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Finance Receivables and Loans, Net - Schedule of Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance, beginning balance | $ 3,416 | $ 3,572 | $ 3,714 | $ 3,587 | $ 3,587
Charge-offs | (662) | (744) | (2,009) | (2,178) | (2,948)
Recoveries | 267 | 227 | 741 | 687 |
Net charge-offs | (395) | (517) | (1,268) | (1,491) |
Write-downs from transfers to held-for-sale |  |  |  | (5) |
Provision for credit losses | 415 | 645 | 990 | 1,609 |
Other (b) | 24 | 0 | 24 | 0 |
Allowance, ending balance | 3,460 | 3,700 | 3,460 | 3,700 | 3,714
Consumer |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Charge-offs |  |  | (2,007) |  | (2,945)
Consumer | Automotive |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance, beginning balance | 3,166 | 3,055 | 3,170 | 3,083 | 3,083
Charge-offs | (662) | (683) | (1,937) | (1,976) | (2,681)
Recoveries | 263 | 216 | 727 | 654 |
Net charge-offs | (399) | (467) | (1,210) | (1,322) |
Write-downs from transfers to held-for-sale |  |  |  | (5) | (5)
Provision for credit losses | 419 | 578 | 1,226 | 1,410 |
Other (b) | 0 | 0 | 0 | 0 |
Allowance, ending balance | 3,186 | 3,166 | 3,186 | 3,166 | 3,170
Consumer | Consumer mortgage finance receivables |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance, beginning balance | 17 | 19 | 19 | 21 | 21
Charge-offs | 0 | 0 | (2) | (1) | (2)
Recoveries | 3 | 1 | 6 | 3 |
Net charge-offs | 3 | 1 | 4 | 2 |
Write-downs from transfers to held-for-sale |  |  |  | 0 |
Provision for credit losses | (3) | (3) | (4) | (6) |
Other (b) | 0 | 2 | (2) | 2 |
Allowance, ending balance | 17 | 19 | 17 | 19 | 19
Consumer | Other |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance, beginning balance |  | 302 | 319 | 293 | 293
Charge-offs |  | (61) | (68) | (199) | (262)
Recoveries |  | 9 | 5 | 23 |
Net charge-offs |  | (52) | (63) | (176) |
Write-downs from transfers to held-for-sale |  |  |  | 0 |
Provision for credit losses |  | 58 | (257) | 191 |
Other (b) |  | (1) | 1 | (1) |
Allowance, ending balance | 0 | 307 | 0 | 307 | 319
Commercial |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance, beginning balance | 233 | 196 | 206 | 190 | 190
Charge-offs | 0 | 0 | (2) | (2) | (3)
Recoveries | 1 | 1 | 3 | 7 |
Net charge-offs | 1 | 1 | 1 | 5 |
Write-downs from transfers to held-for-sale |  |  |  | 0 |
Provision for credit losses | (1) | 12 | 25 | 14 |
Other (b) | 24 | (1) | 25 | (1) |
Allowance, ending balance | $ 257 | $ 208 | 257 | $ 208 | 206
Commercial | Automotive |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Charge-offs |  |  | $ (2) |  | $ (3)

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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