v3.25.2
Financial investments - Carrying amount of financial investments (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Financial investments measured at fair value through other comprehensive income    
Disclosure of financial assets [line items]    
Financial assets $ 381,746 $ 339,193
Financial investments measured at fair value through other comprehensive income | – treasury and other eligible bills    
Disclosure of financial assets [line items]    
Financial assets 117,390 112,705
Financial investments measured at fair value through other comprehensive income | – debt securities    
Disclosure of financial assets [line items]    
Financial assets 262,226 224,496
Financial investments measured at fair value through other comprehensive income | – equity securities    
Disclosure of financial assets [line items]    
Financial assets 1,697 1,569
Financial investments measured at fair value through other comprehensive income | – other instruments    
Disclosure of financial assets [line items]    
Financial assets 433 423
Debt instruments measured at amortised cost    
Disclosure of financial assets [line items]    
Financial assets 166,209 153,973
Debt instruments measured at amortised cost | – treasury and other eligible bills    
Disclosure of financial assets [line items]    
Financial assets 21,243 22,148
Debt instruments measured at amortised cost | – debt securities    
Disclosure of financial assets [line items]    
Financial assets 144,966 131,825
Financial investments    
Disclosure of financial assets [line items]    
Financial assets $ 547,955 $ 493,166