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Income Taxes (Reasons For Differences Between Statutory Federal Tax Rate And Effective Income Tax Rate) (Details)
12 Months Ended
Oct. 02, 2021
Oct. 03, 2020
Sep. 28, 2019
Income Tax Disclosure [Abstract]      
Federal income tax rate 21.00% 21.00% 21.00%
State income taxes 3.30% 2.90% 2.80%
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent (0.40%) (0.10%) (6.70%)
Effective Income Tax Rate Reconciliation, Foreign-Derived Intangible Income Deduction, Percent 1.10% 0.60% 0.30%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent 1.80% 0.00% 0.00%
Other (0.30%) (0.90%) (0.70%)
Effective income tax rate 24.30% 22.30% 16.10%