Financial Instruments (Notional Amounts And Fair Values Of Derivatives Designated As Cash Flow Hedges And Derivatives Not Designated As Cash Flow Hedges) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Fair Value, Asset	$ 27.4	$ 9.3
Fair Value, Liability	0.8	2.9
Commodity futures
Derivatives, Fair Value [Line Items]
Notional Amount	106.1	142.5
Fair Value, Asset	26.1	9.2
Fair Value, Liability	0.1	1.8
Foreign currency exchange
Derivatives, Fair Value [Line Items]
Notional Amount	105.5	30.7
Fair Value, Asset	1.3	0.1
Fair Value, Liability	$ 0.7	$ 1.1

Notional amount of hedge instruments not designed as cash flow hedge.

No definition available.

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

+ Details

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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