Pension and Other Postretirement Benefits - Summary of Weighted-average Assumptions Used to Determine Benefit Obligation (Details) |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Pension Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Discount rate | 6.08% | 5.82% |
| Rate of compensation increase | 3.30% | 3.32% |
| Other Postretirement Plans | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Discount rate | 6.08% | 5.76% |
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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