Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) Hotel	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Summary of Significant Accounting Policies [Line Items]
Number of reporting units to which goodwill has allocated | Hotel		2
Goodwill impairment loss	$ 607,000,000	$ 607,000,000
Advance deposit balance		46,000,000	$ 98,000,000
Provision for U.S federal income taxes		$ (6,000,000)	35,000,000	$ 23,000,000
Income tax benefit recognized in financial statements measured as largest amount of benefit that is greater than percentage value of being realized upon settlement		50.00%
REIT [Member] | U.S. Federal Tax [Member]
Summary of Significant Accounting Policies [Line Items]
Provision for U.S federal income taxes		$ 0	$ 0	$ 0
Impairment Loss and Casualty (Gain) Loss, Net [Member]
Summary of Significant Accounting Policies [Line Items]
Goodwill impairment loss	$ 607,000,000
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Percentage of ownership for consolidate entity		50.00%
Buildings and Improvements [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful life		8 years
Buildings and Improvements [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful life		40 years
Furniture and Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful life		3 years
Furniture and Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful life		8 years
Computer Equipment and Acquired Software [Member]
Summary of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful life		3 years