Significant Accounting Policies (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jan. 01, 2024	Dec. 31, 2023
Accounting Policies [Line Items]
Interest income	[1]	$ 14,185	$ 12,126	$ 40,644	$ 33,019
Decrease in retained earnings		$ (102,911)		$ (102,911)			$ (97,996)
Cumulative Effect, Period of Adoption, Adjustment
Accounting Policies [Line Items]
Decrease in retained earnings						$ 60
Revision of Prior Period, Adjustment | Institutional Securities
Accounting Policies [Line Items]
Interest income			$ (1,179)		$ (3,204)

[1] Prior period amounts have been adjusted to conform with the current period presentation. See Note 2 for additional information.