Variable Interest Entities (Recovery Funding) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entities
Other current assets	$ 319	$ 341
Regulatory assets: non-current	8,660	8,897
Regulatory liabilities: current	874	763
Current portion of long-term debt	2,548	2,697
Other current liabilities	1,717	1,538
Long-term debt	32,303	30,316
SCE Recovery Funding LLC
Variable Interest Entities
Other current assets	80	53
Regulatory assets: non-current	1,524	1,558
Regulatory liabilities: current	35	34
Current portion of long-term debt	48	47
Other current liabilities	20	6
Long-term debt	1,492	1,515
SCE
Variable Interest Entities
Other current assets	314	331
Regulatory assets: non-current	8,660	8,897
Regulatory liabilities: current	874	763
Current portion of long-term debt	1,248	2,197
Other current liabilities	2,104	1,535
Long-term debt	28,582	26,297
SCE | SCE Recovery Funding LLC
Variable Interest Entities
Debt, face amount	1,600
Regulatory assets: non-current	1,524	1,558
Long-term debt	$ 1,492	$ 1,515