Quarterly report [Sections 13 or 15(d)]

Revenue Recognition (Disaggregation of Net Revenues) (Details)

v3.25.3
Revenue Recognition (Disaggregation of Net Revenues) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues $ 382 $ 396 $ 1,095 $ 1,067
Royalties and franchise fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 147 159 420 419
Marketing and reservation fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 128 136 365 356
Deferred loyalty program revenues        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 21 25 66 73
Management and other fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 2 3 7 7
License and other fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 35 32 95 89
Cost reimbursements        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 0 2 0 4
Other        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 49 39 142 119
Partnership fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 24 17 71 53
Other Products and Services Excluding Partnership Fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues $ 25 $ 22 $ 71 $ 66