Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:

	Periods Ended September 30
	Third Quarter				Nine Months
	2012		2011		2012		2011
	(in millions, except for per share amounts)
Basic earnings per share:
Net income	$	533	$	298	$	1,443	$	1,226
Weighted average shares outstanding		267.3		285.7		271.0		292.6
Basic earnings per share	$	1.99	$	1.04	$	5.32	$	4.19
Diluted earnings per share:
Net income	$	533	$	298	$	1,443	$	1,226
Weighted average shares outstanding		267.3		285.7		271.0		292.6
Additional shares from assumed issuance of shares under stock-based compensation awards		1.9		2.1		1.9		1.8
Weighted average shares and potential shares assumed outstanding for computing diluted earnings per share		269.2		287.8		272.9		294.4
Diluted earnings per share	$	1.98	$	1.04	$	5.29	$	4.16