Property, Plant and Equipment - Transfers Between Classifications - Additional Information (Details) - CAD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items]
Transfers between classifications	$ 0	$ 0
Quebrada Blanca property plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Transfers between classifications	$ 3,300	$ 14,100

The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 16
-IssueDate 2024-01-01
-Paragraph 73
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration