Fair Value Measurements (Carrying Amounts and Fair Values of Financial Instruments) (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
Carrying Amount
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	0.0	111.7
Notes payable and current portion of long-term debt	3,234.3	212.4
Long-term debt	22,737.2	21,516.7
Fair Value
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	0.0	111.7
Notes payable and current portion of long-term debt	3,234.3	212.4
Long-term debt	$ 22,042.6	$ 21,896.9