Bank One Corporation is a financial holding company and a multibank bank holding company that provides retail banking, finance and credit card services in the United States, worldwide commercial banking services, and trust and investment management services. Bank One operates banking offices in Arizona, Colorado, Florida, Illinois, Indiana, Kentucky, Louisiana, Michigan, Ohio, Oklahoma, Texas, Utah, West Virginia and Wisconsin and in certain international markets. Bank One also engages in other businesses related to banking and finance, including credit card and merchant processing, consumer and education finance, real estate-secured lending and servicing, insurance, venture capital, investment and merchant banking, trust, brokerage, investment management, leasing, community development and data processing. These activities are conducted through bank subsidiaries and non-bank subsidiaries.