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REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Assets) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2022
--- | --- | --- | ---
Regulatory Assets [Line Items] |  |  |
Regulatory assets | $ 16,333 | $ 17,189 |
Pension benefits |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 339 | 348 |
Environmental compliance costs |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 1,122 | 1,218 |
Price risk management |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 166 | 160 |
Catastrophic event memorandum account |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 1,031 | 1,074 |
Wildfire expense memorandum account |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 2,455 | 2,915 |
Deferred income taxes |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 3,748 | 3,543 |
Financing costs |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 192 | 196 |
SB 901 Securitization |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 5,247 | 5,249 | $ 5,500
General rate case memorandum accounts |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 992 | 1,291 |
Other |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | $ 1,041 | $ 1,195 |

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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//1943274/2147481878/980-340-50-1 + Details
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