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Debt - Interest Expense and LT Debt Maturities (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |
Total interest expense | $ 3,868 | $ 3,496 | $ 4,121
2023 | 38,873 |  |
2024 | 21,262 |  |
2025 | 17,937 |  |
2026 | 7,878 |  |
2027 | 8,310 |  |
Thereafter | 21,957 |  |
Total | 116,217 |  |
Automotive |  |  |
Debt Instrument [Line Items] |  |  |
Automotive interest expense | 987 | 950 | 1,098
2023 | 1,961 |  |
2024 | 118 |  |
2025 | 2,597 |  |
2026 | 61 |  |
2027 | 1,805 |  |
Thereafter | 11,827 |  |
Total | 18,369 |  |
GM Financial |  |  |
Debt Instrument [Line Items] |  |  |
Financing interest expense | 2,881 | $ 2,546 | $ 3,023
2023 | 36,912 |  |
2024 | 21,144 |  |
2025 | 15,340 |  |
2026 | 7,817 |  |
2027 | 6,505 |  |
Thereafter | 10,130 |  |
Total | $ 97,847 |  |

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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal after Year Five + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Five + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Four + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Three + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Two + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Repayments of Principal in Next Twelve Months + References No definition available. + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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- Definition Amount of long-term debt and lease obligation, including portion classified as current. + References No definition available. + Details
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