Rendering

Component: (Network and Table)
Network
1086 - Disclosure - Other Noncurrent Assets - Schedule of Other Noncurrent Assets (Detail)
(http://www.alcoa.com/taxonomy/role/DisclosureOtherNoncurrentAssetsScheduleOfOtherNoncurrentAssets)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000004281 (http://www.sec.gov/CIK)
Goodwill and Intangible Assets Disclosure [Abstract]Period [Axis]
2016-12-31
2015-12-31
Goodwill and Intangible Assets Disclosure [Abstract]
 
 
Intangibles, net
988,000,000  
1,104,000,000  
Investments
102,000,000  
193,000,000  
Cash surrender value of life insurance
14,000,000  
492,000,000  
Other
141,000,000  
155,000,000  
Other assets, noncurrent, total
1,245,000,000  
 
1,944,000,000