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Derivatives - Schedule of Fair Value of Outstanding Derivative Instruments (Details) - USD ($) $ in Millions | Apr. 04, 2021 | Sep. 30, 2020
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Derivatives, Fair Value [Line Items] |  |
Derivative Assets | $ 5.8 | $ 1.2
Derivative Liabilities | 9.8 | 14.2
Commodity Swaps | Other receivables | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets | 1.3 | 0.7
Commodity Swaps | Deferred charges and other | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets | 0.0 | 0.1
Commodity Swaps | Accounts payable | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liabilities | 0.1 | 0.0
Foreign Exchange Contracts | Other receivables | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets | 1.3 | 0.0
Foreign Exchange Contracts | Other receivables | Not Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets | 2.8 | 0.4
Foreign Exchange Contracts | Deferred charges and other | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets | 0.4 | 0.0
Foreign Exchange Contracts | Accounts payable | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liabilities | 7.2 | 3.8
Foreign Exchange Contracts | Accounts payable | Not Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liabilities | 2.4 | 10.1
Foreign Exchange Contracts | Other long term liabilities | Designated as Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liabilities | $ 0.1 | $ 0.3

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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 + Details
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