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Earnings Per Share Attributable to Cardinal Health, Inc. (Tables)
3 Months Ended
Sep. 30, 2020
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 loss per share attributable to Cardinal Health, Inc.:
Three Months Ended September 30,
(in millions)20202019
Weighted-average common shares–basic293 296 
Effect of dilutive securities:
Employee stock options, restricted share units, and performance share units — 
Weighted-average common shares–diluted293 296