Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Cash Flows from Operating Activities
Net income	$ 1,321		$ 1,071		$ 928
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	(4)		(1)		16
Net impairment losses on securities	1	[1]	10	[1]	32	[1]
Stock-based compensation	115		116		105
Depreciation and amortization	199		202		196
(Benefit) Provision for deferred income taxes	(25)		(21)		5
Premium amortization, net, on securities available for sale and securities held to maturity	125		162		222
Other	(7)		15		26
Originations of loans held for sale					(441)
Proceeds from sales of loans held for sale					513
Net change in:
Cash and investments segregated and on deposit for regulatory purposes	2,772		4,916		(2,549)
Receivables from brokers, dealers, and clearing organizations	44		(175)		(104)
Receivables from brokerage clients	(1,725)		(496)		(2,391)
Other securities owned	1		119		(43)
Other assets	(30)		17		10
Payables to brokers, dealers, and clearing organizations	393		318		28
Payables to brokerage clients	(1,028)		(4,997)		4,950
Accrued expenses and other liabilities	196		400		(237)
Net cash provided by operating activities	2,348		1,656		1,266
Cash Flows from Investing Activities
Purchases of securities available for sale	(15,134)		(22,942)		(29,035)
Proceeds from sales of securities available for sale	6,556		6,167		3,336
Principal payments on securities available for sale	5,843		10,772		13,867
Purchases of securities held to maturity	(6,920)		(16,061)		(8,678)
Principal payments on securities held to maturity	2,687		3,895		5,453
Net increase in loans to banking clients	(1,016)		(1,634)		(978)
Purchase of equipment, office facilities, and property	(400)		(249)		(148)
Cash (paid) acquired in business acquisitions - net					(80)
Other investing activities	(11)		2		3
Net cash used for investing activities	(8,395)		(20,050)		(16,260)
Cash Flows from Financing Activities
Net change in deposits from banking clients	9,843		13,595		18,523
Issuance of commercial paper					300
Repayment of commercial paper			(300)
Issuance of long-term debt			275		350
Repayment of long-term debt	(6)		(6)		(732)
Premium paid on debt exchange					(19)
Net proceeds from preferred stock offerings					863
Dividends paid	(373)		(368)		(337)
Proceeds from stock options exercised and other	189		258		35
Other financing activities	29		5		(5)
Net cash provided by financing activities	9,682		13,459		18,978
Increase (Decrease) in Cash and Cash Equivalents	3,635		(4,935)		3,984
Cash and Cash Equivalents at Beginning of Year	7,728		12,663		8,679
Cash and Cash Equivalents at End of Year	11,363		7,728		12,663
Cash paid during the period for:
Interest	103		99		143
Income taxes	778		624		508
Non-cash investing activity:
Securities purchased during the year but settled after year end	143		81
Non-cash financing activity:
Exchange of Senior Notes					$ 256

[1] Net impairment losses on securities include total other-than-temporary impairment losses of $1 million, $2 million, and $15 million recognized in other comprehensive income, net of less than $1 million, $(8) million, and $(17) million reclassified from other comprehensive income in 2014, 2013, and 2012, respectively.