Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Revenue Recognition [Abstract]

Schedule of Impact of Adjustments in Contract Estimates

The aggregate impact of adjustments in contract estimates increased our revenue, operating earnings and diluted earnings per share as follows:

Year Ended December 31	2020		2019		2018
Revenue	$	389	$	342	$	377
Operating earnings	283		271		345
Diluted earnings per share	$	0.78	$	0.74	$	0.91

Schedule of Revenue by Major Products and Services

Revenue by major products and services was as follows:

Year Ended December 31	2020		2019		2018
Aircraft manufacturing	$	6,115	$	7,541	$	6,262
Aircraft services and completions	1,960		2,260		2,193
Total Aerospace	8,075		9,801		8,455
Nuclear-powered submarines	6,938		6,254		5,712
Surface ships	2,055		1,912		1,872
Repair and other services	986		1,017		918
Total Marine Systems	9,979		9,183		8,502
Military vehicles	4,687		4,620		4,027
Weapons systems, armament and munitions	1,991		1,906		1,798
Engineering and other services	545		481		416
Total Combat Systems	7,223		7,007		6,241
Information technology (IT) services	7,892		8,422		8,269
C4ISR* solutions	4,756		4,937		4,726
Total Technologies	12,648		13,359		12,995
Total revenue	$	37,925	$	39,350	$	36,193

*Command, control, communications, computers, intelligence, surveillance and reconnaissance

Schedule of Revenue by Contract Type

Revenue by contract type was as follows:

Year Ended December 31, 2020	Aerospace		Marine Systems		Combat Systems		Technologies		Total Revenue
Fixed-price	$	7,402	$	6,924	$	6,159	$	5,794	$	26,279
Cost-reimbursement	—		3,045		997		5,300		9,342
Time-and-materials	673		10		67		1,554		2,304
Total revenue	$	8,075	$	9,979	$	7,223	$	12,648	$	37,925
Year Ended December 31, 2019
Fixed-price	$	8,949	$	6,331	$	6,049	$	6,344	$	27,673
Cost-reimbursement	—		2,839		894		5,263		8,996
Time-and-materials	852		13		64		1,752		2,681
Total revenue	$	9,801	$	9,183	$	7,007	$	13,359	$	39,350
Year Ended December 31, 2018
Fixed-price	$	7,600	$	5,493	$	5,406	$	6,107	$	24,606
Cost-reimbursement	—		3,004		800		5,283		9,087
Time-and-materials	855		5		35		1,605		2,500
Total revenue	$	8,455	$	8,502	$	6,241	$	12,995	$	36,193

Schedule of Revenue by Customer

Revenue by customer was as follows:

Year Ended December 31, 2020	Aerospace		Marine Systems		Combat Systems		Technologies		Total Revenue
U.S. government:
Department of Defense (DoD)	$	394	$	9,656	$	3,813	$	6,977	$	20,840
Non-DoD	—		9		12		4,705		4,726
Foreign Military Sales (FMS)	119		206		366		46		737
Total U.S. government	513		9,871		4,191		11,728		26,303
U.S. commercial	4,268		97		254		272		4,891
Non-U.S. government	221		9		2,704		551		3,485
Non-U.S. commercial	3,073		2		74		97		3,246
Total revenue	$	8,075	$	9,979	$	7,223	$	12,648	$	37,925
Year Ended December 31, 2019
U.S. government:
DoD	$	305	$	8,837	$	3,695	$	7,027	$	19,864
Non-DoD	88		2		13		5,151		5,254
FMS	105		188		340		56		689
Total U.S. government	498		9,027		4,048		12,234		25,807
U.S. commercial	5,270		142		229		327		5,968
Non-U.S. government	399		9		2,663		673		3,744
Non-U.S. commercial	3,634		5		67		125		3,831
Total revenue	$	9,801	$	9,183	$	7,007	$	13,359	$	39,350
Year Ended December 31, 2018
U.S. government:
DoD	$	236	$	8,098	$	2,903	$	6,437	$	17,674
Non-DoD	—		2		8		5,296		5,306
FMS	98		145		317		66		626
Total U.S. government	334		8,245		3,228		11,799		23,606
U.S. commercial	3,983		245		251		301		4,780
Non-U.S. government	546		10		2,698		743		3,997
Non-U.S. commercial	3,592		2		64		152		3,810
Total revenue	$	8,455	$	8,502	$	6,241	$	12,995	$	36,193