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Significant events in the current year (Details Narrative) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Aug. 31, 2022
Jul. 31, 2022
Apr. 30, 2022
Feb. 28, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
IfrsStatementLineItems [Line Items]              
Vulcan resources total consideration     $ 270        
Income from discontinued operations     2,060   $ 2,060 $ (2,291) $ (1,377)
Cumulative translation adjustments     3,072        
Carrying value noncontrolling interest     585        
Impairment     $ 589        
Capital reduction in foreign subsidiary approved $ 1,500         3,000  
Gains (losses) on exchange differences on translation, net of tax         214    
Transferring obligations   $ 140          
Gain on held for sale         $ 1,121    
Repurchase of shares         357,442,577    
Repurchase of shares, value         $ 6,036    
Proceed from sale of equity   2,200          
Net debt   2,200     7,915 1,877  
Impairment loss   $ 135          
Remuneration On Transaction [Member]              
IfrsStatementLineItems [Line Items]              
Remuneration On Stockholders Equity         6,615    
Discontinued operations [member]              
IfrsStatementLineItems [Line Items]              
Income from discontinued operations         $ 2,060 $ (2,291) $ (1,377)
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      
Vale International S. A. [Member]              
IfrsStatementLineItems [Line Items]              
Capital reduction in foreign subsidiary approved 1,500            
Gains (losses) on exchange differences on translation, net of tax $ 1,543