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Inventories (Tables)
 12 Months Ended
Dec. 31, 2023
Text block [abstract]  
Summary of Inventories
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
2023
 
 
  
2022
 
 
  
2021
 
 
Finished goods
  
1,052 
 
  
  
1,144 
 
  
  
1,024 
 
  
Crude oil and natural gas
  
507 
 
  
  
449 
 
  
  
366 
 
  
Products in process
  
45 
 
  
  
51 
 
  
  
34 
 
  
Raw materials, packaging materials and others
  
79 
 
  
  
94 
 
  
  
76 
 
  
 
  
 
 
  
  
 
 
  
  
 
 
  
 
  
1,683 
 
(1)
 
  
1,738 
 
(1)
 
  
1,500 
 
(1)
 
 
  
 
 
  
  
 
 
  
  
 
 
  
 
(1)
As of December 31, 2023, 2022 and 2021, the cost of inventories does not exceed their net realizable value.