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Consolidated Variable Interest Entities and Investments in Affiliates - Schedule of Investments in Affiliates (Detail) - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]    
Investments in affiliates $ 87 $ 84
Hilton Berlin [Member]    
Schedule Of Equity Method Investments [Line Items]    
Ownership Percentage [1] 40.00%  
Investments in affiliates [1] $ 35 33
Hilton San Diego Bayfront [Member]    
Schedule Of Equity Method Investments [Line Items]    
Ownership Percentage 25.00%  
Investments in affiliates $ 21 20
All others (7 hotels) [Member]    
Schedule Of Equity Method Investments [Line Items]    
Investments in affiliates $ 31 $ 31
All others (7 hotels) [Member] | Minimum [Member]    
Schedule Of Equity Method Investments [Line Items]    
Ownership Percentage 20.00%  
All others (7 hotels) [Member] | Maximum [Member]    
Schedule Of Equity Method Investments [Line Items]    
Ownership Percentage 50.00%  
[1] In April 2018, we and the other owners of the entities that own the Hilton Berlin, entered into an agreement to sell the ownership interest in these entities for a gross sales price of 297 million euros, which is subject to customary pro rations and adjustments. The buyers provided a cash deposit of 30 million euros, which is held in escrow as earnest money.