Boeing is an aerospace company that manufactures commercial jetliners, defense, space, and security systems and provides aftermarket support services. It operates in four segments: Commercial Airplanes; Defense, Space & Security; Boeing Global Services; and Boeing Capital. The Commercial Airplanes segment manufactures 737, 747, 767, 777, and 787 families of commercial jetliners. The Defense, Space & Security segment provides solutions for the design, production, modification, service, and support of commercial derivatives, military rotorcraft, satellites, human space exploration, and autonomous systems. The Boeing Global Services segment delivers engineering, digital analytics, supply chain, and training support service solutions for commercial, defense, and space customers. The Boeing Capital segment supports the company's core businesses by providing financing solutions.