Berkshire Hathaway Inc. is a holding company owning subsidiaries engaged in various business activities. The Company conducts insurance businesses on both a primary basis and a reinsurance basis, a freight rail transportation business and a group of utility and energy generation and distribution businesses. Its segments include GEICO, General Re Corporation (General Re), Berkshire Hathaway Reinsurance Group (BHRG), Berkshire Hathaway Primary Group, Burlington Northern Santa Fe, LLC (BNSF), Berkshire Hathaway Energy, Manufacturing, McLane Company, Service and retailing, and Finance and financial products. Its insurance and reinsurance business activities are conducted through various domestic and foreign-based insurance entities. Its insurance businesses provide insurance and reinsurance of property and casualty risks, and also reinsure life, accident and health risks across the world.