|
Derivative Instruments And Hedging Activities (Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value) (Detail) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | $ 79.4 | $ 165.9 |
| Derivative liability, fair value | 13.0 | 23.0 |
|
Accounts Receivable [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 83.8 | |
|
Designated as Hedging Instrument [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 22.4 | 5.2 |
| Derivative liability, fair value | 1.3 | 3.5 |
|
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Derivative Assets (Current) [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 22.4 | 5.2 |
|
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Current Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative liability, fair value | 1.3 | 3.5 |
|
Not Designated as Hedging Instrument [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 57.0 | 160.7 |
| Derivative liability, fair value | 11.7 | 19.5 |
|
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | ||
| Derivative liability, fair value | ||
|
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Derivative Assets (Current) [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 2.8 | |
|
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Assets Held-for-sale [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 1.1 | |
|
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Liabilities Of Assets Held For Sale [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative liability, fair value | ||
|
Not Designated as Hedging Instrument [Member] | Customer Contracts [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative liability, fair value | ||
|
Not Designated as Hedging Instrument [Member] | Customer Contracts [Member] | Derivative Assets (Current) [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 72.9 | |
|
Not Designated as Hedging Instrument [Member] | Provisional Pricing Arrangements [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | ||
| Derivative liability, fair value | ||
|
Not Designated as Hedging Instrument [Member] | Provisional Pricing Arrangements [Member] | Derivative Assets (Current) [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 1.2 | |
|
Not Designated as Hedging Instrument [Member] | Provisional Pricing Arrangements [Member] | Accounts Receivable [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 83.8 | |
|
Not Designated as Hedging Instrument [Member] | Provisional Pricing Arrangements [Member] | Other Current Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative liability, fair value | 11.7 | 19.5 |
|
Market Approach [Member] | Provisional Pricing Arrangements [Member] | Managements Estimate Of 62% Fee [Member] | Not Designated as Hedging Instrument [Member] | Provisional Pricing Arrangements [Member] | Derivative Assets (Current) [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | 1.4 | |
|
Market Approach [Member] | Customer Contracts [Member] | Hot-Rolled Steel Estimate [Member] | Not Designated as Hedging Instrument [Member] | Customer Contracts [Member] | Derivative Assets (Current) [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Derivative asset, fair value | $ 54.5 |