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Subsidiaries - Summary of Impact of Acquisition on Financial Results of Company (Detail) - IISI and its Subsidiaries [Member] $ in Millions | 6 Months Ended
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Dec. 31, 2020 TWD ($)
Disclosure Of Business Combinations [Line Items] |
Revenue | $ 1,348
Profit | $ 68

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- Definition The profit (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2020-01-01 -Paragraph B64 -Subparagraph q -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2020-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
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- Definition The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2020-01-01 -Paragraph B64 -Subparagraph q -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2020-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
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