Transfers of Financial Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Transfers of Financial Assets (Textuals) (Abstract)
Number of securitization transactions in which company has variable interest	5
Principal amount of repurchased or replaced defaulted VOI notes receivable	$ 9	$ 12	$ 17	$ 20
Obligation to receive cash flows from VIE	$ 10	$ 10	$ 21	$ 20

This amount represents total cash flows received from retained interests by the transferor other than servicing fees. Other cash flows include, for example, all cash flows from interest-only strips and cash above the minimum required level in cash collateral accounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS140-4 and FIN46(R)-8
-Paragraph B11
-Subparagraph a(3)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 17
-Subparagraph h(4)

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration