Union Pacific Corp. consists of one reportable segment, rail transportation, and the company''s other product lines. The railsegment includes the operations of the corporation''s wholly owned subsidiary, Union Pacific Railroad Company and Union Pacific Railroad Company''s subsidiaries and rail affiliates. The company''s other operations include the trucking product line, as well as the other product lines that include technology, self-insurance activities, corporate holding company operations, and all appropriate consolidating entries.