Vacation Ownership Contract Receivables (Allowance For Loan Losses On Vacation Ownership Contract Receivables Gross Write-Offs) (Details) $ in Millions	6 Months Ended
Jun. 30, 2024 USD ($)
Allowance for Credit Loss [Abstract]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 1
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	94
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	43
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	17
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	7
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	31
Financing Receivable, Allowance for Credit Loss, Writeoff	$ 193

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amount of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

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Amount of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease.

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Amount of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

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Amount of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease.

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Amount of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease.

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Amount of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease.

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