Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 3,257	$ 3,167	$ 3,484
(Losses) gains on cash flow hedges	(174)	366	97
Foreign currency translation adjustments	(103)	353	186
Change in retirement plans’ funded status	2,365	(453)	(857)
Other comprehensive income (loss), pretax	2,088	266	(574)
(Provision) benefit for income tax, net	(458)	2	156
Other comprehensive income (loss), net of tax	1,630	268	(418)
Comprehensive income	$ 4,887	$ 3,435	$ 3,066