Finance Receivables - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| Retail Finance Receivables | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Allowance for credit loss of finance receivables, percentage | 3.40% | 3.40% | 3.20% | ||
| Nonaccrual loans | $ 910 | $ 910 | $ 958 | ||
| Commercial Finance Receivables | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Nonaccrual loans | 0 | 0 | $ 0 | ||
| Loan modifications | $ 0 | $ 0 | $ 0 | $ 0 | |
| Commercial Finance Receivables | Floorplan Advances | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Percent of revolving balance | 99.10% | 99.10% | 99.50% | ||