Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 5,052	$ 4,491	$ 4,991	$ 4,403
Other comprehensive (loss)/income, net of tax	(4)	(67)	(6)	(78)
Ending balance	4,960	4,621	4,960	4,621
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(841)	(828)	(839)	(817)
Other comprehensive (loss)/income, net of tax	(4)	(67)	(6)	(78)
Ending balance	(845)	(895)	(845)	(895)
Derivatives Net Unrealized Gains/ (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			85	90
Other comprehensive (loss)/income, net of tax			(1)	(3)
Ending balance	84	87	84	87
Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			18	41
Other comprehensive (loss)/income, net of tax			18	(13)
Ending balance	36	28	36	28
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(944)	(944)
Other comprehensive (loss)/income, net of tax			(23)	(66)
Ending balance	(967)	(1,010)	(967)	(1,010)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			2	(4)
Other comprehensive (loss)/income, net of tax			0	4
Ending balance	$ 2	$ 0	$ 2	$ 0