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Related Party Transactions - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Mar. 14, 2018
Mar. 13, 2018
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Sep. 30, 2017
Related Party Transaction [Line Items]                
Equity in earnings from unconsolidated affiliates           $ 1    
Prepaid expenses     $ 18   $ 18 18    
Blackstone                
Related Party Transaction [Line Items]                
Due from related parties               $ 8
Hilton Honors Points | Other Assets                
Related Party Transaction [Line Items]                
Prepaid expenses             $ 58  
Common Stock                
Related Party Transaction [Line Items]                
Issuance of common stock, shares [1]             99,000,000  
Blackstone                
Related Party Transaction [Line Items]                
Common stock sale restricted period   2 years            
Stockholders agreement amendment date   Oct. 24, 2016            
Stock repurchase through exercise of options   2,500,000            
Shares issued price per share   $ 44.75            
Underwriting Agreement                
Related Party Transaction [Line Items]                
Sale of stock completion date Mar. 19, 2018              
Underwriting Agreement | Common Stock                
Related Party Transaction [Line Items]                
Shares issued price per share $ 44.75              
Issuance of common stock, shares 22,250,000              
Stock price per share $ 0.01              
Maximum | Blackstone                
Related Party Transaction [Line Items]                
Sale of stock (in shares)   24,750,000            
Number of shares grant to repurchase   4,340,000            
BRE Ace Holdings                
Related Party Transaction [Line Items]                
Equity in earnings from unconsolidated affiliates         0 1    
Due from related parties     29   $ 29 $ 29    
1776 Holding, LLC                
Related Party Transaction [Line Items]                
Cash contributed to an equity method investment     $ 5 $ 5        
Equity method investment, ownership percentage     50.00%   50.00%      
1776 Holding, LLC | Maximum                
Related Party Transaction [Line Items]                
Equity in earnings from unconsolidated affiliates         $ (1)      
Certain Hilton Wholly Owned Hotels                
Related Party Transaction [Line Items]                
Related party transaction, expenses from transactions with related party             $ 27  
[1] Parent deficit was reclassified and allocated between common stock and additional paid-in capital based on the number of shares issued and outstanding as of the stock split that occurred on January 3, 2017. See Note 1: Organization for further information