UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form FORM 10-Q
(Mark One)
þQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 20192020
ORor
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission file number File Number: 001-37702
Amgen Inc.
(Exact name of registrant as specified in its charter)
Delaware 95-3540776
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
  
One Amgen Center Drive
Thousand Oaks, California
 91320-1799
Thousand Oaks
California
(Address of principal executive offices) (Zip Code)
(805) (805) 447-1000
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common stock, $0.0001 par valueAMGNThe NASDAQ Global Select Market
1.250% Senior Notes Due 2022AMGN22New York Stock Exchange
2.00% Senior Notes Due 2026AMGN26New York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or Section 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.Yes þ No ¨
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).Yes þ 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
Accelerated filer¨
Non-accelerated filer¨
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 ¨
No þ
As of April 24, 2019,27, 2020, the registrant had 609,935,682588,247,399shares of common stock, $0.0001 par value, outstanding.




AMGEN INC.
INDEX
  Page No.
Item 1.
 
 
 
 
 
 
Item 2.
Item 3.
Item 4.
Item 1.
Item 1A.
Item 2.
Item 6.


i



PART I — FINANCIAL INFORMATION
Item 1.FINANCIAL STATEMENTS
AMGEN INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(In millions, except per-share data)
(Unaudited)


Three months ended
March 31,
Three months ended
March 31,
2019 20182020 2019
Revenues:      
Product sales$5,286
 $5,343
$5,894
 $5,286
Other revenues271
 211
267
 271
Total revenues5,557
 5,554
6,161
 5,557
      
Operating expenses:      
Cost of sales1,055
 944
1,513
 1,055
Research and development879
 760
952
 879
Selling, general and administrative1,154
 1,127
1,316
 1,154
Other(3) (3)25
 (3)
Total operating expenses3,085
 2,828
3,806
 3,085
      
Operating income2,472
 2,726
2,355
 2,472
      
Interest expense, net343
 338
346
 343
Interest and other income, net185
 231
11
 185
      
Income before income taxes2,314
 2,619
2,020
 2,314
      
Provision for income taxes322
 308
195
 322
      
Net income$1,992
 $2,311
$1,825
 $1,992
      
Earnings per share:      
Basic$3.20
 $3.27
$3.09
 $3.20
Diluted$3.18
 $3.25
$3.07
 $3.18
      
Shares used in calculation of earnings per share:      
Basic622
 707
590
 622
Diluted626
 711
594
 626


See accompanying notes.


AMGEN INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In millions)
(Unaudited)


 Three months ended
March 31,
 2019 2018
Net income$1,992
 $2,311
Other comprehensive income (loss), net of reclassification adjustments and taxes:   
(Losses) gains on foreign currency translation(13) 29
Gains on cash flow hedges45
 6
Gains (losses) on available-for-sale securities221
 (343)
Other
 2
Other comprehensive income (loss), net of taxes253
 (306)
Comprehensive income$2,245
 $2,005
 Three months ended
March 31,
 2020 2019
Net income$1,825
 $1,992
Other comprehensive (loss) income, net of reclassification adjustments and taxes:   
Losses on foreign currency translation(52) (13)
(Losses) gains on cash flow hedges(61) 45
(Losses) gains on available-for-sale securities(19) 221
Other(2) 
Other comprehensive (loss) income, net of taxes(134) 253
Comprehensive income$1,691
 $2,245


See accompanying notes.


AMGEN INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(In millions, except per-share data)


March 31,
2019
 December 31,
2018
March 31,
2020
 December 31,
2019
(Unaudited)  (Unaudited)  
ASSETS
Current assets:      
Cash and cash equivalents$7,358
 $6,945
$7,687
 $6,037
Marketable securities18,943
 22,359
325
 2,874
Trade receivables, net3,771
 3,580
5,009
 4,057
Inventories3,016
 2,940
3,682
 3,584
Other current assets2,063
 1,794
2,110
 1,888
Total current assets35,151
 37,618
18,813
 18,440
      
Property, plant and equipment, net4,892
 4,958
4,879
 4,928
Intangible assets, net7,124
 7,443
18,653
 19,413
Goodwill14,692
 14,699
14,683
 14,703
Other assets2,138
 1,698
4,641
 2,223
Total assets$63,997
 $66,416
$61,669
 $59,707
      
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:      
Accounts payable$1,091
 $1,207
$1,338
 $1,371
Accrued liabilities7,910
 7,862
8,649
 8,511
Current portion of long-term debt3,705
 4,419
1,840
 2,953
Total current liabilities12,706
 13,488
11,827
 12,835
      
Long-term debt29,319
 29,510
30,008
 26,950
Long-term deferred tax liabilities811
 864
427
 606
Long-term tax liabilities8,869
 8,770
8,111
 8,037
Other noncurrent liabilities1,460
 1,284
1,811
 1,606
      
Contingencies and commitments
 

 

      
Stockholders’ equity:      
Common stock and additional paid-in capital; $0.0001 par value; 2,750.0 shares authorized; outstanding — 614.4 shares in 2019 and 629.6 shares in 201831,243
 31,246
Common stock and additional paid-in capital; $0.0001 par value; 2,750.0 shares authorized; outstanding — 588.0 shares in 2020 and 591.4 shares in 201931,525
 31,531
Accumulated deficit(19,895) (17,977)(21,378) (21,330)
Accumulated other comprehensive loss(516) (769)(662) (528)
Total stockholders’ equity10,832
 12,500
9,485
 9,673
Total liabilities and stockholders’ equity$63,997
 $66,416
$61,669
 $59,707


See accompanying notes.


AMGEN INC.
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(In millions, except per-share data)
(Unaudited)


 
Number
of shares
of common
stock
 
Common
stock and
additional
paid-in capital
 
Accumulated
deficit
 
Accumulated
other
comprehensive
loss
 Total
Balance as of December 31, 2019591.4
 $31,531
 $(21,330) $(528) $9,673
Cumulative effect of changes in accounting principles, net of tax
 
 (2) 
 (2)
Net income
 
 1,825
 
 1,825
Other comprehensive loss, net of taxes
 
 
 (134) (134)
Dividends declared on common stock ($1.60 per share)
 
 (938) 
 (938)
Issuance of common stock in connection with the Company’s equity award programs0.9
 10
 
 
 10
Stock-based compensation expense
 52
 
 
 52
Tax impact related to employee stock-based compensation expense
 (68) 
 
 (68)
Repurchases of common stock(4.3) 
 (933) 
 (933)
Balance as of March 31, 2020588.0
 $31,525
 $(21,378) $(662) $9,485
 
Number
of shares
of common
stock
 
Common
stock and
additional
paid-in capital
 
Accumulated
deficit
 
Accumulated
other
comprehensive
loss
 Total
Balance as of December 31, 2018629.6
 $31,246
 $(17,977) $(769) $12,500
Net income
 
 1,992
 
 1,992
Other comprehensive income, net of taxes
 
 
 253
 253
Dividends declared on common stock ($1.45 per share)
 
 (879) 
 (879)
Issuance of common stock in connection with the Company’s equity award programs0.7
 6
 
 
 6
Stock-based compensation expense
 64
 
 
 64
Tax impact related to employee stock-based compensation expense
 (73) 
 
 (73)
Repurchases of common stock(15.9) 
 (3,031) 
 (3,031)
Balance as of March 31, 2019614.4
 $31,243
 $(19,895) $(516) $10,832
 
Number
of shares
of common
stock
 
Common
stock and
additional
paid-in capital
 
Accumulated
deficit
 
Accumulated
other
comprehensive
loss
 Total
Balance as of December 31, 2017722.2
 $30,992
 $(5,072) $(679) $25,241
Cumulative effect of changes in accounting principles, net of taxes
 
 38
 (9) 29
Net income
 
 2,311
 
 2,311
Other comprehensive loss, net of taxes
 
 
 (306) (306)
Dividends declared on common stock ($1.32 per share)
 
 (877) 
 (877)
Issuance of common stock in connection with the Company’s equity award programs0.6
 5
 
 
 5
Stock-based compensation expense
 61
 
 
 61
Tax impact related to employee stock-based compensation expense
 (57) 
 
 (57)
Repurchases of common stock(56.4) 
 (10,787) 
 (10,787)
Balance as of March 31, 2018666.4
 $31,001
 $(14,387) $(994) $15,620


See accompanying notes.




AMGEN INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In millions)
(Unaudited)


Three months ended
March 31,
Three months ended
March 31,
2019 20182020 2019
Cash flows from operating activities:      
Net income$1,992
 $2,311
$1,825
 $1,992
Depreciation, amortization and other495
 471
897
 495
Deferred income taxes(50) (72)(84) (50)
Other items, net24
 98
107
 24
Changes in operating assets and liabilities, net of acquisition:      
Trade receivables, net(207) (384)(955) (207)
Inventories(28) (107)(113) (28)
Other assets(249) (135)319
 (249)
Accounts payable(112) (278)(25) (112)
Accrued income taxes, net277
 353
137
 277
Long-term tax liabilities100
 63
74
 100
Other liabilities(397) 407
(48) (397)
Net cash provided by operating activities1,845
 2,727
2,134
 1,845
Cash flows from investing activities:      
Purchases of marketable securities(6,898) (2,732)(129) (6,898)
Proceeds from sales of marketable securities125
 16,694
2,574
 125
Proceeds from maturities of marketable securities10,455
 900
113
 10,455
Cash acquired in acquisition, net of cash paid
 197
Purchases of property, plant and equipment(116) (155)(142) (116)
Purchases of equity method investments(2,645) (5)
Other(11) 2
(1) (6)
Net cash provided by investing activities3,555
 14,906
Net cash (used in) provided by investing activities(230) 3,555
Cash flows from financing activities:      
Net proceeds from issuance of debt4,963
 
Repayment of debt(1,000) 
(3,250) (1,000)
Repurchases of common stock(3,032) (10,697)(961) (3,032)
Dividends paid(901) (951)(945) (901)
Other(54) (44)(61) (54)
Net cash used in financing activities(4,987) (11,692)(254) (4,987)
Increase in cash and cash equivalents413
 5,941
1,650
 413
Cash and cash equivalents at beginning of period6,945
 3,800
6,037
 6,945
Cash and cash equivalents at end of period$7,358
 $9,741
$7,687
 $7,358


See accompanying notes.


AMGEN INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
March 31, 20192020
(Unaudited)
1. Summary of significant accounting policies
Business
Amgen Inc. (including its subsidiaries, referred to as “Amgen,” “the Company,” “we,” “our” or “us”) is a global biotechnology pioneer that discovers, develops, manufactures and delivers innovative human therapeutics. We operate in one1 business segment: human therapeutics.
Basis of presentation
The financial information for the three months ended March 31, 20192020 and 2018,2019, is unaudited but includes all adjustments (consisting of only normal, recurring adjustments unless otherwise indicated), which Amgen considers necessary for a fair presentation of its condensed consolidated results of operations for those periods. Interim results are not necessarily indicative of results for the full fiscal year.
The condensed consolidated financial statements should be read in conjunction with our consolidated financial statements and the notes thereto contained in our Annual Report on Form 10-K for the year ended December 31, 2018.2019.
Principles of consolidation
The condensed consolidated financial statements include the accounts of Amgen as well as its majority-owned subsidiaries. We do not have any significant interests in anyvariable interest entities. All material intercompany transactions and balances have been eliminated in consolidation.
Use of estimates
The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results may differ from those estimates.
Property, plant and equipment, net
Property, plant and equipment is recorded at historical cost, net of accumulated depreciation and amortization of $7.9$8.5 billion and $7.8$8.4 billion as of March 31, 20192020 and December 31, 2018,2019, respectively.
LeasesEquity method investments
AdoptionThe equity method of new lease standardaccounting is used for equity investments that give us the ability to exert significant influence, but not control, over an investee based on such factors as our ownership percentage, voting and other shareholder rights, board of director representation and the existence of other collaborative or business relationships. The equity method of accounting requires us to allocate the difference between the fair value of securities acquired and our proportionate share of the carrying value of the underlying assets (the basis difference) to various items and amortize such differences over their useful lives. Our share of the investees’ earnings or losses and amortization of basis differences, if any, are recorded one quarter in arrears in Interest and other income, net, in the Condensed Consolidated Statements of Income.
We record impairment losses on our equity method investments if we deem the impairment to be other-than-temporary. We deem an impairment to be other-than-temporary based on various factors including, but not limited to, the length of time the fair value is below the carrying value, volatility of the security price and our intent and ability to retain the investment to allow for a recovery in fair value.
Recent accounting pronouncements
In FebruaryJune 2016, the Financial Accounting Standards Board (FASB) issued a new accounting standard that amends the guidance for the accounting and disclosure of leases. This new standard requires that lessees recognize the assets and liabilities that arise from leases on the balance sheet, including leases classified as operating leases, and disclose qualitative and quantitative information about leasing arrangements. The FASB subsequently issued additional amendments to address issues arising from the implementation of the new lease standard. We adopted this standard as of January 1, 2019, using the modified-retrospective method. This approach provides a method for recording existing leases at adoption. We used the adoption date as our date of initial application, and thus comparative-period financial information is not presented for periods prior to the adoption date. In addition, we elected the package of practical expedients permitted under the transition guidance within the new standard, which, among other things, allowed us to carry forward the historical lease classification.
Adoption of the new standard resulted in total lease liabilities of $510 million and right-of-use (ROU) assets of $439 million as of January 1, 2019. The difference between the initial lease liabilities and the ROU assets is related primarily to previously existing lease liabilities. The standard did not materially impact our Condensed Consolidated Statements of Income and had no impact on our Condensed Consolidated Statements of Cash Flows. Our accounting policies under the new standard are described below. See Note 8, Leases.
Lease recognition
At inception of a contract, we determine whether an arrangement is or contains a lease. For all leases, we determine the classification as either operating or financing. Operating leases are included in Other assets, Accrued liabilities and Other noncurrent liabilities in our Condensed Consolidated Balance Sheets.

ROU assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments under the lease. Lease recognition occurs at the commencement date and lease liability amounts are based on the present value of lease payments over the lease term. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Because most of our leases do not provide information to determine an implicit interest rate, we use our incremental borrowing rate in determining the present value of lease payments. ROU assets also include any lease payments made prior to the commencement date and exclude lease incentives received. Operating lease expense is recognized on a straight-line basis over the lease term.
We have lease agreements with both lease and nonlease components, which are generally accounted for together as a single lease component. In addition, for certain vehicle and equipment leases, we apply a portfolio approach to determine the lease term and discount rate.
Other recent accounting pronouncements
In June 2016, the FASB issued a new accounting standard that amends the guidance for measuring and recording credit losses on financial assets measured at amortized cost by replacing the incurred-loss model with an expected-loss model. Accordingly, these financial assets will be presented at the net amount expected to be collected. This new standard also requires that credit losses related to available-for-sale debt securities be recorded as an allowance through net income rather than by reducing the carrying amount under the current, other-than-temporary-impairment model. We adopted this standard as of January 1, 2020, using a modified-retrospective approach. Adoption of the standard did not have a material impact on our condensed consolidated financial statements.

In March 2020, the FASB issued a new accounting standard to ease the financial reporting burdens of the expected market transition from the London Interbank Offered Rate (LIBOR) and other interbank offered rates to alternative reference rates, commonly referred to as reference rate reform. The new standard provides temporary optional expedients and exceptions to current GAAP guidance on contract modifications and hedge accounting. Specifically, a modification to transition to an alternative reference rate is treated as an event that does not require contract remeasurement or reassessment of a previous accounting treatment. Moreover, for all types of hedging relationships, an entity may change the reference rate without having to dedesignate the hedging relationship. The standard is generally effective for interimall contract modifications made and annual periods beginning on January 1, 2020, but may be adopted earlier. With certain exceptions, adjustments are to be applied usinghedging relationships evaluated through December 31, 2022, as a modified-retrospective approach by reflecting adjustments through a cumulative-effect impact on retained earnings asresult of the beginning of the fiscal year of adoption.reference rate reform. We are currently evaluating the impact that this new standard will have on our condensed consolidated financial statements.
2. Revenues
We operate in one1 business segment: human therapeutics. Therefore, results of our operations are reported on a consolidated basis for purposes of segment reporting, consistent with internal management reporting. Revenues by product and by geographic area, based on customers’ locations, are presented below. Rest-of-world (ROW) revenues relate to products that are sold primarily in Europe.
Revenues were as follows (in millions):
 Three months ended March 31, Three months ended March 31,
 2019 2018 2020 2019
 US ROW Total US ROW Total US ROW Total US ROW Total
Enbrel® (etanercept)
 $1,106
 $45
 $1,151
 $1,050
 $55
 $1,105
 $1,117
 $36
 $1,153
 $1,106
 $45
 $1,151
Prolia® (denosumab)
 422
 232
 654
 390
 202
 592
Neulasta® (pegfilgrastim)
 893
 128
 1,021
 1,009
 146
 1,155
 534
 75
 609
 893
 128
 1,021
Prolia® (denosumab)
 390
 202
 592
 320
 174
 494
XGEVA® (denosumab)
 356
 115
 471
 332
 113
 445
 355
 126
 481
 356
 115
 471
Otezla® (apremilast)
 377
 102
 479
 
 
 
Aranesp® (darbepoetin alfa)
 182
 232
 414
 225
 229
 454
 175
 247
 422
 182
 232
 414
KYPROLIS® (carfilzomib)
 154
 91
 245
 137
 85
 222
 187
 93
 280
 154
 91
 245
EPOGEN® (epoetin alfa)
 219
 
 219
 244
 
 244
Sensipar®/Mimpara® (cinacalcet)
 135
 78
 213
 409
 88
 497
Repatha® (evolocumab)
 124
 105
 229
 83
 58
 141
Other products 556
 404
 960
 421
 306
 727
 988
 599
 1,587
 827
 424
 1,251
Total product sales(1)
 $3,991
 $1,295
 5,286
 $4,147
 $1,196
 5,343
 $4,279
 $1,615
 5,894
 $3,991
 $1,295
 5,286
Other revenues     271
     211
     267
     271
Total revenues     $5,557
     $5,554
     $6,161
     $5,557
____________ 
(1) 
Hedging gains and losses, which are included in product sales, were not material for the three months ended March 31, 20192020 and 2018.2019.

3. Income taxes
The effective tax rates for the three months ended March 31, 2020 and 2019, were 9.7% and 2018, were 13.9% and 11.8%, respectively.
The increasedecrease in our effective tax rate for the three months ended March 31, 2019,2020, was due primarily to a prior-year tax benefit associated with intercompany sales under U.S. corporate tax reform.amortization related to the Otezla® acquisition, changes in jurisdictional mix of earnings and certain favorable items in the quarter. The effective tax rates differ from the federal statutory rate primarily as a result of foreign earnings from the Company’s operations conducted in Puerto Rico, a territory of the United States that is treated as a foreign jurisdiction for U.S. tax purposes and that isare subject to tax incentive grants through 2035; these2035. In addition, the Company’s operations conducted in Singapore are subject to a tax incentive grant through 2034. These earnings are also subject to U.S. tax at a reduced rate of 10.5% rate..
The U.S. territory of Puerto Rico imposes an excise tax on the gross intercompany purchase price of goods and services from our manufacturer in Puerto Rico. The rate of 4% is effective through December 31, 2027. We account for the excise tax as a manufacturing cost that is capitalized in inventory and expensed in cost of sales when the related products are sold. For U.S. income tax purposes, the excise tax results in foreign tax credits that are generally recognized in our provision for income taxes when the excise tax is incurred.

One or more of our legal entities file income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions and certain foreign jurisdictions. Our income tax returns are routinely examined by the tax authorities in those jurisdictions. Significant disputes may arise with tax authorities involving issues ofregarding the timing and amount of deductions, the use of tax credits and allocations of income and expenses among various tax jurisdictions because of differing interpretations of tax laws, regulations and the interpretation of the relevant facts. As previously disclosed, we received a Revenue Agent Report (RAR) from the Internal Revenue Service (IRS) for the years 2010, 2011 and 2012. The RAR proposes to make significant adjustments that relate primarily to the allocation of profits between certain of our entities in the United States and the U.S. territory of Puerto Rico. In November 2017, we received a modified RAR that revised the IRS’s calculationcalculations but continued to propose substantial adjustments. We disagree with the proposed adjustments and calculations and are pursuing resolution with the IRS administrative appeals office, which currently has jurisdiction over the matter. If we deem necessary, we will vigorously contest the proposed adjustments through the judicial process. In addition, in April, we received draft notice of proposed adjustments (NOPAs) from the IRS for the years 2013, 2014 and 2015, which are similar to the proposed adjustments for the years 2010, 2011 and 2012 that relate primarily to the allocation of profits between certain of our entities in the United States and the U.S. territory of Puerto Rico. We disagree with the proposed adjustments and calculations and intend to contest them. We are also currently under examination by a number of other state and foreign tax jurisdictions.
Final resolution of thisthese complex mattermatters is not likely within the next 12 months and could have a material impact on our condensed consolidated financial statements. We believe our accrual for income tax liabilities is appropriate based on past experience, interpretations of tax law and judgments about potential actions by tax authorities; however, due to the complexity of the provision for income taxes, the ultimate resolution of any tax matters may result in payments substantially greater or less than amounts accrued. We are no longer subject to U.S. federal income tax examinations for years ended on or before December 31, 2009. In addition, we are currently under examination by a number of other state and foreign tax jurisdictions.
During the three months ended March 31, 2019,2020, the gross amounts of our unrecognized tax benefits (UTBs) increased $90$50 million as a result of tax positions taken during the current year. Substantially all of the UTBs as of March 31, 2019,2020, if recognized, would affect our effective tax rate.

4. Earnings per share
The computation of basic earnings per share (EPS) is based on the weighted-average number of our common shares outstanding. The computation of diluted EPS is based on the weighted-average number of our common shares outstanding and dilutive potential common shares, which include primarily shares that may be issued under our stock option, restricted stock and performance unit award programs (collectively, dilutive securities), as determined by using the treasury stock method.
The computations for basic and diluted EPS were as follows (in millions, except per-share data):
 Three months ended
March 31,
 2020 2019
Income (Numerator):   
Net income for basic and diluted EPS$1,825
 $1,992
    
Shares (Denominator):   
Weighted-average shares for basic EPS590
 622
Effect of dilutive securities4
 4
Weighted-average shares for diluted EPS594
 626
    
Basic EPS$3.09
 $3.20
Diluted EPS$3.07
 $3.18
 Three months ended
March 31,
 2019 2018
Income (Numerator):   
Net income for basic and diluted EPS$1,992
 $2,311
    
Shares (Denominator):   
Weighted-average shares for basic EPS622
 707
Effect of dilutive securities4
 4
Weighted-average shares for diluted EPS626
 711
    
Basic EPS$3.20
 $3.27
Diluted EPS$3.18
 $3.25

For the three months ended March 31, 20192020 and 2018,2019, the number of antidilutive employee stock-based awards excluded from the computation of diluted EPS was not significant.

5. Collaborations
On January 2, 2020, we closed our strategic collaboration with BeiGene, Ltd. (BeiGene) to expand our oncology presence in China. Under the collaboration, BeiGene will commercialize XGEVA®, KYPROLIS® and BLINCYTO® (blinatumomab) in China, and Amgen will share profits and losses equally during the initial product-specific commercialization periods; thereafter, product rights may revert to Amgen, and Amgen will pay royalties to BeiGene on sales in China.
In addition, we will jointly develop a portion of our oncology portfolio with BeiGene sharing in global research and development (R&D) costs by providing cash and development services up to $1.25 billion. Upon regulatory approval, BeiGene will assume commercialization rights in China for a specified period, and Amgen and BeiGene will share profits equally until certain of these product rights revert to Amgen. Upon return of the product rights, Amgen will pay royalties to BeiGene on sales in China for a specified period. For product sales outside of China, Amgen will also pay BeiGene royalties.
For the three months ended March 31, 2020, costs recovered from BeiGene for oncology product candidates were $57 million and were recorded in R&D expense in the Condensed Consolidated Statements of Income. For the three months ended March 31, 2020, no profit share payments or product sales were recorded between Amgen and BeiGene. In connection with this collaboration, we acquired an ownership interest in BeiGene. See Note 6, Investments.
6. Investments
Available-for-sale investments
The amortized cost, gross unrealized gains, gross unrealized losses and fair values of interest-bearing securities, which are considered available-for-sale, by type of security were as follows (in millions):
Types of securities as of March 31, 2019 
Amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Fair
values
Types of securities as of March 31, 2020 
Amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Fair
values
U.S. Treasury notes $2,709
 $
 $(27) $2,682
 $173
 $3
 $
 $176
U.S. Treasury bills 3,475
 
 
 3,475
 900
 
 
 900
Other government-related debt securities:        
U.S. 112
 
 (1) 111
Foreign and other 964
 4
 (10) 958
Corporate debt securities:                
Financial 2,771
 1
 (22) 2,750
 12
 
 
 12
Industrial 2,481
 4
 (27) 2,458
 12
 
 
 12
Other 572
 1
 (7) 566
 
 
 
 
Residential-mortgage-backed securities 1,404
 
 (22) 1,382
 
 
 
 
Other mortgage- and asset-backed securities 478
 
 (11) 467
Money market mutual funds 4,375
 
 
 4,375
 5,762
 
 
 5,762
Other short-term interest-bearing securities 6,428
 
 
 6,428
 432
 
 
 432
Total interest-bearing securities $25,769
 $10
 $(127) $25,652
 $7,291
 $3
 $
 $7,294
Types of securities as of December 31, 2019 
Amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Fair
values
U.S. Treasury notes $359
 $1
 $
 $360
U.S. Treasury bills 
 
 
 
Corporate debt securities:        
Financial 1,108
 13
 
 1,121
Industrial 824
 10
 
 834
Other 195
 3
 
 198
Residential-mortgage-backed securities 181
 1
 
 182
Money market mutual funds 5,250
 
 
 5,250
Other short-term interest-bearing securities 289
 
 
 289
Total interest-bearing securities $8,206
 $28
 $
 $8,234


Types of securities as of December 31, 2018 
Amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Fair
values
U.S. Treasury notes $2,710
 $
 $(47) $2,663
U.S. Treasury bills 8,191
 
 
 8,191
Other government-related debt securities:        
U.S. 112
 
 (2) 110
Foreign and other 972
 1
 (41) 932
Corporate debt securities:        
Financial 2,778
 
 (81) 2,697
Industrial 2,603
 
 (99) 2,504
Other 583
 
 (21) 562
Residential-mortgage-backed securities 1,458
 
 (36) 1,422
Other mortgage- and asset-backed securities 483
 
 (14) 469
Money market mutual funds 5,659
 
 
 5,659
Other short-term interest-bearing securities 3,515
 
 
 3,515
Total interest-bearing securities $29,064
 $1
 $(341) $28,724
The fair values of interest-bearing securities by location in the Condensed Consolidated Balance Sheets were as follows (in millions):
Condensed Consolidated Balance Sheets locations March 31,
2020
 December 31,
2019
Cash and cash equivalents $6,969
 $5,360
Marketable securities 325
 2,874
Total interest-bearing securities $7,294
 $8,234
Condensed Consolidated Balance Sheets locations March 31,
2019
 December 31,
2018
Cash and cash equivalents $6,709
 $6,365
Marketable securities 18,943
 22,359
Total interest-bearing securities $25,652
 $28,724

Cash and cash equivalents in the above table excludes bank account cash of $649$718 million and $580$677 million as of March 31, 20192020 and December 31, 2018,2019, respectively.
The fair values of interest-bearing securities by contractual maturity, except for mortgage- and asset-backedresidential-mortgage-backed securities that do not have a single maturity date, were as follows (in millions):
Contractual maturities March 31,
2020
 December 31,
2019
Maturing in one year or less $7,165
 $5,629
Maturing after one year through three years 129
 2,304
Maturing after three years through five years 
 119
Residential mortgage-backed securities 
 182
Total interest-bearing securities $7,294
 $8,234
Contractual maturities March 31,
2019
 December 31,
2018
Maturing in one year or less $14,357
 $17,424
Maturing after one year through three years 4,600
 3,356
Maturing after three years through five years 3,987
 5,168
Maturing after five years through ten years 859
 885
Mortgage- and asset-backed securities 1,849
 1,891
Total interest-bearing securities $25,652
 $28,724

For the three months ended March 31, 20192020 and 2018,2019, realized gains on interest-bearing securities were $1$37 million and $17$1 million, respectively, and realized losses on interest-bearing securities were $5$4 million and $151$5 million, respectively. Realized gains and losses on interest-bearing securities are recorded in Interest and other income, net, in the Condensed Consolidated Statements of Income. The cost of securities sold is based on the specific-identification method.

The fair values and gross unrealized losses of interest-bearing securities in an unrealized loss position aggregated by type and length of time that the securities have been in a continuous loss position were as follows (in millions):
  Less than 12 months 12 months or more
Types of securities as of March 31, 2019 Fair values Unrealized losses Fair values Unrealized losses
U.S. Treasury notes $1,190
 $(11) $1,452
 $(16)
Other government-related debt securities:        
U.S. 
 
 111
 (1)
Foreign and other 410
 (6) 307
 (4)
Corporate debt securities:        
Financial 1,783
 (14) 822
 (8)
Industrial 1,516
 (20) 634
 (7)
Other 454
 (6) 36
 (1)
Residential-mortgage-backed securities 558
 (9) 809
 (13)
Other mortgage- and asset-backed securities 17
 
 450
 (11)
Total $5,928
 $(66) $4,621
 $(61)
  Less than 12 months 12 months or more
Types of securities as of December 31, 2018 Fair values Unrealized losses Fair values Unrealized losses
U.S. Treasury notes $1,219
 $(21) $1,444
 $(26)
Other government-related debt securities:        
U.S. 
 
 110
 (2)
Foreign and other 631
 (31) 240
 (10)
Corporate debt securities:        
Financial 1,968
 (59) 718
 (22)
Industrial 1,898
 (81) 529
 (18)
Other 529
 (20) 28
 (1)
Residential-mortgage-backed securities 576
 (14) 840
 (22)
Other mortgage- and asset-backed securities 17
 
 451
 (14)
Total $6,838
 $(226) $4,360
 $(115)
The primary objective of our investment portfolio is to enhance overall returns in an efficient manner while maintainingmaintain safety of principal, prudent levels of liquidity and acceptable levels of risk. Our investment policy limits interest-bearing security investments to certain types of debt and money market instruments issued by institutions with primarily investment-grade credit ratings, and it places restrictions on maturities and concentration by asset class and issuer.
We review our available-for-sale investments for other-than-temporary declines in fair value below our cost basis each quarter and whenever events or changes in circumstances indicate that the cost basis of an asset may not be recoverable. The evaluation is based on a number of factors, including the length of time and the extent to which the fair value has been below our cost basis as well as adverse conditions related specifically to the security, such as any changes to the credit rating of the security and the intent to sell or whether we will more likely than not be required to sell the security before recovery of its amortized cost basis. Our assessment of whether a security is other-than-temporarily impaired could change in the future based on new developments or changes in assumptions related to that particular security. As of March 31, 2020 and December 31, 2019, aggregated gross unrealized losses onof available-for-sale investments were due primarily to higher interest rates than at the time the securities were purchased. Asnot material, and accordingly, no allowance for credit losses was recorded as of March 31, 2019 and December 31, 2018, we believe the cost bases for our available-for-sale investments were recoverable in all material respects.2020.
Equity securities
We held investments in equity securities with readily determinable fair values of $246$220 million and $176$303 million as of March 31, 20192020 and December 31, 2018,2019, respectively, which are included in Other assets in the Condensed Consolidated Balance Sheets. Gains and losses recognized on equity securities with readily determinable fair values, including gains and losses recognized on sales, were not material for the three months ended March 31, 20192020 and 2018.2019.

As of March 31, 2019 and December 31, 2018, respectively, weWe held investments of $185$183 million and $222$176 million in equity securities without readily determinable fair values as of March 31, 2020 and December 31, 2019, respectively, which are included in Other assets in the Condensed Consolidated Balance Sheets. Adjustments to the carrying values of these securities were not material for the three months ended March 31, 20192020 and 2018.2019.
Equity method investments
Limited partnership investmentspartnerships
We held limited partnership investments of $275$331 million and $285$320 million as of March 31, 20192020 and December 31, 2018,2019, respectively, which are included in Other assets in the Condensed Consolidated Balance Sheets. These investments, primarily investment funds of early-stage biotechnology companies, are accounted for by using the equity method of accounting and measured by using our proportionate share of the net asset values of the underlying investments held by the limited partnerships as a practical expedient. These investments are typically redeemable only through distributions upon liquidation of the underlying assets. As of March 31, 2019,2020, unfunded additional commitments to be made for these investments during the next several years for these investments were not material. Gains and losses recognized on our limited partnership investments were not material for the three months ended March 31, 20192020 and 2018.2019.

BeiGene
On January 2, 2020, we acquired a 20.5% ownership interest in BeiGene for $2.8 billion, of which $2.6 billion was attributed to the fair value of equity securities upon closing, with the remainder attributed to prepaid R&D. Our equity investment in BeiGene is included in Other assets in the Condensed Consolidated Balance Sheets. The fair value of equity securities acquired exceeded our proportionate share of the carrying value of the underlying net assets of BeiGene by approximately $2.4 billion. This investment is accounted for by using the equity method of accounting, which requires us to identify and allocate amounts to the items that give rise to the basis difference and to amortize these items over their useful lives. This amortization, along with our share of the results of operations of BeiGene, will be recognized in Interest and other income, net, in our Condensed Consolidated Statements of Income. Recognition will occur one quarter in arrears, beginning in the second quarter of 2020. The basis difference was allocated to finite-lived intangible assets, indefinite-lived intangible assets, equity-method goodwill and related deferred taxes. The finite-lived intangible assets will be amortized over a period ranging from 8 to 15 years.
As of March 31, 2020, the carrying and fair values of our approximately 20.5% ownership interest in BeiGene totaled $2.6 billion and $2.0 billion, respectively. As of March 31, 2020, we believe the carrying value of our equity investment in BeiGene is fully recoverable. See Note 1, Summary of significant accounting policies, for factors considered in determining our conclusion. For information on a collaboration agreement we entered into with BeiGene in connection with this investment, see Note 5, Collaborations.
6.7. Inventories
Inventories consisted of the following (in millions):
 March 31,
2020
 December 31,
2019
Raw materials$446
 $358
Work in process2,192
 2,227
Finished goods1,044
 999
Total inventories$3,682
 $3,584
 March 31,
2019
 December 31,
2018
Raw materials$276
 $257
Work in process1,770
 1,660
Finished goods970
 1,023
Total inventories$3,016
 $2,940

7.8. Goodwill and other intangible assets
Goodwill
The change in the carrying amount of goodwill was as follows (in millions):
 Three months ended
March 31, 2020
Beginning balance$14,703
Currency translation adjustment(20)
Ending balance$14,683

 Three months ended
March 31, 2019
Beginning balance$14,699
Currency translation adjustment(7)
Ending balance$14,692

Other intangible assets
Other intangible assets consisted of the following (in millions):
 March 31, 2020 December 31, 2019
 
Gross
carrying
amounts
 
Accumulated
amortization
 
Other intangible
assets, net
 
Gross
carrying
amounts
 
Accumulated
amortization
 
Other intangible
assets, net
Finite-lived intangible assets:           
Developed-product-technology rights$25,549
 $(8,876) $16,673
 $25,575
 $(8,322) $17,253
Licensing rights3,746
 (2,494) 1,252
 3,761
 (2,398) 1,363
Marketing-related rights1,375
 (979) 396
 1,382
 (965) 417
Research and development technology rights1,269
 (967) 302
 1,273
 (947) 326
Total finite-lived intangible assets31,939
 (13,316) 18,623
 31,991
 (12,632) 19,359
Indefinite-lived intangible assets:           
In-process research and development30
 
 30
 54
 
 54
Total other intangible assets$31,969
 $(13,316) $18,653
 $32,045
 $(12,632) $19,413
 March 31, 2019 December 31, 2018
 
Gross
carrying
amounts
 
Accumulated
amortization
 
Other intangible
assets, net
 
Gross
carrying
amounts
 
Accumulated
amortization
 
Other intangible
assets, net
Finite-lived intangible assets:           
Developed-product-technology rights$12,559
 $(7,639) $4,920
 $12,573
 $(7,479) $5,094
Licensing rights3,693
 (2,064) 1,629
 3,772
 (2,032) 1,740
Marketing-related rights1,211
 (947) 264
 1,297
 (1,019) 278
Research and development technology rights1,145
 (889) 256
 1,148
 (872) 276
Total finite-lived intangible assets18,608
 (11,539) 7,069
 18,790
 (11,402) 7,388
Indefinite-lived intangible assets:           
In-process research and development55
 
 55
 55
 
 55
Total other intangible assets$18,663
 $(11,539) $7,124
 $18,845
 $(11,402) $7,443


Developed-product-technology rights consistconsists of rights related to marketed products acquired in business combinations.products. Licensing rights consistconsists primarily of contractual rights acquired in business combinations to receive future milestone, royalty and profit-sharing payments; capitalized payments to third parties for milestones related to regulatory approvals to commercialize products; and upfrontup-front payments associated with royalty obligations for marketed products. Marketing-related rights consistconsists primarily of rights related to the sale and distribution of marketed products. Research and development (R&D)R&D technology rights pertainpertains to technologytechnologies used in R&D that have alternative future uses.
In-process research and development (IPR&D) consists of R&D projects acquired in a business combination that are not complete at the time of acquisition due to remaining technological risks and/or lack of receipt of required regulatory approvals. We review IPR&D projects for impairment annually, whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable and upon the establishment of technological feasibility or regulatory approval.
During the three months ended March 31, 20192020 and 2018,2019, we recognized amortization associated with our finite-lived intangible assets of $709 million and $315 million, respectively. Amortization of intangible assets is included primarily in Cost of sales in the Condensed Consolidated Statements of Income, of $315 million and $320 million, respectively.Income. The total estimated amortization for our finite-lived intangible assets for the remaining nine months ending December 31, 2019,2020, and the years ending December 31, 2020, 2021, 2022, 2023, 2024 and 2024,2025, are $1.0$2.1 billion, $1.2$2.6 billion, $1.0$2.5 billion, $0.9$2.4 billion, $0.9$2.4 billion and $0.8$2.2 billion, respectively.
8. Leases
On January 1, 2019, we adopted a new accounting standard that amends the guidance for the accounting and reporting of leases. Certain required disclosures have been made on a prospective basis in accordance with the guidance of the standard. See Note 1, Summary of significant accounting policies.
We lease certain facilities and equipment related primarily to administrative, R&D and sales and marketing activities. Leases with lease terms of 12 months or less are expensed on a straight-line basis over the lease term and are not recorded in the Condensed Consolidated Balance Sheets.
Most leases include one or more options to renew, with renewal terms that can extend the lease term up to seven years. The exercise of lease renewal options is at our sole discretion. In addition, some of our lease agreements include rental payments adjusted periodically for inflation. Our lease agreements neither contain any residual value guarantees nor impose any significant restrictions or covenants. We sublease certain real estate to third parties. Our sublease portfolio consists of operating leases from former R&D and administrative space.
The following table summarizes information related to our leases, which are all classified as operating, included in our Condensed Consolidated Balance Sheets (in millions):
Condensed Consolidated Balance Sheets locations March 31, 2019
Assets:  
Other assets $417
Liabilities:  
Accrued liabilities $120
Other noncurrent liabilities 368
Total lease liabilities $488
The components of net lease costs were as follows (in millions):
Lease costs Three months ended March 31, 2019
Operating(1)
 $48
Sublease income (8)
Total net lease costs $40
____________
(1)
Includes short-term leases and variable lease costs, which were not material for the three months ended March 31, 2019.

Maturities of lease liabilities as of March 31, 2019, were as follows (in millions):
Maturity dates Operating leases
Remaining nine months ending December 31, 2019 $135
2020 133
2021 107
2022 63
2023 48
Thereafter 41
Total lease payments(1)
 527
Less imputed interest (39)
Present value of lease liabilities $488
____________
(1)
Includes future rental commitments for abandoned leases of $204 million. We expect to receive total future rental income of $166 million related to noncancelable subleases for abandoned facilities.
The weighted-average remaining lease term and weighted-average discount rate of our leases were 4.5 years and 3.32%, respectively, as of March 31, 2019.
Cash and noncash information related to our leases was as follows (in millions):
  Three months ended March 31, 2019
Cash paid for amounts included in the measurement of lease liabilities: 
Operating cash flows from operating leases $34
ROU assets obtained in exchange for lease obligations:  
Operating leases $8


9. Financing arrangements
Our borrowings consisted of the following (in millions):
 March 31,
2020
 December 31,
2019
4.50% notes due 2020 (4.50% 2020 Notes)$
 $300
2.125% notes due 2020 (2.125% 2020 Notes)750
 750
Floating Rate Notes due 2020300
 300
2.20% notes due 2020 (2.20% 2020 Notes)700
 700
3.45% notes due 2020 (3.45% 2020 Notes)
 900
4.10% notes due 2021 (4.10% 2021 Notes)
 1,000
1.85% notes due 2021 (1.85% 2021 Notes)
 750
3.875% notes due 2021 (3.875% 2021 Notes)1,450
 1,750
1.25% €1,250 million notes due 2022 (1.25% 2022 euro Notes)1,379
 1,402
2.70% notes due 2022 (2.70% 2022 Notes)500
 500
2.65% notes due 2022 (2.65% 2022 Notes)1,500
 1,500
3.625% notes due 2022 (3.625% 2022 Notes)750
 750
0.41% CHF700 million bonds due 2023 (0.41% 2023 Swiss franc Bonds)728
 725
2.25% notes due 2023 (2.25% 2023 Notes)750
 750
3.625% notes due 2024 (3.625% 2024 Notes)1,400
 1,400
1.90% notes due 2025 (1.90% 2025 Notes)500
 
3.125% notes due 2025 (3.125% 2025 Notes)1,000
 1,000
2.00% €750 million notes due 2026 (2.00% 2026 euro Notes)827
 841
2.60% notes due 2026 (2.60% 2026 Notes)1,250
 1,250
5.50% £475 million notes due 2026 (5.50% 2026 pound sterling Notes)590
 630
2.20% notes due 2027 (2.20% 2027 Notes)750
 
3.20% notes due 2027 (3.20% 2027 Notes)1,000
 1,000
4.00% £700 million notes due 2029 (4.00% 2029 pound sterling Notes)869
 928
2.45% notes due 2030 (2.45% 2030 Notes)1,250
 
6.375% notes due 2037 (6.375% 2037 Notes)552
 552
6.90% notes due 2038 (6.90% 2038 Notes)291
 291
6.40% notes due 2039 (6.40% 2039 Notes)466
 466
3.15% notes due 2040 (3.15% 2040 Notes)1,250
 
5.75% notes due 2040 (5.75% 2040 Notes)412
 412
4.95% notes due 2041 (4.95% 2041 Notes)600
 600
5.15% notes due 2041 (5.15% 2041 Notes)974
 974
5.65% notes due 2042 (5.65% 2042 Notes)487
 487
5.375% notes due 2043 (5.375% 2043 Notes)261
 261
4.40% notes due 2045 (4.40% 2045 Notes)2,250
 2,250
4.563% notes due 2048 (4.563% 2048 Notes)1,415
 1,415
3.375% notes due 2050 (3.375% 2050 Notes)1,250
 
4.663% notes due 2051 (4.663% 2051 Notes)3,541
 3,541
Other notes due 2097100
 100
Unamortized bond discounts, premiums and issuance costs, net(892) (868)
Fair value adjustments648
 296
Total carrying value of debt31,848
 29,903
Less current portion(1,840) (2,953)
Total long-term debt$30,008
 $26,950
 March 31,
2019
 December 31,
2018
5.70% notes due 2019 (5.70% 2019 Notes)$
 $1,000
1.90% notes due 2019 (1.90% 2019 Notes)700
 700
Floating Rate Notes due 2019550
 550
2.20% notes due 2019 (2.20% 2019 Notes)1,400
 1,400
2.125% €675 million notes due 2019 (2.125% 2019 euro Notes)757
 774
4.50% notes due 2020 (4.50% 2020 Notes)300
 300
2.125% notes due 2020 (2.125% 2020 Notes)750
 750
Floating Rate Notes due 2020300
 300
2.20% notes due 2020 (2.20% 2020 Notes)700
 700
3.45% notes due 2020 (3.45% 2020 Notes)900
 900
4.10% notes due 2021 (4.10% 2021 Notes)1,000
 1,000
1.85% notes due 2021 (1.85% 2021 Notes)750
 750
3.875% notes due 2021 (3.875% 2021 Notes)1,750
 1,750
1.25% €1,250 million notes due 2022 (1.25% 2022 euro Notes)1,402
 1,433
2.70% notes due 2022 (2.70% 2022 Notes)500
 500
2.65% notes due 2022 (2.65% 2022 Notes)1,500
 1,500
3.625% notes due 2022 (3.625% 2022 Notes)750
 750
0.41% CHF700 million bonds due 2023 (0.41% 2023 Swiss franc Bonds)703
 713
2.25% notes due 2023 (2.25% 2023 Notes)750
 750
3.625% notes due 2024 (3.625% 2024 Notes)1,400
 1,400
3.125% notes due 2025 (3.125% 2025 Notes)1,000
 1,000
2.00% €750 million notes due 2026 (2.00% 2026 euro Notes)841
 860
2.60% notes due 2026 (2.60% 2026 Notes)1,250
 1,250
5.50% £475 million notes due 2026 (5.50% 2026 pound sterling Notes)619
 606
3.20% notes due 2027 (3.20% 2027 Notes)
1,000
 1,000
4.00% £700 million notes due 2029 (4.00% 2029 pound sterling Notes)912
 893
6.375% notes due 2037 (6.375% 2037 Notes)552
 552
6.90% notes due 2038 (6.90% 2038 Notes)291
 291
6.40% notes due 2039 (6.40% 2039 Notes)466
 466
5.75% notes due 2040 (5.75% 2040 Notes)412
 412
4.95% notes due 2041 (4.95% 2041 Notes)600
 600
5.15% notes due 2041 (5.15% 2041 Notes)974
 974
5.65% notes due 2042 (5.65% 2042 Notes)487
 487
5.375% notes due 2043 (5.375% 2043 Notes)261
 261
4.40% notes due 2045 (4.40% 2045 Notes)2,250
 2,250
4.563% notes due 2048 (4.563% 2048 Notes)1,415
 1,415
4.663% notes due 2051 (4.663% 2051 Notes)3,541
 3,541
Other notes due 2097100
 100
Unamortized bond discounts, premiums and issuance costs, net(886) (896)
Fair value adjustments77
 (53)
Total carrying value of debt33,024
 33,929
Less current portion(3,705) (4,419)
Total long-term debt$29,319
 $29,510

There are no material differences between the effective interest rates and coupon rates of any of our borrowings, except for the 4.563% 2048 Notes and the 4.663% 2051 Notes, which have effective interest rates of 6.3% and 5.6%, respectively.

Debt issuances and repayments
During the three months ended March 31, 2020, we issued $5.0 billion of debt, consisting of the 1.90% 2025 Notes, the 2.20% 2027 Notes, the 2.45% 2030 Notes, the 3.15% 2040 Notes and the 3.375% 2050 Notes. In the event of a change-in-control triggering event, as defined in the terms of the notes, we may be required to purchase all or a portion of these notes at a price equal to 101% of the principal amount of the notes plus accrued and unpaid interest. In addition, these notes may be redeemed at any time at our option, in whole or in part, at the principal amount of the notes being redeemed plus accrued and unpaid interest and a “make-whole” amount, which are defined by the terms of the notes. The notes may be redeemed without payment of make-whole amounts if redemption occurs during specified periods of time immediately prior to the maturity of the notes. Such time periods range from one month to six months prior to maturity.
A portion of the proceeds from the issuance of these notes were used to redeem the 3.45% 2020 Notes, the 4.10% 2021 Notes, the 1.85% 2021 Notes and $300 million aggregate principal amount of our 3.875% 2021 Notes. In connection with the redemption of these notes, we paid a total of $50 million in make-whole amounts plus associated accrued and unpaid interest, all of which was recognized in Interest expense, net, in the Condensed Consolidated Statements of Income during the three months ended March 31, 2020. In addition to these redemptions, the 4.50% 2020 Notes matured and were repaid during the three months ended March 31, 2020.
Interest rate swaps
In connection with the redemption of certain of the notes discussed above, associated interest rate swap contracts with an aggregate notional value of $2.2 billion were terminated. Additionally, due to historically low interest rates, during the three months ended March 31, 2020, we terminated interest rate swaps with an aggregate notional amount of $5.2 billion that hedged the 3.625% 2024 Notes, 2.60% 2026 Notes, 4.663% 2051 Notes and portions of our 3.625% 2022 Notes and 3.125% 2025 Notes, which resulted in the receipt of $576 million of cash and reduced counterparty credit risk. Immediately following termination of these contracts, we entered into new interest rate swap agreements at then-current interest rates on the same $5.2 billion principal amount of notes. See Note 12, Derivative instruments.
The effective interest rates on notes for which we have entered into interest rate swap contracts and the related notional amounts of these contracts were as follows (dollar amounts in millions):
  March 31, 2020 December 31, 2019
Notes Notional amountsEffective interest rates Notional amountsEffective interest rates
3.45% 2020 Notes $
LIBOR + 1.1% $900
LIBOR + 1.1%
4.10% 2021 Notes 
LIBOR + 1.7% 1,000
LIBOR + 1.7%
3.875% 2021 Notes 1,450
LIBOR + 2.0% 1,750
LIBOR + 2.0%
3.625% 2022 Notes 750
LIBOR + 2.7% 750
LIBOR + 1.6%
3.625% 2024 Notes 1,400
LIBOR + 3.2% 1,400
LIBOR + 1.4%
3.125% 2025 Notes 1,000
LIBOR + 1.8% 1,000
LIBOR + 0.9%
2.60% 2026 Notes 1,250
LIBOR + 1.8% 1,250
LIBOR + 0.3%
4.663% 2051 Notes(1)
 1,500
LIBOR + 2.6% 1,500
LIBOR + 0.0%
Total notional amounts $7,350
  $9,550
 
____________
(1)
Excludes an additional 1.5% of interest for the difference between the coupon rate paid to note holders and the fixed rate received under the interest rate swap contracts.


10. Stockholders’ equity
Stock repurchase program
Activity under our stock repurchase program, on a trade date basis, was as follows (in millions):
 2020 2019
 Shares Dollars  Shares Dollars
First quarter4.3
 $933
 15.9
 $3,031

 2019 2018
 Shares Dollars  Shares Dollars
First quarter15.9
 $3,031
 56.4
 $10,787
In December 2019, our Board of Directors increased the amount authorized under our stock repurchase program by an additional $4.0 billion. As of March 31, 2019, $2.12020, $5.5 billion of authorityauthorization remained available under our stock repurchase program.
Dividends
In March 2020, the Board of Directors declared a quarterly cash dividend of $1.60 per share, which will be paid in June 2020. In December 2019, the Board of Directors declared a quarterly cash dividend of $1.45 per share, which will be paid in June 2019. In December 2018, the Board of Directors declared a quarterly cash dividend of $1.45$1.60 per share, which was paid in March 2019.2020.
Accumulated other comprehensive income (loss)
The components of Accumulated other comprehensive income (loss) (AOCI) were as follows (in millions):
 
Foreign
currency
translation
 
Cash flow
hedges
 
Available-for-sale
securities
 Other AOCI
Balance as of December 31, 2019$(718) $175
 $22
 $(7) $(528)
Foreign currency translation adjustments(52) 
 
 
 (52)
Unrealized (losses) gains
 (162) 8
 
 (154)
Reclassification adjustments to income
 84
 (33) 
 51
Other
 
 
 (2) (2)
Income taxes
 17
 6
 
 23
Balance as of March 31, 2020$(770) $114
 $3
 $(9) $(662)
 
Foreign
currency
translation
 
Cash flow
hedges
 
Available-for-sale
securities
 Other AOCI
Balance as of December 31, 2018$(670) $241
 $(338) $(2) $(769)
Foreign currency translation adjustments(13) 
 
 
 (13)
Unrealized gains
 30
 218
 
 248
Reclassification adjustments to income
 28
 4
 
 32
Income taxes
 (13) (1) 
 (14)
Balance as of March 31, 2019$(683) $286
 $(117) $(2) $(516)


Reclassifications out of AOCI and into earnings were as follows (in millions):
  Three months ended March 31,  
Components of AOCI 2020 2019 
Condensed Consolidated
Statements of Income locations
Cash flow hedges:      
Foreign currency contract gains $49
 $14
 Product sales
Cross-currency swap contract losses (133) (42) Interest and other income, net
  (84) (28) Income before income taxes
  18
 6
 Provision for income taxes
  $(66) $(22) Net income
Available-for-sale securities:      
Net realized gains (losses) $33
 $(4) Interest and other income, net
  (7) 
 Provision for income taxes
  $26
 $(4) Net income

  Three months ended March 31,  
Components of AOCI 2019 2018 
Condensed Consolidated
Statements of Income locations
Cash flow hedges:      
Foreign currency contract gains (losses) $14
 $(34) Product sales
Cross-currency swap contract (losses) gains (42) 164
 Interest and other income, net
  (28) 130
 Income before income taxes
  6
 (28) Provision for income taxes
  $(22) $102
 Net income
Available-for-sale securities:      
Net realized losses $(4) $(134) Interest and other income, net
  
 1
 Provision for income taxes
  $(4) $(133) Net income
Three months ended March 31,



11. Fair value measurement
To estimate the fair value of our financial assets and liabilities, we use valuation approaches within a hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing an asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the inputs that market participants would use in pricing an asset or liability and are developed based on the best information available in the circumstances. The fair value hierarchy is divided into three levels based on the source of inputs as follows:
Level 1Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access
Level 2Valuations for which all significant inputs are observable either directly or indirectly—other than Level 1 inputs
Level 3Valuations based on inputs that are unobservable and significant to the overall fair value measurement
The availability of observable inputs can vary among the various types of financial assets and liabilities. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. In certain cases, the inputs used for measuring fair value may fall into different levels of the fair value hierarchy. In such cases, for financial statement disclosure purposes, the level in the fair value hierarchy within which the fair value measurement is categorized is based on the lowest level of input used that is significant to the overall fair value measurement.
The fair values of each major class of the Company’s financial assets and liabilities measured at fair value on a recurring basis were as follows (in millions):
  Quoted prices in
active markets for
identical assets
(Level 1)
 
Significant
other observable
inputs
(Level 2)
 
Significant
unobservable
inputs
(Level 3)
  
      
Fair value measurement as of March 31, 2020, using:    Total
Assets:        
Available-for-sale securities:        
U.S. Treasury notes $176
 $
 $
 $176
U.S. Treasury bills 900
 
 
 900
Corporate debt securities:        
Financial 
 12
 
 12
Industrial 
 12
 
 12
Other 
 
 
 
Residential-mortgage-backed securities 
 
 
 
Money market mutual funds 5,762
 
 
 5,762
Other short-term interest-bearing securities 
 432
 
 432
Equity securities 220
 
 
 220
Derivatives:        
Foreign currency contracts 
 375
 
 375
Cross-currency swap contracts 
 10
 
 10
Interest rate swap contracts 
 89
 
 89
Total assets $7,058
 $930
 $
 $7,988
         
Liabilities:        
Derivatives:        
Foreign currency contracts $
 $5
 $
 $5
Cross-currency swap contracts 
 657
 
 657
Interest rate swap contracts 
 23
 
 23
Contingent consideration obligations 
 
 60
 60
Total liabilities $
 $685
 $60
 $745
  Quoted prices in
active markets for
identical assets
(Level 1)
 
Significant
other observable
inputs
(Level 2)
 
Significant
unobservable
inputs
(Level 3)
  
      
Fair value measurement as of March 31, 2019, using:    Total
Assets:        
Interest-bearing securities:        
U.S. Treasury notes $2,682
 $
 $
 $2,682
U.S. Treasury bills 3,475
 
 
 3,475
Other government-related debt securities:        
U.S. 
 111
 
 111
Foreign and other 
 958
 
 958
Corporate debt securities:        
Financial 
 2,750
 
 2,750
Industrial 
 2,458
 
 2,458
Other 
 566
 
 566
Residential-mortgage-backed securities 
 1,382
 
 1,382
Other mortgage- and asset-backed securities 
 467
 
 467
Money market mutual funds 4,375
 
 
 4,375
Other short-term interest-bearing securities 
 6,428
 
 6,428
Equity securities 246
 
 
 246
Derivatives:        
Foreign currency contracts 
 238
 
 238
Cross-currency swap contracts 
 143
 
 143
Interest rate swap contracts 
 94
 
 94
Total assets $10,778
 $15,595
 $
 $26,373
         
Liabilities:        
Derivatives:        
Foreign currency contracts $
 $8
 $
 $8
Cross-currency swap contracts 
 429
 
 429
Interest rate swap contracts 
 54
 
 54
Contingent consideration obligations 
 
 66
 66
Total liabilities $
 $491
 $66
 $557


  
Quoted prices in
active markets for
identical assets
(Level 1)
 
Significant
other observable
inputs
(Level 2)
 
Significant
unobservable
inputs
(Level 3)
  
      
Fair value measurement as of December 31, 2019, using:    Total
Assets:        
Available-for-sale securities:        
U.S. Treasury notes $360
 $
 $
 $360
U.S. Treasury bills 
 
 
 
Corporate debt securities:        
Financial 
 1,121
 
 1,121
Industrial 
 834
 
 834
Other 
 198
 
 198
Residential-mortgage-backed securities 
 182
 
 182
Money market mutual funds 5,250
 
 
 5,250
Other short-term interest-bearing securities 
 289
 
 289
Equity securities 303
 
 
 303
Derivatives:        
Foreign currency contracts 
 224
 
 224
Cross-currency swap contracts 
 66
 
 66
Interest rate swap contracts 
 259
 
 259
Total assets $5,913
 $3,173
 $
 $9,086
         
Liabilities:        
Derivatives:        
Foreign currency contracts $
 $31
 $
 $31
Cross-currency swap contracts 
 315
 
 315
Interest rate swap contracts 
 
 
 
Contingent consideration obligations 
 
 61
 61
Total liabilities $
 $346
 $61
 $407
  
Quoted prices in
active markets for
identical assets
(Level 1)
 
Significant
other observable
inputs
(Level 2)
 
Significant
unobservable
inputs
(Level 3)
  
      
Fair value measurement as of December 31, 2018, using:    Total
Assets:        
Interest-bearing securities:        
U.S. Treasury notes $2,663
 $
 $
 $2,663
U.S. Treasury bills 8,191
 
 
 8,191
Other government-related debt securities:        
U.S. 
 110
 
 110
Foreign and other 
 932
 
 932
Corporate debt securities:        
Financial 
 2,697
 
 2,697
Industrial 
 2,504
 
 2,504
Other 
 562
 
 562
Residential-mortgage-backed securities 
 1,422
 
 1,422
Other mortgage- and asset-backed securities 
 469
 
 469
Money market mutual funds 5,659
 
 
 5,659
Other short-term interest-bearing securities 
 3,515
 
 3,515
Equity securities 176
 
 
 176
Derivatives:        
Foreign currency contracts 
 182
 
 182
Cross-currency swap contracts 
 170
 
 170
Interest rate swap contracts 
 56
 
 56
Total assets $16,689
 $12,619
 $
 $29,308
         
Liabilities:        
Derivatives:        
Foreign currency contracts $
 $26
 $
 $26
Cross-currency swap contracts 
 401
 
 401
Interest rate swap contracts 
 149
 
 149
Contingent consideration obligations 
 
 72
 72
Total liabilities $
 $576
 $72
 $648

Interest-bearing and equity securities
The fair values of our U.S. Treasury securities, money market mutual funds and equity securities are based on quoted market prices in active markets, with no valuation adjustment.
MostAs of March 31, 2020, our other government-related and corporate debt securities are investment grade and have maturity dates offivethree years or less from the balance sheet date. Our other government-relatedcorporate debt securities portfolio is composed of securities withhas weighted-average credit ratings of A–BBB or equivalent by Standard & Poor’s Financial Services LLC (S&P), BBB+ by Moody’s Investors Service, Inc. (Moody’s), or and A– by Fitch Ratings, Inc. (Fitch); and our corporate debt securities portfolio has weighted-average credit ratings of A– or equivalent by Fitch and BBB+ or equivalent by S&P or Moody’s.. We estimate the fair values of these securities by taking into consideration valuations obtained from third-party pricing services. The pricing services use industry-standard valuation models, including both income- and market-based approaches, for which all significant inputs are observable either directly or indirectly to estimate fair value. The inputs include reported trades of and broker-dealer quotes on the same or similar securities; issuer credit spreads; benchmark securities; and other observable inputs.
Our residential-mortgage-, other-mortgage- and asset-backed-securities portfolio is composed entirely of senior tranches with credit ratings of AAA by S&P, Moody’s or Fitch. We estimate the fair values of these securities by taking into consideration valuations obtained from third-party pricing services. The pricing services use industry-standard valuation models, including both income- and market-based approaches, for which all significant inputs are observable either directly or indirectly to estimate fair value. The inputs include reported trades of and broker-dealer quotes on the same or similar securities; issuer credit spreads; benchmark securities; prepayment or default projections based on historical data; and other observable inputs.
We value our other short-term interest-bearing securities at amortized cost, which approximates fair value given their near-term maturity dates.

Derivatives
All of our foreign currency forward and option derivative contracts have maturities of three years or less, and all are with counterparties that have minimum credit ratings of A– or equivalent by S&P, Moody’s or Fitch. We estimate the fair values of these contracts by taking into consideration valuations obtained from a third-party valuation service that uses an income-based industry-standard valuation model for which all significant inputs are observable either directly or indirectly. These inputs include foreign currency exchange rates, the London Interbank Offered Rate (LIBOR),LIBOR, swap rates and obligor credit default swap rates. In addition, inputs for our foreign currency option contracts include implied volatility measures. These inputs, when applicable, are at commonly quoted intervals. See Note 12, Derivative instruments.

Our cross-currency swap contracts are with counterparties that have minimum credit ratings of A– or equivalent by S&P, Moody’s or Fitch. We estimate the fair values of these contracts by taking into consideration valuations obtained from a third-party valuation service that uses an income-based industry-standard valuation model for which all significant inputs are observable either directly or indirectly. These inputs include foreign currency exchange rates, LIBOR, swap rates, obligor credit default swap rates and cross-currency-basis swap spreads. See Note 12, Derivative instruments.
Our interest rate swap contracts are with counterparties that have minimum credit ratings of A– or equivalent by S&P, Moody’s or Fitch. We estimate the fair values of these contracts by using an income-based industry-standard valuation model for which all significant inputs are observable either directly or indirectly. These inputs include LIBOR, swap rates and obligor credit default swap rates. See Note 12, Derivative instruments.
Contingent consideration obligations
As a result of our business acquisitions, we have incurred contingent consideration obligations. The contingent consideration obligations are recorded at their fair values by using probability-adjusted discounted cash flows, and we revalue these obligations each reporting period until the related contingencies have been resolved. The fair value measurements of these obligations are based on significant unobservable inputs related to licensing rights and product candidates acquired in business combinations, and they are reviewed quarterly by management in our R&D and commercial sales organizations. These inputs include, as applicable, estimated probabilities and the timing of achieving specified regulatory and commercial milestones as well as estimated annual sales. Significant changes that increase or decrease the probabilities of achieving the related regulatory and commercial events or that shorten or lengthen the time required to achieve such events or that increase or decrease estimated annual sales would result in corresponding increases or decreases in the fair values of the obligations, as applicable. Changes in the fair values of contingent consideration obligations are recognized in Other operating expenses in the Condensed Consolidated Statements of Income. Changes in the carrying amounts of contingent consideration obligations for the three months ended March 31, 2019 and 2018 were not material.
During the three months ended March 31, 20192020 and 2018, there were no transfers of assets or liabilities between fair value measurement levels, and2019, there were no material remeasurements to the fair values of assets and liabilities that are not measured at fair value on a recurring basis.
Summary of the fair values of other financial instruments
Cash equivalents
The fair values of cash equivalents approximate their carrying values due to the short-term nature of such financial instruments.
Borrowings
We estimated the fair values of our borrowings by using Level 2 inputs. As of March 31, 20192020 and December 31, 2018,2019, the aggregate fair values of our borrowings were $34.8$35.8 billion and $35.0$33.7 billion, respectively, and the carrying values were $33.0$31.8 billion and $33.9$29.9 billion, respectively.

12. Derivative instruments
The Company is exposed to foreign currency exchange rate and interest rate risks related to its business operations. To reduce our risks related to such exposures, we use or have used certain derivative instruments, including foreign currency forward, foreign currency option, cross-currency swap, forward interest rate and interest rate swap contracts. We do not use derivatives for speculative trading purposes.
Cash flow hedges
We are exposed to possible changes in the values of certain anticipated foreign currency cash flows resulting from changes in foreign currency exchange rates associated primarily with our euro-denominated international product sales. Increases and decreases in the cash flows associated with our international product sales due to movements in foreign currency exchange rates are offset partially by corresponding increases and decreases in the cash flows from our international operating expenses resulting from these foreign currency exchange rate movements. To further reduce our exposure to foreign currency exchange rate fluctuations with regard to our international product sales, we enter into foreign currency forward and option contracts to hedge a portion of our projected international product sales primarily over a three-year time horizon, with, at any given point in time, a higher percentage of nearer-term projected product sales being hedged than in successive periods.
As of both March 31, 20192020 and December 31, 2018,2019, we had outstanding foreign currency forward contracts with aggregate notional amounts of $4.5$4.9 billion and outstanding foreign currency option contracts with aggregate notional amounts of $21 million.$5.0 billion, respectively. We have designated these foreign currency forward and foreign currency option contracts, which are primarily euro based, as cash flow hedges. Accordingly, we report the unrealized gains and losses on these contracts in AOCI in the Condensed Consolidated Balance Sheets, and we reclassify them to Product sales in the Condensed Consolidated Statements of Income in the same periods during which the hedged transactions affect earnings.
To hedge our exposure to foreign currency exchange rate risk associated with certain of our long-term debt denominated in foreign currencies, we enter into cross-currency swap contracts. Under the terms of such contracts, we paid euros, pounds sterling and Swiss francs and received U.S. dollars for the notional amounts at the inception of the contracts; and based on these notional amounts, we exchange interest payments at fixed rates over the lives of the contracts by paying U.S. dollars and receiving euros, pounds sterling and Swiss francs. In addition, we will pay U.S. dollars to and receive euros, pounds sterling and Swiss francs from the counterparties at the maturities of the contracts for these same notional amounts. The terms of these contracts correspond to the related hedged debt, thereby effectively converting the interest payments and principal repayment on the debt from euros, pounds sterling and Swiss francs to U.S. dollars. We have designated these cross-currency swap contracts as cash flow hedges. Accordingly, the unrealized gains and losses on these contracts are reported in AOCI in the Condensed Consolidated Balance Sheets and reclassified to Interest and other income, net, in the Condensed Consolidated Statements of Income in the same periods during which the hedged debt affects earnings.

The notional amounts and interest rates of our cross-currency swaps as of March 31, 2019,2020, were as follows (notional amounts in millions):
  Foreign currency U.S. dollars
Hedged notes Notional amounts Interest rates Notional amounts Interest rates
1.25% 2022 euro Notes 1,250
 1.3% $1,388
 3.2%
0.41% 2023 Swiss franc Bonds CHF700
 0.4% $704
 3.4%
2.00% 2026 euro Notes 750
 2.0% $833
 3.9%
5.50% 2026 pound sterling Notes £475
 5.5% $747
 6.0%
4.00% 2029 pound sterling Notes £700
 4.0% $1,111
 4.5%

  Foreign currency U.S. dollars
Hedged notes Notional amounts Interest rates Notional amounts Interest rates
2.125% 2019 euro Notes 675
 2.1% $864
 2.6%
1.25% 2022 euro Notes 1,250
 1.3% $1,388
 3.2%
0.41% 2023 Swiss franc Bonds CHF700
 0.4% $704
 3.4%
2.00% 2026 euro Notes 750
 2.0% $833
 3.9%
5.50% 2026 pound sterling Notes £475
 5.5% $747
 6.0%
4.00% 2029 pound sterling Notes £700
 4.0% $1,111
 4.5%
In connection with the anticipated issuance of long-term fixed-rate debt, we occasionally enter into forward interest rate contracts in order to hedge the variability in cash flows due to changes in the applicable U.S. Treasury rate between the time we enter into these contracts and the time the related debt is issued. Gains and losses on forward interest rate contracts, which are designated as cash flow hedges, are recognized in AOCI in the Condensed Consolidated Balance Sheets and are amortized into Interest expense, net, in the Condensed Consolidated Statements of Income over the lives of the associated debt issuances. Amounts recognized in connection with forward interest rate swaps during the three months ended March 31, 2019,2020, and amounts expected to be recognized during the subsequent 12 months are not material.

The unrealized gains and losses recognized in AOCI for our derivative instruments designated as cash flow hedges were as follows (in millions):
  Three months ended
March 31,
Derivatives in cash flow hedging relationships 2020 2019
Foreign currency contracts $239
 $85
Cross-currency swap contracts (401) (55)
Total unrealized (losses) gains $(162) $30
  Three months ended
March 31,
Derivatives in cash flow hedging relationships 2019 2018
Foreign currency contracts $85
 $(89)
Cross-currency swap contracts (55) 238
Total unrealized gains $30
 $149
The locations in the Condensed Consolidated Statements of Income and the gains and losses reclassified out of AOCI and into earnings for our derivative instruments designated as cash flow hedges were as follows (in millions):
    Three months ended
March 31,
Derivatives in cash flow hedging relationships Condensed Consolidated Statements of Income locations 2019 2018
Foreign currency contracts Product sales $14
 $(34)
Cross-currency swap contracts Interest and other income, net (42) 164
Total realized (losses) gains   $(28) $130
No portions of our cash flow hedge contracts were excluded from the assessment of hedge effectiveness. As of March 31, 2019, we expected to reclassify $83 million of net losses on our foreign currency and cross-currency swap contracts out of AOCI and into earnings during the next 12 months.
Fair value hedges
To achieve a desired mix of fixed-rate and floating-rate debt, we entered into interest rate swap contracts that qualified for and were designated as fair value hedges. These interest rate swap contracts effectively convert fixed-rate coupons to floating-rate LIBOR-based coupons over the terms of the related hedge contracts. As of March 31, 20192020 and December 31, 2018,2019, we had interest rate swap contracts with aggregate notional amounts of $10.95$7.4 billion and $9.6 billion, respectively, that hedge certain portions of our long-term debt issuances.
Interest rate swaps with an aggregate notional value of $2.2 billion were terminated during the three months ended March 31, 2020, in connection with the redemption of certain of our notes. The termination of these interest rate swaps resulted in a gain of $17 million recognized in Interest expense, net, in the Condensed Consolidated Statements of Income. Additionally, we terminated $5.2 billion aggregate notional amount of interest rate swaps, which resulted in the receipt of $576 million from the counterparties that was included in Net cash provided by operating activities in the Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2020. This amount will be recognized in Interest expense, net, in the Condensed Consolidated Statements of Income over the remaining life of the underlying notes. Immediately following the termination of these interest rate swap contracts, we entered into new interest rate swap agreements at then-current interest rates on the same $5.2 billion principal amount of notes. See Note 9, Financing arrangements, for information on our interest rate swaps.
For interest rate swap contracts that qualify for and are designated as fair value hedges, we recognize in Interest expense, net, in the Condensed Consolidated Statements of Income the unrealized gain or loss on the derivative resulting from the change in fair value during the period, as well as the offsetting unrealized loss or gain of the hedged item resulting from the change in fair value during the period attributable to the hedged risk. If a hedging relationship involving an interest rate swap contract is terminated, the gain or loss realized on contract termination is recorded as an adjustment to the carrying value of the debt and amortized into Interest expense, net, over the remaining life of the previously hedged debt.
Net unrealized gains and losses on our outstanding interest rate swap contracts were as follows (in millions):
  Three months ended
March 31,
Derivatives in fair value hedging relationships 2019 2018
Net unrealized gains (losses) recognized on interest rate swap contracts $133
 $(164)
Net unrealized (losses) gains recognized on related hedged debt $(133) $164

The hedged liabilities and related cumulative-basis adjustments for fair value hedges of those liabilities were recorded in the Condensed Consolidated Balance Sheets as follows (in millions):
 
Carrying amounts of hedged liabilities(1)
 
Cumulative amounts of fair value hedging adjustments related to the carrying amounts of the hedged liabilities(2)
 
Carrying amounts of hedged liabilities(1)
 
Cumulative amounts of fair value hedging adjustments related to the carrying amounts of the hedged liabilities(2)
Condensed Consolidated Balance Sheets locations March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019
Current portion of long-term debt $1,398
 $2,396
 $(2) $(3) $90
 $903
 $90
 $4
Long-term debt $9,494
 $9,361
 $79
 $(50) $7,784
 $8,814
 $558
 $292
____________ 
(1)
Current portion of long-term debt includes $1.0 billion of carrying value with discontinued hedging relationships as of December 31, 2018. Long-term debt includes $137$90 million of carrying value with discontinued hedging relationships as of March 31, 20192020. Long-term debt includes $592 million and $136 million of carrying value with discontinued hedging relationships as of March 31, 2020 and December 31, 2018.2019, respectively.
(2) 
Current portion of long-term debt includes $3 million of hedging adjustments on discontinued hedging relationships as of December 31, 2018. Long-term debt includes $37$90 million of hedging adjustments on discontinued hedging relationships as of March 31, 20192020. Long-term debt includes $492 million and $36 million of hedging adjustments on discontinued hedging relationships as of March 31, 2020 and December 31, 2018.2019, respectively.

Impact of hedging transactions
The following table summarizestables summarize the amounts recorded in income and expense line items and the effects thereon from fair value and cash flow hedging, including discontinued hedging relationships (in millions):
 Three months ended
March 31, 2019
 Three months ended March 31, 2020
 Product sales Interest and other income, net Interest (expense), net Product sales Interest and other income, net Interest (expense), net
Total amounts recorded in income and (expense) line items presented in the Condensed Consolidated Statements of Income $5,286
 $185
 $(343) $5,894
 $11
 $(346)
The effects of cash flow and fair value hedging:            
Gains (losses) on cash flow hedging relationships reclassified out of AOCI:            
Foreign currency contracts $14
 $
 $
 $49
 $
 $
Cross-currency swap contracts $
 $(42) $
 $
 $(133) $
Gains (losses) on fair value hedging relationships—interest rate swap agreements:            
Hedged items(1)
 $
 $
 $(130) $
 $
 $210
Derivatives designated as hedging instruments $
 $
 $133
 $
 $
 $(190)
  Three months ended March 31, 2019
  Product sales Interest and other income, net Interest (expense), net
Total amounts recorded in income and (expense) line items presented in the Condensed Consolidated Statements of Income $5,286
 $185
 $(343)
The effects of cash flow and fair value hedging:      
Gains (losses) on cash flow hedging relationships reclassified out of AOCI:      
Foreign currency contracts $14
 $
 $
Cross-currency swap contracts $
 $(42) $
(Losses) gains on fair value hedging relationships—interest rate swap agreements:      
Hedged items(1)
 $
 $
 $(130)
Derivatives designated as hedging instruments $
 $
 $133
__________ 
(1) 
The amounts include benefits of $3 millionGains (losses) on hedged items do not completely offset gains (losses) on the related designated hedging instruments due to the amortization of the cumulative amountamounts of fair value hedging adjustments included in the carrying amount of the hedged debt for discontinued hedging relationships forand the three months ended March 31, 2019.recognition of gains on terminated hedges where the corresponding hedged item was paid down in the period.
No portions of our cash flow hedge contracts were excluded from the assessment of hedge effectiveness. As of March 31, 2020, we expected to reclassify $162 million of net gains on our foreign currency and cross-currency swap contracts out of AOCI and into earnings during the next 12 months.
Derivatives not designated as hedges
To reduce our exposure to foreign currency fluctuations in certain assets and liabilities denominated in foreign currencies, we enter into foreign currency forward contracts that are not designated as hedging transactions. TheseMost of these exposures are hedged on a month-to-month basis. As of March 31, 20192020 and December 31, 2018,2019, the total notional amounts of these foreign currency forward contracts were $891 million$0.8 billion and $737 million,$1.2 billion, respectively. Gains and losses recognized in earnings for our derivative instruments not designated as hedging instruments were not material for the three months ended March 31, 20192020 and 2018.2019.

The fair values of derivatives included in the Condensed Consolidated Balance Sheets were as follows (in millions):
 Derivative assets Derivative liabilities Derivative assets Derivative liabilities
March 31, 2019 
Condensed Consolidated
Balance Sheets locations
 Fair values Condensed Consolidated
Balance Sheets locations
 Fair values
March 31, 2020 
Condensed Consolidated
Balance Sheets locations
 Fair values Condensed Consolidated
Balance Sheets locations
 Fair values
Derivatives designated as hedging instruments:        
Foreign currency contracts Other current assets/ Other assets $238
 Accrued liabilities/ Other noncurrent liabilities $8
 Other current assets/ Other assets $375
 Accrued liabilities/ Other noncurrent liabilities $5
Cross-currency swap contracts Other current assets/ Other assets 143
 Accrued liabilities/ Other noncurrent liabilities 429
 Other current assets/ Other assets 10
 Accrued liabilities/ Other noncurrent liabilities 657
Interest rate swap contracts Other current assets/ Other assets 94
 Accrued liabilities/ Other noncurrent liabilities 54
 Other current assets/ Other assets 89
 Accrued liabilities/ Other noncurrent liabilities 23
Total derivatives designated as hedging instruments 475
 491
 474
 685
Derivatives not designated as hedging instruments:        
Foreign currency contracts Other current assets 
 Accrued liabilities 
 Other current assets 
 Accrued liabilities 
Total derivatives not designated as hedging instruments 
 
 
 
Total derivatives $475
 $491
 $474
 $685
  Derivative assets Derivative liabilities
December 31, 2019 
Condensed Consolidated
Balance Sheets locations
 Fair values Condensed Consolidated
Balance Sheets locations
 Fair values
Derivatives designated as hedging instruments:        
Foreign currency contracts Other current assets/ Other assets $223
 Accrued liabilities/ Other noncurrent liabilities $31
Cross-currency swap contracts Other current assets/ Other assets 66
 Accrued liabilities/ Other noncurrent liabilities 315
Interest rate swap contracts Other current assets/ Other assets 259
 Accrued liabilities/ Other noncurrent liabilities 
Total derivatives designated as hedging instruments   548
   346
Derivatives not designated as hedging instruments:        
Foreign currency contracts Other current assets 1
 Accrued liabilities 
Total derivatives not designated as hedging instruments   1
   
Total derivatives   $549
   $346
  Derivative assets Derivative liabilities
December 31, 2018 
Condensed Consolidated
Balance Sheets locations
 Fair values Condensed Consolidated
Balance Sheets locations
 Fair values
Derivatives designated as hedging instruments:        
Foreign currency contracts Other current assets/ Other assets $181
 Accrued liabilities/ Other noncurrent liabilities $26
Cross-currency swap contracts Other current assets/ Other assets 170
 Accrued liabilities/ Other noncurrent liabilities 401
Interest rate swap contracts Other current assets/ Other assets 56
 Accrued liabilities/ Other noncurrent liabilities 149
Total derivatives designated as hedging instruments   407
   576
Derivatives not designated as hedging instruments:        
Foreign currency contracts Other current assets 1
 Accrued liabilities 
Total derivatives not designated as hedging instruments   1
   
Total derivatives   $408
   $576

Our derivative contracts that were in liability positions as of March 31, 2019,2020, contain certain credit-risk-related contingent provisions that would be triggered if (i) we were to undergo a change in control and (ii) our or the surviving entity’s creditworthiness deteriorates, which is generally defined as having either a credit rating that is below investment grade or a materially weaker creditworthiness after the change in control. If these events were to occur, the counterparties would have the right but not the obligation to close the contracts under early-termination provisions. In such circumstances, the counterparties could request immediate settlement of these contracts for amounts that approximate the then current fair values of the contracts. In addition, our derivative contracts are not subject to any type of master netting arrangement, and amounts due either to or from a counterparty under the contracts may be offset against other amounts due either to or from the same counterparty only if an event of default or termination, as defined, were to occur.
The cash flow effects of our derivative contracts in the Condensed Consolidated Statements of Cash Flows are included in Net cash provided by operating activities, except for the settlement of notional amounts of cross-currency swaps, which are included in the Condensed Consolidated Statements of Cash Flows.Net cash used in financing activities.


13. Contingencies and commitments
Contingencies
In the ordinary course of business, we are involved in various legal proceedings, government investigations and other matters that are complex in nature and have outcomes that are difficult to predict. See our Annual Report on Form 10-K for the year ended December 31, 2018,2019, Part I, Item 1A. Risk Factors—Our business may be affected by litigation and government investigations. We describe our legal proceedings and other matters that are significant or that we believe could become significant in this footnote.
We record accruals for loss contingencies to the extent that we conclude it is probable that a liability has been incurred and the amount of the related loss can be reasonably estimated. We evaluate, on a quarterly basis, developments in legal proceedings and other matters that could cause an increase or decrease in the amount of the liability that has been accrued previously.
Our legal proceedings involve various aspects of our business and a variety of claims, some of which present novel factual allegations and/or unique legal theories. In each of the matters described in this filing, or in Note 20,19, Contingencies and commitments, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2018,2019, in which we could incur a liability, our opponents seek an award of a not-yet-quantified amount of damages or an amount that is not material. In addition, a number of the matters pending against us are at very early stages of the legal process, which in complex proceedings of the sort we face often extend for several years. As a result, none of the matters described in this filing, or in Note 20,19, Contingencies and commitments, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2018,2019, in which we could incur a liability, have progressed sufficiently through discovery and/or the development of important factual information and legal issues to enable us to estimate a range of possible loss, if any, or such amounts are not material. While it is not possible to accurately predict or determine the eventual outcomes of these matters, an adverse determination in one or more of these matters currently pending could have a material adverse effect on our consolidated results of operations, financial position or cash flows.
Certain recent developments concerning our legal proceedings and other matters are discussed below:
Novartis Breach of Contract ActionAbbreviated New Drug Application (ANDA) Patent Litigation
KYPROLIS® (carfilzomib) ANDA Patent Litigation
Onyx Therapeutics, Inc. v. Cipla Limited, et al.
On April 4, 2019, Amgen filed a lawsuit inMarch 30, 2020, the U.S. District Court for the SouthernDistrict of Delaware (the Delaware District Court) issued an order advising the parties in the litigation that, due to the recent and current challenges, the court does not anticipate issuing its post-trial opinion until approximately on or before May 8, 2020.
Otezla® (apremilast) ANDA Patent Litigation
Amgen Inc. v. Sandoz Inc., et al.
On February 14, 2020, the U.S. District Court for the District of New York against Novartis Pharma AG (Novartis) seeking a declaratory judgment that Novartis materially breached two collaboration agreements related toJersey (the New Jersey District Court) granted the developmentmotion by Amgen and commercialization of Aimovig® (erenumab-aooe) due to Novartis’ affiliate Sandoz Gmbh (Sandoz) entering into a contract manufacturing agreement with Alder BioPharmaceuticals, Inc. (Alder) related to eptinezumab,Celgene Corp. (Celgene) and issued an expected direct competitor to Aimovig® and entrantorder substituting Amgen for Celgene as plaintiff in the calcitonin gene-related peptide (CGRP)-related migraine therapy market. Amgen seeks to terminate its collaboration agreements with Novartisconsolidated action and also seeks damages from Novartis for breach of contract and negligent misrepresentation.
Also on April 4, 2019, Novartis initiated a separate lawsuit against Amgenall related actions, terminating Celgene as plaintiff in the same court seeking declaratoryconsolidated action and all related actions, and amending the case caption in the consolidated action and all related actions to reflect Amgen as the sole plaintiff.
On March 25, 2020, based on a joint request by Amgen and Unichem Laboratories, Ltd. (Unichem), the New Jersey District Court entered a consent judgment that Novartis, alternatively, did not materially breachand injunction prohibiting the collaboration agreementsmaking, using, selling, offering to sell, or even if it did breachimporting of Unichem’s apremilast product during the collaboration agreements, such breach was not materialterm of the U.S. Patent Nos. 6,962,940 (the ’940 Patent); 7,427,638 (the ’638 Patent); 7,659,302 (the ’302 Patent); 7,893,101 (the ’101 Patent); 8,455,536 (the ’536 Patent); 9,018,243 (the ’243 Patent); 9,724,330 (the ’330 Patent); and has been cured, and that Amgen may not terminate the collaboration agreements.10,092,541 (the ’541 Patent), unless authorized pursuant to a confidential settlement agreement. On April 8, 2019,3, 2020, based on a joint request by Amgen answered Novartis’ complaint and filed counterclaims seekingAnnora Pharma Private Ltd. and Hetero USA Inc. (collectively, Hetero), the New Jersey District Court entered a declaratoryconsent judgment that Novartis materially breachedand injunction prohibiting the collaboration agreements duemaking, using, selling, offering to its affiliate Sandoz entering intosell, or importing of Hetero’s apremilast product during the contract manufacturing agreement with Alder. In its counterclaim, Amgen seeksterm of the ’940 Patent; U.S. Patent No. 7,208,516; the ’638 Patent; the ’302 Patent; the ’101 Patent; the ’536 Patent; U.S. Patent No. 8,802,717; the ’243 Patent; the ’330 Patent; U.S. Patent No. 9,872,854 and the ’541 Patent, unless authorized pursuant to terminate its collaboration agreements with Novartis and also seeks damages from Novartis for breach of contract and negligent misrepresentation.a confidential settlement agreement. Trial in the consolidated action is scheduled to commence in May 2021.

Sensipar® (cinacalcet) ANDA Patent Litigation
Amgen Inc. v. Amneal Pharmaceuticals LLC, et al. (formerly, Amgen Inc. v. Aurobindo Pharma Ltd. et al.) ANDA Patent LitigationConsolidated Case
On March 19, 2019,February 13, 2020, Amgen filed an emergency motion for an injunction pending appeal, seeking an order from the U.S. District Court for the District of Delaware (the Delaware District Court) enjoining defendant Piramal Healthcare UK Limited (Piramal) from making, using, selling, offering for sale or importing its generic cinacalcet product. Amgen’s motion follows an announcement that Slate Run Pharmaceuticals LLC (Slate Run), in partnership with Piramal, had begun selling Piramal’s generic cinacalcet product at risk notwithstanding the appeals pending atpetitioned the U.S. Court of Appeals for the Federal Circuit (the Federal Circuit Court). On April 15, 2019, the Delaware District Court signed an order enjoining Piramal and Slate Run from selling their generic cinacalcet product until certain events occur related to a decision by the Federal Circuit Court on the parties’ appeal. The order has no effect on the product that Piramal and Slate Run have already sold to third parties.
On March 21, 2019, defendants Sun Pharma Global FZE, Sun Pharmaceutical Industries, Ltd. and Sun Pharmaceutical Industries, Inc. (collectively, Sun) filed a motion to enforce the settlement agreement entered between Amgen and Sun, contending that Sun’s generic cinacalcet product should not be held off the U.S. market.

On March 26, 2019, the Delaware District Court denied the joint motion for indicative ruling of Watson Laboratories, Inc. and Actavis Pharma, Inc. (collectively, Watson) and Amgen, which had asked the court to vacate its final judgment of noninfringement as to Watson and to enter a proposed consent judgment of infringement and validity of Amgen’s U.S. Patent No. 9,375,405 and an injunction prohibiting the making, having made, using, selling, offering to sell or distributing Watson’s generic cinacalcet product in the United States, or importing Watson’s generic cinacalcet product into the United States, consistent with a confidential settlement agreement entered into by the parties. On April 10, 2019, Amgen filed an appeal to the Federal Circuit Court. On April 29, 2019, the Federal Circuit Court lifted the stay ofrehear Amgen’s appeal of the judgment of noninfringement as to Watson and consolidated it with Amgen’s appeal of the Delaware District Court’s denial of the joint motion for indicative ruling.
Cipla Ltd. v. Amgen Inc.
On March 11, 2019, following an announcement by Cipla Limited and Cipla USA, Inc. (collectively, Cipla) that it had begun selling its generic cinacalcet product in the United States, Amgen filed in the Delaware District Court a counterclaim and related motion for preliminary injunction in Cipla’s lawsuit seeking a declaration that provisions of its February 2018 settlement agreement with Amgen have been triggered by the at-risk launch of a generic cinacalcet product by Teva Pharmaceutical Industries Ltd. (Teva), an affiliate of Watson. Amgen’s motion seeks to prohibit Cipla from making, having made, using, selling, offering to sell or distributing its generic cinacalcet product in breach of such settlement agreement. On April 2, 2019, the Delaware District Court held a hearing on Amgen’s motion for preliminary injunction.
Sensipar® Antitrust Class Actions
From February 21, 2019, to April 10, 2019, four plaintiffs filed putative class action lawsuits against Amgen and various entities affiliated with Teva alleging anticompetitive conduct in connection with settlements between Amgen and manufacturers of generic cinacalcet product. Two of those actions were brought in the Delaware District Court, captioned UFCW Local 1500 Welfare Fund v. Amgen Inc., et al. (February 21, 2019) (Local 1500) and Cesar Castillo, Inc. v. Amgen Inc., et al. (February 26, 2019) (Castillo). The third action was brought in the U.S. District Court for the District of New Jersey (the New Jersey District Court), captioned Teamsters Local 237 Welfare Fund, et al. v. Amgen Inc., et al. (March 14, 2019) (Local 237) and the fourth action was brought in the U.S. District Court for the Eastern District of Pennsylvania (the Eastern Pennsylvania District Court), captioned KPH Healthcare Services, Inc. a/k/a Kinney Drugs, Inc. v. Amgen Inc., et al (April 10, 2019) (KPH). Each of the lawsuits is brought on behalf of a putative class of direct or indirect purchasers of Sensipar® and alleges that the plaintiffs have overpaid for Sensipar® as a result of Amgen’s conduct that allegedly improperly delayed market entry by manufacturers of generic cinacalcet products. The lawsuits focus predominantly on the settlement among Amgen, Watson and Teva of the parties’ patent infringement litigation. Each of the lawsuits seeks, among other things, treble damages, equitable relief and attorneys’ fees and costs. On April 10, 2019, the plaintiff in the KPH lawsuit filed a motion seeking to have the four lawsuits consolidated and designated as a multidistrict litigation (MDL) in the Eastern Pennsylvania District Court, and the plaintiff in the Local 1500 lawsuit filed a motion seeking to have the four lawsuits, along with Cipla Ltd. v. Amgen Inc., consolidated and designated as a MDL in the Delaware District Court.
Sanofi / Regeneron Repatha® (evolocumab) Patent Litigation
On February 25, 2019, a jury of the Delaware District Court unanimously upheld the validity of claims 7 and 15 of U.S. Patent No. 8,829,165 (the ’165 Patent) and claim 7 of U.S. Patent No. 8,859,741 (the ’741 Patent) in our infringement action against Sanofi, Sanofi-Aventis U.S. LLC and Aventisub LLC, formerly doing business as Aventis Pharmaceuticals Inc. (collectively, Sanofi) and Regeneron Pharmaceuticals, Inc. (Regeneron). The jury also found that claims 19 and 29 of the ’165 Patent meet the enablement requirement, but are invalid for failure to meet the written description requirement. On March 18, 2019, Sanofi and Regeneron filed post-trial motions seeking to reverse judgment as a matter of law or for a new trial with respect to claims 7Piramal Healthcare UK Limited, and 15 of the ’165 Patent and claim 7 of the ’741 Patent, and Amgen filed a motion for a permanent injunction. The Delaware District Court has scheduled hearing dates on Amgen’s motion for a permanent injunction for June 6, 13 and 21, 2019.
KYPROLIS® (carfilzomib) ANDA Patent Litigation
On March 4, 2019, the Delaware District Court entered an order on a stipulation between Onyx Therapeutics, Inc. and Breckenridge Pharmaceutical, Inc. (Breckenridge), providing that Breckenridge infringes the asserted claims of U.S. Patent Nos. 7,417,042; 7,737,112 and 8,207,125, and consolidated this lawsuit against Breckenridge into the existing consolidated case, Onyx Therapeutics, Inc. v. Cipla Limited, et al., for all purposes. Trial in the consolidated case is scheduled to commence on May 6, 2019.

Bioepis ENBREL (etanercept) Patent Litigation
On April 30, 2019, Immunex Corporation and Amgen Manufacturing, Limited (collectively, Amgen), along with Hoffmann-La Roche Inc. (Roche), filed a lawsuit in the New Jersey District Court against Samsung Bioepis Co., Ltd. (Bioepis). This lawsuit stems from Bioepis’s submission of an application for U.S. Food and Drug Administration (FDA) licensure of an etanercept product as biosimilar to Amgen’s ENBREL. Amgen and Roche have asserted infringement of five patents: U.S. Patent Nos. 8,063,182 (the ’182 Patent); 8,163,522 (the ’522 Patent); 7,915,225 (the ’225 Patent); 8,119,605 (the ’605 Patent); and 8,722,631 (the ’631 Patent). By their complaint, Amgen and Roche seek an injunction to prohibit Bioepis from commercializing its biosimilar etanercept product in the United States prior to the expiry of such patents.
NEUPOGEN® (filgrastim) / Neulasta® (pegfilgrastim) Patent Litigation
Apotex NEUPOGEN® / Neulasta® Patent Litigation
On April 5, 2019, the U.S. District Court for the Southern District of Florida (the Florida District Court) denied the motion of Apotex Inc. and Apotex Corporation (collectively, Apotex) to dismiss Amgen’s complaint for failure to state a claim. On April 18, 2019, Apotex answered the complaint including counterclaims seeking declaratory judgments of noninfringement and invalidity.
Coherus Neulasta® Patent Litigation
A hearing on Amgen’s Federal Circuit Court appeal of the final judgment dismissing Amgen’s lawsuit against Coherus BioSciences, Inc. (Coherus) for infringement of Amgen’s U.S. Patent No. 8,273,707 is scheduled for May 8, 2019.
As previously disclosed, we are also engaged in a separate lawsuit in the Ventura County Superior Court in which we have alleged that Coherus and others misappropriated our confidential information and trade secrets through the hiring of former Amgen employees and that the defendants have used such information to develop and market UDENYCATM, as biosimilar to Amgen’s Neulasta®. On March 27, 2019, the Ventura County Superior Court ordered Howard Weiser dismissed from the lawsuit based on a joint request regarding settlement filed on behalf of Amgen and Mr. Weiser. Trial in the misappropriation and trade secret litigation began on April 22, 2019.
Pfizer NEUPOGEN® Patent Litigation
On March 22, 2019, Amgen filed an amended complaint against Pfizer Inc. and Hospira Inc. (collectively, Pfizer) in the Delaware District Court narrowing the patent claims at issue in the infringement dispute and adding a request for damages. On April 11, 2019, Pfizer answered Amgen’s amended complaint including counterclaims seeking declaratory judgments of noninfringement and invalidity.
Sandoz NEUPOGEN® / Neulasta® Patent Litigation
On February 21, 2019, Sandoz Inc. (Sandoz) filed a new lawsuit in the U.S. District Court for the Northern District of California (the California Northern District Court) against Amgen Inc. and Amgen Manufacturing, Limited seeking a judgment of noninfringement and invalidity of the ’997 Patent. The lawsuit stems from Sandoz filing applications under the Biologics Price Competition and Innovation Act for the FDA licensure of filgrastim and pegfilgrastim products as biosimilar to NEUPOGEN® and Neulasta®, respectively. On April 24, 2019, Amgen filed a motion to dismiss the lawsuit for failure to state a claim.
Patent Trial and Appeal Board Patent Challenges
On March 7, 2019, Kashiv Biosciences, LLC, formerly known as Adello Biologics, LLC (Kashiv), filed petitions seeking to institute inter partes review (IPR) proceedings before the U.S. Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB) to challenge the patentability of each claim of U.S. Patent Nos. 8,940,878 (the ’878 Patent) and 9,643,997 (the ’997 Patent). The ’878 Patent is also among the patents at issue in the previously-disclosed litigation between Amgen Inc. and Amgen Manufacturing, Limited (collectively, Amgen) and Kashiv, Amneal Pharmaceuticals LLC and Amneal Pharmaceuticals Inc. (the Kashiv NEUPOGEN® litigation)of New York, LLC (collectively, Amneal) petitioned the Federal Circuit Court for panel rehearing of the court’s opinion vacating and inremanding the previously-disclosed litigations between Amgenjudgment of noninfringement with respect to Amneal. On April 15, 2020, the Federal Circuit Court denied each of Amgen’s and Amneal’s petitions. On April 22, 2020, the Federal Circuit Court issued a mandate returning the case to the Delaware District Court.
ENBREL (etanercept) Patent Litigation
Immunex Corporation, et al. v. Sandoz Inc., et al.
On March 4, 2020, the Federal Circuit Court heard oral argument on the appeal by Sandoz Inc., Sandoz International GmbH and Sandoz GmbH (the Sandoz NEUPOGENfrom final judgment upholding the validity of U.S. Patent Nos. 8,063,182 and 8,163,522.
Repatha® litigation) and between Amgen and Sandoz Inc., Sandoz International GmbH, Sandoz GmbH and Lek Pharmaceuticals d.d. (the Sandoz Neulasta® litigation). The ’997 (evolocumab) Patent is also among the patents at issueLitigation
Patent Disputes in the Kashiv International Region
A two-day hearing before the Technical Board of Appeal of the European Patent Office, which was scheduled to begin on March 24, 2020, has been rescheduled to begin on October 28, 2020.
As previously disclosed, we are also involved in and expect future involvement in additional disputes regarding our proprotein convertase subtilisin/kexin type 9 (PCSK9) patents in other jurisdictions and regions, including matters filed against us and that we have filed in the United Kingdom, Germany, France and Japan.
On April 24, 2020, the Supreme Court of Japan declined to hear Sanofi K.K.’s appeals making final the Japanese High Court’s decisions that PRALUENT® infringes Amgen’s valid patent rights in Japan.
NEUPOGEN® (filgrastim)/Neulasta® litigation,(pegfilgrastim) Patent Litigation
Apotex PTAB Challenge
On March 24, 2020, the Pfizer NEUPOGEN®Federal Circuit Court vacated the decision by the Patent Litigation,Trial and Appeal Board (PTAB) of the new Sandoz NEUPOGEN® / Neulasta®U.S. Patent Litigation and Trademark Office and remanded the previously-disclosed litigation between case to the PTAB for proceeding consistent with the Federal Circuit Court’s decision in ArthrexInc. v. Smith & Nephew, Inc., 941 F.3d 1320 (Fed. Cir. 2019).
Amgen and Mylan Inc., Mylan Pharmaceuticalset al. v. Pfizer Inc. et al.
On February 18, 2020, the Delaware District Court entered an amended scheduling order moving the trial on the infringement of our U.S. Patent No. 9,643,997 to May 17, 2021, to enable Amgen Inc. and its wholly owned subsidiary, Amgen Manufacturing, Limited (collectively Amgen), to seek additional discovery into the defenses of Pfizer Inc. (Pfizer) and Hospira Inc. (Hospira).
On April 24, 2020, Amgen filed a separate lawsuit in the Delaware District Court against Hospira and Pfizer for infringement of U.S. Patent No. 10,577,392 (the ’392 Patent) and seeks, among other remedies, damages and injunctive relief to prohibit Hospira and Pfizer from infringing the ’392 Patent by the manufacture, import and sale of Pfizer’s NIVESTYMTM biosimilar filgrastim product, which was launched in the U.S. in October 2018.
Amgen Inc., Mylan GmbH,et al. v. Hospira Inc. et al.
On March 4, 2020, Hospira and Mylan N.V.Pfizer filed a motion requesting the Delaware District Court to dismiss the complaint by Amgen Inc. and its wholly owned subsidiary, Amgen Manufacturing, Limited, alleging non-infringement of U.S. Patent No. 8,273,707. The deadline formotion has been fully briefed.
Fresenius PTAB Challenge
On March 30, 2020, Amgen to file afiled its preliminary response to these IPR petitions is June 14, 2019, after which the PTAB will have three months to render a decision regarding whetherpetition to institute PTAB trial proceedings on the ’878 and ’997 Patents.

In a separate challenge, on April 14, 2019, Fresenius Kabi USA, LLC and Fresenius Kabi SwissBiosim GmbH filed a petition seeking to institute IPR proceedingsinter partes review before the PTAB to challenge the patentability of U.S. Patent No. 9,856,287 (the ’287 Patent). The ’287 Patent is also the subject of the Apotex NEUPOGEN® / Neulasta® Patent Litigationfiled by Fresenius Kabi USA, LLC and is among the patents at issue in the Kashiv NEUPOGEN® litigation. The patent owner preliminary response to the IPR petition is due July 17, 2019, after whichFresenius Kabi SwissBioSim GmbH, and the PTAB will have three3 months to render a decision regardingon whether to institute PTAB trial proceedingsproceedings.

EPOGEN® (epoetin alfa) Patent Litigation
Amgen Inc., et al. v. Hospira, Inc.
The Federal Circuit Court denied petition for rehearing en banc by Hospira and issued the mandate on March 23, 2020 affirming the ’287 Patent.
In a separate challenge, on April 19, 2019, the PTAB granted Apotex and Kashiv’s previously-disclosed petition to institute post grant review proceedings on the ’287 Patent, challenging claimsfinal judgment of the ’287Delaware District Court that Amgen’s U.S. Patent as unpatentable.No. 5,856,298 is valid and infringed by Hospira, that Amgen’s response to the petitionU.S. Patent No. 5,756,349 is due July 11, 2019.
AMJEVITATM (adalimumab-atto) / AMGEVITATM Patent Litigation
On April 18, 2019, Amgen responded to the lawsuit filed by Coherus, denying patent infringement and seeking judgment that the patents-in-suit are invalid, unenforceable and/or not infringed by Amgen.Hospira, and awarding Amgen $70 million in damages for Hospira’s infringement. On April 17, 2020, Amgen acknowledged satisfaction of judgment upon receipt of $83 million in damages, interest and cost.
Litigation relating to our Biosimilar Products
KANJINTI® (trastuzumab-anns) Patent Litigation
Genentech, Inc. v. Amgen Inc.
On March 6, 2020, the Federal Circuit Court affirmed the District Court’s denial of Genentech Inc.’s (Genentech) motion for a preliminary injunction. On March 9, 2020, the Delaware District Court entered a Markman order construing a term of U.S. Patent No. 8,574,869 (the ’869 Patent). On March 16, 2020, the Delaware District Court signed a joint stipulation and order vacating the April 20, 2020 trial date. On April 17, 2020, the Delaware District Court rescheduled the jury trial to begin on February 22, 2021.
MVASITM®(bevacizumab-awwb) Patent Litigation
On March 29, 2019, Genentech, Inc. (Genentech) and City of Hope v. Amgen Inc.
On February 19, 2020, Genentech filed a third lawsuit against Amgenits second amended complaint in the Delaware District Court, alleging infringement of 14 patents. All but 2adding additional claims for legal and declaratory relief with respect to patents already in suit. On March 4, 2020, Amgen filed its second amended affirmative answer and counterclaims, adding affirmative defenses and counterclaims that the ’869 Patent is unenforceable for inequitable conduct and unclean hands.On March 9, 2020, the Delaware District Court entered a Markman order construing a term of the 14 patents asserted in this lawsuit have already been the subject of litigation pending among these parties in this court relating to Amgen’s submission of the application that led to the FDA licensure of MVASITM as biosimilar to Genentech’s Avastin® (bevacizumab). Among other remedies, ’869 Patent.
Genentech, Inc. and City of Hope are seekingv. Immunex Rhode Island Corp. and Amgen Inc.
Argument before the Federal Circuit Court on Genentech’s appeal of the Delaware District Court’s denial of Genentech’s motions for injunctive relief.relief has been scheduled for June 3, 2020.
Humira® Biosimilar Antitrust Class ActionsBreach of Contract Action
From MarchCipla Ltd. et al. v. Amgen Inc.
On February 6, 2020, Amgen’s motion was transferred to the U.S. Magistrate Judge for the District of Delaware for a recommendation. A hearing on the motion was held on April 28, 2020.
Novartis Pharma AG v. Amgen Inc.
On February 18, 2019, to April 19, 2019, ten purported class actions against Amgen, along with AbbVie Inc. and AbbVie Biotechnology Ltd. (collectively, AbbVie), were2020, Novartis Pharma AG filed in the U.S. District Court for the NorthernSouthern District of Illinois. The cases are captioned: UFCW Local 1500 Welfare Fund v. AbbVie Inc., et al. (March 18, 2019) (Local 1500); Fraternal Order of Police, Miami Lodge 20, Insurance Trust Fund v. AbbVie Inc., et al. (March 20, 2019); MayorNew York its answer and City Council of Baltimore v. AbbVie Inc., et al. (March 22, 2019); PipeTrades Services MN Welfare Fund v. AbbVie Inc., et al. (March 29, 2019); St. Paul Electrical Workers’ Health Plan v. AbbVie Inc., et al. (March 29, 2019); Welfare Plan of the International Union of Operating Engineers Locals 137, 137A, 137B, 137C, and 137R v. AbbVie Inc., et al. (April 1, 2019); Law Enforcement Health Benefits, Inc. v. AbbVie, Inc., et al. (April 9, 2019) (Law Enforcement); Kentucky Laborers District Council Health and Welfare Fund v. AbbVie, Inc., et al. (April 16, 2019); Sheet Metal Workers’ Local Union No. 28 Welfare Fund v. AbbVie, Inc., et al. (April 19, 2019) (Sheet Metal Workers’); and Locals 302 & 612 of The International Union of Operating Engineers-Employers Construction Industry Health And Security Trust Fund v. AbbVie Inc., et al. (April 25, 2019) (Construction Industry) (collectively, Humira®affirmative defenses to Amgen’s second amended counterclaims.
Antitrust Class Actions). In each of the HumiraAction
Sensipar® Antitrust Class Actions
On February 6, 2020, the plaintiffs bring federal antitrust claims along with various state law claims under state common law and state antitrust, consumer protection, and unfair competition statutes. In each case,motions in the plaintiffs specifically allege that AbbVie has unlawfully monopolized the alleged market for Humira® and biosimilars of Humira®, including by creating an allegedly unlawful so-called patent thicket around Humira®. In the Local 1500, Sheet Metal Workers’ and Construction Industry cases, the plaintiffs further allege that AbbVie entered into allegedly unlawful market division agreements withclass action lawsuits against Amgen and other companies that had developed Humira® biosimilars, including Samsung Bioepis Co., Ltd., Mylan Inc., Mylan Pharmaceuticals, Inc., Sandoz, Inc., Fresenius Kabi USA, LLC, Pfizer Inc. and Momenta Pharmaceuticals, Inc., in connectionvarious entities affiliated with the settlement of patent litigation relatingTeva Pharmaceutical Industries Limited were transferred to Humira®, whereby Amgen and the other defendants that have developed Humira® biosimilars were permitted to market those products in Europe as early as October 2018, while remaining off the market in the United States until 2023. In each of the Humira® Antitrust Class Actions other than the Local 1500 and Construction Industry cases, the plaintiffs allege that AbbVie and Amgen entered into an allegedly unlawful settlement agreement under which Amgen allegedly agreed to delay its entry into the U.S. market with AMGEVITATM, its Humira® biosimilar, in exchange for an alleged promise of exclusivity as the sole Humira® biosimilar in that market for five months, beginning in January 2023. In each of the Humira® Antitrust Class Actions, plaintiffs seek injunctive relief, treble damages and attorney’s fees on behalf of a putative class of third-party payers and/or consumers that have indirectly purchased, paid for or provided reimbursement for Humira® in the United States. Defendants’ responses to the first six complaints were stayed by the court and a status hearing is set for May 2, 2019.
U.S. Attorney’s OfficeMagistrate Judge for the District of Massachusetts-Patient Assistance InvestigationDelaware for a recommendation. A hearing on the motions was held on April 28, 2020.
On April 25, 2019, Amgen,The multidistrict litigation panel certified its conditional transfer order on February 6, 2020 transferring the additional class action lawsuit brought in the U.S. DepartmentDistrict Court for the Southern District of Justice andFlorida, captioned MSP Recovery Claims v. Amgen Inc., et al.,to the Office of Inspector General (OIG) of the U.S. Department of Health and Human Services entered into a settlement agreement. Under that agreement, Amgen agreed to pay $24.75 million to resolve the government’s allegations relating to Amgen’s support of independent charitable organizations that provide patients with financial assistance to access their medicines. Additionally, Amgen and OIG entered into a Corporate Integrity Agreement that requires Amgen to maintain its corporate compliance program and to undertake a set of defined corporate integrity obligations for a period of five years.Delaware District Court.


Item 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A) is intended to assist the reader in understanding Amgen’s business. MD&A is provided as a supplement to and should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2018.2019. Our results of operations discussed in MD&A are presented in conformity with GAAP. Amgen operates in one business segment: human therapeutics. Therefore, our results of operations are discussed on a consolidated basis.
Forward-looking statements
This report and other documents we file with the Securities and Exchange Commission (SEC) contain forward-looking statements that are based on current expectations, estimates, forecasts and projections about us, our future performance, our business, our beliefs and our management’s assumptions. In addition, we, or others on our behalf, may make forward-looking statements in press releases, written statements or our communications and discussions with investors and analysts in the normal course of business through meetings, webcasts, phone calls and conference calls. Such words as “expect,” “anticipate,” “outlook,” “could,” “target,” “project,” “intend,” “plan,” “believe,” “seek,” “estimate,” “should,” “may,” “assume” and “continue” as well as variations of such words and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and they involve certain risks, uncertainties and assumptions that are difficult to predict. We describe our respective risks, uncertainties and assumptions that could affect the outcome or results of operations in Item 1A. Risk Factors in Part II herein and in Part I, Item 1A. Risk Factors of our Annual Report on Form 10-K for the year ended December 31, 2018.2019. We have based our forward-looking statements on our management’s beliefs and assumptions based on information available to our management at the time the statements are made. We caution you that actual outcomes and results may differ materially from what is expressed, implied or forecasted by our forward-looking statements. Reference is made in particular to forward-looking statements regarding product sales, regulatory activities, clinical trial results, reimbursement, expenses, EPS, liquidity and capital resources, trends, planned dividends, stock repurchases, collaborations and restructuring plans.effects of pandemics. Except as required under the federal securities laws and the rules and regulations of the SEC, we do not have any intention or obligation to update publicly any forward-looking statements after the distribution of this report, whether as a result of new information, future events, changes in assumptions or otherwise.
Overview
Amgen is a highly focused biotechnology company committed to unlocking the potential of biology for patients suffering from serious illness.illnesses. A biotechnology pioneer since 1980, Amgen has grown to be one of the world’s leading independent biotechnology companies, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential. In 2020, we are celebrating our 40th anniversary, continuing our history of focusing on innovative medicines that have the potential to be first-in-class molecules and that have a large-effect size on serious diseases.
Our principal products—those with the most significant annual commercial sales—are ENBREL, NeulastaProlia®, ProliaNeulasta®, XGEVA®, Otezla®, Aranesp®, KYPROLIS® and Repatha®, EPOGEN® and Sensipar®/Mimpara®. We also market a number of other products, including Nplate® (romiplostim), Vectibix® (panitumumab), RepathaParsabiv®(etelcalcetide), ParsabivEPOGEN® (etelcalcetide),Sensipar®/Mimpara®, KANJINTI®, MVASI®, EVENITY®(romosozumab-aqqg),BLINCYTO®, AMGEVITATM (adalimumab),Aimovig® (erenumab-aooe), NEUPOGEN®, BLINCYTOIMLYGIC® (blinatumomab), Aimovig (talimogene laherparepvec) and Corlanor®, AMGEVITATM, KANJINTITM (biosimilar trastuzumab), EVENITYTM (romosozumab-aqqg), Corlanor (ivabradine).
COVID-19 pandemic
A novel strain of coronavirus (COVID-19) was declared a global pandemic by the World Health Organization on March 11, 2020. We have been carefully monitoring the COVID-19 pandemic and its impact on our global operations. We have taken appropriate steps to minimize the risk to our employees. Our employees have been working remotely with the exception of certain essential staff that continue to report to Amgen locations. The essential staff are primarily at our manufacturing sites, working in accordance with applicable government health and safety protocols and guidance issued in response to the COVID-19 pandemic, and are being paid a labor premium during this period. To date, our remote working arrangements have not significantly impacted our ability to maintain critical business operations. Further, we currently do not expect disruptions or shortages of our supply of medicine.


Since the beginning of the COVID-19 pandemic, we have seen changes in demand trends for some of our products, including lower demand for certain products as continuing patient access to those products has been impacted by COVID-19. For example, near the end of March, we began to observe a decline in sales of Prolia® (ivabradine), as elderly patients vulnerable to COVID-19 avoided doctors’ offices. To respond to COVID-19, we are managing our clinical development on a case-by-case basis. Patients who are already enrolled in studies continue to receive study drug, including through direct-to-patient shipments. For those studies that have the potential for significant benefit in a serious or life-threatening condition and IMLYGICwhere site resources allow new patients to be enrolled safely and monitored closely, we are allowing enrollment to continue. For those clinical trials where there is uncertainty with regard to the trial sites’ ability to ensure subject safety or data integrity at the present time, we have temporarily paused enrollment. We remain focused on supporting our active clinical sites in providing care for these patients and providing investigational drug supply. In addition, our R&D organization is supporting efforts to combat the pandemic in a number of ways including: (i) conducting a population-based study by our subsidiary deCODE Genetics in partnership with the Icelandic government, (ii) entering into a collaboration with Adaptive Biotechnologies to discover and develop antibody therapies for prevention or treatment options and (iii) joining a public-private partnership between leading companies in our industry and U.S. government health agencies to develop a strategy for a coordinated research response to the COVID-19 pandemic. Further, we anticipate that Otezla® (talimogene laherparepvec). will be investigated as a potential immunomodulatory treatment in adult patients with COVID-19 in upcoming platform trials.
We continue to believe that existing funds, cash generated from operations and existing sources of and access to financing are adequate to satisfy our needs for working capital, capital expenditures and debt service requirements as well as to engage in the capital return and other business initiatives that we plan to strategically pursue. To respond to some of the challenges experienced in the healthcare community as a result of the pandemic, we recently extended credit terms with certain customers for a subset of our products globally. For a discussion of the risks presented by the COVID-19 pandemic to our results, see Risk Factors in Part II, Item 1A of this Form 10-Q.
Significant developments
Following is a summary of selected significant developments affecting our business that have occurred since the filing of our Annual Report on Form 10-K for the year ended December 31, 2018.2019. For additional developments or for a more comprehensive discussion of certain developments discussed below, see our Annual Report on Form 10-K for the year ended December 31, 2018.2019.
Products/Pipeline
Cardiovascular
Repatha® Establishment of wholly-owned affiliate in Japan
In February 2019,April 2020, we announced thatcompleted our purchase from Astellas of the remaining shares of Amgen Astellas BioPharma K.K. (AABP), a jury unanimously upheld the validity of two of our patents relatedjoint venture between Amgen and Astellas established in 2013. AABP, now a wholly-owned Amgen affiliate in Japan and renamed Amgen K.K., has enabled us to Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) antibodiesbuild a strong presence in our infringement action against Sanofi, Sanofi-Aventis U.S. LLC, Aventisub LLC and Regeneron Pharmaceuticals, Inc. See Note 13, Contingencies and commitments,Japan as we continue to the condensed consolidated financial statements.advance treatments for serious illnesses.

Bone health
EVENITYTM
In April 2019, we and UCB, our global collaboration partner in the development of EVENITYTM, announced that the FDA approved EVENITYTM for the treatment of osteoporosis in postmenopausal women at high risk for fracture.
Selected financial information
The following is an overview of our results of operations (in millions, except percentages and per-share data):
Three months ended
March 31,
  Three months ended
March 31,
  
2019 2018 Change2020 2019 Change
Product sales          
U.S.$3,991
 $4,147
 (4)%$4,279
 $3,991
 7 %
ROW1,295
 1,196
 8 %1,615
 1,295
 25 %
Total product sales5,286
 5,343
 (1)%5,894
 5,286
 12 %
Other revenues271
 211
 28 %267
 271
 (1)%
Total revenues$5,557
 $5,554
  %$6,161
 $5,557
 11 %
Operating expenses$3,085
 $2,828
 9 %$3,806
 $3,085
 23 %
Operating income$2,472
 $2,726
 (9)%$2,355
 $2,472
 (5)%
Net income$1,992
 $2,311
 (14)%$1,825
 $1,992
 (8)%
Diluted EPS$3.18
 $3.25
 (2)%$3.07
 $3.18
 (3)%
Diluted shares626
 711
 (12)%594
 626
 (5)%

In the following discussion of changes in product sales, any reference to unit demand growth or decline refers to changes in the purchases of our products by healthcare providers (such as physicians or their clinics), dialysis centers, hospitals and pharmacies. In addition, any reference to increases or decreases in inventory refers to changes in inventory held by wholesaler customers and end users (such as pharmacies).
Total product sales decreased for the three months ended March 31, 2019, driven primarily by a decline in net selling price and unfavorable changes in inventory, offset partially by higher unit demand. In 2019, we expect a lower net selling price compared with 2018.
Other revenues increased for the three months ended March 31, 2019,2020, driven primarily by sales from Otezla®, acquired in November 2019 and recently launched biosimilar products, offset partially by a decline in net selling price. For the remainder of 2020, we expect net selling price to continue to decline primarily on our legacy products. Further, since the beginning of the COVID-19 pandemic, we have seen changes in demand trends for some of our products, including lower demand for certain products as patient access to those products has been impacted by the pandemic. We expect this trend to continue to some extent through at least the duration of the pandemic. As discussed above, in response to the challenges being experienced by the healthcare community as a result of COVID-19, we have extended credit terms with certain customers for a subset of our products globally. In addition, a number of insurance plans (commercial and governmental) have been required to or have voluntarily covered 90-day prescription fills for a number of medicines including some of our products that are used in chronic conditions. As a result, there is increased uncertainty around the timing and magnitude of our sales during the COVID-19 pandemic.
Other revenues decreased slightly for the three months ended March 31, 2020, driven primarily by lower profit share payments, offset partially by higher royalties.
Operating expenses increased for the three months ended March 31, 2019,2020, driven primarily by higheracquisition related expenses and the first full quarter of commercial-related support for Otezla®. For the remainder of 2020, we expect to continue to see the effects of our acquisition of Otezla® on our operating expenses, including increases to Cost of sales, and R&D expense.and Selling, general and administrative (SG&A) expenses.
Although changes in foreign currency exchange rates result in increases or decreases in our reported international product sales, the benefit or detriment that such movements have on our international product sales is offset partially by corresponding increases or decreases in our international operating expenses and our related foreign currency hedging activities. Our hedging activities seek to offset the impacts, both positive and negative, that foreign currency exchange rate changes may have on our net income by hedging our net foreign currency exposure, primarily with respect to product sales denominated in euros. The net impact from changes in foreign currency exchange rates was not material for the three months ended March 31, 20192020 and 2018.2019.

Results of operations
Product sales
Worldwide product sales were as follows (dollar amounts in millions):
Three months ended
March 31,
  Three months ended
March 31,
  
2019 2018 Change2020 2019 Change
ENBREL$1,151
 $1,105
 4 %$1,153
 $1,151
  %
Prolia®
654
 592
 10 %
Neulasta®
1,021
 1,155
 (12)%609
 1,021
 (40)%
Prolia®
592
 494
 20 %
XGEVA®
471
 445
 6 %481
 471
 2 %
Otezla®
479
 
 *
Aranesp®
414
 454
 (9)%422
 414
 2 %
KYPROLIS®
245
 222
 10 %280
 245
 14 %
EPOGEN®
219
 244
 (10)%
Sensipar®/Mimpara®
213
 497
 (57)%
Repatha®
229
 141
 62 %
Other products960
 727
 32 %1,587
 1,251
 27 %
Total product sales$5,286
 $5,343
 (1)%$5,894
 $5,286
 12 %
* Change in excess of 100%.
Future sales of our products will depend in part on the factors discussed below and in the following sections of our Annual Report on Form 10-K for the year ended December 31, 2018:2019: (i) Item 1. Business—Marketing, Distribution and Selected Marketed Products, (ii) Item 1A. Risk Factors and (iii) Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Overview, and Results of Operations—Product Sales.Sales, as well as in our Quarterly Report on Form 10-Q for the period ended March 31, 2020, in Part II, Item 1A. Risk Factors.

ENBREL
Total ENBREL sales by geographic region were as follows (dollar amounts in millions):
Three months ended
March 31,
  Three months ended
March 31,
  
2019 2018 Change2020 2019 Change
ENBREL — U.S.$1,106
 $1,050
 5 %$1,117
 $1,106
 1 %
ENBREL — Canada45
 55
 (18)%36
 45
 (20)%
Total ENBREL$1,151
 $1,105
 4 %$1,153
 $1,151
  %
The slight increase in ENBREL sales for the three months ended March 31, 2019,2020, was driven primarily by favorable impacts from changes in accounting estimates ofto estimated sales deductions and product returns and a slight increase in net selling price,inventory, offset partially by unfavorable changes in inventory.
In 2019, we expect lower unit demand compared with 2018.and net selling price. For the remainder of 2020, we expect the trend of lower unit demand to continue.
In April 2019, the FDAU.S. Food and Drug Administration (FDA) approved a second biosimilar version of ENBREL. Other companies are also developing proposed biosimilar versions of ENBREL. Further,ENBREL, and we are involved in patent litigations with the two companies seeking to market their FDA-approved biosimilar versions of ENBREL. See Note 13, Contingencies and commitments, to the condensed consolidated financial statements and Note 20,19, Contingencies and commitments, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2018. These2019. Other companies are also developing purposed biosimilar versions of ENBREL. Companies with approved biosimilar versions of ENBREL may seek to enter the U.S. market if we are not successful in our litigations, or even earlier.



NeulastaProlia® 
Total NeulastaProlia®sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
Neulasta®— U.S.
$893
 $1,009
 (11)%
Neulasta®— ROW
128
 146
 (12)%
Total Neulasta®
$1,021
 $1,155
 (12)%
 Three months ended
March 31,
  
 2020 2019 Change
Prolia® — U.S.
$422
 $390
 8%
Prolia® — ROW
232
 202
 15%
Total Prolia®
$654
 $592
 10%
The decreaseincrease in global NeulastaProlia® sales for the three months ended March 31, 2019,2020, was driven primarily by lower net selling price and, to a lesser extent, changes in inventory. Neulasta® sales in 2019 included a $98 million order from the U.S. government.
Our final material U.S. patent for Neulasta® expired in October 2015. Therefore, we face increased competition in the United States, which has had and will continue to have a material adverse impact on sales of Neulasta®. Biosimilar versions of Neulasta® have been approved and launched and other biosimilar versions may also receive approval in the near future. For a discussion of ongoing patent litigations with these and other companies that are developing proposed biosimilar versions of Neulasta®, see Note 13, Contingencies and commitments, to the condensed consolidated financial statements and Note 20, Contingencies and commitments, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2018.
In addition, supplementary protection certificates issued by certain countries, including France, Germany, Italy, Spain and the United Kingdom, that are related to our European patent for Neulasta® expired in August 2017. In 2019, we expect European sales to decline with the launch of multiple long-acting biosimilar competitors.
Neulasta® sales have been and will continue to be affected by the development of new protocols, tests and/or treatments for cancer and/or new treatment alternatives, including those that have reduced and may continue to reduce the use of myelosuppressive regimens in some patients.
Prolia®
Total Prolia® sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
Prolia® — U.S.
$390
 $320
 22%
Prolia® — ROW
202
 174
 16%
Total Prolia®
$592
 $494
 20%
The increase in global Prolia® sales for the three months ended March 31, 2019, was driven primarily by higher unit demand. Prolia®, which has a six-month dosing interval, has exhibited a historical sales pattern with the first and third quarters of a year representing lower sales than the second and fourth quarters of a year. However, disruptions in patient visits as a result of the COVID-19 pandemic have begun to impact near-term demand, which may result in changes to the historical sales pattern.
XGEVANeulasta®
Total Neulasta®
Total XGEVA®sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
XGEVA® — U.S.
$356
 $332
 7%
XGEVA® — ROW
115
 113
 2%
Total XGEVA®
$471
 $445
 6%
 Three months ended
March 31,
  
 2020 2019 Change
Neulasta®— U.S.
$534
 $893
 (40)%
Neulasta®— ROW
75
 128
 (41)%
Total Neulasta®
$609
 $1,021
 (40)%
The increasedecrease in global XGEVANeulasta® sales for the three months ended March 31, 2019,2020, was driven primarily by higher unit demand.

Aranesp®
Total Aranesp® sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
Aranesp® — U.S.
$182
 $225
 (19)%
Aranesp® — ROW
232
 229
 1 %
Total Aranesp®
$414
 $454
 (9)%
The decrease in global Aranesp® sales for the three months ended March 31, 2019, was driven primarily by the impact of biosimilar competition on unit demand.
Aranespdemand and lower net selling price. Neulasta® faces competition sales included a $98 million order from a long-acting product. Aranesp®also faces competition from a biosimilar version of EPOGEN®, which was approvedthe U.S. government in the secondfirst quarter of 2018 and launched in the fourth quarter of 2018. Other biosimilar versions of EPOGEN® may also receive approval. In 2019, we expect sales2019.
We face increased competition in the United States to decline atand Europe as a faster rate than in 2018 due to short- and long- acting competition.
KYPROLISresult of launches of biosimilar versions of Neulasta®
Total KYPROLIS® sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
KYPROLIS® — U.S.
$154
 $137
 12%
KYPROLIS® — ROW
91
 85
 7%
Total KYPROLIS®
$245
 $222
 10%
The increase in global KYPROLIS® sales for the three months ended March 31, 2019, was driven primarily by higher unit demand.
We are engaged in litigation with a number of companies challenging our material patents relating to KYPROLIS® and seeking to market generic carfilzomib products, one of which has been tentatively approved by the FDA. See Note 13, Contingencies and commitments, to the condensed consolidated financial statements. These companies may seek to enter the U.S. market at risk as soon as their products are approved by the FDA, which could occur following the expiry of the stay of regulatory approval under the Hatch-Waxman Act that currently prevents the FDA from granting final approval before January 2020. 
EPOGEN®
Total EPOGEN® sales were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
EPOGEN® — U.S.
$219
 $244
 (10)%
The decrease in EPOGEN® sales for the three months ended March 31, 2019, was driven primarily by a decline in net selling price due to our contract with DaVita Inc. In 2019, we expect a lower net selling price compared with 2018.
Our final material U.S. patent for EPOGEN® expired in May 2015. We face competition in the United States,, which has had and will continue to have a material adverse impact on sales of EPOGEN®. Multiple companies are developing proposedsales. We also expect other biosimilar versions of EPOGEN®. A biosimilar version of EPOGEN® wasto be approved in the second quarter of 2018 and launched in the fourth quarter of 2018. Other biosimilar versions of EPOGEN® may also receive approval.near future. For a discussion of ongoing patent litigation with one oflitigations related to these companies,and other biosimilars, see Note 20,13, Contingencies and commitments, to the condensed consolidated financial statements and Note 19, Contingencies and commitments, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2018.2019.

SensiparXGEVA®
Total XGEVA®/Mimpara®
Total Sensipar®/Mimpara® sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2019 2018 Change
Sensipar® — U.S.
$135
 $409
 (67)%
Sensipar®/Mimpara® — ROW
78
 88
 (11)%
Total Sensipar®/Mimpara®
$213
 $497
 (57)%
 Three months ended
March 31,
  
 2020 2019 Change
XGEVA® — U.S.
$355
 $356
 %
XGEVA® — ROW
126
 115
 10%
Total XGEVA®
$481
 $471
 2%
The decreaseincrease in global SensiparXGEVA®/Mimpara®sales for the three months ended March 31, 2019,2020, was driven primarily by higher unit demand and net selling price, offset partially by unfavorable changes to estimated sales deductions and inventory.
Otezla®
Total Otezla® sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2020 2019 Change
Otezla® — U.S.
$377
 $
 *
Otezla® — ROW
102
 
 *
Total XGEVA®
$479
 $
 *
* Change in excess of 100%.
Otezla® was acquired on November 21, 2019 and generated $479 million in sales for the impactthree months ended March 31, 2020.
Aranesp®
Total Aranesp® sales by geographic region were as follows (dollar amounts in millions):
 Three months ended
March 31,
  
 2020 2019 Change
Aranesp® — U.S.
$175
 $182
 (4)%
Aranesp® — ROW
247
 232
 6 %
Total Aranesp®
$422
 $414
 2 %
The increase in global Aranesp® sales for the three months ended March 31, 2020, was driven by higher unit demand and favorable changes in inventory, offset by a decline in net selling price.
Aranesp® faces competition from a long-acting erythropoiesis-stimulating agent (ESA). Aranesp®also faces competition from a biosimilar version of at-risk launchesEPOGEN®. Other biosimilar versions of EPOGEN® may also receive approval in the future. For the remainder of 2020, we expect sales to decline at a faster rate than in 2019 due to short- and long-acting competition.

KYPROLIS®
Total KYPROLIS® sales by generic competitorsgeographic region were as follows (dollar amounts in millions):
 Three months ended
March 31, 2020
  
 2020 2019 Change
KYPROLIS® — U.S.
$187
 $154
 21%
KYPROLIS® — ROW
93
 91
 2%
Total KYPROLIS®
$280
 $245
 14%
The increase in global KYPROLIS® sales for the three months ended March 31, 2020, was driven by higher unit demand and to a lesser extent changesan increase in inventory.net selling price.
Our U.S. composition-of-matter patent related to Sensipar®, a small molecule, expired in March 2018. We are involvedengaged in litigation with a number oftwo related companies that are challenging our material patents related to KYPROLIS® and that are seeking to market generic cinacalcetcarfilzomib products. Separately, we have entered into confidential settlement agreements with other companies developing generic carfilzomib products, surroundingand the court has entered consent judgments enjoining those companies from infringing certain of our U.S. formulation patent that expires in September 2026.patents, subject to terms of the confidential settlement agreements. See Note 13, Contingencies and commitments, to the condensed consolidated financial statements. Certain manufacturersstatements and Note 19, Contingencies and commitments, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2019. The FDA has reported that it has tentatively approved ANDAs filed by two companies for generic carfilzomib products. The date of generics began selling their productsfinal approval of those ANDAs is governed by the Hatch-Waxman Act and any applicable settlement agreements between the parties.
Repatha®
Total Repatha® sales by geographic region were as follows (dollar amounts in the United Statesmillions):
 Three months ended
March 31, 2020
  
 2020 2019 Change
Repatha® — U.S.
$124
 $83
 49%
Repatha® — ROW
105
 58
 81%
Total Repatha®
$229
 $141
 62%
The increase in late 2018 and early 2019, and some of this generic product remains commercially available in the United States from third-party distributors. We believe our product global Repatha® sales for Sensipar® have already been and may continue to be adversely impacted as a result of generic product sales in the U.S. market.three months ended March 31, 2020, was driven primarily by higher unit demand, offset partially by lower net selling price.
In 2019, we expect Sensipar® sales will be lower than in 2018 due to existing and potential future generic-market entries, continued adoption of Parsabiv® and higher purchases in 2018 due to the reimbursement change from Medicare Part D to Part B.
Other products
Other product sales by geographic region were as follows (dollar amounts in millions):
Three months ended
March 31,
  Three months ended
March 31,
  
2019 2018 Change2020 2019 Change
Nplate®— U.S.
$114
 $112
 2 %$127
 $114
 11 %
Nplate®— ROW
75
 67
 12 %91
 75
 21 %
Vectibix®— U.S.
78
 75
 4 %80
 78
 3 %
Vectibix®— ROW
92
 94
 (2)%122
 92
 33 %
Repatha®— U.S.
83
 84
 (1)%
Repatha®— ROW
58
 39
 49 %
Parsabiv® — U.S.
109
 36
 *
146
 109
 34 %
Parsabiv® — ROW
17
 5
 *
29
 17
 71 %
EPOGEN® — U.S.
155
 219
 (29)%
Sensipar® — U.S.
42
 135
 (69)%
Sensipar®/Mimpara® — ROW
81
 78
 4 %
KANJINTI®— U.S.
96
 
 *
KANJINTI®— ROW
23
 24
 (4)%
MVASI®— U.S.
108
 
 *
MVASI®— ROW
7
 
 *
EVENITY® — U.S.
37
 
 *
EVENITY®— ROW
63
 17
 *
BLINCYTO® — U.S.
57
 40
 43 %
BLINCYTO® — ROW
37
 29
 28 %
AMGEVITATM — ROW
86
 31
 *
Aimovig® — U.S.
71
 59
 20 %
NEUPOGEN®— U.S.
50
 65
 (23)%45
 50
 (10)%
NEUPOGEN®— ROW
23
 38
 (39)%20
 23
 (13)%
BLINCYTO® — U.S.
40
 30
 33 %
BLINCYTO® — ROW
29
 19
 53 %
Aimovig® — U.S.
59
 
 *
Biosimilars — ROW55
 
 *
Other — U.S.23
 19
 21 %24
 23
 4 %
Other — ROW55
 44
 25 %40
 38
 5 %
Total other products$960
 $727
 32 %$1,587
 $1,251
 27 %
Total U.S. — other products$556
 $421
 32 %$988
 $827
 19 %
Total ROW — other products404
 306
 32 %599
 424
 41 %
Total other products$960
 $727
 32 %$1,587
 $1,251
 27 %
* Change in excess of 100%.


Operating expenses
Operating expenses were as follows (dollar amounts in millions):
Three months ended
March 31,
  Three months ended
March 31,
  
2019 2018 Change2020 2019 Change
Operating expenses:          
Cost of sales$1,055
 $944
 12%$1,513
 $1,055
 43%
% of product sales20.0% 17.7%  25.7% 20.0%  
% of total revenues19.0% 17.0%  24.6% 19.0%  
Research and development$879
 $760
 16%$952
 $879
 8%
% of product sales16.6% 14.2%  16.2% 16.6%  
% of total revenues15.8% 13.7%  15.5% 15.8%  
Selling, general and administrative$1,154
 $1,127
 2%$1,316
 $1,154
 14%
% of product sales21.8% 21.1%  22.3% 21.8%  
% of total revenues20.8% 20.3%  21.4% 20.8%  
Other$(3) $(3) %$25
 $(3) *
* Change in excess of 100%.
Cost of sales
Cost of sales increased to 19.0%24.6% of total revenues for the three months ended March 31, 2019,2020, driven primarily by unfavorable product mixthe amortization of intangible assets as a result of our acquisition of Otezla® and higher manufacturing costs,an increase in milestone payments, offset partially by lower royaltymanufacturing costs. In 2019, product mix will continue to negatively impact cost of sales.
Research and development
The increase in R&D expense for the three months ended March 31, 2019, was driven primarily by increased spending in research and early pipeline in support of our oncology programs, as changes in late-stage programs and marketed products were not significant.
Selling, general and administrative
The increase in Selling, general and administrative expenses for the three months ended March 31, 2019,2020, was driven by higher late-stage program support for our oncology programs, primarily AMG 510 (sotorasib), along with Otezla® and higher marketed-product support for Otezla®, offset partially by recoveries from our collaboration with BeiGene that reduced other expenses in late-stage program support and in research and early pipeline.
Selling, general and administrative
The increase in SG&A expenses for the three months ended March 31, 2020, was driven primarily by investments in launch products.the first full quarter of Otezla® commercial-related expenses.
Other
Other operating expenses for the three months ended March 31, 2020, consisted of an impairment charge for an early-stage program. Other operating expenses for the three months ended March 31, 2019, and 2018, remained flat and included changes in the fair valuesvalue of contingent consideration and certain net charges related to our restructuring plan.
See the Overview and Selected financial information sections above for discussion of impacts to operating expenses from the COVID-19 pandemic.

Nonoperating expense/income and income taxes
Nonoperating expense/income and income taxes were as follows (dollar amounts in millions):
Three months ended
March 31,
Three months ended
March 31,
2019 20182020 2019
Interest expense, net$343
 $338
$346
 $343
Interest and other income, net$185
 $231
$11
 $185
Provision for income taxes$322
 $308
$195
 $322
Effective tax rate13.9% 11.8%9.7% 13.9%
Interest expense, net
The increase in Interest expense, net, for the three months ended March 31, 2019,2020, was due primarily to early debt retirement costs, offset partially by realized gains upon the impacttermination of risingassociated interest rates on variable-rate debt, offset byrate swaps, a reduction in averageoutstanding long-term debt outstanding.

and lower LIBOR rates on floating-rate debt.
Interest and other income, net
The decrease in Interest and other income, net, for the three months ended March 31, 20192020 was due primarily to the net gain recognized in connection with our acquisition of Kirin-Amgen, Inc., during the three months ended March 31, 2018 as well as reduced interest income as a result of lower average cash balances and marketable securities balances, offset partially by lower losses on sales of investments.a decline in interest yields.
Income taxes
The increasedecrease in our effective tax rate for the three months ended March 31, 2019,2020, was due primarily to amortization related to the Otezla® acquisition, changes in jurisdictional mix of earnings and certain favorable items in the quarter.
On March 27, 2020, in response to the COVID-19 pandemic, the president of the United States signed the Coronavirus Aid, Relief, and Economic Security (CARES) Act, which provides additional economic stimulus to address the impact of the COVID-19 pandemic. We do not expect there to be any significant benefit to our income tax provision as a prior-year tax benefit associated with intercompany sales under U.S. corporate tax reform.result of the CARES Act, and we continue to closely monitor the impact of the COVID-19 pandemic, as well as any effects that may result from the CARES Act or future legislation.
As previously disclosed, we received aan RAR from the IRS for the years 2010, 2011 and 2012. The RAR proposes to make significant adjustments that relate primarily to the allocation of profits between certain of our entities in the United States and the U.S. territory of Puerto Rico. In November 2017, we received a modified RAR that revised the IRS’s calculationcalculations but continued to propose substantial adjustments. We disagree with the proposed adjustments and calculations and are pursuing resolution with the IRS administrative appeals office, which currently has jurisdiction over the matter. If we deem necessary, we will vigorously contest the proposed adjustments through the judicial process. In addition, in April, we received draft NOPAs from the IRS for the years 2013, 2014 and 2015, which are similar to the proposed adjustments for the years 2010, 2011 and 2012 that relate primarily to the allocation of profits between certain of our entities in the United States and the U.S. territory of Puerto Rico. We disagree with the proposed adjustments and calculations and intend to contest them. Final resolution of thisthese complex mattermatters is not likely within the next 12 months and could have a material impact on our condensed consolidated financial statements. We believe our accrual for income tax liabilities is appropriate based on past experience, interpretations of tax law and judgments about potential actions by tax authorities; however, due to the complexity of the provision for income taxes, the ultimate resolution of any tax matters may result in payments substantially greater or less than amounts accrued.
See Note 3, Income taxes, to the condensed consolidated financial statements for further discussion.

Financial condition, liquidity and capital resources
Selected financial data was as follows (in millions):
March 31,
2019
 December 31,
2018
March 31,
2020
 December 31,
2019
Cash, cash equivalents and marketable securities$26,301
 $29,304
$8,012
 $8,911
Total assets$63,997
 $66,416
$61,669
 $59,707
Current portion of long-term debt$3,705
 $4,419
$1,840
 $2,953
Long-term debt$29,319
 $29,510
$30,008
 $26,950
Stockholders’ equity$10,832
 $12,500
$9,485
 $9,673
Cash, cash equivalents and marketable securities
We have global access to our $26.3$8.0 billion balance of cash, cash equivalents and marketable securities, as we no longer reinvest the related undistributed foreign earnings indefinitely outside the United States. As a result of U.S. corporate tax reform in 2017, we recorded a repatriation tax liability on undistributed earnings generated from operations in foreign tax jurisdictions, which will be paid over eight years. The first two annual payments were made in April 2018 and April 2019, and the remaining scheduled payments total $6.2 billion.
securities. The primary objective of our investment portfolio is to enhance overall returns in an efficient manner while maintainingmaintain safety of principal, prudent levels of liquidity and acceptable levels of risk. Our investment policy limits interest-bearing security investments to certain types of debt and money market instruments issued by institutions with primarily investment-grade credit ratings, and it places restrictions on maturities and concentration by asset class and issuer.
Capital allocation
Consistent with the objective to optimize our capital structure, we seek to deploy our accumulated cash balances in an efficienta strategic manner and we consider severala number of alternatives, such as payment of dividends, stock repurchases, repayment of debt andincluding strategic transactions (including those that expand our portfolio of products in areas of therapeutic interest.interest), repayment of debt, payment of dividends and stock repurchases.
We intend to continue to invest in our business while returning capital to stockholders through the payment of cash dividends and stock repurchases, thereby reflecting our confidence in the future cash flows of our business. The timing and amount of future dividends and stock repurchases will vary based on a number of factors, including future capital requirements for strategic transactions, availability of financing on acceptable terms, debt service requirements, our credit rating, changes to applicable tax laws or corporate laws, changes to our business model and periodic determination by our Board of Directors that cash dividends and/or

stock repurchases are in the best interests of stockholders and are in compliance with applicable laws and the Company’s agreements. In addition, the timing and amount of stock repurchases may also be affected by our overall level of cash, stock price and blackout periods, during which we are restricted from repurchasing stock. The manner of stock repurchases may include private block purchases, tender offers and market transactions.
In December 2018,2019, the Board of Directors declared a quarterly cash dividend of $1.45$1.60 per share of common stock, an increase of 10% from the cash dividend paid in each of the previous four quarters, which was paid on March 8, 2019.6, 2020. In March 2019,2020, the Board of Directors declared a quarterly cash dividend of $1.45$1.60 per share of common stock, which will be paid on June 7, 2019.8, 2020.
We have also returned capital to stockholders through our stock repurchase program. During the three months ended March 31, 2019,2020, we repurchased $3.0 billionexecuted trades to repurchase $933 million of common stock. As of March 31, 2019, $2.12020, $5.5 billion of authorityauthorization remained available under our stock repurchase program.
As a result of stock repurchases and quarterly dividend payments, we have an accumulated deficit as of March 31, 20192020 and December 31, 2018.2019. Our accumulated deficit is not expected to affect our future ability to operate, repurchase stock, pay dividends or repay our debt given our continuing profitability and strong financial position.
We believe that existing funds, cash generated from operations and existing sources of and access to financing are adequate to satisfy our needs for working capital;capital, capital expenditure and debt service requirements;requirements, our plans to pay dividends and repurchase stock;stock and other business initiatives we plan to strategically pursue, including acquisitions and licensing activities. We anticipate that our liquidity needs can be met through a variety of sources, including cash provided by operating activities, sales of marketable securities, borrowings through commercial paper and/or syndicated credit facilities and access to other domestic and foreign debt markets and equity markets. See our Annual Report on Form 10-K for the year ended December 31, 2018,2019, Part I, Item 1A. Risk Factors—Global economic conditions may negatively affect us and may magnify certain risks that affect our business.
Certain of our financing arrangements contain nonfinancial covenants. In addition, our revolving credit agreement includes a financial covenant, which requires that we maintain a specified minimum interest coverage ratio of (i) the sum of consolidated net income, interest expense, provision for income taxes, depreciation expense, amortization expense, unusual or nonrecurring charges and other noncash items (Consolidated EBITDA) to (ii) Consolidated Interest Expense, each as defined and described in the credit agreement. We were in compliance with all applicable covenants under these arrangements as of March 31, 2019.2020.

Cash flows
Our summarized cash flow activity was as follows (in millions):
Three months ended
March 31,
Three months ended
March 31,
2019 20182020 2019
Net cash provided by operating activities$1,845
 $2,727
$2,134
 $1,845
Net cash provided by investing activities$3,555
 $14,906
Net cash (used in) provided by investing activities$(230) $3,555
Net cash used in financing activities$(4,987) $(11,692)$(254) $(4,987)
Operating
Cash provided by operating activities has been and is expected to continue to be our primary recurring source of funds. Cash provided by operating activities during the three months ended March 31, 2019, decreased2020, increased compared with the same period in the prior year due primarily to an increasemonetization of interest rate swap contracts, a decrease in sales deductions paid to customers and lower net income.corporate partner payments, offset partially due to timing of collections from customers as a result of our recent acquisition of Otezla®.
Investing
Cash used in investing activities during the three months ended March 31, 2020, was due primarily to our $2.6 billion equity investment in BeiGene, offset substantially by net cash inflows related to marketable securities of $2.6 billion. Cash provided by investing activities during the three months ended March 31, 2019, and 2018, was due primarily to net cash inflows related to marketable securities of $3.7 billion and $14.9 billion, respectively. Higher cash inflows in the prior year reflects the cash to fund a $10.0 billion tender offer completed in 2018 to repurchase our common stock.billion. Capital expenditures whichfor the three months ended March 31, 2020 and 2019, were associated primarily with site development costs, including$142 million and $116 million, respectively. We now estimate reduced 2020 spending on capital projects of approximately $600 million versus our Thousand Oaks, California, campus, as well asprior projection of $700 million due to a change in timing from the next-generation biomanufacturing facilityCOVID-19 pandemic.
Financing
Cash used in Rhode Island and life cycle investments across the manufacturing networkfinancing activities during the three months ended March 31, 2019 and 2018, were $1162020, was due primarily to repayment of debt of $3.3 billion, payments to repurchase our common stock of $961 million and $155payment of dividends of $945 million, respectively. We currently estimate 2019 spending on capital projects to be approximately $700 million.

Financing
offset by net proceeds from the issuance of debt of $5.0 billion. Cash used in financing activities during the three months ended March 31, 2019, was due primarily to repurchases ofpayments to repurchase our common stock of $3.0 billion, repayment of debt of $1.0 billion and the payment of dividends of $0.9 billion. Cash used in financing activities during the three months ended March 31, 2018, was due primarily to repurchases of our common stock of $10.7 billion and the payment of dividends of $1.0 billion.$901 million. See Note 9, Financing arrangements, and Note 10, Stockholders’ equity, to the condensed consolidated financial statements for further discussion.
Critical accounting policies
The preparation of our condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the notes to the financial statements. Some of those judgments can be subjective and complex, and therefore, actual results could differ materially from those estimates under different assumptions or conditions. A summary of our critical accounting policies is presented in Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, of our Annual Report on Form 10-K for the year ended December 31, 2018. There were no material changes to our critical accounting policies during2019.
During the three months ended March 31, 2019.2020, our critical accounting policies were changed to include our assessment of impairment of equity method investments. We review the carrying value of our equity method investments whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. We record impairment losses on our equity method investments if we deem the impairment to be other-than-temporary. We deem an impairment to be other-than-temporary based on various factors, including but not limited to, the length of time and the extent to which the fair value is below the carrying value, volatility of the security price, the financial condition of the issuer, changes in technology that may impair the earnings potential of the investment and our intent and ability to retain the investment to allow for a recovery in fair value. We believe our judgments used in assessing impairment of equity method investments are based on reasonable assumptions given the facts and circumstances as of the related dates of the assessments.

Item 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Information about our market risk is disclosed in Part II, Item 7A. Quantitative and Qualitative Disclosures About Market Risk, of our Annual Report on Form 10-K for the year ended December 31, 2018,2019, and is incorporated herein by reference. ThereExcept as noted below, there have been no material changes during the three months ended March 31, 2019,2020, to the information provided in Part II, Item 7A. Quantitative and Qualitative Disclosures About Market Risk, of our Annual Report on Form 10-K for the year ended December 31, 2018.2019.
During the three months ended March 31, 2020, we issued $5.0 billion in long-term debt with a weighted-average maturity of approximately 17 years and redeemed/repaid approximately $3.3 billion of debt, all with maturities of less than two years. These changes increased the sensitivity of fluctuations in fair value of our outstanding long-term debt resulting from changes in market interest rates. A hypothetical 100 basis point decrease in interest rates relative to interest rates at March 31, 2020 and December 31, 2019, would have resulted in increases of $3.7 billion and $3.0 billion, respectively, in the aggregate fair values of our outstanding long-term debt on each of these dates. These amounts do not consider the impact that hypothetical changes in interest rates would have on our associated interest rate swap and cross-currency swap contracts.
During the three months ended March 31, 2020, we terminated interest rate swaps with an aggregate notional amount of $5.2 billion with respect to certain of our long-term debt, which resulted in the receipt of $576 million of cash and reduced counterparty credit risk. Immediately following termination of these contracts, we entered into new interest rate swap agreements at then-current interest rates on the same $5.2 billion principal amount of notes. See Note 9, Financing arrangements, and Note 12, Derivative instruments, to the condensed consolidated financial statements for further discussion.
Item 4.CONTROLS AND PROCEDURES
We maintain “disclosure controls and procedures,” as such term is defined under the Securities Exchange Act Rule 13a-15(e), that are designed to ensure that information required to be disclosed in Amgen’s Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to Amgen’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosures. In designing and evaluating the disclosure controls and procedures, Amgen’s management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives and, in reaching a reasonable level of assurance, Amgen’s management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. We have carried out an evaluation under the supervision and with the participation of our management, including Amgen’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of Amgen’s disclosure controls and procedures. Based upon their evaluation and subject to the foregoing, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2019.2020.
Management determined that, as of March 31, 2019,2020, there were no changes in our internal control over financial reporting that occurred during the fiscal quarter then ended that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.


PART II — OTHER INFORMATION
Item 1.LEGAL PROCEEDINGS
See Note 13, Contingencies and commitments, to the condensed consolidated financial statements included in our Quarterly Report on Form 10-Q for the period ended March 31, 2019,2020, for discussions that are limited to certain recent developments concerning our legal proceedings. Those discussions should be read in conjunction with Note 20,19, Contingencies and commitments, to the consolidated financial statements in Part IV of our Annual Report on Form 10-K for the year ended December 31, 2018.2019.
Item 1A.RISK FACTORS
This report and other documents we file with the SEC contain forward-looking statements that are based on current expectations, estimates, forecasts and projections about us, our future performance, our business, our beliefs and our management’s assumptions. These statements are not guarantees of future performance, and involve certain risks, uncertainties and assumptions that are difficult to predict. You should carefully consider the risks and uncertainties our business faces. We have described in our Annual Report on Form 10-K for the year ended December 31, 2018,2019, the primary risks related to our business, and we periodically update those risks for material developments. Those risks are not the only ones we face. Our business is also subject to the risks that affect many other companies, such as employment relations, general economic conditions, geopolitical events, international operations and international operations.the effects of pandemics. Further, additional risks not currently known to us or that we currently believe are immaterial may in the future materially and adversely affect our business, operations, liquidity and stock price.
ThereBelow, we are noproviding, in supplemental form, the material updates from thechanges to our risk factors previouslythat occurred during the past quarter. Our risk factors disclosed in Part I, Item 1A, of our Annual Report, on Form 10-K for the year ended December 31, 2018.2019, provide additional disclosure for these supplemental risks and are incorporated herein by reference.
The COVID-19 pandemic, and the public and governmental effort to mitigate against the spread of the disease, have had, and are expected to continue to have, an adverse effect, and may have a material adverse effect, on our clinical trials, operations, supply chains, distribution systems, product development, product sales, business and results of operations.
The novel coronavirus identified in late 2019, SARS-CoV-2, which causes the disease known as COVID-19, is an ongoing global pandemic that has resulted in public and governmental efforts to contain or slow the spread of the disease, including widespread shelter-in-place orders, social distancing interventions, quarantines, travel restrictions and various forms of operational shutdowns. The COVID-19 pandemic and the resulting measures implemented in response to the pandemic is adversely affecting, and is expected to continue to adversely affect, a number of our business activities (including our clinical trials, operations, supply chains, distribution systems, product development and sales) as well as our suppliers, customers, third-party payers and patients. Due to these measures and their effects, we have experienced, and expect to continue to experience, unpredictable reductions in demand for certain of our products, and, in some cases, have experienced, and could continue to experience, unpredictable increases in demand for certain of our products.
Our clinical trials have been, and are expected to continue to be, adversely affected by the COVID-19 pandemic. We have clinical work ongoing at investigational sites across around the globe. An increasing number of clinical trial sites have restricted site visits and have imposed restrictions on the initiation of new clinical trials and patient visits, to protect both site staff and patients from possible COVID-19 exposure. In response to the safety concerns related to COVID-19, we have suspended enrollment and screening in clinical trials where sites are unable to perform clinical trial work due to COVID-19 or there is uncertainty around the ability of sites to ensure subject safety or data integrity. Further, the COVID-19 pandemic is expected to adversely affect our ability to continue enrollment of certain required post-marketing studies, including pediatric studies. The disruption caused by the COVID-19 pandemic to our clinical trials and our clinical trial plans and timelines may have a significant adverse effect on our product development and launches, and, in turn, on future product sales, business and results of operations. For example, we reported a pause in enrollment of our AMG 510 (sotorasib) Phase 1 combination study with Keytruda and Phase 3 confirmatory study to ensure patient safety and that such pause may impact the timelines of these studies. Additionally, while we are investing in research and collaborations to potentially develop treatments for COVID-19, such activities may not result in therapeutic candidates, product approvals and/or significant commercial value being derived from potential COVID-19-related medicines.

We anticipate that the COVID-19 pandemic may result in regulatory delays, including delays in receiving regulatory advice, reviews of applications, or performance of inspections required for approvals. The pandemic may also result in greater regulatory uncertainty. For example, the FDA and the European Medicines Agency have issued guidance to provide biopharmaceutical manufacturers greater flexibility in certain regulatory areas, including protocol deviations and adverse event reporting. However, such flexibility may result in greater uncertainty regarding the expectations of such health authorities in relation to this guidance. Additionally, there may be delays in ongoing or new patent office or court patent proceedings in the U.S. or internationally that may delay the outcome of such proceedings. Such delays and disruptions may have a significant adverse effect on our product development and launches, product sales, business and results of operations.
In response to COVID-19, we have activated our business continuity plans, including suspending all U.S. in-person meetings and interactions with the healthcare community and professionals, all international business travel and the majority of domestic travel within the U.S. and all U.S. employees who are able to work from home have been doing so since mid-March 2020. Our ability to perform critical functions and maintain operations could be adversely affected as a result of such workforce restrictions, and the COVID-19-related support programs we have put into place for our staff, suppliers and customers are increasing our operating expenses and reducing the efficiency of our operations. Additionally, disruptions in public and private infrastructure, including transportation and supply chains, have further adversely affected the efficiency of our business operations. Also, the transition of the majority of our workforce to a remote work environment in response to COVID-19, as have a number of our third-party service providers, may exacerbate certain risks to our business, including an increased demand for information technology resources, increased risk of social engineering and other cybersecurity attacks, and increased risk of unauthorized dissemination of sensitive personal information or proprietary or confidential information about us or our service providers or other third-parties. For example, in April 2020, a vendor that provides information technology services to us experienced a cybersecurity incident that required us to disconnect our systems from this vendor. While we do not believe this cybersecurity incident has had a significant adverse effect on our operations, an extended service outage, particularly where a vendor is the single source from which we obtain services, or where a cybersecurity incident significantly affects the operation of our systems, could have a material adverse effect on our business. We may experience significant adverse effects on our commercial and clinical manufacturing activities, our operations, and our cybersecurity, and our suppliers and vendors may experience significant disruptions to their manufacturing activities and operations, and cybersecurity, as a result of the COVID-19 pandemic.
Federal, state and local, and international governmental policies and initiatives designed to reduce the transmission of COVID-19 also have resulted in the cancellation of diagnostic, elective, specialty and other procedures and appointments to avoid non-essential patient exposure to medical environments and potential infection with COVID-19 and to focus limited resources and personnel capacity toward the treatment of COVID-19. These measures and challenges will likely continue for the duration of the pandemic, which is uncertain, and have significantly reduced patient access to and administration of certain of our drugs. For example, Prolia® is a product requiring administration by a healthcare provider in doctors’ offices or other healthcare settings that are affected by COVID-19. The U.S. label for Prolia® instructs healthcare professionals who discontinue Prolia® to transition the patient to an alternative antiresorptive, including oral treatments that do not require administration by a healthcare provider. Further, as a result of COVID-19, oncology patients, in consultation with their doctors, may be selecting less immunosuppressive therapies or therapies that do not require administration in a hospital setting, potentially adversely affecting certain of our products. Our general medicine products have benefited from 90-day supply availability for existing patients but new patients are less likely to be diagnosed and/or to start these therapeutics during the pandemic. Once the pandemic subsides, we anticipate there will be a substantial backlog of patients seeking appointments with physicians relating to a variety of medical conditions, and as a result, patients seeking treatment with certain of our products may have to navigate limited provider capacity and this limited provider capacity could have a continued adverse effect on our sales following the end of the pandemic. Further, the effects of the COVID-19 pandemic may result in long-term shifts in preferences among healthcare professionals and patients toward treatments that do not require administration by healthcare professionals or visits to medical facilities.

The legislative and regulatory environment governing our businesses is dynamic and changing frequently in response to COVID-19. Several states have taken action to help patients maintain access to prescription drugs during the COVID-19 pandemic including requiring state-regulated commercial plans to cover 90-day fills and emergency fills in certain circumstances. At the federal level, legislation has been proposed seeking to incentivize greater drug manufacturing in the United States with the stated goal of improving supply reliability in the United States. One such legislative proposal would prohibit the U.S. Department of Veterans Affairs from purchasing certain drugs that have active pharmaceutical ingredients manufactured outside the United States. While we perform a substantial majority of our commercial manufacturing activities in the U.S., including in the U.S. territory of Puerto Rico, and a substantial majority of our clinical manufacturing activities at our facility in Thousand Oaks, California, the passage of such legislation could result in foreign governments enacting retaliatory legislation or regulatory actions, which may have an adverse effect on our product sales, business and results of operations internationally. The COVID-19 pandemic has also resulted in increased interest in compulsory licenses, march-in rights or other governmental interventions, both in the U.S. and internationally, related to the procurement of drugs. Pursuant to the declaration of a national emergency in March 2020 under the Stafford Act, state and local governments may request access to discounted pricing for certain items related to the COVID-19 response. The CARES Act implements initiatives to provide advanced payments from Medicare to healthcare providers, clinics and physicians and to require Medicare plans to provide up to a 90-day supply of Part D drugs. However, despite such initiatives and government support, there may be adverse effects on the timing and collectability of our customer receivables as a result of the COVID-19 pandemic. The COVID-19 pandemic has also resulted in a significant increase in unemployment in the United States which may continue after the pandemic. Such a significant increase in unemployment is expected to lead to a substantial reduction in disposable income and access to health insurance which could adversely affect our product sales. Further, the substantial pressures placed on governmental and payor budgets as a result of the COVID-19 pandemic and the projected governmental budget shortfalls caused by significantly reduced economic activity during and potentially after the COVID-19 pandemic may result in greater and continued downward price pressure on biopharmaceutical products and increased intensity of stakeholder negotiations across the biopharmaceutical value chain.
In recent weeks, the continued global spread of COVID-19 has also led to disruption and volatility in the global capital markets. We have certain assets, including equity investments, that are exposed to market fluctuations that could, in a sustained market disruption, result in impairments. Further, the economic downturn resulting from this global pandemic may be of an extended duration and precipitate a global recession.
If the pandemic continues and conditions worsen, we expect to experience additional adverse effects on our operational and commercial activities, customer purchases and our collections of accounts receivable, which adverse effects may be material, and it remains uncertain the degree to which these adverse effects would impact our future operational and commercial activities, customer purchases and our collections even if conditions begin to improve. In addition to existing travel restrictions, jurisdictions may continue to close borders, impose prolonged quarantines and further restrict travel and business activity, which could significantly affect our ability to support our operations and customers and the ability of our employees to get to their workplaces to discover, study, develop and produce our product candidates and products, and disrupt the movement of our products through the supply chain. Further, in connection with the global outbreak and spread of COVID-19 and in an effort to increase the wider availability of needed medical products, we or our suppliers may elect to, or governments may require us, or our suppliers to, allocate manufacturing capacity (for example pursuant to the U.S. Defense Production Act) in a way that adversely affects our regular operations, customer relationships, and financial results. In addition, unpredictable increases in demand for certain of our products could exceed our capacity to meet such demand, which could adversely affect our financial results and customer relationships.
The rapid development and fluidity of this situation precludes any prediction as to the ultimate effect on us of COVID-19. The duration of the measures being taken by the authorities to mitigate against the spread of COVID-19, and the extent to which such measures are effective, if at all, remain highly uncertain. We believe the magnitude and degree of COVID-19’s adverse effect on our product development, product sales, businesses, operating results, cash flows and financial condition will be driven by the severity and duration of the pandemic, the pandemic’s effect on the U.S. and global economies and the timing, scope and effectiveness of federal, state, local and international governmental responses to the pandemic. However, if the spread continues on at or near, its current trajectory or mitigation continues to require similar levels of shelter-in-place and shut-down orders, such effect will grow and our product development, product sales, business, results of operations, cash flows and financial position could be materially adversely affected.

Item 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
During the three months ended March 31, 2019,2020, we had one outstanding stock repurchase program, under which the repurchase activity was as follows:
Period 
Total number
of shares
purchased
 
Average
price paid
per share (1)
 
Total number
of shares purchased
as part of publicly announced program
 
Maximum dollar
value that may
yet be purchased
under the program(2)
 
Total number
of shares
purchased
 
Average
price paid
per share (1)
 
Total number
of shares purchased
as part of publicly announced program
 
Maximum dollar
value that may
yet be purchased
under the program(2)
January 1 - 31 6,172,485
 $196.80
 6,172,485
 $3,899,713,218
 1,362,200
 $233.67
 1,362,200
 $6,155,729,344
February 1 - 28 4,566,600
 $187.66
 4,566,600
 $3,042,730,429
February 1 - 29 1,707,100
 $220.32
 1,707,100
 $5,779,612,845
March 1 - 31 5,116,400
 $187.58
 5,116,400
 $2,082,993,130
 1,184,327
 $201.66
 1,184,327
 $5,540,776,983
Total 15,855,485
 $191.19
 15,855,485
   4,253,627
 $219.40
 4,253,627
  
___________ 
(1) 
Average price paid per share includes related expenses.
(2) 
In December 2018,2019, our Board of Directors increased the amount authorized under our stock repurchase program by an additional $3.6$4.0 billion.
Item 6. EXHIBITS
Reference is made to the Index to Exhibits included herein.


INDEX TO EXHIBITS
Exhibit No. Description
2.1
Asset Purchase Agreement, dated August 25, 2019, by and between Amgen Inc. and Celgene Corporation. (Filed as an exhibit to Form 8-K on August 26, 2019 and incorporated herein by reference.)
2.2
Amendment No. 1 to the Asset Purchase Agreement, dated October 17, 2019, by and between Amgen Inc. and Celgene Corporation. (Filed as an exhibit to Form 8-K on October 17, 2019 and incorporated herein by reference.)
2.3
Amendment No. 2 to the Asset Purchase Agreement, dated October 17, 2019, by and between Amgen Inc. and Celgene Corporation.(Filed as an exhibit to Form 10-K for the year ended December 31, 2019 on February 12, 2020 and incorporated herein by reference.)
2.4
Letter Agreement, dated November 21, 2019, by and between Amgen Inc. and the parties named therein re: Treatment of Certain Product Inventory in connection with Amgen’s acquisition of Otezla®. (Filed as an exhibit to Form 10-K for the year ended December 31, 2019 on February 12, 2020 and incorporated herein by reference.)
2.5
Irrevocable Guarantee, dated August 25, 2019, by and between Amgen Inc. and Bristol-Myers Squibb Company. (Filed as an exhibit to Form 8-K on August 26, 2019 and incorporated herein by reference.)
3.1 
Restated Certificate of Incorporation of Amgen Inc. (As Restated March 6, 2013.) (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2013 on May 3, 2013 and incorporated herein by reference.)
   
3.2 
Amended and Restated Bylaws of Amgen Inc. (As Amended and Restated February 15, 2016.) (Filed as an exhibit to Form 8-K on February 17, 2016 and incorporated herein by reference.)
   
4.1 
Form of stock certificate for the common stock, par value $.0001 of the Company. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 1997 on May 14, 1997 and incorporated herein by reference.)
   
4.2 Form of Indenture, dated January 1, 1992. (Filed as an exhibit to Form S-3 Registration Statement filed on December 19, 1991 and incorporated herein by reference.)
   
4.3 
Agreement of Resignation, Appointment and Acceptance dated February 15, 2008. (Filed as an exhibit to Form 10-K for the year ended December 31, 2007 on February 28, 2008 and incorporated herein by reference.)
   
4.4 
First Supplemental Indenture, dated February 26, 1997. (Filed as an exhibit to Form 8-K on March 14, 1997 and incorporated herein by reference.)
   
4.5 
8-1/8% Debentures due April 1, 2097. (Filed as an exhibit to Form 8-K on April 8, 1997 and incorporated herein by reference.)
   
4.6 
   
4.7 
Indenture, dated August 4, 2003. (Filed as an exhibit to Form S-3 Registration Statement on August 4, 2003 and incorporated herein by reference.)
   
4.8 
Corporate Commercial Paper - Master Note between and among Amgen Inc., as Issuer, Cede & Co., as Nominee of The Depository Trust Company, and Citibank, N.A., as Paying Agent. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 1998 on May 13, 1998 and incorporated herein by reference.)
   
4.9 
   
4.10 
   
4.11 
   
4.12 
   
4.13 
4.14
4.15
4.16
   

4.14
Officers’ Certificate of Amgen Inc., dated June 30, 2011, including form of the Company’s 5.65% Senior Notes due 2042. (Filed as an exhibit to Form 8-K on June 30, 2011 and incorporated herein by reference.)
4.15
4.16
Officers’ Certificate of Amgen Inc., dated December 5, 2011, including form of the Company’s 5.50% Senior Notes due 2026. (Filed as an exhibit to Form 8-K on December 5, 2011 and incorporated herein by reference.)
4.17 
   
4.18 
   
4.19 
Indenture, dated May 22, 2014, between Amgen Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee. (Filed as an exhibit to Form 8-K on May 22, 2014 and incorporated herein by reference.)
   
4.20 
   
4.21 
   
4.22 
   
4.23 
Form of Permanent Global Certificate for the Company’s 0.410% bonds due 2023. (Filed as an exhibit on Form 8-K on March 8, 2016 and incorporated herein by reference.)
   
4.24 
Terms of the Bonds for the Company’s 0.410% bonds due 2023. (Filed as an exhibit on Form 8-K on March 8, 2016 and incorporated herein by reference.)
   
4.25 
   
4.26 
   
4.27 
   
4.28 
Officer’s Certificate of Amgen Inc., dated as of November 2, 2017, including in the form of the Company’s 3.200% Senior Notes due 2027. (Filed as an exhibit to Form 8-K on November 2, 2017 and incorporated herein by reference.)
4.29
   
10.1+ 
Amgen Inc. Amended and Restated 2009 Equity Incentive Plan. (Filed as Appendix C to the Definitive Proxy Statement on Schedule 14A on April 8, 2013 and incorporated herein by reference.)
   
10.2+ 
First Amendment to Amgen Inc. Amended and Restated 2009 Equity Incentive Plan, effective March 4, 2015. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2015 on April 27, 2015 and incorporated herein by reference.)
   
10.3+ 
Second Amendment to Amgen Inc. Amended and Restated 2009 Equity Incentive Plan, effective March 2, 2016. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2016 on May 2, 2016 and incorporated herein by reference.)
   

10.4+ 
Form of Grant of Stock Option Agreement for the Amgen Inc. Amended and Restated 2009 Equity Incentive Plan. (As Amended on December 7, 2018.10, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 20182019 on February 13, 201912, 2020 and incorporated herein by reference.)
   
10.5+ 
Form of Restricted Stock Unit Agreement for the Amgen Inc. Amended and Restated 2009 Equity Incentive Plan. (As Amended on December 7, 2018.10, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 20182019 on February 13, 201912, 2020 and incorporated herein by reference.)
   
10.6+ 
Amgen Inc. 2009 Performance Award Program. (As Amended on December 12, 2017.) (Filed as an exhibit to Form 10-K for the year ended December 31, 2017 on February 13, 2018 and incorporated herein by reference.)
   

10.7+ 
Form of Performance Unit Agreement for the Amgen Inc. 2009 Performance Award Program. (As Amended on December 7, 2018.10, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 20182019 on February 13, 201912, 2020 and incorporated herein by reference.)
   
10.8+ 
Amgen Inc. 2009 Director Equity Incentive Program. (As Amended on October 24, 2017.December 11, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 20172019 on February 13, 201812, 2020 and incorporated herein by reference.)
   
10.9+ 
Form of Grant of Non-Qualified Stock Option Agreement for the Amgen Inc. 2009 Director Equity Incentive Program. (Filed as an exhibit to Form 8-K on May 8, 2009 and incorporated herein by reference.)
   
10.10+ 
Form of Restricted Stock Unit Agreement for the Amgen Inc. 2009 Director Equity Incentive Program. (As Amended on October 24, 2017.December 11, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 20172019 on February 13, 201812, 2020 and incorporated herein by reference.)
   
10.11+ 
Form of Cash-Settled Restricted Stock Unit Agreement for the Amgen 2009 Director Equity Incentive Program. (As Amended on December 11, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 20172019 on February 13, 201812, 2020 and incorporated herein by reference.)
   
10.12+ 
Amgen Inc. Supplemental Retirement Plan. (As Amended and Restated effective October 16, 2013.) (Filed as an exhibit to Form 10-K for the year ended December 31, 2013 on February 24, 2014 and incorporated herein by reference.)
   
10.13+ 
First Amendment to the Amgen Inc. Supplemental Retirement Plan, effective October 14, 2016. (Filed as an exhibit to Form 10-Q for the quarter ended September 30, 2016 on October 28, 2016 and incorporated herein by reference.)
   
10.14+ 
Second Amendment to the Amgen Inc. Supplemental Retirement Plan (As Amended and Restated effective October 23, 2019.) (Filed as an exhibit to Form 10-K for the year ended December 31, 2019 on February 12, 2020 and incorporated herein by reference.)
10.15+
Amended and Restated Amgen Change of Control Severance Plan. (As Amended and Restated effective December 9, 2010 and subsequently amended effective March 2, 2011.) (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2011 on May 10, 2011 and incorporated herein by reference.)
   
10.15+10.16+ 
Amgen Inc. Executive Incentive Plan. (As Amended and Restated effective January 1, 2009.) (Filed as an exhibit to Form 10-Q for the quarter ended September 30, 2008 on November 7, 2008 and incorporated herein by reference.)
   
10.16+10.17+ 
First Amendment to the Amgen Inc. Executive Incentive Plan, effective December 13, 2012. (Filed as an exhibit to Form 10-K for the year ended December 31, 2012 on February 27, 2013 and incorporated herein by reference.)
   
10.17+10.18+ 
Second Amendment to the Amgen Inc. Executive Incentive Plan, effective January 1, 2017. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2017 on April 27, 2017 and incorporated herein by reference.)
   
10.18+10.19+ 
Amgen Nonqualified Deferred Compensation Plan. (As Amended and Restated effective October 16, 2013.) (Filed as an exhibit to Form 10-K for the year ended December 31, 2013 on February 24, 2014 and incorporated herein by reference.)
   
10.19+10.20+ 
First Amendment to the Amgen Nonqualified Deferred Compensation Plan, effective October 14, 2016. (Filed as an exhibit to Form 10-Q for the quarter ended September 30, 2016 on October 28, 2016 and incorporated herein by reference.)
   
10.20+10.21+ 
Second Amendment to the Amgen Nonqualified Deferred Compensation Plan (As Amended and Restated effective January 1, 2020.) (Filed as an exhibit to Form 10-K for the year ended December 31, 2019 on February 12, 2020 and incorporated herein by reference.)
10.22+
Agreement between Amgen Inc. and David W. Meline, effective July 21, 2014. (Filed as an exhibit to Form 10-Q for the quarter ended September 30, 2014 on October 29, 2014 and incorporated herein by reference.)
   

10.21+
10.23+ 
Agreement between Amgen Inc. and Jonathan Graham, dated May 11, 2015. (Filed as an exhibit to Form 10-Q/A for the quarter ended June 30, 2015 on August 6, 2015 and incorporated herein by reference.)
   
10.22+10.24+ 
Agreement between Amgen Inc. and Lori Johnston, dated October 25, 2016. (Filed as an exhibit to Form 10-K for the year ended December 31, 2016 on February 14, 2017 and incorporated herein by reference.)
10.23+
Agreement between Amgen Inc. and Murdo Gordon, dated July 25, 2018. (Filed as an exhibit to Form 10-Q for the quarter ended September 30, 2018 on October 31, 2018 and incorporated herein by reference.)
   
10.2410.25+*† 
10.26
   
10.2510.27 
Amendment No. 1 to the Credit Agreement, dated March 9, 2018, among Amgen Inc., the Banks therein named, and Citibank, N.A., as administrative agent. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2018 on April 25, 2018 and incorporated herein by reference.)

10.26
Collaboration and License Agreement between Amgen Inc. and Celltech R&D Limited dated May 10, 2002 (portions of the exhibit have been omitted pursuant to a request for confidential treatment) and Amendment No. 1, effective June 9, 2003, to Collaboration and License Agreement between Amgen Inc. and Celltech R&D Limited (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-K/A for the year ended December 31, 2012 on July 31, 2013 and incorporated herein by reference.)
   
10.2710.28 
Amendment No. 2 to Collaboration and License Agreement, effective November 14, 2016, between Amgen Inc. and Celltech R&D Limited (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-K for the year ended December 31, 2016 on February 14, 2017 and incorporated herein by reference.)
   
10.2810.29 
Letter Agreement, dated June 25, 2019, by and between Amgen Inc. and UCB Celltech (portions of the exhibit have been omitted because they are both (i) not material and (ii) would be competitively harmful if publicly disclosed). (Filed as an exhibit to Form 10-Q for the quarter ended June 30, 2019 on July 31, 2019 and incorporated herein by reference.)
10.30
Collaboration Agreement, dated April 22, 1994, by and between Bayer Corporation (formerly Miles, Inc.) and Onyx Pharmaceuticals, Inc.(Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2011 by Onyx Pharmaceuticals, Inc. on May 10, 2011 and incorporated herein by reference.)
   
10.2910.31 
Amendment to Collaboration Agreement, dated April 24, 1996, by and between Bayer Corporation and Onyx Pharmaceuticals, Inc. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2006 by Onyx Pharmaceuticals, Inc. on May 10, 2006 and incorporated herein by reference.)
   
10.3010.32 
Amendment to Collaboration Agreement, dated February 1, 1999, by and between Bayer Corporation and Onyx Pharmaceuticals, Inc. (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2006 by Onyx Pharmaceuticals, Inc. on May 10, 2006 and incorporated herein by reference.)
   
10.3110.33 
Settlement Agreement and Release, dated October 11, 2011, by and between Bayer Corporation, Bayer AG, Bayer HealthCare LLC and Bayer Pharma AG and Onyx Pharmaceuticals, Inc. (Filed as an exhibit to Form 10-K for the year ended December 31, 2011 by Onyx Pharmaceuticals, Inc. on February 27, 2012 and incorporated herein by reference.)
   
10.3210.34 
Fourth Amendment to Collaboration Agreement, dated October 11, 2011, by and between Bayer Corporation and Onyx Pharmaceuticals, Inc. (Filed as an exhibit to Form 10-K for the year ended December 31, 2011 by Onyx Pharmaceuticals, Inc. on February 27, 2012 and incorporated herein by reference.)
   
10.3310.35 
Side Letter Regarding Collaboration Agreement, dated May 29, 2015, by and between Bayer HealthCare LLC and Onyx Pharmaceuticals, Inc. (Filed as an exhibit to Form 10-Q for the quarter ended June 30, 2015 on August 5, 2015 and incorporated herein by reference.)
   
10.3410.36* 
10.37
Sourcing and Supply Agreement, dated January 6, 2017, by and between Amgen USA Inc., a wholly owned subsidiary of Amgen Inc., and DaVita Inc. (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2017 on April 27, 2017 and incorporated herein by reference.)
   
10.3510.38 
Exclusive License and Collaboration Agreement, dated August 28, 2015, by and between Amgen Inc. and Novartis Pharma AG (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-Q for the quarter ended June 30, 2017 on July 26, 2017 and incorporated herein by reference.)
   

10.36
10.39 
Amendment No. 1 to the Exclusive License and Collaboration Agreement, dated April 21, 2017, by and between Amgen Inc. and Novartis Pharma AG (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-Q for the quarter ended June 30, 2017 on July 26, 2017 and incorporated herein by reference.)
   
10.3710.40 
Amendment No. 2 to the Exclusive License and Collaboration Agreement, dated April 21, 2017, by and between Amgen Inc. and Novartis Pharma AG (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-Q for the quarter ended June 30, 2017 on July 26, 2017 and incorporated herein by reference.)
   
10.3810.41 
Collaboration Agreement, dated April 21, 2017, by and between Amgen Inc. and Novartis Pharma AG (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-Q for the quarter ended June 30, 2017 on July 26, 2017 and incorporated herein by reference.)
   
10.3910.42 
Amendment No. 1 to the Collaboration Agreement, dated March 20, 2018, by and between Novartis Pharma AG and Amgen Inc. (portions of the exhibit have been omitted pursuant to a request for confidential treatment). (Filed as an exhibit to Form 10-Q for the quarter ended March 31, 2018 on April 25, 2018 and incorporated herein by reference.)
10.43
Collaboration Agreement, dated October 31, 2019, by and between Amgen Inc. and BeiGene Switzerland GmbH, a wholly-owned subsidiary of BeiGene, Ltd. (portions of the exhibit have been omitted because they are both (i) not material and (ii) would be competitively harmful if publicly disclosed). (Filed as an exhibit to Form 10-K for the year ended December 31, 2019 on February 12, 2020 and incorporated herein by reference.)
10.44
Guarantee, dated as of October 31, 2019, made by and among BeiGene, Ltd. and Amgen Inc. (Filed as an exhibit to Form 10-K for the year ended December 31, 2019 on February 12, 2020 and incorporated herein by reference.)
10.45
Share Purchase Agreement, dated October 31, 2019, by and between Amgen Inc. and BeiGene, Ltd. (portions of the exhibit have been omitted because they are both (i) not material and (ii) would be competitively harmful if publicly disclosed). (Filed as an exhibit to Schedule 13D on January 8, 2020 and incorporated herein by reference.)
10.46
Amendment No. 1 to Share Purchase Agreement, dated December 6, 2019, by and among BeiGene, Ltd. and Amgen Inc. (Filed as an exhibit to Schedule 13D on January 8, 2020 and incorporated herein by reference.)
10.47*
   
31* 
   
32** 
   

101.INS*101.INS XBRL Instance Document.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* XBRL Taxonomy Extension Schema Document.
   
101.CAL* XBRL Taxonomy Extension Calculation Linkbase Document.
   
101.DEF* XBRL Taxonomy Extension Definition Linkbase Document.
   
101.LAB* XBRL Taxonomy Extension Label Linkbase Document.
   
101.PRE* XBRL Taxonomy Extension Presentation Linkbase Document.
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).
____________________________
(* = filed herewith)
(** = furnished herewith and not “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended)
(+ = management contract or compensatory plan or arrangement)
(† = Peter Griffith became Executive Vice President and Chief Financial Officer of Amgen Inc. on January 1, 2020)



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly Report to be signed on its behalf by the undersigned, thereunto duly authorized.
  Amgen Inc.
  (Registrant)
    
Date:April 30, 20192020By: 
/S/    DAVID W. MELINEPETER H. GRIFFITH
    David W. MelinePeter H. Griffith
    Executive Vice President and Chief Financial Officer
    (Principal Financial and Accounting Officer)




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