Insider Trading Arrangements	3 Months Ended	12 Months Ended
Dec. 31, 2024 shares	Dec. 31, 2024 shares
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		Insider Trading Arrangements During the fourth quarter of 2024, the following directors or executive officers adopted or terminated a contract, instruction or written plan for the purchase or sale of the Parent Company's securities intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or a non-Rule 10b5-1 trading arrangement as defined in Regulation S-K Item 408(c): •On December 4, 2024, Masatoshi Koide, President and Representative Director of Aflac Japan, adopted a Rule 10b5-1 trading plan that provides for the sale of 50% of performance-based restricted stock shares to be released upon approval of the Company's board of directors and will terminate no later than June 30, 2025. The estimated number of gross shares of Aflac Incorporated common stock to be acquired is 21,805; however, the actual number of shares may vary based on achievement of designated performance metrics. •On December 4, 2024, Joseph L. Moskowitz, a member of the Company's board of directors, adopted a Rule 10b5-1 trading plan that provides for the sale of 4,000 shares of Aflac Incorporated common stock and will terminate no later than November 10, 2025. •On December 5, 2024, Charles D. Lake II, Chairman and Representative Director of Aflac Japan and President of Aflac International, adopted a Rule 10b5-1 trading plan that provides for the sale of 55.95% of performance-based restricted stock shares to be released upon approval of the Company's board of directors and will terminate no later than June 30, 2025. The estimated number of gross shares of Aflac Incorporated common stock to be acquired is 20,614; however, the actual number of shares may vary based on achievement of designated performance metrics.
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Masatoshi Koide [Member]
Trading Arrangements, by Individual
Name	Masatoshi Koide
Title	President and Representative Director of Aflac Japan
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 4, 2024
Expiration Date	June 30, 2025
Aggregate Available	21,805	21,805
Joseph L. Moskowitz [Member]
Trading Arrangements, by Individual
Name	Joseph L. Moskowitz
Title	member of the Company's board of directors
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 4, 2024
Expiration Date	November 10, 2025
Aggregate Available	4,000	4,000
Charles D. Lake II [Member]
Trading Arrangements, by Individual
Name	Charles D. Lake II
Title	Chairman and Representative Director of Aflac Japan and President of Aflac International
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 5, 2024
Expiration Date	June 30, 2025
Aggregate Available	20,614	20,614

Insider Trading Arrangements

3 Months Ended

12 Months Ended

Dec. 31, 2024

Insider Trading Arrangements

During the fourth quarter of 2024, the following directors or executive officers adopted or terminated a contract, instruction or written plan for the purchase or sale of the Parent Company's securities intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or a non-Rule 10b5-1 trading arrangement as defined in Regulation S-K Item 408(c):

•On December 4, 2024, Masatoshi Koide, President and Representative Director of Aflac Japan, adopted a Rule 10b5-1 trading plan that provides for the sale of 50% of performance-based restricted stock shares to be released upon approval of the Company's board of directors and will terminate no later than June 30, 2025. The estimated number of gross shares of Aflac Incorporated common stock to be acquired is 21,805; however, the actual number of shares may vary based on achievement of designated performance metrics.

•On December 4, 2024, Joseph L. Moskowitz, a member of the Company's board of directors, adopted a Rule 10b5-1 trading plan that provides for the sale of 4,000 shares of Aflac Incorporated common stock and will terminate no later than November 10, 2025.

•On December 5, 2024, Charles D. Lake II, Chairman and Representative Director of Aflac Japan and President of Aflac International, adopted a Rule 10b5-1 trading plan that provides for the sale of 55.95% of performance-based restricted stock shares to be released upon approval of the Company's board of directors and will terminate no later than June 30, 2025. The estimated number of gross shares of Aflac Incorporated common stock to be acquired is 20,614; however, the actual number of shares may vary based on achievement of designated performance metrics.

Non-Rule 10b5-1 Arrangement Adopted

false

Rule 10b5-1 Arrangement Terminated

false

Non-Rule 10b5-1 Arrangement Terminated

false

Masatoshi Koide [Member]

Trading Arrangements, by Individual

Name

Masatoshi Koide

Title

President and Representative Director of Aflac Japan