Segment, Geographic and Revenue Information - Trading Revenues by Product Type (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue
Trading revenues	$ 4,131	$ 3,802	$ 8,983	$ 8,279
Interest rate
Disaggregation of Revenue
Trading revenues	1,495	1,209	3,321	2,577
Foreign exchange
Disaggregation of Revenue
Trading revenues	269	126	541	388
Equity
Disaggregation of Revenue
Trading revenues	2,323	2,403	4,627	4,615
Commodity and other
Disaggregation of Revenue
Trading revenues	481	335	1,076	874
Credit
Disaggregation of Revenue
Trading revenues	$ (437)	$ (271)	$ (582)	$ (175)