Comerica Incorporated is a financial services company. The Company's principal activity is lending to and accepting deposits from businesses and individuals. It operates in three business segments: the Business Bank, the Retail Bank and Wealth Management. In addition, it also operates in the Finance segment. The Business Bank segment offers commercial loans and lines of credit, deposits, cash management, capital market products, international trade finance, letters of credit, foreign exchange management services and loan syndication services. The Retail Bank segment offers deposit accounts, installment loans, credit cards, student loans, home equity lines of credit and residential mortgage loans. The Wealth Management segment offers fiduciary services, private banking, retirement services, investment management and advisory services, investment banking and brokerage services. The Finance segment includes its securities portfolio, and asset and liability management activities.