v3.25.2
Investments in securities - Summary of Investments in Securities (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Investments In Securities [Line Items]    
Investments in securities $ 3,246 $ 3,362
At fair value    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 3,218 3,341
At fair value | Measured by reference to prices in active markets for identical assets    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 1,983 1,884
At fair value | Measured by reference to other observable inputs    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 92 158
At fair value | Measured using predominantly unobservable inputs    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 1,143 1,299
At cost    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 28 21
Equity securities    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 1,605 1,533
Equity securities at fair value through other comprehensive income 1,605 1,533
Debt securities    
Disclosure Of Investments In Securities [Line Items]    
Investments in securities 1,641 1,829
Equity securities at fair value through other comprehensive income 1,285 1,308
Debt securities at amortised cost 28 21
Debt securities at fair value through profit or loss $ 328 $ 500