Computation of Earnings Per Share (Tables)

6 Months Ended

Nov. 30, 2015

Computation Of Earnings Per Share (Tables) [Abstract]

Schedule of basic and diluted earnings per common share

	Three Months Ended				Six Months Ended
	2015		2014		2015		2014
Basic earnings per common share:
Net earnings allocable to common shares(1)	$	690	$	662	$	1,382	$	1,315
Weighted-average common shares		279		283		281		284
Basic earnings per common share	$	2.47	$	2.34	$	4.92	$	4.63
Diluted earnings per common share:
Net earnings allocable to common shares(1)	$	690	$	662	$	1,382	$	1,315
Weighted-average common shares		279		283		281		284
Dilutive effect of share-based awards		4		4		3		4
Weighted-average diluted shares		283		287		284		288
Diluted earnings per common share	$	2.44	$	2.31	$	4.86	$	4.57
Anti-dilutive options excluded from diluted
earnings per common share		3.7		2.2		3.6		2.2

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