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BUSINESS SEGMENT INFORMATION - Additional Information (Details) - segment | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Number of reportable insurance business segments | 2 |  |
Aflac Japan |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of the Company's total revenues | 56.00% | 61.00% |
Percentage of the Company's total assets | 79.00% |  | 80.00%

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- Definition Percentage of Company Assets. + References No definition available. + Details
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- Definition Percentage of Company Revenue. + References No definition available. + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-18 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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