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Bonds Payable - Summary of Bonds Payable (Detail) - TWD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure Of Detailed Information About Bonds Payable [Abstract] |  |
Unsecured domestic bonds | $ 30,500 | $ 30,500
Less: Discounts on bonds payable | (12) | (17)
Bonds payable | 30,488 | 30,483
Less: Current portion | (8,799) | 0
Bonds issued net | $ 21,689 | $ 30,483

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- Definition Bonds issued net + References No definition available. + Details
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- Definition Current portion of bonds payable + References No definition available. + Details
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- Definition Disclosure of detailed information about bonds payable. + References No definition available. + Details
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- Definition Discounts on bonds payable. + References No definition available. + Details
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- Definition Unsecured domestic bonds. + References No definition available. + Details
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- Definition The amount of bonds issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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