Fair Value Measurements (Financial Assets and Liabilities Carried at Fair Value) (Details) - USD ($) $ in Millions	Jul. 03, 2020	Dec. 31, 2019
Assets:
Available-for-sale debt securities	$ 31.3	$ 33.7
Investment in equity securities	198.5	110.8
Cross-currency swap derivative contracts	278.2	25.7
Liabilities:
Cross-currency swap derivative contracts		111.7
Deferred compensation plans	89.3	70.4
Quoted Prices in Active Market (Level 1)
Assets:
Available-for-sale debt securities	0.0	0.0
Investment in equity securities	16.6	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	31.3	33.7
Investment in equity securities	0.0	0.0
Cross-currency swap derivative contracts	278.2	25.7
Liabilities:
Cross-currency swap derivative contracts		111.7
Deferred compensation plans	89.3	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