Regulatory Requirements - The Firm's Regulatory Capital and Capital Ratios (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Risk-based capital
CET1 capital	$ 71,791	$ 69,448
Tier 1 capital	80,513	78,183
Total capital	92,240	88,874
Total RWA	$ 472,102	$ 456,053
Risk-based capital ratio
Common Equity Tier 1 capital (as a percent)	0.152	0.152
Tier 1 capital (as a percent)	0.171	0.171
Total capital (as a percent)	0.195	0.195
Required Ratio
Common Equity Tier 1 capital (as a percent)	12.90%	12.90%
Tier 1 capital (as a percent)	0.144	0.144
Total capital (as a percent)	0.164	0.164
Leveraged-based capital
Adjusted average assets	$ 1,185,506	$ 1,159,626
Supplementary leverage exposure	$ 1,473,391	$ 1,429,552
Leveraged-based capital ratio
Tier 1 leverage (as a percent)	0.068	0.067
SLR (as a percent)	0.055	0.055
Required Ratio
Tier 1 leverage (as a percent)	0.040	0.040
SLR (as a percent)	5.00%	5.00%