Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - USD ($) $ in Millions	Mar. 30, 2019	Dec. 29, 2018	Mar. 31, 2018
Foreign exchange contracts [Member] | Hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 235.3	$ 220.3	$ 198.9
Foreign exchange contracts [Member] | Non-hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	0.0	4.8	5.5
Interest rate swaps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	162.5	181.3	442.0
Cross currency swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 79.8	$ 95.8	$ 106.4