INVENTORIES - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Inventories [Abstract]
Purchase obligation for supplies and consumables	$ 1,621	$ 1,827

The amount of future purchase obligations for supplies and consumables that the entity is committed to make

No definition available.

Name:	abx_PurchaseObligationsForSuppliesAndConsumables
Namespace Prefix:	abx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant