XML 117 R107.htm IDEA: XBRL DOCUMENT
v3.23.3

COMMITMENTS AND CONTINGENT LIABILITIES - Additional Information (Details) - Management Consulting and Technology Services Company Application Maintenance and Development Services - Aflac Japan $ in Millions, ¥ in Billions | 9 Months Ended
--- | ---
Sep. 30, 2023 JPY (¥) | Sep. 30, 2023 USD ($)
Commitments and Contingencies Disclosure [Line Items] |  |
Outsourcing agreement, remaining term | 5 years | 5 years
Outsourcing agreement, aggregate remaining cost | ¥ 19.2 | $ 128

X
- Definition Commitments and Contingencies Disclosure [Line Items] + References No definition available. + Details
Name: | afl_CommitmentsAndContingenciesDisclosureLineItems
Namespace Prefix: | afl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LongtermPurchaseCommitmentPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=afl_ManagementConsultingAndTechnologyServicesCompanyApplicationMaintenanceAndDevelopmentServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=afl_AflacJapanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |