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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

(Mark One)
[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2018March 31, 2019
OR
[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 1-3671

GENERAL DYNAMICS CORPORATION
(Exact name of registrant as specified in its charter)
Delaware 13-1673581
State or other jurisdiction of incorporation or organization I.R.S. employer identification no.
   
2941 Fairview Park Drive, Suite 100
Falls Church, Virginia
 22042-4513
Address of principal executive offices Zip code
(703) 876-3000
Registrant’s telephone number, including area code
    
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ü 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 ü 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 filer ü 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 ü
296,149,755288,871,990 shares of the registrant’s common stock, $1 par value per share, were outstanding on September 30, 2018.March 31, 2019.



INDEX

   
PART I -PAGE
Item 1 - 
 
 
 
 
 
 

Item 2 -
Item 3 -
Item 4 -
 
PART II -
Item 1 -
Item 1A -
Item 2 -
Item 6 -
 
            


PART I – FINANCIAL INFORMATION

ITEM 1. UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

CONSOLIDATED STATEMENT OF EARNINGS (UNAUDITED)

 Three Months Ended
(Dollars in millions, except per-share amounts)September 30, 2018 October 1, 2017
Revenue:   
Products$4,842
 $4,718
Services4,252
 2,862
 9,094
 7,580
Operating costs and expenses:   
Products(3,797) (3,635)
Services(3,610) (2,379)
General and administrative (G&A)(552) (503)
 (7,959) (6,517)
Operating earnings1,135
 1,063
Interest, net(114) (27)
Other, net2
 (9)
Earnings from continuing operations before income tax1,023
 1,027
Provision for income tax, net(159) (263)
Earnings from continuing operations864
 764
Discontinued operations, net of tax(13) 
Net earnings$851
 $764
    
Earnings per share   
Basic:   
Continuing operations$2.92
 $2.56
Discontinued operations(0.04) 
Net earnings$2.88
 $2.56
Diluted:   
Continuing operations$2.89
 $2.52
Discontinued operations(0.04) 
Net earnings$2.85
 $2.52
The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these financial statements.



CONSOLIDATED STATEMENT OF EARNINGS (UNAUDITED)

Nine Months EndedThree Months Ended
(Dollars in millions, except per-share amounts)September 30, 2018 October 1, 2017March 31, 2019 April 1, 2018
Revenue:      
Products$14,172
 $13,851
$5,251
 $4,576
Services11,643
 8,845
4,010
 2,959
25,815
 22,696
9,261

7,535
Operating costs and expenses:      
Products(11,045) (10,670)(4,235) (3,546)
Services(9,838) (7,381)(3,398) (2,444)
G&A(1,701) (1,469)
General and administrative (G&A)(614) (537)
(22,584) (19,520)(8,247) (6,527)
Operating earnings3,231
 3,176
1,014
 1,008
Interest, net(244) (76)(117) (27)
Other, net(34) (31)18
 (21)
Earnings from continuing operations before income tax2,953
 3,069
Earnings before income tax915

960
Provision for income tax, net(504) (793)(170) (161)
Earnings from continuing operations2,449
 2,276
Discontinued operations, net of tax(13) 
Net earnings$2,436
 $2,276
$745

$799
      
Earnings per share      
Basic:   
Continuing operations$8.27
 $7.59
Discontinued operations(0.04) 
Net earnings$8.23
 $7.59
Diluted:   
Continuing operations$8.16
 $7.45
Discontinued operations(0.04) 
Net earnings$8.12
 $7.45
Basic$2.59
 $2.70
Diluted$2.56
 $2.65
The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these financial statements.



CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED)

Three Months EndedNine Months EndedThree Months Ended
(Dollars in millions)September 30, 2018 October 1, 2017September 30, 2018 
October 1,
2017
March 31, 2019 April 1, 2018
Net earnings$851
 $764
$2,436
 $2,276
$745
 $799
Gains on cash flow hedges61
 138
40
 286
Unrealized gains on marketable securities
 1

 8
Gains (losses) on cash flow hedges17
 (3)
Foreign currency translation adjustments85
 128
(130) 409
31
 1
Change in retirement plans’ funded status84
 61
247
 193
63
 84
Other comprehensive income, pretax230
 328
157
 896
111
 82
Provision for income tax, net(33) (57)(60) (160)(16) (15)
Other comprehensive income, net of tax197
 271
97
 736
95
 67
Comprehensive income$1,048
 $1,035
$2,533
 $3,012
$840

$866
The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these financial statements.



CONSOLIDATED BALANCE SHEET

(Unaudited)  (Unaudited)  
(Dollars in millions)September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
      
ASSETS      
Current assets:      
Cash and equivalents$1,010
 $2,983
$673
 $963
Accounts receivable3,736
 3,617
3,718
 3,759
Unbilled receivables7,564
 5,240
7,367
 6,576
Inventories6,247
 5,303
6,185
 5,977
Other current assets1,401
 1,185
924
 914
Total current assets19,958
 18,328
18,867

18,189
Noncurrent assets:      
Property, plant and equipment, net4,244
 3,517
4,054
 3,978
Intangible assets, net2,667
 702
2,518
 2,585
Goodwill19,486
 11,914
19,668
 19,594
Other assets608
 585
2,359
 1,062
Total noncurrent assets27,005
 16,718
28,599

27,219
Total assets$46,963
 $35,046
$47,466

$45,408
      
LIABILITIES AND SHAREHOLDERS’ EQUITY      
Current liabilities:      
Short-term debt and current portion of long-term debt$1,678
 $2
$2,097
 $973
Accounts payable3,033
 3,207
3,008
 3,179
Customer advances and deposits7,327
 6,992
6,695
 7,270
Other current liabilities3,651
 2,898
3,582
 3,317
Total current liabilities15,689
 13,099
15,382

14,739
Noncurrent liabilities:      
Long-term debt11,403
 3,980
11,451
 11,444
Other liabilities7,116
 6,532
8,399
 7,493
Commitments and contingencies (see Note M)

 



 

Total noncurrent liabilities18,519
 10,512
19,850

18,937
Shareholders’ equity:      
Common stock482
 482
482
 482
Surplus2,914
 2,872
2,937
 2,946
Retained earnings28,691
 26,444
29,781
 29,326
Treasury stock(15,971) (15,543)(17,283) (17,244)
Accumulated other comprehensive loss(3,361) (2,820)(3,683) (3,778)
Total shareholders’ equity12,755
 11,435
12,234

11,732
Total liabilities and shareholders equity
$46,963
 $35,046
$47,466

$45,408
The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these financial statements.



CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)

Nine Months EndedThree Months Ended
(Dollars in millions)September 30, 2018 October 1, 2017March 31, 2019 April 1, 2018
Cash flows from operating activities - continuing operations:      
Net earnings$2,436
 $2,276
$745
 $799
Adjustments to reconcile net earnings to net cash provided by operating activities:  
  
Depreciation of property, plant and equipment352
 269
114
 89
Amortization of intangible assets190
 57
Amortization of intangible and finance lease right-of-use assets91
 20
Equity-based compensation expense110
 93
40
 29
Deferred income tax (benefit) provision(66) 155
Discontinued operations, net of tax13
 
Deferred income tax provision(10) 4
(Increase) decrease in assets, net of effects of business acquisitions:      
Accounts receivable472
 26
49
 (150)
Unbilled receivables(1,625) (1,361)(873) (608)
Inventories(854) 57
(210) (236)
Increase (decrease) in liabilities, net of effects of business acquisitions:      
Accounts payable(324) 167
(167) (358)
Customer advances and deposits112
 (296)(623) (149)
Income taxes payable250
 223
Other, net15
 216
49
 64
Net cash provided by operating activities1,081
 1,882
Net cash used by operating activities(795) (496)
Cash flows from investing activities:      
Business acquisitions, net of cash acquired(10,039) (364)
Capital expenditures(447) (273)(181) (104)
Other, net169
 52
(6) (1)
Net cash used by investing activities(10,317) (585)(187) (105)
Cash flows from financing activities:      
Proceeds from fixed-rate notes6,461
 985
Proceeds from (repayments of) commercial paper, net1,668
 (2)
Proceeds from floating-rate notes1,000
 
Proceeds from commercial paper, net1,010
 2,494
Dividends paid(801) (735)(268) (250)
Purchases of common stock(533) (1,172)(133) (267)
Repayment of CSRA accounts receivable purchase agreement(450) 
Other, net(68) 43
88
 (25)
Net cash provided (used) by financing activities7,277
 (881)
Net cash provided by financing activities697
 1,952
Net cash used by discontinued operations(14) (28)(5) (2)
Net (decrease) increase in cash and equivalents(1,973) 388
(290) 1,349
Cash and equivalents at beginning of period2,983
 2,334
963
 2,983
Cash and equivalents at end of period$1,010
 $2,722
$673
 $4,332
Supplemental cash flow information:      
Income tax payments, net$305
 $398
Income tax (payments) refunds, net$(37) $4
Interest payments$144
 $66
$(48) $(21)
The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these financial statements.



CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY (UNAUDITED)

Common Stock Retained Treasury 
Accumulated
Other 
Comprehensive
 
Total
Shareholders’    
Common Stock Retained Treasury 
Accumulated
Other 
Comprehensive
 
Total
Shareholders’    
(Dollars in millions)Par Surplus Earnings Stock Loss EquityPar Surplus Earnings Stock Loss Equity
December 31, 2017$482
 $2,872
 $26,444
 $(15,543) $(2,820) $11,435
Cumulative-effect adjustments (see Note A)
 
 638
 
 (638) 
December 31, 2018$482
 $2,946
 $29,326
 $(17,244) $(3,778) $11,732
Net earnings
 
 2,436
 
 
 2,436

 
 745
 
 
 745
Cash dividends declared
 
 (827) 
 
 (827)
 
 (290) 
 
 (290)
Equity-based awards
 42
 
 95
 
 137

 (9) 
 47
 
 38
Shares purchased
 
 
 (523) 
 (523)
 
 
 (86) 
 (86)
Other comprehensive income
 
 
 
 97
 97

 
 
 
 95
 95
September 30, 2018$482
 $2,914
 $28,691
 $(15,971) $(3,361) $12,755
March 31, 2019$482

$2,937

$29,781

$(17,283)
$(3,683)
$12,234
          

          

December 31, 2016$482
 $2,819
 $24,543
 $(14,156) $(3,387) $10,301
December 31, 2017$482
 $2,872
 $26,444
 $(15,543) $(2,820) $11,435
Cumulative-effect adjustment*
 
 (3) 
 
 (3)
 
 638
 
 (638) 
Net earnings
 
 2,276
 
 
 2,276

 
 799
 
 
 799
Cash dividends declared
 
 (758) 
 
 (758)
 
 (276) 
 
 (276)
Equity-based awards
 22
 
 127
 
 149

 (52) 
 58
 
 6
Shares purchased
 
 
 (1,137) 
 (1,137)
 
 
 (257) 
 (257)
Other comprehensive income
 
 
 
 736
 736

 
 
 
 67
 67
October 1, 2017$482
 $2,841
 $26,058
 $(15,166) $(2,651) $11,564
April 1, 2018$482
 $2,820
 $27,605
 $(15,742) $(3,391) $11,774
The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these financial statements.

* Reflects the cumulative effect of Accounting Standards Update (ASU) 2016-16,2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, and ASU 2018-02, Income TaxesStatement - Reporting Comprehensive Income (Topic 740)220): Intra-Entity TransfersReclassification of AssetsCertain Tax Effects from Accumulated Other Than Inventory,Comprehensive Income, which we adopted on January 1, 2017.2018.




NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in millions, except per-share amounts or unless otherwise noted)

A. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Organization. General Dynamics is a global aerospace and defense company that offers a broad portfolio of products and services in business aviation; combat vehicles, weapons systems and munitions; information technology (IT) services; C4ISR (command, control, communications, computers, intelligence, surveillance and reconnaissance) solutions; and shipbuilding and ship repair.
On April 3, 2018, we completed our acquisition of CSRA Inc. (CSRA). See Note B for further discussion of the acquisition. For segment reporting purposes, concurrent with the acquisition, our Information Systems and Technology operating segment was reorganized into the Information Technology and Mission Systems segments. Our company now has five operating segments: Aerospace, Combat Systems, Information Technology, Mission Systems and Marine Systems. We collectively refer to Combat Systems, Information Technology, Mission Systems and Marine Systems as our defense segments. Prior-period segment information has been restated for this change.
We are divesting certain non-core operations in our Information Technology segment. Accordingly, the assets and liabilities of these operations, including an estimated allocation of goodwill, were classified as held for sale on September 30, 2018. As we expect these operations to be divested within the next 12 months, the assets and liabilities held for sale are included in other current assets and liabilities on the unaudited Consolidated Balance Sheet.
Basis of Consolidation and Classification. The unaudited Consolidated Financial Statements include the accounts of General Dynamics Corporation and our wholly owned and majority-owned subsidiaries. We eliminate all inter-company balances and transactions in the unaudited Consolidated Financial Statements. Some prior-year amounts have been reclassified among financial statement accounts or disclosures to conform to the current-year presentation.
Consistent with industry practice, we classify assets and liabilities related to long-term contracts as current, even though some of these amounts may not be realized within one year.
Further discussion of our significant accounting policies is contained in the other notes to these financial statements.
Interim Financial Statements. The unaudited Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. These rules and regulations permit some of the information and footnote disclosures included in financial statements prepared in accordance with U.S. generally accepted accounting principles (GAAP) to be condensed or omitted.
Our fiscal quarters are 13 weeks in length. Because our fiscal year ends on December 31, the number of days in our first and fourth quarters varies slightly from year to year. Operating results for the three- and nine-month periodsthree-month period ended September 30, 2018,March 31, 2019, are not necessarily indicative of the results that may be expected for the year ending December 31, 2018.2019.
The unaudited Consolidated Financial Statements contain all adjustments that are of a normal recurring nature necessary for a fair presentation of our results of operations and financial condition for the three- and nine-monththree-month periods ended September 30, 2018,March 31, 2019, and OctoberApril 1, 2017.


2018.
These unaudited Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2017.
Discontinued Operations, Net of Tax. Concurrent with the acquisition of CSRA, we were required by a government customer to dispose of certain CSRA operations to address an organizational conflict of interest with respect to services provided to the customer. In the third quarter of 2018, we sold these operations. In accordance with GAAP, the sale did not result in a gain for financial reporting purposes. However, the sale generated a taxable gain, resulting in tax expense of $13.2018.
Accounting Standards Updates. OnEffective January 1, 2018,2019, we adopted the following accounting standards issued by the Financial Accounting Standards Board (FASB):
ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01 addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. Specific to our business, ASU 2016-01 requires equity investments to be measured at fair value with changes in fair value recognized in net income. The ASU eliminates the available-for-sale classification for equity investments that recognized changes in fair value as a component of other comprehensive income. We adopted the standard on a modified retrospective basis on January 1, 2018, and recognized the cumulative effect as a $24 increase to retained earnings on the date of adoption.
ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 is intended to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the Consolidated Statement of Cash Flows by providing guidance on eight specific cash flow issues. We adopted the standard retrospectively on January 1, 2018. The adoption of the ASU did not have a material effect on our cash flows for the nine-month period ended October 1, 2017.
ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. ASU 2017-07 requires the service cost component of net retirement benefit cost to be reported separately from the other components of net retirement benefit cost in the Consolidated Statement of Earnings. We adopted the standard retrospectively on January 1, 2018. Our restated operating earnings increased $11 and $33 for the three- and nine-month periods ended October 1, 2017, respectively, due to the reclassification of the non-service cost components of net benefit cost, and other income decreased by the same amount, with no impact to net earnings.
ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. ASU 2018-02 allows the reclassification from accumulated other comprehensive income to retained earnings of stranded tax effects resulting from the implementation of the Tax Cuts and Jobs Act (tax reform) enacted on December 22, 2017. We adopted the standard on January 1, 2018, and recognized a $614 increase to retained earnings on the date of adoption.
There are several other accounting standards that have been issued by the FASB but are not yet effective, including the following:
ASU 2016-02, Leases (Topic 842). ASU 2016-02Codification (ASC) Topic 842, Leases. ASC Topic 842 requires the recognition of lease rights and obligations as assets and liabilities on the balance sheet. Previously, lessees were not required to recognize on the balance sheet assets and liabilities arising from operating leases. As we elected the cumulative-effect adoption method, prior-period information has not been restated.
The ASU also requires disclosurestandard provided several optional practical expedients for use in transition. We elected to use what the Financial Accounting Standards Board (FASB) has deemed the “package of key informationpractical expedients,” which allowed us not to reassess our previous conclusions about lease identification, lease classification and the accounting treatment for initial direct costs. We did not elect the practical expedient pertaining to the use of hindsight.
The most significant effects of the standard on our Consolidated Financial Statements are (1) the recognition of new right-of-use assets and lease liabilities on our Consolidated Balance Sheet for our operating leases, and (2) significant new disclosures about our leasing arrangements. ASU 2016-02 is effective onactivities (see Note N). On January 1, 2019, using awe recognized operating lease liabilities and right-of-use assets of $1.4 billion based on the present


modified retrospective methodvalue of the remaining lease payments over the lease term. The adoption as of January 1, 2017. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements, that provides an alternative transition method of adoption, permitting the recognition ofdid not result in a cumulative-effect adjustment to retained earnings on the date of adoption.
We intend to adopt theearnings. The new standard on the effective date using the alternative transition method provided by ASU 2018-11. We are currently evaluating our population of leased assets in order to assess thedid not have a material impact of the ASU on our lease portfolio, and designing and implementing new processes and controls. Until this effort is completed, we cannot determine the effect of the ASU on our results of operations financial condition or cash flows.
ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU 2017-12 is intended to simplify hedgeFor a discussion of other accounting standards that have been issued by better aligning an entity’s financial reporting for hedging relationships with its risk management activities. The ASU also simplifies the application of the hedge accounting guidance. ASU 2017-12 isFASB but are not yet effective, on January 1, 2019, with early adoption permitted. For cash flow hedges existing at the adoption date, the standard requires adoption on a modified retrospective basis with a cumulative-effect adjustmentrefer to the Consolidated Balance Sheet as of the beginning ofAccounting Standards Updates section in our Annual Report on Form 10-K for the year of adoption. The amendments to presentation guidance and disclosure requirementsended December 31, 2018. These standards are required to be adopted prospectively. We intend to adopt the standard on the effective date, and we do not expect the adoption of the ASUexpected to have a material effectimpact on our results of operations financial condition or cash flows.

B. ACQUISITIONS AND DIVESTITURES, GOODWILL, AND INTANGIBLE ASSETS
CSRA Acquisition
On April 3, 2018, we acquired 100% of the outstanding shares of CSRA Inc. (CSRA) for $41.25 per share in cash.cash plus the assumption of outstanding net debt. CSRA has been combined with General Dynamics Information Technology (GDIT) to createis a premier provider of IT solutions to the defense, intelligence and federal civilian markets. Except where otherwise notedmarkets and is included in the Notes to Unaudited Consolidated Financial Statements, changes in balances and activity were generally driven by the CSRA acquisition.our Information Technology segment.
Purchase Price and Fair Value of Net Assets Acquired. The cash purchase price totaled $9.7 billion and consisted of the following:
CSRA shares outstanding (in millions)165.4
Cash consideration per CSRA share$41.25
Cash paid to purchase outstanding CSRA shares$6,825
Cash paid to extinguish CSRA debt2,846
Cash settlement of outstanding CSRA stock options and restricted stock units78
Total purchase price$9,749


The following table summarizes the preliminary allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed on the acquisition date, with the excess recorded as goodwill:
Cash and equivalents$45
$45
Accounts receivable145
155
Unbilled receivables718
420
Other current assets290
303
Property, plant and equipment, net684
326
Intangible assets, net2,069
2,066
Goodwill7,792
7,931
Other noncurrent assets20
369
Total assets$11,763
$11,615
Account payable$(136)$(135)
Customer advances and deposits(151)(151)
Current capital lease obligation(51)
Current lease obligation(51)
Other current liabilities(540)(434)
Noncurrent capital lease obligation(207)
Noncurrent lease obligation(207)
Noncurrent deferred tax liability(406)(356)
Other noncurrent liabilities(523)(532)
Total liabilities$(2,014)$(1,866)
Net assets acquired$9,749
$9,749


During the quarter, ended September 30, 2018, we continuedobtained additional information that resulted in adjustments to obtain information to refine the estimated fair values. The additional information obtained during the quarter didvalues that were not result in any material adjustments. However, these provisional amounts are subject to change as we complete the valuations throughout the measurement period, which will extend throughout 2018.material.
TheWe have valued $2.1 billion of estimated acquired intangible assets, which consists of acquired backlog and probable follow-on work and associated customer relationships (contract and program intangible assets), with a weighted-average life of 17 years. The intangible assets will beare being amortized using an accelerated method, which approximates the pattern of how the economic benefit is expected to be used. Under this method, approximately 50% of the aggregate value of the intangible assets will be amortized within six years. We expect to record amortization expense associated with these intangible assets overyears of the next five years as follows:
2018 (9 months post-acquisition)$188
2019204
2020195
2021154
2022136
acquisition date.
Goodwill represents the purchase price paid in excess of the fair value of net tangible and intangible assets acquired, and is attributable primarily to expected synergies, economies of scale and the assembled workforce of CSRA. Approximately $490 of this goodwill is pre-acquisition goodwill deductible for income tax purposes over its remaining tax life.
CSRA’s operating results have been included with our reported results since the acquisition date. As we immediately began integrating CSRA with GDIT following the acquisition, it is becoming increasingly


difficult to separate the results of legacy CSRA from those of the combined entity. Approximately $1.2 billion and $2.5 billion of revenue, $130 and $265 of operating earnings, and $140 and $285 of pretax earnings from legacy CSRA were included in our unaudited Consolidated Statement of Earnings for the three- and nine-month periods ended September 30, 2018, respectively. These amounts exclude amortization of intangible assets and acquisition financing.
In addition, we have recognized approximately $75 of one-time, acquisition-related costs, reported in operating costs and expenses and other income (expense) in the unaudited Consolidated Statement of Earnings.
Pro Forma Information. The following pro forma information presents our consolidated revenue and earnings from continuing operations as if the acquisition of CSRA and the related financing transactions had occurred on January 1, 2017:
 Three Months EndedNine Months Ended
 September 30, 2018 
October 1,
2017
September 30, 2018 
October 1,
2017
Revenue$9,094
 $8,799
$27,156
 $26,296
Earnings from continuing operations872
 776
2,470
 2,213
Diluted earnings per share from
continuing operations
$2.92
 $2.55
$8.23
 $7.24
The pro forma information was prepared by combining our reported historical results with the historical results of CSRA for the pre-acquisition periods. In addition, the reported historical amounts were adjusted for the following items, net of associated tax effects:
The impact of acquisition financing.
The removal of certain CSRA operations we were required by a government customer to dispose of to address an organizational conflict of interest with respect to services provided to the customer. We completed the sale of these operations in the third quarter of 2018.
The removal of CSRA’s historical pre-acquisition intangible asset amortization expense and debt-related interest expense.
The impact of intangible asset amortization expense assuming our current estimate of fair value was applied on January 1, 2017.
The payment of acquisition-related costs assuming they were incurred on January 1, 2017.
The pro forma information is based on the preliminary amounts allocated to the estimated fair value of net assets acquired and may be revised as the provisional amounts change. The pro forma information does not reflect the realization of expected cost savings or synergies from the acquisition, and does not reflect what our combined results of operations would have been had the acquisition occurred on January 1, 2017.
Other Acquisitions and Divestitures
In the first three months of 2019, we completed the acquisition of a business in each of our Aerospace and Missions Systems segments. In 2018, we acquired five businesses in addition to the acquisition of CSRA we acquired two businesses in the first nine months of 2018 for an aggregate of $335:approximately $400: Hawker Pacific, a leading provider of integrated aviation solutions across Asia Pacific and the Middle East, and two fixed-base operation (FBO) businesses in our Aerospace segment,segment; a maintenance and service provider for the German Army and other international customers in our Combat Systems segment; and a provider of specialized transmitters and receivers in our Mission Systems segment. In 2017, we acquired four businessesAs the purchase prices of these acquisitions were not material for an aggregatethe three-month periods ended March 31, 2019, and April 1, 2018, they are included in other investing activities, net, in the unaudited Consolidated Statement of $399: a fixed-base operation (FBO) in our Aerospace segment; a provider of mission-critical support services in our Information Technology segment; and a manufacturer of electronics and communications products and a manufacturer of signal distribution products in our Mission Systems segment.


Cash Flows.
The operating results of these acquisitions have been included with our reported results since the respective closing dates. The purchase prices of the acquisitions have been allocated to the estimated fair value of net tangible and intangible assets acquired, with any excess purchase price recorded as goodwill.
InWe did not have any divestitures in the first ninethree months of 2019. In 2018, we completed the sale of a commercial health products business during the first quarter and the sale of a public-facing contact-center business during the fourth quarter in our Information Technology segment andsegment. As the proceeds from the sale of certain CSRA operations wethe commercial health products business were required by a government customer to dispose of to address an organizational conflict of interest with respect to services provided tonot material for the customer. The proceeds from the salesthree-month period ended April 1, 2018, they are included in other investing activities, net, in the unaudited Consolidated Statement of Cash Flows.
Goodwill
The changes in the carrying amount of goodwill by reporting unit were as follows:
 Aerospace Combat Systems Information Systems and Technology Information Technology Mission Systems Marine Systems 
Total
Goodwill
December 31, 2017 (a)$2,638
 $2,677
 $6,302
 $
 $
 $297
 $11,914
Acquisitions/
divestitures (b)

 
 16
 
 
 
 16
Other (c)40
 (14) (1) 
 
 
 25
April 1, 2018 (a)2,678
 2,663
 6,317
 
 
 297
 11,955
Change in reporting
    unit composition (d)

 
 (6,317) 2,076
 4,241
 
 
Acquisitions/
    divestitures (b)
148
 
 
 7,796
 1
 
 7,945
Other (c)(37) (21) 
 (347) (9) 
 (414)
September 30, 2018 (e)$2,789
 $2,642
 $
 $9,525
 $4,233
 $297
 $19,486
 Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Goodwill
December 31, 2018 (a)$2,813
 $2,633
 $9,622
 $4,229
 $297
 $19,594
Acquisitions (b)3
 (1) 72
 6
 
 80
Other (c)(20) 9
 1
 4
 
 (6)
March 31, 2019 (a)$2,796
 $2,641
 $9,695
 $4,239
 $297

$19,668
(a)Goodwill in the Information Systems and Technology reporting unit is net of $1.9 billion of accumulated impairment losses.
(b)Includes adjustments during the purchase price allocation period. Activity in the first quarter of 2018 also includes an allocation of goodwill associated with the sale of the commercial health products business discussed above.
(c)Consists primarily of adjustments for foreign currency translation. Activity in the six-month period ended September 30, 2018, also includes an allocation of goodwill in our Information Technology reporting unit associated with the operations classified as held for sale on the unaudited Consolidated Balance Sheet on September 30, 2018.
(d)Concurrent with the acquisition of CSRA, we reorganized our Information Systems and Technology operating segment into the Information Technology and Mission Systems segments. See Note A for further discussion of the segment reorganization. This reorganization similarly changed the composition of our reporting units. Accordingly, goodwill of the Information Systems and Technology reporting unit was reassigned to the Information Technology and Mission Systems reporting units using a relative fair value allocation approach as of the date of the reorganization.
(e)Goodwill in the Information Technology and Mission Systems reporting units is net of $526$536 and $1.3 billion of accumulated impairment losses, respectively.
(b)Includes adjustments during the purchase price allocation period.
(c)Consists primarily of adjustments for foreign currency translation.


Intangible Assets
Intangible assets consisted of the following:
Gross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount Gross Carrying Amount (a)Accumulated AmortizationNet Carrying AmountGross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount Gross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Contract and program
intangible assets (b)
$3,792
$(1,473)$2,319
 $1,684
$(1,320)$364
$3,771
$(1,589)$2,182
 $3,771
$(1,531)$2,240
Trade names and trademarks468
(173)295
 465
(160)305
463
(180)283
 469
(177)292
Technology and software167
(115)52
 137
(105)32
171
(120)51
 165
(116)49
Other intangible assets155
(154)1
 155
(154)1
159
(157)2
 159
(155)4
Total intangible assets$4,582
$(1,915)$2,667
 $2,441
$(1,739)$702
$4,564
$(2,046)$2,518
 $4,564
$(1,979)$2,585
(a)Change in gross carrying amounts consists primarily of adjustments for acquired intangible assets and foreign currency translation.
(b)Consists of acquired backlog and probable follow-on work and associated customer relationships.


Amortization expense for intangible assets was $86$70 and $190$20 for the three- and nine-monththree-month periods ended September 30, 2018,March 31, 2019, and $19 and $57 for the three- and nine-month periods ended OctoberApril 1, 2017.2018.

C. REVENUE
The majority of our revenue is derived from long-term contracts and programs that can span several years. We account for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers.
Performance Obligations. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in ASC Topic 606. A contract’s transaction price is allocated to each distinct performance obligation within that contract and recognized as revenue when, or as, the performance obligation is satisfied. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is not separately identifiable from other promises in the contracts and is, therefore, not distinct. Some of our contracts have multiple performance obligations, most commonly due to the contract covering multiple phases of the product lifecycle (development, production, maintenance and support). For contracts with multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract. The primary method used to estimate standalone selling price is the expected cost plus a margin approach, under which we forecast our expected costs of satisfying a performance obligation and then add an appropriate margin for that distinct good or service.
Contract modifications are routine in the performance of our contracts. Contracts are often modified to account for changes in contract specifications or requirements. In most instances, contract modifications are for goods or services that are not distinct and, therefore, are accounted for as part of the existing contract.
Our performance obligations are satisfied over time as work progresses or at a point in time. Revenue from products and services transferred to customers over time accounted for 74%75% and 75%73% of our revenue for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and 70% of our revenue for the three- and nine-month periods ended October 1, 2017, respectively. Substantially all of our revenue in the defense segments is recognized over time, because control is transferred continuously to our customers. Typically, revenue is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material, overhead and, when appropriate, G&A expenses.


Revenue from goods and services transferred to customers at a point in time accounted for 26%25% and 25%27% of our revenue for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and 30% of our revenue for the three- and nine-month periods ended October 1, 2017, respectively. The majority of our revenue recognized at a point in time is for the manufacture of business-jet aircraft in our Aerospace segment. Revenue on these contracts is recognized when the customer obtains control of the asset, which is generally upon delivery and acceptance by the customer of the fully outfitted aircraft.
On September 30, 2018,March 31, 2019, we had $69.5$69.2 billion of remaining performance obligations, which we also refer to as total backlog. We expect to recognize approximately 50%65% of our remaining performance obligations as revenue by year-end 2019,2020, an additional 30%25% by year-end 20212022 and the balance thereafter. On December 31, 2017,2018, we had $63.2$67.9 billion of remaining performance obligations, at which time we expected to recognize approximately 40%45% of these remaining performance obligations as revenue in 2018,2019, an additional 40%35% by year-end 20202021 and the balance thereafter.
Contract Estimates. Accounting for long-term contracts and programs involves the use of various techniques to estimate total contract revenue and costs. For long-term contracts, we estimate the profit on


a contract as the difference between the total estimated revenue and expected costs to complete a contract and recognize that profit over the life of the contract.
Contract estimates are based on various assumptions to project the outcome of future events that often span several years. These assumptions include labor productivity and availability; the complexity of the work to be performed; the cost and availability of materials; the performance of subcontractors; and the availability and timing of funding from the customer.
The nature of our contracts gives rise to several types of variable consideration, including claims and award and incentive fees. We include in our contract estimates additional revenue for submitted contract modifications or claims against the customer when we believe we have an enforceable right to the modification or claim, the amount can be estimated reliably and its realization is probable. In evaluating these criteria, we consider the contractual/legal basis for the claim, the cause of any additional costs incurred, the reasonableness of those costs and the objective evidence available to support the claim. We include award or incentive fees in the estimated transaction price when there is a basis to reasonably estimate the amount of the fee. These estimates are based on historical award experience, anticipated performance and our best judgment at the time. Because of our certainty in estimating these amounts, they are included in the transaction price of our contracts and the associated remaining performance obligations.
As a significant change in one or more of these estimates could affect the profitability of our contracts, we review and update our contract-related estimates regularly. We recognize adjustments in estimated profit on contracts under the cumulative catch-up method. Under this method, the impact of the adjustment on profit recorded to date on a contract is recognized in the period the adjustment is identified. Revenue and profit in future periods of contract performance are recognized using the adjusted estimate. If at any time the estimate of contract profitability indicates an anticipated loss on the contract, we recognize the total loss in the period it is identified.
The impact of adjustments in contract estimates on our operating earnings can be reflected in either operating costs and expenses or revenue. The aggregate impact of adjustments in contract estimates increased our revenue, operating earnings and diluted earnings per share as follows:
Three Months EndedNine Months Ended
September 30, 2018 
October 1,
2017
September 30, 2018 
October 1,
2017
Three Months EndedMarch 31, 2019 April 1, 2018
Revenue$96
 $94
$302
 $256
$96
 $115
Operating earnings103
 103
283
 274
68
 97
Diluted earnings per share$0.27
 $0.22
$0.75
 $0.58
$0.18
 $0.25


No adjustment on any one contract was material to the unaudited Consolidated Financial Statements for the three- and nine-monththree-month periods ended September 30, 2018,March 31, 2019, or OctoberApril 1, 2017.2018.
Revenue by Category. Our portfolio of products and services consists of over 10,000approximately 11,000 active contracts. The following series of tables presents our revenue disaggregated by several categories.


Revenue by major products and services was as follows:
Three Months EndedNine Months Ended
September 30, 2018 
October 1,
2017
September 30, 2018 
October 1,
2017
Three Months EndedMarch 31, 2019 April 1, 2018
Aircraft manufacturing and
completions
$1,437
 $1,562
$4,165
 $4,791
$1,691
 $1,366
Aircraft services525
 422
1,507
 1,302
507
 451
Pre-owned aircraft69
 11
79
 54
42
 8
Total Aerospace2,031
 1,995
5,751
 6,147
2,240

1,825
Wheeled combat and tactical vehicles657
 623
1,926
 1,749
Military vehicles1,134
 956
Weapons systems, armament and
munitions
425
 412
1,251
 1,167
401
 383
Tanks and tracked vehicles334
 315
1,011
 840
Engineering and other services107
 150
309
 445
101
 101
Total Combat Systems1,523
 1,500
4,497
 4,201
1,636

1,440
Information technology services2,307
 1,068
5,887
 3,178
2,169
 1,138
Total Information Technology2,307
 1,068
5,887
 3,178
2,169

1,138
Platform systems and sensors423
 387
1,197
 1,170
Intelligence, surveillance and
reconnaissance systems
398
 351
1,147
 1,013
Communication systems409
 348
1,131
 1,043
C4ISR* solutions1,158
 1,098
Total Mission Systems1,230
 1,086
3,475
 3,226
1,158

1,098
Nuclear-powered submarines1,369
 1,248
4,103
 3,794
1,377
 1,296
Surface combatants293
 256
834
 757
Auxiliary and commercial ships152
 129
567
 427
Surface ships446
 483
Repair and other services189
 298
701
 966
235
 255
Total Marine Systems2,003
 1,931
6,205
 5,944
2,058

2,034
Total revenue$9,094
 $7,580
$25,815
 $22,696
$9,261

$7,535
* Command, control, communications, computers, intelligence, surveillance and reconnaissance.
Revenue by contract type was as follows:
Three Months Ended September 30, 2018Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Revenue
Fixed-price$1,807
 $1,309
 $941
 $695
 $1,284
 $6,036
Cost-reimbursement
 204
 955
 499
 718
 2,376
Time-and-materials224
 10
 411
 36
 1
 682
Total revenue$2,031
 $1,523
 $2,307
 $1,230
 $2,003
 $9,094
Three Months Ended October 1, 2017           
Fixed-price$1,835
 $1,258
 $359
 $612
 $1,131
 $5,195
Cost-reimbursement
 233
 552
 437
 797
 2,019
Time-and-materials160
 9
 157
 37
 3
 366
Total revenue$1,995
 $1,500
 $1,068
 $1,086
 $1,931
 $7,580


Nine Months Ended September 30, 2018Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Revenue
Three Months Ended March 31, 2019Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Revenue
Fixed-price$5,171
 $3,892
 $2,387
 $1,973
 $3,961
 $17,384
$2,040
 $1,416
 $921
 $651
 $1,416
 $6,444
Cost-reimbursement
 580
 2,462
 1,390
 2,241
 6,673

 211
 841
 463
 640
 2,155
Time-and-materials580
 25
 1,038
 112
 3
 1,758
200
 9
 407
 44
 2
 662
Total revenue$5,751
 $4,497
 $5,887
 $3,475
 $6,205
 $25,815
2,240

1,636

2,169

1,158

2,058

9,261
Nine Months Ended October 1, 2017           
Three Months Ended April 1, 2018           
Fixed-price$5,650
 $3,538
 $1,049
 $1,744
 $3,514
 $15,495
$1,668
 $1,253
 $387
 $620
 $1,305
 $5,233
Cost-reimbursement
 636
 1,660
 1,357
 2,422
 6,075

 179
 577
 440
 728
 1,924
Time-and-materials497
 27
 469
 125
 8
 1,126
157
 8
 174
 38
 1
 378
Total revenue$6,147
 $4,201
 $3,178
 $3,226
 $5,944
 $22,696
1,825

1,440

1,138

1,098

2,034

7,535
Our segments operate under fixed-price, cost-reimbursement and time-and-materials contracts. Our production contracts are primarily fixed-price. Under these contracts, we agree to perform a specific scope of work for a fixed amount. Contracts for research, engineering, repair and maintenance, and other services are typically cost-reimbursement or time-and-materials. Under cost-reimbursement contracts, the customer reimburses contract costs incurred and pays a fixed, incentive or award-based fee. These fees are determined


by our ability to achieve targets set in the contract, such as cost, quality, schedule and performance. Under time-and-materials contracts, the customer pays a fixed hourly rate for direct labor and generally reimburses us for the cost of materials.
Each of these contract types presents advantages and disadvantages. Typically, we assume more risk with fixed-price contracts. However, these types of contracts offer additional profits when we complete the work for less than originally estimated. Cost-reimbursement contracts generally subject us to lower risk. Accordingly, the associated base fees are usually lower than fees earned on fixed-price contracts. Under time-and-materials contracts, our profit may vary if actual labor-hour rates vary significantly from the negotiated rates. Also, because these contracts can provide little or no fee for managing material costs, the content mix can impact profitability.


Revenue by customer was as follows:
Three Months Ended September 30, 2018Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Revenue
U.S. government:           
Department of Defense (DoD)$35
 $698
 $889
 $854
 $1,895
 $4,371
Non-DoD
 2
 1,348
 130
 
 1,480
Foreign Military Sales (FMS)13
 65
 8
 10
 37
 133
Total U.S. government48
 765
 2,245
 994
 1,932
 5,984
U.S. commercial827
 59
 41
 38
 69
 1,034
Non-U.S. government59
 677
 21
 156
 2
 915
Non-U.S. commercial1,097
 22
 
 42
 
 1,161
Total revenue$2,031
 $1,523
 $2,307
 $1,230
 $2,003
 $9,094
Three Months Ended October 1, 2017           
U.S. government:           
DoD$40
 $659
 $424
 $745
 $1,878
 $3,746
Non-DoD
 2
 582
 135
 1
 720
FMS8
 93
 5
 12
 42
 160
Total U.S. government48
 754
 1,011
 892
 1,921
 4,626
U.S. commercial958
 63
 50
 25
 6
 1,102
Non-U.S. government63
 668
 7
 134
 2
 874
Non-U.S. commercial926
 15
 
 35
 2
 978
Total revenue$1,995
 $1,500
 $1,068
 $1,086
 $1,931
 $7,580


Nine Months Ended September 30, 2018Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Revenue
Three Months Ended March 31, 2019Aerospace Combat Systems Information Technology Mission Systems Marine Systems 
Total
Revenue
U.S. government:           
Department of Defense (DoD)$123
 $793
 $950
 $784
 $1,975
 $4,625
Non-DoD
 3
 1,166
 135
 
 1,304
Foreign Military Sales (FMS)15
 79
 5
 9
 44
 152
Total U.S. government138

875

2,121

928

2,019

6,081
U.S. commercial1,329
 50
 40
 35
 36
 1,490
Non-U.S. government59
 701
 8
 166
 2
 936
Non-U.S. commercial714
 10
 
 29
 1
 754
Total revenue2,240

1,636

2,169

1,158

2,058

9,261
Three Months Ended April 1, 2018           
U.S. government:                      
DoD$165
 $1,965
 $2,374
 $2,360
 $5,877
 $12,741
$41
 $607
 $433
 $742
 $1,950
 $3,773
Non-DoD
 6
 3,296
 378
 1
 3,681

 1
 637
 118
 
 756
FMS48
 217
 23
 31
 105
 424
16
 69
 8
 7
 29
 129
Total U.S. government213
 2,188
 5,693
 2,769
 5,983
 16,846
57

677

1,078

867

1,979

4,658
U.S. commercial2,586
 175
 122
 101
 213
 3,197
842
 58
 40
 27
 53
 1,020
Non-U.S. government212
 2,086
 72
 489
 8
 2,867
10
 697
 20
 172
 2
 901
Non-U.S. commercial2,740
 48
 
 116
 1
 2,905
916
 8
 
 32
 
 956
Total revenue$5,751
 $4,497
 $5,887
 $3,475
 $6,205
 $25,815
$1,825
 $1,440
 $1,138
 $1,098
 $2,034
 $7,535
Nine Months Ended October 1, 2017           
U.S. government:           
DoD$112
 $1,928
 $1,269
 $2,144
 $5,731
 $11,184
Non-DoD
 5
 1,700
 413
 1
 2,119
FMS26
 284
 16
 34
 140
 500
Total U.S. government138
 2,217
 2,985
 2,591
 5,872
 13,803
U.S. commercial2,771
 166
 176
 79
 56
 3,248
Non-U.S. government132
 1,764
 17
 463
 10
 2,386
Non-U.S. commercial3,106
 54
 
 93
 6
 3,259
Total revenue$6,147
 $4,201
 $3,178
 $3,226
 $5,944
 $22,696
Contract Balances. The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Consolidated Balance Sheet. In our defense segments, amounts are billed as work progresses in accordance with agreed-upon contractual terms, either at periodic intervals (e.g., biweekly or monthly) or upon achievement of contractual milestones. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. However, we sometimes receive advances or deposits from our customers, particularly on our international contracts, before revenue is recognized, resulting in contract liabilities. These assets and liabilities are reported on the Consolidated Balance Sheet on a contract-by-contract basis at the end of each reporting period. In our Aerospace segment, we generally receive deposits from customers upon contract execution and upon achievement of contractual milestones. These deposits are liquidated when revenue is recognized. Changes in the contract asset and liability balances during the nine-month


three-month period ended September 30, 2018,March 31, 2019, were not materially impacted by any other factors except for the acquisition of CSRAdelays in payment on an international wheeled armored vehicle contract in our Combat Systems segment as further describeddiscussed in Note B.G.
Revenue recognized for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and October 1, 2017, that was included in the contract liability balance at the beginning of each year was $875 and $3.5$1.7 billion and $982 and $3.9$1.5 billion, respectively. This revenue represented primarily the sale of business-jet aircraft.



D. EARNINGS PER SHARE
We compute basic earnings per share (EPS) using net earnings for the period and the weighted average number of common shares outstanding during the period. Basic weighted average shares outstanding have decreased in 20182019 and 20172018 due to share repurchases. See Note K for further discussion of our share repurchases. Diluted EPS incorporates the additional shares issuable upon the assumed exercise of stock options and the release of restricted stock and restricted stock units (RSUs).
Basic and diluted weighted average shares outstanding were as follows (in thousands):
 Three Months EndedNine Months Ended
 September 30, 2018 
October 1,
2017
September 30, 2018 
October 1,
2017
Basic weighted average shares
    outstanding
295,339
 298,145
295,964
 299,902
Dilutive effect of stock options and
    restricted stock/RSUs*
3,748
 5,606
4,114
 5,599
Diluted weighted average shares
    outstanding
299,087
 303,751
300,078
 305,501
Three Months EndedMarch 31, 2019 April 1, 2018
Basic weighted average shares outstanding287,917
 296,399
Dilutive effect of stock options and restricted stock/RSUs*2,974
 4,705
Diluted weighted average shares outstanding290,891
 301,104
* Excludes outstanding options to purchase shares of common stock that had exercise prices in excess of the average market price of our common stock during the period and, therefore, the effect of including these options would be antidilutive. These options totaled 3,4473,975 and 3,043517 for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and 1,850 and 1,449 for the three- and nine-month periods ended October 1, 2017, respectively.

E. FAIR VALUE
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between marketplace participants. Various valuation approaches can be used to determine fair value, each requiring different valuation inputs. The following hierarchy classifies the inputs used to determine fair value into three levels:
Level 1 - quoted prices in active markets for identical assets or liabilities;
Level 2 - inputs, other than quoted prices, observable by a marketplace participant either directly or indirectly; and
Level 3 - unobservable inputs significant to the fair value measurement.
We did not have any significant non-financial assets or liabilities measured at fair value on September 30, 2018,March 31, 2019, or December 31, 2017.2018.
Our financial instruments include cash and equivalents, accounts receivable and payable, marketable securities held in trust and other investments, short- and long-term debt, and derivative financial instruments. The carrying values of cash and equivalents and accounts receivable and payable on the unaudited Consolidated Balance Sheet approximate their fair value. The following tables present the fair values of our other financial assets and liabilities on September 30, 2018,March 31, 2019, and December 31, 2017,2018, and the basis for determining their fair values:


Carrying
Value
 
Fair
Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Carrying
Value
 
Fair
Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Financial Assets (Liabilities)September 30, 2018March 31, 2019
Measured at fair value:                  
Marketable securities held in trust:                  
Cash and equivalents$7
 $7
 $2
 $5
 $
$6
 $6
 $
 $6
 $
Available-for-sale debt securities123
 123
 
 123
 
143
 143
 
 143
 
Equity securities55
 55
 55
 
 
50
 50
 50
 
 
Other investments4
 4
 
 
 4
4
 4
 
 
 4
Cash flow hedges(63) (63) 
 (63) 
(61) (61) 
 (61) 
Measured at amortized cost:                  
Short- and long-term debt principal(13,191) (12,956) 
 (12,956) 
(13,646) (13,704) 
 (13,704) 
December 31, 2017December 31, 2018
Measured at fair value:                  
Marketable securities held in trust:                  
Cash and equivalents$20
 $20
 $15
 $5
 $
$29
 $29
 $23
 $6
 $
Available-for-sale debt securities117
 117
 
 117
 
121
 121
 
 121
 
Equity securities54
 54
 54
 
 
52
 52
 52
 
 
Other investments4
 4
 
 
 4
4
 4
 
 
 4
Cash flow hedges(105) (105) 
 (105) 
(69) (69) 
 (69) 
Measured at amortized cost:                  
Short- and long-term debt principal(4,032) (3,974) 
 (3,974) 
(12,518) (12,346) 
 (12,346) 
Our Level 1 assets include investments in publicly traded equity securities valued using quoted prices from the market exchanges. The fair value of our Level 2 assets and liabilities is determined under a market approach using valuation models that incorporate observable inputs such as interest rates, bond yields and quoted prices for similar assets. Our Level 3 assets include direct private equity investments that are measured using inputs unobservable to a marketplace participant.

F. INCOME TAXES
Income Tax Provision. We calculate our provision for federal, state and international income taxes based on current tax law. U.S. federal tax reform was enacted on December 22, 2017, and has several key provisions impacting accounting for and reporting of income taxes. The most significant provision reduced the U.S. corporate statutory tax rate from 35% to 21% beginning on January 1, 2018. We recorded the effect of the change in tax law in the fourth quarter of 2017.
Net Deferred Tax Liability. Our deferred tax assets and liabilities are included in other noncurrent assets and liabilities on the Consolidated Balance Sheet. Our net deferred tax liability consisted of the following:


September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Deferred tax asset$19
 $75
$39
 $38
Deferred tax liability(544) (244)(544) (577)
Net deferred tax liability$(525) $(169)$(505) $(539)
Tax Uncertainties. For all periods open to examination by tax authorities, we periodically assess our liabilities and contingencies based on the latest available information. Where we believe there is more than a 50% chance that our tax position will not be sustained, we record our best estimate of the resulting tax liability, including interest, in the Consolidated Financial Statements. We include any interest or penalties


incurred in connection with income taxes as part of income tax expense. The total amount of these tax liabilities on September 30, 2018,March 31, 2019, was not material to our results of operations, financial condition or cash flows.
We participate in the Internal Revenue Service (IRS) Compliance Assurance Process (CAP), a real-time audit of our consolidated federal corporate income tax return. The IRS has examined our consolidated federal income tax returns through 2017. We do not expect the resolution of tax matters for open years to have a material impact on our results of operations, financial condition, cash flows or effective tax rate.
Based on all known facts and circumstances and current tax law, we believe the total amount of any unrecognized tax benefits on September 30, 2018,March 31, 2019, was not material to our results of operations, financial condition or cash flows, and if recognized, would not have a material impact on our effective tax rate. In addition, there are no tax positions for which it is reasonably possible that the unrecognized tax benefits will vary significantly over the next 12 months, producing, individually or in the aggregate, a material effect on our results of operations, financial condition or cash flows.

G. UNBILLED RECEIVABLES
Unbilled receivables represent revenue recognized on long-term contracts (contract costs and estimated profits) less associated advances and progress billings. These amounts will be billed in accordance with the agreed-upon contractual terms or upon achievement of contractual milestones.terms. Unbilled receivables consisted of the following:
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Unbilled revenue$27,536
 $21,845
$30,497
 $27,908
Advances and progress billings(19,972) (16,605)(23,130) (21,332)
Net unbilled receivables$7,564
 $5,240
$7,367

$6,576
Excluding the acquisition of CSRA, theThe increase in net unbilled receivables during the nine-monththree-month period ended September 30, 2018,March 31, 2019, was due primarily on the largeto an international wheeled armored vehicle contractscontract in our Combat Systems segment. At March 31, 2019 the net unbilled receivable related to this contract was $2.2 billion. Our contract is with the Canadian government, who is selling the vehicles to an international customer. We have experienced delays in payment under the contract. We continue to meet our obligations under the contract and are entitled to payment for work performed. Therefore, we expect to collect the full amount currently outstanding.









H. INVENTORIES
The majority of our inventories are for business-jet aircraft. Our inventories are stated at the lower of cost or net realizable value. Work in process represents largely labor, material and overhead costs associated with aircraft in the manufacturing process and is based primarily on the estimated average unit cost in a production lot. Raw materials are valued primarily on the first-in, first-out method. We record pre-owned aircraft acquired in connection with the sale of new aircraft at the lower of the trade-in value or the estimated net realizable value.


Inventories consisted of the following:
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Work in process$4,688
 $3,872
$4,510
 $4,357
Raw materials1,425
 1,357
1,535
 1,504
Finished goods45
 51
45
 33
Pre-owned aircraft89
 23
95
 83
Total inventories$6,247
 $5,303
$6,185
 $5,977
The increase in total inventories during the nine-monththree-month period ended September 30, 2018,March 31, 2019, was due primarily to the ramp-up in production of the new G500 and G600 aircraft programs in our Aerospace segment. We received type certification from the U.S. Federal Aviation Administration (FAA)segment, for the G500 aircraft in July 2018 and delivered the first G500 aircraft in the third quarter of 2018. Additionally,which we continue to progress toward anticipatedare anticipating FAA type certification later this year and entry into service in 2019 of the new G600 aircraft.2019.

I. DEBT
Debt consisted of the following:
  September 30, 2018 December 31, 2017
Fixed-rate notes due:Interest rate:   
May 20202.875%$2,000
 $
May 20213.000%2,000
 
July 20213.875%500
 500
November 20222.250%1,000
 1,000
May 20233.375%750
 
August 20231.875%500
 500
November 20242.375%500
 500
May 20253.500%750
 
August 20262.125%500
 500
November 20272.625%500
 500
May 20283.750%1,000
 
November 20423.600%500
 500
Floating-rate notes due:    
May 20203-month LIBOR + 0.29%500
 
May 20213-month LIBOR + 0.38%500
 
Commercial paper2.114%1,672
 
OtherVarious19
 32
Total debt principal 13,191
 4,032
Less unamortized debt issuance costs
    and discounts
 110
 50
Total debt 13,081
 3,982
Less current portion 1,678
 2
Long-term debt $11,403
 $3,980
In April 2018, we borrowed $7.5 billion under a short-term credit facility to finance, in part, the acquisition of CSRA. In May 2018, we issued $7.5 billion of fixed- and floating-rate notes to repay the borrowings under this facility. We entered into interest rate swap contracts that exchange the floating interest rates on the $500 notes due in May 2020 and May 2021 for fixed rates. The result of the interest rate swap contracts is effective interest rates on the floating-rate notes that are the same as the rates on the fixed-rate notes due in May 2020 and May 2021. See Note L for further discussion of our derivative financial instruments.
  March 31, 2019 December 31, 2018
Fixed-rate notes due:Interest rate:   
May 20202.875%$2,000
 $2,000
May 20213.000%2,000
 2,000
July 20213.875%500
 500
November 20222.250%1,000
 1,000
May 20233.375%750
 750
August 20231.875%500
 500
November 20242.375%500
 500
May 20253.500%750
 750
August 20262.125%500
 500
November 20272.625%500
 500
May 20283.750%1,000
 1,000
November 20423.600%500
 500
Floating-rate notes due:    
May 20203-month LIBOR + 0.29%500
 500
May 20213-month LIBOR + 0.38%500
 500
Commercial paper2.516%1,865
 850
OtherVarious281
 168
Total debt principal 13,646
 12,518
Less unamortized debt issuance costs
    and discounts
 98
 101
Total debt 13,548
 12,417
Less current portion 2,097
 973
Long-term debt $11,451
 $11,444
Our fixed- and floating-rate notes are fully and unconditionally guaranteed by several of our 100%-owned subsidiaries. See Note PQ for condensed consolidating financial statements. We have the option to


redeem the fixed-rate notes prior to their maturity in whole or in part for the principal plus any accrued but unpaid interest and applicable make-whole amounts.
The aggregate amounts of scheduled principal maturities of our debt in the remainder of 2018 and in subsequent years are as follows:
2018$1,678
20192
20202,502
20213,002
20221,002
Thereafter5,005
Total debt principal$13,191
On September 30, 2018,March 31, 2019, we had $1.7$1.9 billion of commercial paper outstanding with a dollar-weighted average interest rate of 2.114%2.516%. We have $5 billion in committed bank credit facilities for general corporate purposes and working capital needs and to support our commercial paper issuances. These credit facilities include a $2 billion 364-day facility expiring in March 2019,2020, a $1 billion multi-year facility expiring in November 2020 and a $2 billion multi-year facility expiring in March 2023. We may renew or replace these credit facilities in whole or in part at or prior to their expiration dates. Our credit facilities are guaranteed by several of our 100%-owned subsidiaries. We also have an effective shelf registration on file with the Securities and Exchange Commission that allows us to access the debt markets.
Our financing arrangements contain a number of customary covenants and restrictions. We were in compliance with all covenants and restrictions on September 30, 2018.March 31, 2019.



J. OTHER LIABILITIES
A summary of significant other liabilities by balance sheet caption follows:
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
      
Salaries and wages$943
 $786
$811
 $952
Retirement benefits267
 272
Operating lease liabilities255
 
Workers’ compensation321
 320
248
 244
Retirement benefits298
 295
Fair value of cash flow hedges130
 180
102
 141
Other (a)1,959
 1,317
1,899
 1,708
Total other current liabilities$3,651
 $2,898
$3,582
 $3,317
      
Retirement benefits$4,160
 $4,408
$4,334
 $4,422
Operating lease liabilities1,129
 
Customer deposits on commercial contracts
750
 814
678
 726
Deferred income taxes544
 244
544
 577
Other (b)1,662
 1,066
1,714
 1,768
Total other liabilities$7,116
 $6,532
$8,399
 $7,493
(a)Consists primarily of dividends payable, taxes payable, capital lease obligations, environmental remediation reserves, warranty reserves, deferred revenue and supplier contributions in the Aerospace segment, liabilities of discontinued operations, finance lease liabilities and insurance-related costs.
(b)Consists primarily of capital lease obligations, warranty reserves, workers’ compensation liabilities, finance lease liabilities and liabilities of discontinued operations.

K. SHAREHOLDERS EQUITY
Share Repurchases. Our board of directors from time to time authorizes management’s repurchase of outstanding shares of our common stock on the open market. On March 1, 2017,December 5, 2018, the board of directors authorized management to repurchase up to 10 million additional shares of the company’s outstanding stock. In the nine-monththree-month period ended September 30, 2018,March 31, 2019, we repurchased 2.50.5 million of our outstanding shares for $522.$86. On September 30, 2018, 5.1March 31, 2019, 7 million shares remained authorized by our board of directors for repurchase, approximately 2% of our total shares outstanding. We repurchased 5.91.2 million shares for $1.1 billion$257 in the ninethree-month period ended OctoberApril 1, 2017.2018.


Dividends per Share. Our board of directors declared dividends of $0.93$1.02 and $2.79$0.93 per share for the three- and nine-monththree-month periods ended September 30,March 31, 2019 and April 1, 2018, and $0.84 and $2.52 per share for the three- and nine-month periods ended October 1, 2017, respectively. We paid cash dividends of $275$268 and $801$250 for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and $252 and $735 for the three- and nine-month periods ended October 1, 2017, respectively.


Accumulated Other Comprehensive Loss. The changes, pretax and net of tax, in each component of accumulated other comprehensive loss (AOCL) consisted of the following:
Losses on Cash Flow HedgesUnrealized Gains on Marketable SecuritiesForeign Currency Translation AdjustmentsChanges in Retirement Plans’ Funded StatusAOCLLosses on Cash Flow HedgesUnrealized Gains on Marketable SecuritiesForeign Currency Translation AdjustmentsChanges in Retirement Plans’ Funded StatusAOCL
December 31, 2017$(94)$19
$402
$(3,147)$(2,820)
Cumulative effect adjustments (see Note A)(4)(19)
(615)(638)
December 31, 2018$(71)$
$102
$(3,809)$(3,778)
Other comprehensive income, pretax40

(130)247
157
17

31
63
111
Provision for income tax, net(8)

(52)(60)(2)

(14)(16)
Other comprehensive income, net of tax32

(130)195
97
15

31
49
95
September 30, 2018$(66)$
$272
$(3,567)$(3,361)
March 31, 2019$(56)$
$133
$(3,760)$(3,683)
December 31, 2016$(345)$14
$69
$(3,125)$(3,387)
December 31, 2017$(94)$19
$402
$(3,147)$(2,820)
Cumulative effect adjustments*(4)(19)
(615)(638)
Other comprehensive income, pretax286
8
409
193
896
(3)
1
84
82
Provision for income tax, net(73)(2)(15)(70)(160)1


(16)(15)
Other comprehensive income, net of tax213
6
394
123
736
(2)
1
68
67
October 1, 2017$(132)$20
$463
$(3,002)$(2,651)
April 1, 2018$(100)$
$403
$(3,694)$(3,391)
* Reflects the cumulative effect of ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, and ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which we adopted on January 1, 2018.
Current-period amounts reclassified out of AOCL related primarily to changes in our retirement plans’ funded status and consisted of pretax recognized net actuarial losses of $280$68 and $255$95 for the nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and October 1, 2017, respectively. This was offset partially by pretax amortization of prior service credit of $36$5 and $53$12 for the nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and October 1, 2017, respectively. These AOCL components are included in our net periodic pension and other post-retirement benefit cost. See Note NO for additional details.



L. DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES
We are exposed to market risk, primarily from foreign currency exchange rates, interest rates, commodity prices and investments. We may use derivative financial instruments to hedge some of these risks as described below. We do not use derivative financial instruments for trading or speculative purposes.
Foreign Currency Risk. Our foreign currency exchange rate risk relates to receipts from customers, payments to suppliers and inter-company transactions denominated in foreign currencies. To the extent possible, we include terms in our contracts that are designed to protect us from this risk. Otherwise, we enter into derivative financial instruments, principally foreign currency forward purchase and sale contracts, designed to offset and minimize our risk. The dollar-weighted two-year average maturity of these instruments generally matches the duration of the activities that are at risk.
Interest Rate Risk. Our financial instruments subject to interest rate risk include variable-rate commercial paper and fixed-ratefixed- and floating-rate long-term debt obligations. However, the risk associated with these instruments is not material. Our floating-rate long-term debt obligations are also subject to interest rate risk. However, as described in Note I, weWe entered into derivative financial instruments, specifically interest rate swap contracts, to eliminate our floating-rate interest risk. The interest rate risk associated with our financial instruments is not material.


Commodity Price Risk. We are subject to rising labor and commodity price risk, primarily on long-term, fixed-price contracts. To the extent possible, we include terms in our contracts that are designed to protect us from these risks. Some of the protective terms included in our contracts are considered derivative financial instruments but are not accounted for separately, because they are clearly and closely related to the host contract. We have not entered into any material commodity hedging contracts but may do so as circumstances warrant. We do not believe that changes in labor or commodity prices will have a material impact on our results of operations or cash flows.
Investment Risk. Our investment policy allows for purchases of fixed-income securities with an investment-grade rating and a maximum maturity of up to five years. On September 30, 2018,March 31, 2019, we held $1 billion$673 in cash and equivalents, but held no marketable securities other than those held in trust to meet some of our obligations under workers’ compensation and non-qualified supplemental executive retirement plans. On September 30, 2018,March 31, 2019, and December 31, 2017,2018, these marketable securities totaled $185$199 and $191,$202, respectively, and were reflected at fair value on the unaudited Consolidated Balance Sheet in other current and noncurrent assets. See Note E for additional details.
Hedging Activities. We had $5.8 billion in notional forward exchange and interest rate swap contracts outstanding on September 30, 2018,of $4.6 billion and $4.3$5.8 billion on March 31, 2019, and December 31, 2017.2018, respectively. These derivative financial instruments are cash flow hedges, and are reportedreflected at fair value on the Consolidated Balance Sheet at fair value.in other current assets and liabilities. See Note E for additional details.
Changes in fair value (gains and losses) related to derivative financial instruments that qualify as cash flow hedges are deferred in other comprehensive loss (OCL)AOCL until the underlying transaction is reflected in earnings. GainsAlternatively, gains and losses on derivative financial instruments that do not qualify for hedge accounting are recorded each period in earnings. All gains and losses from derivative financial instruments recognized in the Consolidated Statement of Earnings are presented in the same line item as the underlying transaction, either operating costs and expenses or interest expense. The
Net gains and losses recognized in earnings on derivative financial instruments that do not qualify for hedge accounting generally offset losses and gains on the assets and liabilities being hedged. Gains and losses resulting from hedge ineffectiveness are recognized in the Consolidated Statement of Earnings for all derivative financial instruments, regardless of designation.
Net gains and losses on derivative financial instruments recognized in earnings, including gains and losses related to hedge ineffectiveness, were not material to our results of operations for the three- and nine-monththree-month periods ended September 30, 2018,March 31, 2019, and OctoberApril 1, 2017.2018. Net gains and losses reclassified to earnings from OCLAOCL related to qualified hedges also were not material to our results of operations for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and


April 1, 2018, and October 1, 2017, and we do not expect the amount of these gains and losses that will be reclassified to earnings during the next 12 months to be material.
We had no material derivative financial instruments designated as fair value or net investment hedges on September 30, 2018,March 31, 2019, or December 31, 2017.2018.
Foreign Currency Financial Statement Translation. We translate foreign currency balance sheets from our international businesses’ functional currency (generally the respective local currency) to U.S. dollars at the end-of-period exchange rates, and statements of earnings at the average exchange rates for each period. The resulting foreign currency translation adjustments are a component of OCL.AOCL.
We do not hedge the fluctuation in reported revenue and earnings resulting from the translation of these international operations’ results into U.S. dollars. The impact of translating our non-U.S. operations’ revenue into U.S. dollars was not material to our results of operations for the three- and nine-monththree-month periods ended September 30, 2018,March 31, 2019, or OctoberApril 1, 2017.2018. In addition, the effect of changes in foreign exchange rates on non-U.S. cash balances was not material for the nine-monththree-month periods ended September 30, 2018,March 31, 2019, and OctoberApril 1, 2017.


2018.

M. COMMITMENTS AND CONTINGENCIES
Litigation
In 2015, Electric Boat Corporation, a subsidiary of General Dynamics Corporation, received a Civil Investigative Demand from the U.S. Department of Justice regarding an investigation of potential False Claims Act violations relating to alleged failures of Electric Boat’s quality system with respect to allegedly non-conforming parts purchased from a supplier. In 2016, Electric Boat was made aware that it is a defendant in a lawsuit related to this matter filed under seal in U.S. district court. Also in 2016, the Suspending and Debarring Official for the U.S. Department of the Navy issued a Show Cause Letter to Electric Boat requesting that Electric Boat respond to the official’s concerns regarding Electric Boat’s oversight and management with respect to its quality assurance systems for subcontractors and suppliers. Electric Boat responded to the Show Cause Letter and has been engaged in discussions with the U.S. government. Given the current status of these matters, we are unable to express a view regarding the ultimate outcome or, if the outcome is adverse, to estimate an amount or range of reasonably possible loss. Depending on the outcome of these matters, there could be a material impact on our results of operations, financial condition and cash flows.
Additionally, various other claims and legal proceedings incidental to the normal course of business are pending or threatened against us. These other matters relate to such issues as government investigations and claims, the protection of the environment, asbestos-related claims and employee-related matters. The nature of litigation is such that we cannot predict the outcome of these other matters. However, based on information currently available, we believe any potential liabilities in these other proceedings, individually or in the aggregate, will not have a material impact on our results of operations, financial condition or cash flows.
Environmental
We are subject to and affected by a variety of federal, state, local and foreign environmental laws and regulations. We are directly or indirectly involved in environmental investigations or remediation at some of our current and former facilities and third-party sites that we do not own but where we have been designated a Potentially Responsible Party (PRP) by the U.S. Environmental Protection Agency or a state environmental agency. Based on historical experience, we expect that a significant percentage of the total remediation and compliance costs associated with these facilities will continue to be allowable contract costs and, therefore, recoverable under U.S. government contracts.
As required, we provide financial assurance for certain sites undergoing or subject to investigation or remediation. We accrue environmental costs when it is probable that a liability has been incurred and the amount can be reasonably estimated. Where applicable, we seek insurance recovery for costs related to environmental liabilities. We do not record insurance recoveries before collection is considered probable. Based on all known facts and analyses, we do not believe that our liability at any individual site, or in the aggregate, arising from such environmental conditions will be material to our results of operations, financial condition or cash flows. We also do not believe that the range of reasonably possible additional loss beyond what has been recorded would be material to our results of operations, financial condition or cash flows.
Other
Government Contracts. As a government contractor, we are subject to U.S. government audits and investigations relating to our operations, including claims for fines, penalties, and compensatory and treble damages. We believe the outcome of such ongoing government audits and investigations will not have a material impact on our results of operations, financial condition or cash flows.


In the performance of our contracts, we routinely request contract modifications that require additional funding from the customer. Most often, these requests are due to customer-directed changes in the scope of work. While we are entitled to recovery of these costs under our contracts, the administrative process with our customer may be protracted. Based on the circumstances, we periodically file requests for equitable adjustment (REAs) that are sometimes converted into claims. In some cases, these requests are disputed by our customer. We believe our outstanding modifications, REAs and other claims will be resolved without material impact to our results of operations, financial condition or cash flows.
Letters of Credit and Guarantees. In the ordinary course of business, we have entered into letters of credit, bank guarantees, surety bonds and other similar arrangements with financial institutions and insurance carriers totaling approximately $1.4$1.3 billion on September 30, 2018.March 31, 2019. In addition, from time to time and in the ordinary course of business, we contractually guarantee the payment or performance of our subsidiaries arising under certain contracts.
Aircraft Trade-ins. In connection with orders for new aircraft in contract backlog, our Aerospace segment has outstanding options with some customers to trade in aircraft as partial consideration in their new-aircraft transaction. These trade-in commitments are generally structured to establish the fair market value of the trade-in aircraft at a date generally 45 or fewer days preceding delivery of the new aircraft to the customer. At that time, the customer is required to either exercise the option or allow its expiration. AnyOther trade-in commitments are structured to guarantee a pre-determined trade-in value. These commitments present more risk in the event of an adverse change in market conditions. In either case, any excess of the pre-established trade-in price above the fair market value at the time the new aircraft is delivered is treated as a reduction of revenue in the new-aircraft sales transaction. As of March 31, 2019, the estimated change in fair market values from the date of the commitments was not material.
Product Warranties. We provide warranties to our customers associated with certain product sales. We record estimated warranty costs in the period in which the related products are delivered. The warranty liability recorded at each balance sheet date is based generally on the number of months of warranty coverage remaining for the products delivered and the average historical monthly warranty payments. Warranty obligations incurred in connection with long-term production contracts are accounted for within the contract estimates at completion. Our other warranty obligations, primarily for business-jet aircraft, are included in other current and noncurrent liabilities on the Consolidated Balance Sheet.
The changes in the carrying amount of warranty liabilities for the nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and October 1, 2017, were as follows:
Nine Months EndedSeptember 30, 2018 October 1, 2017
Three Months EndedMarch 31, 2019 April 1, 2018
Beginning balance$467
 $474
$480
 $467
Warranty expense87
 104
27
 29
Payments(77) (84)(24) (25)
Adjustments(16) (28)(1) (3)
Ending balance$461
 $466
$482
 $468



N. LEASES
We determine at its inception whether an arrangement that provides us control over the use of an asset is a lease. We recognize at lease commencement a right-of-use (ROU) asset and lease liability based on the present value of the future lease payments over the lease term. We have elected not to recognize a ROU asset and lease liability for leases with terms of 12 months or less. Certain of our leases include options to extend the term of the lease for up to 30 years or to terminate the lease within 1 year. When it is reasonably certain that we will exercise the option, we include the impact of the option in the lease term for purposes of determining total future lease payments. As most of our lease agreements do not explicitly state the discount rate implicit in the lease, we use our incremental borrowing rate on the commencement date to calculate the present value of future payments.
Our leases commonly include payments that are based on the Consumer Price Index (CPI) or other similar indices. These variable lease payments are included in the calculation of the ROU asset and lease liability. Other variable lease payments, such as usage-based amounts, are excluded from the ROU asset and lease liability, and are expensed as incurred. In addition to the present value of the future lease payments, the calculation of the ROU asset also includes any deferred rent, lease pre-payments and initial direct costs of obtaining the lease, such as commissions.
In addition to the base rent, real estate leases typically contain provisions for common-area maintenance and other similar services, which are considered non-lease components for accounting purposes. For our real estate leases, we apply a practical expedient to include these non-lease components in calculating the ROU asset and lease liability. For all other types of leases, non-lease components are excluded from our ROU assets and lease liabilities and expensed as incurred.
Our leases are for office space, manufacturing facilities, and machinery and equipment. Real estate represents over 75% of our lease obligations.
The components of lease costs were as follows:
Three Months EndedMarch 31, 2019
Finance lease cost
    Amortization of right-of-use assets$21
    Interest on lease liabilities7
Operating lease cost86
Short-term lease cost13
Sublease income(4)
Total lease costs, net$123


Additional information related to leases was as follows:
Three Months EndedMarch 31, 2019
Cash paid for amounts included in the measurement of lease liabilities 
Operating cash flows from operating leases$88
Operating cash flows from finance leases7
Financing cash flows from finance leases16
Right-of-use assets obtained in exchange for lease liabilities 
Operating leases40
Finance leases6
Weighted-average remaining lease term 
Operating leases11.0 years
Finance leases5.6 years
Weighted-average discount rate 
Operating leases4%
Finance leases9%
The following is a reconciliation of future undiscounted cash flows to the operating and finance lease liabilities, and the related ROU assets, presented on our Consolidated Balance Sheet on March 31, 2019:
Year Ended December 31Operating Leases Finance Leases
2019 (excluding the three months ended March 31, 2019)$233
 $67
2020253
 81
2021208
 74
2022161
 74
2023122
 29
Thereafter722
 66
Total future lease payments1,699
 391
Less imputed interest315
 81
Present value of future lease payments1,384
 310
Less current portion of lease liabilities255
 66
Long-term lease liabilities$1,129
 $244
ROU assets$1,315
 $357
Lease liabilities are included on our Consolidated Balance Sheet in current and noncurrent other liabilities, while ROU assets are included in noncurrent other assets.
As of March 31, 2019, we have additional future payments on leases that have not yet commenced of $218. These leases will commence between 2019 and 2020 and have lease terms of 1 to 20 years.


As we have not restated prior-year information for our adoption of ASC Topic 842, the following presents our future minimum lease payments for operating leases and capital leases under ASC Topic 840 on December 31, 2018:
Year Ended December 31Operating LeasesCapital Leases
2019$297
$92
2020234
84
2021196
78
2022154
79
2023110
30
Thereafter698
70
Total future minimum lease payments$1,689
433
Less amount representing interest*
95
Less amount representing executory costs*
19
Present value of net minimum lease payments*
319
Less current maturities of capital lease liabilities*
64
Noncurrent capital lease liabilities*
$255
* Not applicable for operating leases.

N.O. RETIREMENT PLANS
We provide defined-contribution benefits to eligible employees, as well as some remaining defined-benefit pension and other post-retirement benefits.


Net periodic defined-benefit pension and other post-retirement benefit cost (credit) for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and October 1, 2017, consisted of the following:
Pension BenefitsOther Post-retirement BenefitsPension BenefitsOther Post-retirement Benefits
Three Months EndedSeptember 30, 2018 
October 1,
2017
September 30, 2018 
October 1,
2017
March 31, 2019 April 1, 2018March 31, 2019 April 1, 2018
Service cost$45
 $42
$3
 $3
$28
 $46
$2
 $3
Interest cost140
 113
8
 8
150
 114
9
 8
Expected return on plan assets(225) (169)(10) (8)(228) (179)(9) (9)
Recognized net actuarial loss (gain)94
 86
(1) (1)70
 96
(2) (1)
Amortization of prior service credit(11) (17)(1) (1)(4) (11)(1) (1)
Net periodic benefit cost (credit)$43
 $55
$(1) $1
$16
 $66
$(1) $
Nine Months Ended     
Service cost$135
 $126
$8
 $9
Interest cost394
 339
24
 25
Expected return on plan assets(632) (508)(29) (25)
Recognized net actuarial loss (gain)283
 258
(3) (3)
Amortization of prior service credit(33) (50)(3) (3)
Net periodic benefit cost (credit)$147
 $165
$(3) $3
As discussedBeginning in Note A,2019, we decreased the service cost componentexpected long-term rates of net periodicreturn on assets in our primary U.S. other post-retirement benefit cost (credit) is reported separately fromplans by 100 basis points, following an assessment of the other componentshistorical and expected long-term returns of net periodic benefit cost (credit) in accordance with ASU 2017-07.our various asset classes.
Our contractual arrangements with the U.S. government provide for the recovery of contributions to our pension and other post-retirement benefit plans covering employees working in our defense segments. For non-funded plans, our government contracts allow us to recover claims paid. Following payment, these recoverable amounts are allocated to contracts and billed to the customer in accordance with the Cost Accounting Standards (CAS) and specific contractual terms. For some of these plans, the cumulative pension and other post-retirement benefit cost exceeds the amount currently allocable to contracts. To the extent we consider recovery of the cost to be probable based on our backlog and probable follow-on contracts,


we defer the excess in other contract costs in other current assets on the Consolidated Balance Sheet until the cost is allocable to contracts. For other plans, the amount allocated to contracts and included in revenue has exceeded the plans’ cumulative benefit cost. We have similarly deferred recognition of these excess earnings on the Consolidated Balance Sheet.
It is our policy to fund our defined-benefit retirement plans in a manner that optimizes the tax deductibility and contract recovery of contributions considered within our capital deployment framework. Therefore, we may make discretionary contributions in addition to the required contributions determined in accordance with IRS regulations. In addition to our required contributions of approximately $315 in 2018, we made a discretionary contribution of $255 in the third quarter of 2018, resulting in total pension plan contributions of approximately $570 in 2018. The additional contribution was considered to be a significant event in accordance with ASC Topic 715 and, therefore, triggered a remeasurement of the 2018 net periodic defined-benefit pension cost. The remeasured defined-benefit pension cost amount is reflected in the table above. Additionally, the net periodic defined-benefit pension and OPEB cost (credit) amounts in the table above reflect the inclusion of legacy CSRA plans assumed in connection with the acquisition as of the acquisition date.



O.P. SEGMENT INFORMATION
We have five operating segments, Aerospace, Combat Systems, Information Technology, Mission Systems and Marine Systems. We organize our segments in accordance with the nature of products and services offered. We measure each segment’s profitability based on operating earnings. As a result, we do not allocate net interest, other income and expense items, and income taxes to our segments.
Summary financial information for each of our segments follows:
RevenueOperating Earnings
Revenue from
U.S. Government
RevenueOperating Earnings
Three Months EndedSeptember 30, 2018October 1, 2017September 30, 2018October 1, 2017September 30, 2018October 1, 2017March 31, 2019April 1, 2018March 31, 2019April 1, 2018
Aerospace$2,031
$1,995
$376
$381
$48
$48
$2,240
$1,825
$328
$346
Combat Systems1,523
1,500
241
247
765
754
1,636
1,440
206
224
Information
Technology
2,307
1,068
157
101
2,245
1,011
2,169
1,138
156
101
Mission Systems1,230
1,086
179
152
994
892
1,158
1,098
148
146
Marine Systems2,003
1,931
169
179
1,932
1,921
2,058
2,034
180
184
Corporate

13
3




(4)7
Total$9,094
$7,580
$1,135
$1,063
$5,984
$4,626
$9,261
$7,535
$1,014
$1,008
Nine Months Ended 
Aerospace$5,751
$6,147
$1,108
$1,241
$213
$138
Combat Systems4,497
4,201
701
677
2,188
2,217
Information
Technology
5,887
3,178
414
278
5,693
2,985
Mission Systems3,475
3,226
478
451
2,769
2,591
Marine Systems6,205
5,944
548
518
5,983
5,872
Corporate

(18)11


Total$25,815
$22,696
$3,231
$3,176
$16,846
$13,803
Corporate operating results have two primary components: pension and other post-retirement benefit income, and stock option expense. ASU 2017-07 requiresWe are required to report the non-service cost components of pension and other post-retirement benefit cost (e.g., interest cost) to be reported in other income (expense) in the Consolidated Statement of Earnings. InAs described in Note O, in our defense segments, as described in Note N, pension and other post-retirement benefit costs are allocablerecoverable contract costs. For these segments, we report the offset forTherefore, the non-service cost components are included in Corporate operating results. Corporatethe operating results of these segments, but an offset is reported in the first nine months of 2018 also included one-time charges of approximately $45 associated with the costs to complete the CSRA acquisition.Corporate.


The following is additional summary financial information for each of our segments:
 Capital ExpendituresDepreciation and Amortization
Nine Months EndedSeptember 30, 2018October 1, 2017September 30, 2018October 1, 2017
Aerospace$142
$87
$112
$112
Combat Systems47
49
64
63
Information Technology36
9
229
23
Mission Systems39
34
49
43
Marine Systems147
71
83
79
Corporate36
23
5
6
Total$447
$273
$542
$326
Identifiable assets for each of our segments follows:
 September 30, 2018 December 31, 2017
Aerospace$11,444
 $10,126
Combat Systems10,584
 9,846
Information Technology14,674
 3,021
Mission Systems6,093
 5,856
Marine Systems2,945
 2,906
Corporate*1,223
 3,291
Total$46,963
 $35,046
* Corporate identifiable assets are primarily cash and equivalents.


P.Q. CONDENSED CONSOLIDATING FINANCIAL STATEMENTS
The fixed- and floating-rate notes described in Note I are fully and unconditionally guaranteed on an unsecured, joint and several basis by several of our 100%-owned subsidiaries (the guarantors). The following condensed consolidating financial statements illustrate the composition of the parent, the guarantors on a combined basis (each guarantor together with its majority-owned subsidiaries) and all other subsidiaries on a combined basis.



CONDENSED CONSOLIDATING STATEMENT OF EARNINGS (UNAUDITED)

Three Months Ended September 30, 2018Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Revenue$
$6,811
$2,283
$
$9,094
Cost of sales26
(5,518)(1,915)
(7,407)
G&A(15)(393)(144)
(552)
Operating earnings11
900
224

1,135
Interest, net(105)(2)(7)
(114)
Other, net(16)3
15

2
Earnings before income tax(110)901
232

1,023
Provision for income tax, net12
(132)(39)
(159)
Discontinued operations, net of tax(13)


(13)
Equity in net earnings of subsidiaries962


(962)
Net earnings$851
$769
$193
$(962)$851
Comprehensive income$1,048
$790
$322
$(1,112)$1,048
Three Months Ended October 1, 2017     
Revenue$
$6,556
$1,024
$
$7,580
Cost of sales17
(5,226)(805)
(6,014)
G&A(14)(414)(75)
(503)
Operating earnings3
916
144

1,063
Interest, net(24)
(3)
(27)
Other, net(13)3
1

(9)
Earnings before income tax(34)919
142

1,027
Provision for income tax, net26
(283)(6)
(263)
Equity in net earnings of subsidiaries772


(772)
Net earnings$764
$636
$136
$(772)$764
Comprehensive income$1,035
$648
$371
$(1,019)$1,035



CONDENSED CONSOLIDATING STATEMENT OF EARNINGS (UNAUDITED)
Nine Months Ended September 30, 2018Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Revenue$
$20,088
$5,727
$
$25,815
Cost of sales54
(16,195)(4,742)
(20,883)
G&A(73)(1,247)(381)
(1,701)
Operating earnings(19)2,646
604

3,231
Interest, net(225)(1)(18)
(244)
Other, net(78)8
36

(34)
Earnings before income tax(322)2,653
622

2,953
Provision for income tax, net97
(475)(126)
(504)
Discontinued operations, net of tax(13)


(13)
Equity in net earnings of subsidiaries2,674


(2,674)
Net earnings$2,436
$2,178
$496
$(2,674)$2,436
Comprehensive income$2,533
$2,217
$416
$(2,633)$2,533
Nine Months Ended October 1, 2017 
Three Months Ended March 31, 2019Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Revenue$
$19,832
$2,864
$
$22,696
$
$6,945
$2,316
$
$9,261
Cost of sales48
(15,891)(2,208)
(18,051)18
(5,726)(1,925)
(7,633)
G&A(36)(1,206)(227)
(1,469)(22)(419)(173)
(614)
Operating earnings12
2,735
429

3,176
(4)800
218

1,014
Interest, net(71)
(5)
(76)(107)
(10)
(117)
Other, net(43)9
3

(31)(8)4
22

18
Earnings before income tax(102)2,744
427

3,069
(119)804
230

915
Provision for income tax, net119
(877)(35)
(793)31
(155)(46)
(170)
Equity in net earnings of subsidiaries2,259


(2,259)
833


(833)
Net earnings$2,276
$1,867
$392
$(2,259)$2,276
$745
$649
$184
$(833)$745
Comprehensive income$3,012
$1,907
$1,005
$(2,912)$3,012
$840
$652
$237
$(889)$840
Three Months Ended April 1, 2018  
Revenue$
$6,484
$1,051
$
$7,535
Cost of sales19
(5,202)(807)
(5,990)
G&A(13)(436)(88)
(537)
Operating earnings6
846
156

1,008
Interest, net(26)
(1)
(27)
Other, net(24)1
2

(21)
Earnings before income tax(44)847
157

960
Provision for income tax, net42
(165)(38)
(161)
Equity in net earnings of subsidiaries801


(801)
Net earnings$799
$682
$119
$(801)$799
Comprehensive income$866
$685
$137
$(822)$866



CONDENSED CONSOLIDATING BALANCE SHEET (UNAUDITED)

September 30, 2018Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
March 31, 2019Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
  
ASSETS  
Current assets:  
Cash and equivalents$649
$
$361
$
$1,010
$329
$
$344
$
$673
Accounts receivable
1,054
2,682

3,736

1,253
2,465

3,718
Unbilled receivables
2,848
4,716

7,564

2,985
4,382

7,367
Inventories
6,094
153

6,247

6,067
118

6,185
Other current assets8
877
516

1,401
(43)445
522

924
Total current assets657
10,873
8,428

19,958
286
10,750
7,831

18,867
Noncurrent assets:  
Property, plant and equipment (PP&E)254
7,127
1,893

9,274
288
7,263
1,594

9,145
Accumulated depreciation of PP&E(81)(4,089)(860)
(5,030)(85)(4,138)(868)
(5,091)
Intangible assets, net
266
2,401

2,667

241
2,277

2,518
Goodwill
7,991
11,495

19,486

8,036
11,632

19,668
Other assets201
229
178

608
207
1,052
1,100

2,359
Net investment in subsidiaries27,308


(27,308)
27,050


(27,050)
Total noncurrent assets27,682
11,524
15,107
(27,308)27,005
27,460
12,454
15,735
(27,050)28,599
Total assets$28,339
$22,397
$23,535
$(27,308)$46,963
$27,746
$23,204
$23,566
$(27,050)$47,466
  
LIABILITIES AND SHAREHOLDERS’ EQUITY  
Current liabilities:  
Short-term debt and current portion of long-term debt$1,671
$1
$6
$
$1,678
$1,863
$
$234
$
$2,097
Customer advances and deposits
4,496
2,831

7,327

4,245
2,450

6,695
Other current liabilities586
3,881
2,217

6,684
691
4,000
1,899

6,590
Total current liabilities2,257
8,378
5,054

15,689
2,554
8,245
4,583

15,382
Noncurrent liabilities:  
Long-term debt11,391
5
7

11,403
11,405
39
7

11,451
Other liabilities1,936
3,514
1,666

7,116
1,553
4,656
2,190

8,399
Total noncurrent liabilities13,327
3,519
1,673

18,519
12,958
4,695
2,197

19,850
Total shareholders’ equity12,755
10,500
16,808
(27,308)12,755
12,234
10,264
16,786
(27,050)12,234
Total liabilities and shareholders’ equity$28,339
$22,397
$23,535
$(27,308)$46,963
$27,746
$23,204
$23,566
$(27,050)$47,466



CONDENSED CONSOLIDATING BALANCE SHEET

December 31, 2017Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
December 31, 2018Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
  
ASSETS  
Current assets:  
Cash and equivalents$1,930
$
$1,053
$
$2,983
$460
$
$503
$
$963
Accounts receivable
1,259
2,358

3,617

1,171
2,588

3,759
Unbilled receivables
2,547
2,693

5,240

2,758
3,818

6,576
Inventories
5,216
87

5,303

5,855
122

5,977
Other current assets351
461
373

1,185
(45)441
518

914
Total current assets2,281
9,483
6,564

18,328
415
10,225
7,549

18,189
Noncurrent assets:  
PP&E221
6,779
1,237

8,237
Property, plant and equipment (PP&E)

273
7,177
1,522

8,972
Accumulated depreciation of PP&E(75)(3,869)(776)
(4,720)(83)(4,071)(840)
(4,994)
Intangible assets, net
287
415

702

251
2,334

2,585
Goodwill
8,320
3,594

11,914

8,031
11,563

19,594
Other assets199
232
154

585
195
274
593

1,062
Net investment in subsidiaries15,771


(15,771)
25,313


(25,313)
Total noncurrent assets16,116
11,749
4,624
(15,771)16,718
25,698
11,662
15,172
(25,313)27,219
Total assets$18,397
$21,232
$11,188
$(15,771)$35,046
$26,113
$21,887
$22,721
$(25,313)$45,408
  
LIABILITIES AND SHAREHOLDERS’ EQUITY  
Current liabilities:  
Short-term debt and current portion of long-term debt$
$1
$1
$
$2
$850
$
$123
$
$973
Customer advances and deposits
4,180
2,812

6,992

4,541
2,729

7,270
Other current liabilities561
3,758
1,786

6,105
552
3,944
2,000

6,496
Total current liabilities561
7,939
4,599

13,099
1,402
8,485
4,852

14,739
Noncurrent liabilities:  
Long-term debt3,950
21
9

3,980
11,398
39
7

11,444
Other liabilities2,451
3,473
608

6,532
1,581
4,073
1,839

7,493
Total noncurrent liabilities6,401
3,494
617

10,512
12,979
4,112
1,846

18,937
Total shareholders’ equity11,435
9,799
5,972
(15,771)11,435
11,732
9,290
16,023
(25,313)11,732
Total liabilities and shareholders’ equity$18,397
$21,232
$11,188
$(15,771)$35,046
$26,113
$21,887
$22,721
$(25,313)$45,408



CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS (UNAUDITED)

Nine Months Ended September 30, 2018Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Net cash provided by operating activities*$(204)$1,561
$(276)$
$1,081
Three Months Ended March 31, 2019Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Net cash (used) provided by operating activities*$59
$(167)$(687)$
$(795)
Cash flows from investing activities:  
Business acquisitions, net of cash acquired(9,749)(74)(216)
(10,039)
Capital expenditures(36)(331)(80)
(447)(20)(106)(55)
(181)
Other, net93
76


169
5
1
(12)
(6)
Net cash used by investing activities(9,692)(329)(296)
(10,317)(15)(105)(67)
(187)
Cash flows from financing activities:  
Proceeds from fixed-rate notes6,461



6,461
Proceeds from commercial paper, net
1,668



1,668
1,010



1,010
Proceeds from floating-rate notes1,000



1,000
Dividends paid(801)


(801)(268)


(268)
Purchases of common stock(533)


(533)(133)


(133)
Repayment of CSRA accounts receivable purchase
agreement


(450)
(450)
Other, net(10)
(58)
(68)(5)
93

88
Net cash provided by financing activities7,785

(508)
7,277
604

93

697
Net cash used by discontinued operations(14)


(14)(5)


(5)
Cash sweep/funding by parent844
(1,232)388


(774)272
502


Net decrease in cash and equivalents(1,281)
(692)
(1,973)(131)
(159)
(290)
Cash and equivalents at beginning of period1,930

1,053

2,983
460

503

963
Cash and equivalents at end of period$649
$
$361
$
$1,010
$329
$
$344
$
$673
Nine Months Ended October 1, 2017 
Net cash provided by operating activities*$145
$1,503
$234
$
$1,882
Three Months Ended April 1, 2018 
Net cash (used) provided by operating activities*$80
$105
$(681)$
$(496)
Cash flows from investing activities:  
Business acquisitions, net of cash acquired
(315)(49)
(364)
Capital expenditures(23)(205)(45)
(273)(7)(86)(11)
(104)
Other, net5
49
(2)
52
1
(2)

(1)
Net cash used by investing activities(18)(471)(96)
(585)(6)(88)(11)
(105)
Cash flows from financing activities: 
 
Proceeds from commercial paper, net2,494



2,494
Purchases of common stock(1,172)


(1,172)(267)


(267)
Proceeds from fixed-rate notes985



985
Dividends paid(735)


(735)(250)


(250)
Other, net43
(2)

41
(25)


(25)
Net cash used by financing activities(879)(2)

(881)
Net cash provided by financing activities1,952



1,952
Net cash used by discontinued operations(28)


(28)(2)


(2)
Cash sweep/funding by parent1,097
(1,030)(67)

(167)(17)184


Net increase in cash and equivalents317

71

388
1,857

(508)
1,349
Cash and equivalents at beginning of period1,254

1,080

2,334
1,930

1,053

2,983
Cash and equivalents at end of period$1,571
$
$1,151
$
$2,722
$3,787
$
$545
$
$4,332
* Continuing operations only.


ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS
(Dollars in millions, except per-share amounts or unless otherwise noted)

BUSINESS OVERVIEW
General Dynamics is a global aerospace and defense company that offers a broad portfolio of products and services in business aviation; combat vehicles, weapons systems and munitions; information technology (IT) services; C4ISR (command, control, communications, computers, intelligence, surveillance and reconnaissance) solutions; and shipbuilding and ship repair.
On April 3, 2018, we completed our acquisition of CSRA Inc. (CSRA). See Note B to the unaudited Consolidated Financial Statements in Part I, Item 1, for further discussion of the acquisition. CSRA has been combined with General Dynamics Information Technology (GDIT) to create a premier provider of IT solutions to the defense, intelligence and federal civilian markets.
For segment reporting purposes, concurrent with the acquisition of CSRA, our Information Systems and Technology operating segment was reorganized into the Information Technology and Mission Systems segments. Our company now hasWe operate through five operating segments: Aerospace, Combat Systems, Information Technology, Mission Systems and Marine Systems. We collectively refer to Combat Systems, Information Technology, Mission Systems and Marine Systems as our defense segments. Prior-period segment information has been restated for this change.
Our primary customer is the U.S. government, including the Department of Defense (DoD), the intelligence community and other U.S. government customers. We also have significant business with non-U.S. governments and a diverse base of corporate and individual buyers of business-jet aircraft. The following discussion should be read in conjunction with our 20172018 Annual Report on Form 10-K and with the unaudited Consolidated Financial Statements included in this Form 10-Q.

RESULTS OF OPERATIONS
INTRODUCTION
An understanding of our accounting practices is necessary in the evaluation of our financial statements and operating results. The following paragraphs explain how we recognize revenue and operating costs in our operating segments. We account for revenue in accordance with Accounting Standards Codification (ASC) Topic 606, Revenue from Contracts with Customers.
In the Aerospace segment, we record revenue on contracts for new aircraft when the customer obtains control of the asset, which is generally upon delivery and acceptance by the customer of the fully outfitted aircraft. Revenue associated with the segment’s custom completions of other original equipment manufacturers’ (OEMs)narrow-body and wide-body aircraft and the segment’s services businesses is recognized as work progresses or upon delivery of services. Fluctuations in revenue from period to period result from the number and mix of new aircraft deliveries, progress on aircraft completions, and the level and type of aircraft service activityservices performed during the period.
The majority of the Aerospace segment’s operating costs relaterelates to new aircraft production on firm orders and consistconsists of labor, material, subcontractor and overhead costs. The costs are accumulated in production lots, recorded in inventory and recognized as operating costs at aircraft delivery based on the estimated


average unit cost in a production lot. While changes in the estimated average unit cost for a production lot impact the level of operating costs, the amount of operating costs reported in a given period is based largely on the number and type of aircraft delivered. Operating costs in the Aerospace segment’s completions and services businesses are recognized generally as incurred.
For new aircraft, operating earnings and margin are a function of the prices of our aircraft, our operational efficiency in manufacturing and outfitting the aircraft, and the mix of ultra-large-cabin, large-cabin and mid-cabin aircraft deliveries. Additional factors affecting the segment’s earnings and margin include the volume, mix and profitability of completions and services work performed, the volume of and market for


pre-owned aircraft, and the level of general and administrative (G&A) and net research and development (R&D) costs incurred by the segment.
In the defense segments, revenue on long-term government contracts is recognized generally over time as the work progresses, either as the products are produced or as services are rendered. Typically, revenue is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material, overhead and, when appropriate, G&A expenses. Variances in costs recognized from period to period reflect primarily increases and decreases in production or activity levels on individual contracts. Because costs are used as a measure of progress, year-over-year variances in cost result in corresponding variances in revenue, which we generally refer to as volume.
Operating earnings and margin in the defense segments are driven by changes in volume, performance or contract mix. Performance refers to changes in profitability based on adjustments to estimates at completion on individual contracts. These adjustments result from increases or decreases to the estimated value of the contract, the estimated costs to complete the contract or both. Therefore, changes in costs incurred in the period compared with prior periods do not necessarily impact profitability. It is only when total estimated costs at completion on a given contract change without a corresponding change in the contract value that the profitability of that contract may be impacted. Contract mix refers to changes in the volume of higher- versus lower-margin work. Higher or lower margins can result from a number of factors, including contract type (e.g., fixed-price/cost-reimbursable) and type of work (e.g., development/production).

CONSOLIDATED OVERVIEW
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$9,094
 $7,580
 $1,514
 20.0%$9,261
 $7,535
 $1,726
 22.9%
Operating costs and expenses(7,959) (6,517) (1,442) 22.1%(8,247) (6,527) (1,720) 26.4%
Operating earnings1,135
 1,063
 72
 6.8%1,014
 1,008
 6
 0.6%
Operating margin12.5% 14.0%    10.9% 13.4%    
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$25,815
 $22,696
 $3,119
 13.7%
Operating costs and expenses(22,584) (19,520) (3,064) 15.7%
Operating earnings3,231
 3,176
 55
 1.7%
Operating margin12.5% 14.0%    
Our consolidated revenue increased in the thirdfirst quarter of 20182019 driven by growth in all of our segments. Consolidated revenue increased in the first nine months of 2018 as revenueThe growth in eachour IT segment was driven by the acquisition of our defense segments offset a decreaseCSRA Inc. (CSRA), which we acquired on April 3, 2018. See Note B to the unaudited Consolidated Financial Statements in revenuePart I, Item 1, for further discussion of the acquisition. There were also significant increases in our Aerospace segment due to feweradditional aircraft deliveries. The increase in consolidated revenue, in both periods, was due primarily to the CSRA acquisitiondeliveries and in our Information Technology segment. Excluding CSRA, revenue increased in our defense segments by 5.6% and 6.4% in the third quarter and first nine months of 2018, respectively, compared with the prior-year periods. This increase wasCombat Systems segment due to higher volume from internationalU.S. military vehicle programs in our Combat Systems segment, U.S. Navy ship construction in our Marine Systems segment and higher volume across the portfolio in our Mission Systems segment.programs.
Operating costs and expenses increased at a greater rate than revenue in the thirdfirst quarter and first nine months of 20182019, resulting in a lower operating margin, due primarily to the CSRA acquisition, including the impact of intangible asset amortization expense and one-time transaction-related charges associated with the costs to complete the acquisition, resulting in lower margins compared with the prior-year periods. The operating margin in the third quarter and first nine months of 2018 was also impacted by a less favorable aircraft delivery mix in our Aerospace segment consistent with our plan as we transition toand intangible asset amortization expense from the new G500 and G600 aircraft.CSRA acquisition.



REVIEW OF OPERATING SEGMENTS
Following is a discussion of operating results and outlook for each of our operating segments. For the Aerospace segment, results are analyzed by specific types of products and services, consistent with how the segment is managed. For the defense segments, the discussion is based on the lines of products and services offered with a supplemental discussion of specific contracts and programs when significant to the results. Additional information regarding our segments can be found in Note OP to the unaudited Consolidated Financial Statements in Part I, Item 1.
AEROSPACE
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$2,031
 $1,995
 $36
 1.8 %$2,240
 $1,825
 $415
 22.7 %
Operating earnings376
 381
 (5) (1.3)%328
 346
 (18) (5.2)%
Operating margin18.5% 19.1%    14.6% 19.0%    
Gulfstream aircraft deliveries (in units)

27
 30
 (3) (10.0)%34
 26
 8
 30.8 %
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$5,751
 $6,147
 $(396) (6.4)%
Operating earnings1,108
 1,241
 (133) (10.7)%
Operating margin19.3% 20.2%    
Gulfstream aircraft deliveries (in units)79
 90 (11) (12.2)%
Operating Results
The changeincrease in the Aerospace segment’s revenue in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
Third Quarter Nine Months
Aircraft manufacturing and completions$(125) $(626)$324
Aircraft services103
 205
57
Pre-owned aircraft58
 25
34
Total increase (decrease)$36
 $(396)
Total increase$415
Aircraft manufacturing and completions revenue decreasedincreased due to feweradditional deliveries of the ultra-large-cabin G650 andnew large-cabin G450 aircraft consistent with our plan as we transition to the production of the new G500 and G600 aircraft. We received type certification from the U.S. Federal Aviation Administration (FAA) for the G500 aircraft, in July 2018 and delivered the first G500 aircraftwhich entered into service in the third quarter of 2018. Additionally, we continue to progress toward anticipated FAA type certification later this year and entry into service in 2019 of the new G600 aircraft.
The increase in aircraft services revenue was driven by higher demand for maintenance work and the acquisition in the second quarter of 2018 of Hawker Pacific, a leading provider of integrated aviation solutions across Asia Pacific and the Middle East. We had twosold four pre-owned aircraft sales in the thirdfirst quarter of 20182019 compared with one in the prior-year period. While we sold the same number of pre-owned aircraft in the first nine months of 2018 compared with the prior-year period, the mix of aircraft sold resulted in higher pre-owned aircraft revenue in 2018.
The change in the segment’s operating earnings in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
Third Quarter Nine Months
Aircraft manufacturing and completions$(26) $(217)$(30)
Aircraft services15
 47
Pre-owned aircraft(1) 1
(2)
G&A/other expenses7
 36
14
Total decrease$(5) $(133)$(18)
Aircraft manufacturing and completions operating earnings were down due to fewer G650 aircraft deliveries, offset partially by a favorable supplier settlement receivedshift in the third quarter of 2018. Aircraft services operating earnings were particularly strong due to favorable cost performance and the mix of services provided.Gulfstream aircraft deliveries to the G500 and the typical lower margin associated with initial units of a new aircraft model. The segment’s operating earnings were impacted favorably by lower G&A/other expenses, including reduced R&D expenses as a result of the receipt of milestone payments from suppliers under our cost-sharing arrangements.
expenses. Overall, the Aerospace segment’s operating margin decreased 60440 basis points in the third quarter of 2018 and 90 basis points in the first nine months of 2018 compared with the prior-year periods. The decrease was driven by a less favorable aircraft delivery mix consistent with our plan as we transition to the G500 and G600 aircraft.points.



2018 Outlook
We expect the Aerospace segment’s 2018 revenue to be around $8.5 billion on strong fourth quarter revenue from initial deliveries of the new G500 aircraft. We expect operating earnings to be approximately $1.5 billion and operating margin to be in the high-17% range. Operating margin reflects the impact of the G500 aircraft deliveries, which carry the typical lower margin associated with the initial units of a new aircraft model.
COMBAT SYSTEMS
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$1,523
 $1,500
 $23
 1.5 %$1,636
 $1,440
 $196
 13.6 %
Operating earnings241
 247
 (6) (2.4)%206
 224
 (18) (8.0)%
Operating margin15.8% 16.5%    12.6% 15.6%    
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$4,497
 $4,201
 $296
 7.0 %
Operating earnings701
 677
 24
 3.5 %
Operating margin15.6% 16.1%    
Operating Results
The increase in the Combat Systems segment’s revenue in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
Third Quarter Nine Months
U.S. military vehicles$105
International military vehicles$20
 $266
51
U.S. military vehicles18
 23
Weapons systems and munitions(15) 7
40
Total increase$23
 $296
$196
Revenue from U.S. Military vehicles increased due to higher volume on the U.S. Army’s Abrams tank programs, including work to produce Abrams M1A2 System Enhancement Package Version 3 (SEPv3) tanks, and the new Mobile Protected Firepower (MPF) vehicle. Additionally, revenue from international military vehicles increased due primarily to the ramp uphigher volume on programs to produce Piranha wheeled armored vehicles for several international customers. Additionally, in the first nine months of 2018,vehicle programs. Weapons systems and munitions revenue increasedwas up due to increased volume on several products, including Hydra-70 rockets for the transition from engineering to production on the U.K. AJAX armoured fighting vehicles program.U.S. government.
The Combat Systems segment’s operating margin decreased 70300 basis points in the third quarter and 50 basis points in the first nine months of 2018 compared with the prior-year periods driven by contract mix in our U.S. military vehicles business.
2018 Outlook
We expectbusiness and a settlement relating to a lease at a former operating site outside the Combat Systems segment’s 2018 revenue to be approximately $6.2 billion. Operating margin is expected to be in the mid-15% range.


United States.
INFORMATION TECHNOLOGY
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$2,307
 $1,068
 $1,239
 116.0%$2,169
 $1,138
 $1,031
 90.6%
Operating earnings157
 101
 56
 55.4%156
 101
 55
 54.5%
Operating margin6.8% 9.5%    7.2% 8.9%    
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$5,887
 $3,178
 $2,709
 85.2%
Operating earnings414
 278
 136
 48.9%
Operating margin7.0% 8.7%    
Operating Results
The Information Technology segment’s revenue increased due primarily tofrom the CSRA acquisition in the second quarter of 2018. This increase was offset partially by the sale of the segment’s public-facing contact-center business in the fourth quarter of 2018. Operating margin decreased 270 basis points in the third quarter and 170 basis points in the first nine months of 2018 compared with the prior-year periods due to intangible asset amortization expense from the CSRA acquisition. Excluding the impact of this amortization, operating margin increased 1060 basis points in the third quarter and 50 basis points in the first nine months of 2018 compared with the prior-year periodsto 9.5% due to the addition of CSRA’s higher-margin, fixed-price work.
2018 Outlook
We expect the Information Technology segment’s 2018 revenue to be approximately $8.2 billion with operating margin in the low-7% range.
MISSION SYSTEMS
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$1,230
 $1,086
 $144
 13.3%$1,158
 $1,098
 $60
 5.5%
Operating earnings179
 152
 27
 17.8%148
 146
 2
 1.4%
Operating margin14.6% 14.0%    12.8% 13.3%    
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$3,475
 $3,226
 $249
 7.7%
Operating earnings478
 451
 27
 6.0%
Operating margin13.8% 14.0%    


Operating Results
The increase in the Mission Systems segment’s revenue in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
 Third Quarter Nine Months
Intelligence, surveillance and reconnaissance (ISR) systems$47
 $134
Communication systems61
 88
Platform systems and sensors36
 27
Total increase$144
 $249


Ground systems and products$65
Naval, air and electronic systems17
Space, intelligence and cyber systems(22)
Total increase$60
Revenue from ISR systems increased due to higher volume on several programs in our space and intelligence systems business and increased demand for our portfolio of encryption products. Communication systems revenue grewthe Mission Systems segment was up due primarily to increased activity on U.S. Army mobile communications networking programs andhigher demand for computing and communications equipment volume.and increased volume on our ground-based satellite communication systems programs in our ground systems and products business.
The Mission Systems segment’s operating margin was up 60down 50 basis points in the third quarter of 2018, but down slightly in the first nine months of 2018 compared with the prior-year periods due to variations in program performance and mix.
2018 Outlook
We expect Mission Systems’ 2018 revenue to be between $4.8 and $4.9 billion with operating margin around 14%.
MARINE SYSTEMS
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$2,003
 $1,931
 $72
 3.7 %$2,058
 $2,034
 $24
 1.2 %
Operating earnings169
 179
 (10) (5.6)%180
 184
 (4) (2.2)%
Operating margin8.4% 9.3%    8.7% 9.0%    
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$6,205
 $5,944
 $261
 4.4 %
Operating earnings548
 518
 30
 5.8 %
Operating margin8.8% 8.7%    
Operating Results
The increase in the Marine Systems segment’s revenue in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
Third Quarter Nine Months
U.S. Navy ship construction$63
 $230
$50
Commercial ship construction64
 156
(16)
U.S. Navy ship engineering, repair and other services(55) (125)(10)
Total increase$72
 $261
$24
Revenue from U.S. Navy ship construction increased withdue primarily to higher volume on Blocks IV and V of the Virginia-class submarine program, the Arleigh Burke-class (DDG-51) destroyer program and the T-AO-205 fleet replenishment oiler contract. Commercialprogram. This increase was partially offset by lower commercial ship construction revenue increased as work ramped up on a contract for two container ships. Revenue from U.S.and Navy ship engineering,overhaul and repair and other services decreased driven by a lower volume of submarine repair work and the timing of surface ship repair work. These decreases were offset partially by increased work on the Columbia-class submarine development program and Virginia-class submarine design enhancements.
The Marine Systems segment’s operating margin was up 10decreased 30 basis points indriven by mix shift on the first nine months of 2018, but decreased 90 basis points inVirginia-class program between the third quarter of 2018 compared withmature Block III contract and the prior-year periods. The decrease in third-quarter margin was due to changes in program timingBlock IV and mix.


2018 Outlook
We expect the Marine Systems segment’s 2018 revenue to be slightly over $8.5 billion. Operating margin is expected to be in the mid- to high-8% range.V contracts.
CORPORATE
Corporate operating results consisted of the following:
 Third Quarter Nine Months
2018 operating income (expense)$13
 $(18)
2017 operating income3
 11
Three Months EndedMarch 31, 2019 April 1, 2018
Operating (expense) income$(4) $7
The first nine months of 2018 included one-time transaction-related charges of approximately $45 associated with the costs to complete the CSRA acquisition. Excluding these charges, Corporate operating results have two primary components: pension and other post-retirement benefit income, and stock option expense.
As discussed in Note AWe are required to the unaudited Consolidated Financial Statements in Part I, Item 1, Corporate operating results are impacted by Accounting Standards Update (ASU) 2017-07. ASU 2017-07 requiresreport the non-service cost components of pension and other post-retirement benefit cost (e.g., interest cost) to be reported in other income (expense) in the Consolidated Statement of Earnings. In our defense


segments, pension and other post-retirement benefit costs are allocablerecoverable contract costs. For these segments, we report the offset forTherefore, the non-service cost components are included in Corporatethe operating results.results of these segments, but an offset is reported in Corporate. This amount exceeded our stock option expensedecreased in the third quarters and first nine months of 2018 and 2017.
We expect Corporate operating costs of approximately $252019, resulting in 2018.a net expense.

OTHER INFORMATION
PRODUCT REVENUE AND OPERATING COSTS
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$4,842
 $4,718
 $124
 2.6%$5,251
 $4,576
 $675
 14.8%
Operating costs(3,797) (3,635) (162) 4.5%(4,235) (3,546) (689) 19.4%
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$14,172
 $13,851
 $321
 2.3%
Operating costs(11,045) (10,670) (375) 3.5%
The increase in product revenue in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
Third Quarter Nine Months
Ship construction$134
 $393
Aircraft manufacturing and completions$324
Military vehicle production42
 343
142
C4ISR products8
 106
71
Aircraft manufacturing and completions(125) (626)
Ship construction66
Other, net65
 105
72
Total increase$124
 $321
$675


Ship constructionAircraft manufacturing and completions revenue increased with higher volume on Blocks IV and Vdue to additional deliveries of the Virginia-class submarine program, the DDG-51 destroyer program, the T-AO-205 fleet replenishment oiler contract and commercial container ship construction.new large-cabin G500 aircraft. Military vehicle production revenue increased due to higher volume on the ramp up onU.S. Army’s Abrams tank and MPF programs to produce Piranhaand international wheeled armored vehicles for several international customers. Additionally, in the first nine months of 2018, revenue increased due to the transition from engineering to production on the U.K. AJAX armoured fighting vehicles program.vehicle programs. C4ISR products revenue increased due to higher volume on several ISRground systems and communication systemsproducts programs. These increases were offset partially by lower aircraft manufacturing and completionsShip construction revenue due to fewer aircraft deliveries.increased with higher volume on the Virginia-class submarine program. The primary drivers of the increase in product operating costs were the changes in volume on the programs described above.
SERVICE REVENUE AND OPERATING COSTS
Three Months EndedSeptember 30, 2018 October 1, 2017 VarianceMarch 31, 2019 April 1, 2018 Variance
Revenue$4,252
 $2,862
 $1,390
 48.6%$4,010
 $2,959
 $1,051
 35.5%
Operating costs(3,610) (2,379) (1,231) 51.7%(3,398) (2,444) (954) 39.0%
Nine Months EndedSeptember 30, 2018 October 1, 2017 Variance
Revenue$11,643
 $8,845
 $2,798
 31.6%
Operating costs(9,838) (7,381) (2,457) 33.3%
The increase in service revenue in the thirdfirst quarter and first nine months of 20182019 consisted of the following:
Third Quarter Nine Months
IT services$1,239
 $2,709
$1,031
Aircraft services103
 205
57
Other, net48
 (116)(37)
Total increase$1,390
 $2,798
$1,051
IT services revenue increased due primarily to the CSRA acquisition in the second quarter of 2018. The aircraft services revenue increase was driven by higher demand for maintenance work and the acquisition of Hawker Pacific in the second quarter of 2018. Service operating costs increased at a higher rate than revenue due primarily to intangible asset amortization expense from the CSRA acquisition.


OTHER FINANCIAL INFORMATION
G&A Expenses
As a percentage of revenue, G&A expenses were 6.6% in the first ninethree months of 20182019 compared with 6.5%7.1% in the first ninethree months of 2017. We expect G&A expenses as a percentage of revenue in 2018 to be generally consistent with 2017.2018.
Interest, Net
Net interest expense was $244$117 in the first ninethree months of 20182019 compared with $76$27 in the prior-year period. The increase is due primarily to the impact of financing the CSRA acquisition, including the issuance of $7.5 billion of fixed- and floating-rate notes in the second quarter of 2018. We expect 2018 net interest expense to be approximately $355. See Note I to the unaudited Consolidated Financial Statements in Part I, Item 1, for additional information regarding our debt obligations, including interest rates.


Other, Net
Net other expenseincome was $34$18 in the first ninethree months of 20182019 compared with $31expense of $21 in the first ninethree months of 2017. Other expense represents2018. These amounts represent primarily the non-service cost components of pension and other post-retirement benefit cost, including amounts from legacy CSRA plans assumed as of the acquisition date. The 2018benefits, which became a net income item in 2019 versus a net expense also includes approximately $30 of transaction costs associated with the CSRA acquisition. In 2018, we expect net other expense to be approximately $25.in 2018.
Provision for Income Tax, Net
Our effective tax rate was 17.1%18.6% in the first ninethree months of 20182019 compared with 25.8%16.8% in the prior-year period. The decreaseincrease is due primarily to the reductiona reduced favorable effect of the U.S. corporate statutory tax rate from 35% to 21% beginning on January 1, 2018, resulting from the enactment of the Tax Cuts and Jobs Act (tax reform) on December 22, 2017. The effective tax rate in the first nine months of 2018 also included the impact ofexcess tax benefits associated with equity-based compensation and favorable effects of completing our 2017 tax return. For 2018, we anticipate a full-year effective tax rate in the low-18% range.
Discontinued Operations, Netfirst three months of Tax
Concurrent2019 compared with the acquisition of CSRA, we were required by a government customer to dispose of certain CSRA operations to address an organizational conflict of interest with respect to services provided to the customer. In the third quarter of 2018, we sold these operations. In accordance with U.S. generally accepted accounting principles (GAAP), the sale did not result in a gain for financial reporting purposes. However, the sale generated a taxable gain, resulting in tax expense of $13.2018.

BACKLOG AND ESTIMATED POTENTIAL CONTRACT VALUE
Our total backlog, including funded and unfunded portions, was $69.5$69.2 billion at the end of the thirdfirst quarter of 2018,2019, up 4.9%2% from $66.3$67.9 billion on July 1,December 31, 2018. Our total backlog is equal to our remaining performance obligations under contracts that meet the criteria in ASC Topic 606 as discussed in Note C to the unaudited Consolidated Financial Statements in Part I, Item 1. Our total estimatedpotential contract value, which combines total backlog with estimated potential contract value, was $104.2$103.2 billion on September 30, 2018, up 5.3% from $99 billion on July 1, 2018, a new record high.March 31, 2019.


The following table details the backlog and estimated potential contract value of each segment at the end of the thirdfirst quarter of 2019 and second quartersthe fourth quarter of 2018:
Funded Unfunded Total Backlog Estimated Potential Contract Value 
Total
Potential Contract Value
Funded Unfunded Total Backlog Estimated Potential Contract Value 
Total
Potential Contract Value
September 30, 2018March 31, 2019
Aerospace$11,696
 $173
 $11,869
 $2,239
 $14,108
$11,924
 $244
 $12,168
 $2,080
 $14,248
Combat Systems15,865
 395
 16,260
 3,857
 20,117
15,475
 515
 15,990
 4,185
 20,175
Information Technology5,222
 4,731
 9,953
 17,365
 27,318
4,770
 3,584
 8,354
 16,666
 25,020
Mission Systems5,024
 587
 5,611
 7,453
 13,064
5,081
 234
 5,315
 7,186
 12,501
Marine Systems16,615
 9,221
 25,836
 3,797
 29,633
19,935
 7,446
 27,381
 3,831
 31,212
Total$54,422
 $15,107
 $69,529
 $34,711
 $104,240
$57,185
 $12,023
 $69,208
 $33,948
 $103,156
                  
July 1, 2018December 31, 2018
Aerospace$12,187
 $157
 $12,344
 $2,282
 $14,626
$11,208
 $167
 $11,375
 $3,130
 $14,505
Combat Systems16,646
 376
 17,022
 2,840
 19,862
16,174
 424
 16,598
 4,187
 20,785
Information Technology4,633
 4,576
 9,209
 18,931
 28,140
4,717
 3,248
 7,965
 17,066
 25,031
Mission Systems4,636
 645
 5,281
 4,287
 9,568
4,890
 445
 5,335
 7,409
 12,744
Marine Systems17,310
 5,124
 22,434
 4,333
 26,767
18,837
 7,761
 26,598
 3,703
 30,301
Total$55,412
 $10,878
 $66,290
 $32,673
 $98,963
$55,826
 $12,045
 $67,871
 $35,495
 $103,366

AEROSPACE
Aerospace funded backlog represents new aircraft and custom completion orders for which we have definitive purchase contracts and deposits from customers. Unfunded backlog consists of agreements to provide future aircraft maintenance and support services. The Aerospace segment ended the thirdfirst quarter of 20182019 with backlog of $11.9$12.2 billion, compared with $12.3up 7% from $11.4 billion on July 1,December 31, 2018.
Orders in the thirdfirst quarter of 20182019 reflected demand across our product and services portfolio. We received orders for all models of in-production Gulfstream aircraft and achieved aThe segment’s book-to-bill ratio (orders divided by revenue) of 0.9-to-1was 1.4-to-1 in the thirdfirst quarter of 2018. The book-to-bill ratio was in excess of2019 and exceeded 1-to-1 over the trailing 12 months.
Beyond total backlog, estimated potential contract value in the Aerospace segment was $2.2$2.1 billion on September 30, 2018,March 31, 2019, compared with $2.3$3.1 billion on July 1,December 31, 2018. Estimated potential contract value represents primarily options and other agreements with existing customers to purchase new aircraft and long-term aircraft services agreements.

DEFENSE SEGMENTS
The total backlog in our defense segments represents the estimated remaining sales value of work to be performed under firm contracts. The funded portion of this backlog includes items that have been authorized and appropriated by the U.S. Congress and funded by customers, as well as commitments by international customers that are approved and funded similarly by their governments. The unfunded portion includes the amounts that we believe are likely to be funded, but there is no guarantee that future budgets and appropriations will provide the same funding level currently anticipated for a given program.


Estimated potential contract value in our defense segments includes unexercised options associated with existing firm contracts and work awarded on unfunded indefinite delivery, indefinite quantity (IDIQ) contracts. Contract options in our defense business represent agreements to perform additional work under existing contracts at the election of the customer. We recognize options in backlog when the customer exercises the option and establishes a firm order. For IDIQ contracts, we evaluate the amount of funding we expect to receive and include this amount in our estimated potential contract value. This amount is often less than the total IDIQ contract value, particularly when the contract has multiple awardees. The actual amount of funding received in the future may be higher or lower than our estimate of potential contract value.
Total backlog in our defense segments was $57.7$57 billion on September 30, 2018,March 31, 2019, up 6.9% from $53.9$56.5 billion on July 1, 2018, driven by a $3.9 billion contract awarded by the U.S. Navy for the construction of four Arleigh Burke-class (DDG-51) guided-missile destroyers. Additionally, theDecember 31, 2018. The Information Technology, Mission Systems and MissionMarine Systems segments each achieved a book-to-bill ratio of 1-to-1 or greater than 1-to-1 in the thirdfirst quarter of 2018.2019. Estimated potential contract value in our defense segments was $32.5$31.9 billion on September 30, 2018, up 6.8%March 31, 2019. We received the following significant contract awards during the first quarter of 2019:
Combat Systems:
$225 from $30.4 billionthe U.S. Army for inventory management and support services for the Stryker fleet.
$160 from the Army for various munitions.
$145 from the Army for systems technical support on July 1, 2018, driven by a multibillion-dollarthe Abrams and Stryker programs.
$65 from the Army for design and prototype development of the Abrams tank System Enhancement Package Version 4 (SEPv4).
Information Technology:
An IDIQ contract awarded byfrom the U.S. Navy to provide cyber mission engineering support services. The program has a maximum potential contract value of $900 among ten awardees.
$580 for several key contracts to provide services to classified customers.
An IDIQ contract from the Defense Threat Reduction Agency (DTRA) to provide IT support services and capabilities. The program has a maximum potential contract value of $535 among five awardees.
An IDIQ contract from the DoD to provide cybersecurity, planning, execution and analysis services to the Joint Chiefs of Staff’s J7 training activities. The program has a maximum potential contract value of $500 among six awardees.
A blanket purchase agreement of $490 from the Defense Information Systems Agency (DISA) to operate, maintain, deploy and manage Pentagon and regional government-furnished network infrastructures.
$125 to provide turnkey training and simulation services for the Army’s Aviation Center of Excellence in Fort Rucker, Alabama.
$60 from the U.S. Air Force Central Command for communications technical support services in Asia.
$55 from the National Geospatial-Intelligence Agency (NGA) for IT lifecycle management and virtual desktop services.


$50 from the U.S. Department of Veterans Affairs to provide managed services to improve service desk interactions with end users.
Mission Systems:
$115 from the Army for computing and communications equipment under the Common Hardware Systems-5 (CHS-5) program. In addition to these programs, we received the following significant contract awards during the third quarter of 2018:
Combat Systems:
$160 from the U.S. Army for munitions and ordnance, including Hydra-70 rockets.
$85 from the U.S. Air Force for various rounds of medium-caliber ammunition.
$55 to integrate a Mission Equipment Package onto Stryker vehicles to provide short range air defense capabilities.
$30 from the U.S. Defense Logistics Agency to provide spare parts for Abrams main battle tanks.
$30 to produce Patriot Advanced Capability-3 (PAC-3) guided-missile system motor cases.
Information Technology:
$330 from the U.S. Census Bureau to provide contact-center systems and operations support for the 2020 Census Questionnaire Assistance program.
$210 from the Centers for Medicare & Medicaid Services for benefits recovery services, cloud hosting and IT support.
$100 to provide logistics, sustainmentdevelopment and maintenance support services for the U.S. Army’s worldwide C4ISR systems.
$95 from the U.S. Department of State to provide visa application and issuance support services to U.S. embassies and consulates worldwide.
$95 from the U.S. Naval Air Warfare Center for design, development and support of shipboard and airborne platforms.
$90 from the U.S. Federal EmergencyConsolidated Project Management Agency (FEMA) for contact-center operations and support services.



Mission Systems:
$170 from the U.S. Navy for combat and seaframe control systems on Independence-variant Littoral Combat Ships (LCS).
$150 for additional equipment to support the U.S. Army’s mobile communications network.
$100 from the Army for computing and communications equipment under the Common Hardware Systems-4 (CHS-4) program.
$75 from the Canadian Department of National Defence to modernize and provide in-service support for the underwater warfare sensor suite installed on Halifax-class frigates.
$75 to rebuild and repair MK6 missile guidance systems and produce MK6 circuit card assemblies for the Navy.
Marine Systems:
$580 from the Navy for surface ship maintenance and modernization work.
$480 from the Navy to continue design and development work in support of the Columbia-class submarine(CPM) Next program.
$55 from the Navy for the procurement and managementproduction of spare parts and equipmentDigital Modular Radios (DMR).
$45 from the Army for the Zumwalt-class (DDG-1000)production of the Prophet Enhanced Tactical Signals Intelligence System.
$40 for additional equipment to support the Army’s mobile communications network.
Marine Systems:
$2 billion from the Navy for long-lead materials for Block V Virginia-class submarines.
$300 from the Navy to provide maintenance and repair services for the Arleigh Burke-class (DDG-51) guided-missile destroyer, Wasp-class amphibious assault ship and Nimitz-class aircraft carrier programs.
$210 from the Navy for planning, scheduling and technical support for maintenance activities on the USS South Dakota, a Virginia-class submarine.
$70 from the Navy for planning yard services for the DDG-51 destroyer program.
$40 from the Navy to provide non-nuclear maintenance and repair services for submarines located at the Naval Submarine Support Facility in New London, Connecticut.

FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES
We ended the thirdfirst quarter of 20182019 with a cash balance of $1 billion,$673, down $2 billion$290 from the end of 2017.2018. Our net debt position, defined as debt less cash and equivalents and marketable securities, was $12.1$12.9 billion at the end of the thirdfirst quarter of 20182019 compared with $1$11.5 billion at the end of 2017. The increase is due primarily to financing the CSRA acquisition.2018.
We expect to continue to generate funds in excess of our short- and long-term liquidity needs. We believe we have adequate funds on hand and sufficient borrowing capacity to execute our financial and operating strategy. The following is a discussion of our major operating, investing and financing activities in the first ninethree months of 20182019 and 2017,2018, as classified on the unaudited Consolidated Statement of Cash Flows in Part I, Item 1.
OPERATING ACTIVITIES
We generated cash fromCash used for operating activities of $1.1 billionwas $795 in the first ninethree months of 20182019 compared with $1.9 billionto $496 in the same period in 2017.2018. The primary driver of cash inflows in both periods was net earnings. However, cash flows in both periods were affected negatively by growth in operating working capital, particularly the timing of payments on the large international armored vehicle contracts in our Combat Systems segment, and the new G500 and G600 aircraft programs in our Aerospace segment. Additionally, cash flows in the first nine months of 2018 reflected a discretionary pension plan contribution of $255.


INVESTING ACTIVITIES
Cash used for investing activities was $10.3 billion$187 in the first ninethree months of 20182019 compared with $585$105 in the same period in 2017.2018. Our investing activities include cash paid for capital expenditures and business acquisitions; proceeds from asset sales; and purchases, sales and maturities of marketable securities; and proceeds from asset sales. In the first nine monthssecurities. The primary use of 2018, we acquired three businessescash for an aggregate of $10 billion, including $9.7 billion for CSRA. In the first nine months of 2017, we acquired three businesses for an aggregate of $364.our investing activities in both periods was capital expenditures. Capital expenditures increased to $447were $181 in the first ninethree months of 20182019 compared with $273$104 in the same period in 20172018 to support growth at Gulfstream and our shipyards. We expect capital expenditures to be slightly above 2%approximately 3% of revenue in 2018.


2019.
FINANCING ACTIVITIES
Cash provided by financing activities was $7.3 billion$697 in the first ninethree months of 20182019 compared with cash used forprovided by financing activities of $881$2 billion in the same period in 2017.2018. Net cash from financing activities includes proceeds received from debt and commercial paper issuances and employee stock option exercises. Our financing activities also include repurchases of common stock, payment of dividends and debt repayments.
On March 1, 2017,December 5, 2018, our board of directors authorized management to repurchase up to 10 million additional shares of the company’s outstanding stock. In the first ninethree months of 2018,2019, we repurchased 2.50.5 million of our outstanding shares for $522.$86. On September 30, 2018, 5.1March 31, 2019, 7 million shares remained authorized by our board of directors for repurchase, approximately 2% of our total shares outstanding. We repurchased 5.91.2 million shares for $1.1 billion$257 in the first ninethree months of 2017.2018.
On March 7, 2018,6, 2019, our board of directors declared an increased quarterly dividend of $0.93$1.02 per share, the 21st22nd consecutive annual increase. Previously, the board had increased the quarterly dividend to $0.84$0.93 per share in March 2017.2018. Cash dividends paid were $801$268 in the first ninethree months of 20182019 compared with $735$250 in the same period in 2017.2018.
In the first nine monthsquarter of 2018, we issued $7.5$2.5 billion of fixed- and floating-rate notes to financecommercial paper in anticipation of the acquisition of CSRA. Additionally, in the first nine months of 2018, we paid $450 to satisfy obligations under CSRA’s accounts receivable purchase agreement. In the the first nine months of 2017, weCSRA, which was completed on April 3, 2018.
We issued $1 billion of fixed-rate notes that were used to repay $900 of fixed-rate notes that maturedcommercial paper in the fourthfirst quarter of 2017 and for general corporate purposes.
On September 30, 2018, we had $1.72019, leaving $1.9 billion of commercial paper outstanding.outstanding on March 31, 2019. We have $5 billion in committed bank credit facilities for general corporate purposes and working capital needs and to support our commercial paper issuances. We also have an effective shelf registration on file with the Securities and Exchange Commission that allows us to access the debt markets.
For additional information regarding the financing of the CSRA acquisition, our debt obligations, including interest rates, and our credit facilities, see Note I to the unaudited Consolidated Financial Statements in Part I, Item 1.
NON-GAAP FINANCIAL MEASURE – FREE CASH FLOW
We emphasize the efficient conversion of net earnings into cash and the deployment of that cash to maximize shareholder returns. As described below, we use free cash flow from operations to measure our performance in these areas. While we believe this metric provides useful information, it is not a defined operating measure under U.S. generally accepted accounting principles (GAAP), and there are limitations associated with its use. Our calculation of this metric may not be completely comparable to similarly titled measures of other companies due to potential differences in the method of calculation. As a result, the use of this metric should not be considered in isolation from, or as a substitute for, other GAAP measures.
We define free cash flow from operations as net cash provided by operating activities less capital expenditures. We believe free cash flow from operations is a useful measure for investors because it portrays our ability to generate cash from our businesses for purposes such as repaying maturing debt, funding business acquisitions, repurchasing our common stock and paying dividends. We use free cash flow from


operations to assess the quality of our earnings and as a key performance measure in evaluating management. The following table reconciles the free cash flow from operations with net cash provided by operating activities, as classified on the unaudited Consolidated Statement of Cash Flows in Part I, Item 1:


Nine Months EndedSeptember 30, 2018 
October 1,
2017
Net cash provided by operating activities$1,081
 $1,882
Three Months EndedMarch 31, 2019 April 1, 2018
Net cash used by operating activities$(795) $(496)
Capital expenditures(447) (273)(181) (104)
Free cash flow from operations$634
 $1,609
$(976) $(600)
Cash flows as a percentage of earnings from continuing operations:      
Net cash provided by operating activities44% 83%
Net cash used by operating activities(107)% (62)%
Free cash flow from operations26% 71%(131)% (75)%

ADDITIONAL FINANCIAL INFORMATION
ENVIRONMENTAL MATTERS AND OTHER CONTINGENCIES
For a discussion of environmental matters and other contingencies, see Note M to the unaudited Consolidated Financial Statements in Part I, Item 1. Except as otherwise noted in Note M, we do not expect our aggregate liability with respect to these matters to have a material impact on our results of operations, financial condition or cash flows.
APPLICATION OF CRITICAL ACCOUNTING POLICIES
Management’s Discussion and Analysis of Financial Condition and Results of Operations is based on the unaudited Consolidated Financial Statements, which have been prepared in accordance with U.S. GAAP. The preparation of financial statements in accordance with GAAP requires that we make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period. We employ judgment in making our estimates, but they are based on historical experience, currently available information and various other assumptions that we believe to be reasonable under the circumstances. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily available from other sources. Actual results may differ from these estimates.
Revenue. Accounting for long-term contracts and programs involves the use of various techniques to estimate total contract revenue and costs. Contract estimates are based on various assumptions to project the outcome of future events that often span several years. We review and update our contract-related estimates regularly. We recognize adjustments in estimated profit on contracts under the cumulative catch-up method. Under this method, the impact of the adjustment on profit recorded to date on a contract is recognized in the period the adjustment is identified. The aggregate impact of adjustments in contract estimates increased our operating earnings (and diluted earnings per share) by $103$68 ($0.27)0.18) and $283$97 ($0.75)0.25) for the three- and nine-monththree-month periods ended September 30,March 31, 2019, and April 1, 2018, and $103 ($0.22) and $274 ($0.58) for the three- and nine-month periods ended October 1, 2017, respectively. No adjustment on any one contract was material to the unaudited Consolidated Financial Statements for the three- and nine-monththree-month periods ended September 30, 2018,March 31, 2019, or OctoberApril 1, 2017.2018.
Leases. Effective January 1, 2019, we adopted ASC Topic 842, Leases. ASC Topic 842 requires the recognition of lease rights and obligations as assets and liabilities on the balance sheet. Previously, lessees


were not required to recognize on the balance sheet assets and liabilities arising from operating leases. As we elected the cumulative-effect adoption method, prior-period information has not been restated. The most significant effects of the standard on our Consolidated Financial Statements are (1) the recognition of new right-of-use assets and lease liabilities on our Consolidated Balance Sheet for our operating leases, and (2) significant new disclosures about our leasing activities (see Note N to the unaudited Consolidated Financial Statements in Part 1, Item1). On January 1, 2019, we recognized operating lease liabilities and right-of-use assets of $1.4 billion based on the present value of the remaining lease payments over the lease term. The adoption did not result in a cumulative-effect adjustment to retained earnings. The new standard did not have a material impact on our results of operations or cash flows.
CSRA Acquisition. We are required to estimate the fair value of the assets acquired and liabilities assumed in business combinations on the acquisition date, including identified intangible assets. The amount of purchase price paid in excess of the net assets acquired is recorded as goodwill. The fair values are estimated in accordance with the principles of ASC Topic 820, Fair Value Measurement, which defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction


between market participants. The fair values of the net assets acquired are determined primarily using Level 3 inputs (inputs that are unobservable to the market place participant).
The most significant of the fair value estimates is related to long-lived assets, specifically intangible assets subject to amortization. We have preliminarily valued $2.1 billion of acquired intangible assets in connection with the CSRA acquisition. This amount was determined based primarily on CSRA’s projected cash flows. The projected cash flows include various assumptions, including the timing of work embedded in backlog, success in securing future business, profitability of work, and the appropriate risk-adjusted interest rate used to discount the projected cash flows.
We are in various phases of valuing the net tangible and intangible assets acquired and liabilities assumed, and our estimate of these values was still preliminary on September 30, 2018. Therefore, these provisional amounts are subject to change as we complete the valuations throughout the measurement period, which will extend throughout 2018.
Reorganization of Operating Segments and Composition of Reporting Units. Concurrent with the acquisition of CSRA, we reorganized our Information Systems and Technology operating segment in accordance with the nature of the segment’s products and services into the Information Technology and Mission Systems segments. Prior-period segment information was restated for this change.
This reorganization similarly changed the composition of our reporting units. Accordingly, goodwill of the Information Systems and Technology reporting unit was reassigned to the Information Technology and Mission Systems reporting units using a relative fair value allocation approach as of the date of the reorganization. The estimated fair value of our Information Systems and Technology reporting unit (and its individual components) was well in excess of its respective carrying value when we completed the required annual goodwill impairment test as of December 31, 2017. There have been no material changes in the estimated fair values or carrying values of our Information Technology and Mission Systems reporting units since the December 31, 2017, impairment test date excluding the acquisition of CSRA. As the CSRA assets acquired and liabilities assumed have been recorded at their estimated acquisition date fair value, the outcome of our qualitative assessment as of the date of the reorganization is that there is a less than 50% likelihood that the fair values of the Information Technology and Mission Systems reporting units are less than the reporting units’ respective carrying values.
Other. Other significant estimates include those related to goodwill and intangible assets, income taxes, pension and other post-retirement benefits, workers’ compensation, warranty obligations, and litigation and other contingencies. We believe our judgment is applied consistently and produces financial information that fairly depicts our results of operations for all periods presented. For a full discussion of our critical accounting policies, see our Annual Report on Form 10-K for the year ended December 31, 2017.2018. For a discussion of new accounting standards that have been issued by the FASB but are not yet effective, see Note A to the unaudited Consolidated Financial Statements in Part I,II, Item 1.8 in our Annual Report on Form 10-K for the year ended December 31, 2018. These standards are not expected to have a material impact on our results of operations or cash flows.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
There have been no material changes with respect to this item from the disclosure included in our Annual Report on Form 10-K for the year ended December 31, 2017.2018.



ITEM 4. CONTROLS AND PROCEDURES
Our management, under the supervision and with the participation of the Chief Executive Officer and the Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of September 30, 2018, (as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended). as of March 31, 2019. Based on this evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, on September 30, 2018,March 31, 2019, our disclosure controls and procedures were effective. As permitted by SEC guidance,
In conjunction with the scopeadoption of this evaluation did not include theASC Topic 842, effective January 1, 2019, we implemented a lease accounting system and related processes and internal controls, over financial reportingwhich represent a material change to a component of CSRA Inc., which we acquired on April 3, 2018. See Note B to the unaudited Consolidated Financial Statements in Part I, Item 1, for further discussion of the acquisition. CSRA represented approximately 15% of our consolidated revenue in the third quarter of 2018 and 20% of our consolidated assets on September 30, 2018.
Other than changes arising from ongoing integration activities associated with the CSRA acquisition, there were no changes in our internal control over financial reportingreporting. There were no other changes that occurred during the quarter ended September 30, 2018,March 31, 2019, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
The certifications of the company’s Chief Executive Officer and Chief Financial Officer required under Section 302 of the Sarbanes-Oxley Act have been filed as Exhibits 31.1 and 31.2 to this report.

FORWARD-LOOKING STATEMENTS
This quarterly report on Form 10-Q contains forward-looking statements that are based on management’s expectations, estimates, projections and assumptions. Words such as “expects,” “anticipates,” “plans,” “believes,” “scheduled,” “outlook,” “estimates,” “should” and variations of these words and similar expressions are intended to identify forward-looking statements. Examples include projections of revenue, earnings, operating margin, segment performance, cash flows, contract awards, aircraft production, deliveries and backlog. In making these statements we rely on assumptions and analyses based on our experience and perception of historical trends, current conditions and expected future developments as well as other factors we consider appropriate under the circumstances. We believe our estimates and judgments are reasonable based on information available to us at the time. Forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. These statements are not guarantees of future performance and involve risks and uncertainties that are difficult to predict. Therefore, actual future results and trends may differ materially from what is forecast in forward-looking statements due to a variety of factors, including, without limitation, the risk factors discussed in Item 1A of our Annual Report on Form 10-K.10-K for the year ended December 31, 2018. These factors include:


general U.S. and international political and economic conditions;
decreases in U.S. government defense spending or changing priorities within the defense budget;
termination or restructuring of government contracts due to unilateral government action;
differences in anticipated and actual program performance, including the ability to perform under long-term, fixed-price contracts within estimated costs, and performance issues with key suppliers and subcontractors;
expected recovery on contract claims and requests for equitable adjustment;
changing customer demand or preferences for business aircraft, including the effects of economic conditions on the business-aircraft market;
potential for changing prices for energy and raw materials; and
the status or outcome of legal and/or regulatory proceedings.proceedings;
potential effects of audits and reviews by government agencies of our government contract performance, compliance and internal control systems and policies;
risks and uncertainties relating to our acquisitions and joint ventures; and
potential for cybersecurity events and other disruptions.
All forward-looking statements speak only as of the date of this report or, in the case of any document incorporated by reference, the date of that document. All subsequent written and oral forward-looking statements attributable to General Dynamics or any person acting on our behalf are qualified by the cautionary statements in this section. We do not undertake any obligation to update or publicly release any revisions to forward-looking statements to reflect events, circumstances or changes in expectations after the date of this report. These factors may be revised or supplemented in subsequent reports on SEC Forms 10-Q and 8-K.

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS
For information relating to legal proceedings, see Note M to the unaudited Consolidated Financial Statements in Part I, Item 1.

ITEM 1A. RISK FACTORS
There have been no material changes with respect to this item from the disclosure included in our Annual Report on Form 10-K for the year ended December 31, 20172018.



ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
The following table provides information about our third-quarterfirst-quarter purchases of equity securities that are registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended:
Period Total Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Program Maximum Number of Shares That May Yet Be Purchased Under the Program
Pursuant to Share Buyback Program    
7/2/18-7/29/18 450,000
 $193.05
 450,000
 5,060,168
7/30/18-8/26/18 
 
 
 5,060,168
8/27/18-9/30/18 
 
 
 5,060,168
         
Shares Delivered or Withheld Pursuant to Restricted Stock Vesting*    
7/2/18-7/29/18 1,677
 187.16
    
7/30/18-8/26/18 
 
    
8/27/18-9/30/18 287
 193.35
    
  451,964
 $193.03
    
Period Total Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Program Maximum Number of Shares That May Yet Be Purchased Under the Program
Pursuant to Share Buyback Program    
1/1/19-1/27/19 425,000
 $162.87
 425,000
 7,055,168
1/28/19-2/24/19 100,000
 171.52
 100,000
 6,955,168
2/25/19-3/31/19 
 
 
 6,955,168
         
Shares Delivered or Withheld Pursuant to Restricted Stock Vesting*    
1/1/19-1/27/19 79,377
 155.64
    
1/28/19-2/24/19 3,660
 170.31
    
2/25/19-3/31/19 118,712
 167.57
    
  726,749
 $164.08
    
* Represents shares withheld by, or delivered to, us pursuant to provisions in agreements with recipients of restricted stock granted under our equity compensation plans that allow us to withhold, or the recipient to deliver to us, the number of shares with a fair value equal to the statutory tax withholding due upon vesting of the restricted shares.
We did not make any unregistered sales of equity securities in the thirdfirst quarter of 2018.2019.

ITEM 6. EXHIBITS
10.1
31.1
31.2
32.1
32.2
101Interactive Data File*


* Filed or furnished herewith.


SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 
GENERAL DYNAMICS CORPORATION

 by
mosssignature20190331.gif
  William A. Moss
  Vice President and Controller
  (Authorized Officer and Chief Accounting Officer)
Dated: OctoberApril 24, 20182019  


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