UnitedHealth Group is a health care company. Co. has four reportable segments across its two business platforms, UnitedHealthcare and Optum: UnitedHealthcare, which provides health care benefits to an array of customers and markets through its UnitedHealthcare Employer & Individual, UnitedHealthcare Medicare & Retirement, UnitedHealthcare Community & State and UnitedHealthcare Global; OptumHealth, which serves the physical, emotional and health-related financial needs of individuals; OptumInsight, which provides services, technology and health care knowledge to main participants in the health care industry; and OptumRx, which provides pharmacy care services and programs.