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REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Liabilities) (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2022
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Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | $ 19,900 | $ 19,444 |
Cost of removal obligations |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 8,527 | 8,191 |
Public purpose programs |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 1,332 | 1,238 |
Employee benefit plans |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 1,043 | 1,032 |
Transmission tower wireless licenses |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 330 | 384 |
SFGO sale |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 119 | 185 |
SB 901 securitization |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 6,457 | 6,628 | $ 5,540
Wildfire self-insurance |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | 600 | 407 |
Other |  |  |
Regulatory Liabilities [Line Items] |  |  |
Total noncurrent regulatory liabilities | $ 1,492 | $ 1,379 |

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