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Earnings (Loss) Per Common Share (Tables) | 12 Months Ended
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Mar. 31, 2023
Earnings Per Share [Abstract] |
Schedule of basic and diluted earnings per common share | The computations for basic and diluted earnings or loss per common share were as follows:
| Years Ended March 31,
(In millions, except per share amounts) | 2023 |  | 2022 |  | 2021
Income (loss) from continuing operations | $ | 3,725 |  |  | $ | 1,292 |  |  | $ | (4,339) |
Net income attributable to noncontrolling interests | (162) |  |  | (173) |  |  | (199) |
Income (loss) from continuing operations attributable to McKesson Corporation | 3,563 |  |  | 1,119 |  |  | (4,538) |
Loss from discontinued operations, net of tax | (3) |  |  | (5) |  |  | (1) |
Net income (loss) attributable to McKesson Corporation | $ | 3,560 |  |  | $ | 1,114 |  |  | $ | (4,539) |
Weighted-average common shares outstanding: |  |  |  |  |
Basic | 141.1 |  |  | 152.3 |  |  | 160.6 |
Effect of dilutive securities: |  |  |  |  |
Stock options | 0.2 |  |  | 0.2 |  |  | — |
Restricted stock units (1) | 0.9 |  |  | 1.6 |  |  | — |
Diluted | 142.2 |  |  | 154.1 |  |  | 160.6 |
Earnings (loss) per common share attributable to McKesson Corporation: (2) |  |  |  |  |
Diluted |  |  |  |  |
Continuing operations | $ | 25.05 |  |  | $ | 7.26 |  |  | $ | (28.26) |
Discontinued operations | (0.02) |  |  | (0.03) |  |  | — |
Total | $ | 25.03 |  |  | $ | 7.23 |  |  | $ | (28.26) |
Basic |  |  |  |  |
Continuing operations | $ | 25.25 |  |  | $ | 7.35 |  |  | $ | (28.26) |
Discontinued operations | (0.02) |  |  | (0.03) |  |  | — |
Total | $ | 25.23 |  |  | $ | 7.32 |  |  | $ | (28.26) |
(1)Includes dilutive effect from 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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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