v3.26.3
Related Parties - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]    
Amount due for slag purchases $ 239 $ 274
Slagger | Purchases of Feedstock Material | Related party payables | Advanced Metal Industries Cluster Company Limited    
Related Party Transaction [Line Items]    
Amount due for slag purchases $ 7 $ 3