Hedging Transactions And Derivative Financial Instruments (Summary of Notional Values and Pretax Impact in Fair Values of Net Investment Hedges) (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 03, 2020	Mar. 29, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivative and nonderivative, original notional amount	$ 14,827.9	$ 9,393.3
Derivative and nonderivative, notional amount	13,102.9	9,393.3
Derivative and nonderivative, gain (loss) recognized in OCI	900.3	152.6
Net investment hedges \| Foreign currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	1,875.0	1,875.0
Derivative, notional amount outstanding	1,000.0	1,875.0
Derivative, gain (loss) recognized in OCI	93.3	14.8
Net investment hedges \| Foreign currency denominated debt
Derivative Instruments, Gain (Loss) [Line Items]
Nonderivative, notional amount	8,102.9	7,518.3
Nonderivative, gain (loss) recognized in OCI	156.2	$ 137.8
Cash flow hedges \| Foreign currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	4,000.0
Derivative, notional amount outstanding	4,000.0
Derivative, gain (loss) recognized in OCI	$ 650.8

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Nominal or face amount used to calculate payment on derivative.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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