Inventories (Schedule Of Inventories) (Detail) (USD $)
In Millions, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
---|---|---|
Inventories [Line Items] | ||
Finished Goods | $ 504.8 | $ 291.3 |
Work-in Process | 236.2 | 184.4 |
Total Inventory | 741.0 | 475.7 |
U.S. Iron Ore [Member]
|
||
Inventories [Line Items] | ||
Finished Goods | 290.8 | 100.2 |
Work-in Process | 36.8 | 8.5 |
Total Inventory | 327.6 | 108.7 |
Eastern Canadian Iron Ore [Member]
|
||
Inventories [Line Items] | ||
Finished Goods | 103.6 | 96.2 |
Work-in Process | 50.8 | 43.0 |
Total Inventory | 154.4 | 139.2 |
North American Coal [Member]
|
||
Inventories [Line Items] | ||
Finished Goods | 61.7 | 19.7 |
Work-in Process | 90.2 | 110.5 |
Total Inventory | 151.9 | 130.2 |
Asia Pacific Iron Ore [Member]
|
||
Inventories [Line Items] | ||
Finished Goods | 27.2 | 57.2 |
Work-in Process | 57.2 | 21.6 |
Total Inventory | 84.4 | 78.8 |
Other Segment [Member]
|
||
Inventories [Line Items] | ||
Finished Goods | 21.5 | 18.0 |
Work-in Process | 1.2 | 0.8 |
Total Inventory | $ 22.7 | $ 18.8 |
X | ||||||||||
- Details
|
X | ||||||||||
- Definition
Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|