Related Parties - Schedule of Feedstock Purchased Cost of Goods Sold (Details) - Slagger - Advanced Metal Industries Cluster Company Limited - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Related Party Transaction [Line Items]
Purchases of feedstock material	$ 7	$ 14	$ 14	$ 30
Settled as in-kind repayment of Tronox Loans
Related Party Transaction [Line Items]
Purchases of feedstock material	0	0	0	10
Settled in cash
Related Party Transaction [Line Items]
Purchases of feedstock material	$ 7	$ 14	$ 14	$ 20

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details