Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended				6 Months Ended	3 Months Ended		6 Months Ended
	Jun. 16, 2012	Jun. 11, 2011	Jun. 16, 2012	Jun. 11, 2011	Mar. 19, 2011 LJS and AW	Jun. 11, 2011 LJS and AW U.S.	Jun. 16, 2012 Little Sheep Group Limited [Member]	Mar. 24, 2012 Little Sheep Group Limited [Member]	Jun. 16, 2012 Little Sheep Group Limited [Member]	Jun. 16, 2012 U.S. federal [Member]	Mar. 19, 2011 Closures and impairment (income) expenses LJS and AW	Jun. 11, 2011 Closures and impairment (income) expenses LJS and AW
Income Tax And Effective Tax Rate [Abstract]
Income taxes	$ 102	$ 62	$ 249	$ 153
Effective tax rate	23.70%	16.40%	23.90%	20.70%
U.S. Federal Statutory rate										35.00%
Gain upon acquisition of Little Sheep	0	0	74	0				74	74
Income tax expense (benefit) related to consolidation of a former unconsolidated affiliate							0
Income tax benefit related to impairment						37.00%
Pre-tax losses recognized on business divestiture					$ 68						$ 66	$ 66