Description of Business	9 Months Ended
Description of Business	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Note 1 – Description of Business The Cigna Group, together with its subsidiaries (either individually or collectively referred to as the "Company," "we," "us" or "our"), is a global health company committed to creating a better future for every individual and every community. We relentlessly challenge ourselves to partner and innovate solutions for better health. Powered by our people and our brands, we advance our mission to improve the health and vitality of those we serve. Our subsidiaries offer a differentiated set of pharmacy, medical, behavioral, dental and related products and services. The majority of these products and services are offered through employers and other entities such as governmental and non-governmental organizations, unions and associations. Cigna Healthcare also offers health and dental insurance products to individuals in the United States and select international markets. In addition to these operations, The Cigna Group also has certain run-off operations. A full description of our segments follows: The Evernorth Health Services reportable segment includes the Pharmacy Benefit Services and the Specialty and Care Services operating segments, which partner with health plans, employers, governmental organizations and health care providers to solve challenges in the areas of pharmacy benefits, home delivery pharmacy, specialty pharmacy, specialty distribution, and care delivery and management solutions. Pharmacy Benefit Services drives high-quality, cost-effective pharmacy care through various services such as drug claim adjudication, retail pharmacy network administration, benefit design consultation, drug utilization review, drug formulary management and access to our home delivery pharmacy. Specialty and Care Services provides specialty drugs for the treatment of complex and rare diseases, specialty distribution of pharmaceuticals and medical supplies, as well as clinical programs to help our clients drive better whole-person health outcomes through Care Delivery and Management Solutions. The Company's reporting units remain aligned with its operating segments and Evernorth Health Services' goodwill was allocated on a relative fair value basis during the three months ended March 31, 2024. The Cigna Healthcare reportable segment includes the U.S. Healthcare and International Health operating segments, which provide comprehensive medical and coordinated solutions to clients and customers. U.S. Healthcare provides medical plans and specialty benefits and solutions for insured and self-insured clients, Medicare Advantage, Medicare Supplement and Medicare Stand-Alone Prescription Drug Plans for seniors and individual health insurance plans. International Health provides health care solutions in our international markets, as well as health care benefits for globally mobile individuals and employees of multinational organizations. In January 2024, the Company entered into a definitive agreement to sell the Medicare Advantage, Medicare Stand-Alone Prescription Drug Plans, Medicare and Other Supplemental Benefits and CareAllies businesses within the U.S. Healthcare operating segment to Health Care Service Corporation ("HCSC") for approximately $3.3 billion cash, subject to applicable regulatory approvals and other customary closing conditions, including adjustments to align with the final balance sheet of the divested businesses (the "HCSC transaction"). See Note 5 to the Consolidated Financial Statements for further information. Other Operations comprises the remainder of our business operations, which includes our continuing business (corporate-owned life insurance ("COLI")) and our run-off and other non-strategic businesses. Our run-off businesses include (i) variable annuity reinsurance business that was effectively exited through reinsurance with Berkshire Hathaway Life Insurance Company of Nebraska ("Berkshire") in 2013, (ii) settlement annuity business, and (iii) individual life insurance and annuity and retirement benefits businesses which were sold through reinsurance agreements. Corporate reflects amounts not allocated to operating segments, including net interest expense (defined as interest on corporate financing less net investment income on investments not supporting segment and other operations), certain litigation matters, expense associated with our frozen pension plans, charitable contributions, operating severance, certain overhead and enterprise-wide project costs and eliminations for products and services sold between segments.