Notes Receivable Reserves (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 22, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 147
Provision for loan losses	9
Write-offs	(11)
Other	(1)
Ending Balance	144
Non-Securitized Vacation Ownership Notes Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	93
Provision for loan losses	9
Securitizations	(12)
Clean-up calls	4	[1]
Write-offs	(11)
Defaulted notes receivable repurchase activity	7	[2]
Other	(3)
Ending Balance	87
Securitized Vacation Ownership Notes Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	54
Securitizations	12
Clean-up calls	(4)	[1]
Defaulted notes receivable repurchase activity	(7)	[2]
Other	2
Ending Balance	$ 57

[1] Refers to our voluntary repurchase of previously securitized non-defaulted vacation ownership notes receivable to retire outstanding vacation ownership notes receivable securitizations.

[2] Decrease in securitized vacation ownership notes receivable reserve and increase in non-securitized vacation ownership notes receivable reserve was attributable to the transfer of the reserve when we voluntarily repurchased the vacation ownership notes receivable.