Derivative Instruments - Notional Amount of Derivative Contracts (Details) - USD ($) $ in Billions	Jun. 30, 2022	Dec. 31, 2021
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	$ 56,319	$ 49,735
Interest rate contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	38,623	32,801
Swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	29,009	24,075
Futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	3,631	2,520
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	3,024	3,018
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	2,959	3,188
Credit derivatives
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	1,097	1,053
Foreign exchange contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	13,927	13,259
Cross-currency swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	3,942	4,112
Spot, futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	8,242	7,679
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	874	741
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	869	727
Equity contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	2,041	2,003
Swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	594	612
Futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	147	139
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	677	654
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	623	598
Commodity contracts
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	631	619
Swaps
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	193	185
Spot, futures and forwards
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	197	188
Options | Written options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	126	135
Options | Purchased options
Notional amount of derivative contracts outstanding [Abstract]
Derivative notional amounts	$ 115	$ 111