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Earnings Per Common Share
 6 Months Ended
Sep. 30, 2025
Earnings Per Share [Abstract]  
Earnings Per Common Share Earnings Per Common Share
Basic earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding during the reporting period. The computation of diluted earnings per common share is similar to that of basic earnings per common share, except that the former reflects the potential dilution that could occur if dilutive securities or other obligations to issue common stock were exercised or converted into common stock. Potentially dilutive securities include outstanding stock options, restricted stock units, and performance-based restricted stock units. Less than one million of potentially dilutive securities for the three and six months ended September 30, 2025 and 2024 were excluded from the computation of diluted earnings per common share as they were anti-dilutive.
The computations for basic and diluted earnings per common share were as follows:
Three Months Ended September 30, Six Months Ended September 30,
(In millions, except per share amounts)2025202420252024
Net income$1,163 $287 $1,994 $1,247 
Net income attributable to noncontrolling interests(53)(46)(100)(91)
Net income attributable to McKesson Corporation$1,110 $241 $1,894 $1,156 
Weighted-average common shares outstanding:
Basic124.0 128.7 124.5 129.3 
Effect of dilutive securities:
Stock options— 0.1 — 0.1 
Restricted stock units (1)
0.4 0.5 0.4 0.6 
Diluted124.4 129.3 124.9 130.0 
Earnings per common share attributable to McKesson Corporation: (2)
Diluted$8.92 $1.87 $15.16 $8.89 
Basic$8.95 $1.88 $15.22 $8.94 
(1)Includes dilutive effect from restricted stock units and performance-based restricted stock units.
(2)Certain computations may reflect rounding adjustments.