Northrop Grumman (NOC) 10-Q29 Jul 212021 Q2 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information Document - shares	6 Months Ended
Document and Entity Information Document - shares	Jun. 30, 2021	Jul. 26, 2021
Document and Entity Information [Abstract]
Entity Current Reporting Status	Yes
Document Type	10-Q
Document Fiscal Period Focus	Q2
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Amendment Flag	false
Document Fiscal Year Focus	2021
Current Fiscal Year End Date	--12-31
Entity File Number	1-16411
Entity Registrant Name	NORTHROP GRUMMAN CORP /DE/
Entity Central Index Key	0001133421
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	80-0640649
Entity Address, Line 1	2980 Fairview Park Drive
Entity Address, City Or Town	Falls Church,
Entity Address, State Or Province	VA
Entity Address, Postal ZIP Code	22042
City Area Code	703
Local Phone Number	280-2900
Title of 12(b) Security	Common Stock
Trading Symbol	NOC
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		160,109,103

Condensed Consolidated Statemen

Condensed Consolidated Statements of Earnings and Comprehensive Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Sales	$ 9,151	$ 8,884	$ 18,308	$ 17,504
Operating costs and expenses
General and administrative expenses	999	832	1,897	1,620
Total operating costs and expenses	8,107	7,890	16,422	15,576
Gain on sale of business	0	0	1,980	0
Operating income	1,044	994	3,866	1,928
Other (expense) income
Interest expense	(136)	(154)	(291)	(279)
Non-operating FAS pension benefit	367	303	734	605
Other, net	27	60	9	2
Earnings before income taxes	1,302	1,203	4,318	2,256
Federal and foreign income tax expense	265	198	1,086	383
Net earnings	$ 1,037	$ 1,005	$ 3,232	$ 1,873
Basic earnings per share
Basic earnings per share	$ 6.44	$ 6.02	$ 19.95	$ 11.20
Weighted-average common shares outstanding, in millions	161	166.9	162	167.3
Diluted earnings per share
Diluted earnings per share	$ 6.42	$ 6.01	$ 19.89	$ 11.16
Weighted-average diluted shares outstanding, in millions	161.5	167.3	162.5	167.9
Net earnings (from above)	$ 1,037	$ 1,005	$ 3,232	$ 1,873
Change in unamortized prior service credit, net of tax	(2)	(11)	(4)	(21)
Change in cumulative translation adjustment and other, net	1	10	0	1
Other comprehensive loss, net of tax	(1)	(1)	(4)	(20)
Comprehensive income	1,036	1,004	3,228	1,853
Product [Member]
Sales	7,193	6,482	14,215	12,658
Cost of Sales	5,620	5,127	11,310	10,079
Service [Member]
Sales	1,958	2,402	4,093	4,846
Cost of Sales	$ 1,488	$ 1,931	$ 3,215	$ 3,877

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 3,941	$ 4,907
Accounts receivable, net	1,910	1,501
Unbilled receivables, net	5,418	5,140
Inventoried costs, net	863	759
Prepaid expenses and other current assets	630	1,402
Assets of disposal group held for sale	0	1,635
Total current assets	12,762	15,344
Property, plant and equipment, net of accumulated depreciation of $6,640 for 2021 and $6,335 for 2020	7,164	7,071
Operating lease right-of-use assets	1,575	1,533
Goodwill	17,518	17,518
Intangible assets, net	680	783
Deferred tax assets	433	311
Other non-current assets	2,010	1,909
Total assets	42,142	44,469
Liabilities
Trade accounts payable	2,001	1,806
Accrued employee compensation	1,746	1,997
Advance payments and billings in excess of costs incurred	2,526	2,517
Other current liabilities	2,318	3,002
Liabilities of disposal group held for sale	0	258
Total current liabilities	8,591	9,580
Long-term debt, net of current portion of $6 for 2021 and $742 for 2020	12,764	14,261
Pension and other postretirement benefit plan liabilities	5,942	6,498
Operating lease liabilities	1,389	1,343
Other non-current liabilities	2,284	2,208
Total liabilities	30,970	33,890
Commitments and contingencies (Note 6)
Shareholders’ equity
Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $1 par value; 800,000,000 shares authorized; issued and outstanding: 2021—160,384,110 and 2020—166,717,179	160	167
Paid-in capital	0	58
Retained earnings	11,144	10,482
Accumulated other comprehensive loss	(132)	(128)
Total shareholders’ equity	11,172	10,579
Total liabilities and shareholders’ equity	$ 42,142	$ 44,469

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Accumulated Depreciation	$ 6,640	$ 6,335
Long-term Debt, Current Maturities	$ 6	$ 742
Preferred Stock, Par Value	$ 1	$ 1
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	800,000,000	800,000,000
Common Stock, Shares, Issued	160,384,110	166,717,179
Common Stock, Shares, Outstanding	160,384,110	166,717,179

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating activities
Net earnings	$ 3,232	$ 1,873
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	594	605
Stock-based compensation	40	36
Deferred income taxes	(121)	169
Gain on sale of business	(1,980)	0
Net periodic pension and OPB income	(546)	(408)
Pension and OPB contributions	(74)	(69)
Changes in assets and liabilities:
Accounts receivable, net	(453)	(663)
Unbilled receivables, net	(312)	(126)
Inventoried costs, net	(104)	(49)
Prepaid expenses and other assets	26	(16)
Accounts payable and other liabilities	(202)	(374)
Income taxes payable, net	881	330
Other operating activities, net	(19)	36
Net cash provided by operating activities	962	1,344
Investing activities
Divestiture of IT services business	3,400	0
Capital expenditures	(435)	(541)
Proceeds from sale of equipment to a customer	56	0
Other investing activities, net	1	2
Net cash provided by (used in) investing activities	3,022	(539)
Financing activities
Net proceeds from issuance of long-term debt	0	2,239
Payments of long-term debt	(2,236)	(27)
Payments to credit facilities	0	(13)
Common stock repurchases	(2,143)	(490)
Cash dividends paid	(486)	(469)
Payments of employee taxes withheld from share-based awards	(31)	(64)
Other financing activities, net	(54)	(48)
Net cash (used in) provided by financing activities	(4,950)	1,128
(Decrease) increase in cash and cash equivalents	(966)	1,933
Cash and cash equivalents, beginning of year	4,907	2,245
Cash and cash equivalents, end of period	$ 3,941	$ 4,178

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common stock	Paid-in capital	Retained earnings	Accumulated other comprehensive loss
Beginning of period at Dec. 31, 2019		$ 168	$ 0	$ 8,748	$ (97)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		(1)	0	(479)
Net earnings	$ 1,873			1,873
Dividends declared				(465)
Stock compensation			10	(36)
Other				11
Other comprehensive loss, net of tax	(20)				(20)
End of period at Jun. 30, 2020	$ 9,712	167	10	9,652	(117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share	$ 2.77
Beginning of period at Mar. 31, 2020		167	0	9,011	(116)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		0	0	(131)
Net earnings	$ 1,005			1,005
Dividends declared				(242)
Stock compensation			10	9
Other				0
Other comprehensive loss, net of tax	(1)				(1)
End of period at Jun. 30, 2020	9,712	167	10	9,652	(117)
Beginning of period at Dec. 31, 2020	10,579	167	58	10,482	(128)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		(7)	60	(2,089)
Net earnings	3,232			3,232
Dividends declared				(489)
Stock compensation			2	8
Other				0
Other comprehensive loss, net of tax	(4)				(4)
End of period at Jun. 30, 2021	$ 11,172	160	0	11,144	(132)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share	$ 3.02
Beginning of period at Mar. 31, 2021		161	8	10,487	(131)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		(1)	21	(134)
Net earnings	$ 1,037			1,037
Dividends declared				(254)
Stock compensation			13	8
Other				0
Other comprehensive loss, net of tax	(1)				(1)
End of period at Jun. 30, 2021	$ 11,172	$ 160	$ 0	$ 11,144	$ (132)

Basis of Presentation (Unaudite

Basis of Presentation (Unaudited)	6 Months Ended
Basis of Presentation (Unaudited)	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION Principles of Consolidation and Reporting These unaudited condensed consolidated financial statements (the “financial statements”) include the accounts of Northrop Grumman Corporation and its subsidiaries and joint ventures or other investments for which we consolidate the financial results (herein referred to as “Northrop Grumman,” the “company,” “we,” “us,” or “our”). Intercompany accounts, transactions and profits are eliminated in consolidation. Investments in equity securities and joint ventures where the company has significant influence, but not control, are accounted for using the equity method. Effective January 30, 2021 (the “Divestiture date”), we completed the previously announced sale of our IT and mission support services business (the “IT services divestiture”) for $3.4 billion in cash and recorded a pre-tax gain on sale of $2.0 billion. The IT and mission support services business was comprised of the majority of the Information Solutions and Services (IS&S) division of Defense Systems (excluding our Vinnell Arabia business); select cyber, intelligence and missions support programs, which were part of the Cyber and Intelligence Mission Solutions (CIMS) division of Mission Systems; and the Space Technical Services business unit of Space Systems. The assets and liabilities of the IT and mission support services business were classified as held for sale in the consolidated statement of financial position as of December 31, 2020. Operating results include sales and operating income for the IT and mission support services business prior to the Divestiture date. Sales for the IT and mission support services business were $162 million for the six months ended June 30, 2021 and $585 million and $1.1 billion for the three and six months ended June 30, 2020, respectively. Pre-tax profit was $20 million for the six months ended June 30, 2021, and $60 million and $111 million for the three and six months ended June 30, 2020, respectively. These financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP” or “FAS”) and in accordance with the rules of the Securities and Exchange Commission (SEC) for interim reporting. The financial statements include adjustments of a normal recurring nature considered necessary by management for a fair presentation of the company’s unaudited condensed consolidated financial position, results of operations and cash flows. The results reported in these financial statements are not necessarily indicative of results that may be expected for the entire year. These financial statements should be read in conjunction with the information contained in the company’s 2020 Annual Report on Form 10-K. During the first quarter of 2021, we changed the naming convention for our FAS/CAS pension accounts. The Net FAS (service)/CAS pension adjustment is now referred to as the FAS/CAS operating adjustment and the FAS (non-service) pension benefit is now referred to as the Non-operating FAS pension benefit. This change does not impact any current or previously reported amounts. During the second quarter of 2021, we changed the presentation of the retiree benefits components in the operating cash flow section of the Unaudited condensed consolidated statement of cash flows. Prior period amounts have been conformed to current period presentation and this change does not impact previously reported cash provided by operating activities. The quarterly information is labeled using a calendar convention; that is, first quarter is consistently labeled as ending on March 31, second quarter as ending on June 30 and third quarter as ending on September 30. It is the company’s long-standing practice to establish actual interim closing dates using a “fiscal” calendar, in which we close our books on a Friday near these quarter-end dates in order to normalize the potentially disruptive effects of quarterly closings on business processes. This practice is only used at interim periods within a reporting year. Accounting Estimates Preparation of the financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the financial statements, as well as the reported amounts of sales and expenses during the reporting period. Estimates have been prepared using the most current and best available information; however, actual results could differ materially from those estimates. Revenue Recognition The majority of our sales are derived from long-term contracts with the U.S. government for the development or production of goods, the provision of services, or a combination of both. We recognize revenue as control is transferred to the customer, either over time or at a point in time. For most of our contracts, control is effectively transferred during the period of performance, so we generally recognize revenue over time using the cost-to-cost method (cost incurred relative to total cost estimated at completion). The company believes this represents the most appropriate measurement towards satisfaction of our performance obligations. Revenue for contracts in which the control of goods produced does not transfer until delivery to the customer is recognized at a point in time (i.e., typically upon delivery). Contract Estimates Use of the cost-to-cost method requires us to make reasonably dependable estimates regarding the revenue and cost associated with the design, manufacture and delivery of our products and services. The company estimates profit on these contracts as the difference between total estimated sales and total estimated cost at completion and recognizes that profit as costs are incurred. Significant judgment is used to estimate total sales and cost at completion. Contract sales may include estimates of variable consideration, including cost or performance incentives (such as award and incentive fees), contract claims and requests for equitable adjustment (REAs). Variable consideration is included in total estimated sales to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. We estimate variable consideration as the most likely amount to which we expect to be entitled. We recognize changes in estimated contract sales or costs and the resulting changes in contract profit on a cumulative basis. Cumulative estimate-at-completion (EAC) adjustments represent the cumulative effect of the changes on current and prior periods; sales and operating margins in future periods are recognized as if the revised estimates had been used since contract inception. If it is determined that a loss is expected to result on an individual performance obligation, the entire amount of the estimable future loss, including an allocation of general and administrative expense, is charged against income in the period the loss is identified. The following table presents the effect of aggregate net EAC adjustments: Three Months Ended June 30 Six Months Ended June 30 $ in millions, except per share data 2021 2020 2021 2020 Revenue $ 160 $ 125 $ 362 $ 261 Operating income 154 112 344 236 Net earnings (1) 122 88 272 186 Diluted earnings per share (1) 0.76 0.53 1.67 1.11 (1) Based on a 21 percent statutory tax rate. EAC adjustments on a single performance obligation can have a material effect on the company’s financial statements. When such adjustments occur, we generally disclose the nature, underlying conditions and financial impact of the adjustments. No such adjustments were material to the financial statements during the three months ended June 30, 2021 and 2020. Backlog Backlog represents the future sales we expect to recognize on firm orders received by the company and is equivalent to the company’s remaining performance obligations at the end of each period. It comprises both funded backlog (firm orders for which funding is authorized and appropriated) and unfunded backlog. Unexercised contract options and indefinite delivery indefinite quantity (IDIQ) contracts are not included in backlog until the time an option or IDIQ task order is exercised or awarded. Company backlog as of June 30, 2021 was $76.6 billion. Of our June 30, 2021 backlog, we expect to recognize approximately 40 percent as revenue over the next 12 months and 60 percent as revenue over the next 24 months, with the remainder to be recognized thereafter. Contract Assets and Liabilities For each of the company’s contracts, the timing of revenue recognition, customer billings, and cash collections results in a net contract asset or liability at the end of each reporting period. Contract assets are equivalent to and reflected as Unbilled receivables in the unaudited condensed consolidated statements of financial position and are primarily related to long-term contracts where revenue recognized under the cost-to-cost method exceeds amounts billed to customers. Contract liabilities are equivalent to and reflected as Advance payments and billings in excess of costs incurred in the unaudited condensed consolidated statements of financial position. The amount of revenue recognized for the three and six months ended June 30, 2021 that was included in the December 31, 2020 contract liability balances was $482 million and $1.5 billion, respectively. The amount of revenue recognized for the three and six months ended June 30, 2020 that was included in the December 31, 2019 contract liability balance was $442 million and $1.2 billion, respectively. Disaggregation of Revenue See Note 9 for information regarding the company’s sales by customer type, contract type and geographic region for each of our segments. We believe those categories best depict how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Property, Plant, and Equipment During the fourth quarter of 2020, the company completed a sale of equipment to a customer on a restricted Aeronautics Systems program. The company received cash payments of $56 million related to the equipment sale during the second quarter of 2021, and included it in Proceeds from sale of equipment to a customer in the unaudited condensed consolidated statement of cash flows. Non-cash investing activities include capital expenditures incurred but not yet paid of $56 million and $99 million as of June 30, 2021 and 2020, respectively. Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss are as follows: $ in millions June 30, 2021 December 31, 2020 Unamortized prior service credit, net of tax expense of $2 for 2021 and $3 for 2020 $ 6 $ 10 Cumulative translation adjustment and other, net (138) (138) Total accumulated other comprehensive loss $ (132) $ (128) Related Party Transactions For all periods presented, the company had no material related party transactions. Accounting Standards Updates Accounting standards updates adopted and/or issued, but not effective until after June 30, 2021, are not expected to have a material effect on the company’s unaudited condensed consolidated financial position, annual results of operations and/or cash flows.

Earnings Per Share, Share Repur

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Unaudited)	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
EARNINGS PER SHARE, SHARE REPURCHASES AND DIVIDENDS ON COMMON STOCK	EARNINGS PER SHARE, SHARE REPURCHASES AND DIVIDENDS ON COMMON STOCK Basic Earnings Per Share We calculate basic earnings per share by dividing net earnings by the weighted-average number of shares of common stock outstanding during each period. Diluted Earnings Per Share Diluted earnings per share include the dilutive effect of awards granted to employees under stock-based compensation plans. The dilutive effect of these securities totaled 0.5 million shares for the three and six months ended June 30, 2021. The dilutive effect of these securities totaled 0.4 million shares and 0.6 million shares for the three and six months ended June 30, 2020, respectively. Share Repurchases On September 16, 2015, the company’s board of directors authorized a share repurchase program of up to $4.0 billion of the company’s common stock (the “2015 Repurchase Program”). On December 4, 2018, the company’s board of directors authorized a share repurchase program of up to an additional $3.0 billion in share repurchases of the company’s common stock (the “2018 Repurchase Program”). Repurchases under the 2015 Repurchase Program commenced in March 2016 and were completed in March 2020 at which time repurchases under the 2018 Repurchase Program commenced. As of June 30, 2021, repurchases under the 2018 Repurchase Program totaled $2.3 billion; $0.7 billion remained under this share repurchase authorization. By its terms, the 2018 Repurchase Program is set to expire when we have used all authorized funds for repurchases. On January 25, 2021, the company’s board of directors authorized a new share repurchase program of up to an additional $3.0 billion in share repurchases of the company’s common stock (the “2021 Repurchase Program”). By its terms, repurchases under the 2021 Repurchase Program will commence upon completion of the 2018 Repurchase Program and will expire when we have used all authorized funds for repurchases. During the first quarter of 2021, the company entered into an accelerated share repurchase (ASR) agreement with Goldman Sachs & Co. LLC (Goldman Sachs) to repurchase $2.0 billion of the company’s common stock as part of the 2018 Repurchase Program. Under the agreement, we made a payment of $2.0 billion to Goldman Sachs and received an initial delivery of 5.9 million shares valued at $1.7 billion that were immediately canceled by the company. The remaining balance of $300 million was settled on June 1, 2021 with a final delivery of 0.2 million shares from Goldman Sachs. The final average purchase price was $327.29 per share. Share repurchases take place from time to time, subject to market conditions and management’s discretion, in the open market or in privately negotiated transactions. The company retires its common stock upon repurchase and, in the periods presented, has not made any purchases of common stock other than in connection with these publicly announced repurchase programs. The table below summarizes the company’s share repurchases to date under the authorizations described above: Shares Repurchased Repurchase Program Amount Total Average (1) Date Completed Six Months Ended June 30 2021 2020 September 16, 2015 $ 4,000 15.4 $ 260.33 March 2020 — 0.9 December 4, 2018 $ 3,000 7.0 329.81 6.5 0.5 January 25, 2021 $ 3,000 — — — — (1) Includes commissions paid. Dividends on Common Stock In May 2021, the company increased the quarterly common stock dividend 8 percent to $1.57 per share from the previous amount of $1.45 per share.

Income Taxes (Unaudited)

Income Taxes (Unaudited)	6 Months Ended
Income Taxes (Unaudited)	Jun. 30, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Three Months Ended June 30 Six Months Ended June 30 $ in millions 2021 2020 2021 2020 Federal and foreign income tax expense $ 265 $ 198 $ 1,086 $ 383 Effective income tax rate 20.4 % 16.5 % 25.2 % 17.0 % Current Quarter The second quarter 2021 effective tax rate (ETR) increased to 20.4 percent from 16.5 percent in the prior year period primarily due to a change made in tax revenue recognition on certain long-term contracts, which increased taxable income in years prior to the 2017 Tax Cuts and Jobs Act at a rate above the current statutory rate. Both periods include $48 million of research credits. Year to Date The year to date 2021 ETR increased to 25.2 percent from 17.0 percent in the prior period primarily due to federal income taxes resulting from the IT services divestiture, including $250 million of income tax expense related to $1.2 billion of nondeductible goodwill in the divested business. The company’s year to date 2021 ETR also includes additional tax expense related to the tax revenue recognition change discussed above as well as benefits of $99 million for research credits as compared to $90 million in the prior year period. Taxes receivable are included in Prepaid expenses and other current assets in the unaudited condensed consolidated statements of financial position. We had no taxes receivable as of June 30, 2021 and $792 million as of December 31, 2020. The company has recorded unrecognized tax benefits related to our methods of accounting associated with the timing of revenue recognition and related costs, and the 2017 Tax Cuts and Jobs Act. It is reasonably possible that within the next 12 months our unrecognized tax benefits related to the final revenue recognition regulations issued in December 2020 under IRC Section 451(b) and future regulatory interpretations of existing tax laws may change. At this time, we cannot reasonably estimate these changes. We file income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. The Northrop Grumman 2014-2018 federal tax returns and refund claims related to its 2007-2016 federal tax returns are

Fair Value of Financial Instrum

Fair Value of Financial Instruments (Unaudited)	6 Months Ended
Fair Value of Financial Instruments (Unaudited)	Jun. 30, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE OF FINANCIAL INSTRUMENTS	FAIR VALUE OF FINANCIAL INSTRUMENTS The company holds a portfolio of marketable securities to partially fund non-qualified employee benefit plans. A portion of these securities are held in common/collective trust funds and are measured at fair value using net asset value (NAV) per share as a practical expedient; and therefore are not required to be categorized in the fair value hierarchy table below. Marketable securities are included in Other non-current assets in the unaudited condensed consolidated statements of financial position. The company’s derivative portfolio consists primarily of foreign currency forward contracts. Where model-derived valuations are appropriate, the company utilizes the income approach to determine the fair value and uses the applicable London Interbank Offered Rate (LIBOR) swap rates. The following table presents the financial assets and liabilities the company records at fair value on a recurring basis identified by the level of inputs used to determine fair value: June 30, 2021 December 31, 2020 $ in millions Level 1 Level 2 Total Level 1 Level 2 Total Financial Assets Marketable securities $ 404 $ — $ 404 $ 377 $ 1 $ 378 Marketable securities valued using NAV 17 18 Total marketable securities 404 — 421 377 1 396 Derivatives — 1 1 — — — The notional value of the company’s foreign currency forward contracts at June 30, 2021 and December 31, 2020 was $138 million and $133 million, respectively. At June 30, 2021 and December 31, 2020, no portion of the notional value was designated as a cash flow hedge. The derivative fair values and related unrealized gains/losses at June 30, 2021 and December 31, 2020 were not material. There were no transfers of financial instruments into or out of Level 3 of the fair value hierarchy during the six months ended June 30, 2021. The carrying value of cash and cash equivalents and commercial paper approximates fair value. Long-term Debt The estimated fair value of long-term debt was $15.3 billion and $18.2 billion as of June 30, 2021 and December 31, 2020, respectively. We calculated the fair value of long-term debt using Level 2 inputs, based on interest rates available for debt with terms and maturities similar to the company’s existing debt arrangements. The current portion of long-term debt is recorded in Other current liabilities in the unaudited condensed consolidated statements of financial position. Repayments of Senior Notes In March 2021, the company repaid $700 million of 3.50 percent unsecured notes upon maturity. In March 2021, the company redeemed $1.5 billion of 2.55 percent unsecured notes due October 2022. The company recorded a pre-tax charge of $54 million principally related to the premium paid on the redemption, which was recorded in Other, net in the unaudited condensed consolidated statements of earnings and comprehensive income.

Investigations, Claims and Liti

Investigations, Claims and Litigation (Unaudited)	6 Months Ended
Investigations, Claims and Litigation (Unaudited)	Jun. 30, 2021
Disclosure Text Block Supplement [Abstract]
INVESTIGATIONS, CLAIMS AND LITIGATION	INVESTIGATIONS, CLAIMS AND LITIGATION On May 4, 2012, the company commenced an action, Northrop Grumman Systems Corp. v. United States , in the U.S. Court of Federal Claims. This lawsuit relates to an approximately $875 million firm fixed-price contract awarded to the company in 2007 by the U.S. Postal Service (USPS) for the construction and delivery of flats sequencing systems (FSS) as part of the postal automation program. The FSS were delivered. The company’s lawsuit seeks approximately $63 million for unpaid portions of the contract price, and approximately $115 million based on the company’s assertions that, through various acts and omissions over the life of the contract, the USPS adversely affected the cost and schedule of performance and materially altered the company’s obligations under the contract. The United States responded to the company’s complaint with an answer, denying most of the company’s claims, and counterclaims seeking approximately $410 million, less certain amounts outstanding under the contract. In the course of the litigation, the United States subsequently amended its counterclaim, reducing it to seek approximately $193 million. The principal counterclaim alleges that the company delayed its performance and caused damages to the USPS because USPS did not realize certain costs savings as early as it had expected. On February 3, 2020, after extensive discovery and motions practice, the parties commenced what was expected to be a seven-week trial. The first four weeks of trial concluded, but the court postponed the remaining estimated three weeks as a result of COVID-19-related concerns. After additional COVID-19-related interruptions, trial concluded on March 5, 2021 and the court scheduled post-trial briefing. Although the ultimate outcome of this matter, including any possible loss, cannot be predicted or reasonably estimated at this time, the company intends vigorously to pursue and defend the matter. We are engaged in remediation activities relating to environmental conditions allegedly resulting from historic operations at the former United States Navy and Grumman facilities in Bethpage, New York. For over 20 years, we have worked closely with the United States Navy, the United States Environmental Protection Agency, the New York State Department of Environmental Conservation (NYSDEC), the New York State Department of Health and other federal, state and local governmental authorities, to address legacy environmental conditions in Bethpage. In December 2019, the State of New York issued an Amended Record of Decision seeking to impose additional remedial requirements beyond measures the company previously had been taking; the State also communicated that it was assessing potential natural resource damages. In December 2020, the parties reached a tentative agreement regarding the steps the company will take to implement the State’s Amended Record of Decision and to resolve certain potential other claims, including for natural resource damages. The State of New York is preparing to file a new consent decree reflecting the agreement and to seek court approval. We have incurred, and expect to continue to incur, as included in Note 6, substantial remediation costs related to the legacy Bethpage environmental conditions. Applicable remediation standards and other requirements to which we are subject may continue to change, our costs may increase materially and those costs may not be fully recoverable. In addition, we are a party to various, and expect to become a party to additional, legal proceedings and disputes related to remediation, environmental impacts, costs, and the allowability of costs we incur, including with federal and state entities (including the Navy, Defense Contract Management Agency, the State, local municipalities and water districts) and insurance carriers, as well as class action and individual plaintiffs alleging personal injury and property damage and seeking both monetary and non-monetary relief. These Bethpage matters could result in additional costs, fines, penalties, sanctions, compensatory or other damages, determinations on allocation, allowability and coverage, and non-monetary relief. We cannot at this time predict or reasonably estimate the potential cumulative outcomes or ranges of possible liability of these aggregate Bethpage matters.

Commitments and Contingencies (

Commitments and Contingencies (Unaudited)	6 Months Ended
Commitments and Contingencies (Unaudited)	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES U.S. Government Cost Claims and Contingencies From time to time, the company is advised of claims by the U.S. government concerning certain potential disallowed costs, plus, at times, penalties and interest. When such findings are presented, the company and U.S. government representatives engage in discussions to enable the company to evaluate the merits of these claims, as well as to assess the amounts being claimed. Where appropriate, provisions are made to reflect the company’s estimated exposure for such potential disallowed costs. Such provisions are reviewed periodically using the most recent information available. The company believes it has adequately reserved for disputed amounts that are probable and reasonably estimable, and that the outcome of any such matters would not have a material adverse effect on its unaudited condensed consolidated financial position as of June 30, 2021, or its annual results of operations and/or cash flows. The U.S. government has raised questions about an interest rate assumption used by the company to determine our CAS pension expense. On June 1, 2020, the government provided written notice that the assumptions the company used during the period 2013-2019 were potentially noncompliant with CAS. We submitted a formal response on July 31, 2020, which we believe demonstrates the appropriateness of the assumptions used. On November 24, 2020, the government replied to the company’s response, disagreeing with our position and requesting additional input, which we provided on February 22, 2021. We are engaging further with the government. The sensitivity to changes in interest rate assumptions makes it reasonably possible the outcome of this matter could have a material adverse effect on our financial position, results of operations and/or cash flows, although we are not currently able to estimate a range of any potential loss. Environmental Matters The table below summarizes the amount accrued for environmental remediation costs, management’s estimate of the amount of reasonably possible future costs in excess of accrued costs and the deferred costs expected to be recoverable through overhead charges on U.S. government contracts as of June 30, 2021 and December 31, 2020: $ in millions Accrued Costs (1)(2) Reasonably Possible Future Costs in Excess of Accrued Costs (2) Deferred Costs (3) June 30, 2021 $ 611 $ 364 $ 525 December 31, 2020 614 346 529 (1) As of June 30, 2021, $250 million is recorded in Other current liabilities and $361 million is recorded in Other non-current liabilities. (2) Estimated remediation costs are not discounted to present value. The reasonably possible future costs in excess of accrued costs do not take into consideration amounts expected to be recoverable through overhead charges on U.S. government contracts. (3) As of June 30, 2021, $221 million is deferred in Prepaid expenses and other current assets and $304 million is deferred in Other non-current assets. These amounts are evaluated for recoverability on a routine basis. Although management cannot predict whether new information gained as our environmental remediation projects progress, or as changes in facts and circumstances occur, will materially affect the estimated liability accrued, except with respect to Bethpage, we do not anticipate that future remediation expenditures associated with our currently identified projects will have a material adverse effect on the company’s unaudited condensed consolidated financial position as of June 30, 2021, or its annual results of operations and/or cash flows. With respect to Bethpage, as discussed in Note 5, in December 2019, the State of New York issued an Amended Record of Decision, seeking to impose additional remedial requirements beyond those the company previously had been taking; the State also communicated that it was assessing potential natural resource damages. In December 2020, the parties reached a tentative agreement regarding the steps the company will take to implement the State’s Amended Record of Decision and to resolve certain potential other claims, including for natural resource damages. The State of New York is preparing to file a new consent decree reflecting the agreement and to seek court approval. As discussed in Note 5, the applicable remediation standards and other requirements to which we are subject may continue to change, our costs may increase materially, and those costs may not be fully recoverable. Financial Arrangements In the ordinary course of business, the company uses standby letters of credit and guarantees issued by commercial banks and surety bonds issued principally by insurance companies to guarantee the performance on certain obligations. At June 30, 2021, there were $499 million of stand-by letters of credit and guarantees and $79 million of surety bonds outstanding. Commercial Paper The company maintains a commercial paper program that serves as a source of short-term financing with capacity to issue unsecured commercial paper notes up to $2.0 billion. At June 30, 2021, there were no commercial paper borrowings outstanding. Credit Facilities The company maintains a five-year senior unsecured credit facility in an aggregate principal amount of $2.0 billion (the “2018 Credit Agreement”) that matures in August 2024 and is intended to support the company’s commercial paper program and other general corporate purposes. Commercial paper borrowings reduce the amount available for borrowing under the 2018 Credit Agreement. At June 30, 2021, there was no balance outstanding under this facility. At June 30, 2021, the company was in compliance with all covenants under its credit agreements.

Retirement Benefits (Unaudited)

Retirement Benefits (Unaudited)	6 Months Ended
Retirement Benefits (Unaudited)	Jun. 30, 2021
Retirement Benefits [Abstract]
RETIREMENT BENEFITS	RETIREMENT BENEFITS The cost to the company of its pension and other postretirement benefit (OPB) plans is shown in the following table: Three Months Ended June 30 Six Months Ended June 30 Pension OPB Pension OPB $ in millions 2021 2020 2021 2020 2021 2020 2021 2020 Components of net periodic benefit cost (benefit) Service cost $ 103 $ 102 $ 4 $ 5 $ 207 $ 204 $ 8 $ 9 Interest cost 264 306 14 16 527 613 27 33 Expected return on plan assets (629) (594) (27) (25) (1,257) (1,188) (53) (51) Amortization of prior service (credit) cost (2) (15) (1) 1 (4) (30) (1) 2 Net periodic benefit cost (benefit) $ (264) $ (201) $ (10) $ (3) $ (527) $ (401) $ (19) $ (7) Employer Contributions The company sponsors defined benefit pension and OPB plans, as well as defined contribution plans. We fund our defined benefit pension plans annually in a manner consistent with the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act of 2006. Contributions made by the company to its retirement plans are as follows: Three Months Ended June 30 Six Months Ended June 30 $ in millions 2021 2020 2021 2020 Defined benefit pension plans $ 26 $ 26 $ 53 $ 46 OPB plans 10 11 21 23 Defined contribution plans 111 100 377 356

Stock Compensation Plans and Ot

Stock Compensation Plans and Other Compensation Arrangements (Unaudited)	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
STOCK COMPENSATION PLANS AND OTHER COMPENSATION ARRANGEMENTS	STOCK COMPENSATION PLANS AND OTHER COMPENSATION ARRANGEMENTS Stock Awards The following table presents the number of restricted stock rights (RSRs) and restricted performance stock rights (RPSRs) granted to employees under the company’s long-term incentive stock plan and the grant date aggregate fair value of those stock awards for the periods presented: Six Months Ended June 30 in millions 2021 2020 RSRs granted 0.1 0.1 RPSRs granted 0.2 0.2 Grant date aggregate fair value $ 88 $ 91 RSRs typically vest on the third anniversary of the grant date, while RPSRs generally vest and pay out based on the achievement of certain performance metrics over a three Cash Awards The following table presents the minimum and maximum aggregate payout amounts related to cash units (CUs) and cash performance units (CPUs) granted to employees in the periods presented: Six Months Ended June 30 $ in millions 2021 2020 Minimum aggregate payout amount $ 31 $ 31 Maximum aggregate payout amount 178 175 CUs typically vest and settle in cash on the third anniversary of the grant date, while CPUs generally vest and pay out in cash based on the achievement of certain performance metrics over a three

Segment Information (Unaudited)

Segment Information (Unaudited)	3 Months Ended
Segment Information (Unaudited)	Mar. 31, 2021
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The following table presents sales and operating income by segment: Three Months Ended June 30 Six Months Ended June 30 $ in millions 2021 2020 2021 2020 Sales Aeronautics Systems $ 2,913 $ 2,925 $ 5,903 $ 5,768 Defense Systems 1,427 1,886 2,989 3,767 Mission Systems 2,588 2,446 5,177 4,793 Space Systems 2,748 2,048 5,269 3,996 Intersegment eliminations (525) (421) (1,030) (820) Total sales 9,151 8,884 18,308 17,504 Operating income Aeronautics Systems 300 310 608 573 Defense Systems 177 217 354 415 Mission Systems 408 347 805 700 Space Systems 301 209 577 411 Intersegment eliminations (69) (52) (132) (101) Total segment operating income 1,117 1,031 2,212 1,998 FAS/CAS operating adjustment 18 103 37 208 Unallocated corporate (expense) income (91) (140) 1,617 (278) Total operating income $ 1,044 $ 994 $ 3,866 $ 1,928 FAS/CAS Operating Adjustment For financial statement purposes, we account for our employee pension plans in accordance with FAS. However, the cost of these plans is charged to our contracts in accordance with the Federal Acquisition Regulation (FAR) and the related U.S. Government Cost Accounting Standards (CAS). The FAS/CAS operating adjustment, previously referred to as the net FAS (service)/CAS pension adjustment, reflects the difference between CAS pension expense included as cost in segment operating income and the service cost component of FAS expense included in total operating income. Unallocated Corporate (Expense) Income Unallocated corporate (expense) income includes the portion of corporate costs not considered allowable or allocable under applicable CAS or FAR, and therefore not allocated to the segments, such as a portion of management and administration, legal, environmental, compensation, retiree benefits, advertising and other corporate unallowable costs. Unallocated corporate (expense) income also includes costs not considered part of management’s evaluation of segment operating performance, such as amortization of purchased intangible assets and the additional depreciation expense related to the step-up in fair value of property, plant and equipment acquired through business combinations, as well as certain compensation and other costs. During the first quarter of 2021, the $2.0 billion pre-tax gain on the sale of our IT services business and $192 million of unallowable state taxes and transaction costs associated with the divestiture were recorded in Unallocated corporate (expense) income. Disaggregation of Revenue Sales by Customer Type Three Months Ended June 30 Six Months Ended June 30 2021 2020 2021 2020 $ in millions $ % (3) $ % (3) $ % (3) $ % (3) Aeronautics Systems U.S. government (1) $ 2,513 86 % $ 2,477 85 % $ 5,054 86 % $ 4,838 84 % International (2) 351 12 % 407 14 % 750 12 % 851 15 % Other customers 4 — % 12 — % 10 — % 24 — % Intersegment sales 45 2 % 29 1 % 89 2 % 55 1 % Aeronautics Systems sales 2,913 100 % 2,925 100 % 5,903 100 % 5,768 100 % Defense Systems U.S. government (1) 879 62 % 1,305 69 % 1,872 63 % 2,564 68 % International (2) 335 23 % 316 17 % 686 22 % 656 18 % Other customers 18 1 % 85 4 % 51 2 % 196 5 % Intersegment sales 195 14 % 180 10 % 380 13 % 351 9 % Defense Systems sales 1,427 100 % 1,886 100 % 2,989 100 % 3,767 100 % Mission Systems U.S. government (1) 1,901 73 % 1,776 73 % 3,735 72 % 3,447 72 % International (2) 419 16 % 468 19 % 921 18 % 951 20 % Other customers 14 1 % 18 1 % 30 1 % 35 1 % Intersegment sales 254 10 % 184 7 % 491 9 % 360 7 % Mission Systems sales 2,588 100 % 2,446 100 % 5,177 100 % 4,793 100 % Space Systems U.S. government (1) 2,568 93 % 1,911 93 % 4,894 93 % 3,714 93 % International (2) 104 4 % 70 4 % 209 4 % 138 3 % Other customers 45 2 % 39 2 % 96 2 % 90 3 % Intersegment sales 31 1 % 28 1 % 70 1 % 54 1 % Space Systems sales 2,748 100 % 2,048 100 % 5,269 100 % 3,996 100 % Total U.S. government (1) 7,861 86 % 7,469 84 % 15,555 85 % 14,563 83 % International (2) 1,209 13 % 1,261 14 % 2,566 14 % 2,596 15 % Other customers 81 1 % 154 2 % 187 1 % 345 2 % Total Sales $ 9,151 100 % $ 8,884 100 % $ 18,308 100 % $ 17,504 100 % (1) Sales to the U.S. government include sales from contracts for which we are the prime contractor, as well as those for which we are a subcontractor and the ultimate customer is the U.S. government. Each of the company’s segments derives substantial revenue from the U.S. government. (2) International sales include sales from contracts for which we are the prime contractor, as well as those for which we are a subcontractor and the ultimate customer is an international customer. These sales include foreign military sales contracted through the U.S. government. (3) Percentages calculated based on total segment sales. Sales by Contract Type Three Months Ended June 30 Six Months Ended June 30 2021 2020 2021 2020 $ in millions $ % (1) $ % (1) $ % (1) $ % (1) Aeronautics Systems Cost-type $ 1,341 47 % $ 1,426 49 % $ 2,752 47 % $ 2,769 48 % Fixed-price 1,527 53 % 1,470 51 % 3,062 53 % 2,944 52 % Intersegment sales 45 29 89 55 Aeronautics Systems sales 2,913 2,925 5,903 5,768 Defense Systems Cost-type 434 35 % 582 34 % 943 36 % 1,210 35 % Fixed-price 798 65 % 1,124 66 % 1,666 64 % 2,206 65 % Intersegment sales 195 180 380 351 Defense Systems sales 1,427 1,886 2,989 3,767 Mission Systems Cost-type 808 35 % 895 40 % 1,673 36 % 1,741 39 % Fixed-price 1,526 65 % 1,367 60 % 3,013 64 % 2,692 61 % Intersegment sales 254 184 491 360 Mission Systems sales 2,588 2,446 5,177 4,793 Space Systems Cost-type 2,025 75 % 1,468 73 % 3,869 74 % 2,866 73 % Fixed-price 692 25 % 552 27 % 1,330 26 % 1,076 27 % Intersegment sales 31 28 70 54 Space Systems sales 2,748 2,048 5,269 3,996 Total Cost-type 4,608 50 % 4,371 49 % 9,237 50 % 8,586 49 % Fixed-price 4,543 50 % 4,513 51 % 9,071 50 % 8,918 51 % Total Sales $ 9,151 $ 8,884 $ 18,308 $ 17,504 (1) Percentages calculated based on external customer sales. Sales by Geographic Region Three Months Ended June 30 Six Months Ended June 30 2021 2020 2021 2020 $ in millions $ % (2) $ % (2) $ % (2) $ % (2) Aeronautics Systems United States $ 2,517 88 % $ 2,489 86 % $ 5,064 87 % $ 4,862 85 % Asia/Pacific 204 7 % 202 7 % 483 8 % 409 7 % Europe 127 4 % 150 5 % 227 4 % 316 6 % All other (1) 20 1 % 55 2 % 40 1 % 126 2 % Intersegment sales 45 29 89 55 Aeronautics Systems sales 2,913 2,925 5,903 5,768 Defense Systems United States 897 73 % 1,390 82 % 1,923 73 % 2,760 81 % Asia/Pacific 126 10 % 107 6 % 229 9 % 189 5 % Europe 79 6 % 70 4 % 155 6 % 140 4 % All other (1) 130 11 % 139 8 % 302 12 % 327 10 % Intersegment sales 195 180 380 351 Defense Systems sales 1,427 1,886 2,989 3,767 Mission Systems United States 1,915 82 % 1,794 79 % 3,765 80 % 3,482 79 % Asia/Pacific 98 4 % 191 9 % 258 6 % 367 8 % Europe 242 11 % 191 9 % 511 11 % 416 9 % All other (1) 79 3 % 86 3 % 152 3 % 168 4 % Intersegment sales 254 184 491 360 Mission Systems sales 2,588 2,446 5,177 4,793 Space Systems United States 2,614 97 % 1,950 97 % 4,990 96 % 3,804 97 % Asia/Pacific 13 — % 5 — % 29 1 % 10 — % Europe 89 3 % 63 3 % 177 3 % 122 3 % All other (1) 1 — % 2 — % 3 — % 6 — % Intersegment sales 31 28 70 54 Space Systems sales 2,748 2,048 5,269 3,996 Total United States 7,943 86 % 7,623 86 % 15,742 86 % 14,908 85 % Asia/Pacific 441 5 % 505 6 % 999 5 % 975 6 % Europe 537 6 % 474 5 % 1,070 6 % 994 6 % All other (1) 230 3 % 282 3 % 497 3 % 627 3 % Total Sales $ 9,151 $ 8,884 $ 18,308 $ 17,504 (1) All other is principally comprised of the Middle East. (2) Percentages calculated based on external customer sales.

Summary of Significant Accounti

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	These unaudited condensed consolidated financial statements (the “financial statements”) include the accounts of Northrop Grumman Corporation and its subsidiaries and joint ventures or other investments for which we consolidate the financial results (herein referred to as “Northrop Grumman,” the “company,” “we,” “us,” or “our”). Intercompany accounts, transactions and profits are eliminated in consolidation. Investments in equity securities and joint ventures where the company has significant influence, but not control, are accounted for using the equity method.
Basis of Presentation	Effective January 30, 2021 (the “Divestiture date”), we completed the previously announced sale of our IT and mission support services business (the “IT services divestiture”) for $3.4 billion in cash and recorded a pre-tax gain on sale of $2.0 billion. The IT and mission support services business was comprised of the majority of the Information Solutions and Services (IS&S) division of Defense Systems (excluding our Vinnell Arabia business); select cyber, intelligence and missions support programs, which were part of the Cyber and Intelligence Mission Solutions (CIMS) division of Mission Systems; and the Space Technical Services business unit of Space Systems. The assets and liabilities of the IT and mission support services business were classified as held for sale in the consolidated statement of financial position as of December 31, 2020. Operating results include sales and operating income for the IT and mission support services business prior to the Divestiture date. Sales for the IT and mission support services business were $162 million for the six months ended June 30, 2021 and $585 million and $1.1 billion for the three and six months ended June 30, 2020, respectively. Pre-tax profit was $20 million for the six months ended June 30, 2021, and $60 million and $111 million for the three and six months ended June 30, 2020, respectively. These financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP” or “FAS”) and in accordance with the rules of the Securities and Exchange Commission (SEC) for interim reporting. The financial statements include adjustments of a normal recurring nature considered necessary by management for a fair presentation of the company’s unaudited condensed consolidated financial position, results of operations and cash flows. The results reported in these financial statements are not necessarily indicative of results that may be expected for the entire year. These financial statements should be read in conjunction with the information contained in the company’s 2020 Annual Report on Form 10-K. During the first quarter of 2021, we changed the naming convention for our FAS/CAS pension accounts. The Net FAS (service)/CAS pension adjustment is now referred to as the FAS/CAS operating adjustment and the FAS (non-service) pension benefit is now referred to as the Non-operating FAS pension benefit. This change does not impact any current or previously reported amounts. During the second quarter of 2021, we changed the presentation of the retiree benefits components in the operating cash flow section of the Unaudited condensed consolidated statement of cash flows. Prior period amounts have been conformed to current period presentation and this change does not impact previously reported cash provided by operating activities.
Fiscal Period Policy	The quarterly information is labeled using a calendar convention; that is, first quarter is consistently labeled as ending on March 31, second quarter as ending on June 30 and third quarter as ending on September 30. It is the company’s long-standing practice to establish actual interim closing dates using a “fiscal” calendar, in which we close our books on a Friday near these quarter-end dates in order to normalize the potentially disruptive effects of quarterly closings on business processes. This practice is only used at interim periods within a reporting year.
Accounting Estimates	Preparation of the financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the financial statements, as well as the reported amounts of sales and expenses during the reporting period. Estimates have been prepared using the most current and best available information; however, actual results could differ materially from those estimates.
Revenue from Contract with Customer	The majority of our sales are derived from long-term contracts with the U.S. government for the development or production of goods, the provision of services, or a combination of both. We recognize revenue as control is transferred to the customer, either over time or at a point in time. For most of our contracts, control is effectively transferred during the period of performance, so we generally recognize revenue over time using the cost-to-cost method (cost incurred relative to total cost estimated at completion). The company believes this represents the most appropriate measurement towards satisfaction of our performance obligations. Revenue for contracts in which the control of goods produced does not transfer until delivery to the customer is recognized at a point in time (i.e., typically upon delivery). Contract Estimates Use of the cost-to-cost method requires us to make reasonably dependable estimates regarding the revenue and cost associated with the design, manufacture and delivery of our products and services. The company estimates profit on these contracts as the difference between total estimated sales and total estimated cost at completion and recognizes that profit as costs are incurred. Significant judgment is used to estimate total sales and cost at completion. Contract sales may include estimates of variable consideration, including cost or performance incentives (such as award and incentive fees), contract claims and requests for equitable adjustment (REAs). Variable consideration is included in total estimated sales to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. We estimate variable consideration as the most likely amount to which we expect to be entitled. We recognize changes in estimated contract sales or costs and the resulting changes in contract profit on a cumulative basis. Cumulative estimate-at-completion (EAC) adjustments represent the cumulative effect of the changes on current and prior periods; sales and operating margins in future periods are recognized as if the revised estimates had been used since contract inception. If it is determined that a loss is expected to result on an individual performance obligation, the entire amount of the estimable future loss, including an allocation of general and administrative expense, is charged against income in the period the loss is identified.
Earnings Per Share	We calculate basic earnings per share by dividing net earnings by the weighted-average number of shares of common stock outstanding during each period.Diluted earnings per share include the dilutive effect of awards granted to employees under stock-based compensation plans.
Investments in Marketable Securities	The company holds a portfolio of marketable securities to partially fund non-qualified employee benefit plans. A portion of these securities are held in common/collective trust funds and are measured at fair value using net asset value (NAV) per share as a practical expedient; and therefore are not required to be categorized in the fair value hierarchy table
Derivative Financial Instruments and Hedging Activities	Where model-derived valuations are appropriate, the company utilizes the income approach to determine the fair value and uses the applicable London Interbank Offered Rate (LIBOR) swap rates.
Fair Value of Long-term Debt	We calculated the fair value of long-term debt using Level 2 inputs, based on interest rates available for debt with terms and maturities similar to the company’s existing debt arrangements.
U.S. Government Cost Claims	From time to time, the company is advised of claims by the U.S. government concerning certain potential disallowed costs, plus, at times, penalties and interest. When such findings are presented, the company and U.S. government representatives engage in discussions to enable the company to evaluate the merits of these claims, as well as to assess the amounts being claimed. Where appropriate, provisions are made to reflect the company’s estimated exposure for such potential disallowed costs. Such provisions are reviewed periodically using the most recent information available.
Pension and Other Postretirement Plans	We fund our defined benefit pension plans annually in a manner consistent with the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act of 2006
New Accounting Pronouncements, Policy	Accounting standards updates adopted and/or issued, but not effective until after June 30, 2021, are not expected to have a material effect on the company’s unaudited condensed consolidated financial position, annual results of operations and/or cash flows.

Basis of Presentation (Unaudi_2

Basis of Presentation (Unaudited) (Tables)	6 Months Ended
Basis of Presentation (Unaudited) (Tables)	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Change in Accounting Estimate [Table Text Block]	The following table presents the effect of aggregate net EAC adjustments: Three Months Ended June 30 Six Months Ended June 30 $ in millions, except per share data 2021 2020 2021 2020 Revenue $ 160 $ 125 $ 362 $ 261 Operating income 154 112 344 236 Net earnings (1) 122 88 272 186 Diluted earnings per share (1) 0.76 0.53 1.67 1.11
Accumulated Other Comprehensive Loss	The components of accumulated other comprehensive loss are as follows: $ in millions June 30, 2021 December 31, 2020 Unamortized prior service credit, net of tax expense of $2 for 2021 and $3 for 2020 $ 6 $ 10 Cumulative translation adjustment and other, net (138) (138) Total accumulated other comprehensive loss $ (132) $ (128)

Earnings Per Share, Share Rep_2

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Unaudited) (Tables)	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Share Repurchases	The table below summarizes the company’s share repurchases to date under the authorizations described above: Shares Repurchased Repurchase Program Amount Total Average (1) Date Completed Six Months Ended June 30 2021 2020 September 16, 2015 $ 4,000 15.4 $ 260.33 March 2020 — 0.9 December 4, 2018 $ 3,000 7.0 329.81 6.5 0.5 January 25, 2021 $ 3,000 — — — — (1) Includes commissions paid.

Income Taxes (Unaudited) (Table

Income Taxes (Unaudited) (Tables)	6 Months Ended
Income Taxes (Unaudited) (Tables)	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense and Effective Income Tax Rates	Three Months Ended June 30 Six Months Ended June 30 $ in millions 2021 2020 2021 2020 Federal and foreign income tax expense $ 265 $ 198 $ 1,086 $ 383 Effective income tax rate 20.4 % 16.5 % 25.2 % 17.0 %

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Unaudited) (Tables)	6 Months Ended
Fair Value of Financial Instruments (Unaudited) (Tables)	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair value information of assets and liabilities measured at fair value on a recurring basis	The following table presents the financial assets and liabilities the company records at fair value on a recurring basis identified by the level of inputs used to determine fair value: June 30, 2021 December 31, 2020 $ in millions Level 1 Level 2 Total Level 1 Level 2 Total Financial Assets Marketable securities $ 404 $ — $ 404 $ 377 $ 1 $ 378 Marketable securities valued using NAV 17 18 Total marketable securities 404 — 421 377 1 396 Derivatives — 1 1 — — —

Commitments and Contingencies_2

Commitments and Contingencies (Unaudited) (Tables)	6 Months Ended
Commitments and Contingencies (Unaudited) (Tables)	Jun. 30, 2021
Environmental Remediation Range of Future Costs [Line Items]
Environmental Remediation [Table Text Block]	The table below summarizes the amount accrued for environmental remediation costs, management’s estimate of the amount of reasonably possible future costs in excess of accrued costs and the deferred costs expected to be recoverable through overhead charges on U.S. government contracts as of June 30, 2021 and December 31, 2020: $ in millions Accrued Costs (1)(2) Reasonably Possible Future Costs in Excess of Accrued Costs (2) Deferred Costs (3) June 30, 2021 $ 611 $ 364 $ 525 December 31, 2020 614 346 529 (1) As of June 30, 2021, $250 million is recorded in Other current liabilities and $361 million is recorded in Other non-current liabilities. (2) Estimated remediation costs are not discounted to present value. The reasonably possible future costs in excess of accrued costs do not take into consideration amounts expected to be recoverable through overhead charges on U.S. government contracts. (3) As of June 30, 2021, $221 million is deferred in Prepaid expenses and other current assets and $304 million is deferred in Other non-current assets. These amounts are evaluated for recoverability on a routine basis.

Retirement Benefits (Unaudite_2

Retirement Benefits (Unaudited) (Tables)	6 Months Ended
Retirement Benefits (Unaudited) (Tables)	Jun. 30, 2021
Retirement Benefits [Abstract]
Components of net periodic benefit cost	The cost to the company of its pension and other postretirement benefit (OPB) plans is shown in the following table: Three Months Ended June 30 Six Months Ended June 30 Pension OPB Pension OPB $ in millions 2021 2020 2021 2020 2021 2020 2021 2020 Components of net periodic benefit cost (benefit) Service cost $ 103 $ 102 $ 4 $ 5 $ 207 $ 204 $ 8 $ 9 Interest cost 264 306 14 16 527 613 27 33 Expected return on plan assets (629) (594) (27) (25) (1,257) (1,188) (53) (51) Amortization of prior service (credit) cost (2) (15) (1) 1 (4) (30) (1) 2 Net periodic benefit cost (benefit) $ (264) $ (201) $ (10) $ (3) $ (527) $ (401) $ (19) $ (7)
Employer contributions to retirement plans	Contributions made by the company to its retirement plans are as follows: Three Months Ended June 30 Six Months Ended June 30 $ in millions 2021 2020 2021 2020 Defined benefit pension plans $ 26 $ 26 $ 53 $ 46 OPB plans 10 11 21 23 Defined contribution plans 111 100 377 356

Stock Compensation Plans and _2

Stock Compensation Plans and Other Compensation Arrangements (Unaudited) (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Nonvested Restricted Stock Shares Activity [Table Text Block]	The following table presents the number of restricted stock rights (RSRs) and restricted performance stock rights (RPSRs) granted to employees under the company’s long-term incentive stock plan and the grant date aggregate fair value of those stock awards for the periods presented: Six Months Ended June 30 in millions 2021 2020 RSRs granted 0.1 0.1 RPSRs granted 0.2 0.2 Grant date aggregate fair value $ 88 $ 91
Cash Units and Cash Performance Units Aggregate Payout Amount [Table Text Block]	The following table presents the minimum and maximum aggregate payout amounts related to cash units (CUs) and cash performance units (CPUs) granted to employees in the periods presented: Six Months Ended June 30 $ in millions 2021 2020 Minimum aggregate payout amount $ 31 $ 31 Maximum aggregate payout amount 178 175

Segment Information (Unaudite_2

Segment Information (Unaudited) (Tables)	6 Months Ended
Segment Information (Unaudited) (Tables)	Jun. 30, 2021
Segment Reporting [Abstract]
Sales and operating income by segment	The following table presents sales and operating income by segment: Three Months Ended June 30 Six Months Ended June 30 $ in millions 2021 2020 2021 2020 Sales Aeronautics Systems $ 2,913 $ 2,925 $ 5,903 $ 5,768 Defense Systems 1,427 1,886 2,989 3,767 Mission Systems 2,588 2,446 5,177 4,793 Space Systems 2,748 2,048 5,269 3,996 Intersegment eliminations (525) (421) (1,030) (820) Total sales 9,151 8,884 18,308 17,504 Operating income Aeronautics Systems 300 310 608 573 Defense Systems 177 217 354 415 Mission Systems 408 347 805 700 Space Systems 301 209 577 411 Intersegment eliminations (69) (52) (132) (101) Total segment operating income 1,117 1,031 2,212 1,998 FAS/CAS operating adjustment 18 103 37 208 Unallocated corporate (expense) income (91) (140) 1,617 (278) Total operating income $ 1,044 $ 994 $ 3,866 $ 1,928
Revenue by Major Customers by Reporting Segments	Sales by Customer Type Three Months Ended June 30 Six Months Ended June 30 2021 2020 2021 2020 $ in millions $ % (3) $ % (3) $ % (3) $ % (3) Aeronautics Systems U.S. government (1) $ 2,513 86 % $ 2,477 85 % $ 5,054 86 % $ 4,838 84 % International (2) 351 12 % 407 14 % 750 12 % 851 15 % Other customers 4 — % 12 — % 10 — % 24 — % Intersegment sales 45 2 % 29 1 % 89 2 % 55 1 % Aeronautics Systems sales 2,913 100 % 2,925 100 % 5,903 100 % 5,768 100 % Defense Systems U.S. government (1) 879 62 % 1,305 69 % 1,872 63 % 2,564 68 % International (2) 335 23 % 316 17 % 686 22 % 656 18 % Other customers 18 1 % 85 4 % 51 2 % 196 5 % Intersegment sales 195 14 % 180 10 % 380 13 % 351 9 % Defense Systems sales 1,427 100 % 1,886 100 % 2,989 100 % 3,767 100 % Mission Systems U.S. government (1) 1,901 73 % 1,776 73 % 3,735 72 % 3,447 72 % International (2) 419 16 % 468 19 % 921 18 % 951 20 % Other customers 14 1 % 18 1 % 30 1 % 35 1 % Intersegment sales 254 10 % 184 7 % 491 9 % 360 7 % Mission Systems sales 2,588 100 % 2,446 100 % 5,177 100 % 4,793 100 % Space Systems U.S. government (1) 2,568 93 % 1,911 93 % 4,894 93 % 3,714 93 % International (2) 104 4 % 70 4 % 209 4 % 138 3 % Other customers 45 2 % 39 2 % 96 2 % 90 3 % Intersegment sales 31 1 % 28 1 % 70 1 % 54 1 % Space Systems sales 2,748 100 % 2,048 100 % 5,269 100 % 3,996 100 % Total U.S. government (1) 7,861 86 % 7,469 84 % 15,555 85 % 14,563 83 % International (2) 1,209 13 % 1,261 14 % 2,566 14 % 2,596 15 % Other customers 81 1 % 154 2 % 187 1 % 345 2 % Total Sales $ 9,151 100 % $ 8,884 100 % $ 18,308 100 % $ 17,504 100 % (1) Sales to the U.S. government include sales from contracts for which we are the prime contractor, as well as those for which we are a subcontractor and the ultimate customer is the U.S. government. Each of the company’s segments derives substantial revenue from the U.S. government. (2) International sales include sales from contracts for which we are the prime contractor, as well as those for which we are a subcontractor and the ultimate customer is an international customer. These sales include foreign military sales contracted through the U.S. government. (3) Percentages calculated based on total segment sales.
Revenue from External Customers by Contract Type	Sales by Contract Type Three Months Ended June 30 Six Months Ended June 30 2021 2020 2021 2020 $ in millions $ % (1) $ % (1) $ % (1) $ % (1) Aeronautics Systems Cost-type $ 1,341 47 % $ 1,426 49 % $ 2,752 47 % $ 2,769 48 % Fixed-price 1,527 53 % 1,470 51 % 3,062 53 % 2,944 52 % Intersegment sales 45 29 89 55 Aeronautics Systems sales 2,913 2,925 5,903 5,768 Defense Systems Cost-type 434 35 % 582 34 % 943 36 % 1,210 35 % Fixed-price 798 65 % 1,124 66 % 1,666 64 % 2,206 65 % Intersegment sales 195 180 380 351 Defense Systems sales 1,427 1,886 2,989 3,767 Mission Systems Cost-type 808 35 % 895 40 % 1,673 36 % 1,741 39 % Fixed-price 1,526 65 % 1,367 60 % 3,013 64 % 2,692 61 % Intersegment sales 254 184 491 360 Mission Systems sales 2,588 2,446 5,177 4,793 Space Systems Cost-type 2,025 75 % 1,468 73 % 3,869 74 % 2,866 73 % Fixed-price 692 25 % 552 27 % 1,330 26 % 1,076 27 % Intersegment sales 31 28 70 54 Space Systems sales 2,748 2,048 5,269 3,996 Total Cost-type 4,608 50 % 4,371 49 % 9,237 50 % 8,586 49 % Fixed-price 4,543 50 % 4,513 51 % 9,071 50 % 8,918 51 % Total Sales $ 9,151 $ 8,884 $ 18,308 $ 17,504 (1) Percentages calculated based on external customer sales.
Revenue from External Customers by Geographic Areas	Sales by Geographic Region Three Months Ended June 30 Six Months Ended June 30 2021 2020 2021 2020 $ in millions $ % (2) $ % (2) $ % (2) $ % (2) Aeronautics Systems United States $ 2,517 88 % $ 2,489 86 % $ 5,064 87 % $ 4,862 85 % Asia/Pacific 204 7 % 202 7 % 483 8 % 409 7 % Europe 127 4 % 150 5 % 227 4 % 316 6 % All other (1) 20 1 % 55 2 % 40 1 % 126 2 % Intersegment sales 45 29 89 55 Aeronautics Systems sales 2,913 2,925 5,903 5,768 Defense Systems United States 897 73 % 1,390 82 % 1,923 73 % 2,760 81 % Asia/Pacific 126 10 % 107 6 % 229 9 % 189 5 % Europe 79 6 % 70 4 % 155 6 % 140 4 % All other (1) 130 11 % 139 8 % 302 12 % 327 10 % Intersegment sales 195 180 380 351 Defense Systems sales 1,427 1,886 2,989 3,767 Mission Systems United States 1,915 82 % 1,794 79 % 3,765 80 % 3,482 79 % Asia/Pacific 98 4 % 191 9 % 258 6 % 367 8 % Europe 242 11 % 191 9 % 511 11 % 416 9 % All other (1) 79 3 % 86 3 % 152 3 % 168 4 % Intersegment sales 254 184 491 360 Mission Systems sales 2,588 2,446 5,177 4,793 Space Systems United States 2,614 97 % 1,950 97 % 4,990 96 % 3,804 97 % Asia/Pacific 13 — % 5 — % 29 1 % 10 — % Europe 89 3 % 63 3 % 177 3 % 122 3 % All other (1) 1 — % 2 — % 3 — % 6 — % Intersegment sales 31 28 70 54 Space Systems sales 2,748 2,048 5,269 3,996 Total United States 7,943 86 % 7,623 86 % 15,742 86 % 14,908 85 % Asia/Pacific 441 5 % 505 6 % 999 5 % 975 6 % Europe 537 6 % 474 5 % 1,070 6 % 994 6 % All other (1) 230 3 % 282 3 % 497 3 % 627 3 % Total Sales $ 9,151 $ 8,884 $ 18,308 $ 17,504 (1) All other is principally comprised of the Middle East. (2) Percentages calculated based on external customer sales.

Basis of Presentation (Unaudi_3

Basis of Presentation (Unaudited) Sale of our IT and mission support services business (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 30, 2021
Accounting Policies [Abstract]
Sale of our IT and mission support services business					$ 3,400
Pre-tax gain on sale of business	$ 2,000		$ 2,000
Pretax profit of the IT and mission support services business		$ 60	20	$ 111
Sales for the IT and mission support services business		$ 585	$ 162	$ 1,100

Basis of Presentation (Unaudi_4

Basis of Presentation (Unaudited) Contract Estimates (Details 2) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Change in Accounting Estimate [Line Items]
Revenue	$ 160	$ 125	$ 362	$ 261
Operating income	1,044	994	3,866	1,928
Net earnings	$ 1,037	$ 1,005	$ 3,232	$ 1,873
Diluted earnings per share	$ 6.42	$ 6.01	$ 19.89	$ 11.16
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating income	$ 154	$ 112	$ 344	$ 236
Net earnings	$ 122	$ 88	$ 272	$ 186
Diluted earnings per share	$ 0.76	$ 0.53	$ 1.67	$ 1.11

Basis of Presentation (Unaudi_5

Basis of Presentation (Unaudited) Backlog and Contract Assets and Liabilities (Details 3) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Change in Contract with Customer, Liability [Abstract]
Contract with Customer, Liability, Revenue Recognized	$ 482	$ 442	$ 1,500	$ 1,200
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 76,600		$ 76,600
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation			Of our June 30, 2021 backlog, we expect to recognize approximately 40 percent as revenue over the next 12 months and 60 percent as revenue over the next 24 months, with the remainder to be recognized thereafter.

Basis of Presentation (Unaudi_6

Basis of Presentation (Unaudited) Property Plant and Equipment (Details 4) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Property, Plant and Equipment [Abstract]
Proceeds from sale of equipment to a customer	$ 56	$ 0
Capital Expenditures Incurred but Not yet Paid	$ 56	$ 99

Basis of Presentation (Unaudi_7

Basis of Presentation (Unaudited) Accumulated Other Comprehensive Income (Loss) (Details 5) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unamortized prior service credit, net of tax expense of $2 for 2021 and $3 for 2020	$ 6	$ 10
Cumulative translation adjustment and other, net	(138)	(138)
Total accumulated other comprehensive loss	(132)	(128)
Prior Service Credit Tax Expense	$ 2	$ 3

Earnings Per Share, Share Rep_3

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Unaudited) Earnings Per Share and Dividends (Details 1) - $ / shares shares in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2021	May 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share, Basic and Diluted [Abstract]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements			0.5	0.4	0.5	0.6
Common stock dividends per share, declared (in dollars per share)	$ 1.57	$ 1.45			$ 3.02	$ 2.77
Increase in quarterly common stock dividend (percent)	8.00%

Earnings Per Share, Share Rep_4

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Unaudited) Share Repurchases (Details 2) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Feb. 01, 2021	Jun. 30, 2021	Jun. 30, 2020	Feb. 29, 2020	Jun. 01, 2021	Jan. 25, 2021	Dec. 04, 2018	Sep. 16, 2015
Share Repurchases - Notes to Table
Accelerated Share Repurchase	$ 2,000
Accelerated Share Repurchase, Payment	$ 2,000
Accelerated share repurchase initial receipt shares	5.9
Accelerated Share Repurchase Initial Receipt Monetary	$ 1,700
Accelerated Share Repurchase Remaining Amount					$ 300
Accelerated Share Repurchase Final Delivery Possible Settlement Shares					0.2
Accelerated Share Repurchase Share Price					$ 327.29
September 2015 Share Repurchase Program Original Authorization
Share Repurchase [Line Items]
Amount Authorized								$ 4,000
Shares Retired				15.4
Average Cost Per Share				$ 260.33
Shares Repurchased		0	0.9
December 2018 Share Repurchase Original Authorization [Member]
Share Repurchase [Line Items]
Amount Authorized							$ 3,000
Shares Retired		7
Average Cost Per Share		$ 329.81
Shares Repurchased		6.5	0.5
Share Repurchases - Notes to Table
Shares repurchased amount		$ 2,300
Amount remaining under authorization for share repurchases		$ 700
January 2021 Share Repurchase Original Authorization [Member]
Share Repurchase [Line Items]
Amount Authorized						$ 3,000
Shares Retired		0
Average Cost Per Share		$ 0
Shares Repurchased		0	0

Income Taxes (Unaudited) Effect

Income Taxes (Unaudited) Effective Income Tax Rate Reconciliation (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal and foreign income tax expense	$ 265	$ 198	$ 1,086	$ 383
Effective income tax rate	20.40%	16.50%	25.20%	17.00%
Effective Income Tax Rate Reconciliation, Disposition of Business, Amount			$ 250
Nondeductible Goodwill, Divested Business			1,200
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ 48	$ 48	99	$ 90
Income Taxes Receivable	$ 0		$ 0		$ 792

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Unaudited) (Details 1) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	$ 421	$ 396
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	404	377
Derivatives	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	0	1
Derivatives	1	0
Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	404	378
Derivatives	1	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	404	377
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	0	1
Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable Securities	$ 17	$ 18

Amounts in Paragraphs - Fair Va

Amounts in Paragraphs - Fair Value of Financial Instruments (Unaudited) (Details 2) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 138	$ 133
Foreign Currency Cash Flow Hedge Derivative at Fair Value, Net	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments (Unaudited) Long-term Debt (Details 3) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Mar. 01, 2021	Dec. 31, 2020
Debt Instruments [Abstract]
2021 Note, Face Amount		$ 700
2021 Note, Interest Rate, Stated Percentage		3.50%
2022 Note, Face Amount		$ 1,500
2022 Note, Interest Rate, Stated Percentage		2.55%
Long-term Debt, Fair Value	$ 15,300		$ 18,200
Redemption Premium	$ 54

Investigations, Claims and Li_2

Investigations, Claims and Litigation (Unaudited) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2007	Jun. 30, 2021	Feb. 16, 2018	May 04, 2012
United States Postal Service
Loss Contingencies
Contract award	$ 875
False Claims Act \| Threatened Litigation \| United States Postal Service
Loss Contingencies
CounterclaimForDamagesSought			$ 193
Unpaid Portions of Contract Price and Direct Costs Incurred [Member] \| United States Postal Service
Loss Contingencies
Unbilled receivables, net				$ 63
Acts and Omissions with Adverse Affects on Performance and Obligations [Member] \| United States Postal Service
Loss Contingencies
Gain contingency, unrecorded amount				$ 115
Maximum \| United States Postal Service
Loss Contingencies
Loss Contingency, Estimate of Possible Loss		$ 410

Commitments and Contingencies_3

Commitments and Contingencies (Unaudited) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	$ 611	$ 614
Loss Contingency, Range of Possible Loss, Portion Not Accrued	364	346
Recorded Third-Party Environmental Recoveries, Amount	525	$ 529
Financial Arrangements
Standby Unused Letters Of Credit and bank guarantees	499
Surety Bond Outstanding	$ 79
Line of Credit Facility [Line Items]
Debt Instrument, Covenant Compliance	the company was in compliance with all covenants under its credit agreements.
Five Year Term [Member] [Domain]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000
Line of Credit Outstanding	0
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Commercial Paper, Maximum Borrowing Capacity	2,000
Commercial Paper	0
Other Current Liabilities [Member]
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	250
Other Noncurrent Liabilities [Member]
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	361
Other Current Assets [Member]
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Amount	221
Other Noncurrent Assets [Member]
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Amount	$ 304

Retirement Benefits (Unaudite_3

Retirement Benefits (Unaudited) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Components of Net Periodic Benefit Cost
Net periodic benefit cost (benefit)			$ (546)	$ (408)
Defined contribution plan, employer contributions	$ 111	$ 100	377	356
Pension Benefits
Components of Net Periodic Benefit Cost
Service cost	103	102	207	204
Interest cost	264	306	527	613
Expected return on plan assets	(629)	(594)	(1,257)	(1,188)
Amortization of prior service credit	(2)	(15)	(4)	(30)
Net periodic benefit cost (benefit)	(264)	(201)	(527)	(401)
Defined benefit plan, contributions by Employer	26	26	53	46
OPB
Components of Net Periodic Benefit Cost
Service cost	4	5	8	9
Interest cost	14	16	27	33
Expected return on plan assets	(27)	(25)	(53)	(51)
Amortization of prior service credit	(1)	1	(1)	2
Net periodic benefit cost (benefit)	(10)	(3)	(19)	(7)
Defined benefit plan, contributions by Employer	$ 10	$ 11	$ 21	$ 23

Stock Compensation Plans and _3

Stock Compensation Plans and Other Compensation Arrangements (Unaudited) (Details) - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Rights and Restricted Performance Stock Rights Grant Date Aggregate Fair Value	$ 88	$ 91
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	0.1	0.1
Vesting period	3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	0.2	0.2
Vesting period	3 years
Cash Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Cash Units and Cash Performance Units \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Cash-based Arrangements, Liability, Current and Noncurrent	$ 31	$ 31
Cash Units and Cash Performance Units \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Cash-based Arrangements, Liability, Current and Noncurrent	$ 178	$ 175
Cash Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years

Segment Information (Unaudite_3

Segment Information (Unaudited) Reconciliation to Consolidated Operating Income (Details 1) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Sales	$ 9,151		$ 8,884	$ 18,308	$ 17,504
Operating income	1,044		994	3,866	1,928
Pre-tax gain on sale of business		$ 2,000		2,000
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	1,117		1,031	2,212	1,998
Operating Segments [Member] \| Aeronautics Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,913		2,925	5,903	5,768
Operating income	300		310	608	573
Operating Segments [Member] \| Defense Systems [Member]
Segment Reporting Information [Line Items]
Sales	1,427		1,886	2,989	3,767
Operating income	177		217	354	415
Operating Segments [Member] \| Mission Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,588		2,446	5,177	4,793
Operating income	408		347	805	700
Operating Segments [Member] \| Space Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,748		2,048	5,269	3,996
Operating income	301		209	577	411
Intersegment sales
Segment Reporting Information [Line Items]
Sales	(525)		(421)	(1,030)	(820)
Operating income	(69)		(52)	(132)	(101)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
FAS/CAS operating adjustment	18		103	37	208
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating income	$ (91)		$ (140)	$ 1,617	$ (278)

Segment Information (Unaudite_4

Segment Information (Unaudited) Sales by Customer Type (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue, Major Customer [Line Items]
Sales	$ 9,151	$ 8,884	$ 18,308	$ 17,504
Sales percentage	100.00%	100.00%	100.00%	100.00%
U.S. government(1)
Revenue, Major Customer [Line Items]
Sales	$ 7,861	$ 7,469	$ 15,555	$ 14,563
Sales percentage	86.00%	84.00%	85.00%	83.00%
U.S. government(1) \| Aeronautics Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 2,513	$ 2,477	$ 5,054	$ 4,838
Sales percentage	86.00%	85.00%	86.00%	84.00%
U.S. government(1) \| Defense Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 879	$ 1,305	$ 1,872	$ 2,564
Sales percentage	62.00%	69.00%	63.00%	68.00%
U.S. government(1) \| Mission Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 1,901	$ 1,776	$ 3,735	$ 3,447
Sales percentage	73.00%	73.00%	72.00%	72.00%
U.S. government(1) \| Space Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 2,568	$ 1,911	$ 4,894	$ 3,714
Sales percentage	93.00%	93.00%	93.00%	93.00%
International(2)
Revenue, Major Customer [Line Items]
Sales	$ 1,209	$ 1,261	$ 2,566	$ 2,596
Sales percentage	13.00%	14.00%	14.00%	15.00%
International(2) \| Aeronautics Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 351	$ 407	$ 750	$ 851
Sales percentage	12.00%	14.00%	12.00%	15.00%
International(2) \| Defense Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 335	$ 316	$ 686	$ 656
Sales percentage	23.00%	17.00%	22.00%	18.00%
International(2) \| Mission Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 419	$ 468	$ 921	$ 951
Sales percentage	16.00%	19.00%	18.00%	20.00%
International(2) \| Space Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 104	$ 70	$ 209	$ 138
Sales percentage	4.00%	4.00%	4.00%	3.00%
Other customers
Revenue, Major Customer [Line Items]
Sales	$ 81	$ 154	$ 187	$ 345
Sales percentage	1.00%	2.00%	1.00%	2.00%
Other customers \| Aeronautics Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 4	$ 12	$ 10	$ 24
Other customers \| Defense Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 18	$ 85	$ 51	$ 196
Sales percentage	1.00%	4.00%	2.00%	5.00%
Other customers \| Mission Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 14	$ 18	$ 30	$ 35
Sales percentage	1.00%	1.00%	1.00%	1.00%
Other customers \| Space Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 45	$ 39	$ 96	$ 90
Sales percentage	2.00%	2.00%	2.00%	3.00%
Intersegment Sales [Member] \| Aeronautics Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 45	$ 29	$ 89	$ 55
Sales percentage	2.00%	1.00%	2.00%	1.00%
Intersegment Sales [Member] \| Defense Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 195	$ 180	$ 380	$ 351
Sales percentage	14.00%	10.00%	13.00%	9.00%
Intersegment Sales [Member] \| Mission Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 254	$ 184	$ 491	$ 360
Sales percentage	10.00%	7.00%	9.00%	7.00%
Intersegment Sales [Member] \| Space Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 31	$ 28	$ 70	$ 54
Sales percentage	1.00%	1.00%	1.00%	1.00%
Operating Segments [Member] \| Aeronautics Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 2,913	$ 2,925	$ 5,903	$ 5,768
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Defense Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 1,427	$ 1,886	$ 2,989	$ 3,767
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Mission Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 2,588	$ 2,446	$ 5,177	$ 4,793
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Space Systems [Member]
Revenue, Major Customer [Line Items]
Sales	$ 2,748	$ 2,048	$ 5,269	$ 3,996
Sales percentage	100.00%	100.00%	100.00%	100.00%

Segment Information (Unaudite_5

Segment Information (Unaudited) Sales by Contract Type (Details 3) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue, Contract Type [Line Items]
Sales	$ 9,151	$ 8,884	$ 18,308	$ 17,504
Sales percentage	100.00%	100.00%	100.00%	100.00%
Cost-type [Member]
Revenue, Contract Type [Line Items]
Sales	$ 4,608	$ 4,371	$ 9,237	$ 8,586
Sales percentage	50.00%	49.00%	50.00%	49.00%
Cost-type [Member] \| Aeronautics Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 1,341	$ 1,426	$ 2,752	$ 2,769
Sales percentage	47.00%	49.00%	47.00%	48.00%
Cost-type [Member] \| Defense Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 434	$ 582	$ 943	$ 1,210
Sales percentage	35.00%	34.00%	36.00%	35.00%
Cost-type [Member] \| Mission Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 808	$ 895	$ 1,673	$ 1,741
Sales percentage	35.00%	40.00%	36.00%	39.00%
Cost-type [Member] \| Space Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 2,025	$ 1,468	$ 3,869	$ 2,866
Sales percentage	75.00%	73.00%	74.00%	73.00%
Fixed-price [Member]
Revenue, Contract Type [Line Items]
Sales	$ 4,543	$ 4,513	$ 9,071	$ 8,918
Sales percentage	50.00%	51.00%	50.00%	51.00%
Fixed-price [Member] \| Aeronautics Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 1,527	$ 1,470	$ 3,062	$ 2,944
Sales percentage	53.00%	51.00%	53.00%	52.00%
Fixed-price [Member] \| Defense Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 798	$ 1,124	$ 1,666	$ 2,206
Sales percentage	65.00%	66.00%	64.00%	65.00%
Fixed-price [Member] \| Mission Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 1,526	$ 1,367	$ 3,013	$ 2,692
Sales percentage	65.00%	60.00%	64.00%	61.00%
Fixed-price [Member] \| Space Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 692	$ 552	$ 1,330	$ 1,076
Sales percentage	25.00%	27.00%	26.00%	27.00%
Intersegment sales \| Aeronautics Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 45	$ 29	$ 89	$ 55
Intersegment sales \| Defense Systems [Member]
Revenue, Contract Type [Line Items]
Sales	195	180	380	351
Intersegment sales \| Mission Systems [Member]
Revenue, Contract Type [Line Items]
Sales	254	184	491	360
Intersegment sales \| Space Systems [Member]
Revenue, Contract Type [Line Items]
Sales	31	28	70	54
Operating Segments [Member] \| Aeronautics Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 2,913	$ 2,925	$ 5,903	$ 5,768
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Defense Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 1,427	$ 1,886	$ 2,989	$ 3,767
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Mission Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 2,588	$ 2,446	$ 5,177	$ 4,793
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Space Systems [Member]
Revenue, Contract Type [Line Items]
Sales	$ 2,748	$ 2,048	$ 5,269	$ 3,996
Sales percentage	100.00%	100.00%	100.00%	100.00%

Segment Information (Unaudite_6

Segment Information (Unaudited) Sales by Geographic Location (Details 4) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue, Geographic Location [Line Items]
Sales	$ 9,151	$ 8,884	$ 18,308	$ 17,504
Sales percentage	100.00%	100.00%	100.00%	100.00%
United States
Revenue, Geographic Location [Line Items]
Sales	$ 7,943	$ 7,623	$ 15,742	$ 14,908
Sales percentage	86.00%	86.00%	86.00%	85.00%
United States \| Aeronautics Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 2,517	$ 2,489	$ 5,064	$ 4,862
Sales percentage	88.00%	86.00%	87.00%	85.00%
United States \| Defense Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 897	$ 1,390	$ 1,923	$ 2,760
Sales percentage	73.00%	82.00%	73.00%	81.00%
United States \| Mission Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 1,915	$ 1,794	$ 3,765	$ 3,482
Sales percentage	82.00%	79.00%	80.00%	79.00%
United States \| Space Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 2,614	$ 1,950	$ 4,990	$ 3,804
Sales percentage	97.00%	97.00%	96.00%	97.00%
Asia/Pacific
Revenue, Geographic Location [Line Items]
Sales	$ 441	$ 505	$ 999	$ 975
Sales percentage	5.00%	6.00%	5.00%	6.00%
Asia/Pacific \| Aeronautics Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 204	$ 202	$ 483	$ 409
Sales percentage	7.00%	7.00%	8.00%	7.00%
Asia/Pacific \| Defense Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 126	$ 107	$ 229	$ 189
Sales percentage	10.00%	6.00%	9.00%	5.00%
Asia/Pacific \| Mission Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 98	$ 191	$ 258	$ 367
Sales percentage	4.00%	9.00%	6.00%	8.00%
Asia/Pacific \| Space Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 13	$ 5	$ 29	$ 10
Sales percentage			1.00%
Europe
Revenue, Geographic Location [Line Items]
Sales	$ 537	$ 474	$ 1,070	$ 994
Sales percentage	6.00%	5.00%	6.00%	6.00%
Europe \| Aeronautics Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 127	$ 150	$ 227	$ 316
Sales percentage	4.00%	5.00%	4.00%	6.00%
Europe \| Defense Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 79	$ 70	$ 155	$ 140
Sales percentage	6.00%	4.00%	6.00%	4.00%
Europe \| Mission Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 242	$ 191	$ 511	$ 416
Sales percentage	11.00%	9.00%	11.00%	9.00%
Europe \| Space Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 89	$ 63	$ 177	$ 122
Sales percentage	3.00%	3.00%	3.00%	3.00%
All other
Revenue, Geographic Location [Line Items]
Sales	$ 230	$ 282	$ 497	$ 627
Sales percentage	3.00%	3.00%	3.00%	3.00%
All other \| Aeronautics Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 20	$ 55	$ 40	$ 126
Sales percentage	1.00%	2.00%	1.00%	2.00%
All other \| Defense Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 130	$ 139	$ 302	$ 327
Sales percentage	11.00%	8.00%	12.00%	10.00%
All other \| Mission Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 79	$ 86	$ 152	$ 168
Sales percentage	3.00%	3.00%	3.00%	4.00%
All other \| Space Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 1	$ 2	$ 3	$ 6
Intersegment sales \| Aeronautics Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	45	29	89	55
Intersegment sales \| Defense Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	195	180	380	351
Intersegment sales \| Mission Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	254	184	491	360
Intersegment sales \| Space Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	31	28	70	54
Operating Segments [Member] \| Aeronautics Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 2,913	$ 2,925	$ 5,903	$ 5,768
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Defense Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 1,427	$ 1,886	$ 2,989	$ 3,767
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Mission Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 2,588	$ 2,446	$ 5,177	$ 4,793
Sales percentage	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] \| Space Systems [Member]
Revenue, Geographic Location [Line Items]
Sales	$ 2,748	$ 2,048	$ 5,269	$ 3,996
Sales percentage	100.00%	100.00%	100.00%	100.00%

Segment Information (Unaudite_7

Segment Information (Unaudited) Unallocated Corporate Income (Details 5) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Jun. 30, 2021
Segment Reporting [Abstract]
Pre-tax gain on sale of business	$ 2,000	$ 2,000
Unallowable State Taxes and Transactions Costs from Divestiture	$ 192