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Computation of Earnings Per Share (Tables) | 9 Months Ended
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Feb. 28, 2018
Computation Of Earnings Per Share Tables [Abstract] |
Schedule of basic and diluted earnings per common share | The calculation of basic and diluted earnings per common share for the periods ended February 28 was as follows (in millions, except per share amounts):
|  | Three Months Ended |  |  | Nine Months Ended |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Basic earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings allocable to common shares(1) |  | $ | 2,071 |  |  | $ | 561 |  |  | $ | 3,441 |  |  | $ | 1,974 |
Weighted-average common shares |  |  | 268 |  |  |  | 266 |  |  |  | 268 |  |  |  | 266 |
Basic earnings per common share |  | $ | 7.74 |  |  | $ | 2.11 |  |  | $ | 12.85 |  |  | $ | 7.43 |
Diluted earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings allocable to common shares(1) |  | $ | 2,071 |  |  | $ | 561 |  |  | $ | 3,441 |  |  | $ | 1,974 |
Weighted-average common shares |  |  | 268 |  |  |  | 266 |  |  |  | 268 |  |  |  | 266 |
Dilutive effect of share-based awards |  |  | 5 |  |  |  | 5 |  |  |  | 4 |  |  |  | 4 |
Weighted-average diluted shares |  |  | 273 |  |  |  | 271 |  |  |  | 272 |  |  |  | 270 |
Diluted earnings per common share |  | $ | 7.59 |  |  | $ | 2.07 |  |  | $ | 12.63 |  |  | $ | 7.31 |
Anti-dilutive options excluded from diluted earnings per common share |  |  | 1.9 |  |  |  | 4.0 |  |  |  | 2.6 |  |  |  | 4.7 |
(1)Net earnings available to participating securities were immaterial in all periods presented.

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- Definition Computation Of Earnings Per Share (Tables) [Abstract] + References No definition available. + Details
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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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