Benefit Plans - Assumptions Used to Determine Pension Expense (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2028	Dec. 31, 2023
Pension
Defined Benefit Plan Disclosure [Line Items]
Discount rate - projected benefit obligation	2.85%	2.50%	3.29%
Discount rate - interest cost	2.49%	1.88%	2.62%
Expected long-term return on plan assets	6.79%	6.75%	7.50%
OPEB
Defined Benefit Plan Disclosure [Line Items]
Discount rate - projected benefit obligation	2.85%
Discount rate - service cost	2.85%
Discount rate - interest cost	2.85%
Assumed healthcare cost trend rate	5.75%
OPEB | Forecast
Defined Benefit Plan Disclosure [Line Items]
Assumed healthcare cost trend rate				450.00%	575.00%