Derivative Instruments - Notional Amount of Derivative Contracts (Details) - USD ($) $ in Billions	Mar. 31, 2026	Dec. 31, 2025
Notional amount of derivative contracts outstanding
Derivative notional amounts	$ 63,735	$ 50,642
Interest rate contracts
Notional amount of derivative contracts outstanding
Derivative notional amounts	37,745	29,536
Swaps
Notional amount of derivative contracts outstanding
Derivative notional amounts	24,128	19,056
Futures and forwards
Notional amount of derivative contracts outstanding
Derivative notional amounts	5,026	3,305
Options | Written options
Notional amount of derivative contracts outstanding
Derivative notional amounts	4,366	3,775
Options | Purchased options
Notional amount of derivative contracts outstanding
Derivative notional amounts	4,225	3,400
Credit derivatives
Notional amount of derivative contracts outstanding
Derivative notional amounts	1,949	1,381
Foreign exchange contracts
Notional amount of derivative contracts outstanding
Derivative notional amounts	19,556	15,595
Cross-currency swaps
Notional amount of derivative contracts outstanding
Derivative notional amounts	5,900	5,476
Spot, futures and forwards
Notional amount of derivative contracts outstanding
Derivative notional amounts	11,299	8,187
Options | Written options
Notional amount of derivative contracts outstanding
Derivative notional amounts	1,185	979
Options | Purchased options
Notional amount of derivative contracts outstanding
Derivative notional amounts	1,172	953
Equity contracts
Notional amount of derivative contracts outstanding
Derivative notional amounts	3,657	3,432
Swaps
Notional amount of derivative contracts outstanding
Derivative notional amounts	1,255	1,147
Futures and forwards
Notional amount of derivative contracts outstanding
Derivative notional amounts	246	196
Options | Written options
Notional amount of derivative contracts outstanding
Derivative notional amounts	1,158	1,118
Options | Purchased options
Notional amount of derivative contracts outstanding
Derivative notional amounts	998	971
Commodity contracts
Notional amount of derivative contracts outstanding
Derivative notional amounts	828	698
Swaps
Notional amount of derivative contracts outstanding
Derivative notional amounts	204	189
Spot, futures and forwards
Notional amount of derivative contracts outstanding
Derivative notional amounts	319	270
Options | Written options
Notional amount of derivative contracts outstanding
Derivative notional amounts	161	119
Options | Purchased options
Notional amount of derivative contracts outstanding
Derivative notional amounts	$ 144	$ 120