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RELATED PARTIES (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
6 Months Ended | |||||
|---|---|---|---|---|---|---|
|
Jun. 30, 2013
|
Dec. 31, 2012
|
Jun. 30, 2013
U.S. Iron Ore [Member]
Facility
|
Jun. 30, 2013
Eastern Canadian Iron Ore [Member]
Facility
|
Jun. 30, 2013
Joint Venture Partners [Member]
U.S. Iron Ore [Member]
Facility
|
Jun. 30, 2013
Joint Venture Partners [Member]
Eastern Canadian Iron Ore [Member]
Facility
|
|
| Segment Reporting Information [Line Items] | ||||||
| Number of mines (in number of facilities) | 5 | 2 | 3 | 1 | ||
| Accounts receivable and derivative assets related parties | $ 155.4 | $ 149.8 | ||||
| Other current liabilities related parties | $ 25.3 | $ 20.2 | ||||
| X | ||||||||||
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- Definition
Accounts receivable and derivative assets related parties No definition available.
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| X | ||||||||||
|
- Definition
Number of mines No definition available.
|
| X | ||||||||||
|
- Definition
Other current liabilities related parties No definition available.
|
| X | ||||||||||
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- Details
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