Fair Value Measurements (Financial Assets and Liabilities Carried at Fair Value) (Details) - USD ($) $ in Millions	Apr. 03, 2020	Dec. 31, 2019
Assets:
Available-for-sale debt securities	$ 35.4	$ 33.7
Investment in equity securities	150.1	110.8
Cross-currency swap derivative contracts	658.0	25.7
Liabilities:
Cross-currency swap derivative contracts		111.7
Deferred compensation plans	71.4	70.4
Quoted Prices in Active Market (Level 1)
Assets:
Available-for-sale debt securities	0.0	0.0
Investment in equity securities	17.1	0.0
Cross-currency swap derivative contracts	0.0	0.0
Liabilities:
Cross-currency swap derivative contracts		0.0
Deferred compensation plans	0.0	0.0
Significant Other Observable Inputs (Level 2)
Assets:
Available-for-sale debt securities	35.4	33.7
Investment in equity securities	0.0	0.0
Cross-currency swap derivative contracts	658.0	25.7
Liabilities:
Cross-currency swap derivative contracts		111.7
Deferred compensation plans	71.4	70.4
Significant Unobservable Inputs (Level 3)
Assets:
Available-for-sale debt securities	0.0	0.0
Investment in equity securities	0.0	0.0
Cross-currency swap derivative contracts	0.0	0.0
Liabilities:
Cross-currency swap derivative contracts		0.0
Deferred compensation plans	$ 0.0	$ 0.0

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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-Name Accounting Standards Codification
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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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