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Approval of Consolidated Financial Statements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Information About Approval Of Consolidated Financial Statements [Abstract]
Date of approval of financial statements	May 13, 2024

X

- Definition

The date on which financial statements are authorized for issue.

+ References

No definition available.

+ Details

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Namespace Prefix:	amtd_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of information about approval of consolidated financial statements.

+ References

No definition available.

+ Details

Name:	amtd_DisclosureOfInformationAboutApprovalOfConsolidatedFinancialStatementsAbstract
Namespace Prefix:	amtd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration