Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) - USD ($)
 1 Months Ended 3 Months Ended
Jan. 31, 2018
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Loss Contingencies [Line Items]        
Litigation reserves   $ 3,000,000   $ 3,000,000
La Quinta Holdings Inc.        
Loss Contingencies [Line Items]        
Business acquisition, consideration $ 1,950,000,000      
La Quinta Holdings Inc. | Bridge Term Loan Facility | Bridge Loan        
Loss Contingencies [Line Items]        
Maximum borrowing capacity $ 2,000,000,000      
Debt term 364 days      
Maximum        
Loss Contingencies [Line Items]        
Range of possible loss, portion not accrued (up to)   12,000,000    
Wyndham Hotels And Resorts        
Loss Contingencies [Line Items]        
Annual cap   27,000,000    
Guarantor obligations, current carrying value   21,000,000   23,000,000
Guarantor offsetting asset carrying value   11,000,000   12,000,000
Amortization expense, contingent asset (less than in 2018)   1,000,000 $ 1,000,000  
Guarantees subject to recapture provisions   46,000,000    
Wyndham Hotels And Resorts | Other non-current liabilities        
Loss Contingencies [Line Items]        
Guarantor obligations, current carrying value   16,000,000   16,000,000
Wyndham Hotels And Resorts | Accrued expenses        
Loss Contingencies [Line Items]        
Guarantor obligations, current carrying value   5,000,000   7,000,000
Wyndham Hotels And Resorts | Other non-current assets        
Loss Contingencies [Line Items]        
Guarantor offsetting asset carrying value   10,000,000   1,000,000
Guarantees subject to recapture provisions   43,000,000   41,000,000
Wyndham Hotels And Resorts | Other current assets        
Loss Contingencies [Line Items]        
Guarantor offsetting asset carrying value   1,000,000   $ 11,000,000
Guarantees subject to recapture provisions   $ 3,000,000    
Wyndham Hotels And Resorts | Minimum        
Loss Contingencies [Line Items]        
Guarantor obligations, term (in years)   eight    
Guarantees, remaining life   5 years    
Wyndham Hotels And Resorts | Maximum        
Loss Contingencies [Line Items]        
Guarantor obligations, term (in years)   10    
Guarantees, remaining life   7 years    
Annual cap   $ 110,000,000    
Wyndham Hotels And Resorts | Weighted Average        
Loss Contingencies [Line Items]        
Guarantor obligations, term (in years)   five