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Collateral and contractual commitments for the acquisition of property, plant and equipment, loans to customers and other (Tables)
 12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Summary of Collateral and Contractual Commitments for Acquisition of Property, Plant And Equipment, Loans to Customers and Other
Million US dollar
   
31 December 2021
     
31 December 2020
  
Collateral given for own liabilities
      310        391  
Contractual commitments to purchase property, plant and equipment
      449        528  
Contractual commitments to acquire loans to associates/customers
      142        150  
Other commitments
      1 943        1 953