v3.26.1
Stock-Based Compensation - Schedule of Expenses and Associated Income Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation expense (credit) $ 80 $ (9) $ 92
Impact of modification 15    
Liability-classified awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation expense (credit) 41 (14) 87
Impact of modification 15 0 0
Income tax (benefit) expense (13) 2 (23)
Total 43 (12) 64
Equity-classified awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation expense (credit) 24 5 5
Income tax (benefit) expense (6) 0 0
Total $ 18 $ 5 $ 5