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Contingencies (Details)
 3 Months Ended
Mar. 31, 2016
USD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Jul. 24, 2020
USD ($)
Aug. 31, 2016
Applicability, Impact and Conclusion of Environmental Loss Contingencies [Abstract]          
Environmental contingency accrual   $ 66,900,000 $ 57,300,000    
Loss Contingencies [Line Items]          
Maximum potential liabilitiy       $ 550,000  
New Wales water loss incident          
Loss Contingencies [Line Items]          
Number Of Cells With Sinkholes         1
Number Of Cells In The Active Stack         2
New Wales Phase II East Stack          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   30,000,000      
Brazilian subsidiary judicial and administrative proceedings          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   65,800,000      
Brazilian subsidiary labor claims          
Loss Contingencies [Line Items]          
Loss Contingency Accrual   57,100,000      
Brazilian subsidiary environmental claims          
Loss Contingencies [Line Items]          
Loss Contingency Accrual   5,600,000      
Brazilian subsidiary other civil contingent liabilities and other claims          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   3,100,000      
Uberaba gypstacks settled litigation          
Loss Contingencies [Line Items]          
Loss Contingency, Damages Awarded, Value $ 300,000        
Maximum | Brazilian subsidiary judicial and administrative proceedings          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   769,900,000      
Maximum | Brazilian Non Income Tax Proceedings          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   415,500,000      
Maximum | Brazilian Non Income Tax Proceedings | Indemnification Agreement Vale S.A.          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   192,400,000      
Maximum | Brazilian Non Income Tax Proceedings | PIS And Cofins Cases          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   271,100,000      
Maximum | Brazilian subsidiary labor claims          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   593,700,000      
Maximum | Brazilian subsidiary environmental claims          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   21,200,000      
Maximum | Brazilian subsidiary other civil contingent liabilities and other claims          
Loss Contingencies [Line Items]          
Maximum potential liabilitiy   155,000,000      
Minimum | New Wales water loss incident          
Loss Contingencies [Line Items]          
Financial assurance to support off-site monitoring and sinkhole remediation costs   $ 40,000,000