GM Financial Receivables and Transactions - Credit Risk Profile by FICO Score (Details) - GM Financial - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 94,236	$ 95,294
Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	17,636	31,101
2024	26,063	20,100
2023	15,986	12,802
2022	9,788	7,642
2021	5,620	3,575
Prior	2,744	847
Total	$ 77,837	$ 76,066	$ 73,335
Percent	100.00%	100.00%
Prime – FICO score 680 and greater \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 13,597	$ 24,155
2024	20,025	15,814
2023	12,446	9,749
2022	7,360	5,424
2021	3,959	2,559
Prior	1,810	366
Total	$ 59,196	$ 58,067
Percent	76.10%	76.30%
Near-prime – FICO score 620 to 679 \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 2,048	$ 3,547
2024	3,046	2,227
2023	1,821	1,507
2022	1,194	1,077
2021	804	473
Prior	393	159
Total	$ 9,306	$ 8,990
Percent	12.00%	11.80%
Sub-prime – FICO score less than 620 \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 1,992	$ 3,399
2024	2,992	2,059
2023	1,719	1,546
2022	1,234	1,141
2021	857	543
Prior	541	322
Total	$ 9,335	$ 9,008
Percent	12.00%	11.80%

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