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Costs and expenses by nature (Details 2) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Costs And Expenses By Nature      
Expenses related to Brumadinho event $ 930 $ 1,079 $ 851
Expenses related to de-characterization of dams 153 72 1,725
Asset decommissioning obligations 5 23 121
Provision for litigations 229 153 98
Profit sharing program 147 131 126
Disposals of materials and inventories 74 46 5
COVID-19 expenses 44
Other (40) 218 6
Total $ 1,498 $ 1,722 $ 2,976