This document is the annual report (Form 10-K) filed by American International Group, Inc. (AIG) with the Securities and Exchange Commission for the fiscal year ended December 31, 2006. It provides an overview of AIG's business operations, organizational structure, financial performance, and other required disclosures. AIG operates through four main business segments: General Insurance, Life Insurance & Retirement Services, Financial Services, and Asset Management. In 2006, AIG's consolidated revenues were $113.2 billion and total operating income was $21.7 billion, with the largest contributors being General Insurance and Life Insurance & Retirement Services.