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SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Financial Statement Impact) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
SB 901 securitization regulatory asset |  |
Beginning balance | $ 17,189 |
Ending balance | 15,561 | $ 17,189
SB 901 securitization regulatory liability |  |
Beginning balance | (19,444) |
Ending balance | (19,417) | (19,444)
SB 901 Securitization Inception |  |
SB 901 securitization regulatory liability |  |
Beginning balance | (6,628) | (5,800)
Amortization | 383 | 451
Additions | (50) | (1,279)
Ending balance | (6,295) | (6,628)
Increase in regulatory liabilities | 50 | 1,279
SB 901 Securitization Inception | Customer credit trust |  |
SB 901 securitization regulatory liability |  |
Additions | (16) | (12)
Increase in regulatory liabilities | 16 | 12
SB 901 Securitization Inception |  |
SB 901 securitization regulatory asset |  |
Beginning balance | 5,249 | 5,378
Amortization | (55) | (129)
Ending balance | $ 5,194 | $ 5,249

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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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