XML 234 R220.htm IDEA: XBRL DOCUMENT
v3.25.1

Pledged Assets - Assets Pledged as Collaterals (Detail) - TWD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Subclassifications of assets, liabilities and equities [abstract] |  |
Property, plant and equipment | $ 2,439 | $ 2,469
Land held under development (included in inventories) | 1,999 | 1,999
Restricted assets (included in other assets - others) | 1,189 | 546
Assets pledged as collateral | $ 5,627 | $ 5,014

X
- Definition Restricted deposits collateral pledged as security for liabilities. + References No definition available. + Details
Name: | cht_RestrictedDepositsCollateralPledgedAsSecurityForLiabilities
Namespace Prefix: | cht_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of collateral held that is permitted to be sold or repledged in the absence of default by the owner of the collateral. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 15 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_15_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of inventories pledged as security for liabilities. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2024-01-01 -Paragraph 36 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2024-en-r&anchor=para_36_h&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_InventoriesPledgedAsSecurityForLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of property, plant and equipment pledged as security for liabilities. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 74 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_74_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration