v3.26.1
GOODWILL AND INTANGIBLE ASSETS AND LIABILITIES - Intangible Assets and Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross $ 1,276 $ 1,310
Finite-Lived Intangible Assets, Accumulated Amortization (213) (175)
Finite-Lived Intangible Assets, Net, Total 1,063 1,135
Above-market supply contracts, Gross Amount (71) (71)
Above-market supply contracts, Accumulated Amortization 38 35
Above-market supply contracts, Net (33) (36)
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 1,027 1,058
Finite-Lived Intangible Assets, Accumulated Amortization (136) (104)
Finite-Lived Intangible Assets, Net, Total 891 954
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 60 60
Finite-Lived Intangible Assets, Accumulated Amortization (23) (21)
Finite-Lived Intangible Assets, Net, Total 37 39
Trade names and trademarks    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 88 91
Finite-Lived Intangible Assets, Accumulated Amortization (17) (14)
Finite-Lived Intangible Assets, Net, Total 71 77
Mining permits    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 72 72
Finite-Lived Intangible Assets, Accumulated Amortization (30) (30)
Finite-Lived Intangible Assets, Net, Total 42 42
Supplier relationships    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 29 29
Finite-Lived Intangible Assets, Accumulated Amortization (7) (6)
Finite-Lived Intangible Assets, Net, Total $ 22 $ 23