Quarterly report [Sections 13 or 15(d)]

SEGMENT REPORTING - Summary of Assets by Segment (Details)

v3.25.3
SEGMENT REPORTING - Summary of Assets by Segment (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets $ 20,290 $ 20,947
Steelmaking [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets 19,663 20,327
Other Businesses [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets $ 627 $ 620