Notes Receivable - Future Maturities of Gross VOI Notes Receivable and Interest Rates (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
2013	$ 102
2014	87
2015	89
2016	87
Thereafter	370
Total gross VOI notes receivable	735
Weighted Average Interest Rates	12.75%
Range of interest rates, Minimum	5.00%
Range of interest rates, Maximum	17.00%
Vacation ownership loans-securitized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2013	74
2014	76
2015	77
2016	75
Thereafter	274
Total gross VOI notes receivable	576
Weighted Average Interest Rates	12.97%
Range of interest rates, Minimum	5.00%
Range of interest rates, Maximum	17.00%
Vacation ownership loans-unsecuritized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2013	28
2014	11
2015	12
2016	12
Thereafter	96
Total gross VOI notes receivable	$ 159
Weighted Average Interest Rates	12.13%
Range of interest rates, Minimum	6.00%
Range of interest rates, Maximum	17.00%

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Amount of notes receivable related to time share sales, before allowance for uncollectible accounts and deferred profit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 978

-SubTopic 310

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6498260&loc=d3e27305-108690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 978

-SubTopic 310

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6498279&loc=d3e27327-108691

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 04-2

-Paragraph 64

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 04-2

-Paragraph 63

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Aggregate total of all maturities of notes receivable after the first five years following the date of the financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 978

-SubTopic 310

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6498279&loc=d3e27327-108691

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 04-2

-Paragraph 64

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 04-2

-Paragraph 63

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Maturities for the fourth year following the date of the financial statements.

+ References

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- Definition

Maturities for the first year following the date of the financial statements.

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Maturities for the third year following the date of the financial statements.

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Maturities for the second year following the date of the financial statements.

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- Definition

Maximum end of range of stated interest rates of notes receivable.

+ References

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- Definition

Minimum end of range of stated interest rates of notes receivable.

+ References

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- Definition

Weighted average of stated interest rates of notes receivable.

+ References

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