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Finance Receivables and Loans, Net - Schedule of Financing Receivable Gross Charge-Offs (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff | $ 1 |  | $ 160
Year two, originated, current fiscal year, writeoff | 120 |  | 779
Year three, originated, current fiscal year, writeoff | 206 |  | 943
Year four, originated, current fiscal year, writeoff | 200 |  | 511
Year five, originated, current fiscal year, writeoff | 98 |  | 137
More than five years before current fiscal year, writeoff | 51 |  | 154
Revolving loans | 65 |  | 248
Revolving loans converted to term | 4 |  | 16
Total | 745 | $ 758 | 2,948
Write-downs from transfers to held-for-sale |  | 5 |
Consumer |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff | 1 |  | 160
Year two, originated, current fiscal year, writeoff | 120 |  | 779
Year three, originated, current fiscal year, writeoff | 206 |  | 943
Year four, originated, current fiscal year, writeoff | 200 |  | 511
Year five, originated, current fiscal year, writeoff | 98 |  | 137
More than five years before current fiscal year, writeoff | 51 |  | 153
Revolving loans | 64 |  | 246
Revolving loans converted to term | 4 |  | 16
Total | 744 |  | 2,945
Consumer | Automotive |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff | 1 |  | 160
Year two, originated, current fiscal year, writeoff | 120 |  | 779
Year three, originated, current fiscal year, writeoff | 206 |  | 943
Year four, originated, current fiscal year, writeoff | 200 |  | 510
Year five, originated, current fiscal year, writeoff | 98 |  | 137
More than five years before current fiscal year, writeoff | 51 |  | 152
Revolving loans | 0 |  | 0
Revolving loans converted to term | 0 |  | 0
Total | 676 | 688 | 2,681
Write-downs from transfers to held-for-sale |  | 5 | 5
Consumer | Consumer mortgage finance receivables |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff |  |  | 0
Year two, originated, current fiscal year, writeoff |  |  | 0
Year three, originated, current fiscal year, writeoff |  |  | 0
Year four, originated, current fiscal year, writeoff |  |  | 1
Year five, originated, current fiscal year, writeoff |  |  | 0
More than five years before current fiscal year, writeoff |  |  | 1
Revolving loans |  |  | 0
Revolving loans converted to term |  |  | 0
Total | 0 | 1 | 2
Write-downs from transfers to held-for-sale |  | 0 |
Consumer | Other |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff | 0 |  | 0
Year two, originated, current fiscal year, writeoff | 0 |  | 0
Year three, originated, current fiscal year, writeoff | 0 |  | 0
Year four, originated, current fiscal year, writeoff | 0 |  | 0
Year five, originated, current fiscal year, writeoff | 0 |  | 0
More than five years before current fiscal year, writeoff | 0 |  | 0
Revolving loans | 64 |  | 246
Revolving loans converted to term | 4 |  | 16
Total | 68 | 68 | 262
Write-downs from transfers to held-for-sale |  | 0 |
Commercial |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff | 0 |  | 0
Year two, originated, current fiscal year, writeoff | 0 |  | 0
Year three, originated, current fiscal year, writeoff | 0 |  | 0
Year four, originated, current fiscal year, writeoff | 0 |  | 0
Year five, originated, current fiscal year, writeoff | 0 |  | 0
More than five years before current fiscal year, writeoff | 0 |  | 1
Revolving loans | 1 |  | 2
Revolving loans converted to term | 0 |  | 0
Total | 1 | 1 | 3
Write-downs from transfers to held-for-sale |  | $ 0 |
Commercial | Automotive |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Year one, originated, current fiscal year, writeoff | 0 |  | 0
Year two, originated, current fiscal year, writeoff | 0 |  | 0
Year three, originated, current fiscal year, writeoff | 0 |  | 0
Year four, originated, current fiscal year, writeoff | 0 |  | 0
Year five, originated, current fiscal year, writeoff | 0 |  | 0
More than five years before current fiscal year, writeoff | 0 |  | 1
Revolving loans | 1 |  | 2
Revolving loans converted to term | 0 |  | 0
Total | $ 1 |  | $ 3

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- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
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- Definition Amount, excluding accrued interest, of writeoff of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6A + Details
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- Definition Amount, excluding accrued interest, of reversal of credit loss expense on financing receivable transferred out of held-for-investment into held-for-sale classification. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477011/948-310-45-2 + Details
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