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Property and Equipment (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 30, 2012
Property, Plant and Equipment [Abstract]      
Depreciation and amortization expense related to property and equipment $ 360 $ 324 $ 297
Accumulated accelerated depreciation and other asset impairments included in property and equipment 9 4  
Development costs of new locations 447 339 262
Construction accruals included in other current liabilities $ 116 $ 103