Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER SHARE (Earnings Per Share Computation) (Details)

v2.4.0.8
EARNINGS PER SHARE (Earnings Per Share Computation) (Details) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Earnings Per Share [Abstract]        
Income from Continuing Operations Attributable to Parent $ 146.0 $ 255.7 $ 253.0 $ 626.0
Income from Discontinued Operations, net of tax 0 2.3 0 7.8
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 146.0 258.0 253.0 633.8
PREFERRED STOCK DIVIDENDS (12.9) 0 (22.8) 0
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS $ 133.1 $ 258.0 $ 230.2 $ 633.8
Weighted Average Number of Shares:        
Basic 153,011 142,380 150,418 142,303
Depositary Shares 25,217 0 19,063 0
Employee Stock Plans 200 434 227 459
Diluted 178,428 142,814 169,708 142,762
Earnings per Common Share Attributable to Cliffs Shareholders - Basic:        
Continuing operations $ 0.87 $ 1.79 $ 1.53 $ 4.40
Discontinued operations $ 0.00 $ 0.02 $ 0.00 $ 0.05
Earnings per Common Share Attributable to Cliffs Shareholders - Basic: $ 0.87 $ 1.81 $ 1.53 $ 4.45
Earnings per Common Share Attributable to Cliffs Shareholders - Diluted:        
Continuing operations $ 0.82 $ 1.79 $ 1.49 $ 4.39
Discontinued operations $ 0.00 $ 0.02 $ 0.00 $ 0.05
Earnings per Common Share Attributable to Cliffs Shareholders - Diluted: $ 0.82 $ 1.81 $ 1.49 $ 4.44