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Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY Schedule of Shareholders' Equity (Details)

v2.4.0.8
SHAREHOLDERS' EQUITY Schedule of Shareholders' Equity (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Stockholders' Equity Attributable to Parent $ 30.7 Ìý $ 30.7 Ìý $ 6,069.5 Ìý
Stockholders' Equity Attributable to Noncontrolling Interest (208.0) Ìý (208.0) Ìý 814.8 Ìý
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (177.3) 6,934.6 (177.3) 6,934.6 6,884.3 5,760.9
NET INCOME (LOSS) ATTRIBUTABLE TO CLIFFS SHAREHOLDERS (5,879.6) 117.2 (5,939.0) 370.2 Ìý Ìý
INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTEREST (1,007.6) (3.3) (1,004.4) 5.8 Ìý Ìý
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest (6,887.2) 113.9 (6,943.4) 376.0 Ìý Ìý
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent (5,960.8) 178.4 (5,927.5) 247.4 Ìý Ìý
Other Comprehensive Income (Loss), Net of Tax (80.7) 62.1 13.1 (119.6) Ìý Ìý
OTHER COMPREHENSIVE INCOME ATTRIBUTABLE TO THE NONCONTROLLING INTEREST (0.5) (0.9) (1.6) (3.2) Ìý Ìý
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Ìý Ìý (6,930.3) 256.4 Ìý Ìý
Stock and Other Incentive Plans Ìý Ìý (3.4) 9.6 Ìý Ìý
Common and preferred share dividends Ìý Ìý (107.9) (104.7) Ìý Ìý
Undistributed Gains To Noncontrolling Interest Ìý Ìý (20.0) Ìý Ìý Ìý
Capital Contribution By Noncontrolling Interest Ìý Ìý Ìý 17.7 Ìý Ìý
Cliffs Shareholders Equity [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stockholders' Equity Attributable to Parent 30.7 5,779.7 30.7 5,779.7 6,069.5 4,632.7
NET INCOME (LOSS) ATTRIBUTABLE TO CLIFFS SHAREHOLDERS Ìý Ìý (5,939.0) 370.2 Ìý Ìý
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ìý Ìý 11.5 (122.8) Ìý Ìý
Comprehensive Income (Loss), Net of Tax, Attributable to Parent Ìý Ìý (5,927.5) 247.4 Ìý Ìý
Stock and Other Incentive Plans Ìý Ìý (3.4) 9.6 Ìý Ìý
Common and preferred share dividends Ìý Ìý (107.9) (104.7) Ìý Ìý
Undistributed Gains To Noncontrolling Interest Ìý Ìý 0 Ìý Ìý Ìý
Capital Contribution By Noncontrolling Interest Ìý Ìý Ìý 0 Ìý Ìý
Noncontrolling Interest [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stockholders' Equity Attributable to Noncontrolling Interest (208.0) 1,154.9 (208.0) 1,154.9 814.8 1,128.2
INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTEREST Ìý Ìý (1,004.4) 5.8 Ìý Ìý
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Ìý Ìý 1.6 3.2 Ìý Ìý
OTHER COMPREHENSIVE INCOME ATTRIBUTABLE TO THE NONCONTROLLING INTEREST Ìý Ìý (1,002.8) 9.0 Ìý Ìý
Stock and Other Incentive Plans Ìý Ìý 0 0 Ìý Ìý
Common and preferred share dividends Ìý Ìý 0 0 Ìý Ìý
Undistributed Gains To Noncontrolling Interest Ìý Ìý (20.0) Ìý Ìý Ìý
Capital Contribution By Noncontrolling Interest Ìý Ìý Ìý 17.7 Ìý Ìý
Common Stock [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period, Value, New Issues Ìý Ìý Ìý 285.3 Ìý Ìý
Common Stock [Member] | Cliffs Shareholders Equity [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period, Value, New Issues Ìý Ìý Ìý 285.3 Ìý Ìý
Common Stock [Member] | Noncontrolling Interest [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period, Value, New Issues Ìý Ìý Ìý 0 Ìý Ìý
Preferred Class A [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period, Value, New Issues Ìý Ìý Ìý 709.4 Ìý Ìý
Preferred Class A [Member] | Cliffs Shareholders Equity [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period, Value, New Issues Ìý Ìý Ìý 709.4 Ìý Ìý
Preferred Class A [Member] | Noncontrolling Interest [Member]
Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period, Value, New Issues Ìý Ìý Ìý $ 0 Ìý Ìý