Fair Value Measurements (Carrying Amounts and Fair Values of Financial Instruments) (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
Carrying Amount
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	0.0	111.7
Notes payable and current portion of long-term debt	17.2	212.4
Long-term debt	22,370.0	21,516.7
Fair Value
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	0.0	111.7
Notes payable and current portion of long-term debt	17.2	212.4
Long-term debt	$ 23,189.5	$ 21,896.9