Property, plant, and equipment and assets held-for-sale, net - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($) mill	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($) mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation expense	$ 400	$ 500
Assets held-for-sale	2,893		$ 2,893
Held-for-sale | SAG Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held-for-sale	$ 2,900		$ 2,900
Number of mills | mill	1		1