Other Noncurrent Assets	6 Months Ended
Jun. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Noncurrent Assets	H. Other Noncurrent Assets – In the first quarter of 2016, Alcoa received $234 in proceeds from the redemption of certain company-owned life insurance policies. In the second quarter of 2016, Alcoa liquidated additional company-owned life insurance policies for $223 in cash. Both of these amounts were included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. As the cash received was equivalent to the cash surrender value of these policies, no gain or loss was recognized on the sales of these policies. As of June 30, 2016 and December 31, 2015, the cash surrender value of life insurance policies was $26 and $492, respectively, which was included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.

Other Noncurrent Assets

6 Months Ended

Jun. 30, 2016

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

H. Other Noncurrent Assets – In the first quarter of 2016, Alcoa received $234 in proceeds from the redemption of certain company-owned life insurance policies. In the second quarter of 2016, Alcoa liquidated additional company-owned life insurance policies for $223 in cash. Both of these amounts were included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. As the cash received was equivalent to the cash surrender value of these policies, no gain or loss was recognized on the sales of these policies. As of June 30, 2016 and December 31, 2015, the cash surrender value of life insurance policies was $26 and $492, respectively, which was included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.