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Product Warranty and Related Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2022
Accrued Liabilities and Other Liabilities [Abstract] |
Schedule of Policy, Product Warranty and Recall Campaigns |
| Three Months Ended |  | Nine Months Ended
| September 30, 2022 |  | September 30, 2021 |  | September 30, 2022 |  | September 30, 2021
Product Warranty and Related Liabilities |  |  |  |  |  |  |
Warranty balance at beginning of period | $ | 8,969 |  |  | $ | 9,180 |  |  | $ | 9,774 |  |  | $ | 8,242 |
Warranties issued and assumed in period – recall campaigns | 168 |  |  | 1,237 |  |  | 490 |  |  | 2,686 |
Warranties issued and assumed in period – product warranty | 516 |  |  | 345 |  |  | 1,426 |  |  | 1,250 |
Payments | (1,001) |  |  | (756) |  |  | (3,090) |  |  | (2,275) |
Adjustments to pre-existing warranties | 78 |  |  | 86 |  |  | 150 |  |  | 178 |
Effect of foreign currency and other | (49) |  |  | (28) |  |  | (68) |  |  | (17) |
Warranty balance at end of period | 8,682 |  |  | 10,064 |  |  | 8,682 |  |  | 10,064 |
Less: Supplier recoveries balance at end of period(a) | 1,189 |  |  | 2,062 |  |  | 1,189 |  |  | 2,062 |
Warranty balance, net of supplier recoveries at end of period | $ | 7,493 |  |  | $ | 8,002 |  |  | $ | 7,493 |  |  | $ | 8,002 |
__________ (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, 2022 |  | September 30, 2021 |  | September 30, 2022 |  | September 30, 2021 |
Product Warranty Expense, Net of Recoveries |  |  |  |  |  |  |  |
Warranties issued and assumed in period | $ | 685 |  |  | $ | 1,582 |  |  | $ | 1,916 |  |  | $ | 3,936 |  |
Supplier recoveries accrued in period | (57) |  |  | (1,938) |  |  | (196) |  |  | (2,098) |  |
Adjustments and other | 29 |  |  | 58 |  |  | 82 |  |  | 161 |  |
Warranty expense, net of supplier recoveries | $ | 657 |  |  | $ | (298) |  |  | $ | 1,802 |  |  | $ | 1,999 |  |

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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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Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration