Quarterly report [Sections 13 or 15(d)]

ACQUISITIONS - Pro Forma (Details)

v3.25.3
ACQUISITIONS - Pro Forma (Details) - Stelco Holdings Inc - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2024
Business Combination, Pro Forma Information [Line Items]    
Business Combination, Pro Forma Information, Pro Forma Revenue $ 5,049 $ 16,416
Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax $ (323) $ (390)