v3.25.1
Cover
 12 Months Ended
Dec. 31, 2024
shares
Document Information [Line Items]  
Document Type 20-F/A
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Financial Statement Error Correction [Flag] false
Document Shell Company Report false
Entity Interactive Data Current Yes
Document Accounting Standard U.S. GAAP
ICFR Auditor Attestation Flag true
Amendment Flag true
Amendment Description Amendment No. 1
Document Period End Date Dec. 31, 2024
Document Fiscal Year Focus 2024
Document Fiscal Period Focus FY
Entity Information [Line Items]  
Entity Registrant Name AMTD IDEA GROUP
Entity Central Index Key 0001769731
Entity File Number 001-39006
Entity Incorporation, State or Country Code E9
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Shell Company false
Entity Filer Category Accelerated Filer
Entity Emerging Growth Company false
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One 66 rue Jean-JacquesRousseau
Entity Address, City or Town Paris
Entity Address, Country FR
Entity Address, Postal Zip Code 75001
Entity Listings [Line Items]  
Title of 12(b) Security American depositary shares, each representing six Class A ordinary shares, par value US$0.0001 per share Class A ordinary shares
Trading Symbol AMTD
Security Exchange Name NYSE
Class A Ordinary Shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 254,923,518
Class B Ordinary Shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 233,526,979
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name Feridun Hamdullahpur
Entity Address, Address Line One 66 rue Jean-JacquesRousseau
Entity Address, City or Town Paris
Entity Address, Country FR
Entity Address, Postal Zip Code 75001
Entity Phone Fax Numbers [Line Items]  
City Area Code +33 (0)
Local Phone Number 1 4236 4597