Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Cash Flows from Operating Activities
Net income	[1]	$ 5,067		$ 7,183		$ 5,855
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Share-based compensation	[1]	320		366		254
Depreciation and amortization	[1]	804		652		549
Amortization of acquired intangible assets	[1]	534		596		615
Provision (benefit) for deferred income taxes	[1]	(478)		(18)		53
Premium amortization, net, on available for sale and held to maturity securities	[1]	830		1,375		2,346
Other	[1]	702		490		372
Net change in:
Investments segregated and on deposit for regulatory purposes	[1]	23,759		(874)		(3,398)
Receivables from brokerage clients	[1]	(2,135)		23,947		(26,168)
Other assets	[1]	(2,020)		99		(1,152)
Payables to brokerage clients	[1]	(12,652)		(28,233)		21,470
Accrued expenses and other liabilities	[1]	4,856		(3,526)		1,322
Net cash provided by (used for) operating activities	[1]	19,587		2,057		2,118
Cash Flows from Investing Activities
Purchases of available for sale securities	[1]	(1,487)		(51,009)		(171,732)
Proceeds from sales of available for sale securities	[1]	8,465		24,704		13,306
Principal payments on available for sale securities	[1]	36,508		49,944		94,912
Principal payments on held to maturity securities	[1]	15,461		15,712		0
Net change in bank loans	[1]	99		(5,788)		(10,845)
Purchases of equipment, office facilities, and property	[1]	(700)		(971)		(916)
Purchases of FHLB stock	[1]	(1,869)		(518)		0
Proceeds from sales of FHLB stock	[1]	1,344		19		0
Purchases of Federal Reserve stock	[1]	(221)		(106)		(245)
Proceeds from sales of Federal Reserve stock	[1]	98		197		0
Other investing activities	[1]	(287)		(136)		(143)
Net cash provided by (used for) investing activities	[1]	57,411		32,048		(75,663)
Cash Flows from Financing Activities
Net change in bank deposits	[1]	(76,771)		(77,054)		85,756
Proceeds from FHLB borrowings	[1]	49,200		12,504		0
Repayments of FHLB borrowings	[1]	(35,200)		(104)		0
Proceeds from other short-term borrowings	[1]	17,000		20,891		11,107
Repayments of other short-term borrowings	[1]	(15,104)		(21,100)		(6,255)
Issuances of long-term debt	[1]	6,097		2,971		7,036
Repayments of long-term debt	[1]	(831)		(1,036)		(1,822)
Repurchases of common stock and nonvoting common stock	[1]	(2,842)		(3,395)		0
Issuance of preferred stock, net	[1]	0		740		2,806
Redemption and repurchase of preferred stock	[1]	(467)		(1,000)		(600)
Dividends paid	[1]	(2,276)		(2,110)		(1,822)
Proceeds from stock options exercised	[1]	49		64		221
Other financing activities	[1]	(100)		(94)		(104)
Net cash provided by (used for) financing activities	[1]	(61,245)		(68,723)		96,323
Increase (Decrease) in Cash and Cash Equivalents, including Amounts Restricted	[1]	15,753		(34,618)		22,778
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Year	[1]	58,720	[2]	93,338	[2]	70,560
Cash and Cash Equivalents, including Amounts Restricted at End of Year	[1],[2]	74,473		58,720		93,338
Non-cash investing activity:
Securities transferred from available for sale to held to maturity, at fair value	[1]	0		188,555		0
Changes in accrued equipment, office facilities, and property purchases	[1]	104		(19)		125
Non-cash financing activity:
Common stock repurchased during the period but settled after period end	[1]	0		40		0
Cash paid during the period for:
Interest	[1]	5,623		1,355		501
Income taxes	[1]	1,620		2,130		2,053
Amounts included in the measurement of lease liabilities	[1]	255		228		212
Leased assets obtained in exchange for new operating lease liabilities	[1]	118		274		89
Leased assets obtained in exchange for new finance lease liabilities	[1]	$ 48		$ 4		$ 109

[1] Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

[2] For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 23.