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Financing Arrangement - Line of Credit Facility (Details) - Revolving Credit Facility - USD ($)
$ in Millions
6 Months Ended
Sep. 30, 2025
Mar. 22, 2023
Line of Credit Facility [Line Items]    
Credit facility, maximum borrowing capacity   $ 500
Option to request additional commitments on credit facility   $ 500
Debt instrument, basis spread on variable rate 0.10%  
Debt issuance costs $ 2  
Line of credit facility term 5 years