Segment Information (Unaudited) Reconciliation to Consolidated Operating Income (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Sales	$ 8,801	$ 9,151	$ 17,598	$ 18,308
Operating income	954	1,044	1,851	3,866
Pre-tax gain on sale of business				2,000
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	1,073	1,117	2,110	2,212
Operating Segments [Member] | Aeronautics Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,534	2,913	5,237	5,903
Operating income	258	300	565	608
Operating Segments [Member] | Defense Systems [Member]
Segment Reporting Information [Line Items]
Sales	1,294	1,427	2,577	2,989
Operating income	168	177	323	354
Operating Segments [Member] | Mission Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,516	2,588	5,013	5,177
Operating income	413	408	798	805
Operating Segments [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,979	2,748	5,834	5,269
Operating income	310	301	571	577
Intersegment sales
Segment Reporting Information [Line Items]
Sales	522	525	1,063	1,030
Operating income	76	69	147	132
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
FAS/CAS operating adjustment	(51)	18	(97)	37
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating income	$ (68)	$ (91)	$ (162)	$ 1,617