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Summary of Significant Accounting Policies (Narrative) (Details)
$ in Millions
 12 Months Ended
Mar. 31, 2023
USD ($)
reporting_unit
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Revenue Recognition      
Sales contract with customer term (in years) 1 year    
Advertising Costs      
Advertising costs $ 341.1 $ 628.9 $ 450.0
Leases      
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other assets Other assets  
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Accrued and other current liabilities Accrued and other current liabilities  
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other Liabilities, Noncurrent Other Liabilities, Noncurrent  
Impairment of Goodwill      
Number of reporting units | reporting_unit 1    
Plant and Buildings      
Property, Plant and Equipment      
Estimated useful life (in years) 25 years    
Operating Expense      
Advertising Costs      
Advertising costs $ 24.8 $ 267.8 $ 168.2
Minimum      
Revenue Recognition      
Post-contract customer support revenue recognition period (in years) 1 year    
Required customer payment period (in days) 30 days    
Intangible Assets      
Estimated useful life (in years) 1 year    
Product Warranties      
Product warranty period (in years) 1 year    
Minimum | Equipment      
Property, Plant and Equipment      
Estimated useful life (in years) 3 years    
Minimum | Internal-Use Software      
Property, Plant and Equipment      
Estimated useful life (in years) 3 years    
Minimum | Tooling      
Property, Plant and Equipment      
Estimated useful life (in years) 6 months    
Maximum      
Revenue Recognition      
Post-contract customer support revenue recognition period (in years) 2 years    
Required customer payment period (in days) 60 days    
Intangible Assets      
Estimated useful life (in years) 10 years    
Product Warranties      
Product warranty period (in years) 3 years    
Maximum | Equipment      
Property, Plant and Equipment      
Estimated useful life (in years) 5 years    
Maximum | Internal-Use Software      
Property, Plant and Equipment      
Estimated useful life (in years) 10 years    
Maximum | Tooling      
Property, Plant and Equipment      
Estimated useful life (in years) 1 year    
Maximum | Leasehold Improvements      
Property, Plant and Equipment      
Estimated useful life (in years) 10 years