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Segment Information (Tables) | 6 Months Ended
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Jun. 30, 2012
Schedule Of Operating Results And Assets Of Alcoa's Reportable Segments | I. Segment Information – The operating results of Alcoa’s reportable segments were as follows (differences between segment totals and consolidated totals are in Corporate):
|  | Alumina |  |  | Primary Metals |  |  | Global Rolled Products |  |  | Engineered Products and Solutions |  |  | Total |
Second quarter ended June 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 750 |  |  | $ | 1,804 |  |  | $ | 1,913 |  |  | $ | 1,420 |  |  | $ | 5,887 |
Intersegment sales |  |  | 576 |  |  |  | 782 |  |  |  | 44 |  |  |  | — |  |  |  | 1,402 |
Total sales |  | $ | 1,326 |  |  | $ | 2,586 |  |  | $ | 1,957 |  |  | $ | 1,420 |  |  | $ | 7,289 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income (loss) |  | $ | 1 |  |  | $ | (9 | ) |  | $ | (2 | ) |  | $ | — |  |  | $ | (10 | )
Depreciation, depletion, and amortization |  |  | 114 |  |  |  | 133 |  |  |  | 57 |  |  |  | 39 |  |  |  | 343 |
Income taxes |  |  | (6 | ) |  |  | (19 | ) |  |  | 43 |  |  |  | 77 |  |  |  | 95 |
After-tax operating income (ATOI) |  |  | 23 |  |  |  | (3 | ) |  |  | 95 |  |  |  | 160 |  |  |  | 275 |
Second quarter ended June 30, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 926 |  |  | $ | 2,145 |  |  | $ | 2,085 |  |  | $ | 1,370 |  |  | $ | 6,526 |
Intersegment sales |  |  | 723 |  |  |  | 922 |  |  |  | 62 |  |  |  | — |  |  |  | 1,707 |
Total sales |  | $ | 1,649 |  |  | $ | 3,067 |  |  | $ | 2,147 |  |  | $ | 1,370 |  |  | $ | 8,233 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income (loss) |  | $ | 22 |  |  | $ | (1 | ) |  | $ | — |  |  | $ | — |  |  | $ | 21 |
Depreciation, depletion, and amortization |  |  | 112 |  |  |  | 142 |  |  |  | 60 |  |  |  | 41 |  |  |  | 355 |
Income taxes |  |  | 60 |  |  |  | 55 |  |  |  | 35 |  |  |  | 72 |  |  |  | 222 |
ATOI |  |  | 186 |  |  |  | 201 |  |  |  | 99 |  |  |  | 149 |  |  |  | 635 |
|  | Alumina |  |  | Primary Metals |  |  | Global Rolled Products |  |  | Engineered Products and Solutions |  |  | Total |
Six months ended June 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 1,525 |  |  | $ | 3,748 |  |  | $ | 3,758 |  |  | $ | 2,810 |  |  | $ | 11,841 |
Intersegment sales |  |  | 1,193 |  |  |  | 1,543 |  |  |  | 88 |  |  |  | — |  |  |  | 2,824 |
Total sales |  | $ | 2,718 |  |  | $ | 5,291 |  |  | $ | 3,846 |  |  | $ | 2,810 |  |  | $ | 14,665 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income (loss) |  | $ | 2 |  |  | $ | (11 | ) |  | $ | (3 | ) |  | $ | — |  |  | $ | (12 | )
Depreciation, depletion, and amortization |  |  | 228 |  |  |  | 268 |  |  |  | 114 |  |  |  | 79 |  |  |  | 689 |
Income taxes |  |  | (7 | ) |  |  | (32 | ) |  |  | 92 |  |  |  | 149 |  |  |  | 202 |
ATOI |  |  | 58 |  |  |  | 7 |  |  |  | 191 |  |  |  | 315 |  |  |  | 571 |
Six months ended June 30, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third-party sales |  | $ | 1,736 |  |  | $ | 4,125 |  |  | $ | 3,977 |  |  | $ | 2,617 |  |  | $ | 12,455 |
Intersegment sales |  |  | 1,356 |  |  |  | 1,761 |  |  |  | 131 |  |  |  | — |  |  |  | 3,248 |
Total sales |  | $ | 3,092 |  |  | $ | 5,886 |  |  | $ | 4,108 |  |  | $ | 2,617 |  |  | $ | 15,703 |
Profit and loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income |  | $ | 25 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | 26 |
Depreciation, depletion, and amortization |  |  | 215 |  |  |  | 283 |  |  |  | 118 |  |  |  | 79 |  |  |  | 695 |
Income taxes |  |  | 104 |  |  |  | 108 |  |  |  | 68 |  |  |  | 134 |  |  |  | 414 |
ATOI |  |  | 328 |  |  |  | 403 |  |  |  | 180 |  |  |  | 279 |  |  |  | 1,190 |
Schedule Of Segment Reporting Information To Consolidated Net Income Attributable To Alcoa | The following table reconciles total segment ATOI to consolidated net (loss) income attributable to Alcoa:
|  | Second quarter ended June 30, |  |  | Six months ended June 30, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Total segment ATOI |  | $ | 275 |  |  | $ | 635 |  |  | $ | 571 |  |  | $ | 1,190 |
Unallocated amounts (net of tax): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact of LIFO |  |  | 19 |  |  |  | (27 | ) |  |  | 19 |  |  |  | (51 | )
Interest expense |  |  | (80 | ) |  |  | (106 | ) |  |  | (160 | ) |  |  | (178 | )
Noncontrolling interests |  |  | 17 |  |  |  | (55 | ) |  |  | 12 |  |  |  | (113 | )
Corporate expense |  |  | (69 | ) |  |  | (76 | ) |  |  | (133 | ) |  |  | (143 | )
Restructuring and other charges |  |  | (10 | ) |  |  | (22 | ) |  |  | (17 | ) |  |  | (28 | )
Discontinued operations |  |  | — |  |  |  | (4 | ) |  |  | — |  |  |  | (5 | )
Other |  |  | (154 | ) |  |  | (23 | ) |  |  | (200 | ) |  |  | (42 | )
Consolidated net (loss) income attributable to Alcoa |  | $ | (2 | ) |  | $ | 322 |  |  | $ | 92 |  |  | $ | 630 |

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