Quarterly report pursuant to Section 13 or 15(d)

Other Expenses and Charges - Narrative (Details)

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Other Expenses and Charges - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
May 31, 2022
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]                
Separation-related   $ 0 $ 2 $ 2 $ (1) $ 1 $ 0 $ 0
Proceeds from asset sales, net             0 263
Gain on asset sale, net   $ 0     $ 0 $ 1 $ 0 (35)
Franchise agreement, term 20 years           20 years  
Wyndham Grand Bonnet Creek Resort Sale                
Restructuring Cost and Reserve [Line Items]                
Proceeds from asset sales, net               118
Proceeds from Sale of Productive Assets, Gross [Line Items]               $ 121
Wyndham Grand Rio Mar Resort Sale 22                
Restructuring Cost and Reserve [Line Items]                
Proceeds from asset sales, net $ 61              
Proceeds from Sale of Productive Assets, Gross [Line Items] $ 62