Income Per Share from Continuing Operations (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Income Per Share from Continuing Operations

The

computation of income per share from continuing operations was as follows:

In millions except per share amounts	2014		2013		2012
Income from continuing operations	$	1,890	$	1,630	$	2,233
Income per share from continuing operations—Basic:
Weighted-average common shares	401.7		446.2		469.8
Income per share from continuing operations—Basic	$	4.70	$	3.65	$	4.75
Income per share from continuing operations—Diluted:
Weighted-average common shares	401.7		446.2		469.8
Effect of dilutive stock options and restricted stock units	2.9		3.1		3.4
Weighted-average common shares assuming dilution	404.6		449.3		473.2
Income per share from continuing operations—Diluted	$	4.67	$	3.63	$	4.72