Revenue from Contracts with Customers - Schedule of Impact of New Revenue Guidance on Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 85		$ 246
Restricted cash	69		51
Accounts receivable, net of allowance for doubtful accounts	117		112
Timeshare financing receivables, net	1,074		1,071
Inventory	564		509
Property and equipment, net	235		238
Investment in unconsolidated affiliates	37		41
Intangible assets, net	73		72
Other assets	111		44
TOTAL ASSETS (variable interest entities - $432 and $471)	2,365		2,384
Liabilities:
Accounts payable, accrued expenses and other	296		339
Advanced deposits	92		104
Debt, net	479		482
Non-recourse debt, net	544		583
Deferred revenues	326		109
Deferred income tax liabilities	228		249
Total liabilities (variable interest entities - $416 and $455)	1,965		1,866
Commitments and contingencies
Equity:
Preferred stock, $0.01 par value; 300,000,000 authorized shares, none issued or outstanding as of March 31, 2018 and December 31, 2017	0		0
Common stock, $0.01 par value; 3,000,000,000 authorized shares, 96,821,553 issued and outstanding as of March 31, 2018 and 99,136,304 issued and outstanding as of December 31, 2017	1		1
Additional paid-in capital	161		162
Accumulated retained earnings	238		355
Total equity	400		518
TOTAL LIABILITIES AND EQUITY	2,365		$ 2,384
Topic 606
ASSETS
Cash and cash equivalents		$ 246
Restricted cash		51
Accounts receivable, net of allowance for doubtful accounts		112
Timeshare financing receivables, net		1,071
Inventory		539
Property and equipment, net		238
Investment in unconsolidated affiliates		41
Intangible assets, net		72
Other assets		60
TOTAL ASSETS (variable interest entities - $432 and $471)		2,430
Liabilities:
Accounts payable, accrued expenses and other		341
Advanced deposits		87
Debt, net		482
Non-recourse debt, net		583
Deferred revenues		221
Deferred income tax liabilities		236
Total liabilities (variable interest entities - $416 and $455)		1,950
Commitments and contingencies
Equity:
Preferred stock, $0.01 par value; 300,000,000 authorized shares, none issued or outstanding as of March 31, 2018 and December 31, 2017		0
Common stock, $0.01 par value; 3,000,000,000 authorized shares, 96,821,553 issued and outstanding as of March 31, 2018 and 99,136,304 issued and outstanding as of December 31, 2017		1
Additional paid-in capital		162
Accumulated retained earnings		317
Total equity		480
TOTAL LIABILITIES AND EQUITY		2,430
Topic 606 | Effects of ASC 606
ASSETS
Cash and cash equivalents	0	0
Restricted cash	0	0
Accounts receivable, net of allowance for doubtful accounts	0	0
Timeshare financing receivables, net	0	0
Inventory	(48)	30
Property and equipment, net	0	0
Investment in unconsolidated affiliates	0	0
Intangible assets, net	0	0
Other assets	(23)	16
TOTAL ASSETS (variable interest entities - $432 and $471)	(71)	46
Liabilities:
Accounts payable, accrued expenses and other	7	2
Advanced deposits	17	(17)
Debt, net	0	0
Non-recourse debt, net	0	0
Deferred revenues	(170)	112
Deferred income tax liabilities	13	(13)
Total liabilities (variable interest entities - $416 and $455)	(133)	84
Commitments and contingencies
Equity:
Preferred stock, $0.01 par value; 300,000,000 authorized shares, none issued or outstanding as of March 31, 2018 and December 31, 2017	0	0
Common stock, $0.01 par value; 3,000,000,000 authorized shares, 96,821,553 issued and outstanding as of March 31, 2018 and 99,136,304 issued and outstanding as of December 31, 2017	0	0
Additional paid-in capital	0	0
Accumulated retained earnings	62	(38)
Total equity	62	(38)
TOTAL LIABILITIES AND EQUITY	(71)	$ 46
Topic 606 | Previous Accounting Guidance
ASSETS
Cash and cash equivalents	85
Restricted cash	69
Accounts receivable, net of allowance for doubtful accounts	117
Timeshare financing receivables, net	1,074
Inventory	516
Property and equipment, net	235
Investment in unconsolidated affiliates	37
Intangible assets, net	73
Other assets	88
TOTAL ASSETS (variable interest entities - $432 and $471)	2,294
Liabilities:
Accounts payable, accrued expenses and other	303
Advanced deposits	109
Debt, net	479
Non-recourse debt, net	544
Deferred revenues	156
Deferred income tax liabilities	241
Total liabilities (variable interest entities - $416 and $455)	1,832
Commitments and contingencies
Equity:
Preferred stock, $0.01 par value; 300,000,000 authorized shares, none issued or outstanding as of March 31, 2018 and December 31, 2017	0
Common stock, $0.01 par value; 3,000,000,000 authorized shares, 96,821,553 issued and outstanding as of March 31, 2018 and 99,136,304 issued and outstanding as of December 31, 2017	1
Additional paid-in capital	161
Accumulated retained earnings	300
Total equity	462
TOTAL LIABILITIES AND EQUITY	$ 2,294