Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011
Cash Flows from Operating Activities
Net income	$ 470		$ 481
Adjustments to reconcile net income to net cash (used for) provided by operating activities:
Provision for loan losses	4		5
Net impairment losses on securities	25	[1]	9	[1]
Stock-based compensation	54		47
Depreciation and amortization	96		68
Premium amortization, net, on securities available for sale and securities held to maturity	98		37
Other	1		(9)
Originations of loans held for sale	(435)		(809)
Proceeds from sales of loans held for sale	505		954
Net change in:
Cash and investments segregated and on deposit for regulatory purposes	3,311		(1,093)
Receivables from brokers, dealers, and clearing organizations	(86)		(47)
Receivables from brokerage clients	(885)		(413)
Other securities owned	168		(80)
Other assets	49		(1)
Payables to brokers, dealers, and clearing organizations	212		(33)
Payables to brokerage clients	(3,656)		3,056
Accrued expenses and other liabilities	(163)		(254)
Net cash (used for) provided by operating activities	(232)		1,918
Cash Flows from Investing Activities
Purchases of securities available for sale	(14,114)		(7,167)
Proceeds from sales of securities available for sale	1,323		450
Principal payments on securities available for sale	6,904		3,548
Purchases of securities held to maturity	(3,029)
Principal payments on securities held to maturity	2,566		1,926
Net increase in loans to banking clients	(62)		(753)
Purchase of equipment, office facilities, and property	(76)		(77)
Other investing activities			6
Net cash used for investing activities	(6,488)		(2,067)
Cash Flows from Financing Activities
Net change in deposits from banking clients	5,403		1,749
Repayment of long-term debt	(3)		(3)
Net proceeds from preferred stock offerings	864
Dividends paid	(154)		(145)
Proceeds from stock options exercised and other	20		73
Other financing activities			10
Net cash provided by financing activities	6,130		1,684
(Decrease) Increase in Cash and Cash Equivalents	(590)		1,535
Cash and Cash Equivalents at Beginning of Period	8,679		4,931
Cash and Cash Equivalents at End of Period	8,089		6,466
Cash paid during the period for:
Interest	74		86
Income taxes	$ 221		$ 325

[1] Net impairment losses on securities include total other-than-temporary impairment losses of $12 million and $11 million, net of $5 million and $9 million recognized in other comprehensive income, for the three months ended June 30, 2012 and 2011, respectively. Net impairment losses on securities include total other-than-temporary impairment losses of $14 million and $11 million, net of $(11) million and $2 million recognized in other comprehensive income, for the six months ended June 30, 2012 and 2011, respectively.