Alcoa Corporation (NYSE:AA) reported its first-quarter financial results after the bell Wednesday. Here's a look at the details.  The Details: Alcoa reported quarterly losses of 81 cents per share. Quarterly revenue came in at $2.6 billion, beating the $2.56 billion analyst consensus estimate. The company said third-party revenue increased 6% in the Alumina segment due to the higher average realized third-party price for alumina and higher shipments. In the Aluminum segment, third-party revenue decreased by 3% due to the lower average realized third-party ...