Retirement, Other Postretirement Benefits, And Defined Contribution Plans Plan Assets, Asset Allocations Targets (Details)	Dec. 31, 2022	Dec. 31, 2021
Qualified Pension Plans [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	43.00%
Postretirement Asset Allocation	42.00%	40.00%
Qualified Pension Plans [Member] | Domestic Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	35.00%
Qualified Pension Plans [Member] | Domestic Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	51.00%
Qualified Pension Plans [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	22.00%
Postretirement Asset Allocation	22.00%	20.00%
Qualified Pension Plans [Member] | International Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	17.00%
Qualified Pension Plans [Member] | International Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	27.00%
Qualified Pension Plans [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	35.00%
Postretirement Asset Allocation	33.00%	40.00%
Qualified Pension Plans [Member] | Fixed Income Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	29.00%
Qualified Pension Plans [Member] | Fixed Income Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	41.00%
Qualified Pension Plans [Member] | Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	0.00%
Postretirement Asset Allocation	3.00%	0.00%
Qualified Pension Plans [Member] | Other Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	0.00%
Qualified Pension Plans [Member] | Other Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	10.00%
Other Postretirement Benefits Plan [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	25.00%
Postretirement Asset Allocation	25.00%	28.00%
Other Postretirement Benefits Plan [Member] | Domestic Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	20.00%
Other Postretirement Benefits Plan [Member] | Domestic Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	30.00%
Other Postretirement Benefits Plan [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	17.00%
Postretirement Asset Allocation	18.00%	17.00%
Other Postretirement Benefits Plan [Member] | International Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	12.00%
Other Postretirement Benefits Plan [Member] | International Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	22.00%
Other Postretirement Benefits Plan [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	58.00%
Postretirement Asset Allocation	57.00%	55.00%
Other Postretirement Benefits Plan [Member] | Fixed Income Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	53.00%
Other Postretirement Benefits Plan [Member] | Fixed Income Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	63.00%
Other Postretirement Benefits Plan [Member] | Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	0.00%
Postretirement Asset Allocation	0.00%	0.00%
Other Postretirement Benefits Plan [Member] | Other Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	0.00%
Other Postretirement Benefits Plan [Member] | Other Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	5.00%