Events after the balance sheet date (Details) - Feb. 11, 2026 $ in Millions, ₮ in Billions	MNT (₮)	USD ($)
Changes in tax rates or tax laws enacted or announced \| Oyu Tolgoi LLC
Disclosure of non-adjusting events after reporting period [line items]
Tax assessment	₮ 1,600.0	$ 440

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

No definition available.

Name:	ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration