v3.25.4
Intangible Assets and Goodwill - Intangible Assets, by Major Class (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Mar. 31, 2025
Finite-Lived Intangible Assets [Line Items]    
Accumulated Amortization $ (5,603.1) $ (5,270.5)
Gross Amount 7,702.2 7,659.5
Net Amount 2,099.1 2,389.0
Amortization Expense    
2026 134.8  
2027 451.5  
2028 344.7  
2029 269.8  
2030 257.8  
In-process research and development    
Finite-Lived Intangible Assets [Line Items]    
In-process research and development $ 7.1 50.8
Minimum    
Amortization Expense    
Useful life 1 year  
Maximum    
Amortization Expense    
Useful life 15 years  
Core and developed technology    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 7,206.7 7,149.9
Accumulated Amortization (5,278.1) (4,981.6)
Net Amount 1,928.6 2,168.3
Customer-related    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 202.5 199.5
Accumulated Amortization (162.2) (152.8)
Net Amount 40.3 46.7
Software licenses    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 285.9 259.3
Accumulated Amortization (162.8) (136.1)
Net Amount $ 123.1 $ 123.2