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SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Financial Statement Impact) (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Debt [Line Items] |  |  |  |
Regulatory assets | $ 16,333 |  | $ 17,189 |
Ending balance | 16,333 |  |  |
Beginning balance | (19,444) |  |  |
Ending balance | (19,667) |  |  |
SB 901 Securitization Inception |  |  |  |
Debt [Line Items] |  |  |  |
Beginning balance | (6,628) | $ (5,800) |  |
Amortization | 82 | 136 |  |
Additions | (4) | (273) |  |
Ending balance | (6,550) | (5,937) |  |
SB 901 Securitization Inception | Customer credit trust |  |  |  |
Debt [Line Items] |  |  |  |
Additions | (4) | 0 |  |
SB 901 Securitization Inception |  |  |  |
Debt [Line Items] |  |  |  |
Regulatory assets | 5,247 | 5,329 | $ 5,249 | $ 5,378
Amortization | (2) | (49) |  |
Ending balance | $ 5,247 | $ 5,329 |  |

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- Definition The expense charged against earnings during the period to allocate the capitalized costs of regulatory assets over the periods expected to benefit from such costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition The increase (decrease) during the reporting period in regulated liabilities. Regulated liabilities are created when regulatory agency permits an entity to defer revenues to the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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- Definition The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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