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SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Narrative) (Details) - USD ($) $ in Millions |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 28, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2024
Debt [Line Items] |  |  |  |  |  |  |
Regulatory assets | $ 15,551 |  | $ 15,551 |  |  |  | $ 15,561
Regulatory liabilities | 19,637 |  | 19,637 |  |  |  | 19,417
SB 901 securitization |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Regulatory liabilities | 6,203 |  | 6,203 |  | $ 5,540 |  | 6,295
SB 901 securitization | Secured Debt |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Initial shareholder contribution | 669 | $ 350 |  |  | 2,000 | $ 1,000 |
Additional contributions funded by tax benefits |  |  | 7,590 |  |  |  |
Amortization of regulatory asset and liability |  |  | 74 | $ 80 |  |  |
Nothern California Wild Fire |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Loss contingency, costs incurred |  |  |  |  | 7,500 |  |
SB 901 securitization |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Regulatory assets | $ 5,175 |  | $ 5,175 |  | $ 5,500 |  | $ 5,194

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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. + 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 + Details
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