Timeshare Financing Receivables - Additional Information (Details) - USD ($)	1 Months Ended	9 Months Ended
	Mar. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, weighted average interest rate (as a percent)		12.10%
Financing receivable, weighted average remaining term (in years)		7 years 8 months 13 days
Financing receivable weighted average maturities year		2028
Timeshare financing receivable not accruing interest		$ 47,000,000	$ 38,000,000
Securitized and Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Timeshare financing receivables securitized	$ 357,000,000
Non-recourse Debt | Securitized and Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument stated maturity date		2028-12
Timeshare Facility with an average rate of 2.36%, due 2019 | Non-recourse Debt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Line of credit facility, maximum borrowing capacity			450,000,000
Gross timeshare receivables securing the Timeshare Facility		$ 143,000,000	$ 509,000,000
2.66% Notes | Non-recourse Debt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, face amount	$ 291,000,000
Debt instrument, stated interest rate	2.66%
2.96% Notes | Non-recourse Debt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, face amount	$ 59,000,000
Debt instrument, stated interest rate	2.96%
Debt instrument stated maturity date		2028-12
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)		5.30%
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)		20.50%