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Earnings Per Share (Tables) | 9 Months Ended
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Feb. 28, 2017
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following is a reconciliation from basic earnings per common share to diluted earnings per common share. The computations of diluted earnings per common share excluded options, including shares under employee stock purchase plans (ESPPs), to purchase an additional 31.1 million and 20.1 million shares of common stock outstanding for the three months ended February 28, 2017 and February 29, 2016, respectively, and 31.0 million and 1.1 million shares of common stock outstanding for the nine months ended February 28, 2017 and February 29, 2016, respectively, because the options were anti-dilutive.
|  | Three Months Ended |  | Nine Months Ended
(In millions, except per share data) |  | February 28, 2017 |  | February 29, 2016 |  | February 28, 2017 |  | February 29, 2016
Determination of shares: |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  | 1,653.1 |  |  | 1,693.8 |  |  | 1,661.5 |  |  | 1,703.2 |
Assumed conversion of dilutive stock options and awards |  | 33.2 |  |  | 43.5 |  |  | 34.9 |  |  | 45.3 |
DILUTED WEIGHTED AVERAGE COMMON SHARES OUTSTANDING |  | 1,686.3 |  |  | 1,737.3 |  |  | 1,696.4 |  |  | 1,748.5 |
Earnings per common share: |  |  |  |  |  |  |  |
Basic |  | $ | 0.69 |  |  | $ | 0.56 |  |  | $ | 1.95 |  |  | $ | 1.71 |
Diluted |  | $ | 0.68 |  |  | $ | 0.55 |  |  | $ | 1.91 |  |  | $ | 1.67 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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