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Related Party Transactions - Schedule of Long-Term Debt (Details) - MGT Loan - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 17, 2020
Related Party Transaction [Line Items]
Note payable, due within 1 year	$ 8
Total outstanding note payable	13		$ 36
Cristal | Related Party
Related Party Transaction [Line Items]
Note payable, due within 1 year	8	$ 7
Note payable, due longer than 1 year from now	5	12
Total outstanding note payable	$ 13	$ 19	$ 36

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