Three Months Ended

Nine Months Ended

(in millions, except per share data)

February 29,

February 28,

February 29,

February 28,

2016

2015

2016

2015

Net income

$

2,142

$

2,495

$

6,087

$

7,181

Weighted average common shares outstanding

4,182

4,389

4,246

4,419

Dilutive effect of employee stock plans

74

105

82

97

Dilutive weighted average common shares outstanding

4,256

4,494

4,328

4,516

Basic earnings per share

$

0.51

$

0.57

$

1.43

$

1.63

Diluted earnings per share

$

0.50

$

0.56

$

1.41

$

1.59

Shares subject to anti-dilutive stock options and restricted stock-based awards excluded from calculation(1)

67

39

62

36