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Earnings Per Share Attributable to Cardinal Health, Inc. (Tables) | 12 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Reconciliation of Common Shares Used to Compute Basic and Diluted Earnings Per Share | The following table reconciles the computation of basic and diluted earnings per share attributable to Cardinal Health, Inc.:
(in millions, except per share amounts) | 2019 |  | 2018 |  | 2017
Net earnings | $ | 1,365 |  |  | $ | 259 |  |  | $ | 1,294 |
Net earnings attributable to noncontrolling interest | (2 | ) |  | (3 | ) |  | (6 | )
Net earnings attributable to Cardinal Health, Inc. | $ | 1,363 |  |  | $ | 256 |  |  | $ | 1,288 |
Weighted-average common shares–basic | 300 |  |  | 313 |  |  | 317 |
Effect of dilutive securities: |  |  |  |  |
Employee stock options, restricted share units, and performance share units | 1 |  |  | 2 |  |  | 3 |
Weighted-average common shares–diluted | 301 |  |  | 315 |  |  | 320 |
Basic earnings per common share attributable to Cardinal Health, Inc.: | $ | 4.55 |  |  | $ | 0.82 |  |  | $ | 4.06 |
Diluted earnings per common share attributable to Cardinal Health, Inc.: | 4.53 |  |  | 0.81 |  |  | 4.03 |

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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 http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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