Property and Equipment - Additional Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended											3 Months Ended	12 Months Ended
	Dec. 30, 2011 Year	Dec. 31, 2010	Jan. 01, 2010	Dec. 30, 2011 Former Timeshare Segment	Dec. 31, 2010 Former Timeshare Segment	Jan. 01, 2010 Former Timeshare Segment	Dec. 31, 2010 Other Unallocated Corporate	Dec. 31, 2010 North American Limited-Service Segment	Dec. 30, 2011 Property and Equipment	Dec. 31, 2010 Property and Equipment	Jan. 01, 2010 Property and Equipment	Sep. 09, 2011 Property and Equipment Former Timeshare Segment	Jan. 01, 2010 Property and Equipment Former Timeshare Segment
Property, Plant and Equipment [Line Items]
Interest capitalized									$ 12	$ 10	$ 8
Estimated useful lives, minimum (in years)	3
Estimated useful lives, maximum (in years)	40
Depreciation expense	127	138	151
Timeshare strategy-impairment charges	324	0	614	324		614						68	64
Timeshare strategy impairment, reclass				57
Impairment of finite-lived intangible assets							84
Impairment of long-lived assets to be disposed of					$ 13			$ 14