General Electric Co. is a technology and financial services company that develops and manufactures products for the generation, transmission, distribution, control and utilization of electricity. Its products and services include aircraft engines, power generation, water processing, security technology, medical imaging, business and consumer financing, media content and industrial products. The company operates through eight segments: Power, Oil & Gas, Aviation, Healthcare, Transportation, Appliances & Lighting and GE Capital. The Power segment serves power generation, industrial, government and other customers worldwide with products and services related to energy production. The Oil & Gas segment supplies mission critical equipment for the global oil and gas industry, used in applications spanning the entire value chain from drilling and completion through production, liquefied natural gas and pipeline compression, pipeline inspection, and downstream processing in refineries and petrochemical plants. The Aviation segment products and services include jet engines, aerospace systems and equipment, replacement parts and repair and maintenance services for all categories of commercial aircraft; for a wide variety of military aircraft, including fighters, bombers, tankers and helicopters; for marine applications; and for executive and regional aircraft. The Healthcare segment products include diagnostic imaging systems such as magnetic resonance, computed tomography and positron emission Tomography scanners, X-ray, nuclear imaging, digital mammography and molecular imaging technologies.