Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 1,410	$ 1,217	$ 1,553	$ 1,288
Net derivative gain		14		8
Ending balance		1,285	1,269	1,285	1,269
Interest rate derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(7)		(1)
Net derivative gain		21		14
Deferred tax expense on net derivative gain		(6)		(4)
Gain reclassified from AOCL		(2)		(3)
Deferred tax expense on reclassification		1		1
Other comprehensive income (loss)		14		8
Ending balance		7		7
Currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(175)	(203)	(189)	(207)
Currency translation adjustments		10	(10)	24	(6)
Other comprehensive income (loss)		10	(10)	24	(6)
Ending balance		(165)	(213)	(165)	(213)
Defined benefit plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		87	5	88	108
Net actuarial loss arising during year	[1]				(126)
Deferred tax benefit on net actuarial loss					31
Amortization of experience gains				(1)
Defined benefit plan settlement gain					(10)
Deferred tax expense on reclassification					2
Other comprehensive income (loss)				(1)	(103)
Ending balance		87	5	87	5
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(95)	(198)	(102)	(99)
Other comprehensive income (loss)		24	(10)	31	(109)
Ending balance		$ (71)	$ (208)	$ (71)	$ (208)

[1] Net actuarial loss arising during the six months ended June 30, 2022 relates to the interim measurement of the PPPE due to the pension partial settlement transaction and was primarily due to asset returns, partially offset by an increase in the discount rate utilized in measuring plan obligations, reflecting changes in market rates. Refer to Note 10, Employee Benefits, for additional details.