Stockholders' Equity - Accumulated other comprehensive income/ (loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (817)
Other comprehensive gain/(loss), net of tax	(22)	$ (53)	$ (34)
Ending balance	(839)	(817)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	4,991	4,403	4,544	$ 3,773
Accumulated Other Comprehensive (Loss)/ Income
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Other comprehensive gain/(loss), net of tax	(22)	(53)	(34)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(839)	(817)	(764)	(730)
Derivatives Net Unrealized Losses
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Other comprehensive gain/(loss), net of tax	(5)	86	19
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	85	90	4	$ (15)
Accumulated Other Comprehensive Income (Loss), Derivative Qualifying as Hedge, Excluded Component, Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	41	5	(37)
Other comprehensive gain/(loss), net of tax	(23)	36	42
Ending balance	18	41	5
Currency Translation Adjustment, Net Unrealized Losses
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(944)	(756)	(655)
Other comprehensive gain/(loss), net of tax	0	(188)	(101)
Ending balance	(944)	(944)	(756)
Benefit Plans, Actuarial Gains/ (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(4)	(17)	(23)
Other comprehensive gain/(loss), net of tax	6	13	6
Ending balance	$ 2	$ (4)	$ (17)