Quarterly report [Sections 13 or 15(d)]

Revenue Recognition (Disaggregation of Net Revenues) (Details)

v3.26.1
Revenue Recognition (Disaggregation of Net Revenues) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues $ 327 $ 316
Royalties and franchise fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 114 126
Marketing and reservation fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 98 98
Deferred loyalty program revenues    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 24 18
Management and other fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 4 2
License and other fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 30 27
Other    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 57 45
Partnership fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 33 23
Other Products and Services Excluding Partnership Fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 24 22
Owned Hotel Revenues    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues 1 $ 0
Management fees    
Disaggregation of Revenue [Line Items]    
Royalties and franchise fee revenues $ 3