v3.26.1
Revenue Recognition (Prop Mgmt Rev) (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2026
USD ($)
numberOfAssociations
Mar. 31, 2025
USD ($)
numberOfAssociations
Disaggregation of Revenue [Line Items]    
Net revenues $ 961 $ 934
Vacation Ownership | Operating Segments    
Disaggregation of Revenue [Line Items]    
Net revenues 798 755
Management fee revenues | Vacation Ownership    
Disaggregation of Revenue [Line Items]    
Net revenues 116 114
Reimbursable revenues | Vacation Ownership    
Disaggregation of Revenue [Line Items]    
Net revenues 107 109
Property management fees and reimbursable revenues | Vacation Ownership | Operating Segments    
Disaggregation of Revenue [Line Items]    
Net revenues 223 223
Exchange-related revenue | Vacation Ownership    
Disaggregation of Revenue [Line Items]    
Net revenues $ 9 $ 9
Managed property owner's associations that paid travel and membership exchange fees | numberOfAssociations 1 1