Employee and Retiree Benefit Plans - Weighted-Average Assumptions used in Measurement of Benefit Obligations and Net Periodic Benefit Expense (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	7.40%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Benefit obligations, discount rate	5.03%	5.30%
Net periodic benefit expense, discount rate	5.27%	3.13%
Benefit obligation, rate of compensation increase	3.52%	3.50%
Net periodic benefit expense, rate of compensation increase	3.52%	3.00%
Benefit obligation, cash balance interest credit rate	3.20%	3.20%
Net periodic benefit cost, cash balance interest credit rate	0.00%	0.00%
Benefit obligation, expected return on Plan assets	0.00%	0.00%
Expected return on plan assets	7.35%	6.24%
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Benefit obligations, discount rate	5.15%	5.41%
Net periodic benefit expense, discount rate	5.41%	2.86%
Benefit obligation, rate of compensation increase	0.00%	0.00%
Net periodic benefit expense, rate of compensation increase	0.00%	0.00%
Benefit obligation, cash balance interest credit rate	0.00%	0.00%
Net periodic benefit cost, cash balance interest credit rate	0.00%	0.00%
Benefit obligation, expected return on Plan assets	0.00%	0.00%
Expected return on plan assets	0.00%	0.00%