Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions		Mar. 31, 2024	Mar. 31, 2023
Reconciliation of cash, cash equivalents and amounts reported within the balance sheet
Cash and cash equivalents	[1]	$ 31,752	$ 49,162
Restricted cash and cash equivalents amounts included in cash and investments segregated and on deposit for regulatory purposes	[1]	25,921	20,268
Total cash and cash equivalents, including amounts restricted shown in the statement of cash flows	[1]	$ 57,673	$ 69,430

[1] For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 17.