EARNINGS PER SHARE

6 Months Ended

Nov. 30, 2015

Earnings Per Share [Abstract]

EARNINGS PER SHARE

12.    EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income for the period by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income for the period by the weighted average number of common shares outstanding during the period, plus the dilutive effect of outstanding stock options, restricted stock-based awards and shares issuable under the employee stock purchase plan using the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share:

	Three Months Ended November 30,				Six Months Ended November 30,
(in millions, except per share data)	2015		2014		2015		2014
Net income	$	2,197	$	2,502	$	3,945	$	4,685
Weighted average common shares outstanding		4,239		4,417		4,278		4,434
Dilutive effect of employee stock plans		77		88		86		93
Dilutive weighted average common shares outstanding		4,316		4,505		4,364		4,527
Basic earnings per share	$	0.52	$	0.57	$	0.92	$	1.06
Diluted earnings per share	$	0.51	$	0.56	$	0.90	$	1.04
Shares subject to anti-dilutive stock options and restricted stock-based awards excluded from calculation(1)		65		44		61		35

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(1) These weighted shares relate to anti-dilutive stock options and restricted stock-based awards as calculated using the treasury stock method and could be dilutive in the future.