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Inventory - Schedule of Costs of Sales True-ups Relating to VOI Products and Impacts on the Carrying Value of Inventory (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Time Share        
Inventory [Line Items]        
Cost of sales true-up     $ 17 $ (1)
Cost of VOI sales related to fee-for-service upgrades        
Inventory [Line Items]        
Expenses $ 3 $ 1 $ 7 $ 4