Capital One Financial Corporation is a diversified financial services holding company that operates through credit card lending, consumer banking, auto lending, and payment networks. The company earns revenue primarily through interest income from its lending operations in credit cards and auto loans, along with interchange and network fees from the payment networks it operates—including Discover, Diners Club, and PULSE—as well as various service fees and charges. The company serves consumers through credit cards, savings accounts, and auto loans, while also providing merchant acquiring and processing services and supporting third-party card issuers and network participants globally.