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Share-Based Employee Compensation (Summary Of Stock Equivalent Activity) (Details)
12 Months Ended
Oct. 01, 2017
$ / shares
shares
Oct. 02, 2016
$ / shares
shares
Sep. 27, 2015
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance   0 0
Stock Issued During Period, Shares, Employee Stock Purchase Plans 0 0 1,371
Employee Stock Purchase Plan Member      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased | $ / shares     $ 70.78
Deferred Compensation for Non Management Directors [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 0    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Stock awards outstanding, Beginning balance, Shares 84,364    
Deferred Directors' Compensation in Current Period, Shares 2,632    
Deferred directors' compensation, Weighted-Average Grant Date Fair Value | $ / shares 102.58    
StockEquivalentsDuringPeriodSharesDividend 1,519    
Stock awards outstanding, Ending balance, Shares 88,515 84,364  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Stock awards outstanding, Weighted-Average Grant Date Fair Value, Ending balance (usd per share) | $ / shares $ 32.85 $ 29.43  
StockEquivalentdividendsweightedaveragepersharefairvalue | $ / shares 101.94