Finance Receivables - Schedule of Modified Financing Receivables Financial Effects (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Personal Loans | ||||
| Financing Receivable, Modified [Line Items] | ||||
| Weighted-average interest rate reduction | 18.41% | 19.48% | 17.28% | 18.41% |
| Weighted-average term extension (months) | 24 months | 19 months | 24 months | 23 months |
| Principal/interest forgiveness | $ 9 | $ 10 | $ 16 | $ 21 |
| Auto Finance | ||||
| Financing Receivable, Modified [Line Items] | ||||
| Weighted-average interest rate reduction | 13.40% | 13.83% | 13.17% | 12.20% |
| Weighted-average term extension (months) | 15 months | 15 months | 15 months | 23 months |
| Principal/interest forgiveness | $ 0 | $ 0 | $ 0 | $ 0 |