Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING - Segment Capital Additions (Details)

v3.21.2
SEGMENT REPORTING - Segment Capital Additions (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Segment Reporting Information [Line Items]        
Capital additions $ 167 $ 73 $ 329 $ 231
Corporate, Non-Segment        
Segment Reporting Information [Line Items]        
Capital additions 0 0 18 1
Steelmaking        
Segment Reporting Information [Line Items]        
Capital additions 146 66 279 220
Other Businesses        
Segment Reporting Information [Line Items]        
Capital additions $ 21 $ 7 $ 32 $ 10