Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 4,991	$ 4,403
Other comprehensive income/(loss), net of tax	(2)	(11)
Ending balance	5,052	4,491
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(839)	(817)
Other comprehensive income/(loss), net of tax	(2)	(11)
Ending balance	(841)	(828)
Derivatives Net Unrealized Gains/ (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	85	90
Other comprehensive income/(loss), net of tax	0	(2)
Ending balance	85	88
Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	18	41
Other comprehensive income/(loss), net of tax	16	(6)
Ending balance	34	35
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(944)	(944)
Other comprehensive income/(loss), net of tax	(18)	(7)
Ending balance	(962)	(951)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	2	(4)
Other comprehensive income/(loss), net of tax	0	4
Ending balance	$ 2	$ 0