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REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Liabilities) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | $ 16,921 | $ 11,999
Proceeds received from sale of transmission tower wireless licenses, to be refunded to customers | 433 |
Authorized amount of shareholder tax benefits to be returned | 7,590 |
Federal Energy Regulatory Commission |  |
Regulatory Liabilities [Line Items] |  |
Proceeds received from sale of transmission tower wireless licenses, to be refunded to customers | 302 |
California Public Utilities Commission |  |
Regulatory Liabilities [Line Items] |  |
Proceeds received from sale of transmission tower wireless licenses, to be refunded to customers | 131 |
Cost of removal obligations |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 7,617 | 7,306
Recoveries in excess of AROs |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 0 | 388
Public purpose programs |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 1,117 | 946
Employee benefit plans |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 1,239 | 1,229
Transmission tower wireless licenses |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 433 | 446
SFGO sale |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 284 | 343
SB 901 Securitization |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | 5,380 | 0
Other |  |
Regulatory Liabilities [Line Items] |  |
Total long-term regulatory liabilities | $ 851 | $ 1,341

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