Subsequent Events	9 Months Ended
Sep. 30, 2012
Subsequent Events	O. Subsequent Events – Management evaluated all activity of Alcoa and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except for an update to a civil litigation matter (see Note G) and the addition of a new revolving credit agreement with a financial institution, which provides a $140 credit facility that expires in October 2013, the purpose and terms of which are similar to the other revolving credit agreements entered into during 2012 (see Note F).

Subsequent Events

9 Months Ended

Sep. 30, 2012

O. Subsequent Events – Management evaluated all activity of Alcoa and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except for an update to a civil litigation matter (see Note G) and the addition of a new revolving credit agreement with a financial institution, which provides a $140 credit facility that expires in October 2013, the purpose and terms of which are similar to the other revolving credit agreements entered into during 2012 (see Note F).

- Definition

Tabular disclosure of significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.

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