Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

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
	2015		2014		2015		2014
	(in millions, except for per share amounts)
Basic earnings per share:
Net income	$	601	$	594	$	1,470	$	1,542
Weighted average shares outstanding		229.4		240.2		231.2		244.8
Basic earnings per share	$	2.62	$	2.47	$	6.36	$	6.30
Diluted earnings per share:
Net income	$	601	$	594	$	1,470	$	1,542
Weighted average shares outstanding		229.4		240.2		231.2		244.8
Additional shares from assumed issuance of shares under stock-based compensation awards		1.7		.4		.9		.6
Weighted average shares and potential shares assumed outstanding for computing diluted earnings per share		231.1		240.6		232.1		245.4
Diluted earnings per share	$	2.60	$	2.47	$	6.33	$	6.28