Hatem Ben Arfa scored his first goal for the club as Unai Emery's men wiped the floor with their French counterparts to win their second piece of silverware on the same day.
Paris Saint-Germain claimed the Trophee des Champions for a fourth season in a row as it destroyed Lyon 4-1 in Austria.
Les Parisiens' comfortable triumph over their French counterparts capped a memorable day for the club, having won the U.S. and Europe International Champions Cup earlier in the day.
PSG raced into a 2-0 lead inside 19 minutes thanks to goals from Javier Pastore and Lucas Moura, before Hatem Ben Arfa bagged his first goal for the club.