Lincoln National Corporation, doing business as Lincoln Financial Group, is a Fortune 250 financial services holding company that operates multiple insurance and investment management businesses. The company's operations are divided into four core segments: Annuities, Life Insurance, Group Protection, and Retirement Plan Services. The Annuities segment offers variable, fixed, and registered index-linked annuities, providing tax-deferred investment growth and lifetime income opportunities. The Life Insurance segment focuses on wealth creation and protection through term, universal, indexed universal, and variable universal life insurance products, as well as linked-benefit products for long-term care. The Group Protection segment delivers non-medical group benefits, including disability, life, dental, and vision coverage to employers. The Retirement Plan Services segment provides employer-sponsored retirement plans and services. Revenue is primarily generated through premium payments, cost of insurance assessments, asset-based fees, and investment income from its substantial fixed-income portfolio. Operating primarily in the United States, Lincoln National distributes its products through a vast network of independent financial advisors, brokers, planners, and third-party administrators.