The amount of current trade receivables. [Refer: Trade receivables]

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-Name IAS
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-IssueDate 2024-01-01
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
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Name:	ifrs-full_CurrentTradeReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Trade Notes and Accounts Receivable, Net - Summary of Trade Notes and Accounts Receivable, Net (Detail) $ in Millions, $ in Millions	Dec. 31, 2024 TWD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 TWD ($)	Dec. 31, 2022 TWD ($)
Disclosure Of Financial Assets [Line Items]
Trade notes and accounts receivable	$ 26,026	$ 794	$ 24,842	$ 24,672
Less: Loss allowance	1,143		1,102
Gross carrying amount [Member]
Disclosure Of Financial Assets [Line Items]
Trade notes and accounts receivable	$ 27,169		$ 25,944