Employee Benefit Plans - Asset Allocation (Details)	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan, Debt Security
Target asset allocations and weighted-average asset allocation of plan assets
Percentage of plan assets (as a percent)	77.00%	71.00%
Defined Benefit Plan, Debt Security | Minimum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	65.00%
Defined Benefit Plan, Debt Security | Maximum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	85.00%
Defined Benefit Plan, Equity Securities
Target asset allocations and weighted-average asset allocation of plan assets
Percentage of plan assets (as a percent)	17.00%	21.00%
Defined Benefit Plan, Equity Securities | Minimum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	10.00%
Defined Benefit Plan, Equity Securities | Maximum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	30.00%
Global Asset Allocations/Risk Parity
Target asset allocations and weighted-average asset allocation of plan assets
Percentage of plan assets (as a percent)	5.00%	7.00%
Global Asset Allocations/Risk Parity | Minimum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	0.00%
Global Asset Allocations/Risk Parity | Maximum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	15.00%
Defined Benefit Plan, Plan Assets, Other
Target asset allocations and weighted-average asset allocation of plan assets
Percentage of plan assets (as a percent)	1.00%	1.00%
Defined Benefit Plan, Plan Assets, Other | Minimum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	0.00%
Defined Benefit Plan, Plan Assets, Other | Maximum
Target asset allocations and weighted-average asset allocation of plan assets
Target allocation (as a percent)	10.00%