Citigroup provides a wide range of financial services, including consumer banking, corporate and investment banking, securities brokerage, and wealth management. The company operates in over 160 countries, allowing it to serve a diverse clientele that includes individuals, small businesses, large corporations, and government entities. Citigroup's products work by offering various financial solutions such as loans, credit, and investment management, which generate revenue through interest, service fees, and trading activities. What sets Citigroup apart from its competitors is its extensive global network and focus on technological advancements that enhance the banking experience. The company's goal is to create a positive financial and social impact while ensuring growth and profitability, with a strong commitment to sustainability and social responsibility through its investments in environmental, social, and governance initiatives.