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Costs and expenses by nature - Other (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Costs And Expenses By Nature      
Expenses related to Brumadinho event $ 1,079 $ 851 $ 4,640
Expenses related to de-characterization of dam 72 1,725 617
Asset retirement obligations 23 121 312
Provision for litigations 153 98 73
Profit sharing program 131 126 169
Disposals of materials and inventories 46 5 19
COVID-19 expenses [1] 44 109
Other 218 6 118
Total $ 1,722 $ 2,976 $ 6,057
[1] The Company assisted the communities where the Company operates through humanitarian aid programs, especially in the Brazilian communities that were more adversely affected by the pandemic. The resources were used to provide needed support such as medical supplies and equipment.