PENSION AND OTHER POSTRETIREMENT PLANS - Weighted-Average Assumptions for Principal Retirement and Other Postretirement Benefit Plans (Details) |
12 Months Ended | ||
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Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Pension | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 3.51% | 4.13% | 4.01% |
| Other Postretirement | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 4.99% | 5.86% | 5.37% |
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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