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FAIR VALUE OF FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS (Impairment Charges on Financial and Nonfinancial Assets) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | 3 Months Ended | 12 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, 2012
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member]
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Dec. 31, 2012
Significant Other Observable Inputs (Level 2) [Member]
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Dec. 31, 2012
Significant Unobservable Inputs (Level 3) [Member]
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Dec. 31, 2012
Amapa [Member]
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Dec. 31, 2012
Amapa [Member]
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member]
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Dec. 31, 2012
Amapa [Member]
Significant Other Observable Inputs (Level 2) [Member]
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Dec. 31, 2012
Amapa [Member]
Significant Unobservable Inputs (Level 3) [Member]
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Dec. 31, 2012
CQIM Reporting Unit [Member]
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Dec. 31, 2012
CQIM Reporting Unit [Member]
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member]
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Dec. 31, 2012
CQIM Reporting Unit [Member]
Significant Other Observable Inputs (Level 2) [Member]
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Dec. 31, 2012
CQIM Reporting Unit [Member]
Significant Unobservable Inputs (Level 3) [Member]
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Dec. 31, 2012
Wabush [Member]
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Dec. 31, 2012
Wabush [Member]
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Dec. 31, 2012
Wabush [Member]
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member]
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Dec. 31, 2012
Wabush [Member]
Significant Other Observable Inputs (Level 2) [Member]
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Dec. 31, 2012
Wabush [Member]
Significant Unobservable Inputs (Level 3) [Member]
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Dec. 31, 2012
Equity Method Investments [Member]
Amapa [Member]
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| ASSETS: | |||||||||||||||||||
| Impaired assets, fair value | $ 72.5 | $ 0 | $ 0 | $ 72.5 | |||||||||||||||
| Property, Plant, and Equipment, Fair Value Disclosure | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
| Equity Method Investments, Fair Value Disclosure | 72.5 | 0 | 0 | 72.5 | |||||||||||||||
| Goodwill, Fair Value Disclosure | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| Impairment of goodwill | 1,000.0 | 27.8 | 997.3 | 2.7 | 2.7 | ||||||||||||||
| Impairment of long-lived assets | 49.9 | ||||||||||||||||||
| Impairment of equity method investment | 365.4 | ||||||||||||||||||
| Total impairment | $ 1,415.3 | ||||||||||||||||||
| X | ||||||||||
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- Definition
Impaired Assets, Fair Value Disclosure No definition available.
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| X | ||||||||||
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- Definition
Impairment charges including, but not limited to, impairment charges related to intangible and tangible assets, investment, and goodwill. No definition available.
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- Details
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| X | ||||||||||
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- Definition
This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments accounted for under the equity method of accounting as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the cumulative amount paid in excess of fair value for acquired assets from one or more business combinations, after to the initial recording thereof. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software, net of accumulated depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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