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Earnings Per Share Attributable to Cardinal Health, Inc. (Tables) | 6 Months Ended
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Dec. 31, 2022
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 December 31,
(in millions) | 2022 |  | 2021
Weighted-average common shares–basic | 261 |  |  | 279 |
Effect of dilutive securities: |  |  |
Employee stock options, restricted share units and performance share units | — |  |  | 2 |
Weighted-average common shares–diluted | 261 |  |  | 281 |
| Six Months Ended December 31,
(in millions) | 2022 |  | 2021
Weighted-average common shares–basic | 266 |  |  | 283 |
Effect of dilutive securities: |  |  |
Employee stock options, restricted share units and performance share units | — |  |  | 2 |
Weighted-average common shares–diluted | 266 |  |  | 285 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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