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Revenue - Major Source (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | $ 44,060 | $ 41,254 | $ 83,273 | $ 77,900
Leased vehicle income | 1,803 | 1,820 | 3,603 | 3,638
Finance charge income | 1,868 | 1,486 | 3,646 | 2,852
Other income | 237 | 186 | 462 | 341
GM Financial net sales and revenue | 3,908 | 3,493 | 7,710 | 6,832
Net sales and revenue | 47,969 | 44,746 | 90,983 | 84,732
Operating Segments | Cruise |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 25 | 26 | 51 | 51
Net sales and revenue | 25 | 26 | 51 | 51
Operating Segments | GM Financial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Leased vehicle income | 1,803 | 1,820 | 3,603 | 3,638
Finance charge income | 1,876 | 1,490 | 3,662 | 2,859
Other income | 239 | 187 | 465 | 344
GM Financial net sales and revenue | 3,918 | 3,498 | 7,730 | 6,841
Net sales and revenue | 3,918 | 3,498 | 7,730 | 6,841
Eliminations/ Reclassifications |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | (25) | (26) | (50) | (51)
Leased vehicle income | 0 | 0 | 0 | 0
Finance charge income | (8) | (4) | (16) | (6)
Other income | (2) | (1) | (3) | (3)
GM Financial net sales and revenue | (10) | (5) | (19) | (9)
Net sales and revenue | (35) | (31) | (69) | (60)
Automotive |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 44,060 | 41,254 | 83,273 | 77,900
Automotive | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 44,060 | 41,254 | 83,272 | 77,900
Net sales and revenue | 44,060 | 41,254 | 83,272 | 77,900
Automotive | Operating Segments | GMNA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 40,725 | 37,220 | 76,824 | 70,108
Net sales and revenue | 40,725 | 37,220 | 76,824 | 70,108
Automotive | Operating Segments | GMI |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 3,298 | 3,955 | 6,380 | 7,682
Net sales and revenue | 3,298 | 3,955 | 6,380 | 7,682
Automotive | Corporate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 37 | 79 | 68 | 110
Net sales and revenue | 37 | 79 | 68 | 110
Vehicle, parts and accessories |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 42,515 | 39,761 | 80,177 | 74,988
Vehicle, parts and accessories | Eliminations/ Reclassifications |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 0 | 0 | 0 | 0
Vehicle, parts and accessories | Automotive | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 42,515 | 39,761 | 80,177 | 74,988
Vehicle, parts and accessories | Automotive | Operating Segments | GMNA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 39,416 | 36,099 | 74,313 | 67,975
Vehicle, parts and accessories | Automotive | Operating Segments | GMI |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 3,091 | 3,621 | 5,851 | 6,963
Vehicle, parts and accessories | Automotive | Corporate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 8 | 41 | 13 | 50
Used vehicles |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 338 | 262 | 571 | 442
Used vehicles | Eliminations/ Reclassifications |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 0 | 0 | 0 | 0
Used vehicles | Automotive | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 338 | 262 | 571 | 442
Used vehicles | Automotive | Operating Segments | GMNA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 331 | 256 | 559 | 431
Used vehicles | Automotive | Operating Segments | GMI |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 7 | 6 | 12 | 11
Used vehicles | Automotive | Corporate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 0 | 0 | 0 | 0
Services and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 1,208 | 1,231 | 2,524 | 2,470
Services and other | Operating Segments | Cruise |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 25 | 26 | 51 | 51
Services and other | Eliminations/ Reclassifications |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | (25) | (26) | (50) | (51)
Services and other | Automotive | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 1,208 | 1,231 | 2,523 | 2,470
Services and other | Automotive | Operating Segments | GMNA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 979 | 865 | 1,951 | 1,702
Services and other | Automotive | Operating Segments | GMI |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | 200 | 328 | 516 | 708
Services and other | Automotive | Corporate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Automotive net sales and revenue | $ 29 | $ 39 | $ 56 | $ 60

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