v3.26.3
SHAREHOLDERS' EQUITY - Reconciliation of Number of Shares of Common Stock (Detail) - shares
shares in Thousands
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Common Stock Issued [Roll Forward]    
Balance, beginning of period 1,357,909 1,356,763
Exercise of stock options and issuance of restricted shares 940 1,078
Balance, end of period 1,358,849 1,357,841
Treasury Stock [Roll Forward]    
Balance, beginning of period 839,219 806,799
Share repurchase program 24,310 25,744
Balance, end of period 863,198 832,131
Shares outstanding, end of period 495,651 525,710
Treasury Stock    
Treasury Stock [Roll Forward]    
Other purchases 359 407
Shares issued to AFL Stock Plan (471) (537)
Exercise of stock options (50) (57)
Other dispositions (169) (225)