Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 25, 2011
Notes to Financial Statements [Abstract]    
Annual effective income tax rate for continuing operations (estimated for fiscal 2012) 18.00% 20.00%
Tax benefit related to foreign earnings 17.00%  
Amount by which the expected Singapore tax would be higher without tax incentive $ 265