Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details)
 12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
May 31, 2018
USD ($)
Loss Contingencies [Line Items]        
Rent expense $ 8,000,000 $ 5,000,000 $ 4,000,000  
Purchase commitments 130,000,000      
La Quinta deferred tax liability, current 205,000,000 0    
Litigation reserves 25,000,000 3,000,000    
Litigation receivable covered by insurance 21,000,000      
Deferred fees receivable 21,000,000 19,000,000    
Contract liabilities $ 273,000,000 248,000,000    
Post-closing credit support, liability       $ 41,000,000
Post-closing credit support, share of incurred losses       0.33
European vacation rental business, life of royalty fee 20 years      
European vacation rental business, royalty fee percentage 1.00%      
Royalty fees $ 5,000,000      
Separation and distribution agreement, assumed share of contingent liability 0.33      
Receivables due from former parent $ 44,000,000      
Affiliated Entity        
Loss Contingencies [Line Items]        
Post-closing credit support (up to)       $ 46,000,000
Post-closing credit support, share of incurred losses       0.67
Receivable for share of escrow deposit released       $ 46,000,000
Post-closing credit support, receivable $ 15,000,000      
Separation and distribution agreement, assumed share of contingent liability 0.67      
Other non-current liabilities        
Loss Contingencies [Line Items]        
Post-closing credit support (up to)       $ 62,000,000
Remaining amount of contingent liability assumed $ 24,000,000      
Receivable        
Loss Contingencies [Line Items]        
Post-closing credit support, receivable 24,000,000      
Other current assets        
Loss Contingencies [Line Items]        
Post-closing credit support, receivable 39,000,000      
Current liabilities        
Loss Contingencies [Line Items]        
Remaining amount of contingent liability assumed 11,000,000      
Maximum        
Loss Contingencies [Line Items]        
Range of possible loss, portion not accrued (up to) 35,000,000      
Wyndham Hotels & Resorts, Inc.        
Loss Contingencies [Line Items]        
Annual cap 26,000,000      
Guarantor obligations, current carrying value 24,000,000 23,000,000    
Guarantor offsetting asset carrying value 11,000,000 12,000,000    
Amortization expense, contingent asset 1,000,000 2,000,000 $ 4,000,000  
Guarantees subject to recapture provisions 46,000,000      
Wyndham Hotels & Resorts, Inc. | Other non-current liabilities        
Loss Contingencies [Line Items]        
Guarantor obligations, current carrying value 15,000,000 16,000,000    
Wyndham Hotels & Resorts, Inc. | Accrued expenses        
Loss Contingencies [Line Items]        
Guarantor obligations, current carrying value 9,000,000 7,000,000    
Wyndham Hotels & Resorts, Inc. | Other non-current assets        
Loss Contingencies [Line Items]        
Guarantor offsetting asset carrying value 10,000,000 11,000,000    
Guarantees subject to recapture provisions 45,000,000 41,000,000    
Wyndham Hotels & Resorts, Inc. | Other current assets        
Loss Contingencies [Line Items]        
Guarantor offsetting asset carrying value 1,000,000 1,000,000    
Guarantees subject to recapture provisions $ 1,000,000      
Wyndham Hotels & Resorts, Inc. | Minimum        
Loss Contingencies [Line Items]        
Guarantor obligations, term 9      
Guarantees, remaining life 4 years      
Wyndham Hotels & Resorts, Inc. | Maximum        
Loss Contingencies [Line Items]        
Guarantor obligations, term 10      
Annual cap $ 103,000,000      
Guarantees, remaining life 5 years      
Wyndham Hotels & Resorts, Inc. | Weighted Average        
Loss Contingencies [Line Items]        
Guarantor obligations, term 4      
Technology Equipment        
Loss Contingencies [Line Items]        
Purchase commitments $ 89,000,000      
Management Fee        
Loss Contingencies [Line Items]        
Contract liabilities 21,000,000 $ 19,000,000    
Hotel Management Guarantee Expense [Member] | Wyndham Hotels & Resorts, Inc.        
Loss Contingencies [Line Items]        
Hotel Management Guarantee Expenses $ 4,000,000