Basis of Presentation (Unaudited) EAC Change (Details 6) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Change in Accounting Estimate [Line Items]
Operating income	$ 967	$ 954		$ 1,914	$ 1,851
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating income	76	$ 92		$ 122	$ 265
Restricted Program [Member] | Contracts Accounted for under Percentage of Completion [Member] | Aeronautics Systems [Member]
Change in Accounting Estimate [Line Items]
Operating income			$ 67
HALO Program | Contracts Accounted for under Percentage of Completion [Member] | Space Systems [Member]
Change in Accounting Estimate [Line Items]
Operating income	$ 36