Contract Asset and Liability (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Apr. 03, 2020	Dec. 31, 2019
Revenue from contract with customer [Line Items]
Contract assets	$ 9,943		$ 9,943			$ 4,462
Contract liabilities, current	(11,997)		(11,997)			(9,014)
Contract liabilities, non-current (included within Other long-term liabilities)	(111)		(111)			0
Net contract liabilities	(2,165)		(2,165)			$ (4,552)
Contract with Customer, Asset, Change			5,500
Contract with Customer, Liability, Change			(3,100)
Contract with Customer, Liability, Revenue Recognized	625	$ 587	1,808	$ 1,538
Contract with Customer, Asset, Allowance for Credit Loss	155		155
Total contract value related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	1,200		1,200
Sales recognized for work performed to date related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	50		50		$ 400
Advances received to date on contracts related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	450		450
Net contract assets related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	150		150
Net contract liabilities related to precision guided munitions to certain Middle Eastern customers pending U.S. government approval	150		150
Contract with Customer, Asset, Allowance for Credit Loss, Writeoff	$ 96		106
Raytheon Company [Member]
Revenue from contract with customer [Line Items]
Contract with Customer, Asset, Change			5,400
Contract with Customer, Liability, Change			(3,200)
COVID-19 [Member]
Revenue from contract with customer [Line Items]
Contract with Customer, Asset, Credit Loss Expense (Reversal)			$ 108