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Pension Benefits - Schedule of Changes in Benefit Obligations and Plan Assets (Details) - Pension Plans, Defined Benefit - Non-U.S. Plans - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Change in benefit obligations      
Benefit obligation at beginning of period $ 174 $ 172  
Service cost 2 2 $ 5
Interest cost 7 8 7
Actuarial loss 2 0  
Benefits paid (8) (9)  
Curtailment/settlement (96) 0  
Divestitures (6) 0  
Foreign exchange impact and other 2 1  
Benefit obligation at end of period 77 174 172
Change in plan assets      
Fair value of plan assets at beginning of period 171 174  
Actual return on plan assets 0 (1)  
Employer and participant contributions 4 5  
Benefits paid (8) (9)  
Settlement (96) 0  
Divestitures (6) 0  
Foreign exchange impact and other 1 2  
Fair value of plan assets at end of period 66 171 $ 174
Funded status at end of period (11) (3)  
Amounts recognized on the balance sheet      
Current assets 7 0  
Long-term assets 2 18  
Current liabilities (1) (1)  
Long-term liabilities (19) (20)  
Total $ (11) $ (3)