Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 4,977	$ 4,960	$ 4,770	$ 4,991
Other comprehensive (loss)/income, net of tax	59	(6)	122	(12)
Ending balance	5,398	5,234	5,398	5,234
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(877)	(845)	(940)	(839)
Other comprehensive (loss)/income, net of tax	59	(6)	122	(12)
Ending balance	(818)	(851)	(818)	(851)
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			89	85
Other comprehensive (loss)/income, net of tax			(17)	(5)
Ending balance	72	80	72	80
Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			62	18
Other comprehensive (loss)/income, net of tax			(101)	(5)
Ending balance	(39)	13	(39)	13
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(1,091)	(944)
Other comprehensive (loss)/income, net of tax			240	(2)
Ending balance	(851)	(946)	(851)	(946)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			0	2
Other comprehensive (loss)/income, net of tax			0	0
Ending balance	$ 0	$ 2	$ 0	$ 2