"Will I stay a Rossonero for life? It depends on President Silvio Berlusconi and if he says he wants to keep me forever, then I believe him," Kaka told Sky Italia television.
"This success helped me a great deal. It's all well and good to be a talented player, but with silverware everyone has to acknowledge I am a winner. In five years here I have won everything.
"I am working to do my best now and in the future. If the Ballon d'Or and FIFA World Player award arrive, then it will only depend on what I do with Milan. Up until now we've done brilliantly well. Now my next target is the World Club Cup - it has extra special meaning for us Brazilians."
On the arrival of Alexandre Pato, Kaka added: "He is a little different to me in the way he plays, as he is an out and out striker whereas I am a Trequartista.
"He is a great player and comes from a good family environment. I think he could become a true champion."