Annual report pursuant to Section 13 and 15(d)

Transactions With Former Parent (Narrative) (Details)

v3.25.0.1
Transactions With Former Parent (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Related Party Transaction [Line Items]      
Accrued Liabilities, Current $ 265 $ 299  
Net revenues 1,408 1,397 $ 1,498
Due to former Parent (Note 17) 8 20  
Other current assets      
Related Party Transaction [Line Items]      
Receivables due from former parent 0 3  
Affiliated Entity | Licensing Agreements      
Related Party Transaction [Line Items]      
Net revenues 6 7 7
Affiliated Entity | Wyndham Rewards      
Related Party Transaction [Line Items]      
Net revenues 19 15 10
Wyndham Worldwide | Licensing Agreements      
Related Party Transaction [Line Items]      
Net revenues $ 94 $ 90 $ 83