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Revenue - Disaggregation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | $ 171,606 | $ 157,658 | $ 143,975
Leased vehicle income | 7,297 | 7,266 | 7,811
Finance charge income | 7,636 | 6,187 | 4,519
Other income | 903 | 732 | 431
GM Financial net sales and revenue | 15,836 | 14,184 | 12,760
Net sales and revenue | 187,442 | 171,842 | 156,735
Operating Segments | Cruise |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 257 | 102 | 102
Net sales and revenue | 257 | 102 | 102
Operating Segments | GM Financial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Leased vehicle income | 7,297 | 7,266 | 7,811
Finance charge income | 7,669 | 6,204 | 4,521
Other income | 910 | 754 | 435
GM Financial net sales and revenue | 15,875 | 14,225 | 12,766
Net sales and revenue | 15,875 | 14,225 | 12,766
Eliminations/ Reclassifications |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | (256) | (110) | (101)
Leased vehicle income | 0 | 0 | 0
Finance charge income | (33) | (18) | (2)
Other income | (7) | (23) | (4)
GM Financial net sales and revenue | (40) | (41) | (6)
Net sales and revenue | (296) | (151) | (107)
Automotive |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 171,606 | 157,658 | 143,975
Automotive | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 171,605 | 157,667 | 143,974
Net sales and revenue | 171,605 | 157,667 | 143,974
Automotive | Operating Segments | GMNA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 157,509 | 141,445 | 128,378
Net sales and revenue | 157,509 | 141,445 | 128,378
Automotive | Operating Segments | GMI |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 13,890 | 15,949 | 15,420
Net sales and revenue | 13,890 | 15,949 | 15,420
Automotive | Corporate |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 206 | 273 | 177
Net sales and revenue | 206 | 273 | 177
Automotive | Eliminations/ Reclassifications |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales and revenue | 0 | 0 | 0
Vehicle, parts and accessories |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 165,170 | 151,510 | 138,692
Vehicle, parts and accessories | Eliminations/ Reclassifications |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | (1) | (10) | 0
Vehicle, parts and accessories | Automotive | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 165,171 | 151,520 | 138,692
Vehicle, parts and accessories | Automotive | Operating Segments | GMNA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 152,306 | 136,983 | 124,657
Vehicle, parts and accessories | Automotive | Operating Segments | GMI |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 12,775 | 14,424 | 13,993
Vehicle, parts and accessories | Automotive | Corporate |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 90 | 113 | 42
Used vehicles |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 1,290 | 991 | 516
Used vehicles | Eliminations/ Reclassifications |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 0 | 0 | 0
Used vehicles | Automotive | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 1,290 | 991 | 516
Used vehicles | Automotive | Operating Segments | GMNA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 1,259 | 954 | 483
Used vehicles | Automotive | Operating Segments | GMI |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 31 | 37 | 33
Used vehicles | Automotive | Corporate |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 0 | 0 | 0
Services and other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 5,147 | 5,157 | 4,766
Services and other | Operating Segments | Cruise |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 257 | 102 | 102
Services and other | Eliminations/ Reclassifications |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | (255) | (100) | (101)
Services and other | Automotive | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 5,145 | 5,155 | 4,765
Services and other | Automotive | Operating Segments | GMNA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 3,944 | 3,508 | 3,238
Services and other | Automotive | Operating Segments | GMI |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | 1,084 | 1,487 | 1,393
Services and other | Automotive | Corporate |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Automotive net sales and revenue | $ 116 | $ 160 | $ 134

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