Annual report [Section 13 and 15(d), not S-K Item 405]

Transactions With Former Parent (Narrative) (Details)

v3.25.4
Transactions With Former Parent (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]      
Accrued Liabilities, Current $ 290 $ 265  
Net revenues 1,429 1,408 $ 1,397
Due to former Parent (Note 17) 1 8  
Other current assets      
Related Party Transaction [Line Items]      
Receivables due from former parent 0 0  
Affiliated Entity | Licensing Agreements      
Related Party Transaction [Line Items]      
Net revenues 8 6 7
Affiliated Entity | Wyndham Rewards      
Related Party Transaction [Line Items]      
Net revenues 17 19 15
Wyndham Worldwide | Licensing Agreements      
Related Party Transaction [Line Items]      
Net revenues $ 101 $ 94 $ 90