XML 87 R40.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Goodwill And Other Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2011
Goodwill And Other Intangible Assets [Abstract] |
Changes In The Carrying Amount Of Goodwill |
|  | Alumina |  |  | Primary Metals |  |  | Flat- Rolled Products |  |  | Engineered Products and Solutions |  |  | Corporate* |  |  | Total |
Balance at December 31, 2009: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 17 |  |  | $ | 939 |  |  | $ | 210 |  |  | $ | 2,532 |  |  | $ | 1,384 |  |  | $ | 5,082 |
Accumulated impairment losses |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (28 | ) |  |  | - |  |  |  | (28 | )
|  |  | 17 |  |  |  | 939 |  |  |  | 210 |  |  |  | 2,504 |  |  |  | 1,384 |  |  |  | 5,054 |
Acquisition of businesses |  |  | - |  |  |  | 48 |  |  |  | - |  |  |  | 28 |  |  |  | - |  |  |  | 76 |
Translation |  |  | (5 | ) |  |  | 6 |  |  |  | (3 | ) |  |  | (9 | ) |  |  | 3 |  |  |  | (8 | )
Balance at December 31, 2010: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 12 |  |  |  | 993 |  |  |  | 207 |  |  |  | 2,551 |  |  |  | 1,387 |  |  |  | 5,150 |
Accumulated impairment losses |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (28 | ) |  |  | - |  |  |  | (28 | )
|  |  | 12 |  |  |  | 993 |  |  |  | 207 |  |  |  | 2,523 |  |  |  | 1,387 |  |  |  | 5,122 |
Acquisition of businesses |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 150 |  |  |  | - |  |  |  | 150 |
Translation |  |  | (1 | ) |  |  | (2 | ) |  |  | 1 |  |  |  | (7 | ) |  |  | (12 | ) |  |  | (21 | )
Balance at December 31, 2011: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 11 |  |  |  | 991 |  |  |  | 208 |  |  |  | 2,694 |  |  |  | 1,375 |  |  |  | 5,279 |
Accumulated impairment losses |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (28 | ) |  |  | - |  |  |  | (28 | )
|  | $ | 11 |  |  | $ | 991 |  |  | $ | 208 |  |  | $ | 2,666 |  |  | $ | 1,375 |  |  | $ | 5,251 |
* | As of December 31, 2011, $1,349 of the amount reflected in Corporate is allocated to each of Alcoa's four reportable segments ($163 to Alumina, $850 to Primary Metals, $63 to Flat-Rolled Products, and $273 to Engineered Products and Solutions) included in the table above for purposes of impairment testing (see Note A). This goodwill is reflected in Corporate for segment reporting purposes because it is not included in management's assessment of performance by the four reportable segments.
Other Intangible Assets |
December 31, 2011 |  | Gross carrying amount |  |  | Accumulated amortization |
Computer software |  | $ | 902 |  |  | $ | (595 | )
Patents and licenses |  |  | 148 |  |  |  | (85 | )
Other intangibles |  |  | 72 |  |  |  | (25 | )
Total amortizable intangible assets |  |  | 1,122 |  |  |  | (705 | )
Indefinite-lived trade names, trademarks, and customer relationships |  |  | 77 |  |  |  | - |
Total other intangible assets |  | $ | 1,199 |  |  | $ | (705 | )
December 31, 2010 |  | Gross carrying amount |  |  | Accumulated amortization |
Computer software |  | $ | 936 |  |  | $ | (555 | )
Patents and licenses |  |  | 148 |  |  |  | (80 | )
Other intangibles |  |  | 68 |  |  |  | (28 | )
Total amortizable intangible assets |  |  | 1,152 |  |  |  | (663 | )
Indefinite-lived trade names and trademarks |  |  | 35 |  |  |  | - |
Total other intangible assets |  | $ | 1,187 |  |  | $ | (663 | )

X
- Definition Other Intangible Assets [Text Block] + References No definition available. + Details
Name: | aa_OtherIntangibleAssetsTextBlock
Namespace Prefix: | aa_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13854-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration