Derivative Instruments (Balance Sheet) (Details) - SCE - Commodity derivative contracts - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Derivative Liabilities
Cash collateral posted for liability	$ 180	$ 121
Other Current Assets
Derivative Assets
Gross amounts recognized	89	94
Gross amounts offset in the consolidated balance sheets	(10)	(3)
Net amounts presented in the consolidated balance sheets	79	91
Derivative Liabilities
Cash collateral not offset against liability	80	47
Other Current Liabilities
Derivative Liabilities
Gross amounts recognized	110	77
Gross amounts offset in the consolidated balance sheets	(10)	(3)
Cash collateral posted/received	$ (100)	$ (74)

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