v3.26.1
GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Amortization of Intangible Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Capitalized software development costs and licenses      
Total amortization of intangible assets $ 725.7 $ 922.6 $ 1,418.9
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue      
Capitalized software development costs and licenses      
Total amortization of intangible assets 665.0 814.3 1,303.5
Location, Statement of Income, Balance [Axis]: us-gaap:DepreciationDepletionAndAmortization      
Capitalized software development costs and licenses      
Total amortization of intangible assets 32.0 75.5 35.7
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpenseSoftwareExcludingAcquiredInProcessCost      
Capitalized software development costs and licenses      
Total amortization of intangible assets 28.7 28.7 28.7
Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense      
Capitalized software development costs and licenses      
Total amortization of intangible assets $ 0.0 $ 4.1 $ 51.0