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Earnings Per Share (Tables) | 12 Months Ended
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May 31, 2018
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, to purchase an additional 42.9 million, 30.5 million and 0.2 million shares of common stock outstanding for the years ended May 31, 2018, 2017 and 2016, respectively, because the options were anti-dilutive.
|  | Year Ended May 31,
(In millions, except per share data) |  | 2018 |  | 2017 |  | 2016
Determination of shares: |  |  |  |  |  |
Weighted average common shares outstanding |  | 1,623.8 |  |  | 1,657.8 |  |  | 1,697.9 |
Assumed conversion of dilutive stock options and awards |  | 35.3 |  |  | 34.2 |  |  | 44.6 |
DILUTED WEIGHTED AVERAGE COMMON SHARES OUTSTANDING |  | 1,659.1 |  |  | 1,692.0 |  |  | 1,742.5 |
Earnings per common share: |  |  |  |  |  |
Basic |  | $ | 1.19 |  |  | $ | 2.56 |  |  | $ | 2.21 |
Diluted |  | $ | 1.17 |  |  | $ | 2.51 |  |  | $ | 2.16 |

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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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