Long-Term Debt - Schedule of Interest Expense, Net and Other (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Debt Disclosure [Abstract]
Debt	$ 115	$ 119	$ 228	$ 232
Finance lease obligations	5	5	10	10
Amortization of deferred financing costs and debt issuance discount	6	6	13	12
Interest income	0	(2)	(1)	(7)
Interest expense, net	126	128	250	247
Cross-currency rate swaps | Derivatives designated as net investment hedges
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Gain (loss) reclassified to earnings, net investment hedge	$ 11	$ 20	$ 23	$ 41