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Earnings Per Common Share
 12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Earnings Per Common Share [Text Block]
Earnings Per Common Share
Basic earnings per common share ("EPS") is based upon the weighted-average number of common shares outstanding during the period. Diluted EPS reflects the potential dilution that would occur upon issuance of common shares for awards under stock-based compensation plans, exercise of warrants, or conversion of preferred stock, but only to the extent that they are considered dilutive.
The following table shows the computation of basic and diluted EPS:
 
Year Ended December 31,
(in millions, except per share amounts)
2012
 
2011
 
2010
Numerator:
 
 
 
 
 
Net income
$
11.2

 
$
18.6

 
$
28.3

Preferred stock dividends
10.4

 
10.4

 
10.4

Income applicable to common shareowners - basic and diluted
$
0.8

 
$
8.2

 
$
17.9

Denominator:
 
 
 
 
 
Weighted-average common shares outstanding - basic
197.0

 
196.8

 
201.0

Warrants
4.5

 
0.4

 
0.6

Stock-based compensation arrangements
3.2

 
2.8

 
2.4

Weighted-average common shares outstanding - diluted
204.7

 
200.0

 
204.0

Basic earnings per common share
$
0.00

 
$
0.04

 
$
0.09

Diluted earnings per common share
$
0.00

 
$
0.04

 
$
0.09


For the years ended December 31, 2012, 2011, and 2010, awards under our stock-based compensation plans for common shares of 5.3 million, 11.4 million, and 14.5 million, respectively, were excluded from the computation of diluted EPS as their inclusion would have been anti-dilutive. For all periods presented, preferred stock convertible into 4.5 million common shares was excluded as it was anti-dilutive.