日韩三级片

Quarterly report pursuant to Section 13 or 15(d)

Basis Of Presentation And Significant Accounting Policies (Schedule Of Subsidiaries) (Details)

v2.4.0.6
Basis Of Presentation And Significant Accounting Policies (Schedule Of Subsidiaries) (Details)
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Northshore [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Minnesota 听
Ownership interest, percent 100.00% 听
Operation Iron Ore 听
United Taconite [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Minnesota 听
Ownership interest, percent 100.00% 听
Operation Iron Ore 听
Wabush [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Labrador/Quebec, Canada 听
Ownership interest, percent 100.00% 听
Operation Iron Ore 听
Bloom Lake [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Quebec, Canada 听
Ownership interest, percent 75.00% 75.00%
Operation Iron Ore 听
Tilden [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Michigan 听
Ownership interest, percent 85.00% 85.00%
Operation Iron Ore 听
Empire [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Michigan 听
Ownership interest, percent 79.00% 79.00%
Operation Iron Ore 听
Koolyanobbing [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Western Australia 听
Ownership interest, percent 100.00% 听
Operation Iron Ore 听
Pinnacle [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location West Virginia 听
Ownership interest, percent 100.00% 听
Operation Coal 听
Oak Grove [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location Alabama 听
Ownership interest, percent 100.00% 听
Operation Coal 听
CLCC [Member]
 听 听
Related Party Transaction [Line Items] 听 听
Location West Virginia 听
Ownership interest, percent 100.00% 听
Operation Coal 听