Variable Interest Entities (Recovery Funding) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity
Other current assets	$ 341	$ 397
Regulatory assets: non-current	8,897	8,181
Regulatory liabilities: current	763	964
Current portion of long-term debt	2,697	2,614
Other current liabilities	1,751	1,601
Long-term debt	30,316	27,025
SCE Recovery Funding LLC
Variable Interest Entity
Other current assets	53	45
Regulatory assets: non-current	1,558	834
Regulatory liabilities: current	34	33
Current portion of long-term debt	47	29
Other current liabilities	6	4
Long-term debt	1,515	809
SCE
Variable Interest Entity
Other current assets	331	384
Regulatory assets: non-current	8,897	8,181
Regulatory liabilities: current	763	964
Current portion of long-term debt	2,197	2,214
Other current liabilities	1,713	1,578
Long-term debt	26,297	24,044
SCE | SCE Recovery Funding LLC
Variable Interest Entity
Debt carrying amount	1,600
Regulatory assets: non-current	1,558	834
Long-term debt	$ 1,515	$ 809