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Earnings Per Share Attributable to Cardinal Health, Inc. | 3 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share Attributable to Cardinal Health, Inc. | 13. Earnings Per Share Attributable to Cardinal Health, Inc. The following table reconciles the number of common shares used to compute basic and diluted earnings per share attributable to Cardinal Health, Inc.:
| Three Months Ended September 30,
(in millions) | 2018 |  | 2017
Weighted-average common shares–basic | 305 |  |  | 316 |
Effect of dilutive securities: |  |  |
Employee stock options, restricted share units, and performance share units | 1 |  |  | 2 |
Weighted-average common shares–diluted | 306 |  |  | 318 |
The potentially dilutive employee stock options, restricted share units and performance share units that were antidilutive for the three months ended September 30, 2018 and 2017 were 6 million and 5 million, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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