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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Other income (expense), net $ 17 $ (13) $ 31
Interest expense, net $ (168) (147) (110)
Description of payment terms Our customers generally pay our invoices within 30 days of the invoice date, although we experience a longer billing and collection cycle with our global commercial customers.    
Revision of Prior Period, Reclassification, Adjustment      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Other income (expense), net   (26) (10)
Interest expense, net   $ 26 $ 10