Derivative Instruments (Effect of Derivative Instruments) (Details) - Designated as Hedging Instrument - Cash Flow Hedging - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Effect of derivative instruments designated as cash flow hedges
Net loss recognized in AOCI (a)	[1]	$ (4.2)	$ (3.1)	$ (8.2)	$ (2.9)
Net loss reclassified from AOCI into cost of sales (a)	[1]	(2.4)	(0.6)	(5.6)	(2.4)
Net foreign exchange (loss) gain recognized in other income and expense (b)	[2]	$ (0.1)	$ 0.2	$ 0.2	$ 0.5

[1] Effective portion, pre-tax

[2] Amount excluded from effectiveness testing