v3.26.1
Property Plant and Equipment - Summary of Changes in Property Plant and Equipment (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Jan. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year $ 17,712 $ 18,736 $ 17,712  
Increases from business combinations   4,909 5,600 $ 6,191
Amount at end of year   19,085 18,736 17,712
Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 75,168 52,404 75,168 70,064
Increases   4,909 5,600 6,191
Increases from business combinations   435    
Translation effect   (655) (290) (1,455)
Adjustment for inflation   502 1,198 863
Decreases, reclassifications and other movements   (6,043) (29,272) (495)
Amount at end of year   51,552 52,404 75,168
Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 54,636 32,948 54,636 51,803
Increases   2,992 2,771 3,252
Translation effect   (354) (151) (764)
Adjustment for inflation   270 639 453
Decreases, reclassifications and other movements   (4,230) (24,947) (108)
Amount at end of year   31,626 32,948 54,636
Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 20,532 19,456 20,532 18,261
Amount at end of year   19,926 19,456 20,532
Land and buildings [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 1,340 1,355 1,340 1,395
Increases   1 1 1
Increases from business combinations   11    
Translation effect   (81) (43) (178)
Adjustment for inflation   62 151 106
Decreases, reclassifications and other movements   (24) (94) 16
Amount at end of year   1,324 1,355 1,340
Land and buildings [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 688 715 688 700
Increases   27 29 28
Translation effect   (45) (19) (96)
Adjustment for inflation   34 80 57
Decreases, reclassifications and other movements   (28) (63) (1)
Amount at end of year   703 715 688
Land and buildings [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 652 640 652 695
Amount at end of year   621 640 652
Mining Property, Wells and Related Equipment [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 53,101 28,511 53,101 50,087
Increases   175 169 511
Increases from business combinations   184    
Decreases, reclassifications and other movements   (1,174) (24,759) 2,503
Amount at end of year   27,696 28,511 53,101
Mining Property, Wells and Related Equipment [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 44,894 22,329 44,894 42,294
Increases   2,348 2,160 2,692
Decreases, reclassifications and other movements   (4,134) (24,725) (92)
Amount at end of year   20,543 22,329 44,894
Mining Property, Wells and Related Equipment [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 8,207 6,182 8,207 7,793
Amount at end of year   7,153 6,182 8,207
Refinery equipment and petrochemical plants [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 8,911 9,331 8,911 8,677
Increases   125 95 99
Increases from business combinations   51    
Decreases, reclassifications and other movements   555 325 135
Amount at end of year   10,062 9,331 8,911
Refinery equipment and petrochemical plants [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 5,858 6,230 5,858 5,494
Increases   389 372 364
Decreases, reclassifications and other movements     0 0
Amount at end of year   6,619 6,230 5,858
Refinery equipment and petrochemical plants [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 3,053 3,101 3,053 3,183
Amount at end of year   3,443 3,101 3,053
Transportation equipment [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 677 728 677 528
Increases   17 28 6
Increases from business combinations   93    
Translation effect   (31) (12) (55)
Adjustment for inflation   24 48 33
Decreases, reclassifications and other movements   178 (13) 165
Amount at end of year   1,009 728 677
Transportation equipment [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 370 378 370 359
Increases   59 41 30
Translation effect   (19) (8) (36)
Adjustment for inflation   14 32 22
Decreases, reclassifications and other movements   (29) (57) (5)
Amount at end of year   403 378 370
Transportation equipment [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 307 350 307 169
Amount at end of year   606 350 307
Materials and equipment in warehouse [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 1,439 1,563 1,439 1,195
Increases   867 1,263 1,282
Increases from business combinations   46    
Translation effect   (10) (4) (19)
Adjustment for inflation   8 16 11
Decreases, reclassifications and other movements   (1,200) (1,151) (1,030)
Amount at end of year   1,274 1,563 1,439
Materials and equipment in warehouse [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 1,439 1,563 1,439 1,195
Amount at end of year   1,274 1,563 1,439
Drilling and work in progress [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 5,665 6,068 5,665 3,880
Increases   3,673 3,928 4,161
Increases from business combinations   50    
Translation effect   (16) (6) (46)
Adjustment for inflation   12 24 27
Decreases, reclassifications and other movements   (4,376) (3,543) (2,357)
Amount at end of year   5,411 6,068 5,665
Drilling and work in progress [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 5,665 6,068 5,665 3,880
Amount at end of year   5,411 6,068 5,665
Exploratory Drilling in Progress [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 131 59 131 38
Increases   40 99 119
Decreases, reclassifications and other movements   (85) (171) (26)
Amount at end of year   14 59 131
Exploratory Drilling in Progress [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 131 59 131 38
Amount at end of year   14 59 131
Furniture, fixtures and installations [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 869 896 869 832
Increases   3 2 4
Translation effect   (18) (7) (30)
Adjustment for inflation   14 31 18
Decreases, reclassifications and other movements   23 1 45
Amount at end of year   918 896 869
Furniture, fixtures and installations [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 786 800 786 761
Increases   40 39 36
Translation effect   (11) (5) (27)
Adjustment for inflation   9 22 16
Decreases, reclassifications and other movements (42) (10)    
Amount at end of year   828 800 786
Furniture, fixtures and installations [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 83 96 83 71
Amount at end of year   90 96 83
Selling equipment [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 1,382 1,565 1,382 1,343
Decreases, reclassifications and other movements   37 183 39
Amount at end of year   1,602 1,565 1,382
Selling equipment [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 981 1,041 981 925
Increases   75 72 64
Decreases, reclassifications and other movements   (1) (12) (8)
Amount at end of year   1,115 1,041 981
Selling equipment [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 401 524 401 418
Amount at end of year   487 524 401
Infrastructure for Natural Gas Distribution [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 810 1,375 810 1,159
Translation effect   (399) (176) (904)
Adjustment for inflation   304 746 537
Decreases, reclassifications and other movements   40 (5) 18
Amount at end of year   1,320 1,375 810
Infrastructure for Natural Gas Distribution [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 411 711 411 586
Increases   26 25 10
Translation effect   (205) (89) (455)
Adjustment for inflation   157 376 270
Decreases, reclassifications and other movements   (1) (12) 0
Amount at end of year   688 711 411
Infrastructure for Natural Gas Distribution [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 399 664 399 573
Amount at end of year   632 664 399
Other Property [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 843 953 843 930
Increases   8 15 8
Translation effect   (100) (42) (223)
Adjustment for inflation   78 182 131
Decreases, reclassifications and other movements   (17) (45) (3)
Amount at end of year   922 953 843
Other Property [member] | Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year 648 744 648 684
Increases   28 33 28
Translation effect   (74) (30) (150)
Adjustment for inflation   56 129 88
Decreases, reclassifications and other movements   (27) (36) (2)
Amount at end of year   727 744 648
Other Property [member] | Net book value of property, plant and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Amount at beginning of year $ 195 209 195 246
Amount at end of year   $ 195 $ 209 $ 195