Derivatives (Fair Value of Derivative Instruments) (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Assets	$ 0.3	$ 0.0
Total Liabilities	6.1	13.3
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.0	0.0
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.3	0.0
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	5.4	12.5
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.2	0.4
Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.0	0.0
Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.5	0.4
Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member] | Other Non-Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.0	0.0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Assets	1.1	0.2
Total Liabilities	0.5	1.5
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.0	0.0
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.0	0.0
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.6	1.5
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.0	0.0
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	1.1	0.2
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	(0.1)	0.0
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member] | Other Non-Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	$ 0.0	$ 0.0