XML 58 R47.htm IDEA: XBRL DOCUMENT v3.20.2
Intangible Assets and Goodwill - Intangible Assets, by Major Class (Details) - USD ($)
$ in Millions
6 Months Ended
Sep. 30, 2020
Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Accumulated Amortization $ (3,062.8) $ (2,668.0)
Gross Amount 8,318.6 8,370.3
Net Amount 5,255.8 5,702.3
Projected Amortization Expense    
2021 492.7  
2022 906.7  
2023 702.5  
2024 625.0  
2025 $ 508.1  
Minimum    
Projected Amortization Expense    
Useful life 1 year  
Maximum    
Projected Amortization Expense    
Useful life 15 years  
In-process research and development    
Indefinite-lived Intangible Assets [Line Items]    
In-process research and development $ 7.7 8.8
Core and developed technology    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 7,349.8 7,331.9
Accumulated Amortization (2,346.4) (1,924.6)
Net Amount 5,003.4 5,407.3
Customer-related    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 835.1 903.6
Accumulated Amortization (656.8) (674.7)
Net Amount 178.3 228.9
Distribution rights and other    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 126.0 126.0
Accumulated Amortization (59.6) (68.7)
Net Amount $ 66.4 $ 57.3