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Income Taxes (Schedule Of Tax Effects Of Temporary Differences That Generated Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 29, 2012 | Oct. 01, 2011
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Income Tax Disclosure [Abstract] |  |
Benefit accruals | $ 219,396 | $ 188,473
Inventory reserves | 30,953 | 29,449
Tax benefit carryforwards | 14,928 | 11,789
Contract loss reserves not currently deductible | 12,124 | 14,231
Other accrued expenses | 14,563 | 13,303
Total gross deferred tax assets | 291,964 | 257,245
Less valuation allowance | (1,746) | (4,106)
Total net deferred tax assets | 290,218 | 253,139
Differences in bases and depreciation of property, plant and equipment | 172,253 | 166,039
Pension | 49,293 | 50,061
Foreign currency | 1,963 | 1,492
Other | 415 | 0
Total gross deferred tax liabilities | 223,924 | 217,592
Net deferred tax assets | $ 66,294 | $ 35,547

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