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Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 30, 2017 | Apr. 01, 2017
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Foreign exchange contracts [Member] | Hedge [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Notional amount | $ 198.9 | $ 162.7 | $ 164.6
Foreign exchange contracts [Member] | Non-hedge [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Notional amount | 5.5 | 0.0 | 0.0
Interest rate swaps [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Notional amount | 442.0 | 446.9 | 494.6
Cross currency swap [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Notional amount | $ 106.4 | $ 106.4 | $ 106.4

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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