Earnings Per Share (Notes)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Earnings per share is computed using the two-class method. Options to purchase approximately 4.1 million and 2.8 million shares of common stock were outstanding, but were not included in the calculation of diluted earnings per share for the three and nine months ended September 30, 2014, respectively, because the options’ exercise prices were greater than the average market price of the common shares and, therefore, the effect would be antidilutive. For the same reason, options to purchase approximately 8.2 million and 5.7 million shares of common stock were outstanding, but were not included in the calculation of diluted earnings per share for the three and nine months ended September 30, 2013, respectively.

The following is a reconciliation of basic and diluted earnings per share from continuing operations for the respective periods:

	Three Months Ended September 30,				Nine Months Ended September 30,
In millions, except per share amounts	2014		2013		2014		2013
Numerator for earnings per share calculations:
Income from continuing operations attributable to common      stockholders(1)	$	944	$	1,255	$	3,310	$	3,334
Denominators for earnings per share calculations:
Weighted average shares, basic	1,157		1,218		1,167		1,226
Effect of dilutive securities	7		8		8		8
Weighted average shares, diluted	1,164		1,226		1,175		1,234
Earnings per share from continuing operations:
Basic	$	0.82	$	1.03	$	2.84	$	2.72
Diluted	$	0.81	$	1.02	$	2.82	$	2.70

(1) Comprised of income from continuing operations less amounts allocable to participating securities of $4 million and $13 million for the three and nine months ended September 30, 2014.