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Discontinued Operations Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Jan. 03, 2017
Park and HGV spin-offs [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Distribution of spin-off companies stock to Hilton stockholders   100.00%
Park and HGV spin-offs [Member] | Transition Services Agreement [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Discontinued operation, period of continuing involvement after disposal 2 years  
Park spin-off [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Park common stock distributed for every five shares of Hilton common stock   1
Hilton common stock to receive spin-off company common stock   5
Base management fee rate 3.00%  
Incentive management fee rate 6.00%  
Park spin-off [Member] | Management and franchise [member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Revenues from discontinued operations after disposal $ 157  
Park spin-off [Member] | Other revenue from managed and franchised properties [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Revenues from discontinued operations after disposal $ 1,197  
HGV spin-off [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Hilton common stock to receive spin-off company common stock   10
HGV common stock distributed for every ten shares of Hilton common stock   1
Discontinued operation, period of continuing involvement after disposal 100 years  
Royalty fee rate 5.00%  
Revenues from discontinued operations after disposal $ 87