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Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Cash Paid for Interest and Income Taxes | Cash paid for interest and income taxes was as follows:
|  | 2012 |  |  | 2011 |  |  | 2010 |
Interest, net of amount capitalized |  | $ | 454 |  |  | $ | 491 |  |  | $ | 452 |
Income taxes, net of amount refunded |  |  | 223 |  |  |  | 382 |  |  |  | (67 | )
Schedule of Cash Paid for Acquisitions | The details related to cash paid for acquisitions were as follows:
|  | 2012 |  |  | 2011 |  |  | 2010 |
Assets acquired |  | $ | - |  |  | $ | 253 |  |  | $ | 87 |
Liabilities assumed |  |  | - |  |  |  | (12 | ) |  |  | (15 | )
Noncontrolling interests acquired |  |  | - |  |  |  | - |  |  |  | 4 |
Redemption of convertible securities of subsidiary |  |  | - |  |  |  | - |  |  |  | 40 |
Reduction in Alcoa shareholders’ equity |  |  | - |  |  |  | - |  |  |  | 22 |
Cash paid |  |  | - |  |  |  | 241 |  |  |  | 138 |
Less: cash acquired |  |  | - |  |  |  | 1 |  |  |  | - |
Net cash paid |  | $ | - |  |  | $ | 240 |  |  | $ | 138 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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