Employee Benefits Allocation of Plan Assets (Details)	Dec. 31, 2023	Dec. 31, 2022
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	100.00%
Defined benefit plan, actual plan asset allocations	100.00%	100.00%
Alternative Investments
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	0.00%
Defined benefit plan, actual plan asset allocations	0.00%	18.00%
Equity securities
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	6.00%
Defined benefit plan, actual plan asset allocations	5.00%	14.00%
Fixed income securities
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	15.00%
Defined benefit plan, actual plan asset allocations	16.00%	26.00%
Liability driven investments
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	0.00%
Defined benefit plan, actual plan asset allocations	0.00%	28.00%
Real estate
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	1.00%
Defined benefit plan, actual plan asset allocations	1.00%	14.00%
Insurance, Other
Allocation of Plan Assets
Defined benefit plan, plan assets, target allocation, percentage	78.00%
Defined benefit plan, actual plan asset allocations	78.00%	0.00%