Variable Interest Entities - Additional Information (Detail) (USD $)			9 Months Ended				9 Months Ended
	Sep. 07, 2012	Dec. 30, 2011	Sep. 07, 2012 Minimum	Sep. 07, 2012 Maximum	Sep. 07, 2012 Variable Interest Entity	Dec. 30, 2011 Variable Interest Entity	Sep. 07, 2012 Variable Interest Entity, Not Primary Beneficiary Equity Investment And Loan Receivable	Sep. 09, 2011 Variable Interest Entity, Not Primary Beneficiary Equity Investment And Loan Receivable
Variable Interest Entity [Line Items]
Noncontrolling interest	$ 0
Limit to repurchasing defaulted mortgage notes at the outstanding principal balance			15.00%	20.00%
Maximum Loss Exposure, Determination Methodology					Our maximum exposure to loss relating to the entities that own these vacation ownership notes receivable is the overcollateralization amount (the difference between the loan collateral balance and the balance on the outstanding vacation ownership notes receivable), plus cash reserves and any residual interest in future cash flows from collateral.		We have a remaining accrual of $10 million for potential future funding included in other liabilities on our Balance Sheet, representing our remaining expected exposure to loss related to our involvement with this entity.
Notes receivable, net	1,065,000,000	1,149,000,000			834,000,000	910,000,000	0
Accrued liability for additional funding							10,000,000
Reversal of impairment cost on investment							$ 2,000,000	$ 4,000,000