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Regulatory Assets and Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2025
Regulatory Assets and Liabilities Disclosure [Abstract] |
Schedule of Regulatory Assets | Regulatory Assets SCE's regulatory assets included on the condensed consolidated balance sheets are:
(in millions) | March 31, 2025 |  | December 31, 2024
Current: |  |  |
Regulatory balancing and memorandum accounts | $ | 2,097 |  |  | $ | 2,723 |
Other | 27 |  |  | 25 |
Total current | 2,124 |  |  | 2,748 |
Long-term: |  |  |
Deferred income taxes | 6,095 |  |  | 5,982 |
Unamortized investments, net of accumulated amortization | 120 |  |  | 115 |
Unamortized losses on reacquired debt | 85 |  |  | 88 |
Regulatory balancing and memorandum accounts | 2,436 |  |  | 867 |
Environmental remediation | 219 |  |  | 222 |
Recovery assets | 1,500 |  |  | 1,512 |
Other | 93 |  |  | 100 |
Total long-term | 10,548 |  |  | 8,886 |
Total regulatory assets | $ | 12,672 |  |  | $ | 11,634 |
Schedule of Regulatory Liabilities | Regulatory Liabilities SCE's regulatory liabilities included on the condensed consolidated balance sheets are:
(in millions) | March 31, 2025 |  | December 31, 2024
Current: |  |  |
Regulatory balancing and memorandum accounts | $ | 386 |  |  | $ | 1,144 |
Energy derivatives | 142 |  |  | 165 |
Other | 35 |  |  | 38 |
Total current | 563 |  |  | 1,347 |
Long-term: |  |  |
Costs of removal | 2,585 |  |  | 2,520 |
Deferred income taxes | 2,150 |  |  | 2,163 |
Recoveries in excess of ARO liabilities | 1,714 |  |  | 1,748 |
Regulatory balancing and memorandum accounts | 2,264 |  |  | 2,023 |
Pension and other postretirement benefits | 1,696 |  |  | 1,690 |
Other | 21 |  |  | 15 |
Total long-term | 10,430 |  |  | 10,159 |
Total regulatory liabilities | $ | 10,993 |  |  | $ | 11,506 |
Schedule of Regulatory Balancing Accounts | The following table summarizes the significant components of regulatory balancing and memorandum accounts included in the above tables of regulatory assets and liabilities:
(in millions) | March 31, 2025 |  | December 31, 2024
Asset (liability) |  |  |
Energy procurement related costs | $ | (106) |  |  | $ | (97) |
Public purpose and energy efficiency | (1,930) |  |  | (1,708) |
GRC related balancing accounts | 992 |  |  | 976 |
FERC related balancing accounts | 131 |  |  | 125 |
Wildfire risk mitigation and insurance | 731 |  |  | 741 |
TKM Settlement cost recovery 1 | 1,556 |  |  | — |
Wildfire and drought restoration | 284 |  |  | 238 |
Tax accounting memorandum account | (88) |  |  | (40) |
Other | 313 |  |  | 188 |
Assets, net of liabilities | $ | 1,883 |  |  | $ | 423 |
1 Cost recoveries authorized under the TKM Settlement Agreement. See Note 12 for more information.

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- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478742/980-340-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478574/980-715-50-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478742/980-340-50-2 + Details
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- Definition Tabular disclosure of regulatory liabilities. Detailed information about liabilities that result from rate actions of a regulator. Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 405 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477571/980-405-25-1 + Details
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