Employee Benefits - Benefit Obligations Actuarial Assumptions (Details)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Ultimate health care cost trend rate	4.50%
Minimum
Defined Benefit Plan Disclosure [Line Items]
Initial health care cost trend rate	5.40%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Initial health care cost trend rate	7.50%
Combined Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.21%	5.56%
Rate of compensation increase	3.25%	3.25%
Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.20%	5.55%
Ultimate health care cost trend rate	4.50%	4.50%	4.50%
Post-Retirement Benefit Plans | Minimum
Defined Benefit Plan Disclosure [Line Items]
Initial health care cost trend rate	5.40%	5.00%
Post-Retirement Benefit Plans | Maximum
Defined Benefit Plan Disclosure [Line Items]
Initial health care cost trend rate	7.50%	7.20%