Contract Asset and Liability (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Revenue from contract with customer [Line Items]
Contract assets	$ 13,104		$ 12,139
Contract liabilities	(17,119)		(17,183)
Net contract liabilities	(4,015)		(5,044)
Contract with Customer, Asset, Change	965
Contract with Customer, Liability, Revenue Recognized	2,600	$ 1,900
Advances received to date on contracts related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	405
Contract with Customer, Asset, Allowance for Credit Loss	$ 194		$ 197