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PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 3 Months Ended | 12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2012
Wabush [Member]
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Dec. 31, 2012
Construction in Progress [Member]
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| Property, Plant and Equipment [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý |
| Depreciation | $ 293.5 | $ 237.8 | $ 165.4 | Ìý | Ìý |
| Accumulated amount of capitalized interest included within construction in progress | Ìý | Ìý | Ìý | Ìý | 17.1 |
| Interest costs capitalized during the period | Ìý | Ìý | Ìý | Ìý | 15.4 |
| Impairment of goodwill and other long-lived assets | 1,049.9 | 27.8 | 0 | 49.9 | Ìý |
| Depletion | $ 209.8 | $ 159.7 | $ 95.5 | Ìý | Ìý |
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- Definition
Amount of accumulated interest costs capitalized as part of property, plant and equipment cost basis. No definition available.
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- Definition
The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The noncash expense charged against earnings to recognize the consumption of natural resources. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of interest capitalized during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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