The Brazilian international completed his switch to the San Siro yesterday evening from fellow Serie A side Lazio.
Discussing the reasoning behind his move, the 28-year-old conceded that he was persuaded by the lure of helping Inter to return to winning ways.
"I'm very happy to be here, to be part of Inter," he told Sky Sport Italia. "I expect a challenge and I am ready. [My dream] is to do well, the image I have of Inter a team that has won everything and I hope to help them back to that level."
Inter have not won a trophy since they lifted the Coppa Italia back in 2011.