Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 3,646	$ 3,008	$ 2,651
Other comprehensive income (loss), net of income taxes:
Foreign currency translation adjustments	2,918	(75)	(632)
Pension and postretirement plan benefit adjustments	(147)	(90)	(13)
Unrealized gain (loss) on available-for-sale securities	1	1	(1)
Cash flow hedge adjustments	(72)	(113)	0
Total other comprehensive income (loss), net of income taxes	2,700	(277)	(646)
Comprehensive income	$ 6,346	$ 2,731	$ 2,005