Variable Interest Entities - Summarizes of Recovery Funding (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Variable Interest Entity
Other current assets	$ 418	$ 341
Regulatory assets: non-current	8,886	8,897
Regulatory liabilities: current	1,347	763
Current portion of long-term debt	2,049	2,697
Other current liabilities	1,439	1,538
Long-term debt	33,534	30,316
SCE Recovery Funding LLC
Variable Interest Entity
Other current assets	49	53
Regulatory assets: non-current	1,512	1,558
Regulatory liabilities: current	30	34
Current portion of long-term debt	49	47
Other current liabilities	6	6
Long-term debt	$ 1,468	$ 1,515