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Supplementary Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total net sales and revenue | $ 30,826 | $ 35,473 | $ 36,060 | $ 34,878 | $ 38,399 | $ 35,791 | $ 36,760 | $ 36,099 |  | $ 137,237 | $ 147,049 | $ 145,588
Income from continuing operations | (192) | 2,311 | 2,403 | 2,145 | 2,069 | 2,530 | 2,366 | 1,110 |  | 6,667 | 8,075 | 330
Loss from discontinued operations, net of tax |  |  |  |  | 0 | 0 | 0 | 70 |  | 0 | 70 | 4,212
Net income attributable to stockholders | $ (194) | $ 2,351 | $ 2,418 | $ 2,157 | $ 2,044 | $ 2,534 | $ 2,390 | $ 1,046 |  | $ 6,732 | $ 8,014 | $ (3,864)
Basic earnings (loss) per common share – continuing operations (in dollars per share) | $ (0.16) | $ 1.62 | $ 1.68 | $ 1.50 | $ 1.42 | $ 1.77 | $ 1.68 | $ 0.78 |  | $ 4.62 | $ 5.66 | $ 0.23
Basic loss per common share – discontinued operations (in dollars per share) |  |  |  |  | 0 | 0 | 0 | 0.05 |  | 0 | 0.05 | 2.88
Diluted earnings (loss) per common share – continuing operations (in dollars per share) | $ (0.16) | $ 1.60 | $ 1.66 | $ 1.48 | 1.40 | 1.75 | 1.66 | 0.77 |  | 4.57 | 5.58 | 0.22
Diluted loss per common share – discontinued operations (in dollars per share) |  |  |  |  | $ 0 | $ 0 | $ 0 | $ 0.05 |  | $ 0 | $ 0.05 | $ 2.82
Non-recurring tax benefit |  |  |  |  |  |  |  |  |  | $ 122 | $ 134 | $ (7,194)
FAW-GM | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss on sale of discontinued operations before taxes | $ 164 |  |  |  |  |  |  |  |  | 164 |  |
Automotive |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Automotive and other gross margin | 1,273 | $ 3,643 | $ 4,098 | $ 3,032 | $ 2,935 | $ 3,743 | $ 3,204 | $ 2,507 |  |  |  |
Facility closing | Korea |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges and other charges |  |  |  |  |  |  |  |  | $ 1,100 |  |  |
Ignition Switch Recall Litigations |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ignition switch related legal matters |  |  |  |  |  | $ 440 |  |  |  |  |  |
Transformation Activities |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges and other charges | $ 267 | 390 | 361 | 790 | 1,300 |  |  |  |  |  |  |
Foreign Tax Authority |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Non-recurring tax benefit |  |  |  |  | $ 1,000 |  |  |  |  |  |  |
GMI | GM Brazil Indirect Tax Claim | Brazil |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Estimated potential recovery from taxing authority |  | $ 123 | $ 380 | $ 857 |  |  |  |  |  | 1,400 |  |
GMI | Transformation Activities |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges and other charges |  |  |  |  |  |  |  |  |  | $ 115 |  |

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