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Accruals
 12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Accruals
42 Accruals
 
 
 
 
 
 
 
 
 
 
     
                2021  
                      2020    
     
Accrued interest
      251          241    
     
Accrued expenses
 
     
 
 285  
 
  
 
     
 
 210  
 
  
 
At December 31
 
   
 
 
537  
 
 
 
   
 
 
451  
 
 
 
 
The carrying amounts disclosed reasonably approximate the fair values as at the
year-end.