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Pension and Postretirement Health and Life Benefits (Plan Asset Allocations) (Details)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		45.00%	52.00%
Equity Securities [Member] | Scenario, Forecast [Member] | Minimum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	40.00%
Equity Securities [Member] | Scenario, Forecast [Member] | Maximum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	45.00%
Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		51.00%	42.00%
Debt Securities [Member] | Scenario, Forecast [Member] | Minimum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	50.00%
Debt Securities [Member] | Scenario, Forecast [Member] | Maximum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	55.00%
Cash [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		4.00%	6.00%
Cash [Member] | Scenario, Forecast [Member] | Minimum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	0.00%
Cash [Member] | Scenario, Forecast [Member] | Maximum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	5.00%

X

- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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