v3.25.2
BUSINESS SEGMENT INFORMATION - Operations by Segment - Pretax Earnings (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]          
Total revenues $ 4,160 $ 5,138 $ 7,558 $ 10,575  
Benefits and claims, excluding reserve remeasurement 2,047 1,972 4,033 4,039  
Reserve remeasurement (gains) losses (37) (51) (78) (107)  
Total benefits and claims, net 2,010 1,921 3,955 3,932  
Amortization of deferred policy acquisition costs 221 208 437 424 $ 851
Insurance commissions 251 246 491 501  
Insurance and other expenses 804 694 1,606 1,431  
Total benefits and expenses 3,338 3,119 6,591 6,385  
Net investment gains (losses) (421) 696 (1,384) 1,647  
Earnings before income taxes 822 2,019 967 4,190  
Income taxes applicable to pretax adjusted earnings 241 235 458 438  
Effect of foreign currency translation on after-tax adjusted earnings 23 (37) 15 (81)  
Remeasurement gain (loss), deferred profit liability for limited-payment contracts   (2)   (5)  
Change in value of federal historic rehabilitation and solar tax credit investments (8) (30) (16) (62)  
Federal historic rehabilitation and solar tax credits, amount 9 31 16 64  
Operating Segments          
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]          
Total revenues 4,536 4,380 8,855 8,800  
Total benefits and expenses 3,338 3,110 6,534 6,366  
Pretax adjusted earnings 1,198 1,270 2,321 2,434  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment          
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]          
Other income (loss) 0 0 (53) (2)  
Net investment gains (losses) (421) 696 (1,384) 1,647  
Amortized hedge costs 11 7 18 13  
Amortized hedge income (30) (34) (60) (62)  
Net interest (income) expense from derivatives associated with certain investment strategies 64 89 129 177  
Impact of interest from derivatives associated with notes payable 0 (9) (4) (17)  
Aflac Japan | Operating Segments          
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]          
Total revenues [1] 2,472 2,447 4,744 4,919  
Benefits and claims, excluding reserve remeasurement 1,186 1,174 2,316 2,417  
Reserve remeasurement (gains) losses (14) (26) (39) (52)  
Total benefits and claims, net 1,172 1,148 2,277 2,365  
Amortization of deferred policy acquisition costs 85 77 164 160  
Insurance commissions 112 105 217 220  
Insurance and other expenses 313 253 574 500  
Total benefits and expenses 1,682 1,583 3,232 3,245  
Pretax adjusted earnings [1] 790 864 1,512 1,674  
Aflac U.S. | Operating Segments          
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]          
Total revenues 1,728 1,684 3,449 3,384  
Benefits and claims, excluding reserve remeasurement 736 704 1,467 1,419  
Reserve remeasurement (gains) losses (24) (24) (39) (54)  
Total benefits and claims, net 712 680 1,428 1,365  
Amortization of deferred policy acquisition costs 136 132 273 264  
Insurance commissions 139 140 274 281  
Insurance and other expenses 353 349 728 735  
Total benefits and expenses 1,340 1,301 2,703 2,645  
Pretax adjusted earnings 388 383 746 739  
Corporate and other | Operating Segments          
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]          
Total revenues [2] 336 249 662 497  
Total benefits and expenses 316 226 599 476  
Pretax adjusted earnings [2] $ 20 $ 23 $ 63 $ 21  
[1] Includes a gain (loss) of an immaterial amount and $(2) for the three-month periods and an immaterial amount and $(5) for the six-month periods ended June 30, 2025 and 2024, respectively, related to remeasurement of the deferred profit liability for limited-payment contracts.
[2] The change in value of federal historic rehabilitation and solar investments in partnerships of $8 and $30 for the three-month periods and $16 and $62 for the six-month periods ended June 30, 2025, and 2024, respectively, is included as a reduction to net investment income. Tax credits on these investments of $9 and $31 for the three-month periods and $16 and $64 for the six-month periods ended June 30, 2025, and 2024, respectively, have been recorded as an income tax benefit in the consolidated statements of earnings. See Note 3 for additional information on these investments.