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Commitments (Tables)
 12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Schedule of Commitments
      
UNITED STATES DOLLAR
 
      
2019
   2018 
34.
  
COMMITMENTS
  
 
 
 
  
 
 
 
 
  
Capital expenditure
  
 
 
 
  
 
 
 
 
  
Contracted for
  
 
4
7.9
 
  
 
50.0
 
 
 
 
 
 
  
Operating leases
1
  
 
 
 
  
 
 
 
 
  
- within one year
  
 
—
 
  
 
76.7
 
 
  
- later than one and not later than five years
  
 
—
 
  
 
256.5
 
 
  
- later than five years
  
 
—
 
  
 
324.2
 
Schedule of Lease Contracts
                 
   
31 December 2019
 
   
Undiscounted
lease liabilities
2
   
Non-lease

elements
3
   
Fully variable
lease
payments
4
   
Total
 
Lease contracts
                    
- within one year
   63.9    98.7    502.3    664.9 
- later than one and not later than five years
   178.2    290.1    1,410.3    1,878.6 
- later than five years
   205.3    83.3    21.7    310.3 
   
 
 
   
 
 
   
 
 
   
 
 
 
    447.4    472.1    1,943.3    2,853.8