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Right-of-use Assets -Summary of Evolution of the Group's Right-of-use Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of quantitative information about right-of-use assets [line items]        
Beginning balance $ 519 $ 524 $ 1,027  
Increases 306 284 149  
Ending balance 541 519 524 $ 1,027
Land and buildings [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Beginning balance 22 7 13  
Ending balance 14 22 7 13
Exploitation Facilities and Equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Beginning balance 130 178 278  
Ending balance 194 130 178 278
Machinery and equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Beginning balance 117 182 489  
Ending balance 74 117 182 489
Gas Stations [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Beginning balance 65 66 78  
Ending balance 56 65 66 78
Transportation equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Beginning balance 185 91 169  
Ending balance 203 185 91 169
Cost [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 306 284 149  
Translation effect (8) (3) (3)  
Adjustment for inflation 12 6 3  
Decreases, reclassifications and other movements (101) (175) (458)  
Right of use assets 1,281 1,072 960 1,269
Cost [member] | Land and buildings [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 2 17    
Adjustment for inflation 1      
Decreases, reclassifications and other movements (3)   (1)  
Right of use assets 33 33 16 17
Cost [member] | Exploitation Facilities and Equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 148 39 56  
Decreases, reclassifications and other movements (5) (13) (119)  
Right of use assets 495 352 326 389
Cost [member] | Machinery and equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 17 28 63  
Decreases, reclassifications and other movements (15) (45) (317)  
Right of use assets 283 281 298 552
Cost [member] | Gas Stations [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 5 12 1  
Translation effect (8) (3) (3)  
Adjustment for inflation 11 6 3  
Decreases, reclassifications and other movements (9) (6) 0  
Right of use assets 100 101 92 91
Cost [member] | Transportation equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 134 188 29  
Decreases, reclassifications and other movements (69) (111) (21)  
Right of use assets 370 305 228 220
Accumulated depreciation [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 271 245 308  
Translation effect (4) (1) (1)  
Adjustment for inflation 5 2 1  
Decreases, reclassifications and other movements (85) (129) (114)  
Right of use assets 740 553 436 242
Accumulated depreciation [member] | Land and buildings [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 9 2 5  
Decreases, reclassifications and other movements (1)      
Right of use assets 19 11 9 4
Accumulated depreciation [member] | Exploitation Facilities and Equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 81 81 105  
Decreases, reclassifications and other movements (2) (7) (68)  
Right of use assets 301 222 148 111
Accumulated depreciation [member] | Machinery and equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 57 67 90  
Decreases, reclassifications and other movements (12) (19) (37)  
Right of use assets 209 164 116 63
Accumulated depreciation [member] | Gas Stations [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 12 11 13  
Translation effect (4) (1) (1)  
Adjustment for inflation 5 2 1  
Decreases, reclassifications and other movements (5) (2)    
Right of use assets 44 36 26 13
Accumulated depreciation [member] | Transportation equipment [member]        
Disclosure of quantitative information about right-of-use assets [line items]        
Increases 112 84 95  
Decreases, reclassifications and other movements (65) (101) (9)  
Right of use assets $ 167 $ 120 $ 137 $ 51