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Stockholders' Equity (Schedule Of Weighted Average Assumptions Used in Calculating Share-Based Performance Awards) (Details) - Performance Shares [Member]
12 Months Ended
Oct. 02, 2020
Sep. 27, 2019
Sep. 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate 32.22% 32.65% 35.54%
Average volatility of peer companies 33.96% 37.07% 36.78%
Average correlation coefficient of peer group 0.61 0.47 0.47
Risk free interest rate 1.62% 2.98% 1.74%
Dividend yield 1.78% 1.84% 1.15%