Citigroup Inc. is a global financial institution that facilitates approximately $5 trillion in daily transaction volume, playing a critical role in supporting the operations of major multinational corporations. The company maintains a strong international presence, serving 90% of Fortune 500 companies through a proprietary network with direct access to more than 270 cash-clearing systems across 94 countries. Following a history marked by operational complexity and fragmentation, Citigroup has taken steps to simplify its structure and now operates through five core segments: Services, Markets, Banking, Wealth, and U.S. Personal Banking.