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v3.25.2

Subsequent Events (Details) - USD ($) $ in Millions |  | 6 Months Ended
--- | --- | ---
Jul. 17, 2025 | Jun. 30, 2025
Subsequent Event [Line Items] |  |
Vertical risk retention interest |  | 5.00%
Subsequent Event | Private Education Loan Trust 2025-B |  |
Subsequent Event [Line Items] |  |
Vertical risk retention interest | 5.00% |
Subsequent Event | Private Education Loans | Private Education Loan Trust 2025-B |  |
Subsequent Event [Line Items] |  |
Proceeds from sale of debt securities, available-for-sale | $ 497 |
Additional proceeds from sale | 26 |
Debt securities, available-for-sale, realized gain | $ 2 |

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 + Details
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