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Hedging Transactions And Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended
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Apr. 03, 2020 | Mar. 29, 2019
Derivative [Line Items] |  |
Reclassification from AOCI, before tax | $ 128.0 | $ (7.1)
Net investment hedges | Foreign currency contracts |  |
Derivative [Line Items] |  |
Derivative, notional amount outstanding | 1,000.0 | 1,875.0
Derivative, original notional amount | 1,875.0 | 1,875.0
Cash Flow Hedge Adjustments |  |
Derivative [Line Items] |  |
Reclassification from AOCI, before tax | 138.8 | $ 0.0
Cash Flow Hedge Adjustments | Foreign currency contracts |  |
Derivative [Line Items] |  |
Reclassification from AOCI, before tax | (139.0) |
Cash Flow Hedge Adjustments | Interest rate swap |  |
Derivative [Line Items] |  |
Reclassification from AOCI, before tax | $ (1.0) |

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