v3.25.2
Fair Value Measurements (Schedule Of Valuation Process And Unobservable Inputs) (Details) - Power
$ in Millions
Jun. 30, 2025
USD ($)
$ / MWh
Dec. 31, 2024
USD ($)
$ / MWh
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Assets | $ $ 13 $ 6
Derivative liabilities | $ $ (76) $ (53)
Commodity Forward Price | Discounted cash flow | Minimum    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Measurement input 30 32
Commodity Forward Price | Discounted cash flow | Maximum    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Measurement input 65 69
Commodity Forward Price | Discounted cash flow | Weighted Average    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Measurement input 41 45
Nodal Basis | Discounted cash flow | Minimum    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Measurement input (10) (8)
Nodal Basis | Discounted cash flow | Maximum    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Measurement input (2) (2)
Nodal Basis | Discounted cash flow | Weighted Average    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Measurement input (5) (5)