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Segment Reporting (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | $ 36,099 | $ 37,266 |
Earnings (loss) before automotive interest and taxes-adjusted | 2,610 | 3,554 |
Adjustments | (942) | 0 |
Net income (loss) attributable to noncontrolling interests | (6) | 9 |
Income before income taxes | 1,576 | 3,473 |
Income tax benefit (expense) | (466) | (787) |
Income from continuing operations | 1,110 | 2,686 |
Loss from discontinued operations, net of tax (Note 19) | (70) | (69) |
Net income attributable to stockholders | 1,046 | 2,608 |
Equity in net assets of nonconsolidated affiliates | 9,883 | 9,416 | $ 9,073
Total assets | 218,726 | 230,793 | $ 212,482
Depreciation and amortization | 3,097 | 2,722 |
Impairment charges | 484 | 21 |
Equity income | 648 | 555 |
Automotive [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Automotive interest income | 64 | 57 |
Automotive interest expense | (150) | (147) |
Group [Member] | Operating Segments [Member] | Automotive [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | 32,715 | 34,650 |
Earnings (loss) before automotive interest and taxes-adjusted | 2,163 | 3,326 |
Adjustments | (942) | 0 |
Equity in net assets of nonconsolidated affiliates | 8,602 | 8,418 |
Total assets | 118,776 | 137,641 |
Depreciation and amortization | 1,274 | 1,294 |
Impairment charges | 484 | 21 |
Equity income | 596 | 509 |
Group [Member] | Operating Segments [Member] | GMNA [Member] | Automotive [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | 27,818 | 29,338 |
Earnings (loss) before automotive interest and taxes-adjusted | 2,233 | 3,471 |
Adjustments | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 77 | 77 |
Total assets | 101,247 | 105,968 |
Depreciation and amortization | 1,109 | 1,102 |
Impairment charges | 25 | 15 |
Equity income | 2 | 5 |
Group [Member] | Operating Segments [Member] | GMI [Member] | Automotive [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | 4,848 | 5,138 |
Earnings (loss) before automotive interest and taxes-adjusted | 189 | 178 |
Adjustments | (942) | 0 |
Equity in net assets of nonconsolidated affiliates | 8,525 | 8,341 |
Total assets | 28,981 | 27,955 |
Depreciation and amortization | 153 | 191 |
Impairment charges | 459 | 1 |
Equity income | 594 | 504 |
Group [Member] | Operating Segments [Member] | GM Financial [Member] | GM Financial [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | 3,411 | 2,748 |
Earnings (loss) before automotive interest and taxes-adjusted | 443 | 228 |
Adjustments | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 1,281 | 998 |
Total assets | 101,210 | 94,684 |
Depreciation and amortization | 1,823 | 1,428 |
Impairment charges | 0 | 0 |
Equity income | 52 | 46 |
Group [Member] | Corporate [Member] | Automotive [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | 49 | 174 |
Earnings (loss) before automotive interest and taxes-adjusted | (259) | (323) |
Adjustments | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 0 | 0 |
Total assets | 26,902 | 39,872 |
Depreciation and amortization | 12 | 2 |
Impairment charges | 0 | 5 |
Equity income | 0 | 0 |
Group [Member] | Eliminations [Member] | Automotive [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Equity in net assets of nonconsolidated affiliates | 0 | 0 |
Total assets | (38,354) | (36,154) |
Depreciation and amortization | 0 | (1) |
Impairment charges | 0 | 0 |
Equity income | 0 | 0 |
Eliminations [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales and revenue | (27) | (132) |
Earnings (loss) before automotive interest and taxes-adjusted | 4 | 0 |
Adjustments | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 0 | 0 |
Total assets | (1,260) | (1,532) |
Depreciation and amortization | 0 | 0 |
Impairment charges | 0 | 0 |
Equity income | $ 0 | $ 0 |

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