Derivative Instruments (Balance Sheet) (Details) - SCE - Commodity derivative contracts - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivative Liabilities
Cash collateral posted for liability	$ 121
Other Current Assets
Derivative Assets
Gross amounts recognized	94	$ 459
Gross amounts offset in the consolidated balance sheets	(3)	(119)
Cash collateral posted/received	0	(99)
Net amounts presented in the consolidated balance sheets	91	241
Derivative Liabilities
Cash collateral not offset against liability	47
Other Current Liabilities
Derivative Liabilities
Gross amounts recognized	77	120
Gross amounts offset in the consolidated balance sheets	(3)	(119)
Cash collateral posted/received	(74)	0
Net amounts presented in the consolidated balance sheets	$ 0	$ 1

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