XML 429 R73.htm IDEA: XBRL DOCUMENT v3.20.4
Capital and other commitments (Tables)
 12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Summary of Capital and Other Commitments
   
2020
$m
   2019
$m		 
Contracts placed for expenditure not provided for in the Group  Financial Statements
    
  
 
 
   
 
 
 
Property, plant and equipment
  
 
17
 
   52 
  
 
 
   
 
 
 
Intangible assets
  
 
2
 
   7 
  
 
 
   
 
 
 
  
 
19
 
   59