Derivative Instruments - Narrative (Details) - SCE - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Derivatives
Cash collateral posted	$ 60	$ 105
Commodity
Derivatives
Cash collateral posted	0	0
Derivative additional collateral amount	5	3
Cash collateral posted for liability	53	66
Cash collateral posted	34	57
Commodity \| Other Current Liabilities
Derivatives
Cash collateral posted	34	57
Commodity \| Other Current Assets
Derivatives
Cash collateral not offset against liability	$ 19	$ 9

Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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Fair value of securities pledged as collateral against derivative liabilities.

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