RTX is a diversified aerospace and defense industrial company formed from the merger of United Technologies and Raytheon, with roughly equal exposure as a supplier to commercial aerospace manufacturers and to the defense market. The company operates in three segments: Collins Aerospace, a diversified aerospace supplier; Pratt & Whitney, an aircraft engine manufacturer; and Raytheon, a defense prime contractor providing a mix of missiles, missile defense systems, sensors, hardware, and communications technology to the military.