v3.25.2
Fair values of financial instruments carried at fair value - Transfers between Level 1 and Level 2 fair values (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Trading liabilities    
Liabilities    
Transfers from Level 1 to Level 2 $ 94 $ 191
Transfers from Level 2 to Level 1 210 159
Designated at fair value    
Liabilities    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 0 0
Derivatives    
Liabilities    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 0 0
Financial investments    
Assets    
Transfers from Level 1 to Level 2 6,032 13,511
Transfers from Level 2 to Level 1 7,019 10,752
Trading assets    
Assets    
Transfers from Level 1 to Level 2 2,596 9,246
Transfers from Level 2 to Level 1 4,812 6,060
Designated and otherwise mandatorily measured at fair value    
Assets    
Transfers from Level 1 to Level 2 703 1,540
Transfers from Level 2 to Level 1 2,794 3,042
Derivatives    
Assets    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 $ 0 $ 0