v3.26.1
POLICY LIABILITIES - Schedule of Changes in Present Value of Expected Future Net Premiums and Expected Future Policy Benefits (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Present value of expected future policy benefits:      
Beginning balance $ 100,522    
Ending balance 92,288 $ 100,522  
Net liability for future policy benefits 57,181 62,320  
Aflac Japan | Cancer      
Present value of expected future net premiums:      
Beginning balance 12,207 14,184  
Beginning balance at original discount rate 13,201 14,008  
Effect of changes in cash flow assumptions   0 $ (661)
Effect of actual variances from expected experience   (247) (436)
Adjusted beginning of period balance   12,954 12,911
Issuances 419 1,114  
Interest accrual 171 364  
Net premiums collected [1] (624) (1,379)  
Foreign currency translation (467) 193  
Other 0 (2)  
Ending balance at original discount rate 12,453 13,201  
Effect of changes in discount rate assumptions (1,467) (994)  
Ending balance 10,986 12,207  
Present value of expected future policy benefits:      
Beginning balance 34,987 40,781  
Beginning balance at original discount rate 36,438 37,856  
Effect of changes in cash flow assumptions   0 (1,130)
Effect of actual variances from expected experience   (277) (483)
Adjusted beginning of period balance   36,161 36,243
Issuances 428 1,138  
Interest accrual 602 1,299  
Benefit payments (1,264) (2,723)  
Foreign currency translation (1,293) 481  
Other 0 0  
Ending balance at original discount rate 34,634 36,438  
Effect of changes in discount rate assumptions (3,323) (1,451)  
Ending balance 31,311 34,987  
Net liability for future policy benefits 20,325 22,780  
Less: reinsurance recoverable 3,920 4,406  
Net liability for future policy benefits after reinsurance recoverable 16,405 18,374  
Aflac Japan | Medical and other health      
Present value of expected future net premiums:      
Beginning balance 10,349 11,817  
Beginning balance at original discount rate 11,511 11,845  
Effect of changes in cash flow assumptions   0 136
Effect of actual variances from expected experience   (161) (84)
Adjusted beginning of period balance   11,350 11,897
Issuances 165 253  
Interest accrual 134 292  
Net premiums collected [1] (487) (1,076)  
Foreign currency translation (403) 146  
Other (1) (1)  
Ending balance at original discount rate 10,758 11,511  
Effect of changes in discount rate assumptions (1,577) (1,162)  
Ending balance 9,181 10,349  
Present value of expected future policy benefits:      
Beginning balance 17,692 20,606  
Beginning balance at original discount rate 21,979 21,957  
Effect of changes in cash flow assumptions   0 108
Effect of actual variances from expected experience   (187) (102)
Adjusted beginning of period balance   21,792 21,963
Issuances 169 260  
Interest accrual 265 564  
Benefit payments (485) (1,044)  
Foreign currency translation (782) 236  
Other 0 0  
Ending balance at original discount rate 20,959 21,979  
Effect of changes in discount rate assumptions (5,274) (4,287)  
Ending balance 15,685 17,692  
Net liability for future policy benefits 6,504 7,343  
Less: reinsurance recoverable 933 1,062  
Net liability for future policy benefits after reinsurance recoverable 5,571 6,281  
Aflac Japan | Life insurance      
Present value of expected future net premiums:      
Beginning balance 4,547 5,156  
Beginning balance at original discount rate 4,772 5,084  
Effect of changes in cash flow assumptions   0 (40)
Effect of actual variances from expected experience   (38) (62)
Adjusted beginning of period balance   4,734 4,982
Issuances 164 405  
Interest accrual 53 110  
Net premiums collected [1] (353) (795)  
Foreign currency translation (165) 70  
Other 0 0  
Ending balance at original discount rate 4,433 4,772  
Effect of changes in discount rate assumptions (350) (225)  
Ending balance 4,083 4,547  
Present value of expected future policy benefits:      
Beginning balance 20,894 24,265  
Beginning balance at original discount rate 25,716 26,330  
Effect of changes in cash flow assumptions   0 (101)
Effect of actual variances from expected experience   (46) (61)
Adjusted beginning of period balance   25,670 26,168
Issuances 169 417  
Interest accrual 265 569  
Benefit payments (1,080) (1,753)  
Foreign currency translation (903) 315  
Other 0 0  
Ending balance at original discount rate 24,121 25,716  
Effect of changes in discount rate assumptions (5,681) (4,822)  
Ending balance 18,440 20,894  
Net liability for future policy benefits 14,357 16,347  
Less: reinsurance recoverable 303 0  
Net liability for future policy benefits after reinsurance recoverable 14,054 16,347  
Aflac Japan | Other      
Present value of expected future net premiums:      
Beginning balance 725 846  
Beginning balance at original discount rate 800 864  
Effect of changes in cash flow assumptions   0 5
Effect of actual variances from expected experience   (6) (12)
Adjusted beginning of period balance   794 857
Issuances 1 9  
Interest accrual 7 16  
Net premiums collected [1] (43) (95)  
Foreign currency translation (27) 13  
Other 0 0  
Ending balance at original discount rate 732 800  
Effect of changes in discount rate assumptions (96) (75)  
Ending balance 636 725  
Present value of expected future policy benefits:      
Beginning balance 3,671 4,225  
Beginning balance at original discount rate 4,758 4,765  
Effect of changes in cash flow assumptions   0 74
Effect of actual variances from expected experience   (13) (21)
Adjusted beginning of period balance   4,745 4,818
Issuances 3 14  
Interest accrual 43 91  
Benefit payments (108) (218)  
Foreign currency translation (168) 53  
Other 0 0  
Ending balance at original discount rate 4,515 4,758  
Effect of changes in discount rate assumptions (1,254) (1,087)  
Ending balance 3,261 3,671  
Net liability for future policy benefits 2,625 2,946  
Less: reinsurance recoverable 0 0  
Net liability for future policy benefits after reinsurance recoverable 2,625 2,946  
Aflac U.S. | Life insurance      
Present value of expected future net premiums:      
Beginning balance 1,021 909  
Beginning balance at original discount rate 1,051 976  
Effect of changes in cash flow assumptions   0 (5)
Effect of actual variances from expected experience   (29) (32)
Adjusted beginning of period balance   1,022 939
Issuances 176 246  
Interest accrual 23 42  
Net premiums collected [1] (90) (171)  
Foreign currency translation 0 0  
Other (3) (5)  
Ending balance at original discount rate 1,128 1,051  
Effect of changes in discount rate assumptions (40) (30)  
Ending balance 1,088 1,021  
Present value of expected future policy benefits:      
Beginning balance 2,076 1,847  
Beginning balance at original discount rate 2,288 2,126  
Effect of changes in cash flow assumptions   0 (17)
Effect of actual variances from expected experience   (39) (53)
Adjusted beginning of period balance   2,249 2,056
Issuances 182 254  
Interest accrual 48 87  
Benefit payments (57) (109)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 2,422 2,288  
Effect of changes in discount rate assumptions (243) (212)  
Ending balance 2,179 2,076  
Net liability for future policy benefits 1,091 1,055  
Less: reinsurance recoverable 29 25  
Net liability for future policy benefits after reinsurance recoverable 1,062 1,030  
Aflac U.S. | Accident      
Present value of expected future net premiums:      
Beginning balance 2,525 2,497  
Beginning balance at original discount rate 2,637 2,687  
Effect of changes in cash flow assumptions   0 18
Effect of actual variances from expected experience   (16) 21
Adjusted beginning of period balance   2,621 2,726
Issuances 169 295  
Interest accrual 55 110  
Net premiums collected [1] (241) (487)  
Foreign currency translation 0 0  
Other (2) (7)  
Ending balance at original discount rate 2,602 2,637  
Effect of changes in discount rate assumptions (147) (112)  
Ending balance 2,455 2,525  
Present value of expected future policy benefits:      
Beginning balance 3,184 3,127  
Beginning balance at original discount rate 3,348 3,386  
Effect of changes in cash flow assumptions   0 47
Effect of actual variances from expected experience   (40) 9
Adjusted beginning of period balance   3,308 3,442
Issuances 174 300  
Interest accrual 69 138  
Benefit payments (251) (532)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 3,300 3,348  
Effect of changes in discount rate assumptions (210) (164)  
Ending balance 3,090 3,184  
Net liability for future policy benefits 635 659  
Less: reinsurance recoverable 0 0  
Net liability for future policy benefits after reinsurance recoverable 635 659  
Aflac U.S. | Disability      
Present value of expected future net premiums:      
Beginning balance 1,685 1,635  
Beginning balance at original discount rate 1,726 1,726  
Effect of changes in cash flow assumptions   0 (22)
Effect of actual variances from expected experience   12 20
Adjusted beginning of period balance   1,738 1,724
Issuances 177 341  
Interest accrual 36 69  
Net premiums collected [1] (202) (402)  
Foreign currency translation 0 0  
Other (2) (6)  
Ending balance at original discount rate 1,747 1,726  
Effect of changes in discount rate assumptions (64) (41)  
Ending balance 1,683 1,685  
Present value of expected future policy benefits:      
Beginning balance 2,336 2,330  
Beginning balance at original discount rate 2,401 2,466  
Effect of changes in cash flow assumptions   0 (46)
Effect of actual variances from expected experience   9 5
Adjusted beginning of period balance   2,410 2,425
Issuances 186 355  
Interest accrual 50 99  
Benefit payments (238) (478)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 2,408 2,401  
Effect of changes in discount rate assumptions (98) (65)  
Ending balance 2,310 2,336  
Net liability for future policy benefits 627 651  
Less: reinsurance recoverable 0 0  
Net liability for future policy benefits after reinsurance recoverable 627 651  
Aflac U.S. | Critical care      
Present value of expected future net premiums:      
Beginning balance 3,945 3,901  
Beginning balance at original discount rate 4,242 4,340  
Effect of changes in cash flow assumptions   0 (163)
Effect of actual variances from expected experience   (28) (2)
Adjusted beginning of period balance   4,214 4,175
Issuances 286 488  
Interest accrual 89 177  
Net premiums collected [1] (294) (590)  
Foreign currency translation 0 0  
Other (2) (8)  
Ending balance at original discount rate 4,293 4,242  
Effect of changes in discount rate assumptions (352) (297)  
Ending balance 3,941 3,945  
Present value of expected future policy benefits:      
Beginning balance 10,845 10,701  
Beginning balance at original discount rate 11,812 12,013  
Effect of changes in cash flow assumptions   0 (219)
Effect of actual variances from expected experience   (46) (15)
Adjusted beginning of period balance   11,766 11,779
Issuances 300 503  
Interest accrual 256 515  
Benefit payments (489) (985)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 11,833 11,812  
Effect of changes in discount rate assumptions (1,146) (967)  
Ending balance 10,687 10,845  
Net liability for future policy benefits 6,746 6,900  
Less: reinsurance recoverable 0 0  
Net liability for future policy benefits after reinsurance recoverable 6,746 6,900  
Aflac U.S. | Hospital indemnity      
Present value of expected future net premiums:      
Beginning balance 1,171 1,122  
Beginning balance at original discount rate 1,231 1,221  
Effect of changes in cash flow assumptions   0 (8)
Effect of actual variances from expected experience   (6) 16
Adjusted beginning of period balance   1,225 1,229
Issuances 130 211  
Interest accrual 26 50  
Net premiums collected [1] (128) (255)  
Foreign currency translation 0 0  
Other (1) (4)  
Ending balance at original discount rate 1,252 1,231  
Effect of changes in discount rate assumptions (74) (60)  
Ending balance 1,178 1,171  
Present value of expected future policy benefits:      
Beginning balance 1,955 1,897  
Beginning balance at original discount rate 2,071 2,073  
Effect of changes in cash flow assumptions   0 (4)
Effect of actual variances from expected experience   (12) 8
Adjusted beginning of period balance   2,059 2,077
Issuances 136 217  
Interest accrual 44 87  
Benefit payments (159) (310)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 2,080 2,071  
Effect of changes in discount rate assumptions (144) (116)  
Ending balance 1,936 1,955  
Net liability for future policy benefits 758 784  
Less: reinsurance recoverable 0 0  
Net liability for future policy benefits after reinsurance recoverable 758 784  
Aflac U.S. | Dental/vision      
Present value of expected future net premiums:      
Beginning balance 202 196  
Beginning balance at original discount rate 208 209  
Effect of changes in cash flow assumptions   0 (10)
Effect of actual variances from expected experience   (4) (10)
Adjusted beginning of period balance   204 189
Issuances 22 50  
Interest accrual 5 9  
Net premiums collected [1] (19) (39)  
Foreign currency translation 0 0  
Other 0 (1)  
Ending balance at original discount rate 212 208  
Effect of changes in discount rate assumptions (9) (6)  
Ending balance 203 202  
Present value of expected future policy benefits:      
Beginning balance 438 441  
Beginning balance at original discount rate 458 477  
Effect of changes in cash flow assumptions   0 (15)
Effect of actual variances from expected experience   (4) (13)
Adjusted beginning of period balance   454 449
Issuances 24 50  
Interest accrual 10 20  
Benefit payments (30) (61)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 458 458  
Effect of changes in discount rate assumptions (27) (20)  
Ending balance 431 438  
Net liability for future policy benefits 228 236  
Less: reinsurance recoverable 0 0  
Net liability for future policy benefits after reinsurance recoverable 228 236  
Aflac U.S. | Other      
Present value of expected future net premiums:      
Beginning balance 1,968 826  
Beginning balance at original discount rate 1,835 824  
Effect of changes in cash flow assumptions   0 386
Effect of actual variances from expected experience   (55) 146
Adjusted beginning of period balance   1,780 1,356
Issuances 588 571  
Interest accrual 61 73  
Net premiums collected [1] (112) (138)  
Foreign currency translation 0 0  
Other (1) (27)  
Ending balance at original discount rate 2,316 1,835  
Effect of changes in discount rate assumptions 171 133  
Ending balance 2,487 1,968  
Present value of expected future policy benefits:      
Beginning balance 2,444 1,288  
Beginning balance at original discount rate 2,304 1,293  
Effect of changes in cash flow assumptions   0 399
Effect of actual variances from expected experience   (48) 148
Adjusted beginning of period balance   2,256 $ 1,840
Issuances 595 574  
Interest accrual 73 97  
Benefit payments (133) (207)  
Foreign currency translation 0 0  
Other 0 0  
Ending balance at original discount rate 2,791 2,304  
Effect of changes in discount rate assumptions 167 140  
Ending balance 2,958 2,444  
Net liability for future policy benefits 471 476  
Less: reinsurance recoverable 17 11  
Net liability for future policy benefits after reinsurance recoverable $ 454 $ 465  
[1] Net premiums collected represent the portion of gross premiums collected from policyholders that is used to fund expected future benefit payments.