Benefit Plans - Assumptions Used to Determine Pension Expense (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2028	Dec. 31, 2025
Pension
Defined Benefit Plan Disclosure [Line Items]
Discount rate - projected benefit obligation	5.00%	5.31%	2.85%
Discount rate - interest cost	4.92%	5.23%	2.49%
Expected long-term return on plan assets	7.25%	7.50%	6.79%
OPEB
Defined Benefit Plan Disclosure [Line Items]
Discount rate - projected benefit obligation	4.96%	5.29%	2.85%
Discount rate - interest cost	4.96%	5.29%	2.85%
Assumed healthcare cost trend rate	7.00%	5.50%	5.75%
OPEB | Forecast
Defined Benefit Plan Disclosure [Line Items]
Assumed healthcare cost trend rate				4.50%	7.00%