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Cash and cash equivalents and investment securities
 12 Months Ended
Dec. 31, 2024
Text Block1 [Abstract]  
Cash and cash equivalents and investment securities
20. Cash and cash equivalents and investment securities
 
Million US dollar
   
31 December 2024
     
    31 December 2023
  
                   
Short-term bank deposits
   
 
4 964
   
 
4 201
Cash and bank accounts
   
 
6 210
   
 
6 131
Cash and cash equivalents
   
 
11 174
     
 
10 332
  
                   
Bank overdrafts
   
 
-
     
 
(17)
 
Cash and cash equivalents in the statement of cash flows
   
 
11 174
     
 
10 314
  
The cash outstanding as at 31 December 2024 includes restricted cash for an amount of 99m US dollar (31 December 2023: 109m US dollar). This restricted cash mainly relates to amounts deposited on a blocked account in respect to the state aid investigation into the Belgian excess profit ruling system (75m US dollar).
Investment securities
 
Million US dollar
   
31 December 2024
     
   31 December 2023
  
                   
Investment in unquoted companies
   
 
139
   
 
151
Investment in debt securities
   
 
29
   
 
27
Non-current
investments
   
 
168
     
 
178
  
                   
Investment in debt securities
   
 
221
   
 
67
Current investments
   
 
221
     
 
67
  
As at 31 December 2024, current debt securities of 221m US dollar mainly represented investments in government bonds (31 December 2023: 67m US dollar). The company’s investments in such short-term debt securities are primarily to facilitate liquidity and for capital preservation.