Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Jan. 02, 2016
Foreign exchange contracts [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 169.2	$ 192.6
Foreign exchange contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	2.1	23.2
Interest rate swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 496.0	$ 609.7