Segment Information Reconciliation to Consolidated Operating Income (Details 1) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Number of reportable segments	4
Sales	$ 36,602	$ 35,667	$ 36,799
Operating income	3,601	5,651	4,065
Operating Segments
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Operating income	4,253	4,217	4,188
Operating Segments | Aeronautics Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	10,531	11,259	12,169
Operating income	1,116	1,093	1,206
Operating Segments | Defense Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	5,579	5,776	7,543
Operating income	664	696	846
Operating Segments | Mission Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	10,396	10,134	10,080
Operating income	1,618	1,579	1,459
Operating Segments | Space Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	12,275	10,608	8,744
Operating income	1,158	1,121	893
Intersegment sales
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	2,179	2,110	1,737
Operating income	303	272	216
Intersegment sales | Aeronautics Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	239	189	122
Operating income	27	19	11
Intersegment sales | Defense Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	806	789	728
Operating income	95	89	76
Intersegment sales | Mission Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	1,015	993	779
Operating income	167	150	116
Intersegment sales | Space Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	119	139	108
Operating income	14	14	13
Corporate, Non-Segment [Member]
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Operating income	(452)	1,304	(541)
Segment Reconciling Items [Member]
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
FAS/CAS Operating Adjustment	$ (200)	$ 130	$ 418