Annual report pursuant to Section 13 and 15(d)

Transactions with Former Parent and Former Subsidiaries (Narrative) (Details)

v3.22.4
Transactions with Former Parent and Former Subsidiaries (Narrative) (Details)
£ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2022
GBP (£)
Sep. 30, 2022
USD ($)
Dec. 31, 2021
GBP (£)
Dec. 31, 2020
GBP (£)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
GBP (£)
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Guarantees $ 68 $ 67              
Gain/(loss) on disposal of discontinued business, net of income taxes 1 (5) $ (2)            
British Travel Association and Regulatory Authorities                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Secured bonding facility and perpetual guarantee 46                
Guarantees $ 22                
Affiliated Entity                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Responsible liability for separation agreement 37.50%                
Contingent and other corporate liabilities retained 0.25     0.25          
Related party expense $ 1 1 1            
Separation and Distribution Agreement, Portion of Certain Contingent and Other Corporate Liabilities Assumed 0.67     0.67          
Separation and Distribution Agreement, Portion of Proceeds From Contingent and Other Corporate Assets 0.67     0.67          
Post-closing Credit Support, Portion of Escrow Received Upon Release 0.67     0.67          
Post-closing Credit Support, Portion of Guarantees Assumed 0.67     0.67          
Affiliated Entity | Realogy                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Responsible liability for separation agreement 62.50%                
Affiliated Entity | Cendant | Accrued Liabilities and Other Liabilities                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Liabilities assumed $ 15 13              
Affiliated Entity | Wyndham Hotels And Resorts, Inc.                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Contingent and other corporate liabilities retained 0.33     0.33          
Separation and Distribution Agreement, Portion of Certain Contingent and Other Corporate Liabilities Assumed 0.33     0.33          
Separation and Distribution Agreement, Portion of Proceeds From Contingent and Other Corporate Assets 0.33     0.33          
Post-closing Credit Support, Portion of Escrow Received Upon Release 0.33     0.33          
Wyndham Hotels And Resorts, Inc.                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Receivable from related party $ 7                
Sale Of European Vacation Rental Business | European vacation rentals business [Member] | Accrued expenses and other liabilities                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Guarantees $ 90                
Sale Of European Vacation Rental Business | Wyndham Hotels And Resorts, Inc. | Financial Guarantee | Awaze [Member]                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Post-closing Credit Support, Portion of Escrow Received Upon Release 0.33     0.33          
Sale Of European Vacation Rental Business | Affiliated Entity                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Gain/(loss) on disposal of discontinued business, net of income taxes     (2)            
Sale Of European Vacation Rental Business | Affiliated Entity | Indemnification Agreement                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Guarantees $ 42                
Sale Of European Vacation Rental Business | Affiliated Entity | Financial Guarantee | British Travel Association and Regulatory Authorities                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Secured bonding facility and perpetual guarantee 81     £ 61          
Guarantees 39     £ 47          
Sale Of European Vacation Rental Business | Affiliated Entity | Financial Guarantee | Awaze [Member]                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Secured bonding facility and perpetual guarantee               $ 44 £ 35
Liability for Unpaid Claims and Claims Adjustment Expense, Adjustments   7       £ 5      
Guarantees 0                
Sale Of European Vacation Rental Business | Wyndham Hotels And Resorts, Inc. | Other assets                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Receivable from related party 21                
Sale Of European Vacation Rental Business | Wyndham Hotels And Resorts, Inc. | Indemnification Agreement                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Receivable from related party 14                
Sale Of European Vacation Rental Business | Wyndham Hotels And Resorts, Inc. | Financial Guarantee | British Travel Association and Regulatory Authorities                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Secured bonding facility and perpetual guarantee | £             £ 58    
Sale Of European Vacation Rental Business | Wyndham Hotels And Resorts, Inc. | Financial Guarantee | Awaze [Member]                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Receivable from related party         $ 2        
Sale Of European Vacation Rental Business | Wyndham Hotels And Resorts, Inc. | Letter of Credit [Member] | British Travel Association and Regulatory Authorities                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Secured bonding facility and perpetual guarantee | £             £ 36    
Sale Of North American Vacation Rental Business | Affiliated Entity | Indemnification Agreement                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Guarantees $ 2                
General and Administrative Expense [Member] | Transaction Service Agreement | Wyndham Hotels And Resorts, Inc.                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Related party expense     1            
General and Administrative Expense [Member] | Sale Of European Vacation Rental Business | Affiliated Entity                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Related party expense     1            
General and Administrative Expense [Member] | Sale Of North American Vacation Rental Business | Affiliated Entity                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Related party expense   1 1            
Net Revenue [Member] | Sale Of European Vacation Rental Business | Affiliated Entity                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Revenue from related parties     1            
Other | Sale Of North American Vacation Rental Business | Affiliated Entity                  
Separation Adjustments And Transactions With Former Parent And Subsidiaries [Line Items]                  
Revenue from related parties   $ 1 $ 2