Recorded Investment in Non-accrual Notes Receivable that are 90 Days or More Past Due (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 15, 2012	Jun. 17, 2011	Dec. 30, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Investment in notes receivable on non-accrual status	$ 97		$ 101
Average investment in notes receivable on non-accrual status	99	124
Non-Securitized Vacation Ownership Notes Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Investment in notes receivable on non-accrual status	84		90
Average investment in notes receivable on non-accrual status	87	108
Securitized Vacation Ownership Notes Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Investment in notes receivable on non-accrual status	13		11
Average investment in notes receivable on non-accrual status	$ 12	$ 16