Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND INTANGIBLE ASSETS AND LIABILITIES - Goodwill (Details)

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GOODWILL AND INTANGIBLE ASSETS AND LIABILITIES - Goodwill (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Goodwill [Line Items]    
Goodwill $ 1,130 $ 1,130
Steelmaking    
Goodwill [Line Items]    
Goodwill 956 956
Other Businesses    
Goodwill [Line Items]    
Goodwill $ 174 $ 174