Pension and Other Postretirement Benefits (Funded Status of Plans) (Details) - USD ($) $ in Millions |
Apr. 30, 2025 |
Apr. 30, 2024 |
Apr. 30, 2023 |
|---|---|---|---|
| Funded Status of Plans | |||
| Assets | $ 576 | $ 576 | |
| Pension Benefits [Member] | |||
| Funded Status of Plans | |||
| Assets | 576 | 576 | $ 606 |
| Obligations | (683) | (679) | (731) |
| Funded status | (107) | (103) | |
| Medical and Life Insurance Benefits [Member] | |||
| Funded Status of Plans | |||
| Assets | 0 | 0 | 0 |
| Obligations | (39) | (36) | $ (40) |
| Funded status | $ (39) | $ (36) |
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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