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Property, plant, and equipment (Tables)
 12 Months Ended
Dec. 31, 2023
Notes and other explanatory information [abstract]  
Schedule of movements in property, plant and equipment
                   
    Consolidated
  Notes Building and land Facilities Equipment Mineral properties Railway equipment Right of use assets Other Constructions in progress Total
Balance as of December 31, 2021   8,137 7,232 4,743 7,742 2,334 1,537 2,484 7,722 41,931
Additions (i)   - - - - - 77 - 5,496 5,573
Disposals   (22) (24) (19) (3) (7) - (2) (144) (221)
Assets retirement obligation 27(b) - - - (562) - - - - (562)
Depreciation, depletion and amortization   (409) (478) (700) (436) (160) (185) (301) - (2,669)
Impairment reversal   56 34 64 39 - - 21 - 214
Transfer to asset held for sale - Midwestern System   (56) (34) (64) (39) - - (21) - (214)
Translation adjustment   308 340 102 (131) 159 26 43 39 886
Transfers   899 972 858 502 149 - 408 (3,788) -
Balance as of December 31, 2022   8,913 8,042 4,984 7,112 2,475 1,455 2,632 9,325 44,938
Cost   16,027 12,819 11,647 16,405 4,099 2,120 5,899 9,325 78,341
Accumulated depreciation   (7,114) (4,777) (6,663) (9,293) (1,624) (665) (3,267) - (33,403)
Balance as of December 31, 2022   8,913 8,042 4,984 7,112 2,475 1,455 2,632 9,325 44,938
Additions (i)   -   - - - - 74 - 6,368 6,442
Disposals   (35) (11) (15) (7) (13) - (8) (131) (220)
Assets retirement obligation 27(b) -   - - 324 - - - - 324
Depreciation, depletion and amortization   (462) (517) (736) (446) (168) (190) (323) - (2,842)
Transfer to asset held for sale   (670)                             -  (759) (791) (41) (8) (2) (521) (2,792)
Translation adjustment   578 574 214 286 187 28 138 541 2,546
Transfers   1,795 1,151 762 447 172 -   47 (4,374) -
Balance as of December 31, 2023   10,119 9,239 4,450 6,925 2,612 1,359 2,484 11,208 48,396
Cost   17,381 14,858 10,326 15,663 4,435 2,208 5,391 11,208 81,470
Accumulated depreciation   (7,262) (5,619) (5,876) (8,738) (1,823) (849) (2,907) - (33,074)
Balance as of December 31, 2023   10,119 9,239 4,450 6,925 2,612 1,359 2,484 11,208 48,396

 

(i) The additions are mainly related to the expansion of the Voisey’s Bay mine and the Salobo III project, Sol do Cerrado (solar energy plant) and the execution of the Capanema project. It also includes capitalized interest.
Schedule of estimated useful lives of property, plant and equipment
   
    Useful life
 Buildings    3 to 50 years
 Facilities    3 to 50 years
 Equipment    3 to 40 years
 Wagons    30 to 45 years
 Railway equipment    5 to 37 years
 Vessels    20 to 25 years
 Other    2 to 50 years