Benefit Plans (Assumptions to Determine Postretirement Benefit Obligations) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate		5.60%	3.00%
Rate of compensation increase - long-term		4.00%	4.00%
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets		6.10%	6.60%	6.60%
Pension [Member] | Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets	6.10%
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate		5.60%	2.90%
Rate of compensation increase - long-term		0.00%	0.00%
Health care cost trend rate assumed for next year		6.50%	6.50%
Ultimate trend rate		5.00%	5.00%
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets		7.70%	7.70%	7.70%
Postretirement Benefit Plan [Member] | Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets	7.40%