Revenue (Tables)

12 Months Ended

Dec. 31, 2018

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	2018		2017		2016
Revenue	$	377	$	292	$	95
Operating earnings	345		323		16
Diluted earnings per share	$	0.91	$	0.69	$	0.03

Schedule of Revenue by Major Products and Services

Revenue by major products and services was as follows:

Year Ended December 31	2018		2017		2016
Aircraft manufacturing and completions	$	6,226	$	6,320	$	6,074
Aircraft services	2,096		1,743		1,625
Pre-owned aircraft	133		66		116
Total Aerospace	8,455		8,129		7,815
Military vehicles	4,027		3,731		3,378
Weapons systems, armament and munitions	1,798		1,633		1,517
Engineering and other services	416		585		635
Total Combat Systems	6,241		5,949		5,530
IT services	8,269		4,410		4,428
Total Information Technology	8,269		4,410		4,428
C4ISR solutions	4,726		4,481		4,716
Total Mission Systems	4,726		4,481		4,716
Nuclear-powered submarines	5,712		5,175		5,264
Surface ships	1,872		1,607		1,648
Repair and other services	918		1,222		1,160
Total Marine Systems	8,502		8,004		8,072
Total revenue	$	36,193	$	30,973	$	30,561

Schedule of Revenue by Contract Type

Revenue by contract type was as follows:

Year Ended December 31, 2018	Aerospace		Combat Systems		Information Technology		Mission Systems		Marine Systems		Total Revenue
Fixed-price	$	7,600	$	5,406	$	3,396	$	2,711	$	5,493	$	24,606
Cost-reimbursement	—		800		3,422		1,861		3,004		9,087
Time-and-materials	855		35		1,451		154		5		2,500
Total revenue	$	8,455	$	6,241	$	8,269	$	4,726	$	8,502	$	36,193
Year Ended December 31, 2017
Fixed-price	$	7,479	$	5,090	$	1,465	$	2,478	$	4,808	$	21,320
Cost-reimbursement	—		823		2,305		1,838		3,186		8,152
Time-and-materials	650		36		640		165		10		1,501
Total revenue	$	8,129	$	5,949	$	4,410	$	4,481	$	8,004	$	30,973
Year Ended December 31, 2016
Fixed-price	$	7,208	$	4,629	$	1,514	$	2,737	$	4,857	$	20,945
Cost-reimbursement	—		865		2,262		1,822		3,204		8,153
Time-and-materials	607		36		652		157		11		1,463
Total revenue	$	7,815	$	5,530	$	4,428	$	4,716	$	8,072	$	30,561

Schedule of Revenue by Customer

Revenue by customer was as follows:

Year Ended December 31, 2018	Aerospace		Combat Systems		Information Technology		Mission Systems		Marine Systems		Total Revenue
U.S. government:
Department of Defense (DoD)	$	236	$	2,903	$	3,291	$	3,224	$	8,098	$	17,752
Non-DoD	—		8		4,712		506		2		5,228
Foreign Military Sales (FMS)	98		317		22		44		145		626
Total U.S. government	334		3,228		8,025		3,774		8,245		23,606
U.S. commercial	4,175		251		163		138		245		4,972
Non-U.S. government	551		2,698		81		662		10		4,002
Non-U.S. commercial	3,395		64		—		152		2		3,613
Total revenue	$	8,455	$	6,241	$	8,269	$	4,726	$	8,502	$	36,193
Year Ended December 31, 2017
U.S. government:
DoD	$	189	$	2,702	$	1,802	$	3,027	$	7,721	$	15,441
Non-DoD	—		8		2,340		556		—		2,904
FMS	42		374		22		46		192		676
Total U.S. government	231		3,084		4,164		3,629		7,913		19,021
U.S. commercial	3,885		220		214		108		71		4,498
Non-U.S. government	210		2,580		32		607		13		3,442
Non-U.S. commercial	3,803		65		—		137		7		4,012
Total revenue	$	8,129	$	5,949	$	4,410	$	4,481	$	8,004	$	30,973
Year Ended December 31, 2016
U.S. government:
DoD	$	231	$	2,274	$	1,781	$	3,287	$	7,507	$	15,080
Non-DoD	—		7		2,343		525		8		2,883
FMS	130		333		23		25		202		713
Total U.S. government	361		2,614		4,147		3,837		7,717		18,676
U.S. commercial	3,501		287		259		108		329		4,484
Non-U.S. government	496		2,520		8		613		26		3,663
Non-U.S. commercial	3,457		109		14		158		—		3,738
Total revenue	$	7,815	$	5,530	$	4,428	$	4,716	$	8,072	$	30,561