Fair Value Measurements - Schedule of Carrying and Estimated Fair Value Amounts (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Liabilities:
Non-recourse debt, net		$ 795	$ 759
Carrying Amount
Assets:
Timeshare financing receivables, net	[1]	1,139	1,120
Liabilities:
Debt, net	[2]	815	604
Non-recourse debt, net	[2]	795	759
Level 1
Assets:
Timeshare financing receivables, net	[1]		0
Liabilities:
Debt, net	[2]	320	302
Non-recourse debt, net	[2]		0
Level 3
Assets:
Timeshare financing receivables, net	[1]	1,424	1,339
Liabilities:
Debt, net	[2]	527	309
Non-recourse debt, net	[2]	$ 797	$ 753

[1] Carrying amount net of allowance for financing receivables losses.

[2] Carrying amount net of unamortized deferred financing costs and discount.