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Other Gains (Tables)
12 Months Ended
Dec. 31, 2020
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Summary of Other Gains
   2020   2019   2018 
   Million   Million   Million 
Compensation income
   758    915    1,184 
Additional deduction of input value-added tax
   2,813    667    —   
Others
   2,031    2,447    1,722 
   
 
 
   
 
 
   
 
 
 
    5,602    4,029    2,906