Segment, Geographic and Revenue Information - Trading Revenues by Product Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue
Trading revenues	$ 3,331	$ 2,861	$ 10,911	$ 10,416
Interest rate
Disaggregation of Revenue
Trading revenues	1,070	(32)	1,930	844
Foreign exchange
Disaggregation of Revenue
Trading revenues	31	253	1,154	841
Equity
Disaggregation of Revenue
Trading revenues	1,872	1,903	5,869	5,631
Commodity and other
Disaggregation of Revenue
Trading revenues	279	538	1,288	2,079
Credit
Disaggregation of Revenue
Trading revenues	$ 79	$ 199	$ 670	$ 1,021