DESCRIPTION OF THE PLAN - Schedule of Parties-in-Interest Transactions (Details) - EBP 004 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investments, at fair value	$ 1,206,092,188	$ 1,047,115,779
Notes receivable from participants	19,074,539	17,945,832
Fidelity Balanced Fund
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investments, at fair value	125,941,839	112,045,004
Fidelity Total Bond Fund
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investments, at fair value	14,762,186	12,749,483
Fidelity U.S. Bond Index Fund
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investments, at fair value	6,500,502	5,405,858
Fidelity Stock Selector Small Cap Fund
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investments, at fair value	9,590,617	8,075,604
Aflac Incorporated Common Stock
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investments, at fair value	$ 192,410,829	$ 194,533,469

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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+ Details