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Changes in fair value of financial assets / (liabilities)
 12 Months Ended
Dec. 31, 2019
Statement of changes in equity [abstract]  
Changes in fair value of financial assets / (liabilities)
28
Changes in fair value of financial assets / (liabilities)
 
 
  
2019
 
  
2018
 
 
  
RMB million
 
  
RMB million
 
Other
non-current
financial assets (FVPL) (Note 26)
  
 
3
 
  
 
(8
) 
Cross currency swaps (Note 27)
  
 
231
 
  
 
20
 
Forward foreign exchange contracts (Note 27)
  
 
31
 
  
 
—  
 
 
  
 
 
 
  
 
 
 
 
  
 
265
 
  
 
12