Boeing is one of the world's leading aerospace companies that designs, manufactures, and services commercial aircraft, defense systems, and space exploration products through three main business divisions. The Commercial Airplanes segment produces jetliners for global airlines, the Defense, Space & Security segment develops military aircraft, weapons systems, satellites, and strategic defense technologies for government customers, and the Global Services segment provides maintenance, logistics, spare parts, training, and technical support to both commercial and defense clients worldwide. The company generates revenue through aircraft sales, long-term defense contracts, and aftermarket services, supported by extensive intellectual property and a global workforce.