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Inventories (Tables)
 12 Months Ended
Dec. 31, 2022
Text block [abstract]  
Summary of Inventories  
                                                                                                                         
    
2022
    
2021
    
2020
  
Refined products
   
 
1,144  
 
  
 
1,024  
 
  
 
714  
 
Crude oil and natural gas
   
 
449  
 
  
 
366  
 
  
 
393  
 
Products in process
   
 
51  
 
  
 
34  
 
  
 
23  
 
Raw materials, packaging materials and others
   
 
94  
 
  
 
76  
 
  
 
61  
 
    
 
 
    
 
 
    
 
 
  
    
 
1,738  
    (1)
 
  
 
1,500  
    (1)
 
  
 
1,191  
    (1)
 
    
 
 
    
 
 
    
 
 
  
 
(1)
 
As of December 31, 2022, 2021 and 2020, the cost of inventories does not exceed their net realizable value.