Organization and Operations	12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Operations	Organization and Operations Centene Corporation, or the Company, is a leading healthcare enterprise, committed to helping people live healthier lives, with an established expertise in lower-income and medically complex populations. The Company provides access to high-quality healthcare, innovative programs, and a wide range of health solutions that help families and individuals get well, stay well, and be well. During 2022, the Company operated in two segments: Managed Care and Specialty Services. The Managed Care segment provided health plan coverage to individuals through government subsidized programs, including Medicaid, the Children's Health Insurance Program (CHIP), Long-Term Services and Supports (LTSS), Foster Care, Medicare-Medicaid Plans (MMP), which cover beneficiaries who are dually eligible for Medicaid and Medicare, the Supplemental Security Income Program, also known as the Aged, Blind, or Disabled Program (ABD), Medicare (including Medicare Prescription Drug Plans), and the Health Insurance Marketplace. The Company also offered a variety of individual, small group, and large group commercial healthcare products, both to employers and directly to members in the Managed Care segment. The Specialty Services segment consisted of the Company's specialty companies offering auxiliary healthcare services and products to state programs, correctional facilities, healthcare organizations, employer groups, and other commercial organizations, as well as to the Company's own subsidiaries. The Specialty Services segment also included the government contracts business, including the Company's government-sponsored Managed Care Support Contract with the U.S. Department of Defense (DoD) under the TRICARE program and other healthcare related government contracts.

Organization and Operations

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Operations Centene Corporation, or the Company, is a leading healthcare enterprise, committed to helping people live healthier lives, with an established expertise in lower-income and medically complex populations. The Company provides access to high-quality healthcare, innovative programs, and a wide range of health solutions that help families and individuals get well, stay well, and be well. During 2022, the Company operated in two segments: Managed Care and Specialty Services. The Managed Care segment provided health plan coverage to individuals through government subsidized programs, including Medicaid, the Children's Health Insurance Program (CHIP), Long-Term Services and Supports (LTSS), Foster Care, Medicare-Medicaid Plans (MMP), which cover beneficiaries who are dually eligible for Medicaid and Medicare, the Supplemental Security Income Program, also known as the Aged, Blind, or Disabled Program (ABD), Medicare (including Medicare Prescription Drug Plans), and the Health Insurance Marketplace. The Company also offered a variety of individual, small group, and large group commercial healthcare products, both to employers and directly to members in the Managed Care segment. The Specialty Services segment consisted of the Company's specialty companies offering auxiliary healthcare services and products to state programs, correctional facilities, healthcare organizations, employer groups, and other commercial organizations, as well as to the Company's own subsidiaries. The Specialty Services segment also included the government contracts business, including the Company's government-sponsored Managed Care Support Contract with the U.S. Department of Defense (DoD) under the TRICARE program and other healthcare related government contracts.