Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.19.2
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
May 14, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grant date fair value (in dollars per share) $ 10.46   $ 10.46      
Separation related costs            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Payment Arrangement, Expense $ 2   $ 4 $ 20    
RSUs            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares)     500,000      
Grant date fair value (in dollars per share) $ 55.90   $ 55.90   $ 61.31  
Vested (in shares)     100,000      
Wyndham Hotels & Resorts, Inc. 2018 Equity and Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Payment Arrangement, Expense $ 6 $ 21 $ 11 $ 24    
Maximum number of shares approved (in shares)           10,000,000
Remaining shares available (in shares) 6,700,000   6,700,000      
Wyndham Worldwide | RSUs            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grant date fair value (in dollars per share) $ 64.46   $ 64.46