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POLICY LIABILITIES - Reconciliation of Future Policy Benefits (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | $ 70,339 | $ 83,718
Deferred reinsurance gain liability |  | 148 | 175
Deferred Profit Liability - Limited-payment Contracts |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Deferred profit liability - limited-payment contracts |  | 1,667 | 1,806
Deferred reinsurance gain liability |  | 820 | 1,012
Intercompany eliminations |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits | [1] | (4,089) | (5,017)
Corporate and other | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 3,405 | 4,225
Cancer | Aflac Japan |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 26,896 | 32,652
Cancer | Aflac Japan | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 26,896 | 32,652
Medical and other health | Aflac Japan |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 8,576 | 10,560
Medical and other health | Aflac Japan | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 8,576 | 10,560
Life insurance | Aflac Japan |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 19,092 | 23,243
Life insurance | Aflac Japan | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 19,092 | 23,243
Life insurance | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 894 | 911
Life insurance | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 894 | 911
Accident | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 597 | 621
Accident | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 597 | 621
Disability | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 744 | 770
Disability | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 744 | 770
Critical Care | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 6,842 | 7,216
Critical Care | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 6,842 | 7,216
Hospital Indemnity | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 789 | 836
Hospital Indemnity | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 789 | 836
Dental/Vision | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 260 | 272
Dental/Vision | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 260 | 272
Other | Aflac Japan |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 3,353 | 4,090
Other | Aflac Japan | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 3,353 | 4,090
Other | Aflac U.S. |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | 493 | 521
Other | Aflac U.S. | Operating Segments |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Future policy benefits |  | $ 493 | $ 521
[1] | Elimination entry necessary due to the internal reinsurance transactions with Aflac Re and to recapture a portion of policy liabilities ceded externally as a result of the reinsurance retrocession transaction. See Note 8 of the Notes to the Consolidated Financial Statements in the 2023 Annual Report.

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