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Finance Receivables and Loans, Net - Schedule of Accounts, Notes, Loans and Financing Receivables (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | $ 133,485 | $ 136,030
Unamortized premiums and discounts and deferred fees and costs | 2,300 | 2,300
Accrued interest receivable | 757 | 839
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 100,831 | 103,285
Consumer | Automotive |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 83,868 | 83,757
Consumer | Consumer mortgage finance receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 16,963 | 17,234
Interest-only mortgage loans | 12 | 12
Consumer | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 0 | 2,294
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 32,654 | 32,745
Commercial | Automotive |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 16,939 | 18,259
Commercial | Consumer mortgage finance receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | 6,731 | 6,274
Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total finance receivables and loans | $ 8,984 | $ 8,212

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- Definition Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481598/310-20-45-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -SubTopic 20 -Topic 310 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481569/310-20-50-3 + Details
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