v3.26.1
INTANGIBLE ASSETS INCLUDING GOODWILL - Goodwill by Segment (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Changes in Goodwill Balances    
Beginning Balance $ 790.0 $ 805.0
Acquisitions and (Divestitures)   (15.0)
Foreign Currency Translation Adjustments (4.0) 1.0
Impairment 0.0  
Goodwill accumulated impairment losses 469.0  
Ending Balance 786.0 790.0
EMEA    
Changes in Goodwill Balances    
Goodwill accumulated impairment losses 293.0  
Japan    
Changes in Goodwill Balances    
Beginning Balance 489.0 488.0
Foreign Currency Translation Adjustments (4.0) 1.0
Ending Balance 484.0 489.0
United States    
Changes in Goodwill Balances    
Beginning Balance 11.0  
Acquisitions and (Divestitures)   11.0
Goodwill accumulated impairment losses 176.0  
Ending Balance 11.0 11.0
Principal Markets    
Changes in Goodwill Balances    
Beginning Balance 92.0 141.0
Acquisitions and (Divestitures)   (27.0)
Reallocation   (23.0)
Ending Balance 92.0 92.0
Strategic Markets    
Changes in Goodwill Balances    
Beginning Balance 198.0 176.0
Reallocation   23.0
Ending Balance $ 198.0 $ 198.0