Income Taxes - Reconciliation of the Expected Income Tax Expense to the Reported Income Tax Expense (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
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Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
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| Reconciliation of the expected income tax expense to the reported income tax expense | |||
| Computed “expected” income taxes | $ 334 | $ 323 | $ 324 |
| Foreign tax rate differential | 10 | 12 | 13 |
| State and local income taxes, net of federal income tax benefit | 70 | 68 | 64 |
| Change in estimated state tax rate, net of federal income tax benefit | (3) | 23 | (10) |
| Change in unrecognized tax benefit | 6 | 5 | 4 |
| Other | (2) | 8 | 8 |
| Income tax expense | $ 415 | $ 439 | $ 403 |
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- Definition Income tax reconciliation tabular disclosure of the change in estimated state tax rate, net of federal income tax benefit. No definition available.
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- Definition Income tax reconciliation tabular disclosure of the computed expected income taxes. No definition available.
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- Definition Income tax reconciliation tabular disclosure of the change in unrecognized tax benefits. No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying statutory federal (national) tax rate to pretax income (loss) from continuing operation attributable to other reconciling item. Excludes state and local income tax expense (benefit), federal tax expense (benefit), statutory income tax expense (benefit) outside of country of domicile, tax credit, nondeductible expense, deduction, income tax settlement, income tax contingency, and cross-border tax law. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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