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Financial Assets at Amortized Cost
 12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Financial Assets at Amortized Cost
10.
FINANCIAL ASSETS AT AMORTIZED COST
 
    
December 31,

2020
     
December 31,

2021
  
    
NT$
     
NT$
  
    
(In Millions)
     
(In Millions)
  
Corporate bonds
    $ 10,977.3      $ 5,310.1  
Less: Allowance for impairment loss
      (7.1 )       (3.1 ) 
    
 
 
     
 
 
  
    
 
$
 
10,970.2
 
 
   
 
$
 
5,307.0
 
 
    
 
 
     
 
 
  
     
Current
    $ 6,598.0      $ 3,773.6  
Noncurrent
      4,372.2        1,533.4  
    
 
 
     
 
 
  
     
     $ 10,970.2      $ 5,307.0  
    
 
 
     
 
 
  
Refer to Note 33 for information relating to credit risk management and expected credit loss for financial assets at amortized cost.