Pension and Other Postretirement Benefits - Schedule of Weighted Average Asset Allocations by Asset Category (Details) - Pension benefits	Jun. 30, 2026	Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]
Total	100.00%	100.00%
Equity investments
Defined Benefit Plan Disclosure [Line Items]
Total	21.00%	22.00%
Fixed income investments, including cash
Defined Benefit Plan Disclosure [Line Items]
Total	72.00%	72.00%
Other
Defined Benefit Plan Disclosure [Line Items]
Total	7.00%	6.00%

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