Quarterly report [Sections 13 or 15(d)]

Stock-Based Compensation (Narrative) (Details)

v3.25.2
Stock-Based Compensation (Narrative) (Details) - USD ($)
shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
May 14, 2018
Restricted Stock Units (RSUs) [Member] | Key employees and senior officers          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Value of awards granted     $ 32,000,000    
Vesting period     4 years    
Performance Shares | Key employees and senior officers          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Maximum value of awards authorized for grant     $ 20,000,000    
Performance Shares | Key employees and senior officers | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Target award percentage     0.00%    
Performance Shares | Key employees and senior officers | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Target award percentage     200.00%    
Wyndham Hotels & Resorts, Inc. 2018 Equity and Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Maximum number of shares approved (in shares)         10.0
Remaining shares available (in shares) 4.2   4.2    
Share-Based Payment Arrangement, Expense $ 9,000,000 $ 12,000,000 $ 19,000,000 $ 22,000,000  
Wyndham Hotels & Resorts, Inc. 2018 Equity and Incentive Plan | Transaction related costs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-Based Payment Arrangement, Expense $ 1,000,000 0 $ 1,000,000 1,000,000  
Wyndham Hotels & Resorts, Inc. 2018 Equity and Incentive Plan | Restructuring Charges          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-Based Payment Arrangement, Expense   $ 2,000,000   $ 2,000,000