Debt and Financing Activities - Other Information (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Debt Disclosure [Abstract]
Fiscal 2026	$ 1,184
Fiscal 2027	1,228
Fiscal 2028	384
Fiscal 2029	1,011
Fiscal 2030	725
Thereafter	1,122
Total	$ 5,654	$ 5,629

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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