A list of recipients is here. The Center for Responsive Politics adds some detail:
In the last 20 years American International Group (AIG) has contributed more than $9 million to federal candidates and parties through PAC and individual contributions. That's enough to rank AIG on OpenSecrets.org's Heavy Hitters list, which profiles the top 100 contributors of all time. Over time, AIG hasn't shown
an especially partisan streak, splitting evenly the $9.3 million it has contributed since 1989. In the last election cycle, though, 68 percent of contributions associated with the company went to Democrats. Two senators who chair committees charged with overseeing AIG and the insurance industry, Sen. Chris Dodd (D-Conn.) and Sen. Max Baucus (D-Mont.), are among the top recipients of AIG contributions. Baucus chairs the Senate Finance Committee and has collected more money from AIG in his congressional career than from any other company--$91,000. And with more than $280,000, AIG has been the fourth largest contributor to Dodd, who chairs the Senate's banking committee. President Obama and his rival in last year's election, Sen. John McCain (R-Ariz.), are also high on the list of top recipients.