Pension and Other Postretirement Benefits - Schedule of Weighted-average Assumptions Used to Determine Benefit Obligation (Details)	Jun. 30, 2025	Jun. 30, 2024
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.82%	5.98%
Rate of compensation increase	3.32%	3.33%
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.76%	6.03%

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.

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+ Details