Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 693	$ 391
Other Comprehensive Income (Loss), before Tax
Foreign currency translation adjustment, before tax	294	(241)
Pension and other postretirement benefit liabilities adjustment, before tax	18	4
Deferred gain (loss) on hedging activities, before tax	101	(82)
Unrealized gain (loss) on investments, before tax	(1)	6
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	(56)	(42)
Pension and other postretirement benefit liabilities adjustment, tax effect	(5)	(12)
Deferred gain (loss) on hedging activities, tax effect	(25)	14
Unrealized gain (loss) on investments, tax effect	0	(2)
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	238	(283)
Pension and other postretirement benefit liabilities adjustment, net of tax	13	(8)
Deferred gain (loss) on hedging activities, net of tax	76	(68)
Unrealized gain (loss) on investments, net of tax	(1)	4
Other comprehensive income (loss)	326	(355)
Comprehensive income (loss) including noncontrolling interests	1,019	36
Less: Comprehensive income (loss) attributable to noncontrolling interests	4	4
Comprehensive income (loss) attributable to controlling interests	$ 1,015	$ 32