COMMITMENTS AND CONTINGENT LIABILITIES	12 Months Ended
COMMITMENTS AND CONTINGENT LIABILITIES	Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENT LIABILITIES	COMMITMENTS AND CONTINGENT LIABILITIES The Company is a defendant in various lawsuits and receives various regulatory inquiries considered to be in the normal course of business. Members of the Company's senior legal and financial management teams review litigation and regulatory inquiries on a quarterly and annual basis and the Company updates the related estimates, accruals, and disclosures, if any, based on such reviews. For litigation and regulatory matters where it is probable that a loss has been incurred, and the amount of that loss can be reasonably estimated, the Company establishes accruals for loss contingencies. Where a loss may be reasonably possible but not probable, or is probable but not reasonably estimable, no accrual is recorded. The final results of any litigation or regulatory inquiries cannot be predicted with certainty. Although some of this litigation is pending in states where large punitive damages, bearing little relation to the actual damages sustained by plaintiffs, have been awarded in recent years, the Company believes the outcome of pending litigation will not have a material adverse effect on its financial position, results of operations, or cash flows. Cyber Incident As previously disclosed, the Company identified an incident involving unauthorized access to a limited number of its systems in the U.S. on June 12, 2025. The Company promptly initiated its cybersecurity incident response protocols and believes it contained the unauthorized access within hours. The Company's systems were not affected by ransomware, and the Company remained able to serve its policyholders and underwrite policies, review claims, and otherwise service customers as usual. In December 2025, the Company determined that personal information associated with approximately 22.65 million individuals was involved. The Company has received questions from regulators and has pending disputes related to the June 2025 incident. The Company believes that the potential amount of loss cannot be reasonably estimated at this time. Outsourcing Agreements and Other Commitments The Company has an outsourcing agreement with a technology and consulting corporation that provides for mainframe computer operations, distributed mid-range server computer operations, and related support for Aflac Japan. The agreement has a remaining term of three years with an aggregate remaining cost of ¥33.6 billion ($215 million using the December 31, 2025 foreign exchange rate). The Company has three outsourcing agreements with a management consulting and technology services company. The first agreement provides for application maintenance and development services for Aflac Japan. The first agreement has a remaining term of three years with an aggregate remaining cost of ¥12.7 billion ($81 million using the December 31, 2025 foreign exchange rate). The second agreement provides for policy administrative services for Aflac Japan. The second agreement has a remaining term of three years with an aggregate remaining cost of ¥5.2 billion ($33 million using the December 31, 2025 foreign exchange rate). The third agreement provides for comprehensive project-related support services for Aflac Japan. The third agreement has a remaining term of one year with an aggregate remaining cost of ¥1.3 billion ($8 million using the December 31, 2025 foreign exchange rate). The Company has two outsourcing agreements with information technology and data services companies to provide application maintenance and development services for Aflac Japan. The first agreement has a remaining term of two years with an aggregate remaining cost of ¥7.8 billion ($50 million using the December 31, 2025 foreign exchange rate). The second agreement has a remaining term of two years with an aggregate remaining cost of ¥9.3 billion ($59 million using the December 31, 2025 foreign exchange rate). The Company has an outsourcing agreement with an information technology and data services company to provide cloud hosting services for the Company. The agreement has a remaining term of one year with an aggregate remaining cost of $32 million. The Company has a comprehensive agreement with a cloud-based software company to license software for Aflac Japan. The agreement has a remaining term of four years with an aggregate remaining cost of ¥6.6 billion ($42 million using the December 31, 2025 foreign exchange rate). See Note 3 for details on certain investment commitments. Guaranty Fund Assessments The U.S. insurance industry has a policyholder protection system that is monitored and regulated by state insurance departments. These life and health insurance guaranty associations are state entities (in all 50 states as well as Puerto Rico and the District of Columbia) created to protect policyholders of an insolvent insurance company. All insurance companies (with limited exceptions) licensed to sell life or health insurance in a state must be members of that state’s guaranty association. Under state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business. Guaranty fund assessments for the years ended December 31, 2025, 2024 and 2023 were immaterial.