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PROPERTY, PLANT AND EQUIPMENT AND GOODWILL (Details)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2022
Jun. 30, 2022
USD ($)
blastFurnace
Mar. 31, 2022
Jun. 30, 2022
USD ($)
blastFurnace
Dec. 31, 2021
USD ($)
Disclosure of information for cash-generating units [line items]          
Property, plant and equipment | $   $ 29,542   $ 29,542 $ 30,075
Ukraine          
Disclosure of information for cash-generating units [line items]          
Property, plant and equipment | $   $ 2,100   $ 2,100  
Operational blast furnaces | blastFurnace   1   1  
Total blast furnaces | blastFurnace   3   3  
Blast furnace 6 capacity       20.00%  
Iron ore production %   80.00%      
Ukraine | Forecast          
Disclosure of information for cash-generating units [line items]          
Iron ore production % 30.00%        
Ukraine | Minimum          
Disclosure of information for cash-generating units [line items]          
Iron ore production %     50.00%    
Ukraine | Maximum          
Disclosure of information for cash-generating units [line items]          
Iron ore production %     60.00%