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Segment Information (Tables) | 9 Months Ended
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Sep. 30, 2011
Segment Information |
Schedule Of Operating Results Of Reportable Segments |
|  | Alumina |  |  | Primary Metals |  |  | Flat- Rolled Products |  |  | Engineered Products and Solutions |  |  | Total |
Third quarter ended September 30, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 879 |  |  | $ | 2,124 |  |  | $ | 1,974 |  |  | $ | 1,373 |  |  | $ | 6,350 |
Intersegment sales |  |  | 751 |  |  |  | 798 |  |  |  | 48 |  |  |  | — |  |  |  | 1,597 |
Total sales |  | $ | 1,630 |  |  | $ | 2,922 |  |  | $ | 2,022 |  |  | $ | 1,373 |  |  | $ | 7,947 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income (loss) |  | $ | 2 |  |  | $ | (4 | ) |  | $ | — |  |  | $ | — |  |  | $ | (2 | )
Depreciation, depletion, and amortization |  |  | 117 |  |  |  | 137 |  |  |  | 61 |  |  |  | 40 |  |  |  | 355 |
Income taxes |  |  | 42 |  |  |  | 21 |  |  |  | 26 |  |  |  | 67 |  |  |  | 156 |
After-tax operating income (ATOI) |  |  | 154 |  |  |  | 110 |  |  |  | 60 |  |  |  | 138 |  |  |  | 462 |
Third quarter ended September 30, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 717 |  |  | $ | 1,688 |  |  | $ | 1,645 |  |  | $ | 1,173 |  |  | $ | 5,223 |
Intersegment sales |  |  | 506 |  |  |  | 589 |  |  |  | 46 |  |  |  | — |  |  |  | 1,141 |
Total sales |  | $ | 1,223 |  |  | $ | 2,277 |  |  | $ | 1,691 |  |  | $ | 1,173 |  |  | $ | 6,364 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income |  | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | 2 |
Depreciation, depletion, and amortization |  |  | 100 |  |  |  | 142 |  |  |  | 57 |  |  |  | 37 |  |  |  | 336 |
Income taxes |  |  | (22 | ) |  |  | (3 | ) |  |  | 26 |  |  |  | 63 |  |  |  | 64 |
ATOI |  |  | 70 |  |  |  | 78 |  |  |  | 66 |  |  |  | 114 |  |  |  | 328 |
Nine months ended September 30, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 2,615 |  |  | $ | 6,249 |  |  | $ | 5,951 |  |  | $ | 3,990 |  |  | $ | 18,805 |
Intersegment sales |  |  | 2,107 |  |  |  | 2,559 |  |  |  | 179 |  |  |  | — |  |  |  | 4,845 |
Total sales |  | $ | 4,722 |  |  | $ | 8,808 |  |  | $ | 6,130 |  |  | $ | 3,990 |  |  | $ | 23,650 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income (loss) |  | $ | 27 |  |  | $ | (4 | ) |  | $ | — |  |  | $ | 1 |  |  | $ | 24 |
Depreciation, depletion, and amortization |  |  | 332 |  |  |  | 420 |  |  |  | 179 |  |  |  | 119 |  |  |  | 1,050 |
Income taxes |  |  | 146 |  |  |  | 129 |  |  |  | 94 |  |  |  | 201 |  |  |  | 570 |
ATOI |  |  | 482 |  |  |  | 513 |  |  |  | 240 |  |  |  | 417 |  |  |  | 1,652 |
Nine months ended September 30, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 2,056 |  |  | $ | 5,100 |  |  | $ | 4,654 |  |  | $ | 3,369 |  |  | $ | 15,179 |
Intersegment sales |  |  | 1,627 |  |  |  | 1,905 |  |  |  | 132 |  |  |  | — |  |  |  | 3,664 |
Total sales |  | $ | 3,683 |  |  | $ | 7,005 |  |  | $ | 4,786 |  |  | $ | 3,369 |  |  | $ | 18,843 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income |  | $ | 7 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 2 |  |  | $ | 10 |
Depreciation, depletion, and amortization |  |  | 299 |  |  |  | 431 |  |  |  | 173 |  |  |  | 116 |  |  |  | 1,019 |
Income taxes |  |  | 46 |  |  |  | 15 |  |  |  | 72 |  |  |  | 142 |  |  |  | 275 |
ATOI |  |  | 236 |  |  |  | 310 |  |  |  | 167 |  |  |  | 302 |  |  |  | 1,015 |
Schedule Of Reconciliation Of Total Segment ATOI To Consolidated Net Income (Loss) |
|  | Third quarter ended September 30, |  |  | Nine months ended September 30, |
|  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Total segment ATOI |  | $ | 462 |  |  | $ | 328 |  |  | $ | 1,652 |  |  | $ | 1,015 |
Unallocated amounts (net of tax): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact of LIFO |  |  | 2 |  |  |  | (2 | ) |  |  | (49 | ) |  |  | (19 | )
Interest expense |  |  | (81 | ) |  |  | (91 | ) |  |  | (259 | ) |  |  | (245 | )
Noncontrolling interests |  |  | (53 | ) |  |  | (48 | ) |  |  | (166 | ) |  |  | (104 | )
Corporate expense |  |  | (76 | ) |  |  | (71 | ) |  |  | (219 | ) |  |  | (197 | )
Restructuring and other charges |  |  | (7 | ) |  |  | 1 |  |  |  | (35 | ) |  |  | (142 | )
Discontinued operations |  |  | — |  |  |  | — |  |  |  | (5 | ) |  |  | (8 | )
Other |  |  | (75 | ) |  |  | (56 | ) |  |  | (117 | ) |  |  | (304 | )
Consolidated net income (loss) attributable to Alcoa |  | $ | 172 |  |  | $ | 61 |  |  | $ | 802 |  |  | $ | (4 | )
Schedule Of Reconciliation Of Segment Assets |
|  | September 30, 2011 |  |  | December 31, 2010 |
Alumina |  | $ | 9,675 |  |  | $ | 9,967 |
Primary Metals |  |  | 12,222 |  |  |  | 11,947 |
Flat-Rolled Products |  |  | 5,033 |  |  |  | 4,606 |
Engineered Products and Solutions |  |  | 5,951 |  |  |  | 5,434 |
Total segment assets |  | $ | 32,881 |  |  | $ | 31,954 |

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