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SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Tables) | 3 Months Ended
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Mar. 31, 2025
Debt Disclosure [Abstract] |
Schedule of Financial Statement Impact of Securitization | The following tables illustrate the changes in the SB 901 securitization’s impact on the Utility’s regulatory assets and liabilities:
| SB 901 securitization regulatory asset
(in millions) | 2025 |  | 2024
Balance at January 1 | $ | 5,194 |  |  | $ | 5,249 |
Amortization | (19) |  |  | (2) |
Balance at March 31 | $ | 5,175 |  |  | $ | 5,247 |
| SB 901 securitization regulatory liability |
(in millions) | 2025 |  | 2024 |
Balance at January 1 | $ | (6,295) |  |  | $ | (6,628) |  |
Amortization | 93 |  | 82 |
Additions(1) | (1) |  |  | (4) |  |
Balance at March 31 | $ | (6,203) |  |  | $ | (6,550) |  |
(1) Includes $1 million and $4 million of returns on investments in the customer credit trust expected to be credited to customers for the three months ended March 31, 2025 and 2024, respectively.

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