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REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Current Regulatory Balancing Accounts, Net) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Regulatory Assets [Line Items] |  |  |
Interest income | $ 606 | $ 162 | $ 20
Regulatory assets | 300 | 296 |
Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 1,669 | 1,658 |
Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Interest income | 547 | 153 | $ 18
Total regulatory balancing accounts | 5,660 | 3,264 |
Electric distribution | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 1,092 | 448 |
Electric transmission | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 200 | 228 |
Electric transmission | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 99 | 96 |
Gas distribution and transmission | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 224 | 66 |
Gas distribution and transmission | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 144 | 72 |
Energy procurement | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 77 | 428 |
Energy procurement | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 1,002 | 684 |
Public purpose programs | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 299 | 272 |
Public purpose programs | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 137 | 358 |
Fire hazard prevention memorandum account | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 40 | 0 |
Wildfire mitigation plan memorandum account | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 161 | 0 |
Wildfire mitigation balancing account | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 125 | 0 |
Wildfire mitigation balancing account | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 12 | 2 |
Nuclear decommissioning adjustment mechanism | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 216 | 8 |
Vegetation management balancing account | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 340 | 137 |
Insurance premium costs |  |  |
Regulatory Assets [Line Items] |  |  |
Regulatory assets | 0 | 48 |
Insurance premium costs | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 227 | 602 |
Residential uncollectibles balancing accounts | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 507 | 126 |
Catastrophic event memorandum account | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 413 | 144 |
General rate case memorandum accounts | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 1,097 | 0 |
SFGO sale | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 79 | 152 |
Other | Regulatory Balancing Accounts Payable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | 449 | 504 |
Other | Regulatory Balancing Accounts Receivable |  |  |
Regulatory Assets [Line Items] |  |  |
Total regulatory balancing accounts | $ 389 | $ 595 |

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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. + 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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