Earnings Per Share Attributable to Cardinal Health, Inc. (Narrative) (Details) shares in Thousands |
3 Months Ended | 6 Months Ended | ||
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Dec. 31, 2023
shares
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Dec. 31, 2022
shares
|
Dec. 31, 2023
shares
|
Dec. 31, 2022
shares
|
|
Earnings Per Share [Abstract] | ||||
Potentially dilutive employee stock options, restricted share units and performance share units that were antidilutive (in shares) | 1,000 | 1,000 | ||
Shares that would be antidilutive as a result of net loss | 2,000 | 2,000 |