Finance Receivables and Loans, Net - Schedule of Purchases of Financing Receivables and Loans (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total purchases of finance receivables and loans | $ 1,624 | $ 757 |
| Consumer | Consumer automotive | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total purchases of finance receivables and loans | 1,622 | 749 |
| Consumer | Consumer mortgage | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total purchases of finance receivables and loans | 0 | 8 |
| Commercial | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total purchases of finance receivables and loans | $ 2 | $ 0 |