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Fair Value Measurements (Level 3 Inputs) (Details) - SCE - Level 3 - Congestion revenue rights (GWh) - Auction prices $ in Millions | Jun. 30, 2024 USD ($) $ / MWh | Dec. 31, 2023 USD ($) $ / MWh
--- | --- | ---
Fair Value Measurements |  |
Fair value, Level 3 assets | $ | $ 82 | $ 91
Fair value, Level 3 liabilities | $ | $ 3 |
Minimum |  |
Fair Value Measurements |  |
Derivative Asset (Liability) Net, Measurement Input | (12.38) | (6.44)
Maximum |  |
Fair Value Measurements |  |
Derivative Asset (Liability) Net, Measurement Input | 17,972.06 | 16,574.36
Weighted Average |  |
Fair Value Measurements |  |
Derivative Asset (Liability) Net, Measurement Input | 4.55 | 2.74

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