XML 1169 R34.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Quarterly Data | 12 Months Ended
--- | ---
Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Data | Supplemental Financial Information (unaudited) Quarterly Data (in millions, except per-share amounts)
|  | First |  |  | Second |  |  | Third |  |  | Fourth* |  |  | Year |
2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  | $ | 5,833 |  |  | $ | 5,849 |  |  | $ | 5,765 |  |  | $ | 5,585 |  |  | $ | 23,032 |
Net income (loss) attributable to Alcoa common shareholders |  | $ | 149 |  |  | $ | (119 | ) |  | $ | 24 |  |  | $ | (2,339 | ) |  | $ | (2,285 | )
Earnings per share attributable to Alcoa common shareholders**: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.14 |  |  | $ | (0.11 | ) |  | $ | 0.02 |  |  | $ | (2.19 | ) |  | $ | (2.14 | )
Diluted |  | $ | 0.13 |  |  | $ | (0.11 | ) |  | $ | 0.02 |  |  | $ | (2.19 | ) |  | $ | (2.14 | )
2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  | $ | 6,006 |  |  | $ | 5,963 |  |  | $ | 5,833 |  |  | $ | 5,898 |  |  | $ | 23,700 |
Net income (loss) attributable to Alcoa common shareholders |  | $ | 94 |  |  | $ | (2 | ) |  | $ | (143 | ) |  | $ | 242 |  |  | $ | 191 |
Earnings per share attributable to Alcoa common shareholders**: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.09 |  |  | $ | - |  |  | $ | (0.13 | ) |  | $ | 0.23 |  |  | $ | 0.18 |
Diluted |  | $ | 0.09 |  |  | $ | - |  |  | $ | (0.13 | ) |  | $ | 0.21 |  |  | $ | 0.18 |
* | In the fourth quarter of 2013, Alcoa recorded a $1,731 ($1,719 after noncontrolling interest) impairment of goodwill (see Goodwill and Other Intangible Assets in Note A and Note E), a $372 discrete income tax charge for valuation allowances on certain deferred tax assets in Spain and the U.S. (see Note T), and a $288 ($243 after-tax and noncontrolling interest) charge related to a legal matter (see Note C and Government Investigations under Litigation in Note N).
** | Per share amounts are calculated independently for each period presented; therefore, the sum of the quarterly per share amounts may not equal the per share amounts for the year.

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

X
- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=25249566&loc=d3e1280-108306 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
Name: | us-gaap_QuarterlyFinancialInformationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration