Quarterly report [Sections 13 or 15(d)]

Revenue Recognition (Disaggregation of Net Revenues) (Details)

v3.25.2
Revenue Recognition (Disaggregation of Net Revenues) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues $ 397 $ 367 $ 713 $ 671
Royalties and franchise fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 147 144 272 260
Marketing and reservation fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 140 123 238 220
Deferred loyalty program revenues        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 25 27 43 47
Management and other fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 2 2 5 5
License and other fees        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 33 31 60 57
Cost reimbursements        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues 0 1 0 2
Other        
Disaggregation of Revenue [Line Items]        
Royalties and franchise fee revenues $ 50 $ 39 $ 95 $ 80