The beneficiaries of the government's bailout of American International Group Inc. include at least two dozen U.S. and foreign financial institutions that have been paid roughly $50 billion since the Federal Reserve first extended aid to the insurance giant.

Among those institutions are Goldman Sachs Group Inc. and Germany's Deutsche Bank AG, each of which received roughly $6 billion in payments between mid-September and December 2008, according to a confidential document and people familiar with the matter.

Other...