Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES (Narrative) (Details)

v2.4.0.8
INVENTORIES (Narrative) (Details) (Cost of Sales [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Eastern Canadian Iron Ore [Member]
   
Inventory [Line Items]    
Inventory Write-down $ 13.4  
North American Coal [Member]
   
Inventory [Line Items]    
Inventory Write-down $ 22.1 $ 2.0