v3.26.3
Related Parties - Schedule of Long-Term Debt (Details) - Cristal - MGT Loan - Related party payables - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Dec. 17, 2020
Related Party Transaction [Line Items]      
Note payable, due within 1 year $ 7 $ 8  
Note payable, due longer than 1 year from now 1 5  
Total outstanding note payable $ 8 $ 13 $ 36