v3.26.1
Property and equipment (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Property, Plant, and Equipment [Line Items]    
Total property and equipment $ 1,647 $ 1,626
Less: accumulated depreciation and amortization 1,124 1,095
Property and equipment, net 523 531
Capitalized software    
Property, Plant, and Equipment [Line Items]    
Total property and equipment 863 854
Building and leasehold improvements    
Property, Plant, and Equipment [Line Items]    
Total property and equipment [1] 565 564
Building and leasehold improvements | Unregistered VOI inventory    
Property, Plant, and Equipment [Line Items]    
Total property and equipment 118 119
Furniture, fixtures and equipment    
Property, Plant, and Equipment [Line Items]    
Total property and equipment 120 120
Land    
Property, Plant, and Equipment [Line Items]    
Total property and equipment 20 20
Other Capitalized Property Plant and Equipment [Member]    
Property, Plant, and Equipment [Line Items]    
Total property and equipment 60 59
Construction in progress    
Property, Plant, and Equipment [Line Items]    
Total property and equipment $ 19 $ 9
[1] Includes $118 million and $119 million of unregistered VOI inventory as of March 31, 2026 and December 31, 2025.