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Segment Reporting (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | $ 36,984 | $ 37,383 | $ 74,250 | $ 70,399 |
Earnings (loss) before automotive interest and taxes-adjusted | 3,682 | 3,846 | 7,236 | 6,588 |
Adjustments | (654) | (115) | (654) | (175) |
Net (income) loss attributable to noncontrolling interests | 3 | (16) | 12 | (38) |
Income before income taxes | 2,967 | 3,621 | 6,440 | 6,201 |
Income tax expense | (534) | (877) | (1,321) | (1,534) |
Income from continuing operations | 2,433 | 2,744 | 5,119 | 4,667 |
Income (loss) from discontinued operations, net of tax (Note 2) | (770) | 106 | (839) | 114 |
Net income attributable to common stockholders | 1,660 | 2,866 | 4,268 | 4,819 |
Equity in net assets of nonconsolidated affiliates | 8,248 | 8,198 | 8,248 | 8,198 | $ 8,996
Total assets | 240,300 | 210,449 | 240,300 | 210,449 | $ 221,690
Depreciation and amortization | 2,961 | 2,371 | 5,683 | 4,487 |
Impairment charges | 233 | 61 | 254 | 104 |
Equity income | 530 | 660 | 1,085 | 1,220 |
Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Automotive interest income | 68 | 50 | 125 | 94 |
Automotive interest expense | (132) | (144) | (279) | (268) |
GMIO [Member] | Separation Programs In South Africa And India [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Pre-tax restructuring costs | 460 |  | 460 |  |
GMSA [Member] | Separation Programs In Venezuela [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Deconsolidation loss | 80 |  | 80 |  |
Group [Member] | Operating Segments [Member] | Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | 34,001 | 35,246 | 68,651 | 66,332 |
Earnings (loss) before automotive interest and taxes-adjusted | 3,328 | 3,632 | 6,654 | 6,181 |
Adjustments | (654) | (115) | (654) | (175) |
Equity in net assets of nonconsolidated affiliates | 7,192 | 7,319 | 7,192 | 7,319 |
Total assets | 138,194 | 134,476 | 138,194 | 134,476 |
Depreciation and amortization | 1,375 | 1,254 | 2,669 | 2,446 |
Impairment charges | 233 | 61 | 254 | 104 |
Equity income | 488 | 622 | 997 | 1,146 |
Group [Member] | Operating Segments [Member] | GMNA [Member] | Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | 28,437 | 30,222 | 57,775 | 56,730 |
Earnings (loss) before automotive interest and taxes-adjusted | 3,475 | 3,745 | 6,946 | 6,129 |
Adjustments | 0 | 0 | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 79 | 73 | 79 | 73 |
Total assets | 109,312 | 98,173 | 109,312 | 98,173 |
Depreciation and amortization | 1,187 | 1,073 | 2,289 | 2,097 |
Impairment charges | 34 | 30 | 49 | 41 |
Equity income | 1 | 153 | 6 | 159 |
Group [Member] | Operating Segments [Member] | GMIO [Member] | Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | 3,215 | 3,342 | 6,393 | 6,547 |
Earnings (loss) before automotive interest and taxes-adjusted | 340 | 190 | 637 | 624 |
Adjustments | (460) | 0 | (460) | 0 |
Equity in net assets of nonconsolidated affiliates | 7,112 | 7,244 | 7,112 | 7,244 |
Total assets | 20,436 | 21,562 | 20,436 | 21,562 |
Depreciation and amortization | 108 | 106 | 226 | 214 |
Impairment charges | 196 | 31 | 197 | 63 |
Equity income | 487 | 469 | 991 | 987 |
Group [Member] | Operating Segments [Member] | GMSA [Member] | Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | 2,297 | 1,639 | 4,257 | 2,982 |
Earnings (loss) before automotive interest and taxes-adjusted | (23) | (118) | (142) | (182) |
Adjustments | (80) | 0 | (80) | 0 |
Equity in net assets of nonconsolidated affiliates | 1 | 2 | 1 | 2 |
Total assets | 7,141 | 7,676 | 7,141 | 7,676 |
Depreciation and amortization | 70 | 70 | 143 | 127 |
Impairment charges | 3 | 0 | 3 | 0 |
Equity income | 0 | 0 | 0 | 0 |
Group [Member] | Operating Segments [Member] | GM Financial [Member] | GM Financial [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | 2,990 | 2,138 | 5,738 | 4,069 |
Earnings (loss) before automotive interest and taxes-adjusted | 357 | 214 | 585 | 407 |
Adjustments | 0 | 0 | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 1,056 | 879 | 1,056 | 879 |
Total assets | 103,588 | 77,724 | 103,588 | 77,724 |
Depreciation and amortization | 1,586 | 1,117 | 3,014 | 2,041 |
Impairment charges | 0 | 0 | 0 | 0 |
Equity income | 42 | 38 | 88 | 74 |
Group [Member] | Corporate [Member] | Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | 52 | 43 | 226 | 73 |
Earnings (loss) before automotive interest and taxes-adjusted | (464) | (185) | (787) | (390) |
Adjustments | (114) | (115) | (114) | (175) |
Equity in net assets of nonconsolidated affiliates | 0 | 0 | 0 | 0 |
Total assets | 41,890 | 34,928 | 41,890 | 34,928 |
Depreciation and amortization | 10 | 5 | 12 | 10 |
Impairment charges | 0 | 0 | 5 | 0 |
Equity income | 0 | 0 | 0 | 0 |
Group [Member] | Corporate [Member] | Automotive [Member] | Ignition Switch Recall Litigations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Charges for legal related matters | 114 | 115 | 114 | 175 |
Group [Member] | Eliminations [Member] | Automotive [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Equity in net assets of nonconsolidated affiliates | 0 | 0 | 0 | 0 |
Total assets | (40,585) | (27,863) | (40,585) | (27,863) |
Depreciation and amortization | 0 | 0 | (1) | (2) |
Impairment charges | 0 | 0 | 0 | 0 |
Equity income | 0 | 0 | 0 | 0 |
Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales and revenue | (7) | (1) | (139) | (2) |
Earnings (loss) before automotive interest and taxes-adjusted | (3) | 0 | (3) | 0 |
Adjustments | 0 | 0 | 0 | 0 |
Equity in net assets of nonconsolidated affiliates | 0 | 0 | 0 | 0 |
Total assets | (1,482) | (1,751) | (1,482) | (1,751) |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Impairment charges | 0 | 0 | 0 | 0 |
Equity income | $ 0 | $ 0 | $ 0 | $ 0 |

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