v3.25.4
Share-Based Compensation - Equity Incentive Plans, Stock Compensation Expense (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Pre-tax effect of share-based compensation $ 72.6 $ 49.4 $ 187.1 $ 139.7
Income tax benefit 15.1 10.4 38.8 29.3
Net income effect of share-based compensation 57.5 39.0 148.3 110.4
Capitalized share-based compensation expense 6.9 3.6 16.4 13.6
Share-based compensation expense previously capitalized 10.5 7.4 26.5 18.3
Amortization expense charged to cost of sales        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Pre-tax effect of share-based compensation 10.5 7.4 26.5 18.3
Research and development        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Pre-tax effect of share-based compensation 39.3 28.8 101.6 79.0
Selling, general and administrative        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Pre-tax effect of share-based compensation $ 22.8 $ 13.2 $ 59.0 $ 42.4