Segment Information Reconciliation to Consolidated Operating Income (Details 1) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Number of reportable segments	4
Sales	$ 39,290	$ 36,602	$ 35,667
Operating income	2,537	3,601	5,651
Operating Segments
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Operating income	2,760	4,253	4,217
Operating Segments | Aeronautics Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	10,786	10,531	11,259
Operating income	(473)	1,116	1,093
Operating Segments | Defense Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	5,862	5,579	5,776
Operating income	710	664	696
Operating Segments | Mission Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	10,895	10,396	10,134
Operating income	1,609	1,618	1,579
Operating Segments | Space Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	13,946	12,275	10,608
Operating income	1,212	1,158	1,121
Intersegment sales
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	2,199	2,179	2,110
Operating income	298	303	272
Intersegment sales | Aeronautics Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	240	239	189
Operating income	22	27	19
Intersegment sales | Defense Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	798	806	789
Operating income	97	95	89
Intersegment sales | Mission Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	1,054	1,015	993
Operating income	167	167	150
Intersegment sales | Space Systems
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Sales	107	119	139
Operating income	12	14	14
Corporate, Non-Segment [Member]
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
Operating income	(141)	(452)	1,304
Segment Reconciling Items [Member]
Sales and Service Revenues by Segment (Table Amounts) [Abstract]
FAS/CAS Operating Adjustment	$ (82)	$ (200)	$ 130