Computation of Earnings Per Share (Tables)

6 Months Ended

Nov. 30, 2014

Computation Of Earnings Per Share (Tables) [Abstract]

Schedule of basic and diluted earnings per common share

	Three Months Ended				Six Months Ended
	2014		2013		2014		2013
Basic earnings per common share:
Net earnings allocable to common shares(1)	$	615	$	499	$	1,220	$	988
Weighted-average common shares		283		315		284		316
Basic earnings per common share	$	2.17	$	1.58	$	4.30	$	3.13
Diluted earnings per common share:
Net earnings allocable to common shares(1)	$	615	$	499	$	1,220	$	988
Weighted-average common shares		283		315		284		316
Dilutive effect of share-based awards		4		4		4		3
Weighted-average diluted shares		287		319		288		319
Diluted earnings per common share	$	2.14	$	1.57	$	4.24	$	3.10
Anti-dilutive options excluded from diluted
earnings per common share		2.2		2.5		2.2		6.2

(1) Net earnings available to participating securities were immaterial in all periods presented.