Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 31,978	$ 32,586	$ 31,672	$ 33,070
Total other comprehensive (loss) income	(389)	215	(301)	57
Balance at end of period	31,809	32,532	31,809	32,532
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(640)	(536)	(745)	(387)
Other comprehensive income (loss) before reclassifications	(369)	211	(267)	60
Amounts reclassified from accumulated other comprehensive loss	4	2	7	4
Total other comprehensive (loss) income	(365)	213	(260)	64
Balance at end of period	(1,005)	(323)	(1,005)	(323)
Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(105)	(118)	(107)	(121)
Other comprehensive income (loss) before reclassifications	(6)	0	(7)	1
Amounts reclassified from accumulated other comprehensive loss	4	2	7	4
Total other comprehensive (loss) income	(2)	2	0	5
Balance at end of period	(107)	(116)	(107)	(116)
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(572)	(407)	(676)	(254)
Other comprehensive income (loss) before reclassifications	(361)	211	(257)	58
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Total other comprehensive (loss) income	(361)	211	(257)	58
Balance at end of period	(933)	(196)	(933)	(196)
Pension Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	37	(11)	38	(12)
Other comprehensive income (loss) before reclassifications	(2)	0	(3)	1
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Total other comprehensive (loss) income	(2)	0	(3)	1
Balance at end of period	$ 35	$ (11)	$ 35	$ (11)