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Fair Value Measurements - Schedule of Long-Term Debt is Recorded at Amortized Cost (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Mar. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Carrying Value $ 5,587 $ 5,629
Fair Value, Recurring | Fair value, inputs, level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Carrying Value 5,587 5,629
Fair Value $ 5,584 $ 5,488