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Cash and cash equivalents (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Cash and cash equivalents [abstract]      
Cash at bank available $ 2,673 $ 1,648  
Time deposits 1,906 1,132  
Money Market Funds 2,714 492  
Interest bearing securities 4,740 2,485  
Disclosure of financial assets [line items]      
Restricted cash, including margin deposits 2,093 999  
Cash and cash equivalents 14,126 6,757 $ 5,177
Collateral deposits related to trading activities $ 2,069 $ 425