Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities
Net income		$ 1,362	$ 1,603
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Share-based compensation		131	134
Depreciation and amortization		228	177
Amortization of acquired intangible assets		130	135
Provision (benefit) for deferred income taxes		(49)	3
Premium amortization, net, on available for sale and held to maturity securities		205	185
Other		116	132
Net change in:
Investments segregated and on deposit for regulatory purposes		716	13,690
Receivables from brokerage clients		(2,515)	3,395
Other assets		(95)	212
Payables to brokerage clients		(782)	(9,885)
Accrued expenses and other liabilities		(796)	(4)
Net cash provided by (used for) operating activities		(1,349)	9,777
Cash Flows from Investing Activities
Purchases of available for sale securities		(523)	0
Proceeds from sales of available for sale securities		1,189	1,051
Principal payments on available for sale securities		5,809	7,312
Principal payments on held to maturity securities		3,509	3,613
Net change in bank loans		(349)	521
Purchases of equipment, office facilities, and property		(149)	(159)
Purchases of FHLB stock		(180)	(1,439)
Proceeds from sales of FHLB stock		324	82
Purchases of Federal Reserve stock		(82)	0
Proceeds from sales of Federal Reserve stock		0	98
Other investing activities		(73)	(50)
Net cash provided by (used for) investing activities		9,475	11,029
Cash Flows from Financing Activities
Net change in bank deposits		(20,493)	(40,979)
Proceeds from FHLB borrowings		5,000	36,200
Repayments of FHLB borrowings		(7,400)	(3,000)
Proceeds from other short-term borrowings		4,050	3,657
Repayments of other short-term borrowings		(2,198)	(1,241)
Repayments of long-term debt		(3,260)	(808)
Redemption and repurchase of preferred stock		0	(467)
Dividends paid		(562)	(568)
Proceeds from stock options exercised		22	19
Repurchases of common stock and nonvoting common stock		0	(2,842)
Other financing activities		(85)	(67)
Net cash provided by (used for) financing activities		(24,926)	(10,096)
Increase (Decrease) in Cash and Cash Equivalents, including Amounts Restricted		(16,800)	10,710
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Year		74,473	58,720
Cash and Cash Equivalents, including Amounts Restricted at End of Period	[1]	57,673	69,430
Non-cash investing activity:
Changes in accrued equipment, office facilities, and property purchases		(27)	28
Cash paid during the period for:
Interest		1,957	923
Income taxes		41	40
Amounts included in the measurement of lease liabilities		61	63
Leased assets obtained in exchange for new operating lease liabilities		$ 20	$ 12

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