Inventory - Additional Information (Detail) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 09, 2011	Sep. 10, 2010	Sep. 09, 2011	Sep. 10, 2010	Dec. 31, 2010
Inventory Disclosure [Line Items]
Timeshare strategy-impairment charges	$ 324	$ 0	$ 324	$ 0
Inventory	1,029		1,029		1,489
Inventory, hotel operating supplies for owned or leased properties	18		18		17
Timeshare Segment
Inventory Disclosure [Line Items]
Timeshare strategy-impairment charges	324
Timeshare strategy impairment, reclass	57
Inventory	1,011		1,011		1,472
Timeshare Segment | Inventory
Inventory Disclosure [Line Items]
Timeshare strategy-impairment charges	$ 256