Derivatives Gain (Loss) Recognized for Designated and Undesignated Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Income [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ (1.6)	$ 0.0	$ 0.0
Other Income [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Description of Location of Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments in Financial Statements		Other Income (Expense), Net
Cost of Sales [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ (4.0)	(1.8)	0.1
Cost of Sales [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ (10.9)	$ 0.9	$ 2.8
Derivative Instruments, Income Statement Location of Gain (Loss) Reclassified from Accumulated OCI		Cost of Goods Sold		Cost of Goods Sold
Description of Location of Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments in Financial Statements		Cost of Goods Sold
Scenario, Forecast [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (7.5)