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Earnings Per Share (Details 2)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Employee Non Employee Stock Option
       
Share-based Compensation Arrangement by Share-based Payment Award        
Anti-dilutive shares excluded from the EPS calculations 4.2 4.1 4.1 4.3
Non Vested Stock
       
Share-based Compensation Arrangement by Share-based Payment Award        
Anti-dilutive shares excluded from the EPS calculations 0.5 0