Segment Information (Unaudited) Reconciliation to Consolidated Operating Income (Details 1) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Sales	$ 8,971	$ 8,720	$ 26,569	$ 27,028
Operating income	844	1,043	2,695	4,909
Pre-tax gain on sale of business				2,000
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	1,007	1,035	3,117	3,247
Operating Segments [Member] | Aeronautics Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,537	2,725	7,774	8,628
Operating income	262	265	827	873
Operating Segments [Member] | Defense Systems [Member]
Segment Reporting Information [Line Items]
Sales	1,345	1,409	3,922	4,398
Operating income	158	175	481	529
Operating Segments [Member] | Mission Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,456	2,436	7,469	7,613
Operating income	368	372	1,166	1,177
Operating Segments [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Sales	3,163	2,681	8,997	7,950
Operating income	290	288	861	865
Intersegment sales
Segment Reporting Information [Line Items]
Sales	530	531	1,593	1,561
Operating income	71	65	218	197
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
FAS/CAS operating adjustment	(55)	61	(152)	98
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating income	$ (108)	$ (53)	$ (270)	$ 1,564