Finance Receivables - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Outstanding balance of the transferred finance receivables | $ 1,200 | $ 1,200 | |||
| Retail Finance Receivables | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Allowance for credit loss of finance receivables, percentage | 3.70% | 3.70% | 3.50% | ||
| Nonaccrual loans | $ 1,100 | $ 1,100 | $ 1,100 | ||
| Commercial Finance Receivables | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Nonaccrual loans | $ 0 | ||||
| Loan modifications | $ 0 | $ 0 | $ 0 | $ 0 | |
| Commercial Finance Receivables | Floorplan Advances | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Percent of revolving balance | 99.30% | 99.30% | 99.10% | ||