Derivative Instruments - Schedule of Cash Flow Hedges included in AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 33,496	$ 34,970	$ 33,256	$ 34,300
Ending balance	33,238	34,086	33,238	34,086
Unrealized Gain (Loss) on Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance			98
Change in fair value, net of tax			(1)
Reclassification into earnings, net of tax			(4)
Ending balance	93		93
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance			(609)
Change in fair value, net of tax			87
Reclassification into earnings, net of tax			3
Ending balance	(519)		(519)
Cash Flow Hedges | Unrealized Gain (Loss) on Cash Flow Hedges | Foreign exchange forward contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	4	5	1	5
Change in fair value, net of tax	(8)	3	(1)	8
Reclassification into earnings, net of tax	(1)	(3)	(5)	(8)
Ending balance	(5)	5	(5)	5
Cash Flow Hedges | Unrealized Gain (Loss) on Cash Flow Hedges | Interest rate swap contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	99	100	99	84
Change in fair value, net of tax	0	0	0	16
Reclassification into earnings, net of tax	0	0	0	0
Ending balance	99	100	99	100
Net Investment Hedges | Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(283)	14	33	(21)
Change in fair value, net of tax	24	(79)	(294)	(46)
Reclassification into earnings, net of tax	1	1	3	3
Ending balance	$ (258)	$ (64)	$ (258)	$ (64)