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Non-Cash Transactions - Summary of Changes in Liabilities Arising From Financing Activities Including Non-cash Transactions (Detail) - TWD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of reconciliation of liabilities arising from financing activities [abstract] |  |  |
Beginning Balance | $ 10,673 | $ 10,273 | $ 9,597
Cash Flows from Financing Activities | (3,884) | (3,777) | (3,729)
Changes in Non-Cash Transactions, New Leases | 4,415 | 4,369 | 4,669
Changes in Non-Cash Transactions, Others | (124) | (117) | (195)
Cash Flows from Operation Activities - Interest Paid | (105) | (75) | (69)
Ending Balance | $ 10,975 | $ 10,673 | $ 10,273

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- Definition Increase decrease through financing cash flows liabilities arising from interest paid. + References No definition available. + Details
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- Definition The increase (decrease) in liabilities arising from financing activities resulting from financing cash flows. [Refer: Cash flows from (used in) financing activities; Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 44B -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_44B_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in liabilities arising from financing activities resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 44B -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_44B_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase in liabilities arising from financing activities resulting from new leases. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Section A Statement of cash flows for an entity other than a financial institution -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A_TI -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 44B -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_44B&doctype=Standard -URIDate 2023-03-23 + Details
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