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Financial Instruments Financial Instruments (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 28, 2020 | Mar. 30, 2019 | Dec. 31, 2019
Commodity Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Values | $ 1.2 | $ 0.0 | $ 0.0
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months | (0.1) |  |
Foreign Exchange Forward [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Values | 281.1 | 375.6 | 332.5
Foreign Exchange Option [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Values | 17.8 | 0.0 | 17.8
Foreign Exchange Contracts [Member] |  |  |
Derivative [Line Items] |  |  |
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months | 8.8 |  |
Debentures Due 2023 [Member] |  |  |
Derivative [Line Items] |  |  |
Amount of Gain (Loss) Estimated to be Reclassified from Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense |  |  | 2.5
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net |  |  | 0.7
Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Values | 0.0 | 200.0 | 0.0
Forward-Starting Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months | (0.6) |  |
Amount of Gain (Loss) Estimated to be Reclassified from Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense | (1.8) | (2.4) | (2.0)
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Gross Asset | 9.7 | 5.9 | 4.1
Derivative Liability, Fair Value, Gross Liability | 3.4 | 0.2 | 2.3
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Prepaid Expenses and Other Current Assets [Member] | Commodity Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Gross Asset | 0.0 | 0.0 | 0.0
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Prepaid Expenses and Other Current Assets [Member] | Foreign Exchange Contracts [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Gross Asset | 9.7 | 5.9 | 4.1
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Accrued Expenses [Member] | Commodity Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Fair Value, Gross Liability | 0.1 | 0.0 | 0.0
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Accrued Expenses [Member] | Foreign Exchange Contracts [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Fair Value, Gross Liability | 3.3 | 0.2 | 2.3
Other Hedging Activity [Member] | Prepaid Expenses and Other Current Assets [Member] | Foreign Exchange Contracts [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Gross Asset | 2.6 | 1.0 | 0.1
Other Hedging Activity [Member] | Accrued Expenses [Member] | Foreign Exchange Contracts [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Fair Value, Gross Liability | $ 0.2 | $ 0.0 | $ 0.9

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