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Related Parties - Schedule of Long-Term Debt (Details) - Cristal - MGT Loan - Related party payables - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025 | Dec. 17, 2020
--- | --- | --- | ---
Related Party Transaction [Line Items] |  |  |
Note payable, due within 1 year | $ 8 | $ 8 |
Note payable, due longer than 1 year from now | 2 | 5 |
Total outstanding note payable | $ 10 | $ 13 | $ 36

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