Rendering

Component: (Network and Table)
Network
1042 - Disclosure - Inventories (Tables)
(http://www.alcoa.com/taxonomy/role/NotesToFinancialStatementsInventoryDisclosureTextBlockTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000004281 (http://www.sec.gov/CIK)
Inventory Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Inventory Disclosure [Abstract]
 
Schedule of Inventory Components
December 31,    2016      2015  

Finished goods

    $ 625      $ 672  

Work-in-process

      1,144        1,115  

Purchased raw materials

      408        425  

Operating supplies

      76        72  
     $ 2,253      $ 2,284