Derivatives (Details 4) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Cash Flow Hedging [Member] | Cost of Goods Sold [Member] | Commodity Futures Contracts [Member]
Amount of Loss or (Gain) Reclassified from AOCI into Income (Effective Portion):
Effective portion	$ 1.0	[1]	$ 2.1	[1]	$ 4.9	[1]	$ 3.3	[1]
Cash Flow Hedging [Member] | Other Expense [Member] | Commodity Futures Contracts [Member]
Amount of (Gain) or Loss Recognized in Income on Derivatives (Ineffective Portion):
Ineffective portion	0	[2]	(0.1)	[2]	0.1	[2]	0.2	[2]
Not Designated as Hedging Instrument [Member]
Amount of (Gain) or Loss Recognized in Income on Derivatives (Ineffective Portion):
Amount of (Gain) or Loss Recognized in Income on Derivatives	0.1		(1.2)		0.5		1.4
Not Designated as Hedging Instrument [Member] | Other Expense [Member] | Commodity Futures Contracts [Member]
Amount of (Gain) or Loss Recognized in Income on Derivatives (Ineffective Portion):
Amount of (Gain) or Loss Recognized in Income on Derivatives	0.3	[2]	(0.6)	[2]	0.6	[2]	1.2	[2]
Not Designated as Hedging Instrument [Member] | Other Expense [Member] | Foreign Currency Forward Contracts [Member]
Amount of (Gain) or Loss Recognized in Income on Derivatives (Ineffective Portion):
Amount of (Gain) or Loss Recognized in Income on Derivatives	$ (0.2)	[2]	$ (0.6)	[2]	$ (0.1)	[2]	$ 0.2	[2]

[1] The loss was recorded in Cost of goods sold in the accompanying Consolidated Statements of Operations.

[2] The loss (gain) was recorded in Losses (gains) and other expenses, net in the accompanying Consolidated Statements of Operations.