Contract Asset and Liability (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Revenue from contract with customer [Line Items]
Contract assets	$ 12,970		$ 12,970		$ 11,534
Contract liabilities	(15,162)		(15,162)		(14,598)
Net contract liabilities	(2,192)		(2,192)		(3,064)
Contract with Customer, Asset, Change			1,436
Contract with Customer, Liability, Change			564
Contract with Customer, Liability, Revenue Recognized	1,500	$ 1,200	3,400	$ 3,000
Advances received to date on contracts related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	405		405
Contract with Customer, Asset, Allowance for Credit Loss	$ 256		$ 256		$ 318