Derivative Instruments - Notional Amount of Derivative Contracts (Details) - USD ($) $ in Billions	Mar. 31, 2023	Dec. 31, 2022
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	$ 60,022	$ 49,476
Interest rate contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	41,199	33,166
Swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	30,520	24,491
Futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	3,861	2,636
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	3,387	3,047
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	3,431	2,992
Credit derivatives
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	1,506	1,132
Foreign exchange contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	14,556	12,747
Cross-currency swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	4,377	4,196
Spot, futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	8,465	7,017
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	867	775
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	847	759
Equity contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	2,227	1,944
Swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	674	618
Futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	107	110
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	748	636
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	698	580
Commodity contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	534	487
Swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	137	136
Spot, futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	145	136
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	142	117
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	$ 110	$ 98