Accumulated Other Comprehensive Income - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ (781)	$ (700)	$ (802)	$ (673)
Ending balance	(675)	(812)	(675)	(812)
Foreign Exchange Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(115)	(56)	(110)	(27)
Other comprehensive (loss) income before reclassifications	43	(59)	38	(88)
Income tax benefit (expense) associated with comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Ending balance	(72)	(115)	(72)	(115)
Pension Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(16)	(15)	(16)	(15)
Other comprehensive (loss) income before reclassifications	0	0	0	0
Income tax benefit (expense) associated with comprehensive income (loss) before reclassifications	0	0	0	0
Ending balance	(16)	(15)	(16)	(15)
Changes in Fair Value of Effective Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	8	(8)	(6)	(10)
Other comprehensive (loss) income before reclassifications	(11)	29	(7)	46
Income tax benefit (expense) associated with comprehensive income (loss) before reclassifications	0	24	(3)	26
Amounts reclassified from AOCI	11	(41)	26	(60)
Income taxes associated with reclassifications from AOCI	(1)	5	(3)	7
Ending balance	7	9	7	9
Changes in Fair Value of Net Investment Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	25	90	(6)	125
Other comprehensive (loss) income before reclassifications	3	(133)	42	(177)
Income tax benefit (expense) associated with comprehensive income (loss) before reclassifications	(1)	5	(9)	14
Ending balance	27	(38)	27	(38)
Accumulated Other Comprehensive (Loss) / Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(98)	11	(138)	73
Ending balance	$ (54)	$ (159)	$ (54)	$ (159)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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