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Revenue
 12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Revenue
 
 
  
 
  
UNITED STATES DOLLAR
 
 
  
 
  
2019
 
  
2018
 
  
2017
 
1.
  
REVENUE
  
   
  
   
  
   
 
  
Revenue from contracts with customers
  
 
2,967.1
 
  
 
2,577.8
 
  
 
2,761.8
 
 
  
- Gold¹
  
 
2,802.0
 
  
 
2,408.6
 
  
 
2,584.0
 
 
  
- Copper²
  
 
165.1
 
  
 
169.2
 
  
 
177.8
 
 
  
Disclosure of disaggregated revenue from contracts with customers
  
   
  
   
  
   
 
  
The Group generates revenue primarily from the sale of gold bullion and copper concentrate to refineries and banks. All revenue from contracts with customers is recognised at a point in time. The Group also produces silver which is an insignificant 
by-product.
  
   
  
   
  
   
 
  
The disaggregation of revenue from contracts with customers by primary geographical market and product is described in the segment note (note 43).
  
   
  
   
  
   
¹
 
All regions.
²
 
Only Peru region (Cerro Corona).