Pension and Other Postretirement Benefits - Schedule of Weighted-average Asset Allocations by Asset Category (Details) - Pension Benefits	Jun. 30, 2024	Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Total	100.00%	100.00%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total	42.40%	43.80%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total	31.60%	36.50%
Real assets securities
Defined Benefit Plan Disclosure [Line Items]
Total	26.00%	19.70%