Life, death, health, or injury -- Aetna's got an insurance policy to cover it. The company, one of the largest health insurers in the US, also offers life and disability insurance, as well as retirement savings products. Its health care division offers HMO, PPO, point of service (POS), health savings account (HSA), and traditional indemnity coverage, along with dental, vision, behavioral health, and Medicare and Medicaid plans, to groups and individuals. The health care segment covers some 24 million medical members. Aetna's group insurance segment sells life and disability insurance nationwide, and its large case pensions segment offers pensions, annuities, and other retirement savings products.