Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Sep. 09, 2011	Dec. 30, 2011	Dec. 31, 2010	Jan. 01, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, other than temporary impairment	$ 18,000,000
Other comprehensive loss, reclassification adjustment for write-down of securities included in net income, net of tax	10,000,000	(18,000,000)	0
Timeshare strategy-impairment, operating and non-operating charges		324,000,000	0	752,000,000
Former Timeshare Segment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Timeshare strategy-impairment, operating and non-operating charges				752,000,000
Timeshare strategy impairment, operating and non-operating charges, net of tax		234,000,000		502,000,000
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of our marketable securities		50,000,000
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments, long-term liability position		0
Operating and Joint Venture Impairments | Former Timeshare Segment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Timeshare strategy-impairment, operating and non-operating charges		324,000,000		685,000,000
Timeshare strategy impairment, operating and non-operating charges, net of tax	$ 234,000,000