Subsequent events - Text Details (Detail) $ in Millions	Jan. 15, 2026 USD ($)
Major business combination \| SpectraWAVE
Disclosure of non-adjusting events after reporting period [line items]
Portion of consideration paid consisting of cash and cash equivalents	$ 265

The portion of consideration paid or received, consisting of cash and cash equivalents, in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Total for all subsidiaries [member]; Cash and cash equivalents; Consideration paid (received)]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 40
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_40_b&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration