DEFERRED POLICY ACQUISITION COSTS - Additional Information (Detail)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Policy Acquisition Costs Disclosures [Abstract]
Commissions deferred as a percentage of total acquisition costs	69.00%	67.00%	68.00%

Percentage of Deferred Policy Acquisition Costs Attributable to Commissions Deferred

No definition available.

Name:	afl_PercentageOfDeferredPolicyAcquisitionCostsAttributableToCommissionsDeferred
Namespace Prefix:	afl_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration