Derivative Instruments - Schedule of Cash Flow Hedges included in AOCI (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 31,235	$ 33,256
Ending balance	31,288	33,473
Unrealized Gain (Loss) on Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	92
Change in fair value, net of tax	(10)
Reclassification into earnings, net of tax	1
Ending balance	83
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(403)
Change in fair value, net of tax	(33)
Reclassification into earnings, net of tax	1
Ending balance	(435)
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	(5)	1
Change in fair value, net of tax	(9)	5
Reclassification into earnings, net of tax	2	(1)
Ending balance	(12)	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	99
Change in fair value, net of tax	(1)	0
Reclassification into earnings, net of tax	(2)	0
Ending balance	96	99
Net Investment Hedges \| Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(234)	33
Change in fair value, net of tax	69	(59)
Reclassification into earnings, net of tax	1	1
Ending balance	$ (164)	$ (25)