DECO plans to quit Chelsea after this summer's World Cup.
The 32-year-old still has a year-and-a-half left on his contract at Stamford Bridge, but has failed to establish himself under Carlo Ancelotti.
Deco has been restricted to just 10 Premier League appearances this term, and insists his future lies away from west London.
He said: "I want to go back to Brazil.
"I still have a couple of good years of high-level football left in me but I want to be near my kids.
"Ideally, I'd like to go after the World Cup and I've been speaking to Chelsea about it.
"It will all depend on Chelsea – if the club release me or let me go on loan."