Equity - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 2,107	$ 571
Other comprehensive (loss) income before reclassifications	61
Reclassifications from accumulated other comprehensive income (loss) to net earnings	(2)
Net other comprehensive (loss) income	59
Ending Balance	39,781	1,098
Pension and other postretirement benefit plans, tax	(1)	(4)
Accumulated Other Comprehensive Loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(841)	(637)
Ending Balance	(782)	$ (648)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(336)
Other comprehensive (loss) income before reclassifications	(26)
Reclassifications from accumulated other comprehensive income (loss) to net earnings	0
Net other comprehensive (loss) income	(26)
Ending Balance	(362)
Pension and Postretirement Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(305)
Other comprehensive (loss) income before reclassifications	5
Reclassifications from accumulated other comprehensive income (loss) to net earnings	(1)
Net other comprehensive (loss) income	4
Ending Balance	(301)
Pension and other postretirement benefit plans, tax	1
Unrealized Gain (Loss) on Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(200)
Other comprehensive (loss) income before reclassifications	82
Reclassifications from accumulated other comprehensive income (loss) to net earnings	(1)
Net other comprehensive (loss) income	81
Ending Balance	$ (119)