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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 15, 2013	Jun. 16, 2012	Jun. 15, 2013	Jun. 16, 2012	Jun. 15, 2013 U.S. federal [Member]	Mar. 24, 2012 Little Sheep Group Limited [Member]	Jun. 16, 2012 Little Sheep Group Limited [Member]	Feb. 01, 2012 Little Sheep Group Limited [Member]
Income Tax And Effective Tax Rate [Abstract]
Income taxes	$ 82	$ 102	$ 202	$ 249
Effective tax rate	22.70%	23.70%	24.80%	23.90%
U.S. Federal Statutory rate					35.00%
Gain upon acquisition of Little Sheep	0	0	0	74		74	74
Income tax expense from gain on acquisition of Little Sheep								$ 0

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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