Revenue (Tables)

6 Months Ended

Jun. 30, 2019

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:

	Three Months Ended				Six Months Ended
	June 30, 2019		July 1, 2018		June 30, 2019		July 1, 2018
Revenue	$	72	$	91	$	168	$	206
Operating earnings	71		83		139		180
Diluted earnings per share	$	0.19	$	0.22	$	0.38	$	0.47

Revenue by Major Product Line

Revenue by major products and services was as follows:

	Three Months Ended				Six Months Ended
	June 30, 2019		July 1, 2018		June 30, 2019		July 1, 2018
Aircraft manufacturing and     completions	$	1,597	$	1,362	$	3,288	$	2,728
Aircraft services	537		531		1,044		982
Pre-owned aircraft	2		2		44		10
Total Aerospace	2,136		1,895		4,376		3,720
Military vehicles	1,090		990		2,224		1,946
Weapons systems, armament and     munitions	461		443		862		826
Engineering and other services	108		101		209		202
Total Combat Systems	1,659		1,534		3,295		2,974
IT services	2,158		2,442		4,327		3,580
Total Information Technology	2,158		2,442		4,327		3,580
C4ISR solutions	1,277		1,147		2,435		2,245
Total Mission Systems	1,277		1,147		2,435		2,245
Nuclear-powered submarines	1,538		1,438		2,915		2,734
Surface ships	528		473		974		956
Repair and other services	259		257		494		512
Total Marine Systems	2,325		2,168		4,383		4,202
Total revenue	$	9,555	$	9,186	$	18,816	$	16,721

Revenue by Contract Type

Revenue by contract type was as follows:

Three Months Ended June 30, 2019	Aerospace		Combat Systems		Information Technology		Mission Systems		Marine Systems		Total Revenue
Fixed-price	$	1,925	$	1,427	$	875	$	752	$	1,575	$	6,554
Cost-reimbursement	—		221		858		484		745		2,308
Time-and-materials	211		11		425		41		5		693
Total revenue	$	2,136	$	1,659	$	2,158	$	1,277	$	2,325	$	9,555
Three Months Ended July 1, 2018
Fixed-price	$	1,696	$	1,330	$	1,059	$	658	$	1,372	$	6,115
Cost-reimbursement	—		197		930		451		795		2,373
Time-and-materials	199		7		453		38		1		698
Total revenue	$	1,895	$	1,534	$	2,442	$	1,147	$	2,168	$	9,186

Six Months Ended June 30, 2019	Aerospace		Combat Systems		Information Technology		Mission Systems		Marine Systems		Total Revenue
Fixed-price	$	3,965	$	2,843	$	1,796	$	1,403	$	2,991	$	12,998
Cost-reimbursement	—		432		1,699		947		1,385		4,463
Time-and-materials	411		20		832		85		7		1,355
Total revenue	$	4,376	$	3,295	$	4,327	$	2,435	$	4,383	$	18,816
Six Months Ended July 1, 2018
Fixed-price	$	3,364	$	2,583	$	1,446	$	1,278	$	2,677	$	11,348
Cost-reimbursement	—		376		1,507		891		1,523		4,297
Time-and-materials	356		15		627		76		2		1,076
Total revenue	$	3,720	$	2,974	$	3,580	$	2,245	$	4,202	$	16,721

Revenue by Customer

Revenue by customer was as follows:

Three Months Ended June 30, 2019	Aerospace		Combat Systems		Information Technology		Mission Systems		Marine Systems		Total Revenue
U.S. government:
Department of Defense (DoD)	$	52	$	910	$	926	$	884	$	2,243	$	5,015
Non-DoD	—		3		1,178		133		1		1,315
Foreign Military Sales (FMS)	14		90		4		12		47		167
Total U.S. government	66		1,003		2,108		1,029		2,291		6,497
U.S. commercial	1,242		59		45		39		30		1,415
Non-U.S. government	141		587		5		181		2		916
Non-U.S. commercial	687		10		—		28		2		727
Total revenue	$	2,136	$	1,659	$	2,158	$	1,277	$	2,325	$	9,555
Three Months Ended July 1, 2018
U.S. government:
DoD	$	89	$	660	$	1,024	$	764	$	2,032	$	4,569
Non-DoD	—		3		1,339		130		1		1,473
FMS	19		83		7		14		39		162
Total U.S. government	108		746		2,370		908		2,072		6,204
U.S. commercial	917		58		41		36		91		1,143
Non-U.S. government	143		712		31		161		4		1,051
Non-U.S. commercial	727		18		—		42		1		788
Total revenue	$	1,895	$	1,534	$	2,442	$	1,147	$	2,168	$	9,186

Six Months Ended June 30, 2019	Aerospace		Combat Systems		Information Technology		Mission Systems		Marine Systems		Total Revenue
U.S. government:
DoD	$	175	$	1,703	$	1,850	$	1,668	$	4,218	$	9,614
Non-DoD	—		6		2,370		268		1		2,645
FMS	29		169		9		21		91		319
Total U.S. government	204		1,878		4,229		1,957		4,310		12,578
U.S. commercial	2,571		109		85		74		66		2,905
Non-U.S. government	200		1,288		13		347		4		1,852
Non-U.S. commercial	1,401		20		—		57		3		1,481
Total revenue	$	4,376	$	3,295	$	4,327	$	2,435	$	4,383	$	18,816
Six Months Ended July 1, 2018
U.S. government:
DoD	$	130	$	1,267	$	1,457	$	1,506	$	3,982	$	8,342
Non-DoD	—		4		1,976		248		1		2,229
FMS	35		152		15		21		68		291
Total U.S. government	165		1,423		3,448		1,775		4,051		10,862
U.S. commercial	1,759		116		81		63		144		2,163
Non-U.S. government	153		1,409		51		333		6		1,952
Non-U.S. commercial	1,643		26		—		74		1		1,744
Total revenue	$	3,720	$	2,974	$	3,580	$	2,245	$	4,202	$	16,721