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Acquisitions - Additional Information (Detail)
AUD in Millions, $ in Millions
1 Months Ended 3 Months Ended
Mar. 07, 2017
USD ($)
Room
Feb. 16, 2017
USD ($)
Room
Mar. 31, 2017
USD ($)
Oct. 31, 2016
USD ($)
Apartment
Oct. 31, 2016
AUD
Apartment
Jul. 31, 2016
USD ($)
Mar. 31, 2018
USD ($)
Room
Key Bridge Marriott              
Business Acquisition [Line Items]              
Payments to purchase ground lease | $           $ 54  
Hilton Melbourne South Wharf              
Business Acquisition [Line Items]              
Other asset acquisition       $ 4 AUD 5    
Hilton Melbourne South Wharf | Apartment              
Business Acquisition [Line Items]              
Number of rooms/apartment | Apartment       8 8    
W Hollywood Hotel              
Business Acquisition [Line Items]              
Number of rooms/apartment | Room 305            
Acquisition purchase price | $ $ 219            
The Don CeSar Hotel and Beach House Suites              
Business Acquisition [Line Items]              
Number of rooms/apartment | Room   347          
Acquisition purchase price | $   $ 214          
Miami Marriott Biscayne Bay              
Business Acquisition [Line Items]              
Payments to purchase ground lease | $     $ 38        
Andaz Maui | Scenario Forecast              
Business Acquisition [Line Items]              
Number of rooms/apartment | Room             301
Grand Hyatt San Francisco | Scenario Forecast              
Business Acquisition [Line Items]              
Number of rooms/apartment | Room             668
Hyatt Regency Coconut Point | Scenario Forecast              
Business Acquisition [Line Items]              
Number of rooms/apartment | Room             454
Andaz Maui, Grand Hyatt San Francisco, and Hyatt Regency Coconut Point | Scenario Forecast              
Business Acquisition [Line Items]              
Acquisition purchase price | $             $ 1,000