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Earnings Per Common Share (Tables) | 6 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Schedule of computations for basic and diluted earnings per common share | The computations for basic and diluted earnings or loss per common share are as follows:
| Quarter Ended September 30, |  | Six Months Ended September 30,
(In millions, except per share amounts) | 2019 |  | 2018 |  | 2019 |  | 2018
Income (Loss) from continuing operations | $ | (676 | ) |  | $ | 552 |  |  | $ | (193 | ) |  | $ | 471 |
Net income attributable to noncontrolling interests | (53 | ) |  | (54 | ) |  | (107 | ) |  | (112 | )
Income (Loss) from continuing operations attributable to McKesson | (729 | ) |  | 498 |  |  | (300 | ) |  | 359 |
Income (Loss) from discontinued operations, net of tax | (1 | ) |  | 1 |  |  | (7 | ) |  | 2 |
Net income (loss) attributable to McKesson | $ | (730 | ) |  | $ | 499 |  |  | $ | (307 | ) |  | $ | 361 |
Weighted average common shares outstanding: |  |  |  |  |  |  |
Basic | 183 |  |  | 198 |  |  | 185 |  |  | 200 |
Effect of dilutive securities: |  |  |  |  |  |  |
Restricted stock units | — |  |  | 1 |  |  | — |  |  | 1 |
Diluted | 183 |  |  | 199 |  |  | 185 |  |  | 201 |
Earnings (Loss) per common share attributable to McKesson: (1) |  |  |  |  |  |  |
Diluted |  |  |  |  |  |  |
Continuing operations | $ | (3.99 | ) |  | $ | 2.51 |  |  | $ | (1.62 | ) |  | $ | 1.79 |
Discontinued operations | — |  |  | — |  |  | (0.03 | ) |  | 0.01 |
Total | $ | (3.99 | ) |  | $ | 2.51 |  |  | $ | (1.65 | ) |  | $ | 1.80 |
Basic |  |  |  |  |  |  |
Continuing operations | $ | (3.99 | ) |  | $ | 2.52 |  |  | $ | (1.62 | ) |  | $ | 1.80 |
Discontinued operations | — |  |  | — |  |  | (0.03 | ) |  | 0.01 |
Total | $ | (3.99 | ) |  | $ | 2.52 |  |  | $ | (1.65 | ) |  | $ | 1.81 |
(1) Certain computations may reflect rounding adjustments.

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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://fasb.org/us-gaap/role/ref/legacyRef -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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