Fair Value Measurements - Schedule by Balance Sheet Grouping (Details) - USD ($) $ in Millions		Dec. 31, 2016	Dec. 31, 2015
Capital lease obligations [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt and capital lease obligations, including current maturities		$ 242	$ 245
Non-recourse debt of consolidated VIEs [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt and capital lease obligations, including current maturities		33	32
Level 1 [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt		2,886	1,619
Level 2 [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		958	327
Restricted cash equivalents		11	18
Interest rate swaps		12	15
Level 3 [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Timeshare financing receivables		1,153	1,080
Long-term debt		7,152	8,267
Timeshare debt		696	506
Carrying value [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		958	327
Restricted cash equivalents		11	18
Timeshare financing receivables	[1]	1,031	976
Long-term debt	[2],[3]	9,843	9,673
Timeshare debt	[2]	694	502
Interest rate swaps		$ 12	$ 15

[1] Carrying value includes allowance for loan loss.

[2] Carrying value includes unamortized deferred financing costs and discounts.

[3] Excludes capital lease obligations with a carrying value of $242 million and $245 million as of December 31, 2016 and December 31, 2015, respectively, and debt of certain consolidated VIEs with a carrying value of $33 million and $32 million, respectively.