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Acquisitions and divestitures (Details Narrative) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Aug. 31, 2022
Jul. 31, 2022
Apr. 30, 2022
Feb. 28, 2022
Dec. 21, 2021
Jun. 22, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jun. 22, 2022
IfrsStatementLineItems [Line Items]                    
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation             $ 1,121      
Reclassification adjustments on exchange differences on translation, net of tax   $ 140         4,830 $ 4,749 $ 135  
Working capital adjustments             9      
Non-current assets net             214      
Fair Value Adjustment on Property, Plant And Equipment, Recognised as of Acquisition Date             $ 916      
Reclassification adjustments on exchange differences on translation, net of tax   $ 37                
Proportion of voting rights held in joint venture             29.60%      
Outstanding net debt             $ 202      
Impairment loss     $ 589              
Impairment loss             882      
Gains losses on exchange differences on translation, net of tax $ 1,543           1,608 4,326  
Vale Nouvelle Caledonie S. A. S. [Member]                    
IfrsStatementLineItems [Line Items]                    
Reclassification adjustments on exchange differences on translation, net of tax             1,132      
Non-current assets net               98    
Vale Shipping Holding [Member]                    
IfrsStatementLineItems [Line Items]                    
Gains on Disposals of Equity Method Investments including Cumulative Translation Adjustments             $ 771      
Option Exercised Vli Shares [Member]                    
IfrsStatementLineItems [Line Items]                    
Proportion of voting rights held in joint venture             8.00%      
Henan Longyu Energy Resources [Member]                    
IfrsStatementLineItems [Line Items]                    
Total cash consideration             $ 156      
Gains losses on exchange differences on translation, net of tax                 116  
Ferroalloys [Member]                    
IfrsStatementLineItems [Line Items]                    
Total cash consideration             40 25    
Sale of the assets             11      
Impairment loss             10 10 $ 76  
Discontinued operations [member]                    
IfrsStatementLineItems [Line Items]                    
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation               $ 2,511    
Net income from discontinued operations             2,060      
Reclassification adjustments on exchange differences on translation, net of tax             3,072      
Derecognition of noncontrolling interest             585      
Working capital adjustments             $ 589      
Discontinued operations [member] | Vulcan Minerals                    
IfrsStatementLineItems [Line Items]                    
Receivable from coal net assets         $ 270          
Royalty consideration, term         10 years          
Discontinued operations [member] | Nucor Corporation [Member] | Disposal Of Joint Venture [Member]                    
IfrsStatementLineItems [Line Items]                    
Gains on Disposals of Equity Method Investments including Cumulative Translation Adjustments       $ 292            
Discontinued operations [member] | Nucor Corporation [Member] | California Steel Industries, Inc                    
IfrsStatementLineItems [Line Items]                    
Proportion of voting rights held in joint venture             50.00%      
Discontinued operations [member] | Nucor Corporation [Member] | Disposal Of Joint Venture [Member]                    
IfrsStatementLineItems [Line Items]                    
Cash flows from losing control of subsidiaries or other businesses, classified as investing activities             $ 437      
Gains on Disposals of Equity Method Investments including Cumulative Translation Adjustments             292      
Gains on disposals of investments             142      
Reclassification Adjustments on Translation from Stockholders Equity to Income Statement             150      
Discontinued operations [member] | Arcelor Mittal [Member] | Disposal Of Joint Venture [Member]                    
IfrsStatementLineItems [Line Items]                    
Gains on Disposals of Equity Method Investments including Cumulative Translation Adjustments             2,200      
Outstanding net debt             2,200      
Impairment loss             $ 135      
Vale Mocambique                    
IfrsStatementLineItems [Line Items]                    
Loss due to negative reserves           $ 1,666        
Vale Mocambique | Discontinued operations [member]                    
IfrsStatementLineItems [Line Items]                    
Percentage of voting interest acquired           15.00%        
Loss due to negative reserves           $ 331        
Ownership interest in subsidiary (as a percent)           95.00%        
Nacala Corridor Holding [Member] | Discontinued operations [member]                    
IfrsStatementLineItems [Line Items]                    
Percentage of voting interest acquired           50.00%        
Settlement of loans with third parties           $ 2,517       $ 2,517
Loss on pre-existing relationship           771        
Fair Value Adjustment on Property, Plant And Equipment, Recognised as of Acquisition Date           $ 441        
Total cash consideration                   $ 2,517