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Derivatives And Hedging (Schedule Of Outstanding Derivative Instruments) (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2024
MMBTU
MWh
Dec. 31, 2023
MMBTU
MWh
Natural Gas [Member]    
Derivative [Line Items]    
Quantity | MMBTU 122,260,000 111,070,000
Financial Transmission Rights [Member]    
Derivative [Line Items]    
Quantity | MWh 10,001,700 9,382,175