BUSINESS SEGMENT INFORMATION - Operations by Segment - Pretax Earnings (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||||||||||||||||
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Sep. 30, 2023 |
Sep. 30, 2022 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items] | ||||||||||||||||||||
Pretax adjusted earnings | [1] | $ 1,298 | $ 1,106 | $ 3,571 | $ 3,407 | |||||||||||||||
Net investment gains (losses) | [2],[3],[4],[5],[6] | 504 | 222 | 1,363 | 923 | |||||||||||||||
Other income (loss) | 3 | 1 | 38 | 1 | ||||||||||||||||
Earnings before income taxes | 1,805 | 1,329 | 4,972 | 4,331 | ||||||||||||||||
Income taxes applicable to pretax adjusted earnings | 203 | 196 | 570 | 610 | ||||||||||||||||
Effect of foreign currency translation on after-tax adjusted earnings | (33) | (97) | (100) | (192) | ||||||||||||||||
Remeasurement gain (loss), deferred profit liability for limited-payment contracts | 22 | (41) | 22 | (42) | ||||||||||||||||
Interest expense on debt | 39 | 45 | 109 | 127 | ||||||||||||||||
Aflac Japan | ||||||||||||||||||||
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items] | ||||||||||||||||||||
Pretax adjusted earnings | [2],[5],[7] | 869 | 817 | 2,479 | 2,560 | |||||||||||||||
Remeasurement gain (loss), deferred profit liability for limited-payment contracts | 22 | (41) | 22 | (42) | ||||||||||||||||
Hedge costs | 26 | 28 | 148 | 84 | ||||||||||||||||
Net interest cash flows from derivatives | (79) | (25) | (214) | (37) | ||||||||||||||||
Aflac U.S. | ||||||||||||||||||||
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items] | ||||||||||||||||||||
Pretax adjusted earnings | [6] | 478 | 345 | 1,199 | 1,020 | |||||||||||||||
Net interest cash flows from derivatives | (9) | (1) | (24) | 1 | ||||||||||||||||
Corporate and other | ||||||||||||||||||||
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items] | ||||||||||||||||||||
Pretax adjusted earnings | [3],[4],[8] | (49) | (56) | (107) | (173) | |||||||||||||||
Hedge income | 25 | 19 | 92 | 44 | ||||||||||||||||
Gain (loss) on change in fair value of derivative, interest rate component | 8 | 13 | 32 | 38 | ||||||||||||||||
Change in value of federal historic rehabilitation and solar tax credit investments | (64) | (19) | (169) | (61) | ||||||||||||||||
Federal historic rehabilitation and solar tax credits, amount | $ 63 | $ 19 | $ 171 | $ 63 | ||||||||||||||||
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