Raytheon Technologies Corp, formerly United Technologies Corporation, is engaged in providing technology products and services to the building systems and aerospace industries. The Company operates through segments such as Pratt & Whitney and Collins Aerospace Systems. The Pratt & Whitney segment supplies aircraft engines for the commercial, military, business jet and general aviation markets. Pratt & Whitney segment provides fleet management services and aftermarket maintenance, repair and overhaul services. The Collins Aerospace Systems segment provides aerospace products and aftermarket service solutions for aircraft manufacturers, airlines, regional, business and general aviation markets, military, space and undersea operations.