v3.26.1
Special Charges (Income) and Other, Net - Roll Forward of Accrued Restructuring and Other Exit Cost Charges (Details)
$ in Millions
 12 Months Ended
Mar. 31, 2026
USD ($)
Restructuring Reserve [Roll Forward]  
Restructuring reserve, beginning balance $ 22.1
Restructuring Charges $ 37.2
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Nonrecurring (Income) Expense
Payments for Restructuring $ (41.9)
Non-cash - Other (11.6)
Restructuring reserve, ending balance 5.8
Employee Separation Costs  
Restructuring Reserve [Roll Forward]  
Restructuring reserve, beginning balance 17.1
Restructuring Charges 0.9
Payments for Restructuring (18.7)
Non-cash - Other 2.1
Restructuring reserve, ending balance 1.4
Contract Exit Costs  
Restructuring Reserve [Roll Forward]  
Restructuring reserve, beginning balance 4.6
Restructuring Charges 14.5
Payments for Restructuring (2.0)
Non-cash - Other (13.7)
Restructuring reserve, ending balance 3.4
Other  
Restructuring Reserve [Roll Forward]  
Restructuring reserve, beginning balance 0.4
Restructuring Charges 21.8
Payments for Restructuring (21.2)
Non-cash - Other 0.0
Restructuring reserve, ending balance $ 1.0