Basis of Presentation (Unaudited) EAC Change (Details 6) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Change in Accounting Estimate [Line Items]
Operating income	$ 954	$ 1,044	$ 1,851	$ 3,866
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating income	92	$ 154	$ 265	$ 344
Restricted Program [Member] | Contracts Accounted for under Percentage of Completion [Member] | Aeronautics Systems [Member]
Change in Accounting Estimate [Line Items]
Operating income	$ 67