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Finance Receivables and Loans, Net - Schedule of Sales of Financing Receivables and Loans (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total sales and transfers | $ 2,321 | $ 1,153
Consumer | Automotive |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total sales and transfers | 0 | 1,108
Consumer | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total sales and transfers | 2,248 | 0
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total sales and transfers | $ 73 | $ 45

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