Derivative Instruments (Balance Sheet) (Details) - SCE - Commodity derivative contracts - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Derivative Assets
Gross amounts recognized	$ 459	$ 76
Gross amounts offset in the consolidated balance sheets	(119)	(32)
Cash collateral received	(99)	0
Net amounts presented in the consolidated balance sheets	241	44
Cash collateral received for asset	99
Derivative Liabilities
Gross amounts recognized	120	48
Gross amounts offset in the consolidated balance sheets	(119)	(32)
Cash collateral posted	0	(16)
Net amounts presented in the consolidated balance sheets	1	0
Cash collateral posted for liability		65
Net Asset
Gross amounts recognized	339	28
Gross amounts offset in the consolidated balance sheets	0	0
Netting and Collateral, Total	(99)	16
Net amounts presented in the consolidated balance sheets	240	44
Other Current Assets
Derivative Assets
Gross amounts recognized	459	70
Gross amounts offset in the consolidated balance sheets	(119)	(30)
Cash collateral received	(99)	0
Net amounts presented in the consolidated balance sheets	241	40
Derivative Liabilities
Cash collateral posted for liability		49
Other long-term assets
Derivative Assets
Gross amounts recognized	0	6
Gross amounts offset in the consolidated balance sheets	0	(2)
Cash collateral received		0
Net amounts presented in the consolidated balance sheets	0	4
Other Current Liabilities
Derivative Liabilities
Gross amounts recognized	120	46
Gross amounts offset in the consolidated balance sheets	(119)	(30)
Cash collateral posted		(16)
Net amounts presented in the consolidated balance sheets	1	0
Other long-term liabilities
Derivative Liabilities
Gross amounts recognized	0	2
Gross amounts offset in the consolidated balance sheets	0	(2)
Cash collateral posted		0
Net amounts presented in the consolidated balance sheets	$ 0	$ 0

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