Acquisitions (Shell Vacation LLC, Estimated Fair Values of Assets Acquired and Liabilities Assumed) (Details) (USD $) In Millions, unless otherwise specified				1 Months Ended			1 Months Ended			1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Sep. 13, 2012 Shell Vacation LLC [Member]	Sep. 30, 2012 Shell Vacation LLC [Member] Customer Relationships [Member]	Sep. 13, 2012 Shell Vacation LLC [Member] Customer Relationships [Member]		Sep. 30, 2012 Shell Vacation LLC [Member] Trademarks [Member]	Sep. 13, 2012 Shell Vacation LLC [Member] Trademarks [Member]		Sep. 30, 2012 Shell Vacation LLC [Member] Management Contracts [Member]	Sep. 13, 2012 Shell Vacation LLC [Member] Management Contracts [Member]
Business Acquisition [Line Items]
Vacation ownership contracts receivables			$ 140
Inventory			47
Definite-Lived Intangibles					31	[1]		4	[2]		23	[3]
Goodwill	1,590	1,566	27
Property and equipment			22
Other current and non-current assets			34
Total assets acquired			328
Other current liabilities			56
Assumed debt			79
Other non-current liabilities			11
Total liabilities assumed			146
Noncontrolling interest	2	1	2
Net assets acquired			$ 180
Weighted average useful life (in years) of definite-lived intangible assets				15 years			7 years			15 years

[1] Represents customer relationships with a weighted average life of 15 years; included within Franchise agreements and other intangibles, net on the Consolidated Balance Sheet.

[2] Represents trademarks with a life of 7 years.

[3] Represents management contracts with a weighted average life of 15 years; included within Franchise agreements and other intangibles, net on the Consolidated Balance Sheet.