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Derivatives Gain (Loss) on Fair Value Hedges Recognized in Earnings (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2018 | Apr. 01, 2017 | Mar. 31, 2018 | Apr. 01, 2017
Foreign Exchange Forward [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Forward foreign currency contracts | $ (3.8) | $ (2.1) | $ (2.5) | $ 7.5

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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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