Segment Information (Unaudited) Reconciliation to Consolidated Operating Income (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Sales	$ 9,576	$ 8,801	$ 18,877	$ 17,598
Operating income	967	954	1,914	1,851
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	1,052	1,073	2,054	2,110
Operating Segments [Member] | Aeronautics Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,595	2,534	5,110	5,237
Operating income	278	258	515	565
Operating Segments [Member] | Defense Systems [Member]
Segment Reporting Information [Line Items]
Sales	1,420	1,294	2,796	2,577
Operating income	166	168	326	323
Operating Segments [Member] | Mission Systems [Member]
Segment Reporting Information [Line Items]
Sales	2,641	2,516	5,204	5,013
Operating income	401	413	761	798
Operating Segments [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Sales	3,488	2,979	6,838	5,834
Operating income	283	310	596	571
Intersegment sales
Segment Reporting Information [Line Items]
Sales	568	522	1,071	1,063
Operating income	76	76	144	147
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
FAS/CAS operating adjustment	(21)	(51)	(42)	(97)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating income	$ (64)	$ (68)	$ (98)	$ (162)