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Earnings (Loss) Per Share (Details 2)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dilutive potential shares excluded from calculation of earnings per share due to the loss position    
Dilutive potential shares excluded from calculation of earnings per share due to the loss position   6.4
Options
   
Anti-dilutive shares excluded from calculation of earnings per share    
Anti-dilutive shares excluded from calculation of earnigns per share 6.9 12.9