Commitments And Contingent Liabilities (Nuclear Insurance Coverages and Assessments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Other Commitments [Line Items]
Maximum Aggregate Assessment Per Incident		$ 522
Maximum Aggregate Annual Assessment		78
Nuclear Insurance Aggregate Limit		3,240
Total Site Coverage for Nuclear Event [Member]
Other Commitments [Line Items]
Nuclear Liability Total		15,800
Total Site Coverage for Nuclear Event [Member] | American Nuclear Insurers [Member]
Other Commitments [Line Items]
Public And Nuclear Worker Liability Primary Layer		450
Total Site Coverage for Nuclear Event [Member] | American Nuclear Insurers [Member] | Subsequent Event [Member]
Other Commitments [Line Items]
Public And Nuclear Worker Liability Primary Layer	$ 500
Retrospective Assessments [Member]
Other Commitments [Line Items]
Replacement Power Total		$ 48