Pension And Postretirement Benefits (Weighted-average Discount Rates) (Details) - Pension Plan	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Weighted-average discount rate for determining projected benefit obligation	5.90%	5.90%	5.20%
Percentage Increase (Decrease) In Discount Rate From Previous Year	0.70%
Actual return on pension plan assets		(1.10%)
Expected long-term rate of return (annual rate)		7.50%
Service Cost
Defined Benefit Plan Disclosure [Line Items]
Discount rate in effect		5.90%
Interest Cost
Defined Benefit Plan Disclosure [Line Items]
Discount rate in effect		5.70%