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v3.23.1

Fair Value Measurements (Schedule Of Valuation Process And Unobservable Inputs) (Details) - Power $ in Millions | Mar. 31, 2023 USD ($) $ / MWh | Dec. 31, 2022 USD ($) $ / MWh $ / MMBTU
--- | --- | ---
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Derivative assets | $ | $ 6 | $ 20
Derivative liabilities | $ | $ (53) | $ (41)
Commodity Forward Price | Discounted cash flow | Minimum |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | 22 | 38
Commodity Forward Price | Discounted cash flow | Maximum |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | 74 | 89
Commodity Forward Price | Discounted cash flow | Weighted Average |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | 46 | 51
Nodal Basis | Discounted cash flow | Minimum |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | (9) | (10)
Nodal Basis | Discounted cash flow | Maximum |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | (1) | (1)
Nodal Basis | Discounted cash flow | Weighted Average |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | (4) | (4)
Commodity Future Price | Discounted cash flow | Minimum |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Derivative Asset (Liability) Net, Measurement Input [Extensible Enumeration] | Commodity Future Price |
Commodity Future Price | Discounted cash flow | Maximum |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Derivative Asset (Liability) Net, Measurement Input [Extensible Enumeration] | Commodity Future Price |
Commodity Future Price | Discounted cash flow | Weighted Average |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Measurement input | $ / MMBTU |  | 0

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