Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Basic and Diluted EPS
The following table presents the calculation of basic and diluted earnings per share ("EPS") (in millions, except per share amounts):
 
For the Three Months Ended March 31,
 
2015
 
2014
Numerator:
 
 
 
Net income
$
586

 
$
631

Preferred stock dividends
(9
)
 
(9
)
Net income available to common stockholders
577

 
622

Income allocated to participating securities
(4
)
 
(4
)
Net income allocated to common stockholders
$
573

 
$
618

Denominator:
 
 
 
Weighted-average shares of common stock outstanding
448

 
471

Effect of dilutive common stock equivalents

 
1

Weighted-average shares of common stock outstanding and common stock equivalents
448

 
472

Basic earnings per common share
$
1.28

 
$
1.31

Diluted earnings per common share
$
1.28

 
$
1.31