Rendering

Component: (Network and Table)
Network
2412404 - Disclosure - SHARE-BASED COMPENSATION - Assumptions Used in Valuing Options Granted (Detail)
(http://www.aflac.com/role/ShareBasedCompensationAssumptionsUsedInValuingOptionsGrantedDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000004977 (http://www.sec.gov/CIK)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
 
 
 
Expected term (years)
P6Y4M24D  
P6Y3M18D  
P6Y3M18D  
Expected volatility
27.00%  
20.00%  
30.00%  
Annual forfeiture rate
3.20%  
2.80%  
2.70%  
Risk-free interest rate
2.20%  
2.00%  
2.80%  
Dividend yield
2.90%  
2.70%  
2.30%