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Vacation Ownership Contract Receivables (Allowance For Loan Losses On Vacation Ownership Contract Receivables) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Vacation Ownership Contract Receivables [Abstract]      
Financing Receivable, Allowance for Credit Loss, Beginning Balance $ 510 $ 693 $ 747
Provision for Loan, Lease, and Other Losses 302 129 415
Financing Receivable, Allowance for Credit Loss, Writeoff 271 312 469
Financing Receivable, Allowance for Credit Loss, Ending Balance $ 541 $ 510 $ 693