Wells Fargo & Company (WFC) 10-Q 6 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Oct. 31, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'	'WELLS FARGO & COMPANY/MN	'
Entity Central Index Key	'	'0000072971	'
Document Type	'10-Q	'	'
Document Period End Date	30-Sep-13	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'	'2013	'
Document Fiscal Period Focus	'	'Q3	'
Current Fiscal Year End Date	'	'--12-31	'
Entity Well-known Seasoned Issuer	'	'Yes	'
Entity Voluntary Filers	'	'No	'
Entity Current Reporting Status	'	'Yes	'
Entity Filer Category	'	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	'	5,267,598,642

Consolidated_Statement_of_Inco

Consolidated Statement of Income (Unaudited) (USD $)	3 Months Ended				9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Interest income	'		'		'		'
Trading assets	$331		$299		$998		$1,019
Securities available for sale	2,038		1,966		5,997		6,201
Mortgages held for sale	320		476		1,069		1,412
Loans held for sale	3		17		10		38
Loans	8,901		9,016		26,664		27,455
Other interest income	183		151		515		409
Total interest income	11,776		11,925		35,253		36,534
Interest expense:	'		'		'		'
Deposits	318		428		1,040		1,328
Short-term borrowings	9		19		46		55
Long-term debt	621		756		1,950		2,375
Other interest expense	80		60		220		189
Total interest expense	1,028		1,263		3,256		3,947
Net interest income	10,748		10,662		31,997		32,587
Provision for credit losses	75		1,591		1,946		5,386
Net interest income after provision for credit losses	10,673		9,071		30,051		27,201
Noninterest income	'		'		'		'
Service charges on deposit accounts	1,278		1,210		3,740		3,433
Trust and investment fees	3,276		2,954		9,972		8,691
Card fees	813		744		2,364		2,102
Other fees	1,098		1,097		3,221		3,326
Mortgage banking	1,608		2,807		7,204		8,570
Insurance	413		414		1,361		1,455
Net gains from trading activities	397		529		1,298		1,432
Net gains (losses) on debt securities available for sale	-6	[1]	3	[1]	-15	[1]	-65	[1]
Net gains from equity investments	502	[2]	164	[2]	818	[2]	770	[2]
Lease income	160		218		515		397
Other	191		411		640		1,440
Total noninterest income	9,730		10,551		31,118		31,551
Noninterest expense	'		'		'		'
Salaries	3,910		3,648		11,341		10,954
Commission and incentive compensation	2,401		2,368		7,604		7,139
Employee benefits	1,172		1,063		3,873		3,720
Equipment	471		510		1,417		1,526
Net occupancy	728		727		2,163		2,129
Core deposit and other intangibles	375		419		1,129		1,256
FDIC and other deposit assessments	214		359		765		1,049
Other	2,831		3,018		8,465		9,729
Total noninterest expense	12,102		12,112		36,757		37,502
Income before income tax expense	8,301		7,510		24,412		21,250
Income tax expense	2,618		2,480		7,901		7,179
Net income before noncontrolling interests	5,683		5,030		16,511		14,071
Less: Net income from noncontrolling interests	105		93		243		264
Wells Fargo net income	5,578		4,937		16,268		13,807
Less: Preferred stock dividends and other	261		220		748		665
Wells Fargo net income applicable to common stock	$5,317		$4,717		$15,520		$13,142
Per share information	'		'		'		'
Earnings per common share	$1		$0.89		$2.93		$2.48
Diluted earnings per common share	$0.99		$0.88		$2.89		$2.45
Dividends declared per common share	$0.30		$0.22		$0.85		$0.66
Average common shares outstanding	5,295.30		5,288.10		5,293		5,292.70
Diluted average common shares outstanding	5,381.70		5,355.60		5,374.70		5,355.70
[1]	Total other-than-temporary impairment (OTTI) gains were $(13) million and $(101) million for third quarter 2013 and 2012, respectively. Of total OTTI, losses of $23 million and $36 million were recognized in earnings, and gains of $(36) million and $(137) million were recognized as non-credit-related OTTI in other comprehensive income for third quarter 2013 and 2012, respectively. Total OTTI losses (gains) were $36 million and $(19) million for the first nine months of 2013 and 2012, respectively. Of total OTTI, losses of $128 million and $163 million were recognized in earnings, and gains of $(92) million and $(182) million were recognized as non-credit-related OTTI in other comprehensive income for the first nine months of 2013 and 2012, respectively.
[2]	Includes OTTI losses of $37 million and $36 million for third quarter 2013 and 2012, respectively, and $121 million and $94 million for the first nine months of 2013 and 2012, respectively.

Consolidated_Statement_of_Inco1

Consolidated Statement of Income (Parenthetical) (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Noninterest income	'	'	'	'
Total OTTI losses (gains) recorded on debt securities	($13)	($101)	$36	($19)
Total OTTI recorded as part of gross realized losses	39	39	153	172
Total recorded directly to OCI for non-credit-related impairment	-36	-137	-92	-182
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Equity Securities and Nonmarketable Equity Securities	37	36	121	94
Debt Securities [Member]	'	'	'	'
Noninterest income	'	'	'	'
Total OTTI losses (gains) recorded on debt securities	-13	-101	36	-19
Total OTTI recorded as part of gross realized losses	23	36	128	163
Total recorded directly to OCI for non-credit-related impairment	($36)	($137)	($92)	($182)

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Wells Fargo net income	$5,578	$4,937	$16,268	$13,807
Securities available for sale:	'	'	'	'
Net unrealized gains (losses) arising during the period, Before tax	842	2,892	-5,922	5,597
Reclassification of net gains to net income, Before tax	-114	-41	-197	-290
Derivatives and hedging activities:	'	'	'	'
Net unrealized gains (losses) arising during the period, Before tax	-7	24	-10	63
Reclassification of net gains on cash flow hedges to net income, Before tax	-69	-89	-225	-295
Defined benefit plans adjustments:	'	'	'	'
Net actuarial gains (losses) arising during the period, Before tax	297	-1	1,075	-18
Amortization of net actuarial loss, settlements and other costs to net income, Before tax	59	35	221	111
Foreign currency translation adjustments:	'	'	'	'
Net unrealized losses arising during the period, Before tax	12	45	-27	-1
Reclassification of net (gains) losses to net income, Before tax	3	0	-12	-10
Other comprehensive income (loss), Before tax	1,023	2,865	-5,097	5,157
Income tax (expense) benefit related to other comprehensive income	-265	-1,057	2,002	-1,923
Other comprehensive income (loss), Net of tax	758	1,808	-3,095	3,234
Less: Other comprehensive income from noncontrolling interests	266	2	266	6
Wells Fargo other comprehensive income (loss), net of tax	492	1,806	-3,361	3,228
Wells Fargo comprehensive income	6,070	6,743	12,907	17,035
Comprehensive income from noncontrolling interests	371	95	509	270
Total comprehensive income	6,441	6,838	13,416	17,305
Total Wells Fargo stockholders' equity [Member]	'	'	'	'
Wells Fargo net income	'	'	16,268	13,807
Foreign currency translation adjustments:	'	'	'	'
Wells Fargo other comprehensive income (loss), net of tax	'	'	-3,361	3,228
Noncontrolling interests [Member]	'	'	'	'
Foreign currency translation adjustments:	'	'	'	'
Less: Other comprehensive income from noncontrolling interests	'	'	$266	$6

Consolidated_Statement_of_Comp1

Consolidated Statement of Comprehensive Income (Alternative) (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Income and Comprehensive Income [Abstract]	'	'	'	'
Total comprehensive income	$6,441	$6,838	$13,416	$17,305
Comprehensive income from noncontrolling interests	371	95	509	270
Wells Fargo comprehensive income	$6,070	$6,743	$12,907	$17,035

Consolidated_Balance_Sheet_Una

Consolidated Balance Sheet (Unaudited) (USD $)	Sep. 30, 2013		Dec. 31, 2012
In Millions, unless otherwise specified
Assets	'		'
Cash and due from banks	$18,928		$21,860
Federal funds sold, securities purchased under resale agreements and other short-term investments	182,036		137,313
Trading assets	60,203		57,482
Securities available for sale	259,399		235,199
Mortgages held for sale (includes $23,209 and $42,305 carried at fair value)	25,395		47,149
Loans held for sale (includes $2 and $6 carried at fair value)	204		110
Loans (includes $6,051 and $6,206 carried at fair value)	812,325		799,574
Allowance for loan losses	-15,159		-17,060
Net loans	797,166		782,514
Mortgage servicing rights:	'		'
Measured at fair value	14,501		11,538
Amortized	1,204		1,160
Premises and equipment, net	9,120		9,428
Goodwill	25,637		25,637
Other assets (includes $911 and $0 carried at fair value)	94,262		93,578
Total assets	1,488,055	[1]	1,422,968	[1]
Liabilities	'		'
Noninterest-bearing deposits	279,911		288,207
Interest-bearing deposits	761,960		714,628
Total deposits	1,041,871		1,002,835
Short-term borrowings	53,851		57,175
Accrued expenses and other liabilities	72,308		76,668
Long-term debt (includes $0 and $1 carried at fair value)	151,212		127,379
Total liabilities	1,319,242	[2]	1,264,057	[2]
Wells Fargo stockholders' equity:	'		'
Preferred stock	15,549		12,883
Common stock - $1-2/3 par value, authorized 9,000,000,000 shares; issued 5,481,811,474 shares and 5,481,811,474 shares	9,136		9,136
Additional paid-in capital	60,188		59,802
Retained earnings	88,625		77,679
Cumulative other comprehensive income	2,289		5,650
Treasury stock - 208,075,732 shares and 215,497,298 shares	-7,290		-6,610
Unearned ESOP shares	-1,332		-986
Total Wells Fargo stockholders' equity	167,165		157,554
Noncontrolling interests	1,648		1,357
Total equity	168,813		158,911
Total liabilities and equity	$1,488,055		$1,422,968
[1]	Our consolidated assets at September 30, 2013 and December 31, 2012, include the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Cash and due from banks, $171 million and $260 million; Trading assets, $186 million and $114 million; Securities available for sale, $1.4 billion and $2.8 billion; Mortgages held for sale, $66 million and $469 million; Net loans, $8.0 billion and $10.6 billion; Other assets, $348 million and 457 million, and Total assets, $10.2 billion and $14.6 billion, respectively.
[2]	Our consolidated liabilities at September 30, 2013 and December 31, 2012, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $23 million and $0 million; Accrued expenses and other liabilities, $103 million and $134 million; Long-term debt, $2.5 billion and $3.5 billion; and Total liabilities, $2.6 billion and $3.6 billion, respectively.

Consolidated_Balance_Sheet_Par

Consolidated Balance Sheet (Parenthetical) (Unaudited) (USD $)	Sep. 30, 2013		Dec. 31, 2012
Assets	'		'
Cash and Due from Banks	$18,928,000,000		$21,860,000,000
Trading assets	60,203,000,000		57,482,000,000
Securities available for sale	259,399,000,000		235,199,000,000
Mortgages held for sale	25,395,000,000		47,149,000,000
Mortgages held for sale, carried at fair value	23,209,000,000		42,305,000,000
Loans held for sale, carried at fair value	2,000,000		6,000,000
Loans, carried at fair value	6,051,000,000		6,206,000,000
Net loans	797,166,000,000		782,514,000,000
Other assets	94,262,000,000		93,578,000,000
Other assets, carried at fair value	911,000,000		0
Total assets	1,488,055,000,000	[1]	1,422,968,000,000	[1]
Liabilities	'		'
Short-term borrowings	53,851,000,000		57,175,000,000
Accrued expenses and other liabilities	72,308,000,000		76,668,000,000
Long-term debt	151,212,000,000		127,379,000,000
Long-term debt, carried at fair value	0		1,000,000
Total liabilities	1,319,242,000,000	[2]	1,264,057,000,000	[2]
Wells Fargo stockholders' equity:	'		'
Common stock, par value	$1.67		$1.67
Common stock, shares issued	5,481,811,474		5,481,811,474
Common stock, shares authorized	9,000,000,000		9,000,000,000
Treasury stock, shares	208,075,732		215,497,298
VIEs that we consolidate [Member]	'		'
Assets	'		'
Cash and Due from Banks	171,000,000		260,000,000
Trading assets	186,000,000		114,000,000
Securities available for sale	1,377,000,000		2,772,000,000
Mortgages held for sale	66,000,000		469,000,000
Net loans	8,007,000,000		10,553,000,000
Other assets	348,000,000		457,000,000
Total assets	10,155,000,000		14,625,000,000
Liabilities	'		'
Short-term borrowings	23,000,000		2,059,000,000
Accrued expenses and other liabilities	807,000,000		901,000,000
Long-term debt	2,571,000,000		3,483,000,000
Total liabilities	3,401,000,000		6,443,000,000
Vies That We Consolidate No Recourse [Member]	'		'
Liabilities	'		'
Short-term borrowings	23,000,000		0
Accrued expenses and other liabilities	103,000,000		134,000,000
Long-term debt	2,500,000,000		3,500,000,000
Total liabilities	$2,600,000,000		$3,600,000,000
[1]	Our consolidated assets at September 30, 2013 and December 31, 2012, include the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Cash and due from banks, $171 million and $260 million; Trading assets, $186 million and $114 million; Securities available for sale, $1.4 billion and $2.8 billion; Mortgages held for sale, $66 million and $469 million; Net loans, $8.0 billion and $10.6 billion; Other assets, $348 million and 457 million, and Total assets, $10.2 billion and $14.6 billion, respectively.
[2]	Our consolidated liabilities at September 30, 2013 and December 31, 2012, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $23 million and $0 million; Accrued expenses and other liabilities, $103 million and $134 million; Long-term debt, $2.5 billion and $3.5 billion; and Total liabilities, $2.6 billion and $3.6 billion, respectively.

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Equity (Unaudited) (USD $)		Total	Total Wells Fargo stockholders' equity [Member]	Preferred stock [Member]	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Cumulative other comprehensive income [Member]	Treasury stock [Member]	Unearned Employee Stock Option Plan Shares [Member]	Noncontrolling interests [Member]
In Millions, except Share data
Beginning Balance at Dec. 31, 2010		'	'	'	'	'	'	'	'	'	'
Cumulative effect of fair value election for certain residential mortgage servicing rights		$2	$2	'	'	'	$2	'	'	'	'
Adjusted beginning balance at Jan. 1, 2012		141,689	140,243	'	'	'	64,387	'	'	'	'
Ending Balance at Dec. 31, 2011		141,687	140,241	11,431	8,931	55,957	64,385	3,207	-2,744	-926	1,446
Shares, Beginning Balance at Dec. 31, 2011		'	'	10,450,690	5,262,611,636	'	'	'	'	'	'
Net Income Attributable to Parent		13,807	13,807	'	'	'	13,807	'	'	'	'
Net Income Attributable to Noncontrolling interests		264	'	'	'	'	'	'	'	'	264
Net income		14,071	'	'	'	'	'	'	'	'	'
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent		3,228	3,228	'	'	'	'	3,228	'	'	'
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest		6	'	'	'	'	'	'	'	'	6
Other comprehensive income (loss), Net of tax		3,234	'	'	'	'	'	'	'	'	'
Noncontrolling interests, adjustments to Additional Paid in Capital		'	-6	'	'	-6	'	'	'	'	'
Noncontrolling interests		'	'	'	'	'	'	'	'	'	-336
Total change in noncontrolling interests		-342	'	'	'	'	'	'	'	'	'
Common stock, issued		2,000	2,000	'	133	1,867	'	'	'	'	'
Common stock, shares issued		'	'	'	80,013,209	'	'	'	'	'	'
Common stock repurchased		-2,597	-2,597	'	'	-150	'	'	-2,447	'	'
Common stock repurchased, shares		'	'	'	-77,521,553	'	'	'	'	'	'
Preferred stock issued to ESOP		0	0	940	'	88	'	'	'	-1,028	'
Preferred stock issued to ESOP, shares		'	'	940,000	'	'	'	'	'	'	'
Preferred stock released by ESOP		838	838	'	'	-75	'	'	'	913	'
Preferred stock converted to common shares		0	0	-838	41	797	'	'	'	'	'
Preferred stock converted to common shares, shares		'	'	-837,591	24,521,583	'	'	'	'	'	'
Preferred stock, issued		742	742	750	'	-8	'	'	'	'	'
Preferred stock, shares issued		'	'	30,000	'	'	'	'	'	'	'
Common stock dividends		-3,500	-3,500	'	'	'	-3,541	'	'	'	'
Common stock dividends, adjustment to Additional Paid in Capital		'	'	'	'	41	'	'	'	'	'
Preferred stock dividends		-659	-659	'	'	'	-659	'	'	'	'
Tax benefit from stock incentive compensation		198	198	'	'	198	'	'	'	'	'
Stock incentive compensation expense		465	465	'	'	465	'	'	'	'	'
Net change in deferred compensation and related plans		-80	-80	'	'	-85	'	'	5	'	'
Net change		14,370	14,436	852	174	3,132	9,607	3,228	-2,442	-115	-66
Net change, shares		'	'	132,409	27,013,239	'	'	'	'	'	'
Ending Balance at Sep. 30, 2012		156,059	154,679	12,283	9,105	59,089	73,994	6,435	-5,186	-1,041	1,380
Shares, Ending Balance at Sep. 30, 2012		'	'	10,583,099	5,289,624,875	'	'	'	'	'	'
Beginning Balance at Dec. 31, 2012		158,911	157,554	12,883	9,136	59,802	77,679	5,650	-6,610	-986	1,357
Shares, Beginning Balance at Dec. 31, 2012		'	'	10,558,865	5,266,314,176	'	'	'	'	'	'
Net Income Attributable to Parent		16,268	16,268	'	'	'	16,268	'	'	'	'
Net Income Attributable to Noncontrolling interests		243	'	'	'	'	'	'	'	'	243
Net income		16,511	'	'	'	'	'	'	'	'	'
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent		-3,361	-3,361	'	'	'	'	-3,361	'	'	'
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest		266	'	'	'	'	'	'	'	'	266
Other comprehensive income (loss), Net of tax		-3,095	'	'	'	'	'	'	'	'	'
Noncontrolling interests, adjustments to Additional Paid in Capital		'	0	'	'	0	'	'	'	'	'
Noncontrolling interests		'	'	'	'	'	'	'	'	'	-218
Total change in noncontrolling interests		-218	'	'	'	'	'	'	'	'	'
Common stock, issued		2,380	2,380	'	'	18	-10	'	2,372	'	'
Common stock, shares issued		'	'	'	78,607,760	'	'	'	'	'	'
Common stock repurchased	[1]	-3,978	-3,978	'	'	-200	'	'	-3,778	'	'
Common stock repurchased, shares	[1]	'	'	'	-94,144,984	'	'	'	'	'	'
Preferred stock issued to ESOP		0	0	1,200	'	108	'	'	'	-1,308	'
Preferred stock issued to ESOP, shares		'	'	1,200,000	'	'	'	'	'	'	'
Preferred stock released by ESOP		884	884	'	'	-78	'	'	'	962	'
Preferred stock converted to common shares		0	0	-884	'	164	'	'	720	'	'
Preferred stock converted to common shares, shares		'	'	-883,752	22,958,790	'	'	'	'	'	'
Preferred stock, issued		2,317	2,317	2,350	'	-33	'	'	'	'	'
Preferred stock, shares issued		'	'	94,000	'	'	'	'	'	'	'
Common stock dividends		-4,504	-4,504	'	'	'	-4,565	'	'	'	'
Common stock dividends, adjustment to Additional Paid in Capital		'	'	'	'	61	'	'	'	'	'
Preferred stock dividends		-747	-747	'	'	'	-747	'	'	'	'
Tax benefit from stock incentive compensation		229	229	'	'	229	'	'	'	'	'
Stock incentive compensation expense		585	585	'	'	585	'	'	'	'	'
Net change in deferred compensation and related plans		-462	-462	'	'	-468	'	'	6	'	'
Net change		9,902	9,611	2,666	0	386	10,946	-3,361	-680	-346	291
Net change, shares		'	'	410,248	7,421,566	'	'	'	'	'	'
Ending Balance at Sep. 30, 2013		$168,813	$167,165	$15,549	$9,136	$60,188	$88,625	$2,289	($7,290)	($1,332)	$1,648
Shares, Ending Balance at Sep. 30, 2013		'	'	10,969,113	5,273,735,742	'	'	'	'	'	'
[1]	For the nine months ended September 30, 2013, includes $400 million related to a private forward repurchase transaction entered into in September 2013 that is expected to settle in fourth quarter 2013 for an estimated 9.8 million shares of common stock. See Note 1 for additional information.

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Equity (Parenthetical) (Unaudited) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2013
Scenario, Forecast [Member]	'
Consolidated Statement of Changes in Equity (Textuals) [Abstract]	'
Common stock repurchased, shares	9,800,000
Private Forward Repurchase Transaction [Member]	'
Consolidated Statement of Changes in Equity (Textuals) [Abstract]	'
Private forward repurchase contract	400

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:	'	'
Net income (loss) before noncontrolling interests	$16,511	$14,071
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Provision for credit losses	1,946	5,386
Changes in fair value of MSRs, MHFS and LHFS carried at fair value	-2,402	-1,496
Depreciation and amortization	2,508	2,083
Other net losses (gains)	-7,441	724
Stock-based compensation	1,535	1,303
Excess tax benefits related to stock incentive compensation	-232	-193
Originations of MHFS	-274,293	-372,204
Proceeds from sales of and principal collected on mortgages originated for sale	265,249	317,386
Originations of LHFS	0	-10
Proceeds from sales of and principal collected on LHFS	373	8,792
Purchases of LHFS	-244	-7,221
Net change in:	'	'
Trading assets	39,133	86,127
Deferred income taxes	2,802	202
Accrued interest receivable	-215	-3
Accrued interest payable	10	81
Other assets, net	-2,962	-4,499
Other accrued expenses and liabilities, net	940	-340
Net cash provided by operating activities	43,218	50,189
Cash flows from investing activities:	'	'
Net change in Federal funds sold, securities purchased under resale agreements and other short term investments	-46,419	-56,075
Securities available for sale:	'	'
Sales proceeds	2,591	4,969
Prepayments and maturities	40,476	44,592
Purchases	-78,368	-49,703
Nonmarketable equity investments:	'	'
Sales proceeds	1,846	1,218
Purchases	-2,552	-1,389
Loans:	'	'
Loans originated by banking subsidiaries, net of principal collected	-26,050	-29,308
Proceeds from sales (including participations) of loans originated for investment	5,894	4,601
Purchases (including participations) of loans	-10,022	-7,431
Principal collected on nonbank entities' loans	16,202	17,719
Loans originated by nonbank entities	-13,949	-16,122
Net cash paid for acquisitions	0	-4,319
Proceeds from sales of foreclosed assets	6,256	7,427
Changes in MSRs from purchases and sales	471	159
Other, net	869	-2,114
Net cash used by investing activities	-102,755	-85,776
Cash flows from financing activities:	'	'
Net change in deposits	39,036	32,166
Net change in short-term borrowings	-3,335	2,481
Long-term debt:	'	'
Proceeds from issuance	44,483	24,999
Repayment	-18,727	-22,273
Preferred stock:	'	'
Proceeds from issuance	2,317	742
Cash dividends paid	-813	-726
Common stock:	'	'
Proceeds from issuance	1,935	2,000
Repurchased	-3,978	-2,597
Cash dividends paid	-4,409	-3,500
Excess tax benefits related to stock incentive compensation	232	193
Net change in noncontrolling interests	-207	-352
Other, net	71	0
Net cash provided by financing activities	56,605	33,133
Net change in cash and due from banks	-2,932	-2,454
Cash and due from banks at beginning of period	21,860	19,440
Cash and due from banks at end of period	18,928	16,986
Supplemental cash flow disclosures:	'	'
Cash paid for interest	3,246	3,866
Cash paid for income taxes	$5,543	$4,701

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Summary of Significant Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Note 1: Summary of Significant Accounting Policies
	Wells Fargo & Company is a diversified financial services company. We provide banking, insurance, trust and investments, mortgage banking, investment banking, retail banking, brokerage, and consumer and commercial finance through banking stores, the internet and other distribution channels to consumers, businesses and institutions in all 50 states, the District of Columbia, and in foreign countries. When we refer to “Wells Fargo,” “the Company,” “we,” “our” or “us,” we mean Wells Fargo & Company and Subsidiaries (consolidated). Wells Fargo & Company (the Parent) is a financial holding company and a bank holding company. We also hold a majority interest in a real estate investment trust, which has publicly traded preferred stock outstanding.
	Our accounting and reporting policies conform with U.S. generally accepted accounting principles (GAAP) and practices in the financial services industry. For discussion of our significant accounting policies, see Note 1 in our Annual Report on Form 10-K for the year ended December 31, 2012 (2012 Form 10-K). There were no material changes to these policies in the first nine months of 2013. To prepare the financial statements in conformity with GAAP, management must make estimates based on assumptions about future economic and market conditions (for example, unemployment, market liquidity, real estate prices, etc.) that affect the reported amounts of assets and liabilities at the date of the financial statements and income and expenses during the reporting period and the related disclosures. Although our estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition. Management has made significant estimates in several areas, including allowance for credit losses and purchased credit-impaired (PCI) loans (Note 5), valuations of residential mortgage servicing rights (MSRs) (Notes 7 and 8) and financial instruments (Note 13), liability for mortgage loan repurchase losses (Note 8) and income taxes. Actual results could differ from those estimates.
	These unaudited interim financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the periods presented. These adjustments are of a normal recurring nature, unless otherwise disclosed in this Form 10-Q. The results of operations in the interim financial statements do not necessarily indicate the results that may be expected for the full year. The interim financial information should be read in conjunction with our 2012 Form 10-K.
	Accounting Standards Adopted in 2013
	In first quarter 2013, we adopted the following new accounting guidance:
	Accounting Standards Update (ASU or Update) 2011-11, Disclosures about Offsetting Assets and Liabilities;
	ASU 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities; and
	ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.
	ASU 2011-11 expands the disclosure requirements for certain financial instruments and derivatives that are subject to enforceable master netting agreements or similar arrangements. The disclosures are required regardless of whether the instruments have been offset (or netted) in the statement of financial position. Under ASU 2011-11, companies must describe the nature of offsetting arrangements and provide quantitative information about those agreements, including the gross and net amounts of financial instruments that are recognized in the statement of financial position. In January 2013, the FASB issued ASU 2013-01, which clarifies the scope of ASU 2011-11 by limiting the disclosures to derivatives, repurchase agreements, and securities lending transactions to the extent they are subject to an enforceable master netting or similar arrangement. We adopted this guidance in first quarter 2013 with retrospective application. These Updates did not affect our consolidated financial results since they amend only the disclosure requirements for offsetting financial instruments. See Notes 10 and 12 for the new disclosures.
	ASU 2013-02 requires companies to disclose the effect on net income line items from significant amounts reclassified out of accumulated other comprehensive income and entirely into net income. If reclassifications are partially or entirely capitalized on the balance sheet, then companies must provide a cross-reference to disclosures that provide information about the effect of the reclassifications. We adopted this guidance in first quarter 2013 with retrospective application. This Update did not affect our consolidated financial results as it amends only the disclosure requirements for accumulated other comprehensive income. See Note 17 for expanded disclosures on reclassification adjustments.
	In third quarter 2013, we adopted the following new accounting guidance:
	ASU 2013-10, Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes
	ASU 2013-10 permits the Fed Funds Effective Swap Rate (Overnight Index Swap Rate) to be used as a U.S. benchmark interest rate for hedge accounting purposes, in addition to LIBOR and U.S. Treasury. The Update also removes the restriction on using different benchmark rates for similar hedges. Our adoption of this guidance in third quarter 2013 with prospective application did not affect our consolidated financial statements.
	Private Share Repurchases
	From time to time we enter into private forward repurchase transactions with unrelated third parties to complement our open-market common stock repurchase strategies, to allow us to manage our share repurchases in a manner consistent with our capital plans, currently submitted under the 2013 Comprehensive Capital Analysis and Review (CCAR), and to provide an economic benefit to the Company.
	Our payments to the counterparties for these contracts are recorded in permanent equity in the quarter paid and are not subject to re-measurement. The classification of the up-front payments as permanent equity assures that we have appropriate repurchase timing consistent with our 2013 capital plan, which contemplated a fixed dollar amount available per quarter for share repurchases pursuant to Federal Reserve Board (FRB) supervisory guidance. In return, the counterparty agrees to deliver a variable number of shares based on a per share discount to the volume-weighted average stock price over the contract period. There are no scenarios where the contracts would not either physically settle in shares or allow us to choose the settlement method.
	In September 2013 we entered into a private forward repurchase contract and paid $400 million to an unrelated third party. In return, the counterparty agreed to deliver a variable number of shares based on a per share discount to the volume-weighted average stock price over the contract period. This contract expires in fourth quarter 2013. The amount we paid to the counterparty meets accounting requirements to be treated as a permanent equity reduction.
	Supplemental Cash Flow Information Noncash activities are presented below, including information on transfers affecting MHFS, LHFS, and MSRs.
		Nine months
		ended September 30,
	(in millions)		2013	2012
	Transfers from loans to securities available for sale	$	297	921
	Trading assets retained from securitization of MHFS		39,963	68,905
	Capitalization of MSRs from sale of MHFS		3,068	3,860
	Transfers from MHFS to foreclosed assets		160	172
	Transfers from loans to MHFS		6,199	5,523
	Transfers from loans to LHFS		207	118
	Transfers from loans to foreclosed assets (1)		5,835	6,938
	Changes in consolidations (deconsolidations) of variable interest entities:
	Trading assets		1,950	-
	Securities available for sale		-	-40
	Loans		-2,268	-295
	Long-term debt		-342	-338
	Includes $4.5 billion and $4.8 billion in transfers of government insured/guaranteed loans for the nine months ended September 30, 2013 and 2012, respectively.
	Subsequent Events We have evaluated the effects of events that have occurred subsequent to period end September 30, 2013, and there have been no material events that would require recognition in our third quarter 2013 consolidated financial statements or disclosure in the Notes to the financial statements.

Business_Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Business Combinations	'
	Note 2: Business Combinations
	We regularly explore opportunities to acquire financial services companies and businesses. Generally, we do not make a public announcement about an acquisition opportunity until a definitive agreement has been signed. For information on additional contingent consideration related to acquisitions, which is considered to be a guarantee, see Note 10.
	We did not complete any acquisitions of businesses in the first nine months of 2013. Additionally, we had no pending business combinations as of September 30, 2013.

Federal_Funds_Sold_Securities_

Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments	9 Months Ended
	Sep. 30, 2013
Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Abstract]	'
Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments	'
	Note 3: Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments
	The following table provides the detail of federal funds sold, securities purchased under short-term resale agreements (generally less than one year) and other short-term investments. The majority of interest-earning deposits at September 30, 2013 and December 31, 2012, were held at the Federal Reserve.
				Sept. 30,	Dec. 31,
	(in millions)			2013	2012
	Federal funds sold and securities
		purchased under resale agreements	$	27,093	33,884
	Interest-earning deposits			153,464	102,408
	Other short-term investments			1,479	1,021
		Total	$	182,036	137,313
	We have classified securities purchased under long-term resale agreements (generally one year or more), which totaled $11.2 billion and $9.5 billion at September 30, 2013 and December 31, 2012, respectively, in loans. For additional information on the collateral we receive from other entities under resale agreements and securities borrowings, see the “Offsetting of Resale and Repurchase Agreements and Securities Borrowing and Lending Agreements” section of Note 10.

Securities_Available_for_Sale

Securities Available for Sale	9 Months Ended
	Sep. 30, 2013
Securities Available for Sale [Abstract]	'
Securities available for sale	'
	Note 4: Securities Available for Sale
	The following table provides the amortized cost and fair value by major categories of securities available for sale carried at fair value. The net unrealized gains (losses) are reported on an after-tax basis as a component of cumulative OCI. There were no securities classified as held to maturity as of the periods presented.
										Gross	Gross
										unrealized	unrealized	Fair
	(in millions)								Cost	gains	losses	value
	30-Sep-13
	Securities of U.S. Treasury and federal agencies							$	6,647	19	-260	6,406
	Securities of U.S. states and political subdivisions								42,172	1,013	-892	42,293
	Mortgage-backed securities:
		Federal agencies							118,793	2,421	-2,251	118,963
		Residential							12,116	1,450	-42	13,524
		Commercial							17,704	1,253	-152	18,805
			Total mortgage-backed securities						148,613	5,124	-2,445	151,292
	Corporate debt securities								20,372	975	-149	21,198
	Collateralized loan and other debt obligations (1)								17,261	602	-87	17,776
	Other (2)								16,428	461	-35	16,854
				Total debt securities					251,493	8,194	-3,868	255,819
	Marketable equity securities:
		Perpetual preferred securities							1,730	239	-71	1,898
		Other marketable equity securities							383	1,306	-7	1,682
				Total marketable equity securities					2,113	1,545	-78	3,580
					Total			$	253,606	9,739	-3,946	259,399
	31-Dec-12
	Securities of U.S. Treasury and federal agencies							$	7,099	47	-	7,146
	Securities of U.S. states and political subdivisions								37,120	2,000	-444	38,676
	Mortgage-backed securities:
		Federal agencies							92,855	4,434	-4	97,285
		Residential							14,178	1,802	-49	15,931
		Commercial							18,438	1,798	-268	19,968
			Total mortgage-backed securities						125,471	8,034	-321	133,184
	Corporate debt securities								20,120	1,282	-69	21,333
	Collateralized loan and other debt obligations (1)								12,726	557	-95	13,188
	Other (2)								18,410	553	-76	18,887
				Total debt securities					220,946	12,473	-1,005	232,414
	Marketable equity securities:
		Perpetual preferred securities							1,935	281	-40	2,176
		Other marketable equity securities							402	216	-9	609
				Total marketable equity securities					2,337	497	-49	2,785
					Total			$	223,283	12,970	-1,054	235,199
	Includes collateralized debt obligations with a cost basis and fair value of $533 million and $700 million, respectively, at September 30, 2013, and $556 million and $644 million, respectively, at December 31, 2012.
	Included in the “Other” category are asset-backed securities collateralized by auto leases or loans and cash reserves with a cost basis and fair value of $5.1 billion and $5.2 billion, respectively, at September 30, 2013, and $5.9 billion each at December 31, 2012. Also included in the "Other" category are asset-backed securities collateralized by home equity loans with a cost basis and fair value of $594 million and $831 million, respectively, at September 30, 2013, and $695 million and $918 million, respectively, at December 31, 2012. The remaining balances primarily include asset-backed securities collateralized by credit cards.
	Gross Unrealized Losses and Fair Value
	The following table shows the gross unrealized losses and fair value of securities in the securities available-for-sale portfolio by length of time that individual securities in each category had been in a continuous loss position. Debt securities on which we have taken credit-related OTTI write-downs are categorized as being “less than 12 months” or “12 months or more” in a continuous loss position based on the point in time that the fair value declined to below the cost basis and not the period of time since the credit-related OTTI write-down.
								Less than 12 months			12 months or more			Total
								Gross			Gross			Gross
							unrealized		Fair	unrealized		Fair	unrealized		Fair
	(in millions)							losses	value		losses	value		losses	value
	30-Sep-13
	Securities of U.S. Treasury and federal agencies						$	-260	5,862		-	-		-260	5,862
	Securities of U.S. states and political subdivisions							-528	10,893		-364	3,889		-892	14,782
	Mortgage-backed securities:
		Federal agencies						-2,245	52,043		-6	514		-2,251	52,557
		Residential						-19	1,263		-23	249		-42	1,512
		Commercial						-31	2,838		-121	1,898		-152	4,736
			Total mortgage-backed securities					-2,295	56,144		-150	2,661		-2,445	58,805
	Corporate debt securities							-100	2,854		-49	252		-149	3,106
	Collateralized loan and other debt obligations							-46	5,653		-41	356		-87	6,009
	Other							-19	3,007		-16	225		-35	3,232
				Total debt securities				-3,248	84,413		-620	7,383		-3,868	91,796
	Marketable equity securities:
		Perpetual preferred securities						-37	441		-34	306		-71	747
		Other marketable equity securities						-7	47		-	-		-7	47
				Total marketable equity securities				-44	488		-34	306		-78	794
				Total		$	-3,292	84,901		-654	7,689		-3,946	92,590
31-Dec-12
Securities of U.S. Treasury and federal agencies						$	-	-		-	-		-	-
Securities of U.S. states and political subdivisions							-55	2,709		-389	4,662		-444	7,371
Mortgage-backed securities:
	Federal agencies						-4	2,247		-	-		-4	2,247
	Residential						-4	261		-45	1,564		-49	1,825
	Commercial						-6	491		-262	2,564		-268	3,055
		Total mortgage-backed securities					-14	2,999		-307	4,128		-321	7,127
Corporate debt securities							-14	1,217		-55	305		-69	1,522
Collateralized loan and other debt obligations							-2	1,485		-93	798		-95	2,283
Other							-11	2,153		-65	1,010		-76	3,163
			Total debt securities				-96	10,563		-909	10,903		-1,005	21,466
Marketable equity securities:
	Perpetual preferred securities						-3	116		-37	538		-40	654
	Other marketable equity securities						-9	48		-	-		-9	48
			Total marketable equity securities				-12	164		-37	538		-49	702
				Total		$	-108	10,727		-946	11,441		-1,054	22,168
We do not have the intent to sell any securities included in the previous table. For debt securities included in the table, we have concluded it is more likely than not that we will not be required to sell prior to recovery of the amortized cost basis. We have assessed each security with gross unrealized losses for credit impairment. For debt securities, we evaluate, where necessary, whether credit impairment exists by comparing the present value of the expected cash flows to the securities' amortized cost basis. For equity securities, we consider numerous factors in determining whether impairment exists, including our intent and ability to hold the securities for a period of time sufficient to recover the cost basis of the securities.
For complete descriptions of the factors we consider when analyzing debt securities for impairment, see Note 1 and Note 5 in our 2012 Form 10-K. There have been no material changes to our methodologies for assessing impairment in the first nine months of 2013.
The following table shows the gross unrealized losses and fair value of debt and perpetual preferred securities available for sale by those rated investment grade and those rated less than investment grade, according to their lowest credit rating by Standard & Poor's Rating Services (S&P) or Moody's Investors Service (Moody's). Credit ratings express opinions about the credit quality of a security. Securities rated investment grade, that is those rated BBB- or higher by S&P or Baa3 or higher by Moody's, are generally considered by the rating agencies and market participants to be low credit risk. Conversely, securities rated below investment grade, labeled as “speculative grade” by the rating agencies, are considered to be distinctively higher credit risk than investment grade securities. We have also included securities not rated by S&P or Moody's in the table below based on the internal credit grade of the securities (used for credit risk management purposes) equivalent to the credit rating assigned by major credit agencies. The unrealized losses and fair value of unrated securities categorized as investment grade based on internal credit grades were $23 million and $2.0 billion, respectively, at September 30, 2013, and $19 million and $2.0 billion, respectively, at December 31, 2012. If an internal credit grade was not assigned, we categorized the security as non-investment grade.
								Investment grade			Non-investment grade
								Gross			Gross
								unrealized	Fair		unrealized	Fair
(in millions)								losses	value		losses	value
30-Sep-13
Securities of U.S. Treasury and federal agencies							$	-260	5,862		-	-
Securities of U.S. states and political subdivisions								-840	14,278		-52	504
Mortgage-backed securities:
	Federal agencies							-2,251	52,557		-	-
	Residential							-2	201		-40	1,311
	Commercial							-58	3,909		-94	827
		Total mortgage-backed securities						-2,311	56,667		-134	2,138
Corporate debt securities								-89	2,184		-60	922
Collateralized loan and other debt obligations								-64	5,809		-23	200
Other								-22	3,050		-13	182
			Total debt securities					-3,586	87,850		-282	3,946
Perpetual preferred securities								-71	747		-	-
				Total			$	-3,657	88,597		-282	3,946
31-Dec-12
Securities of U.S. Treasury and federal agencies							$	-	-		-	-
Securities of U.S. states and political subdivisions								-378	6,839		-66	532
Mortgage-backed securities:
	Federal agencies							-4	2,247		-	-
	Residential							-3	78		-46	1,747
	Commercial							-31	2,110		-237	945
		Total mortgage-backed securities						-38	4,435		-283	2,692
Corporate debt securities								-19	1,112		-50	410
Collateralized loan and other debt obligations								-49	2,065		-46	218
Other								-49	3,034		-27	129
			Total debt securities					-533	17,485		-472	3,981
Perpetual preferred securities								-40	654		-	-
				Total			$	-573	18,139		-472	3,981
Contractual Maturities
The following table shows the remaining contractual maturities and contractual yields (taxable-equivalent basis) of debt securities available for sale. The remaining contractual principal maturities for MBS do not consider prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature.
												Remaining contractual maturity
								Weighted-							After one year				After five years
							Total	average			Within one year				through five years				through ten years					After ten years
(in millions)							amount		yield			Amount	Yield			Amount	Yield			Amount	Yield			Amount	Yield
30-Sep-13
Securities of U.S. Treasury
	and federal agencies					$	6,406		1.67	%	$	134	1.25	%	$	700	1.42	%	$	5,572	1.71	%	$	-	-	%
Securities of U.S. states and
	political subdivisions						42,293		5.23			4,844	1.84			8,461	2.2			3,177	5.32			25,811	6.85
Mortgage-backed securities:
	Federal agencies						118,963		3.37			-	-			435	2.71			553	4.84			117,975	3.37
	Residential						13,524		4.24			-	-			-	-			452	1.92			13,072	4.32
	Commercial						18,805		5.36			-	-			52	3.33			100	2.77			18,653	5.38
		Total mortgage-backed
			securities				151,292		3.7			-	-			487	2.78			1,105	3.46			149,700	3.7
Corporate debt securities							21,198		4.21			4,944	2.39			8,547	3.77			6,371	5.86			1,336	5.78
Collateralized loan and
	other debt obligations						17,776		1.53			40	0.25			915	0.67			7,185	1.14			9,636	1.9
Other							16,854		1.74			1,693	1.5			8,097	1.77			2,544	1.75			4,520	1.78
			Total debt securities
				at fair value		$	255,819		3.66	%	$	11,655	2.01	%	$	27,207	2.51	%	$	25,954	3.09	%	$	191,003	4.01	%
31-Dec-12
Securities of U.S. Treasury
	and federal agencies					$	7,146		1.59	%	$	376	0.43	%	$	661	1.24	%	$	6,109	1.7	%	$	-	-	%
Securities of U.S. states and
	political subdivisions						38,676		5.29			1,861	2.61			11,620	2.18			3,380	5.51			21,815	7.15
Mortgage-backed securities:
	Federal agencies						97,285		3.82			1	5.4			106	4.87			1,144	3.41			96,034	3.83
	Residential						15,931		4.38			-	-			-	-			569	2.06			15,362	4.47
	Commercial						19,968		5.33			-	-			78	3.69			101	2.84			19,789	5.35
		Total mortgage-backed
			securities				133,184		4.12			1	5.4			184	4.37			1,814	2.95			131,185	4.13
Corporate debt securities							21,333		4.26			1,037	4.29			12,792	3.19			6,099	6.14			1,405	5.88
Collateralized loan and
	other debt obligations						13,188		1.35			44	0.96			1,246	0.71			7,376	1.01			4,522	2.08
Other							18,887		1.85			1,715	1.14			9,589	1.75			3,274	2.11			4,309	2.14
			Total debt securities
				at fair value		$	232,414		3.91	%	$	5,034	2.28	%	$	36,092	2.37	%	$	28,052	3.07	%	$	163,236	4.44	%
Realized Gains and Losses
The following table shows the gross realized gains and losses on sales and OTTI write-downs related to the securities available-for-sale portfolio, which includes marketable equity securities, as well as net realized gains and losses on nonmarketable equity investments (see Note 6 – Other Assets).
						Quarter			Nine months
					ended Sept. 30,				ended Sept. 30,
(in millions)						2013	2012		2013	2012
Gross realized gains					$	161	110		371	527
Gross realized losses						-8	-29		-21	-65
OTTI write-downs						-39	-39		-153	-172
	Net realized gains from securities available for sale					114	42		197	290
Net realized gains from nonmarketable equity investments						382	125		606	415
		Net realized gains from debt securities and equity investments			$	496	167		803	705
Other-Than-Temporary Impairment
The following table shows the detail of total OTTI write-downs included in earnings for debt securities, marketable securities and nonmarketable equity investments.
								Quarter			Nine months
								ended Sept. 30,			ended Sept. 30,
(in millions)								2013	2012		2013	2012
OTTI write-downs included in earnings
	Debt securities:
		U.S. states and political subdivisions					$	-	-		-	9
		Mortgage-backed securities:
			Federal agencies					-	-		1	-
			Residential					16	17		53	65
			Commercial					6	8		47	41
		Corporate debt securities						-	5		2	9
		Collateralized loan and other debt obligations						-	-		-	1
		Other debt securities						1	6		25	38
				Total debt securities				23	36		128	163
	Equity securities:
		Marketable equity securities:
			Perpetual preferred securities					-	2		-	8
			Other marketable equity securities					16	1		25	1
				Total marketable equity securities				16	3		25	9
					Total securities available for sale			39	39		153	172
		Nonmarketable equity investments						21	33		96	85
						Total OTTI write-downs included in earnings	$	60	72		249	257
Other-Than-Temporarily Impaired Debt Securities
The following table shows the detail of OTTI write-downs on debt securities available for sale included in earnings and the related changes in OCI for the same securities.
						Quarter ended Sept. 30,				Nine months ended Sept. 30,
(in millions)							2013	2012		2013	2012
OTTI on debt securities
	Recorded as part of gross realized losses:
		Credit-related OTTI				$	23	36		79	160
		Intent-to-sell OTTI					-	-		49	3
			Total recorded as part of gross realized losses				23	36		128	163
	Changes to OCI for increase (decrease) in non-credit related OTTI (1):
		U.S. states and political subdivisions					-	-		-	-7
		Residential mortgage-backed securities					-2	-85		-18	-148
		Commercial mortgage-backed securities					-33	-56		-74	-62
		Corporate debt securities					-	6		-	5
		Collateralized loan and other debt obligations					-	-1		-1	-
		Other debt securities					-1	-1		1	30
			Total changes to OCI for non-credit-related OTTI				-36	-137		-92	-182
				Total OTTI losses (gains) recorded on debt securities		$	-13	-101		36	-19
Represents amounts recorded to OCI for impairment, due to factors other than credit, on debt securities that have also had credit-related OTTI write-downs during the period. Increases represent initial or subsequent non-credit-related OTTI on debt securities. Decreases represent partial to full reversal of impairment due to recoveries in the fair value of securities due to factors other than credit.
The following table presents a rollforward of the credit loss component recognized in earnings for debt securities we still own (referred to as “credit-impaired” debt securities). The credit loss component of the amortized cost represents the difference between the present value of expected future cash flows discounted using the security's current effective interest rate and the amortized cost basis of the security prior to considering credit losses. OTTI recognized in earnings for credit-impaired debt securities is presented as additions and is classified into one of two components based upon whether the current period is the first time the debt security was credit-impaired (initial credit impairment) or if the debt security was previously credit-impaired (subsequent credit impairments). The credit loss component is reduced if we sell, intend to sell or believe we will be required to sell previously credit-impaired debt securities. Additionally, the credit loss component is reduced if we receive or expect to receive cash flows in excess of what we previously expected to receive over the remaining life of the credit-impaired debt security, the security matures or is fully written down.
Changes in the credit loss component of credit-impaired debt securities that were recognized in earnings and related to securities that we do not intend to sell were:
						Quarter ended Sept. 30,				Nine months ended Sept. 30,
(in millions)							2013	2012		2013	2012
Credit loss component, beginning of period						$	1,218	1,314		1,289	1,272
Additions:
	Initial credit impairments						6	14		11	50
	Subsequent credit impairments						17	22		68	110
		Total additions					23	36		79	160
Reductions:
	For securities sold or matured						-30	-100		-141	-170
	For recoveries of previous credit impairments (1)						-7	-5		-23	-17
		Total reductions					-37	-105		-164	-187
Credit loss component, end of period						$	1,204	1,245		1,204	1,245
Recoveries of previous credit impairments result from increases in expected cash flows subsequent to credit loss recognition. Such recoveries are reflected prospectively as interest yield adjustments using the effective interest method.
To determine credit impairment losses for asset-backed securities (e.g., residential MBS, commercial MBS), we estimate expected future cash flows of the security by estimating the expected future cash flows of the underlying collateral and applying those collateral cash flows, together with any credit enhancements such as subordinated interests owned by third parties, to the security. The expected future cash flows of the underlying collateral are determined using the remaining contractual cash flows adjusted for future expected credit losses (which consider current delinquencies and nonperforming assets (NPAs), future expected default rates and collateral value by vintage and geographic region) and prepayments. The expected cash flows of the security are then discounted at the security's current effective interest rate to arrive at a present value amount. Total credit impairment losses on residential MBS that we do not intend to sell are shown in the table below. The table also presents a summary of the significant inputs considered in determining the measurement of the credit loss component recognized in earnings for residential MBS.
						Quarter ended Sept. 30,					Nine months ended Sept. 30,
($ in millions)							2013		2012		2013	2012
Credit impairment losses on residential MBS
	Non-investment grade					$	16		17		53	65
Significant inputs (non-agency – non-investment grade MBS)
Expected remaining life of loan loss rate (1):
	Range (2)						14-Jan	%	Mar-36		20-Jan	Jan-44
	Credit impairment loss rate distribution (3):
		0 - 10% range					78		95		91	71
		10 - 20% range					22		5		8	13
		20 - 30% range					-		-		1	6
		Greater than 30%					-		-		-	10
	Weighted average loss rate (4)						5		7		6	9
Current subordination levels (5):
	Range (2)						0-3		0-9		0-41	0-57
	Weighted average (4)						-		3		-	2
Prepayment speed (annual CPR (6)):
	Range (2)						18-Jun		23-Sep		20-Apr	29-May
	Weighted average (4)						16		16		16	15
Represents future expected credit losses on each pool of loans underlying respective securities expressed as a percentage of the total current outstanding loan balance of the pool for each respective security.
Represents the range of inputs/assumptions based upon the individual securities within each category.
Represents distribution of credit impairment losses recognized in earnings categorized based on range of expected remaining life of loan losses. For example 78% of credit impairment losses recognized in earnings for the quarter ended September 30, 2013, had expected remaining life of loan loss assumptions of 0 to 10%.
Calculated by weighting the relevant input/assumption for each individual security by current outstanding amortized cost basis of the security.
Represents current level of credit protection provided by tranches subordinate to our security holdings (subordination), expressed as a percentage of total current underlying loan balance.
Constant prepayment rate.
Total credit impairment losses on commercial MBS that we do not intend to sell were $6 million and $7 million for the quarters ended September 30, 2013 and 2012, respectively, and $21 million and $41 million for the nine months ended September 30, 2013 and 2012, respectively. Significant inputs considered in determining the credit impairment losses for commercial MBS are the expected remaining life of loan loss rates and current subordination levels. Prepayment activity on commercial MBS does not significantly impact the determination of their credit impairment because, unlike residential MBS, commercial MBS experience significantly lower prepayments due to certain contractual restrictions, impacting the borrower's ability to prepay the mortgage. The expected remaining life of loan loss rates for commercial MBS with credit impairment losses ranged from 4% to 14% and 3% to 14% for the quarters ended September 30, 2013 and 2012, respectively, and 4% to 14% and 3% to 17% for the nine months ended September 30, 2013 and 2012, respectively. The current subordination level ranges were 4% to 12% and 0% to 12% for the quarters ended September 30, 2013 and 2012, respectively, and 0% to 21% and 0% to 12% for the nine months ended September 30, 2013 and 2012, respectively.

Loans_and_Allowance_for_Credit

Loans and Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2013
Loans and Allowance for Credit Losses [Abstract]	'
Loans and Allowance for Credit Losses	'
	Note 5: Loans and Allowance for Credit Losses
	The following table presents total loans outstanding by portfolio segment and class of financing receivable. Outstanding balances include a total net reduction of $6.5 billion and $7.4 billion at September 30, 2013 and December 31, 2012, respectively, for unearned income, net deferred loan fees, and unamortized discounts and premiums. Outstanding balances also include PCI loans net of any remaining purchase accounting adjustments. Information about PCI loans is presented separately in the “Purchased Credit-Impaired Loans” section of this Note.
								Sept. 30,		Dec. 31,
	(in millions)							2013		2012
	Commercial:
		Commercial and industrial					$	191,738		187,759
		Real estate mortgage						105,540		106,340
		Real estate construction						16,413		16,904
		Lease financing						11,688		12,424
		Foreign (1)						46,666		37,771
			Total commercial					372,045		361,198
	Consumer:
		Real estate 1-4 family first mortgage						254,924		249,900
		Real estate 1-4 family junior lien mortgage						67,675		75,465
		Credit card						25,448		24,640
		Automobile						49,693		45,998
		Other revolving credit and installment						42,540		42,373
			Total consumer					440,280		438,376
				Total loans			$	812,325		799,574
	Substantially all of our foreign loan portfolio is commercial loans. Loans are classified as foreign if the borrower's primary address is outside of the United States.
	Loan Purchases, Sales, and Transfers
	The following table summarizes the proceeds paid or received for purchases and sales of loans and transfers from loans held for investment to mortgages/loans held for sale at lower of cost or market. This loan activity primarily includes loans purchased or sales of whole loan or participating interests, whereby we receive or transfer a portion of a loan after origination. The table excludes PCI loans and loans recorded at fair value, including loans originated for sale because their loan activity normally does not impact the allowance for credit losses.
							2013					2012
	(in millions)						Commercial		Consumer	Total		Commercial	Consumer	Total
	Quarter ended September 30,
	Loans - held for investment:
		Purchases (1)					$	6,226	-	6,226		1,021	-	1,021
		Sales						-1,177	-24	-1,201		-796	-164	-960
	Transfers to MHFS/LHFS (1)							-65	-3	-68		-41	-5	-46
	Nine months ended September 30,
	Loans - held for investment:
		Purchases (1)					$	9,374	581	9,955		10,196	167	10,363
		Sales						-4,989	-470	-5,459		-3,731	-487	-4,218
	Transfers to MHFS/LHFS (1)							-198	-15	-213		-59	-10	-69
	The “Purchases” and “Transfers to MHFS/LHFS" categories exclude activity in government insured/guaranteed loans. As servicer, we are able to buy delinquent insured/guaranteed loans out of the Government National Mortgage Association (GNMA) pools. These loans have different risk characteristics from the rest of our consumer portfolio, whereby this activity does not impact the allowance for loan losses in the same manner because the loans are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). On a net basis, such purchases net of transfers to MHFS were $2.4 billion and $1.5 billion for the third quarter 2013 and 2012, respectively, and $5.2 billion and $7.0 billion for the first nine months ended of 2013 and 2012, respectively.
	Commitments to Lend
	A commitment to lend is a legally binding agreement to lend funds to a customer, usually at a stated interest rate, if funded, and for specific purposes and time periods. We generally require a fee to extend such commitments. Certain commitments are subject to loan agreements with covenants regarding the financial performance of the customer or borrowing base formulas on an ongoing basis that must be met before we are required to fund the commitment. We may reduce or cancel consumer commitments, including home equity lines and credit card lines, in accordance with the contracts and applicable law.
	When we make commitments, we are exposed to credit risk. The maximum credit risk for these commitments will generally be lower than the contractual amount because a significant portion of these commitments are expected to expire without being used by the customer. In addition, we manage the potential risk in commitments to lend by limiting the total amount of commitments, both by individual customer and in total, by monitoring the size and maturity structure of these commitments and by applying the same credit standards for these commitments as for all of our credit activities. In some cases, we participate a portion of our interest in a commitment to other financial institutions in an arrangement that reduces our credit risk to the borrower. We also originate multipurpose lending commitments under which borrowers have the option to draw on the facility for different purposes in one of several forms, including a standby letter of credit. See Note 10 for information on standby letters of credit.
	For certain loans and commitments to lend, we may require collateral or a guarantee, based on our assessment of a customer's credit risk. We may require various types of collateral, including commercial and consumer real estate, autos, other short-term liquid assets such as accounts receivable or inventory and long-lived asset, such as equipment and other business assets. Collateral requirements for each loan or commitment may vary according to the specific credit underwriting, including terms and structure of loans funded immediately or under a commitment to fund at a later date.
	The contractual amount of our unfunded credit commitments, net of participations and net of all standby and commercial letters of credit issued under the terms of these commitments, is summarized by portfolio segment and class of financing receivable in the following table:
							Sept. 30,		Dec. 31,
	(in millions)							2013	2012
	Commercial:
		Commercial and industrial					$	231,576	215,626
		Real estate mortgage						5,913	6,165
		Real estate construction						10,180	9,109
		Foreign						13,660	8,423
			Total commercial					261,329	239,323
	Consumer:
		Real estate 1-4 family first mortgage						33,845	42,657
		Real estate 1-4 family
			junior lien mortgage					48,145	50,934
		Credit card						77,187	70,960
		Other revolving credit and installment						23,165	19,791
			Total consumer					182,343	184,342
				Total unfunded
					credit commitments		$	443,672	423,665
	Allowance for Credit Losses
	The allowance for credit losses consists of the allowance for loan losses and the allowance for unfunded credit commitments. Changes in the allowance for credit losses were:
								Quarter ended Sept. 30,				Nine months ended Sept. 30,
	(in millions)							2013		2012		2013		2012
	Balance, beginning of period						$	16,618		18,646		17,477		19,668
	Provision for credit losses							75		1,591		1,946		5,386
Interest income on certain impaired loans (1)							-63		-76		-209		-245
Loan charge-offs:
	Commercial:
		Commercial and industrial					-151		-285		-516		-1,004
		Real estate mortgage					-44		-100		-153		-296
		Real estate construction					-6		-41		-18		-181
		Lease financing					-3		-5		-30		-18
		Foreign					-4		-35		-23		-81
			Total commercial				-208		-466		-740		-1,580
	Consumer:
		Real estate 1-4 family first mortgage					-303		-719		-1,170		-2,319
		Real estate 1-4 family junior lien mortgage					-345		-1,095		-1,287		-2,672
		Credit card					-239		-255		-771		-842
		Automobile					-153		-152		-443		-462
		Other revolving credit and installment					-191		-184		-558		-565
			Total consumer				-1,231		-2,405		-4,229		-6,860
				Total loan charge-offs			-1,439		-2,871		-4,969		-8,440
Loan recoveries:
	Commercial:
		Commercial and industrial					93		154		288		368
		Real estate mortgage					64		46		149		115
		Real estate construction					23		40		114		96
		Lease financing					3		4		13		15
		Foreign					6		5		23		26
			Total commercial				189		249		587		620
	Consumer:
		Real estate 1-4 family first mortgage					61		46		171		112
		Real estate 1-4 family junior lien mortgage					70		59		204		184
		Credit card					32		43		95		148
		Automobile					75		77		247		285
		Other revolving credit and installment					37		39		119		138
			Total consumer				275		264		836		867
				Total loan recoveries			464		513		1,423		1,487
					Net loan charge-offs (2)		-975		-2,358		-3,546		-6,953
Allowances related to business combinations/other							-8		-		-21		-53
Balance, end of period						$	15,647		17,803		15,647		17,803
Components:
	Allowance for loan losses					$	15,159		17,385		15,159		17,385
	Allowance for unfunded credit commitments						488		418		488		418
		Allowance for credit losses (3)				$	15,647		17,803		15,647		17,803
Net loan charge-offs (annualized) as a percentage of average total loans (2)							0.48	%	1.21		0.59		1.2
Allowance for loan losses as a percentage of total loans (3)							1.87		2.22		1.87		2.22
Allowance for credit losses as a percentage of total loans (3)							1.93		2.27		1.93		2.27
Certain impaired loans with an allowance calculated by discounting expected cash flows using the loan's effective interest rate over the remaining life of the loan recognize reductions in the allowance as interest income.
For PCI loans, charge-offs are only recorded to the extent that losses exceed the purchase accounting estimates.
The allowance for credit losses includes $22 million and $160 million at September 30, 2013 and 2012, respectively, related to PCI loans acquired from Wachovia. Loans acquired from Wachovia are included in total loans net of related purchase accounting net write-downs.
The following table summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments.
							2013				2012
(in millions)				Commercial		Consumer	Total		Commercial	Consumer	Total
Quarter ended September 30,
Balance, beginning of period				$	5,896	10,722	16,618		6,159	12,487	18,646
	Provision for credit losses				65	10	75		-108	1,699	1,591
	Interest income on certain impaired loans				-11	-52	-63		-22	-54	-76
	Loan charge-offs				-208	-1,231	-1,439		-466	-2,405	-2,871
	Loan recoveries				189	275	464		249	264	513
		Net loan charge-offs			-19	-956	-975		-217	-2,141	-2,358
	Allowance related to business combinations/other				-8	-	-8		-	-	-
Balance, end of period				$	5,923	9,724	15,647		5,812	11,991	17,803
Nine months ended September 30,
Balance, beginning of period				$	5,714	11,763	17,477		6,358	13,310	19,668
	Provision for credit losses				429	1,517	1,946		490	4,896	5,386
	Interest income on certain impaired loans				-46	-163	-209		-76	-169	-245
	Loan charge-offs				-740	-4,229	-4,969		-1,580	-6,860	-8,440
	Loan recoveries				587	836	1,423		620	867	1,487
		Net loan charge-offs			-153	-3,393	-3,546		-960	-5,993	-6,953
	Allowance related to business combinations/other				-21	-	-21		-	-53	-53
Balance, end of period				$	5,923	9,724	15,647		5,812	11,991	17,803
The following table disaggregates our allowance for credit losses and recorded investment in loans by impairment methodology.
					Allowance for credit losses				Recorded investment in loans
(in millions)					Commercial	Consumer	Total		Commercial	Consumer	Total
30-Sep-13
Collectively evaluated (1)				$	4,566	5,473	10,039		363,050	392,594	755,644
Individually evaluated (2)					1,340	4,246	5,586		6,018	22,829	28,847
PCI (3)					17	5	22		2,977	24,857	27,834
	Total			$	5,923	9,724	15,647		372,045	440,280	812,325
31-Dec-12
Collectively evaluated (1)				$	3,951	7,524	11,475		349,035	389,559	738,594
Individually evaluated (2)					1,675	4,210	5,885		8,186	21,826	30,012
PCI (3)					88	29	117		3,977	26,991	30,968
	Total			$	5,714	11,763	17,477		361,198	438,376	799,574
Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans.
Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans.
Represents the allowance and related loan carrying value determined in accordance with ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality (formerly SOP 03-3) and pursuant to amendments by ASU 2010-20 regarding allowance for PCI loans.
Credit Quality
We monitor credit quality by evaluating various attributes and utilize such information in our evaluation of the appropriateness of the allowance for credit losses. The following sections provide the credit quality indicators we most closely monitor. The credit quality indicators are generally based on information as of our financial statement date, with the exception of updated Fair Isaac Corporation (FICO) scores and updated loan-to-value (LTV)/combined LTV (CLTV), which are obtained at least quarterly. Generally, these indicators are updated in the second month of each quarter, with updates no older than June 30, 2013. See the “Purchased Credit-Impaired Loans” section of this Note for credit quality information on our PCI portfolio.
Commercial Credit Quality Indicators In addition to monitoring commercial loan concentration risk, we manage a consistent process for assessing commercial loan credit quality. Generally, commercial loans are subject to individual risk assessment using our internal borrower and collateral quality ratings. Our ratings are aligned to Pass and Criticized categories. The Criticized category includes Special Mention, Substandard, and Doubtful categories which are defined by bank regulatory agencies.
The following table provides a breakdown of outstanding commercial loans by risk category. Of the $14.6 billion in criticized commercial real estate (CRE) loans, $3.0 billion has been placed on nonaccrual status and written down to net realizable collateral value. CRE loans have a high level of monitoring in place to manage these assets and mitigate loss exposure.
					Commercial		Real	Real
						and	estate	estate	Lease
(in millions)						industrial	mortgage	construction	financing	Foreign	Total
30-Sep-13
By risk category:
	Pass				$	175,435	91,622	13,730	11,207	43,118	335,112
	Criticized					16,093	12,499	2,078	481	2,805	33,956
		Total commercial loans (excluding PCI)				191,528	104,121	15,808	11,688	45,923	369,068
Total commercial PCI loans (carrying value)						210	1,419	605	-	743	2,977
			Total commercial loans		$	191,738	105,540	16,413	11,688	46,666	372,045
31-Dec-12
By risk category:
	Pass				$	169,293	87,183	12,224	11,787	35,380	315,867
	Criticized					18,207	17,187	3,803	637	1,520	41,354
		Total commercial loans (excluding PCI)				187,500	104,370	16,027	12,424	36,900	357,221
Total commercial PCI loans (carrying value)						259	1,970	877	-	871	3,977
			Total commercial loans		$	187,759	106,340	16,904	12,424	37,771	361,198
The following table provides past due information for commercial loans, which we monitor as part of our credit risk management practices.
					Commercial		Real	Real
						and	estate	estate	Lease
(in millions)					industrial		mortgage	construction	financing	Foreign	Total
30-Sep-13
By delinquency status:
	Current-29 DPD and still accruing				$	190,267	101,046	15,019	11,634	45,870	363,836
	30-89 DPD and still accruing					327	539	271	37	5	1,179
	90+ DPD and still accruing					125	40	1	-	1	167
Nonaccrual loans						809	2,496	517	17	47	3,886
		Total commercial loans (excluding PCI)				191,528	104,121	15,808	11,688	45,923	369,068
Total commercial PCI loans (carrying value)						210	1,419	605	-	743	2,977
			Total commercial loans		$	191,738	105,540	16,413	11,688	46,666	372,045
31-Dec-12
By delinquency status:
	Current-29 DPD and still accruing				$	185,614	100,317	14,861	12,344	36,837	349,973
	30-89 DPD and still accruing					417	503	136	53	12	1,121
	90+ DPD and still accruing					47	228	27	-	1	303
Nonaccrual loans						1,422	3,322	1,003	27	50	5,824
		Total commercial loans (excluding PCI)				187,500	104,370	16,027	12,424	36,900	357,221
Total commercial PCI loans (carrying value)						259	1,970	877	-	871	3,977
			Total commercial loans		$	187,759	106,340	16,904	12,424	37,771	361,198
Consumer Credit Quality Indicators We have various classes of consumer loans that present unique risks. Loan delinquency, FICO credit scores and LTV for loan types are common credit quality indicators that we monitor and utilize in our evaluation of the appropriateness of the allowance for credit losses for the consumer portfolio segment.
Many of our loss estimation techniques used for the allowance for credit losses rely on delinquency-based models; therefore, delinquency is an important indicator of credit quality and the establishment of our allowance for credit losses. The following table provides the outstanding balances of our consumer portfolio by delinquency status.
						Real estate	Real estate			Other
						1-4 family	1-4 family			revolving
						first	junior lien	Credit		credit and
(in millions)						mortgage	mortgage	card	Automobile	installment	Total
30-Sep-13
By delinquency status:
	Current-29 DPD				$	189,734	65,911	24,836	48,821	31,115	360,417
	30-59 DPD					2,775	453	196	654	144	4,222
	60-89 DPD					1,209	265	131	155	107	1,867
	90-119 DPD					648	180	112	57	71	1,068
	120-179 DPD					800	244	172	5	19	1,240
	180+ DPD					5,472	495	1	1	7	5,976
Government insured/guaranteed loans (1)						29,556	-	-	-	11,077	40,633
	Total consumer loans (excluding PCI)					230,194	67,548	25,448	49,693	42,540	415,423
Total consumer PCI loans (carrying value)						24,730	127	-	-	-	24,857
		Total consumer loans			$	254,924	67,675	25,448	49,693	42,540	440,280
31-Dec-12
By delinquency status:
	Current-29 DPD				$	179,870	73,256	23,976	44,973	29,546	351,621
	30-59 DPD					3,295	577	211	798	168	5,049
	60-89 DPD					1,528	339	143	164	108	2,282
	90-119 DPD					853	265	122	57	73	1,370
	120-179 DPD					1,141	358	187	5	28	1,719
	180+ DPD					6,655	518	1	1	4	7,179
Government insured/guaranteed loans (1)						29,719	-	-	-	12,446	42,165
	Total consumer loans (excluding PCI)					223,061	75,313	24,640	45,998	42,373	411,385
Total consumer PCI loans (carrying value)						26,839	152	-	-	-	26,991
		Total consumer loans			$	249,900	75,465	24,640	45,998	42,373	438,376
Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA and student loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under the Federal Family Education Loan Program (FFELP). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $19.7 billion at September 30, 2013, compared with $20.2 billion at December 31, 2012. Student loans 90+ DPD totaled $917 million at September 30, 2013, compared with $1.1 billion at December 31, 2012.
Of the $8.3 billion of consumer loans not government insured/guaranteed that are 90 days or more past due at September 30, 2013, $883 million was accruing, compared with $10.3 billion past due and $1.1 billion accruing at December 31, 2012.
Real estate 1-4 family first mortgage loans 180 days or more past due totaled $5.5 billion, or 2.4% of total first mortgages (excluding PCI), at September 30, 2013, compared with $6.7 billion, or 3.0%, at December 31, 2012.
The following table provides a breakdown of our consumer portfolio by updated FICO. We obtain FICO scores at loan origination and the scores are updated at least quarterly. The majority of our portfolio is underwritten with a FICO score of 680 and above. FICO is not available for certain loan types and may not be obtained if we deem it unnecessary due to strong collateral and other borrower attributes, primarily securities-based margin loans of $4.9 billion at September 30, 2013, and $5.4 billion at December 31, 2012.
						Real estate	Real estate			Other
						1-4 family	1-4 family			revolving
						first	junior lien	Credit		credit and
(in millions)						mortgage	mortgage	card	Automobile	installment	Total
30-Sep-13
By updated FICO:
	< 600				$	14,914	5,270	2,295	8,013	921	31,413
	600-639					9,397	3,366	2,072	5,945	997	21,777
	640-679					15,407	6,141	3,996	8,880	2,111	36,535
	680-719					24,809	10,413	5,192	8,850	3,873	53,137
	720-759					33,414	14,160	5,289	6,400	5,177	64,440
	760-799					70,177	19,740	4,244	6,076	6,651	106,888
	800+					29,576	7,461	2,114	5,100	4,957	49,208
No FICO available						2,944	997	246	429	1,921	6,537
FICO not required						-	-	-	-	4,855	4,855
Government insured/guaranteed loans (1)						29,556	-	-	-	11,077	40,633
		Total consumer loans (excluding PCI)				230,194	67,548	25,448	49,693	42,540	415,423
Total consumer PCI loans (carrying value)						24,730	127	-	-	-	24,857
			Total consumer loans		$	254,924	67,675	25,448	49,693	42,540	440,280
31-Dec-12
By updated FICO:
	< 600				$	17,662	6,122	2,314	7,928	1,163	35,189
	600-639					10,208	3,660	1,961	5,451	952	22,232
	640-679					15,764	6,574	3,772	8,142	2,011	36,263
	680-719					24,725	11,361	4,990	7,949	3,691	52,716
	720-759					31,502	15,992	5,114	5,787	4,942	63,337
	760-799					63,946	21,874	4,109	5,400	6,971	102,300
	800+					26,044	8,526	2,223	4,443	1,912	43,148
No FICO available						3,491	1,204	157	898	2,882	8,632
FICO not required						-	-	-	-	5,403	5,403
Government insured/guaranteed loans (1)						29,719	-	-	-	12,446	42,165
		Total consumer loans (excluding PCI)				223,061	75,313	24,640	45,998	42,373	411,385
Total consumer PCI loans (carrying value)						26,839	152	-	-	-	26,991
			Total consumer loans		$	249,900	75,465	24,640	45,998	42,373	438,376
Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA and student loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under FFELP.
LTV refers to the ratio comparing the loan's unpaid principal balance to the property's collateral value. CLTV refers to the combination of first mortgage and junior lien mortgage (including unused line amounts for credit line products) ratios. LTVs and CLTVs are updated quarterly using a cascade approach which first uses values provided by automated valuation models (AVMs) for the property. If an AVM is not available, then the value is estimated using the original appraised value adjusted by the change in Home Price Index (HPI) for the property location. If an HPI is not available, the original appraised value is used. The HPI value is normally the only method considered for high value properties, generally with an original value of $1 million or more, as the AVM values have proven less accurate for these properties.
The following table shows the most updated LTV and CLTV distribution of the real estate 1-4 family first and junior lien mortgage loan portfolios. We consider the trends in residential real estate markets as we monitor credit risk and establish our allowance for credit losses. LTV does not necessarily reflect the likelihood of performance of a given loan, but does provide an indication of collateral value. In the event of a default, any loss should be limited to the portion of the loan amount in excess of the net realizable value of the underlying real estate collateral value. Certain loans do not have an LTV or CLTV primarily due to industry data availability and portfolios acquired from or serviced by other institutions.
						30-Sep-13				31-Dec-12
						Real estate	Real estate			Real estate	Real estate
						1-4 family	1-4 family			1-4 family	1-4 family
						first	junior lien			first	junior lien
						mortgage	mortgage			mortgage	mortgage
(in millions)						by LTV	by CLTV	Total		by LTV	by CLTV	Total
By LTV/CLTV:
	0-60%				$	70,848	12,791	83,639		56,247	12,170	68,417
	60.01-80%					74,080	16,097	90,177		69,759	15,168	84,927
	80.01-100%					33,386	16,406	49,792		34,830	18,038	52,868
	100.01-120% (1)					12,551	11,060	23,611		17,004	13,576	30,580
	> 120% (1)					8,066	9,724	17,790		13,529	14,610	28,139
No LTV/CLTV available						1,707	1,470	3,177		1,973	1,751	3,724
Government insured/guaranteed loans (2)						29,556	-	29,556		29,719	-	29,719
		Total consumer loans (excluding PCI)				230,194	67,548	297,742		223,061	75,313	298,374
Total consumer PCI loans (carrying value)						24,730	127	24,857		26,839	152	26,991
			Total consumer loans		$	254,924	67,675	322,599		249,900	75,465	325,365
Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV.
Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
Nonaccrual Loans The following table provides loans on nonaccrual status. PCI loans are excluded from this table due to the existence of the accretable yield.
						Sept. 30,		Dec. 31,
(in millions)							2013	2012
Commercial:
	Commercial and industrial					$	809	1,422
	Real estate mortgage						2,496	3,322
	Real estate construction						517	1,003
	Lease financing						17	27
	Foreign						47	50
		Total commercial (1)					3,886	5,824
Consumer:
	Real estate 1-4 family first mortgage (2)						10,450	11,455
	Real estate 1-4 family junior lien mortgage						2,333	2,922
	Automobile						188	245
	Other revolving credit and installment						36	40
		Total consumer					13,007	14,662
			Total nonaccrual loans
				(excluding PCI)		$	16,893	20,486
Includes LHFS of $26 million and $16 million at September 30, 2013 and December 31, 2012, respectively.
Includes MHFS of $288 million and $336 million at September 30, 2013 and December 31, 2012, respectively.
LOANS 90 Days OR MORE Past Due and Still Accruing Certain loans 90 days or more past due as to interest or principal are still accruing, because they are (1) well-secured and in the process of collection or (2) real estate 1-4 family mortgage loans or consumer loans exempt under regulatory rules from being classified as nonaccrual until later delinquency, usually 120 days past due. PCI loans of $4.9 billion at September 30, 2013, and $6.0 billion at December 31, 2012, are not included in these past due and still accruing loans even though they are 90 days or more contractually past due. These PCI loans are considered to be accruing because they continue to earn interest from accretable yield, independent of performance in accordance with their contractual terms. Loans 90 days or more past due and still accruing whose repayments are predominantly insured by the FHA or guaranteed by the VA for mortgages and the U.S. Department of Education for student loans under the FFELP were $21.1 billion at September 30, 2013, down from $21.8 billion at December 31, 2012.
The following table shows non-PCI loans 90 days or more past due and still accruing by class for loans not government insured/guaranteed
							Sept. 30,	Dec. 31,
(in millions)						2013		2012
Loan 90 days or more past due and still accruing:
Total (excluding PCI):						$	22,181	23,245
	Less: FHA insured/VA guaranteed (1)(2)						20,214	20,745
	Less: Student loans guaranteed
		under the FFELP (3)					917	1,065
			Total, not government
				insured/guaranteed		$	1,050	1,435
By segment and class, not government
	insured/guaranteed:
Commercial:
	Commercial and industrial					$	125	47
	Real estate mortgage						40	228
	Real estate construction						1	27
	Foreign						1	1
		Total commercial					167	303
Consumer:
	Real estate 1-4 family first mortgage (2)						383	564
	Real estate 1-4 family junior lien mortgage (2)						89	133
	Credit card						285	310
	Automobile						48	40
	Other revolving credit and installment						78	85
		Total consumer					883	1,132
			Total, not government
				insured/guaranteed		$	1,050	1,435
Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
Includes mortgage loans held for sale 90 days or more past due and still accruing.
Represents loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under the FFELP.
Impaired Loans The table below summarizes key information for impaired loans. Our impaired loans predominantly include loans on nonaccrual status in the commercial portfolio segment and loans modified in a TDR, whether on accrual or nonaccrual status. These impaired loans generally have estimated losses which are included in the allowance for credit losses. We have impaired loans with no allowance for credit losses when loss content has been previously recognized through charge-offs and we do not anticipate additional charge-offs or losses, or certain loans are currently performing in accordance with their terms and for which no loss has been estimated. Impaired loans exclude PCI loans. The table below includes trial modifications that totaled $717 million at September 30, 2013, and $705 million at December 31, 2012.
For additional information on our impaired loans and allowance for credit losses, see Note 1 (Summary of Significant Accounting Policies) in our 2012 Form 10-K.
							Recorded investment
								Impaired loans
						Unpaid		with related	Related
						principal	Impaired	allowance for	allowance for
(in millions)						balance	loans	credit losses	credit losses
30-Sep-13
Commercial:
	Commercial and industrial				$	2,343	1,418	1,154	234
	Real estate mortgage					4,788	3,765	3,624	955
	Real estate construction					1,125	789	760	137
	Lease financing					58	24	24	8
	Foreign					106	22	22	6
		Total commercial (1)				8,420	6,018	5,584	1,340
Consumer:
	Real estate 1-4 family first mortgage					22,625	19,614	14,194	3,353
	Real estate 1-4 family junior lien mortgage					3,053	2,516	2,038	729
	Credit card					455	455	455	149
	Automobile					265	212	111	13
	Other revolving credit and installment					42	32	25	2
		Total consumer (2)				26,440	22,829	16,823	4,246
			Total impaired loans (excluding PCI)		$	34,860	28,847	22,407	5,586
31-Dec-12
Commercial:
	Commercial and industrial				$	3,331	2,086	2,086	353
	Real estate mortgage					5,766	4,673	4,537	1,025
	Real estate construction					1,975	1,345	1,345	276
	Lease financing					54	39	39	11
	Foreign					109	43	43	9
		Total commercial (1)				11,235	8,186	8,050	1,674
Consumer:
	Real estate 1-4 family first mortgage					21,293	18,472	15,224	3,074
	Real estate 1-4 family junior lien mortgage					2,855	2,483	2,070	859
	Credit card					531	531	531	244
	Automobile					314	314	314	27
	Other revolving credit and installment					27	26	26	6
		Total consumer (2)				25,020	21,826	18,165	4,210
			Total impaired loans (excluding PCI)		$	36,255	30,012	26,215	5,884
Excludes the unpaid principal balance for loans that have been fully charged off or otherwise have zero recorded investment.
At September 30, 2013 and December 31, 2012, includes the recorded investment of $2.4 billion and $1.9 billion, respectively, of government insured/guaranteed loans that are predominantly insured by the FHA or guaranteed by the VA and generally do not have an allowance.
Commitments to lend additional funds on loans whose terms have been modified in a TDR amounted to $415 million at September 30, 2013, and $421 million at December 31, 2012.
The following tables provide the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans by portfolio segment and class.
					Quarter ended September 30,								Nine months ended September 30,
						2013				2012			2013			2012
						Average	Recognized			Average	Recognized		Average	Recognized		Average	Recognized
						recorded		interest		recorded	interest		recorded		interest	recorded	interest
(in millions)					investment			income		investment	income	investment			income	investment	income
Commercial:
	Commercial and industrial				$	1,362		28		2,488	19		1,580		76	2,493	91
	Real estate mortgage					3,868		38		5,147	37		4,093		106	4,826	87
	Real estate construction					878		6		1,831	15		1,070		29	1,897	42
	Lease financing					25		1		61	1		30		1	62	1
	Foreign					27		-		63	1		36		-	34	1
		Total commercial				6,160		73		9,590	73		6,809		212	9,312	222
Consumer:
	Real estate 1-4 family
		first mortgage				19,593		270		14,768	183		19,359		785	14,631	562
	Real estate 1-4 family
		junior lien mortgage				2,499		36		2,102	20		2,492		109	2,078	64
	Credit card					467		14		566	17		491		43	580	48
	Automobile					228		7		290	7		263		24	290	33
	Other revolving credit
		and installment				32		1		26	1		28		2	25	1
		Total consumer (1)				22,819		328		17,752	228		22,633		963	17,604	708
			Total impaired loans
				(excluding PCI)	$	28,979		401		27,342	301		29,442		1,175	26,916	930
Interest income:
	Cash basis of accounting						$	129			72				371		198
	Other (2)							272			229				804		732
		Total interest income					$	401			301				1,175		930
Quarter and nine months ended September 30, 2013, reflect the OCC guidance issued in third quarter 2012, which requires consumer loans discharged in bankruptcy to be classified as TDRs, as well as written down to net realizable collateral value.
Includes interest recognized on accruing TDRs, interest recognized related to certain impaired loans which have an allowance calculated using discounting, and amortization of purchase accounting adjustments related to certain impaired loans. See footnote 1 to the table of changes in the allowance for credit losses.
TROUBLED DEBT RESTRUCTURINGs (TDRs) When, for economic or legal reasons related to a borrower's financial difficulties, we grant a concession for other than an insignificant period of time to a borrower that we would not otherwise consider, the related loan is classified as a TDR. We do not consider any loans modified through a loan resolution such as foreclosure or short sale to be a TDR.
We may require some borrowers experiencing financial difficulty to make trial payments generally for a period of three to four months, according to the terms of a planned permanent modification, to determine if they can perform according to those terms. These arrangements represent trial modifications, which we classify and account for as TDRs. While loans are in trial payment programs, their original terms are not considered modified and they continue to advance through delinquency status and accrue interest according to their original terms. The planned modifications for these arrangements predominantly involve interest rate reductions or other interest rate concessions; however, the exact concession type and resulting financial effect are usually not finalized and do not take effect until the loan is permanently modified. The trial period terms are developed in accordance with our proprietary programs or the U.S. Treasury's Making Homes Affordable programs for real estate 1-4 family first lien (i.e. Home Affordable Modification Program – HAMP) and junior lien (i.e. Second Lien Modification Program – 2MP) mortgage loans.
At September 30, 2013, the loans in trial modification period were $314 million under HAMP, $48 million under 2MP and $355 million under proprietary programs, compared with $402 million, $45 million and $258 million at December 31, 2012, respectively. Trial modifications with a recorded investment of $305 million at September 30, 2013, and $276 million at December 31, 2012, were accruing loans and $412 million and $429 million, respectively, were nonaccruing loans. Our experience is that most of the mortgages that enter a trial payment period program are successful in completing the program requirements and are then permanently modified at the end of the trial period. Our allowance process considers the impact of those modifications that are probable to occur.
The following table summarizes our TDR modifications for the periods presented by primary modification type and includes the financial effects of these modifications. For those loans that modify more than once, the table reflects each modification that occurred during the period.
						Primary modification type (1)					Financial effects of modifications
												Weighted		Recorded
												average		investment
							Interest					interest		related to
							rate	Other			Charge-	rate		interest rate
(in millions)					Principal (2)		reduction	concessions (3)	Total		offs (4)	reduction		reduction (5)
Quarter ended September 30, 2013
Commercial:
	Commercial and industrial				$	2	73	316	391		6	3.58	%	$	73
	Real estate mortgage					-	62	345	407		1	1.65			62
	Real estate construction					-	6	54	60		-	1.08			6
	Lease financing					-	-	-	-		-	-			-
	Foreign					-	1	-	1		-	0.26			1
		Total commercial				2	142	715	859		7	2.6			142
Consumer:
	Real estate 1-4 family first mortgage					271	259	832	1,362		49	2.8			485
	Real estate 1-4 family junior lien mortgage					24	41	77	142		8	3.43			64
	Credit card					-	46	-	46		-	10.15			46
	Automobile					1	2	26	29		9	8.98			2
	Other revolving credit and installment					-	2	2	4		-	5.4			2
	Trial modifications (6)					-	-	37	37		-	-			-
		Total consumer				296	350	974	1,620		66	3.46			599
			Total		$	298	492	1,689	2,479		73	3.3	%	$	741
Quarter ended September 30, 2012
Commercial:
	Commercial and industrial				$	-	5	364	369		2	1.15	%	$	5
	Real estate mortgage					2	40	405	447		2	1.48			42
	Real estate construction					12	1	111	124		1	2.26			2
	Lease financing					-	-	1	1		-	-			-
	Foreign					-	-	14	14		-	-			-
		Total commercial				14	46	895	955		5	1.47			49
Consumer:
	Real estate 1-4 family first mortgage					379	390	3,822	4,591		221	3.04			686
	Real estate 1-4 family junior lien mortgage					17	57	489	563		445	3.66			73
	Credit card					-	58	-	58		-	10.85			58
	Automobile					1	14	170	185		7	5.47			14
	Other revolving credit and installment					-	1	17	18		-	5.43			1
	Trial modifications (6)					-	-	7	7		-	-			-
		Total consumer				397	520	4,505	5,422		673	3.68			832
			Total		$	411	566	5,400	6,377		678	3.56	%	$	881
(continued on following page)
(continued from previous page)
						Primary modification type (1)					Financial effects of modifications
												Weighted		Recorded
												average		investment
							Interest					interest		related to
							rate	Other			Charge-	rate		interest rate
(in millions)					Principal (2)		reduction	concessions (3)	Total		offs (4)	reduction		reduction (5)
Nine months ended September 30, 2013
Commercial:
	Commercial and industrial				$	2	156	877	1,035		7	5.09	%	$	156
	Real estate mortgage					28	232	1,113	1,373		7	1.67			232
	Real estate construction					-	9	253	262		4	1.02			9
	Lease financing					-	-	-	-		-	-			-
	Foreign					15	1	-	16		-	-			1
		Total commercial				45	398	2,243	2,686		18	2.99			398
Consumer:
	Real estate 1-4 family first mortgage					897	1,016	2,928	4,841		194	2.63			1,671
	Real estate 1-4 family junior lien mortgage					76	135	335	546		24	3.3			206
	Credit card					-	138	-	138		-	10.47			138
	Automobile					3	10	74	87		25	7.39			10
	Other revolving credit and installment					-	8	9	17		-	4.95			8
	Trial modifications (6)					-	-	91	91		-	-			-
		Total consumer				976	1,307	3,437	5,720		243	3.27			2,033
			Total		$	1,021	1,705	5,680	8,406		261	3.22	%	$	2,431
Nine months ended September 30, 2012
Commercial:
	Commercial and industrial				$	11	27	1,113	1,151		22	1.53	%	$	28
	Real estate mortgage					13	160	1,341	1,514		9	1.47			164
	Real estate construction					12	8	395	415		10	2.49			8
	Lease financing					-	-	3	3		-	-			-
	Foreign					-	-	16	16		-	-			-
		Total commercial				36	195	2,868	3,099		41	1.52			200
Consumer:
	Real estate 1-4 family first mortgage					1,033	894	4,194	6,121		354	2.96			1,728
	Real estate 1-4 family junior lien mortgage					50	194	558	802		461	3.79			238
	Credit card					-	191	-	191		-	10.83			191
	Automobile					5	46	227	278		26	6.94			48
	Other revolving credit and installment					-	2	18	20		1	4.57			2
	Trial modifications (6)					-	-	678	678		-	-			-
		Total consumer				1,088	1,327	5,675	8,090		842	3.82			2,207
			Total		$	1,124	1,522	8,543	11,189		883	3.63	%	$	2,407
-1	Amounts represent the recorded investment in loans after recognizing the effects of the TDR, if any. TDRs with multiple types of concessions are presented only once in the table in the first category type based on the order presented. The reported amounts include loans remodified in the current reporting period, which total $807 million and $652 million for the third quarter 2013 and 2012 and $2.4 billion and $1.8 billion for the nine months ended September 30, 2013 and 2012, respectively.
-2	Principal modifications include principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, and principal that has been legally separated and deferred to the end of the loan, with a zero percent contractual interest rate.
-3	Other concessions include loans for which the interest rate is not commensurate with the credit risk that results from modification. These modifications would include renewals, term extensions and other interest and noninterest adjustments, but exclude modifications that also forgive principal and/or reduce the interest rate. Includes $703 million and $2.6 billion of consumer loans discharged in bankruptcy for the quarter and nine months ended September 30, 2013, respectively, and $4.3 billion for the quarter and nine months ended September 30, 2012, as a result of the OCC guidance implementation. The OCC guidance issued in third quarter 2012 required consumer loans discharged in bankruptcy to be classified as TDRs, as well as written down to net realizable collateral value.
-4	Charge-offs include write-downs of the investment in the loan in the period it is contractually modified. The amount of charge-off will differ from the modification terms if the loan has been charged down prior to the modification based on our policies. In addition, there may be cases where we have a charge-off/down with no legal principal modification. Modifications resulted in legally forgiving principal (actual, contingent or deferred) of $87 million and $141 million for the third quarters of 2013 and 2012 and $316 million and $362 million for the nine months ended of September 30, 2013 and 2012, respectively.
-5	Reflects the effect of reduced interest rates on loans with principal or interest rate reduction primary modification type.
-6	Trial modifications are granted a delay in payments due under the original terms during the trial payment period. However, these loans continue to advance through delinquency status and accrue interest according to their original terms. Any subsequent permanent modification generally includes interest rate related concessions; however, the exact concession type and resulting financial effect are usually not known until the loan is permanently modified. Trial modifications for the period are presented net of previously reported trial modifications that became permanent in the current period.
The table below summarizes permanent modification TDRs that have defaulted in the current period within 12 months of their permanent modification date. We are reporting these defaulted TDRs based on a payment default definition of 90 days past due for the commercial portfolio segment and 60 days past due for the consumer portfolio segment.
					Recorded investment of defaults
						Quarter ended Sept. 30,			Nine months ended Sept. 30,
(in millions)						2013	2012		2013	2012
Commercial:
	Commercial and industrial				$	19	119		214	269
	Real estate mortgage					51	124		228	473
	Real estate construction					10	23		62	252
	Lease financing					-	-		-	-
	Foreign					1	-		1	-
		Total commercial				81	266		505	994
Consumer:
	Real estate 1-4 family first mortgage					107	150		271	447
	Real estate 1-4 family junior lien mortgage					9	12		26	48
	Credit card					13	22		45	73
	Automobile					5	18		14	45
	Other revolving credit and installment					1	-		1	1
		Total consumer				135	202		357	614
			Total		$	216	468		862	1,608
Purchased Credit-Impaired Loans
Substantially all of our PCI loans were acquired from Wachovia on December 31, 2008. The following table presents PCI loans net of any remaining purchase accounting adjustments. Real estate 1-4 family first mortgage PCI loans are predominantly Pick-a-Pay loans.
						Sept. 30,		December 31,
(in millions)						2013		2012	2008
Commercial:
	Commercial and industrial				$	210		259	4,580
	Real estate mortgage					1,419		1,970	5,803
	Real estate construction					605		877	6,462
	Foreign					743		871	1,859
		Total commercial				2,977		3,977	18,704
Consumer:
	Real estate 1-4 family first mortgage					24,730		26,839	39,214
	Real estate 1-4 family junior lien mortgage					127		152	728
	Automobile					-		-	151
		Total consumer				24,857		26,991	40,093
			Total PCI loans (carrying value)		$	27,834		30,968	58,797
Total PCI loans (unpaid principal balance)					$	39,870		45,174	98,182
Accretable Yield The excess of cash flows expected to be collected over the carrying value of PCI loans is referred to as the accretable yield and is recognized in interest income using an effective yield method over the remaining life of the loan, or pools of loans. The accretable yield is affected by:
changes in interest rate indices for variable rate PCI loans – expected future cash flows are based on the variable rates in effect at the time of the regular evaluations of cash flows expected to be collected;
changes in prepayment assumptions – prepayments affect the estimated life of PCI loans which may change the amount of interest income, and possibly principal, expected to be collected; and
changes in the expected principal and interest payments over the estimated life – updates to expected cash flows are driven by the credit outlook and actions taken with borrowers. Changes in expected future cash flows from loan modifications are included in the regular evaluations of cash flows expected to be collected.
The change in the accretable yield related to PCI loans is presented in the following table.
(in millions)
Balance, December 31, 2008						$	10,447
	Addition of accretable yield due to acquisitions						131
	Accretion into interest income (1)						-9,351
	Accretion into noninterest income due to sales (2)						-242
	Reclassification from nonaccretable difference for loans with improving credit-related cash flows						5,354
	Changes in expected cash flows that do not affect nonaccretable difference (3)						12,209
Balance, December 31, 2012							18,548
	Addition of accretable yield due to acquisitions						1
	Accretion into interest income (1)						-1,386
	Accretion into noninterest income due to sales (2)						-151
	Reclassification from nonaccretable difference for loans with improving credit-related cash flows						916
	Changes in expected cash flows that do not affect nonaccretable difference (3)						1,588
Balance, September 30, 2013						$	19,516
Balance, June 30, 2013						$	20,021
	Addition of accretable yield due to acquisitions						1
	Accretion into interest income (1)						-481
	Accretion into noninterest income due to sales (2)						-
	Reclassification from nonaccretable difference for loans with improving credit-related cash flows						9
	Changes in expected cash flows that do not affect nonaccretable difference (3)						-34
Balance, September 30, 2013						$	19,516
-1	Includes accretable yield released as a result of settlements with borrowers, which is included in interest income.
-2	Includes accretable yield released as a result of sales to third parties, which is included in noninterest income.
-3	Represents changes in cash flows expected to be collected due to the impact of modifications, changes in prepayment assumptions, changes in interest rates on variable rate PCI loans and sales to third parties.
PCI Allowance Based on our regular evaluation of estimates of cash flows expected to be collected, we may establish an allowance for a PCI loan or pool of loans, with a charge to income though the provision for losses. The following table summarizes the changes in allowance for PCI loan losses.
						Other
(in millions)				Commercial	Pick-a-Pay	consumer	Total
Balance, December 31, 2008			$	-	-	-	-
	Provision for losses due to credit deterioration			1,693	-	123	1,816
	Charge-offs			-1,605	-	-94	-1,699
Balance, December 31, 2012				88	-	29	117
	Reversal of provision for losses			-65	-	-15	-80
	Charge-offs			-6	-	-9	-15
Balance, September 30, 2013			$	17	-	5	22
Balance, June 30, 2013			$	49	-	22	71
	Reversal of provision for losses			-31	-	-16	-47
	Charge-offs			-1	-	-1	-2
Balance, September 30, 2013			$	17	-	5	22
Commercial PCI Credit Quality Indicators The following
table provides a breakdown of commercial PCI loans by risk category.
					Commercial		Real	Real
						and	estate	estate
(in millions)						industrial	mortgage	construction	Foreign	Total
30-Sep-13
By risk category:
	Pass				$	108	357	215	7	687
	Criticized					102	1,062	390	736	2,290
		Total commercial PCI loans			$	210	1,419	605	743	2,977
31-Dec-12
By risk category:
	Pass				$	95	341	207	255	898
	Criticized					164	1,629	670	616	3,079
		Total commercial PCI loans			$	259	1,970	877	871	3,977
The following table provides past due information for commercial PCI loans.
					Commercial		Real	Real
						and	estate	estate
(in millions)						industrial	mortgage	construction	Foreign	Total
30-Sep-13
By delinquency status:
	Current-29 DPD and still accruing				$	202	1,315	491	634	2,642
	30-89 DPD and still accruing					3	51	32	10	96
	90+ DPD and still accruing					5	53	82	99	239
		Total commercial PCI loans			$	210	1,419	605	743	2,977
31-Dec-12
By delinquency status:
	Current-29 DPD and still accruing				$	235	1,804	699	704	3,442
	30-89 DPD and still accruing					1	26	51	-	78
	90+ DPD and still accruing					23	140	127	167	457
		Total commercial PCI loans			$	259	1,970	877	871	3,977
Consumer PCI Credit Quality Indicators Our consumer PCI loans were aggregated into several pools of loans at acquisition. Below, we have provided credit quality indicators based on the unpaid principal balance (adjusted for write-downs) of the individual loans included in the pool, but we have not allocated the remaining purchase accounting adjustments, which were established at a pool level. The following table provides the delinquency status of consumer PCI loans.
						30-Sep-13				31-Dec-12
						Real estate	Real estate			Real estate	Real estate
						1-4 family	1-4 family			1-4 family	1-4 family
						first	junior lien			first	junior lien
(in millions)						mortgage	mortgage	Total		mortgage	mortgage	Total
By delinquency status:
	Current-29 DPD and still accruing				$	20,942	173	21,115		22,304	198	22,502
	30-59 DPD and still accruing					2,247	9	2,256		2,587	11	2,598
	60-89 DPD and still accruing					1,178	5	1,183		1,361	7	1,368
	90-119 DPD and still accruing					494	3	497		650	6	656
	120-179 DPD and still accruing					566	4	570		804	7	811
	180+ DPD and still accruing					4,576	101	4,677		5,356	116	5,472
		Total consumer PCI loans (adjusted unpaid principal balance)			$	30,003	295	30,298		33,062	345	33,407
		Total consumer PCI loans (carrying value)			$	24,730	127	24,857		26,839	152	26,991
The following table provides FICO scores for consumer PCI loans.
						30-Sep-13				31-Dec-12
						Real estate	Real estate			Real estate	Real estate
						1-4 family	1-4 family			1-4 family	1-4 family
						first	junior lien			first	junior lien
(in millions)						mortgage	mortgage	Total		mortgage	mortgage	Total
By FICO:
	< 600				$	10,590	108	10,698		13,163	144	13,307
	600-639					6,200	62	6,262		6,673	68	6,741
	640-679					6,736	71	6,807		6,602	73	6,675
	680-719					3,659	36	3,695		3,635	39	3,674
	720-759					1,657	10	1,667		1,757	11	1,768
	760-799					829	5	834		874	6	880
	800+					207	1	208		202	1	203
No FICO available						125	2	127		156	3	159
		Total consumer PCI loans (adjusted unpaid principal balance)			$	30,003	295	30,298		33,062	345	33,407
		Total consumer PCI loans (carrying value)			$	24,730	127	24,857		26,839	152	26,991
The following table shows the distribution of consumer PCI loans by LTV for real estate 1-4 family first mortgages and by CLTV for real estate 1-4 family junior lien mortgages.
						30-Sep-13				31-Dec-12
					Real estate		Real estate			Real estate	Real estate
						1-4 family	1-4 family			1-4 family	1-4 family
						first	junior lien			first	junior lien
						mortgage	mortgage			mortgage	mortgage
(in millions)						by LTV	by CLTV	Total		by LTV	by CLTV	Total
By LTV/CLTV:
	0-60%				$	1,938	28	1,966		1,374	21	1,395
	60.01-80%					6,122	34	6,156		4,119	30	4,149
	80.01-100%					10,403	75	10,478		9,576	61	9,637
	100.01-120% (1)					6,339	78	6,417		8,084	93	8,177
	> 120% (1)					5,192	79	5,271		9,889	138	10,027
No LTV/CLTV available						9	1	10		20	2	22
		Total consumer PCI loans (adjusted unpaid principal balance)			$	30,003	295	30,298		33,062	345	33,407
		Total consumer PCI loans (carrying value)			$	24,730	127	24,857		26,839	152	26,991
Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV.

Other_Assets

Other Assets	9 Months Ended
	Sep. 30, 2013
Other Assets [Abstract]	'
Other Assets	'
	Note 6: Other Assets
	The components of other assets were:
								Sept. 30,	Dec. 31,
	(in millions)							2013	2012
	Nonmarketable equity investments:
		Cost method:
			Private equity				$	2,413	2,572
			Federal bank stock					4,788	4,227
				Total cost method				7,201	6,799
		Equity method:
			LIHTC investments (1)					5,914	4,767
			Private equity and other					5,714	6,156
				Total equity method				11,628	10,923
		Fair value (2)						911	-
					Total nonmarketable
						equity investments		19,740	17,722
	Corporate/bank-owned life insurance							18,694	18,649
	Accounts receivable							27,715	25,828
	Interest receivable							5,221	5,006
	Core deposit intangibles							4,984	5,915
	Customer relationship and
		other amortized intangibles						1,151	1,352
	Foreclosed assets:
		GNMA (3)						1,781	1,509
		Other						2,021	2,514
	Operating lease assets							1,983	2,001
	Due from customers on acceptances							352	282
	Other							10,620	12,800
						Total other assets	$	94,262	93,578
	Represents low income housing tax credit investments.
	Represents nonmarketable equity investments for which we have elected the fair value option. See Note 13 for additional information.
	These are foreclosed real estate resulting from government insured/guaranteed loans. Both principal and interest related to these foreclosed real estate assets are collectible because the loans were predominantly insured by the FHA or guaranteed by the VA.
	Income (expense) related to nonmarketable equity investments was:
							Quarter			Nine months
						ended Sept. 30,				ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Net realized gains
		from nonmarketable
		equity investments				$	382	125		606	415
	All other						-56	-27		-147	-51
		Total				$	326	98		459	364

Securitizations_and_Variable_I

Securitizations and Variable Interest Entities	9 Months Ended
	Sep. 30, 2013
Securitizations and Variable Interest Entities [Abstract]	'
Securitizations and Variable Interest Entities	'
	Note 7: Securitizations and Variable Interest Entities
	Involvement with SPEs
	In the normal course of business, we enter into various types of on- and off-balance sheet transactions with special purpose entities (SPEs), which are corporations, trusts or partnerships that are established for a limited purpose. Generally, SPEs are formed in connection with securitization transactions. In a securitization transaction, assets from our balance sheet are transferred to an SPE, which then issues to investors various forms of interests in those assets and may also enter into derivative transactions. In a securitization transaction, we typically receive cash and/or other interests in an SPE as proceeds for the assets we transfer. Also, in certain transactions, we may retain the right to service the transferred receivables and to repurchase those receivables from the SPE if the outstanding balance of the receivables falls to a level where the cost exceeds the benefits of servicing such receivables. In addition, we may purchase the right to service loans in an SPE that were transferred to the SPE by a third party.
	In connection with our securitization activities, we have various forms of ongoing involvement with SPEs, which may include:
	•       underwriting securities issued by SPEs and subsequently making markets in those securities;
	•       providing liquidity facilities to support short-term obligations of SPEs issued to third party investors;
	providing credit enhancement on securities issued by SPEs or market value guarantees of assets held by SPEs through the use of letters of credit, financial guarantees, credit default swaps and total return swaps;
	•       entering into other derivative contracts with SPEs;
	•       holding senior or subordinated interests in SPEs;
	•       acting as servicer or investment manager for SPEs; and
	•       providing administrative or trustee services to SPEs.
	SPEs are generally considered variable interest entities (VIEs). A VIE is an entity that has either a total equity investment that is insufficient to finance its activities without additional subordinated financial support or whose equity investors lack the ability to control the entity's activities. A VIE is consolidated by its primary beneficiary, the party that has both the power to direct the activities that most significantly impact the VIE and a variable interest that could potentially be significant to the VIE. A variable interest is a contractual, ownership or other interest that changes with changes in the fair value of the VIE's net assets. To determine whether or not a variable interest we hold could potentially be significant to the VIE, we consider both qualitative and quantitative factors regarding the nature, size and form of our involvement with the VIE. We assess whether or not we are the primary beneficiary of a VIE on an on-going basis.
	We have segregated our involvement with VIEs between those VIEs which we consolidate, those which we do not consolidate and those for which we account for the transfers of financial assets as secured borrowings. Secured borrowings are transactions involving transfers of our financial assets to third parties that are accounted for as financings with the assets pledged as collateral. Accordingly, the transferred assets remain recognized on our balance sheet. Subsequent tables within this Note further segregate these transactions by structure type.
	The classifications of assets and liabilities in our balance sheet associated with our transactions with VIEs follow:
									Transfers that
					VIEs that we			VIEs	we account
					do not			that we	for as secured
	(in millions)				consolidate		consolidate		borrowings			Total
	30-Sep-13
	Cash				$	-		171		27		198
	Trading assets					1,751		186		195		2,132
	Securities available for sale (1)					19,034		1,377		10,647		31,058
	Mortgages held for sale					-		66		-		66
	Loans					7,490		8,007		6,257		21,754
	Mortgage servicing rights					13,975		-		-		13,975
	Other assets					5,868		348		138		6,354
		Total assets				48,118		10,155		17,264		75,537
	Short-term borrowings					-		23	-2	8,184		8,207
	Accrued expenses and other liabilities					3,842		807	-2	5		4,654
	Long-term debt					-		2,571	-2	5,889		8,460
		Total liabilities				3,842		3,401		14,078		21,321
	Noncontrolling interests					-		7		-		7
			Net assets		$	44,276		6,747		3,186		54,209
	31-Dec-12
	Cash				$	-		260		30		290
	Trading assets					1,902		114		218		2,234
	Securities available for sale (1)					19,900		2,772		14,848		37,520
	Mortgages held for sale					-		469		-		469
	Loans					9,841		10,553		7,088		27,482
	Mortgage servicing rights					11,114		-		-		11,114
	Other assets					4,993		457		161		5,611
		Total assets				47,750		14,625		22,345		84,720
	Short-term borrowings					-		2,059	-2	13,228		15,287
	Accrued expenses and other liabilities					3,441		901	-2	20		4,362
	Long-term debt					-		3,483	-2	6,520		10,003
		Total liabilities				3,441		6,443		19,768		29,652
	Noncontrolling interests					-		48		-		48
			Net assets		$	44,309		8,134		2,577		55,020
	Excludes certain debt securities related to loans serviced for the Federal National Mortgage Association (FNMA), Federal Home Loan Mortgage Corporation (FHLMC) and GNMA.
	Includes the following VIE liabilities at September 30, 2013 and December 31, 2012, respectively, with recourse to the general credit of Wells Fargo: Short-term borrowings, $0 and $2.1 billion; Accrued expenses and other liabilities, $704 million and $767 million; and Long-term debt, $29 million and $29 million.
	Transactions with Unconsolidated VIEs
	Our transactions with VIEs include securitizations of residential mortgage loans, CRE loans, student loans and auto loans and leases; investment and financing activities involving CDOs backed by asset-backed and CRE securities, collateralized loan obligations (CLOs) backed by corporate loans, and other types of structured financing. We have various forms of involvement with VIEs, including holding senior or subordinated interests, entering into liquidity arrangements, credit default swaps and other derivative contracts. Involvements with these unconsolidated VIEs are recorded on our balance sheet primarily in trading assets, securities available for sale, loans, MSRs, other assets and other liabilities, as appropriate.
	The following tables provide a summary of unconsolidated VIEs with which we have significant continuing involvement, but we are not the primary beneficiary. We do not consider our continuing involvement in an unconsolidated VIE to be significant when it relates to third-party sponsored VIEs for which we were not the transferor or if we were the sponsor but do not have any other significant continuing involvement.
	Significant continuing involvement includes transactions where we were the sponsor or transferor and have other significant forms of involvement. Sponsorship includes transactions with unconsolidated VIEs where we solely or materially participated in the initial design or structuring of the entity or marketing of the transaction to investors. When we transfer assets to a VIE and account for the transfer as a sale, we are considered the transferor. We consider investments in securities held outside of trading, loans, guarantees, liquidity agreements, written options and servicing of collateral to be other forms of involvement that may be significant. We have excluded certain transactions with unconsolidated VIEs from the balances presented in the following table where we have determined that our continuing involvement is not significant due to the temporary nature and size of our variable interests, because we were not the transferor or because we were not involved in the design or operations of the unconsolidated VIEs.
									Carrying value - asset (liability)
												Other
							Total		Debt and			commitments
							VIE		equity	Servicing		and	Net
	(in millions)						assets	interests (1)		assets	Derivatives	guarantees	assets
	30-Sep-13
	Residential mortgage loan
		securitizations:
			Conforming			$	1,311,328		3,175	13,337	-	-1,150	15,362
		Other/nonconforming				40,113		1,841	252	-	-47	2,046
Commercial mortgage securitizations						170,356		7,466	362	256	-	8,084
Collateralized debt obligations:
		Debt securities				6,284		36	-	339	-130	245
		Loans (2)				6,038		5,905	-	-	-	5,905
Asset-based finance structures						11,030		7,015	-	-91	-	6,924
Tax credit structures						21,642		6,135	-	-	-2,164	3,971
Collateralized loan obligations						4,791		984	-	-	-	984
Investment funds						3,700		51	-	-	-	51
Other (3)						9,515		871	24	-3	-188	704
		Total			$	1,584,797		33,479	13,975	501	-3,679	44,276
								Maximum exposure to loss
											Other
								Debt and			commitments
								equity	Servicing		and	Total
							interests		assets	Derivatives	guarantees	exposure
Residential mortgage loan
	securitizations:
		Conforming (4)					$	3,175	13,337	-	3,225	19,737
		Other/nonconforming						1,841	252	-	369	2,462
Commercial mortgage securitizations								7,466	362	359	-	8,187
Collateralized debt obligations:
		Debt securities						36	-	339	130	505
		Loans (2)						5,905	-	-	-	5,905
Asset-based finance structures								7,015	-	91	1,687	8,793
Tax credit structures								6,135	-	-	499	6,634
Collateralized loan obligations								984	-	-	158	1,142
Investment funds								51	-	-	33	84
Other (3)								871	24	177	188	1,260
		Total					$	33,479	13,975	966	6,289	54,709
(continued on following page)
(continued from previous page)
								Carrying value - asset (liability)
											Other
						Total		Debt and			commitments
						VIE		equity	Servicing		and	Net
(in millions)						assets		interests (1)	assets	Derivatives	guarantees	assets
31-Dec-12
Residential mortgage loan securitizations:
	Conforming				$	1,268,494		3,620	10,336	-	-1,690	12,266
	Other/nonconforming					49,794		2,188	284	-	-53	2,419
Commercial mortgage securitizations						168,126		7,081	466	404	-	7,951
Collateralized debt obligations:
	Debt securities					6,940		13	-	471	144	628
	Loans (2)					8,155		7,962	-	-	-	7,962
Asset-based finance structures						10,404		7,155	-	-104	-	7,051
Tax credit structures						20,098		5,180	-	-	-1,657	3,523
Collateralized loan obligations						6,641		1,439	-	1	-	1,440
Investment funds						4,771		49	-	-	-	49
Other (3)						10,401		977	28	14	1	1,020
	Total				$	1,553,824		35,664	11,114	786	-3,255	44,309
								Maximum exposure to loss
											Other
								Debt and			commitments
								equity	Servicing		and	Total
								interests	assets	Derivatives	guarantees	exposure
Residential mortgage loan securitizations:
	Conforming (4)						$	3,620	10,336	-	5,061	19,017
	Other/nonconforming							2,188	284	-	353	2,825
Commercial mortgage securitizations								7,081	466	446	-	7,993
Collateralized debt obligations:
	Debt securities							13	-	471	144	628
	Loans (2)							7,962	-	-	-	7,962
Asset-based finance structures								7,155	-	104	1,967	9,226
Tax credit structures								5,180	-	-	247	5,427
Collateralized loan obligations								1,439	-	1	261	1,701
Investment funds								49	-	-	27	76
Other (3)								977	28	318	119	1,442
	Total						$	35,664	11,114	1,340	8,179	56,297
Includes total equity interests of $6.6 billion at September 30, 2013 and $5.8 billion at December 31, 2012. Also includes debt interests in the form of both loans and securities. Excludes certain debt securities held related to loans serviced for FNMA, FHLMC and GNMA.
Represents senior loans to trusts that are collateralized by asset-backed securities. The trusts invest primarily in senior tranches from a diversified pool of primarily U.S. asset securitizations, of which all are current, and over 72% and 83% were rated as investment grade by the primary rating agencies at September 30, 2013 and December 31, 2012, respectively. These senior loans are accounted for at amortized cost and are subject to the Company's allowance and credit charge-off policies.
Includes structured financing, student loan securitizations, auto loan and lease securitizations and credit-linked note structures. Also contains investments in auction rate securities (ARS) issued by VIEs that we do not sponsor and, accordingly, are unable to obtain the total assets of the entity.
Maximum exposure to loss for conforming residential mortgage loan securitizations at September 30, 2013 reflects the benefit of a settlement reached with FHLMC on September 27, 2013, that resolved substantially all repurchase liabilities associated with loans sold to FHLMC prior to January 1, 2009. For additional information on the agreement reached with FHLMC see Note 8.
In the two preceding tables, “Total VIE assets” represents the remaining principal balance of assets held by unconsolidated VIEs using the most current information available. For VIEs that obtain exposure to assets synthetically through derivative instruments, the remaining notional amount of the derivative is included in the asset balance. “Carrying value” is the amount in our consolidated balance sheet related to our involvement with the unconsolidated VIEs. “Maximum exposure to loss” from our involvement with off-balance sheet entities, which is a required disclosure under GAAP, is determined as the carrying value of our involvement with off-balance sheet (unconsolidated) VIEs plus the remaining undrawn liquidity and lending commitments, the notional amount of net written derivative contracts, and generally the notional amount of, or stressed loss estimate for, other commitments and guarantees. It represents estimated loss that would be incurred under severe, hypothetical circumstances, for which we believe the possibility is extremely remote, such as where the value of our interests and any associated collateral declines to zero, without any consideration of recovery or offset from any economic hedges. Accordingly, this required disclosure is not an indication of expected loss.
For complete descriptions of our types of transactions with unconsolidated VIEs with which we have significant continuing involvement, but we are not the primary beneficiary, see Note 8 in our 2012 Form 10-K.
OTHER TRANSACTIONS WITH VIEs Auction rate securities (ARS) are debt instruments with long-term maturities, but which re-price more frequently, and preferred equities with no maturity. At September 30, 2013, we held in our securities available-for-sale portfolio $661 million of ARS issued by VIEs redeemed pursuant to agreements entered into in 2008 and 2009, compared with $686 million at December 31, 2012.
We do not consolidate the VIEs that issued the ARS because we do not have power over the activities of the VIEs.
TRUST PREFERRED SECURITIES VIEs that we wholly own issue debt securities or preferred equity to third party investors. All of the proceeds of the issuance are invested in debt securities or preferred equity that we issue to the VIEs. The VIEs' operations and cash flows relate only to the issuance, administration and repayment of the securities held by third parties. We do not consolidate these VIEs because the sole assets of the VIEs are receivables from us, even though we own all of the voting equity shares of the VIEs, have fully guaranteed the obligations of the VIEs and may have the right to redeem the third party securities under certain circumstances. In our consolidated balance sheet at September 30, 2013 and December 31, 2012, we reported the debt securities issued to the VIEs as long-term junior subordinated debt with a carrying value of $1.9 billion and $4.9 billion, respectively, and the preferred equity securities issued to the VIEs as preferred stock with a carrying value of $2.5 billion at both dates. These amounts are in addition to the involvements in these VIEs included in the preceding table.
In the first nine months of 2013, we redeemed $2.8 billion of trust preferred securities that will no longer count as Tier 1 capital under the Dodd-Frank Act and the Basel Committee recommendations known as the Basel III standards.
Securitization Activity Related to Unconsolidated VIEs
We use VIEs to securitize consumer and CRE loans and other types of financial assets, including student loans and auto loans. We typically retain the servicing rights from these sales and may continue to hold other beneficial interests in the VIEs. We may also provide liquidity to investors in the beneficial interests and credit enhancements in the form of standby letters of credit. Through these securitizations we may be exposed to liability under limited amounts of recourse as well as standard representations and warranties we make to purchasers and issuers. The following table presents the cash flows with our securitization trusts that were involved in transfers accounted for as sales.
			2013			2012
				Other			Other
		Mortgage		financial		Mortgage	financial
(in millions)			loans	assets		loans	assets
Quarter ended September 30,
Sales proceeds from securitizations (1)		$	86,423	-		135,596	-
Fees from servicing rights retained			1,051	2		1,088	3
Other interests held			1,014	24		466	20
Purchases of delinquent assets			-	-		2	-
Servicing advances, net of repayments			-181	-		25	-
Nine months ended September 30,
Sales proceeds from securitizations (1)		$	308,016	-		412,465	-
Fees from servicing rights retained			3,178	7		3,312	8
Other interests held			1,861	72		1,333	114
Purchases of delinquent assets			16	-		54	-
Servicing advances, net of repayments			633	-		151	-
Represents cash flow data for all loans securitized in the period presented.
In the third quarter and first nine months of 2013, we recognized net gains of $28 million and $138 million, respectively, from transfers accounted for as sales of financial assets in securitizations, compared with $97 million and $161 million, respectively, in the same periods of 2012. These net gains primarily relate to commercial mortgage securitizations and residential mortgage securitizations where the loans were not already carried at fair value.
Sales with continuing involvement during the third quarter and first nine months of 2013 and 2012 predominantly related to securitizations of residential mortgages that are sold to the GSEs, including FNMA, FHLMC and GNMA (conforming residential mortgage securitizations). During the third quarter and first nine months of 2013 we transferred $84.4 billion and $296.3 billion respectively, in fair value of conforming residential mortgages to unconsolidated VIEs and recorded the transfers as sales, compared with $129.3 billion and $398.4 billion, respectively, in the same periods of 2012. Substantially all of these transfers did not result in a gain or loss because the loans were already carried at fair value. In connection with all of these transfers, in the first nine months of 2013 we recorded a $2.9 billion servicing asset, measured at fair value using a Level 3 measurement technique, and a $127 million liability for probable repurchase losses which reflects management's estimate of probable losses related to various representations and warranties for the loans transferred, initially measured at fair value. In the first nine months of 2012, we recorded a $3.8 billion servicing asset and a $209 million liability.
We used the following key weighted-average assumptions to measure mortgage servicing assets at the date of securitization:
			Residential mortgage
			servicing rights
			2013		2012
Quarter ended September 30,
Prepayment speed (1)			9.6	%	13.9
Discount rate			7.5		7.3
Cost to service ($ per loan) (2)		$	181		169
Nine months ended September 30,
Prepayment speed (1)			11.2	%	13.4
Discount rate			7.2		7.3
Cost to service ($ per loan) (2)		$	187		143
The prepayment speed assumption for residential mortgage servicing rights includes a blend of prepayment speeds and default rates. Prepayment speed assumptions are influenced by mortgage interest rate inputs as well as our estimation of drivers of borrower behavior.
Includes costs to service and unreimbursed foreclosure costs.
During the third quarter and first nine months of 2013 we transferred $1.1 billion and $4.3 billion, respectively, in fair value of commercial mortgages to unconsolidated VIEs and recorded the transfers as sales, compared with $1.2 billion and $2.2 billion in the third quarter and first nine months of 2012, respectively. These transfers resulted in gains of $29 million and $129 million in the third quarter and first nine months of 2013, respectively, because the loans were carried at LOCOM, compared with gains of $74 million and $113 million in the third quarter and first nine months of 2012, respectively. In connection with these transfers, in the first nine months of 2013 we recorded a servicing asset of $14 million, initially measured at fair value using a Level 3 measurement technique, and securities available-for-sale of $54 million, classified as Level 2. In the first nine months of 2012, we recorded a servicing asset of $9 million and securities available-for-sale of $41 million.
The following table provides key economic assumptions and the sensitivity of the current fair value of residential mortgage servicing rights and other retained interests to immediate adverse changes in those assumptions. “Other interests held” relate predominantly to residential and commercial mortgage loan securitizations. Residential mortgage-backed securities retained in securitizations issued through GSEs, such as FNMA, FHLMC and GNMA, are excluded from the table because these securities have a remote risk of credit loss due to the GSE guarantee. These securities also have economic characteristics similar to GSE mortgage-backed securities that we purchase, which are not included in the table. Subordinated interests include only those bonds whose credit rating was below AAA by a major rating agency at issuance. Senior interests include only those bonds whose credit rating was AAA by a major rating agency at issuance. The information presented excludes trading positions held in inventory.
								Other interests held
					Residential
					mortgage		Interest-				Consumer				Commercial (2)
					servicing			only		Subordinated			Senior	Subordinated		Senior
($ in millions, except cost to service amounts)						rights (1)		strips			bonds		bonds		bonds	bonds
Fair value of interests held at September 30, 2013					$	14,501		147			40		-		256	613
Expected weighted-average life (in years)						6		3.9			5.9		-		4.3	6.6
Key economic assumptions:
	Prepayment speed assumption (3)					11.7	%	10.6			6.7		-
		Decrease in fair value from:
			10% adverse change		$	888		3			-		-
			25% adverse change			2,113		7			-		-
	Discount rate assumption					7.6	%	18.1			4.6		-		9.5	4
		Decrease in fair value from:
			100 basis point increase		$	784		3			2		-		9	33
			200 basis point increase			1,499		5			4		-		18	63
	Cost to service assumption ($ per loan)					198
		Decrease in fair value from:
			10% adverse change			606
			25% adverse change			1,514
	Credit loss assumption										0.4	%	-		1.5	-
		Decrease in fair value from:
			10% higher losses							$	-		-		4	-
			25% higher losses								-		-		6	-
Fair value of interests held at December 31, 2012					$	11,538		187			40		-		249	982
Expected weighted-average life (in years)						4.8		4.1			5.9		-		4.7	5.3
Key economic assumptions:
Prepayment speed assumption (3)						15.7	%	10.6			6.8		-
	Decrease in fair value from:
		10% adverse change			$	869		5			-		-
		25% adverse change				2,038		12			-		-
	Discount rate assumption					7.4	%	16.9			8.9		-		3.5	2.2
		Decrease in fair value from:
			100 basis point increase		$	562		4			2		-		12	43
			200 basis point increase			1,073		8			4		-		21	84
	Cost to service assumption ($ per loan)					219
		Decrease in fair value from:
			10% adverse change			615
			25% adverse change			1,537
	Credit loss assumption										0.4	%	-		10	-
		Decrease in fair value from:
			10% higher losses							$	-		-		12	-
			25% higher losses								-		-		19	-
See narrative following this table for a discussion of commercial mortgage servicing rights.
Prepayment speed assumptions do not significantly impact the value of commercial mortgage securitization bonds as the underlying commercial mortgage loans experience significantly lower prepayments due to certain contractual restrictions, impacting the borrower's ability to prepay the mortgage.
The prepayment speed assumption for residential mortgage servicing rights includes a blend of prepayment speeds and default rates. Prepayment speed assumptions are influenced by mortgage interest rate inputs as well as our estimation of drivers of borrower behavior.
In addition to residential mortgage servicing rights (MSRs) included in the previous table, we have a small portfolio of commercial MSRs with a fair value of $1.5 billion and $1.4 billion at September 30, 2013, and December 31, 2012, respectively. The nature of our commercial MSRs, which are carried at LOCOM, is different from our residential MSRs. Prepayment activity on serviced loans does not significantly impact the value of commercial MSRs because, unlike residential mortgages, commercial mortgages experience significantly lower prepayments due to certain contractual restrictions, impacting the borrower's ability to prepay the mortgage. Additionally, for our commercial MSR portfolio, we are typically master/primary servicer, but not the special servicer, who is separately responsible for the servicing and workout of delinquent and foreclosed loans. It is the special servicer, similar to our role as servicer of residential mortgage loans, who is affected by higher servicing and foreclosure costs due to an increase in delinquent and foreclosed loans. Accordingly, prepayment speeds and costs to service are not key assumptions for commercial MSRs as they do not significantly impact the valuation. The primary economic driver impacting the fair value of our commercial MSRs is forward interest rates, which are derived from market observable yield curves used to price capital markets instruments. Market interest rates most significantly affect interest earned on custodial deposit balances. The sensitivity of the current fair value to an immediate adverse 25% change in the assumption about interest earned on deposit balances at September 30, 2013, and December 31, 2012, results in a decrease in fair value of $179 million and $139 million, respectively. See Note 8 for further information on our commercial MSRs.
The sensitivities in the preceding paragraph and table are hypothetical and caution should be exercised when relying on this data. Changes in value based on variations in assumptions generally cannot be extrapolated because the relationship of the change in the assumption to the change in value may not be linear. Also, the effect of a variation in a particular assumption on the value of the other interests held is calculated independently without changing any other assumptions. In reality, changes in one factor may result in changes in others (for example, changes in prepayment speed estimates could result in changes in the credit losses), which might magnify or counteract the sensitivities.
The following table presents information about the principal balances of off-balance sheet securitized loans, including residential mortgages sold to FNMA, FHLMC, GNMA and securitizations where servicing is our only form of continuing involvement. Delinquent loans include loans 90 days or more past due and still accruing interest as well as nonaccrual loans. In securitizations where servicing is our only form of continuing involvement, we would only experience a loss if required to repurchase a delinquent loan due to a breach in representations and warranties associated with our loan sale or servicing contracts.
												Net charge-offs
						Total loans			Delinquent loans			Nine months ended
						Sept. 30,	Dec. 31,		Sept. 30,	Dec. 31,		Sept. 30,
(in millions)						2013	2012		2013	2012		2013	2012
Commercial:
	Real estate mortgage				$	123,093	128,564		8,846	12,216		465	323
		Total commercial				123,093	128,564		8,846	12,216		465	323
Consumer:
	Real estate 1-4 family first mortgage					1,312,533	1,283,504		18,428	21,574		654	876
	Real estate 1-4 family junior lien mortgage					1	1		-	-		-	-
	Other revolving credit and installment					1,833	2,034		93	110		-	-
		Total consumer				1,314,367	1,285,539		18,521	21,684		654	876
			Total off-balance sheet securitized loans (1)		$	1,437,460	1,414,103		27,367	33,900		1,119	1,199
At September 30, 2013 and December 31, 2012, the table includes total loans of $1.3 trillion at both dates and delinquent loans of $15.2 billion and $17.4 billion, respectively for FNMA, FHLMC and GNMA. Net charge-offs exclude loans sold to FNMA, FHLMC and GNMA as we do not service or manage the underlying real estate upon foreclosure and, as such, do not have access to net charge-off information.
Transactions with Consolidated VIEs and Secured Borrowings
The following table presents a summary of transfers of financial assets accounted for as secured borrowings and involvements with consolidated VIEs. “Consolidated assets” are presented using GAAP measurement methods, which may include fair value, credit impairment or other adjustments, and therefore in some instances will differ from “Total VIE assets.” For VIEs that obtain exposure synthetically through derivative instruments, the remaining notional amount of the derivative is included in “Total VIE assets.” On the consolidated balance sheet, we separately disclose the consolidated assets of certain VIEs that can only be used to settle the liabilities of those VIEs.
								Carrying value
						Total				Third
						VIE	Consolidated			party	Noncontrolling			Net
(in millions)						assets		assets		liabilities		interests		assets
30-Sep-13
Secured borrowings:
	Municipal tender option bond securitizations				$	13,567		10,906		-8,189		-		2,717
	Commercial real estate loans					596		596		-378		-		218
	Residential mortgage securitizations					5,447		5,762		-5,511		-		251
		Total secured borrowings				19,610		17,264		-14,078		-		3,186
Consolidated VIEs:
	Nonconforming residential
		mortgage loan securitizations				7,141		6,332		-2,381		-		3,951
	Multi-seller commercial paper conduit					-		-		-		-		-
	Structured asset finance					60		60		-18		-		42
	Investment funds					1,565		1,565		-68		-		1,497
	Other					2,270		2,198		-934		-7		1,257
		Total consolidated VIEs				11,036		10,155		-3,401		-7		6,747
			Total secured borrowings and consolidated VIEs		$	30,646		27,419		-17,479		-7		9,933
31-Dec-12
Secured borrowings:
	Municipal tender option bond securitizations				$	16,782		15,130		-13,248		-		1,882
	Commercial real estate loans					975		975		-696		-		279
	Residential mortgage securitizations					5,757		6,240		-5,824		-		416
		Total secured borrowings				23,514		22,345		-19,768		-		2,577
Consolidated VIEs:
	Nonconforming residential
		mortgage loan securitizations				8,633		7,707		-2,933		-		4,774
	Multi-seller commercial paper conduit					2,059		2,036		-2,053		-		-17
	Structured asset finance					71		71		-17		-		54
	Investment funds					1,837		1,837		-2		-		1,835
	Other					3,454		2,974		-1,438		-48		1,488
		Total consolidated VIEs				16,054		14,625		-6,443		-48		8,134
			Total secured borrowings and consolidated VIEs		$	39,568		36,970		-26,211		-48		10,711
In addition to the transactions included in the previous table, at both September 30, 2013, and December 31, 2012, we had approximately $6.0 billion of private placement debt financing issued through a consolidated VIE. The issuance is classified as long-term debt in our consolidated financial statements. At September 30, 2013, and December 31, 2012, we pledged approximately $6.7 billion and $6.4 billion in loans (principal and interest eligible to be capitalized), $169 million and $179 million in securities available for sale, and $180 million and $138 million in cash and cash equivalents to collateralize the VIE's borrowings, respectively. These assets were not transferred to the VIE, and accordingly we have excluded the VIE from the previous table.
During second quarter 2013, we redeemed the outstanding commercial paper issued from our multi-seller conduit to third party investors at par. The conduit was dissolved in July 2013.
For complete descriptions of our accounting for transfers accounted for as secured borrowings and involvements with consolidated VIEs see Note 8 in our 2012 Form 10-K.

Mortgage_Banking_Activities

Mortgage Banking Activities	9 Months Ended
	Sep. 30, 2013
Mortgage Banking Activities [Abstract]	'
Mortgage Banking Activities	'
	Note 8: Mortgage Banking Activities
	Mortgage banking activities, included in the Community Banking and Wholesale Banking operating segments, consist of residential and commercial mortgage originations, sale activity and servicing.
	We apply the amortization method to commercial MSRs and apply the fair value method to residential MSRs. The changes in MSRs measured using the fair value method were:
							Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Fair value, beginning of period					$	14,185	12,081		11,538	12,603
		Servicing from securitizations or asset transfers (1)					954	1,173		2,949	4,088
		Sales					-	-		-583	-293
			Net additions				954	1,173		2,366	3,795
		Changes in fair value:
			Due to changes in valuation model inputs or assumptions:
				Mortgage interest rates (2)			61	-1,131		3,314	-2,480
				Servicing and foreclosure costs (3)			-34	-350		-174	-550
				Discount rates (4)			-	-		-	-344
				Prepayment estimates and other (5)			-240	54		-725	158
					Net changes in valuation model inputs or assumptions		-213	-1,427		2,415	-3,216
			Other changes in fair value (6)				-425	-871		-1,818	-2,226
				Total changes in fair value			-638	-2,298		597	-5,442
	Fair value, end of period					$	14,501	10,956		14,501	10,956
	Nine months ended September 30, 2012, includes $315 million residential MSRs transferred from amortized MSRs that we elected to carry at fair value effective January 1, 2012.
	Primarily represents prepayment speed changes due to changes in mortgage interest rates, but also includes other valuation changes due to changes in mortgage interest rates (such as changes in estimated interest earned on custodial deposit balances).
	Includes costs to service and unreimbursed foreclosure costs.
	Reflects discount rate assumption change, excluding portion attributable to changes in mortgage interest rates; the nine months ended September 30, 2012, change reflects increased capital return requirements from market participants.
	Represents changes driven by other valuation model inputs or assumptions including prepayment speed estimation changes and other assumption updates.
	Prepayment speed estimation changes are influenced by observed changes in borrower behavior that occur independent of interest rate changes.
	Represents changes due to collection/realization of expected cash flows over time.
	The changes in amortized MSRs were:
						Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)					2013	2012		2013	2012
	Balance, beginning of period				$	1,176	1,130		1,160	1,445
		Purchases				59	42		112	134
		Servicing from securitizations or asset transfers (1)				32	30		119	-263
		Amortization				-63	-58		-187	-172
	Balance, end of period					1,204	1,144		1,204	1,144
	Valuation allowance:
	Balance, beginning of period					-	-		-	-37
		Reversal of provision for MSRs in excess of fair value (1)				-	-		-	37
	Balance, end of period (2)					-	-		-	-
	Amortized MSRs, net				$	1,204	1,144		1,204	1,144
	Fair value of amortized MSRs (3):
		Beginning of period			$	1,533	1,450		1,400	1,756
		End of period				1,525	1,399		1,525	1,399
	Nine months ended September 30, 2012, is net of $350 million ($313 million after valuation allowance) of residential MSRs that we elected to carry at fair value effective January 1, 2012. A cumulative adjustment of $2 million to fair value was recorded in retained earnings at January 1, 2012.
	Commercial amortized MSRs are evaluated for impairment purposes by the following risk strata: agency (GSEs) and non-agency. There was no valuation allowance recorded for the periods presented on the commercial amortized MSRs. Residential amortized MSRs are evaluated for impairment purposes by the following risk strata: mortgages sold to GSEs (FHLMC and FNMA) and mortgages sold to GNMA, each by interest rate stratifications. For nine months ended September 30, 2012, valuation allowance of $37 million for residential MSRs was reversed upon election to carry at fair value.
	Represent commercial amortized MSRs. The beginning of period balance for nine months ended September 30, 2012 also includes fair value of $316 million in residential amortized MSRs.
	We present the components of our managed servicing portfolio in the following table at unpaid principal balance for loans serviced and subserviced for others and at book value for owned loans serviced.
							Sept. 30,		Dec. 31,
	(in billions)						2013		2012
	Residential mortgage servicing:
		Serviced for others				$	1,494		1,498
		Owned loans serviced					344		368
		Subservicing					6		7
			Total residential servicing				1,844		1,873
	Commercial mortgage servicing:
		Serviced for others					416		408
		Owned loans serviced					106		106
		Subservicing					11		13
			Total commercial servicing				533		527
				Total managed servicing portfolio		$	2,377		2,400
	Total serviced for others					$	1,910		1,906
	Ratio of MSRs to related loans serviced for others						0.82	%	0.67
	The components of mortgage banking noninterest income were:
									Quarter ended Sept. 30,			Nine months ended Sept. 30,
(in millions)								2013	2012		2013	2012
Servicing income, net:
	Servicing fees:
		Contractually specified servicing fees					$	1,108	1,136		3,335	3,448
		Late charges						56	66		174	195
		Ancillary fees						91	89		258	229
		Unreimbursed direct servicing costs (1)						-289	-307		-774	-807
			Net servicing fees					966	984		2,993	3,065
	Changes in fair value of MSRs carried at fair value:
		Due to changes in valuation model inputs or assumptions (2)						-213	-1,427		2,415	-3,216
		Other changes in fair value (3)						-425	-871		-1,818	-2,226
			Total changes in fair value of MSRs carried at fair value					-638	-2,298		597	-5,442
	Amortization							-63	-58		-187	-172
	Net derivative gains (losses) from economic hedges (4)							239	1,569		-2,192	3,677
				Total servicing income, net				504	197		1,211	1,128
Net gains on mortgage loan origination/sales activities								1,104	2,610		5,993	7,442
					Total mortgage banking noninterest income		$	1,608	2,807		7,204	8,570
Market-related valuation changes to MSRs, net of hedge results (2) + (4)							$	26	142		223	461
Primarily associated with foreclosure expenses and other interest costs.
Refer to the changes in fair value of MSRs table in this Note for more detail.
Represents changes due to collection/realization of expected cash flows over time.
Represents results from free-standing derivatives (economic hedges) used to hedge the risk of changes in fair value of MSRs. See Note 12 – Free-Standing Derivatives for additional discussion and detail.
The table below summarizes the changes in our liability for mortgage loan repurchase losses. This liability is in “Accrued expenses and other liabilities” in our consolidated balance sheet and the provision for repurchase losses reduces net gains on mortgage loan origination/sales activities. Because the level of mortgage loan repurchase losses depends upon economic factors, investor demand strategies and other external conditions that may change over the life of the underlying loans, the level of the liability for mortgage loan repurchase losses is difficult to estimate and requires considerable management judgment. We maintain regular contact with the GSEs, the Federal Housing Finance Agency (FHFA), and other significant investors to monitor their repurchase demand practices and issues as part of our process to update our repurchase liability estimate as new information becomes available. The Company reached a settlement with FHLMC on September 27, 2013 that resolved substantially all repurchase liabilities associated with loans sold to FHLMC prior to January 1, 2009.
Because of the uncertainty in the various estimates underlying the mortgage repurchase liability, there is a range of losses in excess of the recorded mortgage repurchase liability that is reasonably possible. The estimate of the range of possible loss for representations and warranties does not represent a probable loss, and is based on currently available information, significant judgment, and a number of assumptions that are subject to change. The high end of this range of reasonably possible losses in excess of our recorded liability was $1.4 billion at September 30, 2013, and was determined based upon modifying the assumptions (particularly to assume significant changes in investor repurchase demand practices) utilized in our best estimate of probable loss to reflect what we believe to be the high end of reasonably possible adverse assumptions.
						Quarter			Nine months
						ended Sept. 30,			ended Sept. 30,
(in millions)						2013	2012		2013	2012
Balance, beginning of period					$	2,222	1,764		2,206	1,326
	Provision for
		repurchase losses:
		Loan sales				28	75		127	209
		Change in estimate (1)				-	387		275	1,352
			Total additions			28	462		402	1,561
	Losses (2)					-829	-193		-1,187	-854
Balance, end of period					$	1,421	2,033		1,421	2,033
Results from such factors as changes in investor demand and mortgage insurer practices, credit deterioration, and changes in the financial stability of correspondent lenders.
Quarter and nine months ended September 30, 2013, reflect $746 million as a result of the settlement reached with FHLMC that resolved substantially all repurchase liabilities associated with loans sold to FHLMC prior to January 1, 2009.

Intangible_Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2013
Intangible Assets [Abstract]	'
Intangible Assets	'
	Note 9: Intangible Assets
	The gross carrying value of intangible assets and accumulated amortization was:
						30-Sep-13						31-Dec-12
							Gross			Net		Gross			Net
							carrying	Accumulated		carrying		carrying	Accumulated		carrying
	(in millions)						value	amortization		value		value	amortization		value
	Amortized intangible assets (1):
		MSRs (2)				$	2,548		-1,344	1,204		2,317		-1,157	1,160
		Core deposit intangibles					12,834		-7,850	4,984		12,836		-6,921	5,915
		Customer relationship and other intangibles					3,146		-1,995	1,151		3,147		-1,795	1,352
			Total amortized intangible assets			$	18,528		-11,189	7,339		18,300		-9,873	8,427
	Unamortized intangible assets:
		MSRs (carried at fair value) (2)				$	14,501					11,538
		Goodwill					25,637					25,637
		Trademark					14					14
	Excludes fully amortized intangible assets.
	See Note 8 for additional information on MSRs.
	The following table provides the current year-to-date period and estimated future amortization expense for amortized intangible assets. We based our projections of amortization expense shown below on existing asset balances at September 30, 2013. Future amortization expense may vary from these projections.
						Customer
					Core	relationship
			Amortized		deposit	and other
	(in millions)		MSRs	intangibles		intangibles			Total
	Nine months ended September 30, 2013 (actual)	$	187		932		200		1,319
	Estimate for the remainder of 2013	$	63		310		66		439
	Estimate for year ended December 31,
	2014		228		1,113		250		1,591
	2015		197		1,022		227		1,446
	2016		162		919		212		1,293
	2017		121		851		194		1,166
	2018		88		769		184		1,041
	For our goodwill impairment analysis, we allocate all of the goodwill to the individual operating segments. We identify reporting units that are one level below an operating segment (referred to as a component), and distinguish these reporting units based on how the segments and components are managed, taking into consideration the economic characteristics, nature of the products and customers of the components. At the time we acquire a business, we allocate goodwill to applicable reporting units based on their relative fair value, and if we have a significant business reorganization, we may reallocate the goodwill. See Note 18 for further information on management reporting.
	The following table shows the allocation of goodwill to our operating segments for purposes of goodwill impairment testing.
									Wealth,
					Community		Wholesale	Brokerage and		Consolidated
	(in millions)				Banking		Banking		Retirement		Company
	31-Dec-11			$	17,924		6,820		371		25,115
		Goodwill from business combinations			-2		524		-		522
	30-Sep-12			$	17,922		7,344		371		25,637
	December 31, 2012 and September 30, 2013			$	17,922		7,344		371		25,637

Guarantees_Pledged_Assets_and_

Guarantees, Pledged Assets and Collateral	9 Months Ended
	Sep. 30, 2013
Guarantees, Pledged Assets and Collateral [Abstract]	'
Guarantees, Pledged Assets and Collateral	'
	Note 10: Guarantees, Pledged Assets and Collateral
	Guarantees are contracts that contingently require us to make payments to a guaranteed party based on an event or a change in an underlying asset, liability, rate or index. Guarantees are generally in the form of standby letters of credit, securities lending and other indemnifications, liquidity agreements, written put options, recourse obligations, residual value guarantees, and contingent consideration. The following table shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts.
					30-Sep-13
						Maximum exposure to loss
							Expires after	Expires after
						Expires in	one year	three years	Expires		Non-
					Carrying	one year	through	through	after five		investment
	(in millions)				value	or less	three years	five years	years	Total	grade
	Standby letters of credit (1)			$	54	15,659	12,211	3,930	2,719	34,519	9,039
	Securities lending and
		other indemnifications			-	2	7	37	3,236	3,282	40
	Liquidity agreements (2)				-	-	-	-	14	14	4
	Written put options (3)				981	3,766	4,465	2,375	2,495	13,101	4,409
	Loans and MHFS sold with recourse				87	109	464	813	4,963	6,349	3,654
	Contingent consideration				31	16	96	-	-	112	110
	Other guarantees				3	982	30	17	1,029	2,058	3
		Total guarantees		$	1,156	20,534	17,273	7,172	14,456	59,435	17,259
					31-Dec-12
						Maximum exposure to loss
							Expires after	Expires after
						Expires in	one year	three years			Non-
					Carrying	one year	through	through	Expires after		investment
	(in millions)				value	or less	three years	five years	five years	Total	grade
	Standby letters of credit (1)			$	42	19,463	11,782	6,531	1,983	39,759	11,331
	Securities lending and
		other indemnifications			-	3	7	20	2,511	2,541	118
	Liquidity agreements (2)				-	-	-	-	3	3	3
	Written put options (2)(3)				1,427	2,951	3,873	2,475	2,575	11,874	3,953
	Loans and MHFS sold with recourse				99	443	357	647	4,426	5,873	3,905
	Contingent consideration				35	11	24	94	-	129	129
	Other guarantees				3	677	26	1	717	1,421	4
		Total guarantees		$	1,606	23,548	16,069	9,768	12,215	61,600	19,443
	Total maximum exposure to loss includes direct pay letters of credit (DPLCs) of $16.4 billion and $18.5 billion at September 30, 2013 and December 31, 2012, respectively. We issue DPLCs to provide credit enhancements for certain bond issuances. Beneficiaries (bond trustees) may draw upon these instruments to make scheduled principal and interest payments, redeem all outstanding bonds because a default event has occurred, or for other reasons as permitted by the agreement. We also originate multipurpose lending commitments under which borrowers have the option to draw on the facility in one of several forms, including as a standby letter of credit. Total maximum exposure to loss includes the portion of these facilities for which we have issued standby letters of credit under the commitments.
	Certain of these agreements included in this table are related to off-balance sheet entities and, accordingly, are also disclosed in Note 7.
	Written put options, which are in the form of derivatives, are also included in the derivative disclosures in Note 12.
	“Maximum exposure to loss” and “Non-investment grade” are required disclosures under GAAP. Non-investment grade represents those guarantees on which we have a higher risk of being required to perform under the terms of the guarantee. If the underlying assets under the guarantee are non-investment grade (that is, an external rating that is below investment grade or an internal credit default grade that is equivalent to a below investment grade external rating), we consider the risk of performance to be high. Internal credit default grades are determined based upon the same credit policies that we use to evaluate the risk of payment or performance when making loans and other extensions of credit. These credit policies are further described in Note 5.
	Maximum exposure to loss represents the estimated loss that would be incurred under an assumed hypothetical circumstance, despite what we believe is its extremely remote possibility, where the value of our interests and any associated collateral declines to zero. Maximum exposure to loss estimates in the table above do not reflect economic hedges or collateral we could use to offset or recover losses we may incur under our guarantee agreements. Accordingly, this required disclosure is not an indication of expected loss. We believe the carrying value, which is either fair value for derivative related products or the allowance for lending related commitments, is more representative of our exposure to loss than maximum exposure to loss.
	Standby letters of credit We issue standby letters of credit, which include performance and financial guarantees, for customers in connection with contracts between our customers and third parties. Standby letters of credit are agreements where we are obligated to make payment to a third party on behalf of a customer in the event the customer fails to meet their contractual obligations. We consider the credit risk in standby letters of credit and commercial and similar letters of credit in determining the allowance for credit losses. Standby letters of credit include direct pay letters of credit we issue to provide credit enhancements for certain bond issuances.
	Securities lending and other indemnifications As a securities lending agent, we lend debt and equity securities from participating institutional clients' portfolios to third-party borrowers. These arrangements are for an indefinite period of time whereby we indemnify our clients against default by the borrower in returning these lent securities. This indemnity is supported by collateral received from the borrowers and is generally in the form of cash or highly liquid securities that are marked to market daily. There was $412 million at September 30, 2013 and $443 million at December 31, 2012, in collateral supporting loaned securities with values of $399 million and $436 million, respectively.
	We use certain third party clearing agents to clear and settle transactions on behalf of some of our institutional brokerage customers. We indemnify the clearing agents against loss that could occur for non-performance by our customers on transactions that are not sufficiently collateralized. Transactions subject to the indemnifications may include customer obligations related to the settlement of margin accounts and short positions, such as written call options and securities borrowing transactions. Outstanding customer obligations were $717 million and $579 million and the related collateral was $3.6 billion and $3.1 billion at September 30, 2013, and December 31, 2012, respectively. Our estimate of maximum exposure to loss, which requires judgment regarding the range and likelihood of future events, was $2.9 billion as of September 30, 2013, and $2.1 billion as of December 31, 2012.
	We enter into other types of indemnification agreements in the ordinary course of business under which we agree to indemnify third parties against any damages, losses and expenses incurred in connection with legal and other proceedings arising from relationships or transactions with us. These relationships or transactions include those arising from service as a director or officer of the Company, underwriting agreements relating to our securities, acquisition agreements and various other business transactions or arrangements. Because the extent of our obligations under these agreements depends entirely upon the occurrence of future events, we are unable to determine our potential future liability under these agreements. We do, however, record a liability for residential mortgage loans that we expect to repurchase pursuant to various representations and warranties. See Note 8 for additional information on the liability for mortgage loan repurchase losses.
	Liquidity agreements We provide liquidity to certain off-balance sheet entities that hold securitized fixed-rate municipal bonds and consumer or commercial assets that are partially funded with the issuance of money market and other short-term notes. See Note 7 for additional information on these arrangements.
	Written put options Written put options are contracts that give the counterparty the right to sell to us an underlying instrument held by the counterparty at a specified price, and include options, floors, caps and credit default swaps. These written put option contracts generally permit net settlement. While these derivative transactions expose us to risk in the event the option is exercised, we manage this risk by entering into offsetting trades or by taking short positions in the underlying instrument. We offset substantially all put options written to customers with purchased options. Additionally, for certain of these contracts, we require the counterparty to pledge the underlying instrument as collateral for the transaction. Our ultimate obligation under written put options is based on future market conditions and is only quantifiable at settlement. See Note 12 for additional information regarding written derivative contracts.
	Loans AND MHFS SOLD with recourse In certain loan sales or securitizations, we provide recourse to the buyer whereby we are required to indemnify the buyer for any loss on the loan up to par value plus accrued interest. We provide recourse, predominantly to the GSEs, on loans sold under various programs and arrangements. Primarily all of these programs and arrangements require that we share in the loans' credit exposure for their remaining life by providing recourse to the GSE, up to 33.33% of actual losses incurred on a pro-rata basis, in the event of borrower default. Under the remaining recourse programs and arrangements, if certain events occur within a specified period of time from transfer date, we have to provide limited recourse to the buyer to indemnify them for losses incurred for the remaining life of the loans. The maximum exposure to loss reported in the accompanying table represents the outstanding principal balance of the loans sold or securitized that are subject to recourse provisions or the maximum losses per the contractual agreements. However, we believe the likelihood of loss of the entire balance due to these recourse agreements is remote and amounts paid can be recovered in whole or in part from the sale of collateral. We repurchased $8 million and $26 million respectively, of loans associated with these agreements in the third quarter and first nine months of 2013, and $5 million and $21 million respectively in the same periods of 2012. We also provide representation and warranty guarantees on loans sold under the various recourse programs and arrangements. Our loss exposure relative to these guarantees is separately considered and provided for, as necessary, in determination of our liability for loan repurchases due to breaches of representation and warranties. See Note 8 for additional information on the liability for mortgage loan repurchase losses.
	Contingent consideration In connection with certain brokerage, asset management, insurance agency and other acquisitions we have made, the terms of the acquisition agreements provide for deferred payments or additional consideration, based on certain performance targets.
	Other Guarantees We are members of exchanges and clearing houses that we use to clear our trades and those of our customers. It is common that all members in these organizations are required to collectively guarantee the performance of other members. Our obligations under the guarantees are based on either a fixed amount or a multiple of the collateral we are required to maintain with these organizations. We have not recorded a liability for these arrangements as of the dates presented in the previous table because we believe the likelihood of loss is remote.
	We also have contingent performance arrangements related to various customer relationships and lease transactions. We are required to pay the counterparties to these agreements if third parties default on certain obligations.
	Pledged Assets
	As part of our liquidity management strategy, we pledge assets to secure trust and public deposits, borrowings and letters of credit from the FHLB and FRB, securities sold under agreements to repurchase (repurchase agreements), and for other purposes as required or permitted by law or insurance statutory requirements. The types of collateral we pledge include securities issued by federal agencies, government-sponsored entities (GSEs), domestic and foreign companies and various commercial and consumer loans. The following table provides the total carrying amount of pledged assets by asset type, of which substantially all are pursuant to agreements that do not permit the secured party to sell or repledge the collateral. The table excludes pledged consolidated VIE assets of $10.2 billion and $14.6 billion at September 30, 2013, and December 31, 2012, respectively, which can only be used to settle the liabilities of those entities. See Note 7 for additional information on consolidated VIE assets.
					Sept. 30,		Dec. 31,
	(in millions)				2013		2012
	Trading assets and other (1)			$	33,808		28,031
	Securities available for sale (2)				99,291		96,018
	Loans (3)				378,004		360,171
		Total pledged assets		$	511,103		484,220
	-1	Represent assets pledged to collateralize repurchase agreements and other securities financings. Balance includes $32.5 billion and $27.4 billion at September 30, 2013, and December 31, 2012, respectively, under agreements that permit the secured parties to sell or repledge the collateral.
	-2	Includes $8.3 billion and $8.4 billion in collateral for repurchase agreements at September 30, 2013, and December 31, 2012, respectively, which are pledged under agreements that do not permit the secured parties to sell or repledge the collateral.
	-3	Represent loans carried at amortized cost, which are pledged under agreements that do not permit the secured parties to sell or repledge the collateral.
	Offsetting of Resale and Repurchase Agreements and Securities Borrowing and Lending Agreements
	The table below presents resale and repurchase agreements subject to master repurchase agreements (MRA) and securities borrowing and lending agreements subject to master securities lending agreements (MSLA). We account for transactions subject to these agreements as collateralized financings and those with a single counterparty are presented net on our balance sheet, provided certain criteria are met that permit balance sheet netting under U.S. GAAP. Most transactions subject to these agreements do not meet those criteria and thus are not eligible for balance sheet netting.
	Collateral we pledged consists of non-cash instruments, such as securities or loans, and is not netted on the balance sheet against the related collateralized liability. Collateral we received includes securities or loans and is not recognized on our balance sheet. Collateral received or pledged may be increased or decreased over time to maintain certain contractual thresholds as the assets underlying each arrangement fluctuate in value. Generally, these agreements require collateral to exceed the asset or liability recognized on the balance sheet. The following table includes the amount of collateral pledged or received related to exposures subject to enforceable MRAs or MSLAs. While these agreements are typically over-collateralized, U.S. GAAP requires disclosure in this table to limit the amount of such collateral to the amount of the related recognized asset or liability for each counterparty.
	In addition to the amounts included in the table below, we also have balance sheet netting related to derivatives that are disclosed within Note 12.
					Sept. 30,		Dec. 31,
(in millions)				2013		2012
Assets:
Resale and securities borrowing agreements
		Gross amounts recognized	$	43,325		45,847
		Gross amounts offset in consolidated balance sheet (1)		-5,101		-2,561
		Net amounts in consolidated balance sheet (2)		38,224		43,286
		Noncash collateral not recognized in consolidated balance sheet (3)		-37,920		-42,920
	Net amount (4)		$	304		366
Liabilities:
Repurchase and securities lending agreements
		Gross amounts recognized	$	41,208		35,876
		Gross amounts offset in consolidated balance sheet (1)		-5,101		-2,561
		Net amounts in consolidated balance sheet (5)		36,107		33,315
		Noncash collateral pledged but not netted in consolidated balance sheet (6)		-35,677		-33,050
	Net amount (7)		$	430		265
-1	Represents recognized amount of resale and repurchase agreements with counterparties subject to enforceable MRAs or MSLAs that have been offset in the consolidated balance sheet.
-2	At September 30, 2013 and December 31, 2012, includes $27.0 billion and $33.8 billion, respectively, classified on our consolidated balance sheet in Federal funds sold, securities purchased under resale agreements and other short-term investments and $11.2 billion and $9.5 billion, respectively, in Loans.
-3	Represents the fair value of non-cash collateral we have received under enforceable MRAs or MSLAs, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. At September 30, 2013 and December 31, 2012, we have received total collateral with a fair value of $48.2 billion and $46.6 billion, respectively, all of which, we have the right to sell or repledge. These amounts include securities we have sold or repledged to others with a fair value of $27.5 billion at September 30, 2013 and $29.7 billion at December 31, 2012.
-4	Represents the amount of our exposure that is not collateralized and/or is not subject to an enforceable MRA or MSLA.
-5	Amount is classified in Short-Term Borrowings on our consolidated balance sheet.
-6	Represents the fair value of non-cash collateral we have pledged, related to enforceable MRAs or MSLAs, limited for table presentation purposes to the amount of the recognized liability owed to each counterparty. At September 30, 2013 and December 31, 2012, we have pledged total collateral with a fair value of $42.1 billion and $36.4 billion, respectively, of which, the counterparty does not have the right to sell or repledge $9.6 billion as of September 30 2013 and $9.1 billion as of December 31, 2012.
-7	Represents the amount of our exposure that is not covered by pledged collateral and/or is not subject to an enforceable MRA or MSLA.

Legal_Actions

Legal Actions	9 Months Ended
	Sep. 30, 2013
Legal Actions [Abstract]	'
Legal Actions	'
	Note 11: Legal Actions
	The following supplements our discussion of certain matters previously reported in Part I, Item 3 (Legal Proceedings) of our 2012 Form 10-K and Part II, Item 1 (Legal Proceedings) of our 2013 first and second quarter Quarterly Reports on Form 10-Q for events occurring during third quarter 2013.
	FHA INSURANCE LITIGATION On October 9, 2012, the United States filed a complaint, captioned United States of America v. Wells Fargo Bank, N.A., in the U.S. District Court for the Southern District of New York. The complaint makes claims with respect to Wells Fargo's Federal Housing Administration (FHA) lending program for the period 2001 to 2010. The complaint alleges, among other allegations, that Wells Fargo improperly certified certain FHA mortgage loans for United States Department of Housing and Urban Development (HUD) insurance that did not qualify for the program, and therefore Wells Fargo should not have received insurance proceeds from HUD when some of the loans later defaulted. The complaint further alleges Wells Fargo knew some of the mortgages did not qualify for insurance and did not disclose the deficiencies to HUD before making insurance claims. On December 1, 2012, Wells Fargo filed a motion in the U.S. District Court for the District of Columbia seeking to enforce a release of Wells Fargo given by the United States, which was denied on February 12, 2013. On April 11, 2013, Wells Fargo appealed the decision to the U.S. Court of Appeals for the District of Columbia Circuit, and filed its initial appellate brief on September 20, 2013. On December 14, 2012, the United States filed an amended complaint. On January 16, 2013, Wells Fargo filed a motion in the Southern District of New York to dismiss the amended complaint. On September 24, 2013, the Court entered an order denying the motion with respect to the government's federal statutory claims and granting in part, and denying in part, the motion with respect to the government's common law claims.
	MEDICAL CAPITAL CORPORATION LITIGATION Wells Fargo Bank, N.A. served as indenture trustee for debt issued by affiliates of Medical Capital Corporation, which was placed in receivership at the request of the Securities and Exchange Commission (SEC) in August 2009. Since September 2009, Wells Fargo has been named as a defendant in various class and mass actions brought by holders of Medical Capital Corporation's debt, alleging that Wells Fargo breached contractual and other legal obligations owed to them and seeking unspecified damages. On April 16, 2013, the parties reached a settlement, subject to Court approval, of all claims which provides for Wells Fargo to pay $105 million to the plaintiffs. The Court gave final approval to the settlement on August 12, 2013.
	MORTGAGE-BACKED CERTIFICATES LITIGATION Several securities law based putative class actions were consolidated in the U.S. District Court for the Northern District of California on July 16, 2009, under the caption In re Wells Fargo Mortgage-Backed Certificates Litigation. The case asserted claims against several Wells Fargo mortgage-backed securities trusts, Wells Fargo Bank, N.A. and other affiliated entities, individual employee defendants, along with various underwriters and rating agencies. The plaintiffs alleged that the offering documents contain untrue statements of material fact, or omit to state material facts necessary to make the registration statements and accompanying prospectuses not misleading. The parties agreed to settle the case on May 27, 2011, for $125 million. Final approval of the settlement was entered on November 14, 2011. Some class members, including Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC), opted out of the settlement. Wells Fargo settled the opt out claims of FNMA in first quarter 2013 and settled the opt out claims of FHLMC in third quarter 2013, in each case for an amount that was within a previously established accrual. Both settlements included the Federal Housing Finance Agency, as conservator of FNMA and FHLMC. The combined amount of the settlements was approximately $335 million.
	On October 15, 2010, three actions, captioned Federal Home Loan Bank of Chicago v. Banc of America Funding Corporation, et al. (filed in the Cook County Circuit Court, State of Illinois); Federal Home Loan Bank of Chicago v. Banc of America Securities LLC, et al. (filed in the Superior Court of the State of California for the County of Los Angeles); and Federal Home Loan Bank of Indianapolis v. Banc of America Mortgage America Securities, Inc., et al. (filed in the Superior Court of the State of Indiana for the County of Marion), named multiple defendants, described as issuers/depositors, and underwriters/dealers of private label mortgage-backed securities, in an action asserting claims that defendants used false and misleading statements in offering documents for the sale of such securities. Plaintiffs seek rescission of the sales and damages under state securities and other laws and Section 11 of the Securities Act of 1933. Wells Fargo Asset Securities Corporation, Wells Fargo Bank, N.A. and Wells Fargo & Company were named among the defendants. Wells Fargo has reached a settlement in principle with the Federal Home Loan Bank of Indianapolis to settle the claims against it in the Federal Home Loan Bank of Indianapolis v. Banc of America Mortgage America Securities, Inc., et al. action for an amount within a previously established accrual. Wells Fargo has also reached a settlement in principle with the Federal Home Loan Bank of Chicago to settle the claims against it in the Federal Home Loan Bank of Chicago v. Banc of America Funding Corporation, et al. and Federal Home Loan Bank of Chicago v. Banc of America Securities LLC actions for an amount within a previously established accrual.
	On April 20, 2011, a case captioned Federal Home Loan Bank of Boston v. Ally Financial, Inc., et al., was filed in the Superior Court of the Commonwealth of Massachusetts for the County of Suffolk. The case names, among a large number of parties, Wells Fargo & Company, Wells Fargo Asset Securitization Corporation and Wells Fargo Bank, N.A. as parties and asserts claims that defendants used false and misleading statements in offering documents for the sale of mortgage-backed securities. Wells Fargo settled the claims of the Federal Home Loan Bank of Boston for an amount within a previously established accrual and was dismissed, with prejudice, from the Federal Home Loan Bank of Boston v. Ally Financial, Inc., et al. action on September 30, 2013.
	ORDER OF POSTING LITIGATION On August 10, 2010, the U.S. District Court for the Northern District of California issued an order in Gutierrez v. Wells Fargo Bank, N.A., a case that was not consolidated in the multi-district proceedings, enjoining the bank's use of the high to low posting method for debit card transactions with respect to the plaintiff class of California depositors, directing the bank to establish a different posting methodology and ordering remediation of approximately $203 million. On October 26, 2010, a final judgment was entered in Gutierrez. On October 28, 2010, Wells Fargo appealed to the U.S. Court of Appeals for the Ninth Circuit. On December 26, 2012, the Ninth Circuit reversed the order requiring Wells Fargo to change its order of posting and vacated the portion of the order granting remediation of approximately $203 million on the grounds of federal preemption. The Ninth Circuit affirmed the District Court's finding that Wells Fargo violated a California state law prohibition on fraudulent representations and remanded the case to the District Court for further proceedings. On August 5, 2013, the District Court entered a judgment against Wells Fargo in the approximate amount of $203 million, together with post-judgment interest thereon from October 25, 2010, and, effective as of July 15, 2013, enjoined Wells Fargo from making or disseminating additional misrepresentations about its order of posting of transactions. On August 7, 2013, Wells Fargo appealed the judgment to the Ninth Circuit.
	OUTLOOK When establishing a liability for contingent litigation losses, the Company determines a range of potential losses for each matter that is both probable and estimable, and records the amount it considers to be the best estimate within the range. The high end of the range of reasonably possible potential litigation losses in excess of the Company's liability for probable and estimable losses was $1.0 billion as of September 30, 2013. For these matters and others where an unfavorable outcome is reasonably possible but not probable, there may be a range of possible losses in excess of the established liability that cannot be estimated. Based on information currently available, advice of counsel, available insurance coverage and established reserves, Wells Fargo believes that the eventual outcome of the actions against Wells Fargo and/or its subsidiaries, including the matters described above, will not, individually or in the aggregate, have a material adverse effect on Wells Fargo's consolidated financial position. However, in the event of unexpected future developments, it is possible that the ultimate resolution of those matters, if unfavorable, may be material to Wells Fargo's results of operations for any particular period.

Derivatives

Derivatives	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives	'
	Note 12: Derivatives
	We primarily use derivatives to manage exposure to market risk, including interest rate risk, credit risk and foreign currency risk, and to assist customers with their risk management objectives. We designate derivatives either as hedging instruments in a qualifying hedge accounting relationship (fair value or cash flow hedge) or as free-standing derivatives. Free-standing derivatives include economic hedges that do not qualify for hedge accounting and derivatives held for customer accommodation or other trading purposes.
	Our asset/liability management approach to interest rate, foreign currency and certain other risks includes the use of derivatives. Such derivatives are typically designated as fair value or cash flow hedges, or economic hedges. This helps minimize significant, unplanned fluctuations in earnings, fair values of assets and liabilities, and cash flows caused by interest rate, foreign currency and other market value volatility. This approach involves modifying the repricing characteristics of certain assets and liabilities so that changes in interest rates, foreign currency and other exposures do not have a significantly adverse effect on the net interest margin, cash flows and earnings. As a result of fluctuations in these exposures, hedged assets and liabilities will gain or lose market value. In a fair value or economic hedge, the effect of this unrealized gain or loss will generally be offset by the gain or loss on the derivatives linked to the hedged assets and liabilities. In a cash flow hedge, where we manage the variability of cash payments due to interest rate fluctuations by the effective use of derivatives linked to hedged assets and liabilities, the unrealized gain or loss on the derivatives or the hedged asset or liability is generally reflected in other comprehensive income and not in earnings.
	We also offer various derivatives, including interest rate, commodity, equity, credit and foreign exchange contracts, to our customers as part of our trading businesses but usually offset our exposure from such contracts by entering into other financial contracts. These derivative transactions are conducted in an effort to help customers manage their market price risks. The customer accommodations and any offsetting derivative contracts are treated as free-standing derivatives. To a much lesser extent, we take positions executed for our own account based on market expectations or to benefit from price differentials between financial instruments and markets. Additionally, free-standing derivatives include embedded derivatives that are required to be accounted for separately from their host contracts.
	The following table presents the total notional or contractual amounts and fair values for our derivatives. Derivative transactions can be measured in terms of the notional amount, but this amount is not recorded on the balance sheet and is not, when viewed in isolation, a meaningful measure of the risk profile of the instruments. The notional amount is generally not exchanged, but is used only as the basis on which interest and other payments are determined. Derivatives designated as qualifying hedge contracts and free-standing derivatives (economic hedges) are recorded on the balance sheet at fair value in other assets or other liabilities. Customer accommodation, trading and other free-standing derivatives are recorded on the balance sheet at fair value in trading assets, other assets or other liabilities.
								30-Sep-13						31-Dec-12
							Notional or				Fair value		Notional or		Fair value
							contractual				Asset	Liability	contractual		Asset	Liability
	(in millions)							amount		derivatives		derivatives		amount	derivatives	derivatives
	Derivatives designated as hedging instruments
		Interest rate contracts (1)					$	91,455			5,022	2,409		92,004	7,284	2,696
		Foreign exchange contracts						27,429			1,390	597		27,382	1,808	274
	Total derivatives designated as
		qualifying hedging instruments									6,412	3,006			9,092	2,970
	Derivatives not designated as hedging instruments
		Free-standing derivatives (economic hedges):
			Interest rate contracts (2)					257,974			1,895	1,434		334,555	450	694
			Equity contracts					2,396			273	154		75	-	50
			Foreign exchange contracts					13,052			77	307		3,074	3	64
			Credit contracts - protection purchased					1			-	2		16	-	-
			Other derivatives					2,131			-	24		2,296	-	78
				Subtotal							2,245	1,921			453	886
		Customer accommodation, trading and other
			free-standing derivatives:
			Interest rate contracts					3,486,515			49,067	51,471		2,774,783	63,617	65,305
			Commodity contracts					99,926			3,041	2,937		90,732	3,456	3,590
			Equity contracts					78,950			5,163	5,484		71,958	3,783	4,114
			Foreign exchange contracts					176,214			3,629	3,432		166,061	3,713	3,241
			Credit contracts - protection sold					20,558			302	1,776		26,455	315	2,623
			Credit contracts - protection purchased					23,652			1,080	323		29,021	1,495	329
				Subtotal							62,282	65,423			76,379	79,202
	Total derivatives not designated as hedging instruments										64,527	67,344			76,832	80,088
	Total derivatives before netting										70,939	70,350			85,924	83,058
	Netting (3)										-54,567	-61,375			-62,108	-71,116
					Total					$	16,372	8,975			23,816	11,942
	Notional amounts presented exclude $2.7 billion at September 30, 2013, and $4.7 billion at December 31, 2012, of certain derivatives that are combined for designation as a hedge on a single instrument.
	Includes free-standing derivatives (economic hedges) used to hedge the risk of changes in the fair value of residential MSRs, MHFS, loans and other interests held.
	Represents balance sheet netting of derivative asset and liability balances, and related cash collateral. See the next table in this Note for further information.
	The following table provides information on the gross fair values of derivative assets and liabilities, the balance sheet netting adjustments and the resulting net fair value amount recorded on our balance sheet, as well as the non-cash collateral associated with such arrangements. We execute substantially all of our derivative transactions under master netting arrangements. We reflect all derivative balances and related cash collateral subject to enforceable master netting arrangements on a net basis within the balance sheet. The “Gross amounts recognized” in the following table include $57.3 billion and $63.0 billion of gross derivative assets and liabilities, respectively, at September 30, 2013, and $68.9 billion and $75.8 billion, respectively, at December 31, 2012, with counterparties subject to enforceable master netting arrangements that are carried on the balance sheet net of offsetting amounts. The remaining gross derivative assets and liabilities of $13.6 billion and $7.4 billion, respectively, at September 30, 2013 and $17.0 billion and $7.3 billion, respectively, at December 31, 2012, include those with counterparties subject to master netting arrangements for which we have not assessed the enforceability because they are with counterparties where we do not currently have positions to offset, those subject to master netting arrangements where we have not been able to confirm the enforceability and those not subject to master netting arrangements. As such,we do not net derivative balances or collateral within the balance sheet for these counterparties.
	We determine the balance sheet netting adjustments based on the terms specified within each master netting arrangement. We disclose the balance sheet netting amounts within the column titled “Gross amounts offset in consolidated balance sheet.” Balance sheet netting adjustments are determined at the counterparty level for which there may be multiple contract types. For disclosure purposes, we allocate these adjustments to the contract type for each counterparty proportionally based upon the “Gross amounts recognized” by counterparty. As a result, the net amounts disclosed by contract type may not represent the actual exposure upon settlement of the contracts.
	Balance sheet netting does not include non-cash collateral that we pledge. For disclosure purposes, we present these amounts in the column “Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)” within the table. We determine and allocate the Disclosure-only netting amounts in the same manner as balance sheet netting amounts.
	The “Net amounts” column within the following table represents the aggregate of our net exposure to each counterparty after considering the balance sheet and Disclosure-only netting adjustments. We manage derivative exposure by monitoring the credit risk associated with each counterparty using counterparty specific credit risk limits, using master netting arrangements and obtaining collateral. Derivative contracts executed in over the counter markets are typically bilateral contractual arrangements that are not cleared through a central clearing party and are subject to master netting arrangements. The percentage of derivatives executed in such markets, based on gross fair value, is provided within the next table. In addition to the netting amounts included in the table, we also have balance sheet netting related to resale and repurchase agreements that are disclosed within Note 10.
										Gross amounts
								Gross amounts		not offset in
								offset in	Net amounts in	consolidated		Percent
								consolidated	consolidated	balance sheet		exchanged in
						Gross amounts		balance	balance	(Disclosure-only		over-the-counter
	(in millions)						recognized	sheet (1)	sheet (2)	netting) (3)	Net amounts	market (4)
	30-Sep-13
	Derivative assets
		Interest rate contracts				$	55,984	-45,955	10,029	-963	9,066	74	%
		Commodity contracts					3,041	-732	2,309	-67	2,242	47
		Equity contracts					5,436	-2,736	2,700	-109	2,591	88
		Foreign exchange contracts					5,096	-4,002	1,094	-16	1,078	100
		Credit contracts-protection sold					302	-259	43	-	43	96
		Credit contracts-protection purchased					1,080	-883	197	-34	163	100
			Total derivative assets			$	70,939	-54,567	16,372	-1,189	15,183
	Derivative liabilities
		Interest rate contracts				$	55,314	-52,268	3,046	-192	2,854	73	%
		Commodity contracts					2,937	-1,153	1,784	-	1,784	75
		Equity contracts					5,638	-2,995	2,643	-134	2,509	94
		Foreign exchange contracts					4,336	-2,988	1,348	-	1,348	100
		Credit contracts-protection sold					1,776	-1,688	88	-	88	100
	Credit contracts-protection purchased					325	-283	42	-	42	92
	Other contracts					24	-	24	-	24	100
		Total derivative liabilities			$	70,350	-61,375	8,975	-326	8,649
31-Dec-12
Derivative assets
	Interest rate contracts				$	71,351	-53,708	17,643	-2,692	14,951	94	%
	Commodity contracts					3,456	-1,080	2,376	-27	2,349	48
	Equity contracts					3,783	-2,428	1,355	-	1,355	89
	Foreign exchange contracts					5,524	-3,449	2,075	-105	1,970	100
	Credit contracts-protection sold					315	-296	19	-4	15	100
	Credit contracts-protection purchased					1,495	-1,147	348	-56	292	100
		Total derivative assets			$	85,924	-62,108	23,816	-2,884	20,932
Derivative liabilities
	Interest rate contracts				$	68,695	-62,559	6,136	-287	5,849	92	%
	Commodity contracts					3,590	-1,394	2,196	-	2,196	79
	Equity contracts					4,164	-2,618	1,546	-	1,546	95
	Foreign exchange contracts					3,579	-1,804	1,775	-55	1,720	100
	Credit contracts-protection sold					2,623	-2,450	173	-	173	100
	Credit contracts-protection purchased					329	-291	38	-	38	100
	Other contracts					78	-	78	-	78	100
		Total derivative liabilities			$	83,058	-71,116	11,942	-342	11,600
-1	Represents amounts with counterparties subject to enforceable master netting arrangements that have been offset in the consolidated balance sheet, including related cash collateral and portfolio level counterparty valuation adjustments. Counterparty valuation adjustments were $293 million and $352 million related to derivative assets and $81 million and $68 million related to derivative liabilities as of September 30, 2013, and December 31, 2012, respectively. Cash collateral totaled $4.9 billion and $12.0 billion, netted against derivative assets and liabilities, respectively, at September 30, 2013, and $5.0 billion and $14.5 billion, respectively, at December 31, 2012.
-2	Net derivative assets of $13.4 billion and $18.3 billion are classified in Trading assets as of September 30, 2013, and December 31, 2012, respectively. $3.0 billion and $5.5 billion are classified in Other assets in the consolidated balance sheet as of September 30, 2013, and December 31, 2012, respectively. Net derivative liabilities are classified in Accrued expenses and other liabilities in the consolidated balance sheet.
-3	Represents non-cash collateral pledged and received against derivative assets and liabilities with the same counterparty that are subject to enforceable master netting arrangements. U.S. GAAP does not permit netting of such non-cash collateral balances in the consolidated balance sheet but requires disclosure of these amounts.
-4	Calculated based on Gross amounts recognized as of the respective balance sheet date. The remaining percentage represents exchange-traded derivatives and derivatives cleared through central clearinghouses.
Fair Value Hedges
We use interest rate swaps to convert certain of our fixed-rate long-term debt to floating rates to hedge our exposure to interest rate risk. We also enter into cross-currency swaps, cross-currency interest rate swaps and forward contracts to hedge our exposure to foreign currency risk and interest rate risk associated with the issuance of non-U.S. dollar denominated long-term debt. In addition, we use interest rate swaps, cross-currency swaps, cross-currency interest rate swaps and forward contracts to hedge against changes in fair value of certain investments in available-for-sale debt securities due to changes in interest rates, foreign currency rates, or both. We also use interest rate swaps to hedge against changes in fair value for certain mortgages held for sale. The entire derivative gain or loss is included in the assessment of hedge effectiveness for all fair value hedge relationships, except for those involving foreign-currency denominated securities available for sale and long-term debt hedged with foreign currency forward derivatives for which the time value component of the derivative gain or loss related to the changes in the difference between the spot and forward price is excluded from the assessment of hedge effectiveness.
We use statistical regression analysis to assess hedge effectiveness, both at inception of the hedging relationship and on an ongoing basis. The regression analysis involves regressing the periodic change in fair value of the hedging instrument against the periodic changes in fair value of the asset or liability being hedged due to changes in the hedged risk(s). The assessment includes an evaluation of the quantitative measures of the regression results used to validate the conclusion of high effectiveness.
The following table shows the net gains (losses) recognized in the income statement related to derivatives in fair value hedging relationships.
						Interest rate				Foreign exchange		Total net
						contracts hedging:				contracts hedging:		gains
												(losses)
						Securities	Mortgages			Securities		on fair
						available	held for	Long-term		available	Long-term	value
(in millions)						for sale	sale	debt		for sale	debt	hedges
Quarter ended September 30, 2013
Net interest income (expense) recognized on derivatives					$	-155	-10	413		-2	69	315
Gains (losses) recorded in noninterest income
	Recognized on derivatives					165	45	-406		-273	687	218
	Recognized on hedged item					-174	-42	349		271	-678	-274
		Net recognized on fair value hedges (ineffective portion) (1)			$	-9	3	-57		-2	9	-56
Quarter ended September 30, 2012
Net interest income (expense) recognized on derivatives					$	-115	-	415		-	55	355
Gains (losses) recorded in noninterest income
	Recognized on derivatives					-19	-7	-67		-115	502	294
	Recognized on hedged item					24	4	26		130	-515	-331
		Net recognized on fair value hedges (ineffective portion) (1)			$	5	-3	-41		15	-13	-37
Nine months ended September 30, 2013
Net interest income (expense) recognized on derivatives					$	-416	-7	1,205		-4	206	984
Gains (losses) recorded in noninterest income
	Recognized on derivatives					1,368	36	-2,800		39	-693	-2,050
	Recognized on hedged item					-1,352	-43	2,613		-32	650	1,836
		Net recognized on fair value hedges (ineffective portion) (1)			$	16	-7	-187		7	-43	-214
Nine months ended September 30, 2012
Net interest income (expense) recognized on derivatives					$	-340	1	1,281		-4	186	1,124
Gains (losses) recorded in noninterest income
	Recognized on derivatives					-229	-13	267		71	351	447
	Recognized on hedged item					222	6	-186		-32	-393	-383
		Net recognized on fair value hedges (ineffective portion) (1)			$	-7	-7	81		39	-42	64
The third quarter and first nine months of 2013 included $(1) million and $(5) million, respectively, and the third quarter and first nine months of 2012 included $(3) million and $(5) million, respectively, of the time value component recognized as net interest income (expense) on forward derivatives hedging foreign currency long-term debt that were excluded from the assessment of hedge effectiveness.
Cash Flow Hedges
We hedge floating-rate debt against future interest rate increases by using interest rate swaps, caps, floors and futures to limit variability of cash flows due to changes in the benchmark interest rate. We also use interest rate swaps and floors to hedge the variability in interest payments received on certain floating-rate commercial loans, due to changes in the benchmark interest rate. We use forward contracts to hedge our exposure to foreign currency risk associated with certain non-U.S. dollar denominated operating expenses. Gains and losses on derivatives that are reclassified from OCI to interest income, interest expense, noninterest income and noninterest expense in the current period are included in the line item in which the hedged item's effect on earnings is recorded. All parts of gain or loss on these derivatives are included in the assessment of hedge effectiveness. We assess hedge effectiveness using regression analysis, both at inception of the hedging relationship and on an ongoing basis. The regression analysis involves regressing the periodic changes in cash flows of the hedging instrument against the periodic changes in cash flows of the forecasted transaction being hedged due to changes in the hedged risk(s). The assessment includes an evaluation of the quantitative measures of the regression results used to validate the conclusion of high effectiveness.
Based upon current interest rates, we estimate that $238 million (pre tax) of deferred net gains on derivatives in OCI at September 30, 2013, will be reclassified into net interest income during the next twelve months. Future changes to interest rates may significantly change actual amounts reclassified to earnings. We are hedging our exposure to the variability of future cash flows for all forecasted transactions for a maximum of 5 years for both hedges of floating-rate debt and floating-rate commercial loans.
The following table shows the net gains (losses) recognized related to derivatives in cash flow hedging relationships.
						Quarter		Nine months
				ended September 30,				ended September 30,
(in millions)					2013	2012		2013	2012
Gains (losses) (pre tax) recognized in OCI on derivatives				$	-7	24		-10	63
Gains (pre tax) reclassified from cumulative OCI into net income (1)					69	89		225	295
Gains (losses) (pre tax) recognized in noninterest income for hedge ineffectiveness (2)					-1	-1		-	-2
See Note 17 for detail on components of net income.
None of the change in value of the derivatives was excluded from the assessment of hedge effectiveness.
Free-Standing Derivatives
We use free-standing derivatives (economic hedges) to hedge the risk of changes in the fair value of certain residential MHFS, certain loans held for investment, residential MSRs measured at fair value, derivative loan commitments and other interests held. The resulting gain or loss on these economic hedges is reflected in mortgage banking noninterest income and other noninterest income.
The derivatives used to hedge MSRs measured at fair value, which include swaps, swaptions, constant maturity mortgages, forwards, Eurodollar and Treasury futures and options contracts, resulted in net derivative gains of $239 million and net losses of $2.2 billion in third quarter 2013 and first nine months of 2013, respectively and net derivative gains of $1.6 billion and $3.7 billion in third quarter 2012 and first nine months of 2012, respectively, which are included in mortgage banking noninterest income. The aggregate fair value of these derivatives was a net asset of $1.3 billion at September 30, 2013 and a net asset of $87 million at December 31, 2012. The change in fair value of these derivatives for each period end is due to changes in the underlying market indices and interest rates as well as the purchase and sale of derivative financial instruments throughout the period as part of our dynamic MSR risk management process.
Interest rate lock commitments for residential mortgage loans that we intend to sell are considered free-standing derivatives. Our interest rate exposure on these derivative loan commitments, as well as substantially all residential MHFS, is hedged with free-standing derivatives (economic hedges) such as swaps, forwards and options, Eurodollar futures and options, and Treasury futures, forwards and options contracts. The commitments, free-standing derivatives and residential MHFS are carried at fair value with changes in fair value included in mortgage banking noninterest income. For the fair value measurement of interest rate lock commitments we include, at inception and during the life of the loan commitment, the expected net future cash flows related to the associated servicing of the loan. Fair value changes subsequent to inception are based on changes in fair value of the underlying loan resulting from the exercise of the commitment and changes in the probability that the loan will not fund within the terms of the commitment (referred to as a fall-out factor). The value of the underlying loan is affected primarily by changes in interest rates and the passage of time. However, changes in investor demand can also cause changes in the value of the underlying loan value that cannot be hedged. The aggregate fair value of derivative loan commitments in the balance sheet was a net asset of $222 million and $497 million at September 30, 2013 and December 31, 2012, respectively, and is included in the caption “Interest rate contracts” under “Customer accommodation, trading and other free-standing derivatives” in the first table in this Note.
We also enter into various derivatives primarily to provide derivative products to customers. To a lesser extent, we take positions based on market expectations or to benefit from price differentials between financial instruments and markets. These derivatives are not linked to specific assets and liabilities in the balance sheet or to forecasted transactions in an accounting hedge relationship and, therefore, do not qualify for hedge accounting. We also enter into free-standing derivatives for risk management that do not otherwise qualify for hedge accounting. They are carried at fair value with changes in fair value recorded as other noninterest income.
Free-standing derivatives also include embedded derivatives that are required to be accounted for separately from their host contract. We periodically issue hybrid long-term notes and CDs where the performance of the hybrid instrument notes is linked to an equity, commodity or currency index, or basket of such indices. These notes contain explicit terms that affect some or all of the cash flows or the value of the note in a manner similar to a derivative instrument and therefore are considered to contain an “embedded” derivative instrument. The indices on which the performance of the hybrid instrument is calculated are not clearly and closely related to the host debt instrument. The “embedded” derivative is separated from the host contract and accounted for as a free-standing derivative. Additionally, we may invest in hybrid instruments that contain embedded derivatives, such as credit derivatives, that are not clearly and closely related to the host contract. In such instances, we either elect fair value option for the hybrid instrument or separate the embedded derivative from the host contract and account for the host contract and derivative separately.
The following table shows the net gains recognized in the income statement related to derivatives not designated as hedging instruments.
							Quarter			Nine months
							ended Sept. 30,			ended Sept. 30,
(in millions)							2013	2012		2013	2012
Net gains (losses) recognized on free-standing derivatives (economic hedges):
	Interest rate contracts
		Recognized in noninterest income:
			Mortgage banking (1)			$	109	-1,356		1,837	-2,182
			Other (2)				-3	-7		95	-40
	Equity contracts (3)						-50	-		-88	1
	Foreign exchange contracts (2)						-227	-37		-207	-38
	Credit contracts (2)						-	-3		-6	-13
					Subtotal		-171	-1,403		1,631	-2,272
Net gains (losses) recognized on customer accommodation, trading
	and other free-standing derivatives:
		Interest rate contracts
			Recognized in noninterest income:
				Mortgage banking (4)			210	2,794		-696	6,336
				Other (5)			-13	136		568	466
		Commodity contracts (5)					52	-72		276	-116
		Equity contracts (5)					-153	99		-410	20
		Foreign exchange contracts (5)					69	131		484	380
		Credit contracts (5)					-11	-29		-31	-18
					Subtotal		154	3,059		191	7,068
	Net gains recognized related to derivatives not designated
		as hedging instruments				$	-17	1,656		1,822	4,796
Predominantly mortgage banking noninterest income including gains (losses) on the derivatives used as economic hedges of MSRs measured at fair value, interest rate lock commitments and mortgages held for sale.
Predominantly included in other noninterest income.
Predominantly included in net gains (losses) from equity investments.
Predominantly mortgage banking noninterest income including gains (losses) on interest rate lock commitments.
Predominantly included in net gains from trading activities in noninterest income.
Credit Derivatives
We use credit derivatives primarily to assist customers with their risk management objectives. We may also use credit derivatives in structured product transactions or liquidity agreements written to special purpose vehicles. The maximum exposure of sold credit derivatives is managed through posted collateral, purchased credit derivatives and similar products in order to achieve our desired credit risk profile. This credit risk management provides an ability to recover a significant portion of any amounts that would be paid under the sold credit derivatives. We would be required to perform under the noted credit derivatives in the event of default by the referenced obligors. Events of default include events such as bankruptcy, capital restructuring or lack of principal and/or interest payment. In certain cases, other triggers may exist, such as the credit downgrade of the referenced obligors or the inability of the special purpose vehicle for which we have provided liquidity to obtain funding.
The following table provides details of sold and purchased credit derivatives.
							Notional amount
								Protection		Protection
								sold -		purchased	Net
								non-		with	protection	Other
						Fair value	Protection	investment		identical	sold	protection	Range of
(in millions)						liability	sold (A)	grade	underlyings (B)		(A) - (B)	purchased	maturities
30-Sep-13
Credit default swaps on:
	Corporate bonds				$	69	11,355	5,953		6,120	5,235	6,759	2013-2021
	Structured products					1,254	1,753	1,419		753	1,000	356	2016-2056
Credit protection on:
	Default swap index					1	3,064	303		2,871	193	618	2014-2018
	Commercial mortgage-
		backed securities index				401	1,149	214		570	579	618	2049-2052
	Asset-backed securities index					50	57	57		3	54	88	2037-2046
Other						1	3,180	3,167		13	3,167	4,883	2013-2056
	Total credit derivatives				$	1,776	20,558	11,113		10,330	10,228	13,322
31-Dec-12
Credit default swaps on:
	Corporate bonds				$	240	15,845	8,448		9,636	6,209	7,701	2013-2021
	Structured products					1,787	2,433	2,039		948	1,485	393	2016-2056
Credit protection on:
	Default swap index					4	3,520	348		3,444	76	616	2013-2017
	Commercial mortgage-backed securities index					531	1,249	861		790	459	524	2049-2052
	Asset-backed securities index					57	64	64		6	58	92	2037-2046
Other						4	3,344	3,344		106	3,238	4,655	2013-2056
	Total credit derivatives				$	2,623	26,455	15,104		14,930	11,525	13,981
Protection sold represents the estimated maximum exposure to loss that would be incurred under an assumed hypothetical circumstance, where the value of our interests and any associated collateral declines to zero, without any consideration of recovery or offset from any economic hedges. We believe this hypothetical circumstance to be an extremely remote possibility and accordingly, this required disclosure is not an indication of expected loss. The amounts under non-investment grade represent the notional amounts of those credit derivatives on which we have a higher risk of being required to perform under the terms of the credit derivative and are a function of the underlying assets.
We consider the risk of performance to be high if the underlying assets under the credit derivative have an external rating that is below investment grade or an internal credit default grade that is equivalent thereto. We believe the net protection sold, which is representative of the net notional amount of protection sold and purchased with identical underlyings, in combination with other protection purchased, is more representative of our exposure to loss than either non-investment grade or protection sold. Other protection purchased represents additional protection, which may offset the exposure to loss for protection sold, that was not purchased with an identical underlying of the protection sold.
Credit-Risk Contingent Features
Certain of our derivative contracts contain provisions whereby if the credit rating of our debt were to be downgraded by certain major credit rating agencies, the counterparty could demand additional collateral or require termination or replacement of derivative instruments in a net liability position. The aggregate fair value of all derivative instruments with such credit-risk-related contingent features that are in a net liability position was $15.3 billion at September 30, 2013, and $16.2 billion at December 31, 2012, respectively, for which we posted $12.3 billion and $14.3 billion, respectively, in collateral in the normal course of business. If the credit rating of our debt had been downgraded below investment grade, which is the credit-risk-related contingent feature that if triggered requires the maximum amount of collateral to be posted, on September 30, 2013, or December 31, 2012, we would have been required to post additional collateral of $3.1 billion or $1.9 billion, respectively, or potentially settle the contract in an amount equal to its fair value.
Counterparty Credit Risk
By using derivatives, we are exposed to counterparty credit risk if counterparties to the derivative contracts do not perform as expected. If a counterparty fails to perform, our counterparty credit risk is equal to the amount reported as a derivative asset on our balance sheet. The amounts reported as a derivative asset are derivative contracts in a gain position, and to the extent subject to legally enforceable master netting arrangements, net of derivatives in a loss position with the same counterparty and cash collateral received. We minimize counterparty credit risk through credit approvals, limits, monitoring procedures, executing master netting arrangements and obtaining collateral, where appropriate. To the extent the master netting arrangements and other criteria meet the applicable requirements, including determining the legal enforceability of the arrangement, it is our policy to present derivatives balances and related cash collateral amounts net in the balance sheet. We incorporate credit valuation adjustments (“CVA”) to reflect counterparty credit risk in determining the fair value of our derivatives. Such adjustments, which consider the effects of enforceable master netting agreements and collateral arrangements, reflect market-based views of the credit quality of each counterparty. Our CVA calculation is determined based on observed credit spreads in the credit default swap market and indices indicative of the credit quality of the counterparties to our derivatives.

Fair_Values_of_Assets_and_Liab

Fair Values of Assets and Liabilities	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Values of Assets and Liabilities	'
Note 13: Fair Values of Assets and Liabilities
We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Assets and liabilities recorded at fair value on a recurring basis are presented in the recurring table in this Note. From time to time, we may be required to record at fair value other assets on a nonrecurring basis, such as certain residential and commercial MHFS, certain LHFS, loans held for investment and certain other assets. These nonrecurring fair value adjustments typically involve application of lower-of-cost-or-market accounting or write-downs of individual assets.
See Note 1 in our 2012 Form 10-K for discussion of how we determine fair value. For descriptions of the valuation methodologies we use for assets and liabilities recorded at fair value on a recurring or nonrecurring basis and for estimating fair value for financial instruments not recorded at fair value, see Note 17 in our 2012 Form 10-K.
Fair Value Hierarchy We group our assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:
Level 1 – Valuation is based upon quoted prices for identical instruments traded in active markets.
Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.
Level 3 – Valuation is generated from techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.
Level 3 Asset and Liability Valuation Processes
We generally determine fair value of our Level 3 assets and liabilities by using internally developed models and, to a lesser extent, prices obtained from third-party pricing services or brokers (collectively, vendors). Our valuation processes vary depending on which approach is utilized.
INTERNAL MODEL VALUATIONS Our internally developed models primarily consist of discounted cash flow techniques. Use of such techniques requires determining relevant inputs, some of which are unobservable. Unobservable inputs are generally derived from historic performance of similar assets or determined from previous market trades in similar instruments. These unobservable inputs usually consist of discount rates, default rates, loss severity upon default, volatilities, correlations and prepayment rates, which are inherent within our Level 3 instruments. Such inputs can be correlated to similar portfolios with known historic experience or recent trades where particular unobservable inputs may be implied; but due to the nature of various inputs being reflected within a particular trade, the value of each input is considered unobservable. We attempt to correlate each unobservable input to historic experience and other third party data where available.
Internal valuation models are subject to review prescribed within our model risk management policies and procedures which includes model validation. The purpose of model validation includes ensuring the model is appropriate for its intended use and the appropriate controls exist to help mitigate risk of invalid valuations. Model validation assesses the adequacy and appropriateness of the model, including reviewing its key components such as inputs, processing components, logic or theory, output results and supporting model documentation. Validation also includes ensuring significant unobservable model inputs are appropriate given observable market transactions or other market data within the same or similar asset classes. This ensures modeled approaches are appropriate given similar product valuation techniques and are in line with their intended purpose.
We have ongoing monitoring procedures in place for our Level 3 assets and liabilities that use such internal valuation models. These procedures, which are designed to provide reasonable assurance that models continue to perform as expected after approved, include:
ongoing analysis and benchmarking to market transactions and other independent market data (including pricing vendors, if available);
back-testing of modeled fair values to actual realized transactions; and
review of modeled valuation results against expectations, including review of significant or unusual value fluctuations.
We update model inputs and methodologies periodically to reflect these monitoring procedures. Additionally, procedures and controls are in place to ensure existing models are subject to periodic reviews, and we perform full model revalidations as necessary.
All internal valuation models are subject to ongoing review by business-unit-level management. More complex models are subject to additional oversight by a corporate-level risk management department. Corporate oversight responsibilities include evaluating adequacy of business unit risk management programs, maintaining company-wide model validation policies and standards and reporting the results of these activities to management and our Enterprise Risk Management Committee (ERMC). The ERMC, which consists of senior executive management and reports on top risks to the Company's Board of Directors, monitors all company-wide risks, including credit risk, market risk, and reputational risk.
VENDOR-DEVELOPED VALUATIONS In certain limited circumstances we obtain pricing from third party vendors for the value of our Level 3 assets or liabilities. We have processes in place to approve such vendors to ensure information obtained and valuation techniques used are appropriate. Once these vendors are approved to provide pricing information, we monitor and review the results to ensure the fair values are reasonable and in line with market experience in similar asset classes. While the input amounts used by the pricing vendor in determining fair value are not provided, and therefore unavailable for our review, we do perform one or more of the following procedures to validate the prices received:
comparison to other pricing vendors (if available);
variance analysis of prices;
corroboration of pricing by reference to other independent market data such as market transactions and relevant benchmark indices;
review of pricing by Company personnel familiar with market liquidity and other market-related conditions; and
investigation of prices on a specific instrument-by-instrument basis.
Fair Value Measurements from Brokers or Third Party Pricing Services
For certain assets and liabilities, we obtain fair value measurements from brokers or third party pricing services and record the unadjusted fair value in our financial statements. The detail by level is shown in the table below. Fair value measurements obtained from brokers or third party pricing services that we have adjusted to determine the fair value recorded in our financial statements are not included in the following table.
								Brokers				Third party pricing services
(in millions)								Level 1	Level 2	Level 3		Level 1	Level 2	Level 3
30-Sep-13
Trading assets (excluding derivatives)							$	-	311	6		1,540	918	-
Securities available for sale:
	Securities of U.S. Treasury and federal agencies							-	-	-		566	5,840	-
	Securities of U.S. states and political subdivisions							-	-	-		-	38,584	63
	Mortgage-backed securities							-	1,491	1		-	149,424	273
	Other debt securities (1)							-	15,476	3,065		-	27,827	70
		Total debt securities						-	16,967	3,066		566	221,675	406
		Total marketable equity securities						-	-	-		8	625	-
			Total securities available for sale					-	16,967	3,066		574	222,300	406
Derivatives (trading and other assets)								-	5	-		-	481	2
Derivatives (liabilities)								-	-18	-		-	-486	-
Other liabilities								-	-140	-		-	-49	-
31-Dec-12
Trading assets (excluding derivatives)							$	-	406	8		1,314	1,016	-
Securities available for sale:
	Securities of U.S. Treasury and federal agencies							-	-	-		915	6,231	-
	Securities of U.S. states and political subdivisions							-	-	-		-	35,036	-
	Mortgage-backed securities							-	138	4		-	121,703	292
	Other debt securities (1)							-	1,516	12,465		-	28,314	149
		Total debt securities						-	1,654	12,469		915	191,284	441
		Total marketable equity securities						-	3	-		29	774	-
			Total securities available for sale					-	1,657	12,469		944	192,058	441
Derivatives (trading and other assets)								-	8	-		-	602	-
Derivatives (liabilities)								-	-26	-		-	-634	-
Other liabilities								-	-121	-		-	-104	-
-1	Includes corporate debt securities, collateralized loan and other debt obligations, asset-backed securities, and other debt securities.
Assets and Liabilities Recorded at Fair Value on a Recurring Basis
The following two tables present the balances of assets and liabilities measured at fair value on a recurring basis.
(in millions)								Level 1	Level 2	Level 3		Netting		Total
30-Sep-13
Trading assets (excluding derivatives)
	Securities of U.S. Treasury and federal agencies						$	8,443	4,319	-		-		12,762
	Securities of U.S. states and political subdivisions							-	2,252	39		-		2,291
	Collateralized loan and other debt obligations (1)							-	217	543		-		760
	Corporate debt securities							-	8,052	36		-		8,088
	Mortgage-backed securities							-	12,623	1		-		12,624
	Asset-backed securities							3	768	100		-		871
	Equity securities							4,521	76	-		-		4,597
		Total trading securities(2)						12,967	28,307	719		-		41,993
	Other trading assets							2,478	2,306	60		-		4,844
			Total trading assets (excluding derivatives)					15,445	30,613	779		-		46,837
Securities of U.S. Treasury and federal agencies								566	5,840	-		-		6,406
Securities of U.S. states and political subdivisions								-	38,650	3,643	-3	-		42,293
Mortgage-backed securities:
	Federal agencies							-	118,963	-		-		118,963
	Residential							-	13,436	88		-		13,524
	Commercial							-	18,617	188		-		18,805
		Total mortgage-backed securities						-	151,016	276		-		151,292
Corporate debt securities								113	20,851	234		-		21,198
Collateralized loan and other debt obligations(4)								-	14,390	3,386	-3	-		17,776
Asset-backed securities:
	Auto loans and leases							-	17	5,174	-3	-		5,191
	Home equity loans							-	831	-		-		831
	Other asset-backed securities							-	6,870	3,211	-3	-		10,081
		Total asset-backed securities						-	7,718	8,385		-		16,103
Other debt securities								-	751	-		-		751
			Total debt securities					679	239,216	15,924		-		255,819
Marketable equity securities:
	Perpetual preferred securities (5)							536	622	740	-3	-		1,898
	Other marketable equity securities							1,672	10	-		-		1,682
			Total marketable equity securities					2,208	632	740		-		3,580
				Total securities available for sale				2,887	239,848	16,664		-		259,399
Mortgages held for sale								-	20,776	2,433		-		23,209
Loans held for sale								-	2	-		-		2
Loans								-	246	5,805		-		6,051
Mortgage servicing rights (residential)								-	-	14,501		-		14,501
Derivative assets:
	Interest rate contracts							33	55,363	588		-		55,984
	Commodity contracts							-	3,018	23		-		3,041
	Equity contracts							648	3,580	1,208		-		5,436
	Foreign exchange contracts							30	5,061	5		-		5,096
	Credit contracts							-	819	563		-		1,382
	Other derivative contracts							-	-	-		-		-
		Netting						-	-	-		-54,567	-6	-54,567
			Total derivative assets (7)					711	67,841	2,387		-54,567		16,372
Other assets								50	4	1,038		-		1,092
					Total assets recorded at fair value		$	19,093	359,330	43,607		-54,567		367,463
Derivative liabilities:
	Interest rate contracts						$	-47	-54,933	-334		-		-55,314
	Commodity contracts							-	-2,918	-19		-		-2,937
	Equity contracts							-332	-4,173	-1,133		-		-5,638
	Foreign exchange contracts							-29	-4,306	-1		-		-4,336
	Credit contracts							-	-842	-1,259		-		-2,101
	Other derivative contracts							-	-	-24		-		-24
		Netting						-	-	-		61,375	-6	61,375
			Total derivative liabilities (7)					-408	-67,172	-2,770		61,375		-8,975
Short sale liabilities:
	Securities of U.S. Treasury and federal agencies							-6,284	-1,934	-		-		-8,218
	Securities of U.S. states and political subdivisions							-	-18	-		-		-18
	Corporate debt securities							-	-4,556	-		-		-4,556
	Equity securities							-1,728	-25	-		-		-1,753
	Other securities							-	-42	-		-		-42
		Total short sale liabilities						-8,012	-6,575	-		-		-14,587
Other liabilities								-	-	-41		-		-41
					Total liabilities recorded at fair value		$	-8,420	-73,747	-2,811		61,375		-23,603
Includes collateralized debt obligations of $5 million.
Net gains (losses) from trading activities recognized in the income statement for the nine months ended September 30, 2013 and 2012, include $(215) million and $464 million in net unrealized gains (losses) on trading securities held at September 30, 2013 and 2012, respectively.
Balances consist of securities that are predominantly investment grade based on ratings received from the ratings agencies or internal credit grades categorized as investment grade if external ratings are not available. The securities are classified as Level 3 due to limited market activity.
Includes collateralized debt obligations of $700 million.
Perpetual preferred securities include ARS and corporate preferred securities. See Note 7 for additional information.
Derivatives are reported net of cash collateral received and paid and, to the extent that the criteria of the accounting guidance covering the offsetting of amounts related to certain contracts are met, positions with the same counterparty are netted as part of a legally enforceable master netting agreement.
Derivative assets and derivative liabilities include contracts qualifying for hedge accounting, economic hedges, and derivatives included in trading assets and trading liabilities, respectively.
(continued from previous page)
(in millions)								Level 1	Level 2	Level 3		Netting		Total
31-Dec-12
Trading assets (excluding derivatives)
	Securities of U.S. Treasury and federal agencies						$	5,104	3,774	-		-		8,878
	Securities of U.S. states and political subdivisions							-	1,587	46		-		1,633
	Collateralized loan and other debt obligations (1)							-	-	742		-		742
	Corporate debt securities							-	6,664	52		-		6,716
	Mortgage-backed securities							-	13,380	6		-		13,386
	Asset-backed securities							-	722	138		-		860
	Equity securities							3,481	356	3		-		3,840
		Total trading securities(2)						8,585	26,483	987		-		36,055
	Other trading assets							2,150	887	76		-		3,113
			Total trading assets (excluding derivatives)					10,735	27,370	1,063		-		39,168
Securities of U.S. Treasury and federal agencies								915	6,231	-		-		7,146
Securities of U.S. states and political subdivisions								-	35,045	3,631	-3	-		38,676
Mortgage-backed securities:
	Federal agencies							-	97,285	-		-		97,285
	Residential							-	15,837	94		-		15,931
	Commercial							-	19,765	203		-		19,968
		Total mortgage-backed securities						-	132,887	297		-		133,184
Corporate debt securities								125	20,934	274		-		21,333
Collateralized loan and other debt obligations (4)								-	-	13,188	-3	-		13,188
Asset-backed securities:
	Auto loans and leases							-	7	5,921	-3	-		5,928
	Home equity loans							-	867	51		-		918
	Other asset-backed securities							-	7,828	3,283	-3	-		11,111
		Total asset-backed securities						-	8,702	9,255		-		17,957
Other debt securities								-	930	-		-		930
			Total debt securities					1,040	204,729	26,645		-		232,414
Marketable equity securities:
	Perpetual preferred securities (5)							629	753	794	-3	-		2,176
	Other marketable equity securities							554	55	-		-		609
			Total marketable equity securities					1,183	808	794		-		2,785
				Total securities available for sale				2,223	205,537	27,439		-		235,199
Mortgages held for sale								-	39,055	3,250		-		42,305
Loans held for sale								-	6	-		-		6
Loans								-	185	6,021		-		6,206
Mortgage servicing rights (residential)								-	-	11,538		-		11,538
Derivative assets:
	Interest rate contracts							16	70,277	1,058		-		71,351
	Commodity contracts							-	3,386	70		-		3,456
	Equity contracts							432	2,747	604		-		3,783
	Foreign exchange contracts							19	5,481	24		-		5,524
	Credit contracts							-	1,160	650		-		1,810
	Other derivative contracts							-	-	-		-		-
		Netting						-	-	-		-62,108	-6	-62,108
			Total derivative assets (7)					467	83,051	2,406		-62,108		23,816
Other assets								136	123	162		-		421
					Total assets recorded at fair value		$	13,561	355,327	51,879		-62,108		358,659
Derivative liabilities:
	Interest rate contracts						$	-52	-68,244	-399		-		-68,695
	Commodity contracts							-	-3,541	-49		-		-3,590
	Equity contracts							-199	-3,239	-726		-		-4,164
	Foreign exchange contracts							-23	-3,553	-3		-		-3,579
	Credit contracts							-	-1,152	-1,800		-		-2,952
	Other derivative contracts							-	-	-78		-		-78
		Netting						-	-	-		71,116	-6	71,116
			Total derivative liabilities (7)					-274	-79,729	-3,055		71,116		-11,942
Short sale liabilities:
	Securities of U.S. Treasury and federal agencies							-4,225	-875	-		-		-5,100
	Securities of U.S. states and political subdivisions							-	-9	-		-		-9
	Corporate debt securities							-	-3,941	-		-		-3,941
	Equity securities							-1,233	-35	-		-		-1,268
	Other securities							-	-47	-		-		-47
		Total short sale liabilities						-5,458	-4,907	-		-		-10,365
Other liabilities								-	-34	-49		-		-83
					Total liabilities recorded at fair value		$	-5,732	-84,670	-3,104		71,116		-22,390
Includes collateralized debt obligations of $21 million.
Net gains from trading activities recognized in the income statement include $305 million in net unrealized gains on trading securities we held at December 31, 2012.
Balances consist of securities that are predominantly investment grade based on ratings received from the ratings agencies or internal credit grades categorized as investment grade if external ratings are not available. The securities are classified as Level 3 due to limited market activity.
Includes collateralized debt obligations of $644 million.
Perpetual preferred securities include ARS and corporate preferred securities. See Note 7 for additional information.
Derivatives are reported net of cash collateral received and paid and, to the extent that the criteria of the accounting guidance covering the offsetting of amounts related to certain contracts are met, positions with the same counterparty are netted as part of a legally enforceable master netting agreement.
Derivative assets and derivative liabilities include contracts qualifying for hedge accounting, economic hedges, and derivatives included in trading assets and trading liabilities, respectively.
Changes in Fair Value Levels
We monitor the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy and transfer between Level 1, Level 2, and Level 3 accordingly. Observable market data includes but is not limited to quoted prices and market transactions. Changes in economic conditions or market liquidity generally will drive changes in availability of observable market data. Changes in availability of observable market data, which also may result in changing the valuation technique used, are generally the cause of transfers between Level 1, Level 2, and Level 3.
Transfers into and out of Level 1, Level 2, and Level 3 for the periods presented are provided within the following table. The amounts reported as transfers represent the fair value as of the beginning of the quarter in which the transfer occurred.
			Transfers Between Fair Value Levels
			Level 1			Level 2			Level 3 (1)
(in millions)			In	Out		In	Out		In	Out	Total
Quarter ended September 30, 2013
Trading securities		$	-	-1		15	-14		15	-15	-
Securities available for sale			-	-		12	-77		77	-12	-
Mortgages held for sale			-	-		177	-77		77	-177	-
Loans			-	-		48	-		-	-48	-
Net derivative assets and liabilities (2)			-	-		-188	32		-32	188	-
Short sale liabilities			-	-		-	-		-	-	-
	Total transfers	$	-	-1		64	-136		137	-64	-
Quarter ended September 30, 2012
Trading securities		$	23	-		6	-23		-	-6	-
Securities available for sale (3)			-	-		5,417	-16		16	-5,417	-
Mortgages held for sale			-	-		79	-127		127	-79	-
Loans (4)			-	-		-	-5,851		5,851	-	-
Net derivative assets and liabilities			-	-		84	-		-	-84	-
Short sale liabilities			-29	-		-	29		-	-	-
	Total transfers	$	-6	-		5,586	-5,988		5,994	-5,586	-
Nine months ended September 30, 2013
Trading securities (5)		$	-	-247		483	-40		41	-237	-
Securities available for sale (5)			17	-		10,853	-94		77	-10,853	-
Mortgages held for sale			-	-		316	-255		255	-316	-
Loans			-	-		154	-		-	-154	-
Net derivative assets and liabilities			-	-		-139	32		-32	139	-
Short sale liabilities			-	-		-	-		-	-	-
	Total transfers	$	17	-247		11,667	-357		341	-11,421	-
Nine months ended September 30, 2012
Trading securities		$	23	-		16	-37		14	-16	-
Securities available for sale (3)			-	-		9,453	-73		73	-9,453	-
Mortgages held for sale			-	-		229	-298		298	-229	-
Loans (4)			-	-		-	-5,851		5,851	-	-
Net derivative assets and liabilities			-	-		97	8		-8	-97	-
Short sale liabilities			-29	-		-	29		-	-	-
	Total transfers	$	-6	-		9,795	-6,222		6,228	-9,795	-
All transfers in and out of Level 3 are disclosed within the recurring Level 3 rollforward table in this Note.
Consists of net derivative liabilities that were transferred from Level 3 to Level 2 due to increased observable market data. Also includes net derivative liabilities that were transferred from Level 2 to Level 3 in conjunction with a change in our valuation technique from an internal model with significant observable inputs to an internal model with significant unobservable inputs.
Includes $5.2 billion and $9.1 billion of securities of U.S. states and political subdivisions that we transferred from Level 3 to Level 2 in third quarter and first nine months of 2012, respectively, as a result of increased observable market data in the valuation of such instruments. This transfer was done in conjunction with a change in our valuation technique from an internal model based upon unobservable inputs to third party vendor pricing based upon market observable data.
Consists of reverse mortgage loans securitized with GNMA which were accounted for as secured borrowing transactions. We transferred the loans from Level 2 to Level 3 in third quarter 2012 due to decreased market activity and visibility to significant trades of the same or similar products. As a result, we changed our valuation technique from an internal model based on market observable data to an internal discounted cash flow model based on unobservable inputs.
Consists of $202 million of collateralized loan obligations classified as trading assets and $10.6 billion classified as securities available for sale that we transferred from Level 3 to Level 2 in first quarter 2013 as a result of increased observable market data in the valuation of such instruments.
The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2013, are summarized as follows:
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Quarter ended September 30, 2013
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	40	-	-	-1	-	-	39	-
	Collateralized loan and other debt obligations							495	10	-	38	-	-	543	7
	Corporate debt securities							14	2	-	5	15	-	36	1
	Mortgage-backed securities							9	-	-	7	-	-15	1	-
	Asset-backed securities							109	10	-	-19	-	-	100	20
	Equity securities							-	-	-	-	-	-	-	-
		Total trading securities						667	22	-	30	15	-15	719	28
	Other trading assets							63	-3	-	-	-	-	60	-1
			Total trading assets
				(excluding derivatives)				730	19	-	30	15	-15	779	27	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						3,759	3	1	-162	53	-11	3,643	-
	Mortgage-backed securities:
		Residential						98	8	-2	-16	-	-	88	-
		Commercial						194	-2	3	-6	-	-1	188	-2
			Total mortgage-backed
				securities				292	6	1	-22	-	-1	276	-2
	Corporate debt securities							243	2	-9	-2	-	-	234	-
	Collateralized loan and other debt obligations							3,227	-2	16	145	-	-	3,386	-
	Asset-backed securities:
		Auto loans and leases						4,872	1	-3	304	-	-	5,174	-
		Home equity loans						-	-	-	-	-	-	-	-
		Other asset-backed securities						2,948	2	29	208	24	-	3,211	-
			Total asset-backed securities					7,820	3	26	512	24	-	8,385	-
				Total debt securities				15,341	12	35	471	77	-12	15,924	-2	-4
	Marketable equity securities:
		Perpetual preferred securities						788	3	-36	-15	-	-	740	-
		Other marketable equity securities						-	-	-	-	-	-	-	-
				Total marketable
					equity securities			788	3	-36	-15	-	-	740	-	-5
					Total securities
						available for sale		16,129	15	-1	456	77	-12	16,664	-2
Mortgages held for sale								2,641	4	-	-112	77	-177	2,433	5	-6
Loans								5,860	-17	-	10	-	-48	5,805	-13	-6
Mortgage servicing rights								14,185	-638	-	954	-	-	14,501	-213	-6
Net derivative assets and liabilities:
	Interest rate contracts							-561	224	-	591	-	-	254	220
	Commodity contracts							-12	-4	-	-24	-1	45	4	10
	Equity contracts							27	-13	-	-50	-32	143	75	-7
	Foreign exchange contracts							-29	32	-	-	1	-	4	32
	Credit contracts							-799	-7	-	110	-	-	-696	11
	Other derivative contracts							-36	13	-	-1	-	-	-24	-
		Total derivative contracts						-1,410	245	-	626	-32	188	-383	266	-7
Other assets								731	52	-	255	-	-	1,038	-2	-3
Short sale liabilities								-	-	-	-	-	-	-	-	-3
Other liabilities (excluding derivatives)								-43	12	-	-10	-	-	-41	1	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities, equity investments and other noninterest income in the income statement.
The following table presents gross purchases, sales, issuances and settlements related to the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2013.
(in millions)								Purchases	Sales	Issuances	Settlements	Net
Quarter ended September 30, 2013
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	2	-3	-	-	-1
	Collateralized loan and other debt obligations							172	-135	-	1	38
	Corporate debt securities							5	-	-	-	5
	Mortgage-backed securities							425	-418	-	-	7
	Asset-backed securities							2	-9	-	-12	-19
	Equity securities							-	-	-	-	-
		Total trading securities						606	-565	-	-11	30
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				606	-565	-	-11	30
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						-	-1	21	-182	-162
	Mortgage-backed securities:
		Residential						-	-16	-	-	-16
		Commercial						-	1	-	-7	-6
			Total mortgage-backed
				securities				-	-15	-	-7	-22
	Corporate debt securities							-	-	-	-2	-2
	Collateralized loan and other debt obligations							216	-	-	-71	145
	Asset-backed securities:
		Auto loans and leases						750	-	509	-955	304
		Home equity loans						-	-	-	-	-
		Other asset-backed securities						496	-	173	-461	208
			Total asset-backed securities					1,246	-	682	-1,416	512
				Total debt securities				1,462	-16	703	-1,678	471
	Marketable equity securities:
		Perpetual preferred securities						-	-	-	-15	-15
		Other marketable equity securities						-	-	-	-	-
				Total marketable
					equity securities			-	-	-	-15	-15
					Total securities
						available for sale		1,462	-16	703	-1,693	456
Mortgages held for sale								55	-	-	-167	-112
Loans								1	-	112	-103	10
Mortgage servicing rights								-	1	953	-	954
Net derivative assets and liabilities:
	Interest rate contracts							-	-9	-	600	591
	Commodity contracts							-2	2	-	-24	-24
	Equity contracts							-269	130	-	89	-50
	Foreign exchange contracts							-	-	-	-	-
	Credit contracts							-	-3	-	113	110
	Other derivative contracts							-	-	-	-1	-1
		Total derivative contracts						-271	120	-	777	626
Other assets								263	-1	-	-7	255
Short sale liabilities								-	-	-	-	-
Other liabilities (excluding derivatives)								-	-	-	-10	-10
The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2012, are summarized as follows:
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Quarter ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	58	2	-	1	-	-	61	-
	Collateralized loan and other debt obligations							1,273	-224	-	26	-	-	1,075	-246
	Corporate debt securities							56	-	-	-14	-	-	42	-2
	Mortgage-backed securities							93	-	-	-59	-	10	44	-
	Asset-backed securities							179	18	-	-9	-	-16	172	13
	Equity securities							3	-	-	-	-	-	3	-
		Total trading securities						1,662	-204	-	-55	-	-6	1,397	-235
	Other trading assets							91	-9	-	-	-	-	82	-7
			Total trading assets
				(excluding derivatives)				1,753	-213	-	-55	-	-6	1,479	-242	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						9,505	13	-6	-136	14	-5,178	4,212	-
	Mortgage-backed securities:
		Residential						15	-	-	-	-	-13	2	-
		Commercial						189	-3	-2	-5	-	-	179	-3
			Total mortgage-backed
				securities				204	-3	-2	-5	-	-13	181	-3
	Corporate debt securities							286	14	-	-38	-	-41	221	-
	Collateralized loan and other debt obligations							9,147	27	210	841	-	-	10,225	-
	Asset-backed securities:
		Auto loans and leases						6,206	-	-2	-717	-	-	5,487	-
		Home equity loans						257	3	-3	-	2	-162	97	-
		Other asset-backed securities						3,074	-5	34	-157	-	-23	2,923	-6
			Total asset-backed securities					9,537	-2	29	-874	2	-185	8,507	-6
				Total debt securities				28,679	49	231	-212	16	-5,417	23,346	-9	-4
	Marketable equity securities:
		Perpetual preferred securities						927	14	-4	-88	-	-	849	-
		Other marketable equity securities						2	1	-	-3	-	-	-	-
				Total marketable
					equity securities			929	15	-4	-91	-	-	849	-	-5
					Total securities
						available for sale		29,608	64	227	-303	16	-5,417	24,195	-9
Mortgages held for sale								3,328	38	-	-107	127	-79	3,307	37	-6
Loans								24	59	-	79	5,851	-	6,013	59	-6
Mortgage servicing rights								12,081	-2,298	-	1,173	-	-	10,956	-1,427	-6
Net derivative assets and liabilities:
	Interest rate contracts							906	2,879	-	-2,392	-	-	1,393	1,248
	Commodity contracts							4	48	-	-21	-	-3	28	21
	Equity contracts							-269	25	-	133	-	-81	-192	1
	Foreign exchange contracts							1	19	-	2	-	-	22	21
	Credit contracts							-1,657	-15	-	291	-	-	-1,381	-2
	Other derivative contracts							-106	15	-	-	-	-	-91	-
		Total derivative contracts						-1,121	2,971	-	-1,987	-	-84	-221	1,289	-7
Other assets								225	-10	-	-22	-	-	193	-8	-3
Short sale liabilities								-9	-	-	9	-	-	-	-	-3
Other liabilities (excluding derivatives)								-245	-17	-	9	-	-	-253	-	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities and other noninterest income in the income statement.
The following table presents gross purchases, sales, issuances and settlements related to the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2012.
(in millions)								Purchases	Sales	Issuances	Settlements	Net
Quarter ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	5	-4	-	-	1
	Collateralized loan and other debt obligations							271	-245	-	-	26
	Corporate debt securities							-	-14	-	-	-14
	Mortgage-backed securities							-	-59	-	-	-59
	Asset-backed securities							6	-3	-	-12	-9
	Equity securities							-	-	-	-	-
		Total trading securities						282	-325	-	-12	-55
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				282	-325	-	-12	-55
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						199	-35	65	-365	-136
	Mortgage-backed securities:
		Residential						-	-	-	-	-
		Commercial						-	-	-	-5	-5
			Total mortgage-backed
				securities				-	-	-	-5	-5
	Corporate debt securities							-	-37	-	-1	-38
	Collateralized loan and other debt obligations							1,188	-	-	-347	841
	Asset-backed securities:
		Auto loans and leases						-	-	180	-897	-717
		Home equity loans						-	-	-	-	-
		Other asset-backed securities						94	-38	270	-483	-157
			Total asset-backed securities					94	-38	450	-1,380	-874
				Total debt securities				1,481	-110	515	-2,098	-212
	Marketable equity securities:
		Perpetual preferred securities						-	-	-	-88	-88
		Other marketable equity securities						-	-3	-	-	-3
				Total marketable
					equity securities			-	-3	-	-88	-91
					Total securities
						available for sale		1,481	-113	515	-2,186	-303
Mortgages held for sale								100	-	-	-207	-107
Loans								-	-	129	-50	79
Mortgage servicing rights								-	-	1,173	-	1,173
Net derivative assets and liabilities:
	Interest rate contracts							28	-22	-	-2,398	-2,392
	Commodity contracts							22	-8	-	-35	-21
	Equity contracts							13	49	1	70	133
	Foreign exchange contracts							-	-	-	2	2
	Credit contracts							-	-	-	291	291
	Other derivative contracts							-	-	-	-	-
		Total derivative contracts						63	19	1	-2,070	-1,987
Other assets								-	-5	-	-17	-22
Short sale liabilities								9	-	-	-	9
Other liabilities (excluding derivatives)								-2	1	-8	18	9
The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2013, are summarized as follows:
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Nine months ended September 30, 2013
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	46	2	-	-9	-	-	39	-1
	Collateralized loan and other debt obligations							742	74	-	-71	-	-202	543	-6
	Corporate debt securities							52	4	-	-36	16	-	36	2
	Mortgage-backed securities							6	1	-	9	-	-15	1	-
	Asset-backed securities							138	12	-	-55	25	-20	100	11
	Equity securities							3	-	-	-3	-	-	-	-
		Total trading securities						987	93	-	-165	41	-237	719	6
	Other trading assets							76	-16	-	-	-	-	60	-5
			Total trading assets
				(excluding derivatives)				1,063	77	-	-165	41	-237	779	1	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						3,631	7	-66	194	53	-176	3,643	-
	Mortgage-backed securities:
		Residential						94	5	9	-19	-	-1	88	-
		Commercial						203	-9	20	-14	-	-12	188	-5
			Total mortgage-backed
				securities				297	-4	29	-33	-	-13	276	-5
	Corporate debt securities							274	6	-18	-25	-	-3	234	-
	Collateralized loan and other debt obligations							13,188	-6	107	710	-	-10,613	3,386	-
	Asset-backed securities:
		Auto loans and leases						5,921	1	-28	-720	-	-	5,174	-
		Home equity loans						51	3	-1	-5	-	-48	-	-
		Other asset-backed securities						3,283	26	29	-151	24	-	3,211	-7
			Total asset-backed securities					9,255	30	-	-876	24	-48	8,385	-7
				Total debt securities				26,645	33	52	-30	77	-10,853	15,924	-12	-4
	Marketable equity securities:
		Perpetual preferred securities						794	6	-13	-47	-	-	740	-
		Other marketable equity securities						-	-	-	-	-	-	-	-
				Total marketable
					equity securities			794	6	-13	-47	-	-	740	-	-5
					Total securities
						available for sale		27,439	39	39	-77	77	-10,853	16,664	-12
Mortgages held for sale								3,250	31	-	-787	255	-316	2,433	-51	-6
Loans								6,021	-171	-	109	-	-154	5,805	-147	-6
Mortgage servicing rights								11,538	598	-	2,365	-	-	14,501	2,415	-6
Net derivative assets and liabilities:
	Interest rate contracts							659	-759	-	354	-	-	254	104
	Commodity contracts							21	3	-	-55	-1	36	4	1
	Equity contracts							-122	-42	-	168	-32	103	75	-26
	Foreign exchange contracts							21	-22	-	4	1	-	4	-14
	Credit contracts							-1,150	-20	-	474	-	-	-696	28
	Other derivative contracts							-78	54	-	-	-	-	-24	-
		Total derivative contracts						-649	-786	-	945	-32	139	-383	93	-7
Other assets								162	88	-	788	-	-	1,038	-5	-3
Short sale liabilities								-	-	-	-	-	-	-	-	-3
Other liabilities (excluding derivatives)								-49	18	-	-10	-	-	-41	5	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities, equity investments and other noninterest income in the income statement.
The following table presents gross purchases, sales, issuances and settlements related to the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2013.
(in millions)								Purchases	Sales	Issuances	Settlements	Net
Nine months ended September 30, 2013
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	125	-134	-	-	-9
	Collateralized loan and other debt obligations							691	-760	-	-2	-71
	Corporate debt securities							71	-107	-	-	-36
	Mortgage-backed securities							429	-420	-	-	9
	Asset-backed securities							14	-36	-	-33	-55
	Equity securities							-	-3	-	-	-3
		Total trading securities						1,330	-1,460	-	-35	-165
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				1,330	-1,460	-	-35	-165
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						-	-68	726	-464	194
	Mortgage-backed securities:
		Residential						-	-16	-	-3	-19
		Commercial						-	-	-	-14	-14
			Total mortgage-backed
				securities				-	-16	-	-17	-33
	Corporate debt securities							-	-	-	-25	-25
	Collateralized loan and other debt obligations							989	-14	-	-265	710
	Asset-backed securities:
		Auto loans and leases						1,102	-	813	-2,635	-720
		Home equity loans						-	-5	-	-	-5
		Other asset-backed securities						1,018	-36	781	-1,914	-151
			Total asset-backed securities					2,120	-41	1,594	-4,549	-876
				Total debt securities				3,109	-139	2,320	-5,320	-30
	Marketable equity securities:
		Perpetual preferred securities						-	-20	-	-27	-47
		Other marketable equity securities						-	-	-	-	-
				Total marketable
					equity securities			-	-20	-	-27	-47
					Total securities
						available for sale		3,109	-159	2,320	-5,347	-77
Mortgages held for sale								258	-572	-	-473	-787
Loans								23	-	344	-258	109
Mortgage servicing rights								-	-583	2,948	-	2,365
Net derivative assets and liabilities:
	Interest rate contracts							-	-	-	354	354
	Commodity contracts							-	-	-	-55	-55
	Equity contracts							-	-79	-	247	168
	Foreign exchange contracts							-	-	-	4	4
	Credit contracts							5	-4	-	473	474
	Other derivative contracts							-	-	-	-	-
		Total derivative contracts						5	-83	-	1,023	945
Other assets								820	-2	-	-30	788
Short sale liabilities								8	-8	-	-	-
Other liabilities (excluding derivatives)								-	-	-4	-6	-10
The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2012, are summarized as follows:
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Nine months ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	53	2	-	6	-	-	61	-1
	Collateralized loan and other debt obligations							1,582	-206	-	-301	-	-	1,075	-261
	Corporate debt securities							97	-2	-	-53	-	-	42	-4
	Mortgage-backed securities							108	3	-	-67	-	-	44	-2
	Asset-backed securities							190	46	-	-62	14	-16	172	35
	Equity securities							4	1	-	-2	-	-	3	-
		Total trading securities						2,034	-156	-	-479	14	-16	1,397	-233
	Other trading assets							115	-33	-	-	-	-	82	-18
			Total trading assets
				(excluding derivatives)				2,149	-189	-	-479	14	-16	1,479	-251	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						11,516	8	188	1,565	14	-9,079	4,212	-
	Mortgage-backed securities:
		Residential						61	11	11	-35	28	-74	2	-1
		Commercial						232	-17	19	-55	-	-	179	-1
			Total mortgage-backed
				securities				293	-6	30	-90	28	-74	181	-2
	Corporate debt securities							295	17	-5	-46	1	-41	221	-
	Collateralized loan and other debt obligations							8,599	112	387	1,127	-	-	10,225	-
	Asset-backed securities:
		Auto loans and leases						6,641	3	5	-1,162	-	-	5,487	-
		Home equity loans						282	14	11	-3	29	-236	97	-4
		Other asset-backed securities						2,863	-28	96	14	1	-23	2,923	-26
			Total asset-backed securities					9,786	-11	112	-1,151	30	-259	8,507	-30
				Total debt securities				30,489	120	712	1,405	73	-9,453	23,346	-32	-4
	Marketable equity securities:
		Perpetual preferred securities						1,344	85	-28	-552	-	-	849	-
		Other marketable equity securities						23	2	-15	-10	-	-	-	-
				Total marketable
					equity securities			1,367	87	-43	-562	-	-	849	-	-5
					Total securities
						available for sale		31,856	207	669	843	73	-9,453	24,195	-32
Mortgages held for sale								3,410	4	-	-176	298	-229	3,307	16	-6
Loans								23	59	-	80	5,851	-	6,013	59	-6
Mortgage servicing rights								12,603	-5,442	-	3,795	-	-	10,956	-3,216	-6
Net derivative assets and liabilities:
	Interest rate contracts							609	6,565	-	-5,781	-	-	1,393	1,292
	Commodity contracts							-	71	-	-32	-8	-3	28	36
	Equity contracts							-75	-19	-	-4	-	-94	-192	-18
	Foreign exchange contracts							-7	21	-	8	-	-	22	29
	Credit contracts							-1,998	96	-	521	-	-	-1,381	37
	Other derivative contracts							-117	26	-	-	-	-	-91	-
		Total derivative contracts						-1,588	6,760	-	-5,288	-8	-97	-221	1,376	-7
Other assets								244	-6	-	-45	-	-	193	-11	-3
Short sale liabilities								-	-	-	-	-	-	-	-	-3
Other liabilities (excluding derivatives)								-44	-19	-	-190	-	-	-253	-	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities and other noninterest income in the income statement.
The following table presents gross purchases, sales, issuances and settlements related to the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2012.
(in millions)								Purchases	Sales	Issuances	Settlements	Net
Nine months ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	73	-67	-	-	6
	Collateralized loan and other debt obligations							642	-943	-	-	-301
	Corporate debt securities							151	-204	-	-	-53
	Mortgage-backed securities							44	-111	-	-	-67
	Asset-backed securities							104	-130	-	-36	-62
	Equity securities							1	-3	-	-	-2
		Total trading securities						1,015	-1,458	-	-36	-479
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				1,015	-1,458	-	-36	-479
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						1,759	-37	965	-1,122	1,565
	Mortgage-backed securities:
		Residential						1	-34	-	-2	-35
		Commercial						10	-	-	-65	-55
			Total mortgage-backed
				securities				11	-34	-	-67	-90
	Corporate debt securities							-	-37	-	-9	-46
	Collateralized loan and other debt obligations							2,403	-185	-	-1,091	1,127
	Asset-backed securities:
		Auto loans and leases						2,040	-	490	-3,692	-1,162
		Home equity loans						-	-2	-	-1	-3
		Other asset-backed securities						996	-132	1,030	-1,880	14
			Total asset-backed securities					3,036	-134	1,520	-5,573	-1,151
				Total debt securities				7,209	-427	2,485	-7,862	1,405
	Marketable equity securities:
		Perpetual preferred securities						-	-	-	-552	-552
		Other marketable equity securities						-	-8	-	-2	-10
				Total marketable
					equity securities			-	-8	-	-554	-562
					Total securities
						available for sale		7,209	-435	2,485	-8,416	843
Mortgages held for sale								355	-	-	-531	-176
Loans								2	-	129	-51	80
Mortgage servicing rights								-	-293	4,088	-	3,795
Net derivative assets and liabilities:
	Interest rate contracts							28	-22	-	-5,787	-5,781
	Commodity contracts							22	-8	-	-46	-32
	Equity contracts							117	-133	1	11	-4
	Foreign exchange contracts							-	-	-	8	8
	Credit contracts							-5	2	-	524	521
	Other derivative contracts							-	-	-	-	-
		Total derivative contracts						162	-161	1	-5,290	-5,288
Other assets								17	-5	-	-57	-45
Short sale liabilities								9	-9	-	-	-
Other liabilities (excluding derivatives)								-3	11	-216	18	-190
The following table provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of substantially all of our Level 3 assets and liabilities measured at fair value on a recurring basis for which we use an internal model.
The significant unobservable inputs for Level 3 assets and liabilities that are valued using fair values obtained from third party vendors are not included in the table as the specific inputs applied are not provided by the vendor (see discussion regarding vendor-developed valuations within the “Level 3 Asset and Liabilities Valuation Processes” section previously within this Note). In addition, the table excludes the valuation techniques and significant unobservable inputs for certain classes of Level 3 assets and liabilities measured using an internal model that we consider, both individually and in the aggregate, insignificant relative to our overall Level 3 assets and liabilities. We made this determination based upon an evaluation of each class which considered the magnitude of the positions, nature of the unobservable inputs and potential for significant changes in fair value due to changes in those inputs.
					Fair Value				Significant	Range of				Weighted
($ in millions, except cost to service amounts)					Level 3			Valuation Technique(s)	Unobservable Input	Inputs			Average (1)
30-Sep-13
Trading and available for sale securities:
	Securities of U.S. states and
	political subdivisions:
		Government, healthcare and
			other revenue bonds		$	3,117		Discounted cash flow	Discount rate	0.4	-	6.1	%	1.4
						63		Vendor priced
		Auction rate securities and other municipal bonds				502		Discounted cash flow	Discount rate	0.4	-	11.8		4.4
									Weighted average life	1.8	-	6.6	yrs	4.7
	Collateralized loan and other debt obligations (2)					904		Market comparable pricing	Comparability adjustment	-18	-	21.7	%	2.5
						3,025		Vendor priced
	Asset-backed securities:
		Auto loans and leases				5,174		Discounted cash flow	Default rate	1.9	-	8.5		3.1
									Discount rate	0.5	-	2		0.8
									Loss severity	50	-	66		52.9
									Prepayment rate	0.6	-	1.4		0.8
		Other asset-backed securities:
			Dealer floor plan			1,782		Discounted cash flow	Discount rate	0.7	-	1.6		0.9
			Diversified payment rights (3)			654		Discounted cash flow	Discount rate	1.8	-	3.2		2.4
			Other commercial and consumer			782	-4	Discounted cash flow	Discount rate	0.1	-	21.1		2.8
									Weighted average life	0.8	-	6.9	yrs	2.5
						93		Vendor priced
	Marketable equity securities: perpetual
	preferred					740	-5	Discounted cash flow	Discount rate	4.8	-	7.9	%	7
									Weighted average life	1	-	15	yrs	12.1
Mortgages held for sale (residential)						2,433		Discounted cash flow	Default rate	0.6	-	14.4	%	3
									Discount rate	3.6	-	7.9		5.5
									Loss severity	1.3	-	33.3		21.6
									Prepayment rate	2	-	9.7		5.5
Loans						5,805	-6	Discounted cash flow	Discount rate	2.4	-	3.6		3.1
									Prepayment rate	3.1	-	39.3		12.2
									Utilization rate	0	-	2		0.8
Mortgage servicing rights (residential)						14,501		Discounted cash flow	Cost to service per loan (7)	$87	-	826		198
									Discount rate	5.6	-	11.1	%	7.6
									Prepayment rate (8)	6.8	-	20		11.7
Net derivative assets and (liabilities):
	Interest rate contracts					35		Discounted cash flow	Default rate	0.2	-	15.5		5
									Loss severity	40.9	-	50		50
									Prepayment rate	11	-	15.6		15.6
	Interest rate contracts: derivative loan
		commitments				219	-9	Discounted cash flow	Fall-out factor	1	-	99		27.6
									Initial-value servicing	-6.8	-	82.8	bps	41.5
	Equity contracts					199		Discounted cash flow	Conversion factor	-20.2	-	0	%	-17.6
									Weighted average life	0.5	-	3.5	yrs	1.6
						-124		Option model	Correlation factor	0	-	88	%	75.7
									Volatility factor	10.9	-	68.2		23.2
	Credit contracts					-700		Market comparable pricing	Comparability adjustment	-30.7	-	34.5		0.4
						4		Option model	Credit spread	0.1	-	15.2		1.1
									Loss severity	16.5	-	87.5		43.9
Other assets: nonmarketable equity investments						911		Market comparable pricing	Comparability adjustment	-30	-	-4		-24.8
Insignificant Level 3 assets,
	net of liabilities					677	-10
		Total level 3 assets, net of liabilities			$	40,796	-11
Weighted averages are calculated using outstanding unpaid principal balance for cash instruments such as loans and securities, and notional amounts for derivative instruments.
Includes $705 million of collateralized debt obligations.
Securities backed by specified sources of current and future receivables generated from foreign originators.
Consists primarily of investments in asset-backed securities that are revolving in nature, in which the timing of advances and repayments of principal are uncertain.
Consists of auction rate preferred equity securities with no maturity date that are callable by the issuer.
Consists predominantly of reverse mortgage loans securitized with GNMA which were accounted for as secured borrowing transactions.
The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $87 - $339.
Includes a blend of prepayment speeds and expected defaults. Prepayment speeds are influenced by mortgage interest rates as well as our estimation of drivers of borrower behavior.
Total derivative loan commitments were a net asset of $222 million, of which $219 million were classified as level 3 at September 30, 2013.
Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes corporate debt securities, mortgage-backed securities, asset-backed securities backed by home equity loans, other marketable equity securities, other liabilities and certain net derivative assets and liabilities, such as commodity contracts, foreign exchange contracts and other derivative contracts.
Consists of total Level 3 assets of $43.6 billion and total Level 3 liabilities of $2.8 billion, before netting of derivative balances.
					Fair Value				Significant	Range of				Weighted
($ in millions, except cost to service amounts)					Level 3			Valuation Technique(s)	Unobservable Input	Inputs				Average (1)
31-Dec-12
Trading and available for sale securities:
	Securities of U.S. states and
	political subdivisions:
		Government, healthcare and
			other revenue bonds		$	3,081		Discounted cash flow	Discount rate	0.5	-	4.8	%	1.8
		Auction rate securities and other municipal bonds				596		Discounted cash flow	Discount rate	2	-	12.9		4.4
									Weighted average life	3	-	7.5	yrs	3.4
	Collateralized loan and other debt obligations(2)					1,423		Market comparable pricing	Comparability adjustment	-22.5	-	24.7	%	3.5
						12,507		Vendor priced
	Asset-backed securities:
		Auto loans and leases				5,921		Discounted cash flow	Default rate	2.1	-	9.7		3.2
									Discount rate	0.6	-	1.6		1
									Loss severity	50	-	66.6		51.8
									Prepayment rate	0.6	-	0.9		0.7
		Other asset-backed securities:
			Dealer floor plan			1,030		Discounted cash flow	Discount rate	0.5	-	2.2		1.9
			Diversified payment rights (3)			639		Discounted cash flow	Discount rate	1	-	2.9		1.8
			Other commercial and consumer			1,665	-4	Discounted cash flow	Discount rate	0.6	-	6.8		2.7
									Weighted average life	1	-	7.5	yrs	2.9
						87		Vendor priced
	Marketable equity securities: perpetual
		preferred				794	-5	Discounted cash flow	Discount rate	4.3	-	9.3	%	6.3
									Weighted average life	1	-	7	yrs	5.3
Mortgages held for sale (residential)						3,250		Discounted cash flow	Default rate	0.6	-	14.8	%	5.5
									Discount rate	3.4	-	7.5		5.4
									Loss severity	1.3	-	35.3		26.4
									Prepayment rate	1	-	11		6.2
Loans						6,021	-6	Discounted cash flow	Discount rate	2.4	-	2.8		2.6
									Prepayment rate	1.6	-	44.4		11.6
									Utilization rate	0	-	2		0.8
Mortgage servicing rights (residential)						11,538		Discounted cash flow	Cost to service per loan (7)	$90	-	854		219
									Discount rate	6.7	-	10.9	%	7.4
									Prepayment rate (8)	7.3	-	23.7		15.7
Net derivative assets and (liabilities):
	Interest rate contracts					162		Discounted cash flow	Default rate	0	-	20		5.4
									Loss severity	45.8	-	83.2		51.6
									Prepayment rate	7.4	-	15.6		14.9
	Interest rate contracts: derivative loan
		commitments				497		Discounted cash flow	Fall-out factor	1	-	99		22.9
									Initial-value servicing	-13.7	-	137.2	bps	85.6
	Equity contracts					-122		Option model	Correlation factor	-43.6	-	94.5	%	50.3
									Volatility factor	3	-	68.9		26.5
	Credit contracts					-1,157		Market comparable pricing	Comparability adjustment	-34.4	-	30.5		0.1
						8		Option model	Credit spread	0.1	-	14		2
									Loss severity	16.5	-	87.5		52.3
Insignificant Level 3 assets,
	net of liabilities					835	-9
		Total level 3 assets, net of liabilities			$	48,775	-10
Weighted averages are calculated using outstanding unpaid principal balance for cash instruments such as loans and securities, and notional amounts for derivative instruments.
Includes $665 million of collateralized debt obligations.
Securities backed by specified sources of current and future receivables generated from foreign originators.
Consists primarily of investments in asset-backed securities that are revolving in nature, in which the timing of advances and repayments of principal are uncertain.
Consists of auction rate preferred equity securities with no maturity date that are callable by the issuer.
Consists predominantly of reverse mortgage loans securitized with GNMA which were accounted for as secured borrowing transactions.
The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $90 - $437.
Includes a blend of prepayment speeds and expected defaults. Prepayment speeds are influenced by mortgage interest rates as well as our estimation of drivers of borrower behavior.
Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes corporate debt securities, mortgage-backed securities, asset-backed securities backed by home equity loans, other marketable equity securities, other assets, other liabilities and certain net derivative assets and liabilities, such as commodity contracts, foreign exchange contracts and other derivative contracts.
Consists of total Level 3 assets of $51.9 billion and total Level 3 liabilities of $3.1 billion, before netting of derivative balances.
The valuation techniques used for our Level 3 assets and liabilities, as presented in the previous table, are described as follows:
Discounted cash flow - Discounted cash flow valuation techniques generally consist of developing an estimate of future cash flows that are expected to occur over the life of an instrument and then discounting those cash flows at a rate of return that results in the fair value amount.
Option model - Option model valuation techniques are generally used for instruments in which the holder has a contingent right or obligation based on the occurrence of a future event, such as the price of a referenced asset going above or below a predetermined strike price. Option models estimate the likelihood of the specified event occurring by incorporating assumptions such as volatility estimates, price of the underlying instrument and expected rate of return.
Market comparable pricing - Market comparable pricing valuation techniques are used to determine the fair value of certain instruments by incorporating known inputs such as recent transaction prices, pending transactions, or prices of other similar investments which require significant adjustment to reflect differences in instrument characteristics.
Vendor-priced – Prices obtained from third party pricing vendors or brokers that are used to record the fair value of the asset or liability, of which the related valuation technique and significant unobservable inputs are not provided.
Significant unobservable inputs presented in the previous table are those we consider significant to the fair value of the Level 3 asset or liability. We consider unobservable inputs to be significant, if by their exclusion, the fair value of the Level 3 asset or liability would be impacted by a predetermined percentage change or based on qualitative factors such as nature of the instrument, type of valuation technique used, and the significance of the unobservable inputs relative to other inputs used within the valuation. Following is a description of the significant unobservable inputs provided in the table.
Comparability adjustment – is an adjustment made to observed market data such as a transaction price in order to reflect dissimilarities in underlying collateral, issuer, rating, or other factors used within a market valuation approach, expressed as a percentage of an observed price.
Conversion Factor – is the risk-adjusted rate in which a particular instrument may be exchanged for another instrument upon settlement, expressed as a percentage change from a specified rate.
Correlation factor - is the likelihood of one instrument changing in price relative to another based on an established relationship expressed as a percentage of relative change in price over a period over time.
Cost to service - is the expected cost per loan of servicing a portfolio of loans which includes estimates for unreimbursed expenses (including delinquency and foreclosure costs) that may occur as a result of servicing such loan portfolios.
Credit spread – is the portion of the interest rate in excess of a benchmark interest rate, such as LIBOR or U.S. Treasury rates, that when applied to an investment captures changes in the obligor's creditworthiness.
Default rate – is an estimate of the likelihood of not collecting contractual amounts owed expressed as a constant default rate (CDR).
Discount rate – is a rate of return used to present value the future expected cash flow to arrive at the fair value of an instrument. The discount rate consists of a benchmark rate component and a risk premium component. The benchmark rate component, for example, LIBOR or U.S. Treasury rates, is generally observable within the market and is necessary to appropriately reflect the time value of money. The risk premium component reflects the amount of compensation market participants require due to the uncertainty inherent in the instruments' cash flows resulting from risks such as credit and liquidity.
Fall-out factor - is the expected percentage of loans associated with our interest rate lock commitment portfolio that are likely of not funding.
Initial-value servicing - is the estimated value of the underlying loan, including the value attributable to the embedded servicing right, expressed in basis points of outstanding unpaid principal balance.
Loss severity – is the percentage of contractual cash flows lost in the event of a default.
Prepayment rate – is the estimated rate at which forecasted prepayments of principal of the related loan or debt instrument are expected to occur, expressed as a constant prepayment rate (CPR).
Utilization rate – is the estimated rate in which incremental portions of existing reverse mortgage credit lines are expected to be drawn by borrowers, expressed as an annualized rate.
Volatility factor – is the extent of change in price an item is estimated to fluctuate over a specified period of time expressed as a percentage of relative change in price over a period over time.
Weighted average life – is the weighted average number of years an investment is expected to remain outstanding, based on its expected cash flows reflecting the estimated date the issuer will call or extend the maturity of the instrument or otherwise reflecting an estimate of the timing of an instrument's cash flows whose timing is not contractually fixed.
Significant Recurring Level 3 Fair Value Asset and Liability Input Sensitivity
We generally use discounted cash flow or similar internal modeling techniques to determine the fair value of our Level 3 assets and liabilities. Use of these techniques requires determination of relevant inputs and assumptions, some of which represent significant unobservable inputs as indicated in the preceding table. Accordingly, changes in these unobservable inputs may have a significant impact on fair value.
Certain of these unobservable inputs will (in isolation) have a directionally consistent impact on the fair value of the instrument for a given change in that input. Alternatively, the fair value of the instrument may move in an opposite direction for a given change in another input. Where multiple inputs are used within the valuation technique of an asset or liability, a change in one input in a certain direction may be offset by an opposite change in another input having a potentially muted impact to the overall fair value of that particular instrument. Additionally, a change in one unobservable input may result in a change to another unobservable input (that is, changes in certain inputs are interrelated to one another), which may counteract or magnify the fair value impact.
SECURITIES, LOANS and MORTGAGES HELD FOR SALE The fair values of predominantly all Level 3 trading securities, mortgages held for sale, loans, other nonmarketable equity investments, and securities available for sale have consistent inputs, valuation techniques and correlation to changes in underlying inputs. The internal models used to determine fair value for these Level 3 instruments use certain significant unobservable inputs within a discounted cash flow or market comparable pricing valuation technique. Such inputs include discount rate, prepayment rate, default rate, loss severity, utilization rate and weighted average life.
These Level 3 assets would decrease (increase) in value based upon an increase (decrease) in discount rate, default rate, loss severity, or weighted average life inputs. Conversely, the fair value of these Level 3 assets would generally increase (decrease) in value if the prepayment rate input were to increase (decrease) or if the utilization rate input were to increase (decrease).
Generally, a change in the assumption used for default rate is accompanied by a directionally similar change in the risk premium component of the discount rate (specifically, the portion related to credit risk) and a directionally opposite change in the assumption used for prepayment rates. Unobservable inputs for loss severity, utilization rate and weighted average life do not increase or decrease based on movements in the other significant unobservable inputs for these Level 3 assets.
DERIVATIVE INSTRUMENTS Level 3 derivative instruments are valued using market comparable pricing, option pricing and discounted cash flow valuation techniques. We utilize certain unobservable inputs within these techniques to determine the fair value of the Level 3 derivative instruments. The significant unobservable inputs consist of credit spread, a comparability adjustment, prepayment rate, default rate, loss severity, initial value servicing, fall-out factor, volatility factor, weighted average life, conversion factor, and correlation factor.
Level 3 derivative assets (liabilities) would decrease (increase) in value upon an increase (decrease) in default rate, fall-out factor, credit spread, conversion factor, or loss severity inputs. Conversely, Level 3 derivative assets (liabilities) would increase (decrease) in value upon an increase (decrease) in prepayment rate, initial-value servicing, weighted average life, or volatility factor inputs. The correlation factor and comparability adjustment inputs may have a positive or negative impact on the fair value of these derivative instruments depending on the change in value of the item the correlation factor and comparability adjustment is referencing. The correlation factor and comparability adjustment is considered independent from movements in other significant unobservable inputs for derivative instruments.
Generally, for derivative instruments for which we are subject to changes in the value of the underlying referenced instrument, change in the assumption used for default rate is accompanied by directionally similar change in the risk premium component of the discount rate (specifically, the portion related to credit risk) and a directionally opposite change in the assumption used for prepayment rates. Unobservable inputs for loss severity, fall-out factor, initial-value servicing, weighted average life, conversion factor, and volatility do not increase or decrease based on movements in other significant unobservable inputs for these Level 3 instruments.
MORTGAGE SERVICING RIGHTS We use a discounted cash flow valuation technique to determine the fair value of Level 3 mortgage servicing rights. These models utilize certain significant unobservable inputs including prepayment rate, discount rate and costs to service. An increase in any of these unobservable inputs will reduce the fair value of the mortgage servicing rights and alternatively, a decrease in any one of these inputs would result in the mortgage servicing rights increasing in value. Generally, a change in the assumption used for the default rate is accompanied by a directionally similar change in the assumption used for cost to service and a directionally opposite change in the assumption used for prepayment. The sensitivity of our residential MSRs is discussed further in Note 7.
Assets and Liabilities Recorded at Fair Value on a Nonrecurring Basis
We may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of LOCOM accounting or write-downs of individual assets. For assets measured at fair value on a nonrecurring basis in the first nine months of 2013, and year ended December 31, 2012, that were still held in the balance sheet at each respective period end, the following table provides the fair value hierarchy and the fair value of the related individual assets or portfolios at period end.
								30-Sep-13					31-Dec-12
(in millions)								Level 1	Level 2	Level 3	Total		Level 1	Level 2	Level 3	Total
Mortgages held for sale (LOCOM) (1)							$	-	721	922	1,643		-	1,509	1,045	2,554
Loans held for sale								-	39	-	39		-	4	-	4
Loans:
	Commercial							-	430	7	437		-	1,507	-	1,507
	Consumer							-	3,517	7	3,524		-	5,889	4	5,893
		Total loans (2)						-	3,947	14	3,961		-	7,396	4	7,400
Other assets (3)								-	402	115	517		-	989	144	1,133
Predominantly real estate 1-4 family first mortgage loans.
Represents carrying value of loans for which adjustments are based on the appraised value of the collateral.
Includes the fair value of foreclosed real estate and other collateral owned that were measured at fair value subsequent to their initial classification as foreclosed assets.
The following table presents the increase (decrease) in value of certain assets that are measured at fair value on a nonrecurring basis for which a fair value adjustment has been recognized in the periods presented.
							Nine months ended Sept. 30,
(in millions)								2013		2012
Mortgages held for sale (LOCOM)							$	-13		45
Loans held for sale								-1		1
Loans:
	Commercial							-156		-788
	Consumer(1)							-1,803		-2,813
		Total loans						-1,959		-3,601
Other assets (2)								-191		-320
			Total				$	-2,164		-3,875
Represents write-downs of loans based on the appraised value of the collateral.
Includes the losses on foreclosed real estate and other collateral owned that were measured at fair value subsequent to their initial classification as foreclosed assets.
The table below provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of substantially all of our Level 3 assets and liabilities measured at fair value on a nonrecurring basis for which we use an internal model.
We have excluded from the table classes of Level 3 assets and liabilities measured using an internal model that we consider, both individually and in the aggregate, insignificant relative to our overall Level 3 nonrecurring measurements. We made this determination based upon an evaluation of each class which considered the magnitude of the positions, nature of the unobservable inputs and potential for significant changes in fair value due to changes in those inputs.
								Fair Value			Significant		Range				Weighted
($ in millions)								Level 3		Valuation Technique(s) (1)	Unobservable Inputs (1)		of inputs				Average (2)
30-Sep-13
Residential mortgages held for sale
	(LOCOM)						$	922	-3	Discounted cash flow	Default rate	-4	1.2	-	5.6	%	2.7	%
											Discount rate		4.3	-	12.1		11.1
											Loss severity		1.9	-	47.5		5.2
											Prepayment rate	-5	2	-	100		67.1
Insignificant level 3 assets								129
	Total							1,051
31-Dec-12
Residential mortgages held for sale							$	1,045	-3	Discounted cash flow	Default rate	-4	2.9	-	21.2	%	7.9	%
	(LOCOM)										Discount rate		4.1	-	11.9		10.9
											Loss severity		2	-	45		6
											Prepayment rate	-5	1	-	100		66.7
Insignificant level 3 assets								148
	Total							1,193
Refer to the narrative following the recurring quantitative Level 3 table of this Note for a definition of the valuation technique(s) and significant unobservable inputs.
Weighted averages are calculated using outstanding unpaid principal balance of the loans.
Consists of approximately $853 million and $942 million government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitization, at September 30, 2013 and December 31, 2012, respectively and $69 million and $103 million of other mortgage loans which are not government insured/guaranteed at September 30, 2013 and December 31, 2012, respectively.
Applies only to non-government insured/guaranteed loans.
Includes the impact on prepayment rate of expected defaults for the government insured/guaranteed loans, which impacts the frequency and timing of early resolution of loans.
Alternative Investments
The following table summarizes our investments in various types of funds, which are included in trading assets, securities available for sale and other assets. We use the funds' net asset values (NAVs) per share as a practical expedient to measure fair value on recurring and nonrecurring bases. The fair values presented in the table are based upon the funds' NAVs or an equivalent measure.
											Redemption
								Fair	Unfunded	Redemption	notice
(in millions)								value	commitments	frequency	period
30-Sep-13
Offshore funds							$	391	-	Daily - Quarterly	1 - 180 days
Funds of funds								-	-	N/A	N/A
Hedge funds								3	-	Monthly - Semi Annually	5 - 95 days
Private equity funds								740	170	N/A	N/A
Venture capital funds								77	16	N/A	N/A
	Total						$	1,211	186
31-Dec-12
Offshore funds							$	379	-	Daily - Annually	1 - 180 days
Funds of funds								1	-	Quarterly	90 days
Hedge funds								2	-	Daily - Annually	5 - 95 days
Private equity funds								807	195	N/A	N/A
Venture capital funds								82	21	N/A	N/A
	Total						$	1,271	216
N/A - Not applicable
Offshore funds primarily invest in investment grade European fixed-income securities. Redemption restrictions are in place for these investments with a fair value of $187 million and $189 million at September 30, 2013 and December 31, 2012, respectively, due to lock-up provisions that will remain in effect until February 2016.
Private equity funds invest in equity and debt securities issued by private and publicly-held companies in connection with leveraged buyouts, recapitalizations and expansion opportunities. Substantially all of these investments do not allow redemptions. Alternatively, we receive distributions as the underlying assets of the funds liquidate, which we expect to occur over the next twelve years.
Venture capital funds invest in domestic and foreign companies in a variety of industries, including information technology, financial services and healthcare. These investments can never be redeemed with the funds. Instead, we receive distributions as the underlying assets of the fund liquidate, which we expect to occur over the next five years.
Fair Value Option
We measure MHFS at fair value for prime MHFS originations for which an active secondary market and readily available market prices exist to reliably support fair value pricing models used for these loans. Loan origination fees on these loans are recorded when earned, and related direct loan origination costs are recognized when incurred. We also measure at fair value certain of our other interests held related to residential loan sales and securitizations. We believe fair value measurement for prime MHFS and other interests held, which we hedge with free-standing derivatives (economic hedges) along with our MSRs measured at fair value, reduces certain timing differences and better matches changes in the value of these assets with changes in the value of derivatives used as economic hedges for these assets.
We elected to measure certain LHFS portfolios at fair value in conjunction with customer accommodation activities, to better align the measurement basis of the assets held with our management objectives given the trading nature of these portfolios. In addition, we elected to measure at fair value certain letters of credit and nonmarketable equity securities that are hedged with derivative instruments to better reflect the economics of the transactions. The letters of credit are included in trading account assets or liabilities, and the nonmarketable equity securities are included in other assets.
Loans that we measure at fair value consist predominantly of reverse mortgage loans previously transferred under a GNMA reverse mortgage securitization program accounted for as a secured borrowing. Before the transfer, they were classified as MHFS measured at fair value and, as such, remain carried on our balance sheet under the fair value option.
Similarly, we may elect fair value option for the assets and liabilities of certain consolidated VIEs. This option is generally elected for newly consolidated VIEs for which predominantly all of our interests, prior to consolidation, are carried at fair value with changes in fair value recorded to earnings. Accordingly, such an election allows us to continue fair value accounting through earnings for those interests and eliminate income statement mismatch otherwise caused by differences in the measurement basis of the consolidated VIEs assets and liabilities.
The following table reflects the differences between fair value carrying amount of certain assets and liabilities for which we have elected the fair value option and the contractual aggregate unpaid principal amount at maturity.
				30-Sep-13				31-Dec-12
						Fair value				Fair value
						carrying				carrying
						amount				amount
						less				less
			Fair value		Aggregate	aggregate		Fair value	Aggregate	aggregate
				carrying	unpaid	unpaid		carrying	unpaid	unpaid
(in millions)				amount	principal	principal		amount	principal	principal
Mortgages held for sale:
	Total loans		$	23,209	22,836	373	-1	42,305	41,183	1,122	-1
	Nonaccrual loans			264	460	-196		309	655	-346
	Loans 90 days or more past due and still accruing			36	43	-7		49	64	-15
Loans held for sale:
	Total loans			2	9	-7		6	10	-4
	Nonaccrual loans			2	9	-7		2	6	-4
Loans:
	Total loans			6,051	5,689	362		6,206	5,669	537
	Nonaccrual loans			141	142	-1		89	89	-
	Loans 90 days or more past due and still accruing			18	17	1		-	-	-
Other assets (2)				911	n/a	n/a		-	n/a	n/a
Long-term debt				-	-199	199	-3	-1	-1,157	1,156	-3
The difference between fair value carrying amount and aggregate unpaid principal includes changes in fair value recorded at and subsequent to funding, gains and losses on the related loan commitment prior to funding, and premiums on acquired loans.
Consists of nonmarketable equity investments carried at fair value. See Note 6 for more information.
Represents collateralized, non-recourse debt securities issued by certain of our consolidated securitization VIEs that are held by third party investors. To the extent cash flows from the underlying collateral are not sufficient to pay the unpaid principal amount of the debt, those third party investors absorb losses.
The assets and liabilities accounted for under the fair value option are initially measured at fair value. Gains and losses from initial measurement and subsequent changes in fair value are recognized in earnings. The changes in fair value related to initial measurement and subsequent changes in fair value included in earnings for these assets and liabilities measured at fair value are shown, by income statement line item, below.
		2013					2012
				Net gains				Net gains
		Mortgage		(losses)			Mortgage	(losses)
		banking		from	Other		banking	from	Other
		noninterest		trading	noninterest		noninterest	trading	noninterest
(in millions)			income	activities	income		income	activities	income
Quarter ended September 30,
Mortgages held for sale		$	771	-	-		2,594	-	-
Loans held for sale			-	-	-		-	-	4
Loans			-	-	-21		-	-	54
Other assets			-	-	54		-	-	-
Long-term debt			-	-	-		-	-	-19
Other interests held (1)			-	-4	-		-	-12	18
Nine months ended September 30,
Mortgages held for sale		$	1,805	-	-		6,915	-	1
Loans held for sale			-	-	-		-	-	23
Loans			-	-	-175		-	-	81
Other assets			-	-	93		-	-	-
Long-term debt			-	-	-		-	-	-23
Other interests held (1)			-	-17	6		-	-36	33
-1	Consists of retained interests in securitization and changes in fair value of letters of credit.
For performing loans, instrument-specific credit risk gains or losses were derived principally by determining the change in fair value of the loans due to changes in the observable or implied credit spread. Credit spread is the market yield on the loans less the relevant risk-free benchmark interest rate. In recent years spreads have been significantly affected by the lack of liquidity in the secondary market for mortgage loans. For nonperforming loans, we attribute all changes in fair value to instrument-specific credit risk. The following table shows the estimated gains and losses from earnings attributable to instrument-specific credit risk related to assets accounted for under the fair value option.
			Quarter ended Sept. 30,				Nine months ended Sept. 30,
(in millions)				2013	2012		2013	2012
Gains (losses) attributable to instrument-specific credit risk:
	Mortgages held for sale		$	1	-8		126	-99
	Loans held for sale			-	4		-	23
		Total	$	1	-4		126	-76
Disclosures about Fair Value of Financial Instruments
The table below is a summary of fair value estimates for financial instruments, excluding financial instruments recorded at fair value on a recurring basis as they are included within the Assets and Liabilities Recorded at Fair Value on a Recurring Basis table included earlier in this Note. The carrying amounts in the following table are recorded in the balance sheet under the indicated captions.
We have not included assets and liabilities that are not financial instruments in our disclosure, such as the value of the long-term relationships with our deposit, credit card and trust customers, amortized MSRs, premises and equipment, goodwill and other intangibles, deferred taxes and other liabilities. The total of the fair value calculations presented does not represent, and should not be construed to represent, the underlying value of the Company.
						Estimated fair value
(in millions)				Carrying amount		Level 1		Level 2		Level 3		Total
30-Sep-13
Financial assets
	Cash and due from banks (1)		$	18,928		18,928		-		-		18,928
	Federal funds sold, securities purchased under resale
		agreements and other short-term investments (1)		182,036		5,327		176,709		-		182,036
	Mortgages held for sale (2)			2,186		-		1,267		922		2,189
	Loans held for sale (2)			202		-		182		24		206
	Loans, net (3)			779,525		-		56,776		728,612		785,388
	Nonmarketable equity investments (cost method)			7,201		-		-		8,700		8,700
Financial liabilities
	Deposits			1,041,871		-		996,869		45,421		1,042,290
	Short-term borrowings (1)			53,851		-		53,851		-		53,851
	Long-term debt (4)			151,201		-		142,862		10,678		153,540
31-Dec-12
Financial assets
	Cash and due from banks (1)		$	21,860		21,860		-		-		21,860
	Federal funds sold, securities purchased under resale
		agreements and other short-term investments (1)		137,313		5,046		132,267		-		137,313
	Mortgages held for sale (2)			4,844		-		3,808		1,045		4,853
	Loans held for sale (2)			104		-		83		29		112
	Loans, net (3)			763,968		-		56,237		716,114		772,351
	Nonmarketable equity investments (cost method)			6,799		-		2		8,229		8,231
Financial liabilities
	Deposits			1,002,835		-		946,922		57,020		1,003,942
	Short-term borrowings (1)			57,175		-		57,175		-		57,175
	Long-term debt (4)			127,366		-		119,220		11,063		130,283
Amounts consist of financial instruments in which carrying value approximates fair value.
Balance reflects MHFS and LHFS, as applicable, other than those MHFS and LHFS for which election of the fair value option was made.
Loans exclude balances for which the fair value option was elected and also exclude lease financing with a carrying amount of $11.7 billion and $12.4 billion at September 30, 2013 and December 31, 2012, respectively.
The carrying amount and fair value exclude balances for which the fair value option was elected and obligations under capital leases of $11 million and $12 million at September 30, 2013 and December 31, 2012, respectively.
Loan commitments, standby letters of credit and commercial and similar letters of credit are not included in the table above. A reasonable estimate of the fair value of these instruments is the carrying value of deferred fees plus the related allowance. This amounted to $617 million and $586 million at September 30, 2013 and December 31, 2012, respectively.

Preferred_Stock

Preferred Stock	9 Months Ended
	Sep. 30, 2013
Preferred Stock [Abstract]	'
Preferred Stock	'
	Note 14: Preferred Stock
	We are authorized to issue 20 million shares of preferred stock and 4 million shares of preference stock, both without par value. Preferred shares outstanding rank senior to common shares both as to dividends and liquidation preference but have no general voting rights. We have not issued any preference shares under this authorization. If issued, preference shares would be limited to one vote per share. Our total issued and outstanding preferred stock includes Dividend Equalization Preferred (DEP) shares and Series I, J, K, L, N, O, P and Q which are presented in the following two tables, and Employee Stock Ownership Plan (ESOP) Cumulative Convertible Preferred Stock, which is presented in the second table below and the table on the following page.
			30-Sep-13				31-Dec-12
				Liquidation	Shares			Liquidation	Shares
				preference	authorized			preference	authorized
				per share	and designated			per share	and designated
	DEP Shares
	Dividend Equalization Preferred Shares		$	10	97,000		$	10	97,000
	Series G
	7.25% Class A Preferred Stock			15,000	50,000			15,000	50,000
	Series H
	Floating Class A Preferred Stock			20,000	50,000			20,000	50,000
	Series I
	Floating Class A Preferred Stock			100,000	25,010			100,000	25,010
	Series J
	8.00% Non-Cumulative Perpetual Class A Preferred Stock			1,000	2,300,000			1,000	2,300,000
	Series K
	7.98% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock			1,000	3,500,000			1,000	3,500,000
	Series L
	7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock			1,000	4,025,000			1,000	4,025,000
	Series N
	5.20% Non-Cumulative Perpetual Class A Preferred Stock			25,000	30,000			25,000	30,000
	Series O
	5.125% Non-Cumulative Perpetual Class A Preferred Stock			25,000	27,600			25,000	27,600
	Series P
	5.25% Non-Cumulative Perpetual Class A Preferred Stock			25,000	26,400			-	-
	Series Q
	5.85% Non-Cumulative Perpetual Class A Preferred Stock			25,000	69,000			-	-
		Total			10,200,010				10,104,610
			30-Sep-13						31-Dec-12
			Shares						Shares
			issued and		Par	Carrying			issued and		Par	Carrying
	(in millions, except shares)		outstanding		value	value	Discount		outstanding		value	value	Discount
	DEP Shares
	Dividend Equalization Preferred Shares		96,546	$	-	-	-		96,546	$	-	-	-
	Series I (1)
	Floating Class A Preferred Stock		25,010		2,501	2,501	-		25,010		2,501	2,501	-
	Series J (1)
	8.00% Non-Cumulative Perpetual Class A Preferred Stock		2,150,375		2,150	1,995	155		2,150,375		2,150	1,995	155
	Series K (1)
	7.98% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock		3,352,000		3,352	2,876	476		3,352,000		3,352	2,876	476
	Series L (1)
	7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock		3,968,000		3,968	3,200	768		3,968,000		3,968	3,200	768
	Series N (1)
	5.20% Non-Cumulative Perpetual Class A Preferred Stock		30,000		750	750	-		30,000		750	750	-
	Series O (1)
	5.125% Non-Cumulative Perpetual Class A Preferred Stock		26,000		650	650	-		26,000		650	650	-
	Series P (1)
	5.25% Non-Cumulative Perpetual Class A Preferred Stock		25,000		625	625	-		-		-	-	-
	Series Q (1)
	5.85% Non-Cumulative Perpetual Class A Preferred Stock		69,000		1,725	1,725	-		-		-	-	-
	ESOP
	Cumulative Convertible Preferred Stock		1,227,182		1,227	1,227	-		910,934		911	911	-
		Total	10,969,113	$	16,948	15,549	1,399		10,558,865	$	14,282	12,883	1,399
	Preferred shares qualify as Tier 1 capital.
	In March 2013, we issued 25 million Depositary Shares, each representing a 1/1,000th interest in a share of the Non-Cumulative Perpetual Class A Preferred Stock, Series P, for an aggregate public offering price of $625 million.
	In July 2013, we issued 69 million Depositary Shares, each representing a 1/1,000th interest in a share of the Non-Cumulative Perpetual Class A Preferred Stock, Series Q, for an aggregate public offering price of $1.7 billion.
	See Note 7 for additional information on our trust preferred securities. We do not have a commitment to issue Series G or H preferred stock.
	ESOP Cumulative Convertible Preferred Stock All shares of our ESOP Cumulative Convertible Preferred Stock (ESOP Preferred Stock) were issued to a trustee acting on behalf of the Wells Fargo & Company 401(k) Plan (the 401(k) Plan). Dividends on the ESOP Preferred Stock are cumulative from the date of initial issuance and are payable quarterly at annual rates based upon the year of issuance. Each share of ESOP Preferred Stock released from the unallocated reserve of the 401(k) Plan is converted into shares of our common stock based on the stated value of the ESOP Preferred Stock and the then current market price of our common stock. The ESOP Preferred Stock is also convertible at the option of the holder at any time, unless previously redeemed. We have the option to redeem the ESOP Preferred Stock at any time, in whole or in part, at a redemption price per share equal to the higher of (a) $1,000 per share plus accrued and unpaid dividends or (b) the fair market value, as defined in the Certificates of Designation for the ESOP Preferred Stock.
			Shares issued and outstanding				Carrying value				Adjustable
			Sept. 30,	Dec. 31,			Sept. 30,		Dec. 31,		dividend rate
	(in millions, except shares)		2013	2012			2013		2012		Minimum	Maximum
	ESOP Preferred Stock
$1,000 liquidation preference per share
	2013	434,007	-		$	434		-		8.5	%	11
	2012	224,454	245,604			224		246		10		11
	2011	250,263	277,263			250		277		9		10
	2010	178,511	201,011			179		201		9.5		10.5
	2008	61,724	73,434			62		73		10.5		11.5
	2007	42,878	53,768			43		54		10.75		11.75
	2006	24,244	33,559			24		34		10.75		11.75
	2005	11,101	18,882			11		19		9.75		10.75
	2004	-	7,413			-		7		8.5		9.5
Total ESOP Preferred Stock (1)		1,227,182	910,934		$	1,227		911
Unearned ESOP shares (2)					$	-1,332		-986
At September 30, 2013 and December 31, 2012, additional paid-in capital included $105 million and $75 million, respectively, related to ESOP preferred stock.
We recorded a corresponding charge to unearned ESOP shares in connection with the issuance of the ESOP Preferred Stock. The unearned ESOP shares are reduced as shares of the ESOP Preferred Stock are committed to be released.

Employee_Benefits

Employee Benefits	9 Months Ended
	Sep. 30, 2013
Pension and Other Postretirement Benefit Expense [Abstract]	'
Employee Benefits	'
	Note 15: Employee Benefits
	We sponsor a noncontributory qualified defined benefit retirement plan, the Wells Fargo & Company Cash Balance Plan (Cash Balance Plan), which covers eligible employees of Wells Fargo. Benefits accrued under the Cash Balance Plan were frozen effective July 1, 2009.
	The net periodic benefit cost was:
				2013			2012
				Pension benefits			Pension benefits
					Non-	Other		Non-	Other
	(in millions)		Qualified		qualified	benefits	Qualified	qualified	benefits
	Quarter ended September 30,
	Service cost		$	1	-	3	-	1	3
	Interest cost			121	7	11	128	8	15
	Expected return on plan assets			-166	-	-9	-162	-	-9
	Amortization of net actuarial loss			29	4	-	33	2	-
	Amortization of prior service credit			-	-	-1	-	-	-1
	Settlement			27	-	-	1	-	-2
		Net periodic benefit cost (income)	$	12	11	4	-	11	6
	Nine months ended September 30,
	Service cost		$	1	-	8	1	1	9
	Interest cost			347	21	35	384	24	45
	Expected return on plan assets			-507	-	-27	-487	-	-26
	Amortization of net actuarial loss			113	11	-	99	7	-
	Amortization of prior service credit			-	-	-2	-	-	-2
	Settlement			95	4	-	2	5	-3
		Net periodic benefit cost (income)	$	49	36	14	-1	37	23
	We recognize settlement losses for our Cash Balance Plan based on an assessment of whether our estimated lump sum payments related to the Cash Balance Plan will, in aggregate for the year, exceed the sum of its annual service and interest cost. Settlement losses of $27 million during third quarter 2013 and $95 million as of September 30, 2013 were recognized, representing the pro rata portion of the net loss remaining in cumulative other comprehensive income based on the percentage reduction in the Cash Balance Plan's projected benefit obligation. Recognizing settlement losses resulted in a re-measurement that decreased the Cash Balance Plan liability by $297 million and $1.1 billion for the quarter and nine months ended September 30, 2013, respectively, and with the impact of the settlement, increased other comprehensive income pre-tax by $324 million and $1.2 billion for the quarter and nine months ended September 30, 2013, respectively, and after-tax by $202 million and $726 million for the quarter and nine months ended September 30, 2013, respectively. The re-measurement was based on a discount rate of 4.75% at September 30, 2013.

Earnings_Per_Common_Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Common Share [Abstract]	'
Earnings Per Common Share	'
	Note 16: Earnings Per Common Share
	The table below shows earnings per common share and diluted earnings per common share and reconciles the numerator and denominator of both earnings per common share calculations. See Note 1 for discussion of private share repurchases and the Consolidated Statement of Changes in Equity.
						Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions, except per share amounts)						2013	2012	2013	2012
	Wells Fargo net income					$	5,578	4,937	16,268	13,807
	Less:		Preferred stock dividends and other (1)				261	220	748	665
	Wells Fargo net income applicable to common stock (numerator)					$	5,317	4,717	15,520	13,142
	Earnings per common share
	Average common shares outstanding (denominator)						5,295.30	5,288.10	5,293.00	5,292.70
	Per share					$	1	0.89	2.93	2.48
	Diluted earnings per common share
	Average common shares outstanding						5,295.30	5,288.10	5,293.00	5,292.70
	Add:		Stock options				34	28.7	32.6	28.3
			Restricted share rights				44.5	38.6	43.9	34.7
			Warrants				7.9	0.2	5.2	-
	Diluted average common shares outstanding (denominator)						5,381.70	5,355.60	5,374.70	5,355.70
	Per share					$	0.99	0.88	2.89	2.45
	Includes $261 million and $220 million of preferred stock dividends for third quarter 2013 and 2012, respectively, and $747 million and $659 million for the first nine months of 2013 and 2012, respectively.
	The following table presents the outstanding options and warrants to purchase shares of common stock that were anti-dilutive (the exercise price was higher than the weighted-average market price), and therefore not included in the calculation of diluted earnings per common share.
		Weighted-average shares
		Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)	2013		2012	2013		2012
	Options	10.2		53.5	11.3		57.2
	Warrants	-		-	-		39.2

Other_Comprehensive_Income

Other Comprehensive Income	9 Months Ended
	Sep. 30, 2013
Other Comprehensive Income [Abstract]	'
Other Comprehensive Income	'
	Note 17: Other Comprehensive Income
	The components of other comprehensive income (OCI), reclassifications to net income by income statement line item, and the related tax effects were:
									Quarter ended September 30,									Nine months ended September 30,
										2013					2012			2013			2012
										Before	Tax		Net of		Before	Tax	Net of	Before	Tax	Net of	Before	Tax	Net of
	(in millions)									tax	effect		tax		tax	effect	tax	tax	effect	tax	tax	effect	tax
	Securities available for sale:
		Net unrealized gains (losses)
			arising during the period						$	842	-199		643		2,892	-1,077	1,815	-5,922	2,331	-3,591	5,597	-2,097	3,500
		Reclassification of net (gains)
			losses to net income:
				Net (gains) losses on debt securities
					available for sale					6	-3		3		-3	1	-2	15	-6	9	65	-25	40
				Net gains from equity
					investments					-120	45		-75		-38	14	-24	-212	80	-132	-355	134	-221
						Subtotal reclassifications
							to net income			-114	42		-72		-41	15	-26	-197	74	-123	-290	109	-181
								Net change		728	-157		571		2,851	-1,062	1,789	-6,119	2,405	-3,714	5,307	-1,988	3,319
	Derivatives and hedging activities:
		Net unrealized gains (losses)
			arising during the period							-7	3		-4		24	-3	21	-10	4	-6	63	-19	44
		Reclassification of net (gains) losses
			on cash flow hedges to net income:
				Interest income on loans						-106	35		-71		-118	48	-70	-337	122	-215	-370	143	-227
				Interest expense on long-term debt						19	-7		12		24	-8	16	73	-27	46	70	-26	44
				Noninterest income						18	-7		11		-	-	-	35	-13	22	-	-	-
				Salaries expense						-	-		-		5	-2	3	4	-2	2	5	-2	3
						Subtotal reclassifications
							to net income			-69	21		-48		-89	38	-51	-225	80	-145	-295	115	-180
								Net change		-76	24		-52		-65	35	-30	-235	84	-151	-232	96	-136
	Defined benefit plans adjustments:
		Net actuarial gains (losses) arising
			during the period							297	-112		185		-1	-	-1	1,075	-405	670	-18	7	-11
		Reclassification of amounts to net
			periodic benefit costs (1):
				Amortization of net actuarial loss						33	-13		20		35	-13	22	124	-47	77	106	-40	66
				Settlements and other						26	-9		17		-	-	-	97	-36	61	5	-2	3
						Subtotal reclassifications to
							net periodic benefit costs			59	-22		37		35	-13	22	221	-83	138	111	-42	69
								Net change		356	-134		222		34	-13	21	1,296	-488	808	93	-35	58
	Foreign currency translation adjustments:
		Net unrealized gains (losses) arising
			during the period							12	2		14		45	-17	28	-27	-4	-31	-1	-	-1
		Reclassification of net (gains)
			losses to net income:
				Noninterest income						3	-		3		-	-	-	-12	5	-7	-10	4	-6
								Net change		15	2		17		45	-17	28	-39	1	-38	-11	4	-7
	Other comprehensive income (loss)								$	1,023	-265		758		2,865	-1,057	1,808	-5,097	2,002	-3,095	5,157	-1,923	3,234
	Less: Other comprehensive income
		from noncontrolling interests, net of tax											266				2			266			6
			Wells Fargo other comprehensive
				income (loss), net of tax								$	492				1,806			-3,361			3,228
	These items are included in the computation of net periodic benefit cost which is recorded in employee benefit expense (see Note 15 for additional details).
	Cumulative OCI balances were:
														Cumulative
								Derivatives		Defined		Foreign		other
						Securities		and		benefit		currency		compre-
						available		hedging		plans		translation		hensive
	(in millions)					for sale		activities		adjustments		adjustments		income
	Quarter ended September 30, 2013
	Balance, beginning of period				$	3,177		190		-1,595		25		1,797
		Net unrealized gains (losses)
			arising during the period			643		-4		185		14		838
	Amounts reclassified to net income				-72		-48		37		3		-80
	Net change				571		-52		222		17		758
	Less: Other comprehensive income from
			noncontrolling interests		265		-		-		1		266
Balance, end of period				$	3,483		138		-1,373		41		2,289
Quarter ended September 30, 2012
Balance, beginning of period				$	5,939		384		-1,749		55		4,629
	Net unrealized gains (losses) arising during the period				1,815		21		-1		28		1,863
	Amounts reclassified to net income				-26		-51		22		-		-55
	Net change				1,789		-30		21		28		1,808
	Less: Other comprehensive income (loss) from
			noncontrolling interests		3		-		-		-1		2
Balance, end of period				$	7,725		354		-1,728		84		6,435
Nine months ended September 30, 2013
Balance, beginning of period				$	7,462		289		-2,181		80		5,650
	Net unrealized gains (losses)
		arising during the period			-3,591		-6		670		-31		-2,958
	Amounts reclassified to net income				-123		-145		138		-7		-137
	Net change				-3,714		-151		808		-38		-3,095
	Less: Other comprehensive income from
			noncontrolling interests		265		-		-		1		266
Balance, end of period				$	3,483		138		-1,373		41		2,289
Nine months ended September 30, 2012
Balance, beginning of period				$	4,413		490		-1,786		90		3,207
	Net unrealized gains (losses) arising during the period				3,500		44		-11		-1		3,532
	Amounts reclassified to net income				-181		-180		69		-6		-298
	Net change				3,319		-136		58		-7		3,234
	Less: Other comprehensive income (loss) from
			noncontrolling interests		7		-		-		-1		6
Balance, end of period				$	7,725		354		-1,728		84		6,435

Operating_Segments

Operating Segments	9 Months Ended
	Sep. 30, 2013
Operating Segments [Abstract]	'
Operating Segments	'
	Note 18: Operating Segments
	We have three operating segments for management reporting: Community Banking; Wholesale Banking; and Wealth, Brokerage and Retirement. The results for these operating segments are based on our management accounting process, for which there is no comprehensive, authoritative guidance equivalent to GAAP for financial accounting. The management accounting process measures the performance of the operating segments based on our management structure and is not necessarily comparable with similar information for other financial services companies. We define our operating segments by product type and customer segment. If the management structure and/or the allocation process changes, allocations, transfers and assignments may change.
	Community Banking offers a complete line of diversified financial products and services to consumers and small businesses with annual sales generally up to $20 million in which the owner generally is the financial decision maker. Community Banking also offers investment management and other services to retail customers and securities brokerage through affiliates. These products and services include the Wells Fargo Advantage FundsSM, a family of mutual funds. Loan products include lines of credit, auto floor plan lines, equity lines and loans, equipment and transportation loans, education loans, origination and purchase of residential mortgage loans and servicing of mortgage loans and credit cards. Other credit products and financial services available to small businesses and their owners include equipment leases, real estate and other commercial financing, Small Business Administration financing, venture capital financing, cash management, payroll services, retirement plans, Health Savings Accounts, credit cards, and merchant payment processing. Community Banking also offers private label financing solutions for retail merchants across the United States and purchases retail installment contracts from auto dealers in the United States and Puerto Rico. Consumer and business deposit products include checking accounts, savings deposits, market rate accounts, Individual Retirement Accounts, time deposits, global remittance and debit cards.
	Community Banking serves customers through a complete range of channels, including traditional banking stores, in-store banking centers, business centers, ATMs, Online and Mobile Banking, and Wells Fargo Customer Connection, a 24-hours a day, seven days a week telephone service.
	Wholesale Banking provides financial solutions to businesses across the United States with annual sales generally in excess of $20 million and to financial institutions globally. Wholesale Banking provides a complete line of commercial, corporate, capital markets, cash management and real estate banking products and services. These include traditional commercial loans and lines of credit, letters of credit, asset-based lending, equipment leasing, international trade facilities, trade financing, collection services, foreign exchange services, treasury management, investment management, institutional fixed-income sales, interest rate, commodity and equity risk management, online/electronic products such as the Commercial Electronic Office® (CEO®) portal, insurance, corporate trust fiduciary and agency services, and investment banking services. Wholesale Banking manages customer investments through institutional separate accounts and mutual funds, including the Wells Fargo Advantage Funds and Wells Capital Management. Wholesale Banking also supports the CRE market with products and services such as construction loans for commercial and residential development, land acquisition and development loans, secured and unsecured lines of credit, interim financing arrangements for completed structures, rehabilitation loans, affordable housing loans and letters of credit, permanent loans for securitization, CRE loan servicing and real estate and mortgage brokerage services.
	Wealth, Brokerage and Retirement provides a full range of financial advisory services to clients using a planning approach to meet each client's financial needs. Wealth Management provides affluent and high net worth clients with a complete range of wealth management solutions, including financial planning, private banking, credit, investment management and fiduciary services. Abbot Downing, a Wells Fargo business, provides comprehensive wealth management services to ultra high net worth families and individuals as well as endowments and foundations. Brokerage serves customers' advisory, brokerage and other financial needs as part of one of the largest full-service brokerage firms in the United States. Retirement is a national leader in providing institutional retirement and trust services (including 401(k) and pension plan recordkeeping) for businesses, retail retirement solutions for individuals and reinsurance services for the life insurance industry.
	Other includes corporate items not specific to a business segment and elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for wealth management customers provided in Community Banking stores.
								Wealth,
								Brokerage
				Community		Wholesale			and			Consolidated
	(income/expense in millions,			Banking		Banking		Retirement		Other (1)		Company
	average balances in billions)			2013	2012	2013	2012	2013	2012	2013	2012	2013	2012
	Quarter ended September 30,
	Net interest income (2)		$	7,244	7,247	3,059	3,028	749	680	-304	-293	10,748	10,662
	Provision (reversal of provision)
		for credit losses		240	1,627	-144	-57	-38	30	17	-9	75	1,591
	Noninterest income			5,000	5,863	2,812	2,921	2,558	2,353	-640	-586	9,730	10,551
	Noninterest expense			7,060	7,402	3,084	2,908	2,619	2,457	-661	-655	12,102	12,112
	Income (loss) before income
		tax expense (benefit)		4,944	4,081	2,931	3,098	726	546	-300	-215	8,301	7,510
	Income tax expense (benefit)			1,505	1,250	952	1,103	275	208	-114	-81	2,618	2,480
	Net income (loss) before
		noncontrolling interests		3,439	2,831	1,979	1,995	451	338	-186	-134	5,683	5,030
	Less: Net income from
		noncontrolling interests		98	91	6	2	1	-	-	-	105	93
	Net income (loss) (3)		$	3,341	2,740	1,973	1,993	450	338	-186	-134	5,578	4,937
	Average loans		$	497.7	485.3	290.4	277.1	46.7	42.5	-30	-28.2	804.8	776.7
	Average assets			836.6	765.1	500.7	490.7	180.8	163.8	-68.5	-65.3	1,449.60	1,354.30
	Average core deposits			618.2	594.5	235.3	225.4	150.6	136.7	-63.8	-61.2	940.3	895.4
	Nine months ended September 30,
	Net interest income (2)		$	21,614	21,879	9,165	9,556	2,118	2,079	-900	-927	31,997	32,587
	Provision (reversal of provision)
		for credit losses		2,265	5,078	-320	226	-5	110	6	-28	1,946	5,386
	Noninterest income			16,471	17,744	8,927	8,543	7,647	6,987	-1,927	-1,723	31,118	31,551
	Noninterest expense			21,650	22,807	9,358	9,075	7,800	7,380	-2,051	-1,760	36,757	37,502
	Income (loss) before income
		tax expense (benefit)		14,170	11,738	9,054	8,798	1,970	1,576	-782	-862	24,412	21,250
	Income tax expense (benefit)			4,426	3,856	3,024	3,051	748	599	-297	-327	7,901	7,179
	Net income (loss) before
		noncontrolling interests		9,744	7,882	6,030	5,747	1,222	977	-485	-535	16,511	14,071
	Less: Net income from
		noncontrolling interests		234	259	8	5	1	-	-	-	243	264
	Net income (loss) (3)		$	9,510	7,623	6,022	5,742	1,221	977	-485	-535	16,268	13,807
	Average loans		$	498.3	485.1	287.3	272	45.3	42.5	-29.8	-28.4	801.1	771.2
	Average assets			819.2	750.1	498.9	479	179.4	162.2	-69.7	-64.9	1,427.80	1,326.40
	Average core deposits			620.1	585.3	230	222.4	148.8	135.5	-64.8	-61	934.1	882.2
	Includes corporate items not specific to a business segment and the elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for wealth management customers provided in Community Banking stores.
	Net interest income is the difference between interest earned on assets and the cost of liabilities to fund those assets. Interest earned includes actual interest earned on segment assets and, if the segment has excess liabilities, interest credits for providing funding to other segments. The cost of liabilities includes interest expense on segment liabilities and, if the segment does not have enough liabilities to fund its assets, a funding charge based on the cost of excess liabilities from another segment.
	Represents segment net income (loss) for Community Banking; Wholesale Banking; and Wealth, Brokerage and Retirement segments and Wells Fargo net income for the consolidated company.

Regulatory_and_Agency_Capital_

Regulatory and Agency Capital Requirements	9 Months Ended
	Sep. 30, 2013
Regulatory and Agency Capital Requirements [Abstract]	'
Regulatory and Agency Capital Requirements	'
	Note 19: Regulatory and Agency Capital Requirements
	The Company and each of its subsidiary banks are subject to regulatory capital adequacy requirements promulgated by federal regulatory agencies. The Federal Reserve establishes capital requirements, including well capitalized standards, for the consolidated financial holding company, and the OCC has similar requirements for the Company's national banks, including Wells Fargo Bank, N.A. (the Bank).
	We do not consolidate our wholly-owned trust (the Trust) formed solely to issue trust preferred and preferred purchase securities (the Securities). Securities issued by the Trust includable in Tier 1 capital were $2.1 billion at September 30, 2013. Since December 31, 2012, we have redeemed $2.8 billion of trust preferred securities. Under applicable regulatory capital guidelines issued by bank regulatory agencies, upon notice of redemption, the redeemed trust preferred securities no longer qualify as Tier 1 Capital for the Company. This redemption is consistent with the Capital Plan the Company submitted to the Federal Reserve Board and the actions the Company previously announced on March 13, 2012.
	Effective January 1, 2013, the Company implemented changes to the market risk capital rule, commonly referred to as Basel 2.5, as required by U.S. banking regulators. Basel 2.5 requires banking organizations with significant trading activities to adjust their capital requirements to better account for the market risks of those activities. The market risk capital rule is reflected in the Company's calculation of risk-weighted assets and upon initial adoption in first quarter 2013, negatively impacted capital ratios under Basel I by approximately 25 basis points, but did not impact our ratio under Basel III, as its impact has historically been included in our calculations.
	The Bank is an approved seller/servicer, and is required to maintain minimum levels of shareholders' equity, as specified by various agencies, including the United States Department of Housing and Urban Development, GNMA, FHLMC and FNMA. At September 30, 2013, the Bank met these requirements. Other subsidiaries, including the Company's insurance and broker-dealer subsidiaries, are also subject to various minimum capital levels, as defined by applicable industry regulations.  The minimum capital levels for these subsidiaries, and related restrictions, are not significant to our consolidated operations.
	The following table presents regulatory capital information for Wells Fargo & Company and Wells Fargo Bank, N.A.
			Wells Fargo & Company			Wells Fargo Bank, N.A.		Well-	Minimum
			Sept. 30,		Dec. 31,	Sept. 30,	Dec. 31,	capitalized	capital
	(in billions, except ratios)		2013		2012	2013	2012	ratios (1)	ratios (1)
	Regulatory capital:
	Tier 1	$	137.5		126.6	110.2	101.3
	Total		171.3		157.6	137.3	124.8
	Assets:
	Risk-weighted	$	1,135.10		1,077.10	1,046.30	1,002.00
	Adjusted average (2)		1,408.50		1,336.40	1,262.80	1,195.90
	Capital ratios:
	Tier 1 capital		12.11	%	11.75	10.53	10.11	6	4
	Total capital		15.09		14.63	13.12	12.45	10	8
	Tier 1 leverage (2)		9.76		9.47	8.72	8.47	5	4
	As defined by the regulations issued by the Federal Reserve, OCC and FDIC.
	The leverage ratio consists of Tier 1 capital divided by quarterly average total assets, excluding goodwill and certain other items. The minimum leverage ratio guideline is 3% for banking organizations that do not anticipate significant growth and that have well-diversified risk, excellent asset quality, high liquidity, good earnings, effective management and monitoring of market risk and, in general, are considered top-rated, strong banking organizations.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Significant Accounting Policies [Line Items]	'
Nature of Operations	'
	Wells Fargo & Company is a diversified financial services company. We provide banking, insurance, trust and investments, mortgage banking, investment banking, retail banking, brokerage, and consumer and commercial finance through banking stores, the internet and other distribution channels to consumers, businesses and institutions in all 50 states, the District of Columbia, and in foreign countries. When we refer to “Wells Fargo,” “the Company,” “we,” “our” or “us,” we mean Wells Fargo & Company and Subsidiaries (consolidated). Wells Fargo & Company (the Parent) is a financial holding company and a bank holding company. We also hold a majority interest in a real estate investment trust, which has publicly traded preferred stock outstanding.
Use of Estimates	'
	Our accounting and reporting policies conform with U.S. generally accepted accounting principles (GAAP) and practices in the financial services industry. For discussion of our significant accounting policies, see Note 1 in our Annual Report on Form 10-K for the year ended December 31, 2012 (2012 Form 10-K). There were no material changes to these policies in the first nine months of 2013. To prepare the financial statements in conformity with GAAP, management must make estimates based on assumptions about future economic and market conditions (for example, unemployment, market liquidity, real estate prices, etc.) that affect the reported amounts of assets and liabilities at the date of the financial statements and income and expenses during the reporting period and the related disclosures. Although our estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition. Management has made significant estimates in several areas, including allowance for credit losses and purchased credit-impaired (PCI) loans (Note 5), valuations of residential mortgage servicing rights (MSRs) (Notes 7 and 8) and financial instruments (Note 13), liability for mortgage loan repurchase losses (Note 8) and income taxes. Actual results could differ from those estimates.
Comparability of Prior Year Financial Data	'
	These unaudited interim financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the periods presented. These adjustments are of a normal recurring nature, unless otherwise disclosed in this Form 10-Q. The results of operations in the interim financial statements do not necessarily indicate the results that may be expected for the full year. The interim financial information should be read in conjunction with our 2012 Form 10-K.
Accounting Standards Adopted in 2013	'
	Accounting Standards Adopted in 2013
	In first quarter 2013, we adopted the following new accounting guidance:
	Accounting Standards Update (ASU or Update) 2011-11, Disclosures about Offsetting Assets and Liabilities;
	ASU 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities; and
	ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.
	In third quarter 2013, we adopted the following new accounting guidance:
	ASU 2013-10, Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes
Private Share Repurchases	'
	Private Share Repurchases
	From time to time we enter into private forward repurchase transactions with unrelated third parties to complement our open-market common stock repurchase strategies, to allow us to manage our share repurchases in a manner consistent with our capital plans, currently submitted under the 2013 Comprehensive Capital Analysis and Review (CCAR), and to provide an economic benefit to the Company.
	Our payments to the counterparties for these contracts are recorded in permanent equity in the quarter paid and are not subject to re-measurement. The classification of the up-front payments as permanent equity assures that we have appropriate repurchase timing consistent with our 2013 capital plan, which contemplated a fixed dollar amount available per quarter for share repurchases pursuant to Federal Reserve Board (FRB) supervisory guidance. In return, the counterparty agrees to deliver a variable number of shares based on a per share discount to the volume-weighted average stock price over the contract period. There are no scenarios where the contracts would not either physically settle in shares or allow us to choose the settlement method.
	In September 2013 we entered into a private forward repurchase contract and paid $400 million to an unrelated third party. In return, the counterparty agreed to deliver a variable number of shares based on a per share discount to the volume-weighted average stock price over the contract period. This contract expires in fourth quarter 2013. The amount we paid to the counterparty meets accounting requirements to be treated as a permanent equity reduction.
Subsequent Events	'
	Subsequent Events We have evaluated the effects of events that have occurred subsequent to period end September 30, 2013, and there have been no material events that would require recognition in our third quarter 2013 consolidated financial statements or disclosure in the Notes to the financial statements.
ASU 2011-11, Disclosure about Offsetting Assets and Liabilities [Member]	'
Significant Accounting Policies [Line Items]	'
Accounting Standards Adopted in 2013	'
	ASU 2011-11 expands the disclosure requirements for certain financial instruments and derivatives that are subject to enforceable master netting agreements or similar arrangements. The disclosures are required regardless of whether the instruments have been offset (or netted) in the statement of financial position. Under ASU 2011-11, companies must describe the nature of offsetting arrangements and provide quantitative information about those agreements, including the gross and net amounts of financial instruments that are recognized in the statement of financial position.
	We adopted this guidance in first quarter 2013 with retrospective application. These Updates did not affect our consolidated financial results since they amend only the disclosure requirements for offsetting financial instruments. See Notes 10 and 12 for the new disclosures.
ASU 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities [Member]	'
Significant Accounting Policies [Line Items]	'
Accounting Standards Adopted in 2013	'
	In January 2013, the FASB issued ASU 2013-01, which clarifies the scope of ASU 2011-11 by limiting the disclosures to derivatives, repurchase agreements, and securities lending transactions to the extent they are subject to an enforceable master netting or similar arrangement. We adopted this guidance in first quarter 2013 with retrospective application. These Updates did not affect our consolidated financial results since they amend only the disclosure requirements for offsetting financial instruments. See Notes 10 and 12 for the new disclosures.
ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income [Member]	'
Significant Accounting Policies [Line Items]	'
Accounting Standards Adopted in 2013	'
	ASU 2013-02 requires companies to disclose the effect on net income line items from significant amounts reclassified out of accumulated other comprehensive income and entirely into net income. If reclassifications are partially or entirely capitalized on the balance sheet, then companies must provide a cross-reference to disclosures that provide information about the effect of the reclassifications. We adopted this guidance in first quarter 2013 with retrospective application. This Update did not affect our consolidated financial results as it amends only the disclosure requirements for accumulated other comprehensive income. See Note 17 for expanded disclosures on reclassification adjustments.
ASU 2013-10, Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes [Member]	'
Significant Accounting Policies [Line Items]	'
Accounting Standards Adopted in 2013	'
	ASU 2013-10 permits the Fed Funds Effective Swap Rate (Overnight Index Swap Rate) to be used as a U.S. benchmark interest rate for hedge accounting purposes, in addition to LIBOR and U.S. Treasury. The Update also removes the restriction on using different benchmark rates for similar hedges. Our adoption of this guidance in third quarter 2013 with prospective application did not affect our consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2013
Summary of Significant Accounting Policies [Abstract]	'
Supplemental Cash Flow Information	'
		Nine months
		ended September 30,
	(in millions)		2013	2012
	Transfers from loans to securities available for sale	$	297	921
	Trading assets retained from securitization of MHFS		39,963	68,905
	Capitalization of MSRs from sale of MHFS		3,068	3,860
	Transfers from MHFS to foreclosed assets		160	172
	Transfers from loans to MHFS		6,199	5,523
	Transfers from loans to LHFS		207	118
	Transfers from loans to foreclosed assets (1)		5,835	6,938
	Changes in consolidations (deconsolidations) of variable interest entities:
	Trading assets		1,950	-
	Securities available for sale		-	-40
	Loans		-2,268	-295
	Long-term debt		-342	-338
	Includes $4.5 billion and $4.8 billion in transfers of government insured/guaranteed loans for the nine months ended September 30, 2013 and 2012, respectively.

Federal_Funds_Sold_Securities_1

Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments (Tables)	9 Months Ended
	Sep. 30, 2013
Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Abstract]	'
Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments	'
				Sept. 30,	Dec. 31,
	(in millions)			2013	2012
	Federal funds sold and securities
		purchased under resale agreements	$	27,093	33,884
	Interest-earning deposits			153,464	102,408
	Other short-term investments			1,479	1,021
		Total	$	182,036	137,313

Securities_Available_for_Sale_

Securities Available for Sale (Tables)	9 Months Ended
	Sep. 30, 2013
Securities Available for Sale (Tables) [Abstract]	'
Securities Available For Sale Major Categories	'
										Gross	Gross
										unrealized	unrealized	Fair
	(in millions)								Cost	gains	losses	value
	30-Sep-13
	Securities of U.S. Treasury and federal agencies							$	6,647	19	-260	6,406
	Securities of U.S. states and political subdivisions								42,172	1,013	-892	42,293
	Mortgage-backed securities:
		Federal agencies							118,793	2,421	-2,251	118,963
		Residential							12,116	1,450	-42	13,524
		Commercial							17,704	1,253	-152	18,805
			Total mortgage-backed securities						148,613	5,124	-2,445	151,292
	Corporate debt securities								20,372	975	-149	21,198
	Collateralized loan and other debt obligations (1)								17,261	602	-87	17,776
	Other (2)								16,428	461	-35	16,854
				Total debt securities					251,493	8,194	-3,868	255,819
	Marketable equity securities:
		Perpetual preferred securities							1,730	239	-71	1,898
		Other marketable equity securities							383	1,306	-7	1,682
				Total marketable equity securities					2,113	1,545	-78	3,580
					Total			$	253,606	9,739	-3,946	259,399
	31-Dec-12
	Securities of U.S. Treasury and federal agencies							$	7,099	47	-	7,146
	Securities of U.S. states and political subdivisions								37,120	2,000	-444	38,676
	Mortgage-backed securities:
		Federal agencies							92,855	4,434	-4	97,285
		Residential							14,178	1,802	-49	15,931
		Commercial							18,438	1,798	-268	19,968
			Total mortgage-backed securities						125,471	8,034	-321	133,184
	Corporate debt securities								20,120	1,282	-69	21,333
	Collateralized loan and other debt obligations (1)								12,726	557	-95	13,188
	Other (2)								18,410	553	-76	18,887
				Total debt securities					220,946	12,473	-1,005	232,414
	Marketable equity securities:
		Perpetual preferred securities							1,935	281	-40	2,176
		Other marketable equity securities							402	216	-9	609
				Total marketable equity securities					2,337	497	-49	2,785
					Total			$	223,283	12,970	-1,054	235,199
	Includes collateralized debt obligations with a cost basis and fair value of $533 million and $700 million, respectively, at September 30, 2013, and $556 million and $644 million, respectively, at December 31, 2012.
	Included in the “Other” category are asset-backed securities collateralized by auto leases or loans and cash reserves with a cost basis and fair value of $5.1 billion and $5.2 billion, respectively, at September 30, 2013, and $5.9 billion each at December 31, 2012. Also included in the "Other" category are asset-backed securities collateralized by home equity loans with a cost basis and fair value of $594 million and $831 million, respectively, at September 30, 2013, and $695 million and $918 million, respectively, at December 31, 2012. The remaining balances primarily include asset-backed securities collateralized by credit cards.
Securities Available For Sale Gross Unrealized Losses Over And Under 12 Months	'
								Less than 12 months			12 months or more			Total
								Gross			Gross			Gross
							unrealized		Fair	unrealized		Fair	unrealized		Fair
	(in millions)							losses	value		losses	value		losses	value
	30-Sep-13
	Securities of U.S. Treasury and federal agencies						$	-260	5,862		-	-		-260	5,862
	Securities of U.S. states and political subdivisions							-528	10,893		-364	3,889		-892	14,782
	Mortgage-backed securities:
		Federal agencies						-2,245	52,043		-6	514		-2,251	52,557
		Residential						-19	1,263		-23	249		-42	1,512
		Commercial						-31	2,838		-121	1,898		-152	4,736
			Total mortgage-backed securities					-2,295	56,144		-150	2,661		-2,445	58,805
	Corporate debt securities							-100	2,854		-49	252		-149	3,106
	Collateralized loan and other debt obligations							-46	5,653		-41	356		-87	6,009
	Other							-19	3,007		-16	225		-35	3,232
				Total debt securities				-3,248	84,413		-620	7,383		-3,868	91,796
	Marketable equity securities:
		Perpetual preferred securities						-37	441		-34	306		-71	747
		Other marketable equity securities						-7	47		-	-		-7	47
				Total marketable equity securities				-44	488		-34	306		-78	794
					Total		$	-3,292	84,901		-654	7,689		-3,946	92,590
	31-Dec-12
	Securities of U.S. Treasury and federal agencies						$	-	-		-	-		-	-
	Securities of U.S. states and political subdivisions							-55	2,709		-389	4,662		-444	7,371
	Mortgage-backed securities:
		Federal agencies						-4	2,247		-	-		-4	2,247
		Residential						-4	261		-45	1,564		-49	1,825
		Commercial						-6	491		-262	2,564		-268	3,055
			Total mortgage-backed securities					-14	2,999		-307	4,128		-321	7,127
	Corporate debt securities							-14	1,217		-55	305		-69	1,522
	Collateralized loan and other debt obligations							-2	1,485		-93	798		-95	2,283
	Other							-11	2,153		-65	1,010		-76	3,163
				Total debt securities				-96	10,563		-909	10,903		-1,005	21,466
	Marketable equity securities:
		Perpetual preferred securities						-3	116		-37	538		-40	654
		Other marketable equity securities						-9	48		-	-		-9	48
				Total marketable equity securities				-12	164		-37	538		-49	702
					Total		$	-108	10,727		-946	11,441		-1,054	22,168
Securities Available For Sale Gross Unrealized Losses By Investment Grade	'
									Investment grade			Non-investment grade
									Gross			Gross
									unrealized	Fair		unrealized	Fair
	(in millions)								losses	value		losses	value
	30-Sep-13
	Securities of U.S. Treasury and federal agencies							$	-260	5,862		-	-
	Securities of U.S. states and political subdivisions								-840	14,278		-52	504
	Mortgage-backed securities:
		Federal agencies							-2,251	52,557		-	-
		Residential							-2	201		-40	1,311
		Commercial							-58	3,909		-94	827
			Total mortgage-backed securities						-2,311	56,667		-134	2,138
	Corporate debt securities								-89	2,184		-60	922
	Collateralized loan and other debt obligations								-64	5,809		-23	200
	Other								-22	3,050		-13	182
				Total debt securities					-3,586	87,850		-282	3,946
	Perpetual preferred securities								-71	747		-	-
					Total			$	-3,657	88,597		-282	3,946
	31-Dec-12
	Securities of U.S. Treasury and federal agencies							$	-	-		-	-
	Securities of U.S. states and political subdivisions								-378	6,839		-66	532
	Mortgage-backed securities:
		Federal agencies							-4	2,247		-	-
		Residential							-3	78		-46	1,747
		Commercial							-31	2,110		-237	945
			Total mortgage-backed securities						-38	4,435		-283	2,692
	Corporate debt securities								-19	1,112		-50	410
	Collateralized loan and other debt obligations								-49	2,065		-46	218
	Other								-49	3,034		-27	129
				Total debt securities					-533	17,485		-472	3,981
	Perpetual preferred securities								-40	654		-	-
					Total			$	-573	18,139		-472	3,981
Debt Securities Available For Sale Contractual Maturities	'
													Remaining contractual maturity
									Weighted-							After one year				After five years
								Total	average			Within one year				through five years				through ten years					After ten years
	(in millions)							amount		yield			Amount	Yield			Amount	Yield			Amount	Yield			Amount	Yield
	30-Sep-13
	Securities of U.S. Treasury
		and federal agencies					$	6,406		1.67	%	$	134	1.25	%	$	700	1.42	%	$	5,572	1.71	%	$	-	-	%
	Securities of U.S. states and
		political subdivisions						42,293		5.23			4,844	1.84			8,461	2.2			3,177	5.32			25,811	6.85
	Mortgage-backed securities:
		Federal agencies						118,963		3.37			-	-			435	2.71			553	4.84			117,975	3.37
		Residential						13,524		4.24			-	-			-	-			452	1.92			13,072	4.32
		Commercial						18,805		5.36			-	-			52	3.33			100	2.77			18,653	5.38
			Total mortgage-backed
				securities				151,292		3.7			-	-			487	2.78			1,105	3.46			149,700	3.7
	Corporate debt securities							21,198		4.21			4,944	2.39			8,547	3.77			6,371	5.86			1,336	5.78
	Collateralized loan and
		other debt obligations						17,776		1.53			40	0.25			915	0.67			7,185	1.14			9,636	1.9
	Other							16,854		1.74			1,693	1.5			8,097	1.77			2,544	1.75			4,520	1.78
				Total debt securities
					at fair value		$	255,819		3.66	%	$	11,655	2.01	%	$	27,207	2.51	%	$	25,954	3.09	%	$	191,003	4.01	%
	31-Dec-12
	Securities of U.S. Treasury
		and federal agencies					$	7,146		1.59	%	$	376	0.43	%	$	661	1.24	%	$	6,109	1.7	%	$	-	-	%
	Securities of U.S. states and
		political subdivisions						38,676		5.29			1,861	2.61			11,620	2.18			3,380	5.51			21,815	7.15
	Mortgage-backed securities:
		Federal agencies						97,285		3.82			1	5.4			106	4.87			1,144	3.41			96,034	3.83
		Residential						15,931		4.38			-	-			-	-			569	2.06			15,362	4.47
		Commercial						19,968		5.33			-	-			78	3.69			101	2.84			19,789	5.35
			Total mortgage-backed
				securities				133,184		4.12			1	5.4			184	4.37			1,814	2.95			131,185	4.13
	Corporate debt securities							21,333		4.26			1,037	4.29			12,792	3.19			6,099	6.14			1,405	5.88
	Collateralized loan and
		other debt obligations						13,188		1.35			44	0.96			1,246	0.71			7,376	1.01			4,522	2.08
	Other							18,887		1.85			1,715	1.14			9,589	1.75			3,274	2.11			4,309	2.14
				Total debt securities
					at fair value		$	232,414		3.91	%	$	5,034	2.28	%	$	36,092	2.37	%	$	28,052	3.07	%	$	163,236	4.44	%
Securities Available For Sale Realized Gains And Losses	'
							Quarter			Nine months
						ended Sept. 30,				ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Gross realized gains					$	161	110		371	527
	Gross realized losses						-8	-29		-21	-65
	OTTI write-downs						-39	-39		-153	-172
		Net realized gains from securities available for sale					114	42		197	290
	Net realized gains from nonmarketable equity investments						382	125		606	415
			Net realized gains from debt securities and equity investments			$	496	167		803	705
Securities Available For Sale And Nonmarketable Equity Securities Other Than Temporary Impairment	'
									Quarter			Nine months
									ended Sept. 30,			ended Sept. 30,
	(in millions)								2013	2012		2013	2012
	OTTI write-downs included in earnings
		Debt securities:
			U.S. states and political subdivisions					$	-	-		-	9
			Mortgage-backed securities:
				Federal agencies					-	-		1	-
				Residential					16	17		53	65
				Commercial					6	8		47	41
			Corporate debt securities						-	5		2	9
			Collateralized loan and other debt obligations						-	-		-	1
			Other debt securities						1	6		25	38
					Total debt securities				23	36		128	163
		Equity securities:
			Marketable equity securities:
				Perpetual preferred securities					-	2		-	8
				Other marketable equity securities					16	1		25	1
					Total marketable equity securities				16	3		25	9
						Total securities available for sale			39	39		153	172
			Nonmarketable equity investments						21	33		96	85
							Total OTTI write-downs included in earnings	$	60	72		249	257
Debt Securities Available For Sale Other Than Temporary Impairment	'
							Quarter ended Sept. 30,				Nine months ended Sept. 30,
	(in millions)							2013	2012		2013	2012
	OTTI on debt securities
		Recorded as part of gross realized losses:
			Credit-related OTTI				$	23	36		79	160
			Intent-to-sell OTTI					-	-		49	3
				Total recorded as part of gross realized losses				23	36		128	163
		Changes to OCI for increase (decrease) in non-credit related OTTI (1):
			U.S. states and political subdivisions					-	-		-	-7
			Residential mortgage-backed securities					-2	-85		-18	-148
			Commercial mortgage-backed securities					-33	-56		-74	-62
			Corporate debt securities					-	6		-	5
			Collateralized loan and other debt obligations					-	-1		-1	-
			Other debt securities					-1	-1		1	30
				Total changes to OCI for non-credit-related OTTI				-36	-137		-92	-182
					Total OTTI losses (gains) recorded on debt securities		$	-13	-101		36	-19
	Represents amounts recorded to OCI for impairment, due to factors other than credit, on debt securities that have also had credit-related OTTI write-downs during the period. Increases represent initial or subsequent non-credit-related OTTI on debt securities. Decreases represent partial to full reversal of impairment due to recoveries in the fair value of securities due to factors other than credit.
Credit Loss Component Of Credit-Impaired Debt Securities	'
							Quarter ended Sept. 30,				Nine months ended Sept. 30,
	(in millions)							2013	2012		2013	2012
	Credit loss component, beginning of period						$	1,218	1,314		1,289	1,272
	Additions:
		Initial credit impairments						6	14		11	50
		Subsequent credit impairments						17	22		68	110
			Total additions					23	36		79	160
	Reductions:
		For securities sold or matured						-30	-100		-141	-170
		For recoveries of previous credit impairments (1)						-7	-5		-23	-17
			Total reductions					-37	-105		-164	-187
	Credit loss component, end of period						$	1,204	1,245		1,204	1,245
	Recoveries of previous credit impairments result from increases in expected cash flows subsequent to credit loss recognition. Such recoveries are reflected prospectively as interest yield adjustments using the effective interest method.
Credit Loss Component Of Residential Mortgage Backed Securities Inputs To Measure	'
							Quarter ended Sept. 30,					Nine months ended Sept. 30,
	($ in millions)							2013		2012		2013	2012
	Credit impairment losses on residential MBS
		Non-investment grade					$	16		17		53	65
	Significant inputs (non-agency – non-investment grade MBS)
	Expected remaining life of loan loss rate (1):
		Range (2)						14-Jan	%	Mar-36		20-Jan	Jan-44
		Credit impairment loss rate distribution (3):
			0 - 10% range					78		95		91	71
			10 - 20% range					22		5		8	13
			20 - 30% range					-		-		1	6
			Greater than 30%					-		-		-	10
		Weighted average loss rate (4)						5		7		6	9
	Current subordination levels (5):
		Range (2)						0-3		0-9		0-41	0-57
		Weighted average (4)						-		3		-	2
	Prepayment speed (annual CPR (6)):
		Range (2)						18-Jun		23-Sep		20-Apr	29-May
		Weighted average (4)						16		16		16	15
	Represents future expected credit losses on each pool of loans underlying respective securities expressed as a percentage of the total current outstanding loan balance of the pool for each respective security.
	Represents the range of inputs/assumptions based upon the individual securities within each category.
	Represents distribution of credit impairment losses recognized in earnings categorized based on range of expected remaining life of loan losses. For example 78% of credit impairment losses recognized in earnings for the quarter ended September 30, 2013, had expected remaining life of loan loss assumptions of 0 to 10%.
	Calculated by weighting the relevant input/assumption for each individual security by current outstanding amortized cost basis of the security.
	Represents current level of credit protection provided by tranches subordinate to our security holdings (subordination), expressed as a percentage of total current underlying loan balance.
	Constant prepayment rate.

Loans_and_Allowance_for_Credit1

Loans and Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2013
Loans And Allowance For Credit Losses Tables [Abstract]	'
Loans and Allowance for Credit Losses, Loans Outstanding	'
								Sept. 30,		Dec. 31,
	(in millions)							2013		2012
	Commercial:
		Commercial and industrial					$	191,738		187,759
		Real estate mortgage						105,540		106,340
		Real estate construction						16,413		16,904
		Lease financing						11,688		12,424
		Foreign (1)						46,666		37,771
			Total commercial					372,045		361,198
	Consumer:
		Real estate 1-4 family first mortgage						254,924		249,900
		Real estate 1-4 family junior lien mortgage						67,675		75,465
		Credit card						25,448		24,640
		Automobile						49,693		45,998
		Other revolving credit and installment						42,540		42,373
			Total consumer					440,280		438,376
				Total loans			$	812,325		799,574
	Substantially all of our foreign loan portfolio is commercial loans. Loans are classified as foreign if the borrower's primary address is outside of the United States.
Loans and Allowance for Credit Losses, Significant Activity	'
							2013					2012
	(in millions)						Commercial		Consumer	Total		Commercial	Consumer	Total
	Quarter ended September 30,
	Loans - held for investment:
		Purchases (1)					$	6,226	-	6,226		1,021	-	1,021
		Sales						-1,177	-24	-1,201		-796	-164	-960
	Transfers to MHFS/LHFS (1)							-65	-3	-68		-41	-5	-46
	Nine months ended September 30,
	Loans - held for investment:
		Purchases (1)					$	9,374	581	9,955		10,196	167	10,363
		Sales						-4,989	-470	-5,459		-3,731	-487	-4,218
	Transfers to MHFS/LHFS (1)							-198	-15	-213		-59	-10	-69
	The “Purchases” and “Transfers to MHFS/LHFS" categories exclude activity in government insured/guaranteed loans. As servicer, we are able to buy delinquent insured/guaranteed loans out of the Government National Mortgage Association (GNMA) pools. These loans have different risk characteristics from the rest of our consumer portfolio, whereby this activity does not impact the allowance for loan losses in the same manner because the loans are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). On a net basis, such purchases net of transfers to MHFS were $2.4 billion and $1.5 billion for the third quarter 2013 and 2012, respectively, and $5.2 billion and $7.0 billion for the first nine months ended of 2013 and 2012, respectively.
Loans and Allowance for Credit Losses, Commitments to Lend	'
							Sept. 30,		Dec. 31,
	(in millions)							2013	2012
	Commercial:
		Commercial and industrial					$	231,576	215,626
		Real estate mortgage						5,913	6,165
		Real estate construction						10,180	9,109
		Foreign						13,660	8,423
			Total commercial					261,329	239,323
	Consumer:
		Real estate 1-4 family first mortgage						33,845	42,657
		Real estate 1-4 family
			junior lien mortgage					48,145	50,934
		Credit card						77,187	70,960
		Other revolving credit and installment						23,165	19,791
			Total consumer					182,343	184,342
				Total unfunded
					credit commitments		$	443,672	423,665
Loans and Allowance for Credit Losses, Allowance for Credit Losses	'
								Quarter ended Sept. 30,				Nine months ended Sept. 30,
	(in millions)							2013		2012		2013		2012
	Balance, beginning of period						$	16,618		18,646		17,477		19,668
	Provision for credit losses							75		1,591		1,946		5,386
	Interest income on certain impaired loans (1)							-63		-76		-209		-245
	Loan charge-offs:
		Commercial:
			Commercial and industrial					-151		-285		-516		-1,004
			Real estate mortgage					-44		-100		-153		-296
			Real estate construction					-6		-41		-18		-181
			Lease financing					-3		-5		-30		-18
			Foreign					-4		-35		-23		-81
				Total commercial				-208		-466		-740		-1,580
		Consumer:
			Real estate 1-4 family first mortgage					-303		-719		-1,170		-2,319
			Real estate 1-4 family junior lien mortgage					-345		-1,095		-1,287		-2,672
			Credit card					-239		-255		-771		-842
			Automobile					-153		-152		-443		-462
			Other revolving credit and installment					-191		-184		-558		-565
				Total consumer				-1,231		-2,405		-4,229		-6,860
					Total loan charge-offs			-1,439		-2,871		-4,969		-8,440
	Loan recoveries:
		Commercial:
			Commercial and industrial					93		154		288		368
			Real estate mortgage					64		46		149		115
			Real estate construction					23		40		114		96
			Lease financing					3		4		13		15
			Foreign					6		5		23		26
				Total commercial				189		249		587		620
		Consumer:
			Real estate 1-4 family first mortgage					61		46		171		112
			Real estate 1-4 family junior lien mortgage					70		59		204		184
			Credit card					32		43		95		148
			Automobile					75		77		247		285
			Other revolving credit and installment					37		39		119		138
				Total consumer				275		264		836		867
					Total loan recoveries			464		513		1,423		1,487
						Net loan charge-offs (2)		-975		-2,358		-3,546		-6,953
	Allowances related to business combinations/other							-8		-		-21		-53
	Balance, end of period						$	15,647		17,803		15,647		17,803
	Components:
		Allowance for loan losses					$	15,159		17,385		15,159		17,385
		Allowance for unfunded credit commitments						488		418		488		418
			Allowance for credit losses (3)				$	15,647		17,803		15,647		17,803
	Net loan charge-offs (annualized) as a percentage of average total loans (2)							0.48	%	1.21		0.59		1.2
	Allowance for loan losses as a percentage of total loans (3)							1.87		2.22		1.87		2.22
	Allowance for credit losses as a percentage of total loans (3)							1.93		2.27		1.93		2.27
	Certain impaired loans with an allowance calculated by discounting expected cash flows using the loan's effective interest rate over the remaining life of the loan recognize reductions in the allowance as interest income.
	For PCI loans, charge-offs are only recorded to the extent that losses exceed the purchase accounting estimates.
	The allowance for credit losses includes $22 million and $160 million at September 30, 2013 and 2012, respectively, related to PCI loans acquired from Wachovia. Loans acquired from Wachovia are included in total loans net of related purchase accounting net write-downs.
Loans and Allowance for Credit Losses, Allowance for Credit Losses by Category	'
								2013				2012
	(in millions)				Commercial		Consumer	Total		Commercial	Consumer	Total
	Quarter ended September 30,
	Balance, beginning of period				$	5,896	10,722	16,618		6,159	12,487	18,646
		Provision for credit losses				65	10	75		-108	1,699	1,591
		Interest income on certain impaired loans				-11	-52	-63		-22	-54	-76
		Loan charge-offs				-208	-1,231	-1,439		-466	-2,405	-2,871
		Loan recoveries				189	275	464		249	264	513
			Net loan charge-offs			-19	-956	-975		-217	-2,141	-2,358
		Allowance related to business combinations/other				-8	-	-8		-	-	-
	Balance, end of period				$	5,923	9,724	15,647		5,812	11,991	17,803
	Nine months ended September 30,
	Balance, beginning of period				$	5,714	11,763	17,477		6,358	13,310	19,668
		Provision for credit losses				429	1,517	1,946		490	4,896	5,386
		Interest income on certain impaired loans				-46	-163	-209		-76	-169	-245
		Loan charge-offs				-740	-4,229	-4,969		-1,580	-6,860	-8,440
		Loan recoveries				587	836	1,423		620	867	1,487
			Net loan charge-offs			-153	-3,393	-3,546		-960	-5,993	-6,953
		Allowance related to business combinations/other				-21	-	-21		-	-53	-53
	Balance, end of period				$	5,923	9,724	15,647		5,812	11,991	17,803
Loans and Allowance for Credit Losses, by Impairment Methodology	'
						Allowance for credit losses				Recorded investment in loans
	(in millions)					Commercial	Consumer	Total		Commercial	Consumer	Total
	30-Sep-13
	Collectively evaluated (1)				$	4,566	5,473	10,039		363,050	392,594	755,644
	Individually evaluated (2)					1,340	4,246	5,586		6,018	22,829	28,847
	PCI (3)					17	5	22		2,977	24,857	27,834
		Total			$	5,923	9,724	15,647		372,045	440,280	812,325
	31-Dec-12
	Collectively evaluated (1)				$	3,951	7,524	11,475		349,035	389,559	738,594
	Individually evaluated (2)					1,675	4,210	5,885		8,186	21,826	30,012
	PCI (3)					88	29	117		3,977	26,991	30,968
		Total			$	5,714	11,763	17,477		361,198	438,376	799,574
	Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans.
	Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans.
	Represents the allowance and related loan carrying value determined in accordance with ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality (formerly SOP 03-3) and pursuant to amendments by ASU 2010-20 regarding allowance for PCI loans.
Loans by Credit Quality Indicator	'
						Commercial		Real	Real
							and	estate	estate	Lease
	(in millions)						industrial	mortgage	construction	financing	Foreign	Total
	30-Sep-13
	By risk category:
		Pass				$	175,435	91,622	13,730	11,207	43,118	335,112
		Criticized					16,093	12,499	2,078	481	2,805	33,956
			Total commercial loans (excluding PCI)				191,528	104,121	15,808	11,688	45,923	369,068
	Total commercial PCI loans (carrying value)						210	1,419	605	-	743	2,977
				Total commercial loans		$	191,738	105,540	16,413	11,688	46,666	372,045
	31-Dec-12
	By risk category:
		Pass				$	169,293	87,183	12,224	11,787	35,380	315,867
		Criticized					18,207	17,187	3,803	637	1,520	41,354
			Total commercial loans (excluding PCI)				187,500	104,370	16,027	12,424	36,900	357,221
	Total commercial PCI loans (carrying value)						259	1,970	877	-	871	3,977
				Total commercial loans		$	187,759	106,340	16,904	12,424	37,771	361,198
Loans by Delinquency Status, Commercial	'
						Commercial		Real	Real
							and	estate	estate	Lease
	(in millions)					industrial		mortgage	construction	financing	Foreign	Total
	30-Sep-13
	By delinquency status:
		Current-29 DPD and still accruing				$	190,267	101,046	15,019	11,634	45,870	363,836
		30-89 DPD and still accruing					327	539	271	37	5	1,179
		90+ DPD and still accruing					125	40	1	-	1	167
	Nonaccrual loans						809	2,496	517	17	47	3,886
			Total commercial loans (excluding PCI)				191,528	104,121	15,808	11,688	45,923	369,068
	Total commercial PCI loans (carrying value)						210	1,419	605	-	743	2,977
				Total commercial loans		$	191,738	105,540	16,413	11,688	46,666	372,045
	31-Dec-12
	By delinquency status:
		Current-29 DPD and still accruing				$	185,614	100,317	14,861	12,344	36,837	349,973
		30-89 DPD and still accruing					417	503	136	53	12	1,121
		90+ DPD and still accruing					47	228	27	-	1	303
	Nonaccrual loans						1,422	3,322	1,003	27	50	5,824
			Total commercial loans (excluding PCI)				187,500	104,370	16,027	12,424	36,900	357,221
	Total commercial PCI loans (carrying value)						259	1,970	877	-	871	3,977
				Total commercial loans		$	187,759	106,340	16,904	12,424	37,771	361,198
Loans by Delinquency Status, Consumer	'
							Real estate	Real estate			Other
							1-4 family	1-4 family			revolving
							first	junior lien	Credit		credit and
	(in millions)						mortgage	mortgage	card	Automobile	installment	Total
	30-Sep-13
	By delinquency status:
		Current-29 DPD				$	189,734	65,911	24,836	48,821	31,115	360,417
		30-59 DPD					2,775	453	196	654	144	4,222
		60-89 DPD					1,209	265	131	155	107	1,867
		90-119 DPD					648	180	112	57	71	1,068
		120-179 DPD					800	244	172	5	19	1,240
		180+ DPD					5,472	495	1	1	7	5,976
	Government insured/guaranteed loans (1)						29,556	-	-	-	11,077	40,633
		Total consumer loans (excluding PCI)					230,194	67,548	25,448	49,693	42,540	415,423
	Total consumer PCI loans (carrying value)						24,730	127	-	-	-	24,857
			Total consumer loans			$	254,924	67,675	25,448	49,693	42,540	440,280
	31-Dec-12
	By delinquency status:
		Current-29 DPD				$	179,870	73,256	23,976	44,973	29,546	351,621
		30-59 DPD					3,295	577	211	798	168	5,049
		60-89 DPD					1,528	339	143	164	108	2,282
		90-119 DPD					853	265	122	57	73	1,370
		120-179 DPD					1,141	358	187	5	28	1,719
		180+ DPD					6,655	518	1	1	4	7,179
	Government insured/guaranteed loans (1)						29,719	-	-	-	12,446	42,165
		Total consumer loans (excluding PCI)					223,061	75,313	24,640	45,998	42,373	411,385
	Total consumer PCI loans (carrying value)						26,839	152	-	-	-	26,991
			Total consumer loans			$	249,900	75,465	24,640	45,998	42,373	438,376
	Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA and student loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under the Federal Family Education Loan Program (FFELP). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $19.7 billion at September 30, 2013, compared with $20.2 billion at December 31, 2012. Student loans 90+ DPD totaled $917 million at September 30, 2013, compared with $1.1 billion at December 31, 2012.
Loans by FICO Score, Consumer	'
							Real estate	Real estate			Other
							1-4 family	1-4 family			revolving
							first	junior lien	Credit		credit and
	(in millions)						mortgage	mortgage	card	Automobile	installment	Total
	30-Sep-13
	By updated FICO:
		< 600				$	14,914	5,270	2,295	8,013	921	31,413
		600-639					9,397	3,366	2,072	5,945	997	21,777
		640-679					15,407	6,141	3,996	8,880	2,111	36,535
		680-719					24,809	10,413	5,192	8,850	3,873	53,137
		720-759					33,414	14,160	5,289	6,400	5,177	64,440
		760-799					70,177	19,740	4,244	6,076	6,651	106,888
		800+					29,576	7,461	2,114	5,100	4,957	49,208
	No FICO available						2,944	997	246	429	1,921	6,537
	FICO not required						-	-	-	-	4,855	4,855
	Government insured/guaranteed loans (1)						29,556	-	-	-	11,077	40,633
			Total consumer loans (excluding PCI)				230,194	67,548	25,448	49,693	42,540	415,423
	Total consumer PCI loans (carrying value)						24,730	127	-	-	-	24,857
				Total consumer loans		$	254,924	67,675	25,448	49,693	42,540	440,280
	31-Dec-12
	By updated FICO:
		< 600				$	17,662	6,122	2,314	7,928	1,163	35,189
		600-639					10,208	3,660	1,961	5,451	952	22,232
		640-679					15,764	6,574	3,772	8,142	2,011	36,263
		680-719					24,725	11,361	4,990	7,949	3,691	52,716
		720-759					31,502	15,992	5,114	5,787	4,942	63,337
		760-799					63,946	21,874	4,109	5,400	6,971	102,300
		800+					26,044	8,526	2,223	4,443	1,912	43,148
	No FICO available						3,491	1,204	157	898	2,882	8,632
	FICO not required						-	-	-	-	5,403	5,403
	Government insured/guaranteed loans (1)						29,719	-	-	-	12,446	42,165
			Total consumer loans (excluding PCI)				223,061	75,313	24,640	45,998	42,373	411,385
	Total consumer PCI loans (carrying value)						26,839	152	-	-	-	26,991
				Total consumer loans		$	249,900	75,465	24,640	45,998	42,373	438,376
	Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA and student loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under FFELP.
Loans by Loan to Value Ratio, Consumer	'
							30-Sep-13				31-Dec-12
							Real estate	Real estate			Real estate	Real estate
							1-4 family	1-4 family			1-4 family	1-4 family
							first	junior lien			first	junior lien
							mortgage	mortgage			mortgage	mortgage
	(in millions)						by LTV	by CLTV	Total		by LTV	by CLTV	Total
	By LTV/CLTV:
		0-60%				$	70,848	12,791	83,639		56,247	12,170	68,417
		60.01-80%					74,080	16,097	90,177		69,759	15,168	84,927
		80.01-100%					33,386	16,406	49,792		34,830	18,038	52,868
		100.01-120% (1)					12,551	11,060	23,611		17,004	13,576	30,580
		> 120% (1)					8,066	9,724	17,790		13,529	14,610	28,139
	No LTV/CLTV available						1,707	1,470	3,177		1,973	1,751	3,724
	Government insured/guaranteed loans (2)						29,556	-	29,556		29,719	-	29,719
			Total consumer loans (excluding PCI)				230,194	67,548	297,742		223,061	75,313	298,374
	Total consumer PCI loans (carrying value)						24,730	127	24,857		26,839	152	26,991
				Total consumer loans		$	254,924	67,675	322,599		249,900	75,465	325,365
	Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV.
	Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
Nonaccrual Loans	'
							Sept. 30,		Dec. 31,
	(in millions)							2013	2012
	Commercial:
		Commercial and industrial					$	809	1,422
		Real estate mortgage						2,496	3,322
		Real estate construction						517	1,003
		Lease financing						17	27
		Foreign						47	50
			Total commercial (1)					3,886	5,824
	Consumer:
		Real estate 1-4 family first mortgage (2)						10,450	11,455
		Real estate 1-4 family junior lien mortgage						2,333	2,922
		Automobile						188	245
		Other revolving credit and installment						36	40
			Total consumer					13,007	14,662
				Total nonaccrual loans
					(excluding PCI)		$	16,893	20,486
	Includes LHFS of $26 million and $16 million at September 30, 2013 and December 31, 2012, respectively.
	Includes MHFS of $288 million and $336 million at September 30, 2013 and December 31, 2012, respectively.
90 days or More Past Due and Still Accruing Loans	'
								Sept. 30,	Dec. 31,
	(in millions)						2013		2012
	Loan 90 days or more past due and still accruing:
	Total (excluding PCI):						$	22,181	23,245
		Less: FHA insured/VA guaranteed (1)(2)						20,214	20,745
		Less: Student loans guaranteed
			under the FFELP (3)					917	1,065
				Total, not government
					insured/guaranteed		$	1,050	1,435
	By segment and class, not government
		insured/guaranteed:
	Commercial:
		Commercial and industrial					$	125	47
		Real estate mortgage						40	228
		Real estate construction						1	27
		Foreign						1	1
			Total commercial					167	303
	Consumer:
		Real estate 1-4 family first mortgage (2)						383	564
		Real estate 1-4 family junior lien mortgage (2)						89	133
		Credit card						285	310
		Automobile						48	40
		Other revolving credit and installment						78	85
			Total consumer					883	1,132
				Total, not government
					insured/guaranteed		$	1,050	1,435
	Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
	Includes mortgage loans held for sale 90 days or more past due and still accruing.
	Represents loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under the FFELP.
Impaired Loans	'
								Recorded investment
									Impaired loans
							Unpaid		with related	Related
							principal	Impaired	allowance for	allowance for
	(in millions)						balance	loans	credit losses	credit losses
	30-Sep-13
	Commercial:
		Commercial and industrial				$	2,343	1,418	1,154	234
		Real estate mortgage					4,788	3,765	3,624	955
		Real estate construction					1,125	789	760	137
		Lease financing					58	24	24	8
		Foreign					106	22	22	6
			Total commercial (1)				8,420	6,018	5,584	1,340
	Consumer:
		Real estate 1-4 family first mortgage					22,625	19,614	14,194	3,353
		Real estate 1-4 family junior lien mortgage					3,053	2,516	2,038	729
		Credit card					455	455	455	149
		Automobile					265	212	111	13
		Other revolving credit and installment					42	32	25	2
			Total consumer (2)				26,440	22,829	16,823	4,246
				Total impaired loans (excluding PCI)		$	34,860	28,847	22,407	5,586
	31-Dec-12
	Commercial:
		Commercial and industrial				$	3,331	2,086	2,086	353
		Real estate mortgage					5,766	4,673	4,537	1,025
		Real estate construction					1,975	1,345	1,345	276
		Lease financing					54	39	39	11
		Foreign					109	43	43	9
			Total commercial (1)				11,235	8,186	8,050	1,674
	Consumer:
		Real estate 1-4 family first mortgage					21,293	18,472	15,224	3,074
		Real estate 1-4 family junior lien mortgage					2,855	2,483	2,070	859
		Credit card					531	531	531	244
		Automobile					314	314	314	27
		Other revolving credit and installment					27	26	26	6
			Total consumer (2)				25,020	21,826	18,165	4,210
				Total impaired loans (excluding PCI)		$	36,255	30,012	26,215	5,884
	Excludes the unpaid principal balance for loans that have been fully charged off or otherwise have zero recorded investment.
	At September 30, 2013 and December 31, 2012, includes the recorded investment of $2.4 billion and $1.9 billion, respectively, of government insured/guaranteed loans that are predominantly insured by the FHA or guaranteed by the VA and generally do not have an allowance.
Impaired Loans, Average Recorded Investment and Interest Income	'
						Quarter ended September 30,								Nine months ended September 30,
							2013				2012			2013			2012
							Average	Recognized			Average	Recognized		Average	Recognized		Average	Recognized
							recorded		interest		recorded	interest		recorded		interest	recorded	interest
	(in millions)					investment			income		investment	income	investment			income	investment	income
	Commercial:
		Commercial and industrial				$	1,362		28		2,488	19		1,580		76	2,493	91
		Real estate mortgage					3,868		38		5,147	37		4,093		106	4,826	87
		Real estate construction					878		6		1,831	15		1,070		29	1,897	42
		Lease financing					25		1		61	1		30		1	62	1
		Foreign					27		-		63	1		36		-	34	1
			Total commercial				6,160		73		9,590	73		6,809		212	9,312	222
	Consumer:
		Real estate 1-4 family
			first mortgage				19,593		270		14,768	183		19,359		785	14,631	562
		Real estate 1-4 family
			junior lien mortgage				2,499		36		2,102	20		2,492		109	2,078	64
		Credit card					467		14		566	17		491		43	580	48
		Automobile					228		7		290	7		263		24	290	33
		Other revolving credit
			and installment				32		1		26	1		28		2	25	1
			Total consumer (1)				22,819		328		17,752	228		22,633		963	17,604	708
				Total impaired loans
					(excluding PCI)	$	28,979		401		27,342	301		29,442		1,175	26,916	930
	Interest income:
		Cash basis of accounting						$	129			72				371		198
		Other (2)							272			229				804		732
			Total interest income					$	401			301				1,175		930
	Quarter and nine months ended September 30, 2013, reflect the OCC guidance issued in third quarter 2012, which requires consumer loans discharged in bankruptcy to be classified as TDRs, as well as written down to net realizable collateral value.
	Includes interest recognized on accruing TDRs, interest recognized related to certain impaired loans which have an allowance calculated using discounting, and amortization of purchase accounting adjustments related to certain impaired loans. See footnote 1 to the table of changes in the allowance for credit losses.
Troubled Debt Restructurings, Modification by Type	'
							Primary modification type (1)					Financial effects of modifications
													Weighted		Recorded
													average		investment
								Interest					interest		related to
								rate	Other			Charge-	rate		interest rate
	(in millions)					Principal (2)		reduction	concessions (3)	Total		offs (4)	reduction		reduction (5)
	Quarter ended September 30, 2013
	Commercial:
		Commercial and industrial				$	2	73	316	391		6	3.58	%	$	73
		Real estate mortgage					-	62	345	407		1	1.65			62
		Real estate construction					-	6	54	60		-	1.08			6
		Lease financing					-	-	-	-		-	-			-
		Foreign					-	1	-	1		-	0.26			1
			Total commercial				2	142	715	859		7	2.6			142
	Consumer:
		Real estate 1-4 family first mortgage					271	259	832	1,362		49	2.8			485
		Real estate 1-4 family junior lien mortgage					24	41	77	142		8	3.43			64
		Credit card					-	46	-	46		-	10.15			46
		Automobile					1	2	26	29		9	8.98			2
		Other revolving credit and installment					-	2	2	4		-	5.4			2
		Trial modifications (6)					-	-	37	37		-	-			-
			Total consumer				296	350	974	1,620		66	3.46			599
				Total		$	298	492	1,689	2,479		73	3.3	%	$	741
	Quarter ended September 30, 2012
	Commercial:
		Commercial and industrial				$	-	5	364	369		2	1.15	%	$	5
		Real estate mortgage					2	40	405	447		2	1.48			42
		Real estate construction					12	1	111	124		1	2.26			2
		Lease financing					-	-	1	1		-	-			-
		Foreign					-	-	14	14		-	-			-
			Total commercial				14	46	895	955		5	1.47			49
	Consumer:
		Real estate 1-4 family first mortgage					379	390	3,822	4,591		221	3.04			686
		Real estate 1-4 family junior lien mortgage					17	57	489	563		445	3.66			73
		Credit card					-	58	-	58		-	10.85			58
		Automobile					1	14	170	185		7	5.47			14
		Other revolving credit and installment					-	1	17	18		-	5.43			1
		Trial modifications (6)					-	-	7	7		-	-			-
			Total consumer				397	520	4,505	5,422		673	3.68			832
				Total		$	411	566	5,400	6,377		678	3.56	%	$	881
	(continued on following page)
	(continued from previous page)
							Primary modification type (1)					Financial effects of modifications
													Weighted		Recorded
													average		investment
								Interest					interest		related to
								rate	Other			Charge-	rate		interest rate
	(in millions)					Principal (2)		reduction	concessions (3)	Total		offs (4)	reduction		reduction (5)
	Nine months ended September 30, 2013
	Commercial:
		Commercial and industrial				$	2	156	877	1,035		7	5.09	%	$	156
		Real estate mortgage					28	232	1,113	1,373		7	1.67			232
		Real estate construction					-	9	253	262		4	1.02			9
		Lease financing					-	-	-	-		-	-			-
		Foreign					15	1	-	16		-	-			1
			Total commercial				45	398	2,243	2,686		18	2.99			398
	Consumer:
		Real estate 1-4 family first mortgage					897	1,016	2,928	4,841		194	2.63			1,671
		Real estate 1-4 family junior lien mortgage					76	135	335	546		24	3.3			206
		Credit card					-	138	-	138		-	10.47			138
		Automobile					3	10	74	87		25	7.39			10
		Other revolving credit and installment					-	8	9	17		-	4.95			8
		Trial modifications (6)					-	-	91	91		-	-			-
		Total consumer				976	1,307	3,437	5,720		243	3.27			2,033
			Total		$	1,021	1,705	5,680	8,406		261	3.22	%	$	2,431
Nine months ended September 30, 2012
Commercial:
	Commercial and industrial				$	11	27	1,113	1,151		22	1.53	%	$	28
	Real estate mortgage					13	160	1,341	1,514		9	1.47			164
	Real estate construction					12	8	395	415		10	2.49			8
	Lease financing					-	-	3	3		-	-			-
	Foreign					-	-	16	16		-	-			-
		Total commercial				36	195	2,868	3,099		41	1.52			200
Consumer:
	Real estate 1-4 family first mortgage					1,033	894	4,194	6,121		354	2.96			1,728
	Real estate 1-4 family junior lien mortgage					50	194	558	802		461	3.79			238
	Credit card					-	191	-	191		-	10.83			191
	Automobile					5	46	227	278		26	6.94			48
	Other revolving credit and installment					-	2	18	20		1	4.57			2
	Trial modifications (6)					-	-	678	678		-	-			-
		Total consumer				1,088	1,327	5,675	8,090		842	3.82			2,207
			Total		$	1,124	1,522	8,543	11,189		883	3.63	%	$	2,407
-1	Amounts represent the recorded investment in loans after recognizing the effects of the TDR, if any. TDRs with multiple types of concessions are presented only once in the table in the first category type based on the order presented. The reported amounts include loans remodified in the current reporting period, which total $807 million and $652 million for the third quarter 2013 and 2012 and $2.4 billion and $1.8 billion for the nine months ended September 30, 2013 and 2012, respectively.
-2	Principal modifications include principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, and principal that has been legally separated and deferred to the end of the loan, with a zero percent contractual interest rate.
-3	Other concessions include loans for which the interest rate is not commensurate with the credit risk that results from modification. These modifications would include renewals, term extensions and other interest and noninterest adjustments, but exclude modifications that also forgive principal and/or reduce the interest rate. Includes $703 million and $2.6 billion of consumer loans discharged in bankruptcy for the quarter and nine months ended September 30, 2013, respectively, and $4.3 billion for the quarter and nine months ended September 30, 2012, as a result of the OCC guidance implementation. The OCC guidance issued in third quarter 2012 required consumer loans discharged in bankruptcy to be classified as TDRs, as well as written down to net realizable collateral value.
-4	Charge-offs include write-downs of the investment in the loan in the period it is contractually modified. The amount of charge-off will differ from the modification terms if the loan has been charged down prior to the modification based on our policies. In addition, there may be cases where we have a charge-off/down with no legal principal modification. Modifications resulted in legally forgiving principal (actual, contingent or deferred) of $87 million and $141 million for the third quarters of 2013 and 2012 and $316 million and $362 million for the nine months ended of September 30, 2013 and 2012, respectively.
-5	Reflects the effect of reduced interest rates on loans with principal or interest rate reduction primary modification type.
-6	Trial modifications are granted a delay in payments due under the original terms during the trial payment period. However, these loans continue to advance through delinquency status and accrue interest according to their original terms. Any subsequent permanent modification generally includes interest rate related concessions; however, the exact concession type and resulting financial effect are usually not known until the loan is permanently modified. Trial modifications for the period are presented net of previously reported trial modifications that became permanent in the current period.
Troubled Debt Restructuring, Current Defaults	'
						Recorded investment of defaults
							Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Commercial:
		Commercial and industrial				$	19	119		214	269
		Real estate mortgage					51	124		228	473
		Real estate construction					10	23		62	252
		Lease financing					-	-		-	-
		Foreign					1	-		1	-
			Total commercial				81	266		505	994
	Consumer:
		Real estate 1-4 family first mortgage					107	150		271	447
		Real estate 1-4 family junior lien mortgage					9	12		26	48
		Credit card					13	22		45	73
		Automobile					5	18		14	45
		Other revolving credit and installment					1	-		1	1
			Total consumer				135	202		357	614
				Total		$	216	468		862	1,608
Purchased Credit Impaired Loans, Loans Outstanding	'
							Sept. 30,		December 31,
	(in millions)						2013		2012	2008
	Commercial:
		Commercial and industrial				$	210		259	4,580
		Real estate mortgage					1,419		1,970	5,803
		Real estate construction					605		877	6,462
		Foreign					743		871	1,859
			Total commercial				2,977		3,977	18,704
	Consumer:
		Real estate 1-4 family first mortgage					24,730		26,839	39,214
		Real estate 1-4 family junior lien mortgage					127		152	728
		Automobile					-		-	151
			Total consumer				24,857		26,991	40,093
				Total PCI loans (carrying value)		$	27,834		30,968	58,797
	Total PCI loans (unpaid principal balance)					$	39,870		45,174	98,182
Purchased Credit Impaired Loans, Accretable Yield	'
	(in millions)
	Balance, December 31, 2008						$	10,447
		Addition of accretable yield due to acquisitions						131
		Accretion into interest income (1)						-9,351
		Accretion into noninterest income due to sales (2)						-242
		Reclassification from nonaccretable difference for loans with improving credit-related cash flows						5,354
		Changes in expected cash flows that do not affect nonaccretable difference (3)						12,209
	Balance, December 31, 2012							18,548
		Addition of accretable yield due to acquisitions						1
		Accretion into interest income (1)						-1,386
		Accretion into noninterest income due to sales (2)						-151
		Reclassification from nonaccretable difference for loans with improving credit-related cash flows						916
		Changes in expected cash flows that do not affect nonaccretable difference (3)						1,588
	Balance, September 30, 2013						$	19,516
	Balance, June 30, 2013						$	20,021
		Addition of accretable yield due to acquisitions						1
		Accretion into interest income (1)						-481
		Accretion into noninterest income due to sales (2)						-
		Reclassification from nonaccretable difference for loans with improving credit-related cash flows						9
		Changes in expected cash flows that do not affect nonaccretable difference (3)						-34
	Balance, September 30, 2013						$	19,516
	-1	Includes accretable yield released as a result of settlements with borrowers, which is included in interest income.
	-2	Includes accretable yield released as a result of sales to third parties, which is included in noninterest income.
	-3	Represents changes in cash flows expected to be collected due to the impact of modifications, changes in prepayment assumptions, changes in interest rates on variable rate PCI loans and sales to third parties.
Purchased Credit Impaired Loans, Allowance for Credit Losses	'
							Other
	(in millions)				Commercial	Pick-a-Pay	consumer	Total
	Balance, December 31, 2008			$	-	-	-	-
		Provision for losses due to credit deterioration			1,693	-	123	1,816
		Charge-offs			-1,605	-	-94	-1,699
	Balance, December 31, 2012				88	-	29	117
		Reversal of provision for losses			-65	-	-15	-80
		Charge-offs			-6	-	-9	-15
	Balance, September 30, 2013			$	17	-	5	22
	Balance, June 30, 2013			$	49	-	22	71
		Reversal of provision for losses			-31	-	-16	-47
		Charge-offs			-1	-	-1	-2
	Balance, September 30, 2013			$	17	-	5	22
Purchased Credit Impaired Loans by Credit Quality Indicator	'
						Commercial		Real	Real
							and	estate	estate
	(in millions)						industrial	mortgage	construction	Foreign	Total
	30-Sep-13
	By risk category:
		Pass				$	108	357	215	7	687
		Criticized					102	1,062	390	736	2,290
			Total commercial PCI loans			$	210	1,419	605	743	2,977
	31-Dec-12
	By risk category:
		Pass				$	95	341	207	255	898
		Criticized					164	1,629	670	616	3,079
			Total commercial PCI loans			$	259	1,970	877	871	3,977
Purchased Credit Impaired Loans by Delinquency Status, Commercial	'
						Commercial		Real	Real
							and	estate	estate
	(in millions)						industrial	mortgage	construction	Foreign	Total
	30-Sep-13
	By delinquency status:
		Current-29 DPD and still accruing				$	202	1,315	491	634	2,642
		30-89 DPD and still accruing					3	51	32	10	96
		90+ DPD and still accruing					5	53	82	99	239
			Total commercial PCI loans			$	210	1,419	605	743	2,977
	31-Dec-12
	By delinquency status:
		Current-29 DPD and still accruing				$	235	1,804	699	704	3,442
		30-89 DPD and still accruing					1	26	51	-	78
		90+ DPD and still accruing					23	140	127	167	457
			Total commercial PCI loans			$	259	1,970	877	871	3,977
Purchased Credit Impaired Loans by Delinquency Status, Consumer	'
							30-Sep-13				31-Dec-12
							Real estate	Real estate			Real estate	Real estate
							1-4 family	1-4 family			1-4 family	1-4 family
							first	junior lien			first	junior lien
	(in millions)						mortgage	mortgage	Total		mortgage	mortgage	Total
	By delinquency status:
		Current-29 DPD and still accruing				$	20,942	173	21,115		22,304	198	22,502
		30-59 DPD and still accruing					2,247	9	2,256		2,587	11	2,598
		60-89 DPD and still accruing					1,178	5	1,183		1,361	7	1,368
		90-119 DPD and still accruing					494	3	497		650	6	656
		120-179 DPD and still accruing					566	4	570		804	7	811
		180+ DPD and still accruing					4,576	101	4,677		5,356	116	5,472
			Total consumer PCI loans (adjusted unpaid principal balance)			$	30,003	295	30,298		33,062	345	33,407
			Total consumer PCI loans (carrying value)			$	24,730	127	24,857		26,839	152	26,991
Purchased Credit Impaired Loans by FICO Score, Consumer	'
							30-Sep-13				31-Dec-12
							Real estate	Real estate			Real estate	Real estate
							1-4 family	1-4 family			1-4 family	1-4 family
							first	junior lien			first	junior lien
	(in millions)						mortgage	mortgage	Total		mortgage	mortgage	Total
	By FICO:
		< 600				$	10,590	108	10,698		13,163	144	13,307
		600-639					6,200	62	6,262		6,673	68	6,741
		640-679					6,736	71	6,807		6,602	73	6,675
		680-719					3,659	36	3,695		3,635	39	3,674
		720-759					1,657	10	1,667		1,757	11	1,768
		760-799					829	5	834		874	6	880
		800+					207	1	208		202	1	203
	No FICO available						125	2	127		156	3	159
			Total consumer PCI loans (adjusted unpaid principal balance)			$	30,003	295	30,298		33,062	345	33,407
			Total consumer PCI loans (carrying value)			$	24,730	127	24,857		26,839	152	26,991
Purchased Credit Impaired Loans by Loan to Value Ratio, Consumer	'
							30-Sep-13				31-Dec-12
						Real estate		Real estate			Real estate	Real estate
							1-4 family	1-4 family			1-4 family	1-4 family
							first	junior lien			first	junior lien
							mortgage	mortgage			mortgage	mortgage
	(in millions)						by LTV	by CLTV	Total		by LTV	by CLTV	Total
	By LTV/CLTV:
		0-60%				$	1,938	28	1,966		1,374	21	1,395
		60.01-80%					6,122	34	6,156		4,119	30	4,149
		80.01-100%					10,403	75	10,478		9,576	61	9,637
		100.01-120% (1)					6,339	78	6,417		8,084	93	8,177
		> 120% (1)					5,192	79	5,271		9,889	138	10,027
	No LTV/CLTV available						9	1	10		20	2	22
			Total consumer PCI loans (adjusted unpaid principal balance)			$	30,003	295	30,298		33,062	345	33,407
			Total consumer PCI loans (carrying value)			$	24,730	127	24,857		26,839	152	26,991
	Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV.

Other_Assets_Tables

Other Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Other Assets (Tables) [Abstract]	'
Components of Other Assets	'
								Sept. 30,	Dec. 31,
	(in millions)							2013	2012
	Nonmarketable equity investments:
		Cost method:
			Private equity				$	2,413	2,572
			Federal bank stock					4,788	4,227
				Total cost method				7,201	6,799
		Equity method:
			LIHTC investments (1)					5,914	4,767
			Private equity and other					5,714	6,156
				Total equity method				11,628	10,923
		Fair value (2)						911	-
					Total nonmarketable
						equity investments		19,740	17,722
	Corporate/bank-owned life insurance							18,694	18,649
	Accounts receivable							27,715	25,828
	Interest receivable							5,221	5,006
	Core deposit intangibles							4,984	5,915
	Customer relationship and
		other amortized intangibles						1,151	1,352
	Foreclosed assets:
		GNMA (3)						1,781	1,509
		Other						2,021	2,514
	Operating lease assets							1,983	2,001
	Due from customers on acceptances							352	282
	Other							10,620	12,800
						Total other assets	$	94,262	93,578
	Represents low income housing tax credit investments.
	Represents nonmarketable equity investments for which we have elected the fair value option. See Note 13 for additional information.
	These are foreclosed real estate resulting from government insured/guaranteed loans. Both principal and interest related to these foreclosed real estate assets are collectible because the loans were predominantly insured by the FHA or guaranteed by the VA.
Income Related to Nonmarketable Equity Investments	'
	Income (expense) related to nonmarketable equity investments was:
							Quarter			Nine months
						ended Sept. 30,				ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Net realized gains
		from nonmarketable
		equity investments				$	382	125		606	415
	All other						-56	-27		-147	-51
		Total				$	326	98		459	364

Securitizations_and_Variable_I1

Securitizations and Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2013
Securitizations and Variable Interest Entities (Tables) [Abstract]	'
Assets and Liabilities associated with Variable Interest entities	'
									Transfers that
					VIEs that we			VIEs	we account
					do not			that we	for as secured
	(in millions)				consolidate		consolidate		borrowings			Total
	30-Sep-13
	Cash				$	-		171		27		198
	Trading assets					1,751		186		195		2,132
	Securities available for sale (1)					19,034		1,377		10,647		31,058
	Mortgages held for sale					-		66		-		66
	Loans					7,490		8,007		6,257		21,754
	Mortgage servicing rights					13,975		-		-		13,975
	Other assets					5,868		348		138		6,354
		Total assets				48,118		10,155		17,264		75,537
	Short-term borrowings					-		23	-2	8,184		8,207
	Accrued expenses and other liabilities					3,842		807	-2	5		4,654
	Long-term debt					-		2,571	-2	5,889		8,460
		Total liabilities				3,842		3,401		14,078		21,321
	Noncontrolling interests					-		7		-		7
			Net assets		$	44,276		6,747		3,186		54,209
	31-Dec-12
	Cash				$	-		260		30		290
	Trading assets					1,902		114		218		2,234
	Securities available for sale (1)					19,900		2,772		14,848		37,520
	Mortgages held for sale					-		469		-		469
	Loans					9,841		10,553		7,088		27,482
	Mortgage servicing rights					11,114		-		-		11,114
	Other assets					4,993		457		161		5,611
		Total assets				47,750		14,625		22,345		84,720
	Short-term borrowings					-		2,059	-2	13,228		15,287
	Accrued expenses and other liabilities					3,441		901	-2	20		4,362
	Long-term debt					-		3,483	-2	6,520		10,003
		Total liabilities				3,441		6,443		19,768		29,652
	Noncontrolling interests					-		48		-		48
			Net assets		$	44,309		8,134		2,577		55,020
	Excludes certain debt securities related to loans serviced for the Federal National Mortgage Association (FNMA), Federal Home Loan Mortgage Corporation (FHLMC) and GNMA.
	Includes the following VIE liabilities at September 30, 2013 and December 31, 2012, respectively, with recourse to the general credit of Wells Fargo: Short-term borrowings, $0 and $2.1 billion; Accrued expenses and other liabilities, $704 million and $767 million; and Long-term debt, $29 million and $29 million.
Transactions with Variable Interest Entity	'
									Carrying value - asset (liability)
												Other
							Total		Debt and			commitments
							VIE		equity	Servicing		and	Net
	(in millions)						assets	interests (1)		assets	Derivatives	guarantees	assets
	30-Sep-13
	Residential mortgage loan
		securitizations:
			Conforming			$	1,311,328		3,175	13,337	-	-1,150	15,362
			Other/nonconforming				40,113		1,841	252	-	-47	2,046
	Commercial mortgage securitizations						170,356		7,466	362	256	-	8,084
	Collateralized debt obligations:
			Debt securities				6,284		36	-	339	-130	245
			Loans (2)				6,038		5,905	-	-	-	5,905
	Asset-based finance structures						11,030		7,015	-	-91	-	6,924
	Tax credit structures						21,642		6,135	-	-	-2,164	3,971
	Collateralized loan obligations						4,791		984	-	-	-	984
	Investment funds						3,700		51	-	-	-	51
	Other (3)						9,515		871	24	-3	-188	704
			Total			$	1,584,797		33,479	13,975	501	-3,679	44,276
									Maximum exposure to loss
												Other
									Debt and			commitments
									equity	Servicing		and	Total
								interests		assets	Derivatives	guarantees	exposure
	Residential mortgage loan
		securitizations:
			Conforming (4)					$	3,175	13,337	-	3,225	19,737
			Other/nonconforming						1,841	252	-	369	2,462
	Commercial mortgage securitizations								7,466	362	359	-	8,187
	Collateralized debt obligations:
			Debt securities						36	-	339	130	505
			Loans (2)						5,905	-	-	-	5,905
	Asset-based finance structures								7,015	-	91	1,687	8,793
	Tax credit structures								6,135	-	-	499	6,634
	Collateralized loan obligations								984	-	-	158	1,142
	Investment funds								51	-	-	33	84
	Other (3)								871	24	177	188	1,260
			Total					$	33,479	13,975	966	6,289	54,709
	(continued on following page)
	(continued from previous page)
									Carrying value - asset (liability)
												Other
							Total		Debt and			commitments
							VIE		equity	Servicing		and	Net
	(in millions)						assets		interests (1)	assets	Derivatives	guarantees	assets
	31-Dec-12
	Residential mortgage loan securitizations:
		Conforming				$	1,268,494		3,620	10,336	-	-1,690	12,266
		Other/nonconforming					49,794		2,188	284	-	-53	2,419
	Commercial mortgage securitizations						168,126		7,081	466	404	-	7,951
	Collateralized debt obligations:
		Debt securities					6,940		13	-	471	144	628
		Loans (2)					8,155		7,962	-	-	-	7,962
	Asset-based finance structures						10,404		7,155	-	-104	-	7,051
	Tax credit structures						20,098		5,180	-	-	-1,657	3,523
	Collateralized loan obligations						6,641		1,439	-	1	-	1,440
	Investment funds						4,771		49	-	-	-	49
	Other (3)						10,401		977	28	14	1	1,020
		Total				$	1,553,824		35,664	11,114	786	-3,255	44,309
									Maximum exposure to loss
												Other
									Debt and			commitments
								equity	Servicing		and	Total
								interests	assets	Derivatives	guarantees	exposure
Residential mortgage loan securitizations:
	Conforming (4)						$	3,620	10,336	-	5,061	19,017
	Other/nonconforming							2,188	284	-	353	2,825
Commercial mortgage securitizations								7,081	466	446	-	7,993
Collateralized debt obligations:
	Debt securities							13	-	471	144	628
	Loans (2)							7,962	-	-	-	7,962
Asset-based finance structures								7,155	-	104	1,967	9,226
Tax credit structures								5,180	-	-	247	5,427
Collateralized loan obligations								1,439	-	1	261	1,701
Investment funds								49	-	-	27	76
Other (3)								977	28	318	119	1,442
	Total						$	35,664	11,114	1,340	8,179	56,297
Includes total equity interests of $6.6 billion at September 30, 2013 and $5.8 billion at December 31, 2012. Also includes debt interests in the form of both loans and securities. Excludes certain debt securities held related to loans serviced for FNMA, FHLMC and GNMA.
Represents senior loans to trusts that are collateralized by asset-backed securities. The trusts invest primarily in senior tranches from a diversified pool of primarily U.S. asset securitizations, of which all are current, and over 72% and 83% were rated as investment grade by the primary rating agencies at September 30, 2013 and December 31, 2012, respectively. These senior loans are accounted for at amortized cost and are subject to the Company's allowance and credit charge-off policies.
Includes structured financing, student loan securitizations, auto loan and lease securitizations and credit-linked note structures. Also contains investments in auction rate securities (ARS) issued by VIEs that we do not sponsor and, accordingly, are unable to obtain the total assets of the entity.
Cash flows with securitization trusts	'
				2013			2012
					Other			Other
			Mortgage		financial		Mortgage	financial
	(in millions)			loans	assets		loans	assets
	Quarter ended September 30,
	Sales proceeds from securitizations (1)		$	86,423	-		135,596	-
	Fees from servicing rights retained			1,051	2		1,088	3
	Other interests held			1,014	24		466	20
	Purchases of delinquent assets			-	-		2	-
	Servicing advances, net of repayments			-181	-		25	-
	Nine months ended September 30,
	Sales proceeds from securitizations (1)		$	308,016	-		412,465	-
	Fees from servicing rights retained			3,178	7		3,312	8
	Other interests held			1,861	72		1,333	114
	Purchases of delinquent assets			16	-		54	-
	Servicing advances, net of repayments			633	-		151	-
	Represents cash flow data for all loans securitized in the period presented.
Key Assumptions To Measure Mortgage Servicing Assets At Date Of Securitization	'
				Residential mortgage
				servicing rights
				2013		2012
	Quarter ended September 30,
	Prepayment speed (1)			9.6	%	13.9
	Discount rate			7.5		7.3
	Cost to service ($ per loan) (2)		$	181		169
	Nine months ended September 30,
	Prepayment speed (1)			11.2	%	13.4
	Discount rate			7.2		7.3
	Cost to service ($ per loan) (2)		$	187		143
	The prepayment speed assumption for residential mortgage servicing rights includes a blend of prepayment speeds and default rates. Prepayment speed assumptions are influenced by mortgage interest rate inputs as well as our estimation of drivers of borrower behavior.
	Includes costs to service and unreimbursed foreclosure costs.
Key Assumptions To Measure Mortgage Servicing Rights And Other Interests Held At Balance Sheet Date	'
									Other interests held
						Residential
						mortgage		Interest-				Consumer				Commercial (2)
						servicing			only		Subordinated			Senior	Subordinated		Senior
	($ in millions, except cost to service amounts)						rights (1)		strips			bonds		bonds		bonds	bonds
	Fair value of interests held at September 30, 2013					$	14,501		147			40		-		256	613
	Expected weighted-average life (in years)						6		3.9			5.9		-		4.3	6.6
	Key economic assumptions:
		Prepayment speed assumption (3)					11.7	%	10.6			6.7		-
			Decrease in fair value from:
				10% adverse change		$	888		3			-		-
				25% adverse change			2,113		7			-		-
		Discount rate assumption					7.6	%	18.1			4.6		-		9.5	4
			Decrease in fair value from:
				100 basis point increase		$	784		3			2		-		9	33
				200 basis point increase			1,499		5			4		-		18	63
		Cost to service assumption ($ per loan)					198
			Decrease in fair value from:
				10% adverse change			606
				25% adverse change			1,514
		Credit loss assumption										0.4	%	-		1.5	-
			Decrease in fair value from:
				10% higher losses							$	-		-		4	-
				25% higher losses								-		-		6	-
	Fair value of interests held at December 31, 2012					$	11,538		187			40		-		249	982
	Expected weighted-average life (in years)						4.8		4.1			5.9		-		4.7	5.3
	Key economic assumptions:
	Prepayment speed assumption (3)						15.7	%	10.6			6.8		-
		Decrease in fair value from:
			10% adverse change			$	869		5			-		-
			25% adverse change				2,038		12			-		-
		Discount rate assumption					7.4	%	16.9			8.9		-		3.5	2.2
			Decrease in fair value from:
				100 basis point increase		$	562		4			2		-		12	43
				200 basis point increase			1,073		8			4		-		21	84
		Cost to service assumption ($ per loan)					219
			Decrease in fair value from:
				10% adverse change			615
				25% adverse change			1,537
		Credit loss assumption										0.4	%	-		10	-
			Decrease in fair value from:
				10% higher losses							$	-		-		12	-
				25% higher losses								-		-		19	-
	See narrative following this table for a discussion of commercial mortgage servicing rights.
	Prepayment speed assumptions do not significantly impact the value of commercial mortgage securitization bonds as the underlying commercial mortgage loans experience significantly lower prepayments due to certain contractual restrictions, impacting the borrower's ability to prepay the mortgage.
	The prepayment speed assumption for residential mortgage servicing rights includes a blend of prepayment speeds and default rates. Prepayment speed assumptions are influenced by mortgage interest rate inputs as well as our estimation of drivers of borrower behavior.
Principal Balances - Off-Balance Sheet Securitized Loans	'
													Net charge-offs
							Total loans			Delinquent loans			Nine months ended
							Sept. 30,	Dec. 31,		Sept. 30,	Dec. 31,		Sept. 30,
	(in millions)						2013	2012		2013	2012		2013	2012
	Commercial:
		Real estate mortgage				$	123,093	128,564		8,846	12,216		465	323
			Total commercial				123,093	128,564		8,846	12,216		465	323
	Consumer:
		Real estate 1-4 family first mortgage					1,312,533	1,283,504		18,428	21,574		654	876
		Real estate 1-4 family junior lien mortgage					1	1		-	-		-	-
		Other revolving credit and installment					1,833	2,034		93	110		-	-
			Total consumer				1,314,367	1,285,539		18,521	21,684		654	876
				Total off-balance sheet securitized loans (1)		$	1,437,460	1,414,103		27,367	33,900		1,119	1,199
	At September 30, 2013 and December 31, 2012, the table includes total loans of $1.3 trillion at both dates and delinquent loans of $15.2 billion and $17.4 billion, respectively for FNMA, FHLMC and GNMA. Net charge-offs exclude loans sold to FNMA, FHLMC and GNMA as we do not service or manage the underlying real estate upon foreclosure and, as such, do not have access to net charge-off information.
Transactions With Consolidated Variable Interest Entities	'
									Carrying value
							Total				Third
							VIE	Consolidated			party	Noncontrolling			Net
	(in millions)						assets		assets		liabilities		interests		assets
	30-Sep-13
	Secured borrowings:
		Municipal tender option bond securitizations				$	13,567		10,906		-8,189		-		2,717
		Commercial real estate loans					596		596		-378		-		218
		Residential mortgage securitizations					5,447		5,762		-5,511		-		251
			Total secured borrowings				19,610		17,264		-14,078		-		3,186
	Consolidated VIEs:
		Nonconforming residential
			mortgage loan securitizations				7,141		6,332		-2,381		-		3,951
		Multi-seller commercial paper conduit					-		-		-		-		-
		Structured asset finance					60		60		-18		-		42
		Investment funds					1,565		1,565		-68		-		1,497
		Other					2,270		2,198		-934		-7		1,257
			Total consolidated VIEs				11,036		10,155		-3,401		-7		6,747
				Total secured borrowings and consolidated VIEs		$	30,646		27,419		-17,479		-7		9,933
	31-Dec-12
	Secured borrowings:
		Municipal tender option bond securitizations				$	16,782		15,130		-13,248		-		1,882
		Commercial real estate loans					975		975		-696		-		279
		Residential mortgage securitizations					5,757		6,240		-5,824		-		416
			Total secured borrowings				23,514		22,345		-19,768		-		2,577
	Consolidated VIEs:
		Nonconforming residential
			mortgage loan securitizations				8,633		7,707		-2,933		-		4,774
		Multi-seller commercial paper conduit					2,059		2,036		-2,053		-		-17
		Structured asset finance					71		71		-17		-		54
		Investment funds					1,837		1,837		-2		-		1,835
		Other					3,454		2,974		-1,438		-48		1,488
			Total consolidated VIEs				16,054		14,625		-6,443		-48		8,134
				Total secured borrowings and consolidated VIEs		$	39,568		36,970		-26,211		-48		10,711

Mortgage_Banking_Activities_Ta

Mortgage Banking Activities (Tables)	9 Months Ended
	Sep. 30, 2013
Mortgage Banking Activities (Tables) [Abstract]	'
Changes In Mortgage Servicing Rights Carried at Fair Value	'
							Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Fair value, beginning of period					$	14,185	12,081		11,538	12,603
		Servicing from securitizations or asset transfers (1)					954	1,173		2,949	4,088
		Sales					-	-		-583	-293
			Net additions				954	1,173		2,366	3,795
		Changes in fair value:
			Due to changes in valuation model inputs or assumptions:
				Mortgage interest rates (2)			61	-1,131		3,314	-2,480
				Servicing and foreclosure costs (3)			-34	-350		-174	-550
				Discount rates (4)			-	-		-	-344
				Prepayment estimates and other (5)			-240	54		-725	158
					Net changes in valuation model inputs or assumptions		-213	-1,427		2,415	-3,216
			Other changes in fair value (6)				-425	-871		-1,818	-2,226
				Total changes in fair value			-638	-2,298		597	-5,442
	Fair value, end of period					$	14,501	10,956		14,501	10,956
	Nine months ended September 30, 2012, includes $315 million residential MSRs transferred from amortized MSRs that we elected to carry at fair value effective January 1, 2012.
	Primarily represents prepayment speed changes due to changes in mortgage interest rates, but also includes other valuation changes due to changes in mortgage interest rates (such as changes in estimated interest earned on custodial deposit balances).
	Includes costs to service and unreimbursed foreclosure costs.
	Reflects discount rate assumption change, excluding portion attributable to changes in mortgage interest rates; the nine months ended September 30, 2012, change reflects increased capital return requirements from market participants.
	Represents changes driven by other valuation model inputs or assumptions including prepayment speed estimation changes and other assumption updates.
	Prepayment speed estimation changes are influenced by observed changes in borrower behavior that occur independent of interest rate changes.
	Represents changes due to collection/realization of expected cash flows over time.
Changes In Amortized Mortgage Servicing Rights	'
						Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)					2013	2012		2013	2012
	Balance, beginning of period				$	1,176	1,130		1,160	1,445
		Purchases				59	42		112	134
		Servicing from securitizations or asset transfers (1)				32	30		119	-263
		Amortization				-63	-58		-187	-172
	Balance, end of period					1,204	1,144		1,204	1,144
	Valuation allowance:
	Balance, beginning of period					-	-		-	-37
		Reversal of provision for MSRs in excess of fair value (1)				-	-		-	37
	Balance, end of period (2)					-	-		-	-
	Amortized MSRs, net				$	1,204	1,144		1,204	1,144
	Fair value of amortized MSRs (3):
		Beginning of period			$	1,533	1,450		1,400	1,756
		End of period				1,525	1,399		1,525	1,399
	Nine months ended September 30, 2012, is net of $350 million ($313 million after valuation allowance) of residential MSRs that we elected to carry at fair value effective January 1, 2012. A cumulative adjustment of $2 million to fair value was recorded in retained earnings at January 1, 2012.
	Commercial amortized MSRs are evaluated for impairment purposes by the following risk strata: agency (GSEs) and non-agency. There was no valuation allowance recorded for the periods presented on the commercial amortized MSRs. Residential amortized MSRs are evaluated for impairment purposes by the following risk strata: mortgages sold to GSEs (FHLMC and FNMA) and mortgages sold to GNMA, each by interest rate stratifications. For nine months ended September 30, 2012, valuation allowance of $37 million for residential MSRs was reversed upon election to carry at fair value.
	Represent commercial amortized MSRs. The beginning of period balance for nine months ended September 30, 2012 also includes fair value of $316 million in residential amortized MSRs.
Components of Managed Servicing Portfolio	'
							Sept. 30,		Dec. 31,
	(in billions)						2013		2012
	Residential mortgage servicing:
		Serviced for others				$	1,494		1,498
		Owned loans serviced					344		368
		Subservicing					6		7
			Total residential servicing				1,844		1,873
	Commercial mortgage servicing:
		Serviced for others					416		408
		Owned loans serviced					106		106
		Subservicing					11		13
			Total commercial servicing				533		527
				Total managed servicing portfolio		$	2,377		2,400
	Total serviced for others					$	1,910		1,906
	Ratio of MSRs to related loans serviced for others						0.82	%	0.67
Components of Mortgage Banking Noninterest Income	'
									Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)								2013	2012		2013	2012
	Servicing income, net:
		Servicing fees:
			Contractually specified servicing fees					$	1,108	1,136		3,335	3,448
			Late charges						56	66		174	195
			Ancillary fees						91	89		258	229
			Unreimbursed direct servicing costs (1)						-289	-307		-774	-807
				Net servicing fees					966	984		2,993	3,065
		Changes in fair value of MSRs carried at fair value:
			Due to changes in valuation model inputs or assumptions (2)						-213	-1,427		2,415	-3,216
			Other changes in fair value (3)						-425	-871		-1,818	-2,226
				Total changes in fair value of MSRs carried at fair value					-638	-2,298		597	-5,442
		Amortization							-63	-58		-187	-172
		Net derivative gains (losses) from economic hedges (4)							239	1,569		-2,192	3,677
					Total servicing income, net				504	197		1,211	1,128
	Net gains on mortgage loan origination/sales activities								1,104	2,610		5,993	7,442
						Total mortgage banking noninterest income		$	1,608	2,807		7,204	8,570
	Market-related valuation changes to MSRs, net of hedge results (2) + (4)							$	26	142		223	461
	Primarily associated with foreclosure expenses and other interest costs.
	Refer to the changes in fair value of MSRs table in this Note for more detail.
	Represents changes due to collection/realization of expected cash flows over time.
	Represents results from free-standing derivatives (economic hedges) used to hedge the risk of changes in fair value of MSRs. See Note 12 – Free-Standing Derivatives for additional discussion and detail.
Liability for Mortgage Loan Repurchase Losses	'
							Quarter			Nine months
							ended Sept. 30,			ended Sept. 30,
	(in millions)						2013	2012		2013	2012
	Balance, beginning of period					$	2,222	1,764		2,206	1,326
		Provision for
			repurchase losses:
			Loan sales				28	75		127	209
			Change in estimate (1)				-	387		275	1,352
				Total additions			28	462		402	1,561
		Losses (2)					-829	-193		-1,187	-854
	Balance, end of period					$	1,421	2,033		1,421	2,033
	Results from such factors as changes in investor demand and mortgage insurer practices, credit deterioration, and changes in the financial stability of correspondent lenders.
	Quarter and nine months ended September 30, 2013, reflect $746 million as a result of the settlement reached with FHLMC that resolved substantially all repurchase liabilities associated with loans sold to FHLMC prior to January 1, 2009.

Intangible_Assets_Tables

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Intangible Assets (Tables) [Abstract]	'
Gross Carrying Value of Intangible Assets And Accumulated Amortization	'
						30-Sep-13						31-Dec-12
							Gross			Net		Gross			Net
							carrying	Accumulated		carrying		carrying	Accumulated		carrying
	(in millions)						value	amortization		value		value	amortization		value
	Amortized intangible assets (1):
		MSRs (2)				$	2,548		-1,344	1,204		2,317		-1,157	1,160
		Core deposit intangibles					12,834		-7,850	4,984		12,836		-6,921	5,915
		Customer relationship and other intangibles					3,146		-1,995	1,151		3,147		-1,795	1,352
			Total amortized intangible assets			$	18,528		-11,189	7,339		18,300		-9,873	8,427
	Unamortized intangible assets:
		MSRs (carried at fair value) (2)				$	14,501					11,538
		Goodwill					25,637					25,637
		Trademark					14					14
	Excludes fully amortized intangible assets.
	See Note 8 for additional information on MSRs.
Amortization Expense for Intangible Assets	'
						Customer
					Core	relationship
			Amortized		deposit	and other
	(in millions)		MSRs	intangibles		intangibles			Total
	Nine months ended September 30, 2013 (actual)	$	187		932		200		1,319
	Estimate for the remainder of 2013	$	63		310		66		439
	Estimate for year ended December 31,
	2014		228		1,113		250		1,591
	2015		197		1,022		227		1,446
	2016		162		919		212		1,293
	2017		121		851		194		1,166
	2018		88		769		184		1,041
Allocation of Goodwill to Operating Segments	'
									Wealth,
					Community		Wholesale	Brokerage and		Consolidated
	(in millions)				Banking		Banking		Retirement		Company
	31-Dec-11			$	17,924		6,820		371		25,115
		Goodwill from business combinations			-2		524		-		522
	30-Sep-12			$	17,922		7,344		371		25,637
	December 31, 2012 and September 30, 2013			$	17,922		7,344		371		25,637

Guarantees_Pledged_Assets_and_1

Guarantees, Pledged Assets and Collateral (Tables)	9 Months Ended
	Sep. 30, 2013
Guarantees (Tables) [Abstract]	'
Schedule of Guarantor Obligations	'
					30-Sep-13
						Maximum exposure to loss
							Expires after	Expires after
						Expires in	one year	three years	Expires		Non-
					Carrying	one year	through	through	after five		investment
	(in millions)				value	or less	three years	five years	years	Total	grade
	Standby letters of credit (1)			$	54	15,659	12,211	3,930	2,719	34,519	9,039
	Securities lending and
		other indemnifications			-	2	7	37	3,236	3,282	40
	Liquidity agreements (2)				-	-	-	-	14	14	4
	Written put options (3)				981	3,766	4,465	2,375	2,495	13,101	4,409
	Loans and MHFS sold with recourse				87	109	464	813	4,963	6,349	3,654
	Contingent consideration				31	16	96	-	-	112	110
	Other guarantees				3	982	30	17	1,029	2,058	3
		Total guarantees		$	1,156	20,534	17,273	7,172	14,456	59,435	17,259
					31-Dec-12
						Maximum exposure to loss
							Expires after	Expires after
						Expires in	one year	three years			Non-
					Carrying	one year	through	through	Expires after		investment
	(in millions)				value	or less	three years	five years	five years	Total	grade
	Standby letters of credit (1)			$	42	19,463	11,782	6,531	1,983	39,759	11,331
	Securities lending and
		other indemnifications			-	3	7	20	2,511	2,541	118
	Liquidity agreements (2)				-	-	-	-	3	3	3
	Written put options (2)(3)				1,427	2,951	3,873	2,475	2,575	11,874	3,953
	Loans and MHFS sold with recourse				99	443	357	647	4,426	5,873	3,905
	Contingent consideration				35	11	24	94	-	129	129
	Other guarantees				3	677	26	1	717	1,421	4
		Total guarantees		$	1,606	23,548	16,069	9,768	12,215	61,600	19,443
	Total maximum exposure to loss includes direct pay letters of credit (DPLCs) of $16.4 billion and $18.5 billion at September 30, 2013 and December 31, 2012, respectively. We issue DPLCs to provide credit enhancements for certain bond issuances. Beneficiaries (bond trustees) may draw upon these instruments to make scheduled principal and interest payments, redeem all outstanding bonds because a default event has occurred, or for other reasons as permitted by the agreement. We also originate multipurpose lending commitments under which borrowers have the option to draw on the facility in one of several forms, including as a standby letter of credit. Total maximum exposure to loss includes the portion of these facilities for which we have issued standby letters of credit under the commitments.
	Certain of these agreements included in this table are related to off-balance sheet entities and, accordingly, are also disclosed in Note 7.
	Written put options, which are in the form of derivatives, are also included in the derivative disclosures in Note 12.
Significant Components of Assets Pledged	'
					Sept. 30,		Dec. 31,
	(in millions)				2013		2012
	Trading assets and other (1)			$	33,808		28,031
	Securities available for sale (2)				99,291		96,018
	Loans (3)				378,004		360,171
		Total pledged assets		$	511,103		484,220
	-1	Represent assets pledged to collateralize repurchase agreements and other securities financings. Balance includes $32.5 billion and $27.4 billion at September 30, 2013, and December 31, 2012, respectively, under agreements that permit the secured parties to sell or repledge the collateral.
	-2	Includes $8.3 billion and $8.4 billion in collateral for repurchase agreements at September 30, 2013, and December 31, 2012, respectively, which are pledged under agreements that do not permit the secured parties to sell or repledge the collateral.
	-3	Represent loans carried at amortized cost, which are pledged under agreements that do not permit the secured parties to sell or repledge the collateral.
Offsetting of Resale and Repurchase Agreements and Securities Borrowing and Lending	'
					Sept. 30,		Dec. 31,
	(in millions)				2013		2012
	Assets:
	Resale and securities borrowing agreements
			Gross amounts recognized	$	43,325		45,847
			Gross amounts offset in consolidated balance sheet (1)		-5,101		-2,561
			Net amounts in consolidated balance sheet (2)		38,224		43,286
			Noncash collateral not recognized in consolidated balance sheet (3)		-37,920		-42,920
		Net amount (4)		$	304		366
	Liabilities:
	Repurchase and securities lending agreements
			Gross amounts recognized	$	41,208		35,876
			Gross amounts offset in consolidated balance sheet (1)		-5,101		-2,561
			Net amounts in consolidated balance sheet (5)		36,107		33,315
			Noncash collateral pledged but not netted in consolidated balance sheet (6)		-35,677		-33,050
		Net amount (7)		$	430		265
	-1	Represents recognized amount of resale and repurchase agreements with counterparties subject to enforceable MRAs or MSLAs that have been offset in the consolidated balance sheet.
	-2	At September 30, 2013 and December 31, 2012, includes $27.0 billion and $33.8 billion, respectively, classified on our consolidated balance sheet in Federal funds sold, securities purchased under resale agreements and other short-term investments and $11.2 billion and $9.5 billion, respectively, in Loans.
	-3	Represents the fair value of non-cash collateral we have received under enforceable MRAs or MSLAs, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. At September 30, 2013 and December 31, 2012, we have received total collateral with a fair value of $48.2 billion and $46.6 billion, respectively, all of which, we have the right to sell or repledge. These amounts include securities we have sold or repledged to others with a fair value of $27.5 billion at September 30, 2013 and $29.7 billion at December 31, 2012.
	-4	Represents the amount of our exposure that is not collateralized and/or is not subject to an enforceable MRA or MSLA.
	-5	Amount is classified in Short-Term Borrowings on our consolidated balance sheet.
	-6	Represents the fair value of non-cash collateral we have pledged, related to enforceable MRAs or MSLAs, limited for table presentation purposes to the amount of the recognized liability owed to each counterparty. At September 30, 2013 and December 31, 2012, we have pledged total collateral with a fair value of $42.1 billion and $36.4 billion, respectively, of which, the counterparty does not have the right to sell or repledge $9.6 billion as of September 30 2013 and $9.1 billion as of December 31, 2012.
	-7	Represents the amount of our exposure that is not covered by pledged collateral and/or is not subject to an enforceable MRA or MSLA.

Derivatives_Tables

Derivatives (Tables)	9 Months Ended
	Sep. 30, 2013
Derivatives (Tables) [Abstract]	'
Total Notional or Contractual Amounts and Fair Values for Derivatives	'
								30-Sep-13						31-Dec-12
							Notional or				Fair value		Notional or		Fair value
							contractual				Asset	Liability	contractual		Asset	Liability
	(in millions)							amount		derivatives		derivatives		amount	derivatives	derivatives
	Derivatives designated as hedging instruments
		Interest rate contracts (1)					$	91,455			5,022	2,409		92,004	7,284	2,696
		Foreign exchange contracts						27,429			1,390	597		27,382	1,808	274
	Total derivatives designated as
		qualifying hedging instruments									6,412	3,006			9,092	2,970
	Derivatives not designated as hedging instruments
		Free-standing derivatives (economic hedges):
			Interest rate contracts (2)					257,974			1,895	1,434		334,555	450	694
			Equity contracts					2,396			273	154		75	-	50
			Foreign exchange contracts					13,052			77	307		3,074	3	64
			Credit contracts - protection purchased					1			-	2		16	-	-
			Other derivatives					2,131			-	24		2,296	-	78
				Subtotal							2,245	1,921			453	886
		Customer accommodation, trading and other
			free-standing derivatives:
			Interest rate contracts					3,486,515			49,067	51,471		2,774,783	63,617	65,305
			Commodity contracts					99,926			3,041	2,937		90,732	3,456	3,590
			Equity contracts					78,950			5,163	5,484		71,958	3,783	4,114
			Foreign exchange contracts					176,214			3,629	3,432		166,061	3,713	3,241
			Credit contracts - protection sold					20,558			302	1,776		26,455	315	2,623
			Credit contracts - protection purchased					23,652			1,080	323		29,021	1,495	329
				Subtotal							62,282	65,423			76,379	79,202
	Total derivatives not designated as hedging instruments										64,527	67,344			76,832	80,088
	Total derivatives before netting										70,939	70,350			85,924	83,058
	Netting (3)										-54,567	-61,375			-62,108	-71,116
					Total					$	16,372	8,975			23,816	11,942
	Notional amounts presented exclude $2.7 billion at September 30, 2013, and $4.7 billion at December 31, 2012, of certain derivatives that are combined for designation as a hedge on a single instrument.
	Includes free-standing derivatives (economic hedges) used to hedge the risk of changes in the fair value of residential MSRs, MHFS, loans and other interests held.
	Represents balance sheet netting of derivative asset and liability balances, and related cash collateral. See the next table in this Note for further information.
Balance Sheet Offsetting of Derivative Assets and Liabilities	'
										Gross amounts
								Gross amounts		not offset in
								offset in	Net amounts in	consolidated		Percent
								consolidated	consolidated	balance sheet		exchanged in
						Gross amounts		balance	balance	(Disclosure-only		over-the-counter
	(in millions)						recognized	sheet (1)	sheet (2)	netting) (3)	Net amounts	market (4)
	30-Sep-13
	Derivative assets
		Interest rate contracts				$	55,984	-45,955	10,029	-963	9,066	74	%
		Commodity contracts					3,041	-732	2,309	-67	2,242	47
		Equity contracts					5,436	-2,736	2,700	-109	2,591	88
		Foreign exchange contracts					5,096	-4,002	1,094	-16	1,078	100
		Credit contracts-protection sold					302	-259	43	-	43	96
		Credit contracts-protection purchased					1,080	-883	197	-34	163	100
			Total derivative assets			$	70,939	-54,567	16,372	-1,189	15,183
	Derivative liabilities
		Interest rate contracts				$	55,314	-52,268	3,046	-192	2,854	73	%
		Commodity contracts					2,937	-1,153	1,784	-	1,784	75
		Equity contracts					5,638	-2,995	2,643	-134	2,509	94
		Foreign exchange contracts					4,336	-2,988	1,348	-	1,348	100
		Credit contracts-protection sold					1,776	-1,688	88	-	88	100
		Credit contracts-protection purchased					325	-283	42	-	42	92
		Other contracts					24	-	24	-	24	100
			Total derivative liabilities			$	70,350	-61,375	8,975	-326	8,649
	31-Dec-12
	Derivative assets
		Interest rate contracts				$	71,351	-53,708	17,643	-2,692	14,951	94	%
		Commodity contracts					3,456	-1,080	2,376	-27	2,349	48
		Equity contracts					3,783	-2,428	1,355	-	1,355	89
		Foreign exchange contracts					5,524	-3,449	2,075	-105	1,970	100
		Credit contracts-protection sold					315	-296	19	-4	15	100
		Credit contracts-protection purchased					1,495	-1,147	348	-56	292	100
			Total derivative assets			$	85,924	-62,108	23,816	-2,884	20,932
	Derivative liabilities
		Interest rate contracts				$	68,695	-62,559	6,136	-287	5,849	92	%
		Commodity contracts					3,590	-1,394	2,196	-	2,196	79
		Equity contracts					4,164	-2,618	1,546	-	1,546	95
		Foreign exchange contracts					3,579	-1,804	1,775	-55	1,720	100
		Credit contracts-protection sold					2,623	-2,450	173	-	173	100
		Credit contracts-protection purchased					329	-291	38	-	38	100
		Other contracts					78	-	78	-	78	100
			Total derivative liabilities			$	83,058	-71,116	11,942	-342	11,600
	-1	Represents amounts with counterparties subject to enforceable master netting arrangements that have been offset in the consolidated balance sheet, including related cash collateral and portfolio level counterparty valuation adjustments. Counterparty valuation adjustments were $293 million and $352 million related to derivative assets and $81 million and $68 million related to derivative liabilities as of September 30, 2013, and December 31, 2012, respectively. Cash collateral totaled $4.9 billion and $12.0 billion, netted against derivative assets and liabilities, respectively, at September 30, 2013, and $5.0 billion and $14.5 billion, respectively, at December 31, 2012.
	-2	Net derivative assets of $13.4 billion and $18.3 billion are classified in Trading assets as of September 30, 2013, and December 31, 2012, respectively. $3.0 billion and $5.5 billion are classified in Other assets in the consolidated balance sheet as of September 30, 2013, and December 31, 2012, respectively. Net derivative liabilities are classified in Accrued expenses and other liabilities in the consolidated balance sheet.
	-3	Represents non-cash collateral pledged and received against derivative assets and liabilities with the same counterparty that are subject to enforceable master netting arrangements. U.S. GAAP does not permit netting of such non-cash collateral balances in the consolidated balance sheet but requires disclosure of these amounts.
	-4	Calculated based on Gross amounts recognized as of the respective balance sheet date. The remaining percentage represents exchange-traded derivatives and derivatives cleared through central clearinghouses.
Net Gains (Losses) Recognized in the Income Statement Related to Derivatives in Fair Value Hedging Relationships	'
							Interest rate				Foreign exchange		Total net
							contracts hedging:				contracts hedging:		gains
													(losses)
							Securities	Mortgages			Securities		on fair
							available	held for	Long-term		available	Long-term	value
	(in millions)						for sale	sale	debt		for sale	debt	hedges
	Quarter ended September 30, 2013
	Net interest income (expense) recognized on derivatives					$	-155	-10	413		-2	69	315
	Gains (losses) recorded in noninterest income
		Recognized on derivatives					165	45	-406		-273	687	218
		Recognized on hedged item					-174	-42	349		271	-678	-274
			Net recognized on fair value hedges (ineffective portion) (1)			$	-9	3	-57		-2	9	-56
	Quarter ended September 30, 2012
	Net interest income (expense) recognized on derivatives					$	-115	-	415		-	55	355
	Gains (losses) recorded in noninterest income
		Recognized on derivatives					-19	-7	-67		-115	502	294
		Recognized on hedged item					24	4	26		130	-515	-331
			Net recognized on fair value hedges (ineffective portion) (1)			$	5	-3	-41		15	-13	-37
	Nine months ended September 30, 2013
	Net interest income (expense) recognized on derivatives					$	-416	-7	1,205		-4	206	984
	Gains (losses) recorded in noninterest income
		Recognized on derivatives					1,368	36	-2,800		39	-693	-2,050
		Recognized on hedged item					-1,352	-43	2,613		-32	650	1,836
			Net recognized on fair value hedges (ineffective portion) (1)			$	16	-7	-187		7	-43	-214
	Nine months ended September 30, 2012
	Net interest income (expense) recognized on derivatives					$	-340	1	1,281		-4	186	1,124
	Gains (losses) recorded in noninterest income
		Recognized on derivatives					-229	-13	267		71	351	447
		Recognized on hedged item					222	6	-186		-32	-393	-383
			Net recognized on fair value hedges (ineffective portion) (1)			$	-7	-7	81		39	-42	64
	The third quarter and first nine months of 2013 included $(1) million and $(5) million, respectively, and the third quarter and first nine months of 2012 included $(3) million and $(5) million, respectively, of the time value component recognized as net interest income (expense) on forward derivatives hedging foreign currency long-term debt that were excluded from the assessment of hedge effectiveness.
Net Gains (Losses) Recognized Related to Derivatives in Cash Flow Hedging Relationships	'
							Quarter		Nine months
					ended September 30,				ended September 30,
	(in millions)					2013	2012		2013	2012
	Gains (losses) (pre tax) recognized in OCI on derivatives				$	-7	24		-10	63
	Gains (pre tax) reclassified from cumulative OCI into net income (1)					69	89		225	295
	Gains (losses) (pre tax) recognized in noninterest income for hedge ineffectiveness (2)					-1	-1		-	-2
	See Note 17 for detail on components of net income.
	None of the change in value of the derivatives was excluded from the assessment of hedge effectiveness.
Net Gains (Losses) Recognized in the Income Statement Related to Derivatives not Designated as Hedging Instruments	'
								Quarter			Nine months
								ended Sept. 30,			ended Sept. 30,
	(in millions)							2013	2012		2013	2012
	Net gains (losses) recognized on free-standing derivatives (economic hedges):
		Interest rate contracts
			Recognized in noninterest income:
				Mortgage banking (1)			$	109	-1,356		1,837	-2,182
				Other (2)				-3	-7		95	-40
		Equity contracts (3)						-50	-		-88	1
		Foreign exchange contracts (2)						-227	-37		-207	-38
		Credit contracts (2)						-	-3		-6	-13
						Subtotal		-171	-1,403		1,631	-2,272
	Net gains (losses) recognized on customer accommodation, trading
		and other free-standing derivatives:
			Interest rate contracts
				Recognized in noninterest income:
					Mortgage banking (4)			210	2,794		-696	6,336
					Other (5)			-13	136		568	466
			Commodity contracts (5)					52	-72		276	-116
			Equity contracts (5)					-153	99		-410	20
			Foreign exchange contracts (5)					69	131		484	380
			Credit contracts (5)					-11	-29		-31	-18
						Subtotal		154	3,059		191	7,068
		Net gains recognized related to derivatives not designated
			as hedging instruments				$	-17	1,656		1,822	4,796
	Predominantly mortgage banking noninterest income including gains (losses) on the derivatives used as economic hedges of MSRs measured at fair value, interest rate lock commitments and mortgages held for sale.
	Predominantly included in other noninterest income.
	Predominantly included in net gains (losses) from equity investments.
	Predominantly mortgage banking noninterest income including gains (losses) on interest rate lock commitments.
	Predominantly included in net gains from trading activities in noninterest income.
Details of Sold and Purchased Credit Derivatives	'
								Notional amount
									Protection		Protection
									sold -		purchased	Net
									non-		with	protection	Other
							Fair value	Protection	investment		identical	sold	protection	Range of
	(in millions)						liability	sold (A)	grade	underlyings (B)		(A) - (B)	purchased	maturities
	30-Sep-13
	Credit default swaps on:
		Corporate bonds				$	69	11,355	5,953		6,120	5,235	6,759	2013-2021
		Structured products					1,254	1,753	1,419		753	1,000	356	2016-2056
	Credit protection on:
		Default swap index					1	3,064	303		2,871	193	618	2014-2018
		Commercial mortgage-
			backed securities index				401	1,149	214		570	579	618	2049-2052
		Asset-backed securities index					50	57	57		3	54	88	2037-2046
	Other						1	3,180	3,167		13	3,167	4,883	2013-2056
		Total credit derivatives				$	1,776	20,558	11,113		10,330	10,228	13,322
	31-Dec-12
	Credit default swaps on:
		Corporate bonds				$	240	15,845	8,448		9,636	6,209	7,701	2013-2021
		Structured products					1,787	2,433	2,039		948	1,485	393	2016-2056
	Credit protection on:
		Default swap index					4	3,520	348		3,444	76	616	2013-2017
		Commercial mortgage-backed securities index					531	1,249	861		790	459	524	2049-2052
		Asset-backed securities index					57	64	64		6	58	92	2037-2046
	Other						4	3,344	3,344		106	3,238	4,655	2013-2056
		Total credit derivatives				$	2,623	26,455	15,104		14,930	11,525	13,981

Fair_Values_of_Assets_and_Liab1

Fair Values of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Values of Assets and Liabilities (Tables) [Abstract]	'
Fair Value, Measurements from Brokers or Third Party Pricing Services	'
									Brokers				Third party pricing services
	(in millions)								Level 1	Level 2	Level 3		Level 1	Level 2	Level 3
	30-Sep-13
	Trading assets (excluding derivatives)							$	-	311	6		1,540	918	-
	Securities available for sale:
		Securities of U.S. Treasury and federal agencies							-	-	-		566	5,840	-
		Securities of U.S. states and political subdivisions							-	-	-		-	38,584	63
		Mortgage-backed securities							-	1,491	1		-	149,424	273
		Other debt securities (1)							-	15,476	3,065		-	27,827	70
			Total debt securities						-	16,967	3,066		566	221,675	406
			Total marketable equity securities						-	-	-		8	625	-
				Total securities available for sale					-	16,967	3,066		574	222,300	406
	Derivatives (trading and other assets)								-	5	-		-	481	2
	Derivatives (liabilities)								-	-18	-		-	-486	-
	Other liabilities								-	-140	-		-	-49	-
	31-Dec-12
	Trading assets (excluding derivatives)							$	-	406	8		1,314	1,016	-
	Securities available for sale:
		Securities of U.S. Treasury and federal agencies							-	-	-		915	6,231	-
		Securities of U.S. states and political subdivisions							-	-	-		-	35,036	-
		Mortgage-backed securities							-	138	4		-	121,703	292
		Other debt securities (1)							-	1,516	12,465		-	28,314	149
			Total debt securities						-	1,654	12,469		915	191,284	441
			Total marketable equity securities						-	3	-		29	774	-
				Total securities available for sale					-	1,657	12,469		944	192,058	441
	Derivatives (trading and other assets)								-	8	-		-	602	-
	Derivatives (liabilities)								-	-26	-		-	-634	-
	Other liabilities								-	-121	-		-	-104	-
	-1	Includes corporate debt securities, collateralized loan and other debt obligations, asset-backed securities, and other debt securities.
Assets and Liabilities Recorded at Fair Value on a Recurring Basis	'
	(in millions)								Level 1	Level 2	Level 3		Netting		Total
	30-Sep-13
	Trading assets (excluding derivatives)
		Securities of U.S. Treasury and federal agencies						$	8,443	4,319	-		-		12,762
		Securities of U.S. states and political subdivisions							-	2,252	39		-		2,291
		Collateralized loan and other debt obligations (1)							-	217	543		-		760
		Corporate debt securities							-	8,052	36		-		8,088
		Mortgage-backed securities							-	12,623	1		-		12,624
		Asset-backed securities							3	768	100		-		871
		Equity securities							4,521	76	-		-		4,597
			Total trading securities(2)						12,967	28,307	719		-		41,993
		Other trading assets							2,478	2,306	60		-		4,844
				Total trading assets (excluding derivatives)					15,445	30,613	779		-		46,837
	Securities of U.S. Treasury and federal agencies								566	5,840	-		-		6,406
	Securities of U.S. states and political subdivisions								-	38,650	3,643	-3	-		42,293
	Mortgage-backed securities:
		Federal agencies							-	118,963	-		-		118,963
		Residential							-	13,436	88		-		13,524
		Commercial							-	18,617	188		-		18,805
			Total mortgage-backed securities						-	151,016	276		-		151,292
	Corporate debt securities								113	20,851	234		-		21,198
	Collateralized loan and other debt obligations(4)								-	14,390	3,386	-3	-		17,776
	Asset-backed securities:
		Auto loans and leases							-	17	5,174	-3	-		5,191
		Home equity loans							-	831	-		-		831
		Other asset-backed securities							-	6,870	3,211	-3	-		10,081
			Total asset-backed securities						-	7,718	8,385		-		16,103
	Other debt securities								-	751	-		-		751
				Total debt securities					679	239,216	15,924		-		255,819
	Marketable equity securities:
		Perpetual preferred securities (5)							536	622	740	-3	-		1,898
		Other marketable equity securities							1,672	10	-		-		1,682
				Total marketable equity securities					2,208	632	740		-		3,580
					Total securities available for sale				2,887	239,848	16,664		-		259,399
	Mortgages held for sale								-	20,776	2,433		-		23,209
	Loans held for sale								-	2	-		-		2
	Loans								-	246	5,805		-		6,051
	Mortgage servicing rights (residential)								-	-	14,501		-		14,501
	Derivative assets:
		Interest rate contracts							33	55,363	588		-		55,984
		Commodity contracts							-	3,018	23		-		3,041
		Equity contracts							648	3,580	1,208		-		5,436
		Foreign exchange contracts							30	5,061	5		-		5,096
		Credit contracts							-	819	563		-		1,382
		Other derivative contracts							-	-	-		-		-
			Netting						-	-	-		-54,567	-6	-54,567
				Total derivative assets (7)					711	67,841	2,387		-54,567		16,372
	Other assets								50	4	1,038		-		1,092
						Total assets recorded at fair value		$	19,093	359,330	43,607		-54,567		367,463
	Derivative liabilities:
		Interest rate contracts						$	-47	-54,933	-334		-		-55,314
		Commodity contracts							-	-2,918	-19		-		-2,937
		Equity contracts							-332	-4,173	-1,133		-		-5,638
		Foreign exchange contracts							-29	-4,306	-1		-		-4,336
		Credit contracts							-	-842	-1,259		-		-2,101
		Other derivative contracts							-	-	-24		-		-24
			Netting						-	-	-		61,375	-6	61,375
				Total derivative liabilities (7)					-408	-67,172	-2,770		61,375		-8,975
	Short sale liabilities:
		Securities of U.S. Treasury and federal agencies							-6,284	-1,934	-		-		-8,218
		Securities of U.S. states and political subdivisions							-	-18	-		-		-18
		Corporate debt securities							-	-4,556	-		-		-4,556
		Equity securities							-1,728	-25	-		-		-1,753
	Other securities							-	-42	-		-		-42
		Total short sale liabilities						-8,012	-6,575	-		-		-14,587
Other liabilities								-	-	-41		-		-41
					Total liabilities recorded at fair value		$	-8,420	-73,747	-2,811		61,375		-23,603
Includes collateralized debt obligations of $5 million.
Net gains (losses) from trading activities recognized in the income statement for the nine months ended September 30, 2013 and 2012, include $(215) million and $464 million in net unrealized gains (losses) on trading securities held at September 30, 2013 and 2012, respectively.
Balances consist of securities that are predominantly investment grade based on ratings received from the ratings agencies or internal credit grades categorized as investment grade if external ratings are not available. The securities are classified as Level 3 due to limited market activity.
Includes collateralized debt obligations of $700 million.
Perpetual preferred securities include ARS and corporate preferred securities. See Note 7 for additional information.
Derivatives are reported net of cash collateral received and paid and, to the extent that the criteria of the accounting guidance covering the offsetting of amounts related to certain contracts are met, positions with the same counterparty are netted as part of a legally enforceable master netting agreement.
Derivative assets and derivative liabilities include contracts qualifying for hedge accounting, economic hedges, and derivatives included in trading assets and trading liabilities, respectively.
(continued from previous page)
(in millions)								Level 1	Level 2	Level 3		Netting		Total
31-Dec-12
Trading assets (excluding derivatives)
	Securities of U.S. Treasury and federal agencies						$	5,104	3,774	-		-		8,878
	Securities of U.S. states and political subdivisions							-	1,587	46		-		1,633
	Collateralized loan and other debt obligations (1)							-	-	742		-		742
	Corporate debt securities							-	6,664	52		-		6,716
	Mortgage-backed securities							-	13,380	6		-		13,386
	Asset-backed securities							-	722	138		-		860
	Equity securities							3,481	356	3		-		3,840
		Total trading securities(2)						8,585	26,483	987		-		36,055
	Other trading assets							2,150	887	76		-		3,113
			Total trading assets (excluding derivatives)					10,735	27,370	1,063		-		39,168
Securities of U.S. Treasury and federal agencies								915	6,231	-		-		7,146
Securities of U.S. states and political subdivisions								-	35,045	3,631	-3	-		38,676
Mortgage-backed securities:
	Federal agencies							-	97,285	-		-		97,285
	Residential							-	15,837	94		-		15,931
	Commercial							-	19,765	203		-		19,968
		Total mortgage-backed securities						-	132,887	297		-		133,184
Corporate debt securities								125	20,934	274		-		21,333
Collateralized loan and other debt obligations (4)								-	-	13,188	-3	-		13,188
Asset-backed securities:
	Auto loans and leases							-	7	5,921	-3	-		5,928
	Home equity loans							-	867	51		-		918
	Other asset-backed securities							-	7,828	3,283	-3	-		11,111
		Total asset-backed securities						-	8,702	9,255		-		17,957
Other debt securities								-	930	-		-		930
			Total debt securities					1,040	204,729	26,645		-		232,414
Marketable equity securities:
	Perpetual preferred securities (5)							629	753	794	-3	-		2,176
	Other marketable equity securities							554	55	-		-		609
			Total marketable equity securities					1,183	808	794		-		2,785
				Total securities available for sale				2,223	205,537	27,439		-		235,199
Mortgages held for sale								-	39,055	3,250		-		42,305
Loans held for sale								-	6	-		-		6
Loans								-	185	6,021		-		6,206
Mortgage servicing rights (residential)								-	-	11,538		-		11,538
Derivative assets:
	Interest rate contracts							16	70,277	1,058		-		71,351
	Commodity contracts							-	3,386	70		-		3,456
	Equity contracts							432	2,747	604		-		3,783
	Foreign exchange contracts							19	5,481	24		-		5,524
	Credit contracts							-	1,160	650		-		1,810
	Other derivative contracts							-	-	-		-		-
		Netting						-	-	-		-62,108	-6	-62,108
			Total derivative assets (7)					467	83,051	2,406		-62,108		23,816
Other assets								136	123	162		-		421
					Total assets recorded at fair value		$	13,561	355,327	51,879		-62,108		358,659
Derivative liabilities:
	Interest rate contracts						$	-52	-68,244	-399		-		-68,695
	Commodity contracts							-	-3,541	-49		-		-3,590
	Equity contracts							-199	-3,239	-726		-		-4,164
	Foreign exchange contracts							-23	-3,553	-3		-		-3,579
	Credit contracts							-	-1,152	-1,800		-		-2,952
	Other derivative contracts							-	-	-78		-		-78
		Netting						-	-	-		71,116	-6	71,116
			Total derivative liabilities (7)					-274	-79,729	-3,055		71,116		-11,942
Short sale liabilities:
	Securities of U.S. Treasury and federal agencies							-4,225	-875	-		-		-5,100
	Securities of U.S. states and political subdivisions							-	-9	-		-		-9
	Corporate debt securities							-	-3,941	-		-		-3,941
	Equity securities							-1,233	-35	-		-		-1,268
	Other securities							-	-47	-		-		-47
		Total short sale liabilities						-5,458	-4,907	-		-		-10,365
Other liabilities								-	-34	-49		-		-83
					Total liabilities recorded at fair value		$	-5,732	-84,670	-3,104		71,116		-22,390
Includes collateralized debt obligations of $21 million.
Net gains from trading activities recognized in the income statement include $305 million in net unrealized gains on trading securities we held at December 31, 2012.
Balances consist of securities that are predominantly investment grade based on ratings received from the ratings agencies or internal credit grades categorized as investment grade if external ratings are not available. The securities are classified as Level 3 due to limited market activity.
Includes collateralized debt obligations of $644 million.
Perpetual preferred securities include ARS and corporate preferred securities. See Note 7 for additional information.
Derivatives are reported net of cash collateral received and paid and, to the extent that the criteria of the accounting guidance covering the offsetting of amounts related to certain contracts are met, positions with the same counterparty are netted as part of a legally enforceable master netting agreement.
Derivative assets and derivative liabilities include contracts qualifying for hedge accounting, economic hedges, and derivatives included in trading assets and trading liabilities, respectively.
Fair Value, Transfers Between Fair Value Levels	'
				Transfers Between Fair Value Levels
				Level 1			Level 2			Level 3 (1)
	(in millions)			In	Out		In	Out		In	Out	Total
	Quarter ended September 30, 2013
	Trading securities		$	-	-1		15	-14		15	-15	-
	Securities available for sale			-	-		12	-77		77	-12	-
	Mortgages held for sale			-	-		177	-77		77	-177	-
	Loans			-	-		48	-		-	-48	-
	Net derivative assets and liabilities (2)			-	-		-188	32		-32	188	-
	Short sale liabilities			-	-		-	-		-	-	-
		Total transfers	$	-	-1		64	-136		137	-64	-
	Quarter ended September 30, 2012
	Trading securities		$	23	-		6	-23		-	-6	-
	Securities available for sale (3)			-	-		5,417	-16		16	-5,417	-
	Mortgages held for sale			-	-		79	-127		127	-79	-
	Loans (4)			-	-		-	-5,851		5,851	-	-
	Net derivative assets and liabilities			-	-		84	-		-	-84	-
	Short sale liabilities			-29	-		-	29		-	-	-
		Total transfers	$	-6	-		5,586	-5,988		5,994	-5,586	-
	Nine months ended September 30, 2013
	Trading securities (5)		$	-	-247		483	-40		41	-237	-
	Securities available for sale (5)			17	-		10,853	-94		77	-10,853	-
	Mortgages held for sale			-	-		316	-255		255	-316	-
	Loans			-	-		154	-		-	-154	-
	Net derivative assets and liabilities			-	-		-139	32		-32	139	-
	Short sale liabilities			-	-		-	-		-	-	-
		Total transfers	$	17	-247		11,667	-357		341	-11,421	-
	Nine months ended September 30, 2012
	Trading securities		$	23	-		16	-37		14	-16	-
	Securities available for sale (3)			-	-		9,453	-73		73	-9,453	-
	Mortgages held for sale			-	-		229	-298		298	-229	-
	Loans (4)			-	-		-	-5,851		5,851	-	-
	Net derivative assets and liabilities			-	-		97	8		-8	-97	-
	Short sale liabilities			-29	-		-	29		-	-	-
		Total transfers	$	-6	-		9,795	-6,222		6,228	-9,795	-
	All transfers in and out of Level 3 are disclosed within the recurring Level 3 rollforward table in this Note.
	Consists of net derivative liabilities that were transferred from Level 3 to Level 2 due to increased observable market data. Also includes net derivative liabilities that were transferred from Level 2 to Level 3 in conjunction with a change in our valuation technique from an internal model with significant observable inputs to an internal model with significant unobservable inputs.
	Includes $5.2 billion and $9.1 billion of securities of U.S. states and political subdivisions that we transferred from Level 3 to Level 2 in third quarter and first nine months of 2012, respectively, as a result of increased observable market data in the valuation of such instruments. This transfer was done in conjunction with a change in our valuation technique from an internal model based upon unobservable inputs to third party vendor pricing based upon market observable data.
	Consists of reverse mortgage loans securitized with GNMA which were accounted for as secured borrowing transactions. We transferred the loans from Level 2 to Level 3 in third quarter 2012 due to decreased market activity and visibility to significant trades of the same or similar products. As a result, we changed our valuation technique from an internal model based on market observable data to an internal discounted cash flow model based on unobservable inputs.
	Consists of $202 million of collateralized loan obligations classified as trading assets and $10.6 billion classified as securities available for sale that we transferred from Level 3 to Level 2 in first quarter 2013 as a result of increased observable market data in the valuation of such instruments.
Fair Value, Assets and Liabilities Measured on Recurring Basis, Level 3 Reconciliation	'
																Net unrealized
										Total net gains		Purchases,				gains (losses)
										(losses) included in		sales,				included in
											Other	issuances				income related
									Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
								beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
	(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
	Quarter ended September 30, 2013
	Trading assets
		(excluding derivatives):
		Securities of U.S. states and
			political subdivisions					$	40	-	-	-1	-	-	39	-
		Collateralized loan and other debt obligations							495	10	-	38	-	-	543	7
		Corporate debt securities							14	2	-	5	15	-	36	1
		Mortgage-backed securities							9	-	-	7	-	-15	1	-
		Asset-backed securities							109	10	-	-19	-	-	100	20
		Equity securities							-	-	-	-	-	-	-	-
			Total trading securities						667	22	-	30	15	-15	719	28
		Other trading assets							63	-3	-	-	-	-	60	-1
				Total trading assets
					(excluding derivatives)				730	19	-	30	15	-15	779	27	-3
	Securities available for sale:
		Securities of U.S. states and
			political subdivisions						3,759	3	1	-162	53	-11	3,643	-
		Mortgage-backed securities:
			Residential						98	8	-2	-16	-	-	88	-
			Commercial						194	-2	3	-6	-	-1	188	-2
				Total mortgage-backed
					securities				292	6	1	-22	-	-1	276	-2
		Corporate debt securities							243	2	-9	-2	-	-	234	-
		Collateralized loan and other debt obligations							3,227	-2	16	145	-	-	3,386	-
		Asset-backed securities:
			Auto loans and leases						4,872	1	-3	304	-	-	5,174	-
			Home equity loans						-	-	-	-	-	-	-	-
			Other asset-backed securities						2,948	2	29	208	24	-	3,211	-
				Total asset-backed securities					7,820	3	26	512	24	-	8,385	-
					Total debt securities				15,341	12	35	471	77	-12	15,924	-2	-4
		Marketable equity securities:
			Perpetual preferred securities						788	3	-36	-15	-	-	740	-
			Other marketable equity securities						-	-	-	-	-	-	-	-
					Total marketable
						equity securities			788	3	-36	-15	-	-	740	-	-5
						Total securities
							available for sale		16,129	15	-1	456	77	-12	16,664	-2
	Mortgages held for sale								2,641	4	-	-112	77	-177	2,433	5	-6
	Loans								5,860	-17	-	10	-	-48	5,805	-13	-6
	Mortgage servicing rights								14,185	-638	-	954	-	-	14,501	-213	-6
	Net derivative assets and liabilities:
		Interest rate contracts							-561	224	-	591	-	-	254	220
		Commodity contracts							-12	-4	-	-24	-1	45	4	10
		Equity contracts							27	-13	-	-50	-32	143	75	-7
		Foreign exchange contracts							-29	32	-	-	1	-	4	32
		Credit contracts							-799	-7	-	110	-	-	-696	11
		Other derivative contracts							-36	13	-	-1	-	-	-24	-
			Total derivative contracts						-1,410	245	-	626	-32	188	-383	266	-7
	Other assets								731	52	-	255	-	-	1,038	-2	-3
	Short sale liabilities								-	-	-	-	-	-	-	-	-3
	Other liabilities (excluding derivatives)								-43	12	-	-10	-	-	-41	1	-6
	See next page for detail.
	Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
	Included in trading activities and other noninterest income in the income statement.
	Included in debt securities available for sale in the income statement.
	Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities, equity investments and other noninterest income in the income statement.
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Quarter ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	58	2	-	1	-	-	61	-
	Collateralized loan and other debt obligations							1,273	-224	-	26	-	-	1,075	-246
	Corporate debt securities							56	-	-	-14	-	-	42	-2
	Mortgage-backed securities							93	-	-	-59	-	10	44	-
	Asset-backed securities							179	18	-	-9	-	-16	172	13
	Equity securities							3	-	-	-	-	-	3	-
		Total trading securities						1,662	-204	-	-55	-	-6	1,397	-235
	Other trading assets							91	-9	-	-	-	-	82	-7
			Total trading assets
				(excluding derivatives)				1,753	-213	-	-55	-	-6	1,479	-242	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						9,505	13	-6	-136	14	-5,178	4,212	-
	Mortgage-backed securities:
		Residential						15	-	-	-	-	-13	2	-
		Commercial						189	-3	-2	-5	-	-	179	-3
			Total mortgage-backed
				securities				204	-3	-2	-5	-	-13	181	-3
	Corporate debt securities							286	14	-	-38	-	-41	221	-
	Collateralized loan and other debt obligations							9,147	27	210	841	-	-	10,225	-
	Asset-backed securities:
		Auto loans and leases						6,206	-	-2	-717	-	-	5,487	-
		Home equity loans						257	3	-3	-	2	-162	97	-
		Other asset-backed securities						3,074	-5	34	-157	-	-23	2,923	-6
			Total asset-backed securities					9,537	-2	29	-874	2	-185	8,507	-6
				Total debt securities				28,679	49	231	-212	16	-5,417	23,346	-9	-4
	Marketable equity securities:
		Perpetual preferred securities						927	14	-4	-88	-	-	849	-
		Other marketable equity securities						2	1	-	-3	-	-	-	-
				Total marketable
					equity securities			929	15	-4	-91	-	-	849	-	-5
					Total securities
						available for sale		29,608	64	227	-303	16	-5,417	24,195	-9
Mortgages held for sale								3,328	38	-	-107	127	-79	3,307	37	-6
Loans								24	59	-	79	5,851	-	6,013	59	-6
Mortgage servicing rights								12,081	-2,298	-	1,173	-	-	10,956	-1,427	-6
Net derivative assets and liabilities:
	Interest rate contracts							906	2,879	-	-2,392	-	-	1,393	1,248
	Commodity contracts							4	48	-	-21	-	-3	28	21
	Equity contracts							-269	25	-	133	-	-81	-192	1
	Foreign exchange contracts							1	19	-	2	-	-	22	21
	Credit contracts							-1,657	-15	-	291	-	-	-1,381	-2
	Other derivative contracts							-106	15	-	-	-	-	-91	-
		Total derivative contracts						-1,121	2,971	-	-1,987	-	-84	-221	1,289	-7
Other assets								225	-10	-	-22	-	-	193	-8	-3
Short sale liabilities								-9	-	-	9	-	-	-	-	-3
Other liabilities (excluding derivatives)								-245	-17	-	9	-	-	-253	-	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities and other noninterest income in the income statement.
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Nine months ended September 30, 2013
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	46	2	-	-9	-	-	39	-1
	Collateralized loan and other debt obligations							742	74	-	-71	-	-202	543	-6
	Corporate debt securities							52	4	-	-36	16	-	36	2
	Mortgage-backed securities							6	1	-	9	-	-15	1	-
	Asset-backed securities							138	12	-	-55	25	-20	100	11
	Equity securities							3	-	-	-3	-	-	-	-
		Total trading securities						987	93	-	-165	41	-237	719	6
	Other trading assets							76	-16	-	-	-	-	60	-5
			Total trading assets
				(excluding derivatives)				1,063	77	-	-165	41	-237	779	1	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						3,631	7	-66	194	53	-176	3,643	-
	Mortgage-backed securities:
		Residential						94	5	9	-19	-	-1	88	-
		Commercial						203	-9	20	-14	-	-12	188	-5
			Total mortgage-backed
				securities				297	-4	29	-33	-	-13	276	-5
	Corporate debt securities							274	6	-18	-25	-	-3	234	-
	Collateralized loan and other debt obligations							13,188	-6	107	710	-	-10,613	3,386	-
	Asset-backed securities:
		Auto loans and leases						5,921	1	-28	-720	-	-	5,174	-
		Home equity loans						51	3	-1	-5	-	-48	-	-
		Other asset-backed securities						3,283	26	29	-151	24	-	3,211	-7
			Total asset-backed securities					9,255	30	-	-876	24	-48	8,385	-7
				Total debt securities				26,645	33	52	-30	77	-10,853	15,924	-12	-4
	Marketable equity securities:
		Perpetual preferred securities						794	6	-13	-47	-	-	740	-
		Other marketable equity securities						-	-	-	-	-	-	-	-
				Total marketable
					equity securities			794	6	-13	-47	-	-	740	-	-5
					Total securities
						available for sale		27,439	39	39	-77	77	-10,853	16,664	-12
Mortgages held for sale								3,250	31	-	-787	255	-316	2,433	-51	-6
Loans								6,021	-171	-	109	-	-154	5,805	-147	-6
Mortgage servicing rights								11,538	598	-	2,365	-	-	14,501	2,415	-6
Net derivative assets and liabilities:
	Interest rate contracts							659	-759	-	354	-	-	254	104
	Commodity contracts							21	3	-	-55	-1	36	4	1
	Equity contracts							-122	-42	-	168	-32	103	75	-26
	Foreign exchange contracts							21	-22	-	4	1	-	4	-14
	Credit contracts							-1,150	-20	-	474	-	-	-696	28
	Other derivative contracts							-78	54	-	-	-	-	-24	-
		Total derivative contracts						-649	-786	-	945	-32	139	-383	93	-7
Other assets								162	88	-	788	-	-	1,038	-5	-3
Short sale liabilities								-	-	-	-	-	-	-	-	-3
Other liabilities (excluding derivatives)								-49	18	-	-10	-	-	-41	5	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities, equity investments and other noninterest income in the income statement.
															Net unrealized
									Total net gains		Purchases,				gains (losses)
									(losses) included in		sales,				included in
										Other	issuances				income related
								Balance,		compre-	and	Transfers	Transfers	Balance,	to assets and
							beginning		Net	hensive	settlements,	into	out of	end of	liabilities held
(in millions)								of period	income	income	net (1)	Level 3	Level 3	period	at period end	-2
Nine months ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	53	2	-	6	-	-	61	-1
	Collateralized loan and other debt obligations							1,582	-206	-	-301	-	-	1,075	-261
	Corporate debt securities							97	-2	-	-53	-	-	42	-4
	Mortgage-backed securities							108	3	-	-67	-	-	44	-2
	Asset-backed securities							190	46	-	-62	14	-16	172	35
	Equity securities							4	1	-	-2	-	-	3	-
		Total trading securities						2,034	-156	-	-479	14	-16	1,397	-233
	Other trading assets							115	-33	-	-	-	-	82	-18
			Total trading assets
				(excluding derivatives)				2,149	-189	-	-479	14	-16	1,479	-251	-3
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						11,516	8	188	1,565	14	-9,079	4,212	-
	Mortgage-backed securities:
		Residential						61	11	11	-35	28	-74	2	-1
		Commercial						232	-17	19	-55	-	-	179	-1
			Total mortgage-backed
				securities				293	-6	30	-90	28	-74	181	-2
	Corporate debt securities							295	17	-5	-46	1	-41	221	-
	Collateralized loan and other debt obligations							8,599	112	387	1,127	-	-	10,225	-
	Asset-backed securities:
		Auto loans and leases						6,641	3	5	-1,162	-	-	5,487	-
		Home equity loans						282	14	11	-3	29	-236	97	-4
		Other asset-backed securities						2,863	-28	96	14	1	-23	2,923	-26
			Total asset-backed securities					9,786	-11	112	-1,151	30	-259	8,507	-30
				Total debt securities				30,489	120	712	1,405	73	-9,453	23,346	-32	-4
	Marketable equity securities:
		Perpetual preferred securities						1,344	85	-28	-552	-	-	849	-
		Other marketable equity securities						23	2	-15	-10	-	-	-	-
				Total marketable
					equity securities			1,367	87	-43	-562	-	-	849	-	-5
					Total securities
						available for sale		31,856	207	669	843	73	-9,453	24,195	-32
Mortgages held for sale								3,410	4	-	-176	298	-229	3,307	16	-6
Loans								23	59	-	80	5,851	-	6,013	59	-6
Mortgage servicing rights								12,603	-5,442	-	3,795	-	-	10,956	-3,216	-6
Net derivative assets and liabilities:
	Interest rate contracts							609	6,565	-	-5,781	-	-	1,393	1,292
	Commodity contracts							-	71	-	-32	-8	-3	28	36
	Equity contracts							-75	-19	-	-4	-	-94	-192	-18
	Foreign exchange contracts							-7	21	-	8	-	-	22	29
	Credit contracts							-1,998	96	-	521	-	-	-1,381	37
	Other derivative contracts							-117	26	-	-	-	-	-91	-
		Total derivative contracts						-1,588	6,760	-	-5,288	-8	-97	-221	1,376	-7
Other assets								244	-6	-	-45	-	-	193	-11	-3
Short sale liabilities								-	-	-	-	-	-	-	-	-3
Other liabilities (excluding derivatives)								-44	-19	-	-190	-	-	-253	-	-6
See next page for detail.
Represents only net gains (losses) that are due to changes in economic conditions and management's estimates of fair value and excludes changes due to the collection/realization of cash flows over time.
Included in trading activities and other noninterest income in the income statement.
Included in debt securities available for sale in the income statement.
Included in equity investments in the income statement.
Included in mortgage banking and other noninterest income in the income statement.
Included in mortgage banking, trading activities and other noninterest income in the income statement.
Fair Value, Assets and Liabilities Measured on Recurring Basis, Level 3 Reconciliation Detail	'
	(in millions)								Purchases	Sales	Issuances	Settlements	Net
	Quarter ended September 30, 2013
	Trading assets
		(excluding derivatives):
		Securities of U.S. states and
			political subdivisions					$	2	-3	-	-	-1
		Collateralized loan and other debt obligations							172	-135	-	1	38
		Corporate debt securities							5	-	-	-	5
		Mortgage-backed securities							425	-418	-	-	7
		Asset-backed securities							2	-9	-	-12	-19
		Equity securities							-	-	-	-	-
			Total trading securities						606	-565	-	-11	30
		Other trading assets							-	-	-	-	-
				Total trading assets
					(excluding derivatives)				606	-565	-	-11	30
	Securities available for sale:
		Securities of U.S. states and
			political subdivisions						-	-1	21	-182	-162
		Mortgage-backed securities:
			Residential						-	-16	-	-	-16
			Commercial						-	1	-	-7	-6
				Total mortgage-backed
					securities				-	-15	-	-7	-22
		Corporate debt securities							-	-	-	-2	-2
		Collateralized loan and other debt obligations							216	-	-	-71	145
		Asset-backed securities:
			Auto loans and leases						750	-	509	-955	304
			Home equity loans						-	-	-	-	-
			Other asset-backed securities						496	-	173	-461	208
				Total asset-backed securities					1,246	-	682	-1,416	512
					Total debt securities				1,462	-16	703	-1,678	471
		Marketable equity securities:
			Perpetual preferred securities						-	-	-	-15	-15
			Other marketable equity securities						-	-	-	-	-
					Total marketable
						equity securities			-	-	-	-15	-15
						Total securities
							available for sale		1,462	-16	703	-1,693	456
	Mortgages held for sale								55	-	-	-167	-112
	Loans								1	-	112	-103	10
	Mortgage servicing rights								-	1	953	-	954
	Net derivative assets and liabilities:
		Interest rate contracts							-	-9	-	600	591
		Commodity contracts							-2	2	-	-24	-24
		Equity contracts							-269	130	-	89	-50
		Foreign exchange contracts							-	-	-	-	-
		Credit contracts							-	-3	-	113	110
		Other derivative contracts							-	-	-	-1	-1
			Total derivative contracts						-271	120	-	777	626
	Other assets								263	-1	-	-7	255
	Short sale liabilities								-	-	-	-	-
	Other liabilities (excluding derivatives)								-	-	-	-10	-10
	(in millions)								Purchases	Sales	Issuances	Settlements	Net
	Quarter ended September 30, 2012
	Trading assets
		(excluding derivatives):
		Securities of U.S. states and
			political subdivisions					$	5	-4	-	-	1
		Collateralized loan and other debt obligations							271	-245	-	-	26
		Corporate debt securities							-	-14	-	-	-14
		Mortgage-backed securities							-	-59	-	-	-59
		Asset-backed securities							6	-3	-	-12	-9
		Equity securities							-	-	-	-	-
		Total trading securities						282	-325	-	-12	-55
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				282	-325	-	-12	-55
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						199	-35	65	-365	-136
	Mortgage-backed securities:
		Residential						-	-	-	-	-
		Commercial						-	-	-	-5	-5
			Total mortgage-backed
				securities				-	-	-	-5	-5
	Corporate debt securities							-	-37	-	-1	-38
	Collateralized loan and other debt obligations							1,188	-	-	-347	841
	Asset-backed securities:
		Auto loans and leases						-	-	180	-897	-717
		Home equity loans						-	-	-	-	-
		Other asset-backed securities						94	-38	270	-483	-157
			Total asset-backed securities					94	-38	450	-1,380	-874
				Total debt securities				1,481	-110	515	-2,098	-212
	Marketable equity securities:
		Perpetual preferred securities						-	-	-	-88	-88
		Other marketable equity securities						-	-3	-	-	-3
				Total marketable
					equity securities			-	-3	-	-88	-91
					Total securities
						available for sale		1,481	-113	515	-2,186	-303
Mortgages held for sale								100	-	-	-207	-107
Loans								-	-	129	-50	79
Mortgage servicing rights								-	-	1,173	-	1,173
Net derivative assets and liabilities:
	Interest rate contracts							28	-22	-	-2,398	-2,392
	Commodity contracts							22	-8	-	-35	-21
	Equity contracts							13	49	1	70	133
	Foreign exchange contracts							-	-	-	2	2
	Credit contracts							-	-	-	291	291
	Other derivative contracts							-	-	-	-	-
		Total derivative contracts						63	19	1	-2,070	-1,987
Other assets								-	-5	-	-17	-22
Short sale liabilities								9	-	-	-	9
Other liabilities (excluding derivatives)								-2	1	-8	18	9
(in millions)								Purchases	Sales	Issuances	Settlements	Net
Nine months ended September 30, 2013
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	125	-134	-	-	-9
	Collateralized loan and other debt obligations							691	-760	-	-2	-71
	Corporate debt securities							71	-107	-	-	-36
	Mortgage-backed securities							429	-420	-	-	9
	Asset-backed securities							14	-36	-	-33	-55
	Equity securities							-	-3	-	-	-3
		Total trading securities						1,330	-1,460	-	-35	-165
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				1,330	-1,460	-	-35	-165
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						-	-68	726	-464	194
	Mortgage-backed securities:
		Residential						-	-16	-	-3	-19
		Commercial						-	-	-	-14	-14
			Total mortgage-backed
				securities				-	-16	-	-17	-33
	Corporate debt securities							-	-	-	-25	-25
	Collateralized loan and other debt obligations							989	-14	-	-265	710
	Asset-backed securities:
		Auto loans and leases						1,102	-	813	-2,635	-720
		Home equity loans						-	-5	-	-	-5
		Other asset-backed securities						1,018	-36	781	-1,914	-151
			Total asset-backed securities					2,120	-41	1,594	-4,549	-876
				Total debt securities				3,109	-139	2,320	-5,320	-30
	Marketable equity securities:
		Perpetual preferred securities						-	-20	-	-27	-47
		Other marketable equity securities						-	-	-	-	-
				Total marketable
					equity securities			-	-20	-	-27	-47
					Total securities
						available for sale		3,109	-159	2,320	-5,347	-77
Mortgages held for sale								258	-572	-	-473	-787
Loans								23	-	344	-258	109
Mortgage servicing rights								-	-583	2,948	-	2,365
Net derivative assets and liabilities:
	Interest rate contracts							-	-	-	354	354
	Commodity contracts							-	-	-	-55	-55
	Equity contracts							-	-79	-	247	168
	Foreign exchange contracts							-	-	-	4	4
	Credit contracts							5	-4	-	473	474
	Other derivative contracts							-	-	-	-	-
		Total derivative contracts						5	-83	-	1,023	945
Other assets								820	-2	-	-30	788
Short sale liabilities								8	-8	-	-	-
Other liabilities (excluding derivatives)								-	-	-4	-6	-10
(in millions)								Purchases	Sales	Issuances	Settlements	Net
Nine months ended September 30, 2012
Trading assets
	(excluding derivatives):
	Securities of U.S. states and
		political subdivisions					$	73	-67	-	-	6
	Collateralized loan and other debt obligations							642	-943	-	-	-301
	Corporate debt securities							151	-204	-	-	-53
	Mortgage-backed securities							44	-111	-	-	-67
	Asset-backed securities							104	-130	-	-36	-62
	Equity securities							1	-3	-	-	-2
		Total trading securities						1,015	-1,458	-	-36	-479
	Other trading assets							-	-	-	-	-
			Total trading assets
				(excluding derivatives)				1,015	-1,458	-	-36	-479
Securities available for sale:
	Securities of U.S. states and
		political subdivisions						1,759	-37	965	-1,122	1,565
	Mortgage-backed securities:
		Residential						1	-34	-	-2	-35
		Commercial						10	-	-	-65	-55
			Total mortgage-backed
				securities				11	-34	-	-67	-90
	Corporate debt securities							-	-37	-	-9	-46
	Collateralized loan and other debt obligations							2,403	-185	-	-1,091	1,127
	Asset-backed securities:
		Auto loans and leases						2,040	-	490	-3,692	-1,162
		Home equity loans						-	-2	-	-1	-3
		Other asset-backed securities						996	-132	1,030	-1,880	14
			Total asset-backed securities					3,036	-134	1,520	-5,573	-1,151
				Total debt securities				7,209	-427	2,485	-7,862	1,405
	Marketable equity securities:
		Perpetual preferred securities						-	-	-	-552	-552
		Other marketable equity securities						-	-8	-	-2	-10
				Total marketable
					equity securities			-	-8	-	-554	-562
					Total securities
						available for sale		7,209	-435	2,485	-8,416	843
Mortgages held for sale								355	-	-	-531	-176
Loans								2	-	129	-51	80
Mortgage servicing rights								-	-293	4,088	-	3,795
Net derivative assets and liabilities:
	Interest rate contracts							28	-22	-	-5,787	-5,781
	Commodity contracts							22	-8	-	-46	-32
	Equity contracts							117	-133	1	11	-4
	Foreign exchange contracts							-	-	-	8	8
	Credit contracts							-5	2	-	524	521
	Other derivative contracts							-	-	-	-	-
		Total derivative contracts						162	-161	1	-5,290	-5,288
Other assets								17	-5	-	-57	-45
Short sale liabilities								9	-9	-	-	-
Other liabilities (excluding derivatives)								-3	11	-216	18	-190
Fair Value, Assets and Liabilities Measured on Recurring Basis, Quantative Information about Valuation Techniques and Unobservable Inputs	'
						Fair Value				Significant	Range of				Weighted
	($ in millions, except cost to service amounts)					Level 3			Valuation Technique(s)	Unobservable Input	Inputs			Average (1)
	30-Sep-13
	Trading and available for sale securities:
		Securities of U.S. states and
		political subdivisions:
			Government, healthcare and
				other revenue bonds		$	3,117		Discounted cash flow	Discount rate	0.4	-	6.1	%	1.4
							63		Vendor priced
			Auction rate securities and other municipal bonds				502		Discounted cash flow	Discount rate	0.4	-	11.8		4.4
										Weighted average life	1.8	-	6.6	yrs	4.7
		Collateralized loan and other debt obligations (2)					904		Market comparable pricing	Comparability adjustment	-18	-	21.7	%	2.5
							3,025		Vendor priced
		Asset-backed securities:
			Auto loans and leases				5,174		Discounted cash flow	Default rate	1.9	-	8.5		3.1
										Discount rate	0.5	-	2		0.8
										Loss severity	50	-	66		52.9
										Prepayment rate	0.6	-	1.4		0.8
			Other asset-backed securities:
				Dealer floor plan			1,782		Discounted cash flow	Discount rate	0.7	-	1.6		0.9
				Diversified payment rights (3)			654		Discounted cash flow	Discount rate	1.8	-	3.2		2.4
				Other commercial and consumer			782	-4	Discounted cash flow	Discount rate	0.1	-	21.1		2.8
										Weighted average life	0.8	-	6.9	yrs	2.5
							93		Vendor priced
		Marketable equity securities: perpetual
		preferred					740	-5	Discounted cash flow	Discount rate	4.8	-	7.9	%	7
										Weighted average life	1	-	15	yrs	12.1
	Mortgages held for sale (residential)						2,433		Discounted cash flow	Default rate	0.6	-	14.4	%	3
										Discount rate	3.6	-	7.9		5.5
										Loss severity	1.3	-	33.3		21.6
										Prepayment rate	2	-	9.7		5.5
	Loans						5,805	-6	Discounted cash flow	Discount rate	2.4	-	3.6		3.1
										Prepayment rate	3.1	-	39.3		12.2
										Utilization rate	0	-	2		0.8
	Mortgage servicing rights (residential)						14,501		Discounted cash flow	Cost to service per loan (7)	$87	-	826		198
										Discount rate	5.6	-	11.1	%	7.6
										Prepayment rate (8)	6.8	-	20		11.7
	Net derivative assets and (liabilities):
		Interest rate contracts					35		Discounted cash flow	Default rate	0.2	-	15.5		5
										Loss severity	40.9	-	50		50
										Prepayment rate	11	-	15.6		15.6
		Interest rate contracts: derivative loan
			commitments				219	-9	Discounted cash flow	Fall-out factor	1	-	99		27.6
										Initial-value servicing	-6.8	-	82.8	bps	41.5
		Equity contracts					199		Discounted cash flow	Conversion factor	-20.2	-	0	%	-17.6
										Weighted average life	0.5	-	3.5	yrs	1.6
							-124		Option model	Correlation factor	0	-	88	%	75.7
										Volatility factor	10.9	-	68.2		23.2
		Credit contracts					-700		Market comparable pricing	Comparability adjustment	-30.7	-	34.5		0.4
							4		Option model	Credit spread	0.1	-	15.2		1.1
										Loss severity	16.5	-	87.5		43.9
	Other assets: nonmarketable equity investments						911		Market comparable pricing	Comparability adjustment	-30	-	-4		-24.8
	Insignificant Level 3 assets,
		net of liabilities					677	-10
			Total level 3 assets, net of liabilities			$	40,796	-11
	Weighted averages are calculated using outstanding unpaid principal balance for cash instruments such as loans and securities, and notional amounts for derivative instruments.
	Includes $705 million of collateralized debt obligations.
	Securities backed by specified sources of current and future receivables generated from foreign originators.
	Consists primarily of investments in asset-backed securities that are revolving in nature, in which the timing of advances and repayments of principal are uncertain.
	Consists of auction rate preferred equity securities with no maturity date that are callable by the issuer.
	Consists predominantly of reverse mortgage loans securitized with GNMA which were accounted for as secured borrowing transactions.
	The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $87 - $339.
	Includes a blend of prepayment speeds and expected defaults. Prepayment speeds are influenced by mortgage interest rates as well as our estimation of drivers of borrower behavior.
Total derivative loan commitments were a net asset of $222 million, of which $219 million were classified as level 3 at September 30, 2013.
Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes corporate debt securities, mortgage-backed securities, asset-backed securities backed by home equity loans, other marketable equity securities, other liabilities and certain net derivative assets and liabilities, such as commodity contracts, foreign exchange contracts and other derivative contracts.
Consists of total Level 3 assets of $43.6 billion and total Level 3 liabilities of $2.8 billion, before netting of derivative balances.
					Fair Value				Significant	Range of				Weighted
($ in millions, except cost to service amounts)					Level 3			Valuation Technique(s)	Unobservable Input	Inputs				Average (1)
31-Dec-12
Trading and available for sale securities:
	Securities of U.S. states and
	political subdivisions:
		Government, healthcare and
			other revenue bonds		$	3,081		Discounted cash flow	Discount rate	0.5	-	4.8	%	1.8
		Auction rate securities and other municipal bonds				596		Discounted cash flow	Discount rate	2	-	12.9		4.4
									Weighted average life	3	-	7.5	yrs	3.4
	Collateralized loan and other debt obligations(2)					1,423		Market comparable pricing	Comparability adjustment	-22.5	-	24.7	%	3.5
						12,507		Vendor priced
	Asset-backed securities:
		Auto loans and leases				5,921		Discounted cash flow	Default rate	2.1	-	9.7		3.2
									Discount rate	0.6	-	1.6		1
									Loss severity	50	-	66.6		51.8
									Prepayment rate	0.6	-	0.9		0.7
		Other asset-backed securities:
			Dealer floor plan			1,030		Discounted cash flow	Discount rate	0.5	-	2.2		1.9
			Diversified payment rights (3)			639		Discounted cash flow	Discount rate	1	-	2.9		1.8
			Other commercial and consumer			1,665	-4	Discounted cash flow	Discount rate	0.6	-	6.8		2.7
									Weighted average life	1	-	7.5	yrs	2.9
						87		Vendor priced
	Marketable equity securities: perpetual
		preferred				794	-5	Discounted cash flow	Discount rate	4.3	-	9.3	%	6.3
									Weighted average life	1	-	7	yrs	5.3
Mortgages held for sale (residential)						3,250		Discounted cash flow	Default rate	0.6	-	14.8	%	5.5
									Discount rate	3.4	-	7.5		5.4
									Loss severity	1.3	-	35.3		26.4
									Prepayment rate	1	-	11		6.2
Loans						6,021	-6	Discounted cash flow	Discount rate	2.4	-	2.8		2.6
									Prepayment rate	1.6	-	44.4		11.6
									Utilization rate	0	-	2		0.8
Mortgage servicing rights (residential)						11,538		Discounted cash flow	Cost to service per loan (7)	$90	-	854		219
									Discount rate	6.7	-	10.9	%	7.4
									Prepayment rate (8)	7.3	-	23.7		15.7
Net derivative assets and (liabilities):
	Interest rate contracts					162		Discounted cash flow	Default rate	0	-	20		5.4
									Loss severity	45.8	-	83.2		51.6
									Prepayment rate	7.4	-	15.6		14.9
	Interest rate contracts: derivative loan
		commitments				497		Discounted cash flow	Fall-out factor	1	-	99		22.9
									Initial-value servicing	-13.7	-	137.2	bps	85.6
	Equity contracts					-122		Option model	Correlation factor	-43.6	-	94.5	%	50.3
									Volatility factor	3	-	68.9		26.5
	Credit contracts					-1,157		Market comparable pricing	Comparability adjustment	-34.4	-	30.5		0.1
						8		Option model	Credit spread	0.1	-	14		2
									Loss severity	16.5	-	87.5		52.3
Insignificant Level 3 assets,
	net of liabilities					835	-9
		Total level 3 assets, net of liabilities			$	48,775	-10
Weighted averages are calculated using outstanding unpaid principal balance for cash instruments such as loans and securities, and notional amounts for derivative instruments.
Includes $665 million of collateralized debt obligations.
Securities backed by specified sources of current and future receivables generated from foreign originators.
Consists primarily of investments in asset-backed securities that are revolving in nature, in which the timing of advances and repayments of principal are uncertain.
Consists of auction rate preferred equity securities with no maturity date that are callable by the issuer.
Consists predominantly of reverse mortgage loans securitized with GNMA which were accounted for as secured borrowing transactions.
The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $90 - $437.
Includes a blend of prepayment speeds and expected defaults. Prepayment speeds are influenced by mortgage interest rates as well as our estimation of drivers of borrower behavior.
Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes corporate debt securities, mortgage-backed securities, asset-backed securities backed by home equity loans, other marketable equity securities, other assets, other liabilities and certain net derivative assets and liabilities, such as commodity contracts, foreign exchange contracts and other derivative contracts.
Consists of total Level 3 assets of $51.9 billion and total Level 3 liabilities of $3.1 billion, before netting of derivative balances.
Fair Value, Assets Recorded at Fair Value on a Nonrecurring Basis	'
									30-Sep-13					31-Dec-12
	(in millions)								Level 1	Level 2	Level 3	Total		Level 1	Level 2	Level 3	Total
	Mortgages held for sale (LOCOM) (1)							$	-	721	922	1,643		-	1,509	1,045	2,554
	Loans held for sale								-	39	-	39		-	4	-	4
	Loans:
		Commercial							-	430	7	437		-	1,507	-	1,507
		Consumer							-	3,517	7	3,524		-	5,889	4	5,893
			Total loans (2)						-	3,947	14	3,961		-	7,396	4	7,400
	Other assets (3)								-	402	115	517		-	989	144	1,133
	Predominantly real estate 1-4 family first mortgage loans.
	Represents carrying value of loans for which adjustments are based on the appraised value of the collateral.
	Includes the fair value of foreclosed real estate and other collateral owned that were measured at fair value subsequent to their initial classification as foreclosed assets.
Changes in Fair Value of Assets Recorded at Fair Value on Nonrecurring Basis	'
								Nine months ended Sept. 30,
	(in millions)								2013		2012
	Mortgages held for sale (LOCOM)							$	-13		45
	Loans held for sale								-1		1
	Loans:
		Commercial							-156		-788
		Consumer(1)							-1,803		-2,813
			Total loans						-1,959		-3,601
	Other assets (2)								-191		-320
				Total				$	-2,164		-3,875
	Represents write-downs of loans based on the appraised value of the collateral.
	Includes the losses on foreclosed real estate and other collateral owned that were measured at fair value subsequent to their initial classification as foreclosed assets.
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Quantative Information about Valuation Techniques and Unobservable Inputs	'
									Fair Value			Significant		Range				Weighted
	($ in millions)								Level 3		Valuation Technique(s) (1)	Unobservable Inputs (1)		of inputs				Average (2)
	30-Sep-13
	Residential mortgages held for sale
		(LOCOM)						$	922	-3	Discounted cash flow	Default rate	-4	1.2	-	5.6	%	2.7	%
												Discount rate		4.3	-	12.1		11.1
												Loss severity		1.9	-	47.5		5.2
												Prepayment rate	-5	2	-	100		67.1
	Insignificant level 3 assets								129
		Total							1,051
	31-Dec-12
	Residential mortgages held for sale							$	1,045	-3	Discounted cash flow	Default rate	-4	2.9	-	21.2	%	7.9	%
		(LOCOM)										Discount rate		4.1	-	11.9		10.9
												Loss severity		2	-	45		6
												Prepayment rate	-5	1	-	100		66.7
	Insignificant level 3 assets								148
		Total							1,193
	Refer to the narrative following the recurring quantitative Level 3 table of this Note for a definition of the valuation technique(s) and significant unobservable inputs.
	Weighted averages are calculated using outstanding unpaid principal balance of the loans.
	Consists of approximately $853 million and $942 million government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitization, at September 30, 2013 and December 31, 2012, respectively and $69 million and $103 million of other mortgage loans which are not government insured/guaranteed at September 30, 2013 and December 31, 2012, respectively.
	Applies only to non-government insured/guaranteed loans.
	Includes the impact on prepayment rate of expected defaults for the government insured/guaranteed loans, which impacts the frequency and timing of early resolution of loans.
Fair Value Investments in Entites that Calculate Net Asset Value Per Share	'
												Redemption
									Fair	Unfunded	Redemption	notice
	(in millions)								value	commitments	frequency	period
	30-Sep-13
	Offshore funds							$	391	-	Daily - Quarterly	1 - 180 days
	Funds of funds								-	-	N/A	N/A
	Hedge funds								3	-	Monthly - Semi Annually	5 - 95 days
	Private equity funds								740	170	N/A	N/A
	Venture capital funds								77	16	N/A	N/A
		Total						$	1,211	186
	31-Dec-12
	Offshore funds							$	379	-	Daily - Annually	1 - 180 days
	Funds of funds								1	-	Quarterly	90 days
	Hedge funds								2	-	Daily - Annually	5 - 95 days
	Private equity funds								807	195	N/A	N/A
	Venture capital funds								82	21	N/A	N/A
		Total						$	1,271	216
	N/A - Not applicable
Fair Value Option, Carrying Amount	'
					30-Sep-13				31-Dec-12
							Fair value				Fair value
							carrying				carrying
							amount				amount
							less				less
				Fair value		Aggregate	aggregate		Fair value	Aggregate	aggregate
					carrying	unpaid	unpaid		carrying	unpaid	unpaid
	(in millions)				amount	principal	principal		amount	principal	principal
	Mortgages held for sale:
		Total loans		$	23,209	22,836	373	-1	42,305	41,183	1,122	-1
		Nonaccrual loans			264	460	-196		309	655	-346
		Loans 90 days or more past due and still accruing			36	43	-7		49	64	-15
	Loans held for sale:
		Total loans			2	9	-7		6	10	-4
		Nonaccrual loans			2	9	-7		2	6	-4
	Loans:
		Total loans			6,051	5,689	362		6,206	5,669	537
		Nonaccrual loans			141	142	-1		89	89	-
		Loans 90 days or more past due and still accruing			18	17	1		-	-	-
	Other assets (2)				911	n/a	n/a		-	n/a	n/a
	Long-term debt				-	-199	199	-3	-1	-1,157	1,156	-3
	The difference between fair value carrying amount and aggregate unpaid principal includes changes in fair value recorded at and subsequent to funding, gains and losses on the related loan commitment prior to funding, and premiums on acquired loans.
	Consists of nonmarketable equity investments carried at fair value. See Note 6 for more information.
	Represents collateralized, non-recourse debt securities issued by certain of our consolidated securitization VIEs that are held by third party investors. To the extent cash flows from the underlying collateral are not sufficient to pay the unpaid principal amount of the debt, those third party investors absorb losses.
Fair Value Option, Gains and Losses	'
			2013					2012
					Net gains				Net gains
			Mortgage		(losses)			Mortgage	(losses)
			banking		from	Other		banking	from	Other
			noninterest		trading	noninterest		noninterest	trading	noninterest
	(in millions)			income	activities	income		income	activities	income
	Quarter ended September 30,
	Mortgages held for sale		$	771	-	-		2,594	-	-
	Loans held for sale			-	-	-		-	-	4
	Loans			-	-	-21		-	-	54
	Other assets			-	-	54		-	-	-
	Long-term debt			-	-	-		-	-	-19
	Other interests held (1)			-	-4	-		-	-12	18
	Nine months ended September 30,
	Mortgages held for sale		$	1,805	-	-		6,915	-	1
	Loans held for sale			-	-	-		-	-	23
	Loans			-	-	-175		-	-	81
	Other assets			-	-	93		-	-	-
	Long-term debt			-	-	-		-	-	-23
	Other interests held (1)			-	-17	6		-	-36	33
	-1	Consists of retained interests in securitization and changes in fair value of letters of credit.
Fair Value Option, Instrument Specific Credit Risk	'
				Quarter ended Sept. 30,				Nine months ended Sept. 30,
	(in millions)				2013	2012		2013	2012
	Gains (losses) attributable to instrument-specific credit risk:
		Mortgages held for sale		$	1	-8		126	-99
		Loans held for sale			-	4		-	23
			Total	$	1	-4		126	-76
Fair Value, Estimated for Financial Instruments Not Carried at Fair Value	'
							Estimated fair value
	(in millions)				Carrying amount		Level 1		Level 2		Level 3		Total
	30-Sep-13
	Financial assets
		Cash and due from banks (1)		$	18,928		18,928		-		-		18,928
		Federal funds sold, securities purchased under resale
			agreements and other short-term investments (1)		182,036		5,327		176,709		-		182,036
		Mortgages held for sale (2)			2,186		-		1,267		922		2,189
		Loans held for sale (2)			202		-		182		24		206
		Loans, net (3)			779,525		-		56,776		728,612		785,388
		Nonmarketable equity investments (cost method)			7,201		-		-		8,700		8,700
	Financial liabilities
		Deposits			1,041,871		-		996,869		45,421		1,042,290
		Short-term borrowings (1)			53,851		-		53,851		-		53,851
		Long-term debt (4)			151,201		-		142,862		10,678		153,540
	31-Dec-12
	Financial assets
		Cash and due from banks (1)		$	21,860		21,860		-		-		21,860
		Federal funds sold, securities purchased under resale
			agreements and other short-term investments (1)		137,313		5,046		132,267		-		137,313
		Mortgages held for sale (2)			4,844		-		3,808		1,045		4,853
		Loans held for sale (2)			104		-		83		29		112
		Loans, net (3)			763,968		-		56,237		716,114		772,351
		Nonmarketable equity investments (cost method)			6,799		-		2		8,229		8,231
	Financial liabilities
		Deposits			1,002,835		-		946,922		57,020		1,003,942
		Short-term borrowings (1)			57,175		-		57,175		-		57,175
		Long-term debt (4)			127,366		-		119,220		11,063		130,283
	Amounts consist of financial instruments in which carrying value approximates fair value.
	Balance reflects MHFS and LHFS, as applicable, other than those MHFS and LHFS for which election of the fair value option was made.
	Loans exclude balances for which the fair value option was elected and also exclude lease financing with a carrying amount of $11.7 billion and $12.4 billion at September 30, 2013 and December 31, 2012, respectively.
	The carrying amount and fair value exclude balances for which the fair value option was elected and obligations under capital leases of $11 million and $12 million at September 30, 2013 and December 31, 2012, respectively.

Preferred_Stock_Tables

Preferred Stock (Tables)	9 Months Ended
	Sep. 30, 2013
Preferred Stock (Tables) [Abstract]	'
Detail of Preferred Stock	'
			30-Sep-13				31-Dec-12
				Liquidation	Shares			Liquidation	Shares
				preference	authorized			preference	authorized
				per share	and designated			per share	and designated
	DEP Shares
	Dividend Equalization Preferred Shares		$	10	97,000		$	10	97,000
	Series G
	7.25% Class A Preferred Stock			15,000	50,000			15,000	50,000
	Series H
	Floating Class A Preferred Stock			20,000	50,000			20,000	50,000
	Series I
	Floating Class A Preferred Stock			100,000	25,010			100,000	25,010
	Series J
	8.00% Non-Cumulative Perpetual Class A Preferred Stock			1,000	2,300,000			1,000	2,300,000
	Series K
	7.98% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock			1,000	3,500,000			1,000	3,500,000
	Series L
	7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock			1,000	4,025,000			1,000	4,025,000
	Series N
	5.20% Non-Cumulative Perpetual Class A Preferred Stock			25,000	30,000			25,000	30,000
	Series O
	5.125% Non-Cumulative Perpetual Class A Preferred Stock			25,000	27,600			25,000	27,600
	Series P
	5.25% Non-Cumulative Perpetual Class A Preferred Stock			25,000	26,400			-	-
	Series Q
	5.85% Non-Cumulative Perpetual Class A Preferred Stock			25,000	69,000			-	-
		Total			10,200,010				10,104,610
			30-Sep-13						31-Dec-12
			Shares						Shares
			issued and		Par	Carrying			issued and		Par	Carrying
	(in millions, except shares)		outstanding		value	value	Discount		outstanding		value	value	Discount
	DEP Shares
	Dividend Equalization Preferred Shares		96,546	$	-	-	-		96,546	$	-	-	-
	Series I (1)
	Floating Class A Preferred Stock		25,010		2,501	2,501	-		25,010		2,501	2,501	-
	Series J (1)
	8.00% Non-Cumulative Perpetual Class A Preferred Stock		2,150,375		2,150	1,995	155		2,150,375		2,150	1,995	155
	Series K (1)
	7.98% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock		3,352,000		3,352	2,876	476		3,352,000		3,352	2,876	476
	Series L (1)
	7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock		3,968,000		3,968	3,200	768		3,968,000		3,968	3,200	768
	Series N (1)
	5.20% Non-Cumulative Perpetual Class A Preferred Stock		30,000		750	750	-		30,000		750	750	-
	Series O (1)
	5.125% Non-Cumulative Perpetual Class A Preferred Stock		26,000		650	650	-		26,000		650	650	-
	Series P (1)
	5.25% Non-Cumulative Perpetual Class A Preferred Stock		25,000		625	625	-		-		-	-	-
	Series Q (1)
	5.85% Non-Cumulative Perpetual Class A Preferred Stock		69,000		1,725	1,725	-		-		-	-	-
	ESOP
	Cumulative Convertible Preferred Stock		1,227,182		1,227	1,227	-		910,934		911	911	-
		Total	10,969,113	$	16,948	15,549	1,399		10,558,865	$	14,282	12,883	1,399
	Preferred shares qualify as Tier 1 capital.
Detail of Employee Stock Ownership Plan Preferred Stock	'
			Shares issued and outstanding				Carrying value				Adjustable
			Sept. 30,	Dec. 31,			Sept. 30,		Dec. 31,		dividend rate
	(in millions, except shares)		2013	2012			2013		2012		Minimum	Maximum
	ESOP Preferred Stock
	$1,000 liquidation preference per share
		2013	434,007	-		$	434		-		8.5	%	11
		2012	224,454	245,604			224		246		10		11
		2011	250,263	277,263			250		277		9		10
		2010	178,511	201,011			179		201		9.5		10.5
		2008	61,724	73,434			62		73		10.5		11.5
		2007	42,878	53,768			43		54		10.75		11.75
		2006	24,244	33,559			24		34		10.75		11.75
		2005	11,101	18,882			11		19		9.75		10.75
		2004	-	7,413			-		7		8.5		9.5
	Total ESOP Preferred Stock (1)		1,227,182	910,934		$	1,227		911
	Unearned ESOP shares (2)					$	-1,332		-986
	At September 30, 2013 and December 31, 2012, additional paid-in capital included $105 million and $75 million, respectively, related to ESOP preferred stock.
	We recorded a corresponding charge to unearned ESOP shares in connection with the issuance of the ESOP Preferred Stock. The unearned ESOP shares are reduced as shares of the ESOP Preferred Stock are committed to be released.

Employee_Benefits_Tables

Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2013
Employee Benefits and Other Expenses (Tables) [Abstract]	'
Components of Net Periodic Benefit Cost	'
				2013			2012
				Pension benefits			Pension benefits
					Non-	Other		Non-	Other
	(in millions)		Qualified		qualified	benefits	Qualified	qualified	benefits
	Quarter ended September 30,
	Service cost		$	1	-	3	-	1	3
	Interest cost			121	7	11	128	8	15
	Expected return on plan assets			-166	-	-9	-162	-	-9
	Amortization of net actuarial loss			29	4	-	33	2	-
	Amortization of prior service credit			-	-	-1	-	-	-1
	Settlement			27	-	-	1	-	-2
		Net periodic benefit cost (income)	$	12	11	4	-	11	6
	Nine months ended September 30,
	Service cost		$	1	-	8	1	1	9
	Interest cost			347	21	35	384	24	45
	Expected return on plan assets			-507	-	-27	-487	-	-26
	Amortization of net actuarial loss			113	11	-	99	7	-
	Amortization of prior service credit			-	-	-2	-	-	-2
	Settlement			95	4	-	2	5	-3
		Net periodic benefit cost (income)	$	49	36	14	-1	37	23

Earnings_Per_Common_Share_Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Common Share (Tables) [Abstract]	'
Earnings Per Common Share	'
						Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions, except per share amounts)						2013	2012	2013	2012
	Wells Fargo net income					$	5,578	4,937	16,268	13,807
	Less:		Preferred stock dividends and other (1)				261	220	748	665
	Wells Fargo net income applicable to common stock (numerator)					$	5,317	4,717	15,520	13,142
	Earnings per common share
	Average common shares outstanding (denominator)						5,295.30	5,288.10	5,293.00	5,292.70
	Per share					$	1	0.89	2.93	2.48
	Diluted earnings per common share
	Average common shares outstanding						5,295.30	5,288.10	5,293.00	5,292.70
	Add:		Stock options				34	28.7	32.6	28.3
			Restricted share rights				44.5	38.6	43.9	34.7
			Warrants				7.9	0.2	5.2	-
	Diluted average common shares outstanding (denominator)						5,381.70	5,355.60	5,374.70	5,355.70
	Per share					$	0.99	0.88	2.89	2.45
	Includes $261 million and $220 million of preferred stock dividends for third quarter 2013 and 2012, respectively, and $747 million and $659 million for the first nine months of 2013 and 2012, respectively.
Antidilutive Warrants And Options Outstanding	'
		Weighted-average shares
		Quarter ended Sept. 30,			Nine months ended Sept. 30,
	(in millions)	2013		2012	2013		2012
	Options	10.2		53.5	11.3		57.2
	Warrants	-		-	-		39.2

Other_Comprehensive_Income_Tab

Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2013
Other Comprehensive Income Tables [Abstract]	'
Components of other comprehensive income, reclassifications to net income by income statement line item, and the related tax effects	'
									Quarter ended September 30,									Nine months ended September 30,
										2013					2012			2013			2012
										Before	Tax		Net of		Before	Tax	Net of	Before	Tax	Net of	Before	Tax	Net of
	(in millions)									tax	effect		tax		tax	effect	tax	tax	effect	tax	tax	effect	tax
	Securities available for sale:
		Net unrealized gains (losses)
			arising during the period						$	842	-199		643		2,892	-1,077	1,815	-5,922	2,331	-3,591	5,597	-2,097	3,500
		Reclassification of net (gains)
			losses to net income:
				Net (gains) losses on debt securities
					available for sale					6	-3		3		-3	1	-2	15	-6	9	65	-25	40
				Net gains from equity
					investments					-120	45		-75		-38	14	-24	-212	80	-132	-355	134	-221
						Subtotal reclassifications
							to net income			-114	42		-72		-41	15	-26	-197	74	-123	-290	109	-181
								Net change		728	-157		571		2,851	-1,062	1,789	-6,119	2,405	-3,714	5,307	-1,988	3,319
	Derivatives and hedging activities:
		Net unrealized gains (losses)
			arising during the period							-7	3		-4		24	-3	21	-10	4	-6	63	-19	44
		Reclassification of net (gains) losses
			on cash flow hedges to net income:
				Interest income on loans						-106	35		-71		-118	48	-70	-337	122	-215	-370	143	-227
				Interest expense on long-term debt						19	-7		12		24	-8	16	73	-27	46	70	-26	44
				Noninterest income						18	-7		11		-	-	-	35	-13	22	-	-	-
				Salaries expense						-	-		-		5	-2	3	4	-2	2	5	-2	3
						Subtotal reclassifications
							to net income			-69	21		-48		-89	38	-51	-225	80	-145	-295	115	-180
								Net change		-76	24		-52		-65	35	-30	-235	84	-151	-232	96	-136
	Defined benefit plans adjustments:
		Net actuarial gains (losses) arising
			during the period							297	-112		185		-1	-	-1	1,075	-405	670	-18	7	-11
		Reclassification of amounts to net
			periodic benefit costs (1):
				Amortization of net actuarial loss						33	-13		20		35	-13	22	124	-47	77	106	-40	66
				Settlements and other						26	-9		17		-	-	-	97	-36	61	5	-2	3
						Subtotal reclassifications to
							net periodic benefit costs			59	-22		37		35	-13	22	221	-83	138	111	-42	69
								Net change		356	-134		222		34	-13	21	1,296	-488	808	93	-35	58
	Foreign currency translation adjustments:
		Net unrealized gains (losses) arising
			during the period							12	2		14		45	-17	28	-27	-4	-31	-1	-	-1
		Reclassification of net (gains)
			losses to net income:
				Noninterest income						3	-		3		-	-	-	-12	5	-7	-10	4	-6
								Net change		15	2		17		45	-17	28	-39	1	-38	-11	4	-7
	Other comprehensive income (loss)								$	1,023	-265		758		2,865	-1,057	1,808	-5,097	2,002	-3,095	5,157	-1,923	3,234
	Less: Other comprehensive income
		from noncontrolling interests, net of tax											266				2			266			6
			Wells Fargo other comprehensive
				income (loss), net of tax								$	492				1,806			-3,361			3,228
	These items are included in the computation of net periodic benefit cost which is recorded in employee benefit expense (see Note 15 for additional details).
Cumulative other comprehensive income	'
														Cumulative
								Derivatives		Defined		Foreign		other
						Securities		and		benefit		currency		compre-
						available		hedging		plans		translation		hensive
	(in millions)					for sale		activities		adjustments		adjustments		income
	Quarter ended September 30, 2013
	Balance, beginning of period				$	3,177		190		-1,595		25		1,797
		Net unrealized gains (losses)
			arising during the period			643		-4		185		14		838
		Amounts reclassified to net income				-72		-48		37		3		-80
		Net change				571		-52		222		17		758
		Less: Other comprehensive income from
				noncontrolling interests		265		-		-		1		266
	Balance, end of period				$	3,483		138		-1,373		41		2,289
	Quarter ended September 30, 2012
	Balance, beginning of period				$	5,939		384		-1,749		55		4,629
		Net unrealized gains (losses) arising during the period				1,815		21		-1		28		1,863
		Amounts reclassified to net income				-26		-51		22		-		-55
		Net change				1,789		-30		21		28		1,808
		Less: Other comprehensive income (loss) from
				noncontrolling interests		3		-		-		-1		2
	Balance, end of period				$	7,725		354		-1,728		84		6,435
	Nine months ended September 30, 2013
	Balance, beginning of period				$	7,462		289		-2,181		80		5,650
		Net unrealized gains (losses)
			arising during the period			-3,591		-6		670		-31		-2,958
		Amounts reclassified to net income				-123		-145		138		-7		-137
		Net change				-3,714		-151		808		-38		-3,095
		Less: Other comprehensive income from
				noncontrolling interests		265		-		-		1		266
	Balance, end of period				$	3,483		138		-1,373		41		2,289
	Nine months ended September 30, 2012
	Balance, beginning of period				$	4,413		490		-1,786		90		3,207
		Net unrealized gains (losses) arising during the period				3,500		44		-11		-1		3,532
		Amounts reclassified to net income				-181		-180		69		-6		-298
		Net change				3,319		-136		58		-7		3,234
		Less: Other comprehensive income (loss) from
				noncontrolling interests		7		-		-		-1		6
	Balance, end of period				$	7,725		354		-1,728		84		6,435

Operating_Segments_Tables

Operating Segments (Tables)	9 Months Ended
	Sep. 30, 2013
Operating Segment (Tables) [Abstract]	'
Financial Information of Operating Segment	'
								Wealth,
								Brokerage
				Community		Wholesale			and			Consolidated
	(income/expense in millions,			Banking		Banking		Retirement		Other (1)		Company
	average balances in billions)			2013	2012	2013	2012	2013	2012	2013	2012	2013	2012
	Quarter ended September 30,
	Net interest income (2)		$	7,244	7,247	3,059	3,028	749	680	-304	-293	10,748	10,662
	Provision (reversal of provision)
		for credit losses		240	1,627	-144	-57	-38	30	17	-9	75	1,591
	Noninterest income			5,000	5,863	2,812	2,921	2,558	2,353	-640	-586	9,730	10,551
	Noninterest expense			7,060	7,402	3,084	2,908	2,619	2,457	-661	-655	12,102	12,112
	Income (loss) before income
		tax expense (benefit)		4,944	4,081	2,931	3,098	726	546	-300	-215	8,301	7,510
	Income tax expense (benefit)			1,505	1,250	952	1,103	275	208	-114	-81	2,618	2,480
	Net income (loss) before
		noncontrolling interests		3,439	2,831	1,979	1,995	451	338	-186	-134	5,683	5,030
	Less: Net income from
		noncontrolling interests		98	91	6	2	1	-	-	-	105	93
	Net income (loss) (3)		$	3,341	2,740	1,973	1,993	450	338	-186	-134	5,578	4,937
	Average loans		$	497.7	485.3	290.4	277.1	46.7	42.5	-30	-28.2	804.8	776.7
	Average assets			836.6	765.1	500.7	490.7	180.8	163.8	-68.5	-65.3	1,449.60	1,354.30
	Average core deposits			618.2	594.5	235.3	225.4	150.6	136.7	-63.8	-61.2	940.3	895.4
	Nine months ended September 30,
	Net interest income (2)		$	21,614	21,879	9,165	9,556	2,118	2,079	-900	-927	31,997	32,587
	Provision (reversal of provision)
		for credit losses		2,265	5,078	-320	226	-5	110	6	-28	1,946	5,386
	Noninterest income			16,471	17,744	8,927	8,543	7,647	6,987	-1,927	-1,723	31,118	31,551
	Noninterest expense			21,650	22,807	9,358	9,075	7,800	7,380	-2,051	-1,760	36,757	37,502
	Income (loss) before income
		tax expense (benefit)		14,170	11,738	9,054	8,798	1,970	1,576	-782	-862	24,412	21,250
	Income tax expense (benefit)			4,426	3,856	3,024	3,051	748	599	-297	-327	7,901	7,179
	Net income (loss) before
		noncontrolling interests		9,744	7,882	6,030	5,747	1,222	977	-485	-535	16,511	14,071
	Less: Net income from
		noncontrolling interests		234	259	8	5	1	-	-	-	243	264
	Net income (loss) (3)		$	9,510	7,623	6,022	5,742	1,221	977	-485	-535	16,268	13,807
	Average loans		$	498.3	485.1	287.3	272	45.3	42.5	-29.8	-28.4	801.1	771.2
	Average assets			819.2	750.1	498.9	479	179.4	162.2	-69.7	-64.9	1,427.80	1,326.40
	Average core deposits			620.1	585.3	230	222.4	148.8	135.5	-64.8	-61	934.1	882.2
	Includes corporate items not specific to a business segment and the elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for wealth management customers provided in Community Banking stores.
	Net interest income is the difference between interest earned on assets and the cost of liabilities to fund those assets. Interest earned includes actual interest earned on segment assets and, if the segment has excess liabilities, interest credits for providing funding to other segments. The cost of liabilities includes interest expense on segment liabilities and, if the segment does not have enough liabilities to fund its assets, a funding charge based on the cost of excess liabilities from another segment.
	Represents segment net income (loss) for Community Banking; Wholesale Banking; and Wealth, Brokerage and Retirement segments and Wells Fargo net income for the consolidated company.

Regulatory_and_Agency_Capital_1

Regulatory and Agency Capital Requirements (Tables)	9 Months Ended
	Sep. 30, 2013
Regulatory and Agency Capital Requirements (Tables) [Abstract]	'
Regulatory And Agency Capital Requirements	'
			Wells Fargo & Company			Wells Fargo Bank, N.A.		Well-	Minimum
			Sept. 30,		Dec. 31,	Sept. 30,	Dec. 31,	capitalized	capital
	(in billions, except ratios)		2013		2012	2013	2012	ratios (1)	ratios (1)
	Regulatory capital:
	Tier 1	$	137.5		126.6	110.2	101.3
	Total		171.3		157.6	137.3	124.8
	Assets:
	Risk-weighted	$	1,135.10		1,077.10	1,046.30	1,002.00
	Adjusted average (2)		1,408.50		1,336.40	1,262.80	1,195.90
	Capital ratios:
	Tier 1 capital		12.11	%	11.75	10.53	10.11	6	4
	Total capital		15.09		14.63	13.12	12.45	10	8
	Tier 1 leverage (2)		9.76		9.47	8.72	8.47	5	4
	As defined by the regulations issued by the Federal Reserve, OCC and FDIC.
	The leverage ratio consists of Tier 1 capital divided by quarterly average total assets, excluding goodwill and certain other items. The minimum leverage ratio guideline is 3% for banking organizations that do not anticipate significant growth and that have well-diversified risk, excellent asset quality, high liquidity, good earnings, effective management and monitoring of market risk and, in general, are considered top-rated, strong banking organizations.

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Supplemental cash flow information - Noncash activities	'	'
Transfers from (to) loans to (from) securities available for sale	$297	$921
Trading assets retained from securitizations of MHFS	39,963	68,905
Capitalization of MSRs from sale of MHFS	3,068	3,860
Transfers from MHFS to foreclosed assets	160	172
Transfers from loans to MHFS	6,199	5,523
Transfers from loans to LHFS	207	118
Transfers from loans to foreclosed assets	5,835	6,938
Changes in consolidations (deconsolidations) of variable interest entities:	'	'
Trading assets	1,950	0
Securities available for sale	0	-40
Loans	-2,268	-295
Long-term debt	-342	-338
Government insured/guaranteed [Member]	'	'
Supplemental cash flow information - Noncash activities	'	'
Transfers from loans to foreclosed assets	4,500	4,800
Private Forward Repurchase Transaction [Member]	'	'
Summary Of Significant Accounting Policies Textuals [Abstract]	'	'
Forward Contract Indexed to Issuer's Equity, Contract Amount	$400	'

Business_Combinations_Details

Business Combinations (Details)	9 Months Ended
	Sep. 30, 2013
Business Acquisition [Line Items]	'
Business Acquisition, Number Completed during period	0
Pending Acquisition [Member]	'
Business Acquisition [Line Items]	'
Business Acquisition, Number Completed during period	0

Federal_Funds_Sold_Securities_2

Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Federal Funds Sold, Securities Purchased Under Resale Agreements and Other Short-Term Investments	'	'
Federal funds sold and securities purchased under resale agreements	$27,093,000,000	$33,884,000,000
Interest-earning deposits	153,464,000,000	102,408,000,000
Other short-term investments	1,479,000,000	1,021,000,000
Total	182,036,000,000	137,313,000,000
Loans [Member]	'	'
Federal Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments Textual [Abstract]	'	'
Securities purchased under long-term resale agreements	$11,200,000,000	$9,500,000,000

Securities_Available_for_Sale_1

Securities Available for Sale Textuals (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	$253,606,000,000	'	$253,606,000,000	'	$223,283,000,000
Fair value	259,399,000,000	'	259,399,000,000	'	235,199,000,000
Gross unrealized losses	3,946,000,000	'	3,946,000,000	'	1,054,000,000
OTTI	39,000,000	39,000,000	153,000,000	172,000,000	'
Expected remaining life of loan losses From	1.00%	3.00%	1.00%	1.00%	'
Expected remaining life of loan losses To	14.00%	36.00%	20.00%	44.00%	'
Current subordination levels From	0.00%	0.00%	0.00%	0.00%	'
Current subordination levels To	3.00%	9.00%	41.00%	57.00%	'
Held-to-maturity Securities	0	'	0	'	0
Collateralized debt obligations [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	533,000,000	'	533,000,000	'	556,000,000
Fair value	700,000,000	'	700,000,000	'	644,000,000
Asset-backed Securities Collateralized by Auto Leases or Loans and Cash Reserves [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	5,100,000,000	'	5,100,000,000	'	5,900,000,000
Fair value	5,200,000,000	'	5,200,000,000	'	5,900,000,000
Asset-backed Securities Collateralized by Home Equity Loans [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	594,000,000	'	594,000,000	'	695,000,000
Fair value	831,000,000	'	831,000,000	'	918,000,000
Mortgage Backed Securities [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	148,613,000,000	'	148,613,000,000	'	125,471,000,000
Fair value	151,292,000,000	'	151,292,000,000	'	133,184,000,000
Gross unrealized losses	2,445,000,000	'	2,445,000,000	'	321,000,000
Federal agencies [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	118,793,000,000	'	118,793,000,000	'	92,855,000,000
Fair value	118,963,000,000	'	118,963,000,000	'	97,285,000,000
Gross unrealized losses	2,251,000,000	'	2,251,000,000	'	4,000,000
OTTI	0	0	1,000,000	0	'
Commercial [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Cost	17,704,000,000	'	17,704,000,000	'	18,438,000,000
Fair value	18,805,000,000	'	18,805,000,000	'	19,968,000,000
Gross unrealized losses	152,000,000	'	152,000,000	'	268,000,000
OTTI	6,000,000	8,000,000	47,000,000	41,000,000	'
Expected remaining life of loan losses From	4.00%	3.00%	4.00%	3.00%	'
Expected remaining life of loan losses To	14.00%	14.00%	14.00%	17.00%	'
Current subordination levels From	4.00%	0.00%	0.00%	0.00%	'
Current subordination levels To	12.00%	12.00%	21.00%	12.00%	'
Securities we Intend to Sell [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Fair value	0	'	0	'	0
Securities we do not Intend to Sell [Member] | Commercial [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
OTTI	6,000,000	7,000,000	21,000,000	41,000,000	'
Investment Grade [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Fair value	88,597,000,000	'	88,597,000,000	'	18,139,000,000
Gross unrealized losses	3,657,000,000	'	3,657,000,000	'	573,000,000
Investment Grade [Member] | Mortgage Backed Securities [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Fair value	56,667,000,000	'	56,667,000,000	'	4,435,000,000
Gross unrealized losses	2,311,000,000	'	2,311,000,000	'	38,000,000
Investment Grade [Member] | Federal agencies [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Fair value	52,557,000,000	'	52,557,000,000	'	2,247,000,000
Gross unrealized losses	2,251,000,000	'	2,251,000,000	'	4,000,000
Investment Grade [Member] | Commercial [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Fair value	3,909,000,000	'	3,909,000,000	'	2,110,000,000
Gross unrealized losses	58,000,000	'	58,000,000	'	31,000,000
Unrated Investment Grade Securities [Member]	'	'	'	'	'
Securities Available For Sale (Textual) [Abstract]	'	'	'	'	'
Fair value	2,000,000,000	'	2,000,000,000	'	2,000,000,000
Gross unrealized losses	$23,000,000	'	$23,000,000	'	$19,000,000

Securities_Available_for_Sale_2

Securities Available for Sale, Major Categories (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	$253,606	$223,283
Gross unrealized gains	9,739	12,970
Gross unrealized losses	-3,946	-1,054
Securities available for sale	259,399	235,199
Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	251,493	220,946
Gross unrealized gains	8,194	12,473
Gross unrealized losses	-3,868	-1,005
Securities available for sale	255,819	232,414
US Treasury and Government [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	6,647	7,099
Gross unrealized gains	19	47
Gross unrealized losses	-260	0
Securities available for sale	6,406	7,146
US States and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	42,172	37,120
Gross unrealized gains	1,013	2,000
Gross unrealized losses	-892	-444
Securities available for sale	42,293	38,676
Mortgage Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	148,613	125,471
Gross unrealized gains	5,124	8,034
Gross unrealized losses	-2,445	-321
Securities available for sale	151,292	133,184
Federal agencies [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	118,793	92,855
Gross unrealized gains	2,421	4,434
Gross unrealized losses	-2,251	-4
Securities available for sale	118,963	97,285
Residential [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	12,116	14,178
Gross unrealized gains	1,450	1,802
Gross unrealized losses	-42	-49
Securities available for sale	13,524	15,931
Commercial [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	17,704	18,438
Gross unrealized gains	1,253	1,798
Gross unrealized losses	-152	-268
Securities available for sale	18,805	19,968
Corporate debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	20,372	20,120
Gross unrealized gains	975	1,282
Gross unrealized losses	-149	-69
Securities available for sale	21,198	21,333
Collateralized loan and other debt obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	17,261	12,726
Gross unrealized gains	602	557
Gross unrealized losses	-87	-95
Securities available for sale	17,776	13,188
Other Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	16,428	18,410
Gross unrealized gains	461	553
Gross unrealized losses	-35	-76
Securities available for sale	16,854	18,887
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	2,113	2,337
Gross unrealized gains	1,545	497
Gross unrealized losses	-78	-49
Securities available for sale	3,580	2,785
Perpetual preferred securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	1,730	1,935
Gross unrealized gains	239	281
Gross unrealized losses	-71	-40
Securities available for sale	1,898	2,176
Other equity securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	383	402
Gross unrealized gains	1,306	216
Gross unrealized losses	-7	-9
Securities available for sale	$1,682	$609

Securities_Available_for_Sale_3

Securities Available for Sale, Gross Unrealized Losses and Fair Value (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	($3,292)	($108)
Less than 12 months, Fair Value	84,901	10,727
12 months or more, Gross Unrealized Losses	-654	-946
12 months or more, Fair Value	7,689	11,441
Total Gross Unrealized Losses	-3,946	-1,054
Total, Fair Value	92,590	22,168
Debt Securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-3,248	-96
Less than 12 months, Fair Value	84,413	10,563
12 months or more, Gross Unrealized Losses	-620	-909
12 months or more, Fair Value	7,383	10,903
Total Gross Unrealized Losses	-3,868	-1,005
Total, Fair Value	91,796	21,466
US Treasury and Government [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-260	0
Less than 12 months, Fair Value	5,862	0
12 months or more, Gross Unrealized Losses	0	0
12 months or more, Fair Value	0	0
Total Gross Unrealized Losses	-260	0
Total, Fair Value	5,862	0
US States and Political Subdivisions [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-528	-55
Less than 12 months, Fair Value	10,893	2,709
12 months or more, Gross Unrealized Losses	-364	-389
12 months or more, Fair Value	3,889	4,662
Total Gross Unrealized Losses	-892	-444
Total, Fair Value	14,782	7,371
Mortgage Backed Securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-2,295	-14
Less than 12 months, Fair Value	56,144	2,999
12 months or more, Gross Unrealized Losses	-150	-307
12 months or more, Fair Value	2,661	4,128
Total Gross Unrealized Losses	-2,445	-321
Total, Fair Value	58,805	7,127
Federal agencies [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-2,245	-4
Less than 12 months, Fair Value	52,043	2,247
12 months or more, Gross Unrealized Losses	-6	0
12 months or more, Fair Value	514	0
Total Gross Unrealized Losses	-2,251	-4
Total, Fair Value	52,557	2,247
Residential [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-19	-4
Less than 12 months, Fair Value	1,263	261
12 months or more, Gross Unrealized Losses	-23	-45
12 months or more, Fair Value	249	1,564
Total Gross Unrealized Losses	-42	-49
Total, Fair Value	1,512	1,825
Commercial [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-31	-6
Less than 12 months, Fair Value	2,838	491
12 months or more, Gross Unrealized Losses	-121	-262
12 months or more, Fair Value	1,898	2,564
Total Gross Unrealized Losses	-152	-268
Total, Fair Value	4,736	3,055
Corporate debt securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-100	-14
Less than 12 months, Fair Value	2,854	1,217
12 months or more, Gross Unrealized Losses	-49	-55
12 months or more, Fair Value	252	305
Total Gross Unrealized Losses	-149	-69
Total, Fair Value	3,106	1,522
Collateralized loan and other debt obligations [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-46	-2
Less than 12 months, Fair Value	5,653	1,485
12 months or more, Gross Unrealized Losses	-41	-93
12 months or more, Fair Value	356	798
Total Gross Unrealized Losses	-87	-95
Total, Fair Value	6,009	2,283
Other Debt Securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-19	-11
Less than 12 months, Fair Value	3,007	2,153
12 months or more, Gross Unrealized Losses	-16	-65
12 months or more, Fair Value	225	1,010
Total Gross Unrealized Losses	-35	-76
Total, Fair Value	3,232	3,163
Equity Securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-44	-12
Less than 12 months, Fair Value	488	164
12 months or more, Gross Unrealized Losses	-34	-37
12 months or more, Fair Value	306	538
Total Gross Unrealized Losses	-78	-49
Total, Fair Value	794	702
Perpetual preferred securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-37	-3
Less than 12 months, Fair Value	441	116
12 months or more, Gross Unrealized Losses	-34	-37
12 months or more, Fair Value	306	538
Total Gross Unrealized Losses	-71	-40
Total, Fair Value	747	654
Other equity securities [Member]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'
Less than 12 months, Gross Unrealized Losses	-7	-9
Less than 12 months, Fair Value	47	48
12 months or more, Gross Unrealized Losses	0	0
12 months or more, Fair Value	0	0
Total Gross Unrealized Losses	-7	-9
Total, Fair Value	$47	$48

Securities_Available_for_Sale_4

Securities Available for Sale, Unrealized Loss Position, by Credit Rating (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	($3,946)	($1,054)
Fair value	259,399	235,199
Debt Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-3,868	-1,005
Fair value	255,819	232,414
US Treasury and Government [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-260	0
Fair value	6,406	7,146
US States and Political Subdivisions [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-892	-444
Fair value	42,293	38,676
Mortgage Backed Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-2,445	-321
Fair value	151,292	133,184
Federal agencies [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-2,251	-4
Fair value	118,963	97,285
Residential [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-42	-49
Fair value	13,524	15,931
Commercial [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-152	-268
Fair value	18,805	19,968
Corporate debt securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-149	-69
Fair value	21,198	21,333
Collateralized loan and other debt obligations [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-87	-95
Fair value	17,776	13,188
Other Debt Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-35	-76
Fair value	16,854	18,887
Equity Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-78	-49
Fair value	3,580	2,785
Perpetual preferred securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-71	-40
Fair value	1,898	2,176
Investment Grade [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-3,657	-573
Fair value	88,597	18,139
Investment Grade [Member] | Debt Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-3,586	-533
Fair value	87,850	17,485
Investment Grade [Member] | US Treasury and Government [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-260	0
Fair value	5,862	0
Investment Grade [Member] | US States and Political Subdivisions [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-840	-378
Fair value	14,278	6,839
Investment Grade [Member] | Mortgage Backed Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-2,311	-38
Fair value	56,667	4,435
Investment Grade [Member] | Federal agencies [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-2,251	-4
Fair value	52,557	2,247
Investment Grade [Member] | Residential [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-2	-3
Fair value	201	78
Investment Grade [Member] | Commercial [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-58	-31
Fair value	3,909	2,110
Investment Grade [Member] | Corporate debt securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-89	-19
Fair value	2,184	1,112
Investment Grade [Member] | Collateralized loan and other debt obligations [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-64	-49
Fair value	5,809	2,065
Investment Grade [Member] | Other Debt Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-22	-49
Fair value	3,050	3,034
Investment Grade [Member] | Perpetual preferred securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-71	-40
Fair value	747	654
Non-investment Grade [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-282	-472
Fair value	3,946	3,981
Non-investment Grade [Member] | Debt Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-282	-472
Fair value	3,946	3,981
Non-investment Grade [Member] | US Treasury and Government [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	0	0
Fair value	0	0
Non-investment Grade [Member] | US States and Political Subdivisions [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-52	-66
Fair value	504	532
Non-investment Grade [Member] | Mortgage Backed Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-134	-283
Fair value	2,138	2,692
Non-investment Grade [Member] | Federal agencies [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	0	0
Fair value	0	0
Non-investment Grade [Member] | Residential [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-40	-46
Fair value	1,311	1,747
Non-investment Grade [Member] | Commercial [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-94	-237
Fair value	827	945
Non-investment Grade [Member] | Corporate debt securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-60	-50
Fair value	922	410
Non-investment Grade [Member] | Collateralized loan and other debt obligations [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-23	-46
Fair value	200	218
Non-investment Grade [Member] | Other Debt Securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	-13	-27
Fair value	182	129
Non-investment Grade [Member] | Perpetual preferred securities [Member]	'	'
Securities Available for Sale in an Unrealized Loss Position by Investment Grade [Abstract]	'	'
Gross unrealized losses	0	0
Fair value	$0	$0

Securities_Available_for_Sale_5

Securities Available for Sale, Contractual Maturities (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	$255,819	$232,414
Weighted Average Yield Contractual Maturities, Total	3.66%	3.91%
Due in 1 year, Contractual Maturities	11,655	5,034
Percentage of Weighted Average Yield, Due In 1 year	2.01%	2.28%
Due in 1-5 years, Contractual Maturities	27,207	36,092
Percentage of Weighted Average Yield, Due in 1-5 Years	2.51%	2.37%
Due in 5-10 years, Contractual Maturities	25,954	28,052
Percentage of Weighted Average Yield, Due In 5-10 years	3.09%	3.07%
Due in 10 years or More, Contractual Maturities	191,003	163,236
Percentage of Weighted Average Yield, Due After 10 Years	4.01%	4.44%
US Treasury and Government [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	6,406	7,146
Weighted Average Yield Contractual Maturities, Total	1.67%	1.59%
Due in 1 year, Contractual Maturities	134	376
Percentage of Weighted Average Yield, Due In 1 year	1.25%	0.43%
Due in 1-5 years, Contractual Maturities	700	661
Percentage of Weighted Average Yield, Due in 1-5 Years	1.42%	1.24%
Due in 5-10 years, Contractual Maturities	5,572	6,109
Percentage of Weighted Average Yield, Due In 5-10 years	1.71%	1.70%
Due in 10 years or More, Contractual Maturities	0	0
Percentage of Weighted Average Yield, Due After 10 Years	0.00%	0.00%
US States and Political Subdivisions [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	42,293	38,676
Weighted Average Yield Contractual Maturities, Total	5.23%	5.29%
Due in 1 year, Contractual Maturities	4,844	1,861
Percentage of Weighted Average Yield, Due In 1 year	1.84%	2.61%
Due in 1-5 years, Contractual Maturities	8,461	11,620
Percentage of Weighted Average Yield, Due in 1-5 Years	2.20%	2.18%
Due in 5-10 years, Contractual Maturities	3,177	3,380
Percentage of Weighted Average Yield, Due In 5-10 years	5.32%	5.51%
Due in 10 years or More, Contractual Maturities	25,811	21,815
Percentage of Weighted Average Yield, Due After 10 Years	6.85%	7.15%
Mortgage Backed Securities [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	151,292	133,184
Weighted Average Yield Contractual Maturities, Total	3.70%	4.12%
Due in 1 year, Contractual Maturities	0	1
Percentage of Weighted Average Yield, Due In 1 year	0.00%	5.40%
Due in 1-5 years, Contractual Maturities	487	184
Percentage of Weighted Average Yield, Due in 1-5 Years	2.78%	4.37%
Due in 5-10 years, Contractual Maturities	1,105	1,814
Percentage of Weighted Average Yield, Due In 5-10 years	3.46%	2.95%
Due in 10 years or More, Contractual Maturities	149,700	131,185
Percentage of Weighted Average Yield, Due After 10 Years	3.70%	4.13%
Federal agencies [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	118,963	97,285
Weighted Average Yield Contractual Maturities, Total	3.37%	3.82%
Due in 1 year, Contractual Maturities	0	1
Percentage of Weighted Average Yield, Due In 1 year	0.00%	5.40%
Due in 1-5 years, Contractual Maturities	435	106
Percentage of Weighted Average Yield, Due in 1-5 Years	2.71%	4.87%
Due in 5-10 years, Contractual Maturities	553	1,144
Percentage of Weighted Average Yield, Due In 5-10 years	4.84%	3.41%
Due in 10 years or More, Contractual Maturities	117,975	96,034
Percentage of Weighted Average Yield, Due After 10 Years	3.37%	3.83%
Residential [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	13,524	15,931
Weighted Average Yield Contractual Maturities, Total	4.24%	4.38%
Due in 1 year, Contractual Maturities	0	0
Percentage of Weighted Average Yield, Due In 1 year	0.00%	0.00%
Due in 1-5 years, Contractual Maturities	0	0
Percentage of Weighted Average Yield, Due in 1-5 Years	0.00%	0.00%
Due in 5-10 years, Contractual Maturities	452	569
Percentage of Weighted Average Yield, Due In 5-10 years	1.92%	2.06%
Due in 10 years or More, Contractual Maturities	13,072	15,362
Percentage of Weighted Average Yield, Due After 10 Years	4.32%	4.47%
Commercial [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	18,805	19,968
Weighted Average Yield Contractual Maturities, Total	5.36%	5.33%
Due in 1 year, Contractual Maturities	0	0
Percentage of Weighted Average Yield, Due In 1 year	0.00%	0.00%
Due in 1-5 years, Contractual Maturities	52	78
Percentage of Weighted Average Yield, Due in 1-5 Years	3.33%	3.69%
Due in 5-10 years, Contractual Maturities	100	101
Percentage of Weighted Average Yield, Due In 5-10 years	2.77%	2.84%
Due in 10 years or More, Contractual Maturities	18,653	19,789
Percentage of Weighted Average Yield, Due After 10 Years	5.38%	5.35%
Corporate debt securities [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	21,198	21,333
Weighted Average Yield Contractual Maturities, Total	4.21%	4.26%
Due in 1 year, Contractual Maturities	4,944	1,037
Percentage of Weighted Average Yield, Due In 1 year	2.39%	4.29%
Due in 1-5 years, Contractual Maturities	8,547	12,792
Percentage of Weighted Average Yield, Due in 1-5 Years	3.77%	3.19%
Due in 5-10 years, Contractual Maturities	6,371	6,099
Percentage of Weighted Average Yield, Due In 5-10 years	5.86%	6.14%
Due in 10 years or More, Contractual Maturities	1,336	1,405
Percentage of Weighted Average Yield, Due After 10 Years	5.78%	5.88%
Collateralized loan and other debt obligations [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	17,776	13,188
Weighted Average Yield Contractual Maturities, Total	1.53%	1.35%
Due in 1 year, Contractual Maturities	40	44
Percentage of Weighted Average Yield, Due In 1 year	0.25%	0.96%
Due in 1-5 years, Contractual Maturities	915	1,246
Percentage of Weighted Average Yield, Due in 1-5 Years	0.67%	0.71%
Due in 5-10 years, Contractual Maturities	7,185	7,376
Percentage of Weighted Average Yield, Due In 5-10 years	1.14%	1.01%
Due in 10 years or More, Contractual Maturities	9,636	4,522
Percentage of Weighted Average Yield, Due After 10 Years	1.90%	2.08%
Other Debt Securities [Member]	'	'
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]	'	'
Contractual Maturities,Total	16,854	18,887
Weighted Average Yield Contractual Maturities, Total	1.74%	1.85%
Due in 1 year, Contractual Maturities	1,693	1,715
Percentage of Weighted Average Yield, Due In 1 year	1.50%	1.14%
Due in 1-5 years, Contractual Maturities	8,097	9,589
Percentage of Weighted Average Yield, Due in 1-5 Years	1.77%	1.75%
Due in 5-10 years, Contractual Maturities	2,544	3,274
Percentage of Weighted Average Yield, Due In 5-10 years	1.75%	2.11%
Due in 10 years or More, Contractual Maturities	$4,520	$4,309
Percentage of Weighted Average Yield, Due After 10 Years	1.78%	2.14%

Securities_Available_for_Sale_6

Securities Available for Sale, Realized Gains and Losses (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]	'	'	'	'
Gross realized gains	$161	$110	$371	$527
Gross realized losses	-8	-29	-21	-65
OTTI Write-downs	-39	-39	-153	-172
Net realized gains from securities available for sale	114	42	197	290
Net realized gains (losses) from nonmarketable equity investments	382	125	606	415
Net realized gains from debt securities and equity investments	$496	$167	$803	$705

Securities_Available_for_Sale_7

Securities Available for Sale, Other-Than-Temporary Impairment (OTTI), Included in Earnings (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	$39	$39	$153	$172
Nonmarketable equity investments	21	33	96	85
Total OTTI write-downs included in earnings	60	72	249	257
Debt Securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	23	36	128	163
US States and Political Subdivisions [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	0	0	0	9
Residential [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	16	17	53	65
Commercial [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	6	8	47	41
Federal agencies [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	0	0	1	0
Corporate debt securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	0	5	2	9
Collateralized loan and other debt obligations [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	0	0	0	1
Other Debt Securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	1	6	25	38
Equity Securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	16	3	25	9
Perpetual preferred securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	0	2	0	8
Other equity securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Securities available for sale	$16	$1	$25	$1

Securities_Available_for_Sale_8

Securities Available for Sale, Other-Than-Temporary Impaired Debt Securities (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	$39	$39	$153	$172
Total changes to OCI for non-credit-related OTTI	-36	-137	-92	-182
Total OTTI losses (gains) recorded on debt securities	-13	-101	36	-19
Debt Securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	23	36	128	163
Total changes to OCI for non-credit-related OTTI	-36	-137	-92	-182
Total OTTI losses (gains) recorded on debt securities	-13	-101	36	-19
Debt Securities [Member] | Credit-related OTTI [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	23	36	79	160
Debt Securities [Member] | Intent-to-sell OTTI [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	0	0	49	3
US States and Political Subdivisions [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	0	0	0	9
Total changes to OCI for non-credit-related OTTI	0	0	0	-7
Residential [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	16	17	53	65
Total changes to OCI for non-credit-related OTTI	-2	-85	-18	-148
Commercial [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	6	8	47	41
Total changes to OCI for non-credit-related OTTI	-33	-56	-74	-62
Collateralized loan and other debt obligations [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	0	0	0	1
Total changes to OCI for non-credit-related OTTI	0	-1	-1	0
Other Debt Securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	1	6	25	38
Total changes to OCI for non-credit-related OTTI	-1	-1	1	30
Corporate debt securities [Member]	'	'	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract]	'	'	'	'
Total OTTI recorded as part of gross realized losses	0	5	2	9
Total changes to OCI for non-credit-related OTTI	$0	$6	$0	$5

Securities_Available_for_Sale_9

Securities Available for Sale, Credit Loss Component (Details) (Debt Securities [Member], USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Debt Securities [Member]	'	'	'	'
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]	'	'	'	'
Credit loss component, beginning of period	$1,218	$1,314	$1,289	$1,272
Initial credit impairments	6	14	11	50
Subsequent credit impairments	17	22	68	110
Total Additions	23	36	79	160
For securities sold or matured	-30	-100	-141	-170
For recoveries of previous credit impairments	-7	-5	-23	-17
Total reductions	-37	-105	-164	-187
Credit loss component, end of period	$1,204	$1,245	$1,204	$1,245

Recovered_Sheet1

Securities Available for Sale, Residential Mortgage-Backed Securities, Credit Loss Component (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Credit Impairment Losses On Residential Mortgage Backed Securities [Abstract]	'	'	'	'
Securities available for sale	$39	$39	$153	$172
Significant inputs (non-agency - non-investment grade MBS) [Abstract]	'	'	'	'
Expected remaining life of loan losses From	1.00%	3.00%	1.00%	1.00%
Expected remaining life of loan losses To	14.00%	36.00%	20.00%	44.00%
Credit impairment distribution [Abstract]	'	'	'	'
0 - 10% range	78.00%	95.00%	91.00%	71.00%
10 - 20% range	22.00%	5.00%	8.00%	13.00%
20 - 30% range	0.00%	0.00%	1.00%	6.00%
Greater than 30%	0.00%	0.00%	0.00%	10.00%
Weighted average	5.00%	7.00%	6.00%	9.00%
Current subordination levels [Abstract]	'	'	'	'
Current subordination levels From	0.00%	0.00%	0.00%	0.00%
Current subordination levels To	3.00%	9.00%	41.00%	57.00%
Current subordination levels Weighted average	0.00%	3.00%	0.00%	2.00%
Prepayment speed (annual CPR)	'	'	'	'
Prepayment speed From	6.00%	9.00%	4.00%	5.00%
Prepayment speed To	18.00%	23.00%	20.00%	29.00%
Prepayment speed Weighted average	16.00%	16.00%	16.00%	15.00%
Residential [Member]	'	'	'	'
Credit Impairment Losses On Residential Mortgage Backed Securities [Abstract]	'	'	'	'
Securities available for sale	16	17	53	65
Non-investment Grade [Member] | Residential [Member]	'	'	'	'
Credit Impairment Losses On Residential Mortgage Backed Securities [Abstract]	'	'	'	'
Securities available for sale	$16	$17	$53	$65

Loans_and_Allowance_for_Credit2

Loans and Allowance for Credit Losses Textual (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Unearned income, net deferred loan fees and unamortized discount and premium	$6,500,000,000	'	$6,500,000,000	'	$7,400,000,000
Loan charge-offs	1,439,000,000	2,871,000,000	4,969,000,000	8,440,000,000	'
Allowance for Credit Losses, Purchased Credit-Impaired	22,000,000	160,000,000	22,000,000	160,000,000	117,000,000
Financing Receivable, Recorded Investment, nonaccrual status	16,893,000,000	'	16,893,000,000	'	20,486,000,000
90 days or more past due and still accruing	22,181,000,000	'	22,181,000,000	'	23,245,000,000
Impaired loans, Recorded Investment	28,847,000,000	'	28,847,000,000	'	30,012,000,000
Unpaid principal balance	34,860,000,000	'	34,860,000,000	'	36,255,000,000
Total unfunded loan commitments on troubled debt restructurings	415,000,000	'	415,000,000	'	421,000,000
Financing Receivable Modifications, principal forgiven	87,000,000	141,000,000	316,000,000	362,000,000	'
Other concessions, primary modification type	1,689,000,000	5,400,000,000	5,680,000,000	8,543,000,000	'
High Value Properties, Threshold	1,000,000	'	1,000,000	'	'
Loans remodified	807,000,000	652,000,000	2,400,000,000	1,800,000,000	'
Home Affordable Modification Program [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Impaired loans, Recorded Investment	314,000,000	'	314,000,000	'	402,000,000
Second Lien Modification Program [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Impaired loans, Recorded Investment	48,000,000	'	48,000,000	'	45,000,000
Proprietary Program [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Impaired loans, Recorded Investment	355,000,000	'	355,000,000	'	258,000,000
Purchased Credit-Impaired Loans [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	4,900,000,000	'	4,900,000,000	'	6,000,000,000
Trial modifications [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Impaired loans, Recorded Investment	717,000,000	'	717,000,000	'	705,000,000
Trial modifications [Member] | Financing Receivable Accruing [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Impaired loans, Recorded Investment	305,000,000	'	305,000,000	'	276,000,000
Trial modifications [Member] | Financing Receivable Nonaccruing [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Impaired loans, Recorded Investment	412,000,000	'	412,000,000	'	429,000,000
Commercial and Industrial Loans [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	151,000,000	285,000,000	516,000,000	1,004,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	809,000,000	'	809,000,000	'	1,422,000,000
Impaired loans, Recorded Investment	1,418,000,000	'	1,418,000,000	'	2,086,000,000
Unpaid principal balance	2,343,000,000	'	2,343,000,000	'	3,331,000,000
Commercial and Industrial Loans [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	5,000,000	'	5,000,000	'	23,000,000
Commercial Real Estate Mortgage [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	44,000,000	100,000,000	153,000,000	296,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	2,496,000,000	'	2,496,000,000	'	3,322,000,000
Impaired loans, Recorded Investment	3,765,000,000	'	3,765,000,000	'	4,673,000,000
Unpaid principal balance	4,788,000,000	'	4,788,000,000	'	5,766,000,000
Commercial Real Estate Mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	53,000,000	'	53,000,000	'	140,000,000
Commercial Real Estate Construction [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	6,000,000	41,000,000	18,000,000	181,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	517,000,000	'	517,000,000	'	1,003,000,000
Impaired loans, Recorded Investment	789,000,000	'	789,000,000	'	1,345,000,000
Unpaid principal balance	1,125,000,000	'	1,125,000,000	'	1,975,000,000
Commercial Real Estate Construction [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	82,000,000	'	82,000,000	'	127,000,000
Commercial Real Estate Mortgage and Construction Loans [Member] | Criticized [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loans, excluding Purchased Credit Impaired Loans	14,600,000,000	'	14,600,000,000	'	'
Financing Receivable, Recorded Investment, nonaccrual status	3,000,000,000	'	3,000,000,000	'	'
Total Commercial [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	208,000,000	466,000,000	740,000,000	1,580,000,000	'
Allowance for Credit Losses, Purchased Credit-Impaired	17,000,000	'	17,000,000	'	88,000,000
Financing Receivable, Recorded Investment, nonaccrual status	3,886,000,000	'	3,886,000,000	'	5,824,000,000
Impaired loans, Recorded Investment	6,018,000,000	'	6,018,000,000	'	8,186,000,000
Unpaid principal balance	8,420,000,000	'	8,420,000,000	'	11,235,000,000
Total Commercial [Member] | Loans held for sale [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Financing Receivable, Recorded Investment, nonaccrual status	26,000,000	'	26,000,000	'	16,000,000
Total Commercial [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	239,000,000	'	239,000,000	'	457,000,000
Total Consumer [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	1,231,000,000	2,405,000,000	4,229,000,000	6,860,000,000	'
Allowance for Credit Losses, Purchased Credit-Impaired	5,000,000	'	5,000,000	'	29,000,000
Financing Receivable, Recorded Investment, nonaccrual status	13,007,000,000	'	13,007,000,000	'	14,662,000,000
Financing Receivable, Recorded Investment, equal to or greater than 90 days past due	8,300,000,000	'	8,300,000,000	'	10,300,000,000
90 days or more past due and still accruing	883,000,000	'	883,000,000	'	1,100,000,000
Impaired loans, Recorded Investment	22,829,000,000	'	22,829,000,000	'	21,826,000,000
Unpaid principal balance	26,440,000,000	'	26,440,000,000	'	25,020,000,000
Total Consumer [Member] | Loans Discharged in Bankruptcy [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Other concessions, primary modification type	703,000,000	4,300,000,000	2,600,000,000	4,300,000,000	'
Real estate 1-4 family first mortgage [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	303,000,000	719,000,000	1,170,000,000	2,319,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	10,450,000,000	'	10,450,000,000	'	11,455,000,000
Financing Receivables equal to or greater than 180 days past due, Percentage of Portfolio	2.40%	'	2.40%	'	3.00%
Impaired loans, Recorded Investment	19,614,000,000	'	19,614,000,000	'	18,472,000,000
Unpaid principal balance	22,625,000,000	'	22,625,000,000	'	21,293,000,000
Real estate 1-4 family first mortgage [Member] | Mortgages held for sale [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Financing Receivable, Recorded Investment, nonaccrual status	288,000,000	'	288,000,000	'	336,000,000
Real estate 1-4 family junior lien mortgage [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	345,000,000	1,095,000,000	1,287,000,000	2,672,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	2,333,000,000	'	2,333,000,000	'	2,922,000,000
Impaired loans, Recorded Investment	2,516,000,000	'	2,516,000,000	'	2,483,000,000
Unpaid principal balance	3,053,000,000	'	3,053,000,000	'	2,855,000,000
Automobile [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	153,000,000	152,000,000	443,000,000	462,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	188,000,000	'	188,000,000	'	245,000,000
Impaired loans, Recorded Investment	212,000,000	'	212,000,000	'	314,000,000
Unpaid principal balance	265,000,000	'	265,000,000	'	314,000,000
FHA Insured/VA Guaranteed [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	20,214,000,000	'	20,214,000,000	'	20,745,000,000
FHA Insured/VA Guaranteed [Member] | Financing Receivable 90 Days Or More Past Due [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Government insured/guaranteed loans	19,700,000,000	'	19,700,000,000	'	20,200,000,000
FHA Insured/VA Guaranteed [Member] | Impaired Loans [Member] | Financing Receivable Accruing [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Government insured/guaranteed loans	2,400,000,000	'	2,400,000,000	'	1,900,000,000
FHA Insured, VA Or FFELP Guaranteed [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Financing Receivable, certain purchases net of certain transfers to held for sale	2,400,000,000	1,500,000,000	5,200,000,000	7,000,000,000	'
90 days or more past due and still accruing	21,100,000,000	'	21,100,000,000	'	21,800,000,000
Student Loans under FFELP [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
90 days or more past due and still accruing	917,000,000	'	917,000,000	'	1,065,000,000
Student Loans under FFELP [Member] | Financing Receivable 90 Days Or More Past Due [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Government insured/guaranteed loans	917,000,000	'	917,000,000	'	1,100,000,000
Lease Financing [Member]	'	'	'	'	'
Accounts Notes Loans And Financing Receivable (Textual) [Abstract]	'	'	'	'	'
Loan charge-offs	3,000,000	5,000,000	30,000,000	18,000,000	'
Financing Receivable, Recorded Investment, nonaccrual status	17,000,000	'	17,000,000	'	27,000,000
Impaired loans, Recorded Investment	24,000,000	'	24,000,000	'	39,000,000
Unpaid principal balance	$58,000,000	'	$58,000,000	'	$54,000,000

Loans_and_Allowance_for_Credit3

Loans and Allowance for Credit Losses, Loans Outstanding (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	$812,325	$799,574
Total Commercial [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	372,045	361,198
Commercial and Industrial Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	191,738	187,759
Commercial Real Estate Mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	105,540	106,340
Commercial Real Estate Construction [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	16,413	16,904
Lease Financing [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	11,688	12,424
Foreign Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	46,666	37,771
Total Consumer [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	440,280	438,376
Real estate 1-4 family first mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	254,924	249,900
Real estate 1-4 family junior lien mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	67,675	75,465
Credit Card [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	25,448	24,640
Automobile [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	49,693	45,998
Other revolving credit and installment [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loans	$42,540	$42,373

Loans_and_Allowance_for_Credit4

Loans and Allowance for Credit Losses, Significant Activity (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Loans and Allowance for Credit Losses, Significant Activity [Abstract]	'	'	'	'
Purchases	$6,226	$1,021	$9,955	$10,363
Sales	-1,201	-960	-5,459	-4,218
Transfers (to) MHFS/LHFS	-68	-46	-213	-69
Commercial Portfolio Segment [Member]	'	'	'	'
Loans and Allowance for Credit Losses, Significant Activity [Abstract]	'	'	'	'
Purchases	6,226	1,021	9,374	10,196
Sales	-1,177	-796	-4,989	-3,731
Transfers (to) MHFS/LHFS	-65	-41	-198	-59
Consumer Portfolio Segment [Member]	'	'	'	'
Loans and Allowance for Credit Losses, Significant Activity [Abstract]	'	'	'	'
Purchases	0	0	581	167
Sales	-24	-164	-470	-487
Transfers (to) MHFS/LHFS	($3)	($5)	($15)	($10)

Loans_and_Allowance_for_Credit5

Loans and Allowance for Credit Losses, Commitments to Lend (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	$443,672	$423,665
Total Commercial [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	261,329	239,323
Commercial and Industrial Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	231,576	215,626
Commercial Real Estate Mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	5,913	6,165
Commercial Real Estate Construction [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	10,180	9,109
Foreign Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	13,660	8,423
Total Consumer [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	182,343	184,342
Real estate 1-4 family first mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	33,845	42,657
Real estate 1-4 family junior lien mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	48,145	50,934
Credit Card [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	77,187	70,960
Other revolving credit and installment [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total unfunded credit commitments	$23,165	$19,791

Loans_and_Allowance_for_Credit6

Loans and Allowance for Credit Losses, Allowance for Credit Losses (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Allowance for credit losses, beginning balance	$16,618	$18,646	$17,477	$19,668	'
Provision for credit losses	75	1,591	1,946	5,386	'
Interest income on certain impaired loans	-63	-76	-209	-245	'
Loan charge-offs	-1,439	-2,871	-4,969	-8,440	'
Loan recoveries	464	513	1,423	1,487	'
Net loan charge-offs	-975	-2,358	-3,546	-6,953	'
Allowances related to business combinations/other	-8	0	-21	-53	'
Allowance for credit losses, ending balance	15,647	17,803	15,647	17,803	'
Components: Allowance for loan losses	15,159	17,385	15,159	17,385	17,060
Components: Allowance for unfunded credit commitments	488	418	488	418	'
Components: Allowance for credit losses	15,647	17,803	15,647	17,803	'
Net loan charge-offs (annualized) as a percentage of average total loans	0.48%	1.21%	0.59%	1.20%	'
Allowance for loan losses as a percentage of total loans	1.87%	2.22%	1.87%	2.22%	'
Allowance for credit losses as a percentage of total loans	1.93%	2.27%	1.93%	2.27%	'
Total Commercial [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Allowance for credit losses, beginning balance	5,896	6,159	5,714	6,358	'
Provision for credit losses	65	-108	429	490	'
Interest income on certain impaired loans	-11	-22	-46	-76	'
Loan charge-offs	-208	-466	-740	-1,580	'
Loan recoveries	189	249	587	620	'
Net loan charge-offs	-19	-217	-153	-960	'
Allowances related to business combinations/other	-8	0	-21	0	'
Allowance for credit losses, ending balance	5,923	5,812	5,923	5,812	'
Components: Allowance for credit losses	5,923	5,812	5,923	5,812	'
Commercial and Industrial Loans [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-151	-285	-516	-1,004	'
Loan recoveries	93	154	288	368	'
Commercial Real Estate Mortgage [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-44	-100	-153	-296	'
Loan recoveries	64	46	149	115	'
Commercial Real Estate Construction [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-6	-41	-18	-181	'
Loan recoveries	23	40	114	96	'
Lease Financing [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-3	-5	-30	-18	'
Loan recoveries	3	4	13	15	'
Foreign Loans [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-4	-35	-23	-81	'
Loan recoveries	6	5	23	26	'
Total Consumer [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Allowance for credit losses, beginning balance	10,722	12,487	11,763	13,310	'
Provision for credit losses	10	1,699	1,517	4,896	'
Interest income on certain impaired loans	-52	-54	-163	-169	'
Loan charge-offs	-1,231	-2,405	-4,229	-6,860	'
Loan recoveries	275	264	836	867	'
Net loan charge-offs	-956	-2,141	-3,393	-5,993	'
Allowances related to business combinations/other	0	0	0	-53	'
Allowance for credit losses, ending balance	9,724	11,991	9,724	11,991	'
Components: Allowance for credit losses	9,724	11,991	9,724	11,991	'
Real estate 1-4 family first mortgage [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-303	-719	-1,170	-2,319	'
Loan recoveries	61	46	171	112	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-345	-1,095	-1,287	-2,672	'
Loan recoveries	70	59	204	184	'
Credit Card [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-239	-255	-771	-842	'
Loan recoveries	32	43	95	148	'
Automobile [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-153	-152	-443	-462	'
Loan recoveries	75	77	247	285	'
Other revolving credit and installment [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'
Loan charge-offs	-191	-184	-558	-565	'
Loan recoveries	$37	$39	$119	$138	'

Loans_and_Allowance_for_Credit7

Loans and Allowance for Credit Losses, Allowance for Credit Losses by Category (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Allowance for credit losses, beginning balance	$16,618	$18,646	$17,477	$19,668
Provision for credit losses	75	1,591	1,946	5,386
Interest income on certain impaired loans	-63	-76	-209	-245
Loan charge-offs	-1,439	-2,871	-4,969	-8,440
Loan recoveries	464	513	1,423	1,487
Net loan charge-offs	-975	-2,358	-3,546	-6,953
Allowances related to business combinations/other	-8	0	-21	-53
Allowance for credit losses, ending balance	15,647	17,803	15,647	17,803
Commercial Portfolio Segment [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Allowance for credit losses, beginning balance	5,896	6,159	5,714	6,358
Provision for credit losses	65	-108	429	490
Interest income on certain impaired loans	-11	-22	-46	-76
Loan charge-offs	-208	-466	-740	-1,580
Loan recoveries	189	249	587	620
Net loan charge-offs	-19	-217	-153	-960
Allowances related to business combinations/other	-8	0	-21	0
Allowance for credit losses, ending balance	5,923	5,812	5,923	5,812
Consumer Portfolio Segment [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Allowance for credit losses, beginning balance	10,722	12,487	11,763	13,310
Provision for credit losses	10	1,699	1,517	4,896
Interest income on certain impaired loans	-52	-54	-163	-169
Loan charge-offs	-1,231	-2,405	-4,229	-6,860
Loan recoveries	275	264	836	867
Net loan charge-offs	-956	-2,141	-3,393	-5,993
Allowances related to business combinations/other	0	0	0	-53
Allowance for credit losses, ending balance	$9,724	$11,991	$9,724	$11,991

Loans_and_Allowance_for_Credit8

Loans and Allowance for Credit Losses, Loans by Credit Impairment Methodology (Details) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2008
In Millions, unless otherwise specified
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]	'	'	'	'	'	'	'
Allowance for Credit Losses, Collectively evaluated	$10,039	'	$11,475	'	'	'	'
Allowance for Credit Losses, Individually evaluated	5,586	'	5,885	'	'	'	'
Allowance for Credit Losses, Purchased Credit-Impaired	22	'	117	160	'	'	'
Total allowance for credit losses	15,647	16,618	17,477	17,803	18,646	19,668	'
Financing Receivable, Collectively evaluated	755,644	'	738,594	'	'	'	'
Financing Receivable, Individually evaluated	28,847	'	30,012	'	'	'	'
Purchased Credit Impaired Loans	27,834	'	30,968	'	'	'	58,797
Loans	812,325	'	799,574	'	'	'	'
Commercial Portfolio Segment [Member]	'	'	'	'	'	'	'
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]	'	'	'	'	'	'	'
Allowance for Credit Losses, Collectively evaluated	4,566	'	3,951	'	'	'	'
Allowance for Credit Losses, Individually evaluated	1,340	'	1,675	'	'	'	'
Allowance for Credit Losses, Purchased Credit-Impaired	17	'	88	'	'	'	'
Total allowance for credit losses	5,923	5,896	5,714	5,812	6,159	6,358	'
Financing Receivable, Collectively evaluated	363,050	'	349,035	'	'	'	'
Financing Receivable, Individually evaluated	6,018	'	8,186	'	'	'	'
Purchased Credit Impaired Loans	2,977	'	3,977	'	'	'	18,704
Loans	372,045	'	361,198	'	'	'	'
Consumer Portfolio Segment [Member]	'	'	'	'	'	'	'
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]	'	'	'	'	'	'	'
Allowance for Credit Losses, Collectively evaluated	5,473	'	7,524	'	'	'	'
Allowance for Credit Losses, Individually evaluated	4,246	'	4,210	'	'	'	'
Allowance for Credit Losses, Purchased Credit-Impaired	5	'	29	'	'	'	'
Total allowance for credit losses	9,724	10,722	11,763	11,991	12,487	13,310	'
Financing Receivable, Collectively evaluated	392,594	'	389,559	'	'	'	'
Financing Receivable, Individually evaluated	22,829	'	21,826	'	'	'	'
Purchased Credit Impaired Loans	24,857	'	26,991	'	'	'	40,093
Loans	$440,280	'	$438,376	'	'	'	'

Loans_and_Allowance_for_Credit9

Loans and Allowance for Credit Losses, Loans by Credit Quality Indicator, Commercial (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	$27,834	$30,968	$58,797
Loans	812,325	799,574	'
Total Commercial [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	2,977	3,977	18,704
Loans	372,045	361,198	'
Commercial and Industrial Loans [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	210	259	4,580
Loans	191,738	187,759	'
Commercial Real Estate Mortgage [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	1,419	1,970	5,803
Loans	105,540	106,340	'
Commercial Real Estate Construction [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	605	877	6,462
Loans	16,413	16,904	'
Lease Financing [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	0	0	'
Loans	11,688	12,424	'
Foreign Loans [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Purchased Credit Impaired Loans	743	871	1,859
Loans	46,666	37,771	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	369,068	357,221	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Total Commercial [Member] | Pass [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	335,112	315,867	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Total Commercial [Member] | Criticized [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	33,956	41,354	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	191,528	187,500	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member] | Pass [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	175,435	169,293	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member] | Criticized [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	16,093	18,207	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	104,121	104,370	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member] | Pass [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	91,622	87,183	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member] | Criticized [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	12,499	17,187	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	15,808	16,027	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member] | Pass [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	13,730	12,224	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member] | Criticized [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	2,078	3,803	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Lease Financing [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	11,688	12,424	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Lease Financing [Member] | Pass [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	11,207	11,787	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Lease Financing [Member] | Criticized [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	481	637	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	45,923	36,900	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member] | Pass [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	43,118	35,380	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member] | Criticized [Member]	'	'	'
Loans and Leases Receivable Disclosure [Abstract]	'	'	'
Loans, excluding Purchased Credit Impaired Loans	$2,805	$1,520	'

Recovered_Sheet2

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
90+ DPD and still accruing	$22,181	$23,245	'
Nonaccrual loans	16,893	20,486	'
Purchased Credit Impaired Loans	27,834	30,968	58,797
Loans	812,325	799,574	'
Total Commercial [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Nonaccrual loans	3,886	5,824	'
Purchased Credit Impaired Loans	2,977	3,977	18,704
Loans	372,045	361,198	'
Commercial and Industrial Loans [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Nonaccrual loans	809	1,422	'
Purchased Credit Impaired Loans	210	259	4,580
Loans	191,738	187,759	'
Commercial Real Estate Mortgage [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Nonaccrual loans	2,496	3,322	'
Purchased Credit Impaired Loans	1,419	1,970	5,803
Loans	105,540	106,340	'
Commercial Real Estate Construction [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Nonaccrual loans	517	1,003	'
Purchased Credit Impaired Loans	605	877	6,462
Loans	16,413	16,904	'
Lease Financing [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Nonaccrual loans	17	27	'
Purchased Credit Impaired Loans	0	0	'
Loans	11,688	12,424	'
Foreign Loans [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Nonaccrual loans	47	50	'
Purchased Credit Impaired Loans	743	871	1,859
Loans	46,666	37,771	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD and still accruing	363,836	349,973	'
30-89 DPD and still accruing	1,179	1,121	'
90+ DPD and still accruing	167	303	'
Nonaccrual loans	3,886	5,824	'
Loans, excluding Purchased Credit Impaired Loans	369,068	357,221	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD and still accruing	190,267	185,614	'
30-89 DPD and still accruing	327	417	'
90+ DPD and still accruing	125	47	'
Nonaccrual loans	809	1,422	'
Loans, excluding Purchased Credit Impaired Loans	191,528	187,500	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD and still accruing	101,046	100,317	'
30-89 DPD and still accruing	539	503	'
90+ DPD and still accruing	40	228	'
Nonaccrual loans	2,496	3,322	'
Loans, excluding Purchased Credit Impaired Loans	104,121	104,370	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD and still accruing	15,019	14,861	'
30-89 DPD and still accruing	271	136	'
90+ DPD and still accruing	1	27	'
Nonaccrual loans	517	1,003	'
Loans, excluding Purchased Credit Impaired Loans	15,808	16,027	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Lease Financing [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD and still accruing	11,634	12,344	'
30-89 DPD and still accruing	37	53	'
90+ DPD and still accruing	0	0	'
Nonaccrual loans	17	27	'
Loans, excluding Purchased Credit Impaired Loans	11,688	12,424	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD and still accruing	45,870	36,837	'
30-89 DPD and still accruing	5	12	'
90+ DPD and still accruing	1	1	'
Nonaccrual loans	47	50	'
Loans, excluding Purchased Credit Impaired Loans	$45,923	$36,900	'

Recovered_Sheet3

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Loans	812,325	799,574	'
Total Consumer [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	40,093
Loans	440,280	438,376	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Loans	254,924	249,900	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Loans	67,675	75,465	'
Credit Card [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	0	0	'
Loans	25,448	24,640	'
Automobile [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	0	0	151
Loans	49,693	45,998	'
Other revolving credit and installment [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	0	0	'
Loans	42,540	42,373	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Total Consumer [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD	360,417	351,621	'
30-59 DPD	4,222	5,049	'
60-89 DPD	1,867	2,282	'
90-119 DPD	1,068	1,370	'
120-179 DPD	1,240	1,719	'
180+ DPD	5,976	7,179	'
Government insured/guaranteed loans	40,633	42,165	'
Loans, excluding Purchased Credit Impaired Loans	415,423	411,385	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Real estate 1-4 family first mortgage [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD	189,734	179,870	'
30-59 DPD	2,775	3,295	'
60-89 DPD	1,209	1,528	'
90-119 DPD	648	853	'
120-179 DPD	800	1,141	'
180+ DPD	5,472	6,655	'
Government insured/guaranteed loans	29,556	29,719	'
Loans, excluding Purchased Credit Impaired Loans	230,194	223,061	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD	65,911	73,256	'
30-59 DPD	453	577	'
60-89 DPD	265	339	'
90-119 DPD	180	265	'
120-179 DPD	244	358	'
180+ DPD	495	518	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	67,548	75,313	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Credit Card [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD	24,836	23,976	'
30-59 DPD	196	211	'
60-89 DPD	131	143	'
90-119 DPD	112	122	'
120-179 DPD	172	187	'
180+ DPD	1	1	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	25,448	24,640	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Automobile [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD	48,821	44,973	'
30-59 DPD	654	798	'
60-89 DPD	155	164	'
90-119 DPD	57	57	'
120-179 DPD	5	5	'
180+ DPD	1	1	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	49,693	45,998	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Other revolving credit and installment [Member]	'	'	'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'	'
Current-29 DPD	31,115	29,546	'
30-59 DPD	144	168	'
60-89 DPD	107	108	'
90-119 DPD	71	73	'
120-179 DPD	19	28	'
180+ DPD	7	4	'
Government insured/guaranteed loans	11,077	12,446	'
Loans, excluding Purchased Credit Impaired Loans	$42,540	$42,373	'

Recovered_Sheet4

Loans and Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Loans	812,325	799,574	'
Total Consumer [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	40,093
Loans	440,280	438,376	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Loans	254,924	249,900	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Loans	67,675	75,465	'
Credit Card [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	0	0	'
Loans	25,448	24,640	'
Automobile [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	0	0	151
Loans	49,693	45,998	'
Other revolving credit and installment [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	0	0	'
Loans	42,540	42,373	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Total Consumer [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Less than 600	31,413	35,189	'
600-639	21,777	22,232	'
640-679	36,535	36,263	'
680-719	53,137	52,716	'
720-759	64,440	63,337	'
760-799	106,888	102,300	'
Greater than 800	49,208	43,148	'
No FICO available	6,537	8,632	'
FICO not required	4,855	5,403	'
Government insured/guaranteed loans	40,633	42,165	'
Loans, excluding Purchased Credit Impaired Loans	415,423	411,385	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Real estate 1-4 family first mortgage [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Less than 600	14,914	17,662	'
600-639	9,397	10,208	'
640-679	15,407	15,764	'
680-719	24,809	24,725	'
720-759	33,414	31,502	'
760-799	70,177	63,946	'
Greater than 800	29,576	26,044	'
No FICO available	2,944	3,491	'
FICO not required	0	0	'
Government insured/guaranteed loans	29,556	29,719	'
Loans, excluding Purchased Credit Impaired Loans	230,194	223,061	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Less than 600	5,270	6,122	'
600-639	3,366	3,660	'
640-679	6,141	6,574	'
680-719	10,413	11,361	'
720-759	14,160	15,992	'
760-799	19,740	21,874	'
Greater than 800	7,461	8,526	'
No FICO available	997	1,204	'
FICO not required	0	0	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	67,548	75,313	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Credit Card [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Less than 600	2,295	2,314	'
600-639	2,072	1,961	'
640-679	3,996	3,772	'
680-719	5,192	4,990	'
720-759	5,289	5,114	'
760-799	4,244	4,109	'
Greater than 800	2,114	2,223	'
No FICO available	246	157	'
FICO not required	0	0	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	25,448	24,640	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Automobile [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Less than 600	8,013	7,928	'
600-639	5,945	5,451	'
640-679	8,880	8,142	'
680-719	8,850	7,949	'
720-759	6,400	5,787	'
760-799	6,076	5,400	'
Greater than 800	5,100	4,443	'
No FICO available	429	898	'
FICO not required	0	0	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	49,693	45,998	'
Loans Excluding Purchased Credit-Impaired Loans [Member] | Other revolving credit and installment [Member]	'	'	'
Loans by FICO, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Less than 600	921	1,163	'
600-639	997	952	'
640-679	2,111	2,011	'
680-719	3,873	3,691	'
720-759	5,177	4,942	'
760-799	6,651	6,971	'
Greater than 800	4,957	1,912	'
No FICO available	1,921	2,882	'
FICO not required	4,855	5,403	'
Government insured/guaranteed loans	11,077	12,446	'
Loans, excluding Purchased Credit Impaired Loans	$42,540	$42,373	'

Recovered_Sheet5

Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Loans	812,325	799,574	'
Residential Mortgage [Member]	'	'	'
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Loans	322,599	325,365	'
Residential Mortgage [Member] | Loans Excluding Purchased Credit-Impaired Loans [Member]	'	'	'
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
0-60%	83,639	68,417	'
60.01-80%	90,177	84,927	'
80.01-100%	49,792	52,868	'
100.01-120%	23,611	30,580	'
Greater than 120%	17,790	28,139	'
No LTV/CLTV Available	3,177	3,724	'
Government insured/guaranteed loans	29,556	29,719	'
Loans, excluding Purchased Credit Impaired Loans	297,742	298,374	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Loans	254,924	249,900	'
Real estate 1-4 family first mortgage [Member] | Loans Excluding Purchased Credit-Impaired Loans [Member]	'	'	'
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
0-60%	70,848	56,247	'
60.01-80%	74,080	69,759	'
80.01-100%	33,386	34,830	'
100.01-120%	12,551	17,004	'
Greater than 120%	8,066	13,529	'
No LTV/CLTV Available	1,707	1,973	'
Government insured/guaranteed loans	29,556	29,719	'
Loans, excluding Purchased Credit Impaired Loans	230,194	223,061	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Loans	67,675	75,465	'
Real estate 1-4 family junior lien mortgage [Member] | Loans Excluding Purchased Credit-Impaired Loans [Member]	'	'	'
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]	'	'	'
0-60%	12,791	12,170	'
60.01-80%	16,097	15,168	'
80.01-100%	16,406	18,038	'
100.01-120%	11,060	13,576	'
Greater than 120%	9,724	14,610	'
No LTV/CLTV Available	1,470	1,751	'
Government insured/guaranteed loans	0	0	'
Loans, excluding Purchased Credit Impaired Loans	$67,548	$75,313	'

Recovered_Sheet6

Loans and Allowance for Credit Losses, Nonaccrual (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	$16,893	$20,486
Total Commercial [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	3,886	5,824
Commercial and Industrial Loans [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	809	1,422
Commercial Real Estate Mortgage [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	2,496	3,322
Commercial Real Estate Construction [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	517	1,003
Lease Financing [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	17	27
Foreign Loans [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	47	50
Total Consumer [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	13,007	14,662
Real estate 1-4 family first mortgage [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	10,450	11,455
Real estate 1-4 family junior lien mortgage [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	2,333	2,922
Automobile [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	188	245
Other revolving credit and installment [Member]	'	'
Nonaccrual Loans [Abstract]	'	'
Nonaccrual loans	$36	$40

Recovered_Sheet7

Loans and Allowance for Credit Losses, 90 Days or More Past Due and Still Accruing (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	$22,181	$23,245
FHA Insured/VA Guaranteed [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	20,214	20,745
Student Loans under FFELP [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	917	1,065
Total Consumer [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	883	1,100
Total, not government insured/guaranteed [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	1,050	1,435
Total, not government insured/guaranteed [Member] | Total Commercial [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	167	303
Total, not government insured/guaranteed [Member] | Commercial and Industrial Loans [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	125	47
Total, not government insured/guaranteed [Member] | Commercial Real Estate Mortgage [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	40	228
Total, not government insured/guaranteed [Member] | Commercial Real Estate Construction [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	1	27
Total, not government insured/guaranteed [Member] | Foreign Loans [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	1	1
Total, not government insured/guaranteed [Member] | Total Consumer [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	883	1,132
Total, not government insured/guaranteed [Member] | Real estate 1-4 family first mortgage [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	383	564
Total, not government insured/guaranteed [Member] | Real estate 1-4 family junior lien mortgage [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	89	133
Total, not government insured/guaranteed [Member] | Credit Card [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	285	310
Total, not government insured/guaranteed [Member] | Automobile [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	48	40
Total, not government insured/guaranteed [Member] | Other revolving credit and installment [Member]	'	'
90 days or More Past Due and Still Accruing Loans [Abstract]	'	'
90 days or more past due and still accruing	$78	$85

Recovered_Sheet8

Loans and Allowance for Credit Losses, Impaired Loans (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Impaired Loans [Abstract]	'	'
Unpaid principal balance	$34,860	$36,255
Impaired loans, Recorded Investment	28,847	30,012
Impaired Financing Receivable, with Related Allowance, Recorded Investment	22,407	26,215
Related allowance for credit losses	5,586	5,884
Total Commercial [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	8,420	11,235
Impaired loans, Recorded Investment	6,018	8,186
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,584	8,050
Related allowance for credit losses	1,340	1,674
Commercial and Industrial Loans [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	2,343	3,331
Impaired loans, Recorded Investment	1,418	2,086
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,154	2,086
Related allowance for credit losses	234	353
Commercial Real Estate Mortgage [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	4,788	5,766
Impaired loans, Recorded Investment	3,765	4,673
Impaired Financing Receivable, with Related Allowance, Recorded Investment	3,624	4,537
Related allowance for credit losses	955	1,025
Commercial Real Estate Construction [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	1,125	1,975
Impaired loans, Recorded Investment	789	1,345
Impaired Financing Receivable, with Related Allowance, Recorded Investment	760	1,345
Related allowance for credit losses	137	276
Lease Financing [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	58	54
Impaired loans, Recorded Investment	24	39
Impaired Financing Receivable, with Related Allowance, Recorded Investment	24	39
Related allowance for credit losses	8	11
Foreign Loans [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	106	109
Impaired loans, Recorded Investment	22	43
Impaired Financing Receivable, with Related Allowance, Recorded Investment	22	43
Related allowance for credit losses	6	9
Total Consumer [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	26,440	25,020
Impaired loans, Recorded Investment	22,829	21,826
Impaired Financing Receivable, with Related Allowance, Recorded Investment	16,823	18,165
Related allowance for credit losses	4,246	4,210
Real estate 1-4 family first mortgage [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	22,625	21,293
Impaired loans, Recorded Investment	19,614	18,472
Impaired Financing Receivable, with Related Allowance, Recorded Investment	14,194	15,224
Related allowance for credit losses	3,353	3,074
Real estate 1-4 family junior lien mortgage [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	3,053	2,855
Impaired loans, Recorded Investment	2,516	2,483
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,038	2,070
Related allowance for credit losses	729	859
Credit Card [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	455	531
Impaired loans, Recorded Investment	455	531
Impaired Financing Receivable, with Related Allowance, Recorded Investment	455	531
Related allowance for credit losses	149	244
Automobile [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	265	314
Impaired loans, Recorded Investment	212	314
Impaired Financing Receivable, with Related Allowance, Recorded Investment	111	314
Related allowance for credit losses	13	27
Other revolving credit and installment [Member]	'	'
Impaired Loans [Abstract]	'	'
Unpaid principal balance	42	27
Impaired loans, Recorded Investment	32	26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	25	26
Related allowance for credit losses	$2	$6

Recovered_Sheet9

Loans and Allowance for Credit Losses, Impaired Loans, Average Recorded Investment and Interest Income (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	$28,979	$27,342	$29,442	$26,916
Recognized interest income	401	301	1,175	930
Interest Income On Impaired Loans [Abstract]	'	'	'	'
Interest income, cash basis of accounting	129	72	371	198
Interest income, other	272	229	804	732
Total Commercial [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	6,160	9,590	6,809	9,312
Recognized interest income	73	73	212	222
Commercial and Industrial Loans [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	1,362	2,488	1,580	2,493
Recognized interest income	28	19	76	91
Commercial Real Estate Mortgage [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	3,868	5,147	4,093	4,826
Recognized interest income	38	37	106	87
Commercial Real Estate Construction [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	878	1,831	1,070	1,897
Recognized interest income	6	15	29	42
Lease Financing [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	25	61	30	62
Recognized interest income	1	1	1	1
Foreign Loans [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	27	63	36	34
Recognized interest income	0	1	0	1
Total Consumer [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	22,819	17,752	22,633	17,604
Recognized interest income	328	228	963	708
Real estate 1-4 family first mortgage [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	19,593	14,768	19,359	14,631
Recognized interest income	270	183	785	562
Real estate 1-4 family junior lien mortgage [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	2,499	2,102	2,492	2,078
Recognized interest income	36	20	109	64
Credit Card [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	467	566	491	580
Recognized interest income	14	17	43	48
Automobile [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	228	290	263	290
Recognized interest income	7	7	24	33
Other revolving credit and installment [Member]	'	'	'	'
Impaired Loans, Average Recorded Investment [Abstract]	'	'	'	'
Average recorded investment	32	26	28	25
Recognized interest income	$1	$1	$2	$1

Recovered_Sheet10

Loans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Primary Modification Type [Abstract]	'	'	'	'
Principal	$298	$411	$1,021	$1,124
Interest rate reduction	492	566	1,705	1,522
Other concessions, primary modification type	1,689	5,400	5,680	8,543
Total	2,479	6,377	8,406	11,189
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	73	678	261	883
Weighted average interest rate reduction	3.30%	3.56%	3.22%	3.63%
Recorded investment related to interest rate reduction	741	881	2,431	2,407
Total Commercial [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	2	14	45	36
Interest rate reduction	142	46	398	195
Other concessions, primary modification type	715	895	2,243	2,868
Total	859	955	2,686	3,099
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	7	5	18	41
Weighted average interest rate reduction	2.60%	1.47%	2.99%	1.52%
Recorded investment related to interest rate reduction	142	49	398	200
Commercial and Industrial Loans [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	2	0	2	11
Interest rate reduction	73	5	156	27
Other concessions, primary modification type	316	364	877	1,113
Total	391	369	1,035	1,151
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	6	2	7	22
Weighted average interest rate reduction	3.58%	1.15%	5.09%	1.53%
Recorded investment related to interest rate reduction	73	5	156	28
Commercial Real Estate Mortgage [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	2	28	13
Interest rate reduction	62	40	232	160
Other concessions, primary modification type	345	405	1,113	1,341
Total	407	447	1,373	1,514
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	1	2	7	9
Weighted average interest rate reduction	1.65%	1.48%	1.67%	1.47%
Recorded investment related to interest rate reduction	62	42	232	164
Commercial Real Estate Construction [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	12	0	12
Interest rate reduction	6	1	9	8
Other concessions, primary modification type	54	111	253	395
Total	60	124	262	415
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	0	1	4	10
Weighted average interest rate reduction	1.08%	2.26%	1.02%	2.49%
Recorded investment related to interest rate reduction	6	2	9	8
Lease Financing [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	0	0	0
Interest rate reduction	0	0	0	0
Other concessions, primary modification type	0	1	0	3
Total	0	1	0	3
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	0	0	0	0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Recorded investment related to interest rate reduction	0	0	0	0
Foreign Loans [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	0	15	0
Interest rate reduction	1	0	1	0
Other concessions, primary modification type	0	14	0	16
Total	1	14	16	16
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	0	0	0	0
Weighted average interest rate reduction	0.26%	0.00%	0.00%	0.00%
Recorded investment related to interest rate reduction	1	0	1	0
Total Consumer [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	296	397	976	1,088
Interest rate reduction	350	520	1,307	1,327
Other concessions, primary modification type	974	4,505	3,437	5,675
Total	1,620	5,422	5,720	8,090
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	66	673	243	842
Weighted average interest rate reduction	3.46%	3.68%	3.27%	3.82%
Recorded investment related to interest rate reduction	599	832	2,033	2,207
Real estate 1-4 family first mortgage [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	271	379	897	1,033
Interest rate reduction	259	390	1,016	894
Other concessions, primary modification type	832	3,822	2,928	4,194
Total	1,362	4,591	4,841	6,121
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	49	221	194	354
Weighted average interest rate reduction	2.80%	3.04%	2.63%	2.96%
Recorded investment related to interest rate reduction	485	686	1,671	1,728
Real estate 1-4 family junior lien mortgage [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	24	17	76	50
Interest rate reduction	41	57	135	194
Other concessions, primary modification type	77	489	335	558
Total	142	563	546	802
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	8	445	24	461
Weighted average interest rate reduction	3.43%	3.66%	3.30%	3.79%
Recorded investment related to interest rate reduction	64	73	206	238
Credit Card [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	0	0	0
Interest rate reduction	46	58	138	191
Other concessions, primary modification type	0	0	0	0
Total	46	58	138	191
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	0	0	0	0
Weighted average interest rate reduction	10.15%	10.85%	10.47%	10.83%
Recorded investment related to interest rate reduction	46	58	138	191
Automobile [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	1	1	3	5
Interest rate reduction	2	14	10	46
Other concessions, primary modification type	26	170	74	227
Total	29	185	87	278
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	9	7	25	26
Weighted average interest rate reduction	8.98%	5.47%	7.39%	6.94%
Recorded investment related to interest rate reduction	2	14	10	48
Other revolving credit and installment [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	0	0	0
Interest rate reduction	2	1	8	2
Other concessions, primary modification type	2	17	9	18
Total	4	18	17	20
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	0	0	0	1
Weighted average interest rate reduction	5.40%	5.43%	4.95%	4.57%
Recorded investment related to interest rate reduction	2	1	8	2
Trial modifications [Member]	'	'	'	'
Primary Modification Type [Abstract]	'	'	'	'
Principal	0	0	0	0
Interest rate reduction	0	0	0	0
Other concessions, primary modification type	37	7	91	678
Total	37	7	91	678
Financial effects of modifications [Abstract]	'	'	'	'
Charge-offs, financial effects of modifications	0	0	0	0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Recorded investment related to interest rate reduction	$0	$0	$0	$0

Recovered_Sheet11

Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	$216	$468	$862	$1,608
Total Commercial [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	81	266	505	994
Commercial and Industrial Loans [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	19	119	214	269
Commercial Real Estate Mortgage [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	51	124	228	473
Commercial Real Estate Construction [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	10	23	62	252
Lease Financing [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	0	0	0	0
Foreign Loans [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	1	0	1	0
Total Consumer [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	135	202	357	614
Real estate 1-4 family first mortgage [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	107	150	271	447
Real estate 1-4 family junior lien mortgage [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	9	12	26	48
Credit Card [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	13	22	45	73
Automobile [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	5	18	14	45
Other revolving credit and installment [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Recorded investment of defaults	$1	$0	$1	$1

Recovered_Sheet12

Loans and Allowance for Credit Losses, PCI Loans Outstanding (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Total PCI loans (unpaid principal balance)	39,870	45,174	98,182
Total Commercial [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	2,977	3,977	18,704
Commercial and Industrial Loans [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	210	259	4,580
Commercial Real Estate Mortgage [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	1,419	1,970	5,803
Commercial Real Estate Construction [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	605	877	6,462
Foreign Loans [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	743	871	1,859
Total Consumer [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	40,093
Real estate 1-4 family first mortgage [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Automobile [Member]	'	'	'
PCI loans [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$0	$0	$151

Recovered_Sheet13

Loans and Allowance for Credit Losses, PCI, Accretable Yield (Details) (USD $)	3 Months Ended	9 Months Ended	48 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012
Change in accretable yield related to PCI loans [Abstract]	'	'	'
Total, beginning of period	$20,021	$18,548	$10,447
Addition of accretable yield due to acquisitions	1	1	131
Accretion into interest income	-481	-1,386	-9,351
Accretion into noninterest income due to sales	0	-151	-242
Reclassification from nonaccretable difference for loans with improving credit-related cash flows	9	916	5,354
Changes in expected cash flows that do not affect nonaccretable difference	-34	1,588	12,209
Total, end of period	$19,516	$19,516	$18,548

Recovered_Sheet14

Loans and Allowance for Credit Losses, PCI, Allowance for Credit Losses (Details) (USD $)	3 Months Ended	9 Months Ended	48 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012
Changes in allowance for PCI loan losses [Abstract]	'	'	'
Balance, beginning of period	$71	$117	$0
Provision (reversal of provision) for losses due to credit deterioration	-47	-80	1,816
Charge-offs	-2	-15	-1,699
Balance, end of period	22	22	117
Commercial Portfolio Segment [Member]	'	'	'
Changes in allowance for PCI loan losses [Abstract]	'	'	'
Balance, beginning of period	49	88	0
Provision (reversal of provision) for losses due to credit deterioration	-31	-65	1,693
Charge-offs	-1	-6	-1,605
Balance, end of period	17	17	88
Pick-a-pay [Member]	'	'	'
Changes in allowance for PCI loan losses [Abstract]	'	'	'
Balance, beginning of period	0	0	0
Provision (reversal of provision) for losses due to credit deterioration	0	0	0
Charge-offs	0	0	0
Balance, end of period	0	0	0
Other Consumer [Member]	'	'	'
Changes in allowance for PCI loan losses [Abstract]	'	'	'
Balance, beginning of period	22	29	0
Provision (reversal of provision) for losses due to credit deterioration	-16	-15	123
Charge-offs	-1	-9	-94
Balance, end of period	$5	$5	$29

Recovered_Sheet15

Loans and Allowance for Credit Losses, PCI, by Credit Quality Indicator (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	$27,834	$30,968	$58,797
Total Commercial [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	2,977	3,977	18,704
Commercial and Industrial Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	210	259	4,580
Commercial Real Estate Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	1,419	1,970	5,803
Commercial Real Estate Construction [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	605	877	6,462
Foreign Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	743	871	1,859
Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	2,977	3,977	'
Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	210	259	'
Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	1,419	1,970	'
Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	605	877	'
Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	743	871	'
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	687	898	'
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	108	95	'
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	357	341	'
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	215	207	'
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	7	255	'
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	2,290	3,079	'
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	102	164	'
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	1,062	1,629	'
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	390	670	'
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract]	'	'	'
Purchased Credit Impaired Loans	$736	$616	'

Recovered_Sheet16

Loans and Allowance for Credit Losses, PCI, by Delinquency Status, Commercial (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
90+ DPD and still accruing	$22,181	$23,245	'
Purchased Credit Impaired Loans	27,834	30,968	58,797
Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
90+ DPD and still accruing	4,900	6,000	'
Total Commercial [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans	2,977	3,977	18,704
Total Commercial [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	2,642	3,442	'
30-89 DPD and still accruing	96	78	'
90+ DPD and still accruing	239	457	'
Purchased Credit Impaired Loans	2,977	3,977	'
Commercial and Industrial Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans	210	259	4,580
Commercial and Industrial Loans [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	202	235	'
30-89 DPD and still accruing	3	1	'
90+ DPD and still accruing	5	23	'
Purchased Credit Impaired Loans	210	259	'
Commercial Real Estate Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans	1,419	1,970	5,803
Commercial Real Estate Mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	1,315	1,804	'
30-89 DPD and still accruing	51	26	'
90+ DPD and still accruing	53	140	'
Purchased Credit Impaired Loans	1,419	1,970	'
Commercial Real Estate Construction [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans	605	877	6,462
Commercial Real Estate Construction [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	491	699	'
30-89 DPD and still accruing	32	51	'
90+ DPD and still accruing	82	127	'
Purchased Credit Impaired Loans	605	877	'
Foreign Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans	743	871	1,859
Foreign Loans [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans Commercial Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	634	704	'
30-89 DPD and still accruing	10	0	'
90+ DPD and still accruing	99	167	'
Purchased Credit Impaired Loans	$743	$871	'

Recovered_Sheet17

Loans and Allowance for Credit Losses, PCI, by Delinquency Status, Consumer (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Residential Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Residential Mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	21,115	22,502	'
30-59 DPD and still accruing	2,256	2,598	'
60-89 DPD and still accruing	1,183	1,368	'
90-119 DPD and still accruing	497	656	'
120-179 DPD and still accruing	570	811	'
180+ DPD and still accruing	4,677	5,472	'
Total consumer PCI loans (adjusted unpaid principal balance)	30,298	33,407	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Real estate 1-4 family first mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	20,942	22,304	'
30-59 DPD and still accruing	2,247	2,587	'
60-89 DPD and still accruing	1,178	1,361	'
90-119 DPD and still accruing	494	650	'
120-179 DPD and still accruing	566	804	'
180+ DPD and still accruing	4,576	5,356	'
Total consumer PCI loans (adjusted unpaid principal balance)	30,003	33,062	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Real estate 1-4 family junior lien mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans by Consumer Days Past Due [Abstract]	'	'	'
Current-29 DPD and still accruing	173	198	'
30-59 DPD and still accruing	9	11	'
60-89 DPD and still accruing	5	7	'
90-119 DPD and still accruing	3	6	'
120-179 DPD and still accruing	4	7	'
180+ DPD and still accruing	101	116	'
Total consumer PCI loans (adjusted unpaid principal balance)	295	345	'
Purchased Credit Impaired Loans (carrying value)	$127	$152	'

Recovered_Sheet18

Loans and Allowance for Credit Losses, PCI, by FICO Score, Consumer (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Residential Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Residential Mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Less than 600	10,698	13,307	'
600-639	6,262	6,741	'
640-679	6,807	6,675	'
680-719	3,695	3,674	'
720-759	1,667	1,768	'
760-799	834	880	'
Greater than 800	208	203	'
No FICO available	127	159	'
Total consumer PCI loans (adjusted unpaid principal balance)	30,298	33,407	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Real estate 1-4 family first mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Less than 600	10,590	13,163	'
600-639	6,200	6,673	'
640-679	6,736	6,602	'
680-719	3,659	3,635	'
720-759	1,657	1,757	'
760-799	829	874	'
Greater than 800	207	202	'
No FICO available	125	156	'
Total consumer PCI loans (adjusted unpaid principal balance)	30,003	33,062	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Real estate 1-4 family junior lien mortgage [Member] | Purchased Credit-Impaired Loans [Member]	'	'	'
Purchased Credit Impaired Loans by FICO [Abstract]	'	'	'
Less than 600	108	144	'
600-639	62	68	'
640-679	71	73	'
680-719	36	39	'
720-759	10	11	'
760-799	5	6	'
Greater than 800	1	1	'
No FICO available	2	3	'
Total consumer PCI loans (adjusted unpaid principal balance)	295	345	'
Purchased Credit Impaired Loans (carrying value)	$127	$152	'

Recovered_Sheet19

Loans and Allowance for Credit Losses, PCI, by Loan to Value Ratio, Consumer (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2008
In Millions, unless otherwise specified
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	$27,834	$30,968	$58,797
Residential Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	39,214
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
Purchased Credit Impaired Loans (carrying value)	127	152	728
Purchased Credit-Impaired Loans [Member] | Residential Mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
0-60%	1,966	1,395	'
60.01-80%	6,156	4,149	'
80.01-100%	10,478	9,637	'
100.01-120%	6,417	8,177	'
Greater than 120%	5,271	10,027	'
No LTV/CLTV Available	10	22	'
Total consumer PCI loans (adjusted unpaid principal balance)	30,298	33,407	'
Purchased Credit Impaired Loans (carrying value)	24,857	26,991	'
Purchased Credit-Impaired Loans [Member] | Real estate 1-4 family first mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
0-60%	1,938	1,374	'
60.01-80%	6,122	4,119	'
80.01-100%	10,403	9,576	'
100.01-120%	6,339	8,084	'
Greater than 120%	5,192	9,889	'
No LTV/CLTV Available	9	20	'
Total consumer PCI loans (adjusted unpaid principal balance)	30,003	33,062	'
Purchased Credit Impaired Loans (carrying value)	24,730	26,839	'
Purchased Credit-Impaired Loans [Member] | Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Purchased Credit Impaired Loans by Loan to Value [Abstract]	'	'	'
0-60%	28	21	'
60.01-80%	34	30	'
80.01-100%	75	61	'
100.01-120%	78	93	'
Greater than 120%	79	138	'
No LTV/CLTV Available	1	2	'
Total consumer PCI loans (adjusted unpaid principal balance)	295	345	'
Purchased Credit Impaired Loans (carrying value)	$127	$152	'

Other_Assets_Details

Other Assets (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Components of other assets [Line Items]	'	'	'	'	'
Cost method investments	$7,201	'	$7,201	'	$6,799
Equity method investments	11,628	'	11,628	'	10,923
Fair value investments	911	'	911	'	0
Total nonmarketable equity investments	19,740	'	19,740	'	17,722
Corporate/bank-owned life insurance	18,694	'	18,694	'	18,649
Accounts receivable	27,715	'	27,715	'	25,828
Interest receivable	5,221	'	5,221	'	5,006
Customer relationship and other amortized intangibles	7,339	'	7,339	'	8,427
Operating lease assets	1,983	'	1,983	'	2,001
Due from customers on acceptances	352	'	352	'	282
Other	10,620	'	10,620	'	12,800
Other assets	94,262	'	94,262	'	93,578
Income Related to Nonmarketable Equity Investments [Abstract]	'	'	'	'	'
Net realized gains (losses) from nonmarketable equity investments	382	125	606	415	'
All other	-56	-27	-147	-51	'
Total	326	98	459	364	'
Government Insured Or Guaranteed [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Foreclosed assets	1,781	'	1,781	'	1,509
Non Government Insured Or Guaranteed [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Foreclosed assets	2,021	'	2,021	'	2,514
Core deposit intangibles [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Customer relationship and other amortized intangibles	4,984	'	4,984	'	5,915
Customer Relationships And Other [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Customer relationship and other amortized intangibles	1,151	'	1,151	'	1,352
Federal Bank Stock [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Cost method investments	4,788	'	4,788	'	4,227
Private Equity Investments Cost Method [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Cost method investments	2,413	'	2,413	'	2,572
Low Income Housing Tax Credit Equity Method Investments [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Equity method investments	5,914	'	5,914	'	4,767
Private Equity and Other Investments [Member]	'	'	'	'	'
Components of other assets [Line Items]	'	'	'	'	'
Equity method investments	$5,714	'	$5,714	'	$6,156

Securitizations_and_Variable_I2

Securitizations and Variable Interest Entities Textual (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Short-term Borrowings, Amount	$53,851,000,000	'	$53,851,000,000	'	$57,175,000,000
Accrued expenses and other liabilities	72,308,000,000	'	72,308,000,000	'	76,668,000,000
Long-term Debt	151,212,000,000	'	151,212,000,000	'	127,379,000,000
% of underlying collateral rated as investment grade	72.00%	'	72.00%	'	83.00%
Net Gains from Sale of Assets Securitizations	28,000,000	97,000,000	138,000,000	161,000,000	'
Amount of servicing asset at fair value	14,501,000,000	'	14,501,000,000	'	11,538,000,000
Amount of servicing asset at amortized cost	1,204,000,000	1,144,000,000	1,204,000,000	1,144,000,000	1,160,000,000
Total Loans	1,437,460,000,000	'	1,437,460,000,000	'	1,414,103,000,000
Delinquent loans	27,367,000,000	'	27,367,000,000	'	33,900,000,000
VIEs that we consolidate, recourse [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Short-term Borrowings, Amount	0	'	0	'	2,100,000,000
Accrued expenses and other liabilities	704,000,000	'	704,000,000	'	767,000,000
Long-term Debt	29,000,000	'	29,000,000	'	29,000,000
FNMA, FHLMC and GNMA [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Total Loans	1,300,000,000,000	'	1,300,000,000,000	'	1,300,000,000,000
Delinquent loans	15,200,000,000	'	15,200,000,000	'	17,400,000,000
Residential Mortgage [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Amount transferred related to mortgages to unconsolidated VIE	84,400,000,000	129,300,000,000	296,300,000,000	398,400,000,000	'
Gain Loss on Transfer of Unconsolidated VIE Debt Investments	'	'	0	0	'
Commercial Mortgage [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Amount transferred related to mortgages to unconsolidated VIE	1,100,000,000	1,200,000,000	4,300,000,000	2,200,000,000	'
Gain Loss on Transfer of Unconsolidated VIE Debt Investments	29,000,000	74,000,000	129,000,000	113,000,000	'
Loans [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Assets pledged to collateralize the borrowings of variable interest entity	6,700,000,000	'	6,700,000,000	'	6,400,000,000
Available for sale Securities [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Assets pledged to collateralize the borrowings of variable interest entity	169,000,000	'	169,000,000	'	179,000,000
Cash and cash equivalents [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Assets pledged to collateralize the borrowings of variable interest entity	180,000,000	'	180,000,000	'	138,000,000
Level 2 [Member] | Commercial Mortgage [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Securities available for sale	54,000,000	41,000,000	54,000,000	41,000,000	'
Level 3 [Member] | Residential Mortgage [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Amount of servicing asset at fair value	2,900,000,000	3,800,000,000	2,900,000,000	3,800,000,000	'
Amount of liability for repurchase reserves at fair value	'	'	127,000,000	209,000,000	'
Level 3 [Member] | Commercial Mortgage [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Amount of servicing asset at fair value	14,000,000	9,000,000	14,000,000	9,000,000	'
Equity Interests [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Total equity interest	6,600,000,000	'	6,600,000,000	'	5,800,000,000
Long-term debt [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Private placement debt financing	6,000,000,000	'	6,000,000,000	'	6,000,000,000
Commercial Mortgage Servicing [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Fair value of interests held	1,500,000,000	'	1,500,000,000	'	1,400,000,000
Decrease in fair value from 25% adverse change	179,000,000	'	179,000,000	'	139,000,000
Trust Preferred Securities [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Carrying value - asset (liability)	-1,900,000,000	'	-1,900,000,000	'	-4,900,000,000
Trust Preferred Securities Notice Redeemed During Period, Value	'	'	2,800,000,000	'	'
Trust Preferred Securities [Member] | Preferred stock [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Carrying value - equity	2,500,000,000	'	2,500,000,000	'	2,500,000,000
Other Investments [Member]	'	'	'	'	'
Securitizations and Variable Interest Entities (Textual) [Abstract]	'	'	'	'	'
Securities Available for sale Portfolio of ARS issued by VIEs	$661,000,000	'	$661,000,000	'	$686,000,000

Securitizations_and_Variable_I3

Securitizations and Variable Interest Entities (Details) (USD $)	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012	Dec. 31, 2011
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities	'		'		'	'
Cash and due from banks	$18,928,000,000		$21,860,000,000		$16,986,000,000	$19,440,000,000
Trading assets	60,203,000,000		57,482,000,000		'	'
Securities available for sale	259,399,000,000		235,199,000,000		'	'
Mortgages held for sale	25,395,000,000		47,149,000,000		'	'
Loans	812,325,000,000		799,574,000,000		'	'
MSRs (carried at fair value)	14,501,000,000		11,538,000,000		'	'
Other assets	94,262,000,000		93,578,000,000		'	'
Total assets	1,488,055,000,000	[1]	1,422,968,000,000	[1]	'	'
Short-term Borrowings, Amount	53,851,000,000		57,175,000,000		'	'
Accrued expenses and other liabilities	72,308,000,000		76,668,000,000		'	'
Long-term debt	151,212,000,000		127,379,000,000		'	'
Total liabilities	1,319,242,000,000	[2]	1,264,057,000,000	[2]	'	'
Noncontrolling interests	1,648,000,000		1,357,000,000		'	'
VIEs that we do not consolidate [Member]	'		'		'	'
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities	'		'		'	'
Cash and due from banks	0		0		'	'
Trading assets	1,751,000,000		1,902,000,000		'	'
Securities available for sale	19,034,000,000		19,900,000,000		'	'
Mortgages held for sale	0		0		'	'
Loans	7,490,000,000		9,841,000,000		'	'
MSRs (carried at fair value)	13,975,000,000		11,114,000,000		'	'
Other assets	5,868,000,000		4,993,000,000		'	'
Total assets	48,118,000,000		47,750,000,000		'	'
Short-term Borrowings, Amount	0		0		'	'
Accrued expenses and other liabilities	3,842,000,000		3,441,000,000		'	'
Long-term debt	0		0		'	'
Total liabilities	3,842,000,000		3,441,000,000		'	'
Noncontrolling interests	0		0		'	'
Net assets	44,276,000,000		44,309,000,000		'	'
VIEs that we consolidate [Member]	'		'		'	'
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities	'		'		'	'
Cash and due from banks	171,000,000		260,000,000		'	'
Trading assets	186,000,000		114,000,000		'	'
Securities available for sale	1,377,000,000		2,772,000,000		'	'
Mortgages held for sale	66,000,000		469,000,000		'	'
Loans	8,007,000,000		10,553,000,000		'	'
MSRs (carried at fair value)	0		0		'	'
Other assets	348,000,000		457,000,000		'	'
Total assets	10,155,000,000		14,625,000,000		'	'
Short-term Borrowings, Amount	23,000,000		2,059,000,000		'	'
Accrued expenses and other liabilities	807,000,000		901,000,000		'	'
Long-term debt	2,571,000,000		3,483,000,000		'	'
Total liabilities	3,401,000,000		6,443,000,000		'	'
Noncontrolling interests	7,000,000		48,000,000		'	'
Net assets	6,747,000,000		8,134,000,000		'	'
Transfers Accounted For As Secured Borrowings [Member]	'		'		'	'
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities	'		'		'	'
Cash and due from banks	27,000,000		30,000,000		'	'
Trading assets	195,000,000		218,000,000		'	'
Securities available for sale	10,647,000,000		14,848,000,000		'	'
Mortgages held for sale	0		0		'	'
Loans	6,257,000,000		7,088,000,000		'	'
MSRs (carried at fair value)	0		0		'	'
Other assets	138,000,000		161,000,000		'	'
Total assets	17,264,000,000		22,345,000,000		'	'
Short-term Borrowings, Amount	8,184,000,000		13,228,000,000		'	'
Accrued expenses and other liabilities	5,000,000		20,000,000		'	'
Long-term debt	5,889,000,000		6,520,000,000		'	'
Total liabilities	14,078,000,000		19,768,000,000		'	'
Noncontrolling interests	0		0		'	'
Net assets	3,186,000,000		2,577,000,000		'	'
Total VIE [Member]	'		'		'	'
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities	'		'		'	'
Cash and due from banks	198,000,000		290,000,000		'	'
Trading assets	2,132,000,000		2,234,000,000		'	'
Securities available for sale	31,058,000,000		37,520,000,000		'	'
Mortgages held for sale	66,000,000		469,000,000		'	'
Loans	21,754,000,000		27,482,000,000		'	'
MSRs (carried at fair value)	13,975,000,000		11,114,000,000		'	'
Other assets	6,354,000,000		5,611,000,000		'	'
Total assets	75,537,000,000		84,720,000,000		'	'
Short-term Borrowings, Amount	8,207,000,000		15,287,000,000		'	'
Accrued expenses and other liabilities	4,654,000,000		4,362,000,000		'	'
Long-term debt	8,460,000,000		10,003,000,000		'	'
Total liabilities	21,321,000,000		29,652,000,000		'	'
Noncontrolling interests	7,000,000		48,000,000		'	'
Net assets	$54,209,000,000		$55,020,000,000		'	'
[1]	Our consolidated assets at September 30, 2013 and December 31, 2012, include the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Cash and due from banks, $171 million and $260 million; Trading assets, $186 million and $114 million; Securities available for sale, $1.4 billion and $2.8 billion; Mortgages held for sale, $66 million and $469 million; Net loans, $8.0 billion and $10.6 billion; Other assets, $348 million and 457 million, and Total assets, $10.2 billion and $14.6 billion, respectively.
[2]	Our consolidated liabilities at September 30, 2013 and December 31, 2012, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $23 million and $0 million; Accrued expenses and other liabilities, $103 million and $134 million; Long-term debt, $2.5 billion and $3.5 billion; and Total liabilities, $2.6 billion and $3.6 billion, respectively.

Securitizations_and_Variable_I4

Securitizations and Variable Interest Entities, Significant Continuing Involvement - Unconsolidated VIEs (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Variable Interest Entity [Line Items]	'	'
Total VIE assets	$1,584,797	$1,553,824
Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	1,311,328	1,268,494
Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	40,113	49,794
Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	170,356	168,126
Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	6,284	6,940
Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	6,038	8,155
Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	11,030	10,404
Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	21,642	20,098
Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	4,791	6,641
Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	3,700	4,771
Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Total VIE assets	9,515	10,401
Debt and equity interests [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	33,479	35,664
Maximum exposure to loss	33,479	35,664
Debt and equity interests [Member] | Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	3,175	3,620
Maximum exposure to loss	3,175	3,620
Debt and equity interests [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	1,841	2,188
Maximum exposure to loss	1,841	2,188
Debt and equity interests [Member] | Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	7,466	7,081
Maximum exposure to loss	7,466	7,081
Debt and equity interests [Member] | Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	36	13
Maximum exposure to loss	36	13
Debt and equity interests [Member] | Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	5,905	7,962
Maximum exposure to loss	5,905	7,962
Debt and equity interests [Member] | Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	7,015	7,155
Maximum exposure to loss	7,015	7,155
Debt and equity interests [Member] | Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	6,135	5,180
Maximum exposure to loss	6,135	5,180
Debt and equity interests [Member] | Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	984	1,439
Maximum exposure to loss	984	1,439
Debt and equity interests [Member] | Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	51	49
Maximum exposure to loss	51	49
Debt and equity interests [Member] | Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	871	977
Maximum exposure to loss	871	977
Servicing assets [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	13,975	11,114
Maximum exposure to loss	13,975	11,114
Servicing assets [Member] | Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	13,337	10,336
Maximum exposure to loss	13,337	10,336
Servicing assets [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	252	284
Maximum exposure to loss	252	284
Servicing assets [Member] | Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	362	466
Maximum exposure to loss	362	466
Servicing assets [Member] | Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Servicing assets [Member] | Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Servicing assets [Member] | Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Servicing assets [Member] | Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Servicing assets [Member] | Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Servicing assets [Member] | Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Servicing assets [Member] | Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	24	28
Maximum exposure to loss	24	28
Variable Interest Entity Derivatives [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	501	786
Maximum exposure to loss	966	1,340
Variable Interest Entity Derivatives [Member] | Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Variable Interest Entity Derivatives [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Variable Interest Entity Derivatives [Member] | Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	256	404
Maximum exposure to loss	359	446
Variable Interest Entity Derivatives [Member] | Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	339	471
Maximum exposure to loss	339	471
Variable Interest Entity Derivatives [Member] | Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Variable Interest Entity Derivatives [Member] | Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-91	-104
Maximum exposure to loss	91	104
Variable Interest Entity Derivatives [Member] | Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Variable Interest Entity Derivatives [Member] | Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	1
Maximum exposure to loss	0	1
Variable Interest Entity Derivatives [Member] | Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Variable Interest Entity Derivatives [Member] | Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-3	14
Maximum exposure to loss	177	318
Other commitments and guarantees [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-3,679	-3,255
Maximum exposure to loss	6,289	8,179
Other commitments and guarantees [Member] | Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-1,150	-1,690
Maximum exposure to loss	3,225	5,061
Other commitments and guarantees [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-47	-53
Maximum exposure to loss	369	353
Other commitments and guarantees [Member] | Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Other commitments and guarantees [Member] | Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-130	144
Maximum exposure to loss	130	144
Other commitments and guarantees [Member] | Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	0	0
Other commitments and guarantees [Member] | Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	1,687	1,967
Other commitments and guarantees [Member] | Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-2,164	-1,657
Maximum exposure to loss	499	247
Other commitments and guarantees [Member] | Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	158	261
Other commitments and guarantees [Member] | Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	0	0
Maximum exposure to loss	33	27
Other commitments and guarantees [Member] | Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	-188	1
Maximum exposure to loss	188	119
Net assets [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	44,276	44,309
Net assets [Member] | Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	15,362	12,266
Net assets [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	2,046	2,419
Net assets [Member] | Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	8,084	7,951
Net assets [Member] | Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	245	628
Net assets [Member] | Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	5,905	7,962
Net assets [Member] | Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	6,924	7,051
Net assets [Member] | Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	3,971	3,523
Net assets [Member] | Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	984	1,440
Net assets [Member] | Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	51	49
Net assets [Member] | Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Carrying value asset (liability)	704	1,020
Total exposure [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	54,709	56,297
Total exposure [Member] | Conforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	19,737	19,017
Total exposure [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	2,462	2,825
Total exposure [Member] | Commercial mortgage securitizations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	8,187	7,993
Total exposure [Member] | Collateralized Debt Obligations Debt Securities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	505	628
Total exposure [Member] | Collateralized Debt Obligations Loans [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	5,905	7,962
Total exposure [Member] | Asset-based finance structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	8,793	9,226
Total exposure [Member] | Tax Credit Structures [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	6,634	5,427
Total exposure [Member] | Collateralized loan obligations [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	1,142	1,701
Total exposure [Member] | Investment funds [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	84	76
Total exposure [Member] | Other securitizations and transactions [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Maximum exposure to loss	$1,260	$1,442

Securitizations_and_Variable_I5

Securitizations and Variable Interest Entities, Cash Flow Securitizations (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Mortgage loans [Member]	'	'	'	'
Cash Flow Securitizations [Abstract]	'	'	'	'
Sales proceeds from securitizations	$86,423	$135,596	$308,016	$412,465
Fees from servicing rights retained	1,051	1,088	3,178	3,312
Other interests held	1,014	466	1,861	1,333
Purchases of delinquent assets	0	2	16	54
Servicing advances, net of repayments	-181	25	633	151
Other financial assets [Member]	'	'	'	'
Cash Flow Securitizations [Abstract]	'	'	'	'
Sales proceeds from securitizations	0	0	0	0
Fees from servicing rights retained	2	3	7	8
Other interests held	24	20	72	114
Purchases of delinquent assets	0	0	0	0
Servicing advances, net of repayments	$0	$0	$0	$0

Securitizations_and_Variable_I6

Securitizations and Variable Interest Entities, Key Economic Assumptions - Mortgage Servicing Assets (Details) (Residential Mortgage Servicing [Member], USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Residential Mortgage Servicing [Member]	'	'	'	'
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]	'	'	'	'
Prepayment speed (annual CPR)	9.60%	13.90%	11.20%	13.40%
Discount rate	7.50%	7.30%	7.20%	7.30%
Cost to service ($ per loan)	$181	$169	$187	$143

Securitizations_and_Variable_I7

Securitizations and Variable Interest Entities, Key Economic Assumptions - Mortgage Servicing Rights (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Residential Mortgage Servicing [Member]	'	'
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]	'	'
Fair value of interests held	$14,501,000,000	$11,538,000,000
Expected weighted-average life (in years)	'6 years	'4 years 9 months 21 days
Prepayment speed assumption (annual CPR)	11.70%	15.70%
Decrease in fair value from 10% adverse change	888,000,000	869,000,000
Decrease in fair value from 25% adverse change	2,113,000,000	2,038,000,000
Discount rate assumption	7.60%	7.40%
Decrease in fair value from 100 basis point increase	784,000,000	562,000,000
Decrease in fair value from 200 basis point increase	1,499,000,000	1,073,000,000
Cost to service assumption ($ per loan)	198	219
Decrease in fair value from 10% adverse change	606	615
Decrease in fair value from 25% adverse change	1,514	1,537
Interest-Only Strips [Member]	'	'
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]	'	'
Fair value of interests held	147,000,000	187,000,000
Expected weighted-average life (in years)	'3 years 10 months 23 days	'4 years 1 month 8 days
Prepayment speed assumption (annual CPR)	10.60%	10.60%
Decrease in fair value from 10% adverse change	3,000,000	5,000,000
Decrease in fair value from 25% adverse change	7,000,000	12,000,000
Discount rate assumption	18.10%	16.90%
Decrease in fair value from 100 basis point increase	3,000,000	4,000,000
Decrease in fair value from 200 basis point increase	5,000,000	8,000,000
Subordinated bonds [Member] | Commercial Securitizations [Member]	'	'
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]	'	'
Fair value of interests held	256,000,000	249,000,000
Expected weighted-average life (in years)	'4 years 3 months 18 days	'4 years 8 months 15 days
Discount rate assumption	9.50%	3.50%
Decrease in fair value from 100 basis point increase	9,000,000	12,000,000
Decrease in fair value from 200 basis point increase	18,000,000	21,000,000
Credit loss assumption	1.50%	10.00%
Decrease in fair value from 10% higher losses	4,000,000	12,000,000
Decrease in fair value from 25% higher losses	6,000,000	19,000,000
Subordinated bonds [Member] | Consumer Securitizations [Member]	'	'
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]	'	'
Fair value of interests held	40,000,000	40,000,000
Expected weighted-average life (in years)	'5 years 10 months 23 days	'5 years 10 months 28 days
Prepayment speed assumption (annual CPR)	6.70%	6.80%
Decrease in fair value from 10% adverse change	0	0
Decrease in fair value from 25% adverse change	0	0
Discount rate assumption	4.60%	8.90%
Decrease in fair value from 100 basis point increase	2,000,000	2,000,000
Decrease in fair value from 200 basis point increase	4,000,000	4,000,000
Credit loss assumption	0.40%	0.40%
Decrease in fair value from 10% higher losses	0	0
Decrease in fair value from 25% higher losses	0	0
Senior bonds [Member] | Commercial Securitizations [Member]	'	'
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]	'	'
Fair value of interests held	613,000,000	982,000,000
Expected weighted-average life (in years)	'6 years 7 months 6 days	'5 years 3 months 22 days
Discount rate assumption	4.00%	2.20%
Decrease in fair value from 100 basis point increase	33,000,000	43,000,000
Decrease in fair value from 200 basis point increase	63,000,000	84,000,000
Credit loss assumption	0.00%	0.00%
Decrease in fair value from 10% higher losses	0	0
Decrease in fair value from 25% higher losses	0	0
Senior bonds [Member] | Consumer Securitizations [Member]	'	'
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]	'	'
Fair value of interests held	0	0
Expected weighted-average life (in years)	'0 years 0 months 0 days	'0 years 0 months 0 days
Prepayment speed assumption (annual CPR)	0.00%	0.00%
Decrease in fair value from 10% adverse change	0	0
Decrease in fair value from 25% adverse change	0	0
Discount rate assumption	0.00%	0.00%
Decrease in fair value from 100 basis point increase	0	0
Decrease in fair value from 200 basis point increase	0	0
Credit loss assumption	0.00%	0.00%
Decrease in fair value from 10% higher losses	0	0
Decrease in fair value from 25% higher losses	$0	$0

Securitizations_and_Variable_I8

Securitizations and Variable Interest Entities, Principal Balances of Off-Balance Sheet Securitized Loans (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	$1,437,460	'	$1,414,103
Delinquent loans	27,367	'	33,900
Net charge-offs (recoveries)	1,119	1,199	'
Total Commercial [Member]	'	'	'
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	123,093	'	128,564
Delinquent loans	8,846	'	12,216
Net charge-offs (recoveries)	465	323	'
Real estate mortgage [Member]	'	'	'
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	123,093	'	128,564
Delinquent loans	8,846	'	12,216
Net charge-offs (recoveries)	465	323	'
Total Consumer [Member]	'	'	'
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	1,314,367	'	1,285,539
Delinquent loans	18,521	'	21,684
Net charge-offs (recoveries)	654	876	'
Real estate 1-4 family first mortgage [Member]	'	'	'
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	1,312,533	'	1,283,504
Delinquent loans	18,428	'	21,574
Net charge-offs (recoveries)	654	876	'
Real estate 1-4 family junior lien mortgage [Member]	'	'	'
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	1	'	1
Delinquent loans	0	'	0
Net charge-offs (recoveries)	0	0	'
Other revolving credit and installment [Member]	'	'	'
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]	'	'	'
Total Loans	1,833	'	2,034
Delinquent loans	93	'	110
Net charge-offs (recoveries)	$0	$0	'

Securitizations_and_Variable_I9

Securitizations and Variable Interest Entities, Secured Borrowing and Consolidated Variable Interest Entity (Details) (USD $)	Sep. 30, 2013		Dec. 31, 2012
In Millions, unless otherwise specified
Variable Interest Entity [Line Items]	'		'
Consolidated assets	$1,488,055	[1]	$1,422,968	[1]
Third party liabilities	-1,319,242	[2]	-1,264,057	[2]
Noncontrolling interests	-1,648		-1,357
VIEs that we consolidate [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	11,036		16,054
Consolidated assets	10,155		14,625
Third party liabilities	-3,401		-6,443
Noncontrolling interests	-7		-48
Net assets	6,747		8,134
VIEs that we consolidate [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	10,155		14,625
Third party liabilities	-3,401		-6,443
Noncontrolling interests	-7		-48
Net assets	6,747		8,134
VIEs that we consolidate [Member] | Nonconforming Residential Mortgage Backed Securities [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	7,141		8,633
VIEs that we consolidate [Member] | Nonconforming Residential Mortgage Backed Securities [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	6,332		7,707
Third party liabilities	-2,381		-2,933
Noncontrolling interests	0		0
Net assets	3,951		4,774
VIEs that we consolidate [Member] | Multi-seller commercial paper conduit [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	0		2,059
VIEs that we consolidate [Member] | Multi-seller commercial paper conduit [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	0		2,036
Third party liabilities	0		-2,053
Noncontrolling interests	0		0
Net assets	0		-17
VIEs that we consolidate [Member] | Structured Asset Finance [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	60		71
VIEs that we consolidate [Member] | Structured Asset Finance [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	60		71
Third party liabilities	-18		-17
Noncontrolling interests	0		0
Net assets	42		54
VIEs that we consolidate [Member] | Investment funds [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	1,565		1,837
VIEs that we consolidate [Member] | Investment funds [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	1,565		1,837
Third party liabilities	-68		-2
Noncontrolling interests	0		0
Net assets	1,497		1,835
VIEs that we consolidate [Member] | Other securitizations and transactions [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	2,270		3,454
VIEs that we consolidate [Member] | Other securitizations and transactions [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	2,198		2,974
Third party liabilities	-934		-1,438
Noncontrolling interests	-7		-48
Net assets	1,257		1,488
Secured Borrowings [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	19,610		23,514
Secured Borrowings [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	17,264		22,345
Third party liabilities	-14,078		-19,768
Noncontrolling interests	0		0
Net assets	3,186		2,577
Secured Borrowings [Member] | Commercial Real Estate Loans [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	596		975
Secured Borrowings [Member] | Commercial Real Estate Loans [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	596		975
Third party liabilities	-378		-696
Noncontrolling interests	0		0
Net assets	218		279
Secured Borrowings [Member] | Municipal tender option bond securitizations [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	13,567		16,782
Secured Borrowings [Member] | Municipal tender option bond securitizations [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	10,906		15,130
Third party liabilities	-8,189		-13,248
Noncontrolling interests	0		0
Net assets	2,717		1,882
Secured Borrowings [Member] | Residental mortgage securitizations [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	5,447		5,757
Secured Borrowings [Member] | Residental mortgage securitizations [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	5,762		6,240
Third party liabilities	-5,511		-5,824
Noncontrolling interests	0		0
Net assets	251		416
Secured Borrowings And Variable Interest Entity [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Total VIE assets	30,646		39,568
Secured Borrowings And Variable Interest Entity [Member] | Variable Interest Entity Consolidated Carrying Amount [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Consolidated assets	27,419		36,970
Third party liabilities	-17,479		-26,211
Noncontrolling interests	-7		-48
Net assets	$9,933		$10,711
[1]	Our consolidated assets at September 30, 2013 and December 31, 2012, include the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Cash and due from banks, $171 million and $260 million; Trading assets, $186 million and $114 million; Securities available for sale, $1.4 billion and $2.8 billion; Mortgages held for sale, $66 million and $469 million; Net loans, $8.0 billion and $10.6 billion; Other assets, $348 million and 457 million, and Total assets, $10.2 billion and $14.6 billion, respectively.
[2]	Our consolidated liabilities at September 30, 2013 and December 31, 2012, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $23 million and $0 million; Accrued expenses and other liabilities, $103 million and $134 million; Long-term debt, $2.5 billion and $3.5 billion; and Total liabilities, $2.6 billion and $3.6 billion, respectively.

Mortgage_Banking_Activities_Te

Mortgage Banking Activities Textuals (Details) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2011

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2011

Sep. 30, 2013

Dec. 31, 2011

Sep. 30, 2012

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Dec. 31, 2011

Sep. 30, 2012

Settlement With Freddie Mac [Member]

Settlement With Freddie Mac [Member]

Retained earnings [Member]

Liability For Mortgage Loans Repurchase Losses [Member]

Residential Mortgage Servicing [Member]

Residential Mortgage Servicing [Member]

Amortized [Member]

Amortized [Member]

Amortized [Member]

Amortized [Member]

Amortized [Member]

Amortized [Member]

Amortized [Member]

Election of fair value option [Member]

Residential Mortgage Servicing [Member]

Mortgage Banking Activities (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Residential MSRs transferred from amortized MSRs

'

'

'

'

'

'

'

'

'

'

$315,000,000

'

'

'

'

'

'

'

Residential MSRs transferred to MSRs carried at Fair Value, Gross

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

350,000,000

Residential MSRs transferred to MSRs carried at Fair Value, Net

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

313,000,000

Cumulative effect of fair value election for certain residential mortgage servicing rights

'

'

'

'

2,000,000

'

'

2,000,000

'

'

'

'

'

'

'

'

'

'

Fair Value of amortized MSRs

'

'

'

'

'

'

'

'

'

316,000,000

'

1,525,000,000

1,533,000,000

1,400,000,000

1,399,000,000

1,450,000,000

1,756,000,000

'

Loss Contingency, Range of Possible Loss, Portion Not Accrued

'

'

'

'

'

'

'

'

1,400,000,000

'

'

'

'

'

'

'

'

'

Settlement/agreement with Freddie Mac related to loans sold to Freddie Mac prior to January 1, 2009

$829,000,000

$193,000,000

$1,187,000,000

$854,000,000

'

$746,000,000

$746,000,000

'

'

'

'

'

'

'

'

'

'

'

Mortgage_Banking_Activities_Mo

Mortgage Banking Activities, Mortgage Servicing Rights Carried at Fair Value (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Changes in MSRs measured at fair value	'	'	'	'
Fair value, beginning of period	'	'	$11,538	'
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	-213	-1,427	2,415	-3,216
Other changes in fair value	-425	-871	-1,818	-2,226
Total changes in fair value	-638	-2,298	597	-5,442
Fair value, end of period	14,501	'	14,501	'
Mortgage interest rates [Member]	'	'	'	'
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	61	-1,131	3,314	-2,480
Servicing and foreclosure costs [Member]	'	'	'	'
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	-34	-350	-174	-550
Discount rates [Member]	'	'	'	'
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	0	0	0	-344
Prepayment estimates and other [Member]	'	'	'	'
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	-240	54	-725	158
Carried at Fair Value [Member]	'	'	'	'
Changes in MSRs measured at fair value	'	'	'	'
Fair value, beginning of period	14,185	12,081	11,538	12,603
Servicing from securitizations or asset transfers	954	1,173	2,949	4,088
Sales	0	0	-583	-293
Net additions	954	1,173	2,366	3,795
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	-213	-1,427	2,415	-3,216
Other changes in fair value	-425	-871	-1,818	-2,226
Total changes in fair value	-638	-2,298	597	-5,442
Fair value, end of period	$14,501	$10,956	$14,501	$10,956

Mortgage_Banking_Activities_Am

Mortgage Banking Activities, Amortized Mortgage Servicing Rights (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Changes in amortized MSRs	'	'	'	'	'
Amortization	($63)	($58)	($187)	($172)	'
Valuation Allowance	'	'	'	'	'
Amortized MSRs, net	1,204	1,144	1,204	1,144	1,160
Amortized [Member]	'	'	'	'	'
Changes in amortized MSRs	'	'	'	'	'
Balance, beginning of period	1,176	1,130	1,160	1,445	'
Purchases	59	42	112	134	'
Servicing from securitizations or asset transfers	32	30	119	-263	'
Amortization	-63	-58	-187	-172	'
Balance, end of period	1,204	1,144	1,204	1,144	'
Valuation Allowance	'	'	'	'	'
Balance, beginning of period	0	0	0	-37	'
Reversal of provision for MSRs in excess of fair value	0	0	0	37	'
Balance, end of period	0	0	0	0	'
Fair value of amortized MSRs:	'	'	'	'	'
Beginning of period	1,533	1,450	1,400	1,756	'
End of period	$1,525	$1,399	$1,525	$1,399	'

Mortgage_Banking_Activities_Ma

Mortgage Banking Activities, Managed Servicing Portfolio Components (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Billions, unless otherwise specified
Components of Managed Servicing Portfolio [Abstract]	'	'
Serviced for others	$1,910	$1,906
Total managed servicing portfolio	2,377	2,400
Ratio of MSRs to related loans serviced for others	0.82%	0.67%
Commercial Mortgage Servicing [Member]	'	'
Components of Managed Servicing Portfolio [Abstract]	'	'
Serviced for others	416	408
Owned loans serviced	106	106
Subservicing	11	13
Total managed servicing portfolio	533	527
Residential Mortgage Servicing [Member]	'	'
Components of Managed Servicing Portfolio [Abstract]	'	'
Serviced for others	1,494	1,498
Owned loans serviced	344	368
Subservicing	6	7
Total managed servicing portfolio	$1,844	$1,873

Mortgage_Banking_Activities_No

Mortgage Banking Activities, Noninterest Income (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Servicing fees:	'	'	'	'
Contractually specified servicing fees	$1,108	$1,136	$3,335	$3,448
Late charges	56	66	174	195
Ancillary fees	91	89	258	229
Unreimbursed direct servicing costs	-289	-307	-774	-807
Net servicing fees	966	984	2,993	3,065
Changes in fair value of MSRs carried at fair value:	'	'	'	'
Net changes in valuation model inputs or assumptions	-213	-1,427	2,415	-3,216
Other changes in fair value	-425	-871	-1,818	-2,226
Total changes in fair value of MSRs carried at fair value	-638	-2,298	597	-5,442
Amortization	-63	-58	-187	-172
Net derivative gains (losses) from economic hedges	239	1,569	-2,192	3,677
Total servicing income, net	504	197	1,211	1,128
Net gains on mortgage loan origination/sales activities	1,104	2,610	5,993	7,442
Total mortgage banking noninterest income	1,608	2,807	7,204	8,570
Market-related valuation changes to MSRs, net of hedge results	$26	$142	$223	$461

Mortgage_Banking_Activities_Li

Mortgage Banking Activities, Liability for Mortgage Loan Repurchase Losses (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Liability For Mortgage Loan Repurchase Losses [Abstract]	'	'	'	'
Balance, beginning of period	$2,222	$1,764	$2,206	$1,326
Provision for repurchase losses:	'	'	'	'
Loan sales	28	75	127	209
Change in estimate	0	387	275	1,352
Total additions	28	462	402	1,561
Losses	-829	-193	-1,187	-854
Balance, end of period	$1,421	$2,033	$1,421	$2,033

Intangible_Assets_Details

Intangible Assets (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Amortized intangible assets:	'	'	'	'
Gross carrying value	$18,528	$18,300	'	'
Accumulated amortization	-11,189	-9,873	'	'
Net carrying Value	7,339	8,427	'	'
Unamortized intangible assets:	'	'	'	'
MSRs (carried at fair value)	14,501	11,538	'	'
Goodwill	25,637	25,637	25,637	25,115
Trademark	14	14	'	'
Amortized MSRs [Member]	'	'	'	'
Amortized intangible assets:	'	'	'	'
Gross carrying value	2,548	2,317	'	'
Accumulated amortization	-1,344	-1,157	'	'
Net carrying Value	1,204	1,160	'	'
Core deposit intangibles [Member]	'	'	'	'
Amortized intangible assets:	'	'	'	'
Gross carrying value	12,834	12,836	'	'
Accumulated amortization	-7,850	-6,921	'	'
Net carrying Value	4,984	5,915	'	'
Customer Relationships And Other [Member]	'	'	'	'
Amortized intangible assets:	'	'	'	'
Gross carrying value	3,146	3,147	'	'
Accumulated amortization	-1,995	-1,795	'	'
Net carrying Value	$1,151	$1,352	'	'

Intangible_Assets_Amortization

Intangible Assets, Amortization Expense (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]	'	'	'	'
Nine months ended September 30, 2013 (actual)	$375	$419	$1,129	$1,256
Finite Lived Intangible Assets [Member]	'	'	'	'
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]	'	'	'	'
Nine months ended September 30, 2013 (actual)	'	'	1,319	'
Estimate for the remainder of 2013	439	'	439	'
Estimate for year ended December 31,	'	'	'	'
2014	1,591	'	1,591	'
2015	1,446	'	1,446	'
2016	1,293	'	1,293	'
2017	1,166	'	1,166	'
2018	1,041	'	1,041	'
Amortized MSRs [Member]	'	'	'	'
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]	'	'	'	'
Nine months ended September 30, 2013 (actual)	'	'	187	'
Estimate for the remainder of 2013	63	'	63	'
Estimate for year ended December 31,	'	'	'	'
2014	228	'	228	'
2015	197	'	197	'
2016	162	'	162	'
2017	121	'	121	'
2018	88	'	88	'
Core deposit intangibles [Member]	'	'	'	'
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]	'	'	'	'
Nine months ended September 30, 2013 (actual)	'	'	932	'
Estimate for the remainder of 2013	310	'	310	'
Estimate for year ended December 31,	'	'	'	'
2014	1,113	'	1,113	'
2015	1,022	'	1,022	'
2016	919	'	919	'
2017	851	'	851	'
2018	769	'	769	'
Customer Relationships And Other [Member]	'	'	'	'
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]	'	'	'	'
Nine months ended September 30, 2013 (actual)	'	'	200	'
Estimate for the remainder of 2013	66	'	66	'
Estimate for year ended December 31,	'	'	'	'
2014	250	'	250	'
2015	227	'	227	'
2016	212	'	212	'
2017	194	'	194	'
2018	$184	'	$184	'

Intangible_Assets_Allocation_o

Intangible Assets, Allocation of Goodwill to Operating Segments (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2013	Dec. 31, 2012
Intangible Assets [Abstract]	'	'	'
Goodwill, Beginning Balance	$25,115	$25,637	$25,637
Goodwill from business combinations	522	'	'
Goodwill, Ending Balance	25,637	25,637	25,637
Wealth Brokerage and Retirement [Member]	'	'	'
Intangible Assets [Abstract]	'	'	'
Goodwill, Beginning Balance	371	371	371
Goodwill from business combinations	0	'	'
Goodwill, Ending Balance	371	371	371
Wholesale Banking [Member]	'	'	'
Intangible Assets [Abstract]	'	'	'
Goodwill, Beginning Balance	6,820	7,344	7,344
Goodwill from business combinations	524	'	'
Goodwill, Ending Balance	7,344	7,344	7,344
Community Banking [Member]	'	'	'
Intangible Assets [Abstract]	'	'	'
Goodwill, Beginning Balance	17,924	17,922	17,922
Goodwill from business combinations	-2	'	'
Goodwill, Ending Balance	$17,922	$17,922	$17,922

Guarantees_Pledged_Assets_and_2

Guarantees, Pledged Assets and Collateral Textuals (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Fed Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Member]

Fed Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Member]

Loans [Member]

Loans [Member]

Direct pay letters of credit (DPLCs) [Member]

Direct pay letters of credit (DPLCs) [Member]

Third party clearing indemnifications [Member]

Third party clearing indemnifications [Member]

Securities lending and other indemnifications [Member]

Securities lending and other indemnifications [Member]

Loans and MHFS sold with recourse [Member]

Loans and MHFS sold with recourse [Member]

Loans and MHFS sold with recourse [Member]

Loans and MHFS sold with recourse [Member]

Trading assets and other [Member]

Trading assets and other [Member]

Available for sale Securities [Member]

Available for sale Securities [Member]

Guarantees (Textuals) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum exposure to loss

$59,435,000,000

$61,600,000,000

'

'

'

'

$16,400,000,000

$18,500,000,000

$2,900,000,000

$2,100,000,000

$3,282,000,000

$2,541,000,000

'

'

'

'

'

'

'

'

Guarantor Obligations, Term

'

'

'

'

'

'

'

'

'

'

'These arrangements are for an indefinite period of time whereby we indemnify our clients against default by the borrower in returning these lent securities. This indemnity is supported by collateral received from the borrowers and is generally in the form of cash or highly liquid securities that are marked to market daily.

'

'

'

'

'

'

'

'

'

Collateral

412,000,000

443,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities Loaned

399,000,000

436,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Third-party clearing customer obligations

'

'

'

'

'

'

'

'

717,000,000

579,000,000

'

'

'

'

'

'

'

'

'

'

Collateral provided to third-party clearing agents

'

'

'

'

'

'

'

'

3,600,000,000

3,100,000,000

'

'

'

'

'

'

'

'

'

'

Percentage share of losses owed on loans and MHFS sold with recourse

'Primarily all of these programs and arrangements require that we share in the loans’ credit exposure for their remaining life by providing recourse to the GSE, up to 33.33% of actual losses incurred on a pro-rata basis.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans repurchased

'

'

'

'

'

'

'

'

'

'

'

'

8,000,000

5,000,000

26,000,000

21,000,000

'

'

'

'

Pledged collateral assets related to consolidated VIEs

10,200,000,000

14,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities owned and pledged as collateral available to be repledged, Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

32,500,000,000

27,400,000,000

'

'

Securities owned and pledged as collateral related to repurchase agreements not available to be repledged, Fair Value

9,600,000,000

9,100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,300,000,000

8,400,000,000

Net amounts in consolidated balance sheet

38,224,000,000

43,286,000,000

27,000,000,000

33,800,000,000

11,200,000,000

9,500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Non-cash collateral received, fair value

48,200,000,000

46,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Collateral received with the right to sell or repledge

48,200,000,000

46,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Collateral sold or repledged

27,500,000,000

29,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Non-cash collateral pledged, fair value

$42,100,000,000

$36,400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Guarantees_Pledged_Assets_and_3

Guarantees, Pledged Assets and Collateral (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Guarantees [Abstract]	'	'
Carrying value	$1,156	$1,606
Maximum exposure to loss, expires in one year or less	20,534	23,548
Maximum exposure to loss, expires in one year through three years	17,273	16,069
Maximum exposure to loss, expires in three years through five years	7,172	9,768
Maximum exposure to loss, expires after five years	14,456	12,215
Maximum exposure to loss	59,435	61,600
Pledged Assets	'	'
Trading assets and other	33,808	28,031
Securities available for sale	99,291	96,018
Loans	378,004	360,171
Total pledged assets	511,103	484,220
Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	17,259	19,443
Standby Letters of Credit [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	54	42
Maximum exposure to loss, expires in one year or less	15,659	19,463
Maximum exposure to loss, expires in one year through three years	12,211	11,782
Maximum exposure to loss, expires in three years through five years	3,930	6,531
Maximum exposure to loss, expires after five years	2,719	1,983
Maximum exposure to loss	34,519	39,759
Standby Letters of Credit [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	9,039	11,331
Securities lending and other indemnifications [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	0	0
Maximum exposure to loss, expires in one year or less	2	3
Maximum exposure to loss, expires in one year through three years	7	7
Maximum exposure to loss, expires in three years through five years	37	20
Maximum exposure to loss, expires after five years	3,236	2,511
Maximum exposure to loss	3,282	2,541
Securities lending and other indemnifications [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	40	118
Liquidity agreements [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	0	0
Maximum exposure to loss, expires in one year or less	0	0
Maximum exposure to loss, expires in one year through three years	0	0
Maximum exposure to loss, expires in three years through five years	0	0
Maximum exposure to loss, expires after five years	14	3
Maximum exposure to loss	14	3
Liquidity agreements [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	4	3
Written put options [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	981	1,427
Maximum exposure to loss, expires in one year or less	3,766	2,951
Maximum exposure to loss, expires in one year through three years	4,465	3,873
Maximum exposure to loss, expires in three years through five years	2,375	2,475
Maximum exposure to loss, expires after five years	2,495	2,575
Maximum exposure to loss	13,101	11,874
Written put options [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	4,409	3,953
Loans and MHFS sold with recourse [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	87	99
Maximum exposure to loss, expires in one year or less	109	443
Maximum exposure to loss, expires in one year through three years	464	357
Maximum exposure to loss, expires in three years through five years	813	647
Maximum exposure to loss, expires after five years	4,963	4,426
Maximum exposure to loss	6,349	5,873
Loans and MHFS sold with recourse [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	3,654	3,905
Contingent consideration [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	31	35
Maximum exposure to loss, expires in one year or less	16	11
Maximum exposure to loss, expires in one year through three years	96	24
Maximum exposure to loss, expires in three years through five years	0	94
Maximum exposure to loss, expires after five years	0	0
Maximum exposure to loss	112	129
Contingent consideration [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	110	129
Other guarantees [Member]	'	'
Guarantees [Abstract]	'	'
Carrying value	3	3
Maximum exposure to loss, expires in one year or less	982	677
Maximum exposure to loss, expires in one year through three years	30	26
Maximum exposure to loss, expires in three years through five years	17	1
Maximum exposure to loss, expires after five years	1,029	717
Maximum exposure to loss	2,058	1,421
Other guarantees [Member] | Non-investment grade [Member]	'	'
Guarantees [Abstract]	'	'
Maximum exposure to loss	$3	$4

Guarantees_Offsetting_of_Resal

Guarantees, Offsetting of Resale and Repurchase Agreements and Securities Borrowing and Lending (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Resale and securities borrowing arrangements	'	'
Gross amounts recognized	$43,325	$45,847
Gross amounts offset in consolidated balance sheet	-5,101	-2,561
Net amounts in consolidated balance sheet	38,224	43,286
Noncash collateral not recognized in consolidated balance sheet	-37,920	-42,920
Net amount	304	366
Repurchase and securities lending arrangements	'	'
Gross amounts recognized	41,208	35,876
Gross amounts offset in consolidated balance sheet	-5,101	-2,561
Net amounts in consolidated balance sheet	36,107	33,315
Noncash collateral pledged but not netted in consolidated balance sheet	-35,677	-33,050
Net amount	$430	$265

Legal_Actions_Details

Legal Actions (Details) (USD $)	9 Months Ended
	Sep. 30, 2013
Medical Capital Corporation Litigation [Member]	'
Legal Actions (Textual) [Abstract]	'
Amounts to be paid in connection with legal or regulatory matters	$105,000,000
In re Order of Posting Litigation [Member]	'
Legal Actions (Textual) [Abstract]	'
Amounts to be paid in connection with legal or regulatory matters	203,000,000
Mortgage-Backed Certificates Litigation [Member]	'
Legal Actions (Textual) [Abstract]	'
Amounts to be paid in connection with legal or regulatory matters	125,000,000
In re FNMA and FHLMC combined settlements [Member]	'
Legal Actions (Textual) [Abstract]	'
Amounts to be paid in connection with legal or regulatory matters	335,000,000
Liability for Contingent Litigation Losses [Member]	'
Legal Actions (Textual) [Abstract]	'
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$1,000,000,000

Derivatives_Textuals_Details

Derivatives Textuals (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Derivatives (Textual) [Abstract]	'	'	'	'	'
Certain derivatives combined for designation as a hedge on a single instrument	$2,700,000,000	'	$2,700,000,000	'	$4,700,000,000
Derivative assets subject to enforceable master netting arrangements	57,300,000,000	'	57,300,000,000	'	68,900,000,000
Derivative liabilities subject to enforceable master netting arrangements	63,000,000,000	'	63,000,000,000	'	75,800,000,000
Valuation adjustments for derivative assets	293,000,000	'	293,000,000	'	352,000,000
Valuation adjustments for derivative liabilities	81,000,000	'	81,000,000	'	68,000,000
Cash collateral netted against derivative assets	4,900,000,000	'	4,900,000,000	'	5,000,000,000
Cash collateral netted against derivative liabilities	12,000,000,000	'	12,000,000,000	'	14,500,000,000
Fair Value Asset derivatives, net	16,372,000,000	'	16,372,000,000	'	23,816,000,000
Time value component recognized as net interest income (expense) on forward derivatives excluded from the assessment of hedge effectiveness	-1,000,000	-3,000,000	-5,000,000	-5,000,000	'
Deferred net gains on derivatives in other comprehensive income	'	'	238,000,000	'	'
Maximum length of time hedged in cash flow hedge	'	'	'5 years	'	'
Change in value of derivatives excluded from assessment of cash flow hedge effectiveness	0	0	0	0	'
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	239,000,000	1,569,000,000	-2,192,000,000	3,677,000,000	'
Aggregate fair value of derivatives used for economic hedges net asset (liability)	1,300,000,000	'	1,300,000,000	'	87,000,000
Aggregate fair value of derivative loan commitments net asset (liability)	222,000,000	'	222,000,000	'	497,000,000
Aggregate fair value of derivative instruments with credit-risk-related contingent features, net liability	15,300,000,000	'	15,300,000,000	'	16,200,000,000
Collateral for derivative instruments with credit-risk-related contingent features	12,300,000,000	'	12,300,000,000	'	14,300,000,000
Additional collateral for derivative instruments with credit-risk-related contingent features	3,100,000,000	'	3,100,000,000	'	1,900,000,000
Derivative assets not subject to enforceable master netting arrangements	13,600,000,000	'	13,600,000,000	'	17,000,000,000
Derivative liabilities not subject to enforceable master netting arrangements	7,400,000,000	'	7,400,000,000	'	7,300,000,000
Trading assets [Member]	'	'	'	'	'
Derivatives (Textual) [Abstract]	'	'	'	'	'
Fair Value Asset derivatives, net	13,400,000,000	'	13,400,000,000	'	18,300,000,000
Other Assets [Member]	'	'	'	'	'
Derivatives (Textual) [Abstract]	'	'	'	'	'
Fair Value Asset derivatives, net	$3,000,000,000	'	$3,000,000,000	'	$5,500,000,000

Derivatives_Notional_or_Contra

Derivatives, Notional or Contractual Amounts (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair value asset derivatives, netting	($54,567)	($62,108)
Fair Value Asset derivatives, net	16,372	23,816
Fair Value Liability Derivatives, netting	-61,375	-71,116
Fair Value Liability derivatives, net	8,975	11,942
Interest Rate Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	55,984	71,351
Fair value asset derivatives, netting	-45,955	-53,708
Fair Value Asset derivatives, net	10,029	17,643
Fair Value Liability derivatives	55,314	68,695
Fair Value Liability Derivatives, netting	-52,268	-62,559
Fair Value Liability derivatives, net	3,046	6,136
Foreign Exchange Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	5,096	5,524
Fair value asset derivatives, netting	-4,002	-3,449
Fair Value Asset derivatives, net	1,094	2,075
Fair Value Liability derivatives	4,336	3,579
Fair Value Liability Derivatives, netting	-2,988	-1,804
Fair Value Liability derivatives, net	1,348	1,775
Equity Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	5,436	3,783
Fair value asset derivatives, netting	-2,736	-2,428
Fair Value Asset derivatives, net	2,700	1,355
Fair Value Liability derivatives	5,638	4,164
Fair Value Liability Derivatives, netting	-2,995	-2,618
Fair Value Liability derivatives, net	2,643	1,546
Commodity Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	3,041	3,456
Fair value asset derivatives, netting	-732	-1,080
Fair Value Asset derivatives, net	2,309	2,376
Fair Value Liability derivatives	2,937	3,590
Fair Value Liability Derivatives, netting	-1,153	-1,394
Fair Value Liability derivatives, net	1,784	2,196
Credit Contracts Protection Purchased [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	1,080	1,495
Fair value asset derivatives, netting	-883	-1,147
Fair Value Asset derivatives, net	197	348
Fair Value Liability derivatives	325	329
Fair Value Liability Derivatives, netting	-283	-291
Fair Value Liability derivatives, net	42	38
Credit Contracts Protection Sold [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	302	315
Fair value asset derivatives, netting	-259	-296
Fair Value Asset derivatives, net	43	19
Fair Value Liability derivatives	1,776	2,623
Fair Value Liability Derivatives, netting	-1,688	-2,450
Fair Value Liability derivatives, net	88	173
Other Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Liability derivatives	24	78
Fair Value Liability Derivatives, netting	0	0
Fair Value Liability derivatives, net	24	78
Derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	70,939	85,924
Fair Value Liability derivatives	70,350	83,058
Designated as Hedging Instrument [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	6,412	9,092
Fair Value Liability derivatives	3,006	2,970
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	91,455	92,004
Fair Value Asset derivatives	5,022	7,284
Fair Value Liability derivatives	2,409	2,696
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	27,429	27,382
Fair Value Asset derivatives	1,390	1,808
Fair Value Liability derivatives	597	274
Not Designated as Hedging Instrument [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	64,527	76,832
Fair Value Liability derivatives	67,344	80,088
Not Designated as Hedging Instrument [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	62,282	76,379
Fair Value Liability derivatives	65,423	79,202
Not Designated as Hedging Instrument [Member] | Free standing derivatives (economic hedges) [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Fair Value Asset derivatives	2,245	453
Fair Value Liability derivatives	1,921	886
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	3,486,515	2,774,783
Fair Value Asset derivatives	49,067	63,617
Fair Value Liability derivatives	51,471	65,305
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	257,974	334,555
Fair Value Asset derivatives	1,895	450
Fair Value Liability derivatives	1,434	694
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	176,214	166,061
Fair Value Asset derivatives	3,629	3,713
Fair Value Liability derivatives	3,432	3,241
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	13,052	3,074
Fair Value Asset derivatives	77	3
Fair Value Liability derivatives	307	64
Not Designated as Hedging Instrument [Member] | Equity Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	78,950	71,958
Fair Value Asset derivatives	5,163	3,783
Fair Value Liability derivatives	5,484	4,114
Not Designated as Hedging Instrument [Member] | Equity Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	2,396	75
Fair Value Asset derivatives	273	0
Fair Value Liability derivatives	154	50
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	99,926	90,732
Fair Value Asset derivatives	3,041	3,456
Fair Value Liability derivatives	2,937	3,590
Not Designated as Hedging Instrument [Member] | Credit Contracts Protection Purchased [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	23,652	29,021
Fair Value Asset derivatives	1,080	1,495
Fair Value Liability derivatives	323	329
Not Designated as Hedging Instrument [Member] | Credit Contracts Protection Purchased [Member] | Free standing derivatives (economic hedges) [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	1	16
Fair Value Asset derivatives	0	0
Fair Value Liability derivatives	2	0
Not Designated as Hedging Instrument [Member] | Credit Contracts Protection Sold [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	20,558	26,455
Fair Value Asset derivatives	302	315
Fair Value Liability derivatives	1,776	2,623
Not Designated as Hedging Instrument [Member] | Other Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]	'	'
Notional or contractual amount	2,131	2,296
Fair Value Asset derivatives	0	0
Fair Value Liability derivatives	$24	$78

Derivatives_Balance_Sheet_Offs

Derivatives, Balance Sheet Offsetting of Assets and Liabilities (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Derivative Assets	'	'
Fair value asset derivatives, netting	($54,567)	($62,108)
Fair Value Asset derivatives, net	16,372	23,816
Gross amounts not offset in consolidated balance sheet	-1,189	-2,884
Net amounts	15,183	20,932
Derivative Liabilities	'	'
Fair Value Liability Derivatives, netting	-61,375	-71,116
Net amounts in consolidated balance sheet	8,975	11,942
Gross amounts not offset in consolidated balance sheet	-326	-342
Net amounts	8,649	11,600
Interest Rate Contract [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	55,984	71,351
Fair value asset derivatives, netting	-45,955	-53,708
Fair Value Asset derivatives, net	10,029	17,643
Gross amounts not offset in consolidated balance sheet	-963	-2,692
Net amounts	9,066	14,951
Percent exchanged in the over the counter market	74.00%	94.00%
Derivative Liabilities	'	'
Gross amounts recognized	55,314	68,695
Fair Value Liability Derivatives, netting	-52,268	-62,559
Net amounts in consolidated balance sheet	3,046	6,136
Gross amounts not offset in consolidated balance sheet	-192	-287
Net amounts	2,854	5,849
Percent exchanged in the over the counter market	73.00%	92.00%
Foreign Exchange Contract [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	5,096	5,524
Fair value asset derivatives, netting	-4,002	-3,449
Fair Value Asset derivatives, net	1,094	2,075
Gross amounts not offset in consolidated balance sheet	-16	-105
Net amounts	1,078	1,970
Percent exchanged in the over the counter market	100.00%	100.00%
Derivative Liabilities	'	'
Gross amounts recognized	4,336	3,579
Fair Value Liability Derivatives, netting	-2,988	-1,804
Net amounts in consolidated balance sheet	1,348	1,775
Gross amounts not offset in consolidated balance sheet	0	-55
Net amounts	1,348	1,720
Percent exchanged in the over the counter market	100.00%	100.00%
Equity Contract [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	5,436	3,783
Fair value asset derivatives, netting	-2,736	-2,428
Fair Value Asset derivatives, net	2,700	1,355
Gross amounts not offset in consolidated balance sheet	-109	0
Net amounts	2,591	1,355
Percent exchanged in the over the counter market	88.00%	89.00%
Derivative Liabilities	'	'
Gross amounts recognized	5,638	4,164
Fair Value Liability Derivatives, netting	-2,995	-2,618
Net amounts in consolidated balance sheet	2,643	1,546
Gross amounts not offset in consolidated balance sheet	-134	0
Net amounts	2,509	1,546
Percent exchanged in the over the counter market	94.00%	95.00%
Commodity Contract [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	3,041	3,456
Fair value asset derivatives, netting	-732	-1,080
Fair Value Asset derivatives, net	2,309	2,376
Gross amounts not offset in consolidated balance sheet	-67	-27
Net amounts	2,242	2,349
Percent exchanged in the over the counter market	47.00%	48.00%
Derivative Liabilities	'	'
Gross amounts recognized	2,937	3,590
Fair Value Liability Derivatives, netting	-1,153	-1,394
Net amounts in consolidated balance sheet	1,784	2,196
Gross amounts not offset in consolidated balance sheet	0	0
Net amounts	1,784	2,196
Percent exchanged in the over the counter market	75.00%	79.00%
Credit Contracts Protection Purchased [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	1,080	1,495
Fair value asset derivatives, netting	-883	-1,147
Fair Value Asset derivatives, net	197	348
Gross amounts not offset in consolidated balance sheet	-34	-56
Net amounts	163	292
Percent exchanged in the over the counter market	100.00%	100.00%
Derivative Liabilities	'	'
Gross amounts recognized	325	329
Fair Value Liability Derivatives, netting	-283	-291
Net amounts in consolidated balance sheet	42	38
Gross amounts not offset in consolidated balance sheet	0	0
Net amounts	42	38
Percent exchanged in the over the counter market	92.00%	100.00%
Credit Contracts Protection Sold [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	302	315
Fair value asset derivatives, netting	-259	-296
Fair Value Asset derivatives, net	43	19
Gross amounts not offset in consolidated balance sheet	0	-4
Net amounts	43	15
Percent exchanged in the over the counter market	96.00%	100.00%
Derivative Liabilities	'	'
Gross amounts recognized	1,776	2,623
Fair Value Liability Derivatives, netting	-1,688	-2,450
Net amounts in consolidated balance sheet	88	173
Gross amounts not offset in consolidated balance sheet	0	0
Net amounts	88	173
Percent exchanged in the over the counter market	100.00%	100.00%
Other Contract [Member]	'	'
Derivative Liabilities	'	'
Gross amounts recognized	24	78
Fair Value Liability Derivatives, netting	0	0
Net amounts in consolidated balance sheet	24	78
Gross amounts not offset in consolidated balance sheet	0	0
Net amounts	24	78
Percent exchanged in the over the counter market	100.00%	100.00%
Derivatives [Member]	'	'
Derivative Assets	'	'
Gross amounts recognized	70,939	85,924
Derivative Liabilities	'	'
Gross amounts recognized	$70,350	$83,058

Derivatives_Net_Gains_Losses_i

Derivatives, Net Gains (Losses) in Income related to Fair Value Hedges (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Gains Losses Recognized In Income Statement Related To Derivatives In Fair Value Hedging Relationships [Abstract]	'	'	'	'
Net interest income (expense) recognized on derivatives	$315	$355	$984	$1,124
Gains (losses) recorded in noninterest income recognized on derivatives	218	294	-2,050	447
Gains (losses) recorded in noninterest income recognized on hedged item	-274	-331	1,836	-383
Net recognized on fair value hedges (ineffective portion)	-56	-37	-214	64
Available for sale Securities [Member] | Interest Rate Contract [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives In Fair Value Hedging Relationships [Abstract]	'	'	'	'
Net interest income (expense) recognized on derivatives	-155	-115	-416	-340
Gains (losses) recorded in noninterest income recognized on derivatives	165	-19	1,368	-229
Gains (losses) recorded in noninterest income recognized on hedged item	-174	24	-1,352	222
Net recognized on fair value hedges (ineffective portion)	-9	5	16	-7
Available for sale Securities [Member] | Foreign Exchange Contract [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives In Fair Value Hedging Relationships [Abstract]	'	'	'	'
Net interest income (expense) recognized on derivatives	-2	0	-4	-4
Gains (losses) recorded in noninterest income recognized on derivatives	-273	-115	39	71
Gains (losses) recorded in noninterest income recognized on hedged item	271	130	-32	-32
Net recognized on fair value hedges (ineffective portion)	-2	15	7	39
Long-term debt [Member] | Interest Rate Contract [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives In Fair Value Hedging Relationships [Abstract]	'	'	'	'
Net interest income (expense) recognized on derivatives	413	415	1,205	1,281
Gains (losses) recorded in noninterest income recognized on derivatives	-406	-67	-2,800	267
Gains (losses) recorded in noninterest income recognized on hedged item	349	26	2,613	-186
Net recognized on fair value hedges (ineffective portion)	-57	-41	-187	81
Long-term debt [Member] | Foreign Exchange Contract [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives In Fair Value Hedging Relationships [Abstract]	'	'	'	'
Net interest income (expense) recognized on derivatives	69	55	206	186
Gains (losses) recorded in noninterest income recognized on derivatives	687	502	-693	351
Gains (losses) recorded in noninterest income recognized on hedged item	-678	-515	650	-393
Net recognized on fair value hedges (ineffective portion)	9	-13	-43	-42
Mortgages held for sale [Member] | Interest Rate Contract [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives In Fair Value Hedging Relationships [Abstract]	'	'	'	'
Net interest income (expense) recognized on derivatives	-10	0	-7	1
Gains (losses) recorded in noninterest income recognized on derivatives	45	-7	36	-13
Gains (losses) recorded in noninterest income recognized on hedged item	-42	4	-43	6
Net recognized on fair value hedges (ineffective portion)	$3	($3)	($7)	($7)

Derivatives_Net_Gains_Losses_r

Derivatives, Net Gains (Losses) related to Cash Flow Hedges (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Gains Losses Recognized Related to Derivatives in Cash Flow Hedging Relationships [Abstract]	'	'	'	'
Gains (losses) (pre tax) recognized in OCI on derivatives	($7)	$24	($10)	$63
Gains (pre tax) reclassified from cumulative OCI into net income	69	89	225	295
Gains (losses) (pre tax) recognized in noninterest income for hedge ineffectiveness.	($1)	($1)	$0	($2)

Derivatives_Net_Gains_Losses_i1

Derivatives, Net Gains (Losses) in Income related to Derivatives Not Designated as Hedging Instruments (Details) (Not Designated as Hedging Instrument [Member], USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Net gains recognized related to derivatives not designated as hedging instruments	($17)	$1,656	$1,822	$4,796
Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	154	3,059	191	7,068
Free standing derivatives (economic hedges) [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-171	-1,403	1,631	-2,272
Foreign Exchange Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	69	131	484	380
Foreign Exchange Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-227	-37	-207	-38
Equity Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-153	99	-410	20
Equity Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-50	0	-88	1
Commodity Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	52	-72	276	-116
Credit Contract [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-11	-29	-31	-18
Credit Contract [Member] | Free standing derivatives (economic hedges) [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	0	-3	-6	-13
Interest Rate Contracts Recognized In Noninterest Income Other [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-13	136	568	466
Interest Rate Contracts Recognized In Noninterest Income Other [Member] | Free standing derivatives (economic hedges) [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	-3	-7	95	-40
Interest Rate Contracts Recognized In Noninterest Income Mortgage Banking [Member] | Customer accommodation trading and other free standing derivatives [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	210	2,794	-696	6,336
Interest Rate Contracts Recognized In Noninterest Income Mortgage Banking [Member] | Free standing derivatives (economic hedges) [Member]	'	'	'	'
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]	'	'	'	'
Gain (Loss) on Derivative Instruments	$109	($1,356)	$1,837	($2,182)

Derivatives_Sold_and_Purchased

Derivatives, Sold and Purchased Credit Derivatives (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	1,776	2,623
Notional amount Protection sold	20,558	26,455
Notional amount Protection purchased with identical underlyings	10,330	14,930
Notional Net protection sold	10,228	11,525
Notional Other protection purchased	13,322	13,981
Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	11,113	15,104
Structured products [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	1,254	1,787
Notional amount Protection sold	1,753	2,433
Notional amount Protection purchased with identical underlyings	753	948
Notional Net protection sold	1,000	1,485
Notional Other protection purchased	356	393
Structured products [Member] | Minimum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	1-Jan-16	1-Jan-16
Structured products [Member] | Maximum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	31-Dec-56	31-Dec-56
Structured products [Member] | Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	1,419	2,039
Credit Default Swap [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	1	4
Notional amount Protection sold	3,064	3,520
Notional amount Protection purchased with identical underlyings	2,871	3,444
Notional Net protection sold	193	76
Notional Other protection purchased	618	616
Credit Default Swap [Member] | Minimum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	1-Jan-14	1-Jan-13
Credit Default Swap [Member] | Maximum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	31-Dec-18	31-Dec-17
Credit Default Swap [Member] | Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	303	348
Corporate Bond Securities [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	69	240
Notional amount Protection sold	11,355	15,845
Notional amount Protection purchased with identical underlyings	6,120	9,636
Notional Net protection sold	5,235	6,209
Notional Other protection purchased	6,759	7,701
Corporate Bond Securities [Member] | Minimum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	1-Jan-13	1-Jan-13
Corporate Bond Securities [Member] | Maximum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	31-Dec-21	31-Dec-21
Corporate Bond Securities [Member] | Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	5,953	8,448
Total asset-backed securities [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	50	57
Notional amount Protection sold	57	64
Notional amount Protection purchased with identical underlyings	3	6
Notional Net protection sold	54	58
Notional Other protection purchased	88	92
Total asset-backed securities [Member] | Minimum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	1-Jan-37	1-Jan-37
Total asset-backed securities [Member] | Maximum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	31-Dec-46	31-Dec-46
Total asset-backed securities [Member] | Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	57	64
Commercial [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	401	531
Notional amount Protection sold	1,149	1,249
Notional amount Protection purchased with identical underlyings	570	790
Notional Net protection sold	579	459
Notional Other protection purchased	618	524
Commercial [Member] | Minimum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	1-Jan-49	1-Jan-49
Commercial [Member] | Maximum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	31-Dec-52	31-Dec-52
Commercial [Member] | Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	214	861
Other Credit Derivatives [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Fair value liability	1	4
Notional amount Protection sold	3,180	3,344
Notional amount Protection purchased with identical underlyings	13	106
Notional Net protection sold	3,167	3,238
Notional Other protection purchased	4,883	4,655
Other Credit Derivatives [Member] | Minimum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	1-Jan-13	1-Jan-13
Other Credit Derivatives [Member] | Maximum [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Derivative range of maturity dates	31-Dec-56	31-Dec-56
Other Credit Derivatives [Member] | Non-investment Grade [Member]	'	'
Details of Sold and Purchased Credit Derivatives [Abstract]	'	'
Notional amount Protection sold	3,167	3,344

Fair_Values_of_Assets_and_Liab2

Fair Values of Assets and Liabilities Textuals (Details) (USD $)

9 Months Ended

12 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Private Equity Funds [Member]

Venture Capital Funds [Member]

Offshore Funds [Member]

Offshore Funds [Member]

US States and Political Subdivisions [Member]

US States and Political Subdivisions [Member]

Lease Financing [Member]

Lease Financing [Member]

Non modified loans [Member]

Non modified loans [Member]

Non modified loans [Member]

Non modified loans [Member]

Residential [Member]

Residential [Member]

Residential [Member]

Residential [Member]

Consumer [Member]

Consumer [Member]

Collateralized debt obligations [Member]

Collateralized debt obligations [Member]

Collateralized loan obligations [Member]

Available for sale Securities [Member]

Carrying amount [Member]

Carrying amount [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Estimated fair value [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

Minimum [Member]

Government Insured Or Guaranteed [Member]

Government Insured Or Guaranteed [Member]

Non Government Insured Or Guaranteed [Member]

Non Government Insured Or Guaranteed [Member]

Level 1 [Member]

Level 1 [Member]

Level 2 [Member]

Level 2 [Member]

Level 3 [Member]

Level 3 [Member]

Fair Values of Assets and Liabilities (Textual) [Abstract]

'

'

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'

'

'

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'

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'

'

'

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'

'

'

'

'

'

'

'

'

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'

Total trading assets (excluding derivatives)

'

'

'

'

'

'

'

'

'

'

'

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'

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'

$5,000,000

$21,000,000

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'

'

'

'

'

'

'

'

'

'

'

Securities available for sale

259,399,000,000

'

235,199,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

700,000,000

644,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Net unrealized gains (losses) on trading securities

-215,000,000

464,000,000

305,000,000

'

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Fair Value Disclosure, Transfers from Level 3 to Level 2

'

'

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5,200,000,000

9,100,000,000

'

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'

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'

'

'

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'

'

'

'

202,000,000

10,600,000,000

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Trading and available for sale securities

'

'

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705,000,000

665,000,000

'

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Cost to service per loan

'

'

'

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'

339

437

87

90

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'

'

'

'

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'

Mortgages held for sale

23,209,000,000

'

42,305,000,000

'

'

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'

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'

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'

'

'

853,000,000

942,000,000

69,000,000

103,000,000

'

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'

'

'

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'

Redemption restriction for investment

'

'

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'

187,000,000

189,000,000

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'

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'

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Liquidation period

'

'

'

'12 years

'5 years

'

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'

'

Loans

812,325,000,000

'

799,574,000,000

'

'

'

'

'

'

11,688,000,000

12,424,000,000

'

'

'

'

'

'

'

'

440,280,000,000

438,376,000,000

'

'

'

'

'

'

785,388,000,000

772,351,000,000

0

0

56,776,000,000

56,237,000,000

728,612,000,000

716,114,000,000

Capital Lease Obligation

11,000,000

'

12,000,000

'

'

'

'

'

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'

'

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'

'

'

'

'

'

'

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'

Loan Commitments And Standby, Commercial And Similar Letters of Credit

'

'

'

'

'

'

'

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'

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'

'

'

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'

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'

'

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'

617,000,000

586,000,000

617,000,000

586,000,000

'

'

'

'

'

'

Total derivative loan commitments

$222,000,000

'

$497,000,000

'

'

'

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'

Fair_Value_Measurements_From_B

Fair Value, Measurements From Brokers or Third Party Pricing Services (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Financial assets:	'	'
Loans held for sale	$2	$6
Brokers [Member] | Level 1 [Member]	'	'
Financial assets:	'	'
Trading assets (excluding derivatives)	0	0
Total Securities Available for Sale	0	0
Derivatives (trading and other assets)	0	0
Financial liabilities:	'	'
Fair Value Liability derivatives	0	0
Other liabilities	0	0
Brokers [Member] | Level 1 [Member] | Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 1 [Member] | US Treasury and Government [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 1 [Member] | US States and Political Subdivisions [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 1 [Member] | Mortgage Backed Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 1 [Member] | Other Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 1 [Member] | Equity Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 2 [Member]	'	'
Financial assets:	'	'
Trading assets (excluding derivatives)	311	406
Total Securities Available for Sale	16,967	1,657
Derivatives (trading and other assets)	5	8
Financial liabilities:	'	'
Fair Value Liability derivatives	-18	-26
Other liabilities	-140	-121
Brokers [Member] | Level 2 [Member] | Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	16,967	1,654
Brokers [Member] | Level 2 [Member] | US Treasury and Government [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	1,491	138
Brokers [Member] | Level 2 [Member] | Other Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	15,476	1,516
Brokers [Member] | Level 2 [Member] | Equity Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	3
Brokers [Member] | Level 3 [Member]	'	'
Financial assets:	'	'
Trading assets (excluding derivatives)	6	8
Total Securities Available for Sale	3,066	12,469
Derivatives (trading and other assets)	0	0
Financial liabilities:	'	'
Fair Value Liability derivatives	0	0
Other liabilities	0	0
Brokers [Member] | Level 3 [Member] | Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	3,066	12,469
Brokers [Member] | Level 3 [Member] | US Treasury and Government [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 3 [Member] | US States and Political Subdivisions [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Brokers [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	1	4
Brokers [Member] | Level 3 [Member] | Other Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	3,065	12,465
Brokers [Member] | Level 3 [Member] | Equity Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Third party pricing services [Member] | Level 1 [Member]	'	'
Financial assets:	'	'
Trading assets (excluding derivatives)	1,540	1,314
Total Securities Available for Sale	574	944
Derivatives (trading and other assets)	0	0
Financial liabilities:	'	'
Fair Value Liability derivatives	0	0
Other liabilities	0	0
Third party pricing services [Member] | Level 1 [Member] | Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	566	915
Third party pricing services [Member] | Level 1 [Member] | US Treasury and Government [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	566	915
Third party pricing services [Member] | Level 1 [Member] | US States and Political Subdivisions [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Third party pricing services [Member] | Level 1 [Member] | Mortgage Backed Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Third party pricing services [Member] | Level 1 [Member] | Other Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Third party pricing services [Member] | Level 1 [Member] | Equity Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	8	29
Third party pricing services [Member] | Level 2 [Member]	'	'
Financial assets:	'	'
Trading assets (excluding derivatives)	918	1,016
Total Securities Available for Sale	222,300	192,058
Derivatives (trading and other assets)	481	602
Financial liabilities:	'	'
Fair Value Liability derivatives	-486	-634
Other liabilities	-49	-104
Third party pricing services [Member] | Level 2 [Member] | Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	221,675	191,284
Third party pricing services [Member] | Level 2 [Member] | US Treasury and Government [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	5,840	6,231
Third party pricing services [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	38,584	35,036
Third party pricing services [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	149,424	121,703
Third party pricing services [Member] | Level 2 [Member] | Other Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	27,827	28,314
Third party pricing services [Member] | Level 2 [Member] | Equity Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	625	774
Third party pricing services [Member] | Level 3 [Member]	'	'
Financial assets:	'	'
Trading assets (excluding derivatives)	0	0
Total Securities Available for Sale	406	441
Derivatives (trading and other assets)	2	0
Financial liabilities:	'	'
Fair Value Liability derivatives	0	0
Other liabilities	0	0
Third party pricing services [Member] | Level 3 [Member] | Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	406	441
Third party pricing services [Member] | Level 3 [Member] | US Treasury and Government [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	0	0
Third party pricing services [Member] | Level 3 [Member] | US States and Political Subdivisions [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	63	0
Third party pricing services [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	273	292
Third party pricing services [Member] | Level 3 [Member] | Other Debt Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	70	149
Third party pricing services [Member] | Level 3 [Member] | Equity Securities [Member]	'	'
Financial assets:	'	'
Total Securities Available for Sale	$0	$0

Fair_Value_Assets_and_Liabilit

Fair Value, Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Assets:	'	'
Mortgages held for sale	$23,209	$42,305
Loans held for sale	2	6
Loans	6,051	6,206
MSRs (carried at fair value)	14,501	11,538
Fair value asset derivatives, netting	-54,567	-62,108
Fair Value Asset derivatives, net	16,372	23,816
Liabilities:	'	'
Fair Value Liability Derivatives, netting	61,375	71,116
Fair Value Liability derivatives, net	-8,975	-11,942
Interest Rate Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	55,984	71,351
Fair value asset derivatives, netting	-45,955	-53,708
Fair Value Asset derivatives, net	10,029	17,643
Liabilities:	'	'
Total derivative liabilities	-55,314	-68,695
Fair Value Liability Derivatives, netting	52,268	62,559
Fair Value Liability derivatives, net	-3,046	-6,136
Commodity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	3,041	3,456
Fair value asset derivatives, netting	-732	-1,080
Fair Value Asset derivatives, net	2,309	2,376
Liabilities:	'	'
Total derivative liabilities	-2,937	-3,590
Fair Value Liability Derivatives, netting	1,153	1,394
Fair Value Liability derivatives, net	-1,784	-2,196
Equity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	5,436	3,783
Fair value asset derivatives, netting	-2,736	-2,428
Fair Value Asset derivatives, net	2,700	1,355
Liabilities:	'	'
Total derivative liabilities	-5,638	-4,164
Fair Value Liability Derivatives, netting	2,995	2,618
Fair Value Liability derivatives, net	-2,643	-1,546
Foreign Exchange Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	5,096	5,524
Fair value asset derivatives, netting	-4,002	-3,449
Fair Value Asset derivatives, net	1,094	2,075
Liabilities:	'	'
Total derivative liabilities	-4,336	-3,579
Fair Value Liability Derivatives, netting	2,988	1,804
Fair Value Liability derivatives, net	-1,348	-1,775
Other Contract [Member]	'	'
Liabilities:	'	'
Total derivative liabilities	-24	-78
Fair Value Liability Derivatives, netting	0	0
Fair Value Liability derivatives, net	-24	-78
Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	41,993	36,055
Total trading assets (excluding derivatives)	46,837	39,168
Securities available for sale	259,399	235,199
Mortgages held for sale	23,209	42,305
Loans held for sale	2	6
Loans	6,051	6,206
MSRs (carried at fair value)	14,501	11,538
Fair value asset derivatives, netting	-54,567	-62,108
Fair Value Asset derivatives, net	16,372	23,816
Other Assets, Excluding Derivatives	1,092	421
Total assets recorded at fair value	367,463	358,659
Liabilities:	'	'
Fair Value Liability Derivatives, netting	61,375	71,116
Fair Value Liability derivatives, net	-8,975	-11,942
Total short sale liabilities	-14,587	-10,365
Other Liabilities, Excluding Derivatives and Short Sale Liabilities	-41	-83
Total liabilities recorded at fair value	-23,603	-22,390
Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	55,984	71,351
Liabilities:	'	'
Total derivative liabilities	-55,314	-68,695
Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	3,041	3,456
Liabilities:	'	'
Total derivative liabilities	-2,937	-3,590
Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	5,436	3,783
Liabilities:	'	'
Total derivative liabilities	-5,638	-4,164
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	5,096	5,524
Liabilities:	'	'
Total derivative liabilities	-4,336	-3,579
Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	1,382	1,810
Liabilities:	'	'
Total derivative liabilities	-2,101	-2,952
Fair Value, Measurements, Recurring [Member] | Other Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	-24	-78
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	255,819	232,414
Trading Account Assets Other [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading assets (excluding derivatives)	4,844	3,113
US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	12,762	8,878
Securities available for sale	6,406	7,146
Liabilities:	'	'
Total short sale liabilities	-8,218	-5,100
US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	2,291	1,633
Securities available for sale	42,293	38,676
Liabilities:	'	'
Total short sale liabilities	-18	-9
Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	12,624	13,386
Securities available for sale	151,292	133,184
Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	118,963	97,285
Residential [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	13,524	15,931
Commercial [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	18,805	19,968
Collateralized loan and other debt obligations [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	760	742
Securities available for sale	17,776	13,188
Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	8,088	6,716
Securities available for sale	21,198	21,333
Liabilities:	'	'
Total short sale liabilities	-4,556	-3,941
Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	871	860
Securities available for sale	16,103	17,957
Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	5,191	5,928
Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	831	918
Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	10,081	11,111
Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	751	930
Short sale liabilities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Liabilities:	'	'
Total short sale liabilities	-42	-47
Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	4,597	3,840
Securities available for sale	3,580	2,785
Liabilities:	'	'
Total short sale liabilities	-1,753	-1,268
Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	1,898	2,176
Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	1,682	609
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	12,967	8,585
Total trading assets (excluding derivatives)	15,445	10,735
Securities available for sale	2,887	2,223
Mortgages held for sale	0	0
Loans held for sale	0	0
Loans	0	0
MSRs (carried at fair value)	0	0
Fair value asset derivatives, netting	0	0
Fair Value Asset derivatives, net	711	467
Other Assets, Excluding Derivatives	50	136
Total assets recorded at fair value	19,093	13,561
Liabilities:	'	'
Fair Value Liability Derivatives, netting	0	0
Fair Value Liability derivatives, net	-408	-274
Total short sale liabilities	-8,012	-5,458
Other Liabilities, Excluding Derivatives and Short Sale Liabilities	0	0
Total liabilities recorded at fair value	-8,420	-5,732
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	33	16
Liabilities:	'	'
Total derivative liabilities	-47	-52
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	648	432
Liabilities:	'	'
Total derivative liabilities	-332	-199
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	30	19
Liabilities:	'	'
Total derivative liabilities	-29	-23
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Level 1 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	679	1,040
Level 1 [Member] | Trading Account Assets Other [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading assets (excluding derivatives)	2,478	2,150
Level 1 [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	8,443	5,104
Securities available for sale	566	915
Liabilities:	'	'
Total short sale liabilities	-6,284	-4,225
Level 1 [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Liabilities:	'	'
Total short sale liabilities	0	0
Level 1 [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Level 1 [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Collateralized loan and other debt obligations [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Level 1 [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	113	125
Liabilities:	'	'
Total short sale liabilities	0	0
Level 1 [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	3	0
Securities available for sale	0	0
Level 1 [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 1 [Member] | Short sale liabilities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Liabilities:	'	'
Total short sale liabilities	0	0
Level 1 [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	4,521	3,481
Securities available for sale	2,208	1,183
Liabilities:	'	'
Total short sale liabilities	-1,728	-1,233
Level 1 [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	536	629
Level 1 [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	1,672	554
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	28,307	26,483
Total trading assets (excluding derivatives)	30,613	27,370
Securities available for sale	239,848	205,537
Mortgages held for sale	20,776	39,055
Loans held for sale	2	6
Loans	246	185
MSRs (carried at fair value)	0	0
Fair value asset derivatives, netting	0	0
Fair Value Asset derivatives, net	67,841	83,051
Other Assets, Excluding Derivatives	4	123
Total assets recorded at fair value	359,330	355,327
Liabilities:	'	'
Fair Value Liability Derivatives, netting	0	0
Fair Value Liability derivatives, net	-67,172	-79,729
Total short sale liabilities	-6,575	-4,907
Other Liabilities, Excluding Derivatives and Short Sale Liabilities	0	-34
Total liabilities recorded at fair value	-73,747	-84,670
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	55,363	70,277
Liabilities:	'	'
Total derivative liabilities	-54,933	-68,244
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	3,018	3,386
Liabilities:	'	'
Total derivative liabilities	-2,918	-3,541
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	3,580	2,747
Liabilities:	'	'
Total derivative liabilities	-4,173	-3,239
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	5,061	5,481
Liabilities:	'	'
Total derivative liabilities	-4,306	-3,553
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	819	1,160
Liabilities:	'	'
Total derivative liabilities	-842	-1,152
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Level 2 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	239,216	204,729
Level 2 [Member] | Trading Account Assets Other [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading assets (excluding derivatives)	2,306	887
Level 2 [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	4,319	3,774
Securities available for sale	5,840	6,231
Liabilities:	'	'
Total short sale liabilities	-1,934	-875
Level 2 [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	2,252	1,587
Securities available for sale	38,650	35,045
Liabilities:	'	'
Total short sale liabilities	-18	-9
Level 2 [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	12,623	13,380
Securities available for sale	151,016	132,887
Level 2 [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	118,963	97,285
Level 2 [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	13,436	15,837
Level 2 [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	18,617	19,765
Level 2 [Member] | Collateralized loan and other debt obligations [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	217	0
Securities available for sale	14,390	0
Level 2 [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	8,052	6,664
Securities available for sale	20,851	20,934
Liabilities:	'	'
Total short sale liabilities	-4,556	-3,941
Level 2 [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	768	722
Securities available for sale	7,718	8,702
Level 2 [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	17	7
Level 2 [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	831	867
Level 2 [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	6,870	7,828
Level 2 [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	751	930
Level 2 [Member] | Short sale liabilities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Liabilities:	'	'
Total short sale liabilities	-42	-47
Level 2 [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	76	356
Securities available for sale	632	808
Liabilities:	'	'
Total short sale liabilities	-25	-35
Level 2 [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	622	753
Level 2 [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	10	55
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	719	987
Total trading assets (excluding derivatives)	779	1,063
Securities available for sale	16,664	27,439
Mortgages held for sale	2,433	3,250
Loans held for sale	0	0
Loans	5,805	6,021
MSRs (carried at fair value)	14,501	11,538
Fair value asset derivatives, netting	0	0
Fair Value Asset derivatives, net	2,387	2,406
Other Assets, Excluding Derivatives	1,038	162
Total assets recorded at fair value	43,607	51,879
Liabilities:	'	'
Fair Value Liability Derivatives, netting	0	0
Fair Value Liability derivatives, net	-2,770	-3,055
Total short sale liabilities	0	0
Other Liabilities, Excluding Derivatives and Short Sale Liabilities	-41	-49
Total liabilities recorded at fair value	-2,811	-3,104
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	588	1,058
Liabilities:	'	'
Total derivative liabilities	-334	-399
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	23	70
Liabilities:	'	'
Total derivative liabilities	-19	-49
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	1,208	604
Liabilities:	'	'
Total derivative liabilities	-1,133	-726
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	5	24
Liabilities:	'	'
Total derivative liabilities	-1	-3
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	563	650
Liabilities:	'	'
Total derivative liabilities	-1,259	-1,800
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	-24	-78
Level 3 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	15,924	26,645
Level 3 [Member] | Trading Account Assets Other [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading assets (excluding derivatives)	60	76
Level 3 [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Liabilities:	'	'
Total short sale liabilities	0	0
Level 3 [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	39	46
Securities available for sale	3,643	3,631
Liabilities:	'	'
Total short sale liabilities	0	0
Level 3 [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	1	6
Securities available for sale	276	297
Level 3 [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 3 [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	88	94
Level 3 [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	188	203
Level 3 [Member] | Collateralized loan and other debt obligations [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	543	742
Securities available for sale	3,386	13,188
Level 3 [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	36	52
Securities available for sale	234	274
Liabilities:	'	'
Total short sale liabilities	0	0
Level 3 [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	100	138
Securities available for sale	8,385	9,255
Level 3 [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	5,174	5,921
Level 3 [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	51
Level 3 [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	3,211	3,283
Level 3 [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Level 3 [Member] | Short sale liabilities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Liabilities:	'	'
Total short sale liabilities	0	0
Level 3 [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	3
Securities available for sale	740	794
Liabilities:	'	'
Total short sale liabilities	0	0
Level 3 [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	740	794
Level 3 [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Total trading assets (excluding derivatives)	0	0
Securities available for sale	0	0
Mortgages held for sale	0	0
Loans held for sale	0	0
Loans	0	0
MSRs (carried at fair value)	0	0
Fair value asset derivatives, netting	-54,567	-62,108
Fair Value Asset derivatives, net	-54,567	-62,108
Other Assets, Excluding Derivatives	0	0
Total assets recorded at fair value	-54,567	-62,108
Liabilities:	'	'
Fair Value Liability Derivatives, netting	61,375	71,116
Fair Value Liability derivatives, net	61,375	71,116
Total short sale liabilities	0	0
Other Liabilities, Excluding Derivatives and Short Sale Liabilities	0	0
Total liabilities recorded at fair value	61,375	71,116
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]	'	'
Assets:	'	'
Fair Value Asset derivatives	0	0
Liabilities:	'	'
Total derivative liabilities	0	0
Netting [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Trading Account Assets Other [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading assets (excluding derivatives)	0	0
Netting [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Liabilities:	'	'
Total short sale liabilities	0	0
Netting [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Liabilities:	'	'
Total short sale liabilities	0	0
Netting [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Netting [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Collateralized loan and other debt obligations [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Netting [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Liabilities:	'	'
Total short sale liabilities	0	0
Netting [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Netting [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Short sale liabilities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Liabilities:	'	'
Total short sale liabilities	0	0
Netting [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Total trading securities	0	0
Securities available for sale	0	0
Liabilities:	'	'
Total short sale liabilities	0	0
Netting [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	0	0
Netting [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets:	'	'
Securities available for sale	$0	$0

Fair_Value_Transfers_Between_F

Fair Value, Transfers Between Fair Value Levels (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	$0	$0	$0	$0
Trading Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	0	0	0	0
Available for sale Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	0	0	0	0
Mortgages held for sale [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	0	0	0	0
Loans [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	0	0	0	0
Net derivative assets and liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	0	0	0	0
Short sale liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Total	0	0	0	0
Level 1 [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	-6	17	-6
Transfer Out	-1	0	-247	0
Level 1 [Member] | Trading Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	23	0	23
Transfer Out	-1	0	-247	0
Level 1 [Member] | Available for sale Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	0	17	0
Transfer Out	0	0	0	0
Level 1 [Member] | Mortgages held for sale [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	0	0	0
Transfer Out	0	0	0	0
Level 1 [Member] | Loans [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	0	0	0
Transfer Out	0	0	0	0
Level 1 [Member] | Net derivative assets and liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	0	0	0
Transfer Out	0	0	0	0
Level 1 [Member] | Short sale liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	-29	0	-29
Transfer Out	0	0	0	0
Level 2 [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	64	5,586	11,667	9,795
Transfer Out	-136	-5,988	-357	-6,222
Level 2 [Member] | Trading Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	15	6	483	16
Transfer Out	-14	-23	-40	-37
Level 2 [Member] | Available for sale Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	12	5,417	10,853	9,453
Transfer Out	-77	-16	-94	-73
Level 2 [Member] | Mortgages held for sale [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	177	79	316	229
Transfer Out	-77	-127	-255	-298
Level 2 [Member] | Loans [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	48	0	154	0
Transfer Out	0	-5,851	0	-5,851
Level 2 [Member] | Net derivative assets and liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	-188	84	-139	97
Transfer Out	32	0	32	8
Level 2 [Member] | Short sale liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	0	0	0
Transfer Out	0	29	0	29
Level 3 [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	137	5,994	341	6,228
Transfer Out	-64	-5,586	-11,421	-9,795
Level 3 [Member] | Trading Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	15	0	41	14
Transfer Out	-15	-6	-237	-16
Level 3 [Member] | Available for sale Securities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	77	16	77	73
Transfer Out	-12	-5,417	-10,853	-9,453
Level 3 [Member] | Mortgages held for sale [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	77	127	255	298
Transfer Out	-177	-79	-316	-229
Level 3 [Member] | Loans [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	5,851	0	5,851
Transfer Out	-48	0	-154	0
Level 3 [Member] | Net derivative assets and liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	-32	0	-32	-8
Transfer Out	188	-84	139	-97
Level 3 [Member] | Short sale liabilities [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis Transfers Between Fair Value Levels [Line Items]	'	'	'	'
Transfer In	0	0	0	0
Transfer Out	$0	$0	$0	$0

Fair_Value_Assets_and_Liabilit1

Fair Value, Assets and Liabilities Measured on Recurring Basis Level 3 Reconciliation (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Trading Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	$667	$1,662	$987	$2,034
Net gains (losses) included in net income	22	-204	93	-156
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	30	-55	-165	-479
Transfers into Level 3	15	0	41	14
Transfers out of Level 3	-15	-6	-237	-16
Balance, end of period	719	1,397	719	1,397
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	28	-235	6	-233
Trading Securities [Member] | US States and Political Subdivisions [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	40	58	46	53
Net gains (losses) included in net income	0	2	2	2
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-1	1	-9	6
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	39	61	39	61
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	0	0	-1	-1
Trading Securities [Member] | Mortgage Backed Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	9	93	6	108
Net gains (losses) included in net income	0	0	1	3
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	7	-59	9	-67
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	-15	10	-15	0
Balance, end of period	1	44	1	44
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	0	0	0	-2
Trading Securities [Member] | Collateralized loan and other debt obligations [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	495	1,273	742	1,582
Net gains (losses) included in net income	10	-224	74	-206
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	38	26	-71	-301
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	-202	0
Balance, end of period	543	1,075	543	1,075
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	7	-246	-6	-261
Trading Securities [Member] | Corporate debt securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	14	56	52	97
Net gains (losses) included in net income	2	0	4	-2
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	5	-14	-36	-53
Transfers into Level 3	15	0	16	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	36	42	36	42
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	1	-2	2	-4
Trading Securities [Member] | Total asset-backed securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	109	179	138	190
Net gains (losses) included in net income	10	18	12	46
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-19	-9	-55	-62
Transfers into Level 3	0	0	25	14
Transfers out of Level 3	0	-16	-20	-16
Balance, end of period	100	172	100	172
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	20	13	11	35
Trading Securities [Member] | Equity Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	0	3	3	4
Net gains (losses) included in net income	0	0	0	1
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	0	0	-3	-2
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	0	3	0	3
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	0	0	0	0
Trading assets (excluding derivatives) [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	730	1,753	1,063	2,149
Net gains (losses) included in net income	19	-213	77	-189
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	30	-55	-165	-479
Transfers into Level 3	15	0	41	14
Transfers out of Level 3	-15	-6	-237	-16
Balance, end of period	779	1,479	779	1,479
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	27	-242	1	-251
Trading assets (excluding derivatives) [Member] | Trading Account Assets Other [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	63	91	76	115
Net gains (losses) included in net income	-3	-9	-16	-33
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	0	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	60	82	60	82
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	-1	-7	-5	-18
Mortgages held for sale [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	2,641	3,328	3,250	3,410
Net gains (losses) included in net income	4	38	31	4
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-112	-107	-787	-176
Transfers into Level 3	77	127	255	298
Transfers out of Level 3	-177	-79	-316	-229
Balance, end of period	2,433	3,307	2,433	3,307
Net unrealized gains (losses) included in mortgage banking and other noninterest income in the income statement related to assets held at period end	5	37	-51	16
Loans Receivable [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	5,860	24	6,021	23
Net gains (losses) included in net income	-17	59	-171	59
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	10	79	109	80
Transfers into Level 3	0	5,851	0	5,851
Transfers out of Level 3	-48	0	-154	0
Balance, end of period	5,805	6,013	5,805	6,013
Net unrealized gains (losses) included in mortgage banking and other noninterest income in the income statement related to assets held at period end	-13	59	-147	59
Mortgage servicing rights [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	14,185	12,081	11,538	12,603
Net gains (losses) included in net income	-638	-2,298	598	-5,442
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	954	1,173	2,365	3,795
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	14,501	10,956	14,501	10,956
Net unrealized gains (losses) included in mortgage banking and other noninterest income in the income statement related to assets held at period end	-213	-1,427	2,415	-3,216
Derivatives [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	-1,410	-1,121	-649	-1,588
Net gains (losses) included in net income	245	2,971	-786	6,760
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	626	-1,987	945	-5,288
Transfers into Level 3	-32	0	-32	-8
Transfers out of Level 3	188	-84	139	-97
Balance, end of period	-383	-221	-383	-221
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	266	1,289	93	1,376
Derivatives [Member] | Interest Rate Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	-561	906	659	609
Net gains (losses) included in net income	224	2,879	-759	6,565
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	591	-2,392	354	-5,781
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	254	1,393	254	1,393
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	220	1,248	104	1,292
Derivatives [Member] | Commodity Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	-12	4	21	0
Net gains (losses) included in net income	-4	48	3	71
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-24	-21	-55	-32
Transfers into Level 3	-1	0	-1	-8
Transfers out of Level 3	45	-3	36	-3
Balance, end of period	4	28	4	28
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	10	21	1	36
Derivatives [Member] | Equity Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	27	-269	-122	-75
Net gains (losses) included in net income	-13	25	-42	-19
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-50	133	168	-4
Transfers into Level 3	-32	0	-32	0
Transfers out of Level 3	143	-81	103	-94
Balance, end of period	75	-192	75	-192
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	-7	1	-26	-18
Derivatives [Member] | Foreign Exchange Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	-29	1	21	-7
Net gains (losses) included in net income	32	19	-22	21
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	0	2	4	8
Transfers into Level 3	1	0	1	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	4	22	4	22
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	32	21	-14	29
Derivatives [Member] | Credit Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	-799	-1,657	-1,150	-1,998
Net gains (losses) included in net income	-7	-15	-20	96
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	110	291	474	521
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	-696	-1,381	-696	-1,381
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	11	-2	28	37
Derivatives [Member] | Other Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Balance, beginning of period	-36	-106	-78	-117
Net gains (losses) included in net income	13	15	54	26
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-1	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	-24	-91	-24	-91
Net unrealized gains (losses) included in mortgage banking, trading activities and other noninterest income in the income statement related to assets and liabilities held at period end	0	0	0	0
Other Assets [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	731	225	162	244
Net gains (losses) included in net income	52	-10	88	-6
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	255	-22	788	-45
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	1,038	193	1,038	193
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to assets held at period end	-2	-8	-5	-11
Short sale liabilities [Member]	'	'	'	'
Liabilities:	'	'	'	'
Balance, beginning of period	0	-9	0	0
Net gains (losses) included in net income	0	0	0	0
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	0	9	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	0	0	0	0
Net unrealized gains (losses) included in trading activities and other noninterest income in the income statement related to liabilities held at period end	0	0	0	0
Other Liabilities Excluding Derivatives And Short Sale Liabilities [Member]	'	'	'	'
Liabilities:	'	'	'	'
Balance, beginning of period	-43	-245	-49	-44
Net gains (losses) included in net income	12	-17	18	-19
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	-10	9	-10	-190
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	-41	-253	-41	-253
Net unrealized gains (losses) included in mortgage banking and other noninterest income in the income statement related to liabilities held at period end	1	0	5	0
Available for sale Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	16,129	29,608	27,439	31,856
Net gains (losses) included in net income	15	64	39	207
Net gains (losses) included in other comprehensive income	-1	227	39	669
Purchases, sales, issuances and settlements, net	456	-303	-77	843
Transfers into Level 3	77	16	77	73
Transfers out of Level 3	-12	-5,417	-10,853	-9,453
Balance, end of period	16,664	24,195	16,664	24,195
Net unrealized gains (losses) included in debt securities available for sale and equity investments in the income statement related to assets held at period end	-2	-9	-12	-32
Available for sale Securities [Member] | Debt Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	15,341	28,679	26,645	30,489
Net gains (losses) included in net income	12	49	33	120
Net gains (losses) included in other comprehensive income	35	231	52	712
Purchases, sales, issuances and settlements, net	471	-212	-30	1,405
Transfers into Level 3	77	16	77	73
Transfers out of Level 3	-12	-5,417	-10,853	-9,453
Balance, end of period	15,924	23,346	15,924	23,346
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	-2	-9	-12	-32
Available for sale Securities [Member] | US States and Political Subdivisions [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	3,759	9,505	3,631	11,516
Net gains (losses) included in net income	3	13	7	8
Net gains (losses) included in other comprehensive income	1	-6	-66	188
Purchases, sales, issuances and settlements, net	-162	-136	194	1,565
Transfers into Level 3	53	14	53	14
Transfers out of Level 3	-11	-5,178	-176	-9,079
Balance, end of period	3,643	4,212	3,643	4,212
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	0	0	0
Available for sale Securities [Member] | Mortgage Backed Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	292	204	297	293
Net gains (losses) included in net income	6	-3	-4	-6
Net gains (losses) included in other comprehensive income	1	-2	29	30
Purchases, sales, issuances and settlements, net	-22	-5	-33	-90
Transfers into Level 3	0	0	0	28
Transfers out of Level 3	-1	-13	-13	-74
Balance, end of period	276	181	276	181
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	-2	-3	-5	-2
Available for sale Securities [Member] | Residential [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	98	15	94	61
Net gains (losses) included in net income	8	0	5	11
Net gains (losses) included in other comprehensive income	-2	0	9	11
Purchases, sales, issuances and settlements, net	-16	0	-19	-35
Transfers into Level 3	0	0	0	28
Transfers out of Level 3	0	-13	-1	-74
Balance, end of period	88	2	88	2
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	0	0	-1
Available for sale Securities [Member] | Commercial [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	194	189	203	232
Net gains (losses) included in net income	-2	-3	-9	-17
Net gains (losses) included in other comprehensive income	3	-2	20	19
Purchases, sales, issuances and settlements, net	-6	-5	-14	-55
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	-1	0	-12	0
Balance, end of period	188	179	188	179
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	-2	-3	-5	-1
Available for sale Securities [Member] | Collateralized loan and other debt obligations [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	3,227	9,147	13,188	8,599
Net gains (losses) included in net income	-2	27	-6	112
Net gains (losses) included in other comprehensive income	16	210	107	387
Purchases, sales, issuances and settlements, net	145	841	710	1,127
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	-10,613	0
Balance, end of period	3,386	10,225	3,386	10,225
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	0	0	0
Available for sale Securities [Member] | Corporate debt securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	243	286	274	295
Net gains (losses) included in net income	2	14	6	17
Net gains (losses) included in other comprehensive income	-9	0	-18	-5
Purchases, sales, issuances and settlements, net	-2	-38	-25	-46
Transfers into Level 3	0	0	0	1
Transfers out of Level 3	0	-41	-3	-41
Balance, end of period	234	221	234	221
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	0	0	0
Available for sale Securities [Member] | Total asset-backed securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	7,820	9,537	9,255	9,786
Net gains (losses) included in net income	3	-2	30	-11
Net gains (losses) included in other comprehensive income	26	29	0	112
Purchases, sales, issuances and settlements, net	512	-874	-876	-1,151
Transfers into Level 3	24	2	24	30
Transfers out of Level 3	0	-185	-48	-259
Balance, end of period	8,385	8,507	8,385	8,507
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	-6	-7	-30
Available for sale Securities [Member] | Auto loans and leases [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	4,872	6,206	5,921	6,641
Net gains (losses) included in net income	1	0	1	3
Net gains (losses) included in other comprehensive income	-3	-2	-28	5
Purchases, sales, issuances and settlements, net	304	-717	-720	-1,162
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	5,174	5,487	5,174	5,487
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	0	0	0
Available for sale Securities [Member] | Home Equity Loans [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	0	257	51	282
Net gains (losses) included in net income	0	3	3	14
Net gains (losses) included in other comprehensive income	0	-3	-1	11
Purchases, sales, issuances and settlements, net	0	0	-5	-3
Transfers into Level 3	0	2	0	29
Transfers out of Level 3	0	-162	-48	-236
Balance, end of period	0	97	0	97
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	0	0	-4
Available for sale Securities [Member] | Other asset-backed securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	2,948	3,074	3,283	2,863
Net gains (losses) included in net income	2	-5	26	-28
Net gains (losses) included in other comprehensive income	29	34	29	96
Purchases, sales, issuances and settlements, net	208	-157	-151	14
Transfers into Level 3	24	0	24	1
Transfers out of Level 3	0	-23	0	-23
Balance, end of period	3,211	2,923	3,211	2,923
Net unrealized gains (losses) included in debt securities available for sale in the income statement related to assets held at period end	0	-6	-7	-26
Available for sale Securities [Member] | Equity Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	788	929	794	1,367
Net gains (losses) included in net income	3	15	6	87
Net gains (losses) included in other comprehensive income	-36	-4	-13	-43
Purchases, sales, issuances and settlements, net	-15	-91	-47	-562
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	740	849	740	849
Net unrealized gains (losses) included in equity investments in the income statement related to assets held at period end	0	0	0	0
Available for sale Securities [Member] | Perpetual preferred securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	788	927	794	1,344
Net gains (losses) included in net income	3	14	6	85
Net gains (losses) included in other comprehensive income	-36	-4	-13	-28
Purchases, sales, issuances and settlements, net	-15	-88	-47	-552
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	740	849	740	849
Net unrealized gains (losses) included in equity investments in the income statement related to assets held at period end	0	0	0	0
Available for sale Securities [Member] | Other equity securities [Member]	'	'	'	'
Assets:	'	'	'	'
Balance, beginning of period	0	2	0	23
Net gains (losses) included in net income	0	1	0	2
Net gains (losses) included in other comprehensive income	0	0	0	-15
Purchases, sales, issuances and settlements, net	0	-3	0	-10
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	0	0	0	0
Net unrealized gains (losses) included in equity investments in the income statement related to assets held at period end	$0	$0	$0	$0

Fair_Value_Assets_and_Liabilit2

Fair Value, Assets and Liabilities Measured on Recurring Basis Level 3 Reconciliation Breakout (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Trading Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	$606	$282	$1,330	$1,015
Sales	-565	-325	-1,460	-1,458
Issuances	0	0	0	0
Settlements	-11	-12	-35	-36
Purchases, sales, issuances and settlements, net	30	-55	-165	-479
Trading Securities [Member] | US States and Political Subdivisions [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	2	5	125	73
Sales	-3	-4	-134	-67
Issuances	0	0	0	0
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	-1	1	-9	6
Trading Securities [Member] | Mortgage Backed Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	425	0	429	44
Sales	-418	-59	-420	-111
Issuances	0	0	0	0
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	7	-59	9	-67
Trading Securities [Member] | Collateralized loan and other debt obligations [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	172	271	691	642
Sales	-135	-245	-760	-943
Issuances	0	0	0	0
Settlements	1	0	-2	0
Purchases, sales, issuances and settlements, net	38	26	-71	-301
Trading Securities [Member] | Corporate debt securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	5	0	71	151
Sales	0	-14	-107	-204
Issuances	0	0	0	0
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	5	-14	-36	-53
Trading Securities [Member] | Total asset-backed securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	2	6	14	104
Sales	-9	-3	-36	-130
Issuances	0	0	0	0
Settlements	-12	-12	-33	-36
Purchases, sales, issuances and settlements, net	-19	-9	-55	-62
Trading Securities [Member] | Equity Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	1
Sales	0	0	-3	-3
Issuances	0	0	0	0
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	0	0	-3	-2
Trading assets (excluding derivatives) [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	606	282	1,330	1,015
Sales	-565	-325	-1,460	-1,458
Issuances	0	0	0	0
Settlements	-11	-12	-35	-36
Purchases, sales, issuances and settlements, net	30	-55	-165	-479
Trading assets (excluding derivatives) [Member] | Trading Account Assets Other [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	0	0	0	0
Mortgages held for sale [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	55	100	258	355
Sales	0	0	-572	0
Issuances	0	0	0	0
Settlements	-167	-207	-473	-531
Purchases, sales, issuances and settlements, net	-112	-107	-787	-176
Loans Receivable [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	1	0	23	2
Sales	0	0	0	0
Issuances	112	129	344	129
Settlements	-103	-50	-258	-51
Purchases, sales, issuances and settlements, net	10	79	109	80
Mortgage servicing rights [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	1	0	-583	-293
Issuances	953	1,173	2,948	4,088
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	954	1,173	2,365	3,795
Derivatives [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	-271	63	5	162
Sales	120	19	-83	-161
Issuances	0	1	0	1
Settlements	777	-2,070	1,023	-5,290
Purchases, sales, issuances and settlements, net	626	-1,987	945	-5,288
Derivatives [Member] | Interest Rate Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	0	28	0	28
Sales	-9	-22	0	-22
Issuances	0	0	0	0
Settlements	600	-2,398	354	-5,787
Purchases, sales, issuances and settlements, net	591	-2,392	354	-5,781
Derivatives [Member] | Commodity Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	-2	22	0	22
Sales	2	-8	0	-8
Issuances	0	0	0	0
Settlements	-24	-35	-55	-46
Purchases, sales, issuances and settlements, net	-24	-21	-55	-32
Derivatives [Member] | Equity Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	-269	13	0	117
Sales	130	49	-79	-133
Issuances	0	1	0	1
Settlements	89	70	247	11
Purchases, sales, issuances and settlements, net	-50	133	168	-4
Derivatives [Member] | Foreign Exchange Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	2	4	8
Purchases, sales, issuances and settlements, net	0	2	4	8
Derivatives [Member] | Credit Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	0	0	5	-5
Sales	-3	0	-4	2
Issuances	0	0	0	0
Settlements	113	291	473	524
Purchases, sales, issuances and settlements, net	110	291	474	521
Derivatives [Member] | Other Contract [Member]	'	'	'	'
Assets and Liabilities:	'	'	'	'
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	-1	0	0	0
Purchases, sales, issuances and settlements, net	-1	0	0	0
Other Assets [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	263	0	820	17
Sales	-1	-5	-2	-5
Issuances	0	0	0	0
Settlements	-7	-17	-30	-57
Purchases, sales, issuances and settlements, net	255	-22	788	-45
Short sale liabilities [Member]	'	'	'	'
Liabilities:	'	'	'	'
Purchases	0	9	8	9
Sales	0	0	-8	-9
Issuances	0	0	0	0
Settlements	0	0	0	0
Purchases, sales, issuances and settlements, net	0	9	0	0
Other Liabilities Excluding Derivatives And Short Sale Liabilities [Member]	'	'	'	'
Liabilities:	'	'	'	'
Purchases	0	-2	0	-3
Sales	0	1	0	11
Issuances	0	-8	-4	-216
Settlements	-10	18	6	18
Purchases, sales, issuances and settlements, net	-10	9	-10	-190
Available for sale Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	1,462	1,481	3,109	7,209
Sales	-16	-113	-159	-435
Issuances	703	515	2,320	2,485
Settlements	-1,693	-2,186	-5,347	-8,416
Purchases, sales, issuances and settlements, net	456	-303	-77	843
Available for sale Securities [Member] | Debt Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	1,462	1,481	3,109	7,209
Sales	-16	-110	-139	-427
Issuances	703	515	2,320	2,485
Settlements	-1,678	-2,098	-5,320	-7,862
Purchases, sales, issuances and settlements, net	471	-212	-30	1,405
Available for sale Securities [Member] | US States and Political Subdivisions [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	199	0	1,759
Sales	-1	-35	-68	-37
Issuances	21	65	726	965
Settlements	-182	-365	-464	-1,122
Purchases, sales, issuances and settlements, net	-162	-136	194	1,565
Available for sale Securities [Member] | Mortgage Backed Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	11
Sales	-15	0	-16	-34
Issuances	0	0	0	0
Settlements	-7	-5	-17	-67
Purchases, sales, issuances and settlements, net	-22	-5	-33	-90
Available for sale Securities [Member] | Residential [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	1
Sales	-16	0	-16	-34
Issuances	0	0	0	0
Settlements	0	0	-3	-2
Purchases, sales, issuances and settlements, net	-16	0	-19	-35
Available for sale Securities [Member] | Commercial [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	10
Sales	1	0	0	0
Issuances	0	0	0	0
Settlements	-7	-5	-14	-65
Purchases, sales, issuances and settlements, net	-6	-5	-14	-55
Available for sale Securities [Member] | Collateralized loan and other debt obligations [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	216	1,188	989	2,403
Sales	0	0	-14	-185
Issuances	0	0	0	0
Settlements	-71	-347	-265	-1,091
Purchases, sales, issuances and settlements, net	145	841	710	1,127
Available for sale Securities [Member] | Corporate debt securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	0	-37	0	-37
Issuances	0	0	0	0
Settlements	-2	-1	-25	-9
Purchases, sales, issuances and settlements, net	-2	-38	-25	-46
Available for sale Securities [Member] | Total asset-backed securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	1,246	94	2,120	3,036
Sales	0	-38	-41	-134
Issuances	682	450	1,594	1,520
Settlements	-1,416	-1,380	-4,549	-5,573
Purchases, sales, issuances and settlements, net	512	-874	-876	-1,151
Available for sale Securities [Member] | Auto loans and leases [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	750	0	1,102	2,040
Sales	0	0	0	0
Issuances	509	180	813	490
Settlements	-955	-897	-2,635	-3,692
Purchases, sales, issuances and settlements, net	304	-717	-720	-1,162
Available for sale Securities [Member] | Home Equity Loans [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	0	0	-5	-2
Issuances	0	0	0	0
Settlements	0	0	0	-1
Purchases, sales, issuances and settlements, net	0	0	-5	-3
Available for sale Securities [Member] | Other asset-backed securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	496	94	1,018	996
Sales	0	-38	-36	-132
Issuances	173	270	781	1,030
Settlements	-461	-483	-1,914	-1,880
Purchases, sales, issuances and settlements, net	208	-157	-151	14
Available for sale Securities [Member] | Equity Securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	0	-3	-20	-8
Issuances	0	0	0	0
Settlements	-15	-88	-27	-554
Purchases, sales, issuances and settlements, net	-15	-91	-47	-562
Available for sale Securities [Member] | Perpetual preferred securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	0	0	-20	0
Issuances	0	0	0	0
Settlements	-15	-88	-27	-552
Purchases, sales, issuances and settlements, net	-15	-88	-47	-552
Available for sale Securities [Member] | Other equity securities [Member]	'	'	'	'
Assets:	'	'	'	'
Purchases	0	0	0	0
Sales	0	-3	0	-8
Issuances	0	0	0	0
Settlements	0	0	0	-2
Purchases, sales, issuances and settlements, net	$0	($3)	$0	($10)

Fair_Value_Assets_and_Liabilit3

Fair Value, Assets and Liabilities Measured on a Recurring Basis Level 3 Valuation Techniques and Significant Unobservable Inputs (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale, carried at fair value	23,209,000,000	42,305,000,000
Loans	6,051,000,000	6,206,000,000
MSRs (carried at fair value)	14,501,000,000	11,538,000,000
Interest Rate Contract [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Prepayment rate	11.00%	7.40%
Loss severity	40.90%	45.80%
Default rate	0.20%	0.00%
Interest Rate Contract [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Prepayment rate	15.60%	15.60%
Loss severity	50.00%	83.20%
Default rate	15.50%	20.00%
Interest Rate Contract [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Prepayment rate	15.60%	14.90%
Loss severity	50.00%	51.60%
Default rate	5.00%	5.40%
Derivative Loan Commitments [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Fall-out factor	1.00%	1.00%
Initial-value servicing (in bps)	-6.8	-13.7
Derivative Loan Commitments [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Fall-out factor	99.00%	99.00%
Initial-value servicing (in bps)	82.8	137.2
Derivative Loan Commitments [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Fall-out factor	27.60%	22.90%
Initial-value servicing (in bps)	41.5	85.6
Equity Contract [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Weighted average life	'0 years 5 months 30 days	'
Conversion factor	-20.20%	'
Equity Contract [Member] | Minimum [Member] | Option model [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Volatility factor	10.90%	3.00%
Correlation factor	0.00%	-43.60%
Equity Contract [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Weighted average life	'3 years 5 months 30 days	'
Conversion factor	0.00%	'
Equity Contract [Member] | Maximum [Member] | Option model [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Volatility factor	68.20%	68.90%
Correlation factor	88.00%	94.50%
Equity Contract [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Weighted average life	'1 year 7 months 6 days	'
Conversion factor	-17.60%	'
Equity Contract [Member] | Weighted Average [Member] | Option model [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Volatility factor	23.20%	26.50%
Correlation factor	75.70%	50.30%
Credit Contract [Member] | Minimum [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	-30.70%	-34.40%
Credit Contract [Member] | Minimum [Member] | Option model [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Loss severity	16.50%	16.50%
Credit spread	0.10%	0.10%
Credit Contract [Member] | Maximum [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	34.50%	30.50%
Credit Contract [Member] | Maximum [Member] | Option model [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Loss severity	87.50%	87.50%
Credit spread	15.20%	14.00%
Credit Contract [Member] | Weighted Average [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	0.40%	0.10%
Credit Contract [Member] | Weighted Average [Member] | Option model [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Loss severity	43.90%	52.30%
Credit spread	1.10%	2.00%
Government, healthcare and other revenue bonds [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.40%	0.50%
Government, healthcare and other revenue bonds [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	6.10%	4.80%
Government, healthcare and other revenue bonds [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	1.40%	1.80%
Auction rate and other municipal bonds [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.40%	2.00%
Weighted average life	'1 year 9 months 18 days	'3 years
Auction rate and other municipal bonds [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	11.80%	12.90%
Weighted average life	'6 years 7 months 5 days	'7 years 6 months 7 days
Auction rate and other municipal bonds [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	4.40%	4.40%
Weighted average life	'4 years 8 months 10 days	'3 years 4 months 28 days
Collateralized loan and other debt obligations [Member] | Minimum [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	-18.00%	-22.50%
Collateralized loan and other debt obligations [Member] | Maximum [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	21.70%	24.70%
Collateralized loan and other debt obligations [Member] | Weighted Average [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	2.50%	3.50%
Auto loans and leases [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.50%	0.60%
Prepayment rate	0.60%	0.60%
Loss severity	50.00%	50.00%
Default rate	1.90%	2.10%
Auto loans and leases [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	2.00%	1.60%
Prepayment rate	1.40%	0.90%
Loss severity	66.00%	66.60%
Default rate	8.50%	9.70%
Auto loans and leases [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.80%	1.00%
Prepayment rate	0.80%	0.70%
Loss severity	52.90%	51.80%
Default rate	3.10%	3.20%
Dealer Floorplan [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.70%	0.50%
Dealer Floorplan [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	1.60%	2.20%
Dealer Floorplan [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.90%	1.90%
Diversified Payment Rights [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	1.80%	1.00%
Diversified Payment Rights [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	3.20%	2.90%
Diversified Payment Rights [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	2.40%	1.80%
Other Commercial and Consumer [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	0.10%	0.60%
Weighted average life	'0 years 9 months 18 days	'1 year
Other Commercial and Consumer [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	21.10%	6.80%
Weighted average life	'6 years 10 months 22 days	'7 years 6 months 7 days
Other Commercial and Consumer [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	2.80%	2.70%
Weighted average life	'2 years 5 months 30 days	'2 years 10 months 26 days
Perpetual preferred securities [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	4.80%	4.30%
Weighted average life	'1 year	'1 year
Perpetual preferred securities [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	7.90%	9.30%
Weighted average life	'15 years	'7 years
Perpetual preferred securities [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	7.00%	6.30%
Weighted average life	'11 years 11 months 28 days	'5 years 3 months 22 days
Mortgages held for sale [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	3.60%	3.40%
Prepayment rate	2.00%	1.00%
Loss severity	1.30%	1.30%
Default rate	0.60%	0.60%
Mortgages held for sale [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	7.90%	7.50%
Prepayment rate	9.70%	11.00%
Loss severity	33.30%	35.30%
Default rate	14.40%	14.80%
Mortgages held for sale [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	5.50%	5.40%
Prepayment rate	5.50%	6.20%
Loss severity	21.60%	26.40%
Default rate	3.00%	5.50%
Loans Receivable [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	2.40%	2.40%
Prepayment rate	3.10%	1.60%
Utilization rate	0.00%	0.00%
Loans Receivable [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	3.60%	2.80%
Prepayment rate	39.30%	44.40%
Utilization rate	2.00%	2.00%
Loans Receivable [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	3.10%	2.60%
Prepayment rate	12.20%	11.60%
Utilization rate	0.80%	0.80%
Residential Mortgage Servicing [Member] | Minimum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	5.60%	6.70%
Prepayment rate	6.80%	7.30%
Cost to service per loan	87	90
Residential Mortgage Servicing [Member] | Maximum [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	11.10%	10.90%
Prepayment rate	20.00%	23.70%
Cost to service per loan	826	854
Residential Mortgage Servicing [Member] | Weighted Average [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	7.60%	7.40%
Prepayment rate	11.70%	15.70%
Cost to service per loan	198	219
Other assets: nonmarketable equity investments [Member] | Minimum [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	-30.00%	'
Other assets: nonmarketable equity investments [Member] | Maximum [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	-4.00%	'
Other assets: nonmarketable equity investments [Member] | Weighted Average [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Comparability adjustment	-24.80%	'
Recurring [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale, carried at fair value	23,209,000,000	42,305,000,000
Loans	6,051,000,000	6,206,000,000
MSRs (carried at fair value)	14,501,000,000	11,538,000,000
Level 3 [Member] | Recurring [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale, carried at fair value	2,433,000,000	3,250,000,000
Loans	5,805,000,000	6,021,000,000
MSRs (carried at fair value)	14,501,000,000	11,538,000,000
Total insignificant level 3 assets, net of liabilities	677,000,000	835,000,000
Total level 3 assets, net of liabilities	40,796,000,000	48,775,000,000
Level 3 [Member] | Recurring [Member] | Interest Rate Contract [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Net derivative assets and liabilities	35,000,000	162,000,000
Level 3 [Member] | Recurring [Member] | Derivative Loan Commitments [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Net derivative assets and liabilities	219,000,000	497,000,000
Level 3 [Member] | Recurring [Member] | Equity Contract [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Net derivative assets and liabilities	199,000,000	'
Level 3 [Member] | Recurring [Member] | Equity Contract [Member] | Option model [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Net derivative assets and liabilities	-124,000,000	-122,000,000
Level 3 [Member] | Recurring [Member] | Credit Contract [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Net derivative assets and liabilities	-700,000,000	-1,157,000,000
Level 3 [Member] | Recurring [Member] | Credit Contract [Member] | Option model [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Net derivative assets and liabilities	4,000,000	8,000,000
Level 3 [Member] | Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	3,117,000,000	3,081,000,000
Level 3 [Member] | Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Vendor priced [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	63,000,000	'
Level 3 [Member] | Recurring [Member] | Auction rate and other municipal bonds [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	502,000,000	596,000,000
Level 3 [Member] | Recurring [Member] | Collateralized loan and other debt obligations [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	904,000,000	1,423,000,000
Level 3 [Member] | Recurring [Member] | Collateralized loan and other debt obligations [Member] | Vendor priced [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	3,025,000,000	12,507,000,000
Level 3 [Member] | Recurring [Member] | Auto loans and leases [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	5,174,000,000	5,921,000,000
Level 3 [Member] | Recurring [Member] | Dealer Floorplan [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	1,782,000,000	1,030,000,000
Level 3 [Member] | Recurring [Member] | Diversified Payment Rights [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	654,000,000	639,000,000
Level 3 [Member] | Recurring [Member] | Other Commercial and Consumer [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	782,000,000	1,665,000,000
Level 3 [Member] | Recurring [Member] | Other Commercial and Consumer [Member] | Vendor priced [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	93,000,000	87,000,000
Level 3 [Member] | Recurring [Member] | Perpetual preferred securities [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Trading and available for sale securities	740,000,000	794,000,000
Level 3 [Member] | Recurring [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale, carried at fair value	2,433,000,000	3,250,000,000
Level 3 [Member] | Recurring [Member] | Loans Receivable [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Loans	5,805,000,000	6,021,000,000
Level 3 [Member] | Recurring [Member] | Residential Mortgage Servicing [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
MSRs (carried at fair value)	14,501,000,000	11,538,000,000
Level 3 [Member] | Recurring [Member] | Other assets: nonmarketable equity investments [Member] | Market comparable pricing [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Other assets: nonmarketable equity investments	911,000,000	'

Fair_Value_Assets_Recorded_at_

Fair Value, Assets Recorded at Fair Value on Nonrecurring Basis (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgages held for sale	$23,209	$42,305
Loans held for sale	2	6
Loans	6,051	6,206
MSRs (carried at fair value)	14,501	11,538
Other assets	911	0
Nonrecurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgages held for sale	1,643	2,554
Loans held for sale	39	4
Loans	3,961	7,400
Other assets	517	1,133
Nonrecurring [Member] | Commercial Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	437	1,507
Nonrecurring [Member] | Consumer Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	3,524	5,893
Level 1 [Member] | Nonrecurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgages held for sale	0	0
Loans held for sale	0	0
Loans	0	0
Other assets	0	0
Level 1 [Member] | Nonrecurring [Member] | Commercial Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	0	0
Level 1 [Member] | Nonrecurring [Member] | Consumer Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	0	0
Level 2 [Member] | Nonrecurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgages held for sale	721	1,509
Loans held for sale	39	4
Loans	3,947	7,396
Other assets	402	989
Level 2 [Member] | Nonrecurring [Member] | Commercial Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	430	1,507
Level 2 [Member] | Nonrecurring [Member] | Consumer Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	3,517	5,889
Level 3 [Member] | Nonrecurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgages held for sale	922	1,045
Loans held for sale	0	0
Loans	14	4
Other assets	115	144
Level 3 [Member] | Nonrecurring [Member] | Commercial Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	7	0
Level 3 [Member] | Nonrecurring [Member] | Consumer Portfolio Segment [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans	$7	$4

Fair_Value_Changes_in_Fair_Val

Fair Value, Changes in Fair Value of Assets Recorded at Fair Value on Nonrecurring Basis (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Fair Value Assets Measured On Nonrecurring Basis Increase Decrease [Line Items]	'	'
Mortgages held for sale	($13)	$45
Loans held for sale	-1	1
Loans	-1,959	-3,601
Other Assets	-191	-320
Total	-2,164	-3,875
Commercial Portfolio Segment [Member]	'	'
Fair Value Assets Measured On Nonrecurring Basis Increase Decrease [Line Items]	'	'
Loans	-156	-788
Consumer Portfolio Segment [Member]	'	'
Fair Value Assets Measured On Nonrecurring Basis Increase Decrease [Line Items]	'	'
Loans	($1,803)	($2,813)

Fair_Value_Assets_Recorded_at_1

Fair Value, Assets Recorded at Fair Value on a Nonrecurring Basis Level 3 Valuation Techniques and Significant Unobservable Inputs (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale	23,209	42,305
Minimum [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	3.60%	3.40%
Loss severity	1.30%	1.30%
Default rate	0.60%	0.60%
Prepayment rate	2.00%	1.00%
Minimum [Member] | Residential Portfolio Segment [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	4.30%	4.10%
Loss severity	1.90%	2.00%
Default rate	1.20%	2.90%
Prepayment rate	2.00%	1.00%
Maximum [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	7.90%	7.50%
Loss severity	33.30%	35.30%
Default rate	14.40%	14.80%
Prepayment rate	9.70%	11.00%
Maximum [Member] | Residential Portfolio Segment [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	12.10%	11.90%
Loss severity	47.50%	45.00%
Default rate	5.60%	21.20%
Prepayment rate	100.00%	100.00%
Weighted Average [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	5.50%	5.40%
Loss severity	21.60%	26.40%
Default rate	3.00%	5.50%
Prepayment rate	5.50%	6.20%
Weighted Average [Member] | Residential Portfolio Segment [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs [Abstract]	'	'
Discount rate	11.10%	10.90%
Loss severity	5.20%	6.00%
Default rate	2.70%	7.90%
Prepayment rate	67.10%	66.70%
Nonrecurring [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale	1,643	2,554
Level 3 [Member] | Nonrecurring [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale	922	1,045
Total insignificant level 3 assets	129	148
Total	1,051	1,193
Level 3 [Member] | Nonrecurring [Member] | Residential Portfolio Segment [Member] | Mortgages held for sale [Member] | Discounted cash flow [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Mortgages held for sale	922	1,045

Fair_Value_Investments_in_Enti

Fair Value, Investments in Entities That Calculate Net Asset Value Per Share (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]	'	'
Fair value	$1,211	$1,271
Unfunded commitments	186	216
Offshore Funds [Member]	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]	'	'
Fair value	391	379
Unfunded commitments	0	0
Redemption frequency	'Daily - Quarterly	'Daily - Annually
Redemption notice period	'1 - 180 days	'1 - 180 days
Funds of funds [Member]	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]	'	'
Fair value	0	1
Unfunded commitments	0	0
Redemption frequency	'N/A	'Quarterly
Redemption notice period	'N/A	'90 days
Hedge Funds [Member]	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]	'	'
Fair value	3	2
Unfunded commitments	0	0
Redemption frequency	'Monthly - Semi Annually	'Daily - Annually
Redemption notice period	'5 - 95 days	'5 - 95 days
Private Equity Funds [Member]	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]	'	'
Fair value	740	807
Unfunded commitments	170	195
Redemption frequency	'N/A	'N/A
Redemption notice period	'N/A	'N/A
Venture Capital Funds [Member]	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]	'	'
Fair value	77	82
Unfunded commitments	$16	$21
Redemption frequency	'N/A	'N/A
Redemption notice period	'N/A	'N/A

Fair_Value_Option_Carrying_Amo

Fair Value, Option, Carrying Amount (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Mortgages held for sale	$23,209	$42,305
Loans held for sale	2	6
Loans	6,051	6,206
Other assets	911	0
Long-term debt	0	-1
Mortgages held for sale [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Mortgages held for sale	23,209	42,305
Mortgages held for sale, Unpaid principal	22,836	41,183
Loans, Loans held for sale and Mortgages held for sale, aggregate difference	373	1,122
Nonaccrual loans	264	309
Nonaccrual loans, Unpaid principal	460	655
Nonaccrual loans, Aggregate difference	-196	-346
Loans 90 days or more past due and still accruing	36	49
Loans 90 days or more past due and still accruing, Unpaid principal	43	64
Loans 90 days or more past due and still accruing, Aggregate difference	-7	-15
Loans held for sale [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Loans held for sale	2	6
Loans, Unpaid principal	9	10
Loans, Loans held for sale and Mortgages held for sale, aggregate difference	-7	-4
Nonaccrual loans	2	2
Nonaccrual loans, Unpaid principal	9	6
Nonaccrual loans, Aggregate difference	-7	-4
Loans [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Loans	6,051	6,206
Loans, Unpaid principal	5,689	5,669
Loans, Loans held for sale and Mortgages held for sale, aggregate difference	362	537
Nonaccrual loans	141	89
Nonaccrual loans, Unpaid principal	142	89
Nonaccrual loans, Aggregate difference	-1	0
Other Assets [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Other assets	911	0
Other Assets, Unpaid principal	'n/a	'n/a
Other assets, aggregate difference	'n/a	'n/a
Long-term debt [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Long-term debt	0	-1
Long-term debt, Unpaid principal	-199	-1,157
Long-term debt, Aggregate differences	$199	$1,156

Fair_Value_Option_Gains_and_Lo

Fair Value, Option, Gains and Losses (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Mortgage banking noninterest income [Member] | Mortgages held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	$771	$2,594	$1,805	$6,915
Mortgage banking noninterest income [Member] | Loans held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Mortgage banking noninterest income [Member] | Loans Receivable [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Mortgage banking noninterest income [Member] | Long-term debt [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Mortgage banking noninterest income [Member] | Other Assets [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Mortgage banking noninterest income [Member] | Other interests held [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Other noninterest income [Member] | Mortgages held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	1
Other noninterest income [Member] | Loans held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	4	0	23
Other noninterest income [Member] | Loans Receivable [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	-21	54	-175	81
Other noninterest income [Member] | Long-term debt [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	-19	0	-23
Other noninterest income [Member] | Other Assets [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	54	0	93	0
Other noninterest income [Member] | Other interests held [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	18	6	33
Net gains (losses) from trading activities [Member] | Mortgages held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Net gains (losses) from trading activities [Member] | Loans held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Net gains (losses) from trading activities [Member] | Loans Receivable [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Net gains (losses) from trading activities [Member] | Long-term debt [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Net gains (losses) from trading activities [Member] | Other Assets [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	0	0	0	0
Net gains (losses) from trading activities [Member] | Other interests held [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (Losses) on changes in fair value	($4)	($12)	($17)	($36)

Fair_Value_Option_Instrument_S

Fair Value, Option, Instrument Specific Credit Risk (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (losses) attributable to instrument-specific credit risk	$1	($4)	$126	($76)
Mortgages held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (losses) attributable to instrument-specific credit risk	1	-8	126	-99
Loans held for sale [Member]	'	'	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'	'	'
Gains (losses) attributable to instrument-specific credit risk	$0	$4	$0	$23

Fair_Value_Estimates_for_Finan

Fair Value, Estimates for Financial Instruments Not Carried at Fair Value (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Financial assets:	'	'	'	'
Cash and due from banks	$18,928,000,000	$21,860,000,000	$16,986,000,000	$19,440,000,000
Federal funds sold, securities purchased under resale agreements and other short-term investments	182,036,000,000	137,313,000,000	'	'
Mortgages held for sale	25,395,000,000	47,149,000,000	'	'
Loans held for sale	204,000,000	110,000,000	'	'
Loans	812,325,000,000	799,574,000,000	'	'
Nonmarketable equity investments (cost method)	7,201,000,000	6,799,000,000	'	'
Financial liabilities:	'	'	'	'
Deposits	1,041,871,000,000	1,002,835,000,000	'	'
Short-term borrowings	53,851,000,000	57,175,000,000	'	'
Long-term debt	151,212,000,000	127,379,000,000	'	'
Carrying amount [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and due from banks	18,928,000,000	21,860,000,000	'	'
Federal funds sold, securities purchased under resale agreements and other short-term investments	182,036,000,000	137,313,000,000	'	'
Mortgages held for sale	2,186,000,000	4,844,000,000	'	'
Loans held for sale	202,000,000	104,000,000	'	'
Loans	779,525,000,000	763,968,000,000	'	'
Nonmarketable equity investments (cost method)	7,201,000,000	6,799,000,000	'	'
Financial liabilities:	'	'	'	'
Deposits	1,041,871,000,000	1,002,835,000,000	'	'
Short-term borrowings	53,851,000,000	57,175,000,000	'	'
Long-term debt	151,201,000,000	127,366,000,000	'	'
Estimated fair value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and due from banks	18,928,000,000	21,860,000,000	'	'
Federal funds sold, securities purchased under resale agreements and other short-term investments	182,036,000,000	137,313,000,000	'	'
Mortgages held for sale	2,189,000,000	4,853,000,000	'	'
Loans held for sale	206,000,000	112,000,000	'	'
Loans	785,388,000,000	772,351,000,000	'	'
Nonmarketable equity investments (cost method)	8,700,000,000	8,231,000,000	'	'
Financial liabilities:	'	'	'	'
Deposits	1,042,290,000,000	1,003,942,000,000	'	'
Short-term borrowings	53,851,000,000	57,175,000,000	'	'
Long-term debt	153,540,000,000	130,283,000,000	'	'
Estimated fair value [Member] | Level 1 [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and due from banks	18,928,000,000	21,860,000,000	'	'
Federal funds sold, securities purchased under resale agreements and other short-term investments	5,327,000,000	5,046,000,000	'	'
Mortgages held for sale	0	0	'	'
Loans held for sale	0	0	'	'
Loans	0	0	'	'
Nonmarketable equity investments (cost method)	0	0	'	'
Financial liabilities:	'	'	'	'
Deposits	0	0	'	'
Short-term borrowings	0	0	'	'
Long-term debt	0	0	'	'
Estimated fair value [Member] | Level 2 [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and due from banks	0	0	'	'
Federal funds sold, securities purchased under resale agreements and other short-term investments	176,709,000,000	132,267,000,000	'	'
Mortgages held for sale	1,267,000,000	3,808,000,000	'	'
Loans held for sale	182,000,000	83,000,000	'	'
Loans	56,776,000,000	56,237,000,000	'	'
Nonmarketable equity investments (cost method)	0	2,000,000	'	'
Financial liabilities:	'	'	'	'
Deposits	996,869,000,000	946,922,000,000	'	'
Short-term borrowings	53,851,000,000	57,175,000,000	'	'
Long-term debt	142,862,000,000	119,220,000,000	'	'
Estimated fair value [Member] | Level 3 [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and due from banks	0	0	'	'
Federal funds sold, securities purchased under resale agreements and other short-term investments	0	0	'	'
Mortgages held for sale	922,000,000	1,045,000,000	'	'
Loans held for sale	24,000,000	29,000,000	'	'
Loans	728,612,000,000	716,114,000,000	'	'
Nonmarketable equity investments (cost method)	8,700,000,000	8,229,000,000	'	'
Financial liabilities:	'	'	'	'
Deposits	45,421,000,000	57,020,000,000	'	'
Short-term borrowings	0	0	'	'
Long-term debt	$10,678,000,000	$11,063,000,000	'	'

Preferred_Stock_Textuals_Detai

Preferred Stock Textuals (Details) (USD $)

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Mar. 31, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Preferred Stock, No Voting Rights [Member]

Preferred Stock, Voting Rights [Member]

Employee Stock Ownership Plan Preferred Stock [Member]

Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]

Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]

Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]

Series G - 7.25% Class A Preferred Stock [Member]

Series H - Floating Class A Preferred Stock [Member]

Series Q Preferred Stock [Member]

Series Q Preferred Stock [Member]

Preferred Stock (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Shares Authorized

'

'

20,000,000

4,000,000

'

'

'

'

'

'

'

'

Par value

$16,948,000,000

$14,282,000,000

$0

$0

'

'

$625,000,000

$0

'

'

$1,725,000,000

$0

Shares issued and outstanding

10,969,113

10,558,865

'

0

'

'

25,000

0

'

'

69,000

0

Voting Rights

'

'

'

'If issued, preference shares would be limited to one vote per share

'

'

'

'

'

'

'

'

Depositary shares issued and outstanding

'

'

'

'

'

25,000,000

'

'

'

'

69,000,000

'

Percentage Interest in a share of issued preferred stock

'

'

'

'

'

0.10%

'

'

'

'

0.10%

'

Preferred stock, commitment to issue

'

'

'

'

'

'

'

'

0

0

'

'

Redemption terms

'

'

'

'

'We have the option to redeem the ESOP Preferred Stock at any time, in whole or in part, at a redemption price per share equal to the higher of (a) $1,000 per share plus accrued and unpaid dividends or (b) the fair market value

'

'

'

'

'

'

'

Additional paid-in capital included related to preferred stock

$105,000,000

$75,000,000

'

'

'

'

'

'

'

'

'

'

Preferred_Stock_Details

Preferred Stock (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock Shares Authorized And Designated	10,200,010	10,104,610
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	10,969,113	10,558,865
Par value	$16,948,000,000	$14,282,000,000
Carrying value	15,549,000,000	12,883,000,000
Discount	1,399,000,000	1,399,000,000
ESOP Shares issued and outstanding	1,227,182	910,934
ESOP Par value	1,227,000,000	911,000,000
ESOP Carrying value	1,227,000,000	911,000,000
ESOP Discount	0	0
Series G - 7.25% Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$15,000	$15,000
Preferred Stock Shares Authorized And Designated	50,000	50,000
Series H - Floating Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$20,000	$20,000
Preferred Stock Shares Authorized And Designated	50,000	50,000
Series I - Floating Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$100,000	$100,000
Preferred Stock Shares Authorized And Designated	25,010	25,010
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	25,010	25,010
Par value	2,501,000,000	2,501,000,000
Carrying value	2,501,000,000	2,501,000,000
Discount	0	0
Series J - 8.00% Non-Cumulative Perpetual Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$1,000	$1,000
Preferred Stock Shares Authorized And Designated	2,300,000	2,300,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	2,150,375	2,150,375
Par value	2,150,000,000	2,150,000,000
Carrying value	1,995,000,000	1,995,000,000
Discount	155,000,000	155,000,000
Series K - 7.98% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$1,000	$1,000
Preferred Stock Shares Authorized And Designated	3,500,000	3,500,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	3,352,000	3,352,000
Par value	3,352,000,000	3,352,000,000
Carrying value	2,876,000,000	2,876,000,000
Discount	476,000,000	476,000,000
Series L - 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$1,000	$1,000
Preferred Stock Shares Authorized And Designated	4,025,000	4,025,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	3,968,000	3,968,000
Par value	3,968,000,000	3,968,000,000
Carrying value	3,200,000,000	3,200,000,000
Discount	768,000,000	768,000,000
Series N - 5.20% Non-Cumulative Perpetual Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$25,000	$25,000
Preferred Stock Shares Authorized And Designated	30,000	30,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	30,000	30,000
Par value	750,000,000	750,000,000
Carrying value	750,000,000	750,000,000
Discount	0	0
Series O - 5.125% Non-Cumulative Perpetual Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$25,000	$25,000
Preferred Stock Shares Authorized And Designated	27,600	27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	26,000	26,000
Par value	650,000,000	650,000,000
Carrying value	650,000,000	650,000,000
Discount	0	0
Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$25,000	$0
Preferred Stock Shares Authorized And Designated	26,400	0
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	25,000	0
Par value	625,000,000	0
Carrying value	625,000,000	0
Discount	0	0
Dividend Equalization Preferred [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$10	$10
Preferred Stock Shares Authorized And Designated	97,000	97,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	96,546	96,546
Par value	0	0
Carrying value	0	0
Discount	0	0
Series Q - 5.85% Non-Cumulative Perpetual Class A Preferred Stock [Member]	'	'
Detail of Preferred Stock [Abstract]	'	'
Preferred Stock, Liquidation Preference Per Share	$25,000	$0
Preferred Stock Shares Authorized And Designated	69,000	0
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Shares issued and outstanding	69,000	0
Par value	1,725,000,000	0
Carrying value	1,725,000,000	0
Discount	$0	$0

ESOP_Preferred_Stock_Details

ESOP Preferred Stock (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	1,227,182	910,934
Carrying value	1,227	911
Unearned ESOP shares	-1,332	-986
Employee Stock Ownership Plan Preferred Stock 2004 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	0	7,413
Carrying value	0	7
Employee Stock Ownership Plan Preferred Stock 2004 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	8.50%	8.50%
Employee Stock Ownership Plan Preferred Stock 2004 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	9.50%	9.50%
Employee Stock Ownership Plan Preferred Stock 2005 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	11,101	18,882
Carrying value	11	19
Employee Stock Ownership Plan Preferred Stock 2005 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	9.75%	9.75%
Employee Stock Ownership Plan Preferred Stock 2005 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.75%	10.75%
Employee Stock Ownership Plan Preferred Stock 2006 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	24,244	33,559
Carrying value	24	34
Employee Stock Ownership Plan Preferred Stock 2006 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.75%	10.75%
Employee Stock Ownership Plan Preferred Stock 2006 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	11.75%	11.75%
Employee Stock Ownership Plan Preferred Stock 2007 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	42,878	53,768
Carrying value	43	54
Employee Stock Ownership Plan Preferred Stock 2007 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.75%	10.75%
Employee Stock Ownership Plan Preferred Stock 2007 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	11.75%	11.75%
Employee Stock Ownership Plan Preferred Stock 2008 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	61,724	73,434
Carrying value	62	73
Employee Stock Ownership Plan Preferred Stock 2008 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.50%	10.50%
Employee Stock Ownership Plan Preferred Stock 2008 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	11.50%	11.50%
Employee Stock Ownership Plan Preferred Stock 2010 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	178,511	201,011
Carrying value	179	201
Employee Stock Ownership Plan Preferred Stock 2010 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	9.50%	9.50%
Employee Stock Ownership Plan Preferred Stock 2010 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.50%	10.50%
Employee Stock Ownership Plan Preferred Stock 2011 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	250,263	277,263
Carrying value	250	277
Employee Stock Ownership Plan Preferred Stock 2011 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	9.00%	9.00%
Employee Stock Ownership Plan Preferred Stock 2011 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.00%	10.00%
Employee Stock Ownership Plan Preferred Stock 2012 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	224,454	245,604
Carrying value	224	246
Employee Stock Ownership Plan Preferred Stock 2012 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	10.00%	10.00%
Employee Stock Ownership Plan Preferred Stock 2012 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	11.00%	11.00%
Employee Stock Ownership Plan Preferred Stock 2013 [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Shares issued and outstanding	434,007	0
Carrying value	434	0
Employee Stock Ownership Plan Preferred Stock 2013 [Member] | Minimum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	8.50%	'
Employee Stock Ownership Plan Preferred Stock 2013 [Member] | Maximum [Member]	'	'
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]	'	'
Adjustable dividend rate	11.00%	'

Employee_Benefits_Textual_Deta

Employee Benefits Textual (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2013
Employee Benefits Textual [Abstract]	'	'
Cash balance plan settlement	($27)	($95)
Decrease in cash balance plan liability from remeasurement	-297	-1,100
Increase in cumulative other comprehensive income from remeasurement of cash balance plan obligation, before tax	324	1,200
Increase in cumulative other comprehensive income from remeasurement of cash balance plan obligation, after tax	$202	$726
Discount rate, benefit obligation	4.75%	4.75%

Employee_Benefits_Components_o

Employee Benefits, Components of Net Periodic Benefit Cost (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income [Abstract]	'	'	'	'
Net actuarial loss (gain)	($297)	$1	($1,075)	$18
Total recognized in other comprehensive income	-356	-34	-1,296	-93
Pension Benefits Qualified [Member]	'	'	'	'
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]	'	'	'	'
Service cost	1	0	1	1
Interest cost	121	128	347	384
Expected return on plan assets	-166	-162	-507	-487
Amortization of net actuarial loss	29	33	113	99
Amortization of prior service credit	0	0	0	0
Settlement	27	1	95	2
Net periodic benefit cost (income)	12	0	49	-1
Pension Benefits Nonqualified [Member]	'	'	'	'
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]	'	'	'	'
Service cost	0	1	0	1
Interest cost	7	8	21	24
Expected return on plan assets	0	0	0	0
Amortization of net actuarial loss	4	2	11	7
Amortization of prior service credit	0	0	0	0
Settlement	0	0	4	5
Net periodic benefit cost (income)	11	11	36	37
Other benefits [Member]	'	'	'	'
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]	'	'	'	'
Service cost	3	3	8	9
Interest cost	11	15	35	45
Expected return on plan assets	-9	-9	-27	-26
Amortization of net actuarial loss	0	0	0	0
Amortization of prior service credit	-1	-1	-2	-2
Settlement	0	-2	0	-3
Net periodic benefit cost (income)	$4	$6	$14	$23

Earnings_per_Common_Share_Text

Earnings per Common Share Textuals (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Common Share (Textual) [Abstract]	'	'	'	'
Preferred stock dividends	$261	$220	$747	$659

Earnings_Per_Common_Share_Calc

Earnings Per Common Share, Calculation of Earnings and Diluted Earnings per Common Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Common Share [Abstract]	'	'	'	'
Wells Fargo net income	$5,578	$4,937	$16,268	$13,807
Less: Preferred stock dividends and other	261	220	748	665
Wells Fargo net income applicable to common stock (numerator)	$5,317	$4,717	$15,520	$13,142
Earnings per common share	'	'	'	'
Average common shares outstanding (denominator)	5,295.30	5,288.10	5,293	5,292.70
Per share	$1	$0.89	$2.93	$2.48
Diluted earnings per common share	'	'	'	'
Average common shares outstanding	5,295.30	5,288.10	5,293	5,292.70
Diluted average common shares outstanding (denominator)	5,381.70	5,355.60	5,374.70	5,355.70
Per share	$0.99	$0.88	$2.89	$2.45
Stock Options [Member]	'	'	'	'
Diluted earnings per common share	'	'	'	'
Weighted Average Number Diluted Shares Outstanding, Adjustment	34	28.7	32.6	28.3
Restricted Share Rights [Member]	'	'	'	'
Diluted earnings per common share	'	'	'	'
Weighted Average Number Diluted Shares Outstanding, Adjustment	44.5	38.6	43.9	34.7
Warrants [Member]	'	'	'	'
Diluted earnings per common share	'	'	'	'
Weighted Average Number Diluted Shares Outstanding, Adjustment	7.9	0.2	5.2	0

Earnings_Per_Common_Share_Anti

Earnings Per Common Share, Antidilutive Securities Excluded from the Calculation of Diluted Earnings per Common Share (Details)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock Options [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	10.2	53.5	11.3	57.2
Warrants [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	0	39.2

Other_Comprehensive_Income_Com

Other Comprehensive Income, Components of Other Comprehensive Income (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Securities available for sale:	'	'	'	'
Net unrealized gains (losses) arising during the period, Before tax	$842	$2,892	($5,922)	$5,597
Net unrealized gains (losses) arising during the period, Tax effect	-199	-1,077	2,331	-2,097
Net unrealized gains (losses) arising during the period, Net of tax	643	1,815	-3,591	3,500
Reclassification of net (gains) losses to net income, Before tax	-114	-41	-197	-290
Reclassification of net (gains) losses to net income, Tax effect	42	15	74	109
Reclassification of net (gains) losses to net income, Net of tax	-72	-26	-123	-181
Net change, Before tax	728	2,851	-6,119	5,307
Net change, Tax effect	-157	-1,062	2,405	-1,988
Net change, Net of tax	571	1,789	-3,714	3,319
Derivatives and hedging activities:	'	'	'	'
Net unrealized gains (losses) arising during the period, Before tax	-7	24	-10	63
Net unrealized gains (losses) arising during the period, Tax effect	3	-3	4	-19
Net unrealized gains (losses) arising during the period, Net of tax	-4	21	-6	44
Reclassification of net (gains) losses on cash flow hedges to net income, Before tax	-69	-89	-225	-295
Reclassification of net (gains) losses on cash flow hedges to net income, Tax effect	21	38	80	115
Reclassification of net (gains) losses on cash flow hedges to net income, Net of tax	-48	-51	-145	-180
Net change, Before tax	-76	-65	-235	-232
Net change, Tax effect	24	35	84	96
Net change, Net of tax	-52	-30	-151	-136
Defined benefit plans adjustments:	'	'	'	'
Net actuarial gains (losses) arising during the period, Before tax	297	-1	1,075	-18
Net actuarial gains (losses) arising during the period, Tax effect	-112	0	-405	7
Net actuarial gains (losses) arising during the period, Net of tax	185	-1	670	-11
Amortization of net actuarial loss, Before tax	33	35	124	106
Amortization of net actuarial loss, Tax effect	-13	-13	-47	-40
Amortization of net actuarial loss, Net of tax	20	22	77	66
Settlements and other, Before tax	26	0	97	5
Settlements and other, Tax effect	-9	0	-36	-2
Settlements and other, Net of tax	17	0	61	3
Reclassification to net periodic benefit costs, Before tax	59	35	221	111
Reclassification to net periodic benefit costs, Tax effect	-22	-13	-83	-42
Reclassification to net periodic benefit costs, Net of tax	37	22	138	69
Net change, Before tax	356	34	1,296	93
Net change, Tax effect	-134	-13	-488	-35
Net change, Net of tax	222	21	808	58
Foreign currency translation adjustments:	'	'	'	'
Net unrealized losses arising during the period, Before tax	12	45	-27	-1
Net unrealized losses arising during the period, Tax effect	2	-17	-4	0
Net unrealized losses arising during the period, Net of tax	14	28	-31	-1
Reclassification of net gains to net income, Before tax	3	0	-12	-10
Reclassification of net gains to net income, Tax effect	0	0	5	4
Reclassification of net gains to net income, Net of tax	3	0	-7	-6
Net change, Before tax	15	45	-39	-11
Net change, Tax effect	2	-17	1	4
Net change, Net of tax	17	28	-38	-7
Other comprehensive income (loss), Before tax	1,023	2,865	-5,097	5,157
Other Comprehensive Income (Loss), Tax effect	-265	-1,057	2,002	-1,923
Other comprehensive income (loss), Net of tax	758	1,808	-3,095	3,234
Less: Other comprehensive income (loss) from noncontrolling interests, net of tax	266	2	266	6
Wells Fargo other comprehensive income (loss), net of tax	492	1,806	-3,361	3,228
Interest income on loans [Member]	'	'	'	'
Derivatives and hedging activities:	'	'	'	'
Reclassification of net (gains) losses on cash flow hedges to net income, Before tax	-106	-118	-337	-370
Reclassification of net (gains) losses on cash flow hedges to net income, Tax effect	35	48	122	143
Reclassification of net (gains) losses on cash flow hedges to net income, Net of tax	-71	-70	-215	-227
Interest expense on long-term debt [Member]	'	'	'	'
Derivatives and hedging activities:	'	'	'	'
Reclassification of net (gains) losses on cash flow hedges to net income, Before tax	19	24	73	70
Reclassification of net (gains) losses on cash flow hedges to net income, Tax effect	-7	-8	-27	-26
Reclassification of net (gains) losses on cash flow hedges to net income, Net of tax	12	16	46	44
Salaries expense [Member]	'	'	'	'
Derivatives and hedging activities:	'	'	'	'
Reclassification of net (gains) losses on cash flow hedges to net income, Before tax	0	5	4	5
Reclassification of net (gains) losses on cash flow hedges to net income, Tax effect	0	-2	-2	-2
Reclassification of net (gains) losses on cash flow hedges to net income, Net of tax	0	3	2	3
Noninterest income [Member]	'	'	'	'
Derivatives and hedging activities:	'	'	'	'
Reclassification of net (gains) losses on cash flow hedges to net income, Before tax	18	0	35	0
Reclassification of net (gains) losses on cash flow hedges to net income, Tax effect	-7	0	-13	0
Reclassification of net (gains) losses on cash flow hedges to net income, Net of tax	11	0	22	0
Debt securities available for sale [Member]	'	'	'	'
Securities available for sale:	'	'	'	'
Reclassification of net (gains) losses to net income, Before tax	6	-3	15	65
Reclassification of net (gains) losses to net income, Tax effect	-3	1	-6	-25
Reclassification of net (gains) losses to net income, Net of tax	3	-2	9	40
Equity investments [Member]	'	'	'	'
Securities available for sale:	'	'	'	'
Reclassification of net (gains) losses to net income, Before tax	-120	-38	-212	-355
Reclassification of net (gains) losses to net income, Tax effect	45	14	80	134
Reclassification of net (gains) losses to net income, Net of tax	($75)	($24)	($132)	($221)

Other_Comprehensive_Income_Cum

Other Comprehensive Income, Cumulative OCI Balances (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Securities available for sale:	'	'	'	'
Cumulative other comprehensive income, Securities available for sale, beginning balance	$3,177	$5,939	$7,462	$4,413
Net unrealized gains (losses) arising during the period	643	1,815	-3,591	3,500
Amounts reclassified to net income	-72	-26	-123	-181
Net change	571	1,789	-3,714	3,319
Less: Other comprehensive income (loss) from noncontrolling interests	265	3	265	7
Cumulative other comprehensive income, Securities available for sale, ending balance	3,483	7,725	3,483	7,725
Derivatives and hedging activities:	'	'	'	'
Cumulative other comprehensive income, Derivatives and hedging activities, beginning balance	190	384	289	490
Net unrealized gains (losses) arising during the period, Net of tax	-4	21	-6	44
Amounts reclassified to net income	-48	-51	-145	-180
Net change	-52	-30	-151	-136
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	0
Cumulative other comprehensive income, Derivatives and hedging activities, ending balance	138	354	138	354
Defined benefit plans adjustments:	'	'	'	'
Cumulative other comprehensive income, Defined benefit plans adjustment, beginning balance	-1,595	-1,749	-2,181	-1,786
Net unrealized gains (losses) arising during the period	185	-1	670	-11
Amounts reclassified to net income	37	22	138	69
Net change	222	21	808	58
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	0
Cumulative other comprehensive income, Defined benefit plans adjustment, ending balance	-1,373	-1,728	-1,373	-1,728
Foreign currency translation adjustments:	'	'	'	'
Cumulative other comprehensive income, Foreign currency translation adjustments, beginning balance	25	55	80	90
Net unrealized gains (losses) arising during the period	14	28	-31	-1
Amounts reclassified to net income	3	0	-7	-6
Net change	17	28	-38	-7
Less: Other comprehensive income (loss) from noncontrolling interests	1	-1	1	-1
Cumulative other comprehensive income, Foreign currency translation adjustments, ending balance	41	84	41	84
Cumulative Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	1,797	4,629	5,650	3,207
Net unrealized gains (losses) arising during the period	838	1,863	-2,958	3,532
Amounts reclassified to net income	-80	-55	-137	-298
Net change	758	1,808	-3,095	3,234
Less: Other comprehensive income from noncontrolling interests	266	2	266	6
Cumulative Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$2,289	$6,435	$2,289	$6,435

Operating_Segments_Details

Operating Segments (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financial Information of Operating Segment [Abstract]	'	'	'	'
Net interest income	$10,748,000,000	$10,662,000,000	$31,997,000,000	$32,587,000,000
Provision (reversal of provision) for credit losses	75,000,000	1,591,000,000	1,946,000,000	5,386,000,000
Noninterest income	9,730,000,000	10,551,000,000	31,118,000,000	31,551,000,000
Noninterest expense	12,102,000,000	12,112,000,000	36,757,000,000	37,502,000,000
Income (loss) before income tax expense (benefit)	8,301,000,000	7,510,000,000	24,412,000,000	21,250,000,000
Income Tax Expense (Benefit)	2,618,000,000	2,480,000,000	7,901,000,000	7,179,000,000
Net income (loss) before noncontrolling interests	5,683,000,000	5,030,000,000	16,511,000,000	14,071,000,000
Less: Net income from noncontrolling interests	105,000,000	93,000,000	243,000,000	264,000,000
Net income	5,578,000,000	4,937,000,000	16,268,000,000	13,807,000,000
Average loans	804,800,000,000	776,700,000,000	801,100,000,000	771,200,000,000
Average assets	1,449,600,000,000	1,354,300,000,000	1,427,800,000,000	1,326,400,000,000
Average core deposits	940,300,000,000	895,400,000,000	934,100,000,000	882,200,000,000
Operating Segment (Textual) [Abstract]	'	'	'	'
Annual sales of wholesale banking customers	'	'	'in excess of $20 million	'
Annual sales of small business community banking customers	'	'	'up to $20 million	'
Community Banking [Member]	'	'	'	'
Financial Information of Operating Segment [Abstract]	'	'	'	'
Net interest income	7,244,000,000	7,247,000,000	21,614,000,000	21,879,000,000
Provision (reversal of provision) for credit losses	240,000,000	1,627,000,000	2,265,000,000	5,078,000,000
Noninterest income	5,000,000,000	5,863,000,000	16,471,000,000	17,744,000,000
Noninterest expense	7,060,000,000	7,402,000,000	21,650,000,000	22,807,000,000
Income (loss) before income tax expense (benefit)	4,944,000,000	4,081,000,000	14,170,000,000	11,738,000,000
Income Tax Expense (Benefit)	1,505,000,000	1,250,000,000	4,426,000,000	3,856,000,000
Net income (loss) before noncontrolling interests	3,439,000,000	2,831,000,000	9,744,000,000	7,882,000,000
Less: Net income from noncontrolling interests	98,000,000	91,000,000	234,000,000	259,000,000
Net income	3,341,000,000	2,740,000,000	9,510,000,000	7,623,000,000
Average loans	497,700,000,000	485,300,000,000	498,300,000,000	485,100,000,000
Average assets	836,600,000,000	765,100,000,000	819,200,000,000	750,100,000,000
Average core deposits	618,200,000,000	594,500,000,000	620,100,000,000	585,300,000,000
Wholesale Banking [Member]	'	'	'	'
Financial Information of Operating Segment [Abstract]	'	'	'	'
Net interest income	3,059,000,000	3,028,000,000	9,165,000,000	9,556,000,000
Provision (reversal of provision) for credit losses	-144,000,000	-57,000,000	-320,000,000	226,000,000
Noninterest income	2,812,000,000	2,921,000,000	8,927,000,000	8,543,000,000
Noninterest expense	3,084,000,000	2,908,000,000	9,358,000,000	9,075,000,000
Income (loss) before income tax expense (benefit)	2,931,000,000	3,098,000,000	9,054,000,000	8,798,000,000
Income Tax Expense (Benefit)	952,000,000	1,103,000,000	3,024,000,000	3,051,000,000
Net income (loss) before noncontrolling interests	1,979,000,000	1,995,000,000	6,030,000,000	5,747,000,000
Less: Net income from noncontrolling interests	6,000,000	2,000,000	8,000,000	5,000,000
Net income	1,973,000,000	1,993,000,000	6,022,000,000	5,742,000,000
Average loans	290,400,000,000	277,100,000,000	287,300,000,000	272,000,000,000
Average assets	500,700,000,000	490,700,000,000	498,900,000,000	479,000,000,000
Average core deposits	235,300,000,000	225,400,000,000	230,000,000,000	222,400,000,000
Wealth Brokerage and Retirement [Member]	'	'	'	'
Financial Information of Operating Segment [Abstract]	'	'	'	'
Net interest income	749,000,000	680,000,000	2,118,000,000	2,079,000,000
Provision (reversal of provision) for credit losses	-38,000,000	30,000,000	-5,000,000	110,000,000
Noninterest income	2,558,000,000	2,353,000,000	7,647,000,000	6,987,000,000
Noninterest expense	2,619,000,000	2,457,000,000	7,800,000,000	7,380,000,000
Income (loss) before income tax expense (benefit)	726,000,000	546,000,000	1,970,000,000	1,576,000,000
Income Tax Expense (Benefit)	275,000,000	208,000,000	748,000,000	599,000,000
Net income (loss) before noncontrolling interests	451,000,000	338,000,000	1,222,000,000	977,000,000
Less: Net income from noncontrolling interests	1,000,000	0	1,000,000	0
Net income	450,000,000	338,000,000	1,221,000,000	977,000,000
Average loans	46,700,000,000	42,500,000,000	45,300,000,000	42,500,000,000
Average assets	180,800,000,000	163,800,000,000	179,400,000,000	162,200,000,000
Average core deposits	150,600,000,000	136,700,000,000	148,800,000,000	135,500,000,000
Other [Member]	'	'	'	'
Financial Information of Operating Segment [Abstract]	'	'	'	'
Net interest income	-304,000,000	-293,000,000	-900,000,000	-927,000,000
Provision (reversal of provision) for credit losses	17,000,000	-9,000,000	6,000,000	-28,000,000
Noninterest income	-640,000,000	-586,000,000	-1,927,000,000	-1,723,000,000
Noninterest expense	-661,000,000	-655,000,000	-2,051,000,000	-1,760,000,000
Income (loss) before income tax expense (benefit)	-300,000,000	-215,000,000	-782,000,000	-862,000,000
Income Tax Expense (Benefit)	-114,000,000	-81,000,000	-297,000,000	-327,000,000
Net income (loss) before noncontrolling interests	-186,000,000	-134,000,000	-485,000,000	-535,000,000
Less: Net income from noncontrolling interests	0	0	0	0
Net income	-186,000,000	-134,000,000	-485,000,000	-535,000,000
Average loans	-30,000,000,000	-28,200,000,000	-29,800,000,000	-28,400,000,000
Average assets	-68,500,000,000	-65,300,000,000	-69,700,000,000	-64,900,000,000
Average core deposits	($63,800,000,000)	($61,200,000,000)	($64,800,000,000)	($61,000,000,000)

Regulatory_and_Agency_Capital_2

Regulatory and Agency Capital Requirements (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2013	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012
In Billions, unless otherwise specified			Basel I [Member]	Basel III [Member]	Trust Preferred Securities [Member]	Wells Fargo & Company [Member]	Wells Fargo & Company [Member]	Wells Fargo Bank, NA [Member]	Wells Fargo Bank, NA [Member]
Regulatory And Agency Capital Requirements [Abstract]	'	'	'	'	'	'	'	'	'
Tier 1 capital, amounts	'	'	'	'	'	$137.50	$126.60	$110.20	$101.30
Total capital, amounts	'	'	'	'	'	171.3	157.6	137.3	124.8
Risk Weighted Assets	'	'	'	'	'	1,135.10	1,077.10	1,046.30	1,002
Adjusted Average Assets	'	'	'	'	'	1,408.50	1,336.40	1,262.80	1,195.90
Tier 1 capital ratio	'	'	'	'	'	12.11%	11.75%	10.53%	10.11%
Total capital ratio	'	'	'	'	'	15.09%	14.63%	13.12%	12.45%
Tier 1 leverage capital ratio	'	'	'	'	'	9.76%	9.47%	8.72%	8.47%
Tier 1 capital ratio required to be well capitalized	6.00%	6.00%	'	'	'	'	'	'	'
Total capital ratio required to be well capitalized	10.00%	10.00%	'	'	'	'	'	'	'
Tier 1 leverage capital ratio required to be well capitalized	5.00%	5.00%	'	'	'	'	'	'	'
Tier 1 capital ratio required for capital adequacy purposes	4.00%	4.00%	'	'	'	'	'	'	'
Total capital ratio required for capital adequacy purposes	8.00%	8.00%	'	'	'	'	'	'	'
Tier 1 leverage capital ratio required for capital adequacy purposes	4.00%	4.00%	'	'	'	'	'	'	'
Regulatory and Agency Capital Requirements (Textual) [Abstract]	'	'	'	'	'	'	'	'	'
Trust preferred and perpetual preferred purchase securities included in Tier 1 capital	2.1	'	'	'	'	'	'	'	'
Minimum leverage ratio for banking organizations	3.00%	'	'	'	'	'	'	'	'
Trust preferred securities redeemed	'	'	'	'	$2.80	'	'	'	'
Impact on capital ratios from implementation of market risk capital rule	'	'	0.25%	0.00%	'	'	'	'	'