Leases - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Cash paid for amounts included in the measurement of lease liabilities: | |||
| Operating cash flows used for operating leases | $ (44) | $ (37) | $ (35) |
| Operating cash flows used for finance leases | 3 | 1 | 0 |
| Financing cash flows used for finance leases | (26) | (23) | (10) |
| Right-of-use assets obtained in exchange for lease obligations: | |||
| Operating leases | 98 | 146 | 28 |
| Finance leases | $ 56 | $ 33 | $ 21 |
| X | ||||||||||
- Definition Cash Paid For Lease Liabilities No definition available.
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| X | ||||||||||
- Definition Right-Of-Use Assets Obtained In Exchange For Finance Lease Liability, Adjusted No definition available.
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| X | ||||||||||
- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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