GM Financial Receivables and Transactions - Credit Risk Profile by FICO Score (Details) - GM Financial - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 93,618	$ 95,294
Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	9,141	31,101
2024	28,510	20,100
2023	18,006	12,802
2022	11,240	7,642
2021	6,586	3,575
Prior	3,511	847
Total	$ 76,995	$ 76,066	$ 73,230
Percent	100.00%	100.00%
Prime – FICO score 680 and greater \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 7,142	$ 24,155
2024	22,001	15,814
2023	14,108	9,749
2022	8,508	5,424
2021	4,659	2,559
Prior	2,322	366
Total	$ 58,740	$ 58,067
Percent	76.30%	76.30%
Near-prime – FICO score 620 to 679 \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 1,029	$ 3,547
2024	3,311	2,227
2023	2,017	1,507
2022	1,347	1,077
2021	936	473
Prior	502	159
Total	$ 9,142	$ 8,990
Percent	11.90%	11.80%
Sub-prime – FICO score less than 620 \| Retail Finance Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 970	$ 3,399
2024	3,197	2,059
2023	1,881	1,546
2022	1,385	1,141
2021	992	543
Prior	687	322
Total	$ 9,113	$ 9,008
Percent	11.80%	11.80%

Financing Receivable, Before Allowance For Credit Loss, Percent

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Amortized cost of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

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