GM Financial Receivables and Transactions - Credit Risk Profile by FICO Score (Details) - GM Financial - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 90,198	$ 92,374
Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2026	8,037	30,399
2025	27,790	20,191
2024	18,092	12,132
2023	10,519	7,216
2022	6,152	3,897
Prior	4,303	1,570
Total	$ 74,893	$ 75,404	$ 76,995
Percent	100.00%	100.00%
Prime – FICO score 680 and greater \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2026	$ 5,711	$ 22,850
2025	20,875	15,204
2024	13,611	9,298
2023	8,028	5,350
2022	4,568	2,712
Prior	2,939	1,027
Total	$ 55,732	$ 56,440
Percent	74.40%	74.90%
Near-prime – FICO score 620 to 679 \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2026	$ 1,026	$ 3,702
2025	3,382	2,456
2024	2,201	1,439
2023	1,269	908
2022	790	571
Prior	635	225
Total	$ 9,303	$ 9,303
Percent	12.40%	12.30%
Sub-prime – FICO score less than 620 \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2026	$ 1,300	$ 3,847
2025	3,534	2,530
2024	2,280	1,395
2023	1,222	958
2022	794	614
Prior	728	318
Total	$ 9,858	$ 9,661
Percent	13.20%	12.80%

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