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Derivative Financial Instruments Interest Rate Swaps (Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position) (Details) - Interest Rate Swap [Member] - Designated as Hedging Instrument [Member] - Long-term Debt [Member] - USD ($) $ in Millions | Dec. 27, 2020 | Sep. 27, 2020
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Derivatives, Fair Value [Line Items] |  |
Derivative Liability, Fair Value, Gross Liability | $ 782.7 | $ 785.6
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | $ 32.7 | $ 35.6

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- Definition Amount of liability hedged in fair value hedging relationship. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109999712-113959 + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109999712-113959 + Details
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