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Property, plant and equipment (Tables)
 12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of property, plant and equipment by class of assets
           
 

Land, buildings

and

improvement

 Equipment and other assets (1)

Assets under

construction (2)

 Exploration and development costs (3) Right-of-use assets Total
Balance at January 1, 2024 2,687 58,409 21,516 40,432 30,380 153,424
Cost 4,634 118,173 31,467 74,809 44,829 273,912
Accumulated depreciation and impairment (4) (1,947) (59,764) (9,951) (34,377) (14,449) (120,488)
Additions 21 381 15,203 102 10,492 26,199
Decommissioning costs - Additions to / review of estimates − − − 6,393 − 6,393
Capitalized borrowing costs − − 1,558 − − 1,558
Write-offs (8) (53) (300) (9) (66) (436)
Transfers (5) 482 5,126 (7,641) 2,592 10 569
Transfers to assets held for sale − 20 (5) (402) 69 (318)
Depreciation, amortization and depletion (78) (4,963) − (3,699) (6,213) (14,953)
Impairment recognition (note 25) (2) (439) (324) (864) (45) (1,674)
Impairment reversal (note 25) 4 140 11 19 13 187
Translation adjustment (621) (12,814) (5,634) (8,643) (6,952) (34,664)
Balance at December 31, 2024 2,485 45,807 24,384 35,921 27,688 136,285
Cost 3,895 96,963 30,321 67,357 42,366 240,902
Accumulated depreciation and impairment (4) (1,410) (51,156) (5,937) (31,436) (14,678) (104,617)

 

 

Balance at January 1, 2023 2,538 55,147 14,838 38,434 19,212 130,169
Cost 4,343 105,429 23,938 67,581 29,670 230,961
Accumulated depreciation and impairment (4) (1,805) (50,282) (9,100) (29,147) (10,458) (100,792)
Additions − 528 11,919 12 15,177 27,636
Decommissioning costs - Additions to / review of estimates − − − 2,672 − 2,672
Capitalized borrowing costs − − 1,277 − − 1,277
Signature Bonuses Transfers (6) − − − 16 − 16
Write-offs (11) (304) (86) (74) (156) (631)
Transfers (5) 58 5,531 (7,058) 1,754 1 286
Transfers to assets held for sale (16) (36) 99 (241) (85) (279)
Depreciation, amortization and depletion (84) (5,079) − (4,711) (5,432) (15,306)
Impairment recognition (note 25) − (1,689) (883) (314) (39) (2,925)
Impairment reversal (note 25) 3 101 9 1 28 142
Translation adjustment 199 4,210 1,401 2,883 1,674 10,367
Balance at December 31, 2023 2,687 58,409 21,516 40,432 30,380 153,424
Cost 4,634 118,173 31,467 74,809 44,829 273,912
Accumulated depreciation and impairment (4) (1,947) (59,764) (9,951) (34,377) (14,449) (120,488)
(1) It is composed of production platforms, refineries, thermoelectric power plants, natural gas processing plants, pipelines, and other operating, storage and production plants, including subsea equipment for the production and flow of oil and gas, depreciated based on the units of production method.
(2) See note 13 for assets under construction by operating segment.
(3) It is composed of exploration and production assets related to wells, abandonment and dismantling of areas, signature bonuses associated with proved reserves and other costs directly associated with the exploration and production of oil and gas, except for assets under "Equipment and other assets".
(4) In the case of land and assets under construction, it refers only to impairment losses.
(5) It mainly includes transfers between classes of assets and transfers from advances to suppliers.
(6) Transfer from Intangible Assets.
Schedule of useful life of assets
 
Asset Weighted average useful life in years
Buildings and improvement 38 (between 25 and 50)
Equipment and other assets 22 (between 1 to 31) - except assets by the units of production method
Exploration and development costs Units of production method or 20 years
Right-of-use 14 (between 2 and 50)
Schedule of estimated useful life of buildings and improvements, equipment and other assets
     
  Buildings and improvements, equipment and other assets
       
Estimated useful life Cost Accumulated 
depreciation		 Balance at December 31, 2024
5 years or less 4,789 (3,830) 959
6 - 10 years 7,159 (5,221) 1,938
11 - 15 years 4,837 (3,466) 1,371
16 - 20 years 26,561 (16,323) 10,238
21 - 25 years 26,431 (9,152) 17,279
25 - 30 years 10,627 (3,505) 7,122
30 years or more 4,773 (1,555) 3,218
Units of production method 15,535 (9,491) 6,044
Total 100,712 (52,543) 48,169
Buildings and improvements 3,749 (1,387) 2,362
Equipment and other assets 96,963 (51,156) 45,807
Schedule of accumulated depreciation and impairment
       
  Platforms Vessels Properties Total
Cost 22,484 17,542 2,340 42,366
Accumulated depreciation and impairment (4,712) (9,216) (750) (14,678)
Without contractual readjustment clauses − (7,490) (120) (7,610)
With contractual readjustment clauses – Brazil (4,712) (731) − (5,443)
With contractual readjustment clauses – abroad − (996) (629) (1,625)
Balance at December 31, 2024 17,772 8,326 1,590 27,688
Cost 23,859 18,000 2,970 44,829
Accumulated depreciation and impairment (4,803) (8,796) (850) (14,449)
Without contractual readjustment clauses − (7,103) (168) (7,271)
With contractual readjustment clauses – Brazil (4,803) (225) − (5,028)
With contractual readjustment clauses – abroad − (1,468) (682) (2,150)
Balance at December 31, 2023 19,056 9,204 2,120 30,380