The Boeing Company is a leading aerospace and defense manufacturer operating across three core segments: Commercial Airplanes; Defense, Space & Security; and Global Services. Its Commercial Airplanes division competes with Airbus in producing aircraft designed to carry more than 130 passengers. In Defense, Space & Security, Boeing competes with contractors such as Lockheed Martin and Northrop Grumman in the development of military aircraft, satellites, and weapons systems. Its Global Services segment provides aftermarket support and related services to airlines.