v3.25.2
Interests in associates and joint ventures - Principal associates of HSBC (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Bank of Communications Co., Limited    
Disclosure of associates [line items]    
Carrying amount $ 21,348 $ 22,367
Fair value 13,145 11,631
Saudi Awwal Bank    
Disclosure of associates [line items]    
Carrying amount 5,245 5,027
Fair value $ 5,724 $ 5,705