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Commitments and Contingencies - Additional Information (Details)
$ in Millions
9 Months Ended
Sep. 30, 2018
USD ($)
Sep. 30, 2017
Hotel
Other Commitments [Line Items]    
Purchase commitment, remaining minimum amount committed | $ $ 31  
Hurricanes Irma and Maria [Member]    
Other Commitments [Line Items]    
Total loss recognized, representing losses up to the amount of deductibles | $ $ 16  
Key West [Member] | Hurricanes Irma and Maria [Member]    
Other Commitments [Line Items]    
Number of hotels sustained damage | Hotel   2
Caribe Hilton [Member] | Hurricanes Irma and Maria [Member]    
Other Commitments [Line Items]    
Number of hotels sustained damage | Hotel   1