Aetna, Inc. operates as a diversified health care benefits company primarily in the United States and Canada. The company provides health insurance products and related services, including medical, pharmacy, dental, behavioral health, group life, and disability plans, as well as medical management capabilities and health care management services for Medicaid plans. It operates in three segments: Health Care, Group Insurance, and Large Case Pensions. The Health Care segment provides medical, pharmacy benefits management, dental, and vision plans offered on both an insured basis and an employer-funded basis. Its medical products include point of service, preferred provider organization, health maintenance organization, and indemnity benefit plans, as well as health savings accounts and Aetna HealthFund. This segment also provides specialty products, such as medical management and data analytics services, behavioral health plans, and stop loss insurance, as well as products that provide access to its provider networks. The Group Insurance segment offers life, disability, and long-term care insurance products principally to employers that sponsor its products for the benefit of their employees and their employees’ dependents. The Large Case Pension segment manages various retirement products, including pension and annuity products primarily for tax qualified pension plans. Aetna primarily serves employer groups, individuals, college students, part-time and hourly workers, health plans, governmental units, government-sponsored plans, labor groups, and expatriates. The company was founded in 1982 and is based in Hartford, Connecticut.