Derivative Instruments (Fair Values of Instruments) (Details) - USD ($) $ in Millions	Sep. 27, 2015	Dec. 28, 2014
Fair values of derivative financial instruments
Total asset/(liability) derivatives	$ (9.2)	$ (8.4)
Designated as Hedging Instrument
Fair values of derivative financial instruments
Total asset/(liability) derivatives	(6.7)	(3.9)
Not Designated as Hedging Instrument
Fair values of derivative financial instruments
Total asset/(liability) derivatives	(2.5)	(4.5)
Foreign Exchange Contract | Designated as Hedging Instrument | Accrued liabilities
Fair values of derivative financial instruments
Total asset/(liability) derivatives	(6.7)	(3.9)
Foreign Exchange Contract | Not Designated as Hedging Instrument | Other current assets
Fair values of derivative financial instruments
Total asset/(liability) derivatives	0.0	0.3
Foreign Exchange Contract | Not Designated as Hedging Instrument | Accrued liabilities
Fair values of derivative financial instruments
Total asset/(liability) derivatives	$ (2.5)	$ (4.8)