Employee Benefits - Net Periodic Benefit Costs Actuarial Assumptions (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Ultimate health care cost trend rate	4.50%
Combined Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.25%	3.25%	3.25%
Expected long-term rate of return on plan assets	6.50%	5.50%	5.50%
Combined Pension Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.45%	2.29%	1.70%
Combined Pension Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.69%	3.12%	2.88%
Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets	3.00%	4.00%	4.00%
Ultimate health care cost trend rate	4.50%	4.50%	4.50%
Post-Retirement Benefit Plans | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.43%	2.19%	1.58%
Initial health care cost trend rate	7.20%	5.75%	5.00%
Post-Retirement Benefit Plans | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.75%	5.78%	2.60%
Initial health care cost trend rate	5.00%	5.00%	6.25%