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 6 Months Ended
May 31, 2022
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]            
Separation-related   $ 2 $ (2) $ 1 $ 0 $ 1
Proceeds from asset sales, net         0 263
(Gain)/loss on asset sales   $ 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