that is used to fund expected benefit payments.




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The following tables present the weighted-average interest rates and weighted-average liability duration (calculated using the original discount rate) by reporting segment and disaggregated by product type.
March 31, 2023
Aflac JapanAflac U.S.
CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Weighted-average interest, original discount rate (1)
3.9 %2.6 %2.1 %1.8 %3.9 %4.2 %4.6 %4.4 %4.3 %3.7 %5.4 %
Weighted-average interest, current discount rate (1)
1.7 %2.2 %1.7 %2.0 %5.0 %5.0 %5.1 %5.1 %5.0 %5.0 %5.1 %
Weighted-average liability duration (years)13.726.717.318.08.55.611.89.68.012.99.5
(1) The weighted-average interest rates are calculated using the reserve balances as the weights. No adjustments were made to observable market information.

December 31, 2022
Aflac JapanAflac U.S.
CancerMedical and Other HealthLife InsuranceOtherAccidentDisabilityCritical CareHospital IndemnityDental/VisionLife InsuranceOther
Weighted-average interest, original discount rate (1)
4.1 %2.6 %2.1 %1.8 %3.8 %4.2 %4.6 %4.4 %4.3 %3.7 %5.4 %
Weighted-average interest, current discount rate (1)
1.6 %2.2 %1.6 %1.9 %4.8 %4.7 %4.8 %4.8 %4.8 %4.8 %4.8 %
Weighted-average liability duration (years)13.726.917.318.28.55.612.09.48.113.19.6
(1) The weighted-average interest rates are calculated using the reserve balances as the weights. No adjustments were made to observable market information.
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The following table presents a reconciliation of the disaggregated rollforwards above to the ending future policy benefits presented in the Consolidated Balance Sheets. The deferred profit liability for limited-payment contracts and the deferred profit liability for reinsurance is presented together with the liability for unpaidfuture policy claimsbenefits in the Consolidated Balance Sheets and has been included as a reconciling item in the table below.
(In millions)March 31,
2023
December 31, 2022
Balances included in future policy benefits rollforward:
Aflac Japan
Cancer$36,345 $35,468 
Medical and other health11,472 10,705 
Life insurance25,311 24,469 
Other4,514 4,326 
Aflac U.S.
Accident586 564 
Disability812 810 
Critical care7,224 7,003 
Hospital indemnity878 854 
Dental/vision281 277 
Life insurance844 802 
Other525 512 
Corporate and other31 19 
Deferred profit liability - limited-payment contracts1,788 1,740 
Deferred profit liability - reinsurance682 692 
Total$91,293 $88,241 

Discount rates are determined using upper-medium grade (low-credit-risk) fixed-income instrument yields that reflect the duration characteristics of the liability. Locked-in discount rates are determined as a weighted average of monthly upper-medium grade (low-credit-risk) fixed-income instrument forward curves, where the weights are the annualized premiums issued for each month of the cohort. Discount rates are updated each reporting period and require estimation techniques (e.g., interpolation, extrapolation) for determination of points on the curve for which there is limited or no observable market data.

More specifically, the Company constructs a discount rate curve separately for discounting cash flows used to calculate each of the Japan and U.S. liabilities for future policy benefits, reflective of the characteristics of the corresponding insurance liabilities, such as currency and tenor.

In the Aflac Japan segment, all long-duration insurance policies are denominated in yen. A significant portion of policies are characterized by tenors exceeding the availability of liquid market data in Japan for single-A rated (as a proxy for upper-medium grade) corporate yen-denominated debt. The discount rate curve is designed to prioritize the observable inputs where available, while past the last liquid point, the data is derived based on estimation techniques consistent with the fair value guidance in ASC 820. The Aflac Japan segment curve utilizes liquid market indices tracking publicly traded yen-denominated single-A corporate debt for the initial 10-year tenor. For the bonds within these market indices where only local ratings are available, the Company prioritizes the bonds with local ratings that are equivalent to a single-A rating based on international rating standards.

For the discount rates applicable to tenors for which the Japan single-A debt market is not liquid but there is sufficient observable market data and/or the observable market data is available for similar instruments (between 10 and 30 years), the Company estimates tenor-specific single-A credit spreads and applies them to risk-free government rates. Lastly, for the tenors where there is limited or no observable single-A or similar market data or risk-free government rates (beyond 30 years), the discount curve is derived by extrapolation of risk free rates beyond their last liquid point following the Smith-Wilson method and grading of the estimated forward credit spread anchored by the ultimate forward rate. The ultimate forward rate is based on the economic value-based solvency regime, which is consistent with the International Association of Insurance Supervisors (IAIS) Insurance Capital Standards (ICS) (which is expected to be introduced in Japan in 2025), and is adjusted for credit and inflation components.
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For the Aflac U.S. segment where all long-duration insurance policies are denominated in U.S. dollar and substantially all have cash flow duration within 30 years, for which the U.S. upper-medium grade fixed-income market is liquid and observable, the Company uses data from a liquid fixed-income market index tracking single-A U.S. corporate debt. For the insignificant portion of the policies with cash flow tenors exceeding 30 years, the discount curve beyond that tenor is extrapolated following the Smith-Wilson method from year 30 to the same ultimate forward rate calculated for the Japan discount curve at year 60 and held constant thereafter. The use of the same ultimate rate for U.S. and Japan segments is based on the assumption of long-term global economic convergence.

For the three-month periods ended March 31, 2023 and 2022, the Company recognized $(2.8) billion and $4.2 billion in other comprehensive income (loss) net of tax, respectively, due to changes in the future policy benefits estimate from updating the discount rate assumptions. There were no changes to the methods used to determine the discount rates during the three-month periods ended March 31, 2023 and 2022.

For the year ended December 31, 2022, the Company recognized $13.7 billion in other comprehensive income (loss) net of tax, due to changes in the future policy benefits estimate from updating the discount rate assumptions. There were no changes to the methods used to determine the discount rates during the year ended December 31, 2022.

Mortality rate assumptions are based on industry tables and adjusted for the Company's actual or expected experience where credible or appropriate. These assumptions typically will vary by age, gender, and other demographic characteristics such as follows:smoking status.

 Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions) 2017 2016   2017 2016  
Unpaid supplemental health claims, beginning of period $3,872
 $3,941
   $3,707
 $3,548
  
Less reinsurance recoverables 30
 30
   27
 26
  
Net balance, beginning of period 3,842
 3,911
   3,680
 3,522
  
Add claims incurred during the period related to:            
Current year 1,759
 1,843
   5,278
 5,309
  
Prior years (126) (148)   (386) (374)  
Total incurred 1,633
 1,695
   4,892
 4,935
  
Less claims paid during the period on claims incurred during:            
Current year 1,357
 1,462
   3,074
 3,160
  
Prior years 234
 232
   1,697
 1,722
  
Total paid 1,591
 1,694
   4,771
 4,882
  
Effect of foreign exchange rate changes on unpaid claims (14) 42
   69
 379
  
Net balance, end of period 3,870
 3,954
   3,870
 3,954
  
Add reinsurance recoverables 30
 31
   30
 31
  
Unpaid supplemental health claims, end of period 3,900
 3,985
   3,900
 3,985
  
Unpaid life claims, end of period 468
 361
   468
 361
  
Total liability for unpaid policy claims $4,368
 $4,346
   $4,368
 $4,346
  
Morbidity assumptions are based on the Company's internal data and consider emerging experience. These assumptions are reflective of the coverage and benefits provided and generally vary by age, gender, duration, and any other material policyholder characteristics. In cases where a calendar-year trend is significant, future cash flow projections may include a trend adjustment.


In Japan, separate lapse assumptions are set based on actual or expected experience. These lapse and total termination rate assumptions will vary by line of business and with policyholder characteristics such as duration. In the U.S., the majority of the future cash flows are modeled using total termination rates (which include both lapse and mortality) and are adjusted for actual experience. Policy provisions, such as reaching premium paid-up status, are taken into account when setting assumptions.

During the three-month periods ended March 31, 2023 and 2022, the Company's adjustment for actual variances from expected experience resulted in reserve remeasurement gains of $53 million and $34 million in the consolidated statement of earnings, respectively. The incurred claims development relatedvariance of actual experience from expected experience was primarily due to prior years reflectsfavorable variances in morbidity assumptions as compared to actual experience. There were no changes to the inputs, judgments, assumptions and methods used in measuring the liability for future policy benefits during the three-month periods ended March 31, 2023 and 2022.

In 2022, the Company's annual review process resulted in favorable changes to its morbidityassumptions due to favorable claims experience, comparedprimarily. This, together with previous estimates, primarilythe variance of actual experience from expected experience, resulted in reserve remeasurement gains of $215 million in the Company'sconsolidated statement of earnings for the year ended December 31, 2022.

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The following table summarizes the amount of net earned premiums recognized in the Consolidated Statements of Earnings by reporting segment and disaggregated by product type.
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums:
Aflac Japan
Cancer$1,132 $1,336 
Medical and other health689 828 
Life insurance399 524 
Other39 44 
Aflac U.S.
Accident329 337 
Disability309 296 
Critical care443 446 
Hospital indemnity184 185 
Dental/vision53 49 
Life insurance115 99 
Other10 10 
Corporate and other90 42 
Reinsurance ceded(104)(117)
Total$3,688 $4,079 

The following table summarizes the amount of interest expense related to insurance contracts recognized in total benefits and claims, net in the Consolidated Statements of Earnings by reporting segment and disaggregated by product type.
  
Three Months Ended March 31,
(In millions)20232022
Interest expense:
Aflac Japan
Cancer$285 $329 
Medical and other health71 80 
Life insurance133 149 
Other22 24 
Aflac U.S.
Accident6 
Disability8 
Critical care87 86 
Hospital indemnity10 10 
Dental/vision3 
Life insurance9 
Other7 
Corporate and other0 
Total$641 $710 

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The following tables summarize the amount of undiscounted expected future gross premiums and expected future benefits and expenses and discounted (discounted at the current period discount rate) expected future gross premiums and expected future benefits and expenses by reporting segment and disaggregated by product type. Future gross premiums represent the expected amount of future premiums to be received. For limited-payment policies, the premiums are collected over a shorter period than the policy term over which benefits are provided. As a result, once the policy reaches premium paid-up status, the future gross premiums can be significantly less than the future benefit payments. Further, benefits and expenses are generally greater in the later years of a policy. These are the primary factors that result in future gross premiums lower than future benefit and expense payments for certain lines of business in Japan. The favorable claims development of $386 millionthe Company.
March 31, 2023December 31, 2022
(In millions)Gross
Premiums
Benefits and ExpensesGross PremiumsBenefits and Expenses
Undiscounted expected future gross premiums
  and expected future benefits and expenses:
Aflac Japan
Cancer$74,863 $83,549 $75,529 $84,246 
Medical and other health50,153 50,573 50,720 50,778 
Life insurance16,690 52,993 16,946 53,271 
Other2,309 9,379 2,322 9,433 
Aflac U.S.
Accident9,467 4,621 9,481 4,636 
Disability5,889 3,286 5,858 3,267 
Critical care21,134 22,085 21,069 22,113 
Hospital indemnity5,213 3,360 5,164 3,338 
Dental/vision1,194 754 1,208 759 
Life insurance2,466 2,871 2,375 2,787 
Other359 1,165 333 1,147 
Total$189,737 $234,636 $191,005 $235,775 


March 31, 2023December 31, 2022
(In millions)Gross PremiumsBenefits and ExpensesGross PremiumsBenefits and Expenses
Discounted expected future gross premiums
  and expected future benefits and expenses:
Aflac Japan
Cancer$53,806 $55,799 $53,278 $54,766 
Medical and other health35,030 28,439 34,693 27,419 
Life insurance12,875 32,714 12,951 31,954 
Other1,712 5,770 1,697 5,582 
Aflac U.S.
Accident6,625 3,149 6,510 3,098 
Disability4,554 2,495 4,468 2,445 
Critical care13,013 11,817 12,659 11,489 
Hospital indemnity3,592 2,139 3,483 2,074 
Dental/vision826 494 821 488 
Life insurance1,756 1,606 1,663 1,526 
Other252 656 228 622 
Total$134,041 $145,078 $132,451 $141,463 

63


Loss expense as a result of net premium ratio capping for the nine-month periodthree-month periods ended September 30, 2017 comprises approximately $301 million from Japan, which represents approximately 78%March 31, 2023 and 2022 was immaterial.

Other Policyholders' Funds

As of March 31, 2023 and December 31, 2022, the largest component of the total. Excludingother policyholders' funds liability was the impactCompany's annuity line of foreign exchange of a loss of approximately $13 million from December 31, 2016 to September 30, 2017, the favorable claims developmentbusiness in Japan would have been approximately $315 million, representing approximately 82% of the total.

The Company has experienced continued favorable claim trends in 2017 for its core health products inAflac Japan. The Company's experienceannuities have fixed benefits and premiums.

The following table presents the changes in other policyholders’ funds.
(In millions)March 31,
2023
December 31, 2022
Other policyholders' funds:
Fixed annuities account balance, beginning of period (1)
$6,423 $7,410 
Premiums received39 150 
Transfers from WAYS conversions58 214 
Surrenders and withdrawals(14)(52)
Benefit payments(104)(367)
Interest credited14 57 
Foreign currency translation and other(40)(989)
Fixed annuities account balance, end of period6,376 6,423 
Other deposit type reserves292 220 
Total$6,668 $6,643 
(1) Aflac Japan relatedfixed annuities

The following table presents other policyholders’ funds balances by range of guaranteed crediting rates.
March 31, 2023December 31, 2022
(In millions)
Range of Guaranteed Minimum Crediting Rates (2)
At Guaranteed MinimumCash Surrender Value
Range of Guaranteed Minimum Crediting Rates (2)
At Guaranteed MinimumCash Surrender Value
Fixed annuities (1)
0.5% - 2.3%$6,376$6,2810.5% - 2.3%$6,423$6,326
(1) Aflac Japan fixed annuities
(2) Weighted-average crediting rate of 1.5% at March 31, 2023 and December 31, 2022, respectively.

Aflac Japan’s fixed annuities have guaranteed fixed crediting rates which results in the policyholders' funds balances being able to cover all guaranteed benefit amounts. The reserves are adequate to fully fund future benefits at any given time.

See Note 1 of the Notes to the average length of stay in the hospitalConsolidated Financial Statements for cancer treatment has shown continued decline in the current period. In addition, cancer treatment patterns in Japan are continuing to be influenced by significant advances in early-detection techniques and by the increased use of pathological diagnosis rather than clinical exams. Additionally, follow-up radiation and chemotherapy treatments are occurring more oftenadditional information on an outpatient basis. Such changes in treatment not only increase the quality of life and initial outcomes for the patients, but also decrease the average length of each hospital stay, resulting in favorable claims development.policy liabilities.



7.REINSURANCE

8.    REINSURANCE

The Company periodically enters into fixed quota-share coinsurance agreements with other companies in the normal course of business. For each of its reinsurance agreements, the Company determines whether the agreement provides indemnification against loss or liability relating to insurance risk in accordance with applicable accounting standards. Reinsurance premiums and benefits paid or provided are accounted for on bases consistent with those used in accounting for the original policies issued and the terms of the reinsurance contracts. Premiums and benefits are reported net of insurance ceded.


In January 2023, ALIJ entered into a coinsurance transaction whereby it ceded 28% of the liabilities associated with certain cancer insurance policies and riders to Aflac Re. This transaction transferred approximately $2.1 billion of reserves associated with these policies. Approximately $1.9 billion of assets were transferred from ALIJ to Aflac Re as preliminary consideration for assuming the reinsurance risk, and final settlement is expected in the second quarter of 2023. This internal reinsurance transaction with Aflac Re has no financial statement impact on a consolidated basis, except for the effect of foreign currency accounting.

64


In January 2023, ALIJ also entered into an external coinsurance transaction to cede 1.5% of the liabilities associated with the same cancer insurance policies and riders, in connection with which ALIJ transferred cash consideration to the reinsurer.

The Company has recorded a deferred profit liability related to reinsurance transactions. The remaining deferred profit liability of $942$682 million and $692 million as of September 30, 2017,March 31, 2023 and December 31, 2022, respectively, is included in future policy benefits in the consolidated balance sheet and is being amortized into income over the expected lives of the policies. The Company has also recorded a reinsurance recoverable for reinsurance transactions, which is included in other assets in the consolidated balance sheet and had a remaining balance of $906 million$1.1 billion and $860$912 million as of September 30, 2017,March 31, 2023 and December 31, 2016,2022, respectively. The increase in the reinsurance recoverable balance was driven by two aggregating factors: yen strengthening and the growth in reserves related to the business that has been reinsured as the policies age. The spot yen/dollar exchange rate strengthened by approximately 3%and ceded reserves increased approximately 2% from December 31, 2016, to September 30, 2017.


The following table reconciles direct premium incomepremiums and direct benefits and claims to net amounts after the effect of reinsurance which also includes the elimination of inter-segment amounts associated with affiliated reinsurance.
Three Months Ended March 31,
(In millions)20232022
Direct earned premiums$3,738 $4,115 
Ceded to other companies:
    Ceded Aflac Japan closed blocks(82)(98)
    Other(25)(19)
Assumed from other companies:
    Retrocession activities34 41 
    Other23 40 
Net earned premiums$3,688 $4,079 
Direct benefits and claims, excluding reserve remeasurement$2,256 $2,334 
Reserve remeasurement (gains) losses(53)(34)
Total direct benefits and claims2,203 2,300 
Ceded benefits and change in reserves for future benefits:
    Ceded Aflac Japan closed blocks(100)(88)
    Eliminations14 
    Other(18)(5)
Assumed from other companies:
    Retrocession activities5 37 
    Eliminations10 (5)
    Other36 239 
Total benefits and claims, net$2,150 $2,483 
 Three Months Ended
September 30,
 Nine Months Ended
September 30,
(In millions)2017 2016 2017 2016
Direct premium income $4,734
   $5,119
   $14,210
   $14,724
 
Ceded to other companies:               
    Ceded Aflac Japan closed blocks (130)   (148)   (390)   (423) 
    Other (12)   (13)   (37)   (37) 
Assumed from other companies:               
    Retrocession activities 54
   62
   163
   177
 
    Other 2
   2
   5
   6
 
Net premium income $4,648
   $5,022
   $13,951
   $14,447
 
                
Direct benefits and claims $3,157
   $3,463
   $9,403
   $9,898
 
Ceded benefits and change in reserves for future benefits:               
    Ceded Aflac Japan closed blocks (118)   (135)   (359)   (385) 
    Eliminations 13
   16
   39
   44
 
    Other (9)   (10)   (31)   (26) 
Assumed from other companies:               
    Retrocession activities 53
   59
   159
   168
 
    Eliminations (13)   (16)   (39)   (44) 
    Other 0
   1
   2
   2
 
Benefits and claims, net $3,083
   $3,378
   $9,174
   $9,657
 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.


These reinsurance transactions are indemnity reinsurance that do not relieve the Company from its obligations to policyholders. In the event that the reinsurer is unable to meet their obligations, the Company remains liable for the reinsured claims.


As a part of its capital contingency plan, the Company entered into a committed reinsurance facility agreement on December 1, 2015, in the amountwith reserves of approximately 110¥120 billion yen.as of March 31, 2023. This reinsurance facility agreement was renewed in 20162022 and is effective until December 31, 2017.2023. There are also additional commitment periods of a one-year duration, each of which are automatically extended unless notification is received from the reinsurer within 60 days prior to the expiration.

The reinsurer can withdraw from the committed facility if Aflac‘sAflac's Standard and Poor's (S&P) rating drops below BBB-. As of September 30, 2017,March 31, 2023, the Company has not executed a reinsurance treaty under this committed reinsurance facility.
65
8.NOTES PAYABLE



9.    NOTES PAYABLE AND LEASE OBLIGATIONS

A summary of notes payable and lease obligations follows:
(In millions)September 30, 2017 December 31, 2016
2.65% senior notes paid February 2017 $0
   $649
 
2.40% senior notes due March 2020 545
   547
 
4.00% senior notes due February 2022 346
   348
 
3.625% senior notes due June 2023 694
   696
 
3.625% senior notes due November 2024 743
   745
 
3.25% senior notes due March 2025 445
   445
 
2.875% senior notes due October 2026 298
   298
 
6.90% senior notes due December 2039 221
   220
 
6.45% senior notes due August 2040 256
   254
 
4.00% senior notes due October 2046 394
   394
 
5.50% subordinated debentures due September 2052 494
   486
 
Yen-denominated senior notes:       
.932% senior notes due January 2027 (principal amount 60.0 billion yen) 529
   0
 
Yen-denominated loans:       
Variable interest rate loan due September 2021 (.31% in 2017 and 2016, principal amount 5.0 billion yen) 44
   43
 
Variable interest rate loan due September 2023 (.46% in 2017 and 2016, principal amount 25.0 billion yen) 221
   214
 
Capitalized lease obligations payable through 2024 18
   21
 
Total notes payable $5,248
   $5,360
 
(In millions)March 31,
2023
December 31,
2022
1.125% senior sustainability notes due March 2026$398 $397 
2.875% senior notes due October 2026298 298 
3.60% senior notes due April 2030992 992 
6.90% senior notes due December 2039221 221 
6.45% senior notes due August 2040254 254 
4.00% senior notes due October 2046394 394 
4.750% senior notes due January 2049542 541 
Yen-denominated senior notes and subordinated debentures:
.300% senior notes due September 2025 (principal amount ¥12.4 billion)93 93 
.932% senior notes due January 2027 (principal amount ¥60.0 billion)448 450 
1.075% senior notes due September 2029 (principal amount ¥33.4 billion)249 250 
.500% senior notes due December 2029 (principal amount ¥12.6 billion)94 95 
.550% senior notes due March 2030 (principal amount ¥13.3 billion)99 99 
1.159% senior notes due October 2030 (principal amount ¥29.3 billion)218 220 
.633% senior notes due April 2031 (principal amount ¥30.0 billion)224 225 
.843% senior notes due December 2031 (principal amount ¥9.3 billion)69 70 
.750% senior notes due March 2032 (principal amount ¥20.7 billion)154 155 
1.320% senior notes due December 2032 (principal amount ¥21.1 billion)157 158 
.844% senior notes due April 2033 (principal amount ¥12.0 billion)89 90 
1.488% senior notes due October 2033 (principal amount ¥15.2 billion)113 114 
.934% senior notes due December 2034 (principal amount ¥9.8 billion)73 73 
.830% senior notes due March 2035 (principal amount ¥10.6 billion)79 79 
1.039% senior notes due April 2036 (principal amount ¥10.0 billion)74 75 
1.594% senior notes due September 2037 (principal amount ¥6.5 billion)48 49 
1.750% senior notes due October 2038 (principal amount ¥8.9 billion)66 66 
1.122% senior notes due December 2039 (principal amount ¥6.3 billion)47 47 
1.264% senior notes due April 2041 (principal amount ¥10.0 billion)74 75 
2.108% subordinated debentures due October 2047 (principal amount ¥60.0 billion)445 448 
.963% subordinated bonds due April 2049 (principal amount ¥30.0 billion)224 226 
1.560% senior notes due April 2051 (principal amount ¥20.0 billion)148 149
2.144% senior notes due September 2052 (principal amount ¥12.0 billion)89 90
Yen-denominated loans:
Variable interest rate loan due August 2027 (.35% in 2023 and .33% in 2022, principal amount ¥11.7 billion)87 88 
Variable interest rate loan due August 2029 (.45% in 2023 and .43% in 2022,
  principal amount ¥25.3 billion)
188 190 
Variable interest rate loan due August 2032 (.60% in 2023 and .58% in 2022,
  principal amount ¥70.0 billion)
522 524 
Finance lease obligations payable through 20308 
Operating lease obligations payable through 2049142 139 
Total notes payable and lease obligations$7,420 $7,442 
Amounts in the table above are reported net of debt issuance costs and issuance premiums or discounts, if applicable, that are being amortized over the life of the notes.


In January 2017, the Parent Company issued 60.0 billion yen of senior notes through a U.S. public debt offering. The notes bear interest at a fixed rate of .932% per annum, payable semi-annually, and have a 10-year maturity. These notes may only be redeemed before maturity, in whole but not in part, upon the occurrence of certain changes affecting U.S. taxation, as specified in the indenture governing the terms
66


A summary of the issuance.

In February 2017, the Parent Company extinguished $650 million of 2.65% senior notes upon their maturity.

The Parent Company and Aflac have a 364-day uncommitted bilateral lineCompany's lines of credit with a third party that provides for borrowings in the amountas of $100 million. Borrowings will bear interest at the rate quoted by the bank and agreed upon at the time of making such loan and will have up to a three-month maturity period. There are no related facility fees, upfront expenses or financial covenant requirements. Borrowings under thisMarch 31, 2023 follows:
Borrower(s)TypeTermExpiration DateCapacityAmount OutstandingInterest Rate on Borrowed AmountMaturity PeriodCommitment FeeBusiness Purpose
Aflac Incorporated
and Aflac
uncommitted bilateral364 daysDecember 28, 2023$100 million$0 millionThe rate quoted by the bank and agreed upon at the time of borrowingUp to 3 monthsNoneGeneral corporate purposes
Aflac Incorporatedunsecured revolving5 yearsMay 9,
2027, or the date commitments are terminated pursuant to an event of default
¥100.0 billion¥0.0 billionA rate per annum equal to (a) Tokyo Interbank Market Rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out periodNo later than
May 10, 2027
.28% to .45%, depending on the Parent Company's debt ratings as of the date of determinationGeneral corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated
and Aflac
unsecured revolving5 yearsNovember 15, 2027, or the date commitments are terminated pursuant to an event of default$1.0 billion$0.0 billionA rate per annum equal to, at the
Company's option, either, (a) Secured
Overnight Financing Rate (SOFR) for U.S.
dollar denominated borrowings or TIBOR
for Japanese yen denominated borrowings,
in either case adjusted for certain costs, or
(b) a base rate determined by reference to
the highest of (1) the federal funds rate
plus 1/2 of 1%, (2) the rate of interest for
such day announced by the agent as its
prime rate, or (3) SOFR for an interest
period of one month plus 1.00%, in each
case plus an applicable margin
No later than November 15, 2027
.08% to
.20%, depending on the Parent Company's debt ratings as of the date of determination
General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated
and Aflac
uncommitted bilateralNone specifiedNone specified$50 million$0 millionA rate per annum equal to, at the Parent
Company's option, either (a) a rate
determined by reference to USD LIBOR for
the interest period relevant to such
borrowing or (b) the base rate determined
by reference to the highest of (a) the
lender's USD short-term commercial loan
rate, (b) the federal funds rate plus 1/2 of
1% and (c) USD one-month LIBOR plus
1%. USD LIBOR is subject to replacement
with SOFR under certain circumstances
Up to 3 monthsNoneGeneral corporate purposes
Aflac(1)
uncommitted revolving364 daysNovember 30, 2023$250 million$0 millionUSD three-month LIBOR plus 75 basis points per annumNo later than December 1, 2023NoneGeneral corporate purposes
Aflac Incorporated(1)
(Tranche 1)
uncommitted revolving364 daysNovember 27, 2023¥50.0 billion¥0.0 billionThree-month yen TIBOR plus 45 basis points per annumNo later than November 28, 2023NoneGeneral corporate purposes
Aflac Incorporated(1)
(Tranche 2)
uncommitted revolving364 daysNovember 27, 2023¥50.0 billion¥0.0 billionThree-month yen TIBOR plus 45 basis points per annumNo later than November 28, 2023NoneGeneral corporate purposes
Aflac New York(1)
uncommitted revolving364 days
April 10, 2023(2)
$25 million$0 millionUSD three-month LIBOR plus 75 basis points per annumNo later than
April 11, 2023
NoneGeneral corporate purposes
CAIC(1)
uncommitted revolving364 daysMarch 21,
2024
$15 million$0 millionUSD three-month LIBOR plus 75 basis points per annumNo later than
March 22, 2024
NoneGeneral corporate purposes
(1) Intercompany credit agreement may be used for general corporate purposes. Borrowings under the financing agreement will mature no later than three months after the last drawdown
(2) Renewed in April 2023 with an expiration date of October 14, 2017. As of September 30, 2017, the Company did not have any borrowings outstanding under its $100April 8, 2024
(continued)
67


Borrower(s)TypeTermExpiration DateCapacityAmount OutstandingInterest Rate on Borrowed AmountMaturity PeriodCommitment FeeBusiness Purpose
Tier One Insurance Company(1)
uncommitted revolving364 daysMarch 21,
2024
$0.3 million$0 millionUSD three-month LIBOR plus 75 basis points per annumNo later than March 22, 2024NoneGeneral corporate purposes
Aflac Ventures Japan K.K.(1)
uncommitted revolving364 daysMay 2,
2023
¥500 million¥0 millionA rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable periodNo later than
May 3, 2023
NoneGeneral corporate purposes
Hatch Healthcare K.K.(1)
uncommitted revolving364 daysJanuary 3,
2024
¥900 million¥0 millionA rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable periodNo later than January 4, 2024NoneGeneral corporate purposes
Hatch Insight K.K.(1)
uncommitted revolving364 daysJanuary 3,
2024
¥600 million¥0 millionA rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable periodNo later than January 4, 2024NoneGeneral corporate purposes
Aflac GI Holdings LLC(1)
uncommitted revolving364 daysJuly 17,
2023
$30 million$0 millionUSD three-month LIBOR plus 75 basis points per annumNo later than July 18, 2023NoneGeneral corporate purposes
Aflac Incorporated(1)
uncommitted revolving364 daysJanuary 2,
2024
$400 million$0 millionA rate per annum equal to three-month term SOFR plus 10 basis points for U.S. dollar denominated borrowings or three-month TIBOR for Japanese yen denominated borrowingsNo later than January 3, 2024NoneGeneral corporate purposes
Aflac Re Bermuda Ltd.(1)
uncommitted revolving364 daysJanuary 2,
2024
$400 million$0 millionA rate per annum equal to three-month term SOFR plus 10 basis points for U.S. dollar denominated borrowings or three-month TIBOR for Japanese yen denominated borrowingsNo later than January 3, 2024NoneGeneral corporate purposes
(1) Intercompany credit agreement.agreement

The Parent Company has a three-year senior unsecured revolving credit facility agreement with a syndicate of financial institutions that provides for borrowings of up to 100.0 billion yen on a revolving basis. Borrowings bear interest at a rate per annum equal to the Tokyo interbank market rate (TIBOR) plus, at the Company's option, either (a) the applicable TIBOR margin during the period from the closing date to the commitment termination date or (b) the applicable TIBOR margin during the term out period. The applicable margin ranges between .35% and .75% during the period from the closing date to the commitment termination date and .70% and 1.50% during the term out period, depending on the Parent Company’s debt ratings as of the date of determination. In addition, the Parent Company is required to pay a

facility fee on the commitments ranging between .30% and .50%, also based on the Parent Company’s debt ratings as of the date of determination. Borrowings under this credit agreement may be used for general corporate purposes, including a capital contingency plan for the operations of the Parent Company, and will expire on the earlier of (a) March 31, 2019, or (b) the date the commitments are terminated pursuant to an event of default, as such term is defined in the credit agreement. The credit facility requires compliance with certain financial covenants on a quarterly basis. As of September 30, 2017, the Parent Company did not have any borrowings outstanding under its 100.0 billion yen revolving credit agreement.

The Parent Company and Aflac have a five-year senior unsecured revolving credit facility agreement with a syndicate of financial institutions that provides for borrowings of up to 55.0 billion yen or the equivalent of yen in U.S. dollars on a revolving basis. This credit agreement provides for borrowings in Japanese yen or the equivalent of Japanese yen in U.S. dollars on a revolving basis. Borrowings bear interest at a rate per annum equal to, at the Company's option, either (a) a eurocurrency rate determined by reference to the LIBOR for the interest period relevant to such borrowing adjusted for certain additional costs or (b) a base rate determined by reference to the highest of (1) the federal funds effective rate plus ½ of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate and (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin. The applicable margin ranges between .79% and 1.275% for eurocurrency rate borrowings and 0.0% and .275% for base rate borrowings, depending on the Parent Company’s debt ratings as of the date of determination. In addition, the Parent Company and Aflac are required to pay a facility fee on the commitments ranging between .085% and .225%, also based on the Parent Company’s debt ratings as of the date of determination. Borrowings under the amended and restated credit facility may be used for general corporate purposes, including a capital contingency plan for the operations of the Parent Company and Aflac. The amended and restated credit facility requires compliance with certain financial covenants on a quarterly basis and will expire on the earlier of (a) September 18, 2020, or (b) the date the commitments are terminated pursuant to an event of default, as such term is defined in the credit agreement. As of September 30, 2017, the Company did not have any borrowings outstanding under its 55.0 billion yen revolving credit agreement.

The Parent Company and Aflac have an uncommitted bilateral line of credit with a third party that provides for borrowings in the amount of $50 million. Borrowings will bear interest at the rate quoted by the bank and agreed upon at the time of making such loan and will have up to a three-month maturity period. There are no related facility fees, upfront expenses or financial covenant requirements. Borrowings under this credit agreement may be used for general corporate purposes. As of September 30, 2017, the Company did not have any borrowings outstanding under its $50 million credit agreement.


The Company was in compliance with all of the covenants of its notes payable and lines of credit at September 30, 2017.March 31, 2023. No events of default or defaults occurred during the nine-monththree-month period ended September 30, 2017.March 31, 2023.


For additional information, see Notes 4 and 9 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.

68
9.SHAREHOLDERS’ EQUITY



10.    SHAREHOLDERS’ EQUITY

The following table is a reconciliation of the number of shares of the Company's common stock for the nine-monththree-month periods ended September 30.March 31.

(In thousands of shares)20232022
Common stock - issued:
Balance, beginning of period1,354,079 1,352,739 
Exercise of stock options and issuance of restricted shares933 1,041 
Balance, end of period1,355,012 1,353,780 
Treasury stock:
Balance, beginning of period738,823 700,607 
Purchases of treasury stock:
Share repurchase program10,348 8,007 
Other347 343 
Dispositions of treasury stock:
Shares issued to AFL Stock Plan(239)(259)
Exercise of stock options(48)(58)
Other(171)(209)
Balance, end of period749,060 708,431 
Shares outstanding, end of period605,952 645,349 
(In thousands of shares)2017 2016
Common stock - issued:   
Balance, beginning of period671,249
 669,723
Exercise of stock options and issuance of restricted shares1,420
 1,261
Balance, end of period672,669
 670,984
Treasury stock:   
Balance, beginning of period265,439
 245,343
Purchases of treasury stock:   
Open market13,898
 18,774
Other435
 329
Dispositions of treasury stock:   
Shares issued to AFL Stock Plan(696) (822)
Exercise of stock options(263) (554)
Other(19) (107)
Balance, end of period278,794
 262,963
Shares outstanding, end of period393,875
 408,021


Outstanding share-based awards are excluded from the calculation of weighted-average shares used in the computation of basic earnings per share (EPS). The following table presents the approximate number of share-based awards to purchase shares, on a weighted-average basis, that were considered to be anti-dilutive and were excluded from the calculation of diluted earnings per shareEPS for the following periods.
Three Months Ended March 31,
(In thousands)20232022
Anti-dilutive share-based awards164 249 
 Three Months Ended
September 30,
Nine Months Ended
September 30,
 
(In thousands)2017 20162017 2016
Anti-dilutive share-based awards 266
   109
  335
   1,162
 


Share Repurchase Program


During the first ninethree months of 2017,2023, the Company repurchased 13.910.3 million shares of its common stock in the open market for $1.0 billion$700 million as part of its share repurchase program. During the first ninethree months of 2016,2022, the Company repurchased 18.88.0 million shares of its common stock in the open market for $1.2 billion$500 million as part of its share repurchase program. In August 2017, the Company's board of directors authorized the purchase of an additional 40 million shares of its common stock. As of September 30, 2017,March 31, 2023, a remaining balance of 52.9106.3 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors.



69


Reclassifications from Accumulated Other Comprehensive Income


The tables below are reconciliations of accumulated other comprehensive income by component for the following periods.


Changes in Accumulated Other Comprehensive Income
Three Months Ended
September 30, 2017
(In millions)Unrealized Foreign
Currency Translation
Gains (Losses)
 Unrealized
Gains (Losses)
on Investment Securities
 Unrealized
Gains (Losses)
on Derivatives
 Pension Liability Adjustment Total
Balance, beginning of period $(1,580)   $5,173
   $(23)   $(169)   $3,401
 
Other comprehensive
income (loss) before
reclassification
 (135)   296
   0
   (2)   159
 
Amounts reclassified from
accumulated other
comprehensive income
(loss)
 0
   (32)   0
   3
   (29) 
Net current-period other
comprehensive
income (loss)
 (135)   264
   0
   1
   130
 
Balance, end of period $(1,715)   $5,437
   $(23)   $(168)   $3,531
 
Three Months Ended
March 31, 2023
(In millions)Unrealized Foreign
Currency Translation
Gains (Losses)
Unrealized
Gains (Losses)
on Fixed Maturity Securities
Unrealized
Gains (Losses)
on Derivatives
Effect of Changes in Discount Rate AssumptionsPension
Liability
Adjustment
Total
Balance at December 31, 2022$(3,564)$(702)$(27)$(2,100)$(36)$(6,429)
Other comprehensive
   income (loss) before
   reclassification
(54)2,036 0 (2,794)7 (805)
Amounts reclassified from
   accumulated other
   comprehensive income
  (loss)
0 (45)1 0 0 (44)
Net current-period other
   comprehensive
   income (loss)
(54)1,991 1 (2,794)7 (849)
Balance at March 31, 2023$(3,618)$1,289 $(26)$(4,894)$(29)$(7,278)
All amounts in the table above are net of tax.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

Three Months Ended
March 31, 2022
(In millions)Unrealized Foreign
Currency Translation
Gains (Losses)
Unrealized
Gains (Losses)
on Fixed Maturity Securities
Unrealized
Gains (Losses)
on Derivatives
Effect of Changes in Discount Rate AssumptionsPension Liability AdjustmentTotal
Balance at December 31, 2021$(1,985)$9,602 $(30)$(15,832)$(166)$(8,411)
Other comprehensive
   income (loss) before
   reclassification
(453)(3,754)4,224 (2)15 
Amounts reclassified from
   accumulated other
   comprehensive income
  (loss)
(61)(55)
Net current-period other
   comprehensive
   income (loss)
(453)(3,815)4,224 (40)
Balance at March 31, 2022$(2,438)$5,787 $(29)$(11,608)$(163)$(8,451)
All amounts in the table above are net of tax.

Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
70
Three Months Ended
September 30, 2016
(In millions)Unrealized Foreign
Currency Translation
Gains (Losses)
 Unrealized
Gains (Losses)
on Investment Securities
 Unrealized
Gains (Losses)
on Derivatives
 Pension Liability Adjustment Total
Balance, beginning of period $(847)   $6,441
   $(19)   $(143)   $5,432
 
Other comprehensive
income (loss) before
reclassification
 253
   (342)   0
   (1)   (90) 
Amounts reclassified from
accumulated other
comprehensive income
(loss)
 0
   21
   0
   1
   22
 
Net current-period other
comprehensive
income (loss)
 253
   (321)   0
   0
   (68) 
Balance, end of period $(594)   $6,120
   $(19)   $(143)   $5,364
 
All amounts in the table above are net of tax.




Nine Months Ended
September 30, 2017
(In millions)Unrealized Foreign
Currency Translation
Gains (Losses)
 Unrealized
Gains (Losses)
on Investment Securities
 Unrealized
Gains (Losses)
on Derivatives
 Pension
Liability
Adjustment
 Total
Balance, beginning of period $(1,983)   $4,805
   $(24)   $(168)   $2,630
 
Other comprehensive
income (loss) before
reclassification
 268
   653
   1
   (8)   914
 
Amounts reclassified from
accumulated other
comprehensive income
(loss)
 0
   (21)   0
   8
   (13) 
Net current-period other
comprehensive
income (loss)
 268
   632
   1
   0
   901
 
Balance, end of period $(1,715)   $5,437
   $(23)   $(168)   $3,531
 
All amounts in the table above are net of tax.

Nine Months Ended
September 30, 2016
(In millions)Unrealized Foreign
Currency Translation
Gains (Losses)
 Unrealized
Gains (Losses)
on Investment Securities
 Unrealized
Gains (Losses)
on Derivatives
 Pension Liability Adjustment Total
Balance, beginning of period $(2,196)   $2,986
   $(26)   $(139)   $625
 
Other comprehensive
income (loss) before
reclassification
 1,602
   3,155
   7
   (7)   4,757
 
Amounts reclassified from
accumulated other
comprehensive income
(loss)
 0
   (21)   0
   3
   (18) 
Net current-period other
comprehensive
income (loss)
 1,602
   3,134
   7
   (4)   4,739
 
Balance, end of period $(594)   $6,120
   $(19)   $(143)   $5,364
 
All amounts in the table above are net of tax.

The tables below summarize the amounts reclassified from each component of accumulated other comprehensive income based on sourceinto net earnings for the following periods.



Reclassifications Out of Accumulated Other Comprehensive Income
(In millions)Three Months Ended
September 30, 2017
 
Details about Accumulated Other Comprehensive Income ComponentsAmount Reclassified from Accumulated Other Comprehensive IncomeAffected Line Item in the
Statements of Earnings
Unrealized gains (losses) on available-for-sale
securities
 $56
 Sales and redemptions
  (6) Other-than-temporary impairment
losses realized
  50
 Total before tax
  (18) 
Tax (expense) or benefit(1)
  $32
 Net of tax
Amortization of defined benefit pension items:    
       Actuarial gains (losses) $(4) 
Acquisition and operating expenses(2)
       Prior service (cost) credit 0
 
Acquisition and operating expenses(2)
  1
 
Tax (expense) or benefit(1)
  $(3) Net of tax
Total reclassifications for the period $29
 Net of tax
(In millions)
Three Months Ended
March 31, 2023
Details about Accumulated Other Comprehensive Income ComponentsAmount Reclassified from Accumulated Other Comprehensive IncomeAffected Line Item in the
Statements of Earnings
Unrealized gains (losses) on available-for-sale
   securities
$57Net investment gains (losses)
(12)
Tax (expense) or benefit(1)
$45Net of tax
Unrealized gains (losses) on derivatives$(1)Net investment gains (losses)
0
Tax (expense) or benefit(1)
$(1)Net of tax
Amortization of defined benefit pension items:
       Actuarial gains (losses)$0
Acquisition and operating expenses(2)
Prior service (cost) credit0
Acquisition and operating expenses(2)
0
Tax (expense) or benefit(1)
$0Net of tax
Total reclassifications for the period$44Net of tax
(1)Based on 35%21% tax rate
(2) These accumulated other comprehensive income components are included in the computation of net periodic pensionbenefit cost (see Note 1112 for additional details).


(In millions)
Three Months Ended
March 31, 2022
Details about Accumulated Other Comprehensive Income ComponentsAmount Reclassified from Accumulated Other Comprehensive IncomeAffected Line Item in the
Statements of Earnings
Unrealized gains (losses) on available-for-sale
   securities
$77 Net investment gains (losses)
(16)
Tax (expense) or benefit(1)
$61 Net of tax
Unrealized gains (losses) on derivatives$(1)Net investment gains (losses)
Tax (expense) or benefit(1)
$(1)Net of tax
Amortization of defined benefit pension items:
       Actuarial gains (losses)$(6)
Acquisition and operating expenses(2)
Prior service (cost) credit
Acquisition and operating expenses(2)
Tax (expense) or benefit(1)
$(5)Net of tax
Total reclassifications for the period$55 Net of tax
(In millions)Three Months Ended
September 30, 2016
 
Details about Accumulated Other Comprehensive Income ComponentsAmount Reclassified from Accumulated Other Comprehensive IncomeAffected Line Item in the
Statements of Earnings
Unrealized gains (losses) on available-for-sale
securities
 $(11) Sales and redemptions
  (22) Other-than-temporary impairment
losses realized
  (33) Total before tax
  12
 
Tax (expense) or benefit(1)
  $(21) Net of tax
Amortization of defined benefit pension items:    
       Actuarial gains (losses) $(4) 
Acquisition and operating expenses(2)
       Prior service (cost) credit 2
 
Acquisition and operating expenses(2)
  1
 
Tax (expense) or benefit(1)
  $(1) Net of tax
Total reclassifications for the period $(22) Net of tax
(1)Based on 35%21% tax rate
(2) These accumulated other comprehensive income components are included in the computation of net periodic pensionbenefit cost (see Note 1112 for additional details).



71
(In millions)Nine Months Ended
September 30, 2017
 
Details about Accumulated Other Comprehensive Income ComponentsAmount Reclassified from Accumulated Other Comprehensive IncomeAffected Line Item in the
Statements of Earnings
Unrealized gains (losses) on available-for-sale
securities
 $56
 Sales and redemptions
  (23) Other-than-temporary impairment
losses realized
  33
 Total before tax
  (12) 
Tax (expense) or benefit(1)
  $21
 Net of tax
Amortization of defined benefit pension items:    
       Actuarial gains (losses) $(12) 
Acquisition and operating expenses(2)
Prior service (cost) credit 0
 
Acquisition and operating expenses(2)
  4
 
Tax (expense) or benefit(1)
  $(8) Net of tax
Total reclassifications for the period $13
 Net of tax
(1) Based on 35% tax rate
(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 11 for additional details).



(In millions)Nine Months Ended
September 30, 2016
 
Details about Accumulated Other Comprehensive Income ComponentsAmount Reclassified from Accumulated Other Comprehensive IncomeAffected Line Item in the
Statements of Earnings
Unrealized gains (losses) on available-for-sale
securities
 $102
 Sales and redemptions
  (69) Other-than-temporary impairment
losses realized
  33
 Total before tax
  (12) 
Tax (expense) or benefit(1)
  $21
 Net of tax
Amortization of defined benefit pension items:    
       Actuarial gains (losses) $(12) 
Acquisition and operating expenses(2)
Prior service (cost) credit 8
 
Acquisition and operating expenses(2)
  1
 
Tax (expense) or benefit(1)
  $(3) Net of tax
Total reclassifications for the period $18
 Net of tax
(1) Based on 35% tax rate
(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 11 for additional details).

10.11.    SHARE-BASED COMPENSATION


As of September 30, 2017,March 31, 2023, the Company has outstanding share-based awards under the Aflac Incorporated Long-Term Incentive Plan (As Amended and Restated February 14, 2017), as further amended on August 9, 2022 (the “Plan”)Plan). Share-based awards are designed to reward employees for their long-term contributions to the Company and provide incentives for them to remain with the Company. The number and frequency of share-based awards are based on competitive practices, operating results of the Company, government regulations, and other factors.


The Plan, as amended on February 14, 2017, allows for a maximum number of shares issuable over its term of 37.575 million shares including 1938 million shares that may be awarded in respect of awards other than options or stock

appreciation rights. If any awards granted under the Plan are forfeited or are terminated before being exercised or settled for any reason other than tax forfeiture, then the shares underlying the awards will again be available under the Plan.


The Plan allows awards to Company employees for incentive stock options (ISOs), non-qualifying stock options (NQSOs), restricted stock, restricted stock units, and stock appreciation rights. Non-employee directors are eligible for grants of NQSOs, restricted stock, and stock appreciation rights. As of September 30, 2017,March 31, 2023, approximately 20.634.8 million shares were available for future grants under this plan. The ISOs and NQSOs have a term of 10 years, and the share-based awards generally vest upon time-based conditions or time and performance-based conditions. Time-based vesting generally occurs after three years. Performance-based vesting conditions generally include the attainment of goals related to Company financial performance. As of September 30, 2017,March 31, 2023, the only performance-based awards issued and outstanding were restricted stock awards.awards and units.


Stock options and stock appreciation rights granted under the amended Plan have an exercise price of at least 100% of the fair market value of the underlying stock on the grant date and have an expiration date no later than 10 years from the grant date. Time-based restricted stock awards, restricted stock units and stock options granted after January 1, 2017 generally vest on a ratable basis over three years, and awards granted prior to the amendment vest on a three-year cliff basis.basis over three years. The Compensation Committee of the Board of Directors has the discretion to determine vesting schedules.schedules.


Share-based awards granted to U.S.-based grantees are settled with authorized but unissued Company stock, while those issued to Japan-based grantees are settled with treasury shares.


The following table provides information on stock options outstanding and exercisable at September 30, 2017.March 31, 2023.
Stock
Option Shares
(in thousands)
Weighted-Average
Remaining Term
(in years)
Aggregate
Intrinsic
Value
(in millions)
Weighted-Average
Exercise Price Per
Share
Outstanding1,414 2.8$45 $32.56 
Exercisable1,414 2.845 32.56 
 Stock
Option Shares
(in thousands)
 Weighted-Average
Remaining Term
(in years)
 Aggregate
Intrinsic
Value
(in millions)
 Weighted-Average
Exercise Price Per
Share
Outstanding 4,181
   5.4   $108
   $55.61
 
Exercisable 2,563
   3.6   79
   50.73
 


The Company received cash from the exercise of stock options in the amount of $48$4 million during the first ninethree months of 2017,2023, compared with $59$8 million in the first ninethree months of 2016.2022. The tax benefit realized as a result of stock option exercises and restricted stock releases was $37$17 million in the first ninethree months of 2017,2023, compared with $29$16 million in the first ninethree months of 2016.2022.


As of September 30, 2017,March 31, 2023, total compensation cost not yet recognized in the Company's consolidated financial statements related to restricted stock awards and units was $43$75 million, of which $17$43 million (968 thousand(1.8 million shares) was related to restricted stock awards and units with a performance-based vesting condition. The Company expects to recognize these amounts over a weighted-average period of approximately 1.11.9 years. There are no other contractual terms covering restricted stock awards once vested.


The following table summarizes restricted stock activity during the nine-monththree-month period ended September 30.March 31, 2023.
72


(In thousands of shares) Shares 
Weighted-Average
Grant-Date Fair Value
Per Share
Restricted stock at December 31, 2016 1,868
  $61.76
 
Granted in 2017 555
  72.85
 
Canceled in 2017 (79)  64.22
 
Vested in 2017 (486)  62.22
 
Restricted stock at September 30, 2017 1,858
  $64.71
 
(In thousands of shares)SharesWeighted-Average
Grant-Date Fair Value
Per Share
Restricted stock at December 31, 20222,414 $56.21 
Granted in 20231,066 70.52 
Canceled in 2023(41)57.33 
Vested in 2023(1,080)52.66 
Restricted stock at March 31, 20232,359 $62.34 


In February 2017,2023, the Company granted 253454 thousand performance-based stock awards and units, which are contingent on the achievement of the Company's financial performance metrics and its market-based conditions. On the date of grant, the Company estimated the fair value of restricted stock awards and units with market-based conditions using a Monte Carlo simulation model. The model discounts the value of the stock at the assumed vesting date based on the risk-free interest rate. Based on estimates of actual performance versus the vesting thresholds, the calculated fair value percentage pay-out estimate will be updated each quarter.



The Company uses third-party analyses to assist in developing the assumptions used in, as well as calibrating, a Monte Carlo simulation model. The Company is responsible for determining the assumptions used in estimating the fair value of its share-based payment awards.

On January 1, 2017, the Company adopted accounting guidance related to employee share-based payment accounting, which requires an entity to elect whether to use estimates of forfeitures, or to account for forfeitures as they occur, using modified retrospective application. The Company has made an entity-wide accounting policy election to estimate the number of awards that are expected to vest (consistent with the Company's prior policy). The election and adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.


For additional information on the Company's long-term share-based compensation plans and the types of share-based awards, see Note 12 of the Notes to the Consolidated Financial Statements included in the 20162022 Annual Report.


11.BENEFIT PLANS

12.    BENEFIT PLANS

The Company has funded defined benefit plans in Japan and the United States,U.S., however the U.S. plan was frozen to new participants effective October 1, 2013. The Company also maintains non-qualified, unfunded supplemental retirement plans that provide defined pension benefits in excess of limits imposed by federal tax law for certain Japanese, U.S. and former employees, however the U.S. plan was frozen to new participants effective January 1, 2015. U.S. employees who are not participants in the defined benefit plan receive a nonelective 401(k) employer contribution.


The Company provides certain health care benefits for eligible U.S. retired employees, their beneficiaries and covered dependents ("other(other postretirement benefits")benefits). The health care plan is contributory and unfunded. Effective January 1, 2014, employees eligible for benefits included the following: (1) active employees whose age plus service, in years, equaled or exceeded 80 (rule of 80); (2) active employees who were age 55 or older and have met the 15 years of service requirement; (3) active employees who would meet the rule of 80 in the next five years; (4) active employees who were age 55 or older and who would meet the 15 years of service requirement within the next five years; and (5) current retirees. For certain employees and former employees, additional coverage is provided for all medical expenses for life.


Pension and other postretirement benefit expenses are included in acquisition and operating expenses in the consolidated statementstatements of earnings, includedwhich includes other components of net periodic pension cost and postretirement costs (other than service costs) of $2 million and $4 million for the three-month periods ended March 31, 2023 and 2022, respectively. Total net periodic benefit cost includes the following components:
   Three Months Ended September 30,
  Pension Benefits Other
  Japan U.S. Postretirement Benefits
(In millions) 2017 2016 2017 2016 2017 2016
Components of net periodic
benefit cost:
                        
Service cost  $4
   $4
   $6
   $5
   $0
   $0
 
Interest cost  2
   2
   8
   8
   0
   0
 
Expected return on plan
assets
  (1)   (1)   (6)   (6)   0
   0
 
Amortization of net actuarial
loss
  1
   0
   3
   4
   0
   0
 
Amortization of prior service
cost (credit)
  0
   0
   0
   0
   0
   (2) 
Net periodic (benefit) cost  $6
   $5
   $11
   $11
   $0
   $(2) 

Three Months Ended March 31,
Pension BenefitsOther
JapanU.S.Postretirement Benefits
(In millions)202320222023202220232022
Components of net periodic
  benefit cost:
Service cost$4 $$4 $$0 $
Interest cost2 11 0 
Expected return on plan assets(2)(2)(9)(11)0 
Amortization of net actuarial loss0 0 0 
Net periodic (benefit) cost$4 $$6 $$0 $

73

  Nine Months Ended September 30,
  Pension Benefits Other
  Japan U.S. Postretirement Benefits
(In millions) 2017 2016 2017 2016 2017 2016
Components of net periodic
benefit cost:
                        
Service cost  $13
   $12
   $18
   $17
   $0
   $0
 
Interest cost  5
   5
   24
   24
   1
   1
 
Expected return on plan
assets
  (3)   (3)   (17)   (17)   0
   0
 
Amortization of net actuarial
loss
  2
   1
   10
   10
   0
   1
 
Amortization of prior service
cost (credit)
  0
   0
   0
   0
   0
   (8) 
Net periodic (benefit) cost  $17
   $15
   $35
   $34
   $1
   $(6) 


During the ninethree months ended September 30, 2017,March 31, 2023, Aflac Japan contributed approximately $18$6 million (using the weighted-average yen/dollar exchange rate for the nine-monththree-month period ending September 30, 2017)ended March 31, 2023) to the Japanese funded defined benefit plan, and Aflac U.S. contributed $40 milliondid not make a contribution to the U.S. funded defined benefit plan.


For additional information regarding the Company's Japanese and U.S. benefit plans, see Note 14 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.


12.COMMITMENTS AND CONTINGENT LIABILITIES

Effective for 2017,13.    COMMITMENTS AND CONTINGENT LIABILITIES

In February 2023, the Company entered intorenewed an outsourcing agreement with an informationa management consulting and technology and data services company to provide application maintenance and development services for its Japanese operation.Aflac Japan. As of September 30, 2017,March 31, 2023, the agreement has a remaining term of five years and an aggregate remaining cost of 7.8¥20.9 billion yen ($69157 million using the September 30, 2017,March 31, 2023 exchange rate).


The Company is a defendant in various lawsuits and receives various regulatory inquiries considered to be in the normal course of business. Members of the Company's senior legal and financial management teams review litigation and regulatory inquiries on a quarterly and annual basis. The final results of any litigation or regulatory inquiries cannot be predicted with certainty. Although some of this litigation is pending in states where large punitive damages, bearing little relation to the actual damages sustained by plaintiffs, have been awarded in recent years, the Company believes the outcome of pending litigation will not have a material adverse effect on its financial position, results of operations, or cash flows.


See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.


Guaranty Fund Assessments


The United StatesU.S. insurance industry has a policyholder protection system that is monitored and regulated by state insurance departments. These life and health insurance guaranty associations are state entities (in all 50 states as well as Puerto Rico and the District of Columbia) created to protect policyholders of an insolvent insurance company. All insurance companies (with limited exceptions) licensed to sell life or health insurance in a state must be members of that state’s guaranty association. Under state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business.


In 2009, the Pennsylvania Insurance Commissioner placed long-term care insurer Penn Treaty Network America Insurance Company and its subsidiary American Network Insurance Company (collectively referred to as Penn Treaty), neither of which is affiliated with Aflac, in rehabilitation and petitioned a state court for approval to liquidate Penn Treaty. A final order of liquidation was granted by a recognized judicial authority on March 1, 2017, and as a result, Penn Treaty is in the process of liquidation. The Company estimated and recognized the impact of its share of guarantyGuaranty fund assessments resulting from the liquidation using a discounted rate of 4.25%. The Company recognized a discounted liability for the assessments of $62 million (undiscounted $94 million), offset by discounted premium tax credits of $48 million (undiscounted $74 million), for a net $14 million impact to net income in the quarterthree-month periods ended March 31, 2017. The

Company expects a majority of these assessments to be paid over the next year2023 and a majority of the tax credits to be realized over the next five years. The Company uses the most current cost estimate provided by the National Organization of Life and Health Guaranty Associations (NOLHGA) to calculate its estimated assessments and tax credits. To the extent Medicare part D related premiums are included in the industry premiums within the latest NOLHGA annual report, the Company's assessments estimate will increase. Since this information is not available at this time, the Company cannot at this time estimate the extent of the increase, if any. Guaranty fund assessments in the second and third quarters of 20172022 were immaterial.


74
13.SUBSEQUENT EVENTS

In October 2017, the Parent Company issued 60.0 billion yen of subordinated debentures through a public debt offering under its U.S. shelf registration statement. The debentures bear interest at an initial rate of 2.108% per annum through October 22, 2027, or earlier redemption. Thereafter, the rate of the interest of the debentures will be reset every five years at a rate of interest equal to the then-current JPY 5-year Swap Offered Rate plus 205 basis points. The debentures are payable semi-annually in arrears and have a 30-year maturity. The debentures are redeemable (i) at any time, in whole but not in part, upon the occurrence of certain tax events or certain rating agency events, as specified in the indenture governing the terms of the debentures or (ii) in 10 years, in whole or in part, at a redemption price equal to their principal amount plus accrued and unpaid interest to, but excluding, the date of redemption.



Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A)

FORWARD-LOOKING INFORMATION

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor”safe harbor to encourage companies to provide prospective information, so long as those informational statements are identified as forward-looking and are accompanied by meaningful cautionary statements identifying important factors that could cause actual results to differ materially from those included in the forward-looking statements. TheAflac Incorporated (the Parent Company) and its subsidiaries (collectively with the Parent Company, desiresthe Company) desire to take advantage of these provisions. This report contains cautionary statements identifying important factors that could cause actual results to differ materially from those projected herein, and in any other statements made by Company officials in communications with the financial community and contained in documents filed with the Securities and Exchange Commission (SEC). Forward-looking statements are not based on historical information and relate to future operations, strategies, financial results or other developments. Furthermore, forward-looking information is subject to numerous assumptions, risks and uncertainties. In particular, statements containing words such as “expect,” “anticipate,” “believe,” “goal,” “objective,” “may,” “should,” “estimate,” “intends,” “projects,” “will,” “assumes,” “potential,” “target,” "outlook"the ones listed below or similar words, as well as specific projections of future results, generally qualify as forward-looking. AflacThe Company undertakes no obligation to update such forward-looking statements.

• expect• anticipate• believe• goal• objective
• may• should• estimate• intends• projects
• will• assumes• potential• target• outlook
The Company cautions readers that the following factors, in addition to other factors mentioned from time to time, could cause actual results to differ materially from those contemplated by the forward-looking statements:

difficult conditions in global capital markets and the economy, including inflation and the continued effects caused by COVID-19
defaults and credit downgrades of investments
global fluctuations in interest rates and exposure to significant interest rate risk
concentration of business in Japan
limited availability of acceptable yen-denominated investments
foreign currency fluctuations in the yen/dollar exchange rate
failurediffering interpretations applied to executeinvestment valuations
significant valuation judgments in determination of expected credit losses recorded on the Company's investments
decreases in the Company's financial strength or implement the conversiondebt ratings
decline in creditworthiness of other financial institutions
concentration of the Japan branchCompany's investments in any particular single-issuer or sector
major public health issues, including COVID-19 and any resulting or coincidental economic effects, on the Company's business and financial results
the Company's ability to a legal subsidiaryattract and retain qualified sales associates, brokers, employees, and distribution partners
limited availability of acceptable yen-denominated investments
deviations in actual experience from pricing and reserving assumptions
ability to continue to develop and implement improvements in information technology systems and on successful execution of revenue growth and expense management initiatives
governmental actions for the purpose of stabilizing the financial markets
interruption in telecommunication, information technology and other operational systems, or a failure to maintain the security, confidentiality or privacy of sensitive data residing on such systems
ongoing changes insubsidiaries' ability to pay dividends to the Company's industryParent Company
inherent limitations to risk management policies and procedures
operational risks of third party vendors
tax rates applicable to the Company may change
failure to comply with restrictions on patientpolicyholder privacy and information security
extensive regulation and changes in law or regulation by governmental authorities
defaultscompetitive environment and credit downgrades of investments
ability to attractanticipate and retain qualified sales associatesrespond to market trends
catastrophic events, including, but not limited to, as a result of climate change, epidemics, pandemics (such as COVID-19), tornadoes, hurricanes, earthquakes, tsunamis, war or other military action, terrorism or other acts of violence, and employeesdamage incidental to such events
decline in creditworthiness of other financial institutions
subsidiaries' ability to pay dividends toprotect the Aflac Incorporated
decreases inbrand and the Company's financial strength or debt ratingsreputation
inherent limitations to risk management policies and procedures
concentration of the Company's investments in any particular single-issuer or sector
differing judgments applied to investment valuations
ability to effectively manage key executive succession
significant valuation judgments in determination of amount of impairments taken on the Company's investments
catastrophic events including, but not necessarily limited to, epidemics, pandemics, tornadoes, hurricanes, earthquakes, tsunamis, acts of terrorism and damage incidental to such events
changes in U.S. and/or Japanese accounting standards
loss of consumer trust resulting from events external to the Company's operations
increased expenses and reduced profitability resulting from changes in assumptions for pension and other postretirement benefit plans
level and outcome of litigation
failureallegations or determinations of internal controls or corporate governance policies and proceduresworker misclassification in the United States

75



MD&A OVERVIEW
Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A)MD&A is intended to inform the reader about matters affecting the financial condition and results of operations of Aflac Incorporated and its subsidiaries for the three- and nine-monththree-month periods ended September 30, 2017March 31, 2023 and 2016,2022, respectively. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, the following discussion should be read in conjunction with the consolidated financial statements and notes that are included in the Company's annual report on Form 10-K for the year ended December 31, 2016 (20162022 (2022 Annual Report). In this MD&A, amounts may not foot due to rounding.

This MD&A is divided into the following sections:

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EXECUTIVE SUMMARY
Company Overview
Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) provide financial protection to millions of policyholders and customers in Japan and the U.S. The Company’s principal business is supplemental health and life insurance products with the goal to provide customers the best value in supplemental insurance products in the United States (U.S.) and Japan. The Company's Businessinsurance business consists of two reporting segments: Aflac Japan and Aflac U.S. The Parent Company’s primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. in Japan (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Aflac Benefits Solutions, Inc. (ABS), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.). The Parent Company, other operating business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other.
In 2022, the Company established Aflac Re Bermuda Ltd. (Aflac Re), a Bermuda domiciled insurer that reinsures certain policies issued by ALIJ. Aflac Re is subject to regulation in Bermuda, where the Bermuda Monetary Authority (BMA) has broad administrative powers relating to granting and revoking licenses to transact reinsurance business, approval of specific reinsurance transactions, capital requirements and solvency standards, limitations on dividends to shareholders, the nature of and limitations on investments, and the filing of financial statements in accordance with prescribed or permitted accounting practices. Financial results from Aflac Re are included in Corporate and other.
Performance Highlights
Critical Accounting Estimates
Results of Operations, consolidated and by segment
Analysis of Financial Condition
Capital Resources and Liquidity, including discussion of availability of capital and the sources and uses of cash

THE COMPANY'S BUSINESS
Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) primarily sell supplemental health and life insurance in the United States and Japan. The Company’s insurance business is marketed and administered through American Family Life Assurance Company of Columbus (Aflac), which operates in the United States (Aflac U.S.) and as a branch in Japan (Aflac Japan). American Family Life Assurance Company of New York (Aflac New York) is a wholly owned subsidiary of Aflac. Most of Aflac’s policies are individually underwritten and marketed through independent agents. Additionally, Aflac U.S. markets and administers group products through Continental American Insurance Company (CAIC), branded as Aflac Group Insurance. The Company's insurance operations in the United States and its branch in Japan service the two markets for its insurance business.
PERFORMANCE HIGHLIGHTS
Yen-denominated income statement accounts are translated to U.S. dollars using a weighted-average Japanese yen/U.S. dollar foreign exchange rate, while yen-denominated balance sheet accounts are translated to U.S. dollars using a spot Japanese yen/U.S. dollar foreign exchange rate. The spot yen/dollar exchange rate at September 30, 2017 was 112.73, or 3.3% stronger than the spot yen/dollar exchange rate of 116.49 at December 31, 2016. The weighted-average yen/dollar exchange rate for the three-month period ended September 30, 2017 was 111.03, or 7.8% weaker than the weighted-average yen/dollar exchange rate of 102.37 for the same period in 2016. The weighted-average yen/dollar exchange rate for the nine-month period ended September 30, 2017 was 111.89, or 3.0% weaker than the weighted-average yen/dollar exchange rate of 108.58 for the same period in 2016.
RevenuesTotal revenues were $5.5 billion in the third quarter of 2017, compared with $5.7 billion in the third quarter of 2016. Net earnings were $716 million, or $1.80 per diluted share in the third quarter of 2017, compared with $629 million, or $1.53 per diluted share, in the third quarter of 2016. The increase in net earnings in the third quarter of 2017 primarily reflects realized investment gains compared with realized investment losses in the third quarter of 2016.

Revenues were $16.2$4.8 billion in the first ninethree months of 2017,2023, compared with $16.6$5.2 billion in the first ninethree months of 2016. The decline in revenues was primarily driven by the change in the yen/dollar exchange rate as noted.2022. Net earnings were $2.0$1.2 billion, or $5.05$1.94 per diluted share in the first ninethree months of 2017,2023, compared with $1.9$1.0 billion, or $4.59$1.60 per diluted share, forin the first ninethree months of 2016.

2022.
Results in the thirdfirst quarter of 20172023 included pretax net realized investment gains of $30$123 million, compared with pretax net realized investment lossesgains of $164$122 million in the third quarterfirst three months of 2016.2022. Net investment gains in the third quarterfirst three months of 20172023 included $8 millionan increase in credit loss allowances of other-than-temporary impairment losses; $61$30 million; $99 million of net gains from the salecertain derivative and foreign currency gains or redemption of securities; and $23losses; $3 million of net losses from derivativeson equity securities; and foreign currency gains (losses).

Results in the first nine months of 2017 included pretax net realized investment losses of $166 million, compared with net realized investment losses of $358 million in the first nine months of 2016. Net investment losses in the first nine months of 2017 included $27 million of other-than-temporary impairment losses; $60$57 million of net gains from sales and redemptions.
The average yen/dollar exchange rate(1) for the salethree-month period ended March 31, 2023 was 132.30, or redemption12.2% weaker than the average yen/dollar exchange rate(1) of securities;116.18 for the same period in 2022.
Adjusted earnings(2) in the first quarter of 2023 were $1.0 billion, or $1.55 per diluted share, compared with $942 million, or $1.44 per diluted share, in the first quarter of 2022. The weaker yen/dollar exchange rate negatively impacted adjusted earnings per diluted share by $.07.
Total investments and $199cash at March 31, 2023 were $120.5 billion, compared with $117.4 billion at December 31, 2022. In the first quarter of 2023, Aflac Incorporated repurchased $700 million, or 10.3 million of its common shares. At March 31, 2023, the Company had 106.3 million remaining shares authorized for repurchase.
Shareholders’ equity was $19.8 billion, or $32.65 per share, at March 31, 2023, compared with $20.1 billion, or $32.73 per share, at December 31, 2022. Shareholders’ equity at March 31, 2023 included a cumulative decrease of $4.9 billion from the effect of changes in discount rate assumptions on insurance contracts, driven by the adoption of the new accounting guidance for long-duration insurance contracts, compared with a corresponding cumulative decrease of $2.1 billion at December 31, 2022, and a net losses fromunrealized gain on investment securities and derivatives andof $1.3 billion, compared with a net unrealized loss of $729 million at December 31, 2022. Shareholders’ equity at March 31, 2023 also included an unrealized foreign currency gains (losses)translation lossof $3.6 billion, compared with an unrealized foreign currency translation loss of $3.6 billion at December 31, 2022. The annualized return on average shareholders’ equity in the first quarter of 2023 was 23.8%.

Shareholders’ equity excluding accumulated other comprehensive income (AOCI)(2) (adjusted book value) was $27.1 billion, or $44.66 per share at March 31, 2023, compared with $26.6 billion, or $43.18 per share, at December 31, 2022. The annualized adjusted return on equity (ROE) excluding foreign currencyimpact(2) in the first quarter of 2023 was 14.8%.


In January 2017,(1) Yen/U.S. dollar exchange rates are based on the Parent Company issued 60.0 billion yenpublished MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).
(2) See the Results of senior notes through a U.S. public debt offering. In February 2017, the Parent Company extinguished $650 million of 2.65% senior notes upon their maturity. For further information regarding these transactions, see Note 8 of the Notes to the Consolidated Financial Statements and the Capital Resources and LiquidityOperations section of this MD&A.&A for a definition of this non-U.S. GAAP financial measure.

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In the first nine months of 2017, the Company repurchased 13.9 million shares of its common stock in the open market for $1.0 billion under its share repurchase program.



CRITICAL ACCOUNTING ESTIMATES
The Company prepares its financial statements in accordance with U.S. generally accepted accounting principles (GAAP). These principles are established primarily by the Financial Accounting Standards Board (FASB). In this MD&A, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards Codification (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The estimates that the Company deems to be most critical to an understanding of Aflac’s results of operations and financial condition are those related to the valuation of investments and derivatives, deferred policy acquisition costs (DAC), liabilities for future policy benefits and unpaid policy claims, and income taxes. The preparation and evaluation of these critical accounting estimates involve the use of various assumptions developed from management’s analyses and judgments. The application of these critical accounting estimates determines the values at which 93% of the Company's assets and 80% of its liabilities are reported as of September 30, 2017, and thus has a direct effect on net earnings and shareholders’ equity. Subsequent experience or use of other assumptions could produce significantly different results.

There have been no changes in the items that the Company has identified as critical accounting estimates during the nine months ended September 30, 2017. For additional information, see the Critical Accounting Estimates section of MD&A included in the 2016 Annual Report.
New Accounting Pronouncements
For information on new accounting pronouncements and the impact, if any, on the Company's financial position or results of operations, see Note 1 of the Notes to the Consolidated Financial Statements.

RESULTS OF OPERATIONS

The Company earns its revenues principally from insurance premiums and investments. The Company’s operating expenses primarily consist of insurance benefits provided and reserves established for anticipated future insurance benefits, general business expenses, commissions and other costs of selling and servicing its products. Profitability for the Company depends principally on its ability to price its insurance products at a level that enables the Company to earn a margin over the costs associated with providing benefits and administering those products. Profitability also depends on, among other items, actuarial and policyholder behavior experience on insurance products, and the Company's ability to attract and retain customer assets, generate and maintain favorable investment results, effectively deploy capital and utilize tax capacity, and manage expenses.
The following discussion
This document includes references to the Company'sCompany’s financial performance measures operating earnings, operating earnings per diluted share, and amortized hedge costs, which are not calculated in accordance with U.S. GAAP. TheseUnited States generally accepted accounting principles (U.S. GAAP) (non-U.S. GAAP). The financial measures exclude items that the Company believes may obscure the underlying fundamentals and trends in the Company's insurance operations because they tend to be driven by general economic conditions and events or related to infrequent activities not directly associated with its insurance operations. The

Due to the size of Aflac Japan, where the functional currency is the Japanese yen, fluctuations in the yen/dollar exchange rate can have a significant effect on reported results. In periods when the yen weakens, translating yen into dollars results in fewer dollars being reported. When the yen strengthens, translating yen into dollars results in more dollars being reported. Consequently, yen weakening has the effect of suppressing current period results in relation to the comparable prior period, while yen strengthening has the effect of magnifying current period results in relation to the comparable prior period. A significant portion of the Company’s business is conducted in yen and never converted into dollars but translated into dollars for U.S. GAAP reporting purposes, which results in foreign currency impact to earnings, cash flows and book value on a U.S. GAAP basis. Management evaluates the Company's management uses operating earnings and operating earnings per diluted share to evaluate the financial performance both including and excluding the impact of its insurance operations on a consolidated basis,foreign currency translation to monitor, respectively, cumulative currency impacts and the Company believes that a presentation of these measurescurrency-neutral operating performance over time. The average yen/dollar exchange rate is vitally important to an understanding of its underlying profitability drivers and trends of its insurance business. based on the published MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).

The Company believes that amortized hedge costs, which are a component of operating earnings, measuredefines the periodic currency risk management costs associated with hedging a portion of Aflac Japan’s U.S. dollar-denominated investments and are an important component of net investment income.

Aflac defines operating earnings (a non-U.S. GAAP financial measure)measures included in this document as the profits derived from operations. Operatingfollows:

Adjusted earnings includes interest cash flows associated with notes payable are adjusted revenues less benefits and amortized hedge costs related to foreign currency denominated investments, but excludes certain items that cannot be predicted or that are outside of management's control, such as realized investment gains and losses from securities transactions, impairments, change in loan loss reserves and certain derivative and foreign currency activities; nonrecurring items; and other non-operating income (loss) from net earnings. Nonrecurring and other non-operating items consist of infrequent events and activity not associated with the normal course of the Company’s insurance operations and do not reflect Aflac’s underlying business performance. The Company defines operatingadjusted expenses. Adjusted earnings per share (basic or dilutive) to be operatingdiluted) are the adjusted earnings for the period divided by the weighted average outstanding shares (basic or dilutive)diluted) for the period presented. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding adjusted net investment gains and losses. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect the Company's underlying business performance. Management uses adjusted earnings and adjusted earnings per diluted share to evaluate the financial performance of the Company’s insurance operations on a consolidated basis and believes that a presentation of these financial measures is vitally important to an understanding of the underlying profitability drivers and trends of the Company’s insurance business. The most comparable U.S. GAAP financial measures for adjusted earnings and adjusted earnings per share (basic or diluted) are net earnings and net earnings per share, respectively.


BecauseAdjusted net investment gains and losses are net investment gains and losses adjusted for i) amortized hedge cost/income related to foreign currency exposure management strategies and certain derivative activity, ii) net interest cash flows from foreign currency and interest rate derivatives associated with certain investment strategies, which are both reclassified to net investment income, and iii) the impact of interest cash flows from derivatives associated with notes payable, which is reclassified to interest expense as a component of total adjusted expenses. The Company considers adjusted net investment gains and losses important as it represents the remainder amount that is considered outside management’s control, while excluding the components that are within management’s control and are accordingly reclassified to net investment income and interest expense. The most comparable U.S. GAAP financial measure for adjusted net investment gains and losses is net investment gains and losses.

Amortized hedge costs/income represent costs/income incurred or recognized as a result of using foreign currency derivatives to hedge certain foreign exchange risks in the Company's Japan segment or in Corporate and other. These amortized hedge costs/ income are estimated at the inception of the derivatives based on the specific terms of each contract and are recognized on a straight-line basis over the term of the hedge. The Company believes that amortized hedge costs/income measure the periodic currency risk management costs/
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income related to hedging certain foreign currency exchange risks and are an important component of net investment income. There is no comparable U.S. GAAP financial measure for amortized hedge costs/ income.

Adjusted earnings excluding current period foreign currency impact are computed using the average foreign currency exchange rate for the comparable prior-year period, which eliminates fluctuations driven solely by foreign currency exchange rate changes. Adjusted earnings per diluted share excluding current period foreign currency impact is adjusted earnings excluding current period foreign currency impact divided by the weighted average outstanding diluted shares for the period presented. The Company considers adjusted earnings excluding current period foreign currency impact and adjusted earnings per diluted share excluding current period foreign currency impact important because a significant portion of the Company's business is conducted in Japan and foreign exchange rates are outside of management’s control,control; therefore, the Company believes it is important to understand the impact of translating foreign currency (primarily Japanese yenyen) into U.S. dollars. OperatingThe most comparable U.S. GAAP financial measures for adjusted earnings excluding current period foreign currency impact and operatingadjusted earnings per diluted share excluding current period foreign currency impact are computednet earnings and net earnings per share, respectively.

Adjusted book value is the U.S. GAAP book value (representing total shareholders’ equity), less AOCI as recorded on the U.S. GAAP balance sheet. Adjusted book value per common share is adjusted book value at the period end divided by the ending outstanding common shares for the period presented. The Company considers adjusted book value and adjusted book value per common share important as they exclude AOCI, which fluctuates due to market movements that are outside management’s control. The most comparable U.S. GAAP financial measures for adjusted book value and adjusted book value per common share are total book value and total book value per common share, respectively.

Adjusted return on equity excluding foreign currency impact is adjusted earnings excluding the current period foreign currency impact divided by average shareholders’ equity, excluding AOCI. The Company considers adjusted return on equity excluding foreign currency impact important as it excludes changes in foreign currency and components of AOCI, which fluctuate due to market movements that are outside management's control. The most comparable U.S. GAAP financial measure for adjusted return on equity excluding foreign currency impact is ROE as determined using net earnings and average total shareholders’ equity.

U.S. dollar-denominated investment income excluding foreign currency impact represents amounts excluding foreign currency impact on U.S. dollar-denominated investment income using the average yen/dollarforeign currency exchange rate for the comparable prior year period,period. The Company considers U.S. dollar-denominated investment income excluding foreign currency impact important as it eliminates the impact of foreign currency changes on the Aflac Japan segment results, which are outside management’s control. The most comparable U.S. GAAP financial measure for U.S. dollar-denominated investment income excluding foreign currency impact is the corresponding net investment income amount from the U.S. dollar denominated investments translated to yen.


eliminates dollar based fluctuations driven solely from currency rate changes.
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The following table is a reconciliation of items impacting operatingadjusted earnings and operatingadjusted earnings per diluted share to the most directly comparable U.S. GAAP financial measures of net earnings and net earnings per diluted share, respectively.
Reconciliation of Net Earnings to OperatingAdjusted Earnings(1)
  
In MillionsPer Diluted Share
Three Months Ended March 31,
2023202220232022
Net earnings$1,188 $1,047 $1.94 $1.60 
Items impacting net earnings:
Adjusted net investment (gains) losses (1)
(209)(134)(.34)(.21)
Other and non-recurring (income) loss0 .00 .00 
Income tax (benefit) expense on items excluded from adjusted earning(26)28 (.04).04 
Adjusted earnings953 942 1.55 1.44 
Current period foreign currency impact (2)
41 N/A.07 N/A
Adjusted earnings excluding current period foreign currency impact$994 $942 $1.62 $1.44 
  
In Millions Per Diluted Share In Millions Per Diluted Share 
  Three Months Ended September 30, Nine Months Ended September 30, 
 2017 2016 2017 2016 2017 2016 2017 2016  
Net earnings$716
 $629
 $1.80
 $1.53
 $2,021
 $1,908
 $5.05
 $4.59
  
Items impacting net earnings:                 
Realized investment (gains) losses:                 
Securities transactions and impairments(53) 37
 (.13) .09
 (33) (29) (.08) (.07)  
Certain derivative and foreign currency
(gains) losses
(2),(3),(4)
(18) 93
 (.05) .23
 90
 327
 .22
 .79
  
Other and non-recurring (income) loss (4)
10
 0
 .03
 .00
 38
 0
 .09
 .00
  
Income tax (benefit)
expense on items
excluded from operating
earnings
(2),(5)
21
 (46) .05
 (.11) (33) (104) (.08) (.25)  
Operating earnings676
 713
 1.70
 1.74
 2,083
 2,101
 5.20
 5.06
  
Current period foreign
currency impact
(6)
29
 N/A
 .07
 N/A
 31
 N/A
 .08
 N/A
  
Operating earnings excluding
current period foreign
currency impact
(7)
$705
 $713
 $1.77
 $1.74
 $2,114
 $2,101
 $5.28
 $5.06
  
(1) See reconciliation of net investment (gains) losses to adjusted net investment (gains) losses below.
(1) Amounts may not foot due to rounding.
(2)Excludes amortized hedge costs of $60 and $54 for the three-month periods and $168 and $123 for the nine-month periods ended September 30, 2017, and 2016, respectively, related to hedging U.S. dollar-denominated investments held in Aflac Japan which are classified as a component of operating earnings to conform to current year reporting. See "Hedge Costs" discussion below for further information.
(3) Excludes a gain of $19 and $20 for the three-month periods and $60 and $64 for the nine-month periods ended September 30, 2017 and 2016, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable which is classified as an operating gain when analyzing segment operations
(4) Foreign currency gains (losses) for all periods have been reclassified from other income (loss) to realized investment gains (losses) - certain derivative and foreign currency gains (losses) for consistency with current period presentation.
(5) Calculated using a 35% tax rate
(6) Prior period foreign currency impact reflected as “N/A” to isolate change for current period only.
(7) Amounts excluding current period foreign currency impact are computed using the average yen/dollar exchange ratePrior-year amounts have been adjusted for the comparable prior-year period, which eliminates dollar-based fluctuations driven solely from currency rate changes.adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.


RealizedReconciling Items

Net Investment Gains and Losses


Reconciliation of Net Investment (Gains) Losses to Adjusted Net Investment (Gains) Losses
Three Months Ended March 31,
(In millions)20232022
Net investment (gains) losses$(123)$(122)
Items impacting net investment (gains) losses:
Amortized hedge costs(58)(26)
Amortized hedge income29 11 
Net interest cash flows from derivatives associated
  with certain investment strategies
(69)(9)
Interest rate component of the change in fair value
  of foreign currency swaps on notes payable
12 13 
Adjusted net investment (gains) losses$(209)$(134)

The Company's investment strategy is to invest primarily in fixed-maturityfixed maturity securities to provide a reliable stream of investment income, which is one of the drivers of the Company’s growth and profitability. This investment strategy incorporates asset-liability matching (ALM) to align the expected cash flows of the portfolio to the needs of the Company's liability structure. The Company does not purchase securities with the intent of generating capitalinvestment gains or losses. However, investment gains and losses may be realized as a result of changes in the financial markets and the creditworthiness of specific issuers, tax planning strategies, and/or general portfolio management and rebalancing. The realization of investment gains and losses is independent of the underwriting and administration of the Company's insurance products.



Net investment gains and losses excluded from adjusted earnings include the following:

Securities Transactions
Credit Losses
Changes in the Fair Value of Equity Securities
Certain Derivative and Foreign Currency Activities.

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Securities Transactions, Credit Losses and ImpairmentsChanges in the Fair Value of Equity Securities


Securities transactions include gains and losses from sales and redemptions of investments where the amount received is different from the amortized cost of the investment. ImpairmentsCredit losses include other-than-temporary-impairment losses on investmentfor held-to-maturity fixed maturity securities, as well as changesavailable-for-sale fixed maturity securities, loan receivables, loan commitments and reinsurance recoverables. Changes in loan loss reserves for loan receivables.the fair value of equity securities are the result of gains or losses driven by fluctuations in market prices.


Certain Derivative and Foreign Currency Gains (Losses)Activities


The Company's derivative activities include include:

foreign currency forwards and options interest rate swaptions and futuresused in hedging foreign exchange risk on certain fixed-maturity securities; U.S. dollar-denominated investments in Aflac Japan's portfolio, with options used on a standalone basis and/or in a collar strategy;

foreign currency forwards and options thatused to economically hedge certain portions of forecasted cash flows denominated in yen and hedge the Company's long term exposure to a weakening yen;

cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and subordinated debentures; and

foreign currency swaps that are associated with variable interest entity (VIE) bond purchase commitments, and credit defaultsinvestments in special-purpose entities, including VIEs where the Company is the primary beneficiary;

interest rate swaps heldused to economically hedge interest rate fluctuations in certain variable-rate investments;

interest rate swaptions used to hedge changes in the fair value associated with interest rate fluctuations for certain U.S. dollar-denominated available-for-sale fixed-maturity securities; and

bond purchase commitments at the inception of investments in consolidated variable interest entities (VIEs). VIEs.

Gains and losses are recognized as a result of valuing these derivatives, net of the effects of hedge accounting. The Company also includesexcludes from adjusted earnings the accounting impacts of remeasurement associated with changes in the yen/dollar exchange rate as a non-operating item. Certain derivative and foreign currency gains (losses) exclude amortized hedge costs (see Hedge Cost section below) and the interest rate component of the change in fair value of foreign currency swaps on notes payable that are both classified as operating items.exchange rate.

Hedge Costs

Effective January 1, 2017, operating earnings includes the impact of amortized hedge costs. Amortized hedge costs represent costs incurred in using foreign currency forward contracts to hedge the foreign exchange risk of a portion of U.S. dollar-denominated assets in the Company's Japan segment investment portfolio. These amortized hedge costs are derived from the difference between the foreign currency spot rate at time of trade inception and the contractual foreign currency forward rate, recognized on a straight line basis over the term of the hedge. There is no comparable U.S. GAAP financial measure for amortized hedge costs. Prior year operating earnings have been revised to conform to this change. Beginning in 2016, the Company changed its non-U.S. GAAP reporting for these hedge costs by amortizing them evenly over the life of the foreign currency forward contracts. In 2016, the Company began increasing the duration of the foreign currency forward contracts used to hedge its U.S. dollar-denominated assets in Aflac Japan's investment portfolio to cover periods extending beyond one year. Therefore, recognizing these costs over the extended hedging periods provides a better measure of the Company's costs, and better reflects the economics of how hedge costs emerge over the life of the hedge. For additional information regarding the change in methodology for hedge costs, see the Hedge Costs subsection of MD&A in the 2016 Annual Report.

Hedge costs can fluctuate based upon many factors, including the derivative notional amount, the length of time of the derivative contract, changes in both U.S. and Japan interest rates, and supply and demand for dollar funding. Hedge costs have increased in recent periods due to changes in the previously mentioned factors.


For additional information regarding realizednet investment gains and losses, including details of reported amounts for the periods presented, see Notes 3 and 4 of the Notes to the Consolidated Financial Statements.


Other and Non-recurring Items


The United StatesU.S. insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. The system can result in periodic charges to the Company as a result of insolvencies/bankruptcies that occur with other companies in the life insurance industry. Some states permit member insurers to recover assessments paid through full or partial premium tax offsets. These charges neither relate to the ordinary course of the Company’s business nor reflect the Company’s underlying business performance, but result from external situations not controlled by the Company.

Based on the underlying nature of these assessments, effective January 1, 2017, the The Company adopted a policy of excludingexcludes any charges associated with U.S. guaranty fund assessments and the corresponding tax benefit or expense from operatingadjusted earnings.


ForIn Japan, the Penn Treaty liquidationgovernment also requires the insurance industry to contribute to a policyholder protection corporation that was recognized by judicial authorityprovides funds for the policyholders of insolvent insurers; however, these costs are calculated and administered differently than in March 2017,the U.S. In Japan, these costs are not directly related to specific insolvencies or bankruptcies, but are rather a regular operational cost for an insurance company. Based on this structure, the Company estimateddoes not remove the Japan policyholder protection expenses from adjusted earnings.

The Company considers the costs associated with the early redemption of its debt to be unrelated to the underlying fundamentals and recognized a discounted liabilitytrends in its insurance operations. Additionally, these costs are driven by changes in interest rates subsequent to the issuance of the debt, and the Company considers these interest rate changes to represent economic conditions not directly associated with its insurance operations.
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Income Taxes

The Company's combined U.S. and Japanese effective income tax rate on pretax earnings was 11.5% for assessments of $62 million (undiscounted $94 million), offset by discounted premium tax credits of $48 million (undiscounted $74 million), for a net $14 million impact to net income in the quarterthree-month period ended March 31, 2017. Guaranty fund assessments2023, compared with 19.1% for the same period in 2022. The combined effective tax rate differs from the U.S. statutory rate primarily due to historic and solar tax credits and the exclusion of foreign currency translation gains and losses held in the second and third quarters of 2017 were immaterial.Delaware Statutory Trust. For additional information, regarding guaranty fund assessments, see Note 12the Critical Accounting Estimates - Income Taxes section of Item 7. MD&A in the 2022 Annual Report.

The Company expects that its effective tax rate on adjusted earnings for future periods will be approximately 20%. The effective tax rate continues to be subject to future tax law changes both in the U.S. and in foreign jurisdictions. See the risk factor entitled "Tax rates applicable to the Company may change" in Item 1A. Risk Factors of the Notes to the Consolidated Financial Statements.2022 Annual Report for more information.


Effective January 1, 2017, nonrecurring items also include conversion costs related to legally converting the Company's Japan business to a subsidiary; these costs primarily consist of expenditures for legal, accounting, consulting, integration of systems and processes and other similar services. These Japan branch conversion costs amounted to $10 million in the three-month period and $24 million for the nine-month period ended September 30, 2017.


Foreign Currency Translation


Aflac Japan’s premiums and a significant portion of its investment income are received in yen, and its claims and most expenses are paid in yen. Aflac Japan purchases yen-denominated assets and U.S. dollar-denominated assets, which may be hedged to yen, to support yen-denominated policy liabilities. These and other yen-denominated financial statement items are, however, translated into dollars for financial reporting purposes. The Company translates Aflac Japan’s yen-denominatedYen-denominated income statement intoaccounts are translated to U.S. dollars using the weighted average Japanese yen/U.S. dollar foreign exchange rate for the reporting period, except realized gains and losses on securities transactions which are translated at the Company translates its yen-denominatedexchange rate on the trade date of each transaction. Yen-denominated balance sheet accounts are translated to U.S. dollars using the spot Japanese yen/U.S. dollar foreign exchange rate at the end of the reporting period.
Due to the size of Aflac Japan, whose functional currency is the Japanese yen, fluctuations in the yen/dollar exchange rate can have a significant effect on the Company's reported results. In periods when the yen weakens, translating yen into dollars results in fewer dollars being reported. When the yen strengthens, translating yen into dollars results in more dollars being reported. Consequently, yen weakening has the effect of suppressing current period results in relation to the comparable prior period, while yen strengthening has the effect of magnifying current period results in relation to the comparable prior period. Because changes in exchange rates distort the Company's operating results when translated into dollars, management evaluates the Company's financial performance excluding the impact of foreign currency translation.

Income TaxesRESULTS OF OPERATIONS BY SEGMENT


The Company's combined U.S. and Japanese effective income tax rate on pretax earnings was 33.4% for the three-month period ended September 30, 2017, compared with 34.7% for the same period in 2016. The decline in the quarterly tax rate was primarily due to the adoption of a new accounting standard related to stock compensation. The Company's combined U.S. and Japanese effective tax rate on pretax earnings was 33.1% for the nine-month period ended September 30, 2017, compared with 34.5% for the same period in 2016. The decline in the year-to-date tax rate was primarily due to a $24 million favorable resolution of uncertain tax positions related to tax years that closed in 2017, in addition to benefits associated with filing amended tax returns and the adoption of new accounting guidance related to stock compensation.

INSURANCE OPERATIONS

Aflac's insurance business consists of two segments: Aflac Japan and Aflac U.S. Aflac Japan, which operates as a branch of Aflac, is the principal contributor to consolidated earnings. U.S. GAAP financial reporting requires that a company report financial and descriptive information about operating segments in its annual and interim period financial statements. Furthermore, the Company is required to report a measure of segment profit or loss, certain revenue and expense items, and segment assets. The Company's insurance business consists of two segments: Aflac Japan and Aflac U.S. Aflac Japan is the principal contributor to consolidated earnings. In addition, the Parent Company, other business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other. See Item 1. Business in the 2022 Annual Report for a summary of each segment's products and distribution channels.


WeConsistent with U.S. GAAP guidance for segment reporting, pretax adjusted earnings is the Company's U.S. GAAP measure of segment performance. The Company believes that a presentation of this measure is vitally important to an understanding of the underlying profitability drivers and trends of its business. Additional performance measures used to evaluate the financial condition and performance of the Company's sales efforts using new annualized premium sales, an industry operating measure. segments are listed below.

Operating Ratios
New annualized premium sales, which include both new salesAnnualized Premium Sales
New Money Yield
Return on Average Invested Assets
Average Weekly Producer
Premium Persistency

For additional information on the Company’s performance measures included in this MD&A, see the Glossary of Selected Terms found directly following Part II. Other Information. See Note 2 of the Notes to the Consolidated Financial Statements for the reconciliation of segment results to the Company's consolidated U.S. GAAP results and the incremental increase in premiums due to conversions, generally represent the premiums that the Company would collect over a 12-month period, assuming the policies remain in force. For Aflac Japan, new annualized premium sales are determined by applications submitted during the reporting period. For Aflac U.S., new annualized premium sales are determined by applications that are issued during the reporting period. Premium income, or earned premiums, is a financial performance measure that reflects collected or due premiums that have been earned ratably on policies in force during the reporting period.additional information.

82


AFLAC JAPAN SEGMENT
Aflac Japan Pretax OperatingAdjusted Earnings
Changes in Aflac Japan’s pretax operatingadjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac Japan.


Aflac Japan Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$2,170 $2,625 
Net investment income: (1)
Yen-denominated investment income263 299 
U.S. dollar-denominated investment income407 406 
Net investment income669 705 
Amortized hedge costs related to certain foreign currency exposure management strategies(58)26 
Adjusted net investment income611 680 
Other income (loss)9 
Total adjusted revenues2,790 3,314 
Benefits and claims:
Benefits and claims, excluding reserve remeasurement1,466 1,793 
Reserve remeasurement (gains) losses(13)(14)
Total benefits and claims, net1,453 1,779 
Adjusted expenses:
Amortization of deferred policy acquisition costs85 94 
Insurance commissions138 161 
Insurance and other expenses326 409 
Total adjusted expenses549 664 
Total benefits and adjusted expenses2,002 2,443 
           Pretax adjusted earnings$788 $870 
Weighted-average yen/dollar exchange rate132.30 116.18 
  
Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions)2017 2016 2017 2016 
Net premium income$3,200
 $3,596
 $9,616
 $10,177
 
Net investment income:        
Yen-denominated investment income326
 356
 972
 1,015
 
U.S. dollar-denominated investment income295
 305
 872
 910
 
Net investment income621
 661
 1,844
 1,925
 
Amortized hedge costs related to foreign currency denominated
investments
60
 54
 168
 123
 
Net investment income, less amortized hedge costs561
 607
 1,676
 1,802
 
Other income (loss)11
 10
 31
 29
 
Total operating revenues3,772
 4,213
 11,323
 12,008
 
Benefits and claims, net2,300
 2,603
 6,859
 7,341
 
Operating expenses:        
Amortization of deferred policy acquisition costs155
 166
 477
 484
 
Insurance commissions186
 208
 559
 593
 
Insurance and other expenses383
 409
 1,120
 1,154
 
Total operating expenses724
 783
 2,156
 2,231
 
Total benefits and expenses3,024
 3,386
 9,015
 9,572
 
           Pretax operating earnings(1)
$748
 $827
 $2,308
 $2,436
 
Weighted-average yen/dollar exchange rate111.03
 102.37
 111.89
 108.58
 
In DollarsIn Yen
Percentage change over
 previous period:
Three Months Ended March 31,Three Months Ended March 31,
2023202220232022
Net earned premiums(17.3)%(11.5)%(5.9)%(2.8)%
Adjusted net investment income(10.1)(3.6)2.4 5.9 
Total adjusted revenues(15.8)(10.0)(4.1)(1.2)
Pretax adjusted earnings(9.4)(5.0)3.2 4.7 
 In DollarsIn Yen
Percentage change over
 previous period:
Three Months Ended September 30, Nine Months Ended September 30,Three Months Ended September 30, Nine Months Ended September 30,
2017 2016 2017 20162017 2016 2017 2016
Net premium income(11.0)% 20.6% (5.5)% 12.6%(3.5)% 1.1 % (2.4)% 1.0 %
Net investment income,
less amortized hedge
costs
(7.6) 3.1
 (7.0) 1.4
1.1
 (14.1) (3.4) (9.4)
Total operating revenues(10.5) 17.8
 (5.7) 10.8
(2.8) (1.4) (2.5) (.7)
  Pretax operating
     earnings(1)
(9.6) 7.2
 (5.3) 5.0
(1.3) (10.6) (1.8) (5.9)
(1) Aflac defines pretax operating earnings (a non-U.S. GAAP financial measure) as operating earnings before the applicationNet interest cash flows from derivatives associated with certain investment strategies of income taxes. See the Results of Operations section of this MD&A$(62) and $(10) for the Company's definitionthree-month periods ended March 31, 2023 and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of operating earnings.net investment income.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In yen terms, Aflac Japan's net premium income decreased in the three-month period ended September 30, 2017, with growthMarch 31, 2023, Aflac Japan's net earned premiums decreased, in third sector premium more than offset by an anticipated reduction in first sector premiumyen terms, mainly due to savingslimited-pay products reaching premium paid-up status inand the period. Netimplementation of the Aflac Re global reinsurance strategy. Adjusted net investment income, net of amortized hedge costs,in yen terms, increased in the three-month period ended September 30, 2017,March 31, 2023, primarily due to the foreign currency impact of foreign exchange on U.S. dollar-denominated investments. The increases in net investment income from the strengthening U.S. dollar were partiallyinvestments offset by lower re-investment rateshigher hedge costs. The increase in pretax adjusted earnings in yen for the three-month period ended March 31, 2023 was primarily due to a decrease in total benefits and increased amortized hedge costs.adjusted expenses.

Annualized premiums in force decreased 3.7%4.8% to 1.56¥1.28 trillion yen as of September 30, 2017,March 31, 2023, compared with 1.62¥1.35 trillion yen as of September 30, 2016.March 31, 2022. The decrease in annualized premiums in force in yen was driven primarily by limited-pay products

83


limited-pay policies becomingreaching premium paid-up during the year.status and lower sales. Annualized premiums in force, translated into dollars at respective period-end exchange rates, were $13.8$9.6 billion at September 30, 2017,March 31, 2023, compared with $16.0$11.0 billion a year ago, reflecting the weaker yen to U.S. dollar exchange rate.at March 31, 2022. As of March 31, 2023, Aflac Japan exceeded 23 million individual policies in force in Japan, with more than 14 million cancer policies in force in Japan.

Aflac Japan's investment portfolios include U.S. dollar-denominated securities and reverse-dual currency securities (yen-denominated debt securities with dollar coupon payments). In years when the yen strengthens in relation to the dollar, translating Aflac Japan's U.S. dollar-denominated investment income into yen lowers growth rates for net investment income, total operatingadjusted revenues, and pretax operatingadjusted earnings in yen terms. In years when the yen weakens, translating U.S. dollar-denominated investment income into yen magnifies growth rates for net investment income, total operatingadjusted revenues, and pretax operatingadjusted earnings in yen terms.

The following table illustrates the effect of translating Aflac Japan’s U.S. dollar-denominated investment income and related items into yen by comparing certain segment results with those that would have been reported had yen/dollarforeign currency exchange rates remained unchanged from the comparable period in the prior year. In order to compare the current period to the prior period without the impact ofAmounts excluding foreign currency impact on U.S. dollar-denominated investment income were determined using the current period income statement is translated ataverage foreign currency exchange rate for the comparable prior year's comparable period average exchange rate.year period. See non-U.S. GAAP financial measures defined above.
Aflac Japan Percentage Changes Over Previous Period
(Yen Operating Results)
For the Periods Ended September 30,March 31,
  
Including Foreign
Currency Changes
Excluding Foreign
Currency Changes
Three MonthsThree Months
  
2023202220232022
Adjusted net investment income2.4 %5.9 %(5.9)%.3 %
Total adjusted revenues(4.1)(1.2)(5.8)(2.3)
Pretax adjusted earnings3.2 4.7 (3.0).5 
  
Including Foreign
Currency Changes
  
Excluding Foreign
Currency Changes(2)
 Three Months  Nine Months Three Months  Nine Months
  
2017
  2016
  2017
  2016  2017  2016  2017  2016
 
Net investment income, less
amortized hedge costs
1.1
% (14.1)% (3.4)% (9.4)% (3.2)% (5.8)% (4.9)% (4.2)%
Total operating revenues(2.8)  (1.4)  (2.5)  (.7)  (3.4)  .0
  (2.8)  .2
 
Pretax operating earnings(1)
(1.3)  (10.6)  (1.8)  (5.9)  (4.4)  (4.4)  (2.9)  (2.1) 
(1) Aflac defines pretax operating earnings (a non-U.S. GAAP financial measure) as operating earnings before the application of income taxes. See the Results of Operations section of this MD&APrior-year amounts have been adjusted for the Company's definitionadoption of operating earnings.accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
(2) Amounts excluding foreign currency impact on U.S. dollar-denominated items (a non-U.S. GAAP measure) were determined using the same yen/dollar exchange rate for the current period as the comparable period in the prior year.
The following table presents a summary of operating ratios in yen terms for Aflac Japan.
  
Three Months Ended March 31,
Ratios to total adjusted revenues:20232022
Total benefits and claims, net52.1 %53.7 %
Adjusted expenses:
Amortization of deferred policy acquisition costs3.1 2.8 
Insurance commissions4.9 4.8 
Insurance and other expenses11.7 12.4 
Total adjusted expenses19.7 20.0 
Pretax adjusted earnings28.2 26.2 
Ratios to total premiums:
Total benefits and claims, net67.0 %67.9 %
Adjusted expenses:
Amortization of deferred policy acquisition costs3.9 3.6 
  
Three Months Ended
September 30,
  Nine Months Ended
September 30,
  
Ratios to total revenues:2017  2016  2017  2016  
Benefits and claims, net60.9% 61.9% 60.5% 61.1% 
Operating expenses:            
Amortization of deferred policy acquisition costs4.1  3.9  4.2  4.0  
Insurance commissions4.9  4.9  4.9  4.9  
Insurance and other expenses10.1  9.7  9.9  9.7  
Total operating expenses19.2  18.5  19.0  18.6  
  Pretax operating earnings(1)
19.9  19.6  20.4  20.3  
(1) Aflac defines pretax operating earnings (a non-U.S. GAAP financial measure) as operating earnings before the application of income taxes. See the Results of Operations section of this MD&APrior-year amounts have been adjusted for the Company's definitionadoption of operating earnings.accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.


In the three-three-month period ended March 31, 2023, the total benefits and nine-month periods ended September 30, 2017, the benefitclaims ratio to total premiums decreased, compared with the same respective periodsperiod in the prior year, primarily due to a decrease in the third sector benefit ratio due to favorable experience and the continued change in the mix of first and third sector business as first sector products become paid-upbusiness. In the three-month period ended March 31, 2023, the total adjusted expense ratio decreased slightly, compared with the same period in the prior year, reflecting the decrease in total adjusted revenues and a de-emphasis on first sector savings products,an offsetting decrease in total adjusted expenses due to expense control efforts as well as continued favorable claims experience.In the three- and nine-month periods ended September 30, 2017, the operating expense ratio increased primarily due to lower premium income impacted by first sector products becoming paid-up, however expenses incurred remained consistent.reinsurance transaction with Aflac Re. In total, the pretax operatingadjusted profit margin
84


increased in the three-three-month period ended March 31, 2023 primarily due to a lower benefit ratio and nine-month periods ended September 30, 2017, reflecting thea lower expense ratio and an offsetting decrease in the benefit ratio partially offset bytotal adjusted revenues.

The following table presents Aflac Japan's premium persistency on a smaller increase in the expense12-month rolling basis as of March 31.

20232022
Premium persistency93.9 %94.3 %
ratio. For the full year of 2017, the Company anticipates the Aflac Japan pretax operating profit margin (calculated by dividing operating earnings by operating revenues) to be comparable to 2016 levels.

Aflac Japan Sales

The following table presents Aflac Japan’s new annualized premium sales for the periods ended September 30.March 31.
  
In DollarsIn Yen
Three MonthsThree Months
(In millions of dollars and billions of yen)2023202220232022
New annualized premium sales$100 $103 ¥13.2 ¥11.9 
Increase (decrease) over prior period(3.2)%(22.4)%10.8 %(14.8)%
  
In DollarsIn Yen
 Three Months Nine Months Three MonthsNine Months 
(In millions of dollars and billions of yen)2017 2016 2017 2016 2017 20162017 2016 
New annualized premium sales$214
 $259
 $637
 $809
 23.7
 26.5
71.2
 87.9
 
Increase (decrease) over prior period(17.3)% (.1)% (21.3)% 9.8% (10.5)% (16.2)%(19.0)% (1.4)% 

In 2023, the new annualized premium sales on a yen basis increased, compared with 2022, due primarily to sales of Aflac Japan's new cancer insurance product and updated first sector products, all of which were launched in the second half of 2022. Further, these products were launched at Dai-ichi Life and other financial institutions in January 2023.

The following table details the contributions to Aflac Japan's new annualized premium sales by major insurance product for the periods ended September 30.March 31.
  Three Months
  20232022
Cancer59.9 %53.0 %
Medical and other health:
Medical20.8 31.4 
Income support.6 1.1 
Life insurance:
Traditional life (1)
7.3 9.0 
WAYS8.9 .7 
Child endowment.6 .3 
Other1.9 4.5 
    Total100.0 %100.0 %
  
Three Months  Nine Months 
  
2017  2016  2017  2016 
Cancer58.2%  52.9%  54.9%  44.3% 
Medical32.9
  26.2
  35.0
  25.7
 
Ordinary life:

          
WAYS.4
  5.7
  .6
  15.3
 
Other ordinary life5.1
  6.4
  6.0
  5.9
 
Child endowment.4
  4.5
  .6
  6.3
 
Income support2.5
  .0
  2.2
  .0
 
Other.5
  4.3
  .7
  2.5
 
Total100.0%  100.0%  100.0%  100.0% 
(1) Includes term and whole life

The foundation of Aflac Japan's product portfolio has been, and continues to be, third sector products, which include cancer, medical, income support, and Income Supportnursing care insurance products. Sales of third sector products on a yen basis increased 2.1% during the third quarter and increased 5.0% in the first nine months of 2017, compared with the same respective periods in 2016. Aflac Japan has been focusing more on promotion of cancer and medical insurance products in this low-interest-rate environment. These products are less interest-rate sensitive and more profitable compared to first sector products. With continued cost pressure on Japan’s health care system, the Company expects the need for third sector products will continue to rise in the future and that the medical and cancer insurance products Aflac Japan provides will continue to be an important part of its product portfolio.
As a result of the interest rate policy Moreover, in Japan,November 2022, Aflac Japan has taken significant actionsrefreshed its first sector savings-type products WAYS and Child Endowment and began to limit itsactively promote sales of certainthese products after having curtailed sales of both products beginning in 2013. The refreshment of these first sector products including WAYS and child endowment. Those actions gained traction in mid-2016, andposition Aflac Japan for potential future long-term sales opportunities by marketing these products to a younger demographic as a result first sector product sales were down 66.7% in the third quarterwell as potential cross-selling opportunities of 2017, compared with the same period in the prior year. The Company expects that for the remainder of 2017, this deliberate trend will continue, and Aflac Japan's focus will remain on less interest-sensitive third sector products.
Independent corporate agencies
Sales of Aflac Japan cancer insurance products in the Japan Post Group channel experienced a material decline beginning in August 2019. Japan Post Group resumed proactive sales of cancer insurance policies in April 2021 and individual agencies contributed 39.9%Aflac Japan continues to strengthen the strategic alliance. In April 2023, Japan Post Group began selling Aflac Japan's new cancer insurance product that was launched in August 2022. For additional information, see the risk factor entitled "Sales of totalthe Company's products and services are dependent on its ability to attract, retain and support a network of qualified sales associates, brokers and employees in the U.S. and sales associates and other distribution partners in Japan," in Item 1A. Risk Factors in the 2022 Annual Report.
85



Aflac Japan continues to promote digital and web-based sales to groups and use of its system that enables smart device-based insurance application by allowing the customer and an Aflac Japan operator to see the same screen through their smart devices. Further, Aflac Japan continues to utilize its virtual sales tool that enables online consultations and policy applications to be completed entirely online.

The following table details the contributions to Aflac Japan's new annualized premium sales for Aflac Japan in the third quarter of 2017, compared with 43.0%by agency type for the same period in 2016. Affiliated corporate agencies, which includethree-month periods ended March 31.
20232022
Independent corporate and individual50.9 %48.9 %
Affiliated corporate (1)
45.4 46.5 
Bank3.7 4.6 
Total100.0 %100.0 %
(1) Includes Japan Post contributed 53.3% of total new annualized premium sales in the third quarter of 2017, compared with 50.1% in the third quarter of 2016. Japan Post offers Aflac's cancer insurance products in more than 20,000 post offices. The Company believes this alliance with Japan Post hasGroup, Dai-ichi Life and will further benefit its cancer insurance sales. Daido Life

During the three-month period ended September 30, 2017,March 31, 2023, Aflac Japan recruited 384 new sales agencies. At September 30, 2017,March 31, 2023, Aflac Japan was represented by more than 11,200approximately 7,300 sales agencies, and more than 107,000with approximately 110,000 licensed sales associates employed by those agencies. The number of sales agencies has declined in recent years due to Aflac Japan's focus on supporting agencies with strong management frameworks, high productivity and more producing agents.

At September 30, 2017,March 31, 2023, Aflac Japan had agreements to sell its products at 374359 banks, approximately 90% of the total number of banks in Japan. Bank channel sales accounted for 6.8% of new annualized premium sales in the third quarter of 2017 for Aflac Japan, compared with 6.9% during the third quarter of 2016.



Aflac Japan Investments


The level of investment income in yen is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, the effect of yen/dollar exchange rates on U.S. dollar-denominated investment income, and other factors.


As part of the Company's portfolio management and asset allocation process, Aflac Japan invests in yen and U.S. dollar-denominated investments. Yen-denominated investments primarily consist of JGBs, public and private fixed maturity securities and public equity securities. Aflac Japan's U.S. dollar-denominated investments fixed-maturityinclude fixed maturity investments and growth assets, including public equities and alternative investments in limited partnerships or similar investment vehicles. Aflac Japan has been investing in both publicly-tradedpublicly traded and privately originated U.S. dollar-denominated investment-grade and below-investment-grade fixed-maturityfixed maturity securities and loans,loan receivables, and has entered into foreign currency forwards and options to hedge the currency risk on the fair value of a portion of the U.S. dollar investments.


86


The following table details the investment purchases for Aflac Japan.
  Three Months Ended
September 30,
Nine Months Ended
September 30,
(In millions) 2017 2016 2017 2016 
Yen-denominated:         
  Fixed maturities:         
     Japan government and agencies $212
 $125
 $3,439
 $2,395
 
     Other fixed maturities 359
 128
 1,268
 279
 
  Equities (1)
 21
 65
 173
 257
 
        Total yen-denominated $592
 $318
 $4,880
 $2,931
 
          
U.S. dollar-denominated:         
  Fixed maturities:         
     Other fixed maturities $138
 $9
 $219
 $602
 
     Infrastructure debt 40
 0
 134
 0
 
     Bank loans (2)
 0
 0
 0
 535
 
  Equities (1)
 2
 0
 153
 504
 
  Other investments:         
     Middle market loans 186
 8
 437
 8
 
     Commercial mortgage loans 85
(3) 
329
 279
(3) 
512
 
     Limited partnerships 24
 0
 65
 0
 
        Total dollar-denominated $475
 $346
 $1,287
 $2,161
 
            Total Aflac Japan purchases $1,067
 $664
 $6,167
 $5,092
 
Three Months Ended March 31,
(In millions)20232022
Yen-denominated:
  Fixed maturity securities:
     Japan government and agencies$151 $
     Private placements273 307 
     Other fixed maturity securities77 17 
  Equity securities123 91 
  Other investments6 
        Total yen-denominated$630 $418 
U.S. dollar-denominated:
  Fixed maturity securities:
     Other fixed maturity securities$376 $85 
     Collateralized loan obligations0 67 
  Commercial mortgage and other loans:
     Transitional real estate loans53 507 
     Middle market loans150 311 
  Other investments137 48 
        Total U.S. dollar-denominated$716 $1,018 
            Total Aflac Japan purchases$1,346 $1,436 
(1)Primarily rebalancing activity in 2017 and includes rebalancing activity in 2016
(2)Represents funding made to unit trust structures
(3) Includes $85 and $231 of transitional real estate (TRE) loans for the three- and nine-month periods ended September 30, 2017, respectively.

Aflac Japan's yen-denominated private placement portfolio had declined over the last several years as a result of call and maturity activity and no reinvestment activity. However, beginning in 2016 and continuing into 2017, Aflac Japan began to selectively purchase yen-denominated private placements. In the first nine months of 2017, Aflac Japan purchased $886 million of yen-denominated private placements, after purchasing $268 million for the full year of 2016.


See the Analysis of Financial ConditionInvestments section of this MD&A for further discussion of these investment programs, and see Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report for more information regarding loans and loan receivables.



The following table presents the results of Aflac Japan’s investment yields for the periods ended September 30.March 31.
  Three Months
  20232022
Total purchases for the period (in millions) (1)
$1,203 $1,385 
New money yield (1),(2)
5.18 %3.90 %
Return on average invested assets (3)
2.57 2.54 
Portfolio book yield, including U.S. dollar-denominated investments, end of period (1),(2)
3.13 %2.62 %
  
Three Months Nine Months 
  
2017
  2016
  2017
  2016
 
Total purchases for the period (in millions) (1)
$1,043
  $664
  $6,102
  $5,092
 
New money yield (1), (2)
3.02
% 2.22
% 1.79
% 1.96
%
Return on average invested assets (3)
2.29
  2.38
  2.31
  2.55
 
Portfolio book yield, including U.S. dollar-denominated investments,
   end of period (1)
2.55
% 2.71
% 2.55
% 2.71
%
(1) Includes fixed maturitiesmaturity securities, commercial mortgage and perpetualother loans, equity securities, loan receivables, equities, and excludes alternative investments in limited partnerships
(2) Reported on a gross yield basis; excludes investment expenses, external management fees, and amortized hedge costs
(3) Net of investment expenses and amortized hedge costs, year-to-date number reflected on a quarterly average basis

On January 1, 2016, the company revised its definition of purchases to include the reinvestment of proceeds related to unplanned sale activity. New purchases include all purchases related to fixed maturities and perpetuals, loan receivables, and equities. Securities lending/repurchase agreement activity and capital contributions to alternatives are excluded. The definition of new money yield has also been revised to reflect this change. Yields for equities are based on the assumed dividend yield at the time of purchase.


The increase in the Aflac Japan new money yield in the three-month period ended September 30, 2017March 31, 2023 was primarily due to increases in U.S. and Japan interest rates, compared with the same period in 2016, and increased allocations to higher-yielding U.S. dollar-denominated asset classes. The decrease in the Aflac Japan new money yield in the nine-month period ended September 30, 2017 was primarily due to the increased allocation to Japan Government Bonds (JGBs) and other high quality yen-denominated investments.

rates. See Notes 3, 4 and 5 of the Notes to the Consolidated Financial Statements and the Analysis of Financial Condition sectionInvestments and Hedging Activities sections of this MD&A for additional information on the Company's investments and hedging strategies.


AFLAC U.S. SEGMENT
Aflac U.S. Pretax OperatingAdjusted Earnings
Changes in Aflac U.S. pretax operatingadjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac U.S.

87


Aflac U.S. Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$1,428 $1,413 
Adjusted net investment income (1)
197 184 
Other income35 42 
Total adjusted revenues1,660 1,639 
Benefits and claims:
Benefits and claims, excluding reserve remeasurement691 686 
Reserve remeasurement (gains) losses(40)(20)
Total benefits and claims651 666 
Adjusted expenses:
Amortization of deferred policy acquisition costs119 114 
Insurance commissions142 140 
Insurance and other expenses395 387 
Total adjusted expenses657 640 
Total benefits and adjusted expenses1,308 1,306 
             Pretax adjusted earnings$352 $333 
Percentage change over previous period:
Net earned premiums1.1 %(.6)%
Adjusted net investment income7.1 4.5 
Total adjusted revenues1.3 .7 
Pretax adjusted earnings5.7 .6 
  
Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions)2017 2016 2017 2016 
Net premium income$1,393
 $1,365
 $4,172
 $4,093
 
Net investment income181
 176
 539
 526
 
Other income1
 1
 3
 5
 
Total operating revenues1,575
 1,542
 4,714
 4,624
 
Benefits and claims731
 715
 2,156
 2,148
 
Operating expenses:        
Amortization of deferred policy acquisition costs116
 116
 371
 373
 
Insurance commissions146
 145
 436
 439
 
Insurance and other expenses266
 243
 795
 718
 
Total operating expenses528
 504
 1,602
 1,530
 
Total benefits and expenses1,259
 1,219
 3,758
 3,678
 
             Pretax operating earnings(1)
$316
 $323
 $956
 $946
 
Percentage change over previous period:        
Net premium income2.1
%1.4
%1.9
%1.9
%
Net investment income2.8
 1.7
 2.5
 3.7
 
Total operating revenues2.1
 1.4
 1.9
 2.1
 
  Pretax operating earnings(1)
(2.2) 12.4
 1.1
 9.5
 
(1) Aflac defines pretax operating earnings (a non-U.S. GAAP financial measure) as operating earnings before the applicationNet interest cash flows from derivatives associated with certain investment strategies of income taxes. See the Results of Operations section of this MD&A$(7) and $1 for the Company's definitionthree-month periods ended March 31, 2023 and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of operating earnings.net investment income.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, net earned premiums for Aflac U.S. increased primarily driven by continued investments in growth initiatives. Adjusted net investment income increased in the three-month period ended March 31, 2023 primarily due to higher floating rate income due to higher volumes and rates. The increase in pretax adjusted earnings in the three-month period ended March 31, 2023 was driven primarily by lower benefits and higher revenues, partially offset by higher expenses.

Annualized premiums in force increased 2.6%1.4% to $6.0 billion at March 31, 2023, compared with $5.9 billion at September 30, 2017, compared with $5.8 billion at September 30, 2016, reflecting improving sales and persistency.March 31, 2022.
88


The following table presents a summary of operating ratios for Aflac U.S.
  
Three Months Ended March 31,
Ratios to total adjusted revenues:20232022
Total benefits and claims39.2 %40.7 %
Adjusted expenses:
Amortization of deferred policy acquisition costs7.2 7.0 
Insurance commissions8.6 8.5 
Insurance and other expenses23.8 23.5 
Total adjusted expenses39.6 39.0 
  Pretax adjusted earnings21.2 20.3 
Ratios to total premiums:
Total benefits and claims45.6 %47.1 %
Adjusted expenses:
Amortization of deferred policy acquisition costs8.3 8.1 
  
Three Months Ended
September 30,
  Nine Months Ended
September 30,
 
Ratios to total revenues:2017  2016  2017  2016 
Benefits and claims46.4% 46.4% 45.7% 46.5%
Operating expenses:           
Amortization of deferred policy acquisition costs7.4  7.5  7.9  8.1 
Insurance commissions9.3  9.4  9.2  9.5 
Insurance and other expenses16.9  15.8  16.9  15.4 
Total operating expenses33.5  32.7  34.0  33.0 
  Pretax operating earnings(1)
20.1  20.9  20.3  20.5 
(1) Aflac defines pretax operating earnings (a non-U.S. GAAP financial measure) as operating earnings before the application of income taxes. See the Results of Operations section of this MD&APrior-year amounts have been adjusted for the Company's definitionadoption of operating earnings.accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
The benefit ratio in
For the three-month period ended September 30, 2017 was consistent withMarch 31, 2023, the same period in 2016. The benefittotal benefits and claims ratio in the nine-month period ended September 30, 2017to total premiums decreased slightly, compared with the same period in 2016. For2022, reflecting assumption updates in the three-third quarter of 2022 and nine-month periods ended September 30, 2017, the operatingreserve remeasurement gains related to experience. The total adjusted expense ratio was somewhat elevated compared to 2016, reflecting larger investmentincreased in the Aflac U.S. platform. The higher expenses are partially offset by decreasing amortization and commission expense ratios. Therefore, the pretax operating profit margin (calculated by dividing operating earnings by operating revenues) decreased slightly for the three- and nine-month periodsthree-month period ended September 30, 2017,March 31, 2023, when compared with the same periodsperiod in 2016. For2022, primarily due to higher planned spending, reflecting ongoing investments in the full year of 2017,U.S. platform and higher DAC amortization associated with lower persistency. The pretax adjusted profit margin increased in the Company expectsthree-month period ended March 31, 2023, compared with the same period in 2022, primarily due to the lower benefit ratio.

The following table presents premium persistency for Aflac U.S. benefit ratio to be slightly lower than full year 2016, while expense ratios are expected to increase marginallyon a 12-month rolling basis as Aflac U.S. continues to invest in its platform and shift some of its costs from commissions to insurance expenses.March 31.

20232022
Premium persistency77.9 %78.7 %

Aflac U.S. Sales
The following table presents Aflac's U.S. new annualized premium sales for the periods ended September 30.March 31.
Three Months
(In millions)20232022
New annualized premium sales$315 $299 
Increase (decrease) over prior period5.3 %19.0 %
 Three Months      Nine Months 
(In millions)2017  2016
  2017  2016
  
New annualized premium sales$348
  $324
  $1,037
  $999
  
Increase (decrease) over prior period7.5
% (1.8)% 3.8
% .9
% 

New annualized premium sales for accident insurance decreased 1.8%; disability sales increased 13.8%; critical care insurance sales (including cancer insurance) increased 1.8%; hospital indemnity insurance sales increased .2%; dental/vision sales increased 22.7%; and life sales increased 10.3% in the first quarter of 2023, compared with the first quarter of 2022. The increase in sales for Aflac U.S. in the three-month and nine-month periods ended September 30, 2017, was driven by increasesfirst quarter of 2023 reflects continued improvement from investment in both career and broker channels.growth initiatives as well as productivity gains.
89


The following table details the contributions to Aflac's U.S. new annualized premium sales by major insurance product category for the periods ended September 30.March 31.
  
Three Months
20232022
Accident23.5 %25.3 %
Disability25.2 23.3 
 Critical care(1)
20.5 21.2 
Hospital indemnity15.9 16.7 
Dental/vision6.6 5.6 
Life8.3 7.9 
Total100.0 %100.0 %
  
Three Months      Nine Months 
 2017  2016  2017  2016  
Income-loss protection:            
Short-term disability23.6% 25.0% 24.1% 23.9% 
Life5.5  5.4  5.4  5.5  
Asset-loss protection:            
Accident29.9  29.9  29.6  30.0  
  Critical care(1)
21.8  19.9  21.2  20.9  
Supplemental medical:            
Hospital indemnity14.1  14.1  14.0  14.1  
Dental/vision5.1  5.7  5.7  5.6  
Total100.0% 100.0% 100.0% 100.0% 
(1) Includes cancer, critical illness, and hospital intensive care products

New annualized premium sales for accident insurance, the Aflac U.S. leading product category, increased 7.5%; short-term disability sales increased 1.2%; critical care insurance sales (including cancer insurance) increased 17.1%; and hospital indemnity insurance sales increased 7.3% in the third quarter of 2017, compared with the same period in 2016.

The addition of group products has expanded Aflac U.S.'s reach and enabled Aflac U.S. to generate more sales opportunities with larger employers and through broker and traditional sales agent channels. The Company anticipates that the appeal of Aflac U.S. group products will continue to enhance opportunities to connect with larger businesses and their employees. The Aflac U.S. portfolio of group and individual products offers businesses the opportunity to give their employees a more valuable and comprehensive selection of benefit options.


In the thirdfirst quarter of 2017,2023, the Aflac U.S. sales force included an average of approximately 8,5006,100 U.S. agents, including brokers, who were actively producing business on a weekly basis. The Company believes that this metric, the average weekly producer equivalent metric allows sales management to monitor progress and needs.

One Day PaySM is a claims initiative that we have focused on at Aflac U.S. to process, approve and pay eligible claims in just one day. The Company believes that this claims practice enhances the Aflac U.S. brand reputation and the trust policyholders have in Aflac, and it helps Aflac stand out from competitors.

Aflac U.S. products provide cash benefits that can be used to help with increasing out-of-pocket medical expenses, help cover household costs, or protect against income and asset loss. Group products and relationships with insurance brokers that handle the larger-case market are helping Aflac U.S. expand its reach by selling to larger businesses. Aflac U.S. is regularly evaluating the marketplace to identify opportunities to bring the most relevant, cost-effective products to customers. The Company believes the need for its products remains very strong, and Aflac U.S. continues to work on enhancing its distribution capabilities to access employers of all sizes, including initiatives that benefit the field force and the broker community. At the same time, the Company is seeking opportunities to leverage its brand strength and attractive product portfolio in the evolving health care environment.

U.S. Regulatory Environment

The Affordable Care Act (ACA), federal health care legislation, was intended to give Americans of all ages and income levels access to comprehensive major medical health insurance and gave the U.S. federal government direct regulatory authority over the business of health insurance. The ACA included major changes to the U.S. health care insurance marketplace. Among other changes, the ACA included an individual medical insurance coverage mandate, provided for penalties on certain employers for failing to provide adequate coverage, created health insurance exchanges, and addressed coverage and exclusionsneeds, as well as medical loss ratios. It also imposed an excise tax on certain high cost plans, knownserve as the “Cadillac tax,” that is currently scheduled to begin in 2020. The ACA also included changes in government reimbursements and tax credits for individuals and employers and altered federal and state regulationa leading indicator of health insurers. While the ACA was enacted in 2010, the major elements of the law became effective on January 1, 2014. The ACA, as enacted, does not require material changes in the design of the Company's insurance products. However, indirect consequences of the legislation and regulations could present challenges and/or opportunities that could potentially have an impact on the Company's sales model, financial condition and results of operations. The United States Congress has considered and may continue to consider legislation that would repeal and replace key provisions of the ACA. There can be no assurance that any legislation affecting the ACA will be passed by Congress, nor as to the ultimate timing or provisions of any such legislation, nor as to the effect of any such legislation on the design or marketability of the Company's insurance products.future production capacity.

President Trump signed an Executive Order in October 2017 directing federal regulatory agencies to review and modify certain regulations issued under the ACA. The stated objectives of the Executive Order are to increase competition and consumer choices in health care markets, and to lower costs for health care, by making association health plans available to more employers, allowing employers to make better use of health reimbursement arrangements, and expanding coverage through short-term insurance. The Executive Order tasks three federal agencies, the Departments of Labor (DOL), Treasury, and Health and Human Services (HHS) with reviewing current rules and developing guidance to implement the order. While the details of any proposed modifications will not be known until further action by the agencies, the Company anticipates that the Executive Order will not have a significant impact on the availability or marketability of its products.

Title VII of the Dodd-Frank Act and regulations issued thereunder, in particular rules to require central clearing for certain types of derivatives, may have an impact on Aflac's derivative activity, including activity on behalf of Aflac Japan. In addition, in 2015 and 2016, six U.S. financial regulators, including the U.S. Commodity Futures Trading Commission (CFTC), issued final rules regarding the exchange of initial margin (IM) and variation margin (VM) for uncleared swaps that impose greater obligations on swap dealers regarding uncleared swaps with certain counterparties, such as Aflac. The requirements of such rules with respect to VM, as well as similar regulations in Europe, became effective on March 1, 2017. Full compliance with respect to all counterparties was required by September 1, 2017.  The requirements of such rules with respect to IM are currently being phased in and will be fully implemented by September 1, 2020. In October of 2017, the CFTC and the European Commission each finalized comparability determinations that permit certain swap dealers who are subject to both regulatory margin regimes to take advantage of substituted compliance by complying with one set of margin requirements.  The margin requirements are expected to result in more stringent collateral requirements and to affect other aspects of Aflac's derivatives activity.

The Dodd-Frank Act also established a Federal Insurance Office (FIO) under the U.S. Treasury Department to monitor all aspects of the insurance industry and of lines of business other than certain health insurance, certain long-term care insurance and crop insurance. Traditionally, U.S. insurance companies have been regulated primarily by state insurance departments. In December 2013, the FIO released a report entitled "How To Modernize And Improve The System Of Insurance Regulation In The United States." The report was required by the Dodd-Frank Act, and included 18 recommended areas of near-term reform for the states, including addressing capital adequacy and safety/soundness issues, reform of insurer resolution practices, and reform of marketplace regulation. The report also listed nine recommended areas for direct federal involvement in insurance regulation. Some of the recommendations outlined in the FIO report released in December 2013 have been implemented. The National Association of Registered Agents and Brokers Reform Act, signed into law in January 2015, simplifies the agent and broker licensing process across state lines. The FIO has also engaged with the supervisory colleges to monitor financial stability and identify regulatory gaps for large national and internationally active insurers. The new presidential administration in the United States and Congress have stated proposals to reform or repeal certain provisions of the Dodd-Frank Act. The Company cannot predict with any degree of certainty what impact, if any, such proposals will have on Aflac's business, financial condition, or results of operations.

Under state insurance guaranty association laws and similar laws in international jurisdictions, Aflac is subject to assessments, based on the share of business it writes in the relevant jurisdiction, for certain obligations of insolvent insurance companies to policyholders and claimants. In the United States, some states permit member insurers to recover assessments paid through full or partial premium tax offsets. The Company's policy is to accrue assessments when the entity for which the insolvency relates has met its state of domicile's statutory definition of insolvency, the amount of the loss is reasonably estimable and the related premium upon which the assessment is based is written. In most states, the definition is met with a declaration of financial insolvency by a court of competent jurisdiction.


Aflac U.S. Investments


The level of investment income is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, and other factors.


As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed-maturityfixed maturity investments and growth assets, including public equitiesequity securities and alternative investments in limited partnerships. Aflac U.S. has been investing in both publicly traded and privately originated investment-grade and below-investment-grade fixed-maturityfixed maturity securities and loan receivables.


The following table details the investment purchases for Aflac U.S.
Three Months Ended March 31,
(In millions)20232022
Fixed maturity securities:
     Other fixed maturity securities$209 $232 
     Infrastructure debt0 
Equity securities0 
Commercial mortgage and other loans:
     Transitional real estate loans14 107 
     Middle market loans19 166 
Other investments15 
        Total Aflac U.S. Purchases$257 $528 
  Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
(In millions) 2017 2016 2017 2016 
  Fixed maturities:         
     Other fixed maturities $284
 $145
 $770
 $502
 
     Infrastructure debt 10
 0
 25
 0
 
  Equities 16
 7
 54
 110
 
  Other investments:         
     Middle market loans 67
 14
 161
 158
 
     Commercial mortgage loans 48
(1) 
50
 89
(1) 
73
 
     Limited partnerships 3
 0
 13
 0
 
        Total Aflac U.S. Purchases $428
 $216
 $1,112
 $843
 
(1) Includes $30 and $71 of TRE loans for the three- and nine-month periods ended September 30, 2017, respectively.


See Note 3 of the Notes to the Consolidated Financial Statements and Notes 1 and 3 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report for more information regarding loans and loans receivables.


90


The following table presents the results of Aflac's U.S. investment yields for the periods ended September 30.March 31.
Three Months
  
20232022
Total purchases for period (in millions) (1)
$242 $523 
New money yield (1),(2)
7.01 %4.60 %
Return on average invested assets (3)
4.74 4.61 
Portfolio book yield, end of period (1),(2)
5.46 %4.95 %
 Three Months       Nine Months 
  
2017  2016  2017  2016 
Total purchases for period (in millions) (1)
$425
  $216
  $1,099
  $843
 
New money yield (1), (2)
4.40
% 3.28
% 4.40
% 3.93
%
Return on average invested assets (3)
5.05
  5.06
  5.03
  5.04
 
Portfolio book yield, end of period (1)
5.50
% 5.65
% 5.50
% 5.65
%
(1) Includes fixed maturitiesmaturity securities, commercial mortgage and perpetualother loans, equity securities, loan receivables, equities, and excludes alternative investments in limited partnerships
(2) Reported on a gross yield basis; excludes investment expenses and external management fees
(3) Net of investment expenses, year-to-date number reflected on a quarterly average basis


The increase in the Aflac U.S. new money yield forin the three- and nine-month periodsthree-month period ended September 30, 2017March 31, 2023 was primarily due to increases in U.S. interest rates, compared with the same respective periods in 2016.rates. See Notes 3

and 5 of the Notes to the Consolidated Financial Statements and the Analysis of Financial ConditionInvestments section of this MD&A for additional information on the Company's investments.


ANALYSIS OF FINANCIAL CONDITIONCORPORATE AND OTHER
The Company's financial condition has remained strong
Changes in the functional currenciespretax adjusted earnings of its operations. The yen/dollar exchange rate at the end of each period is used to translate yen-denominated balance sheet items to U.S. dollars for reporting purposes.

Investments

The Company'sCorporate and other are primarily affected by investment philosophy is to fulfill its fiduciary responsibility to invest assets in a prudent manner to meet the present and future needs of its policyholders’ contractual obligations while maximizing the long-term financial return on assets consistent with the Company's goals of maximizing long-term shareholder value within defined risk appetites and limits, and maintaining adequate liquidity.

income. The following table detailspresents a summary of results for Corporate and other.
Corporate and Other Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$91 $41 
Net investment income (loss) (1)
7 
Amortized hedge income related to certain foreign currency management strategies29 11 
Adjusted net investment income36 15 
Other income2 18 
Total adjusted revenues129 74 
Total benefits and claims, net46 37 
Adjusted expenses:
Interest expense33 40 
Other adjusted expenses57 40 
Total adjusted expenses90 80 
Total benefits and adjusted expenses136 116 
Pretax adjusted earnings$(7)$(42)
(1) The change in value of federal historic rehabilitation and solar investments by segment.

Investments by Segment
  
 Aflac Japan  Aflac U.S. 
(In millions)September 30,
2017
 December 31,
2016
September 30,
2017
 December 31,
2016
Securities available for sale, at fair value:              
Fixed maturities $65,710
   $59,903
  $14,005
   $13,250
 
Perpetual securities 1,803
   1,577
  60
   56
 
Equity securities 804
   1,185
  84
   124
 
Total available for sale 68,317
   62,665
  14,149
   13,430
 
Securities held to maturity, at amortized cost:              
Fixed maturities 31,998
   33,350
  0
   0
 
Total held to maturity 31,998
   33,350
  0
   0
 
Other investments:              
Commercial mortgage loans 1,002
(1) 
  745
  197
(1) 
  110
 
Middle market loans 467
   74
  331
   245
 
Policy loans 195
   174
  11
   10
 
Short-term investments 57
   88
  0
   0
 
Other 67
   0
  27
   0
 
Total other investments 1,788
   1,081
  566
   365
 
     Total investments 102,103
   97,096
  14,715
   13,795
 
Cash and cash equivalents 1,835
   1,313
  1,291
   1,428
 
            Total investments and cash (2)
 $103,938
   $98,409
  $16,006
   $15,223
 
(1) Includes $231in partnerships of $51 and $71$12 for the three-month periods ended March 31, 2023, and 2022, respectively, is included as a reduction to net investment income. Tax credits on these investments of TRE loans$52 and $16 for Aflac Japanthe three-month periods ended March 31, 2023, and Aflac U.S.,2022, respectively, have been recorded as an income tax benefit in the consolidated statement of September 30, 2017.
(2) Excludes investments and cash held by the Parent Company and other business segments of $2,545 in 2017 and $2,729 in 2016.

earnings. See the Loans and Loan Receivables section in Note 3 of the Notes to the Consolidated Financial Statements for further discussionadditional information on these investments.
Prior-year amounts have been adjusted for the adoption of these investments.accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.


CashIn the three-month period ended March 31, 2023, total adjusted revenues increased compared to the same period in 2022 primarily due to higher total premiums associated with the Aflac Re global reinsurance strategy and cash equivalents totaled $4.9 billion,an increase in adjusted net investment income. Total adjusted expenses increased compared to the same period in 2022 primarily due to expenses associated with the Aflac Re global reinsurance strategy. These results also reflect the impact of foreign currency on total net earned premiums and the corresponding benefits. Pretax adjusted earnings increased in the three-month period ended March 31, 2023 when compared to the same period in 2022 reflecting the increase in total adjusted revenue, partially offset by higher other adjusted expenses, net benefits and claims.

The Parent Company invests in partnerships that specialize in rehabilitating historic structures or 4.0%the installation of totalsolar equipment in order to receive federal historic rehabilitation and solar tax credits. These investments and cash, as of September 30, 2017, compared with $4.9 billion, or 4.2%, at December 31, 2016. For a discussion of the factors affecting the Company's cash balance, see the Operating Activities, Investing Activities and Financing Activities subsections of this MD&A.

During the third quarter of 2017, Aflac U.S. became a member of the Federal Home Loan Bank of Atlanta (FHLB). As a member, Aflac U.S. can obtain access to low-cost funding and also receive dividends on FHLB stock. Additional FHLB stock purchases are required based upon the amount of funds borrowed from the FHLB. Aflac U.S. will be required to post

acceptable forms of collateral for any borrowings it makes from the FHLB. As of September 30, 2017, Aflac U.S. had not yet obtained any advances from the FHLB. The FHLB stock purchased by the Company is classified as a restricted investment
91


limited partnerships and is included in other investments in the consolidated balance sheets.sheet. The change in value of each investment is recorded as a reduction to net investment income. Tax credits generated by these investments are recorded as an income tax benefit in the consolidated statement of earnings.


INVESTMENTS

The Company’s investment strategy utilizes disciplined asset and liability management while seeking long-term risk-adjusted investment returns and the delivery of stable income within regulatory and capital objectives, and preserving shareholder value. In attempting to optimally balance these objectives, the Company seeks to maintain on behalf of Aflac Japan a diversified portfolio of yen-denominated investment assets, U.S. dollar-denominated investment portfolio hedged back to yen and a portfolio of unhedged U.S. dollar-denominated assets. As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. invests in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loans. The Company is also a signatory to the Principles for Responsible Investment, a global framework for incorporating environmental, social and governance (ESG) considerations into investment and ownership decisions.

For additional information concerning the Company's investments, see Notes 3, 4, and 5 of the Notes to the Consolidated Financial Statements.


The following tables detail investments by segment.

Investment Securities by Segment
March 31, 2023
(In millions)Aflac JapanAflac U.S.Corporate and Other Total
Available for sale, fixed maturity securities,
   at fair value
$61,628 $12,661 $3,810 $78,099 
Held to maturity, fixed maturity securities,
   at amortized cost (1)
18,936 0 0 18,936 
Equity securities655 51 381 1,087 
Commercial mortgage and other loans:
Transitional real estate loans (1)
5,277 1,158 200 6,635 
Commercial mortgage loans (1)
1,134 624 0 1,758 
Middle market loans (1)
4,474 461 0 4,935 
Other investments:
Policy loans189 25 0 214 
Short-term investments (2)
1,334 172 1,055 2,561 
Limited partnerships2,034 222 176 2,432 
Other0 34 0 34 
Investment in affiliate (3)
0 119 (119)0 
     Total investments95,661 15,527 5,503 116,691 
Cash and cash equivalents1,517 701 1,591 3,809 
              Total investments and cash$97,178 $16,228 $7,094 $120,500 
(1) Net of allowance for credit losses
(2) Includes securities lending collateral
(3) For consolidated reporting, Aflac U.S.'s investment in Aflac Re is eliminated in Corporate and other

92


December 31, 2022
(In millions)Aflac JapanAflac U.S.Corporate and Other Total
Available for sale, fixed maturity securities,
   at fair value
$61,615 $12,231 $1,895 $75,741 
Held to maturity, fixed maturity securities,
   at amortized cost (1)
19,056 19,056 
Equity securities650 51 390 1,091 
Commercial mortgage and other loans:
Transitional real estate loans (1)
5,133 1,140 182 6,455 
Commercial mortgage loans (1)
1,269 729 15 2,013 
Middle market loans (1)
4,557 471 5,028 
Other investments:
Policy loans190 24 214 
Short-term investments (2)
319 184 1,029 1,532 
Limited partnerships1,900 208 182 2,290 
Other34 34 
Investment in affiliate (3)
195 (195)
     Total investments94,689 15,267 3,498 113,454 
Cash and cash equivalents1,601 720 1,622 3,943 
              Total investments and cash$96,290 $15,987 $5,120 $117,397 
(1) Net of allowance for credit losses
(2) Includes securities lending collateral
(3) For consolidated reporting, Aflac U.S.'s investment in Aflac Re is eliminated in Corporate and other

The ratings of the Company's securities referenced in the table below are based on the ratings designations provided by major Nationally Recognized Statistical Rating Organizations (NRSROs) (Moody's, S&Prating organizations such as Moody's, Standard & Poor's and Fitch)Fitch or, if not rated, are determined based on the Company's internal analysis of such securities. When the ratings issued by the rating agencies differ, the Company utilizes the second lowest rating when three or more rating agency ratings are available or the lowest rating when only two rating agency ratings are available.


The distributions of debt and perpetualfixed maturity securities the Company owns, by credit rating, were as follows:


Composition of Fixed Maturity Securities Portfolio by Credit Rating
 March 31, 2023December 31, 2022
 Amortized
Cost
  Fair    
  Value    
Amortized
Cost
  Fair    
  Value    
AAA1.7 %1.6 %1.6 %1.5 %
AA5.3 5.4 5.2 5.3 
A67.9 68.0 68.0 68.1 
BBB23.0 22.8 23.0 22.9 
BB or lower2.1 2.2 2.2 2.2 
Total100.0 %100.0 %100.0 %100.0 %
  September 30, 2017   December 31, 2016 
 Amortized
Cost
   Fair    
  Value    
 Amortized
Cost
   Fair    
  Value    
AAA 1.0%   .9%   2.0%   1.9% 
AA 4.1
   4.2
   5.0
   5.0
 
A 65.3
   66.4
   63.1
   65.2
 
BBB 24.3
   23.6
   24.6
   23.2
 
BB or lower 5.3
   4.9
   5.3
   4.7
 
Total 100.0%   100.0%   100.0%   100.0% 


As of September 30, 2017,March 31, 2023, the Company's direct and indirect exposure to securities in its investment portfolio that were guaranteed by third parties was immaterial both individually and in the aggregate.


93


The following table presents the 10 largest unrealized loss positions in the Company's portfolio as of September 30, 2017.March 31, 2023.
(In millions)Credit
Rating
Amortized
Cost
Fair
Value
Unrealized Loss 
KLM Royal Dutch AirlinesB$136 $103 $(33)
GLP Pte Ltd.BBB112 80 (32)
Autostrade Per Litalia SpaBBB148 116 (32)
Prologis LPA171 141 (30)
JP Morgan Chase and Co.A200 171 (29)
Banco de ChileA150 122 (28)
Investcorp Capital LimitedBB327 306 (21)
Credit Suisse Group AGBBB75 55 (20)
Grand City Properties SABBB56 37 (19)
Urban Renaissance AgencyA183 164 (19)
(In millions)Credit
Rating
 Amortized
Cost
 Fair
Value
 Unrealized    
Loss    
Diamond Offshore Drilling Inc. BB   $142
   $101
   $(41) 
Noble Holdings International Ltd.
 B   99
   65
   (34) 
AXA-UAP 
 BBB   290
   276
   (14) 
National Oilwell Varco Inc. BBB   98
   85
   (13) 
Tyco Electronics Group SA A   102
   91
   (11) 
Bakers Hughes Inc. A   122
   112
   (10) 
Transocean Inc. B   72
   62
   (10) 
Deutsche Postbank AG BB   213
   204
   (9) 
Mirvac Group Finance Ltd. BBB   89
   81
   (8) 
Cenovus Energy Inc. BBB   79
   72
   (7) 


Generally, declines in fair values can be a result of changes in interest rates, yen/dollar exchange rate, and changes in net spreads driven by a broad market move or a change in the issuer's underlying credit quality. As theThe Company believes these issuers have the ability to continue making timely payments of principal and interest, the Company views these changes in fair value to be temporary and does not believe it is necessary to impair the carrying value of these securities.interest. See the Unrealized Investment Gains and Losses section in Note 3 of the Notes to the Consolidated Financial Statements for further discussions of unrealized losses related to financial institutions including perpetual securities, and other corporate investments.



Below-Investment-Grade Securities

The Company's portfolio of below-investment-grade securities includes debt securities purchased while the issuer was rated investment grade plus other loans and bonds purchased as part of an allocation to that segment of the market. The following is the Company's below-investment-grade exposure.

Below-Investment-Grade Investments
March 31, 2023
(In millions)Par
Value
Amortized
Cost
(1)
Fair
Value
Unrealized
Gain
(Loss)
Investcorp Capital Limited$327 $327 $306 $(21)
Pemex Project Funding Master Trust225 225 228 3 
Commerzbank187 145 205 60 
Telecom Italia SpA150 150 183 33 
KLM Royal Dutch Airlines150 136 103 (33)
Apache Corporation138 110 130 20 
Howmet Aerospace Inc.100 70 101 31 
IKB Deutsche Industriebank AG97 48 77 29 
Generalitat de Catalunya60 25 60 35 
National Gas Co. Trinidad & Tobago52 50 46 (4)
Other Issuers63 64 51 (13)
          Subtotal (2)
1,549 1,350 1,490 140 
High yield corporate bonds736 622 668 46 
Middle market loans4,642 4,454 4,456 2 
          Grand Total$6,927 $6,426 $6,614 $188 
(1) Net of allowance for credit losses
(2) Securities initially purchased as investment grade, but have subsequently been downgraded to below investment grade

The Company invests in middle market loans primarily to U.S. corporate borrowers, most of which have below-investment-grade ratings. The objectives of this program include enhancing the yield on invested assets, achieving further diversification of credit risk, and mitigating the risk of rising interest rates and hedge costs through the acquisition of floating rate assets.

94


The Company maintains an allocation to higher yielding corporate bonds within the Aflac Japan and Aflac U.S. portfolios. Most of these securities were rated below-investment-grade at the time of purchase, but the Company also purchased several that were rated investment grade which, because of market pricing, offer yields commensurate with below-investment-grade risk profiles. The objective of this allocation was to enhance the Company's yield on invested assets and further diversify credit risk. All investments in this program must have a minimum rating at purchase of low BB using the Company's above described rating methodology and are managed by the Company's internal credit portfolio management team.

Fixed Maturity Securities by Sector

The Company maintains diversification in investments by sector to avoid concentrations to any one sector, thus managing exposure risk. The following table shows the distribution of fixed maturities by sector classification.
March 31, 2023
(In millions)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value% of
Total
Government and agencies$43,595 $4,082 $(1,084)$46,593 46.3 %
Municipalities2,593 261 (97)2,757 2.8 
Mortgage- and asset-backed securities2,545 99 (77)2,567 2.7 
Public utilities7,495 671 (191)7,975 7.9 
Electric6,074 551 (134)6,489 6.4 
Natural Gas844 69 (32)882 .9 
Other577 51 (25)604 .6 
Sovereign and supranational1,118 134 (14)1,238 1.2 
Banks/financial institutions9,279 653 (512)9,420 9.8 
Banking5,571 455 (295)5,732 5.9 
Insurance1,716 143 (67)1,791 1.8 
Other1,992 55 (150)1,897 2.1 
Other corporate27,617 2,655 (1,107)29,165 29.3 
Basic Industry2,444 307 (83)2,669 2.6 
Capital Goods3,275 231 (147)3,359 3.5 
Communications2,906 375 (66)3,214 3.1 
Consumer Cyclical2,136 219 (50)2,305 2.3 
Consumer Non-Cyclical6,148 522 (240)6,429 6.5 
Energy2,556 359 (60)2,855 2.7 
Other1,343 95 (113)1,325 1.4 
Technology3,701 185 (171)3,716 3.9 
Transportation3,108 362 (177)3,293 3.3 
        Total fixed maturity securities$94,242 $8,555 $(3,082)$99,715 100.0 %
(1) Net of allowance for credit losses

Below-Investment-Grade Securities

The Company's portfolio of below-investment-grade securities includes debt securities purchased while the issuer was rated investment grade plus other loans and bonds purchased as part of an allocation to that segment of the market. The following is the Company's below-investment-grade exposure.

Below-Investment-Grade Investments
March 31, 2023
(In millions)Par
Value
Amortized
Cost
(1)
Fair
Value
Unrealized
Gain
(Loss)
Investcorp Capital Limited$327 $327 $306 $(21)
Pemex Project Funding Master Trust225 225 228 3 
Commerzbank187 145 205 60 
Telecom Italia SpA150 150 183 33 
KLM Royal Dutch Airlines150 136 103 (33)
Apache Corporation138 110 130 20 
Howmet Aerospace Inc.100 70 101 31 
IKB Deutsche Industriebank AG97 48 77 29 
Generalitat de Catalunya60 25 60 35 
National Gas Co. Trinidad & Tobago52 50 46 (4)
Other Issuers63 64 51 (13)
          Subtotal (2)
1,549 1,350 1,490 140 
High yield corporate bonds736 622 668 46 
Middle market loans4,642 4,454 4,456 2 
          Grand Total$6,927 $6,426 $6,614 $188 
(1) Net of allowance for credit losses
(2)Securities by Type of Issuanceinitially purchased as investment grade, but have subsequently been downgraded to below investment grade

The Company hasinvests in middle market loans primarily to U.S. corporate borrowers, most of which have below-investment-grade ratings. The objectives of this program include enhancing the yield on invested assets, achieving further diversification of credit risk, and mitigating the risk of rising interest rates and hedge costs through the acquisition of floating rate assets.

94


The Company maintains an allocation to higher yielding corporate bonds within the Aflac Japan and Aflac U.S. portfolios. Most of these securities were rated below-investment-grade at the time of purchase, but the Company also purchased several that were rated investment grade which, because of market pricing, offer yields commensurate with below-investment-grade risk profiles. The objective of this allocation was to enhance the Company's yield on invested assets and further diversify credit risk. All investments in both publiclythis program must have a minimum rating at purchase of low BB using the Company's above described rating methodology and privately issued securities. are managed by the Company's internal credit portfolio management team.

Fixed Maturity Securities by Sector

The Company's abilityCompany maintains diversification in investments by sector to sell either type of security is a function of overall market liquidity which is impacted by, among other things, the amount of outstanding securities of a particular issuer or issuance, trading history of the issue or issuer, overall market conditions, and idiosyncratic events affecting the specific issue or issuer.

avoid concentrations to any one sector, thus managing exposure risk. The following table details investment securitiesshows the distribution of fixed maturities by typesector classification.
March 31, 2023
(In millions)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value% of
Total
Government and agencies$43,595 $4,082 $(1,084)$46,593 46.3 %
Municipalities2,593 261 (97)2,757 2.8 
Mortgage- and asset-backed securities2,545 99 (77)2,567 2.7 
Public utilities7,495 671 (191)7,975 7.9 
Electric6,074 551 (134)6,489 6.4 
Natural Gas844 69 (32)882 .9 
Other577 51 (25)604 .6 
Sovereign and supranational1,118 134 (14)1,238 1.2 
Banks/financial institutions9,279 653 (512)9,420 9.8 
Banking5,571 455 (295)5,732 5.9 
Insurance1,716 143 (67)1,791 1.8 
Other1,992 55 (150)1,897 2.1 
Other corporate27,617 2,655 (1,107)29,165 29.3 
Basic Industry2,444 307 (83)2,669 2.6 
Capital Goods3,275 231 (147)3,359 3.5 
Communications2,906 375 (66)3,214 3.1 
Consumer Cyclical2,136 219 (50)2,305 2.3 
Consumer Non-Cyclical6,148 522 (240)6,429 6.5 
Energy2,556 359 (60)2,855 2.7 
Other1,343 95 (113)1,325 1.4 
Technology3,701 185 (171)3,716 3.9 
Transportation3,108 362 (177)3,293 3.3 
        Total fixed maturity securities$94,242 $8,555 $(3,082)$99,715 100.0 %
(1) Net of issuance.allowance for credit losses


Investment Securities by Type of Issuance
  
 September 30, 2017   December 31, 2016 
(In millions)Amortized
Cost
 Fair   
Value   
 Amortized
Cost
 Fair  
Value  
Publicly issued securities:               
Fixed maturities $80,330
   $91,188
   $75,406
   $86,132
 
Perpetual securities 46
   74
   51
   75
 
Equity securities 797
   912
   1,196
   1,300
 
      Total publicly issued 81,173
   92,174
   76,653
   87,507
 
Privately issued securities: (1)
               
Fixed maturities 23,912
   27,826
   24,307
   27,649
 
Perpetual securities 1,503
   1,789
   1,455
   1,558
 
Equity securities 14
   16
   7
   9
 
      Total privately issued 25,429
   29,631
   25,769
   29,216
 
      Total investment securities $106,602
   $121,805
   $102,422
   $116,723
 
(1) Includes Rule 144A securities

The perpetual securities the Company holds were largely issued by banks that are integral to the financial markets of the sovereign country of the issuer. As a result of the issuer's position within the economy of the sovereign country, the Company's perpetual securities may be subject to a higher risk of nationalization of their issuers in connection with capital injections from an issuer's sovereign government. The Company cannot be assured that such capital support will extend to all levels of an issuer's capital structure. In addition, certain governments or regulators may consider imposing interest and principal payment restrictions on issuers of hybrid securities to preserve cash and preserve the issuer's capital. Beyond the cash flow impact that additional deferrals would have on the Company's portfolio, such deferrals could result in ratings downgrades of the affected securities, which in turn could result in a reduction of fair value of the securities and increase the Company's regulatory capital requirements. The Company considers these factors in its credit review process.

The following table details the Company's privately issued investment securities.

Privately Issued Securities
(Amortized cost, in millions)September 30,
2017
 December 31,
2016
Privately issued securities as a percentage of total investment securities 23.9%   25.2% 
Privately issued securities held by Aflac Japan $22,734
   $23,104
 
Privately issued securities held by Aflac Japan as a percentage of total
investment securities
 21.3%   22.6% 


Reverse-Dual Currency Securities(1)
(Amortized cost, in millions)September 30,
2017
 December 31,
2016
Privately issued reverse-dual currency securities $5,505
   $5,628
 
Publicly issued collateral structured as reverse-dual currency securities 1,393
   1,349
 
Total reverse-dual currency securities $6,898
   $6,977
 
Reverse-dual currency securities as a percentage of total investment
securities
 6.5%   6.8% 
(1) Principal payments in yen and interest payments in dollars

Aflac Japan has a portfolio of privately issued securities to better match liability characteristics and secure higher yields than those available on Japanese government or other public corporate bonds.Aflac Japan’s investments in yen-denominated privately issued securities consist primarily of non-Japanese issuers, are rated investment grade at purchase and have longer maturities, thereby allowing the Company to improve asset/liability matching and overall investment returns. These securities are generally either privately negotiated arrangements or issued under medium-term note programs and have standard documentation commensurate with credit ratings of the issuer, except when internal credit analysis indicates that additional protective and/or event-risk covenants were required. Many of these investments have protective covenants appropriate to the specific investment. These may include a prohibition of certain activities by the borrower, maintenance of certain financial measures, and specific conditions impacting the payment of the Company's notes.

Below-Investment-Grade Securities


The Company's portfolio of below-investment-grade securities includes debt securities purchased while the issuer was rated investment grade plus other loans and bonds purchased as part of an allocation to that segment of the market. The following is the Company's below-investment-grade exposure.


Below-Investment-Grade Investments
March 31, 2023
(In millions)Par
Value
Amortized
Cost
(1)
Fair
Value
Unrealized
Gain
(Loss)
Investcorp Capital Limited$327 $327 $306 $(21)
Pemex Project Funding Master Trust225 225 228 3 
Commerzbank187 145 205 60 
Telecom Italia SpA150 150 183 33 
KLM Royal Dutch Airlines150 136 103 (33)
Apache Corporation138 110 130 20 
Howmet Aerospace Inc.100 70 101 31 
IKB Deutsche Industriebank AG97 48 77 29 
Generalitat de Catalunya60 25 60 35 
National Gas Co. Trinidad & Tobago52 50 46 (4)
Other Issuers63 64 51 (13)
          Subtotal (2)
1,549 1,350 1,490 140 
High yield corporate bonds736 622 668 46 
Middle market loans4,642 4,454 4,456 2 
          Grand Total$6,927 $6,426 $6,614 $188 
 September 30, 2017 December 31, 2016 
(In millions)Par
Value
 Amortized
Cost
 Fair
Value
 Unrealized
Gain
(Loss)
 Par
Value
 Amortized
Cost
 Fair
Value
 Unrealized
Gain
(Loss)
 
Republic of South Africa$488
 $488
 $524
 $36
 $ *
 $ *
 $ *
 $ *
 
Investcorp Capital Limited378
 378
 374
 (4) 368
 368
 346
 (22) 
Navient Corp.296
 157
 214
 57
 287
 152
 197
 45
 
Republic of Tunisia266
 156
 179
 23
 318
 191
 264
 73
 
KLM Royal Dutch Airlines266
 195
 236
 41
 257
 189
 213
 24
 
Barclays Bank PLC242
 156
 243
 87
 236
 152
 221
 69
 
Deutsche Postbank AG213
 213
 204
 (9) 206
 206
 179
 (27) 
Telecom Italia SpA177
 177
 251
 74
 172
 172
 212
 40
 
Generalitat de Catalunya142
 52
 110
 58
 154
 57
 111
 54
 
Transnet133
 133
 136
 3
 *
 *
 *
 *
 
Diamond Offshore Drilling Inc.124
 142
 101
 (41) 124
 141
 96
 (45) 
IKB Deutsche Industriebank AG115
 49
 95
 46
 112
 47
 91
 44
 
Alcoa, Inc.100
 83
 106
 23
 100
 80
 97
 17
 
Republic of Trinidad and Tobago98
 98
 109
 11
 *
 *
 *
 *
 
Noble Holdings International Ltd.95
 99
 65
 (34) 95
 98
 68
 (30) 
EMC Corp.85
 86
 81
 (5) 85
 86
 76
 (10) 
Petrobras International Finance
Company
84
 84
 86
 2
 91
 90
 83
 (7) 
Teck Resources Ltd.70
 75
 71
 (4) 70
 73
 66
 (7) 
Nabors Industries Inc.69
 67
 72
 5
         
Transocean Inc.68
 72
 62
 (10) 68
 72
 57
 (15) 
CF Industries Inc.60
 59
 59
 0
 60
 59
 54
 (5) 
National Gas Co. Trinidad and
Tobago
52
 50
 54
 4
 *
 *
 *
 *
 
Votorantim Overseas Trading
IV Ltd.
50
 49
 55
 6
 50
 49
 54
 5
 
UPM-Kymmene*
 *
 *
 *
 180
 178
 188
 10
 
Cenovus Energy Inc.*
 *
 *
 *
 75
 78
 71
 (7) 
Other Issuers (below $50 million
in par value)
253
 241
 246
 5
 333
 321
 309
 (12) 
          Subtotal (1)
3,924
 3,359
 3,733
 374
 3,441
 2,859
 3,053
 194
 
Senior secured bank loans1,666
 1,709
 1,663
 (46) 1,758
 1,855
 1,764
 (91) 
High yield corporate bonds563
 560
 585
 25
 614
 602
 624
 22
 
Middle market loans, net of
reserves
(2)
809
 797
 797
 0
 324
 319
 320
 1
 
          Grand Total$6,962
 $6,425
 $6,778
 $353
 $6,137
 $5,635
 $5,761
 $126
 
(1) Net of allowance for credit losses
* Investment grade at respective reporting date
(1)(2) Securities initially purchased as investment grade, but have subsequently been downgraded to below investment grade
(2) Middle market loans are carried at amortized cost


The Company invests in senior secured bank loans and middle market loans primarily to U.S. corporate borrowers, most of which have below-investment-grade ratings. The bank loan and middle market loan investment programs are managed externally by third party firms specializing in this asset class and require a minimum average portfolio rating of low BB and a minimum single investment rating of low B from one of the NRSROs. The objectives of these programsthis program include enhancing the yield on invested assets, achieving further diversification of credit risk, and mitigating the risk of rising interest rates and hedge costs through the acquisition of floating rate assets. The Company's investments in these programs totaled $2.7 billion and $2.3 billion at September 30, 2017, and December 31, 2016, respectively, on an amortized cost basis.


94


The Company maintains an allocation to higher yielding corporate bonds within the Aflac Japan and Aflac U.S. portfolios. Most of these securities were rated below-investment-grade at the time of purchase, but the Company also purchased several that were rated investment grade which, because of market pricing, offer yields commensurate with below-investment-grade risk profiles. The objective of this allocation was to enhance the Company's yield on invested assets and further diversify credit risk. All investments in this program must have a minimum rating at purchase of low BB using the Company's above described rating methodology and are managed by the Company's internal credit portfolio management team.


Hedging ActivitiesFixed Maturity Securities by Sector


The Company maintains diversification in investments by sector to avoid concentrations to any one sector, thus managing exposure risk. The following table shows the distribution of fixed maturities by sector classification.
March 31, 2023
(In millions)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value% of
Total
Government and agencies$43,595 $4,082 $(1,084)$46,593 46.3 %
Municipalities2,593 261 (97)2,757 2.8 
Mortgage- and asset-backed securities2,545 99 (77)2,567 2.7 
Public utilities7,495 671 (191)7,975 7.9 
Electric6,074 551 (134)6,489 6.4 
Natural Gas844 69 (32)882 .9 
Other577 51 (25)604 .6 
Sovereign and supranational1,118 134 (14)1,238 1.2 
Banks/financial institutions9,279 653 (512)9,420 9.8 
Banking5,571 455 (295)5,732 5.9 
Insurance1,716 143 (67)1,791 1.8 
Other1,992 55 (150)1,897 2.1 
Other corporate27,617 2,655 (1,107)29,165 29.3 
Basic Industry2,444 307 (83)2,669 2.6 
Capital Goods3,275 231 (147)3,359 3.5 
Communications2,906 375 (66)3,214 3.1 
Consumer Cyclical2,136 219 (50)2,305 2.3 
Consumer Non-Cyclical6,148 522 (240)6,429 6.5 
Energy2,556 359 (60)2,855 2.7 
Other1,343 95 (113)1,325 1.4 
Technology3,701 185 (171)3,716 3.9 
Transportation3,108 362 (177)3,293 3.3 
        Total fixed maturity securities$94,242 $8,555 $(3,082)$99,715 100.0 %
(1) Net of allowance for credit losses

Securities by Type of Issuance

The Company has investments in both publicly and privately issued securities. The Company's ability to sell either type of security is a function of overall market liquidity which is impacted by, among other things, the amount of outstanding securities of a particular issuer or issuance, trading history of the issue or issuer, overall market conditions, and idiosyncratic events affecting the specific issue or issuer.

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The following table details investment securities by type of issuance.

Investment Securities by Type of Issuance
  
March 31, 2023December 31, 2022
(In millions)
Amortized
Cost
(1)
Fair   
Value   
Amortized
Cost (1)
Fair  
Value  
Publicly issued securities:
Fixed maturity securities$76,825 $81,310 $77,176 $79,090 
Equity securities866 866 882 882 
      Total publicly issued77,691 82,176 78,058 79,972 
Privately issued securities: (2)
Fixed maturity securities (3)
17,417 18,405 17,349 17,861 
Equity securities221 221 209 209 
      Total privately issued17,638 18,626 17,558 18,070 
      Total investment securities$95,329 $100,802 $95,616 $98,042 
(1) Net of allowance for credit losses
(2) Primarily consists of securities owned by Aflac Japan
(3) Excludes Rule 144A securities

The following table details the Company's reverse-dual currency securities.

Reverse-Dual Currency Securities(1)
(Amortized cost, in millions)March 31,
2023
December 31,
2022
Privately issued reverse-dual currency securities$4,028 $4,049 
Publicly issued collateral structured as reverse-dual currency securities1,374 1,383 
Total reverse-dual currency securities$5,402 $5,432 
Reverse-dual currency securities as a percentage of total investment
   securities
5.7 %5.7 %
(1) Principal payments in yen and interest payments in dollars

Aflac Japan has a portfolio of privately issued securities to better match liability characteristics and secure higher yields than those available on Japanese government or other public corporate bonds.Aflac Japan’s investments in yen-denominated privately issued securities consist primarily of non-Japanese issuers, are rated investment grade at purchase and have longer maturities, thereby allowing the Company to improve asset/liability matching and overall investment returns. These securities are generally either privately negotiated arrangements or issued under medium-term note programs and have standard documentation commensurate with credit ratings of the issuer, except when internal credit analysis indicates that additional protective and/or event-risk covenants were required. Many of these investments have protective covenants appropriate to the specific investment. These may include a prohibition of certain activities by the borrower, maintenance of certain financial measures, and specific conditions impacting the payment of the Company's notes.

HEDGING ACTIVITIES

The Company uses derivative contracts to hedge foreign currency exchange rate risk and interest rate risk. The Company uses various strategies, including derivatives, to manage these risks. See Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the 2022 Annual Report for more information about market risk and the Company’s use of derivatives.

Derivatives are designed to reduce risk on an economic basis while minimizing the impact on financial results. The Company’s derivatives programs vary depending on the type of risk being hedged. See Note 4 of the Notes to the Consolidated Financial Statements for:

A description of the Company's derivatives, hedging strategies and underlying risk exposure.
Information about the notional amount and fair market value of the Company's derivatives.
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The unrealized and realized gains and losses impact on adjusted earnings of derivatives in cash flow, fair value, net investments in foreign operations, or non-qualifying hedging relationships.

Foreign Currency Exchange Rate Risk Hedge Program
The Company has deployed the following hedging strategies to mitigate exposure to foreign currency exchange rate risk:

Aflac Japan hedges U.S. dollar-denominated investments back to yen (see Aflac Japan’s U.S. Dollar-Denominated InvestmentsHedge Program below).


Most of Aflac Japan's cash, investments, and liabilities are yen-denominated. However, Aflac Japan also owns U.S. dollar-denominated investments, a portion of which Aflac Japan hedges with foreign currency forwards and options. As of September��30, 2017, the cost or amortized cost of yen-denominated investments and U.S. dollar-denominated investments in Aflac Japan was $71.8 billion and $23.0 billion, respectively. As September 30, 2017, the Company had outstanding notional amounts of foreign currency forwards of $11.4 billion and foreign currency collars of $5.7 billion hedging the U.S. dollar-denominated investments.

Net Investment Hedge
The Company's investment in Aflac Japan is affected by changes in the yen/dollar exchange rate. To mitigate this exposure, the Company has taken several courses of action. First, Aflac Japan maintains certain unhedged U.S. dollar-denominated securities, which serve as an economic currency hedge of a portion of the Company's investment in Aflac Japan. Second, theJapan (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

The Parent Company has designated the majority of the Parent Company’sdesignates yen-denominated liabilities (notes payable and loans) as non-derivative hedging instruments and designates certain foreign currency forwards and options as derivative hedges of the Company’s net investment in Aflac Japan (see Enterprise Corporate Hedging Program below).

The Parent Company enters into forward and option contracts to accomplish a dual objective of hedging foreign currency exchange rate risk related to dividend payments by its subsidiary, ALIJ, and reducing enterprise-wide hedge costs (see Enterprise Corporate Hedging Program below).


The following table presents metrics related to Aflac Japan's U.S. dollar-denominated hedge program and the Parent Company's enterprise corporate hedging program, including associated amortized hedge costs/income, for the periods ended March 31. See the Results of Operations section of this MD&A for the Company's definition of amortized hedge costs/income.
Three Months
20232022
Aflac Japan:
FX Forwards
   FX forward (sell USD, buy yen) notional at end of period (in billions) (1)
$3.7$4.5
   Weighted average remaining tenor (in months) (2)
9.89.9
   Amortized hedge income (cost) for period (in millions)$(39)$(13)
FX Options
FX option notional at the end of period (in billions) (1)
$13.5$13.5
Weighted average remaining tenor (in months) (2)
7.46.6
Amortized hedge income (cost) for period (in millions)$(19)$(13)
Corporate and other (Parent Company):
FX Forwards
   FX forward (buy USD, sell yen) notional at end of period (in billions) (1)
$5.0$5.0
   Weighted average remaining tenor (in months) (2)
10.410.9
   Amortized hedge income (cost) for period (in millions)$31$12
FX Options
FX option notional at the end of period (in billions) (1)
$2.2$1.9
Weighted average remaining tenor (in months) (2)
7.47.6
Amortized hedge income (cost) for period (in millions)$(2)$(1)
(1) Notional is reported net of any offsetting positions within Aflac Japan or the Parent Company, respectively.
(2) Tenor based on period reporting date to settlement date

Amortized hedge costs/income can fluctuate based upon many factors, including the derivative notional amount, the length of time of the derivative contract, changes in both U.S. and Japan interest rates, and supply and demand for dollar funding. Amortized hedge costs/income have fluctuated in recent periods due to changes in the previously mentioned factors.

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Aflac Japan’s U.S. Dollar-Denominated Hedge Program (U.S. Dollar Program)

Aflac Japan buys U.S. dollar-denominated investments, typically corporate bonds, and hedges them back to yen with foreign currency forwards and options to hedge foreign currency exchange rate risk. This economically creates yen assets that match yen liabilities during the life of the derivative and provides favorable capital treatment under the Japan solvency margin ratio (SMR) calculations. The currency risk being hedged is generally based on fair value of hedged investments. The following table summarizes the U.S. dollar-denominated investments held by Aflac Japan.
March 31,
2023
December 31,
2022
(In millions)
Amortized
Cost
(1)
Fair
Value
Amortized
Cost (1)
Fair
Value
Available-for-sale securities:
  Fixed maturity securities$12,817 $14,176 $14,321 $15,191 
Equity securities33 33 33 33 
Commercial mortgage and other loans:
  Transitional real estate loans (floating rate)5,277 5,207 5,133 5,088 
  Commercial mortgage and other loans1,134 1,013 1,269 1,129 
  Middle market loans (floating rate)4,474 4,468 4,557 4,545 
Other investments2,033 2,033 1,899 1,899 
      Total U.S. Dollar Program25,768 26,930 27,212 27,885 
Available-for-sale securities:
  Fixed maturity securities - economically converted to yen2,236 2,928 2,209 2,795 
      Total U.S. dollar-denominated investments in Aflac Japan$28,004 $29,858 $29,421 $30,680 
(1) Net of allowance for credit losses

The U.S. Dollar Program includes all U.S. dollar-denominated investments in Aflac Japan other than the investments in certain consolidated VIEs where the instrument is economically converted to yen as a result of a derivative in the consolidated VIE. The Company uses one-sided foreign currency put options to mitigate the settlement risk on U.S. dollar-denominated assets related to extreme foreign currency rate changes. From time to time, Aflac Japan also maintains a collar program on a portion of its U.S. Dollar Program to mitigate against more extreme moves in foreign exchange and therefore support SMR. As of March 31, 2023, there were no collars in Aflac Japan, and none of the Company's foreign currency options hedging Aflac Japan's U.S. dollar-denominated assets were in-the-money.

As of March 31, 2023, the fair value of Aflac Japan's unhedged U.S. dollar-denominated portfolio was $9.7 billion (excluding certain U.S. dollar-denominated assets shown in the table above as a result of consolidation that have been economically converted to yen using derivatives).

Foreign exchange derivatives used for hedging are periodically settled, which results in cash receipt or payment at maturity or early termination. The following table presents the settlements associated with the Company's currency derivatives used for hedging Aflac Japan’s U.S. dollar-denominated investments.
Three Months Ended March 31,
(In millions)20232022
Net cash inflows (outflows)$(579)$(619)

Enterprise Corporate Hedging Program

The Company has designated certain yen-denominated liabilities and foreign currency forwards and options of the Parent Company as accounting hedges of its net investment in Aflac Japan. The Company's consolidated yen-denominated net asset position was partially hedged at $11.1 billion as of March 31, 2023, with hedging instruments comprised of $3.9 billion of yen-denominated debt and $7.2 billion of foreign currency forwards and options, compared with $11.6 billion as of December 31, 2022, with hedging instruments comprised of $4.0 billion of yen-denominated debt and $7.6 billion of foreign currency forwards and options.

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The Company makes its accounting designation of net investment hedge designation at the beginning of each quarter. If the total of the designated Parent Company non-derivative and derivativesderivative notional is equal to or less than the Company's net investment in Aflac Japan, the hedge is deemed to be effective, and the currency exchange effect on the yen-denominated liabilities and the change in estimated fair value of the derivatives are reported in the unrealized foreign currency component of other comprehensive income. The Company estimates that if the designated net investment hedge positions exceeded its net investment in Aflac Japan by 10 billion yen, the Company would report a foreign exchange gain/loss of approximately $1 million for every 1% yen weakening/strengthening in the end-of-period yen/dollar exchange rate. The Company's net investment hedge was effective during the three- and nine-monththree-month periods ended September 30, 2017March 31, 2023 and 2016,2022, respectively. For additional information on the Company's net investment hedging strategy, see Note 4 of the Notes to the Consolidated Financial Statements.

In order to economically mitigate risks associated with the enterprise-wide exposure to the yen and the level and volatility of hedge costs, the Parent Company enters into foreign exchange forward and option contracts. By buying U.S. dollars and selling yen, the Parent Company is effectively lowering its overall economic exposure to the yen, while Aflac Japan's U.S. dollar exposure remains reduced as a result of Aflac Japan's U.S. Dollar Program that economically creates yen assets. Among other objectives, this strategy is intended to offset the enterprise-wide amortized hedge costs by generating amortized hedge income. This activity is reported in Corporate and other. The Company continually evaluates the program’s efficacy.

As part of the Company’s internal reinsurance platform, Aflac Re enters into foreign currency forwards with the Parent Company to economically manage the currency mismatch between Aflac Re's assets, which are mostly denominated in U.S. dollars, and liabilities, which are mostly denominated in yen, net asset figure calculatedin order to support and optimize BMA capital requirements. For additional information on the Company's internal reinsurance platform, see Note 8 of the Notes to the Consolidated Financial Statements and the Liquidity and Capital Resources section of this MD&A.

Interest Rate Risk Hedge Program

Aflac Japan and Aflac U.S. use interest rate swaps from time to time to mitigate the risk of investment income volatility for hedging purposes differscertain variable-rate investments. Additionally, to manage interest rate risk associated with its U.S. dollar-denominated investments held by Aflac Japan, from time to time the yen-denominated net asset position as discussed inCompany utilizes interest rate swaptions.

For additional discussion of the risks associated with the foreign currency exposure refer to the Currency Risk section ofin Item 7A., Quantitative and Qualitative Disclosures about Market Risk, inand Item 1A, specifically to the 2016 Annual Report. As disclosed in that section, the consolidation of the underlying assets in certain VIEs requires that theRisk Factors titled “The Company derecognize its yen-denominated investment in the VIE and recognize the underlying fixed-maturity or perpetual securities and cross-currency swaps. While these U.S. dollar investments will createis exposed to foreign currency fluctuations in the combinationyen/dollar exchange rate" and “Lack of the U.S. dollar-denominated investment and the cross-currency swap economically creates aavailability of acceptable yen-denominated investment that qualifies for inclusion as a component ofinvestments could adversely affect the Company's investment in Aflac Japan. Similarly, the combinationresults of the U.S. corporate bonds and the foreign currency forwards and options that the Company has entered into, as discussedoperations, financial position or liquidity" in the Aflac Japan Investment subsection of MD&A, economically creates a yen-denominated investment that qualifies for inclusion as a component of the Company's investment in Aflac Japan.2022 Annual Report.

The dollar values of the Company's yen-denominated net assets, including economic yen-denominated investments for net investment hedging purposes as discussed above, are summarized as follows (translated at end-of-period exchange rates):
(In millions)September 30,
2017
 December 31,
2016
Aflac Japan net assets $17,401
   $16,215
 
Aflac Japan unhedged U.S. dollar-denominated net assets (10,230)   (9,694) 
   Consolidated yen-denominated net assets (liabilities) $7,171
   $6,521
 

For the hedge of the Company's net investment in Aflac Japan, the Company has designated certain of the Parent Company's yen-denominated liabilities, certain unhedged U.S. dollar investments and foreign currency forwards and

options as a hedge of its net investment in Aflac Japan. The Company's consolidated yen-denominated net asset position was partially hedged at $1.4 billion as of September 30, 2017, compared with $1.3 billion as of December 31, 2016.


See Note 4 of the Notes to the Consolidated Financial Statements for additional information on the Company's hedging activities.


DEFERRED POLICY ACQUISITION COSTS
The following table presents deferred policy acquisition costs by segment.
(In millions)March 31,
2023
December 31, 2022% Change      
Aflac Japan$5,776 $5,776 .0 %(1)
Aflac U.S.3,491 3,463 .8 
Total$9,267 $9,239 .3 %
(1) Aflac Japan’s deferred policy acquisition costs increased .6% in yen during the three months ended March 31, 2023.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

See Note 6 of the Notes to the Consolidated Financial Statements for additional information on the Company's deferred policy acquisition costs.

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POLICY LIABILITIES
The following table presents policy liabilities by segment.
(In millions)March 31,
2023
December 31, 2022% Change      
Aflac Japan$88,944 $86,088 3.3 %(1)
Aflac U.S.11,542 11,187 3.2 
Corporate and other1,874 302 100.0 
Intercompany eliminations(2)
(2,427)(667)100.0 
Total$99,933 $96,910 3.1 %
(1) Aflac Japan’s policy liabilities increased 4.0% in yen during the three months ended March 31, 2023.
(2) Elimination entry necessary due to the internal reinsurance transaction with Aflac Re and to recapture of a portion of policy liabilities ceded externally as a result of the reinsurance retrocession transaction. See Note 8 of the Notes to the Consolidated Financial Statements.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

See Note 7 of the Notes to the Consolidated Financial Statements for additional information on the Company's policy liabilities.

BENEFIT PLANS

Aflac Japan and Aflac U.S. have various benefit plans. For additional information on the Company's Japanese and U.S. plans, see Note 12 of the accompanying Notes to the Consolidated Financial Statements and Note 14 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report.

POLICYHOLDER PROTECTION

Policyholder Protection Corporation

The Japanese insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. Legislation enacted regarding the framework of the Life Insurance Policyholder Protection Corporation (LIPPC) included government fiscal measures supporting the LIPPC. In March 2022, Japan's Diet passed legislation that extended the government's fiscal support of the LIPPC through March 2027. In March 2022, the LIPPC reached the required balance for the total life industry of ¥400 billion as specified by its Articles of Incorporation. As a result, additional contributions are not expected to be required unless the balance is reduced due to payments made by the LIPPC to the policyholders of insolvent insurers. Accordingly, Aflac Japan did not recognize an expense for LIPPC assessments for the three-month period ended March 31, 2023. Aflac Japan recognized an expense for LIPPC assessments of ¥.9 billion for the three-month period ended March 31, 2022.

Guaranty Fund Assessments

Under U.S. state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business. The amount of the guaranty fund assessment that an insurer is assessed is based on its proportionate share of premiums in that state. Guaranty fund assessments for the three-month periods ended March 31, 2023 and 2022 were immaterial.

LIQUIDITY AND CAPITAL RESOURCES

Liquidity refers to the ability to generate sufficient cash resources to meet the payment obligations of the Company. Capital refers to the long-term financial resources available to support the operations of the businesses, fund business growth and provide for an ability to withstand adverse circumstances. Financial leverage (leverage) refers to an investment strategy of using debt to increase the potential ROE. The Company targets and actively manages liquidity, capital and leverage in the context of a number of considerations, including:

business investment and growth needs
strategic growth objectives
financial flexibility and obligations
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capital support for hedging activity
a constantly evolving business and economic environment
a balanced approach to capital allocation and shareholder deployment.

The governance framework supporting liquidity, capital and leverage includes global senior management and board committees that review and approve all significant capital related decisions.

The Company's cash and cash equivalents include unrestricted cash on hand, money market instruments, and other debt instruments with a maturity of 90 days or less when purchased, all of which have minimal market, settlement or other risk exposure. The target minimum amount for the Parent Company’s cash and cash equivalents is approximately $1.8 billion to provide a capital buffer and liquidity support at the holding company. The Company remains committed to prudent liquidity and capital management. At March 31, 2023, the Company held $3.8 billion in cash and cash equivalents for stress conditions, which includes the Parent Company's target minimum amount of $1.8 billion.

Aflac Japan and Aflac U.S. generate cash flows from their operations and provide the primary sources of liquidity to the Parent Company through management fees and dividends, with Aflac Japan being the largest contributor. The primary uses of cash by the Parent Company are shareholder dividends, the repurchase of its common stock, interest on its outstanding indebtedness and operating expenses.
The following table presents the amounts provided to the Parent Company for the three-month periods ended March 31.

Liquidity Provided by Subsidiaries to Parent Company
(In millions)20232022
Management fees paid by subsidiaries$38 $33 
Dividends declared or paid by subsidiaries780 514 

The following table details Aflac Japan remittances, which are included in the totals above, for the three-month periods ended March 31.
Aflac Japan Remittances
(In millions of dollars and billions of yen)20232022
Aflac Japan management fees paid to Parent Company$16 $15 
Aflac Japan dividends declared or paid to Parent Company (in dollars)505 339 
Aflac Japan dividends declared or paid to Parent Company (in yen)¥67.3 ¥41.1 

The Company intends to maintain higher than historical levels of liquidity and capital at the Parent Company for stress conditions and with the goals of addressing the Company’s hedge costs and related potential need for collateral and mitigating against long-term weakening of the Japanese yen. Further, the Company plans to continue to maintain a portfolio of unhedged U.S. dollar-denominated investments at Aflac Japan and to consider whether the amount of such investments should be increased or decreased relative to the Company’s view of economic equity surplus in Aflac Japan in light of potentially rising hedge costs and other factors. See the Hedging Activity subsection of this MD&A for more information.

The Company believes that its balance of cash and cash equivalents and cash generated by operations will be sufficient to satisfy both its short-term and long-term cash requirements and plans for cash, including material cash requirements from known contractual obligations and returning capital to shareholders through share repurchases and dividends. For additional information, see the Liquidity and Capital Resources section of Item 7. MD&A in the 2022 Annual Report.

In addition to cash and cash equivalents, the Company also maintains credit facilities, both intercompany and with external partners, and a number of other available tools to support liquidity needs on a global basis. In September 2021, the Parent Company filed a shelf registration statement with the SEC that allows the Company to issue an indefinite amount of debt securities, in one or more series, from time to time until September 2024. The Company believes outside sources for additional debt and equity capital, if needed, will continue to be available. Additionally, as of March 31, 2023, the Parent Company and Aflac had four lines of credit with third parties and twelve intercompany lines of credit. The Company was in compliance with all of the covenants of its notes payable and lines of credit at March 31, 2023. For additional information, see Note 9 of the Notes to the Consolidated Financial Statements.

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As part of enterprise-wide capital management and optimization, the Company also utilizes the newly-created intercompany reinsurance platform to execute internal reinsurance transactions with Aflac Re. For additional information, see Note 8 of the Notes to the Consolidated Financial Statements.

The Company's consolidated financial statements convey its financing arrangements during the periods presented. The Company has not engaged in material intra-period short-term financings during the periods presented that are not otherwise reported in its balance sheet or disclosed therein. As of March 31, 2023, the Company had no material letters of credit, standby letters of credit, guarantees or standby repurchase obligations. The Company has not entered into transactions involving the transfer of financial assets with an obligation to repurchase financial assets that have been accounted for as a sale under applicable accounting standards, including securities lending transactions. See Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3, and 4 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for more information on the Company's securities lending and derivative activities. See Note 15 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for information on material unconditional purchase obligations that are not recorded on the Company's balance sheet. With the exception of disclosed activities in those referenced footnotes and the Risk Factors in the 2022 Annual Report entitled, "The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and "Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity," the Company is not aware of any trend, demand, commitment, event or uncertainty that would reasonably result in its liquidity increasing or decreasing by a material amount.
Consolidated Cash Flows

The Company consistently generates positive cash flows from operations, and has the ability to adjust cash flow management from other sources of liquidity including reinvestment cash flows and selling investments in order to meet short-term cash needs.

The Company translates cash flows for Aflac Japan’s yen-denominated items into U.S. dollars using weighted-average exchange rates. In periods when the yen weakens, translating yen into dollars causes fewer dollars to be reported. When the yen strengthens, translating yen into dollars causes more dollars to be reported.

The following table summarizes consolidated cash flows by activity for the three-month periods ended March 31.
(In millions)20232022
Operating activities$708 $1,260 
Investing activities105 (1,210)
Financing activities(933)(737)
Exchange effect on cash and cash equivalents(14)(89)
Net change in cash and cash equivalents$(134)$(776)

Operating Activities

The principal cash inflows for the Company's insurance activities come from insurance premiums and investment income. The principal cash outflows are the result of policy claims, operating expenses, income tax, as well as interest expense. As a result of policyholder aging, claims payments are expected to gradually increase over the life of a policy. Therefore, future policy benefit reserves are accumulated in the early years of a policy and are designed to help fund future claims payments.

The Company expects its future cash flows from premiums and investment portfolios to be sufficient to meet its cash needs for benefits and expenses.

Investing Activities

The Company's investment objectives provide for liquidity primarily through the purchase of publicly traded investment-grade debt securities. Prudent portfolio management dictates that the Company attempts to match the duration of its assets with the duration of its liabilities. Currently, when the Company's fixed maturity securities mature, the proceeds may be reinvested at a yield below that required for the accretion of policy benefit liabilities on policies issued in earlier years. However, the long-term nature of the Company's business and its strong cash flows provide the Company with the ability to minimize the effect of mismatched durations and/or yields identified by various asset adequacy analyses. From time to time or when market opportunities arise, the Company disposes of selected fixed maturity securities that are available for
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sale to improve the duration matching of assets and liabilities, improve future investment yields, and/or re-balance its portfolio. As a result, dispositions before maturity can vary significantly from year to year.

As part of its overall corporate strategy, the Company has committed $400 million to Aflac Ventures, LLC (Aflac Ventures), as opportunities emerge. Aflac Ventures is a subsidiary of Aflac Global Ventures, LLC (Aflac Global Ventures) which is reported in Corporate and other. The central mission of Aflac Global Ventures is to support the organic growth and business development needs of Aflac Japan and Aflac U.S. with an emphasis on digital applications designed to improve the customer experience, gain efficiencies, and develop new markets in an effort to enhance and defend long-term shareholder value. Investments are included in equity securities or the other investments line in the consolidated balance sheets.

As part of an arrangement with Federal Home Loan Bank of Atlanta (FHLB), Aflac U.S. obtains low-cost funding from FHLB supported by acceptable forms of collateral pledged by Aflac U.S. In the first three months of 2023, Aflac U.S. borrowed and repaid $37 million under this program. As of March 31, 2023, Aflac U.S. had outstanding borrowings of $591 million reported in its balance sheet.

See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.

Financing Activities

Cash flows from financing activities consist primarily of share repurchases, dividends to shareholders and from time to time debt issuances and redemptions.

Cash returned to shareholders through treasury stock purchases and dividends was $948 million during the three-month period ended March 31, 2023, compared with $750 million during the three-month period ended March 31, 2022.

The following tables present a summary of treasury stock activity during the three-month periods ended March 31.

Treasury Stock Purchased
(In millions of dollars and thousands of shares)20232022
Treasury stock purchases$700 $500 
Number of shares purchased:
Share repurchase program10,348 8,007 
Other347 343 
   Total shares purchased10,695 8,350 

Treasury Stock Issued
(In millions of dollars and thousands of shares)20232022
Stock issued from treasury:
   Cash financing$2 $
   Noncash financing18 17 
   Total stock issued from treasury$20 $26 
Number of shares issued458 526 

As of March 31, 2023, a remaining balance of 106.3 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors.

Cash dividends paid to shareholders were $.42 per share in the first quarter of 2023, compared with $.40 per share in the first quarter of 2022. The following table presents the dividend activity for the three-month periods ended March 31.

(In millions)20232022
Dividends paid in cash$248 $250 
Dividends through issuance of treasury shares9 
Total dividends to shareholders$257 $259 
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In April 2023, the board of directors declared the second quarter cash dividend of $.42 per share, an increase of 5.0% compared with the same period in 2022. The dividend is payable on June 1, 2023 to shareholders of record at the close of business on May 17, 2023.

Regulatory Restrictions

Aflac Japan

Aflac Japan is required to meet certain financial criteria as governed by Japanese corporate law in order to provide dividends to the Parent Company. Under these criteria, dividend capacity at the Japan subsidiary is basically defined as total equity excluding common stock and capital reserves (representing statutorily required amounts in Japan) but reduced for net after-tax unrealized losses on available-for-sale securities. These dividend capacity requirements are generally aligned with the SMR. Japan's Financial Services Agency (FSA) maintains its own solvency standard which is quantified through the SMR. Aflac Japan's SMR is sensitive to interest rate, credit spread, and foreign exchange rate changes; therefore, the Company continues to evaluate alternatives for reducing this sensitivity, including the reduction of subsidiary dividends paid to the Parent Company and Parent Company capital contributions. In the event of a rapid change in market risk conditions causing SMR to decline, the Company has one senior unsecured revolving credit facility in the amount of ¥100 billion and a committed reinsurance facility in the amount of approximately ¥120 billion as a capital contingency plan. Additionally, subject to market conditions, the Company expects that it could take action to enter into derivatives on unhedged U.S. dollar-denominated investments with foreign currency options or forwards or execute additional internal reinsurance transactions with Aflac Re. See Notes 8 and 9 of the Notes to the Consolidated Financial Statements for additional information.

The Company has already undertaken various measures to mitigate the sensitivity of Aflac Japan's SMR. For example, the Company employs policy reserve matching (PRM) investment strategies, which is a Japan-specific accounting treatment that reduces SMR interest rate sensitivity since PRM-designated investments are carried at amortized cost consistent with corresponding liabilities. In order for a PRM-designated asset to be held at amortized cost, there are certain criteria that must be maintained. The primary criterion relates to maintaining the duration of designated assets and liabilities within a specified tolerance range. If the duration difference is not maintained within the specified range without rebalancing, then a certain portion of the assets must be re-classified as available for sale and held at fair value with any associated unrealized gain or loss recorded in surplus. To rebalance, assets may need to be sold in order to maintain the duration with the specified range, resulting in realizing a gain or loss from the sale. For U.S. GAAP, PRM investments are categorized as available for sale. The Company also uses foreign currency derivatives to hedge a portion of its U.S. dollar-denominated investments. See Notes 3, 4 and 8 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for additional information on the Company's investment strategies, hedging activities, and reinsurance, respectively.

As of March 31, 2023, Aflac Japan's SMR remains high and reflects a strong capital and surplus position. The Company is committed to maintaining strong capital levels, consistent with maintaining current insurance financial strength and credit ratings.

The FSA is considering the introduction of an economic value-based solvency regime based on the Insurance Capital Standards (ICS) for insurance companies in Japan. The FSA continues to conduct field testing with insurance companies in Japan for the purpose of investigating the impact of the introduction of such regulations. Final specifications are expected to be decided in 2024, and a new capital regime to replace the current solvency regime is expected to be introduced in 2025.

Aflac U.S.

A life insurance company’s statutory capital and surplus is determined according to rules prescribed by the National Association of Insurance Commissioners (NAIC), as modified by the insurance department in the insurance company’s state of domicile. Statutory accounting rules are different from U.S. GAAP and are intended to emphasize policyholder protection and company solvency. The continued long-term growth of the Company's business may require increases in the statutory capital and surplus of its insurance operations. The Company's insurance operations may secure additional statutory capital through various sources, such as internally generated statutory earnings, reduced dividends paid to the Parent Company, capital contributions by the Parent Company from funds generated through debt or equity offerings, or reinsurance transactions. The NAIC’s Risk-based capital (RBC) formula is used by insurance regulators to help identify inadequately capitalized insurance companies. The RBC formula quantifies insurance risk, business risk, asset risk and
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interest rate risk by weighing the types and mixtures of risks inherent in the insurer’s operations. As of March 31, 2023, Aflac U.S.'s combined RBC ratio remains high and reflects a strong capital and surplus position.

Aflac, CAIC and TOIC are domiciled in Nebraska and are subject to its regulations. The maximum amount of dividends that can be paid to the Parent Company by Aflac, CAIC and TOIC without prior approval of Nebraska's director of insurance is the greater of the net income from operations, which excludes net investment gains, for the previous year determined under statutory accounting principles, or 10% of statutory capital and surplus as of the previous year-end. Dividends declared by Aflac during 2023 in excess of $1.1 billion would be considered extraordinary and require such approval. Similar laws apply in New York, the domiciliary jurisdiction of Aflac New York.

Privacy and Cybersecurity Governance

The Company’s Board of Directors has adopted an information security policy directing management to establish and operate a global information security program with the goals of monitoring existing and emerging threats and ensuring that the Company’s information assets and data, and the data of its customers, are appropriately protected from loss or theft. The Board has delegated oversight of the Company’s information security program to the Audit and Risk Committee. The Company’s senior officers, including its Global Chief Information Security Officer, are responsible for the operation of the global information security program and communicate quarterly with the Audit and Risk Committee on the program, including with respect to the state of the program, compliance with applicable regulations, current and evolving threats, and recommendations for changes in the information security program. The global information security program also includes a cybersecurity incident response plan that is designed to provide a management framework across Company functions for a coordinated assessment and response to potential security incidents. This framework establishes a protocol to report certain incidents to the Global Chief Information Security Officer and other senior officers, with the goal of timely assessing such incidents, determining applicable disclosure requirements and communicating with the Audit and Risk Committee. The incident response plan directs the executive officers to report certain incidents immediately and directly to the Lead Non-Management Director.

Other

For information regarding commitments and contingent liabilities, see Note 13 of the Notes to the Consolidated Financial Statements.
Additional Information

Investors should note that the Company announces material financial information in its SEC filings, press releases and public conference calls. In accordance with SEC guidance, the Company may also use the Investor Relations section of the Company's website (http://investors.aflac.com) to communicate with investors about the Company. It is possible that the financial and other information the Company posts there could be deemed to be material information. The information on the Company's website is not part of this document. Further, the Company's references to website URLs are intended to be inactive textual references only.

CRITICAL ACCOUNTING ESTIMATES

The Company prepares its financial statements in accordance with U.S. GAAP. These principles are established primarily by the Financial Accounting Standards Board (FASB). In this MD&A, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards Codification (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The estimates that the Company deems to be most critical to an understanding of its results of operations and financial condition are those related to the valuation of investments and derivatives, DAC, liabilities for future policy benefits, and income taxes. The preparation and evaluation of these critical accounting estimates involve the use of various assumptions developed from management’s analyses and judgments. Calculations of DAC and the liability for future policy benefits require the use of estimates based on actuarial valuation techniques. The application of these critical accounting estimates determines the values at which 93% of the Company's assets and 80% of its liabilities are reported as of March 31, 2023, and thus has a direct effect on net earnings and shareholders’ equity. Subsequent experience or use of other assumptions could produce significantly different results.

On January 1, 2023, the Company adopted Accounting Standards Update (ASU) 2018-12, Financial Services - Insurance: Targeted Improvements to the Accounting for Long-Duration Contracts (LDTI). The update significantly changes how insurers account for long-duration contracts and amends existing recognition, measurement, presentation, and disclosure requirements applicable to the Company related to liabilities for future policy benefits and DAC. As part of this adoption,
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the Company measures together all payments under an insurance contract including future expected claims and unpaid policy claims and related expenses, as an integrated reserve. This resulted in unpaid policy claims on long-duration insurance contracts and accrued claim adjustment expenses that were presented separately in the Company’s consolidated balance sheet pre-adoption to now be presented as part of liabilities for future policy benefits.

For additional information, see Note 1 of the Notes to the Consolidated Financial Statements in this document and in the 2022 Annual Report.

Guaranty Fund Assessments

The U.S. insurance industry has a policyholder protection system that is monitored and regulated by state insurance departments. These life and health insurance guaranty associations are state entities (in all 50 states as well as Puerto Rico and the District of Columbia) created to protect policyholders of an insolvent insurance company. All insurance companies (with limited exceptions) licensed to sell life or health insurance in a state must be members of that state’s guaranty association. Under state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business.

Guaranty fund assessments for the three-month periods ended March 31, 2023 and 2022 were immaterial.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A)
FORWARD-LOOKING INFORMATION
The Private Securities Litigation Reform Act of 1995 provides a safe harbor to encourage companies to provide prospective information, so long as those informational statements are identified as forward-looking and are accompanied by meaningful cautionary statements identifying important factors that could cause actual results to differ materially from those included in the forward-looking statements. Aflac Incorporated (the Parent Company) and its subsidiaries (collectively with the Parent Company, the Company) desire to take advantage of these provisions. This report contains cautionary statements identifying important factors that could cause actual results to differ materially from those projected herein, and in any other statements made by Company officials in communications with the financial community and contained in documents filed with the Securities and Exchange Commission (SEC). Forward-looking statements are not based on historical information and relate to future operations, strategies, financial results or other developments. Furthermore, forward-looking information is subject to numerous assumptions, risks and uncertainties. In particular, statements containing words such as the ones listed below or similar words, as well as specific projections of future results, generally qualify as forward-looking. The Company undertakes no obligation to update such forward-looking statements.
• expect• anticipate• believe• goal• objective
• may• should• estimate• intends• projects
• will• assumes• potential• target• outlook
The Company cautions readers that the following factors, in addition to other factors mentioned from time to time, could cause actual results to differ materially from those contemplated by the forward-looking statements:
difficult conditions in global capital markets and the economy, including inflation and the continued effects caused by COVID-19
defaults and credit downgrades of investments
global fluctuations in interest rates and exposure to significant interest rate risk
concentration of business in Japan
limited availability of acceptable yen-denominated investments
foreign currency fluctuations in the yen/dollar exchange rate
differing interpretations applied to investment valuations
significant valuation judgments in determination of expected credit losses recorded on the Company's investments
decreases in the Company's financial strength or debt ratings
decline in creditworthiness of other financial institutions
concentration of the Company's investments in any particular single-issuer or sector
major public health issues, including COVID-19 and any resulting or coincidental economic effects, on the Company's business and financial results
the Company's ability to attract and retain qualified sales associates, brokers, employees, and distribution partners
deviations in actual experience from pricing and reserving assumptions
ability to continue to develop and implement improvements in information technology systems and on successful execution of revenue growth and expense management initiatives
interruption in telecommunication, information technology and other operational systems, or a failure to maintain the security, confidentiality or privacy of sensitive data residing on such systems
subsidiaries' ability to pay dividends to the Parent Company
inherent limitations to risk management policies and procedures
operational risks of third party vendors
tax rates applicable to the Company may change
failure to comply with restrictions on policyholder privacy and information security
extensive regulation and changes in law or regulation by governmental authorities
competitive environment and ability to anticipate and respond to market trends
catastrophic events, including, but not limited to, as a result of climate change, epidemics, pandemics (such as COVID-19), tornadoes, hurricanes, earthquakes, tsunamis, war or other military action, terrorism or other acts of violence, and damage incidental to such events
ability to protect the Aflac brand and the Company's reputation
ability to effectively manage key executive succession
changes in accounting standards
level and outcome of litigation
allegations or determinations of worker misclassification in the United States
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MD&A OVERVIEW
MD&A is intended to inform the reader about matters affecting the financial condition and results of operations of Aflac Incorporated and its subsidiaries for the three-month periods ended March 31, 2023 and 2022, respectively. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, the following discussion should be read in conjunction with the consolidated financial statements and notes that are included in the Company's annual report on Form 10-K for the year ended December 31, 2022 (2022 Annual Report). In this MD&A, amounts may not foot due to rounding.

This MD&A is divided into the following sections:

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EXECUTIVE SUMMARY
Company Overview
Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) provide financial protection to millions of policyholders and customers in Japan and the U.S. The Company’s principal business is supplemental health and life insurance products with the goal to provide customers the best value in supplemental insurance products in the United States (U.S.) and Japan. The Company's insurance business consists of two reporting segments: Aflac Japan and Aflac U.S. The Parent Company’s primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. in Japan (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Aflac Benefits Solutions, Inc. (ABS), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.). The Parent Company, other operating business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other.
In 2022, the Company established Aflac Re Bermuda Ltd. (Aflac Re), a Bermuda domiciled insurer that reinsures certain policies issued by ALIJ. Aflac Re is subject to regulation in Bermuda, where the Bermuda Monetary Authority (BMA) has broad administrative powers relating to granting and revoking licenses to transact reinsurance business, approval of specific reinsurance transactions, capital requirements and solvency standards, limitations on dividends to shareholders, the nature of and limitations on investments, and the filing of financial statements in accordance with prescribed or permitted accounting practices. Financial results from Aflac Re are included in Corporate and other.
Performance Highlights
Total revenues were $4.8 billion in the first three months of 2023, compared with $5.2 billion in the first three months of 2022. Net earnings were $1.2 billion, or $1.94 per diluted share in the first three months of 2023, compared with $1.0 billion, or $1.60 per diluted share, in the first three months of 2022.
Results in the first quarter of 2023 included pretax net investment gains of $123 million, compared with pretax net investment gains of $122 million in the first three months of 2022. Net investment gains in the first three months of 2023 included an increase in credit loss allowances of $30 million; $99 million of net gains from certain derivative and foreign currency gains or losses; $3 million of net losses on equity securities; and $57 million of net gains from sales and redemptions.
The average yen/dollar exchange rate(1) for the three-month period ended March 31, 2023 was 132.30, or 12.2% weaker than the average yen/dollar exchange rate(1) of 116.18 for the same period in 2022.
Adjusted earnings(2) in the first quarter of 2023 were $1.0 billion, or $1.55 per diluted share, compared with $942 million, or $1.44 per diluted share, in the first quarter of 2022. The weaker yen/dollar exchange rate negatively impacted adjusted earnings per diluted share by $.07.
Total investments and cash at March 31, 2023 were $120.5 billion, compared with $117.4 billion at December 31, 2022. In the first quarter of 2023, Aflac Incorporated repurchased $700 million, or 10.3 million of its common shares. At March 31, 2023, the Company had 106.3 million remaining shares authorized for repurchase.
Shareholders’ equity was $19.8 billion, or $32.65 per share, at March 31, 2023, compared with $20.1 billion, or $32.73 per share, at December 31, 2022. Shareholders’ equity at March 31, 2023 included a cumulative decrease of $4.9 billion from the effect of changes in discount rate assumptions on insurance contracts, driven by the adoption of the new accounting guidance for long-duration insurance contracts, compared with a corresponding cumulative decrease of $2.1 billion at December 31, 2022, and a net unrealized gain on investment securities and derivatives of $1.3 billion, compared with a net unrealized loss of $729 million at December 31, 2022. Shareholders’ equity at March 31, 2023 also included an unrealized foreign currency translation lossof $3.6 billion, compared with an unrealized foreign currency translation loss of $3.6 billion at December 31, 2022. The annualized return on average shareholders’ equity in the first quarter of 2023 was 23.8%.
Shareholders’ equity excluding accumulated other comprehensive income (AOCI)(2) (adjusted book value) was $27.1 billion, or $44.66 per share at March 31, 2023, compared with $26.6 billion, or $43.18 per share, at December 31, 2022. The annualized adjusted return on equity (ROE) excluding foreign currencyimpact(2) in the first quarter of 2023 was 14.8%.

(1) Yen/U.S. dollar exchange rates are based on the published MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).
(2) See the Results of Operations section of this MD&A for a definition of this non-U.S. GAAP financial measure.
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RESULTS OF OPERATIONS
The Company earns its revenues principally from insurance premiums and investments. The Company’s operating expenses primarily consist of insurance benefits provided and reserves established for anticipated future insurance benefits, general business expenses, commissions and other costs of selling and servicing its products. Profitability for the Company depends principally on its ability to price its insurance products at a level that enables the Company to earn a margin over the costs associated with providing benefits and administering those products. Profitability also depends on, among other items, actuarial and policyholder behavior experience on insurance products, and the Company's ability to attract and retain customer assets, generate and maintain favorable investment results, effectively deploy capital and utilize tax capacity, and manage expenses.

This document includes references to the Company’s financial performance measures which are not calculated in accordance with United States generally accepted accounting principles (U.S. GAAP) (non-U.S. GAAP). The financial measures exclude items that the Company believes may obscure the underlying fundamentals and trends in insurance operations because they tend to be driven by general economic conditions and events or related to infrequent activities not directly associated with insurance operations.

Due to the size of Aflac Japan, where the functional currency is the Japanese yen, fluctuations in the yen/dollar exchange rate can have a significant effect on reported results. In periods when the yen weakens, translating yen into dollars results in fewer dollars being reported. When the yen strengthens, translating yen into dollars results in more dollars being reported. Consequently, yen weakening has the effect of suppressing current period results in relation to the comparable prior period, while yen strengthening has the effect of magnifying current period results in relation to the comparable prior period. A significant portion of the Company’s business is conducted in yen and never converted into dollars but translated into dollars for U.S. GAAP reporting purposes, which results in foreign currency impact to earnings, cash flows and book value on a U.S. GAAP basis. Management evaluates the Company's financial performance both including and excluding the impact of foreign currency translation to monitor, respectively, cumulative currency impacts and the currency-neutral operating performance over time. The average yen/dollar exchange rate is based on the published MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).

The Company defines the non-U.S. GAAP financial measures included in this document as follows:

Adjusted earnings are adjusted revenues less benefits and adjusted expenses. Adjusted earnings per share (basic or diluted) are the adjusted earnings for the period divided by the weighted average outstanding shares (basic or diluted) for the period presented. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding adjusted net investment gains and losses. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect the Company's underlying business performance. Management uses adjusted earnings and adjusted earnings per diluted share to evaluate the financial performance of the Company’s insurance operations on a consolidated basis and believes that a presentation of these financial measures is vitally important to an understanding of the underlying profitability drivers and trends of the Company’s insurance business. The most comparable U.S. GAAP financial measures for adjusted earnings and adjusted earnings per share (basic or diluted) are net earnings and net earnings per share, respectively.

Adjusted net investment gains and losses are net investment gains and losses adjusted for i) amortized hedge cost/income related to foreign currency exposure management strategies and certain derivative activity, ii) net interest cash flows from foreign currency and interest rate derivatives associated with certain investment strategies, which are both reclassified to net investment income, and iii) the impact of interest cash flows from derivatives associated with notes payable, which is reclassified to interest expense as a component of total adjusted expenses. The Company considers adjusted net investment gains and losses important as it represents the remainder amount that is considered outside management’s control, while excluding the components that are within management’s control and are accordingly reclassified to net investment income and interest expense. The most comparable U.S. GAAP financial measure for adjusted net investment gains and losses is net investment gains and losses.

Amortized hedge costs/income represent costs/income incurred or recognized as a result of using foreign currency derivatives to hedge certain foreign exchange risks in the Company's Japan segment or in Corporate and other. These amortized hedge costs/ income are estimated at the inception of the derivatives based on the specific terms of each contract and are recognized on a straight-line basis over the term of the hedge. The Company believes that amortized hedge costs/income measure the periodic currency risk management costs/
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income related to hedging certain foreign currency exchange risks and are an important component of net investment income. There is no comparable U.S. GAAP financial measure for amortized hedge costs/ income.

Adjusted earnings excluding current period foreign currency impact are computed using the average foreign currency exchange rate for the comparable prior-year period, which eliminates fluctuations driven solely by foreign currency exchange rate changes. Adjusted earnings per diluted share excluding current period foreign currency impact is adjusted earnings excluding current period foreign currency impact divided by the weighted average outstanding diluted shares for the period presented. The Company considers adjusted earnings excluding current period foreign currency impact and adjusted earnings per diluted share excluding current period foreign currency impact important because a significant portion of the Company's business is conducted in Japan and foreign exchange rates are outside management’s control; therefore, the Company believes it is important to understand the impact of translating foreign currency (primarily Japanese yen) into U.S. dollars. The most comparable U.S. GAAP financial measures for adjusted earnings excluding current period foreign currency impact and adjusted earnings per diluted share excluding current period foreign currency impact are net earnings and net earnings per share, respectively.

Adjusted book value is the U.S. GAAP book value (representing total shareholders’ equity), less AOCI as recorded on the U.S. GAAP balance sheet. Adjusted book value per common share is adjusted book value at the period end divided by the ending outstanding common shares for the period presented. The Company considers adjusted book value and adjusted book value per common share important as they exclude AOCI, which fluctuates due to market movements that are outside management’s control. The most comparable U.S. GAAP financial measures for adjusted book value and adjusted book value per common share are total book value and total book value per common share, respectively.

Adjusted return on equity excluding foreign currency impact is adjusted earnings excluding the current period foreign currency impact divided by average shareholders’ equity, excluding AOCI. The Company considers adjusted return on equity excluding foreign currency impact important as it excludes changes in foreign currency and components of AOCI, which fluctuate due to market movements that are outside management's control. The most comparable U.S. GAAP financial measure for adjusted return on equity excluding foreign currency impact is ROE as determined using net earnings and average total shareholders’ equity.

U.S. dollar-denominated investment income excluding foreign currency impact represents amounts excluding foreign currency impact on U.S. dollar-denominated investment income using the average foreign currency exchange rate for the comparable prior year period. The Company considers U.S. dollar-denominated investment income excluding foreign currency impact important as it eliminates the impact of foreign currency changes on the Aflac Japan segment results, which are outside management’s control. The most comparable U.S. GAAP financial measure for U.S. dollar-denominated investment income excluding foreign currency impact is the corresponding net investment income amount from the U.S. dollar denominated investments translated to yen.

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The following table is a reconciliation of items impacting adjusted earnings and adjusted earnings per diluted share to the most directly comparable U.S. GAAP financial measures of net earnings and net earnings per diluted share, respectively.
Reconciliation of Net Earnings to Adjusted Earnings
  
In MillionsPer Diluted Share
Three Months Ended March 31,
2023202220232022
Net earnings$1,188 $1,047 $1.94 $1.60 
Items impacting net earnings:
Adjusted net investment (gains) losses (1)
(209)(134)(.34)(.21)
Other and non-recurring (income) loss0 .00 .00 
Income tax (benefit) expense on items excluded from adjusted earning(26)28 (.04).04 
Adjusted earnings953 942 1.55 1.44 
Current period foreign currency impact (2)
41 N/A.07 N/A
Adjusted earnings excluding current period foreign currency impact$994 $942 $1.62 $1.44 
(1) See reconciliation of net investment (gains) losses to adjusted net investment (gains) losses below.
(2) Prior period foreign currency impact reflected as “N/A” to isolate change for current period only.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

Reconciling Items

Net Investment Gains and Losses

Reconciliation of Net Investment (Gains) Losses to Adjusted Net Investment (Gains) Losses
Three Months Ended March 31,
(In millions)20232022
Net investment (gains) losses$(123)$(122)
Items impacting net investment (gains) losses:
Amortized hedge costs(58)(26)
Amortized hedge income29 11 
Net interest cash flows from derivatives associated
  with certain investment strategies
(69)(9)
Interest rate component of the change in fair value
  of foreign currency swaps on notes payable
12 13 
Adjusted net investment (gains) losses$(209)$(134)

The Company's investment strategy is to invest primarily in fixed maturity securities to provide a reliable stream of investment income, which is one of the drivers of the Company’s profitability. This investment strategy incorporates asset-liability matching (ALM) to align the expected cash flows of the portfolio to the needs of the Company's liability structure. The Company does not purchase securities with the intent of generating investment gains or losses. However, investment gains and losses may be realized as a result of changes in the financial markets and the creditworthiness of specific issuers, tax planning strategies, and/or general portfolio management and rebalancing. The realization of investment gains and losses is independent of the underwriting and administration of the Company's insurance products.

Net investment gains and losses excluded from adjusted earnings include the following:

Securities Transactions
Credit Losses
Changes in the Fair Value of Equity Securities
Certain Derivative and Foreign Currency Activities.

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Securities Transactions, Credit Losses and Changes in the Fair Value of Equity Securities

Securities transactions include gains and losses from sales and redemptions of investments where the amount received is different from the amortized cost of the investment. Credit losses include losses for held-to-maturity fixed maturity securities, available-for-sale fixed maturity securities, loan receivables, loan commitments and reinsurance recoverables. Changes in the fair value of equity securities are the result of gains or losses driven by fluctuations in market prices.

Certain Derivative and Foreign Currency Activities

The Company's derivative activities include:

foreign currency forwards and options used in hedging foreign exchange risk on U.S. dollar-denominated investments in Aflac Japan's portfolio, with options used on a standalone basis and/or in a collar strategy;

foreign currency forwards and options used to economically hedge certain portions of forecasted cash flows denominated in yen and hedge the Company's long term exposure to a weakening yen;

cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and subordinated debentures;

foreign currency swaps that are associated with variable interest entity (VIE) bond purchase commitments, and investments in special-purpose entities, including VIEs where the Company is the primary beneficiary;

interest rate swaps used to economically hedge interest rate fluctuations in certain variable-rate investments;

interest rate swaptions used to hedge changes in the fair value associated with interest rate fluctuations for certain U.S. dollar-denominated available-for-sale fixed-maturity securities; and

bond purchase commitments at the inception of investments in consolidated VIEs.

Gains and losses are recognized as a result of valuing these derivatives, net of the effects of hedge accounting. The Company also excludes from adjusted earnings the accounting impacts of remeasurement associated with changes in the foreign currency exchange rate.

For additional information regarding net investment gains and losses, including details of reported amounts for the periods presented, see Notes 3 and 4 of the Notes to the Consolidated Financial Statements.

Other and Non-recurring Items

The U.S. insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. The system can result in periodic charges to the Company as a result of insolvencies/bankruptcies that occur with other companies in the life insurance industry. Some states permit member insurers to recover assessments paid through full or partial premium tax offsets. These charges neither relate to the ordinary course of the Company’s business nor reflect the Company’s underlying business performance, but result from external situations not controlled by the Company. The Company excludes any charges associated with U.S. guaranty fund assessments and the corresponding tax benefit or expense from adjusted earnings.

In Japan, the government also requires the insurance industry to contribute to a policyholder protection corporation that provides funds for the policyholders of insolvent insurers; however, these costs are calculated and administered differently than in the U.S. In Japan, these costs are not directly related to specific insolvencies or bankruptcies, but are rather a regular operational cost for an insurance company. Based on this structure, the Company does not remove the Japan policyholder protection expenses from adjusted earnings.

The Company considers the costs associated with the early redemption of its debt to be unrelated to the underlying fundamentals and trends in its insurance operations. Additionally, these costs are driven by changes in interest rates subsequent to the issuance of the debt, and the Company considers these interest rate changes to represent economic conditions not directly associated with its insurance operations.
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Income Taxes

The Company's combined U.S. and Japanese effective income tax rate on pretax earnings was 11.5% for the three-month period ended March 31, 2023, compared with 19.1% for the same period in 2022. The combined effective tax rate differs from the U.S. statutory rate primarily due to historic and solar tax credits and the exclusion of foreign currency translation gains and losses held in the Delaware Statutory Trust. For additional information, see the Critical Accounting Estimates - Income Taxes section of Item 7. MD&A in the 2022 Annual Report.

The Company expects that its effective tax rate on adjusted earnings for future periods will be approximately 20%. The effective tax rate continues to be subject to future tax law changes both in the U.S. and in foreign jurisdictions. See the risk factor entitled "Tax rates applicable to the Company may change" in Item 1A. Risk Factors of the 2022 Annual Report for more information.

Foreign Currency Translation

Aflac Japan’s premiums and a significant portion of its investment income are received in yen, and its claims and most expenses are paid in yen. Aflac Japan purchases yen-denominated assets and U.S. dollar-denominated assets, which may be hedged to yen, to support yen-denominated policy liabilities. Yen-denominated income statement accounts are translated to U.S. dollars using the weighted average Japanese yen/U.S. dollar foreign exchange rate for the reporting period, except realized gains and losses on securities transactions which are translated at the exchange rate on the trade date of each transaction. Yen-denominated balance sheet accounts are translated to U.S. dollars using the spot Japanese yen/U.S. dollar foreign exchange rate at the end of the reporting period.

RESULTS OF OPERATIONS BY SEGMENT

U.S. GAAP financial reporting requires that a company report financial and descriptive information about operating segments in its annual and interim period financial statements. Furthermore, the Company is required to report a measure of segment profit or loss, certain revenue and expense items, and segment assets. The Company's insurance business consists of two segments: Aflac Japan and Aflac U.S. Aflac Japan is the principal contributor to consolidated earnings. In addition, the Parent Company, other business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other. See Item 1. Business in the 2022 Annual Report for a summary of each segment's products and distribution channels.

Consistent with U.S. GAAP guidance for segment reporting, pretax adjusted earnings is the Company's U.S. GAAP measure of segment performance. The Company believes that a presentation of this measure is vitally important to an understanding of the underlying profitability drivers and trends of its business. Additional performance measures used to evaluate the financial condition and performance of the Company's segments are listed below.

Operating Ratios
New Annualized Premium Sales
New Money Yield
Return on Average Invested Assets
Average Weekly Producer
Premium Persistency

For additional information on the Company’s performance measures included in this MD&A, see the Glossary of Selected Terms found directly following Part II. Other Information. See Note 2 of the Notes to the Consolidated Financial Statements for the reconciliation of segment results to the Company's consolidated U.S. GAAP results and additional information.
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AFLAC JAPAN SEGMENT
Aflac Japan Pretax Adjusted Earnings
Changes in Aflac Japan’s pretax adjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac Japan.

Aflac Japan Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$2,170 $2,625 
Net investment income: (1)
Yen-denominated investment income263 299 
U.S. dollar-denominated investment income407 406 
Net investment income669 705 
Amortized hedge costs related to certain foreign currency exposure management strategies(58)26 
Adjusted net investment income611 680 
Other income (loss)9 
Total adjusted revenues2,790 3,314 
Benefits and claims:
Benefits and claims, excluding reserve remeasurement1,466 1,793 
Reserve remeasurement (gains) losses(13)(14)
Total benefits and claims, net1,453 1,779 
Adjusted expenses:
Amortization of deferred policy acquisition costs85 94 
Insurance commissions138 161 
Insurance and other expenses326 409 
Total adjusted expenses549 664 
Total benefits and adjusted expenses2,002 2,443 
           Pretax adjusted earnings$788 $870 
Weighted-average yen/dollar exchange rate132.30 116.18 
In DollarsIn Yen
Percentage change over
 previous period:
Three Months Ended March 31,Three Months Ended March 31,
2023202220232022
Net earned premiums(17.3)%(11.5)%(5.9)%(2.8)%
Adjusted net investment income(10.1)(3.6)2.4 5.9 
Total adjusted revenues(15.8)(10.0)(4.1)(1.2)
Pretax adjusted earnings(9.4)(5.0)3.2 4.7 
(1) Net interest cash flows from derivatives associated with certain investment strategies of $(62) and $(10) for the three-month periods ended March 31, 2023 and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, Aflac Japan's net earned premiums decreased, in yen terms, mainly due to limited-pay products reaching premium paid-up status and the implementation of the Aflac Re global reinsurance strategy. Adjusted net investment income, in yen terms, increased in the three-month period ended March 31, 2023, primarily due to the impact of foreign exchange on U.S. dollar-denominated investments offset by higher hedge costs. The increase in pretax adjusted earnings in yen for the three-month period ended March 31, 2023 was primarily due to a decrease in total benefits and adjusted expenses.

Annualized premiums in force decreased 4.8% to ¥1.28 trillion as of March 31, 2023, compared with ¥1.35 trillion as of March 31, 2022. The decrease in annualized premiums in force in yen was driven primarily by limited-pay products
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reaching premium paid-up status and lower sales. Annualized premiums in force, translated into dollars at respective period-end exchange rates, were $9.6 billion at March 31, 2023, compared with $11.0 billion at March 31, 2022. As of March 31, 2023, Aflac Japan exceeded 23 million individual policies in force in Japan, with more than 14 million cancer policies in force in Japan.

Aflac Japan's investment portfolios include U.S. dollar-denominated securities and reverse-dual currency securities (yen-denominated debt securities with dollar coupon payments). In years when the yen strengthens in relation to the dollar, translating Aflac Japan's U.S. dollar-denominated investment income into yen lowers growth rates for net investment income, total adjusted revenues, and pretax adjusted earnings in yen terms. In years when the yen weakens, translating U.S. dollar-denominated investment income into yen magnifies growth rates for net investment income, total adjusted revenues, and pretax adjusted earnings in yen terms.

The following table illustrates the effect of translating Aflac Japan’s U.S. dollar-denominated investment income and related items into yen by comparing certain segment results with those that would have been reported had foreign currency exchange rates remained unchanged from the comparable period in the prior year. Amounts excluding foreign currency impact on U.S. dollar-denominated investment income were determined using the average foreign currency exchange rate for the comparable prior year period. See non-U.S. GAAP financial measures defined above.
Aflac Japan Percentage Changes Over Previous Period
(Yen Operating Results)
For the Periods Ended March 31,
  
Including Foreign
Currency Changes
Excluding Foreign
Currency Changes
Three MonthsThree Months
  
2023202220232022
Adjusted net investment income2.4 %5.9 %(5.9)%.3 %
Total adjusted revenues(4.1)(1.2)(5.8)(2.3)
Pretax adjusted earnings3.2 4.7 (3.0).5 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

The following table presents a summary of operating ratios in yen terms for Aflac Japan.
  
Three Months Ended March 31,
Ratios to total adjusted revenues:20232022
Total benefits and claims, net52.1 %53.7 %
Adjusted expenses:
Amortization of deferred policy acquisition costs3.1 2.8 
Insurance commissions4.9 4.8 
Insurance and other expenses11.7 12.4 
Total adjusted expenses19.7 20.0 
Pretax adjusted earnings28.2 26.2 
Ratios to total premiums:
Total benefits and claims, net67.0 %67.9 %
Adjusted expenses:
Amortization of deferred policy acquisition costs3.9 3.6 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, the total benefits and claims ratio to total premiums decreased, compared with the same period in the prior year, primarily due to a decrease in the third sector benefit ratio due to favorable experience and the continued change in the mix of first and third sector business. In the three-month period ended March 31, 2023, the total adjusted expense ratio decreased slightly, compared with the same period in the prior year, reflecting the decrease in total adjusted revenues and an offsetting decrease in total adjusted expenses due to expense control efforts as well as the reinsurance transaction with Aflac Re. In total, the pretax adjusted profit margin
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increased in the three-month period ended March 31, 2023 primarily due to a lower benefit ratio and a lower expense ratio and an offsetting decrease in total adjusted revenues.

The following table presents Aflac Japan's premium persistency on a 12-month rolling basis as of March 31.
20232022
Premium persistency93.9 %94.3 %

Aflac Japan Sales

The following table presents Aflac Japan’s new annualized premium sales for the periods ended March 31.
  
In DollarsIn Yen
Three MonthsThree Months
(In millions of dollars and billions of yen)2023202220232022
New annualized premium sales$100 $103 ¥13.2 ¥11.9 
Increase (decrease) over prior period(3.2)%(22.4)%10.8 %(14.8)%

In 2023, the new annualized premium sales on a yen basis increased, compared with 2022, due primarily to sales of Aflac Japan's new cancer insurance product and updated first sector products, all of which were launched in the second half of 2022. Further, these products were launched at Dai-ichi Life and other financial institutions in January 2023.

The following table details the contributions to Aflac Japan's new annualized premium sales by major insurance product for the periods ended March 31.
  Three Months
  20232022
Cancer59.9 %53.0 %
Medical and other health:
Medical20.8 31.4 
Income support.6 1.1 
Life insurance:
Traditional life (1)
7.3 9.0 
WAYS8.9 .7 
Child endowment.6 .3 
Other1.9 4.5 
    Total100.0 %100.0 %
(1) Includes term and whole life

The foundation of Aflac Japan's product portfolio has been, and continues to be, third sector products, which include cancer, medical, income support, and nursing care insurance products. With continued cost pressure on Japan’s health care system, the Company expects the need for third sector products will continue to rise in the future and that the medical and cancer insurance products Aflac Japan provides will continue to be an important part of its product portfolio. Moreover, in November 2022, Aflac Japan refreshed its first sector savings-type products WAYS and Child Endowment and began to actively promote sales of these products after having curtailed sales of both products beginning in 2013. The refreshment of these first sector products position Aflac Japan for potential future long-term sales opportunities by marketing these products to a younger demographic as well as potential cross-selling opportunities of Aflac Japan's third sector products.

Sales of Aflac Japan cancer insurance products in the Japan Post Group channel experienced a material decline beginning in August 2019. Japan Post Group resumed proactive sales of cancer insurance policies in April 2021 and Aflac Japan continues to strengthen the strategic alliance. In April 2023, Japan Post Group began selling Aflac Japan's new cancer insurance product that was launched in August 2022. For additional information, see the risk factor entitled "Sales of the Company's products and services are dependent on its ability to attract, retain and support a network of qualified sales associates, brokers and employees in the U.S. and sales associates and other distribution partners in Japan," in Item 1A. Risk Factors in the 2022 Annual Report.
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Aflac Japan continues to promote digital and web-based sales to groups and use of its system that enables smart device-based insurance application by allowing the customer and an Aflac Japan operator to see the same screen through their smart devices. Further, Aflac Japan continues to utilize its virtual sales tool that enables online consultations and policy applications to be completed entirely online.

The following table details the contributions to Aflac Japan's new annualized premium sales by agency type for the three-month periods ended March 31.
20232022
Independent corporate and individual50.9 %48.9 %
Affiliated corporate (1)
45.4 46.5 
Bank3.7 4.6 
Total100.0 %100.0 %
(1) Includes Japan Post Group, Dai-ichi Life and Daido Life

During the three-month period ended March 31, 2023, Aflac Japan recruited 4 new sales agencies. At March 31, 2023, Aflac Japan was represented by approximately 7,300 sales agencies, with approximately 110,000 licensed sales associates employed by those agencies. The number of sales agencies has declined in recent years due to Aflac Japan's focus on supporting agencies with strong management frameworks, high productivity and more producing agents.

At March 31, 2023, Aflac Japan had agreements to sell its products at 359 banks, approximately 90% of the total number of banks in Japan.

Aflac Japan Investments

The level of investment income in yen is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, the effect of yen/dollar exchange rates on U.S. dollar-denominated investment income, and other factors.

As part of the Company's portfolio management and asset allocation process, Aflac Japan invests in yen and U.S. dollar-denominated investments. Yen-denominated investments primarily consist of JGBs, public and private fixed maturity securities and public equity securities. Aflac Japan's U.S. dollar-denominated investments include fixed maturity investments and growth assets, including alternative investments in limited partnerships or similar investment vehicles. Aflac Japan has been investing in both publicly traded and privately originated U.S. dollar-denominated investment-grade and below-investment-grade fixed maturity securities and loan receivables, and has entered into foreign currency forwards and options to hedge the currency risk on the fair value of a portion of the U.S. dollar investments.

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The following table details the investment purchases for Aflac Japan.
Three Months Ended March 31,
(In millions)20232022
Yen-denominated:
  Fixed maturity securities:
     Japan government and agencies$151 $
     Private placements273 307 
     Other fixed maturity securities77 17 
  Equity securities123 91 
  Other investments6 
        Total yen-denominated$630 $418 
U.S. dollar-denominated:
  Fixed maturity securities:
     Other fixed maturity securities$376 $85 
     Collateralized loan obligations0 67 
  Commercial mortgage and other loans:
     Transitional real estate loans53 507 
     Middle market loans150 311 
  Other investments137 48 
        Total U.S. dollar-denominated$716 $1,018 
            Total Aflac Japan purchases$1,346 $1,436 

See the Investments section of this MD&A for further discussion of these investment programs, and see Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for more information regarding loans and loan receivables.

The following table presents the results of Aflac Japan’s investment yields for the periods ended March 31.
  Three Months
  20232022
Total purchases for the period (in millions) (1)
$1,203 $1,385 
New money yield (1),(2)
5.18 %3.90 %
Return on average invested assets (3)
2.57 2.54 
Portfolio book yield, including U.S. dollar-denominated investments, end of period (1),(2)
3.13 %2.62 %
(1) Includes fixed maturity securities, commercial mortgage and other loans, equity securities, and excludes alternative investments in limited partnerships
(2) Reported on a gross yield basis; excludes investment expenses, external management fees, and amortized hedge costs
(3) Net of investment expenses and amortized hedge costs, year-to-date number reflected on a quarterly average basis

The increase in the Aflac Japan new money yield in the three-month period ended March 31, 2023 was primarily due to increases in U.S. interest rates. See Notes 3, 4 and 5 of the Notes to the Consolidated Financial Statements and the Investments and Hedging Activities sections of this MD&A for additional information on the Company's investments and hedging strategies.

AFLAC U.S. SEGMENT
Aflac U.S. Pretax Adjusted Earnings
Changes in Aflac U.S. pretax adjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac U.S.
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Aflac U.S. Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$1,428 $1,413 
Adjusted net investment income (1)
197 184 
Other income35 42 
Total adjusted revenues1,660 1,639 
Benefits and claims:
Benefits and claims, excluding reserve remeasurement691 686 
Reserve remeasurement (gains) losses(40)(20)
Total benefits and claims651 666 
Adjusted expenses:
Amortization of deferred policy acquisition costs119 114 
Insurance commissions142 140 
Insurance and other expenses395 387 
Total adjusted expenses657 640 
Total benefits and adjusted expenses1,308 1,306 
             Pretax adjusted earnings$352 $333 
Percentage change over previous period:
Net earned premiums1.1 %(.6)%
Adjusted net investment income7.1 4.5 
Total adjusted revenues1.3 .7 
Pretax adjusted earnings5.7 .6 
(1) Net interest cash flows from derivatives associated with certain investment strategies of $(7) and $1 for the three-month periods ended March 31, 2023 and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, net earned premiums for Aflac U.S. increased primarily driven by continued investments in growth initiatives. Adjusted net investment income increased in the three-month period ended March 31, 2023 primarily due to higher floating rate income due to higher volumes and rates. The increase in pretax adjusted earnings in the three-month period ended March 31, 2023 was driven primarily by lower benefits and higher revenues, partially offset by higher expenses.

Annualized premiums in force increased 1.4% to $6.0 billion at March 31, 2023, compared with $5.9 billion at March 31, 2022.
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The following table presents a summary of operating ratios for Aflac U.S.
  
Three Months Ended March 31,
Ratios to total adjusted revenues:20232022
Total benefits and claims39.2 %40.7 %
Adjusted expenses:
Amortization of deferred policy acquisition costs7.2 7.0 
Insurance commissions8.6 8.5 
Insurance and other expenses23.8 23.5 
Total adjusted expenses39.6 39.0 
  Pretax adjusted earnings21.2 20.3 
Ratios to total premiums:
Total benefits and claims45.6 %47.1 %
Adjusted expenses:
Amortization of deferred policy acquisition costs8.3 8.1 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

For the three-month period ended March 31, 2023, the total benefits and claims ratio to total premiums decreased compared with the same period in 2022, reflecting assumption updates in the third quarter of 2022 and reserve remeasurement gains related to experience. The total adjusted expense ratio increased in the three-month period ended March 31, 2023, when compared with the same period in 2022, primarily due to higher planned spending, reflecting ongoing investments in the U.S. platform and higher DAC amortization associated with lower persistency. The pretax adjusted profit margin increased in the three-month period ended March 31, 2023, compared with the same period in 2022, primarily due to the lower benefit ratio.

The following table presents premium persistency for Aflac U.S. on a 12-month rolling basis as of March 31.
20232022
Premium persistency77.9 %78.7 %

Aflac U.S. Sales
The following table presents Aflac's U.S. new annualized premium sales for the periods ended March 31.
Three Months
(In millions)20232022
New annualized premium sales$315 $299 
Increase (decrease) over prior period5.3 %19.0 %

New annualized premium sales for accident insurance decreased 1.8%; disability sales increased 13.8%; critical care insurance sales (including cancer insurance) increased 1.8%; hospital indemnity insurance sales increased .2%; dental/vision sales increased 22.7%; and life sales increased 10.3% in the first quarter of 2023, compared with the first quarter of 2022. The increase in sales for Aflac U.S. in the first quarter of 2023 reflects continued improvement from investment in growth initiatives as well as productivity gains.
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The following table details the contributions to Aflac's U.S. new annualized premium sales by major insurance product category for the periods ended March 31.
  
Three Months
20232022
Accident23.5 %25.3 %
Disability25.2 23.3 
 Critical care(1)
20.5 21.2 
Hospital indemnity15.9 16.7 
Dental/vision6.6 5.6 
Life8.3 7.9 
Total100.0 %100.0 %
(1) Includes cancer, critical illness, and hospital intensive care products

In the first quarter of 2023, the Aflac U.S. sales force included an average of approximately 6,100 U.S. agents, including brokers, who were actively producing business on a weekly basis. The Company believes that this average weekly producer equivalent metric allows sales management to monitor progress and needs, as well as serve as a leading indicator of future production capacity.

Aflac U.S. Investments

The level of investment income is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, and other factors.

As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. has been investing in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loan receivables.

The following table details the investment purchases for Aflac U.S.
Three Months Ended March 31,
(In millions)20232022
Fixed maturity securities:
     Other fixed maturity securities$209 $232 
     Infrastructure debt0 
Equity securities0 
Commercial mortgage and other loans:
     Transitional real estate loans14 107 
     Middle market loans19 166 
Other investments15 
        Total Aflac U.S. Purchases$257 $528 

See Note 3 of the Notes to the Consolidated Financial Statements and Notes 1 and 3 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for more information regarding loans and loans receivables.

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The following table presents the results of Aflac's U.S. investment yields for the periods ended March 31.
Three Months
  
20232022
Total purchases for period (in millions) (1)
$242 $523 
New money yield (1),(2)
7.01 %4.60 %
Return on average invested assets (3)
4.74 4.61 
Portfolio book yield, end of period (1),(2)
5.46 %4.95 %
(1) Includes fixed maturity securities, commercial mortgage and other loans, equity securities, and excludes alternative investments in limited partnerships
(2) Reported on a gross yield basis; excludes investment expenses and external management fees
(3) Net of investment expenses, year-to-date number reflected on a quarterly average basis

The increase in the Aflac U.S. new money yield in the three-month period ended March 31, 2023 was primarily due to increases in U.S. interest rates. See Notes 3 and 5 of the Notes to the Consolidated Financial Statements and the Investments section of this MD&A for additional information on the Company's investments.

CORPORATE AND OTHER

Changes in the pretax adjusted earnings of Corporate and other are primarily affected by investment income. The following table presents a summary of results for Corporate and other.
Corporate and Other Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$91 $41 
Net investment income (loss) (1)
7 
Amortized hedge income related to certain foreign currency management strategies29 11 
Adjusted net investment income36 15 
Other income2 18 
Total adjusted revenues129 74 
Total benefits and claims, net46 37 
Adjusted expenses:
Interest expense33 40 
Other adjusted expenses57 40 
Total adjusted expenses90 80 
Total benefits and adjusted expenses136 116 
Pretax adjusted earnings$(7)$(42)
(1) The change in value of federal historic rehabilitation and solar investments in partnerships of $51 and $12 for the three-month periods ended March 31, 2023, and 2022, respectively, is included as a reduction to net investment income. Tax credits on these investments of $52 and $16 for the three-month periods ended March 31, 2023, and 2022, respectively, have been recorded as an income tax benefit in the consolidated statement of earnings. See Note 3 of the Notes to the Consolidated Financial Statements for additional information on these investments.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, total adjusted revenues increased compared to the same period in 2022 primarily due to higher total premiums associated with the Aflac Re global reinsurance strategy and an increase in adjusted net investment income. Total adjusted expenses increased compared to the same period in 2022 primarily due to expenses associated with the Aflac Re global reinsurance strategy. These results also reflect the impact of foreign currency on total net earned premiums and the corresponding benefits. Pretax adjusted earnings increased in the three-month period ended March 31, 2023 when compared to the same period in 2022 reflecting the increase in total adjusted revenue, partially offset by higher other adjusted expenses, net benefits and claims.

The Parent Company invests in partnerships that specialize in rehabilitating historic structures or the installation of solar equipment in order to receive federal historic rehabilitation and solar tax credits. These investments are classified as
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limited partnerships and included in other investments in the consolidated balance sheet. The change in value of each investment is recorded as a reduction to net investment income. Tax credits generated by these investments are recorded as an income tax benefit in the consolidated statement of earnings.

INVESTMENTS

The Company’s investment strategy utilizes disciplined asset and liability management while seeking long-term risk-adjusted investment returns and the delivery of stable income within regulatory and capital objectives, and preserving shareholder value. In attempting to optimally balance these objectives, the Company seeks to maintain on behalf of Aflac Japan a diversified portfolio of yen-denominated investment assets, U.S. dollar-denominated investment portfolio hedged back to yen and a portfolio of unhedged U.S. dollar-denominated assets. As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. invests in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loans. The Company is also a signatory to the Principles for Responsible Investment, a global framework for incorporating environmental, social and governance (ESG) considerations into investment and ownership decisions.

For additional information concerning the Company's investments, see Notes 3, 4, and 5 of the Notes to the Consolidated Financial Statements.

The following tables detail investments by segment.

Investment Securities by Segment
March 31, 2023
(In millions)Aflac JapanAflac U.S.Corporate and Other Total
Available for sale, fixed maturity securities,
   at fair value
$61,628 $12,661 $3,810 $78,099 
Held to maturity, fixed maturity securities,
   at amortized cost (1)
18,936 0 0 18,936 
Equity securities655 51 381 1,087 
Commercial mortgage and other loans:
Transitional real estate loans (1)
5,277 1,158 200 6,635 
Commercial mortgage loans (1)
1,134 624 0 1,758 
Middle market loans (1)
4,474 461 0 4,935 
Other investments:
Policy loans189 25 0 214 
Short-term investments (2)
1,334 172 1,055 2,561 
Limited partnerships2,034 222 176 2,432 
Other0 34 0 34 
Investment in affiliate (3)
0 119 (119)0 
     Total investments95,661 15,527 5,503 116,691 
Cash and cash equivalents1,517 701 1,591 3,809 
              Total investments and cash$97,178 $16,228 $7,094 $120,500 
(1) Net of allowance for credit losses
(2) Includes securities lending collateral
(3) For consolidated reporting, Aflac U.S.'s investment in Aflac Re is eliminated in Corporate and other

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December 31, 2022
(In millions)Aflac JapanAflac U.S.Corporate and Other Total
Available for sale, fixed maturity securities,
   at fair value
$61,615 $12,231 $1,895 $75,741 
Held to maturity, fixed maturity securities,
   at amortized cost (1)
19,056 19,056 
Equity securities650 51 390 1,091 
Commercial mortgage and other loans:
Transitional real estate loans (1)
5,133 1,140 182 6,455 
Commercial mortgage loans (1)
1,269 729 15 2,013 
Middle market loans (1)
4,557 471 5,028 
Other investments:
Policy loans190 24 214 
Short-term investments (2)
319 184 1,029 1,532 
Limited partnerships1,900 208 182 2,290 
Other34 34 
Investment in affiliate (3)
195 (195)
     Total investments94,689 15,267 3,498 113,454 
Cash and cash equivalents1,601 720 1,622 3,943 
              Total investments and cash$96,290 $15,987 $5,120 $117,397 
(1) Net of allowance for credit losses
(2) Includes securities lending collateral
(3) For consolidated reporting, Aflac U.S.'s investment in Aflac Re is eliminated in Corporate and other

The ratings of the Company's securities referenced in the table below are based on the ratings designations provided by major rating organizations such as Moody's, Standard & Poor's and Fitch or, if not rated, are determined based on the Company's internal analysis of such securities. When the ratings issued by the rating agencies differ, the Company utilizes the second lowest rating when three or more rating agency ratings are available or the lowest rating when only two rating agency ratings are available.

The distributions of fixed maturity securities the Company owns, by credit rating, were as follows:

Composition of Fixed Maturity Securities by Credit Rating
 March 31, 2023December 31, 2022
 Amortized
Cost
  Fair    
  Value    
Amortized
Cost
  Fair    
  Value    
AAA1.7 %1.6 %1.6 %1.5 %
AA5.3 5.4 5.2 5.3 
A67.9 68.0 68.0 68.1 
BBB23.0 22.8 23.0 22.9 
BB or lower2.1 2.2 2.2 2.2 
Total100.0 %100.0 %100.0 %100.0 %

As of March 31, 2023, the Company's direct and indirect exposure to securities in its investment portfolio that were guaranteed by third parties was immaterial both individually and in the aggregate.

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The following table presents the 10 largest unrealized loss positions in the Company's portfolio as of March 31, 2023.
(In millions)Credit
Rating
Amortized
Cost
Fair
Value
Unrealized Loss 
KLM Royal Dutch AirlinesB$136 $103 $(33)
GLP Pte Ltd.BBB112 80 (32)
Autostrade Per Litalia SpaBBB148 116 (32)
Prologis LPA171 141 (30)
JP Morgan Chase and Co.A200 171 (29)
Banco de ChileA150 122 (28)
Investcorp Capital LimitedBB327 306 (21)
Credit Suisse Group AGBBB75 55 (20)
Grand City Properties SABBB56 37 (19)
Urban Renaissance AgencyA183 164 (19)

Generally, declines in fair values can be a result of changes in interest rates, yen/dollar exchange rate, and changes in net spreads driven by a broad market move or a change in the issuer's underlying credit quality. The Company believes these issuers have the ability to continue making timely payments of principal and interest. See the Unrealized Investment Gains and Losses section in Note 3 of the Notes to the Consolidated Financial Statements for further discussions of unrealized losses related to financial institutions and other corporate investments.

Below-Investment-Grade Securities

The Company's portfolio of below-investment-grade securities includes debt securities purchased while the issuer was rated investment grade plus other loans and bonds purchased as part of an allocation to that segment of the market. The following is the Company's below-investment-grade exposure.

Below-Investment-Grade Investments
March 31, 2023
(In millions)Par
Value
Amortized
Cost
(1)
Fair
Value
Unrealized
Gain
(Loss)
Investcorp Capital Limited$327 $327 $306 $(21)
Pemex Project Funding Master Trust225 225 228 3 
Commerzbank187 145 205 60 
Telecom Italia SpA150 150 183 33 
KLM Royal Dutch Airlines150 136 103 (33)
Apache Corporation138 110 130 20 
Howmet Aerospace Inc.100 70 101 31 
IKB Deutsche Industriebank AG97 48 77 29 
Generalitat de Catalunya60 25 60 35 
National Gas Co. Trinidad & Tobago52 50 46 (4)
Other Issuers63 64 51 (13)
          Subtotal (2)
1,549 1,350 1,490 140 
High yield corporate bonds736 622 668 46 
Middle market loans4,642 4,454 4,456 2 
          Grand Total$6,927 $6,426 $6,614 $188 
(1) Net of allowance for credit losses
(2) Securities initially purchased as investment grade, but have subsequently been downgraded to below investment grade

The Company invests in middle market loans primarily to U.S. corporate borrowers, most of which have below-investment-grade ratings. The objectives of this program include enhancing the yield on invested assets, achieving further diversification of credit risk, and mitigating the risk of rising interest rates and hedge costs through the acquisition of floating rate assets.

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The Company maintains an allocation to higher yielding corporate bonds within the Aflac Japan and Aflac U.S. portfolios. Most of these securities were rated below-investment-grade at the time of purchase, but the Company also purchased several that were rated investment grade which, because of market pricing, offer yields commensurate with below-investment-grade risk profiles. The objective of this allocation was to enhance the Company's yield on invested assets and further diversify credit risk. All investments in this program must have a minimum rating at purchase of low BB using the Company's above described rating methodology and are managed by the Company's internal credit portfolio management team.

Fixed Maturity Securities by Sector

The Company maintains diversification in investments by sector to avoid concentrations to any one sector, thus managing exposure risk. The following table shows the distribution of fixed maturities by sector classification.
March 31, 2023
(In millions)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value% of
Total
Government and agencies$43,595 $4,082 $(1,084)$46,593 46.3 %
Municipalities2,593 261 (97)2,757 2.8 
Mortgage- and asset-backed securities2,545 99 (77)2,567 2.7 
Public utilities7,495 671 (191)7,975 7.9 
Electric6,074 551 (134)6,489 6.4 
Natural Gas844 69 (32)882 .9 
Other577 51 (25)604 .6 
Sovereign and supranational1,118 134 (14)1,238 1.2 
Banks/financial institutions9,279 653 (512)9,420 9.8 
Banking5,571 455 (295)5,732 5.9 
Insurance1,716 143 (67)1,791 1.8 
Other1,992 55 (150)1,897 2.1 
Other corporate27,617 2,655 (1,107)29,165 29.3 
Basic Industry2,444 307 (83)2,669 2.6 
Capital Goods3,275 231 (147)3,359 3.5 
Communications2,906 375 (66)3,214 3.1 
Consumer Cyclical2,136 219 (50)2,305 2.3 
Consumer Non-Cyclical6,148 522 (240)6,429 6.5 
Energy2,556 359 (60)2,855 2.7 
Other1,343 95 (113)1,325 1.4 
Technology3,701 185 (171)3,716 3.9 
Transportation3,108 362 (177)3,293 3.3 
        Total fixed maturity securities$94,242 $8,555 $(3,082)$99,715 100.0 %
(1) Net of allowance for credit losses

Securities by Type of Issuance

The Company has investments in both publicly and privately issued securities. The Company's ability to sell either type of security is a function of overall market liquidity which is impacted by, among other things, the amount of outstanding securities of a particular issuer or issuance, trading history of the issue or issuer, overall market conditions, and idiosyncratic events affecting the specific issue or issuer.

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The following table details investment securities by type of issuance.

Investment Securities by Type of Issuance
  
March 31, 2023December 31, 2022
(In millions)
Amortized
Cost
(1)
Fair   
Value   
Amortized
Cost (1)
Fair  
Value  
Publicly issued securities:
Fixed maturity securities$76,825 $81,310 $77,176 $79,090 
Equity securities866 866 882 882 
      Total publicly issued77,691 82,176 78,058 79,972 
Privately issued securities: (2)
Fixed maturity securities (3)
17,417 18,405 17,349 17,861 
Equity securities221 221 209 209 
      Total privately issued17,638 18,626 17,558 18,070 
      Total investment securities$95,329 $100,802 $95,616 $98,042 
(1) Net of allowance for credit losses
(2) Primarily consists of securities owned by Aflac Japan
(3) Excludes Rule 144A securities

The following table details the Company's reverse-dual currency securities.

Reverse-Dual Currency Securities(1)
(Amortized cost, in millions)March 31,
2023
December 31,
2022
Privately issued reverse-dual currency securities$4,028 $4,049 
Publicly issued collateral structured as reverse-dual currency securities1,374 1,383 
Total reverse-dual currency securities$5,402 $5,432 
Reverse-dual currency securities as a percentage of total investment
   securities
5.7 %5.7 %
(1) Principal payments in yen and interest payments in dollars

Aflac Japan has a portfolio of privately issued securities to better match liability characteristics and secure higher yields than those available on Japanese government or other public corporate bonds.Aflac Japan’s investments in yen-denominated privately issued securities consist primarily of non-Japanese issuers, are rated investment grade at purchase and have longer maturities, thereby allowing the Company to improve asset/liability matching and overall investment returns. These securities are generally either privately negotiated arrangements or issued under medium-term note programs and have standard documentation commensurate with credit ratings of the issuer, except when internal credit analysis indicates that additional protective and/or event-risk covenants were required. Many of these investments have protective covenants appropriate to the specific investment. These may include a prohibition of certain activities by the borrower, maintenance of certain financial measures, and specific conditions impacting the payment of the Company's notes.

HEDGING ACTIVITIES

The Company uses derivative contracts to hedge foreign currency exchange rate risk and interest rate risk. The Company uses various strategies, including derivatives, to manage these risks. See Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the 2022 Annual Report for more information about market risk and the Company’s use of derivatives.

Derivatives are designed to reduce risk on an economic basis while minimizing the impact on financial results. The Company’s derivatives programs vary depending on the type of risk being hedged. See Note 4 of the Notes to the Consolidated Financial Statements for:

A description of the Company's derivatives, hedging strategies and underlying risk exposure.
Information about the notional amount and fair market value of the Company's derivatives.
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The unrealized and realized gains and losses impact on adjusted earnings of derivatives in cash flow, fair value, net investments in foreign operations, or non-qualifying hedging relationships.

Foreign Currency Exchange Rate Risk Hedge Program
The Company has deployed the following hedging strategies to mitigate exposure to foreign currency exchange rate risk:

Aflac Japan hedges U.S. dollar-denominated investments back to yen (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

Aflac Japan maintains certain unhedged U.S. dollar-denominated securities, which serve as an economic currency hedge of a portion of the Company's investment in Aflac Japan (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

The Parent Company designates yen-denominated liabilities (notes payable and loans) as non-derivative hedging instruments and designates certain foreign currency forwards and options as derivative hedges of the Company’s net investment in Aflac Japan (see Enterprise Corporate Hedging Program below).

The Parent Company enters into forward and option contracts to accomplish a dual objective of hedging foreign currency exchange rate risk related to dividend payments by its subsidiary, ALIJ, and reducing enterprise-wide hedge costs (see Enterprise Corporate Hedging Program below).


The following table presents metrics related to Aflac Japan's U.S. dollar-denominated hedge program and the Parent Company's enterprise corporate hedging program, including associated amortized hedge costs/income, for the periods ended March 31. See the Results of Operations section of this MD&A for the Company's definition of amortized hedge costs/income.
Three Months
20232022
Aflac Japan:
FX Forwards
   FX forward (sell USD, buy yen) notional at end of period (in billions) (1)
$3.7$4.5
   Weighted average remaining tenor (in months) (2)
9.89.9
   Amortized hedge income (cost) for period (in millions)$(39)$(13)
FX Options
FX option notional at the end of period (in billions) (1)
$13.5$13.5
Weighted average remaining tenor (in months) (2)
7.46.6
Amortized hedge income (cost) for period (in millions)$(19)$(13)
Corporate and other (Parent Company):
FX Forwards
   FX forward (buy USD, sell yen) notional at end of period (in billions) (1)
$5.0$5.0
   Weighted average remaining tenor (in months) (2)
10.410.9
   Amortized hedge income (cost) for period (in millions)$31$12
FX Options
FX option notional at the end of period (in billions) (1)
$2.2$1.9
Weighted average remaining tenor (in months) (2)
7.47.6
Amortized hedge income (cost) for period (in millions)$(2)$(1)
(1) Notional is reported net of any offsetting positions within Aflac Japan or the Parent Company, respectively.
(2) Tenor based on period reporting date to settlement date

Amortized hedge costs/income can fluctuate based upon many factors, including the derivative notional amount, the length of time of the derivative contract, changes in both U.S. and Japan interest rates, and supply and demand for dollar funding. Amortized hedge costs/income have fluctuated in recent periods due to changes in the previously mentioned factors.

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Aflac Japan’s U.S. Dollar-Denominated Hedge Program (U.S. Dollar Program)

Aflac Japan buys U.S. dollar-denominated investments, typically corporate bonds, and hedges them back to yen with foreign currency forwards and options to hedge foreign currency exchange rate risk. This economically creates yen assets that match yen liabilities during the life of the derivative and provides favorable capital treatment under the Japan solvency margin ratio (SMR) calculations. The currency risk being hedged is generally based on fair value of hedged investments. The following table summarizes the U.S. dollar-denominated investments held by Aflac Japan.
March 31,
2023
December 31,
2022
(In millions)
Amortized
Cost
(1)
Fair
Value
Amortized
Cost (1)
Fair
Value
Available-for-sale securities:
  Fixed maturity securities$12,817 $14,176 $14,321 $15,191 
Equity securities33 33 33 33 
Commercial mortgage and other loans:
  Transitional real estate loans (floating rate)5,277 5,207 5,133 5,088 
  Commercial mortgage and other loans1,134 1,013 1,269 1,129 
  Middle market loans (floating rate)4,474 4,468 4,557 4,545 
Other investments2,033 2,033 1,899 1,899 
      Total U.S. Dollar Program25,768 26,930 27,212 27,885 
Available-for-sale securities:
  Fixed maturity securities - economically converted to yen2,236 2,928 2,209 2,795 
      Total U.S. dollar-denominated investments in Aflac Japan$28,004 $29,858 $29,421 $30,680 
(1) Net of allowance for credit losses

The U.S. Dollar Program includes all U.S. dollar-denominated investments in Aflac Japan other than the investments in certain consolidated VIEs where the instrument is economically converted to yen as a result of a derivative in the consolidated VIE. The Company uses one-sided foreign currency put options to mitigate the settlement risk on U.S. dollar-denominated assets related to extreme foreign currency rate changes. From time to time, Aflac Japan also maintains a collar program on a portion of its U.S. Dollar Program to mitigate against more extreme moves in foreign exchange and therefore support SMR. As of March 31, 2023, there were no collars in Aflac Japan, and none of the Company's foreign currency options hedging Aflac Japan's U.S. dollar-denominated assets were in-the-money.

As of March 31, 2023, the fair value of Aflac Japan's unhedged U.S. dollar-denominated portfolio was $9.7 billion (excluding certain U.S. dollar-denominated assets shown in the table above as a result of consolidation that have been economically converted to yen using derivatives).

Foreign exchange derivatives used for hedging are periodically settled, which results in cash receipt or payment at maturity or early termination. The following table presents the settlements associated with the Company's currency derivatives used for hedging Aflac Japan’s U.S. dollar-denominated investments.
Three Months Ended March 31,
(In millions)20232022
Net cash inflows (outflows)$(579)$(619)

Enterprise Corporate Hedging Program

The Company has designated certain yen-denominated liabilities and foreign currency forwards and options of the Parent Company as accounting hedges of its net investment in Aflac Japan. The Company's consolidated yen-denominated net asset position was partially hedged at $11.1 billion as of March 31, 2023, with hedging instruments comprised of $3.9 billion of yen-denominated debt and $7.2 billion of foreign currency forwards and options, compared with $11.6 billion as of December 31, 2022, with hedging instruments comprised of $4.0 billion of yen-denominated debt and $7.6 billion of foreign currency forwards and options.

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The Company makes its accounting designation of net investment hedge at the beginning of each quarter. If the total of the designated Parent Company non-derivative and derivative notional is equal to or less than the Company's net investment in Aflac Japan, the hedge is deemed to be effective, and the currency exchange effect on the yen-denominated liabilities and the change in estimated fair value of the derivatives are reported in the unrealized foreign currency component of other comprehensive income. The Company's net investment hedge was effective during the three-month periods ended March 31, 2023 and 2022, respectively. For additional information on the Company's net investment hedging strategy, see Note 4 of the Notes to the Consolidated Financial Statements.

In order to economically mitigate risks associated with the enterprise-wide exposure to the yen and the level and volatility of hedge costs, the Parent Company enters into foreign exchange forward and option contracts. By buying U.S. dollars and selling yen, the Parent Company is effectively lowering its overall economic exposure to the yen, while Aflac Japan's U.S. dollar exposure remains reduced as a result of Aflac Japan's U.S. Dollar Program that economically creates yen assets. Among other objectives, this strategy is intended to offset the enterprise-wide amortized hedge costs by generating amortized hedge income. This activity is reported in Corporate and other. The Company continually evaluates the program’s efficacy.

As part of the Company’s internal reinsurance platform, Aflac Re enters into foreign currency forwards with the Parent Company to economically manage the currency mismatch between Aflac Re's assets, which are mostly denominated in U.S. dollars, and liabilities, which are mostly denominated in yen, in order to support and optimize BMA capital requirements. For additional information on the Company's internal reinsurance platform, see Note 8 of the Notes to the Consolidated Financial Statements and the Liquidity and Capital Resources section of this MD&A.

Interest Rate Risk Hedge Program

Aflac Japan and Aflac U.S. use interest rate swaps from time to time to mitigate the risk of investment income volatility for certain variable-rate investments. Additionally, to manage interest rate risk associated with its U.S. dollar-denominated investments held by Aflac Japan, from time to time the Company utilizes interest rate swaptions.

For additional discussion of the risks associated with the foreign currency exposure refer to the Currency Risk section in Item 7A., Quantitative and Qualitative Disclosures about Market Risk, and Item 1A, specifically to the Risk Factors titled “The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and “Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity" in the 2022 Annual Report.

See Note 4 of the Notes to the Consolidated Financial Statements for additional information on the Company's hedging activities.

DEFERRED POLICY ACQUISITION COSTS
The following table presents deferred policy acquisition costs by segment.
(In millions)March 31,
2023
December 31, 2022% Change      
Aflac Japan$5,776 $5,776 .0 %(1)
Aflac U.S.3,491 3,463 .8 
Total$9,267 $9,239 .3 %
(In millions)September 30, 2017 December 31, 2016 % Change      
Aflac Japan $6,104
   $5,765
   5.9%
(1) 
Aflac U.S. 3,309
   3,228
   2.5
 
Total $9,413
   $8,993
   4.7% 
(1)Aflac Japan’s deferred policy acquisition costs increased 2.5%.6% in yen during the ninethree months ended September 30, 2017.March 31, 2023.

Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

See Note 6 of the Notes to the Consolidated Financial Statements in the 2016 Annual Report for additional information on the Company's deferred policy acquisition costs.


Policy Liabilities
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POLICY LIABILITIES
The following table presents policy liabilities by segment.
(In millions)March 31,
2023
December 31, 2022% Change      
Aflac Japan$88,944 $86,088 3.3 %(1)
Aflac U.S.11,542 11,187 3.2 
Corporate and other1,874 302 100.0 
Intercompany eliminations(2)
(2,427)(667)100.0 
Total$99,933 $96,910 3.1 %
(In millions)September 30, 2017 December 31, 2016 % Change      
Aflac Japan $88,829
   $84,141
   5.6%
(1) 
Aflac U.S. 10,503
   10,212
   2.8
 
Other 131
   91
   44.0
 
Intercompany eliminations(2)
 (750)   (718)   4.5
 
Total $98,713
   $93,726
   5.3% 
(1)Aflac Japan’s policy liabilities increased 2.2%4.0% in yen during the ninethree months ended September 30, 2017.March 31, 2023.
(2) Elimination entry necessary due to the internal reinsurance transaction with Aflac Re and to recapture of a portion of policy liabilities ceded externally as a result of the reinsurance retrocession transaction as described intransaction. See Note 78 of the Notes to the Consolidated Financial Statements.

Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.
Notes Payable

Notes payable totaled $5.2 billion at September 30, 2017, compared with $5.4 billion as at December 31, 2016.

In January 2017, the Parent Company issued 60.0 billion yen of senior notes through a public debt offering under its U.S. shelf registration statement. The notes bear interest at a fixed rate of .932% per annum, payable semi-annually, and have a 10-year maturity. These notes may only be redeemed before maturity, in whole but not in part, upon the occurrence of certain changes affecting U.S. taxation, as specified in the indenture governing the terms of the issuance.

In February 2017, the Parent Company extinguished $650 million of 2.65% senior notes upon their maturity.

Subsequent to September 30, 2017, in October 2017 the Parent Company issued 60.0 billion yen of subordinated debentures through a public debt offering under its U.S. shelf registration statement. The debentures have a 30-year maturity and bear interest at an initial rate of 2.108% per annum through October 22, 2027, or earlier redemption. Thereafter, the rate of the interest of the debentures will be reset every five years at a rate of interest equal to the then-current JPY 5-year Swap Offered Rate plus 205 basis points. The debentures are redeemable (i) at any time, in whole but not in part, upon the occurrence of certain tax events or certain rating agency events, as specified in the indenture governing the terms of the debentures or (ii) in 10 years, in whole or in part, at a redemption price equal to their principal amount plus accrued and unpaid interest. The Parent Company intends to use the proceeds from the October 2017 issuance of its debentures to redeem $500 million of its 5.50% subordinated debentures due 2052, and to use the remaining proceeds, if any, for general corporate purposes.



See Note 87 of the accompanying Notes to the Consolidated Financial Statements for additional information on the Company's notes payable.policy liabilities.


Benefit Plans
BENEFIT PLANS

Aflac Japan and Aflac U.S. have various benefit plans. For additional information on the Company's Japanese and U.S. plans, see Note 1112 of the accompanying Notes to the Consolidated Financial Statements and Note 14 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report.


Policyholder Protection

POLICYHOLDER PROTECTION

Policyholder Protection Corporation


The Japanese insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. Legislation enacted regarding the framework of the Life Insurance Policyholder Protection Corporation (LIPPC) included government fiscal measures supporting the LIPPC. OnIn March 30, 2012, the2022, Japan's Diet approvedpassed legislation to enhance the stability of the LIPPC by extendingthat extended the government's fiscal support of the LIPPC through March 2017. On November 25, 2016, Japan's Diet passed legislation that again extends the government's fiscal support of2027. In March 2022, the LIPPC through March 2022. Effective April 2014,reached the annual LIPPC contribution amountrequired balance for the total life industry of ¥400 billion as specified by its Articles of Incorporation. As a result, additional contributions are not expected to be required unless the balance is reduced due to payments made by the LIPPC to the policyholders of insolvent insurers. Accordingly, Aflac Japan did not recognize an expense for LIPPC assessments for the three-month period ended March 31, 2023. Aflac Japan recognized an expense for LIPPC assessments of ¥.9 billion for the three-month period ended March 31, 2022.

Guaranty Fund Assessments

Under U.S. state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business. The amount of the guaranty fund assessment that an insurer is assessed is based on its proportionate share of premiums in that state. Guaranty fund assessments for the three-month periods ended March 31, 2023 and 2022 were immaterial.

LIQUIDITY AND CAPITAL RESOURCES

Liquidity refers to the ability to generate sufficient cash resources to meet the payment obligations of the Company. Capital refers to the long-term financial resources available to support the operations of the businesses, fund business growth and provide for an ability to withstand adverse circumstances. Financial leverage (leverage) refers to an investment strategy of using debt to increase the potential ROE. The Company targets and actively manages liquidity, capital and leverage in the context of a number of considerations, including:

business investment and growth needs
strategic growth objectives
financial flexibility and obligations
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capital support for hedging activity
a constantly evolving business and economic environment
a balanced approach to capital allocation and shareholder deployment.

The governance framework supporting liquidity, capital and leverage includes global senior management and board committees that review and approve all significant capital related decisions.

The Company's cash and cash equivalents include unrestricted cash on hand, money market instruments, and other debt instruments with a maturity of 90 days or less when purchased, all of which have minimal market, settlement or other risk exposure. The target minimum amount for the Parent Company’s cash and cash equivalents is approximately $1.8 billion to provide a capital buffer and liquidity support at the holding company. The Company remains committed to prudent liquidity and capital management. At March 31, 2023, the Company held $3.8 billion in cash and cash equivalents for stress conditions, which includes the Parent Company's target minimum amount of $1.8 billion.

Aflac Japan and Aflac U.S. generate cash flows from their operations and provide the primary sources of liquidity to the Parent Company through management fees and dividends, with Aflac Japan being the largest contributor. The primary uses of cash by the Parent Company are shareholder dividends, the repurchase of its common stock, interest on its outstanding indebtedness and operating expenses.
The following table presents the amounts provided to the Parent Company for the three-month periods ended March 31.

Liquidity Provided by Subsidiaries to Parent Company
(In millions)20232022
Management fees paid by subsidiaries$38 $33 
Dividends declared or paid by subsidiaries780 514 

The following table details Aflac Japan remittances, which are included in the totals above, for the three-month periods ended March 31.
Aflac Japan Remittances
(In millions of dollars and billions of yen)20232022
Aflac Japan management fees paid to Parent Company$16 $15 
Aflac Japan dividends declared or paid to Parent Company (in dollars)505 339 
Aflac Japan dividends declared or paid to Parent Company (in yen)¥67.3 ¥41.1 

The Company intends to maintain higher than historical levels of liquidity and capital at the Parent Company for stress conditions and with the goals of addressing the Company’s hedge costs and related potential need for collateral and mitigating against long-term weakening of the Japanese yen. Further, the Company plans to continue to maintain a portfolio of unhedged U.S. dollar-denominated investments at Aflac Japan and to consider whether the amount of such investments should be increased or decreased relative to the Company’s view of economic equity surplus in Aflac Japan in light of potentially rising hedge costs and other factors. See the Hedging Activity subsection of this MD&A for more information.

The Company believes that its balance of cash and cash equivalents and cash generated by operations will be sufficient to satisfy both its short-term and long-term cash requirements and plans for cash, including material cash requirements from known contractual obligations and returning capital to shareholders through share repurchases and dividends. For additional information, see the Liquidity and Capital Resources section of Item 7. MD&A in the 2022 Annual Report.

In addition to cash and cash equivalents, the Company also maintains credit facilities, both intercompany and with external partners, and a number of other available tools to support liquidity needs on a global basis. In September 2021, the Parent Company filed a shelf registration statement with the SEC that allows the Company to issue an indefinite amount of debt securities, in one or more series, from time to time until September 2024. The Company believes outside sources for additional debt and equity capital, if needed, will continue to be available. Additionally, as of March 31, 2023, the Parent Company and Aflac had four lines of credit with third parties and twelve intercompany lines of credit. The Company was loweredin compliance with all of the covenants of its notes payable and lines of credit at March 31, 2023. For additional information, see Note 9 of the Notes to the Consolidated Financial Statements.

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As part of enterprise-wide capital management and optimization, the Company also utilizes the newly-created intercompany reinsurance platform to execute internal reinsurance transactions with Aflac Re. For additional information, see Note 8 of the Notes to the Consolidated Financial Statements.

The Company's consolidated financial statements convey its financing arrangements during the periods presented. The Company has not engaged in material intra-period short-term financings during the periods presented that are not otherwise reported in its balance sheet or disclosed therein. As of March 31, 2023, the Company had no material letters of credit, standby letters of credit, guarantees or standby repurchase obligations. The Company has not entered into transactions involving the transfer of financial assets with an obligation to repurchase financial assets that have been accounted for as a sale under applicable accounting standards, including securities lending transactions. See Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3, and 4 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for more information on the Company's securities lending and derivative activities. See Note 15 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for information on material unconditional purchase obligations that are not recorded on the Company's balance sheet. With the exception of disclosed activities in those referenced footnotes and the Risk Factors in the 2022 Annual Report entitled, "The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and "Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity," the Company is not aware of any trend, demand, commitment, event or uncertainty that would reasonably result in its liquidity increasing or decreasing by a material amount.
Consolidated Cash Flows

The Company consistently generates positive cash flows from 40operations, and has the ability to adjust cash flow management from other sources of liquidity including reinvestment cash flows and selling investments in order to meet short-term cash needs.

The Company translates cash flows for Aflac Japan’s yen-denominated items into U.S. dollars using weighted-average exchange rates. In periods when the yen weakens, translating yen into dollars causes fewer dollars to be reported. When the yen strengthens, translating yen into dollars causes more dollars to be reported.

The following table summarizes consolidated cash flows by activity for the three-month periods ended March 31.
(In millions)20232022
Operating activities$708 $1,260 
Investing activities105 (1,210)
Financing activities(933)(737)
Exchange effect on cash and cash equivalents(14)(89)
Net change in cash and cash equivalents$(134)$(776)

Operating Activities

The principal cash inflows for the Company's insurance activities come from insurance premiums and investment income. The principal cash outflows are the result of policy claims, operating expenses, income tax, as well as interest expense. As a result of policyholder aging, claims payments are expected to gradually increase over the life of a policy. Therefore, future policy benefit reserves are accumulated in the early years of a policy and are designed to help fund future claims payments.

The Company expects its future cash flows from premiums and investment portfolios to be sufficient to meet its cash needs for benefits and expenses.

Investing Activities

The Company's investment objectives provide for liquidity primarily through the purchase of publicly traded investment-grade debt securities. Prudent portfolio management dictates that the Company attempts to match the duration of its assets with the duration of its liabilities. Currently, when the Company's fixed maturity securities mature, the proceeds may be reinvested at a yield below that required for the accretion of policy benefit liabilities on policies issued in earlier years. However, the long-term nature of the Company's business and its strong cash flows provide the Company with the ability to minimize the effect of mismatched durations and/or yields identified by various asset adequacy analyses. From time to time or when market opportunities arise, the Company disposes of selected fixed maturity securities that are available for
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sale to improve the duration matching of assets and liabilities, improve future investment yields, and/or re-balance its portfolio. As a result, dispositions before maturity can vary significantly from year to year.

As part of its overall corporate strategy, the Company has committed $400 million to Aflac Ventures, LLC (Aflac Ventures), as opportunities emerge. Aflac Ventures is a subsidiary of Aflac Global Ventures, LLC (Aflac Global Ventures) which is reported in Corporate and other. The central mission of Aflac Global Ventures is to support the organic growth and business development needs of Aflac Japan and Aflac U.S. with an emphasis on digital applications designed to improve the customer experience, gain efficiencies, and develop new markets in an effort to enhance and defend long-term shareholder value. Investments are included in equity securities or the other investments line in the consolidated balance sheets.

As part of an arrangement with Federal Home Loan Bank of Atlanta (FHLB), Aflac U.S. obtains low-cost funding from FHLB supported by acceptable forms of collateral pledged by Aflac U.S. In the first three months of 2023, Aflac U.S. borrowed and repaid $37 million under this program. As of March 31, 2023, Aflac U.S. had outstanding borrowings of $591 million reported in its balance sheet.

See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.

Financing Activities

Cash flows from financing activities consist primarily of share repurchases, dividends to shareholders and from time to time debt issuances and redemptions.

Cash returned to shareholders through treasury stock purchases and dividends was $948 million during the three-month period ended March 31, 2023, compared with $750 million during the three-month period ended March 31, 2022.

The following tables present a summary of treasury stock activity during the three-month periods ended March 31.

Treasury Stock Purchased
(In millions of dollars and thousands of shares)20232022
Treasury stock purchases$700 $500 
Number of shares purchased:
Share repurchase program10,348 8,007 
Other347 343 
   Total shares purchased10,695 8,350 

Treasury Stock Issued
(In millions of dollars and thousands of shares)20232022
Stock issued from treasury:
   Cash financing$2 $
   Noncash financing18 17 
   Total stock issued from treasury$20 $26 
Number of shares issued458 526 

As of March 31, 2023, a remaining balance of 106.3 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors.

Cash dividends paid to shareholders were $.42 per share in the first quarter of 2023, compared with $.40 per share in the first quarter of 2022. The following table presents the dividend activity for the three-month periods ended March 31.

(In millions)20232022
Dividends paid in cash$248 $250 
Dividends through issuance of treasury shares9 
Total dividends to shareholders$257 $259 
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In April 2023, the board of directors declared the second quarter cash dividend of $.42 per share, an increase of 5.0% compared with the same period in 2022. The dividend is payable on June 1, 2023 to shareholders of record at the close of business on May 17, 2023.

Regulatory Restrictions

Aflac Japan

Aflac Japan is required to meet certain financial criteria as governed by Japanese corporate law in order to provide dividends to the Parent Company. Under these criteria, dividend capacity at the Japan subsidiary is basically defined as total equity excluding common stock and capital reserves (representing statutorily required amounts in Japan) but reduced for net after-tax unrealized losses on available-for-sale securities. These dividend capacity requirements are generally aligned with the SMR. Japan's Financial Services Agency (FSA) maintains its own solvency standard which is quantified through the SMR. Aflac Japan's SMR is sensitive to interest rate, credit spread, and foreign exchange rate changes; therefore, the Company continues to evaluate alternatives for reducing this sensitivity, including the reduction of subsidiary dividends paid to the Parent Company and Parent Company capital contributions. In the event of a rapid change in market risk conditions causing SMR to decline, the Company has one senior unsecured revolving credit facility in the amount of ¥100 billion yenand a committed reinsurance facility in the amount of approximately ¥120 billion as a capital contingency plan. Additionally, subject to 33market conditions, the Company expects that it could take action to enter into derivatives on unhedged U.S. dollar-denominated investments with foreign currency options or forwards or execute additional internal reinsurance transactions with Aflac Re. See Notes 8 and 9 of the Notes to the Consolidated Financial Statements for additional information.

The Company has already undertaken various measures to mitigate the sensitivity of Aflac Japan's SMR. For example, the Company employs policy reserve matching (PRM) investment strategies, which is a Japan-specific accounting treatment that reduces SMR interest rate sensitivity since PRM-designated investments are carried at amortized cost consistent with corresponding liabilities. In order for a PRM-designated asset to be held at amortized cost, there are certain criteria that must be maintained. The primary criterion relates to maintaining the duration of designated assets and liabilities within a specified tolerance range. If the duration difference is not maintained within the specified range without rebalancing, then a certain portion of the assets must be re-classified as available for sale and held at fair value with any associated unrealized gain or loss recorded in surplus. To rebalance, assets may need to be sold in order to maintain the duration with the specified range, resulting in realizing a gain or loss from the sale. For U.S. GAAP, PRM investments are categorized as available for sale. The Company also uses foreign currency derivatives to hedge a portion of its U.S. dollar-denominated investments. See Notes 3, 4 and 8 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for additional information on the Company's investment strategies, hedging activities, and reinsurance, respectively.

As of March 31, 2023, Aflac Japan's SMR remains high and reflects a strong capital and surplus position. The Company is committed to maintaining strong capital levels, consistent with maintaining current insurance financial strength and credit ratings.

The FSA is considering the introduction of an economic value-based solvency regime based on the Insurance Capital Standards (ICS) for insurance companies in Japan. The FSA continues to conduct field testing with insurance companies in Japan for the purpose of investigating the impact of the introduction of such regulations. Final specifications are expected to be decided in 2024, and a new capital regime to replace the current solvency regime is expected to be introduced in 2025.

Aflac U.S.

A life insurance company’s statutory capital and surplus is determined according to rules prescribed by the National Association of Insurance Commissioners (NAIC), as modified by the insurance department in the insurance company’s state of domicile. Statutory accounting rules are different from U.S. GAAP and are intended to emphasize policyholder protection and company solvency. The continued long-term growth of the Company's business may require increases in the statutory capital and surplus of its insurance operations. The Company's insurance operations may secure additional statutory capital through various sources, such as internally generated statutory earnings, reduced dividends paid to the Parent Company, capital contributions by the Parent Company from funds generated through debt or equity offerings, or reinsurance transactions. The NAIC’s Risk-based capital (RBC) formula is used by insurance regulators to help identify inadequately capitalized insurance companies. The RBC formula quantifies insurance risk, business risk, asset risk and
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interest rate risk by weighing the types and mixtures of risks inherent in the insurer’s operations. As of March 31, 2023, Aflac U.S.'s combined RBC ratio remains high and reflects a strong capital and surplus position.

Aflac, CAIC and TOIC are domiciled in Nebraska and are subject to its regulations. The maximum amount of dividends that can be paid to the Parent Company by Aflac, CAIC and TOIC without prior approval of Nebraska's director of insurance is the greater of the net income from operations, which excludes net investment gains, for the previous year determined under statutory accounting principles, or 10% of statutory capital and surplus as of the previous year-end. Dividends declared by Aflac during 2023 in excess of $1.1 billion yen.would be considered extraordinary and require such approval. Similar laws apply in New York, the domiciliary jurisdiction of Aflac New York.


Privacy and Cybersecurity Governance

The Company’s Board of Directors has adopted an information security policy directing management to establish and operate a global information security program with the goals of monitoring existing and emerging threats and ensuring that the Company’s information assets and data, and the data of its customers, are appropriately protected from loss or theft. The Board has delegated oversight of the Company’s information security program to the Audit and Risk Committee. The Company’s senior officers, including its Global Chief Information Security Officer, are responsible for the operation of the global information security program and communicate quarterly with the Audit and Risk Committee on the program, including with respect to the state of the program, compliance with applicable regulations, current and evolving threats, and recommendations for changes in the information security program. The global information security program also includes a cybersecurity incident response plan that is designed to provide a management framework across Company functions for a coordinated assessment and response to potential security incidents. This framework establishes a protocol to report certain incidents to the Global Chief Information Security Officer and other senior officers, with the goal of timely assessing such incidents, determining applicable disclosure requirements and communicating with the Audit and Risk Committee. The incident response plan directs the executive officers to report certain incidents immediately and directly to the Lead Non-Management Director.

Other

For information regarding commitments and contingent liabilities, see Note 13 of the Notes to the Consolidated Financial Statements.
Additional Information

Investors should note that the Company announces material financial information in its SEC filings, press releases and public conference calls. In accordance with SEC guidance, the Company may also use the Investor Relations section of the Company's website (http://investors.aflac.com) to communicate with investors about the Company. It is possible that the financial and other information the Company posts there could be deemed to be material information. The information on the Company's website is not part of this document. Further, the Company's references to website URLs are intended to be inactive textual references only.

CRITICAL ACCOUNTING ESTIMATES

The Company prepares its financial statements in accordance with U.S. GAAP. These principles are established primarily by the Financial Accounting Standards Board (FASB). In this MD&A, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards Codification (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The estimates that the Company deems to be most critical to an understanding of its results of operations and financial condition are those related to the valuation of investments and derivatives, DAC, liabilities for future policy benefits, and income taxes. The preparation and evaluation of these critical accounting estimates involve the use of various assumptions developed from management’s analyses and judgments. Calculations of DAC and the liability for future policy benefits require the use of estimates based on actuarial valuation techniques. The application of these critical accounting estimates determines the values at which 93% of the Company's assets and 80% of its liabilities are reported as of March 31, 2023, and thus has a direct effect on net earnings and shareholders’ equity. Subsequent experience or use of other assumptions could produce significantly different results.

On January 1, 2023, the Company adopted Accounting Standards Update (ASU) 2018-12, Financial Services - Insurance: Targeted Improvements to the Accounting for Long-Duration Contracts (LDTI). The update significantly changes how insurers account for long-duration contracts and amends existing recognition, measurement, presentation, and disclosure requirements applicable to the Company related to liabilities for future policy benefits and DAC. As part of this adoption,
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the Company measures together all payments under an insurance contract including future expected claims and unpaid policy claims and related expenses, as an integrated reserve. This resulted in unpaid policy claims on long-duration insurance contracts and accrued claim adjustment expenses that were presented separately in the Company’s consolidated balance sheet pre-adoption to now be presented as part of liabilities for future policy benefits.

For additional information, see Note 1 of the Notes to the Consolidated Financial Statements in this document and in the 2022 Annual Report.

Guaranty Fund Assessments


The U.S. insurance industry has a policyholder protection system that is monitored and regulated by state insurance departments. These life and health insurance guaranty associations are state entities (in all 50 states as well as Puerto Rico and the District of Columbia) created to protect policyholders of an insolvent insurance company. All insurance companies (with limited exceptions) licensed to sell life or health insurance in a state must be members of that state’s guaranty association. Under state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business.

Guaranty fund assessments for the three-month periods ended March 31, 2023 and 2022 were immaterial.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A)
FORWARD-LOOKING INFORMATION
The Private Securities Litigation Reform Act of 1995 provides a safe harbor to encourage companies to provide prospective information, so long as those informational statements are identified as forward-looking and are accompanied by meaningful cautionary statements identifying important factors that could cause actual results to differ materially from those included in the forward-looking statements. Aflac Incorporated (the Parent Company) and its subsidiaries (collectively with the Parent Company, the Company) desire to take advantage of these provisions. This report contains cautionary statements identifying important factors that could cause actual results to differ materially from those projected herein, and in any other statements made by Company officials in communications with the financial community and contained in documents filed with the Securities and Exchange Commission (SEC). Forward-looking statements are not based on historical information and relate to future operations, strategies, financial results or other developments. Furthermore, forward-looking information is subject to numerous assumptions, risks and uncertainties. In particular, statements containing words such as the ones listed below or similar words, as well as specific projections of future results, generally qualify as forward-looking. The Company undertakes no obligation to update such forward-looking statements.
• expect• anticipate• believe• goal• objective
• may• should• estimate• intends• projects
• will• assumes• potential• target• outlook
The Company cautions readers that the following factors, in addition to other factors mentioned from time to time, could cause actual results to differ materially from those contemplated by the forward-looking statements:
difficult conditions in global capital markets and the economy, including inflation and the continued effects caused by COVID-19
defaults and credit downgrades of investments
global fluctuations in interest rates and exposure to significant interest rate risk
concentration of business in Japan
limited availability of acceptable yen-denominated investments
foreign currency fluctuations in the yen/dollar exchange rate
differing interpretations applied to investment valuations
significant valuation judgments in determination of expected credit losses recorded on the Company's investments
decreases in the Company's financial strength or debt ratings
decline in creditworthiness of other financial institutions
concentration of the Company's investments in any particular single-issuer or sector
major public health issues, including COVID-19 and any resulting or coincidental economic effects, on the Company's business and financial results
the Company's ability to attract and retain qualified sales associates, brokers, employees, and distribution partners
deviations in actual experience from pricing and reserving assumptions
ability to continue to develop and implement improvements in information technology systems and on successful execution of revenue growth and expense management initiatives
interruption in telecommunication, information technology and other operational systems, or a failure to maintain the security, confidentiality or privacy of sensitive data residing on such systems
subsidiaries' ability to pay dividends to the Parent Company
inherent limitations to risk management policies and procedures
operational risks of third party vendors
tax rates applicable to the Company may change
failure to comply with restrictions on policyholder privacy and information security
extensive regulation and changes in law or regulation by governmental authorities
competitive environment and ability to anticipate and respond to market trends
catastrophic events, including, but not limited to, as a result of climate change, epidemics, pandemics (such as COVID-19), tornadoes, hurricanes, earthquakes, tsunamis, war or other military action, terrorism or other acts of violence, and damage incidental to such events
ability to protect the Aflac brand and the Company's reputation
ability to effectively manage key executive succession
changes in accounting standards
level and outcome of litigation
allegations or determinations of worker misclassification in the United States
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MD&A OVERVIEW
MD&A is intended to inform the reader about matters affecting the financial condition and results of operations of Aflac Incorporated and its subsidiaries for the three-month periods ended March 31, 2023 and 2022, respectively. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, the following discussion should be read in conjunction with the consolidated financial statements and notes that are included in the Company's annual report on Form 10-K for the year ended December 31, 2022 (2022 Annual Report). In this MD&A, amounts may not foot due to rounding.

This MD&A is divided into the following sections:

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EXECUTIVE SUMMARY
Company Overview
Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) provide financial protection to millions of policyholders and customers in Japan and the U.S. The Company’s principal business is supplemental health and life insurance products with the goal to provide customers the best value in supplemental insurance products in the United States (U.S.) and Japan. The Company's insurance business consists of two reporting segments: Aflac Japan and Aflac U.S. The Parent Company’s primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. in Japan (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Aflac Benefits Solutions, Inc. (ABS), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.). The Parent Company, other operating business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other.
In 2022, the Company established Aflac Re Bermuda Ltd. (Aflac Re), a Bermuda domiciled insurer that reinsures certain policies issued by ALIJ. Aflac Re is subject to regulation in Bermuda, where the Bermuda Monetary Authority (BMA) has broad administrative powers relating to granting and revoking licenses to transact reinsurance business, approval of specific reinsurance transactions, capital requirements and solvency standards, limitations on dividends to shareholders, the nature of and limitations on investments, and the filing of financial statements in accordance with prescribed or permitted accounting practices. Financial results from Aflac Re are included in Corporate and other.
Performance Highlights
Total revenues were $4.8 billion in the first three months of 2023, compared with $5.2 billion in the first three months of 2022. Net earnings were $1.2 billion, or $1.94 per diluted share in the first three months of 2023, compared with $1.0 billion, or $1.60 per diluted share, in the first three months of 2022.
Results in the first quarter of 2023 included pretax net investment gains of $123 million, compared with pretax net investment gains of $122 million in the first three months of 2022. Net investment gains in the first three months of 2023 included an increase in credit loss allowances of $30 million; $99 million of net gains from certain derivative and foreign currency gains or losses; $3 million of net losses on equity securities; and $57 million of net gains from sales and redemptions.
The average yen/dollar exchange rate(1) for the three-month period ended March 31, 2023 was 132.30, or 12.2% weaker than the average yen/dollar exchange rate(1) of 116.18 for the same period in 2022.
Adjusted earnings(2) in the first quarter of 2023 were $1.0 billion, or $1.55 per diluted share, compared with $942 million, or $1.44 per diluted share, in the first quarter of 2022. The weaker yen/dollar exchange rate negatively impacted adjusted earnings per diluted share by $.07.
Total investments and cash at March 31, 2023 were $120.5 billion, compared with $117.4 billion at December 31, 2022. In the first quarter of 2023, Aflac Incorporated repurchased $700 million, or 10.3 million of its common shares. At March 31, 2023, the Company had 106.3 million remaining shares authorized for repurchase.
Shareholders’ equity was $19.8 billion, or $32.65 per share, at March 31, 2023, compared with $20.1 billion, or $32.73 per share, at December 31, 2022. Shareholders’ equity at March 31, 2023 included a cumulative decrease of $4.9 billion from the effect of changes in discount rate assumptions on insurance contracts, driven by the adoption of the new accounting guidance for long-duration insurance contracts, compared with a corresponding cumulative decrease of $2.1 billion at December 31, 2022, and a net unrealized gain on investment securities and derivatives of $1.3 billion, compared with a net unrealized loss of $729 million at December 31, 2022. Shareholders’ equity at March 31, 2023 also included an unrealized foreign currency translation lossof $3.6 billion, compared with an unrealized foreign currency translation loss of $3.6 billion at December 31, 2022. The annualized return on average shareholders’ equity in the first quarter of 2023 was 23.8%.
Shareholders’ equity excluding accumulated other comprehensive income (AOCI)(2) (adjusted book value) was $27.1 billion, or $44.66 per share at March 31, 2023, compared with $26.6 billion, or $43.18 per share, at December 31, 2022. The annualized adjusted return on equity (ROE) excluding foreign currencyimpact(2) in the first quarter of 2023 was 14.8%.

(1) Yen/U.S. dollar exchange rates are based on the published MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).
(2) See the Results of Operations section of this MD&A for a definition of this non-U.S. GAAP financial measure.
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RESULTS OF OPERATIONS
The Company earns its revenues principally from insurance premiums and investments. The Company’s operating expenses primarily consist of insurance benefits provided and reserves established for anticipated future insurance benefits, general business expenses, commissions and other costs of selling and servicing its products. Profitability for the Company depends principally on its ability to price its insurance products at a level that enables the Company to earn a margin over the costs associated with providing benefits and administering those products. Profitability also depends on, among other items, actuarial and policyholder behavior experience on insurance products, and the Company's ability to attract and retain customer assets, generate and maintain favorable investment results, effectively deploy capital and utilize tax capacity, and manage expenses.

This document includes references to the Company’s financial performance measures which are not calculated in accordance with United States generally accepted accounting principles (U.S. GAAP) (non-U.S. GAAP). The financial measures exclude items that the Company believes may obscure the underlying fundamentals and trends in insurance operations because they tend to be driven by general economic conditions and events or related to infrequent activities not directly associated with insurance operations.

Due to the size of Aflac Japan, where the functional currency is the Japanese yen, fluctuations in the yen/dollar exchange rate can have a significant effect on reported results. In periods when the yen weakens, translating yen into dollars results in fewer dollars being reported. When the yen strengthens, translating yen into dollars results in more dollars being reported. Consequently, yen weakening has the effect of suppressing current period results in relation to the comparable prior period, while yen strengthening has the effect of magnifying current period results in relation to the comparable prior period. A significant portion of the Company’s business is conducted in yen and never converted into dollars but translated into dollars for U.S. GAAP reporting purposes, which results in foreign currency impact to earnings, cash flows and book value on a U.S. GAAP basis. Management evaluates the Company's financial performance both including and excluding the impact of foreign currency translation to monitor, respectively, cumulative currency impacts and the currency-neutral operating performance over time. The average yen/dollar exchange rate is based on the published MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).

The Company defines the non-U.S. GAAP financial measures included in this document as follows:

Adjusted earnings are adjusted revenues less benefits and adjusted expenses. Adjusted earnings per share (basic or diluted) are the adjusted earnings for the period divided by the weighted average outstanding shares (basic or diluted) for the period presented. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding adjusted net investment gains and losses. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect the Company's underlying business performance. Management uses adjusted earnings and adjusted earnings per diluted share to evaluate the financial performance of the Company’s insurance operations on a consolidated basis and believes that a presentation of these financial measures is vitally important to an understanding of the underlying profitability drivers and trends of the Company’s insurance business. The most comparable U.S. GAAP financial measures for adjusted earnings and adjusted earnings per share (basic or diluted) are net earnings and net earnings per share, respectively.

Adjusted net investment gains and losses are net investment gains and losses adjusted for i) amortized hedge cost/income related to foreign currency exposure management strategies and certain derivative activity, ii) net interest cash flows from foreign currency and interest rate derivatives associated with certain investment strategies, which are both reclassified to net investment income, and iii) the impact of interest cash flows from derivatives associated with notes payable, which is reclassified to interest expense as a component of total adjusted expenses. The Company considers adjusted net investment gains and losses important as it represents the remainder amount that is considered outside management’s control, while excluding the components that are within management’s control and are accordingly reclassified to net investment income and interest expense. The most comparable U.S. GAAP financial measure for adjusted net investment gains and losses is net investment gains and losses.

Amortized hedge costs/income represent costs/income incurred or recognized as a result of using foreign currency derivatives to hedge certain foreign exchange risks in the Company's Japan segment or in Corporate and other. These amortized hedge costs/ income are estimated at the inception of the derivatives based on the specific terms of each contract and are recognized on a straight-line basis over the term of the hedge. The Company believes that amortized hedge costs/income measure the periodic currency risk management costs/
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income related to hedging certain foreign currency exchange risks and are an important component of net investment income. There is no comparable U.S. GAAP financial measure for amortized hedge costs/ income.

Adjusted earnings excluding current period foreign currency impact are computed using the average foreign currency exchange rate for the comparable prior-year period, which eliminates fluctuations driven solely by foreign currency exchange rate changes. Adjusted earnings per diluted share excluding current period foreign currency impact is adjusted earnings excluding current period foreign currency impact divided by the weighted average outstanding diluted shares for the period presented. The Company considers adjusted earnings excluding current period foreign currency impact and adjusted earnings per diluted share excluding current period foreign currency impact important because a significant portion of the Company's business is conducted in Japan and foreign exchange rates are outside management’s control; therefore, the Company believes it is important to understand the impact of translating foreign currency (primarily Japanese yen) into U.S. dollars. The most comparable U.S. GAAP financial measures for adjusted earnings excluding current period foreign currency impact and adjusted earnings per diluted share excluding current period foreign currency impact are net earnings and net earnings per share, respectively.

Adjusted book value is the U.S. GAAP book value (representing total shareholders’ equity), less AOCI as recorded on the U.S. GAAP balance sheet. Adjusted book value per common share is adjusted book value at the period end divided by the ending outstanding common shares for the period presented. The Company considers adjusted book value and adjusted book value per common share important as they exclude AOCI, which fluctuates due to market movements that are outside management’s control. The most comparable U.S. GAAP financial measures for adjusted book value and adjusted book value per common share are total book value and total book value per common share, respectively.

Adjusted return on equity excluding foreign currency impact is adjusted earnings excluding the current period foreign currency impact divided by average shareholders’ equity, excluding AOCI. The Company considers adjusted return on equity excluding foreign currency impact important as it excludes changes in foreign currency and components of AOCI, which fluctuate due to market movements that are outside management's control. The most comparable U.S. GAAP financial measure for adjusted return on equity excluding foreign currency impact is ROE as determined using net earnings and average total shareholders’ equity.

U.S. dollar-denominated investment income excluding foreign currency impact represents amounts excluding foreign currency impact on U.S. dollar-denominated investment income using the average foreign currency exchange rate for the comparable prior year period. The Company considers U.S. dollar-denominated investment income excluding foreign currency impact important as it eliminates the impact of foreign currency changes on the Aflac Japan segment results, which are outside management’s control. The most comparable U.S. GAAP financial measure for U.S. dollar-denominated investment income excluding foreign currency impact is the corresponding net investment income amount from the U.S. dollar denominated investments translated to yen.

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The following table is a reconciliation of items impacting adjusted earnings and adjusted earnings per diluted share to the most directly comparable U.S. GAAP financial measures of net earnings and net earnings per diluted share, respectively.
Reconciliation of Net Earnings to Adjusted Earnings
  
In MillionsPer Diluted Share
Three Months Ended March 31,
2023202220232022
Net earnings$1,188 $1,047 $1.94 $1.60 
Items impacting net earnings:
Adjusted net investment (gains) losses (1)
(209)(134)(.34)(.21)
Other and non-recurring (income) loss0 .00 .00 
Income tax (benefit) expense on items excluded from adjusted earning(26)28 (.04).04 
Adjusted earnings953 942 1.55 1.44 
Current period foreign currency impact (2)
41 N/A.07 N/A
Adjusted earnings excluding current period foreign currency impact$994 $942 $1.62 $1.44 
(1) See reconciliation of net investment (gains) losses to adjusted net investment (gains) losses below.
(2) Prior period foreign currency impact reflected as “N/A” to isolate change for current period only.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

Reconciling Items

Net Investment Gains and Losses

Reconciliation of Net Investment (Gains) Losses to Adjusted Net Investment (Gains) Losses
Three Months Ended March 31,
(In millions)20232022
Net investment (gains) losses$(123)$(122)
Items impacting net investment (gains) losses:
Amortized hedge costs(58)(26)
Amortized hedge income29 11 
Net interest cash flows from derivatives associated
  with certain investment strategies
(69)(9)
Interest rate component of the change in fair value
  of foreign currency swaps on notes payable
12 13 
Adjusted net investment (gains) losses$(209)$(134)

The Company's investment strategy is to invest primarily in fixed maturity securities to provide a reliable stream of investment income, which is one of the drivers of the Company’s profitability. This investment strategy incorporates asset-liability matching (ALM) to align the expected cash flows of the portfolio to the needs of the Company's liability structure. The Company does not purchase securities with the intent of generating investment gains or losses. However, investment gains and losses may be realized as a result of changes in the financial markets and the creditworthiness of specific issuers, tax planning strategies, and/or general portfolio management and rebalancing. The realization of investment gains and losses is independent of the underwriting and administration of the Company's insurance products.

Net investment gains and losses excluded from adjusted earnings include the following:

Securities Transactions
Credit Losses
Changes in the Fair Value of Equity Securities
Certain Derivative and Foreign Currency Activities.

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Securities Transactions, Credit Losses and Changes in the Fair Value of Equity Securities

Securities transactions include gains and losses from sales and redemptions of investments where the amount received is different from the amortized cost of the investment. Credit losses include losses for held-to-maturity fixed maturity securities, available-for-sale fixed maturity securities, loan receivables, loan commitments and reinsurance recoverables. Changes in the fair value of equity securities are the result of gains or losses driven by fluctuations in market prices.

Certain Derivative and Foreign Currency Activities

The Company's derivative activities include:

foreign currency forwards and options used in hedging foreign exchange risk on U.S. dollar-denominated investments in Aflac Japan's portfolio, with options used on a standalone basis and/or in a collar strategy;

foreign currency forwards and options used to economically hedge certain portions of forecasted cash flows denominated in yen and hedge the Company's long term exposure to a weakening yen;

cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and subordinated debentures;

foreign currency swaps that are associated with variable interest entity (VIE) bond purchase commitments, and investments in special-purpose entities, including VIEs where the Company is the primary beneficiary;

interest rate swaps used to economically hedge interest rate fluctuations in certain variable-rate investments;

interest rate swaptions used to hedge changes in the fair value associated with interest rate fluctuations for certain U.S. dollar-denominated available-for-sale fixed-maturity securities; and

bond purchase commitments at the inception of investments in consolidated VIEs.

Gains and losses are recognized as a result of valuing these derivatives, net of the effects of hedge accounting. The Company also excludes from adjusted earnings the accounting impacts of remeasurement associated with changes in the foreign currency exchange rate.

For additional information regarding net investment gains and losses, including details of reported amounts for the periods presented, see Notes 3 and 4 of the Notes to the Consolidated Financial Statements.

Other and Non-recurring Items

The U.S. insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. The system can result in periodic charges to the Company as a result of insolvencies/bankruptcies that occur with other companies in the life insurance industry. Some states permit member insurers to recover assessments paid through full or partial premium tax offsets. These charges neither relate to the ordinary course of the Company’s business nor reflect the Company’s underlying business performance, but result from external situations not controlled by the Company. The Company excludes any charges associated with U.S. guaranty fund assessments and the corresponding tax benefit or expense from adjusted earnings.

In Japan, the government also requires the insurance industry to contribute to a policyholder protection corporation that provides funds for the policyholders of insolvent insurers; however, these costs are calculated and administered differently than in the U.S. In Japan, these costs are not directly related to specific insolvencies or bankruptcies, but are rather a regular operational cost for an insurance company. Based on this structure, the Company does not remove the Japan policyholder protection expenses from adjusted earnings.

The Company considers the costs associated with the early redemption of its debt to be unrelated to the underlying fundamentals and trends in its insurance operations. Additionally, these costs are driven by changes in interest rates subsequent to the issuance of the debt, and the Company considers these interest rate changes to represent economic conditions not directly associated with its insurance operations.
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Income Taxes

The Company's combined U.S. and Japanese effective income tax rate on pretax earnings was 11.5% for the three-month period ended March 31, 2023, compared with 19.1% for the same period in 2022. The combined effective tax rate differs from the U.S. statutory rate primarily due to historic and solar tax credits and the exclusion of foreign currency translation gains and losses held in the Delaware Statutory Trust. For additional information, see the Critical Accounting Estimates - Income Taxes section of Item 7. MD&A in the 2022 Annual Report.

The Company expects that its effective tax rate on adjusted earnings for future periods will be approximately 20%. The effective tax rate continues to be subject to future tax law changes both in the U.S. and in foreign jurisdictions. See the risk factor entitled "Tax rates applicable to the Company may change" in Item 1A. Risk Factors of the 2022 Annual Report for more information.

Foreign Currency Translation

Aflac Japan’s premiums and a significant portion of its investment income are received in yen, and its claims and most expenses are paid in yen. Aflac Japan purchases yen-denominated assets and U.S. dollar-denominated assets, which may be hedged to yen, to support yen-denominated policy liabilities. Yen-denominated income statement accounts are translated to U.S. dollars using the weighted average Japanese yen/U.S. dollar foreign exchange rate for the reporting period, except realized gains and losses on securities transactions which are translated at the exchange rate on the trade date of each transaction. Yen-denominated balance sheet accounts are translated to U.S. dollars using the spot Japanese yen/U.S. dollar foreign exchange rate at the end of the reporting period.

RESULTS OF OPERATIONS BY SEGMENT

U.S. GAAP financial reporting requires that a company report financial and descriptive information about operating segments in its annual and interim period financial statements. Furthermore, the Company is required to report a measure of segment profit or loss, certain revenue and expense items, and segment assets. The Company's insurance business consists of two segments: Aflac Japan and Aflac U.S. Aflac Japan is the principal contributor to consolidated earnings. In addition, the Parent Company, other business units that are not individually reportable, and business activities, including reinsurance activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other. See Item 1. Business in the 2022 Annual Report for a summary of each segment's products and distribution channels.

Consistent with U.S. GAAP guidance for segment reporting, pretax adjusted earnings is the Company's U.S. GAAP measure of segment performance. The Company believes that a presentation of this measure is vitally important to an understanding of the underlying profitability drivers and trends of its business. Additional performance measures used to evaluate the financial condition and performance of the Company's segments are listed below.

Operating Ratios
New Annualized Premium Sales
New Money Yield
Return on Average Invested Assets
Average Weekly Producer
Premium Persistency

For additional information on the Company’s performance measures included in this MD&A, see the Glossary of Selected Terms found directly following Part II. Other Information. See Note 2 of the Notes to the Consolidated Financial Statements for the reconciliation of segment results to the Company's consolidated U.S. GAAP results and additional information.
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AFLAC JAPAN SEGMENT
Aflac Japan Pretax Adjusted Earnings
Changes in Aflac Japan’s pretax adjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac Japan.

Aflac Japan Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$2,170 $2,625 
Net investment income: (1)
Yen-denominated investment income263 299 
U.S. dollar-denominated investment income407 406 
Net investment income669 705 
Amortized hedge costs related to certain foreign currency exposure management strategies(58)26 
Adjusted net investment income611 680 
Other income (loss)9 
Total adjusted revenues2,790 3,314 
Benefits and claims:
Benefits and claims, excluding reserve remeasurement1,466 1,793 
Reserve remeasurement (gains) losses(13)(14)
Total benefits and claims, net1,453 1,779 
Adjusted expenses:
Amortization of deferred policy acquisition costs85 94 
Insurance commissions138 161 
Insurance and other expenses326 409 
Total adjusted expenses549 664 
Total benefits and adjusted expenses2,002 2,443 
           Pretax adjusted earnings$788 $870 
Weighted-average yen/dollar exchange rate132.30 116.18 
In DollarsIn Yen
Percentage change over
 previous period:
Three Months Ended March 31,Three Months Ended March 31,
2023202220232022
Net earned premiums(17.3)%(11.5)%(5.9)%(2.8)%
Adjusted net investment income(10.1)(3.6)2.4 5.9 
Total adjusted revenues(15.8)(10.0)(4.1)(1.2)
Pretax adjusted earnings(9.4)(5.0)3.2 4.7 
(1) Net interest cash flows from derivatives associated with certain investment strategies of $(62) and $(10) for the three-month periods ended March 31, 2023 and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, Aflac Japan's net earned premiums decreased, in yen terms, mainly due to limited-pay products reaching premium paid-up status and the implementation of the Aflac Re global reinsurance strategy. Adjusted net investment income, in yen terms, increased in the three-month period ended March 31, 2023, primarily due to the impact of foreign exchange on U.S. dollar-denominated investments offset by higher hedge costs. The increase in pretax adjusted earnings in yen for the three-month period ended March 31, 2023 was primarily due to a decrease in total benefits and adjusted expenses.

Annualized premiums in force decreased 4.8% to ¥1.28 trillion as of March 31, 2023, compared with ¥1.35 trillion as of March 31, 2022. The decrease in annualized premiums in force in yen was driven primarily by limited-pay products
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reaching premium paid-up status and lower sales. Annualized premiums in force, translated into dollars at respective period-end exchange rates, were $9.6 billion at March 31, 2023, compared with $11.0 billion at March 31, 2022. As of March 31, 2023, Aflac Japan exceeded 23 million individual policies in force in Japan, with more than 14 million cancer policies in force in Japan.

Aflac Japan's investment portfolios include U.S. dollar-denominated securities and reverse-dual currency securities (yen-denominated debt securities with dollar coupon payments). In years when the yen strengthens in relation to the dollar, translating Aflac Japan's U.S. dollar-denominated investment income into yen lowers growth rates for net investment income, total adjusted revenues, and pretax adjusted earnings in yen terms. In years when the yen weakens, translating U.S. dollar-denominated investment income into yen magnifies growth rates for net investment income, total adjusted revenues, and pretax adjusted earnings in yen terms.

The following table illustrates the effect of translating Aflac Japan’s U.S. dollar-denominated investment income and related items into yen by comparing certain segment results with those that would have been reported had foreign currency exchange rates remained unchanged from the comparable period in the prior year. Amounts excluding foreign currency impact on U.S. dollar-denominated investment income were determined using the average foreign currency exchange rate for the comparable prior year period. See non-U.S. GAAP financial measures defined above.
Aflac Japan Percentage Changes Over Previous Period
(Yen Operating Results)
For the Periods Ended March 31,
  
Including Foreign
Currency Changes
Excluding Foreign
Currency Changes
Three MonthsThree Months
  
2023202220232022
Adjusted net investment income2.4 %5.9 %(5.9)%.3 %
Total adjusted revenues(4.1)(1.2)(5.8)(2.3)
Pretax adjusted earnings3.2 4.7 (3.0).5 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

The following table presents a summary of operating ratios in yen terms for Aflac Japan.
  
Three Months Ended March 31,
Ratios to total adjusted revenues:20232022
Total benefits and claims, net52.1 %53.7 %
Adjusted expenses:
Amortization of deferred policy acquisition costs3.1 2.8 
Insurance commissions4.9 4.8 
Insurance and other expenses11.7 12.4 
Total adjusted expenses19.7 20.0 
Pretax adjusted earnings28.2 26.2 
Ratios to total premiums:
Total benefits and claims, net67.0 %67.9 %
Adjusted expenses:
Amortization of deferred policy acquisition costs3.9 3.6 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, the total benefits and claims ratio to total premiums decreased, compared with the same period in the prior year, primarily due to a decrease in the third sector benefit ratio due to favorable experience and the continued change in the mix of first and third sector business. In the three-month period ended March 31, 2023, the total adjusted expense ratio decreased slightly, compared with the same period in the prior year, reflecting the decrease in total adjusted revenues and an offsetting decrease in total adjusted expenses due to expense control efforts as well as the reinsurance transaction with Aflac Re. In total, the pretax adjusted profit margin
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increased in the three-month period ended March 31, 2023 primarily due to a lower benefit ratio and a lower expense ratio and an offsetting decrease in total adjusted revenues.

The following table presents Aflac Japan's premium persistency on a 12-month rolling basis as of March 31.
20232022
Premium persistency93.9 %94.3 %

Aflac Japan Sales

The following table presents Aflac Japan’s new annualized premium sales for the periods ended March 31.
  
In DollarsIn Yen
Three MonthsThree Months
(In millions of dollars and billions of yen)2023202220232022
New annualized premium sales$100 $103 ¥13.2 ¥11.9 
Increase (decrease) over prior period(3.2)%(22.4)%10.8 %(14.8)%

In 2023, the new annualized premium sales on a yen basis increased, compared with 2022, due primarily to sales of Aflac Japan's new cancer insurance product and updated first sector products, all of which were launched in the second half of 2022. Further, these products were launched at Dai-ichi Life and other financial institutions in January 2023.

The following table details the contributions to Aflac Japan's new annualized premium sales by major insurance product for the periods ended March 31.
  Three Months
  20232022
Cancer59.9 %53.0 %
Medical and other health:
Medical20.8 31.4 
Income support.6 1.1 
Life insurance:
Traditional life (1)
7.3 9.0 
WAYS8.9 .7 
Child endowment.6 .3 
Other1.9 4.5 
    Total100.0 %100.0 %
(1) Includes term and whole life

The foundation of Aflac Japan's product portfolio has been, and continues to be, third sector products, which include cancer, medical, income support, and nursing care insurance products. With continued cost pressure on Japan’s health care system, the Company expects the need for third sector products will continue to rise in the future and that the medical and cancer insurance products Aflac Japan provides will continue to be an important part of its product portfolio. Moreover, in November 2022, Aflac Japan refreshed its first sector savings-type products WAYS and Child Endowment and began to actively promote sales of these products after having curtailed sales of both products beginning in 2013. The refreshment of these first sector products position Aflac Japan for potential future long-term sales opportunities by marketing these products to a younger demographic as well as potential cross-selling opportunities of Aflac Japan's third sector products.

Sales of Aflac Japan cancer insurance products in the Japan Post Group channel experienced a material decline beginning in August 2019. Japan Post Group resumed proactive sales of cancer insurance policies in April 2021 and Aflac Japan continues to strengthen the strategic alliance. In April 2023, Japan Post Group began selling Aflac Japan's new cancer insurance product that was launched in August 2022. For additional information, see the risk factor entitled "Sales of the Company's products and services are dependent on its ability to attract, retain and support a network of qualified sales associates, brokers and employees in the U.S. and sales associates and other distribution partners in Japan," in Item 1A. Risk Factors in the 2022 Annual Report.
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Aflac Japan continues to promote digital and web-based sales to groups and use of its system that enables smart device-based insurance application by allowing the customer and an Aflac Japan operator to see the same screen through their smart devices. Further, Aflac Japan continues to utilize its virtual sales tool that enables online consultations and policy applications to be completed entirely online.

The following table details the contributions to Aflac Japan's new annualized premium sales by agency type for the three-month periods ended March 31.
20232022
Independent corporate and individual50.9 %48.9 %
Affiliated corporate (1)
45.4 46.5 
Bank3.7 4.6 
Total100.0 %100.0 %
(1) Includes Japan Post Group, Dai-ichi Life and Daido Life

During the three-month period ended March 31, 2023, Aflac Japan recruited 4 new sales agencies. At March 31, 2023, Aflac Japan was represented by approximately 7,300 sales agencies, with approximately 110,000 licensed sales associates employed by those agencies. The number of sales agencies has declined in recent years due to Aflac Japan's focus on supporting agencies with strong management frameworks, high productivity and more producing agents.

At March 31, 2023, Aflac Japan had agreements to sell its products at 359 banks, approximately 90% of the total number of banks in Japan.

Aflac Japan Investments

The level of investment income in yen is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, the effect of yen/dollar exchange rates on U.S. dollar-denominated investment income, and other factors.

As part of the Company's portfolio management and asset allocation process, Aflac Japan invests in yen and U.S. dollar-denominated investments. Yen-denominated investments primarily consist of JGBs, public and private fixed maturity securities and public equity securities. Aflac Japan's U.S. dollar-denominated investments include fixed maturity investments and growth assets, including alternative investments in limited partnerships or similar investment vehicles. Aflac Japan has been investing in both publicly traded and privately originated U.S. dollar-denominated investment-grade and below-investment-grade fixed maturity securities and loan receivables, and has entered into foreign currency forwards and options to hedge the currency risk on the fair value of a portion of the U.S. dollar investments.

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The following table details the investment purchases for Aflac Japan.
Three Months Ended March 31,
(In millions)20232022
Yen-denominated:
  Fixed maturity securities:
     Japan government and agencies$151 $
     Private placements273 307 
     Other fixed maturity securities77 17 
  Equity securities123 91 
  Other investments6 
        Total yen-denominated$630 $418 
U.S. dollar-denominated:
  Fixed maturity securities:
     Other fixed maturity securities$376 $85 
     Collateralized loan obligations0 67 
  Commercial mortgage and other loans:
     Transitional real estate loans53 507 
     Middle market loans150 311 
  Other investments137 48 
        Total U.S. dollar-denominated$716 $1,018 
            Total Aflac Japan purchases$1,346 $1,436 

See the Investments section of this MD&A for further discussion of these investment programs, and see Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for more information regarding loans and loan receivables.

The following table presents the results of Aflac Japan’s investment yields for the periods ended March 31.
  Three Months
  20232022
Total purchases for the period (in millions) (1)
$1,203 $1,385 
New money yield (1),(2)
5.18 %3.90 %
Return on average invested assets (3)
2.57 2.54 
Portfolio book yield, including U.S. dollar-denominated investments, end of period (1),(2)
3.13 %2.62 %
(1) Includes fixed maturity securities, commercial mortgage and other loans, equity securities, and excludes alternative investments in limited partnerships
(2) Reported on a gross yield basis; excludes investment expenses, external management fees, and amortized hedge costs
(3) Net of investment expenses and amortized hedge costs, year-to-date number reflected on a quarterly average basis

The increase in the Aflac Japan new money yield in the three-month period ended March 31, 2023 was primarily due to increases in U.S. interest rates. See Notes 3, 4 and 5 of the Notes to the Consolidated Financial Statements and the Investments and Hedging Activities sections of this MD&A for additional information on the Company's investments and hedging strategies.

AFLAC U.S. SEGMENT
Aflac U.S. Pretax Adjusted Earnings
Changes in Aflac U.S. pretax adjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac U.S.
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Aflac U.S. Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$1,428 $1,413 
Adjusted net investment income (1)
197 184 
Other income35 42 
Total adjusted revenues1,660 1,639 
Benefits and claims:
Benefits and claims, excluding reserve remeasurement691 686 
Reserve remeasurement (gains) losses(40)(20)
Total benefits and claims651 666 
Adjusted expenses:
Amortization of deferred policy acquisition costs119 114 
Insurance commissions142 140 
Insurance and other expenses395 387 
Total adjusted expenses657 640 
Total benefits and adjusted expenses1,308 1,306 
             Pretax adjusted earnings$352 $333 
Percentage change over previous period:
Net earned premiums1.1 %(.6)%
Adjusted net investment income7.1 4.5 
Total adjusted revenues1.3 .7 
Pretax adjusted earnings5.7 .6 
(1) Net interest cash flows from derivatives associated with certain investment strategies of $(7) and $1 for the three-month periods ended March 31, 2023 and 2022, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, net earned premiums for Aflac U.S. increased primarily driven by continued investments in growth initiatives. Adjusted net investment income increased in the three-month period ended March 31, 2023 primarily due to higher floating rate income due to higher volumes and rates. The increase in pretax adjusted earnings in the three-month period ended March 31, 2023 was driven primarily by lower benefits and higher revenues, partially offset by higher expenses.

Annualized premiums in force increased 1.4% to $6.0 billion at March 31, 2023, compared with $5.9 billion at March 31, 2022.
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The following table presents a summary of operating ratios for Aflac U.S.
  
Three Months Ended March 31,
Ratios to total adjusted revenues:20232022
Total benefits and claims39.2 %40.7 %
Adjusted expenses:
Amortization of deferred policy acquisition costs7.2 7.0 
Insurance commissions8.6 8.5 
Insurance and other expenses23.8 23.5 
Total adjusted expenses39.6 39.0 
  Pretax adjusted earnings21.2 20.3 
Ratios to total premiums:
Total benefits and claims45.6 %47.1 %
Adjusted expenses:
Amortization of deferred policy acquisition costs8.3 8.1 
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

For the three-month period ended March 31, 2023, the total benefits and claims ratio to total premiums decreased compared with the same period in 2022, reflecting assumption updates in the third quarter of 2022 and reserve remeasurement gains related to experience. The total adjusted expense ratio increased in the three-month period ended March 31, 2023, when compared with the same period in 2022, primarily due to higher planned spending, reflecting ongoing investments in the U.S. platform and higher DAC amortization associated with lower persistency. The pretax adjusted profit margin increased in the three-month period ended March 31, 2023, compared with the same period in 2022, primarily due to the lower benefit ratio.

The following table presents premium persistency for Aflac U.S. on a 12-month rolling basis as of March 31.
20232022
Premium persistency77.9 %78.7 %

Aflac U.S. Sales
The following table presents Aflac's U.S. new annualized premium sales for the periods ended March 31.
Three Months
(In millions)20232022
New annualized premium sales$315 $299 
Increase (decrease) over prior period5.3 %19.0 %

New annualized premium sales for accident insurance decreased 1.8%; disability sales increased 13.8%; critical care insurance sales (including cancer insurance) increased 1.8%; hospital indemnity insurance sales increased .2%; dental/vision sales increased 22.7%; and life sales increased 10.3% in the first quarter of 2023, compared with the first quarter of 2022. The increase in sales for Aflac U.S. in the first quarter of 2023 reflects continued improvement from investment in growth initiatives as well as productivity gains.
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The following table details the contributions to Aflac's U.S. new annualized premium sales by major insurance product category for the periods ended March 31.
  
Three Months
20232022
Accident23.5 %25.3 %
Disability25.2 23.3 
 Critical care(1)
20.5 21.2 
Hospital indemnity15.9 16.7 
Dental/vision6.6 5.6 
Life8.3 7.9 
Total100.0 %100.0 %
(1) Includes cancer, critical illness, and hospital intensive care products

In the first quarter of 2023, the Aflac U.S. sales force included an average of approximately 6,100 U.S. agents, including brokers, who were actively producing business on a weekly basis. The Company believes that this average weekly producer equivalent metric allows sales management to monitor progress and needs, as well as serve as a leading indicator of future production capacity.

Aflac U.S. Investments

The level of investment income is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, and other factors.

As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. has been investing in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loan receivables.

The following table details the investment purchases for Aflac U.S.
Three Months Ended March 31,
(In millions)20232022
Fixed maturity securities:
     Other fixed maturity securities$209 $232 
     Infrastructure debt0 
Equity securities0 
Commercial mortgage and other loans:
     Transitional real estate loans14 107 
     Middle market loans19 166 
Other investments15 
        Total Aflac U.S. Purchases$257 $528 

See Note 3 of the Notes to the Consolidated Financial Statements and Notes 1 and 3 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for more information regarding loans and loans receivables.

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The following table presents the results of Aflac's U.S. investment yields for the periods ended March 31.
Three Months
  
20232022
Total purchases for period (in millions) (1)
$242 $523 
New money yield (1),(2)
7.01 %4.60 %
Return on average invested assets (3)
4.74 4.61 
Portfolio book yield, end of period (1),(2)
5.46 %4.95 %
(1) Includes fixed maturity securities, commercial mortgage and other loans, equity securities, and excludes alternative investments in limited partnerships
(2) Reported on a gross yield basis; excludes investment expenses and external management fees
(3) Net of investment expenses, year-to-date number reflected on a quarterly average basis

The increase in the Aflac U.S. new money yield in the three-month period ended March 31, 2023 was primarily due to increases in U.S. interest rates. See Notes 3 and 5 of the Notes to the Consolidated Financial Statements and the Investments section of this MD&A for additional information on the Company's investments.

CORPORATE AND OTHER

Changes in the pretax adjusted earnings of Corporate and other are primarily affected by investment income. The following table presents a summary of results for Corporate and other.
Corporate and Other Summary of Operating Results
  
Three Months Ended March 31,
(In millions)20232022
Net earned premiums$91 $41 
Net investment income (loss) (1)
7 
Amortized hedge income related to certain foreign currency management strategies29 11 
Adjusted net investment income36 15 
Other income2 18 
Total adjusted revenues129 74 
Total benefits and claims, net46 37 
Adjusted expenses:
Interest expense33 40 
Other adjusted expenses57 40 
Total adjusted expenses90 80 
Total benefits and adjusted expenses136 116 
Pretax adjusted earnings$(7)$(42)
(1) The change in value of federal historic rehabilitation and solar investments in partnerships of $51 and $12 for the three-month periods ended March 31, 2023, and 2022, respectively, is included as a reduction to net investment income. Tax credits on these investments of $52 and $16 for the three-month periods ended March 31, 2023, and 2022, respectively, have been recorded as an income tax benefit in the consolidated statement of earnings. See Note 3 of the Notes to the Consolidated Financial Statements for additional information on these investments.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

In the three-month period ended March 31, 2023, total adjusted revenues increased compared to the same period in 2022 primarily due to higher total premiums associated with the Aflac Re global reinsurance strategy and an increase in adjusted net investment income. Total adjusted expenses increased compared to the same period in 2022 primarily due to expenses associated with the Aflac Re global reinsurance strategy. These results also reflect the impact of foreign currency on total net earned premiums and the corresponding benefits. Pretax adjusted earnings increased in the three-month period ended March 31, 2023 when compared to the same period in 2022 reflecting the increase in total adjusted revenue, partially offset by higher other adjusted expenses, net benefits and claims.

The Parent Company invests in partnerships that specialize in rehabilitating historic structures or the installation of solar equipment in order to receive federal historic rehabilitation and solar tax credits. These investments are classified as
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limited partnerships and included in other investments in the consolidated balance sheet. The change in value of each investment is recorded as a reduction to net investment income. Tax credits generated by these investments are recorded as an income tax benefit in the consolidated statement of earnings.

INVESTMENTS

The Company’s investment strategy utilizes disciplined asset and liability management while seeking long-term risk-adjusted investment returns and the delivery of stable income within regulatory and capital objectives, and preserving shareholder value. In attempting to optimally balance these objectives, the Company seeks to maintain on behalf of Aflac Japan a diversified portfolio of yen-denominated investment assets, U.S. dollar-denominated investment portfolio hedged back to yen and a portfolio of unhedged U.S. dollar-denominated assets. As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. invests in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loans. The Company is also a signatory to the Principles for Responsible Investment, a global framework for incorporating environmental, social and governance (ESG) considerations into investment and ownership decisions.

For additional information concerning the Company's investments, see Notes 3, 4, and 5 of the Notes to the Consolidated Financial Statements.

The following tables detail investments by segment.

Investment Securities by Segment
March 31, 2023
(In millions)Aflac JapanAflac U.S.Corporate and Other Total
Available for sale, fixed maturity securities,
   at fair value
$61,628 $12,661 $3,810 $78,099 
Held to maturity, fixed maturity securities,
   at amortized cost (1)
18,936 0 0 18,936 
Equity securities655 51 381 1,087 
Commercial mortgage and other loans:
Transitional real estate loans (1)
5,277 1,158 200 6,635 
Commercial mortgage loans (1)
1,134 624 0 1,758 
Middle market loans (1)
4,474 461 0 4,935 
Other investments:
Policy loans189 25 0 214 
Short-term investments (2)
1,334 172 1,055 2,561 
Limited partnerships2,034 222 176 2,432 
Other0 34 0 34 
Investment in affiliate (3)
0 119 (119)0 
     Total investments95,661 15,527 5,503 116,691 
Cash and cash equivalents1,517 701 1,591 3,809 
              Total investments and cash$97,178 $16,228 $7,094 $120,500 
(1) Net of allowance for credit losses
(2) Includes securities lending collateral
(3) For consolidated reporting, Aflac U.S.'s investment in Aflac Re is eliminated in Corporate and other

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December 31, 2022
(In millions)Aflac JapanAflac U.S.Corporate and Other Total
Available for sale, fixed maturity securities,
   at fair value
$61,615 $12,231 $1,895 $75,741 
Held to maturity, fixed maturity securities,
   at amortized cost (1)
19,056 19,056 
Equity securities650 51 390 1,091 
Commercial mortgage and other loans:
Transitional real estate loans (1)
5,133 1,140 182 6,455 
Commercial mortgage loans (1)
1,269 729 15 2,013 
Middle market loans (1)
4,557 471 5,028 
Other investments:
Policy loans190 24 214 
Short-term investments (2)
319 184 1,029 1,532 
Limited partnerships1,900 208 182 2,290 
Other34 34 
Investment in affiliate (3)
195 (195)
     Total investments94,689 15,267 3,498 113,454 
Cash and cash equivalents1,601 720 1,622 3,943 
              Total investments and cash$96,290 $15,987 $5,120 $117,397 
(1) Net of allowance for credit losses
(2) Includes securities lending collateral
(3) For consolidated reporting, Aflac U.S.'s investment in Aflac Re is eliminated in Corporate and other

The ratings of the Company's securities referenced in the table below are based on the ratings designations provided by major rating organizations such as Moody's, Standard & Poor's and Fitch or, if not rated, are determined based on the Company's internal analysis of such securities. When the ratings issued by the rating agencies differ, the Company utilizes the second lowest rating when three or more rating agency ratings are available or the lowest rating when only two rating agency ratings are available.

The distributions of fixed maturity securities the Company owns, by credit rating, were as follows:

Composition of Fixed Maturity Securities by Credit Rating
 March 31, 2023December 31, 2022
 Amortized
Cost
  Fair    
  Value    
Amortized
Cost
  Fair    
  Value    
AAA1.7 %1.6 %1.6 %1.5 %
AA5.3 5.4 5.2 5.3 
A67.9 68.0 68.0 68.1 
BBB23.0 22.8 23.0 22.9 
BB or lower2.1 2.2 2.2 2.2 
Total100.0 %100.0 %100.0 %100.0 %

As of March 31, 2023, the Company's direct and indirect exposure to securities in its investment portfolio that were guaranteed by third parties was immaterial both individually and in the aggregate.

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The following table presents the 10 largest unrealized loss positions in the Company's portfolio as of March 31, 2023.
(In millions)Credit
Rating
Amortized
Cost
Fair
Value
Unrealized Loss 
KLM Royal Dutch AirlinesB$136 $103 $(33)
GLP Pte Ltd.BBB112 80 (32)
Autostrade Per Litalia SpaBBB148 116 (32)
Prologis LPA171 141 (30)
JP Morgan Chase and Co.A200 171 (29)
Banco de ChileA150 122 (28)
Investcorp Capital LimitedBB327 306 (21)
Credit Suisse Group AGBBB75 55 (20)
Grand City Properties SABBB56 37 (19)
Urban Renaissance AgencyA183 164 (19)

Generally, declines in fair values can be a result of changes in interest rates, yen/dollar exchange rate, and changes in net spreads driven by a broad market move or a change in the issuer's underlying credit quality. The Company believes these issuers have the ability to continue making timely payments of principal and interest. See the Unrealized Investment Gains and Losses section in Note 3 of the Notes to the Consolidated Financial Statements for further discussions of unrealized losses related to financial institutions and other corporate investments.

Below-Investment-Grade Securities

The Company's portfolio of below-investment-grade securities includes debt securities purchased while the issuer was rated investment grade plus other loans and bonds purchased as part of an allocation to that segment of the market. The following is the Company's below-investment-grade exposure.

Below-Investment-Grade Investments
March 31, 2023
(In millions)Par
Value
Amortized
Cost
(1)
Fair
Value
Unrealized
Gain
(Loss)
Investcorp Capital Limited$327 $327 $306 $(21)
Pemex Project Funding Master Trust225 225 228 3 
Commerzbank187 145 205 60 
Telecom Italia SpA150 150 183 33 
KLM Royal Dutch Airlines150 136 103 (33)
Apache Corporation138 110 130 20 
Howmet Aerospace Inc.100 70 101 31 
IKB Deutsche Industriebank AG97 48 77 29 
Generalitat de Catalunya60 25 60 35 
National Gas Co. Trinidad & Tobago52 50 46 (4)
Other Issuers63 64 51 (13)
          Subtotal (2)
1,549 1,350 1,490 140 
High yield corporate bonds736 622 668 46 
Middle market loans4,642 4,454 4,456 2 
          Grand Total$6,927 $6,426 $6,614 $188 
(1) Net of allowance for credit losses
(2) Securities initially purchased as investment grade, but have subsequently been downgraded to below investment grade

The Company invests in middle market loans primarily to U.S. corporate borrowers, most of which have below-investment-grade ratings. The objectives of this program include enhancing the yield on invested assets, achieving further diversification of credit risk, and mitigating the risk of rising interest rates and hedge costs through the acquisition of floating rate assets.

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The Company maintains an allocation to higher yielding corporate bonds within the Aflac Japan and Aflac U.S. portfolios. Most of these securities were rated below-investment-grade at the time of purchase, but the Company also purchased several that were rated investment grade which, because of market pricing, offer yields commensurate with below-investment-grade risk profiles. The objective of this allocation was to enhance the Company's yield on invested assets and further diversify credit risk. All investments in this program must have a minimum rating at purchase of low BB using the Company's above described rating methodology and are managed by the Company's internal credit portfolio management team.

Fixed Maturity Securities by Sector

The Company maintains diversification in investments by sector to avoid concentrations to any one sector, thus managing exposure risk. The following table shows the distribution of fixed maturities by sector classification.
March 31, 2023
(In millions)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value% of
Total
Government and agencies$43,595 $4,082 $(1,084)$46,593 46.3 %
Municipalities2,593 261 (97)2,757 2.8 
Mortgage- and asset-backed securities2,545 99 (77)2,567 2.7 
Public utilities7,495 671 (191)7,975 7.9 
Electric6,074 551 (134)6,489 6.4 
Natural Gas844 69 (32)882 .9 
Other577 51 (25)604 .6 
Sovereign and supranational1,118 134 (14)1,238 1.2 
Banks/financial institutions9,279 653 (512)9,420 9.8 
Banking5,571 455 (295)5,732 5.9 
Insurance1,716 143 (67)1,791 1.8 
Other1,992 55 (150)1,897 2.1 
Other corporate27,617 2,655 (1,107)29,165 29.3 
Basic Industry2,444 307 (83)2,669 2.6 
Capital Goods3,275 231 (147)3,359 3.5 
Communications2,906 375 (66)3,214 3.1 
Consumer Cyclical2,136 219 (50)2,305 2.3 
Consumer Non-Cyclical6,148 522 (240)6,429 6.5 
Energy2,556 359 (60)2,855 2.7 
Other1,343 95 (113)1,325 1.4 
Technology3,701 185 (171)3,716 3.9 
Transportation3,108 362 (177)3,293 3.3 
        Total fixed maturity securities$94,242 $8,555 $(3,082)$99,715 100.0 %
(1) Net of allowance for credit losses

Securities by Type of Issuance

The Company has investments in both publicly and privately issued securities. The Company's ability to sell either type of security is a function of overall market liquidity which is impacted by, among other things, the amount of outstanding securities of a particular issuer or issuance, trading history of the issue or issuer, overall market conditions, and idiosyncratic events affecting the specific issue or issuer.

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The following table details investment securities by type of issuance.

Investment Securities by Type of Issuance
  
March 31, 2023December 31, 2022
(In millions)
Amortized
Cost
(1)
Fair   
Value   
Amortized
Cost (1)
Fair  
Value  
Publicly issued securities:
Fixed maturity securities$76,825 $81,310 $77,176 $79,090 
Equity securities866 866 882 882 
      Total publicly issued77,691 82,176 78,058 79,972 
Privately issued securities: (2)
Fixed maturity securities (3)
17,417 18,405 17,349 17,861 
Equity securities221 221 209 209 
      Total privately issued17,638 18,626 17,558 18,070 
      Total investment securities$95,329 $100,802 $95,616 $98,042 
(1) Net of allowance for credit losses
(2) Primarily consists of securities owned by Aflac Japan
(3) Excludes Rule 144A securities

The following table details the Company's reverse-dual currency securities.

Reverse-Dual Currency Securities(1)
(Amortized cost, in millions)March 31,
2023
December 31,
2022
Privately issued reverse-dual currency securities$4,028 $4,049 
Publicly issued collateral structured as reverse-dual currency securities1,374 1,383 
Total reverse-dual currency securities$5,402 $5,432 
Reverse-dual currency securities as a percentage of total investment
   securities
5.7 %5.7 %
(1) Principal payments in yen and interest payments in dollars

Aflac Japan has a portfolio of privately issued securities to better match liability characteristics and secure higher yields than those available on Japanese government or other public corporate bonds.Aflac Japan’s investments in yen-denominated privately issued securities consist primarily of non-Japanese issuers, are rated investment grade at purchase and have longer maturities, thereby allowing the Company to improve asset/liability matching and overall investment returns. These securities are generally either privately negotiated arrangements or issued under medium-term note programs and have standard documentation commensurate with credit ratings of the issuer, except when internal credit analysis indicates that additional protective and/or event-risk covenants were required. Many of these investments have protective covenants appropriate to the specific investment. These may include a prohibition of certain activities by the borrower, maintenance of certain financial measures, and specific conditions impacting the payment of the Company's notes.

HEDGING ACTIVITIES

The Company uses derivative contracts to hedge foreign currency exchange rate risk and interest rate risk. The Company uses various strategies, including derivatives, to manage these risks. See Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the 2022 Annual Report for more information about market risk and the Company’s use of derivatives.

Derivatives are designed to reduce risk on an economic basis while minimizing the impact on financial results. The Company’s derivatives programs vary depending on the type of risk being hedged. See Note 4 of the Notes to the Consolidated Financial Statements for:

A description of the Company's derivatives, hedging strategies and underlying risk exposure.
Information about the notional amount and fair market value of the Company's derivatives.
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The unrealized and realized gains and losses impact on adjusted earnings of derivatives in cash flow, fair value, net investments in foreign operations, or non-qualifying hedging relationships.

Foreign Currency Exchange Rate Risk Hedge Program
The Company has deployed the following hedging strategies to mitigate exposure to foreign currency exchange rate risk:

Aflac Japan hedges U.S. dollar-denominated investments back to yen (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

Aflac Japan maintains certain unhedged U.S. dollar-denominated securities, which serve as an economic currency hedge of a portion of the Company's investment in Aflac Japan (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

The Parent Company designates yen-denominated liabilities (notes payable and loans) as non-derivative hedging instruments and designates certain foreign currency forwards and options as derivative hedges of the Company’s net investment in Aflac Japan (see Enterprise Corporate Hedging Program below).

The Parent Company enters into forward and option contracts to accomplish a dual objective of hedging foreign currency exchange rate risk related to dividend payments by its subsidiary, ALIJ, and reducing enterprise-wide hedge costs (see Enterprise Corporate Hedging Program below).


The following table presents metrics related to Aflac Japan's U.S. dollar-denominated hedge program and the Parent Company's enterprise corporate hedging program, including associated amortized hedge costs/income, for the periods ended March 31. See the Results of Operations section of this MD&A for the Company's definition of amortized hedge costs/income.
Three Months
20232022
Aflac Japan:
FX Forwards
   FX forward (sell USD, buy yen) notional at end of period (in billions) (1)
$3.7$4.5
   Weighted average remaining tenor (in months) (2)
9.89.9
   Amortized hedge income (cost) for period (in millions)$(39)$(13)
FX Options
FX option notional at the end of period (in billions) (1)
$13.5$13.5
Weighted average remaining tenor (in months) (2)
7.46.6
Amortized hedge income (cost) for period (in millions)$(19)$(13)
Corporate and other (Parent Company):
FX Forwards
   FX forward (buy USD, sell yen) notional at end of period (in billions) (1)
$5.0$5.0
   Weighted average remaining tenor (in months) (2)
10.410.9
   Amortized hedge income (cost) for period (in millions)$31$12
FX Options
FX option notional at the end of period (in billions) (1)
$2.2$1.9
Weighted average remaining tenor (in months) (2)
7.47.6
Amortized hedge income (cost) for period (in millions)$(2)$(1)
(1) Notional is reported net of any offsetting positions within Aflac Japan or the Parent Company, respectively.
(2) Tenor based on period reporting date to settlement date

Amortized hedge costs/income can fluctuate based upon many factors, including the derivative notional amount, the length of time of the derivative contract, changes in both U.S. and Japan interest rates, and supply and demand for dollar funding. Amortized hedge costs/income have fluctuated in recent periods due to changes in the previously mentioned factors.

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Aflac Japan’s U.S. Dollar-Denominated Hedge Program (U.S. Dollar Program)

Aflac Japan buys U.S. dollar-denominated investments, typically corporate bonds, and hedges them back to yen with foreign currency forwards and options to hedge foreign currency exchange rate risk. This economically creates yen assets that match yen liabilities during the life of the derivative and provides favorable capital treatment under the Japan solvency margin ratio (SMR) calculations. The currency risk being hedged is generally based on fair value of hedged investments. The following table summarizes the U.S. dollar-denominated investments held by Aflac Japan.
March 31,
2023
December 31,
2022
(In millions)
Amortized
Cost
(1)
Fair
Value
Amortized
Cost (1)
Fair
Value
Available-for-sale securities:
  Fixed maturity securities$12,817 $14,176 $14,321 $15,191 
Equity securities33 33 33 33 
Commercial mortgage and other loans:
  Transitional real estate loans (floating rate)5,277 5,207 5,133 5,088 
  Commercial mortgage and other loans1,134 1,013 1,269 1,129 
  Middle market loans (floating rate)4,474 4,468 4,557 4,545 
Other investments2,033 2,033 1,899 1,899 
      Total U.S. Dollar Program25,768 26,930 27,212 27,885 
Available-for-sale securities:
  Fixed maturity securities - economically converted to yen2,236 2,928 2,209 2,795 
      Total U.S. dollar-denominated investments in Aflac Japan$28,004 $29,858 $29,421 $30,680 
(1) Net of allowance for credit losses

The U.S. Dollar Program includes all U.S. dollar-denominated investments in Aflac Japan other than the investments in certain consolidated VIEs where the instrument is economically converted to yen as a result of a derivative in the consolidated VIE. The Company uses one-sided foreign currency put options to mitigate the settlement risk on U.S. dollar-denominated assets related to extreme foreign currency rate changes. From time to time, Aflac Japan also maintains a collar program on a portion of its U.S. Dollar Program to mitigate against more extreme moves in foreign exchange and therefore support SMR. As of March 31, 2023, there were no collars in Aflac Japan, and none of the Company's foreign currency options hedging Aflac Japan's U.S. dollar-denominated assets were in-the-money.

As of March 31, 2023, the fair value of Aflac Japan's unhedged U.S. dollar-denominated portfolio was $9.7 billion (excluding certain U.S. dollar-denominated assets shown in the table above as a result of consolidation that have been economically converted to yen using derivatives).

Foreign exchange derivatives used for hedging are periodically settled, which results in cash receipt or payment at maturity or early termination. The following table presents the settlements associated with the Company's currency derivatives used for hedging Aflac Japan’s U.S. dollar-denominated investments.
Three Months Ended March 31,
(In millions)20232022
Net cash inflows (outflows)$(579)$(619)

Enterprise Corporate Hedging Program

The Company has designated certain yen-denominated liabilities and foreign currency forwards and options of the Parent Company as accounting hedges of its net investment in Aflac Japan. The Company's consolidated yen-denominated net asset position was partially hedged at $11.1 billion as of March 31, 2023, with hedging instruments comprised of $3.9 billion of yen-denominated debt and $7.2 billion of foreign currency forwards and options, compared with $11.6 billion as of December 31, 2022, with hedging instruments comprised of $4.0 billion of yen-denominated debt and $7.6 billion of foreign currency forwards and options.

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The Company makes its accounting designation of net investment hedge at the beginning of each quarter. If the total of the designated Parent Company non-derivative and derivative notional is equal to or less than the Company's net investment in Aflac Japan, the hedge is deemed to be effective, and the currency exchange effect on the yen-denominated liabilities and the change in estimated fair value of the derivatives are reported in the unrealized foreign currency component of other comprehensive income. The Company's net investment hedge was effective during the three-month periods ended March 31, 2023 and 2022, respectively. For additional information on the Company's net investment hedging strategy, see Note 4 of the Notes to the Consolidated Financial Statements.

In order to economically mitigate risks associated with the enterprise-wide exposure to the yen and the level and volatility of hedge costs, the Parent Company enters into foreign exchange forward and option contracts. By buying U.S. dollars and selling yen, the Parent Company is effectively lowering its overall economic exposure to the yen, while Aflac Japan's U.S. dollar exposure remains reduced as a result of Aflac Japan's U.S. Dollar Program that economically creates yen assets. Among other objectives, this strategy is intended to offset the enterprise-wide amortized hedge costs by generating amortized hedge income. This activity is reported in Corporate and other. The Company continually evaluates the program’s efficacy.

As part of the Company’s internal reinsurance platform, Aflac Re enters into foreign currency forwards with the Parent Company to economically manage the currency mismatch between Aflac Re's assets, which are mostly denominated in U.S. dollars, and liabilities, which are mostly denominated in yen, in order to support and optimize BMA capital requirements. For additional information on the Company's internal reinsurance platform, see Note 8 of the Notes to the Consolidated Financial Statements and the Liquidity and Capital Resources section of this MD&A.

Interest Rate Risk Hedge Program

Aflac Japan and Aflac U.S. use interest rate swaps from time to time to mitigate the risk of investment income volatility for certain variable-rate investments. Additionally, to manage interest rate risk associated with its U.S. dollar-denominated investments held by Aflac Japan, from time to time the Company utilizes interest rate swaptions.

For additional discussion of the risks associated with the foreign currency exposure refer to the Currency Risk section in Item 7A., Quantitative and Qualitative Disclosures about Market Risk, and Item 1A, specifically to the Risk Factors titled “The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and “Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity" in the 2022 Annual Report.

See Note 4 of the Notes to the Consolidated Financial Statements for additional information on the Company's hedging activities.

DEFERRED POLICY ACQUISITION COSTS
The following table presents deferred policy acquisition costs by segment.
(In millions)March 31,
2023
December 31, 2022% Change      
Aflac Japan$5,776 $5,776 .0 %(1)
Aflac U.S.3,491 3,463 .8 
Total$9,267 $9,239 .3 %
(1) Aflac Japan’s deferred policy acquisition costs increased .6% in yen during the three months ended March 31, 2023.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

See Note 6 of the Notes to the Consolidated Financial Statements for additional information on the Company's deferred policy acquisition costs.

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POLICY LIABILITIES
The following table presents policy liabilities by segment.
(In millions)March 31,
2023
December 31, 2022% Change      
Aflac Japan$88,944 $86,088 3.3 %(1)
Aflac U.S.11,542 11,187 3.2 
Corporate and other1,874 302 100.0 
Intercompany eliminations(2)
(2,427)(667)100.0 
Total$99,933 $96,910 3.1 %
(1) Aflac Japan’s policy liabilities increased 4.0% in yen during the three months ended March 31, 2023.
(2) Elimination entry necessary due to the internal reinsurance transaction with Aflac Re and to recapture of a portion of policy liabilities ceded externally as a result of the reinsurance retrocession transaction. See Note 8 of the Notes to the Consolidated Financial Statements.
Prior-year amounts have been adjusted for the adoption of accounting guidance on January 1, 2023 related to accounting for long-duration insurance contracts.

See Note 7 of the Notes to the Consolidated Financial Statements for additional information on the Company's policy liabilities.

BENEFIT PLANS

Aflac Japan and Aflac U.S. have various benefit plans. For additional information on the Company's Japanese and U.S. plans, see Note 12 of the accompanying Notes to the Consolidated Financial Statements and Note 14 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report.

POLICYHOLDER PROTECTION

Policyholder Protection Corporation

The Japanese insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. Legislation enacted regarding the framework of the Life Insurance Policyholder Protection Corporation (LIPPC) included government fiscal measures supporting the LIPPC. In March 2022, Japan's Diet passed legislation that extended the government's fiscal support of the LIPPC through March 2027. In March 2022, the LIPPC reached the required balance for the total life industry of ¥400 billion as specified by its Articles of Incorporation. As a result, additional contributions are not expected to be required unless the balance is reduced due to payments made by the LIPPC to the policyholders of insolvent insurers. Accordingly, Aflac Japan did not recognize an expense for LIPPC assessments for the three-month period ended March 31, 2023. Aflac Japan recognized an expense for LIPPC assessments of ¥.9 billion for the three-month period ended March 31, 2022.

Guaranty Fund Assessments

Under U.S. state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business. The amount of the guaranty fund assessment that an insurer is assessed is based on its proportionate share of premiums in that state. Guaranty fund assessments for the three-month periods ended March 31, 2023 and 2022 were immaterial.


As
LIQUIDITY AND CAPITAL RESOURCES

Liquidity refers to the ability to generate sufficient cash resources to meet the payment obligations of September 30, 2017,the Company. Capital refers to the long-term financial resources available to support the operations of the businesses, fund business growth and provide for an ability to withstand adverse circumstances. Financial leverage (leverage) refers to an investment strategy of using debt to increase the potential ROE. The Company targets and actively manages liquidity, capital and leverage in the context of a number of considerations, including:

business investment and growth needs
strategic growth objectives
financial flexibility and obligations
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capital support for hedging activity
a constantly evolving business and economic environment
a balanced approach to capital allocation and shareholder deployment.

The governance framework supporting liquidity, capital and leverage includes global senior management and board committees that review and approve all significant capital related decisions.

The Company's cash and cash equivalents include unrestricted cash on hand, money market instruments, and other debt instruments with a maturity of 90 days or less when purchased, all of which have minimal market, settlement or other risk exposure. The target minimum amount for the Parent Company’s cash and cash equivalents is approximately $1.8 billion to provide a capital buffer and liquidity support at the holding company. The Company remains committed to prudent liquidity and capital management. At March 31, 2023, the Company has estimatedheld $3.8 billion in cash and recognizedcash equivalents for stress conditions, which includes the impactParent Company's target minimum amount of its share of guaranty fund assessments resulting from the liquidation of a long-term care insurer. See Note 12 of the Notes to the Consolidated Financial Statements for further information on the assessment.$1.8 billion.

Off-Balance Sheet Arrangements

As of September 30, 2017, the Company had no material letters of credit, standby letters of credit, guarantees or standby repurchase obligations. See Note 15 of the Notes to the Consolidated Financial Statements in the 2016 Annual Report for information on material unconditional purchase obligations that are not recorded on the Company's balance sheet.


CAPITAL RESOURCES AND LIQUIDITY
Aflac providesJapan and Aflac U.S. generate cash flows from their operations and provide the primary sources of liquidity to the Parent Company through management fees and dividends, and management fees. The following table presentswith Aflac Japan being the amounts provided for the nine-month periods ending September 30.

Liquidity Provided by Aflac to Parent Company
(In millions)2017 2016 
Dividends declared or paid by Aflac$1,400
 $1,311
 
Management fees paid by Aflac219
 192
 

largest contributor. The primary uses of cash by the Parent Company are shareholder dividends, the repurchase of its common stock, and interest on its outstanding indebtedness and operating expenses.
The following table presents the amounts provided to the Parent Company's sourcesCompany for the three-month periods ended March 31.

Liquidity Provided by Subsidiaries to Parent Company
(In millions)20232022
Management fees paid by subsidiaries$38 $33 
Dividends declared or paid by subsidiaries780 514 

The following table details Aflac Japan remittances, which are included in the totals above, for the three-month periods ended March 31.
Aflac Japan Remittances
(In millions of dollars and billions of yen)20232022
Aflac Japan management fees paid to Parent Company$16 $15 
Aflac Japan dividends declared or paid to Parent Company (in dollars)505 339 
Aflac Japan dividends declared or paid to Parent Company (in yen)¥67.3 ¥41.1 

The Company intends to maintain higher than historical levels of liquidity and usescapital at the Parent Company for stress conditions and with the goals of addressing the Company’s hedge costs and related potential need for collateral and mitigating against long-term weakening of the Japanese yen. Further, the Company plans to continue to maintain a portfolio of unhedged U.S. dollar-denominated investments at Aflac Japan and to consider whether the amount of such investments should be increased or decreased relative to the Company’s view of economic equity surplus in Aflac Japan in light of potentially rising hedge costs and other factors. See the Hedging Activity subsection of this MD&A for more information.

The Company believes that its balance of cash are reasonably predictable and are not expectedcash equivalents and cash generated by operations will be sufficient to change materially in the future.satisfy both its short-term and long-term cash requirements and plans for cash, including material cash requirements from known contractual obligations and returning capital to shareholders through share repurchases and dividends. For additional information, see the Financing Activities subsectionLiquidity and Capital Resources section of thisItem 7. MD&A.&A in the 2022 Annual Report.


The ParentIn addition to cash and cash equivalents, the Company also accesses debt security marketsmaintains credit facilities, both intercompany and with external partners, and a number of other available tools to provide additional sources of capital.support liquidity needs on a global basis. In August 2016,September 2021, the Company filed a shelf registration statement with Japanese regulatory authorities that allows the Company to conduct public offerings of bonds in Japan, including yen-denominated Samurai notes, up to 200 billion yen or its equivalent

through August 2018. The shelf registration statement is for possible public offerings in Japan, but the bonds issued under the shelf may be transferred by the bondholders to U.S. persons in compliance with U.S. law. TheParent Company filed a shelf registration statement with the SEC in May 2015 that allows the Company to issue an indefinite amount of senior and subordinated debt securities, in one or more series, from time to time until May 2018.September 2024. The Company believes outside sources for additional debt and equity capital, if needed, will continue to be available. Additionally, as of March 31, 2023, the Parent Company and Aflac had four lines of credit with third parties and twelve intercompany lines of credit. The Company was in compliance with all of the covenants of its notes payable and lines of credit at March 31, 2023. For additional information, see Note 9 of the Notes to the Consolidated Financial Statements.

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As part of enterprise-wide capital management and optimization, the Company also utilizes the newly-created intercompany reinsurance platform to execute internal reinsurance transactions with Aflac Re. For additional information, see Note 8 of the Notes to the Consolidated Financial Statements.

The principal sources of cash for the Company's insurance operations are premiums and investment income. The primary uses of cash by the Company's insurance operations are investments, policy claims, commissions, operating expenses, income taxes and payments to the Parent Company for management fees and dividends. Both the sources and uses of cash are reasonably predictable.

When making an investment decision, the Company's first consideration is based on product needs. The Company's investment objectives provide for liquidity through the purchase of investment-grade debt securities. These objectives also take into account duration matching, and because of the long-term nature of the Company's business, the Company has adequate time to react to changing cash flow needs.

As a result of policyholder aging, claims payments are expected to gradually increase over the life of a policy. Therefore, future policy benefit reserves are accumulated in the early years of a policy and are designed to help fund future claims payments. The Company expect its future cash flows from premiums and its investment portfolio to be sufficient to meet its cash needs for benefits and expenses.

The Parent Company and Aflac have a 364-day uncommitted bilateral line of credit with a third party that provides for borrowings in the amount of $100 million. Borrowings will bear interest at the rate quoted by the bank and agreed upon at the time of making such loan and will have up to a three-month maturity period. There are no related facility fees, upfront expenses or financial covenant requirements. Borrowings under this credit agreement may be used for general corporate purposes. Borrowings under the financing agreement will mature no later than three months after the last drawdown date of October 14, 2017. As of September 30, 2017, the Company did not have any borrowings outstanding under its $100 million credit agreement.

The Parent Company has a three-year senior unsecured revolving credit facility agreement with a syndicate of financial institutions that provides for borrowings of up to 100.0 billion yen on a revolving basis. Borrowings bear interest at a rate per annum equal to the Tokyo interbank market rate (TIBOR) plus, at the Company's option, either (a) the applicable TIBOR margin during the period from the closing date to the commitment termination date or (b) the applicable TIBOR margin during the term out period. The applicable margin ranges between .35% and .75% during the period from the closing date to the commitment termination date and .70% and 1.50% during the term out period, depending on the Parent Company’s debt ratings as of the date of determination. In addition, the Parent Company is required to pay a facility fee on the commitments ranging between .30% and .50%, also based on the Parent Company’s debt ratings as of the date of determination. Borrowings under this credit agreement may be used for general corporate purposes, including a capital contingency plan for the operations of the Parent Company, and will expire on the earlier of (a) March 31, 2019, or (b) the date the commitments are terminated pursuant to an event of default, as such term is defined in the credit agreement. The credit facility requires compliance with certain financial covenants on a quarterly basis. As of September 30, 2017, the Company did not have any borrowings outstanding under its 100.0 billion yen revolving credit agreement.

The Parent Company and Aflac have a five-year senior unsecured revolving credit facility agreement with a syndicate of financial institutions that provides for borrowings of up to 55.0 billion yen or the equivalent of yen in U.S. dollars on a revolving basis. Borrowings bear interest at a rate per annum equal to, at the Company's option, either (a) a eurocurrency rate determined by reference to the London Interbank Offered Rate (LIBOR) for the interest period relevant to such borrowing adjusted for certain additional costs or (b) a base rate determined by reference to the highest of (1) the federal funds effective rate plus ½ of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate and (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin. The applicable margin ranges between .79% and 1.275% for eurocurrency rate borrowings and 0.0% and .275% for base rate borrowings, depending on the Parent Company’s debt ratings as of the date of determination. In addition, the Parent Company and Aflac are required to pay a facility fee on the commitments ranging between .085% and .225%, also based on the Parent Company’s debt ratings as of the date of determination. Borrowings under the amended and restated credit facility may be used for general corporate purposes, including a capital contingency plan for the operations of the Parent Company and Aflac. The amended and restated credit facility requires compliance with certain financial covenants on a quarterly basis and will expire on the earlier of (a) September 18, 2020, or (b) the date the commitments are terminated

pursuant to an event of default, as such term is defined in the credit agreement. As of September 30, 2017, the Company did not have any borrowings outstanding under its 55.0 billion yen revolving credit agreement.

The Parent Company and Aflac have an uncommitted bilateral line of credit with a third party that provides for borrowings in the amount of $50 million. Borrowings will bear interest at the rate quoted by the bank and agreed upon at the time of making such loan and will have up to a three-month maturity period. There are no related facility fees, upfront expenses or financial covenant requirements. Borrowings under this credit agreement may be used for general corporate purposes. As of September 30, 2017, the Company did not have any borrowings outstanding under its $50 million credit agreement.


The Company's consolidated financial statements convey its financing arrangements during the periods presented. The Company has not engaged in material intra-period short-term financings during the periods presented that are not otherwise reported in its balance sheet. Thesheet or disclosed therein. As of March 31, 2023, the Company was in compliance with all of the covenants of its notes payable and lineshad no material letters of credit, at September 30, 2017.standby letters of credit, guarantees or standby repurchase obligations. The Company has not entered into transactions involving the transfer of financial assets with an obligation to repurchase financial assets that have been accounted for as a sale under applicable accounting standards, including securities lending transactions. See Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3, and 4 of the Notes to the Consolidated Financial Statements in the 20162022 Annual Report for more information on the Company's securities lending and derivative activities. See Note 15 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for information on material unconditional purchase obligations that are not recorded on the Company's balance sheet. With the exception of disclosed activities in those referenced footnotes and the Risk Factors in the 2022 Annual Report entitled, "The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and "Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity," the Company doesis not have a knownaware of any trend, demand, commitment, event or uncertainty that would reasonably result in its liquidity increasing or decreasing by a material amount. The Company's cash and cash equivalents include unrestricted cash on hand, money market instruments, and other debt instruments with a maturity of 90 days or less when purchased, all of which has minimal market, settlement or other risk exposure.
Consolidated Cash Flows

The Company consistently generates positive cash flows from operations, and has the ability to adjust cash flow management from other sources of liquidity including reinvestment cash flows and selling investments in order to meet short-term cash needs.

The Company translates cash flows for Aflac Japan’s yen-denominated items into U.S. dollars using weighted-average exchange rates. In periods when the yen weakens, translating yen into dollars causes fewer dollars to be reported. When the yen strengthens, translating yen into dollars causes more dollars to be reported.

The following table summarizes consolidated cash flows by activity for the nine-monththree-month periods ended September 30.March 31.
(In millions)20232022
Operating activities$708 $1,260 
Investing activities105 (1,210)
Financing activities(933)(737)
Exchange effect on cash and cash equivalents(14)(89)
Net change in cash and cash equivalents$(134)$(776)
(In millions)2017 2016 
Operating activities$4,596
 $4,120
 
Investing activities(2,887) (2,638) 
Financing activities(1,613) (835) 
Exchange effect on cash and cash equivalents(28) 273
 
Net change in cash and cash equivalents$68
 $920
 

Operating Activities

The following table summarizesprincipal cash inflows for the Company's insurance activities come from insurance premiums and investment income. The principal cash outflows are the result of policy claims, operating expenses, income tax, as well as interest expense. As a result of policyholder aging, claims payments are expected to gradually increase over the life of a policy. Therefore, future policy benefit reserves are accumulated in the early years of a policy and are designed to help fund future claims payments.

The Company expects its future cash flows by sourcefrom premiums and investment portfolios to be sufficient to meet its cash needs for the nine-month periods ended September 30. benefits and expenses.
(In millions)2017 2016 
Aflac Japan$3,657
 $3,081
 
Aflac U.S. and other operations939
 1,039
 
Total$4,596
 $4,120
 

Investing Activities
Operating cash flow is
The Company's investment objectives provide for liquidity primarily used tothrough the purchase of publicly traded investment-grade debt securities and loan receivables to meet future policy obligations. The following table summarizes investing cash flows by source for the nine-month periods ended September 30.
(In millions)2017 2016 
Aflac Japan$(2,212) $(1,396) 
Aflac U.S. and other operations(675) (1,242) 
Total$(2,887) $(2,638) 

securities. Prudent portfolio management dictates that the Company attempts to match the duration of its assets with the duration of its liabilities. Currently, when the Company's fixed-maturity securities and perpetualfixed maturity securities mature, the proceeds may be reinvested at a yield below that required for the accretion of policy benefit liabilities on policies issued in earlier years. However, the long-term nature of the Company's business and its strong cash flows provide the Company with the ability to minimize the effect of mismatched durations and/or yields identified by various asset adequacy analyses. From time to time or when market opportunities arise, the Company disposes of selected fixed-maturity and perpetualfixed maturity securities that are available for
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sale to improve the duration matching of its assets and liabilities, improve future investment yields, and/or re-balance its portfolio. As a result, dispositions before maturity can vary significantly from year to year. Dispositions before maturity were approximately 3%

As part of its overall corporate strategy, the Company has committed $400 million to Aflac Ventures, LLC (Aflac Ventures), as opportunities emerge. Aflac Ventures is a subsidiary of Aflac Global Ventures, LLC (Aflac Global Ventures) which is reported in Corporate and 1%other. The central mission of Aflac Global Ventures is to support the organic growth and business development needs of Aflac Japan and Aflac U.S. with an emphasis on digital applications designed to improve the customer experience, gain efficiencies, and develop new markets in an effort to enhance and defend long-term shareholder value. Investments are included in equity securities or the other investments line in the consolidated balance sheets.

As part of an arrangement with Federal Home Loan Bank of Atlanta (FHLB), Aflac U.S. obtains low-cost funding from FHLB supported by acceptable forms of collateral pledged by Aflac U.S. In the first three months of 2023, Aflac U.S. borrowed and repaid $37 million under this program. As of March 31, 2023, Aflac U.S. had outstanding borrowings of $591 million reported in its balance sheet.

See Note 3 of the year-to-date averageNotes to the Consolidated Financial Statements for details on certain investment portfolio of fixed maturities and perpetual securities available for sale during the nine-month periods ended September 30, 2017 and 2016, respectively.commitments.


Financing Activities


Consolidated cash used byCash flows from financing activities was $1.6 billion in the first nine monthsconsist primarily of 2017, compared with consolidated cash used by financing activities of $835 million for the same period of 2016.share repurchases, dividends to shareholders and from time to time debt issuances and redemptions.

In January 2017, the Parent Company issued 60.0 billion yen of senior notes through a public debt offering under its U.S. shelf registration statement. The notes bear interest at a fixed rate of .932% per annum, payable semi-annually, and have a 10-year maturity. These notes may only be redeemed before maturity, in whole but not in part, upon the occurrence of certain changes affecting U.S. taxation, as specified in the indenture governing the terms of the issuance.

In February 2017, the Parent Company extinguished $650 million of 2.65% senior notes upon their maturity.


Cash returned to shareholders through dividends and treasury stock purchases and dividends was $1.5 billion$948 million during the nine-monththree-month period ended September 30, 2017,March 31, 2023, compared with $1.7 billion$750 million during the nine-monththree-month period ended September 30, 2016.March 31, 2022.

The Company was in compliance with all of the covenants of its notes payable and lines of credit at September 30, 2017.


The following tables present a summary of treasury stock activity during the nine-monththree-month periods ended September 30.March 31.


Treasury Stock Purchased
(In millions of dollars and thousands of shares)20232022
Treasury stock purchases$700 $500 
Number of shares purchased:
Share repurchase program10,348 8,007 
Other347 343 
   Total shares purchased10,695 8,350 
(In millions of dollars and thousands of shares)2017 2016 
Treasury stock purchases$1,053
 $1,222
 
Number of shares purchased:    
Open market13,898
 18,774
 
Other435
 329
 
   Total shares purchased14,333
 19,103
 


Treasury Stock Issued
(In millions of dollars and thousands of shares)20232022
Stock issued from treasury:
   Cash financing$2 $
   Noncash financing18 17 
   Total stock issued from treasury$20 $26 
Number of shares issued458 526 
(In millions of dollars and thousands of shares)2017 2016 
Stock issued from treasury:    
   Cash financing$23
 $37
 
   Noncash financing45
 47
 
   Total stock issued from treasury$68
 $84
 
Number of shares issued978
 1,483
 


During the first nine months of 2017, the Company repurchased 13.9 million shares of its common stock for $1.0 billion as part of its share repurchase program. As of September 30, 2017,March 31, 2023, a remaining balance of 52.9106.3 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors. The Company currently plans to repurchase a total of $1.3 billion to $1.5 billion of its common stock in 2017, assuming stable capital conditions and absent compelling alternatives.



Cash dividends paid to shareholders were $.43$.42 per share in the thirdfirst quarter of 2017,2023, compared with $.41$.40 per share in the thirdfirst quarter of 2016.2022. The following table presents the dividend activity for the nine-monththree-month periods ended September 30.March 31.


(In millions)20232022
Dividends paid in cash$248 $250 
Dividends through issuance of treasury shares9 
Total dividends to shareholders$257 $259 
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(In millions)2017 2016 
Dividends paid in cash$491
 $492
 
Dividends through issuance of treasury shares22
 19
 
Total dividends to shareholders$513
 $511
 


In October 2017,April 2023, the board of directors declared the fourthsecond quarter cash dividend of $.45$.42 per share, an increase of 4.7%5.0% compared with the same period in 2016.2022. The dividend is payable on DecemberJune 1, 2017,2023 to shareholders of record at the close of business on November 15, 2017.May 17, 2023.


Regulatory Restrictions


Aflac Japan

Aflac Japan is required to meet certain financial criteria as governed by Japanese corporate law in order to provide dividends to the Parent Company. Under these criteria, dividend capacity at the Japan subsidiary is basically defined as total equity excluding common stock and CAICcapital reserves (representing statutorily required amounts in Japan) but reduced for net after-tax unrealized losses on available-for-sale securities. These dividend capacity requirements are domiciledgenerally aligned with the SMR. Japan's Financial Services Agency (FSA) maintains its own solvency standard which is quantified through the SMR. Aflac Japan's SMR is sensitive to interest rate, credit spread, and foreign exchange rate changes; therefore, the Company continues to evaluate alternatives for reducing this sensitivity, including the reduction of subsidiary dividends paid to the Parent Company and Parent Company capital contributions. In the event of a rapid change in Nebraskamarket risk conditions causing SMR to decline, the Company has one senior unsecured revolving credit facility in the amount of ¥100 billion and area committed reinsurance facility in the amount of approximately ¥120 billion as a capital contingency plan. Additionally, subject to market conditions, the Company expects that it could take action to enter into derivatives on unhedged U.S. dollar-denominated investments with foreign currency options or forwards or execute additional internal reinsurance transactions with Aflac Re. See Notes 8 and 9 of the Notes to the Consolidated Financial Statements for additional information.

The Company has already undertaken various measures to mitigate the sensitivity of Aflac Japan's SMR. For example, the Company employs policy reserve matching (PRM) investment strategies, which is a Japan-specific accounting treatment that reduces SMR interest rate sensitivity since PRM-designated investments are carried at amortized cost consistent with corresponding liabilities. In order for a PRM-designated asset to be held at amortized cost, there are certain criteria that must be maintained. The primary criterion relates to maintaining the duration of designated assets and liabilities within a specified tolerance range. If the duration difference is not maintained within the specified range without rebalancing, then a certain portion of the assets must be re-classified as available for sale and held at fair value with any associated unrealized gain or loss recorded in surplus. To rebalance, assets may need to be sold in order to maintain the duration with the specified range, resulting in realizing a gain or loss from the sale. For U.S. GAAP, PRM investments are categorized as available for sale. The Company also uses foreign currency derivatives to hedge a portion of its U.S. dollar-denominated investments. See Notes 3, 4 and 8 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report for additional information on the Company's investment strategies, hedging activities, and reinsurance, respectively.

As of March 31, 2023, Aflac Japan's SMR remains high and reflects a strong capital and surplus position. The Company is committed to maintaining strong capital levels, consistent with maintaining current insurance financial strength and credit ratings.

The FSA is considering the introduction of an economic value-based solvency regime based on the Insurance Capital Standards (ICS) for insurance companies in Japan. The FSA continues to conduct field testing with insurance companies in Japan for the purpose of investigating the impact of the introduction of such regulations. Final specifications are expected to be decided in 2024, and a new capital regime to replace the current solvency regime is expected to be introduced in 2025.

Aflac U.S.

A life insurance company’s statutory capital and surplus is determined according to rules prescribed by the National Association of Insurance Commissioners (NAIC), as modified by the insurance department in the insurance company’s state of domicile. Statutory accounting rules are different from U.S. GAAP and are intended to emphasize policyholder protection and company solvency. Similar laws apply in New York, the domiciliary jurisdiction of the Parent Company's other insurance subsidiary, Aflac New York. The continued long-term growth of the Company's business may require increases in the statutory capital and surplus of its insurance operations. Aflac’sThe Company's insurance operations may secure additional statutory capital through various sources, such as internally generated statutory earnings, equityreduced dividends paid to the Parent Company, capital contributions by the Parent Company from funds generated through debt or equity offerings, or reinsurance transactions. The NAIC’s risk-basedRisk-based capital (RBC) formula is used by insurance regulators to help identify inadequately capitalized insurance companies. The RBC formula quantifies insurance risk, business risk, asset risk and
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interest rate risk by weighing the types and mixtures of risks inherent in the insurer’s operations. As of September 30, 2017, Aflac’sMarch 31, 2023, Aflac U.S.'s combined RBC ratio remains high and reflects a strong capital and surplus position.

Aflac, CAIC and TOIC are domiciled in Nebraska and are subject to its regulations. The maximum amount of dividends that can be paid to the Parent Company by Aflac, CAIC and TOIC without prior approval of Nebraska's director of insurance is the greater of the net income from operations, which excludes net realized investment gains, for the previous year determined under statutory accounting principles, or 10% of statutory capital and surplus as of the previous year-end. Dividends declared by Aflac during 20172023 in excess of $2.8$1.1 billion would be considered extraordinary and require such approval. Similar laws apply in New York, the domiciliary jurisdiction of Aflac New York.


In additionPrivacy and Cybersecurity Governance

The Company’s Board of Directors has adopted an information security policy directing management to limitationsestablish and restrictions imposed by U.S. insurance regulators, Japan’s Financial Services Agency (FSA) may not allow profit repatriationsoperate a global information security program with the goals of monitoring existing and emerging threats and ensuring that the Company’s information assets and data, and the data of its customers, are appropriately protected from Aflac Japan ifloss or theft. The Board has delegated oversight of the transfers would cause Aflac JapanCompany’s information security program to lack sufficient financial strengththe Audit and Risk Committee. The Company’s senior officers, including its Global Chief Information Security Officer, are responsible for the protection of policyholders. The FSA maintains its own solvency standard which is quantified through the solvency margin ratio (SMR). Aflac Japan's SMR is sensitive to interest rate, credit spread, and foreign exchange rate changes, therefore the Company continues to evaluate alternatives for reducing this sensitivity.

The Company has undertaken various measures to mitigate the sensitivity of Aflac Japan's SMR and the risk of decline in Aflac Japan's repatriation or dividend capacity, which will become a more important factor upon completing the Company's Japan branch conversion to subsidiary. For example, Aflac Japan employs policy reserve matching (PRM) investment classification as part of its ALM strategies. PRM is a Japan-specific accounting treatment that reduces SMR interest rate sensitivity since PRM-designated investments are carried at amortized cost consistent with corresponding liabilities. For U.S. GAAP, PRM investments are categorized as available-for-sale. On a Japanese GAAP basis, Aflac Japan’s total investments had a total cost or amortized cost of 10.81 trillion yen, including available-for-sale investments of 3.46 trillion yen with a net unrealized gain of 299.4 billion yen as of June 30, 2017, the most recently reported Japanese GAAP financial results. If these investments changed in value to a net unrealized loss position, the repatriation or dividend capacity for Aflac Japan could be negatively affected. By increasing the investment portfolio’s allocation to PRM-designated investments and reducing the allocation to available-for-sale investments on a Japanese GAAP basis, Aflac Japan has reduced the risk of its SMR and repatriation or dividend capacity being negatively impacted. The Company also uses foreign currency derivatives to hedge a portion of Aflac Japan's U.S. dollar-denominated investments, which reduces the volatility in SMR and unrealized gains and losses caused by currency exchange rates when reporting these assets in yen for Aflac Japan regulatory reporting. (See Notes 3, 4 and 8operation of the Notesglobal information security program and communicate quarterly with the Audit and Risk Committee on the program, including with respect to the Consolidated Financial Statementsstate of the program, compliance with applicable regulations, current and evolving threats, and recommendations for changes in the 2016 Annual Reportinformation security program. The global information security program also includes a cybersecurity incident response plan that is designed to provide a management framework across Company functions for additional information on the Company's investment strategies, hedging activities,a coordinated assessment and reinsurance, respectively.) In the event ofresponse to potential security incidents. This framework establishes a rapid change in market risk conditions causing SMRprotocol to decline, the Company has two senior unsecured revolving credit facilities in the amounts of 100 billion yen and 55 billion yen, respectively, and a committed reinsurance facility in the amount of approximately 110 billion yen as a capital contingency

plan. (See Notes 8 and 9 of the Notesreport certain incidents to the Consolidated Financial Statements in the 2016 Annual Report for additional information on the Company's capital contingency plan.)

As of September 30, 2017, Aflac Japan's SMR remains highGlobal Chief Information Security Officer and reflects a strong capital position. The FSA has been conducting field testingother senior officers, with the insurance industry concerninggoal of timely assessing such incidents, determining applicable disclosure requirements and communicating with the introduction of an economic value-based solvency regime.Audit and Risk Committee. The field testing will assistincident response plan directs the FSA in determining if an economic value-based solvency regime in Japan will be appropriate for the insurance industry.

Payments are made from Aflac Japanexecutive officers to report certain incidents immediately and directly to the Parent Company for management fees and to Aflac U.S. for allocated expenses and remittances of earnings. The following table details Aflac Japan remittances for the nine-month periods ended September 30.Lead Non-Management Director.
Aflac Japan Remittances
Other
(In millions of dollars and billions of yen)2017 2016 
Aflac Japan management fees paid to Parent Company$73
 $53
 
Expenses allocated to Aflac Japan (in dollars)80
 80
 
Aflac Japan profit remittances to Aflac U.S. (in dollars)933
 1,084
 
Aflac Japan profit remittances to Aflac U.S. (in yen)104.6
 115.2
 
The Company had foreign exchange forwards and options as part of a hedge on 21.9 billion yen of profit repatriation received from Aflac Japan in September 2017, resulting in $2 million more funds when the yen were exchanged into dollars. The Company had foreign exchange forwards and options as part of a hedge on 45.0 billion yen of profit repatriation received from Aflac Japan in July 2017, resulting in $5 million less funds received when the yen were exchanged into dollars. Provided that capital conditions remain stable, the Company believes its financial strength in Japan positions Aflac Japan to repatriate in the range of 120.0 billion yen to 140.0 billion yen to the U.S. for the full year 2017.
For additional information on regulatory restrictions on dividends, profit repatriationsregarding commitments and other transfers,contingent liabilities, see Note 13 of the Notes to the Consolidated Financial Statements and the Regulatory Restrictions subsection of MD&A, both in the 2016 Annual Report.
Other

For information regarding commitments and contingent liabilities, see Note 12 of the Notes to the Consolidated Financial Statements.
Additional Information


Investors should note that the Company announces material financial information in its SEC filings, press releases and public conference calls. In accordance with SEC guidance, the Company may also use the Investor Relations section of the Company's website (http://investors.aflac.com) to communicate with investors about the Company. It is possible that the financial and other information the Company posts there could be deemed to be material information. The information on the Company's website is not part of this document. Further, the Company's references to website URLs are intended to be inactive textual references only.


Item 3.Quantitative and Qualitative Disclosures about Market Risk

CRITICAL ACCOUNTING ESTIMATES

The Company prepares its financial statements in accordance with U.S. GAAP. These principles are established primarily by the Financial Accounting Standards Board (FASB). In this MD&A, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards Codification (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The estimates that the Company deems to be most critical to an understanding of its results of operations and financial condition are those related to the valuation of investments and derivatives, DAC, liabilities for future policy benefits, and income taxes. The preparation and evaluation of these critical accounting estimates involve the use of various assumptions developed from management’s analyses and judgments. Calculations of DAC and the liability for future policy benefits require the use of estimates based on actuarial valuation techniques. The application of these critical accounting estimates determines the values at which 93% of the Company's assets and 80% of its liabilities are reported as of March 31, 2023, and thus has a direct effect on net earnings and shareholders’ equity. Subsequent experience or use of other assumptions could produce significantly different results.

On January 1, 2023, the Company adopted Accounting Standards Update (ASU) 2018-12, Financial Services - Insurance: Targeted Improvements to the Accounting for Long-Duration Contracts (LDTI). The update significantly changes how insurers account for long-duration contracts and amends existing recognition, measurement, presentation, and disclosure requirements applicable to the Company related to liabilities for future policy benefits and DAC. As part of this adoption,
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the Company measures together all payments under an insurance contract including future expected claims and unpaid policy claims and related expenses, as an integrated reserve. This resulted in unpaid policy claims on long-duration insurance contracts and accrued claim adjustment expenses that were presented separately in the Company’s consolidated balance sheet pre-adoption to now be presented as part of liabilities for future policy benefits.

For additional information, see Note 1 of the Notes to the Consolidated Financial Statements in this document and in the 2022 Annual Report.

Deferred Policy Acquisition Costs

Amortization of DAC is computed using the same contract groupings (also referred to as cohorts) and mortality and termination assumptions that are used in computing the liability for future policy benefits, and these assumptions are reviewed and updated at least annually. The effects of changes in assumptions are recognized prospectively over the remaining contract term as a revision of future amortization pattern, while current period amortization is calculated based on the actual experience during the quarter. For additional information, see Note 6 of the Notes to the Consolidated Financial Statements.

Future Policy Benefits

The Company's liabilities for future policy benefits are determined in accordance with applicable guidelines as defined under U.S. GAAP and Actuarial Standards of Practice and represent claims that are expected to occur in the future and already incurred claims (which represent claims that have been incurred and are in the process of payment as well as an estimate of those claims that have been incurred but have not yet been reported to the Company) and are measured using the net level premium method. Future policy benefits are calculated using assumptions and estimates including mortality, morbidity, termination (also referred to as lapses), expense, and discount rates. The assumptions and estimates that the Company uses depend on its judgment regarding the likelihood of future events and are inherently uncertain.

Cash flow assumptions (mortality, morbidity, and termination) are established at policy inception and are evaluated each quarter to determine if an update is needed. To facilitate a more detailed review of cash flow assumptions, experience studies are performed annually during the third quarter. Changes in cash flow assumptions are recognized in reserve remeasurement (gains) losses in the consolidated statement of earnings. Expense assumptions are established at policy inception and are not updated. Actual experience is reflected in the calculation of future policy benefits each quarter, and changes in the liability due to actual experience are recognized in reserve remeasurement (gains) losses in the consolidated statement of earnings.

Discount rates used to calculate net premiums are locked in at policy inception and represent the basis to recognize interest expense in the consolidated statement of earnings. Discount rates used to measure the carrying value of liability for future policy benefits in the consolidated balance sheet are updated each reporting period, and the differences between the liability balances calculated using the locked-in discount rates and the updated discount rates are recognized in other comprehensive income (loss) (OCI). The discount rate methodology is designed to prioritize observable inputs based on market data available in the local debt markets where the respective policies were issued in the currency in which the policies are denominated. For the discount rates applicable to tenors for which the single-A debt market is not liquid or there is little or no observable market data, the Company uses various estimation techniques consistent with the fair value guidance in ASC 820, which include, but are not limited to: (i) for tenors where there is less observable market data and/or the observable market data is available for similar instruments, estimating tenor-specific single-A credit spreads and applying them to risk-free government rates; (ii) for tenors where there is very limited or no observable single-A or similar market data, interpolation and extrapolation techniques.

Upon adoption, if interest rates increased by 100 basis points the Company's FPB balance as of December 31, 2022, would decrease by $13.3 billion, and if interest rates decreased by 100 basis points the Company's FPB balance as of December 31, 2022 would increase by $10.4 billion.

See Note 7 of the Notes to the Consolidated Financial Statements for details of future policy benefits activity.

There have been no other changes in the items the Company has identified as critical accounting estimates during the three-month period ended March 31, 2023. For additional information, see the Critical Accounting Estimates section of Item 7. MD&A included in the 2022 Annual Report.

106


New Accounting Pronouncements

On January 1, 2023, the Company adopted LDTI employing a modified retrospective transition method, which requires the amended guidance be applied as of the beginning of the earliest period presented beginning on the January 1, 2021 transition date (Transition Date). The Transition Date impact from adoption resulted in a decrease in AOCI of approximately $18.6 billion and a decrease in retained earnings of approximately $0.3 billion.

For information on new accounting pronouncements and the impact, if any, on the Company's financial position or results of operations, see Note 1 of the Notes to the Consolidated Financial Statements.

Item 3.Quantitative and Qualitative Disclosures about Market Risk

The Company is exposed primarily to the following types of market risks: currency risk, interest rate risk, credit risk and equity risk. The Company regularly monitors its market risks and uses a variety of strategies to manage its exposure to these market risks. A description of the Company's market risk exposures may be found under “Quantitative and Qualitative Disclosures About Market Risk” in Part II, Item 7A, of the 20162022 Annual Report. There have been no material changes to the Company's market risk exposures from the market risk exposures previously disclosed in the 20162022 Annual Report.



Item 4.Controls and Procedures

Item 4.Controls and Procedures

Disclosure Controls and Procedures


The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)Exchange Act)) as of the end of the period covered by this quarterly report (the “Evaluation Date”)Evaluation Date). Based on such evaluation, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that, as of the Evaluation Date, the Company’s disclosure controls and procedures are effective.


Changes in Internal Control Over Financial Reporting


ThereDuring the first fiscal quarter of 2023, the Company executed internal controls associated with new processes supporting the implementation of Accounting Standards Update (ASU) 2018-12 for long-duration insurance contracts (LDTI), which the Company adopted on January 1, 2023 using a modified retrospective method. For additional information, see Note 1 of the accompanying Notes to the Consolidated Financial Statements and Note 1 of the Notes to the Consolidated Financial Statements in the 2022 Annual Report.

Except for the change in controls over the Company's adoption of LDTI, there have not been any changes in the Company’s internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) during the thirdfirst fiscal quarter of 20172023 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.




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PART II. OTHER INFORMATION

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds
Item 2.Unregistered Sales of Equity Securities and Use of Proceeds
Issuer Purchases of Equity Securities
During the first ninethree months of 2017,2023, the Parent Company repurchased shares of its common stock as follows:
PeriodTotal
Number of
Shares
Purchased
Average
Price Paid
Per Share
Total
Number
of Shares
Purchased
as Part of
Publicly
Announced
Plans or
Programs
Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs 
January 1 - January 312,440,300 $72.15 2,440,300 114,201,523 
February 1 - February 283,542,907 69.48 3,200,100 111,001,423 
March 1 - March 314,711,768 64.20 4,707,900 106,293,523 
Total10,694,975 (1)$67.76 10,348,300 106,293,523 (2)
PeriodTotal
Number of
Shares
Purchased
 Average
Price Paid
Per Share
 Total
Number
of Shares
Purchased
as Part of
Publicly
Announced
Plans or
Programs
 Maximum    
Number of    
Shares that    
May Yet Be    
Purchased    
Under the    
Plans or    
Programs    
 
January 1 - January 313,819,299
 $69.94
 3,819,299
 22,934,155
 
February 1 - February 281,988,420
 70.03
 1,853,000
 21,081,155
 
March 1 - March 312,825,614
 72.12
 2,821,009
 18,260,146
 
April 1 - April 301,764,523
 73.70
 1,764,523
 16,495,623
 
May 1 - May 31501
 74.84
 0
 16,495,623
 
June 1  - June 30902,308
 78.08
 896,795
 15,598,828
 
July 1 - July 311,066,100
 77.88
 1,066,100
 14,532,728
 
August 1 - August 311,356,142
 80.95
 1,356,000
 53,176,728
 
September 1  - September 30325,741
 82.04
 321,200
 52,855,528
 
Total14,048,648
(2) 
$73.33
 13,897,926
 52,855,528
(1) 
(1)The total remaining shares available for purchase at September 30, 2017, consisted of 12,855,528 shares related to a 40,000,000 share repurchase authorization by the board of directors announced in 2015 and 40,000,000 shares related to a 40,000,000 share repurchase authorization by the board of directors announced in August 2017.
(2)During the first ninethree months of 2017, 150,7222023, 346,675 shares were purchased in connection with income tax withholding obligations related to the vesting of restricted-share-based awards during the period.

(2) The total remaining shares available for purchase at March 31, 2023, consisted of 6,293,523 shares related to a 100,000,000 share repurchase authorization by the board of directors announced in August 2020 and 100,000,000 shares related to a 100,000,000 share repurchase authorization by the board of directors announced in November 2022.




108


Item 6.    Exhibits
Item 6.Exhibits
(a)EXHIBIT INDEX
-Articles of Incorporation, as amended – incorporated by reference from Form 10-Q for June 30, 2008, Exhibit 3.0 (File No. 001-07434).3.0.
-Bylaws of the Corporation, as amended and restated – incorporated by reference from Form 8-K dated November 10, 2015,February 11, 2022, Exhibit 3.1 (File No. 001-07434).3.1.
4.0-There are no instruments with respect to long-term debt not being registered in which the total amount of securities authorized exceeds 10% of the total assets of Aflac Incorporated and its subsidiaries on a consolidated basis. We agree to furnish a copy of any long-term debt instrument to the Securities and Exchange Commission upon request.
-Indenture, dated as of May 21, 2009, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee2023 Management Incentive Plan – incorporated by reference from Form 8-K dated May 21, 2009, Exhibit 4.1 (File No. 001-07434).
-Second Supplemental Indenture, dated as of December 17, 2009, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 6.900% Senior Note due 2039) – incorporated by reference from Form 8-K dated December 14, 2009, Exhibit 4.1 (File No. 001-07434).
-Third Supplemental Indenture, dated as of August 9, 2010, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 6.45% Senior Note due 2040) - incorporated by reference from Form 8-K dated August 4, 2010, Exhibit 4.1 (File No. 001-07434).
-Fifth Supplemental Indenture, dated as of February 10, 2012, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 2.65% Senior Note due 2017) - incorporated by reference from Form 8-K dated February 8, 2012,2023, Exhibit 4.1 (File No. 001-07434).
-Sixth Supplemental Indenture, dated as of February 10, 2012, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 4.00% Senior Note due 2022) - incorporated by reference from Form 8-K dated February 8, 2012, Exhibit 4.2 (File No. 001-07434).
-Seventh Supplemental Indenture, dated as of July 31, 2012, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 2.65% Senior Note due 2017) - incorporated by reference from Form 8-K dated July 27, 2012, Exhibit 4.1 (File No. 001-07434).
-Eighth Supplemental Indenture, dated as of June 10, 2013, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 3.625% Senior Note due 2023) - incorporated by reference from Form 8-K dated June 10, 2013, Exhibit 4.1 (File No. 001-07434).
-Ninth Supplemental Indenture, dated as of November 7, 2014, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 3.625% Senior Note due 2024) - incorporated by reference from Form 8-K dated November 4, 2014, Exhibit 4.1 (File No. 001-07434).
-Tenth Supplemental Indenture, dated as of March 12, 2015, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 2.40% Senior Note due 2020) - incorporated by reference from Form 8-K dated March 9, 2015, Exhibit 4.1 (File No. 001-07434).
-Eleventh Supplemental Indenture, dated as of March 12, 2015, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 3.25% Senior Note due 2025) - incorporated by reference from Form 8-K dated March 9, 2015, Exhibit 4.2 (File No. 001-07434).
-Twelfth Supplemental Indenture, dated as of September 19, 2016, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 2.875% Senior Note due 2026) - incorporated by reference from Form 8-K dated September 19, 2016, Exhibit 4.1 (File No. 001-07434).
-Thirteenth Supplemental Indenture, dated as of September 19, 2016, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 4.000% Senior Note due 2046) - incorporated by reference from Form 8-K dated September 19, 2016, Exhibit 4.2 (File No. 001-07434).
-Fourteenth Supplemental Indenture, dated as of January 25, 2017, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of .932% Senior Note due 2027) – incorporated by reference from Form 8-K dated January 25, 2017, Exhibit 4.1 (File No. 001-07434).

10.1.
Aflac Incorporated Executive Officer Severance Plan
-Subordinated Indenture, dated as of September 26, 2012, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee - incorporated by reference from Form 8-K dated September 26, 2012, Exhibit 4.1 (File No. 001-07434).
-First Supplemental Indenture, dated as of September 26, 2012, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 5.50% Subordinated Debenture due 2052) - incorporated by reference from Form 8-K dated September 26, 2012, Exhibit 4.2 (File No. 001-07434).
-Second Supplemental Indenture, dated as of October 23, 2017, between Aflac Incorporated and The Bank of New York Mellon Trust Company, N.A., as trustee (including the form of 2.108% Subordinated Debenture due 2047) - incorporated by reference from Form 8-K dated October 23, 2017, Exhibit 4.1 (File No. 001-07434).
-Aflac Separation Agreement with Paul S. Amos II, dated June 6, 2017 - incorporated by reference from Form 10-Q dated August 3, 2017, Exhibit 10.40 (File No. 001-07434).
-Letter from KPMG LLP regarding unaudited interim financial information.
-Certification of CEO dated November 2, 2017,May 1, 2023, required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934.
-Certification of CFO dated November 2, 2017,May 1, 2023, required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934.
-Certification of CEO and CFO dated November 2, 2017,May 1, 2023, pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS-
XBRL Instance Document.(1)
Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH-Inline XBRL Taxonomy Extension Schema.
101.CAL-Inline XBRL Taxonomy Extension Calculation Linkbase.
101.DEF-Inline XBRL Taxonomy Extension Definition Linkbase.
101.LAB-Inline XBRL Taxonomy Extension Label Linkbase.
101.PRE-Inline XBRL Taxonomy Extension Presentation Linkbase.
104-Cover Page Interactive Data File - formatted as Inline XBRL and contained in Exhibit 101.
(1)
*
Includes the following materials contained in this Quarterly Report on Form 10-Q for the period ended September 30, 2017, formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Statements of Earnings, (ii) Consolidated Statements of Comprehensive Income (Loss), (iii) Consolidated Balance Sheets, (iv) Consolidated Statements of Shareholders’ Equity, (v) Consolidated Statements of Cash Flows, (vi) Notes to the Consolidated Financial Statements
*Management contract or compensatory plan or arrangement required to be filed as an exhibit pursuant to Item 6 of this report
109



Glossary of Selected Terms

Throughout this Quarterly Report on Form 10-Q, the Company may use certain performance metrics and other terms which are defined below.

Adjusted Net Investment Income - Net Investment Income adjusted for i) amortized hedge cost/income related to foreign currency exposure management strategies and certain derivative activity and ii) net interest cash flows from foreign currency and interest rate derivatives associated with certain investment strategies, which are reclassified from net investment gains and (losses) to net investment income. The Company considers adjusted net investment income important because it provides a more comprehensive understanding of the costs and income associated with the Company's investments and related hedging strategies. The metric is used in segment reporting as a component of segment profitability.

Affiliated Corporate Agency – Agency in Japan directly affiliated with a specific corporation that sells insurance policies primarily to its employees.

Annualized Premiums in Forcethe amount of gross premium that a policyholder must pay over a full year in order to keep coverage. The growth of net earned premiums (defined below) is directly affected by the change in premiums in force and by the change in weighted-average yen/dollar exchange rates.

Average Weekly ProducerThe total number of writing agents who have produced greater than $0.00 during the production week - excluding any manual adjustments divided by the number of weeks in the time period. The Company believes this metric allows sales management to monitor progress and needs, as well as serve as a leading indicator of future production capacity.

Capital Buffer Established dollar amount of liquidity at the Parent Company reserved for injecting capital into the insurance entities or general liquidity support for general expenses at the Parent Company. Currently, the capital buffer is $1.0 billion and is part of the $1.8 billion target minimum balance at the Parent Company.

Earnings Per Basic Share – Net earnings divided by weighted-average number of shares outstanding for the period.

Earnings Per Diluted Share – Net earnings divided by the weighted-average number of shares outstanding for the period plus the weighted-average shares for the dilutive effect of share-based awards outstanding.

Group Insurance Insurance issued to a group, such as an employer or trade association, that covers
employees or association members and their dependents through certificates of coverage.

Individual Insurance – Insurance issued to an individual with the policy designed to cover that person and his or her dependents.

In force PoliciesA count of policies that are active contracts at the end of a period.

Liquidity Support – Internally defined and established dollar amount of liquidity reserved for supporting potential collateral and settlements of derivatives at the Parent Company. Currently, the liquidity support is $0.8 billion and is part of the $1.8 billion target minimum balance at the Parent Company.

Net Investment Income – The income derived from interest and dividends on invested assets, after deducting investment expenses.

Net Earned Premiums – is a financial measure that appears on the Company's Consolidated Statements of Earnings and in its segment reporting. This measure reflects collected or due premiums that have been earned ratably on policies in force during the reporting period, reduced by premiums that have been ceded to third parties and increased by premiums assumed through reinsurance.

New Annualized Premium Sales – (sometimes referred to as new sales or sales) An operating measure that is not reflected on the Company's financial statements. New annualized premium sales generally represent annual premiums on policies and riders the Company sold and incremental increases from policy conversions that would be collected over a 12-month period assuming the policies remain in force for that entire period. For Aflac Japan, new annualized premium sales are determined by applications submitted during the reporting period. For Aflac U.S., new annualized premium sales are determined by applications. that are issued during the reporting period. Policy conversions are defined as the positive difference in the annualized premium when a policy upgrades in the current reporting period.

New Money Yield Gross yields earned on purchases of fixed maturities, loan receivables, and equities. Purchases exclude capitalized interest, securities lending/repurchase agreements, short-term/cash activity, and alternatives. New money yield for equities is based on the assumed dividend yield at the time of purchase. The new money yield for Aflac Japan excludes the impact of any derivatives and associated amortized hedge costs associated with USD-denominated investments. Management uses this metric as a leading indicator of future investment earning potential.

110


Operating RatiosUsed to evaluate the Company's financial condition and profitability. Examples include: (1) Ratios to total adjusted revenues, which present expenses as a percentage of total revenues and (2) Ratios to total premium, including benefit ratio.

Premium Persistency – Percentage of premiums remaining in force at the end of a period, usually one year, and presented on a trailing 12-month basis. For example, 95% persistency would mean that 95% of the premiums in force at the beginning of the period were still in force at the end of the period. The Company believes that this metric is a key driver of in force levels, which is a key measure of the size of the Company's business and future sources of earnings.

Pretax Adjusted Earnings – Earnings as adjusted earnings before the application of income taxes. This measure is used in the Company's segment reporting.

Pretax Adjusted Profit Margin – Adjusted earnings divided by adjusted revenues, before taxes are applied. This measure is used in the Company's segment reporting.

Return on Average Invested Assets – Net investment income as a percentage of average invested assets during the period. Management uses this metric to demonstrate how our actual net investment income results represent an overall return on the portfolio to provide a more comparative metric as the size of our investment portfolio changes over time.

Risk-based Capital (RBC) Ratio – Statutory adjusted capital divided by statutory required capital. This insurance ratio is based on rules prescribed by the National Association of Insurance Commissioners (NAIC) and provides an indication of the amount of statutory capital the insurance company maintains, relative to the inherent risks in the insurer’s operations.

Solvency Margin Ratio (SMR) – Solvency margin total divided by one half of the risk total. This insurance ratio is prescribed by the Japan Financial Services Agency (FSA) and is used for all life insurance companies in Japan to measure the adequacy of the company’s ability to pay policyholder claims in the event actual risks exceed expected levels.

Statutory Earnings Earnings determined according to accounting rules prescribed by the National Association of Insurance Commissioners (NAIC), as modified by the insurance department in the insurance company’s state of domicile. These statutory accounting rules are different from U.S. GAAP and are intended to emphasize policyholder protection and company solvency.

Weighted-Average Foreign Currency Exchange Rate – Japan segment operating earnings for the period (excluding hedge costs) in yen divided by Japan
segment operating earnings for the period (excluding hedge costs) in dollars. Management uses this metric to evaluate and determine consolidated results on foreign currency effective basis.





111



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
Aflac Incorporated
May 1, 2023Aflac Incorporated
November 2, 2017
/s/ Frederick J. CrawfordMax K. Brodén
(Frederick J. Crawford)Max K. Brodén)
Executive Vice President,
President;
Chief Financial Officer
May 1, 2023
/s/ June Howard
(June Howard)
November 2, 2017
/s/ June Howard
(June Howard)
Senior Vice President, Financial Services; Chief Accounting Officer



99
112