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Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments And Hedging Activities (Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value) (Details)

v2.3.0.15
Derivative Instruments And Hedging Activities (Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value) (Details) (USD $)
In Millions
Sep. 30, 2011
Dec. 31, 2010
Derivative Assets (Current) [Member] | Foreign Exchange Contracts [Member]
 Ìý Ìý
Derivatives assets designated as hedging instruments under ASC 815 $ 1.2 $ 2.8
Derivatives assets not designated as hedging instruments under ASC 815 4.6 34.2
Derivative Assets (Current) [Member] | Customer Supply Agreements [Member]
 Ìý Ìý
Derivatives assets not designated as hedging instruments under ASC 815 67.8 45.6
Foreign Exchange Contracts [Member] | Deposits And Miscellaneous [Member]
 Ìý Ìý
Derivatives assets not designated as hedging instruments under ASC 815 Ìý 2.0
Accounts Receivable [Member]
 Ìý Ìý
Total derivatives assets 49.0 Ìý
Accounts Receivable [Member] | Provisional Pricing Arrangements [Member]
 Ìý Ìý
Derivatives assets not designated as hedging instruments under ASC 815 49.0 Ìý
Foreign Exchange Contracts [Member] | Other Current Liabilities [Member]
 Ìý Ìý
Derivatives liabilities designated as hedging instruments under ASC 815 15.9 Ìý
Derivative Assets [Member]
 Ìý Ìý
Derivatives assets designated as hedging instruments under ASC 815 1.2 2.8
Derivatives assets not designated as hedging instruments under ASC 815 121.4 81.8
Total derivatives assets 122.6 84.6
Foreign Exchange Contracts [Member] | Derivative Liabilities [Member]
 Ìý Ìý
Derivatives liabilities designated as hedging instruments under ASC 815 Ìý Ìý
Derivatives liabilities not designated as hedging instruments under ASC 815 Ìý Ìý
Provisional Pricing Arrangements [Member] | Derivative Liabilities [Member]
 Ìý Ìý
Derivatives liabilities not designated as hedging instruments under ASC 815 Ìý Ìý
Customer Supply Agreements [Member] | Derivative Liabilities [Member]
 Ìý Ìý
Derivatives liabilities not designated as hedging instruments under ASC 815 Ìý Ìý
Derivative Liabilities [Member]
 Ìý Ìý
Derivatives liabilities designated as hedging instruments under ASC 815 15.9 Ìý
Derivatives liabilities not designated as hedging instruments under ASC 815 Ìý Ìý
Total derivative liabilities $ 15.9 Ìý