Aflac Incorporated is a business holding company. The Company is involved in supplemental health and life insurance, which is marketed and administered through its subsidiary, American Family Life Assurance Company of Columbus (Aflac). The Company's insurance business consists of two segments: Aflac Japan and Aflac U.S. The Company designs the United States insurance products to provide supplemental coverage for people having medical or primary insurance coverage. Aflac U.S. offers accident coverage on both an individual and group basis. The Company offers cancer plans, critical illness plans, and critical care and recovery plans. The Company designs the United States insurance products to provide supplemental coverage for people having medical or primary insurance coverage. Aflac U.S. offers accident coverage on both an individual and group basis. The Company offers cancer plans, critical illness plans, and critical care and recovery plans.