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Earnings (Loss) Per Common Share (Tables) | 3 Months Ended
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Jun. 30, 2021
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:
|  |  | Three Months Ended June 30,
(In millions, except per share amounts) |  |  |  |  | 2021 |  | 2020
Income from continuing operations |  |  |  |  | $ | 536 |  |  | $ | 495 |
Net income attributable to noncontrolling interests |  |  |  |  | (47) |  |  | (50) |
Income from continuing operations attributable to McKesson Corporation |  |  |  |  | 489 |  |  | 445 |
Loss from discontinued operations, net of tax |  |  |  |  | (3) |  |  | (1) |
Net income attributable to McKesson Corporation |  |  |  |  | $ | 486 |  |  | $ | 444 |
Weighted-average common shares outstanding: |  |  |  |  |  |  |
Basic |  |  |  |  | 156.2 |  |  | 162.0 |
Effect of dilutive securities: |  |  |  |  |  |  |
Stock options |  |  |  |  | 0.1 |  |  | — |
Restricted stock units (1) |  |  |  |  | 1.8 |  |  | 1.2 |
Diluted |  |  |  |  | 158.1 |  |  | 163.2 |
Earnings (loss) per common share attributable to McKesson: (2) |  |  |  |  |  |  |
Diluted |  |  |  |  |  |  |
Continuing operations |  |  |  |  | $ | 3.09 |  |  | $ | 2.72 |
Discontinued operations |  |  |  |  | (0.02) |  |  | — |
Total |  |  |  |  | $ | 3.07 |  |  | $ | 2.72 |
Basic |  |  |  |  |  |  |
Continuing operations |  |  |  |  | $ | 3.13 |  |  | $ | 2.74 |
Discontinued operations |  |  |  |  | (0.02) |  |  | — |
Total |  |  |  |  | $ | 3.11 |  |  | $ | 2.74 |
(1)Includes dilutive effect from restricted stock units, performance-based restricted stock units, and performance-based stock units. (2)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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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