Basic and Diluted Earnings Per Share (Tables)

12 Months Ended

May 31, 2014

Earnings Per Share [Abstract]

Basic and diluted earnings per share

Basic and diluted earnings per share were calculated as follows:

	Year ended May 31,
In millions, except per share amounts	2014		2013		2012
Basic earnings per share:
Net income	$	627.5	$	569.0	$	548.0
Weighted-average common shares outstanding	364.5		363.8		362.4
Basic earnings per share	$	1.72	$	1.56	$	1.51
Diluted earnings per share:
Net income	$	627.5	$	569.0	$	548.0
Weighted-average common shares outstanding	364.5		363.8		362.4
Dilutive effect of common share equivalents	1.6		0.9		0.6
Weighted-average common shares outstanding, assuming dilution	366.1		364.7		363.0
Diluted earnings per share	$	1.71	$	1.56	$	1.51
Weighted-average anti-dilutive common share equivalents	0.7		6.5		9.9