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Earnings Per Share
 9 Months Ended
Jan. 31, 2025
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share 
We calculate basic earnings per share by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share further includes the dilutive effect of stock-based compensation awards. We calculate that dilutive effect using the “treasury stock method” (as defined by GAAP).
The following table presents information concerning basic and diluted earnings per share:
Three Months EndedNine Months Ended
January 31,January 31,
(Dollars in millions, except per share amounts)2024202520242025
Net income available to common stockholders$285 $270 $758 $723 
Share data (in thousands):  
Basic average common shares outstanding474,806 472,661 477,542 472,651 
Dilutive effect of stock-based awards760 225 902 309 
Diluted average common shares outstanding475,566 472,886 478,444 472,960 
Basic earnings per share$0.60 $0.57 $1.59 $1.53 
Diluted earnings per share$0.60 $0.57 $1.58 $1.53 

We excluded common stock-based awards for approximately 1,658,000 shares and 3,378,000 shares from the calculation of diluted earnings per share for the three months ended January 31, 2024 and 2025, respectively. We excluded common stock-based awards for approximately 1,544,000 shares and 2,993,000 shares from the calculation of diluted earnings per share for the nine months ended January 31, 2024 and 2025, respectively. We excluded those awards because they were not dilutive for those periods under the treasury stock method.