Citigroup Inc. or Citi is an American multinational investment bank and financial services company based in New York City. The company was formed in 1998 by the merger of Citicorp, the bank holding company for Citibank, and Travelers; Travelers was spun off from the company in 2002. Citigroup is the third-largest banking institution in the United States by assets; alongside JPMorgan Chase, Bank of America, and Wells Fargo, it is one of the Big Four banking institutions of the United States. It is considered a systemically important bank by the Financial Stability Board and is commonly called "too big to fail". It is one of the eight global investment banks in the Bulge Bracket. Citigroup is ranked 36th on the Fortune 500, and was ranked #24 in Forbes Global 2000 in 2023. Citigroup operates with two major divisions: Institutional Clients Group, which offers investment banking and corporate banking services, as well as treasury and trade solutions and securities services such as custodian banking; and Personal Banking and Wealth Management, which includes Citibank, a retail bank, the third-largest issuer of credit cards, as well as its wealth management business. Wikipedia