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Product Warranty and Related Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2025
Accrued Liabilities and Other Liabilities [Abstract] |
Schedule of Policy, Product Warranty and Recall Campaigns |
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
Product warranty and related liabilities |  |  |  |  |  |  |
Warranty balance at beginning of period | $ | 11,698 |  |  | $ | 10,043 |  |  | $ | 10,571 |  |  | $ | 9,295 |
Warranties issued and assumed in period – recall campaigns | 169 |  |  | 171 |  |  | 783 |  |  | 826 |
Warranties issued and assumed in period – product warranty | 1,506 |  |  | 1,143 |  |  | 3,182 |  |  | 2,699 |
Payments | (1,390) |  |  | (1,152) |  |  | (3,922) |  |  | (3,206) |
Adjustments to pre-existing warranties | 1,426 |  |  | 444 |  |  | 2,732 |  |  | 1,080 |
Effect of foreign currency and other | (15) |  |  | 11 |  |  | 50 |  |  | (35) |
Warranty balance at end of period | 13,395 |  |  | 10,660 |  |  | 13,395 |  |  | 10,660 |
Less: Supplier recoveries balance at end of period(a) | 386 |  |  | 512 |  |  | 386 |  |  | 512 |
Warranty balance, net of supplier recoveries at end of period | $ | 13,009 |  |  | $ | 10,147 |  |  | $ | 13,009 |  |  | $ | 10,147 |
__________ (a)The current portion of supplier recoveries is recorded in Accounts and notes receivable, net of allowance and the non-current portion is recorded in Other assets.
| Three Months Ended |  | Nine Months Ended |
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024 |
Product warranty expense, net of recoveries |  |  |  |  |  |  |  |
Warranties issued and assumed in period | $ | 1,675 |  |  | $ | 1,314 |  |  | $ | 3,965 |  |  | $ | 3,525 |  |
Supplier recoveries accrued in period | (81) |  |  | (78) |  |  | (418) |  |  | (216) |  |
Adjustments and other | 1,411 |  |  | 455 |  |  | 2,782 |  |  | 1,045 |  |
Warranty expense, net of supplier recoveries | $ | 3,006 |  |  | $ | 1,691 |  |  | $ | 6,329 |  |  | $ | 4,354 |  |

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- Definition Table which summarizes the activity for policy, product warranty and recall campaigns for reporting periods. + References No definition available. + Details
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Namespace Prefix: | gm_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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