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CASH FLOW INFORMATION (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
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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| Related Party Transaction [Line Items] | |||
| Acquisition of controlling interest | $ (8.0) | $ 1,075.4 | $ 173.1 |
| Gain on remeasurement of equity interest before acquisition | 0 | 0 | 40.7 |
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Freewest [Member]
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| Related Party Transaction [Line Items] | |||
| Acquisition of controlling interest (in shares) | 4.2 | ||
| Acquisition of controlling interest | 173.1 | ||
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Freewest and Wabush [Member]
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| Related Party Transaction [Line Items] | |||
| Gain on remeasurement of equity interest before acquisition | $ 38.6 | ||
| X | ||||||||||
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- Definition
In a business combination achieved in stages, this element represents the amount of net gain (loss) recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of shares of stock issued during the period pursuant to acquisitions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of stock issued pursuant to acquisitions during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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