Retirement, Other Postretirement Benefits, And Defined Contribution Plans Actuarial Assumptions Used In Determining Pension And Other Postretirement Benefit Obligation (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate	4.00%	2.60%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	4.75%	4.75%
Pre-65 Retirees [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed health care cost trend rate	6.65%	5.65%
Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate	2032	2032
Post - 65 Retirees [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed health care cost trend rate	7.50%	5.90%
Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate	2032	2032
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.20%	2.94%
Pension Plans, Defined Benefit [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.98%	2.11%
Pension Plans, Defined Benefit [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Blended weighted-average discount rate	0.00052%	3.05%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average rate of increase in future compensation levels	0.0004%	0.0004%
Minimum [Member] | Pension Plans, Defined Benefit [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average discount rate	0.00052%	2.99%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average rate of increase in future compensation levels	0.00044%	0.00044%
Maximum [Member] | Pension Plans, Defined Benefit [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average discount rate	0.00053%	3.08%