Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - USD ($) $ in Millions	Sep. 28, 2019	Dec. 29, 2018	Sep. 29, 2018
Foreign Exchange Contract [Member] | Hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 237.7	$ 220.3	$ 215.5
Foreign Exchange Contract [Member] | Non-hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	0.0	4.8	8.1
Interest Rate Swap [Member] | Hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	366.2	181.3	376.1
Cross Currency Interest Rate Contract [Member] | Hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 79.8	$ 95.8	$ 95.8