Derivatives (Fair Value of Derivative Instruments) (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Assets	$ 1.7	$ 0.0
Total Liabilities	2.5	13.3
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	1.1	0.0
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.6	0.0
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	2.0	12.5
Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.1	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	0.4	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	0.6	0.2
Total Liabilities	0.3	1.5
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.1	0.0
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Other Non-Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total Assets	0.1	0.0
Not Designated as Hedging Instrument [Member] | Commodity Futures Contracts [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Total Liabilities	0.2	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	0.4	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