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Other Noncurrent Liabilities And Deferred Credits | 12 Months Ended
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Dec. 31, 2011
Other Noncurrent Liabilities And Deferred Credits [Abstract] |
Other Noncurrent Liabilities And Deferred Credits | L. Other Noncurrent Liabilities and Deferred Credits
December 31, |  | 2011 |  |  | 2010 |
Fair value of derivative contracts (X) |  | $ | 624 |  |  | $ | 703 |
Asset retirement obligations (C) |  |  | 503 |  |  |  | 442 |
Deferred income taxes (T) |  |  | 395 |  |  |  | 388 |
Accrued compensation and retirement costs |  |  | 304 |  |  |  | 314 |
Environmental remediation (N) |  |  | 289 |  |  |  | 302 |
Deferred alumina sales revenue |  |  | 116 |  |  |  | 125 |
Other |  |  | 197 |  |  |  | 302 |
|  | $ | 2,428 |  |  | $ | 2,576 |

X
- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as noncurrent at the end of the reporting period. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration