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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2013
Inventory Disclosure [Abstract] |
Schedule of Inventory Components |
December 31, |  | 2013 |  |  | 2012 |
Finished goods |  | $ | 578 |  |  | $ | 542 |
Work-in-process |  |  | 828 |  |  |  | 866 |
Bauxite and alumina |  |  | 581 |  |  |  | 618 |
Purchased raw materials |  |  | 474 |  |  |  | 536 |
Operating supplies |  |  | 244 |  |  |  | 263 |
|  | $ | 2,705 |  |  | $ | 2,825 |

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