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Regulatory Assets and Liabilities (Balancing Accounts) (Details) - SCE - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | $ 2,289 | $ 2,287
Percentage of vegetation management | 115.00% | 115.00%
Percentage of Wildfire Covered Conductor Program | 110.00% | 110.00%
Energy resource recovery account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | $ 1,580 | $ 759
Portfolio allocation balancing account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | (73) | (183)
New system generation balancing account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | (63) | 73
Public purpose programs and energy efficiency programs |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | (1,577) | (1,066)
Base revenue requirement balancing account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 1,108 | 849
GRC wildfire mitigation balancing accounts |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 67 | 12
Greenhouse gas auction revenue and low carbon fuel standard revenue |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | (289) | (298)
FERC balancing accounts |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | (123) | 55
Wildfire and drought restoration accounts |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 352 | 299
Wildfire expense memorandum account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 1,168 | 1,456
COVID 19-related memorandum accounts |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 67 | 94
Customer service re-platform (CSRP) |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 64 | 128
Tax accounting memorandum account and pole loading balancing account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | 90 | 171
Excess Bond and Power Charge Balancing Account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | (56) |
Other balancing account |  |
Regulatory Assets and Liabilities |  |
Net regulatory assets (liabilities) | $ (26) | $ (62)

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- Definition Threshold percentage of authorized amount of vegetation management expenses to be tracked. + References No definition available. + Details
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- Definition The net amount of all regulatory assets less all regulatory liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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