Receivables	12 Months Ended
Dec. 31, 2020
Receivables [Abstract]
Receivables	I. Receivables On October 25, 2019, a wholly-owned subsidiary of the Company entered into a $120 three-year revolving credit facility agreement secured by certain customer receivables. Alcoa Corporation guaranteed the performance obligations of the wholly-owned subsidiary under the facility; however no assets (other than the receivables) were pledged as collateral. Fees paid upon closure of the agreement were approximately $1. At December 31, 2019, there were no amounts drawn or outstanding related to this credit facility. On April 20, 2020, the Company amended this agreement converting it to a Receivables Purchase Agreement to sell up to $120 of the receivables previously secured by the credit facility without recourse on a revolving basis. The unsold portion of the specified receivable pool is pledged as collateral to the purchasing bank to secure the sold receivables. During the year ended December 31, 2020, no receivables were sold under this agreement.

Receivables

12 Months Ended

Dec. 31, 2020

I. Receivables

On October 25, 2019, a wholly-owned subsidiary of the Company entered into a $120 three-year revolving credit facility agreement secured by certain customer receivables. Alcoa Corporation guaranteed the performance obligations of the wholly-owned subsidiary under the facility; however no assets (other than the receivables) were pledged as collateral. Fees paid upon closure of the agreement were approximately $1. At December 31, 2019, there were no amounts drawn or outstanding related to this credit facility.

On April 20, 2020, the Company amended this agreement converting it to a Receivables Purchase Agreement to sell up to $120 of the receivables previously secured by the credit facility without recourse on a revolving basis. The unsold portion of the specified receivable pool is pledged as collateral to the purchasing bank to secure the sold receivables. During the year ended December 31, 2020, no receivables were sold under this agreement.