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Flight operation expenses
 12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Flight operation expenses
7
Flight operation expenses
 
   
2019
   
2018
   
2017
 
   
RMB million
   
RMB million
(Note)
   
RMB million
(Note)
 
Jet fuel costs
   42,814    42,922    31,895 
Flight personnel payroll and welfare
   12,709    11,467    10,574 
Air catering expenses
   3,975    3,734    3,379 
Civil Aviation Development Fund
   2,332    2,940    2,720 
Aircraft operating lease charges
   1,412    8,726    8,022 
Training expenses
   1,142    894    1,184 
Aircraft insurance
   192    163    —   
Others
   5,990    5,370    5,204 
  
 
 
   
 
 
   
 
 
 
   70,566    76,216    62,978 
  
 
 
   
 
 
   
 
 
 
Note: The Group has initially applied IFRS 16 at January 1, 2019 using the modified retrospective approach. Under this approach, comparative information is not restated. See Note 2(b).