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Earnings Per Common Share
 12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
Earnings per Common Share
The following table presents the calculation of basic and diluted earnings per common share.
Year ended December 31, ($ in millions except per share data)
 
2014
 
2013
 
2012
Net income from continuing operations
 
$
925

 
$
416

 
$
1,370

Preferred stock dividends — U.S. Department of the Treasury
 
—

 
(543
)
 
(535
)
Impact of repurchase of mandatorily convertible preferred stock held by U.S. Department of the Treasury and elimination of share adjustment right
 
—

 
(240
)
 
—

Preferred stock dividends
 
(268
)
 
(267
)
 
(267
)
Net income (loss) from continuing operations attributable to common shareholders 
 
657

 
(634
)
 
568

Income (loss) from discontinued operations, net of tax
 
225

 
(55
)
 
(174
)
Net income (loss) attributable to common shareholders
 
$
882

 
$
(689
)
 
$
394

Basic weighted-average common shares outstanding (a)
 
481,154,609

 
420,166,188

 
412,600,700

Diluted weighted-average common shares outstanding (a) (b)
 
481,933,811

 
420,166,188

 
412,600,700

Basic earnings per common share
 
 
 
 
 
 
Net income (loss) from continuing operations
 
$
1.36

 
$
(1.51
)
 
$
1.38

Income (loss) from discontinued operations, net of tax
 
0.47

 
(0.13
)
 
(0.42
)
Net income (loss)
 
$
1.83

 
$
(1.64
)
 
$
0.96

Diluted earnings per common share 
 
 
 
 
 
 
Net income (loss) from continuing operations
 
$
1.36

 
$
(1.51
)
 
$
1.38

Income (loss) from discontinued operations, net of tax
 
0.47

 
(0.13
)
 
(0.42
)
Net income (loss)
 
$
1.83

 
$
(1.64
)
 
$
0.96

(a)
Includes shares related to share-based compensation that have vested but have not been issued for the year ended December 31, 2014.
(b)
Due to the antidilutive effect of converting the Fixed Rate Cumulative Mandatorily Convertible Preferred Stock into common shares and the net loss from continuing operations attributable to common shareholders for 2013, net (loss) income from continuing operations attributable to common shareholders and basic weighted-average common shares outstanding were used to calculate basic and diluted earnings per share.
The effects of converting the outstanding Fixed Rate Cumulative Mandatorily Convertible Preferred Stock into common shares are not included in the diluted earnings per share calculation for the years ended December 31, 2013, and 2012, respectively, as the effects would be antidilutive for those periods. As such, 89 million, and 178 million of potential common shares were excluded from the diluted earnings per share calculation for the years ended December 31, 2013, and 2012, respectively.