Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Earnings Per Share (Details)

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Basic and Diluted Earnings Per Share (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Aug. 31, 2014
Aug. 31, 2013
Basic earnings per share:    
Net income $ 171.3 $ 162.8
Weighted-average common shares outstanding 363.1 365.3
Basic earnings per share $ 0.47 $ 0.45
Diluted earnings per share:    
Net income $ 171.3 $ 162.8
Weighted-average common shares outstanding 363.1 365.3
Dilutive effect of common share equivalents 1.6 1.4
Weighted-average common shares outstanding, assuming dilution 364.7 366.7
Diluted earnings per share $ 0.47 $ 0.44
Weighted-average anti-dilutive common share equivalents 0.5 0.8