This is actually true. We have received the vast majority of TARP funds that were injected directly into banks. This money was returned with approximately an 8% ROI. (Meanwhile, many who held the bank stocks privately made 30-100% in the stock market this year. Still, the 8% beats inflation and isn't an awful return on investment.)
However, AIG is an insurer which still owes $80billion + with the possibility of up to $160billion if the markets were to absolutely collapse again.
Furthermore, we've pumped 1.3trillion into the mortgage backed security market over the past year.