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Employee Benefit Plans and Other Postretirement Benefits - Schedule of Assumptions Used to Determine Net Periodic Benefit Cost (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension and SERPA Benefits      
Assumptions for benefit obligations:      
Discount rate 5.65% 5.31% 5.45%
Rate of compensation increase 4.00% 4.00% 4.00%
Assumptions for net periodic benefit cost:      
Discount rate 5.31% 5.45% 2.89%
Expected return on plan assets 6.20% 6.80% 5.60%
Rate of compensation increase 4.00% 4.00% 3.49%
Postretirement Healthcare Benefits      
Assumptions for benefit obligations:      
Discount rate 5.63% 5.36% 5.42%
Assumptions for net periodic benefit cost:      
Discount rate 5.36% 5.42% 2.72%
Expected return on plan assets 7.46% 7.48% 6.77%