Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Cash Flows from Operating Activities
Net income		$ 964	$ 783
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Share-based compensation		56	50
Depreciation and amortization		83	73
Premium amortization, net, on available for sale and held to maturity securities		68	96
Other		33	36
Net change in:
Investments segregated and on deposit for regulatory purposes		(1,520)	853
Receivables from brokers, dealers, and clearing organizations		(61)	(245)
Receivables from brokerage clients		1,121	(595)
Other securities owned		18	39
Other assets		(15)	(16)
Payables to brokers, dealers, and clearing organizations		(229)	(325)
Payables to brokerage clients		(3,025)	(155)
Accrued expenses and other liabilities		(88)	(346)
Net cash provided by (used for) operating activities		(2,595)	248
Cash Flows from Investing Activities
Purchases of available for sale securities		(1,132)	(4,631)
Proceeds from sales of available for sale securities		10,652	0
Principal payments on available for sale securities		6,039	2,695
Purchases of held to maturity securities		(1,235)	(8,235)
Principal payments on held to maturity securities		3,996	3,548
Net increase in bank loans		81	74
Purchases of equipment, office facilities, and property		(139)	(122)
Purchases of Federal Home Loan Bank stock		(2)	0
Proceeds from sales of Federal Home Loan Bank stock		0	172
Other investing activities		25	(40)
Net cash provided by (used for) investing activities		18,285	(6,539)
Cash Flows from Financing Activities
Net change in bank deposits	[1]	(11,969)	20,528
Net change in short-term borrowings		0	(15,000)
Repayment of long-term debt		0	(627)
Dividends paid		(276)	(184)
Proceeds from stock options exercised		26	49
Other financing activities		(10)	(10)
Net cash provided by (used for) financing activities		(12,229)	4,756
Increase (Decrease) in Cash and Cash Equivalents, including Amounts Restricted		3,461	(1,535)
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Year		38,227	19,160
Cash and Cash Equivalents, including Amounts Restricted at End of Period	[2],[3]	41,688	17,625
Non-cash investing activity:
Securities purchased during the period but settled after period end		0	160
Other Supplemental Cash Flow Information		52	0
Cash paid during the period for:
Interest		336	169
Income taxes		23	3
Amounts included in the measurement of lease liabilities	[4]	32
Leased assets obtained in exchange for new operating lease liabilities	[4]	28
Transfers from other sweep features to bank sweep		$ 10,200	$ 24,900

[1] Includes transfers from other sweep features to bank sweep of $10.2 billion and $24.9 billion for the three months ended March 31, 2019 and 2018, respectively.

[2] For more information on the nature of restrictions on restricted cash and cash equivalents see Note 15.

[3] Reconciliation of cash, cash equivalents and amounts reported within the balance sheet

[4] These amounts are presented beginning in 2019 as part of the adoption of ASU 2016-02. See Notes 2 and 9 for additional information related to this adoption.