v3.26.3
Intangible assets
6 Months Ended
Jun. 30, 2026
Notes and other explanatory information [abstract]  
Intangible assets

 

19.Intangible assets
19.1.By class of assets
       
  Rights and Concessions (1) Software Goodwill Total
Balance at December 31, 2025 1,750 751 22 2,523
Cost 1,984 2,134 22 4,140
Accumulated amortization and impairment (234) (1,383) (1,617)
Addition 10 122 132
Capitalized borrowing costs 10 10
Write-offs (1) (1)
Transfers 4 4
Amortization (1) (93) (94)
Translation adjustment 109 48 1 158
Balance at June 30, 2026 1,868 841 23 2,732
Cost 2,118 2,393 23 4,534
Accumulated amortization and impairment (250) (1,552) (1,802)
Estimated useful life in years Indefinite (2) 5 Indefinite  
         
Balance at December 31, 2024 1,697 538 20 2,255
Cost 1,750 1,663 20 3,433
Accumulated amortization and impairment (53) (1,125) (1,178)
Addition 7 106 113
Capitalized borrowing costs 5 5
Write-offs (1) (1)
Transfers 2 2
Amortization (2) (70) (72)
Impairment recognition (note 20) (165) (165)
Translation adjustment 219 73 3 295
Balance at June 30, 2025 1,756 653 23 2,432
Cost 1,973 1,980 23 3,976
Accumulated amortization and impairment (217) (1,327) (1,544)
Estimated useful life in years Indefinite (2) 5 Indefinite  
(1) Comprises mainly signature bonuses (amounts paid in concession and production sharing contracts for oil or natural gas exploration), in addition to public service concessions, trademarks and patents and others.
(2) Mainly composed of assets with indefinite useful lives, which are reviewed annually to determine whether events and circumstances continue to support an indefinite useful life assessment.