v3.26.3
Earnings Per Share Attributable to Cardinal Health, Inc. (Reconciliation of Common Shares Used to Compute Basic and Diluted EPS) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Earnings Per Share [Abstract]    
Weighted-average common shares–basic (in shares) 232,000 238,000
Effect of dilutive securities:    
Weighted Average Number Diluted Shares Outstanding Adjustment 1,000 1,000
Weighted-average common shares–diluted (in shares) 233,000 239,000
Net earnings/(loss) $ 556 $ 454
Basic (in shares) $ 2.39 $ 1.89
Diluted (in shares) $ 2.38 $ 1.88
Less: Net earnings attributable to noncontrolling interests $ (2) $ (4)
Net earnings $ 554 $ 450