Variable Interest Entities (Recovery Funding) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity
Other current assets	$ 278	$ 397
Regulatory assets: non-current	8,774	8,181
Regulatory liabilities: current	717	964
Current portion of long-term debt	2,939	2,614
Other current liabilities	1,754	1,601
Long-term debt	29,532	27,025
SCE Recovery Funding LLC
Variable Interest Entity
Other current assets	78	45
Regulatory assets: non-current	1,571	834
Regulatory liabilities: current	22	33
Current portion of long-term debt	54	29
Other current liabilities	26	4
Long-term debt	1,539	809
SCE
Variable Interest Entity
Other current assets	269	384
Regulatory assets: non-current	8,774	8,181
Regulatory liabilities: current	717	964
Current portion of long-term debt	2,939	2,214
Other current liabilities	1,691	1,578
Long-term debt	25,459	24,044
SCE | SCE Recovery Funding LLC
Variable Interest Entity
Debt carrying amount	1,600
Regulatory assets: non-current	1,571	834
Long-term debt	$ 1,539	$ 809