Pension and Other Postretirement Benefits (Summary Of Assumptions Used To Determine Benefit Obligations And Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Benefits
Benefit obligation:
Discount rate	5.55%	4.85%	5.04%
Rate of compensation increase	4.18%	4.18%	4.18%
Net periodic benefit cost:
Discount rate	4.85%	5.10%	3.33%
Expected long-term return on plan assets	6.80%	7.00%	5.75%
Rate of compensation increase	4.18%	4.18%	4.18%
Other Benefits
Benefit obligation:
Discount rate	5.58%	4.88%	5.08%
Rate of compensation increase	4.18%	4.18%	4.18%
Net periodic benefit cost:
Discount rate	4.88%	5.08%	2.93%
Expected long-term return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	4.18%	4.18%	4.18%