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Other Noncurrent Liabilities and Deferred Credits | 12 Months Ended
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Dec. 31, 2012
Other Noncurrent Liabilities and Deferred Credits | L. Other Noncurrent Liabilities and Deferred Credits
December 31, |  | 2012 |  |  | 2011 |
Fair value of derivative contracts (X) |  | $ | 606 |  |  | $ | 624 |
Asset retirement obligations (C) |  |  | 535 |  |  |  | 503 |
Environmental remediation (N) |  |  | 458 |  |  |  | 289 |
Deferred income taxes (T) |  |  | 460 |  |  |  | 395 |
Deferred credit related to derivative contract (X) |  |  | 330 |  |  |  | - |
Accrued compensation and retirement costs |  |  | 322 |  |  |  | 304 |
Deferred alumina sales revenue |  |  | 108 |  |  |  | 116 |
Other |  |  | 259 |  |  |  | 197 |
|  | $ | 3,078 |  |  | $ | 2,428 |

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
Name: | us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureNoncurrentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration