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Revenue - Major Source (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | $ 39,212 | $ 36,646
Leased vehicle income | 1,800 | 1,818
Finance charge income | 1,778 | 1,366
Other income | 224 | 155
GM Financial net sales and revenue | 3,802 | 3,339
Net sales and revenue | 43,014 | 39,985
Operating Segments | Cruise |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 25 | 25
Net sales and revenue | 25 | 25
Operating Segments | GM Financial |  |
Disaggregation of Revenue [Line Items] |  |
Leased vehicle income | 1,800 | 1,818
Finance charge income | 1,786 | 1,368
Other income | 225 | 156
GM Financial net sales and revenue | 3,811 | 3,343
Net sales and revenue | 3,811 | 3,343
Eliminations/ Reclassifications |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | (25) | (25)
Leased vehicle income | 0 | 0
Finance charge income | (8) | (3)
Other income | (1) | (1)
GM Financial net sales and revenue | (9) | (4)
Net sales and revenue | (34) | (29)
Automotive |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 39,212 | 36,646
Automotive | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 39,212 | 36,646
Net sales and revenue | 39,212 | 36,646
Automotive | Operating Segments | GMNA |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 36,099 | 32,889
Net sales and revenue | 36,099 | 32,889
Automotive | Operating Segments | GMI |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 3,082 | 3,727
Net sales and revenue | 3,082 | 3,727
Automotive | Corporate |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 32 | 31
Net sales and revenue | 32 | 31
Vehicle, parts and accessories |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 37,663 | 35,227
Vehicle, parts and accessories | Eliminations/ Reclassifications |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 0 | 0
Vehicle, parts and accessories | Automotive | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 37,663 | 35,227
Vehicle, parts and accessories | Automotive | Operating Segments | GMNA |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 34,898 | 31,876
Vehicle, parts and accessories | Automotive | Operating Segments | GMI |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 2,760 | 3,342
Vehicle, parts and accessories | Automotive | Corporate |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 5 | 9
Used vehicles |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 234 | 180
Used vehicles | Eliminations/ Reclassifications |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 0 | 0
Used vehicles | Automotive | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 234 | 180
Used vehicles | Automotive | Operating Segments | GMNA |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 229 | 175
Used vehicles | Automotive | Operating Segments | GMI |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 5 | 5
Used vehicles | Automotive | Corporate |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 0 | 0
Services and other |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 1,316 | 1,239
Services and other | Operating Segments | Cruise |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 25 | 25
Services and other | Eliminations/ Reclassifications |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | (25) | (25)
Services and other | Automotive | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 1,315 | 1,239
Services and other | Automotive | Operating Segments | GMNA |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 972 | 837
Services and other | Automotive | Operating Segments | GMI |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | 316 | 380
Services and other | Automotive | Corporate |  |
Disaggregation of Revenue [Line Items] |  |
Automotive net sales and revenue | $ 27 | $ 22

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