Equity-Based Compensation - Equity-Based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation	$ 11	$ 8	$ 21	$ 15
Equity-based compensation, net of capitalized amounts	10	7	18	12
Unrecognized compensation expense	98		$ 98
Unrecognized compensation expense, period for recognition			2 years 10 months 24 days
Property and Equipment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation capitalized to property and equipment	(1)	(1)	$ (3)	(3)
Class B Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation	0	1	0	1
Restricted Stock Units and Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation	8	5	15	10
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation	2	1	5	3
Class A Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation	$ 1	$ 1	$ 1	$ 1

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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