Variable Interest Entities (Recovery Funding) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Variable Interest Entities
Other current assets	$ 329	$ 341
Regulatory assets: non-current	8,806	8,897
Regulatory liabilities: current	988	763
Current portion of long-term debt	2,097	2,697
Other current liabilities	1,425	1,538
Long-term debt	32,576	30,316
SCE Recovery Funding LLC
Variable Interest Entities
Other current assets	77	53
Regulatory assets: non-current	1,547	1,558
Regulatory liabilities: current	32	34
Current portion of long-term debt	47	47
Other current liabilities	20	6
Long-term debt	1,516	1,515
SCE
Variable Interest Entities
Other current assets	319	331
Regulatory assets: non-current	8,806	8,897
Regulatory liabilities: current	988	763
Current portion of long-term debt	1,597	2,197
Other current liabilities	1,431	1,535
Long-term debt	28,555	26,297
SCE | SCE Recovery Funding LLC
Variable Interest Entities
Debt carrying amount	1,600
Regulatory assets: non-current	1,547	1,558
Long-term debt	$ 1,516	$ 1,515