Derivative Instruments (Fair Values of Instruments) (Details) - USD ($) $ in Millions	Oct. 01, 2017	Jan. 01, 2017
Fair values of derivative financial instruments
Total (liability) asset derivatives	$ (4.1)	$ 4.3
Designated as Hedging Instrument
Fair values of derivative financial instruments
Total (liability) asset derivatives	(4.7)	(1.1)
Not Designated as Hedging Instrument
Fair values of derivative financial instruments
Total (liability) asset derivatives	0.6	5.4
Foreign Exchange Contract | Designated as Hedging Instrument | Other assets
Fair values of derivative financial instruments
Total (liability) asset derivatives	5.3	0.0
Foreign Exchange Contract | Designated as Hedging Instrument | Accrued liabilities
Fair values of derivative financial instruments
Total (liability) asset derivatives	0.0	(1.0)
Foreign Exchange Contract | Designated as Hedging Instrument | Other long-term liabilities
Fair values of derivative financial instruments
Total (liability) asset derivatives	0.0	(0.1)
Foreign Exchange Contract | Not Designated as Hedging Instrument | Accrued liabilities
Fair values of derivative financial instruments
Total (liability) asset derivatives	(4.1)	(1.0)
Foreign Exchange Contract | Not Designated as Hedging Instrument | Other current assets
Fair values of derivative financial instruments
Total (liability) asset derivatives	4.7	6.4
Currency Swap | Designated as Hedging Instrument | Accrued liabilities
Fair values of derivative financial instruments
Total (liability) asset derivatives	$ (10.0)	$ 0.0