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REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Assets) (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2022
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Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | $ 15,853 | $ 15,561 |
Pension benefits |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 682 | 673 |
Environmental compliance costs |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 1,109 | 1,172 |
Price risk management |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 104 | 167 |
Catastrophic event memorandum account |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 762 | 742 |
Wildfire-related accounts |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 1,721 | 1,697 |
Deferred income taxes |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 5,242 | 4,771 |
Financing costs |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 209 | 216 |
SB 901 securitization |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 5,139 | 5,194 | $ 5,500
General rate case memorandum accounts |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | 78 | 95 |
Other |  |  |
Regulatory Assets [Line Items] |  |  |
Total noncurrent regulatory assets | $ 807 | $ 834 |

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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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