Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Antidilutive Securities Excluded From Computation Of Earnings Per Share

For the year ended December 31, 2012, the following shares of unvested restricted stock and cumulative convertible preferred stock and associated adjustments to net income, consisting of dividends on such shares, were not included in the calculation of diluted EPS, as the effect was antidilutive:



	Net Income Adjustments		Shares
	($ in millions)		(in millions)
Year Ended December 31, 2012:
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock	$	86	56
5.75% cumulative convertible preferred stock (series A)	$	63	39
5.00% cumulative convertible preferred stock (series 2005B)	$	10	5
4.50% cumulative convertible preferred stock	$	12	6
Unvested restricted stock	$	—	5

Reconciliation of Basic Earnings Per Share and Diluted Earnings Per Share

A reconciliation of basic EPS and diluted EPS for 2011 and 2010 is as follows:



	Income (Numerator)		Weighted Average Shares (Denominator)	Per Share Amount
	(in millions, except per share data)
For the Year Ended December 31, 2011:
Basic EPS	$	1,570	637	$	2.47
Effect of Dilutive Securities:
Assumed conversion as of the beginning of the period of preferred shares outstanding during the period:
Common shares assumed issued for 5.75% cumulative convertible preferred stock	86		55
Common shares assumed issued for 5.75% cumulative convertible preferred stock (series A)	63		39
Common shares assumed issued for 5.00% cumulative convertible preferred stock (series 2005B)	11		5
Common shares assumed issued for 4.50% cumulative convertible preferred stock	12		6
Unvested restricted stock	—		9
Outstanding stock options	—		1
Diluted EPS	$	1,742	752	$	2.32

For the Year Ended December 31, 2010:
Basic EPS	$	1,663	631	$	2.63
Effect of Dilutive Securities:
Assumed conversion as of the beginning of the period of preferred shares outstanding during the period:
Common shares assumed issued for 5.75% cumulative convertible preferred stock	49		32
Common shares assumed issued for 5.75% cumulative convertible preferred stock (series A)	39		25
Common shares assumed issued for 5.00% cumulative convertible preferred stock (series 2005B)	11		5
Common shares assumed issued for 4.50% cumulative convertible preferred stock	12		6
Unvested restricted stock	—		6
Outstanding stock options	—		1
Diluted EPS	$	1,774	706	$	2.51