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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
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Oct. 03, 2020 | Sep. 28, 2019 | Sep. 29, 2018 | Sep. 29, 2019
Summary Of Significant Accounting Policies |  |  |  |
Fiscal Period Duration - Weeks | 1 year | 1 year | 1 year |
Goodwill impairment charge | $ 0 |  |  |
Initial Right of Use Asset Recognized |  |  |  | $ 75,521
Initial Lease Liability |  |  |  | $ 79,187
Change in Accounting Principle Cash Flow Impact | 279,177 | $ 181,423 | $ 102,407 |
Restatement Adjustment |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Change in Accounting Principle Cash Flow Impact | $ 0 |  |  |
Minimum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Warranty period - months | twelve |  |  |
Maximum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Warranty period - months | sixty |  |  |
Buildings and Improvements | Minimum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |  |
Buildings and Improvements | Maximum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |  |
Machinery And Equipment | Minimum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |  |
Machinery And Equipment | Maximum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |  |
Computer Equipment and Software | Minimum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
Computer Equipment and Software | Maximum |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |  |
Stock Appreciation Rights (SARs) |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Vesting period | 3 years |  |  |
Performance-based Restricted Stock Units (PSUs) |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Vesting period | 3 years |  |  |
Fixed income funds |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Defined Benefit Plan Percentage of Plan Assets | 80.00% |  |  |
Other plan assets |  |  |  |
Summary Of Significant Accounting Policies |  |  |  |
Defined Benefit Plan Percentage of Plan Assets | 20.00% |  |  |

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