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Earnings Per Share Attributable to Cardinal Health, Inc. (Tables) | 9 Months Ended
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Mar. 31, 2023
Earnings Per Share [Abstract] |
Reconciliation of Common Shares Used to Compute Basic and Diluted Earnings Per Share | The following table reconciles the number of common shares used to compute basic and diluted earnings/(loss) per share attributable to Cardinal Health, Inc.:
| Three Months Ended March 31,
(in millions) | 2023 |  | 2022
Weighted-average common shares–basic | 256 |  |  | 275 |
Effect of dilutive securities: |  |  |
Employee stock options, restricted share units and performance share units | 2 |  |  | — |
Weighted-average common shares–diluted | 258 |  |  | 275 |
| Nine Months Ended March 31,
(in millions) | 2023 |  | 2022
Weighted-average common shares–basic | 263 |  |  | 281 |
Effect of dilutive securities: |  |  |
Employee stock options, restricted share units and performance share units | 1 |  |  | — |
Weighted-average common shares–diluted | 264 |  |  | 281 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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