XML 37 R24.htm IDEA: XBRL DOCUMENT
v3.25.3

Regulatory Assets and Liabilities | 9 Months Ended
--- | ---
Sep. 30, 2025
Regulatory Assets and Liabilities Disclosure [Abstract] |
Regulatory Assets and Liabilities | Regulatory Assets and Liabilities Regulatory Assets SCE's regulatory assets included on the condensed consolidated balance sheets are:
(in millions) | September 30, 2025 |  | December 31, 2024
Current: |  |  |
Regulatory balancing and memorandum accounts | $ | 2,669 |  |  | $ | 2,723 |
Other | 34 |  |  | 25 |
Total current | 2,703 |  |  | 2,748 |
Long-term: |  |  |
Deferred income taxes | 6,376 |  |  | 5,982 |
Unamortized investments, net of accumulated amortization | 124 |  |  | 115 |
Unamortized losses on reacquired debt | 81 |  |  | 88 |
Regulatory balancing and memorandum accounts | 2,274 |  |  | 867 |
Environmental remediation | 217 |  |  | 222 |
Recovery assets | 1,476 |  |  | 1,512 |
Other | 138 |  |  | 100 |
Total long-term | 10,686 |  |  | 8,886 |
Total regulatory assets | $ | 13,389 |  |  | $ | 11,634 |
For more information, see Note 11 of the 2024 Form 10-K. Regulatory Liabilities SCE's regulatory liabilities included on the condensed consolidated balance sheets are:
(in millions) | September 30, 2025 |  | December 31, 2024
Current: |  |  |
Regulatory balancing and memorandum accounts | $ | 1,017 |  |  | $ | 1,144 |
Energy derivatives | 54 |  |  | 165 |
Other | 38 |  |  | 38 |
Total current | 1,109 |  |  | 1,347 |
Long-term: |  |  |
Costs of removal | 2,693 |  |  | 2,520 |
Deferred income taxes | 2,143 |  |  | 2,163 |
Recoveries in excess of ARO liabilities | 1,982 |  |  | 1,748 |
Regulatory balancing and memorandum accounts | 2,175 |  |  | 2,023 |
Pension and other postretirement benefits | 1,708 |  |  | 1,690 |
Other | 35 |  |  | 15 |
Total long-term | 10,736 |  |  | 10,159 |
Total regulatory liabilities | $ | 11,845 |  |  | $ | 11,506 |
Net Regulatory Balancing and Memorandum 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) | September 30, 2025 |  | December 31, 2024
Asset (liability) |  |  |
Energy procurement related costs | $ | 325 |  |  | $ | (97) |
Public purpose and energy efficiency | (2,189) |  |  | (1,708) |
GRC related balancing accounts 1 | 1,188 |  |  | 976 |
FERC related balancing accounts | 48 |  |  | 125 |
Wildfire risk mitigation and insurance 2 | 151 |  |  | 741 |
TKM Settlement cost recovery 3 | 1,619 |  |  | — |
Wildfire and drought restoration 4 | 291 |  |  | 238 |
Tax accounting memorandum account | (72) |  |  | (40) |
Other | 390 |  |  | 188 |
Assets, net of liabilities | $ | 1,751 |  |  | $ | 423 |
1 The GRC related balancing accounts primarily consist of the base revenue requirement balancing account ("BRRBA"), the vegetation management balancing account ("VMBA"), the Wildfire Risk Mitigation balancing account ("WRMBA") and the risk management balancing account ("RMBA"). The 2025 GRC decision approved the establishment of a two-way Grid Hardening Balancing Account to track the difference between the actual TUG program costs up to the approved mile limit and the authorized amounts, with spending in excess of 110% of authorized amounts subject to reasonableness review. Additionally, the final decision authorized SCE to establish a memorandum account to track and record capital expenditures above the amounts authorized to support SCE's grid readiness for future transportation electrification demand, with cost recovery subject to reasonableness review. 2 The wildfire risk mitigation and insurance regulatory assets represent wildfire-related costs that are probable of future recovery from customers, subject to a reasonableness review. The Wildfire Expense Memorandum Account ("WEMA") is used to track incremental wildfire insurance costs and uninsured wildfire-related financing, legal and claim costs related to the Other Wildfire Events that SCE believes are probable of recovery. See Note 12 for further details. The Wildfire Mitigation Plan Memorandum Account is used to track costs incurred to implement SCE's wildfire mitigation plan that are not currently reflected in SCE's revenue requirements. The Fire Risk Mitigation Memorandum Account is used to track costs related to the reduction of fire risk that are incremental to costs approved for recovery in SCE's GRCs that are not tracked in any other wildfire-related memorandum account. 3 Cost recoveries authorized under the TKM Settlement Agreement. See Note 12 for more information. 4 The wildfire and drought restoration regulatory assets represent restoration costs that are recorded in a Catastrophic Event Memorandum Account.

X
- References No definition available. + Details
Name: | us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for detailed information about regulatory assets and liabilities, including current and noncurrent assets created when regulatory agencies permit the deferral of costs to the balance sheet that would otherwise be required to appear on the company's income statement and would be charged against current expenses or revenues, as well as current and noncurrent liabilities created when regulatory agencies permit. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration