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Employee Stock Plans (Value Of Awards Granted And Exercised During The Period) (Details) (USD $)
3 Months Ended 6 Months Ended
Mar. 31, 2013
Apr. 01, 2012
Mar. 31, 2013
Apr. 01, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Estimated fair value per option granted $ 13.13 $ 13.15 $ 12.74 $ 12.75
Weighted average option grant price $ 55.75 $ 49.94 $ 50.13 $ 43.81
Weighted average price per option exercised $ 17.73 $ 15.36 $ 15.35 $ 15.69
Weighted average RSU grant price $ 55.76 $ 50.34 $ 49.77 $ 43.83