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Income Taxes (Reasons For Differences Between Statutory Federal Tax Rate And Effective Income Tax Rate) (Details)
12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Oct. 01, 2011
Income Tax Disclosure [Abstract]      
Federal income tax rate 35.00% 35.00% 35.00%
State income taxes 2.40% 1.50% 1.60%
General business credits (1.30%) (0.70%) (0.90%)
Domestic production deduction (3.20%) (1.80%) (2.30%)
Foreign rate differences and valuation allowances 0.30% 1.80% 0.00%
Other (0.60%) 0.60% (1.80%)
Effective income tax rate 32.60% 36.40% 31.60%