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Inventories (Tables) | 9 Months Ended
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Sep. 30, 2011
Inventories |
Carrying Value Of Major Inventory Components |
|  | September 30, 2011 |  |  | December 31, 2010 |
Finished goods |  | $ | 592 |  |  | $ | 470 |
Work-in-process |  |  | 1,042 |  |  |  | 814 |
Bauxite and alumina |  |  | 697 |  |  |  | 621 |
Purchased raw materials |  |  | 571 |  |  |  | 401 |
Operating supplies |  |  | 270 |  |  |  | 256 |
|  | $ | 3,172 |  |  | $ | 2,562 |

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