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Securitizations and Variable Interest Entities (Schedule of Quantitative Information and Net Credit Losses about Securitized and Other Financial Assets Managed Together) (Details) - Off-balance sheet variable interest entities - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Derecognized Assets, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |
Total amount | $ 3,620 |  | $ 2,639
Amount 60 days or more past due | 71 |  | 72
Net credit losses | 32 | $ 6 |
Off-balance-sheet securitization entities | Automotive | Consumer |  |  |
Derecognized Assets, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |
Total amount | 2,444 |  | 1,558
Amount 60 days or more past due | 13 |  | 11
Net credit losses | 4 | 0 |
Whole-loan sales | Automotive | Consumer |  |  |
Derecognized Assets, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |
Total amount | 1,065 |  | 956
Amount 60 days or more past due | 44 |  | 44
Net credit losses | 16 | 1 |
Whole-loan sales | Consumer other | Consumer |  |  |
Derecognized Assets, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |
Total amount | 111 |  | 125
Amount 60 days or more past due | 14 |  | $ 17
Net credit losses | $ 12 | $ 5 |

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- Definition Amount of credit loss after recoveries for transferred financial assets that continue to be recognized in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (e)(5) -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481326/860-20-50-4 + Details
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