Fair Value Measurements - Schedule of Carrying and Estimated Fair Value Amounts (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Carrying Amount
Assets:
Timeshare financing receivables, net	$ 927	$ 974	[1]
Liabilities:
Debt, net	2,431	1,159	[2]
Non-recourse debt, net	650	766
Level 1
Liabilities:
Debt, net	1,682	315	[2]
Level 3
Assets:
Timeshare financing receivables, net	1,141	1,248	[1]
Liabilities:
Debt, net	821	871	[2]
Non-recourse debt, net	$ 611	$ 732

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

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