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Separation Transaction and Discontinued Operations (Tables) | 12 Months Ended
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Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract] |
Summary of Discontinued Operations in Financial Statements | The results of operations of Alcoa Corporation were presented as discontinued operations in the Statement of Consolidated Operations as summarized below:
| Ten months ended October 31, |  | Year ended December 31,
| 2016 |  | 2015
Sales | $ | 6,752 |  |  | $ | 10,121 |
Cost of goods sold (exclusive of expenses below) | 5,655 |  |  | 7,965 |
Selling, general administrative, and other expenses | 164 |  |  | 214 |
Research and development | 28 |  |  | 69 |
Provision for depreciation, depletion and amortization | 593 |  |  | 772 |
Restructuring and other charges | 102 |  |  | 981 |
Interest expense | 28 |  |  | 25 |
Other (income) expenses, net | (75 | ) |  | 30 |
Income from discontinued operations before income taxes | 257 |  |  | 65 |
Provision for income taxes | 73 |  |  | 106 |
Income (loss) from discontinued operations after income taxes | 184 |  |  | (41 | )
Less: Net income from discontinued operations attributable to noncontrolling interests | 63 |  |  | 124 |
Net income (loss) from discontinued operations | $ | 121 |  |  | $ | (165 | )
Disposal Groups, Including Discontinued Operations, Schedule Of Depreciation, Depletion, And Amortization | The following table presents depreciation, depletion and amortization, restructuring and other charges, and purchases of property, plant and equipment of the discontinued operations related to Alcoa Corporation:
For the year ended December 31, | 2016 | 2015
Depreciation, depletion and amortization | $ | 593 |  | $ | 772 |
Restructuring and other charges | $ | 102 |  | $ | 981 |
Capital expenditures | $ | 298 |  | $ | 391 |

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