GM Financial Receivables and Transactions - Credit Risk Profile by FICO Score (Details) - GM Financial - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 92,374	$ 95,294
Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	30,399	31,101
2024	20,191	20,100
2023	12,132	12,802
2022	7,216	7,642
2021	3,897	3,575
Prior	1,570	847
Total	$ 75,404	$ 76,066
Percent	100.00%	100.00%
Retail Finance Receivables \| Prime – FICO score 680 and greater
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 22,850	$ 24,155
2024	15,204	15,814
2023	9,298	9,749
2022	5,350	5,424
2021	2,712	2,559
Prior	1,027	366
Total	$ 56,440	$ 58,067
Percent	74.90%	76.30%
Retail Finance Receivables \| Near-prime – FICO score 620 to 679
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 3,702	$ 3,547
2024	2,456	2,227
2023	1,439	1,507
2022	908	1,077
2021	571	473
Prior	225	159
Total	$ 9,303	$ 8,990
Percent	12.30%	11.80%
Retail Finance Receivables \| Sub-prime – FICO score less than 620
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 3,847	$ 3,399
2024	2,530	2,059
2023	1,395	1,546
2022	958	1,141
2021	614	543
Prior	318	322
Total	$ 9,661	$ 9,008
Percent	12.80%	11.80%

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