The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2022-03-24
-Paragraph 73
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 54
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_54_a&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_PropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) $ in Millions, $ in Millions	Dec. 31, 2022 TWD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 TWD ($)	Dec. 31, 2020 TWD ($)
Disclosure Of The Ownership Details Of PropertyPlant And Equipment [Line Items]
Property, plant and equipment	$ 2,693,837.0	$ 87,661.5	$ 1,975,118.7	$ 1,555,589.1
Asset used by the Company [member]
Disclosure Of The Ownership Details Of PropertyPlant And Equipment [Line Items]
Property, plant and equipment	2,693,815.7		1,975,114.0	1,554,585.9
Asset subject to operating lease [member]
Disclosure Of The Ownership Details Of PropertyPlant And Equipment [Line Items]
Property, plant and equipment	$ 21.3		$ 4.7	$ 1,003.2