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Acquisitions of Subsidiaries - Summary of consideration transferred (Detail) $ in Millions | Dec. 31, 2022 USD ($) | Dec. 31, 2022 HKD ($) | Apr. 30, 2022 HKD ($) | Feb. 28, 2022 HKD ($)
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AMTD Digital [Member] |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Fair value of previously held equity interest |  |  |  | $ 1,271,643,878
Ordinary shares of the Company |  |  |  | 7,756,228,581
Cash transferred | $ 993 |  |  | $ 9,027,872,459
L'Officiel [member] |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Cash transferred |  | $ 492,824,872 | $ 492,824,872 |

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- Definition The acquisition-date fair value of equity interest in the acquiree held by the acquirer immediately before the acquisition date in a business combination achieved in stages. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph p -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_p_i&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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