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Intangible assets
 6 Months Ended
Jun. 30, 2025
Intangible Assets  
Intangible assets

 

18.Intangible assets
18.1.By class of assets
       
  Rights and Concessions (1) Software Goodwill Total
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 19) (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  
         
Balance at December 31, 2023 2,425 592 25 3,042
Cost 2,489 1,891 25 4,405
Accumulated amortization and impairment (64) (1,299) − (1,363)
Addition 1 101 − 102
Capitalized borrowing costs − 4 − 4
Transfers − 4 − 4
Amortization (2) (65) − (67)
Translation adjustment (312) (82) (3) (397)
Balance at June 30, 2024 2,112 554 22 2,688
Cost 2,169 1,736 22 3,927
Accumulated amortization and impairment (57) (1,182) − (1,239)
Estimated useful life in years Indefinite (2) 5 Indefinite  
(1) It 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.