Timeshare Financing Receivables - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Decrease in Variable Consideration		$ 45
Reduction in Revenue due to COVID-19 Pandemic		$ 23
Cash deposit for future pledging of qualified collateral	$ 15
Financing receivable, weighted average interest rate (as a percent)	12.56%	12.56%
Financing receivable, weighted average remaining term (in years)		7 years 8 months 12 days
Financing receivable weighted average maturities year		2035
Interest receivable outstanding	$ 9	$ 9	$ 9
Timeshare financing receivable not accruing interest	$ 101	$ 101	74
Minimum
Accounts Notes And Loans Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)	3.90%	3.90%
Maximum
Accounts Notes And Loans Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)	20.50%	20.50%
2.74 Percent Notes
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount	$ 186	$ 186
Debt instrument, stated interest rate	2.74%	2.74%
4.22 Percent Notes
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount	$ 66	$ 66
Debt instrument, stated interest rate	4.22%	4.22%
6.42 Percent Notes
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount	$ 48	$ 48
Debt instrument, stated interest rate	6.42%	6.42%
Non-recourse Debt
Accounts Notes And Loans Receivable [Line Items]
Gross timeshare receivables securing the Timeshare Facility	$ 20	$ 20	$ 0
Timeshare financing receivables securitized	$ 300	300
Debt instrument stated maturity date	Feb. 25, 2039
Non-recourse Debt \| 2.74 Percent Notes
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount	$ 186	$ 186
Debt instrument, stated interest rate	2.74%	2.74%
Non-recourse Debt \| 4.22 Percent Notes
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount	$ 66	$ 66
Debt instrument, stated interest rate	4.22%	4.22%
Non-recourse Debt \| 6.42 Percent Notes
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount	$ 48	$ 48
Debt instrument, stated interest rate	6.42%	6.42%

Cash deposit for future pledging of qualified collateral.

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Financing receivable weighted average maturities year.

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Financing Receivable, Weighted Average Remaining Term

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Increase (Decrease) Adjustment to Variable Consideration.

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Reduction in Revenue due to Unusual Or Infrequent Item.

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Time-sharing Transactions, Weighted Average Interest Rate for Notes Receivable

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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This is the principal amount outstanding for securitized loans only (across all types of loans).

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The receivable or note face amount less the unamortized discount or premium.

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Stated interest rate of notes receivable from time-sharing transactions.

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