Wells Fargo & Company (WFC) 10-Q 1 Nov 19 2019 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Oct. 23, 2019
Entity Information [Line Items]
Entity Registrant Name	WELLS FARGO & COMPANY/MN
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2019
Entity File Number	001-2979
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	41-0449260
Entity Address, Address Line One	420 Montgomery Street
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94163
City Area Code	866
Local Phone Number	249-3302
Title of 12(b) Security	Common Stock, par value $1-2/3
Trading Symbol	WFC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		4,229,359,203
Entity Central Index Key	0000072971
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
7.5% Non-Cumulative Perpetual Convertible Class A Preferred Stock, Series L
Entity Information [Line Items]
Title of 12(b) Security	7.5% Non-Cumulative Perpetual Convertible Class A Preferred Stock, Series L
Trading Symbol	WFC.PRL
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series N
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series N
Trading Symbol	WFC.PRN
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series O
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series O
Trading Symbol	WFC.PRO
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series P
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series P
Trading Symbol	WFC.PRP
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th int. in a share of 5.85% Fixed-to-Floating Rate Non-Cum. Perpetual Class A Preferred Stock, Series Q
Entity Information [Line Items]
Title of 12(b) Security	Dep Shr, 1/1000th int. per shr of 5.85% Fix-to-Float Non-Cum. Perpetual Class A Pref. Stock, Ser. Q
Trading Symbol	WFC.PRQ
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th int. in a share of 6.625% Fixed-to-Floating Rate Non-Cum. Perpetual Class A Preferred Stock, Series R
Entity Information [Line Items]
Title of 12(b) Security	Dep Shr, 1/1000th int. per shr of 6.625% Fix-to-Float Non-Cum. Perpetual Class A Pref. Stock, Ser. R
Trading Symbol	WFC.PRR
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series T
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series T
Trading Symbol	WFC.PRT
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series V
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series V
Trading Symbol	WFC.PRV
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series W
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series W
Trading Symbol	WFC.PRW
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series X
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series X
Trading Symbol	WFC.PRX
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series Y
Entity Information [Line Items]
Title of 12(b) Security	Dep Shares, 1/1000th int. per share of Non-Cumulative Perpetual Class A Preferred Stock, Series Y
Trading Symbol	WFC.PRY
Security Exchange Name	NYSE
Guarantee of 5.80% Fixed-to-Floating Rate Normal Wachovia Income Trust Securities of Wachovia Capital Trust III
Entity Information [Line Items]
Title of 12(b) Security	Guarantee 5.80% Fix-to-Float Normal Wachovia Income Trust Securities of Wachovia Capital Trust III
Trading Symbol	WBTP
Security Exchange Name	NYSE
Guarantee of Medium-Term Notes, Series A, due October 30, 2028 of Wells Fargo Finance LLC
Entity Information [Line Items]
Title of 12(b) Security	Guarantee of Medium-Term Notes, Series A, due October 30, 2028 of Wells Fargo Finance LLC
Trading Symbol	WFC/28A
Security Exchange Name	NYSE

Consolidated Statement of Incom

Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest income
Debt securities		$ 3,666	$ 3,595	$ 11,388	$ 10,603
Mortgage loans held for sale		232	210	579	587
Loans held for sale		20	35	64	107
Loans		10,982	11,116	33,652	32,607
Equity securities		247	280	693	732
Other interest income		1,352	1,128	4,112	3,090
Total interest income		16,499	16,364	50,488	47,726
Interest expense
Deposits		2,324	1,499	6,563	3,857
Short-term borrowings		635	462	1,877	1,171
Long-term debt		1,780	1,667	5,607	4,901
Other interest expense		135	164	410	446
Total interest expense		4,874	3,792	14,457	10,375
Net interest income		11,625	12,572	36,031	37,351
Provision for credit losses		695	580	2,043	1,223
Net interest income after provision for credit losses		10,930	11,992	33,988	36,128
Noninterest income
Mortgage banking		466	846	1,932	2,550
Insurance		91	104	280	320
Net gains from trading activities		276	158	862	592
Net gains on debt securities (1)	[1]	3	57	148	99
Net gains from equity securities (2)	[2]	956	416	2,392	1,494
Lease income		402	453	1,269	1,351
Other		1,528	633	2,846	1,720
Total noninterest income		10,385	9,369	29,172	28,077
Noninterest expense
Salaries		4,695	4,461	13,661	13,289
Commission and incentive compensation		2,735	2,427	8,177	7,837
Employee benefits		1,164	1,377	4,438	4,220
Equipment		693	634	1,961	1,801
Net occupancy		760	718	2,196	2,153
Core deposit and other intangibles		27	264	82	794
FDIC and other deposit assessments		93	336	396	957
Other		5,032	3,546	11,653	11,736
Total noninterest expense		15,199	13,763	42,564	42,787
Income before income tax expense		6,116	7,598	20,596	21,418
Income tax expense		1,304	1,512	3,479	4,696
Net income before noncontrolling interests		4,812	6,086	17,117	16,722
Less: Net income from noncontrolling interests		202	79	441	393
Wells Fargo net income		4,610	6,007	16,676	16,329
Less: Preferred stock dividends and other		573	554	1,284	1,351
Wells Fargo net income applicable to common stock		$ 4,037	$ 5,453	$ 15,392	$ 14,978
Per share information
Earnings per common share (in dollars per share)		$ 0.93	$ 1.14	$ 3.45	$ 3.09
Diluted earnings per common share (in dollars per share)		$ 0.92	$ 1.13	$ 3.43	$ 3.07
Average common shares outstanding (in shares)		4,358.5	4,784	4,459.1	4,844.8
Diluted average common shares outstanding (in shares)		4,389.6	4,823.2	4,489.5	4,885
Service charges on deposit accounts
Noninterest income
Fee income		$ 1,219	$ 1,204	$ 3,519	$ 3,540
Trust and investment fees
Noninterest income
Fee income		3,559	3,631	10,500	10,989
Card fees
Noninterest income
Fee income		1,027	1,017	2,996	2,926
Other fees
Noninterest income
Fee income		$ 858	$ 850	$ 2,428	$ 2,496
[1]	(1) Total other-than-temporary impairment (OTTI) losses (reversal of losses) were $8 million and $0 million for third quarter 2019 and 2018 , respectively. Of total OTTI, losses of $6 million and $5 million were recognized in earnings, and losses (reversal of losses) of $2 million and $(5) million were recognized as non-credit-related OTTI in other comprehensive income for third quarter 2019 and 2018 , respectively. Total OTTI losses were $59 million and $14 million for the first nine months of 2019 and 2018 , respectively. Of total OTTI, losses of $58 million and $23 million were recognized in earnings, and losses (reversal of losses) of $1 million and $(9) million were recognized as non-credit-related OTTI in other comprehensive income for the first nine months of 2019 and 2018 , respectively.
[2]	(2) Includes OTTI losses of $43 million and $45 million for third quarter 2019 and 2018 , respectively, and $110 million and $302 million for the first nine months of 2019 and 2018 , respectively.

Consolidated Statement of Inc_2

Consolidated Statement of Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Noninterest income
Total OTTI losses recorded on equity securities	$ 43	$ 45	$ 110	$ 302
Debt securities [Member]
Noninterest income
Total OTTI losses recorded on debt securities	8	0	59	14
Total recorded as part of gross realized losses	6	5	58	23
Total losses recognized in OCI as non-credit-related impairment	$ 2	$ (5)	$ 1	$ (9)

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Wells Fargo net income	$ 4,610	$ 6,007	$ 16,676	$ 16,329
Debt securities:
Net unrealized gains (losses) arising during the period	652	(1,468)	5,192	(5,528)
Reclassification of net losses to net income	76	51	34	168
Derivative and hedging activities:
Net unrealized gains (losses) arising during the period	10	(24)	32	(416)
Reclassification of net losses to net income	75	79	233	216
Defined benefit plans adjustments:
Net actuarial and prior service gains (losses) arising during the period	0	0	(4)	6
Amortization of net actuarial loss, settlements and other to net income	33	29	101	90
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period	(53)	(9)	3	(94)
Other comprehensive income (loss), before tax	793	(1,342)	5,591	(5,558)
Income tax benefit (expense) related to other comprehensive income	(208)	330	(1,375)	1,346
Other comprehensive income (loss), net of tax	585	(1,012)	4,216	(4,212)
Less: Other comprehensive loss from noncontrolling interests	0	0	0	(1)
Wells Fargo other comprehensive income (loss), net of tax	585	(1,012)	4,216	(4,211)
Wells Fargo comprehensive income	5,195	4,995	20,892	12,118
Comprehensive income from noncontrolling interests	202	79	441	392
Total comprehensive income	$ 5,397	$ 5,074	$ 21,333	$ 12,510

Consolidated Balance Sheet (Una

Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks		$ 22,401	$ 23,551
Interest-earning deposits with banks		126,330	149,736
Total cash, cash equivalents, and restricted cash		148,731	173,287
Federal funds sold and securities purchased under resale agreements		103,051	80,207
Debt securities:
Trading, at fair value		79,113	69,989
Available-for-sale, at fair value		271,236	269,912
Held-to-maturity, at cost (fair value $156,279 and $142,115)		153,179	144,788
Loans (includes $185 and $244 carried at fair value) (1)	[1]	954,915	953,110
Allowance for loan losses		(9,715)	(9,775)
Net loans		945,200	943,335
Mortgage servicing rights:
Measured at fair value		11,072	14,649
Amortized		1,397	1,443
Premises and equipment, net		9,315	8,920
Goodwill		26,388	26,418
Derivative assets		14,680	10,770
Equity securities (includes $38,368 and $29,556 carried at fair value) (1)	[1]	63,884	55,148
Other assets		89,724	79,850
Total assets (2)	[2]	1,943,950	1,895,883
Liabilities
Noninterest-bearing deposits		355,259	349,534
Interest-bearing deposits		953,236	936,636
Total deposits		1,308,495	1,286,170
Short-term borrowings		123,908	105,787
Derivative liabilities		9,948	8,499
Accrued expenses and other liabilities		76,532	69,317
Long-term debt		230,651	229,044
Total liabilities (3)	[3]	1,749,534	1,698,817
Wells Fargo stockholders’ equity:
Preferred stock		21,549	23,214
Common stock – $1-2/3 par value, authorized 9,000,000,000 shares; issued 5,481,811,474 shares		9,136	9,136
Additional paid-in capital		60,866	60,685
Retained earnings		166,320	158,163
Cumulative other comprehensive income (loss)		(1,639)	(6,336)
Treasury stock – 1,212,669,670 shares and 900,557,866 shares		(61,785)	(47,194)
Unearned ESOP shares		(1,143)	(1,502)
Total Wells Fargo stockholders’ equity		193,304	196,166
Noncontrolling interests		1,112	900
Total equity		194,416	197,066
Total liabilities and equity		1,943,950	1,895,883
Mortgage loans [Member]
Debt securities:
Loans held for sale	[1]	25,448	15,126
Loans and finance receivables, excluding mortgage receivable [Member]
Debt securities:
Loans held for sale	[1]	$ 1,532	$ 2,041
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.
[2]	(2) Our consolidated assets at September 30, 2019 , and December 31, 2018 , 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, $10 million and $139 million ; Interest-earning deposits with banks, $118 million and $8 million ; Debt securities, $61 million and $45 million ; Net loans, $13.1 billion and $13.6 billion ; Equity securities, $100 million and $85 million ; Other assets, $214 million and $221 million ; and Total assets, $13.6 billion and $14.1 billion , respectively.
[3]	(3) Our consolidated liabilities at September 30, 2019 , and December 31, 2018 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Accrued expenses and other liabilities, $202 million and $191 million ; Long-term debt, $722 million and $816 million ; and Total liabilities, $924 million and $1.0 billion , respectively.

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Assets
Held-to-maturity, at fair value		$ 156,279	$ 142,115
Equity securities, carried at fair value		38,368	29,556
Cash and due from banks		22,401	23,551
Interest-earning deposits with banks		126,330	149,736
Net loans		945,200	943,335
Equity securities (includes $38,368 and $29,556 carried at fair value) (1)	[1]	63,884	55,148
Other assets		89,724	79,850
Assets	[2]	1,943,950	1,895,883
Liabilities
Derivative liabilities		9,948	8,499
Accrued expenses and other liabilities		76,532	69,317
Long-term debt		230,651	229,044
Liabilities	[3]	$ 1,749,534	$ 1,698,817
Wells Fargo stockholders’ equity:
Common stock, par value		$ 1.666602371	$ 1.666602371
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		1,212,669,670	900,557,866
VIEs that we consolidate [Member]
Assets
Cash and due from banks		$ 10	$ 139
Interest-earning deposits with banks		118	8
Debt securities		61	45
Net loans		13,100	13,600
Equity securities (includes $38,368 and $29,556 carried at fair value) (1)		100	85
Other assets		214	221
Assets		13,637	14,062
Liabilities
Derivative liabilities		0	0
Accrued expenses and other liabilities		202	191
Long-term debt		722	816
Liabilities		924	1,007
Fair value option election [Member]
Assets
Mortgage loans held for sale, carried at fair value		16,945	11,771
Loans held for sale, carried at fair value		1,501	1,469
Loans, carried at fair value		$ 185	$ 244
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.
[2]	(2) Our consolidated assets at September 30, 2019 , and December 31, 2018 , 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, $10 million and $139 million ; Interest-earning deposits with banks, $118 million and $8 million ; Debt securities, $61 million and $45 million ; Net loans, $13.1 billion and $13.6 billion ; Equity securities, $100 million and $85 million ; Other assets, $214 million and $221 million ; and Total assets, $13.6 billion and $14.1 billion , respectively.
[3]	(3) Our consolidated liabilities at September 30, 2019 , and December 31, 2018 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Accrued expenses and other liabilities, $202 million and $191 million ; Long-term debt, $722 million and $816 million ; and Total liabilities, $924 million and $1.0 billion , respectively.

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity (Unaudited) - USD ($) $ in Millions		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 ESOP Shares [Member]	Noncontrolling interests [Member]
Stockholders' Equity Period Increase (Decrease)
Cumulative effect of new accounting principle | Accounting Standards Update (ASU) 2016-01; ASU 2016-04; ASU 2016-16 and ASU 2014-09 [Member]	[1]	$ (24)	$ (24)				$ 94	$ (118)
Beginning balance, adjusted balance		208,055	206,912	$ 25,358	$ 9,136	$ 60,893	145,357	(2,262)	$ (29,892)	$ (1,678)	$ 1,143
Beginning balance, shares at Dec. 31, 2017				11,677,235	4,891,616,628
Balance, beginning of period at Dec. 31, 2017		208,079	206,936	$ 25,358	$ 9,136	60,893	145,263	(2,144)	(29,892)	(1,678)	1,143
Stockholders' Equity Period Increase (Decrease)
Adoption of accounting standard | Accounting Standards Update 2018-02 [Member]	[2]	0	0				400	(400)
Net income		16,329	16,329				16,329
Net income attributable to noncontrolling interests		(393)									393
Net income		16,722
Other comprehensive income (loss) attributable to parent, net of tax		(4,211)	(4,211)					(4,211)
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		1									(1)
Other comprehensive income (loss), net of tax		(4,212)						(4,612)
Noncontrolling interests, adjustments to additional paid in capital			7			7
Noncontrolling interests											(597)
Total change in noncontrolling interests		(590)
Common stock issued		1,437	1,437			(53)	(231)		1,721
Common stock, shares issued					34,391,135
Common stock repurchased		(13,334)	(13,334)			0			(13,334)
Common stock repurchased, shares					(232,826,228)
Preferred stock redeemed, value	[3]	(2,150)	(2,150)	$ (1,995)			(155)
Preferred stock redeemed, shares	[3]			(2,150,375)
Preferred stock issued to ESOP		0	0	$ 1,100		43				(1,143)
Preferred stock issued to ESOP, shares				1,100,000
Preferred stock released by ESOP		981	981			(60)				1,041
Preferred stock converted to common shares		0	0	$ (981)		33			948
Preferred stock converted to common shares, shares				(981,508)	18,379,511
Common stock warrant repurchased/exercised		(194)	(194)			(194)
Preferred stock issued		0	0			0
Common stock dividends		(5,873)	(5,873)			48	(5,921)
Preferred stock dividends		(1,203)	(1,203)				(1,203)
Stock incentive compensation expense		897	897			897
Net change in deferred compensation and related plans		(857)	(857)			(876)			19
Net change		(8,376)	(8,171)	$ (1,876)	$ 0	(155)	9,219	(4,611)	(10,646)	(102)	(205)
Net change, shares				(2,031,883)	(180,055,582)
Balance, end of period at Sep. 30, 2018		199,679	198,741	$ 23,482	$ 9,136	60,738	154,576	(6,873)	(40,538)	(1,780)	938
Ending balance, shares at Sep. 30, 2018				9,645,352	4,711,561,046
Beginning balance, shares at Jun. 30, 2018				12,055,984	4,849,067,854
Balance, beginning of period at Jun. 30, 2018		206,069	205,188	$ 25,737	$ 9,136	59,644	150,803	(5,461)	(32,620)	(2,051)	881
Stockholders' Equity Period Increase (Decrease)
Adoption of accounting standard | Accounting Standards Update 2018-02 [Member]	[4]	0	0				400	(400)
Net income		6,007	6,007				6,007
Net income attributable to noncontrolling interests		(79)									79
Net income		6,086
Other comprehensive income (loss) attributable to parent, net of tax		(1,012)	(1,012)					(1,012)
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		0									0
Other comprehensive income (loss), net of tax		(1,012)						(1,412)
Noncontrolling interests, adjustments to additional paid in capital			0			0
Noncontrolling interests											(22)
Total change in noncontrolling interests		(22)
Common stock issued		156	156			(58)	0		214
Common stock, shares issued					4,131,347
Common stock repurchased		(7,382)	(7,382)			1,000			(8,382)
Common stock repurchased, shares					(146,487,043)
Preferred stock redeemed, value	[5]	(2,150)	(2,150)	$ (1,995)			(155)
Preferred stock redeemed, shares	[5]			(2,150,375)
Preferred stock issued to ESOP		0	0			0				0
Preferred stock released by ESOP		260	260			(11)				271
Preferred stock converted to common shares		0	0	$ (260)		6			254
Preferred stock converted to common shares, shares				(260,257)	4,848,888
Common stock warrant repurchased/exercised		(36)	(36)			(36)
Preferred stock issued		0	0			0
Common stock dividends		(2,062)	(2,062)			18	(2,080)
Preferred stock dividends		(399)	(399)				(399)
Stock incentive compensation expense		202	202			202
Net change in deferred compensation and related plans		(31)	(31)			(27)			(4)
Net change		(6,390)	(6,447)	$ (2,255)	$ 0	1,094	3,773	(1,412)	(7,918)	271	57
Net change, shares				(2,410,632)	(137,506,808)
Balance, end of period at Sep. 30, 2018		199,679	198,741	$ 23,482	$ 9,136	60,738	154,576	(6,873)	(40,538)	(1,780)	938
Ending balance, shares at Sep. 30, 2018				9,645,352	4,711,561,046
Stockholders' Equity Period Increase (Decrease)
Cumulative effect of new accounting principle | Accounting Standards Update 2016-02 and Accounting Standards Update 2017-08 [Member]	[6]	(11)	(11)				(492)	481
Beginning balance, adjusted balance		197,055	196,155	$ 23,214	$ 9,136	60,685	157,671	(5,855)	(47,194)	(1,502)	900
Beginning balance, shares at Dec. 31, 2018				9,377,216	4,581,253,608
Balance, beginning of period at Dec. 31, 2018		197,066	196,166	$ 23,214	$ 9,136	60,685	158,163	(6,336)	(47,194)	(1,502)	900
Stockholders' Equity Period Increase (Decrease)
Net income		16,676	16,676				16,676
Net income attributable to noncontrolling interests		(441)									441
Net income		17,117
Other comprehensive income (loss) attributable to parent, net of tax		4,216	4,216					4,216
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		0									0
Other comprehensive income (loss), net of tax		4,216						4,216
Noncontrolling interests, adjustments to additional paid in capital			0			0
Noncontrolling interests											(229)
Total change in noncontrolling interests		(229)
Common stock issued		1,816	1,816			(8)	(382)		2,206
Common stock, shares issued					42,384,469
Common stock repurchased		(17,166)	(17,166)			0			(17,166)
Common stock repurchased, shares					(361,315,717)
Preferred stock redeemed, value	[7]	(1,550)	(1,550)	$ (1,330)			(220)
Preferred stock redeemed, shares	[7]			(1,550,000)
Preferred stock issued to ESOP		0	0	$ 0		0				0
Preferred stock issued to ESOP, shares				0
Preferred stock released by ESOP		335	335			(24)				359
Preferred stock converted to common shares		0	0	$ (335)		(16)			351
Preferred stock converted to common shares, shares				(335,047)	6,819,444
Common stock warrant repurchased/exercised		0	0			0
Preferred stock issued		0	0			0
Common stock dividends		(6,299)	(6,299)			62	(6,361)
Preferred stock dividends		(1,064)	(1,064)				(1,064)
Stock incentive compensation expense		1,053	1,053			1,053
Net change in deferred compensation and related plans		(868)	(868)			(886)			18
Net change		(2,639)	(2,851)	$ (1,665)	$ 0	181	8,649	4,216	(14,591)	359	212
Net change, shares				(1,885,047)	(312,111,804)
Balance, end of period at Sep. 30, 2019		194,416	193,304	$ 21,549	$ 9,136	60,866	166,320	(1,639)	(61,785)	(1,143)	1,112
Ending balance, shares at Sep. 30, 2019				7,492,169	4,269,141,804
Beginning balance, shares at Jun. 30, 2019				9,184,169	4,419,591,197
Balance, beginning of period at Jun. 30, 2019		200,037	199,042	$ 23,021	$ 9,136	60,625	164,551	(2,224)	(54,775)	(1,292)	995
Stockholders' Equity Period Increase (Decrease)
Net income		4,610	4,610				4,610
Net income attributable to noncontrolling interests		(202)									202
Net income		4,812
Other comprehensive income (loss) attributable to parent, net of tax		585	585					585
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		0									0
Other comprehensive income (loss), net of tax		585						585
Noncontrolling interests, adjustments to additional paid in capital			0			0
Noncontrolling interests											(85)
Total change in noncontrolling interests		(85)
Common stock issued		278	278			(6)	(15)		299
Common stock, shares issued					5,834,645
Common stock repurchased		(7,448)	(7,448)			0			(7,448)
Common stock repurchased, shares					(159,099,263)
Preferred stock redeemed, value	[8]	(1,550)	(1,550)	$ (1,330)			(220)
Preferred stock redeemed, shares	[8]			(1,550,000)
Preferred stock issued to ESOP		0	0			0				0
Preferred stock released by ESOP		142	142			(7)				149
Preferred stock converted to common shares		0	0	$ (142)		(1)			143
Preferred stock converted to common shares, shares				(142,000)	2,815,225
Common stock warrant repurchased/exercised		0	0			0
Preferred stock issued		0	0			0
Common stock dividends		(2,230)	(2,230)			23	(2,253)
Preferred stock dividends		(353)	(353)				(353)
Stock incentive compensation expense		262	262			262
Net change in deferred compensation and related plans		(34)	(34)			(30)			(4)
Net change		(5,621)	(5,738)	$ (1,472)	$ 0	241	1,769	585	(7,010)	149	117
Net change, shares				(1,692,000)	(150,449,393)
Balance, end of period at Sep. 30, 2019		$ 194,416	$ 193,304	$ 21,549	$ 9,136	$ 60,866	$ 166,320	$ (1,639)	$ (61,785)	$ (1,143)	$ 1,112
Ending balance, shares at Sep. 30, 2019				7,492,169	4,269,141,804
[1]	(3) Effective January 1, 2018, we adopted ASU 2016-04 – Liabilities – Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products, ASU 2016-01 – Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , and ASU 2014-09 – Revenue from Contracts With Customers (Topic 606) and subsequent related Updates .
[2]	(4) Represents the reclassification from other comprehensive income to retained earnings as a result of the adoption of ASU 2018-02 – Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in third quarter 2018.
[3]	(5) Represents the impact of the redemption of preferred stock, series J, in third quarter 2018.
[4]	(2) Represents the reclassification from other comprehensive income to retained earnings as a result of the adoption of ASU 2018-02 – Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in third quarter 2018.
[5]	(3) Represents the impact of the redemption of preferred stock, series J, in third quarter 2018.
[6]	(1) Effective January 1, 2019, we adopted ASU 2016-02 – Leases (Topic 842) and subsequent related Updates, ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . See Note 1 (Summary of Significant Accounting Policies) for more information.
[7]	(2) Represents the impact of the partial redemption of preferred stock, series K, in third quarter 2019.
[8]	(1) Represents the impact of the partial redemption of preferred stock, series K, in third quarter 2019.

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (Unaudited) (Parenthetical) $ in Millions	Sep. 30, 2019USD ($)
Private Forward Repurchase Transaction [Member]
Consolidated Statement of Changes in Equity (Textuals) [Abstract]
Private forward repurchase contract	$ 0

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income before noncontrolling interests	$ 17,117	$ 16,722
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,043	1,223
Changes in fair value of MSRs, MLHFS and LHFS carried at fair value	3,704	(1,057)
Depreciation, amortization and accretion	4,940	4,222
Other net (gains)	(2,888)	(8,919)
Stock-based compensation	1,885	1,859
Originations and purchases of mortgage loans held for sale	(109,609)	(120,006)
Proceeds from sales of and paydowns on mortgage loans held for sale	70,676	90,714
Net change in:
Debt and equity securities, held for trading	17,104	24,709
Loans held for sale	241	(530)
Deferred income taxes	(3,142)	940
Derivative assets and liabilities	(2,397)	315
Other assets	(6,320)	9,738
Other accrued expenses and liabilities	953	1,109
Net cash provided (used) by operating activities	(5,693)	21,039
Net change in:
Federal funds sold and securities purchased under resale agreements	(22,844)	(4,448)
Available-for-sale debt securities:
Proceeds from sales	7,709	7,088
Prepayments and maturities	30,362	28,360
Purchases	(44,460)	(41,495)
Held-to-maturity debt securities:
Paydowns and maturities	9,154	8,509
Purchases	(2,929)	0
Equity securities, not held for trading:
Proceeds from sales and capital returns	4,104	4,481
Purchases	(4,595)	(3,937)
Loans:
Loans originated by banking subsidiaries, net of principal collected	(15,133)	(2,965)
Proceeds from sales (including participations) of loans held for investment	10,416	12,356
Purchases (including participations) of loans	(1,574)	(896)
Principal collected on nonbank entities’ loans	2,990	5,110
Loans originated by nonbank entities	(3,816)	(5,760)
Net cash paid for acquisitions	0	(10)
Proceeds from sales of foreclosed assets and short sales	1,992	2,781
Other, net	1,519	1,317
Net cash provided (used) by investing activities	(27,105)	10,491
Net change in:
Deposits	22,005	(69,371)
Short-term borrowings	18,121	2,195
Long-term debt:
Proceeds from issuance	40,220	31,397
Repayment	(45,940)	(29,419)
Preferred stock:
Redeemed	(1,550)	(2,150)
Cash dividends paid	(1,005)	(1,211)
Common stock:
Proceeds from issuance	356	548
Stock tendered for payment of withholding taxes	(283)	(322)
Repurchased	(17,166)	(13,334)
Cash dividends paid	(6,118)	(5,730)
Net change in noncontrolling interests	(221)	(364)
Other, net	(177)	(193)
Net cash provided (used) by financing activities	8,242	(87,954)
Net change in cash, cash equivalents, and restricted cash	(24,556)	(56,424)
Cash, cash equivalents, and restricted cash at beginning of period	173,287	215,947
Cash, cash equivalents, and restricted cash at end of period	148,731	159,523
Supplemental cash flow disclosures:
Cash paid for interest	14,505	10,108
Cash paid for income taxes	$ 5,248	$ 1,921

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2019
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, trust and investments, mortgage banking, investment banking, retail banking, brokerage, and consumer and commercial finance through banking locations, 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 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2018 ( 2018 Form 10-K). 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, 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 (Note 6 (Loans and Allowance for Credit Losses)); • valuations of residential mortgage servicing rights (MSRs) (Note 10 (Securitizations and Variable Interest Entities) and Note 11 (Mortgage Banking Activities)); • valuations of financial instruments (Note 15 (Derivatives) and Note 16 (Fair Values of Assets and Liabilities)); • liabilities for contingent litigation losses (Note 14 (Legal Actions)); 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 2018 Form 10-K. Accounting Standards Adopted in 2019 In first quarter 2019 , we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2018-16 – Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes • ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities • ASU 2016-02 – Leases (Topic 842) and subsequent related Updates, including early adoption of ASU 2019-01 – Leases (Topic 842): Codification Improvements ASU 2018-16 expands the list of U.S. benchmark interest rates permitted in the application of hedge accounting. The Update adds the OIS rate based on SOFR as a U.S. benchmark interest rate to facilitate the London Interbank Offered Rate (LIBOR) to SOFR transition and provide sufficient lead time for entities to prepare for changes to interest rate risk hedging strategies for both risk management and hedge accounting purposes. The Update is applied prospectively for qualifying new or re-designated hedging relationships entered into on or after adoption date. We adopted the guidance in first quarter 2019. The Update has not had an impact as we have not designated SOFR OIS as a benchmark interest rate in any hedging relationships. ASU 2017-08 changes the interest income recognition model for purchased callable debt securities carried at a premium, as the premium will be amortized to the earliest call date rather than to the contractual maturity date. Accounting for purchased callable debt securities held at a discount does not change, as the discount will continue to accrete to the contractual maturity date. The Update impacted our investments in purchased callable debt securities classified as available-for-sale (AFS) and held-to-maturity (HTM), which primarily consist of debt securities of U.S. states and political subdivisions. We adopted the Update in first quarter 2019 and recorded a cumulative-effect adjustment as of January 1, 2019, that decreased total stockholders’ equity by $111 million . Retained earnings was reduced by $592 million which reflects both the incremental premium amortization under the new guidance from the acquisition date of our impacted AFS and HTM debt securities through the date of adoption and the fact that the incremental premium amortization is not deductible for federal income tax purposes. Other comprehensive income (OCI) was increased by $481 million which reflects the corresponding adjustment to the adoption date unrealized gain or loss of impacted AFS debt securities. Going forward, interest income recognized prior to the call date will be reduced because the premium will be amortized over a shorter period. ASU 2016-02 modifies the guidance used by lessors and lessees to account for leasing transactions. For our transition to the new guidance, we elected several available practical expedients, including to not reassess the classification of our existing leases, any initial direct costs associated with our leases, or whether any existing contracts are or contain leases. In addition, we elected not to provide a comparative presentation for 2018 and 2017 financial statements. We adopted the Update in first quarter 2019 and recorded a cumulative-effect adjustment that increased retained earnings by $100 million related to deferred gains on our prior sale-leaseback transactions. We also recognized operating lease right-of-use (ROU) assets and liabilities, substantially all of which relate to our leasing of real estate as a lessee, of $4.9 billion and $5.6 billion , respectively. Leasing Activity AS LESSOR We lease equipment to our customers under financing or operating leases. Financing leases are presented in loans and are recorded at the discounted amounts of lease payments receivable plus the estimated residual value of the leased asset. Leveraged leases, which are a form of financing leases, are reduced by related non-recourse debt from third-party investors. Lease payments receivable reflect contractual lease payments adjusted for renewal or termination options that we believe the customer is reasonably certain to exercise. The residual value reflects our best estimate of the expected sales price for the equipment at lease termination based on sales history adjusted for recent trends in the expected exit markets. Many of our leases allow the customer to extend the lease at prevailing market terms or purchase the asset for fair value at lease termination. Our allowance for loan losses for financing leases considers both the collectability of the lease payments receivable as well as the estimated residual value of the leased asset. We typically purchase residual value insurance on our financing leases so that our risk of loss at lease termination will be less than 10% of the initial value of the lease. Our risk to declines in residual values is further mitigated by the diversity of leased assets in our lease portfolio. In addition, we have several channels for re-leasing or marketing those assets. In connection with a lease, we may finance the customer’s purchase of other products or services from the equipment vendor and allocate the contract consideration between the use of the asset and the purchase of those products or services based on information obtained from the vendor. Amounts allocated to financing of vendor products or services are reported in loans as commercial and industrial loans, rather than as lease financing. Our primary income from financing leases is interest income recognized using the effective interest method. Variable lease revenues, such as reimbursement for property taxes associated with the leased asset, are included in lease income within noninterest income. Operating lease assets are presented in other assets, net of accumulated depreciation. Periodic depreciation expense is recorded on a straight-line basis to the estimated residual value over the estimated useful life of the leased asset. On a periodic basis, operating lease assets are reviewed for impairment and impairment loss is recognized if the carrying amount of operating lease assets exceeds fair value and is not recoverable. The carrying amount of leased assets is deemed not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the lease payments and the estimated residual value upon the eventual disposition of the equipment. Depreciation of leased assets and impairment loss are presented in operating leases expense within other noninterest expense. Operating lease rental income for leased assets is recognized in lease income within noninterest income on a straight-line basis over the lease term. Variable revenues on operating leases include reimbursements of costs, including property taxes, which fluctuate over time, as well as rental revenue based on usage. For leases of railcars, revenue for maintenance services provided under the lease is recognized in lease income. We elected to exclude from revenues and expenses any sales tax incurred on lease payments which are reimbursed by the lessee. Substantially all of our leased assets are protected against casualty loss through third party insurance. AS LESSEE We enter into lease agreements to obtain the right to use assets for our business operations, substantially all of which are real estate. Lease liabilities and ROU assets are recognized when we enter into operating or financing leases and represent our obligations and rights to use these assets over the period of the leases and may be re-measured for certain modifications, resolution of certain contingencies involving variable consideration, or our exercise of options (renewal, extension, or termination) under the lease. Operating lease liabilities include fixed and in-substance fixed payments for the contractual duration of the lease, adjusted for renewals or terminations which were considered probable of exercise when measured. The lease payments are discounted using a rate determined when the lease is recognized. As we typically do not know the discount rate implicit in the lease, we estimate a discount rate that we believe approximates a collateralized borrowing rate for the estimated duration of the lease. The discount rate is updated when re-measurement events occur. The related operating lease ROU assets may differ from operating lease liabilities due to initial direct costs, deferred or prepaid lease payments and lease incentives. We present operating lease liabilities in accrued expenses and other liabilities and the related operating lease ROU assets in other assets. The amortization of operating lease ROU assets and the accretion of operating lease liabilities are reported together as fixed lease expense and are included in net occupancy expense within noninterest expense. The fixed lease expense is recognized on a straight-line basis over the life of the lease. Some of our operating leases include variable lease payments which are periodic adjustments of our payments for the use of the asset based on changes in factors such as consumer price indices, fair market value, tax rates imposed by taxing authorities, or lessor cost of insurance. To the extent not included in operating lease liabilities and operating lease ROU assets, these variable lease payments are recognized as incurred in net occupancy expense within noninterest expense. For substantially all of our leased assets, we account for consideration paid under the contract for maintenance or other services as lease payments. In addition, for certain asset classes, we have elected to exclude leases with original terms of less than one year from the operating lease ROU assets and lease liabilities. The related short-term lease expense is included in net occupancy expense. Finance lease (formerly capital lease) liabilities are presented in long-term debt and the associated finance ROU assets are presented in premises and equipment. Share Repurchases From time to time we may enter into private forward repurchase contracts, written repurchase plans pursuant to Rule 10b5-1 of the Securities Exchange Act of 1934, or a combination of the two to complement our open-market common stock repurchase strategies. The stock repurchase transactions allow us to manage our share repurchases in a manner consistent with our capital plans submitted annually under the Comprehensive Capital Analysis and Review (CCAR) and to provide an economic benefit to the Company. Our payments to the counterparties for the private forward repurchase 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 capital plans, which contemplate a fixed dollar amount available per quarter for share repurchases pursuant to the Board of Governors of the Federal Reserve System (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. Our total number of outstanding shares of common stock is not reduced until settlement of the private share repurchase contract. We did not enter into any private forward repurchase contracts in third quarter 2019 and we had no unsettled private share repurchase contracts at September 30, 2019 . Under a Rule 10b5-1 repurchase plan, payments and receipt of repurchased shares settle on the same day and the shares repurchased reduce the total number of outstanding shares of common stock upon the settlement of each trade under the plan. Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.1 . Table 1.1: Supplemental Cash Flow Information Nine months ended September 30, (in millions) 2019 2018 Trading debt securities retained from securitization of MLHFS $ 31,517 28,761 Transfers from loans to MLHFS 5,409 4,456 Transfers from loans to LHFS 117 2,542 Transfers from available-for-sale debt securities to held-to-maturity debt securities 13,833 13,372 Operating lease ROU assets acquired with operating lease liabilities (1) 5,644 — (1) The nine months ended September 30, 2019 , balance includes $4.9 billion from adoption of ASU 2016-02 – Leases (Topic 842) and $744 million attributable to new leases and changes from modified leases. Subsequent Events We have evaluated the effects of events that have occurred subsequent to September 30, 2019 , and, except as disclosed elsewhere in the footnotes, there have been no material events that would require recognition in our third quarter 2019 consolidated financial statements or disclosure in the Notes to the consolidated financial statements.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2019
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. We completed no acquisitions during the first nine months of 2019 and had no business combinations pending as of September 30, 2019 . We closed the previously announced sale of our Institutional Retirement and Trust (IRT) business on July 1, 2019 , and recognized a pre-tax gain of $1.1 billion , which was reflected in our third quarter 2019 net income within other noninterest income. We will continue to administer client assets at the direction of the buyer for up to 24 months from the closing date pursuant to a transition services agreement. The buyer will receive post-closing revenue from the client assets and will pay us a fee for certain costs that we incur to administer the client assets during the transition period. The transition services fee will be recognized as other noninterest income, and the expenses we incur will be recognized in the same manner as they were prior to the close of the sale. Transition period revenue is expected to approximate transition period expenses and is subject to downward adjustment as client assets transition to the buyer's platform. No IRT client assets were transitioned to the buyer's platform as of September 30, 2019. At September 30, 2019, we had assets under management (AUM) and assets under administration (AUA) associated with the IRT business of $21 billion and $912 billion , respectively. We closed the previously announced sale of our Eastdil Secured (Eastdil) business on October 1, 2019 , and we recognized a pre-tax gain of approximately $360 million , which will be reflected in our fourth quarter 2019 net income.

Cash, Loan and Dividend Restric

Cash, Loan and Dividend Restrictions	9 Months Ended
	Sep. 30, 2019
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Cash, Loan and Dividend Restrictions	Note 3: Cash, Loan and Dividend Restrictions Cash and cash equivalents may be restricted as to usage or withdrawal. FRB regulations require that each of our subsidiary banks maintain reserve balances on deposit with the Federal Reserve Banks. Table 3.1 provides a summary of restrictions on cash equivalents in addition to the FRB reserve cash balance requirements . Table 3.1: Nature of Restrictions on Cash Equivalents (in millions) Sep 30, Dec 31, Average required reserve balance for FRB (1) $ 11,230 12,428 Reserve balance for non-U.S. central banks 247 517 Segregated for benefit of brokerage customers under federal and other brokerage regulations 625 1,135 Related to consolidated variable interest entities (VIEs) that can only be used to settle liabilities of VIEs 128 147 (1) Represents average for the first nine months of 2019 and for the year ended December 31, 2018 . We have a state-chartered subsidiary bank that is subject to state regulations that limit dividends. Under these provisions and regulatory limitations, our national and state-chartered subsidiary banks could have declared additional dividends of $6.0 billion at September 30, 2019 , without obtaining prior regulatory approval. Our nonbank subsidiaries are also limited by certain federal and state statutory provisions and regulations covering the amount of dividends that may be paid in any given year. I n addition, under a Support Agreement dated June 28, 2017, as amended and restated on June 26, 2019, among Wells Fargo & Company, the parent holding company (the “Parent”), WFC Holdings, LLC, an intermediate holding company and subsidiary of the Parent (the “IHC”), Wells Fargo Bank, N.A., Wells Fargo Securities, LLC, Wells Fargo Clearing Services, LLC, and certain other direct and indirect subsidiaries of the Parent designated as material entities for resolution planning purposes or identified as related support entities in our resolution plan, the IHC may be restricted from making dividend payments to the Parent if certain liquidity and/or capital metrics fall below defined triggers or if the Parent's board of directors authorizes it to file a case under the U.S. Bankruptcy Code. Based on retained earnings at September 30, 2019 , our nonbank subsidiaries could have declared additional dividends of $25.7 billion at September 30, 2019 , without obtaining prior regulatory approval. For additional information see Note 3 ( Cash, Loan and Dividend Restrictions) in our 2018 Form 10-K. The FRB’s Capital Plan Rule (codified at 12 CFR 225.8 of Regulation Y) establishes capital planning and prior notice and approval requirements for capital distributions including dividends by certain large bank holding companies. The FRB has also published guidance regarding its supervisory expectations for capital planning, including capital policies regarding the process relating to common stock dividend and repurchase decisions in the FRB’s SR Letter 15-18. The effect of this guidance is to require the approval of the FRB (or specifically under the Capital Plan Rule, a notice of non-objection) for the repurchase or redemption of common or perpetual preferred stock as well as to raise the per share quarterly dividend from its current level of $0.51 per share as declared by the Company’s Board of Directors on October 22, 2019 , payable on December 1, 2019 .

Trading Activities

Trading Activities	9 Months Ended
	Sep. 30, 2019
Trading Activities [Abstract]
Trading Activities	Note 4: Trading Activities Table 4.1 presents a summary of our trading assets and liabilities measured at fair value through earnings. Table 4.1: Trading Assets and Liabilities Sep 30, Dec 31, (in millions) 2019 2018 Trading assets: Debt securities $ 79,113 69,989 Equity securities 24,436 19,449 Loans held for sale 1,501 1,469 Gross trading derivative assets 39,926 29,216 Netting (1) (26,414 ) (19,807 ) Total trading derivative assets 13,512 9,409 Total trading assets 118,562 100,316 Trading liabilities: Short sale 18,290 19,720 Gross trading derivative liabilities 38,308 28,717 Netting (1) (29,708 ) (21,178 ) Total trading derivative liabilities 8,600 7,539 Total trading liabilities $ 26,890 27,259 (1) Represents balance sheet netting for trading derivative asset and liability balances, and trading portfolio level counterparty valuation adjustments. Table 4.2 provides a summary of the net interest income earned from trading securities, and net gains and losses due to the realized and unrealized gains and losses from trading activities. Net interest income also includes dividend income on trading securities and dividend expense on trading securities we have sold, but not yet purchased. Table 4.2: Net Interest Income and Net Gains (Losses) on Trading Activities Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Interest income: Debt securities $ 790 723 2,323 2,043 Equity securities 157 178 415 447 Loans held for sale 20 20 63 43 Total interest income 967 921 2,801 2,533 Less: Interest expense 129 157 392 429 Net interest income 838 764 2,409 2,104 Net gains (losses) from trading activities (1): Debt securities 451 (369 ) 1,540 (1,008 ) Equity securities (242 ) 1,129 3,061 25 Loans held for sale 5 3 15 18 Derivatives (2) 62 (605 ) (3,754 ) 1,557 Total net gains from trading activities 276 158 862 592 Total trading-related net interest and noninterest income $ 1,114 922 3,271 2,696 (1) Represents realized gains (losses) and unrealized gains (losses) due to changes in fair value of our trading positions. (2) Excludes economic hedging of mortgage banking and asset/liability management activities, for which hedge results (realized and unrealized) are reported with the respective hedged activities.

AFS and HTM Debt Securities

AFS and HTM Debt Securities	9 Months Ended
	Sep. 30, 2019
AFS and HTM Debt Securities [Abstract]
AFS and HTM Debt Securities	Note 5: Available-for-Sale and Held-to-Maturity Debt Securities Table 5.1 provides the amortized cost and fair value by major categories of available-for-sale debt securities, which are carried at fair value, and held-to-maturity debt securities, which are carried at amortized cost. The net unrealized gains (losses) for available-for-sale debt securities are reported on an after-tax basis as a component of cumulative OCI. Information on debt securities held for trading is included in Note 4 (Trading Activities). Table 5.1: Amortized Cost and Fair Value (in millions) Amortized cost Gross unrealized gains Gross unrealized losses Fair value September 30, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 16,569 2 (22 ) 16,549 Securities of U.S. states and political subdivisions (1) 39,792 785 (74 ) 40,503 Mortgage-backed securities: Federal agencies 165,382 2,315 (162 ) 167,535 Residential 839 14 — 853 Commercial 4,190 41 (5 ) 4,226 Total mortgage-backed securities 170,411 2,370 (167 ) 172,614 Corporate debt securities 5,739 198 (44 ) 5,893 Collateralized loan and other debt obligations (2) 30,968 147 (105 ) 31,010 Other (3) 4,616 65 (14 ) 4,667 Total available-for-sale debt securities 268,095 3,567 (426 ) 271,236 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 44,774 690 (1 ) 45,463 Securities of U.S. states and political subdivisions 12,719 308 (5 ) 13,022 Federal agency and other mortgage-backed securities (4) 95,637 2,120 (12 ) 97,745 Collateralized loan obligations 49 — — 49 Total held-to-maturity debt securities 153,179 3,118 (18 ) 156,279 Total $ 421,274 6,685 (444 ) 427,515 December 31, 2018 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 13,451 3 (106 ) 13,348 Securities of U.S. states and political subdivisions (1) 48,994 716 (446 ) 49,264 Mortgage-backed securities: Federal agencies 155,974 369 (3,140 ) 153,203 Residential 2,638 142 (5 ) 2,775 Commercial 4,207 40 (22 ) 4,225 Total mortgage-backed securities 162,819 551 (3,167 ) 160,203 Corporate debt securities 6,230 131 (90 ) 6,271 Collateralized loan and other debt obligations (2) 35,581 158 (396 ) 35,343 Other (3) 5,396 100 (13 ) 5,483 Total available-for-sale debt securities 272,471 1,659 (4,218 ) 269,912 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 44,751 4 (415 ) 44,340 Securities of U.S. states and political subdivisions 6,286 30 (116 ) 6,200 Federal agency and other mortgage-backed securities (4) 93,685 112 (2,288 ) 91,509 Collateralized loan obligations 66 — — 66 Total held-to-maturity debt securities 144,788 146 (2,819 ) 142,115 Total $ 417,259 1,805 (7,037 ) 412,027 (1) Includes investments in tax-exempt preferred debt securities issued by investment funds or trusts that predominantly invest in tax-exempt municipal securities. The cost basis and fair value of these types of securities was $5.8 billion each at September 30, 2019 , and $6.3 billion each at December 31, 2018 . (2) Includes collateralized debt obligations (CDOs) with a cost basis and fair value of $494 million and $609 million , respectively, at September 30, 2019 , and $662 million and $800 million , respectively, at December 31, 2018 . (3) Largely includes asset-backed securities collateralized by student loans. (4) Predominantly consists of federal agency mortgage-backed securities at both September 30, 2019 and December 31, 2018 . Gross Unrealized Losses and Fair Value Table 5.2 shows the gross unrealized losses and fair value of available-for-sale and held-to-maturity debt securities by length of time those individual securities in each category have been in a continuous loss position. Debt securities on which we have taken credit-related other-than-temporary impairment (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. Table 5.2: Gross Unrealized Losses and Fair Value Less than 12 months 12 months or more Total (in millions) Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value September 30, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (17 ) 11,776 (5 ) 3,475 (22 ) 15,251 Securities of U.S. states and political subdivisions (34 ) 7,352 (40 ) 2,517 (74 ) 9,869 Mortgage-backed securities: Federal agencies (42 ) 12,965 (120 ) 11,668 (162 ) 24,633 Residential — — — — — — Commercial (3 ) 728 (2 ) 214 (5 ) 942 Total mortgage-backed securities (45 ) 13,693 (122 ) 11,882 (167 ) 25,575 Corporate debt securities (17 ) 581 (27 ) 253 (44 ) 834 Collateralized loan and other debt obligations (42 ) 10,919 (63 ) 9,334 (105 ) 20,253 Other (6 ) 1,347 (8 ) 236 (14 ) 1,583 Total available-for-sale debt securities (161 ) 45,668 (265 ) 27,697 (426 ) 73,365 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (1 ) 804 — — (1 ) 804 Securities of U.S. states and political subdivisions (1 ) 200 (4 ) 72 (5 ) 272 Federal agency and other mortgage-backed securities (10 ) 2,763 (2 ) 31 (12 ) 2,794 Collateralized loan obligations — — — — — — Total held-to-maturity debt securities (12 ) 3,767 (6 ) 103 (18 ) 3,870 Total $ (173 ) 49,435 (271 ) 27,800 (444 ) 77,235 December 31, 2018 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (1 ) 498 (105 ) 6,204 (106 ) 6,702 Securities of U.S. states and political subdivisions (73 ) 9,746 (373 ) 9,017 (446 ) 18,763 Mortgage-backed securities: Federal agencies (42 ) 10,979 (3,098 ) 112,252 (3,140 ) 123,231 Residential (3 ) 398 (2 ) 69 (5 ) 467 Commercial (20 ) 1,972 (2 ) 79 (22 ) 2,051 Total mortgage-backed securities (65 ) 13,349 (3,102 ) 112,400 (3,167 ) 125,749 Corporate debt securities (64 ) 1,965 (26 ) 298 (90 ) 2,263 Collateralized loan and other debt obligations (388 ) 28,306 (8 ) 553 (396 ) 28,859 Other (7 ) 819 (6 ) 159 (13 ) 978 Total available-for-sale debt securities (598 ) 54,683 (3,620 ) 128,631 (4,218 ) 183,314 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (3 ) 895 (412 ) 41,083 (415 ) 41,978 Securities of U.S. states and political subdivisions (4 ) 598 (112 ) 3,992 (116 ) 4,590 Federal agency and other mortgage-backed securities (5 ) 4,635 (2,283 ) 77,741 (2,288 ) 82,376 Collateralized loan obligations — — — — — — Total held-to-maturity debt securities (12 ) 6,128 (2,807 ) 122,816 (2,819 ) 128,944 Total $ (610 ) 60,811 (6,427 ) 251,447 (7,037 ) 312,258 We have assessed each debt security with gross unrealized losses included in the previous table for credit impairment. As part of that assessment we evaluated and concluded that we do not intend to sell any of the debt securities and that it is more likely than not that we will not be required to sell prior to recovery of the amortized cost basis. We evaluate, where necessary, whether credit impairment exists by comparing the present value of the expected cash flows to the debt securities’ amortized cost basis. For descriptions of the factors we consider when analyzing debt securities for impairment, see Note 1 (Summary of Significant Accounting Policies) and Note 5 (Available-for-Sale and Held-to-Maturity Debt Securities) in our 2018 Form 10-K. There were no material changes to our methodologies for assessing impairment in the first nine months of 2019 . Table 5.3 shows the gross unrealized losses and fair value of the available-for-sale and held-to-maturity debt securities 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 debt security. Debt 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, debt securities rated below investment grade, labeled as “speculative grade” by the rating agencies, are considered to be distinctively higher credit risk than investment grade debt securities. We have also included debt securities not rated by S&P or Moody’s in the table below based on our internal credit grade of the debt 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 debt securities categorized as investment grade based on internal credit grades were $8 million and $3.0 billion , respectively, at September 30, 2019 , and $20 million and $5.2 billion , respectively, at December 31, 2018 . If an internal credit grade was not assigned, we categorized the debt security as non-investment grade. Table 5.3: Gross Unrealized Losses and Fair Value by Investment Grade Investment grade Non-investment grade (in millions) Gross unrealized losses Fair value Gross unrealized losses Fair value September 30, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (22 ) 15,251 — — Securities of U.S. states and political subdivisions (70 ) 9,686 (4 ) 183 Mortgage-backed securities: Federal agencies (162 ) 24,633 — — Residential — — — — Commercial (3 ) 858 (2 ) 84 Total mortgage-backed securities (165 ) 25,491 (2 ) 84 Corporate debt securities (7 ) 292 (37 ) 542 Collateralized loan and other debt obligations (105 ) 20,253 — — Other (6 ) 1,202 (8 ) 381 Total available-for-sale debt securities (375 ) 72,175 (51 ) 1,190 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (1 ) 804 — — Securities of U.S. states and political subdivisions (5 ) 272 — — Federal agency and other mortgage-backed securities (8 ) 2,604 (4 ) 190 Collateralized loan obligations — — — — Total held-to-maturity debt securities (14 ) 3,680 (4 ) 190 Total $ (389 ) 75,855 (55 ) 1,380 December 31, 2018 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (106 ) 6,702 — — Securities of U.S. states and political subdivisions (425 ) 18,447 (21 ) 316 Mortgage-backed securities: Federal agencies (3,140 ) 123,231 — — Residential (2 ) 295 (3 ) 172 Commercial (20 ) 1,999 (2 ) 52 Total mortgage-backed securities (3,162 ) 125,525 (5 ) 224 Corporate debt securities (17 ) 791 (73 ) 1,472 Collateralized loan and other debt obligations (396 ) 28,859 — — Other (7 ) 726 (6 ) 252 Total available-for-sale debt securities (4,113 ) 181,050 (105 ) 2,264 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (415 ) 41,978 — — Securities of U.S. states and political subdivisions (116 ) 4,590 — — Federal agency and other mortgage-backed securities (2,278 ) 81,977 (10 ) 399 Collateralized loan obligations — — — — Total held-to-maturity debt securities (2,809 ) 128,545 (10 ) 399 Total $ (6,922 ) 309,595 (115 ) 2,663 Contractual Maturities Table 5.4 shows the fair value and contractual weighted-average yields (taxable-equivalent basis) of available-for-sale debt securities by remaining contractual maturity. Remaining contractual maturities for mortgage-backed securities (MBS) do not consider prepayments. Remaining expected maturities will differ from remaining contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature. Table 5.4: Available-for Sale Debt Securities - Fair Value by Contractual Maturity Remaining contractual maturity Total Within one year After one year through five years After five years through ten years After ten years (in millions) amount Yield Amount Yield Amount Yield Amount Yield Amount Yield September 30, 2019 Available-for-sale debt securities (1): Fair value: Securities of U.S. Treasury and federal agencies $ 16,549 1.92 % $ 10,035 1.74 % $ 6,192 2.21 % $ 47 1.84 % $ 275 2.25 % Securities of U.S. states and political subdivisions 40,503 4.84 2,200 3.01 4,455 3.32 4,240 3.36 29,608 5.42 Mortgage-backed securities: Federal agencies 167,535 3.47 — — 152 3.37 1,543 2.59 165,840 3.48 Residential 853 2.88 — — — — — — 853 2.88 Commercial 4,226 3.57 — — — — 340 3.50 3,886 3.58 Total mortgage-backed securities 172,614 3.47 — — 152 3.37 1,883 2.75 170,579 3.48 Corporate debt securities 5,893 4.95 452 5.86 2,193 4.91 2,629 4.70 619 5.50 Collateralized loan and other debt obligations 31,010 3.64 — — 1 4.66 11,548 3.73 19,461 3.59 Other 4,667 2.82 4 5.10 696 3.49 1,358 1.96 2,609 3.09 Total available-for-sale debt securities at fair value $ 271,236 3.62 % $ 12,691 2.10 % $ 13,689 3.08 % $ 21,705 3.58 % $ 223,151 3.75 % (1) Weighted-average yields displayed by maturity bucket are weighted based on fair value and predominantly represent contractual coupon rates without effect for any related hedging derivatives. Table 5.5 shows the amortized cost and weighted-average yields of held-to-maturity debt securities by contractual maturity. Table 5.5: Held-to-Maturity Debt Securities - Amortized Cost by Contractual Maturity Remaining contractual maturity Total Within one year After one year through five years After five years through ten years After ten years (in millions) amount Yield Amount Yield Amount Yield Amount Yield Amount Yield September 30, 2019 Held-to-maturity debt securities (1): Amortized cost: Securities of U.S. Treasury and federal agencies $ 44,774 2.12 % $ — — % $ 39,530 2.11 % $ 5,244 2.19 % $ — — % Securities of U.S. states and political subdivisions 12,719 4.99 — — 83 6.02 1,756 4.86 10,880 5.00 Federal agency and other mortgage-backed securities 95,637 3.10 — — 15 3.53 — — 95,622 3.10 Collateralized loan obligations 49 3.48 — — — — 49 3.48 — — Total held-to-maturity debt securities at amortized cost $ 153,179 2.97 % $ — — % $ 39,628 2.12 % $ 7,049 2.86 % $ 106,502 3.29 % (1) Weighted-average yields displayed by maturity bucket are weighted based on amortized cost and predominantly represent contractual coupon rates. Table 5.6 shows the fair value of held-to-maturity debt securities by contractual maturity. Table 5.6: Held-to-Maturity Debt Securities - Fair Value by Contractual Maturity Remaining contractual maturity Total Within one year After one year through five years After five years through ten years After ten years (in millions) amount Amount Amount Amount Amount September 30, 2019 Held-to-maturity debt securities: Fair value: Securities of U.S. Treasury and federal agencies $ 45,463 — 40,056 5,407 — Securities of U.S. states and political subdivisions 13,022 — 83 1,825 11,114 Federal agency and other mortgage-backed securities 97,745 — 15 — 97,730 Collateralized loan obligations 49 — — 49 — Total held-to-maturity debt securities at fair value $ 156,279 — 40,154 7,281 108,844 Realized Gains and Losses - Available-for-Sale Debt Securities Table 5.7 shows the gross realized gains and losses on sales and OTTI write-downs related to available-for-sale debt securities. Table 5.7: Realized Gains and Losses Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Gross realized gains $ 21 65 223 139 Gross realized losses (12 ) (3 ) (17 ) (17 ) OTTI write-downs (6 ) (5 ) (58 ) (23 ) Net realized gains from available-for-sale debt securities $ 3 57 148 99 Other-Than-Temporarily Impaired Debt Securities Table 5.8 shows the detail of total OTTI write-downs included in earnings for available-for-sale debt securities. There were no OTTI write-downs on held-to-maturity debt securities during the first nine months of 2019 and 2018 . Table 5.8: Detail of OTTI Write-downs Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Debt securities OTTI write-downs included in earnings: Securities of U.S. states and political subdivisions $ — — 33 2 Mortgage-backed securities: Residential — — — 2 Commercial — 1 17 15 Corporate debt securities 6 — 8 — Other debt securities — 4 — 4 Total debt securities OTTI write-downs included in earnings $ 6 5 58 23 Table 5.9 shows the detail of OTTI write-downs on available-for-sale debt securities included in earnings and the related changes in OCI for the same securities. Table 5.9: OTTI Write-downs Included in Earnings and the Related Changes in OCI Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 OTTI on debt securities Recorded as part of gross realized losses: Credit-related OTTI $ — 5 23 22 Intent-to-sell OTTI 6 — 35 1 Total recorded as part of gross realized losses 6 5 58 23 Changes to OCI for losses (reversal of losses) in non-credit-related OTTI (1): Securities of U.S. states and political subdivisions — — (1 ) (2 ) Residential mortgage-backed securities — — (1 ) (1 ) Commercial mortgage-backed securities 1 (5 ) 2 (6 ) Other debt securities 1 — 1 — Total changes to OCI for non-credit-related OTTI 2 (5 ) 1 (9 ) Total OTTI losses recorded on debt securities $ 8 — 59 14 (1) Represents amounts recorded to OCI for impairment of debt securities, due to factors other than credit, 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 debt securities due to non-credit factors. Table 5.10 presents a rollforward of the OTTI credit loss that has been recognized in earnings as a write-down of available-for-sale debt securities we still own (referred to as “credit-impaired” debt securities) and do not intend to sell. Recognized credit loss 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 loss. Table 5.10: Rollforward of OTTI Credit Loss Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Credit loss recognized, beginning of period $ 216 626 562 742 Additions: For securities with initial credit impairments — — 6 — For securities with previous credit impairments — 5 17 22 Total additions — 5 23 22 Reductions: For securities sold, matured, or intended/required to be sold (22 ) (68 ) (391 ) (199 ) For recoveries of previous credit impairments (1) — — — (2 ) Total reductions (22 ) (68 ) (391 ) (201 ) Credit loss recognized, end of period $ 194 563 194 563 (1) 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.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Allowance for Credit Losses	Note 6: Loans and Allowance for Credit Losses Table 6.1 presents total loans outstanding by portfolio segment and class of financing receivable. Outstanding balances include unearned income, net deferred loan fees or costs, and unamortized discounts and premiums. These amounts were less than 1% of our total loans outstanding at September 30, 2019 , and December 31, 2018 . Table 6.1: Loans Outstanding (in millions) Sep 30, Dec 31, Commercial: Commercial and industrial $ 350,875 350,199 Real estate mortgage 121,936 121,014 Real estate construction 19,921 22,496 Lease financing 19,600 19,696 Total commercial 512,332 513,405 Consumer: Real estate 1-4 family first mortgage 290,604 285,065 Real estate 1-4 family junior lien mortgage 30,838 34,398 Credit card 39,629 39,025 Automobile 46,738 45,069 Other revolving credit and installment 34,774 36,148 Total consumer 442,583 439,705 Total loans $ 954,915 953,110 Our foreign loans are reported by respective class of financing receivable in the table above. Substantially all of our foreign loan portfolio is commercial loans. Table 6.2 presents total commercial foreign loans outstanding by class of financing receivable. Table 6.2: Commercial Foreign Loans Outstanding (in millions) Sep 30, Dec 31, Commercial foreign loans: Commercial and industrial $ 64,418 62,564 Real estate mortgage 7,056 6,731 Real estate construction 1,262 1,011 Lease financing 1,197 1,159 Total commercial foreign loans $ 73,933 71,465 Loan Purchases, Sales, and Transfers Table 6.3 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 fair value. This loan activity also includes participating interests, whereby we receive or transfer a portion of a loan. The table excludes purchased credit-impaired (PCI) loans, loans for which we have elected the fair value option, and government insured/ guaranteed real estate 1-4 family first mortgage loans because their loan activity normally does not impact the allowance for credit losses. Table 6.3: Loan Purchases, Sales, and Transfers 2019 2018 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Purchases $ 571 910 1,481 225 4 229 Sales (433 ) (85 ) (518 ) (438 ) (113 ) (551 ) Transfers (to) from MLHFS/LHFS (25 ) (37 ) (62 ) (21 ) (371 ) (392 ) Nine months ended September 30, Purchases $ 1,570 918 2,488 879 11 890 Sales (1,389 ) (417 ) (1,806 ) (1,192 ) (201 ) (1,393 ) Transfers (to) from MLHFS/LHFS (117 ) (1,889 ) (2,006 ) (541 ) (1,996 ) (2,537 ) 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. We may, as a representative for other lenders, advance funds or provide for the issuance of letters of credit under syndicated loan or letter of credit agreements. Any advances are generally repaid in less than a week and would normally require default of both the customer and another lender to expose us to loss. The unfunded amount of these temporary advance arrangements totaled approximately $74.9 billion at September 30, 2019 . We issue commercial letters of credit to assist customers in purchasing goods or services, typically for international trade. At September 30, 2019 , and December 31, 2018 , we had $1.0 billion and $919 million , respectively, of outstanding issued commercial letters of credit. 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 13 (Guarantees, Pledged Assets and Collateral, and Other Commitments) for additional information on standby letters of credit. 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 not funded. 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. For loans and commitments to lend, we generally require collateral or a guarantee. We may require various types of collateral, including commercial and consumer real estate, automobiles, other short-term liquid assets such as accounts receivable or inventory and long-lived assets, such as equipment and other business assets. Collateral requirements for each loan or commitment may vary based on the loan product and our assessment of a customer’s credit risk according to the specific credit underwriting, including credit terms and structure. The contractual amount of our unfunded credit commitments, including unissued standby and commercial letters of credit, is summarized by portfolio segment and class of financing receivable in Table 6.4 . The table excludes the issued standby and commercial letters of credit and temporary advance arrangements described above. Table 6.4: Unfunded Credit Commitments (in millions) Sep 30, Dec 31, Commercial: Commercial and industrial $ 337,324 330,492 Real estate mortgage 8,125 6,984 Real estate construction 16,695 16,400 Total commercial 362,144 353,876 Consumer: Real estate 1-4 family first mortgage 39,648 29,736 Real estate 1-4 family junior lien mortgage 37,151 37,719 Credit card 114,717 109,840 Other revolving credit and installment 26,178 27,530 Total consumer 217,694 204,825 Total unfunded credit commitments $ 579,838 558,701 Allowance for Credit Losses Table 6.5 presents the allowance for credit losses, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. Table 6.5: Allowance for Credit Losses Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Balance, beginning of period $ 10,603 11,110 10,707 11,960 Provision for credit losses 695 580 2,043 1,223 Interest income on certain impaired loans (1) (34 ) (42 ) (112 ) (128 ) Loan charge-offs: Commercial: Commercial and industrial (209 ) (209 ) (590 ) (507 ) Real estate mortgage (2 ) (9 ) (28 ) (30 ) Real estate construction — — (1 ) — Lease financing (12 ) (15 ) (35 ) (52 ) Total commercial (223 ) (233 ) (654 ) (589 ) Consumer: Real estate 1-4 family first mortgage (31 ) (45 ) (101 ) (141 ) Real estate 1-4 family junior lien mortgage (27 ) (47 ) (90 ) (141 ) Credit card (404 ) (376 ) (1,278 ) (1,185 ) Automobile (156 ) (214 ) (485 ) (730 ) Other revolving credit and installment (168 ) (161 ) (497 ) (505 ) Total consumer (786 ) (843 ) (2,451 ) (2,702 ) Total loan charge-offs (1,009 ) (1,076 ) (3,105 ) (3,291 ) Loan recoveries: Commercial: Commercial and industrial 62 61 151 216 Real estate mortgage 10 10 26 46 Real estate construction 8 2 13 12 Lease financing 4 8 15 18 Total commercial 84 81 205 292 Consumer: Real estate 1-4 family first mortgage 36 70 148 207 Real estate 1-4 family junior lien mortgage 49 56 140 171 Credit card 85 77 258 231 Automobile 80 84 266 279 Other revolving credit and installment 30 28 95 88 Total consumer 280 315 907 976 Total loan recoveries 364 396 1,112 1,268 Net loan charge-offs (645 ) (680 ) (1,993 ) (2,023 ) Other (6 ) (12 ) (32 ) (76 ) Balance, end of period $ 10,613 10,956 10,613 10,956 Components: Allowance for loan losses $ 9,715 10,021 9,715 10,021 Allowance for unfunded credit commitments 898 935 898 935 Allowance for credit losses $ 10,613 10,956 10,613 10,956 Net loan charge-offs (annualized) as a percentage of average total loans 0.27 % 0.29 0.28 0.29 Allowance for loan losses as a percentage of total loans 1.02 1.06 1.02 1.06 Allowance for credit losses as a percentage of total loans 1.11 1.16 1.11 1.16 (1) 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 changes in allowance attributable to the passage of time as interest income. Table 6.6 summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments. Table 6.6: Allowance Activity by Portfolio Segment 2019 2018 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Balance, beginning of period $ 6,298 4,305 10,603 6,711 4,399 11,110 Provision for credit losses 84 611 695 22 558 580 Interest income on certain impaired loans (10 ) (24 ) (34 ) (12 ) (30 ) (42 ) Loan charge-offs (223 ) (786 ) (1,009 ) (233 ) (843 ) (1,076 ) Loan recoveries 84 280 364 81 315 396 Net loan charge-offs (139 ) (506 ) (645 ) (152 ) (528 ) (680 ) Other (3 ) (3 ) (6 ) (1 ) (11 ) (12 ) Balance, end of period $ 6,230 4,383 10,613 6,568 4,388 10,956 Nine months ended September 30, Balance, beginning of period $ 6,417 4,290 10,707 6,632 5,328 11,960 Provision for credit losses 294 1,749 2,043 280 943 1,223 Interest income on certain impaired loans (35 ) (77 ) (112 ) (37 ) (91 ) (128 ) Loan charge-offs (654 ) (2,451 ) (3,105 ) (589 ) (2,702 ) (3,291 ) Loan recoveries 205 907 1,112 292 976 1,268 Net loan charge-offs (449 ) (1,544 ) (1,993 ) (297 ) (1,726 ) (2,023 ) Other 3 (35 ) (32 ) (10 ) (66 ) (76 ) Balance, end of period $ 6,230 4,383 10,613 6,568 4,388 10,956 Table 6.7 disaggregates our allowance for credit losses and recorded investment in loans by impairment methodology. Table 6.7: Allowance by Impairment Methodology Allowance for credit losses Recorded investment in loans (in millions) Commercial Consumer Total Commercial Consumer Total September 30, 2019 Collectively evaluated (1) $ 5,774 3,485 9,259 509,081 431,724 940,805 Individually evaluated (2) 456 898 1,354 3,251 10,252 13,503 PCI (3) — — — — 607 607 Total $ 6,230 4,383 10,613 512,332 442,583 954,915 December 31, 2018 Collectively evaluated (1) $ 5,903 3,361 9,264 510,180 421,574 931,754 Individually evaluated (2) 514 929 1,443 3,221 13,126 16,347 PCI (3) — — — 4 5,005 5,009 Total $ 6,417 4,290 10,707 513,405 439,705 953,110 (1) Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies , and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans. (2) Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables , and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans. (3) 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 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). We obtain FICO scores at loan origination and the scores are generally updated at least quarterly, except in limited circumstances, including compliance with the Fair Credit Reporting Act (FCRA). Generally, the LTV and CLTV indicators are updated in the second month of each quarter, with updates no older than June 30, 2019 . 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. Table 6.8 provides a breakdown of outstanding commercial loans by risk category. Criticized commercial loans at September 30, 2019 , included $2.3 billion on nonaccrual status. For additional information on nonaccrual loans, see Table 6.9 and 6.13. Table 6.8: Commercial Loans by Risk Category (in millions) Commercial and industrial Real estate mortgage Real estate construction Lease financing Total September 30, 2019 By risk category: Pass $ 335,812 118,276 19,720 18,481 492,289 Criticized 15,063 3,660 201 1,119 20,043 Total commercial loans (excluding PCI) 350,875 121,936 19,921 19,600 512,332 Total commercial PCI loans (carrying value) — — — — — Total commercial loans $ 350,875 121,936 19,921 19,600 512,332 December 31, 2018 By risk category: Pass $ 335,412 116,514 22,207 18,671 492,804 Criticized 14,783 4,500 289 1,025 20,597 Total commercial loans (excluding PCI) 350,195 121,014 22,496 19,696 513,401 Total commercial PCI loans (carrying value) 4 — — — 4 Total commercial loans $ 350,199 121,014 22,496 19,696 513,405 Table 6.9 provides past due information for commercial loans, which we monitor as part of our credit risk management practices. Table 6.9: Commercial Loans by Delinquency Status (in millions) Commercial and industrial Real estate mortgage Real estate construction Lease financing Total September 30, 2019 By delinquency status: Current-29 days past due (DPD) and still accruing $ 348,730 120,959 19,847 19,277 508,813 30-89 DPD and still accruing 600 280 42 251 1,173 90+ DPD and still accruing 6 28 — — 34 Nonaccrual loans 1,539 669 32 72 2,312 Total commercial loans (excluding PCI) 350,875 121,936 19,921 19,600 512,332 Total commercial PCI loans (carrying value) — — — — — Total commercial loans $ 350,875 121,936 19,921 19,600 512,332 December 31, 2018 By delinquency status: Current-29 DPD and still accruing $ 348,158 120,176 22,411 19,443 510,188 30-89 DPD and still accruing 508 207 53 163 931 90+ DPD and still accruing 43 51 — — 94 Nonaccrual loans 1,486 580 32 90 2,188 Total commercial loans (excluding PCI) 350,195 121,014 22,496 19,696 513,401 Total commercial PCI loans (carrying value) 4 — — — 4 Total commercial loans $ 350,199 121,014 22,496 19,696 513,405 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. Table 6.10 provides the outstanding balances of our consumer portfolio by delinquency status. Table 6.10: Consumer Loans by Delinquency Status (in millions) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Credit card Automobile Other revolving credit and installment Total September 30, 2019 By delinquency status: Current-29 DPD $ 276,336 30,171 38,632 45,599 34,472 425,210 30-59 DPD 1,173 231 298 824 110 2,636 60-89 DPD 418 114 208 240 86 1,066 90-119 DPD 187 70 188 74 73 592 120-179 DPD 158 73 302 1 20 554 180+ DPD 575 165 1 — 13 754 Government insured/guaranteed loans (1) 10,978 — — — — 10,978 Loans held at fair value 186 — — — — 186 Total consumer loans (excluding PCI) 290,011 30,824 39,629 46,738 34,774 441,976 Total consumer PCI loans (carrying value) (2) 593 14 — — — 607 Total consumer loans $ 290,604 30,838 39,629 46,738 34,774 442,583 December 31, 2018 By delinquency status: Current-29 DPD $ 263,881 33,644 38,008 43,604 35,794 414,931 30-59 DPD 1,411 247 292 1,040 140 3,130 60-89 DPD 549 126 212 314 87 1,288 90-119 DPD 257 74 192 109 80 712 120-179 DPD 225 77 320 2 27 651 180+ DPD 822 213 1 — 20 1,056 Government insured/guaranteed loans (1) 12,688 — — — — 12,688 Loans held at fair value 244 — — — — 244 Total consumer loans (excluding PCI) 280,077 34,381 39,025 45,069 36,148 434,700 Total consumer PCI loans (carrying value) (2) 4,988 17 — — — 5,005 Total consumer loans $ 285,065 34,398 39,025 45,069 36,148 439,705 (1) Represents loans whose repayments are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $6.3 billion at September 30, 2019 , compared with $7.7 billion at December 31, 2018 . (2) 27% of the adjusted unpaid principal balance for consumer PCI loans are 30+ DPD at September 30, 2019 , compared with 18% at December 31, 2018 . Of the $1.9 billion of consumer loans not government insured/guaranteed that are 90 days or more past due at September 30, 2019 , $788 million was accruing, compared with $2.4 billion past due and $885 million accruing at December 31, 2018 . Table 6.11 provides a breakdown of our consumer portfolio by FICO. Substantially all of the scored consumer portfolio has an updated FICO of 680 and above, reflecting a strong current borrower credit profile. FICO is not available for certain loan types, or may not be required if we deem it unnecessary due to strong collateral and other borrower attributes. Substantially all loans not requiring a FICO score are securities-based loans originated through retail brokerage, and totaled $8.9 billion at both September 30, 2019 and December 31, 2018 . Table 6.11: Consumer Loans by FICO (in millions) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Credit card Automobile Other revolving credit and installment Total September 30, 2019 By FICO: < 600 $ 3,331 1,219 3,210 6,539 682 14,981 600-639 2,484 821 2,741 4,538 660 11,244 640-679 5,011 1,551 6,410 6,476 1,766 21,214 680-719 12,825 3,396 9,543 7,629 3,277 36,670 720-759 27,800 4,694 8,201 7,245 4,179 52,119 760-799 62,039 5,745 5,442 6,545 5,036 84,807 800+ 161,711 12,236 3,901 7,699 7,810 193,357 No FICO available 3,646 1,162 181 67 2,510 7,566 FICO not required — — — — 8,854 8,854 Government insured/guaranteed loans (1) 11,164 — — — — 11,164 Total consumer loans (excluding PCI) 290,011 30,824 39,629 46,738 34,774 441,976 Total consumer PCI loans (carrying value) (2) 593 14 — — — 607 Total consumer loans $ 290,604 30,838 39,629 46,738 34,774 442,583 December 31, 2018 By FICO: < 600 $ 4,273 1,454 3,292 7,071 697 16,787 600-639 2,974 994 2,777 4,431 725 11,901 640-679 5,810 1,898 6,464 6,225 1,822 22,219 680-719 13,568 3,908 9,445 7,354 3,384 37,659 720-759 27,258 5,323 7,949 6,853 4,395 51,778 760-799 57,193 6,315 5,227 5,947 5,322 80,004 800+ 151,465 13,190 3,794 7,099 8,411 183,959 No FICO available 4,604 1,299 77 89 2,507 8,576 FICO not required — — — — 8,885 8,885 Government insured/guaranteed loans (1) 12,932 — — — — 12,932 Total consumer loans (excluding PCI) 280,077 34,381 39,025 45,069 36,148 434,700 Total consumer PCI loans (carrying value) (2) 4,988 17 — — — 5,005 Total consumer loans $ 285,065 34,398 39,025 45,069 36,148 439,705 (1) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (2) 40% of the adjusted unpaid principal balance for consumer PCI loans have FICO scores less than 680 and 19% where no FICO is available to us at September 30, 2019 , compared with 45% and 15% , respectively, at December 31, 2018 . 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. Table 6.12 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. 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 due to industry data availability and portfolios acquired from or serviced by other institutions. Table 6.12: Consumer Loans by LTV/CLTV September 30, 2019 December 31, 2018 (in millions) Real estate 1-4 family first mortgage by LTV Real estate 1-4 family junior lien mortgage by CLTV Total Real estate 1-4 family first mortgage by LTV Real estate 1-4 family junior lien mortgage by CLTV Total By LTV/CLTV: 0-60% $ 149,800 14,902 164,702 147,666 15,753 163,419 60.01-80% 113,887 10,038 123,925 104,477 11,183 115,660 80.01-100% 13,054 3,965 17,019 12,372 4,874 17,246 100.01-120% (1) 919 1,168 2,087 1,211 1,596 2,807 > 120% (1) 346 402 748 484 578 1,062 No LTV/CLTV available 841 349 1,190 935 397 1,332 Government insured/guaranteed loans (2) 11,164 — 11,164 12,932 — 12,932 Total consumer loans (excluding PCI) 290,011 30,824 320,835 280,077 34,381 314,458 Total consumer PCI loans (carrying value) (3) 593 14 607 4,988 17 5,005 Total consumer loans $ 290,604 30,838 321,442 285,065 34,398 319,463 (1) 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. (2) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (3) 11% of the adjusted unpaid principal balance for consumer PCI loans have LTV/CLTV amounts greater than 80% at September 30, 2019 , compared with 10% at December 31, 2018 . NONACCRUAL LOANS Table 6.13 provides loans on nonaccrual status. PCI loans are excluded from this table because they continue to earn interest from accretable yield, independent of performance in accordance with their contractual terms. Table 6.13: Nonaccrual Loans (in millions) Sep 30, Dec 31, Commercial: Commercial and industrial $ 1,539 1,486 Real estate mortgage 669 580 Real estate construction 32 32 Lease financing 72 90 Total commercial 2,312 2,188 Consumer: Real estate 1-4 family first mortgage 2,261 3,183 Real estate 1-4 family junior lien mortgage 819 945 Automobile 110 130 Other revolving credit and installment 43 50 Total consumer 3,233 4,308 Total nonaccrual loans (excluding PCI) $ 5,545 6,496 LOANS IN PROCESS OF FORECLOSURE Our recorded investment in consumer mortgage loans collateralized by residential real estate property that are in process of foreclosure was $3.6 billion and $4.6 billion at September 30, 2019 , and December 31, 2018 , respectively, which included $2.8 billion and $3.2 billion LOANS 90 DAYS OR MORE PAST DUE AND STILL ACCRUING Certain loans 90 days or more past due 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 $119 million at September 30, 2019 , and $370 million at December 31, 2018 , are not included in past due and still accruing loans even when they are 90 days or more contractually past due. 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. Table 6.14 shows non-PCI loans 90 days or more past due and still accruing by class for loans not government insured/guaranteed. Table 6.14: Loans 90 Days or More Past Due and Still Accruing (1) (in millions) Sep 30, 2019 Dec 31, 2018 Total (excluding PCI): $ 7,130 8,704 Less: FHA insured/VA guaranteed (1) 6,308 7,725 Total, not government insured/guaranteed $ 822 979 By segment and class, not government insured/guaranteed: Commercial: Commercial and industrial $ 6 43 Real estate mortgage 28 51 Real estate construction — — Total commercial 34 94 Consumer: Real estate 1-4 family first mortgage 100 124 Real estate 1-4 family junior lien mortgage 35 32 Credit card 491 513 Automobile 75 114 Other revolving credit and installment 87 102 Total consumer 788 885 Total, not government insured/guaranteed $ 822 979 (1) Represents loans whose repayments are predominantly IMPAIRED LOANS Table 6.15 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. Impaired loans generally have estimated losses which are included in the allowance for credit losses. We do have impaired loans with no allowance for credit losses when the loss content has been previously recognized through charge-offs, such as collateral dependent loans, or when loans are currently performing in accordance with their terms and no loss has been estimated. Impaired loans exclude PCI loans and loans that have been fully charged off or otherwise have zero recorded investment. Table 6.15 includes trial modifications that totaled $123 million at September 30, 2019 , and $149 million at December 31, 2018 . For additional information on our impaired loans and allowance for credit losses, see Note 1 (Summary of Significant Accounting Policies) in our 2018 Form 10-K. Table 6.15: Impaired Loans Summary Recorded investment (in millions) Unpaid principal balance Impaired loans Impaired loans with related allowance for credit losses Related allowance for credit losses September 30, 2019 Commercial: Commercial and industrial $ 2,719 2,077 1,853 300 Real estate mortgage 1,198 1,047 922 122 Real estate construction 71 44 44 9 Lease financing 105 83 83 25 Total commercial 4,093 3,251 2,902 456 Consumer: Real estate 1-4 family first mortgage (1) 8,458 7,994 4,704 486 Real estate 1-4 family junior lien mortgage 1,643 1,504 968 159 Credit card 504 504 504 199 Automobile 141 82 44 9 Other revolving credit and installment 175 168 150 45 Total consumer (2) 10,921 10,252 6,370 898 Total impaired loans (excluding PCI) $ 15,014 13,503 9,272 1,354 December 31, 2018 Commercial: Commercial and industrial $ 3,057 2,030 1,730 319 Real estate mortgage 1,228 1,032 1,009 154 Real estate construction 74 47 46 9 Lease financing 146 112 112 32 Total commercial 4,505 3,221 2,897 514 Consumer: Real estate 1-4 family first mortgage 12,309 10,738 4,420 525 Real estate 1-4 family junior lien mortgage 1,886 1,694 1,133 183 Credit card 449 449 449 172 Automobile 153 89 43 8 Other revolving credit and installment 162 156 136 41 Total consumer (2) 14,959 13,126 6,181 929 Total impaired loans (excluding PCI) $ 19,464 16,347 9,078 1,443 (1) Impaired loans includes reduction of $1.7 billion reclassified to MLHFS during the first nine months of 2019. (2) Includes the recorded investment of $1.2 billion at September 30, 2019 , and $1.3 billion at December 31, 2018, 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 may also have limited, if any, allowance when the recorded investment of the loan approximates estimated net realizable value as a result of charge-offs prior to a TDR modification. Commitments to lend additional funds on loans whose terms have been modified in a TDR amounted to $462 million and $513 million at September 30, 2019 , and December 31, 2018 , respectively. Table 6.16 provides the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans by portfolio segment and class. Table 6.16: Average Recorded Investment in Impaired Loans Quarter ended September 30, Nine months ended September 30, 2019 2018 2019 2018 (in millions) Average recorded investment Recognized interest income Average recorded investment Recognized interest income Average recorded investment Recognized interest income Average recorded investment Recognized interest income Commercial: Commercial and industrial $ 2,036 26 2,325 59 2,173 99 2,316 138 Real estate mortgage 1,113 14 1,172 16 1,086 45 1,225 66 Real estate construction 48 3 66 2 51 5 62 4 Lease financing 78 1 117 — 92 1 127 1 Total commercial 3,275 44 3,680 77 3,402 150 3,730 209 Consumer: Real estate 1-4 family first mortgage 8,165 116 11,318 165 9,400 397 11,718 504 Real estate 1-4 family junior lien mortgage 1,561 24 1,775 29 1,622 76 1,832 87 Credit card 495 16 421 14 479 47 396 36 Automobile 83 3 87 2 85 10 85 8 Other revolving credit and installment 163 3 145 2 159 10 139 7 Total consumer 10,467 162 13,746 212 11,745 540 14,170 642 Total impaired loans (excluding PCI) $ 13,742 206 17,426 289 15,147 690 17,900 851 Interest income: Cash basis of accounting $ 55 92 190 257 Other (1) 151 197 500 594 Total interest income $ 206 289 690 851 (1) 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. 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, the balance of which totaled $12.1 billion and $15.5 billion at September 30, 2019 , and December 31, 2018 , respectively. The majority of the decline in consumer TDRs was due to a reclassification of $1.7 billion in real estate 1-4 family first mortgage TDR loans to MLHFS. We do not consider loan resolutions such as foreclosure or short sale to be a TDR. We may require some consumer 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. Table 6.17 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. Loans that both modify and pay off within the period, as well as changes in recorded investment during the period for loans modified in prior periods, are not included in the table. Table 6.17: TDR Modifications Primary modification type (1) Financial effects of modifications (in millions) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Quarter ended September 30, 2019 Commercial: Commercial and industrial $ 13 9 209 231 39 0.67 % $ 9 Real estate mortgage — 4 72 76 — 0.91 4 Real estate construction — 1 15 16 — 1.00 1 Lease financing — — 2 2 — — — Total commercial 13 14 298 325 39 0.75 14 Consumer: Real estate 1-4 family first mortgage 24 4 199 227 — 2.11 16 Real estate 1-4 family junior lien mortgage 1 8 19 28 — 2.49 9 Credit card — 94 — 94 — 12.78 94 Automobile 2 3 12 17 7 5.30 3 Other revolving credit and installment — 14 2 16 — 8.38 14 Trial modifications (6) —

Leasing Activity

Leasing Activity	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases as Lessor and Lessee Disclosure [Text Block]	Note 7: Leasing Activity The information below provides a summary of our leasing activities as a lessor and lessee. As a Lessor Table 7.1 presents the composition of our leasing revenue and Table 7.2 provides the components of our investment in lease financing. Table 7.1: Leasing Revenue (in millions) Quarter ended September 30, 2019 Nine months ended September 30, 2019 Interest income on lease financing $ 208 655 Other lease revenues: Variable revenues on lease financing 23 73 Fixed revenues on operating leases 339 1,069 Variable revenues on operating leases 16 48 Other lease-related revenues (1) 24 79 Lease income 402 1,269 Total leasing revenue $ 610 1,924 (1) Predominantly includes net gains on disposition of assets leased under operating leases or lease financings. Table 7.2: Investment in Lease Financing (in millions) Sep 30, 2019 Lease receivables $ 17,921 Residual asset values 4,244 Unearned income (2,565 ) Lease financing $ 19,600 Our net investment in financing and sales-type leases includes $2.0 billion of leveraged leases at September 30, 2019 . As shown in Table 9.1 , included in Note 9 (Other Assets), we had $8.5 billion in operating lease assets at September 30, 2019 , which was net of $3.2 billion of accumulated depreciation. Depreciation expense for the lease assets was $205 million and $653 million in the third quarter and first nine months of 2019, respectively. Table 7.3 presents future lease payments owed by our lessees. Table 7.3: Maturities of Lease Receivables September 30, 2019 (in millions) Direct financing and sales- type leases Operating leases Remainder of 2019 $ 1,454 258 2020 5,656 864 2021 4,557 609 2022 2,532 425 2023 1,391 285 Thereafter 2,331 626 Total lease receivables $ 17,921 3,067 As a Lessee Substantially all of our leases are operating leases. Table 7.4 presents balances for our operating leases. Table 7.4: Operating Lease Right of Use (ROU) Assets and Lease Liabilities (in millions) Sep 30, 2019 ROU assets $ 4,856 Lease liabilities 5,383 Table 7.5 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 7.5: Lease Costs (in millions) Quarter ended September 30, 2019 Nine months ended September 30, 2019 Fixed lease expense - operating leases $ 302 890 Variable lease expense 81 234 Other (1) (40 ) (57 ) Total lease costs $ 343 1,067 (1) Predominantly includes sublease rental income and gains recognized from sale leaseback transactions. Tables Table 7.6 and 7.7 provide the future lease payments under operating leases as of December 31, 2018, and September 30, 2019 , respectively. Table 7.7 also includes information on the remaining average lease term and discount rate. Table 7.6: Lease Payments on Operating Leases Prior to Adoption of ASU 2016-02 - Leases (in millions) December 31, 2018 2019 $ 1,174 2020 1,056 2021 880 2022 713 2023 577 Thereafter 1,654 Total $ 6,054 Table 7.7: Lease Payments on Operating Leases Subsequent to Adoption of ASU 2016-02 - Leases (in millions, except for weighted averages) September 30, 2019 Remainder of 2019 $ 128 2020 1,155 2021 1,004 2022 854 2023 713 Thereafter 2,251 Total lease payments 6,105 Less: imputed interest 722 Total operating lease liabilities $ 5,383 Weighted average remaining lease term (in years) 7.3 Weighted average discount rate 3.2 % Our operating leases predominantly expire within the next 15 years , with the longest lease expiring in 2105 . We do not include renewal or termination options in the establishment of the lease term when we are not reasonably certain that we will exercise them. As of September 30, 2019 , we had additional operating leases commitments of $106 million , predominantly for real estate, which leases had not yet commenced. These leases will commence by 2020 and have lease terms of 1 year to 11 years .

Equity Securities

Equity Securities	9 Months Ended
	Sep. 30, 2019
Equity Securities [Abstract]
Equity Securities	Note 8: Equity Securities Table 8.1 provides a summary of our equity securities by business purpose and accounting method, including equity securities with readily determinable fair values (marketable) and those without readily determinable fair values (nonmarketable). Table 8.1: Equity Securities (in millions) Sep 30, Dec 31, Held for trading at fair value: Marketable equity securities $ 24,436 19,449 Not held for trading: Fair value: Marketable equity securities (1) 6,639 4,513 Nonmarketable equity securities 7,293 5,594 Total equity securities at fair value 13,932 10,107 Equity method: Low-income housing tax credit investments 11,068 10,999 Private equity 3,425 3,832 Tax-advantaged renewable energy 3,143 3,073 New market tax credit and other 390 311 Total equity method 18,026 18,215 Other: Federal Reserve Bank stock and other at cost (2) 5,021 5,643 Private equity (3) 2,469 1,734 Total equity securities not held for trading 39,448 35,699 Total equity securities $ 63,884 55,148 (1) Includes $3.5 billion and $3.2 billion at September 30, 2019 , and December 31, 2018 , respectively, related to securities held as economic hedges of our deferred compensation plan obligations. (2) Includes $5.0 billion and $5.6 billion at September 30, 2019 , and December 31, 2018 , respectively, related to investments in Federal Reserve Bank and Federal Home Loan Bank stock. (3) Represents nonmarketable equity securities accounted for under the measurement alternative. Equity Securities Held for Trading Equity securities held for trading purposes are marketable equity securities traded on organized exchanges. These securities are held as part of our customer accommodation trading activities. For more information on these activities, see Note 4 (Trading Activities). Equity Securities Not Held for Trading We also hold equity securities unrelated to trading activities. These securities include private equity and tax credit investments, securities held as economic hedges or to meet regulatory requirements (for example, Federal Reserve Bank and Federal Home Loan Bank stock). Equity securities not held for trading purposes are accounted for at either fair value, equity method, cost or the measurement alternative. FAIR VALUE Marketable equity securities held for purposes other than trading primarily consist of exchange-traded equity funds held to economically hedge obligations related to our deferred compensation plans and to a lesser extent other holdings of publicly traded equity securities held for investment purposes. We account for certain nonmarketable equity securities under the fair value method, and substantially all of these securities are economically hedged with equity derivatives. EQUITY METHOD Our equity method investments consist of tax credit and private equity investments, the majority of which are our low-income housing tax credit (LIHTC) investments. We invest in affordable housing projects that qualify for the LIHTC, which are designed to promote private development of low-income housing. These investments generate a return mostly through realization of federal tax credit and other tax benefits. In the third quarter and first nine months of 2019 , we recognized pre-tax losses of $304 million and $875 million , respectively, related to our LIHTC investments, compared with $283 million and $850 million , respectively, for the same periods a year ago. These losses were recognized in other noninterest income. We also recognized total tax benefits of $362 million and $1.1 billion in the third quarter and first nine months of 2019 , respectively, which included tax credits recorded to income taxes of $286 million and $891 million for the same periods, respectively. In the third quarter and first nine months of 2018 , total tax benefits were $352 million and $1.1 billion , respectively, which included tax credits of $282 million and $853 million for the same periods, respectively. We are periodically required to provide additional financial support during the investment period. A liability is recognized for unfunded commitments that are both legally binding and probable of funding. These commitments are predominantly funded within three years of initial investment. Our liability for these unfunded commitments was $3.8 billion at September 30, 2019 , and $3.6 billion at December 31, 2018 . This liability for unfunded commitments is included in long-term debt. OTHER The remaining portion of our nonmarketable equity securities portfolio consists of securities accounted for using the cost or measurement alternative method. Realized Gains and Losses Not Held for Trading Table 8.2 provides a summary of the net gains and losses from equity securities not held for trading. Gains and losses for securities held for trading are reported in net gains from trading activities. Table 8.2: Net Gains (Losses) from Equity Securities Not Held for Trading Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ 116 103 757 139 Nonmarketable equity securities 1,477 822 3,145 1,525 Total equity securities carried at fair value 1,593 925 3,902 1,664 Net gains (losses) from nonmarketable equity securities not carried at fair value: Impairment write-downs (43 ) (45 ) (110 ) (302 ) Net unrealized gains related to measurement alternative observable transactions 158 51 489 314 Net realized gains on sale 623 204 1,029 1,101 All other — — — 34 Total nonmarketable equity securities not carried at fair value 738 210 1,408 1,147 Net losses from economic hedge derivatives (1) (1,375 ) (719 ) (2,918 ) (1,317 ) Total net gains from equity securities $ 956 416 2,392 1,494 (1) Includes net gains (losses) on derivatives not designated as hedging instruments. Measurement Alternative Table 8.3 provides additional information about the impairment write-downs and observable price adjustments related to nonmarketable equity securities accounted for under the measurement alternative. Gains and losses related to these adjustments are also included in Table 8.2. Table 8.3: Net Gains (Losses) from Measurement Alternative Equity Securities Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 158 68 500 339 Gross unrealized losses due to observable price changes — (17 ) (11 ) (25 ) Impairment write-downs (20 ) (6 ) (53 ) (18 ) Realized net gains from sale 36 186 161 277 Total net gains recognized during the period $ 174 231 597 573 Table 8.4 presents cumulative carrying value adjustments to nonmarketable equity securities accounted for under the measurement alternative that were still held as of the balance sheet date. Table 8.4: Measurement Alternative Cumulative Gains (Losses) (in millions) Sep 30, Dec 31, Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 889 415 Gross unrealized losses due to observable price changes (36 ) (25 ) Impairment write-downs (71 ) (33 )

Other Assets

Other Assets	9 Months Ended
	Sep. 30, 2019
Other Assets [Abstract]
Other Assets	Note 9: Other Assets Table 9.1 presents the components of other assets. Table 9.1: Other Assets (in millions) Sep 30, Dec 31, Corporate/bank-owned life insurance $ 19,983 19,751 Accounts receivable (1) 40,246 34,281 Interest receivable 5,962 6,084 Customer relationship and other amortized intangibles 451 545 Foreclosed assets: Residential real estate: Government insured/guaranteed (1) 59 88 Non-government insured/guaranteed 177 229 Other 201 134 Operating lease assets (lessor) 8,478 9,036 Operating lease ROU assets (lessee) (2) 4,856 — Due from customers on acceptances 284 258 Other 9,027 9,444 Total other assets $ 89,724 79,850 (1) Certain government-guaranteed residential real estate mortgage loans upon foreclosure are included in Accounts receivable. For more information, see Note 1 (Summary of Significant Accounting Policies) in our 2018 Form 10-K. (2) We recognized operating lease right of use (ROU) assets effective January 1, 2019, in connection with the adoption of ASU 2016-02 – Leases. For more information, see Note 1 (Summary of Significant Accounting Policies).

Securitizations and Variable In

Securitizations and Variable Interest Entities	9 Months Ended
	Sep. 30, 2019
Securitizations and Variable Interest Entities [Abstract]
Securitizations and Variable Interest Entities	Note 10: Securitizations and Variable Interest Entities Involvement with Special Purpose Entities (SPEs) In the normal course of business, we enter into various types of on- and off-balance sheet transactions with SPEs, which are corporations, trusts, limited liability companies or partnerships that are established for a limited purpose. Generally, SPEs are formed in connection with securitization transactions and are considered variable interest entities (VIEs). For further description of our involvement with SPEs, see Note 9 (Securitizations and Variable Interest Entities) in our 2018 Form 10-K. Table 10.1 provides the classifications of assets and liabilities in our balance sheet for our transactions with VIEs. Subsequent tables within this Note further segregate these transactions by structure type. Table 10.1: Balance Sheet Transactions with VIEs (in millions) VIEs that we do not consolidate VIEs that we consolidate Transfers that we account for as secured borrowings (1) Total September 30, 2019 Cash and due from banks $ — 10 — 10 Interest-earning deposits with banks — 118 — 118 Debt securities (2): Trading debt securities 1,915 61 201 2,177 Available-for-sale debt securities 1,696 — — 1,696 Held-to-maturity debt securities 619 — — 619 Loans 1,406 13,134 84 14,624 Mortgage servicing rights 11,381 — — 11,381 Derivative assets 178 — — 178 Equity securities 11,117 100 — 11,217 Other assets — 214 3 217 Total assets 28,312 13,637 288 42,237 Short-term borrowings — — 200 200 Derivative liabilities 1 — (3) — 1 Accrued expenses and other liabilities 196 202 (3) 1 399 Long-term debt 3,822 722 (3) 83 4,627 Total liabilities 4,019 924 284 5,227 Noncontrolling interests — 39 — 39 Net assets $ 24,293 12,674 4 36,971 December 31, 2018 Cash and due from banks $ — 139 — 139 Interest-earning deposits with banks — 8 — 8 Debt securities (2): Trading debt securities 2,110 45 200 2,355 Available-for-sale debt securities 2,686 — 317 3,003 Held-to-maturity debt securities 510 — — 510 Loans 1,433 13,564 94 15,091 Mortgage servicing rights 14,761 — — 14,761 Derivative assets 53 — — 53 Equity securities 11,041 85 — 11,126 Other assets — 221 6 227 Total assets 32,594 14,062 617 47,273 Short-term borrowings — — 493 493 Derivative liabilities 26 — (3) — 26 Accrued expenses and other liabilities 231 191 (3) 8 430 Long-term debt 3,870 816 (3) 93 4,779 Total liabilities 4,127 1,007 594 5,728 Noncontrolling interests — 34 — 34 Net assets $ 28,467 13,021 23 41,511 (1) 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. (2) Excludes certain debt securities related to loans serviced for the Federal National Mortgage Association (FNMA), Federal Home Loan Mortgage Corporation (FHLMC) and Government National Mortgage Association (GNMA). (3) There were no VIE liabilities with recourse to the general credit of Wells Fargo for the periods presented. Transactions with Unconsolidated VIEs Our transactions with unconsolidated VIEs include securitizations of residential mortgage loans, CRE loans, student loans, automobile loans and leases, certain dealer floorplan loans; investment and financing activities involving collateralized debt obligations (CDOs) backed by asset-backed and CRE securities, tax credit structures, collateralized loan obligations (CLOs) backed by corporate loans, and other types of structured financing. We have various forms of involvement with VIEs, including servicing, holding senior or subordinated interests, entering into liquidity arrangements and derivative contracts. Involvements with these unconsolidated VIEs are recorded on our balance sheet in debt and equity securities, loans, MSRs, derivative assets and liabilities, other assets, other liabilities, and long-term debt, as appropriate. Table 10.2 provides 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 (unless we are servicer and have other significant forms of involvement) or if we were the sponsor only or sponsor and servicer but do not have any other forms of significant 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 (other than those held temporarily in 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 of the unconsolidated VIEs. We also exclude from the table secured borrowing transactions with unconsolidated VIEs (for information on these transactions, see the Transactions with Consolidated VIEs and Secured Borrowings section in this Note). Table 10.2: Unconsolidated VIEs Carrying value – asset (liability) (in millions) Total VIE assets Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Net assets September 30, 2019 Residential mortgage loan securitizations: Conforming (2) $ 1,112,618 2,043 10,469 — (134 ) 12,378 Other/nonconforming 7,869 13 47 — — 60 Commercial mortgage securitizations 157,940 2,109 865 110 (42 ) 3,042 Collateralized debt obligations: Debt securities 619 — — 9 (20 ) (11 ) Asset-based finance structures 218 117 — — — 117 Tax credit structures 37,354 12,356 — — (3,822 ) 8,534 Collateralized loan obligations 132 1 — — — 1 Investment funds 210 49 — — — 49 Other 1,436 65 — 58 — 123 Total $ 1,318,396 16,753 11,381 177 (4,018 ) 24,293 Maximum exposure to loss Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Total exposure Residential mortgage loan securitizations: Conforming $ 2,043 10,469 — 960 13,472 Other/nonconforming 13 47 — — 60 Commercial mortgage securitizations 2,109 865 110 11,884 14,968 Collateralized debt obligations: Debt securities — — 9 20 29 Asset-based finance structures 117 — — 71 188 Tax credit structures 12,356 — — 1,252 13,608 Collateralized loan obligations 1 — — — 1 Investment funds 49 — — — 49 Other 65 — 61 157 283 Total $ 16,753 11,381 180 14,344 42,658 (continued on following page) (continued from previous page) Carrying value – asset (liability) (in millions) Total VIE assets Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Net assets December 31, 2018 Residential mortgage loan securitizations: Conforming (2) $ 1,172,833 2,377 13,811 — (171 ) 16,017 Other/nonconforming 10,596 453 57 — — 510 Commercial mortgage securitizations 153,350 2,409 893 (22 ) (40 ) 3,240 Collateralized debt obligations: Debt securities 659 — — 5 (20 ) (15 ) Asset-based finance structures 304 205 — — — 205 Tax credit structures 35,185 12,087 — — (3,870 ) 8,217 Collateralized loan obligations 2 — — — — — Investment funds 185 42 — — — 42 Other 1,688 207 — 44 — 251 Total $ 1,374,802 17,780 14,761 27 (4,101 ) 28,467 Maximum exposure to loss Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Total exposure Residential mortgage loan securitizations: Conforming $ 2,377 13,811 — 1,183 17,371 Other/nonconforming 453 57 — — 510 Commercial mortgage securitizations 2,409 893 28 11,563 14,893 Collateralized debt obligations: Debt securities — — 5 20 25 Asset-based finance structures 205 — — 71 276 Tax credit structures 12,087 — — 1,420 13,507 Collateralized loan obligations — — — — — Investment funds 42 — — — 42 Other 207 — 45 158 410 Total $ 17,780 14,761 78 14,415 47,034 (1) Includes total equity interests of $11.1 billion and $11.0 billion at September 30, 2019 , and December 31, 2018 , respectively. 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. (2) Excludes assets and related liabilities with a recorded carrying value on our balance sheet of $578 million and $1.2 billion at September 30, 2019 , and December 31, 2018 , respectively, for certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. The recorded carrying value represents the amount that would be payable if the Company was to exercise the repurchase option. The carrying amounts are excluded from the table because the loans eligible for repurchase do not represent interests in the VIEs. In Table 10.2 , “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 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 disclosure is not an indication of expected loss. For complete descriptions of our types of transactions with unconsolidated VIEs with which we have a significant continuing involvement, but we are not the primary beneficiary, see Note 9 (Securitizations and Variable Interest Entities) in our 2018 Form 10-K. INVESTMENT FUNDS We voluntarily waived a portion of our management fees for certain money market funds that are exempt from the consolidation analysis to ensure the funds maintained a minimum level of daily net investment income. The amount of fees waived in the third quarter and first nine months of 2019 was $10 million and $30 million , respectively, compared with $10 million and $35 million , respectively, in the same periods of 2018 . 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 we reported the debt securities issued to the VIEs as long-term junior subordinated debt with a carrying value of $2.2 billion and $2.0 billion at September 30, 2019 , and December 31, 2018 , 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 VIEs are not included in the preceding table. Loan Sales and Securitization Activity We periodically transfer consumer and CRE loans and other types of financial assets in securitization and whole loan sale transactions. We typically retain the servicing rights from these sales and may continue to hold other beneficial interests in the transferred financial assets. We may also provide liquidity to investors in the beneficial interests and credit enhancements in the form of standby letters of credit. Through these transfers we may be exposed to liability under limited amounts of recourse as well as standard representations and warranties we make to purchasers and issuers. Table 10.3 presents the cash flows for our transfers accounted for as sales in which we have continuing involvement with the transferred financial assets. Table 10.3: Cash Flows From Sales and Securitization Activity Mortgage loans (in millions) 2019 2018 Quarter ended September 30, Proceeds from securitizations and whole loan sales $ 52,274 53,792 Fees from servicing rights retained 793 812 Cash flows from other interests held (1) 131 221 Repurchases of assets/loss reimbursements (2): Non-agency securitizations and whole loan transactions 1,369 2 Agency securitizations (3) 26 17 Servicing advances, net of repayments (73 ) (24 ) Nine months ended September 30, Proceeds from securitizations and whole loan sales $ 128,478 156,369 Fees from servicing rights retained 2,359 2,487 Cash flows from other interests held (1) 375 574 Repurchases of assets/loss reimbursements (2): Non-agency securitizations and whole loan transactions 1,370 4 Agency securitizations (3) 70 69 Servicing advances, net of repayments (166 ) (67 ) (1) Cash flows from other interests held predominantly include principal and interest payments received on retained bonds and excess cash flows received on interest-only strips. (2) Consists of cash paid to repurchase loans from investors, which may include the exercise of cleanup calls on securitizations, and cash paid to investors to reimburse them for losses on individual loans that are already liquidated. (3) Represent loans repurchased from GNMA, FNMA, and FHLMC under representation and warranty provisions included in our loan sales contracts. Third quarter and first nine months of 2019 exclude $1.4 billion and $4.6 billion , respectively, in delinquent insured/guaranteed loans that we service and have exercised our option to purchase out of GNMA pools, compared with $1.5 billion and $6.2 billion , respectively, in the same periods of 2018. These loans are predominantly insured by the FHA or guaranteed by the VA. In the third quarter and first nine months of 2019 , we recognized net gains of $98 million and $278 million , respectively, predominantly from transfers of commercial and residential mortgage loans accounted for as sales , in which we have continuing involvement with the transferred assets, compared with $51 million and $163 million , respectively, in the same periods of 2018 . Net gains recognized in the third quarter and first nine months of 2018 were revised from the amounts previously reported to exclude transfers for which we do not have continuing involvement. These net gains predominantly relate to sales of loans that were not measured at fair value on a recurring basis (for example, lower of cost or fair value (LOCOM)). Sales with continuing involvement during the third quarter and first nine months of 2019 and 2018 included securitizations of residential mortgages that are sold to the government-sponsored entities (GSEs), such as FNMA and FHLMC, and GNMA (conforming residential mortgage securitizations). Substantially all of these transfers did not result in a gain or loss because the loans were already measured at fair value on a recurring basis. During the third quarter and first nine months of 2019 , we transferred $48.4 billion and $119.2 billion , respectively, in fair value of residential mortgages to unconsolidated VIEs and third-party investors and recorded the transfers as sales, compared with $49.6 billion and $144.6 billion , respectively, in the same periods of 2018 . In connection with all of these transfers, in the first nine months of 2019 , we recorded a $1.2 billion servicing asset, measured at fair value using a Level 3 measurement technique, securities of $7.7 billion , classified as Level 2, and a $13 million liability for 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 2018 , we recorded a $1.5 billion servicing asset, securities of $2.6 billion , and a $12 million liability for repurchase losses. Table 10.4 presents the key weighted-average assumptions we used to measure residential mortgage servicing rights at the date of securitization. Table 10.4: Residential Mortgage Servicing Rights Residential mortgage servicing rights 2019 2018 Quarter ended September 30, Prepayment speed (1) 13.2 % 11.2 Discount rate 7.4 7.6 Cost to service ($ per loan) (2) $ 101 128 Nine months ended September 30, Prepayment speed (1) 13.3 % 10.5 Discount rate 7.6 7.4 Cost to service ($ per loan) (2) $ 106 130 (1) 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. (2) Includes costs to service and unreimbursed foreclosure costs, which can vary period to period depending on the mix of modified government-guaranteed loans sold to GNMA. During the third quarter and first nine months of 2019 , we transferred $4.4 billion and $10.5 billion , respectively, in carrying value of commercial mortgages to unconsolidated VIEs and third-party investors and recorded the transfers as sales, compared with $4.1 billion and $11.6 billion , respectively, in the same periods of 2018 . These transfers resulted in gains of $72 million and $193 million in the third quarter and first nine months of 2019 , respectively, because the loans were carried at LOCOM, compared with gains of $67 million and $196 million in the same periods of 2018 . In connection with these transfers, in the first nine months of 2019 , we recorded a servicing asset of $92 million , initially measured at fair value using a Level 3 measurement technique, and no securities. In the first nine months of 2018 , we recorded a servicing asset of $106 million and securities of $47 million . Retained Interests from Unconsolidated VIEs Table 10.5 provides key economic assumptions and the sensitivity of the current fair value of residential mortgage servicing rights and other interests held related to unconsolidated VIEs to immediate adverse changes in those assumptions. “Other interests held” relate to residential and commercial mortgage loan securitizations. Residential mortgage-backed securities retained in securitizations issued through GSEs, such as FNMA and FHLMC, and GNMA, are excluded from the table because these securities have a remote risk of credit loss due to the GSE guarantee. These securities also have economic characteristics similar to GSE mortgage-backed securities that we purchase, which are not included in the table. Subordinated interests include only those bonds whose credit rating was below AAA by a major rating agency at issuance. Senior interests include only those bonds whose credit rating was AAA by a major rating agency at issuance. The information presented excludes trading positions held in inventory. Table 10.5: Retained Interests from Unconsolidated VIEs Other interests held Residential mortgage servicing rights (1) Interest-only strips Commercial ($ in millions, except cost to service amounts) Subordinated bonds Senior bonds Fair value of interests held at September 30, 2019 $ 11,072 7 752 304 Expected weighted-average life (in years) 5.2 3.4 7.2 5.0 Key economic assumptions: Prepayment speed assumption (2) 12.4 % 18.0 Decrease in fair value from: 10% adverse change $ 521 — 25% adverse change 1,222 1 Discount rate assumption 6.9 % 14.1 4.0 2.7 Decrease in fair value from: 100 basis point increase $ 437 — 44 13 200 basis point increase 838 — 84 25 Cost to service assumption ($ per loan) 102 Decrease in fair value from: 10% adverse change 269 25% adverse change 672 Credit loss assumption 3.8 % — Decrease in fair value from: 10% higher losses $ 2 — 25% higher losses 5 — Fair value of interests held at December 31, 2018 $ 14,649 16 668 309 Expected weighted-average life (in years) 6.5 3.6 7.0 5.7 Key economic assumptions: Prepayment speed assumption (2) 9.9 % 17.7 Decrease in fair value from: 10% adverse change $ 530 1 25% adverse change 1,301 1 Discount rate assumption 8.1 % 14.5 4.3 3.7 Decrease in fair value from: 100 basis point increase $ 615 — 37 14 200 basis point increase 1,176 1 72 28 Cost to service assumption ($ per loan) 106 Decrease in fair value from: 10% adverse change 316 25% adverse change 787 Credit loss assumption 5.1 % — Decrease in fair value from: 10% higher losses $ 2 — 25% higher losses 5 — (1) Residential mortgage servicing rights include purchased servicing assets as well as servicing assets resulting from the transfer of loans. See narrative following this table for a discussion of commercial mortgage servicing rights. (2) 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 MSRs included in the previous table, we have a small portfolio of commercial MSRs with a fair value of $1.8 billion and $2.3 billion at September 30, 2019 , and December 31, 2018 , 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. Similarly, prepayment speed assumptions do not significantly impact the value of the commercial mortgage securitization bonds. 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 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, 2019 , and December 31, 2018 , results in a decrease in fair value of $200 million and $320 million , respectively. See Note 11 (Mortgage Banking Activities) 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. Off-Balance Sheet Loans Table 10.6 presents information about the principal balances of off-balance sheet loans that were sold or securitized, including residential mortgage loans sold to FNMA, FHLMC, GNMA and other investors, for which we have some form of continuing involvement (including servicer). Delinquent loans include loans 90 days or more past due and loans in bankruptcy, regardless of delinquency status. For loans sold or securitized where servicing is our only form of continuing involvement, we would only experience a loss if we were required to repurchase a delinquent loan or foreclosed asset due to a breach in representations and warranties associated with our loan sale or servicing contracts. Table 10.6: Off-Balance Sheet Loans Sold or Securitized Net charge-offs (3) Total loans Delinquent loans and foreclosed assets (1) Nine months ended Sep 30, (in millions) Sep 30, 2019 Dec 31, 2018 Sep 30, 2019 Dec 31, 2018 2019 2018 Commercial: Real estate mortgage $ 108,091 105,173 904 1,008 109 244 Total commercial 108,091 105,173 904 1,008 109 244 Consumer: Real estate 1-4 family first mortgage 1,025,168 1,097,128 6,845 8,947 180 368 Real estate 1-4 family junior lien mortgage 14 — 1 — — — Total consumer 1,025,182 1,097,128 6,846 8,947 180 368 Total off-balance sheet sold or securitized loans (2) $ 1,133,273 1,202,301 7,750 9,955 289 612 (1) Includes $547 million and $675 million of commercial foreclosed assets and $398 million and $582 million of consumer foreclosed assets at September 30, 2019 , and December 31, 2018 , respectively. (2) At September 30, 2019 , and December 31, 2018 , the table includes total loans of $1.1 trillion at both dates, delinquent loans of $5.2 billion and $6.4 billion , and foreclosed assets of $280 million and $442 million , respectively, for FNMA, FHLMC and GNMA. (3) 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 Table 10.7 presents a summary of financial assets and liabilities for asset transfers accounted for as secured borrowings and involvements with consolidated VIEs. Carrying values of “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. Table 10.7: Transactions with Consolidated VIEs and Secured Borrowings Carrying value (in millions) Total VIE assets Assets Liabilities Noncontrolling interests Net assets September 30, 2019 Secured borrowings: Municipal tender option bond securitizations $ 200 204 (201 ) — 3 Residential mortgage securitizations 84 84 (83 ) — 1 Total secured borrowings 284 288 (284 ) — 4 Consolidated VIEs: Commercial and industrial loans and leases 7,426 7,411 (496 ) (15 ) 6,900 Nonconforming residential mortgage loan securitizations 1,385 1,210 (425 ) — 785 Commercial real estate loans 4,841 4,841 — — 4,841 Investment funds 170 170 (2 ) (20 ) 148 Other 5 5 (1 ) (4 ) — Total consolidated VIEs 13,827 13,637 (924 ) (39 ) 12,674 Total secured borrowings and consolidated VIEs $ 14,111 13,925 (1,208 ) (39 ) 12,678 December 31, 2018 Secured borrowings: Municipal tender option bond securitizations $ 627 523 (501 ) — 22 Residential mortgage securitizations 95 94 (93 ) — 1 Total secured borrowings 722 617 (594 ) — 23 Consolidated VIEs: Commercial and industrial loans and leases 8,215 8,204 (477 ) (14 ) 7,713 Nonconforming residential mortgage loan securitizations 1,947 1,732 (521 ) — 1,211 Commercial real estate loans 3,957 3,957 — — 3,957 Investment funds 155 155 (5 ) (15 ) 135 Other 14 14 (4 ) (5 ) 5 Total consolidated VIEs 14,288 14,062 (1,007 ) (34 ) 13,021 Total secured borrowings and consolidated VIEs $ 15,010 14,679 (1,601 ) (34 ) 13,044 For complete descriptions of our accounting for transfers accounted for as secured borrowings and involvements with consolidated VIEs, see Note 9 (Securitizations and Variable Interest Entities) in our 2018 Form 10-K.

Mortgage Banking Activities

Mortgage Banking Activities	9 Months Ended
	Sep. 30, 2019
Mortgage Banking Activities [Abstract]
Mortgage Banking Activities	Note 11: 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 the fair value method to residential MSRs. Table 11.1 presents the changes in MSRs measured using the fair value method. Table 11.1: Analysis of Changes in Fair Value MSRs Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Fair value, beginning of period $ 12,096 15,411 14,649 13,625 Servicing from securitizations or asset transfers (1) 538 502 1,279 1,561 Sales and other (2) (4 ) (2 ) (286 ) (7 ) Net additions 534 500 993 1,554 Changes in fair value: Due to changes in valuation model inputs or assumptions: Mortgage interest rates (3) (718 ) 582 (2,811 ) 2,211 Servicing and foreclosure costs (4) 13 (9 ) 3 55 Discount rates (5) 188 (9 ) 179 (9 ) Prepayment estimates and other (6) (445 ) (33 ) (302 ) (51 ) Net changes in valuation model inputs or assumptions (962 ) 531 (2,931 ) 2,206 Changes due to collection/realization of expected cash flows over time (596 ) (462 ) (1,639 ) (1,405 ) Total changes in fair value (1,558 ) 69 (4,570 ) 801 Fair value, end of period $ 11,072 15,980 11,072 15,980 (1) Includes impacts associated with exercising cleanup calls on securitizations as well as our right to repurchase delinquent loans from GNMA loan securitization pools. Total reported MSRs may increase upon repurchase due to servicing liabilities associated with these delinquent GNMA loans. (2) Includes sales and transfers of MSRs, which can result in an increase of total reported MSRs if the sales or transfers are related to nonperforming loan portfolios or portfolios with servicing liabilities. (3) Includes prepayment speed changes as well as other valuation changes due to changes in mortgage interest rates (such as changes in estimated interest earned on custodial deposit balances). (4) Includes costs to service and unreimbursed foreclosure costs. (5) Reflects discount rate assumption change, excluding portion attributable to changes in mortgage interest rates. (6) Represents changes driven by updates to 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 and other external factors that occur independent of interest rate changes. Table 11.2 presents the changes in amortized MSRs. Table 11.2: Analysis of Changes in Amortized MSRs Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Balance, beginning of period $ 1,407 1,407 1,443 1,424 Purchases 25 42 65 82 Servicing from securitizations or asset transfers 33 33 92 106 Amortization (68 ) (68 ) (203 ) (198 ) Balance, end of period (1) $ 1,397 1,414 1,397 1,414 Fair value of amortized MSRs: Beginning of period $ 1,897 2,309 2,288 2,025 End of period 1,813 2,389 1,813 2,389 (1) Commercial amortized MSRs are evaluated for impairment purposes by the following risk strata: agency (GSEs) for multi-family properties and non-agency. There was no valuation allowance recorded for the periods presented on the commercial amortized MSRs. We present the components of our managed servicing portfolio in Table 11.3 at unpaid principal balance for loans serviced and subserviced for others and at book value for owned loans serviced. Table 11.3: Managed Servicing Portfolio (in billions) Sep 30, 2019 Dec 31, 2018 Residential mortgage servicing: Serviced for others $ 1,083 1,164 Owned loans serviced (1) 346 334 Subserviced for others 3 4 Total residential servicing 1,432 1,502 Commercial mortgage servicing: Serviced for others 551 543 Owned loans serviced 122 121 Subserviced for others 9 9 Total commercial servicing 682 673 Total managed servicing portfolio $ 2,114 2,175 Total serviced for others $ 1,634 1,707 Ratio of MSRs to related loans serviced for others 0.76 % 0.94 (1) Excludes loans serviced by third parties. Table 11.4 presents the components of mortgage banking noninterest income. Table 11.4: Mortgage Banking Noninterest Income Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Servicing income, net: Servicing fees: Contractually specified servicing fees $ 854 880 2,540 2,697 Late charges 34 40 97 126 Ancillary fees 36 49 112 136 Unreimbursed direct servicing costs (1) (118 ) (79 ) (272 ) (258 ) Net servicing fees 806 890 2,477 2,701 Changes in fair value of MSRs carried at fair value: Due to changes in valuation model inputs or assumptions (2) (A) (962 ) 531 (2,931 ) 2,206 Changes due to collection/realization of expected cash flows over time (596 ) (462 ) (1,639 ) (1,405 ) Total changes in fair value of MSRs carried at fair value (1,558 ) 69 (4,570 ) 801 Amortization (68 ) (68 ) (203 ) (198 ) Net derivative gains (losses) from economic hedges (3) (B) 678 (501 ) 2,795 (2,040 ) Total servicing income, net (142 ) 390 499 1,264 Net gains on mortgage loan origination/sales activities (4) 608 456 1,433 1,286 Total mortgage banking noninterest income $ 466 846 1,932 2,550 Market-related valuation changes to MSRs, net of hedge results (2)(3) (A)+(B) $ (284 ) 30 (136 ) 166 (1) Includes costs associated with foreclosures, unreimbursed interest advances to investors, and other interest costs. (2) Refer to the analysis of changes in fair value MSRs presented in Table 11.1 in this Note for more detail. (3) Represents results from economic hedges used to hedge the risk of changes in fair value of MSRs. See Note 15 (Derivatives) for additional discussion and detail. (4) Includes net gains (losses) of $58 million and $(376) million in the third quarter and first nine months of 2019 , respectively, and $167 million and $926 million in the third quarter and first nine months of 2018 , respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Note 12: Intangible Assets Table 12.1 presents the gross carrying value of intangible assets and accumulated amortization. Table 12.1: Intangible Assets September 30, 2019 December 31, 2018 (in millions) Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value Amortized intangible assets (1): MSRs (2) $ 4,318 (2,921 ) 1,397 4,161 (2,718 ) 1,443 Core deposit intangibles — — — 12,834 (12,834 ) — Customer relationship and other intangibles 3,937 (3,486 ) 451 3,994 (3,449 ) 545 Total amortized intangible assets $ 8,255 (6,407 ) 1,848 20,989 (19,001 ) 1,988 Unamortized intangible assets: MSRs (carried at fair value) (2) $ 11,072 14,649 Goodwill 26,388 26,418 Trademark 14 14 (1) Balances are excluded commencing in the period following full amortization. (2) See Note 11 (Mortgage Banking Activities) for additional information on MSRs. Table 12.2 provides the current year 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, 2019 . Future amortization expense may vary from these projections. Table 12.2: Amortization Expense for Intangible Assets (in millions) Amortized MSRs Customer relationship and other intangibles Total Nine months ended September 30, 2019 (actual) $ 203 87 290 Estimate for the remainder of 2019 $ 67 27 94 Estimate for year ended December 31, 2020 251 95 346 2021 216 81 297 2022 193 68 261 2023 165 59 224 2024 141 48 189 Table 12.3 shows the allocation of goodwill to our reportable operating segments. We assess goodwill for impairment at a reporting unit level, which is one level below the operating segments. Table 12.3: Goodwill (in millions) Community Banking Wholesale Banking Wealth and Investment Management Consolidated Company December 31, 2017 $ 16,849 8,455 1,283 26,587 Reclassification of goodwill held for sale to other assets (155 ) — — (155 ) Reduction in goodwill related to divested businesses and other (6 ) (1 ) — (7 ) September 30, 2018 (1) $ 16,688 8,454 1,283 26,425 December 31, 2018 $ 16,685 8,450 1,283 26,418 Reclassification of goodwill held for sale to other assets — (25 ) — (25 ) Reduction in goodwill related to divested businesses and other — — (7 ) (7 ) Foreign currency translation — 2 — 2 September 30, 2019 (1) $ 16,685 8,427 1,276 26,388 (1) At September 30, 2018 , others assets included goodwill classified as held-for-sale of $12 million related to the branch divestitures, which closed in November 2018. At September 30, 2019 , other assets included goodwill classified as held-for-sale of $25 million related to the sale of our Eastdil business, which closed in October 2019.

Guarantees, Pledged Assets and

Guarantees, Pledged Assets and Collateral, and other Commitments	9 Months Ended
	Sep. 30, 2019
Guarantees [Abstract]
Guarantees, Pledged Assets and Collateral, and other commitments	Note 13: Guarantees, Pledged Assets and Collateral, and Other Commitments 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, written put options, recourse obligations, and other types of similar arrangements. For complete descriptions of our guarantees, see Note 15 (Guarantees, Pledged Assets and Collateral, and Other Commitments) in our 2018 Form 10-K. Table 13.1 shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts. Table 13.1: Guarantees – Carrying Value and Maximum Exposure to Loss Maximum exposure to loss (in millions) Carrying value of obligation (asset) Expires in one year or less Expires after one year through three years Expires after three years through five years Expires after five years Total Non- investment grade September 30, 2019 Standby letters of credit (1) $ 35 13,734 7,631 3,758 471 25,594 7,960 Securities lending and other indemnifications (2) — — 2 — 758 760 2 Written put options (3) (259 ) 14,081 10,600 2,008 373 27,062 16,953 Loans and MLHFS sold with recourse (4) 52 109 626 1,263 10,329 12,327 9,145 Factoring guarantees (5) — 715 — — — 715 681 Other guarantees 1 — — 3 4,805 4,808 1 Total guarantees $ (171 ) 28,639 18,859 7,032 16,736 71,266 34,742 December 31, 2018 Standby letters of credit (1) $ 40 14,636 7,897 3,398 497 26,428 8,027 Securities lending and other indemnifications (2) — — 1 — 1,044 1,045 1 Written put options (3) (185 ) 17,243 10,502 3,066 400 31,211 21,732 Loans and MLHFS sold with recourse (4) 54 104 653 1,207 10,163 12,127 9,079 Factoring guarantees (5) — 889 — — — 889 751 Other guarantees 1 — — 3 2,959 2,962 1 Total guarantees $ (90 ) 32,872 19,053 7,674 15,063 74,662 39,591 (1) Total maximum exposure to loss includes direct pay letters of credit (DPLCs) of $6.5 billion and $7.5 billion at September 30, 2019 , and December 31, 2018 , respectively. (2) Includes indemnifications provided to certain third-party clearing agents. Outstanding customer obligations under these arrangements were $81 million and $70 million with related collateral of $678 million and $974 million at September 30, 2019 , and December 31, 2018 , respectively. (3) Written put options, which are in the form of derivatives, are also included in the derivative disclosures in Note 15 (Derivatives). Carrying value net asset position is a result of certain deferred premium option trades. (4) Represent recourse provided, predominantly to the GSEs, on loans sold under various programs and arrangements. (5) Consists of guarantees made under certain factoring arrangements to purchase trade receivables from third parties, generally upon their request, if receivable debtors default on their payment obligations. “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 performance 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. Credit quality indicators we usually consider in evaluating risk of payments or performance are described in Note 6 (Loans and Allowance for Credit Losses). Maximum exposure to loss represents the estimated loss that would be incurred under an assumed hypothetical circumstance, despite what we believe is a remote possibility, where the value of our interests and any associated collateral declines to zero. Maximum exposure to loss estimates in Table 13.1 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. Pledged Assets As part of our liquidity management strategy, we pledge various assets to secure trust and public deposits, borrowings and letters of credit from the Federal Home Loan Bank (FHLB) and FRB, securities sold under agreements to repurchase (repurchase agreements), securities lending arrangements, 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, GSEs, domestic and foreign companies and various commercial and consumer loans. Table 13.2 provides the total carrying amount of pledged assets by asset type and the fair value of pledged off-balance sheet securities for securities financings. The table excludes pledged consolidated VIE assets of $13.6 billion and $14.1 billion at September 30, 2019 , and December 31, 2018 , respectively, which can only be used to settle the liabilities of those entities. The table also excludes $288 million and $617 million in assets pledged in transactions with VIE’s accounted for as secured borrowings at September 30, 2019 , and December 31, 2018 , respectively. See Note 10 (Securitizations and Variable Interest Entities) for additional information on consolidated VIE assets and secured borrowings. Table 13.2: Pledged Assets (in millions) Sep 30, Dec 31, Related to trading activities: Debt securities $ 113,861 96,616 Equity securities 9,634 9,695 Total pledged assets related to trading activities (1) 123,495 106,311 Related to non-trading activities: Debt securities and other (2) 55,979 62,438 Mortgage loans held for sale and loans (3) 425,280 453,894 Total pledged assets related to non-trading activities 481,259 516,332 Total pledged assets $ 604,754 622,643 (1) Consists of assets of $51.6 billion and $45.5 billion at September 30, 2019 , and December 31, 2018 , respectively and off-balance sheet securities of $71.9 billion and $60.8 billion as of the same dates, respectively, that are pledged as collateral for repurchase agreements and other securities financings. Of these amounts, $123.5 billion and $106.2 billion at September 30, 2019 , and December 31, 2018 , respectively, are pledged as collateral under agreements that permit the secured parties to sell or repledge the collateral. (2) Includes assets with a carrying value of $3.6 billion and $4.2 billion (fair value of $3.6 billion and $ 4.1 billion ) at September 30, 2019 , and December 31, 2018 , respectively, which are pledged as collateral under repurchase agreements that do not permit the secured parties to sell or repledge the collateral. Also includes assets of $39 million and $68 million at September 30, 2019 , and December 31, 2018 , respectively, that are pledged as collateral under repurchase agreements that permit the secured parties to sell or repledge the collateral. Substantially all other assets are pledged as collateral pursuant to agreements that do not permit the secured party to sell or repledge the collateral. (3) Includes mortgage loans held for sale of $12.0 billion and $7.4 billion at September 30, 2019 , and December 31, 2018 , respectively. Substantially all of the mortgage loans held for sale and loans are pledged as collateral under agreements that do not permit the secured parties to sell or repledge the collateral. Amounts exclude $578 million and $1.2 billion at September 30, 2019 , and December 31, 2018 , respectively, of pledged loans recorded on our balance sheet representing certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. Securities Financing Activities We enter into resale and repurchase agreements and securities borrowing and lending agreements (collectively, “securities financing activities”) typically to finance trading positions (including securities and derivatives), acquire securities to cover short trading positions, accommodate customers’ financing needs, and settle other securities obligations. These activities are conducted through our broker-dealer subsidiaries and to a lesser extent through other bank entities. Most of our securities financing activities involve high quality, liquid securities such as U.S. Treasury securities and government agency securities, and to a lesser extent, less liquid securities, including equity securities, corporate bonds and asset-backed securities. We account for these transactions as collateralized financings in which we typically receive or pledge securities as collateral. We believe these financing transactions generally do not have material credit risk given the collateral provided and the related monitoring processes. OFFSETTING OF SECURITIES FINANCING ACTIVITIES Table 13.3 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. Substantially all 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 liability. Collateral we received includes securities or loans and is not recognized on our balance sheet. Collateral pledged or received 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 reported amount of such collateral to the amount of the related recognized asset or liability for each counterparty. In addition to the amounts included in Table 13.3 , we also have balance sheet netting related to derivatives that is disclosed in Note 15 (Derivatives). Table 13.3: Offsetting – Securities Financing Activities (in millions) Sep 30, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 135,178 112,662 Gross amounts offset in consolidated balance sheet (1) (12,527 ) (15,258 ) Net amounts in consolidated balance sheet (2) 122,651 97,404 Collateral not recognized in consolidated balance sheet (3) (121,864 ) (96,734 ) Net amount (4) $ 787 670 Liabilities: Repurchase and securities lending agreements Gross amounts recognized (5) $ 121,758 106,248 Gross amounts offset in consolidated balance sheet (1) (12,527 ) (15,258 ) Net amounts in consolidated balance sheet (6) 109,231 90,990 Collateral pledged but not netted in consolidated balance sheet (7) (108,981 ) (90,798 ) Net amount (8) $ 250 192 (1) Represents recognized amount of resale and repurchase agreements with counterparties subject to enforceable MRAs that have been offset in the consolidated balance sheet. (2) Includes $103.0 billion and $80.1 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at September 30, 2019 , and December 31, 2018 , respectively. Also includes securities purchased under long-term resale agreements (generally one year or more) classified in loans, which totaled $19.7 billion and $17.3 billion , at September 30, 2019 , and December 31, 2018 , respectively. (3) Represents the fair value of 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, 2019 , and December 31, 2018 , we have received total collateral with a fair value of $145.9 billion and $123.1 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 $73.4 billion at September 30, 2019 , and $60.8 billion at December 31, 2018 . (4) Represents the amount of our exposure that is not collateralized and/or is not subject to an enforceable MRA or MSLA. (5) For additional information on underlying collateral and contractual maturities, see the “Repurchase and Securities Lending Agreements” section in this Note. (6) Amount is classified in short-term borrowings on our consolidated balance sheet. (7) Represents the fair value of 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, 2019 , and December 31, 2018 , we have pledged total collateral with a fair value of $124.5 billion and $108.8 billion , respectively, of which, the counterparty does not have the right to sell or repledge $3.6 billion as of September 30, 2019 , and $4.4 billion as of December 31, 2018 . (8) Represents the amount of our obligation that is not covered by pledged collateral and/or is not subject to an enforceable MRA or MSLA. REPURCHASE AND SECURITIES LENDING AGREEMENTS Securities sold under repurchase agreements and securities lending arrangements are effectively short-term collateralized borrowings. In these transactions, we receive cash in exchange for transferring securities as collateral and recognize an obligation to reacquire the securities for cash at the transaction’s maturity. These types of transactions create risks, including (1) the counterparty may fail to return the securities at maturity, (2) the fair value of the securities transferred may decline below the amount of our obligation to reacquire the securities, and therefore create an obligation for us to pledge additional amounts, and (3) the counterparty may accelerate the maturity on demand, requiring us to reacquire the security prior to contractual maturity. We attempt to mitigate these risks in various ways. Most of our collateral consists of highly liquid securities. In addition, we underwrite and monitor the financial strength of our counterparties, monitor the fair value of collateral pledged relative to contractually required repurchase amounts, and monitor that our collateral is properly returned through the clearing and settlement process in advance of our cash repayment. Table 13.4 provides the gross amounts recognized on the balance sheet (before the effects of offsetting) of our liabilities for repurchase and securities lending agreements disaggregated by underlying collateral type. Table 13.4: Gross Obligations by Underlying Collateral Type (in millions) Sep 30, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 42,632 38,408 Securities of U.S. States and political subdivisions 22 159 Federal agency mortgage-backed securities 56,007 47,241 Non-agency mortgage-backed securities 1,794 1,875 Corporate debt securities 8,347 6,191 Asset-backed securities 2,384 2,074 Equity securities 2,038 992 Other 805 340 Total repurchases 114,029 97,280 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 127 222 Federal agency mortgage-backed securities — 2 Corporate debt securities 273 389 Equity securities (1) 7,322 8,349 Other 7 6 Total securities lending 7,729 8,968 Total repurchases and securities lending $ 121,758 106,248 (1) Equity securities are generally exchange traded and either re-hypothecated under margin lending agreements or obtained through contemporaneous securities borrowing transactions with other counterparties. Table 13.5 provides the contractual maturities of our gross obligations under repurchase and securities lending agreements. Table 13.5: Contractual Maturities of Gross Obligations (in millions) Overnight/continuous Up to 30 days 30-90 days >90 days Total gross obligation September 30, 2019 Repurchase agreements $ 101,997 4,042 3,836 4,154 114,029 Securities lending arrangements 7,583 — 146 — 7,729 Total repurchases and securities lending (1) $ 109,580 4,042 3,982 4,154 121,758 December 31, 2018 Repurchase agreements $ 86,574 3,244 2,153 5,309 97,280 Securities lending arrangements 8,669 — 299 — 8,968 Total repurchases and securities lending (1) $ 95,243 3,244 2,452 5,309 106,248 (1) Securities lending is executed under agreements that allow either party to terminate the transaction without notice, while repurchase agreements have a term structure to them that technically matures at a point in time. The overnight/continuous repurchase agreements require election of both parties to roll the trade rather than the election to terminate the arrangement as in securities lending. OTHER COMMITMENTS To meet the financing needs of our customers, we may enter into commitments to purchase debt and equity securities to provide capital for their funding, liquidity or other future needs. As of September 30, 2019 , and December 31, 2018 , we had commitments to purchase debt securities of $193 million and $335 million , respectively, and commitments to purchase equity securities of $2.4 billion and $2.5 billion , respectively. As part of maintaining our memberships in certain clearing organizations, we are required to stand ready to provide liquidity to sustain market clearing activity in the event unforeseen events occur or are deemed likely to occur. Certain of these obligations are guarantees of other members’ performance and accordingly are included in Other guarantees in Table 13.1. Also, we have commitments to purchase securities under resale agreements from central clearing organizations. We do not have any outstanding amounts funded, and the amount of our unfunded contractual commitments was $4.3 billion and $9.8 billion as of September 30, 2019 , and December 31, 2018 , respectively. Given the nature of these commitments, they are excluded from Table 6.4 (Unfunded Credit Commitments) in Note 6 (Loans and Allowance for Credit Losses). The Parent fully and unconditionally guarantees the payment of principal, interest, and any other amounts that may be due on securities that its 100% owned finance subsidiary, Wells Fargo Finance LLC, may issue. These guaranteed liabilities were $895 million and $5 million at September 30, 2019 and December 31, 2018 , respectively. These guarantees rank on parity with all of the Parent’s other unsecured and unsubordinated indebtedness.

Legal Actions

Legal Actions	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Legal Actions	Note 14: Legal Actions Wells Fargo and certain of our subsidiaries are involved in a number of judicial, regulatory, governmental, arbitration, and other proceedings or investigations concerning matters arising from the conduct of our business activities, and many of those proceedings and investigations expose Wells Fargo to potential financial loss. These proceedings and investigations include actions brought against Wells Fargo and/or our subsidiaries with respect to corporate-related matters and transactions in which Wells Fargo and/or our subsidiaries were involved. In addition, Wells Fargo and our subsidiaries may be requested to provide information or otherwise cooperate with government authorities in the conduct of investigations of other persons or industry groups. Although there can be no assurance as to the ultimate outcome, Wells Fargo and/or our subsidiaries have generally denied, or believe we have a meritorious defense and will deny, liability in all significant legal actions pending against us, including the matters described below, and we intend to defend vigorously each case, other than matters we describe as having settled. We establish accruals for legal actions when potential losses associated with the actions become probable and the costs can be reasonably estimated. For such accruals, we record the amount we consider to be the best estimate within a range of potential losses that are both probable and estimable; however, if we cannot determine a best estimate, then we record the low end of the range of those potential losses. The actual costs of resolving legal actions may be substantially higher or lower than the amounts accrued for those actions. ATM ACCESS FEE LITIGATION In October 2011, plaintiffs filed a putative class action, Mackmin, et al. v. Visa, Inc. et al. , against Wells Fargo & Company, Wells Fargo Bank, N.A., Visa, MasterCard, and several other banks in the United States District Court for the District of Columbia. Plaintiffs allege that the Visa and MasterCard requirement that if an ATM operator charges an access fee on Visa and MasterCard transactions, then that fee cannot be greater than the access fee charged for transactions on other networks, violates antitrust rules. Plaintiffs seek treble damages, restitution, injunctive relief, and attorneys’ fees where available under federal and state law. Two other antitrust cases that make similar allegations were filed in the same court, but these cases did not name Wells Fargo as a defendant. On February 13, 2013, the district court granted defendants’ motions to dismiss the three actions. Plaintiffs appealed the dismissals and, on August 4, 2015, the United States Court of Appeals for the District of Columbia Circuit vacated the district court’s decisions and remanded the three cases to the district court for further proceedings. On June 28, 2016, the United States Supreme Court granted defendants’ petitions for writ of certiorari to review the decisions of the United States Court of Appeals for the District of Columbia. On November 17, 2016, the United States Supreme Court dismissed the petitions as improvidently granted, and the three cases returned to the district court for further proceedings. AUTOMOBILE LENDING MATTERS On April 20, 2018, the Company entered into consent orders with the Office of the Comptroller of the Currency (OCC) and the Consumer Financial Protection Bureau (CFPB) to resolve, among other things, investigations by the agencies into the Company’s compliance risk management program and its past practices involving certain automobile collateral protection insurance (CPI) policies and, as discussed below, certain mortgage interest rate lock extensions. The consent orders require remediation to customers and the payment of a total of $1.0 billion in civil money penalties to the agencies. In July 2017, the Company announced a plan to remediate customers who may have been financially harmed due to issues related to automobile CPI policies purchased through a third-party vendor on their behalf. Multiple putative class action cases alleging, among other things, unfair and deceptive practices relating to these CPI policies, have been filed against the Company and consolidated into one multi-district litigation in the United States District Court for the Central District of California. The Company has reached an agreement in principle to resolve the multi-district litigation pursuant to which the Company has agreed to pay, consistent with its remediation obligations under the consent orders, approximately $424 million in remediation to customers with CPI policies placed between October 15, 2005, and September 30, 2016. The settlement amount is not incremental to the Company’s remediation obligations under the consent orders, but instead encompasses those obligations, including remediation payments to date. The settlement amount is subject to change as the Company finalizes its remediation activity under the consent orders. In addition, the Company has agreed to contribute $1 million to a common fund for the class. The district court granted preliminary approval of the settlement on August 5, 2019, and held a final approval hearing on October 28, 2019. A putative class of shareholders also filed a securities fraud class action against the Company and its executive officers alleging material misstatements and omissions of CPI-related information in the Company’s public disclosures. Former team members have also alleged retaliation for raising concerns regarding automobile lending practices. In addition, the Company has identified certain issues related to the unused portion of guaranteed automobile protection (GAP) waiver or insurance agreements between the customer and dealer and, by assignment, the lender, which will require remediation to customers in certain states. The Company is subject to a class action lawsuit in the United States District Court for the Central District of California alleging that customers are entitled to refunds in all states. Allegations related to the CPI and GAP programs are among the subjects of shareholder derivative lawsuits pending in federal and state court in California. The court dismissed the state court action in September 2018, but plaintiffs filed an amended complaint in November 2018. The parties to the state court action have entered into an agreement to resolve the action pursuant to which the Company will pay plaintiffs’ attorneys’ fees and undertake certain business and governance practices. The court granted preliminary approval of the settlement on July 12, 2019, and scheduled a final approval hearing for November 13, 2019. These and other issues related to the origination, servicing, and collection of consumer automobile loans, including related insurance products, have also subjected the Company to formal or informal inquiries, investigations, or examinations from federal and state government agencies. In December 2018, the Company entered into an agreement with all 50 state Attorneys General and the District of Columbia to resolve an investigation into the Company’s retail sales practices, CPI and GAP, and mortgage interest rate lock matters, pursuant to which the Company paid $575 million . CONSUMER DEPOSIT ACCOUNT RELATED REGULATORY INVESTIGATION The CFPB is conducting an investigation into whether customers were unduly harmed by the Company’s historical practices associated with the freezing (and, in many cases, closing) of consumer deposit accounts after the Company detected suspected fraudulent activity (by third parties or account holders) that affected those accounts. A former team member has brought a state court action alleging retaliation for raising concerns about these practices. FIDUCIARY AND CUSTODY ACCOUNT FEE CALCULATIONS Federal government agencies are conducting formal or informal inquiries, investigations, or examinations regarding fee calculations within certain fiduciary and custody accounts in the Company’s investment and fiduciary services business, which is part of the wealth management business within the Wealth and Investment Management (WIM) operating segment. The Company has determined that there have been instances of incorrect fees being applied to certain assets and accounts, resulting in both overcharges and undercharges to customers. FOREIGN EXCHANGE BUSINESS Federal government agencies, including the United States Department of Justice (Department of Justice), are investigating or examining certain activities in the Company’s foreign exchange business. These matters are at varying stages. The Company has responded, and continues to respond, to requests from a number of the foregoing and has discussed the potential resolution of some of the matters. The Company is in the process of providing remediation to customers that may have received pricing inconsistent with commitments made to those customers, and rebates to customers where historic pricing, while consistent with contracts entered into with those customers, does not conform to recently implemented pricing review standards for prior periods. INTERCHANGE LITIGATION Plaintiffs representing a putative class of merchants have filed putative class actions, and individual merchants have filed individual actions, against Wells Fargo Bank, N.A., Wells Fargo & Company, Wachovia Bank, N.A., and Wachovia Corporation regarding the interchange fees associated with Visa and MasterCard payment card transactions. Visa, MasterCard, and several other banks and bank holding companies are also named as defendants in these actions. These actions have been consolidated in the United States District Court for the Eastern District of New York. The amended and consolidated complaint asserts claims against defendants based on alleged violations of federal and state antitrust laws and seeks damages, as well as injunctive relief. Plaintiff merchants allege that Visa, MasterCard, and payment card issuing banks unlawfully colluded to set interchange rates. Plaintiffs also allege that enforcement of certain Visa and MasterCard rules and alleged tying and bundling of services offered to merchants are anticompetitive. Wells Fargo and Wachovia, along with other defendants and entities, are parties to Loss and Judgment Sharing Agreements, which provide that they, along with other entities, will share, based on a formula, in any losses from the Interchange Litigation. On July 13, 2012, Visa, MasterCard, and the financial institution defendants, including Wells Fargo, signed a memorandum of understanding with plaintiff merchants to resolve the consolidated class action and reached a separate settlement in principle of the consolidated individual actions. The settlement payments to be made by all defendants in the consolidated class and individual actions totaled approximately $6.6 billion before reductions applicable to certain merchants opting out of the settlement. The class settlement also provided for the distribution to class merchants of 10 basis points of default interchange across all credit rate categories for a period of eight consecutive months. The district court granted final approval of the settlement, which was appealed to the United States Court of Appeals for the Second Circuit by settlement objector merchants. Other merchants opted out of the settlement and are pursuing several individual actions. On June 30, 2016, the Second Circuit vacated the settlement agreement and reversed and remanded the consolidated action to the United States District Court for the Eastern District of New York for further proceedings. On November 23, 2016, prior class counsel filed a petition to the United States Supreme Court, seeking review of the reversal of the settlement by the Second Circuit, and the Supreme Court denied the petition on March 27, 2017. On November 30, 2016, the district court appointed lead class counsel for a damages class and an equitable relief class. The parties have entered into a settlement agreement to resolve the money damages class claims pursuant to which defendants will pay a total of approximately $6.2 billion , which includes approximately $5.3 billion of funds remaining from the 2012 settlement and $900 million in additional funding. The Company’s allocated responsibility for the additional funding is approximately $94.5 million . The court granted preliminary approval of the settlement in January 2019, and scheduled a final approval hearing for November 7, 2019. Several of the opt-out and direct action litigations were settled during the pendency of the Second Circuit appeal while others remain pending. Discovery is proceeding in the opt-out litigations and the equitable relief class case. LOW INCOME HOUSING TAX CREDITS Federal government agencies have undertaken formal or informal inquiries or investigations regarding the manner in which the Company purchased, and negotiated the purchase of, certain federal low income housing tax credits in connection with the financing of low income housing developments. MOBILE DEPOSIT PATENT LITIGATION The Company is a defendant in two separate cases brought by United Services Automobile Association (USAA) in the United States District Court for the Eastern District of Texas alleging claims of patent infringement regarding mobile deposit capture technology patents held by USAA. Trial in the first case commenced on October 30, 2019, and trial in the second case is scheduled for January 2020. MORTGAGE INTEREST RATE LOCK MATTERS On April 20, 2018, the Company entered into consent orders with the OCC and CFPB to resolve, among other things, investigations by the agencies into the Company’s compliance risk management program and its past practices involving certain automobile CPI policies and certain mortgage interest rate lock extensions. The consent orders require remediation to customers and the payment of a total of $1.0 billion in civil money penalties to the agencies. The Company was named in a putative class action, filed in the United States District Court for the Northern District of California, alleging violations of federal and state consumer fraud statutes relating to mortgage rate lock extension fees. The Company filed a motion to dismiss and the court granted the motion. Subsequently, a putative class action was filed in the United States District Court for the District of Oregon, raising similar allegations. The Company filed a motion to dismiss this action and the court granted the motion. In addition, former team members have asserted claims, including in pending litigation, that they were terminated for raising concerns regarding mortgage interest rate lock extension practices. Allegations related to mortgage interest rate lock extension fees are also among the subjects of two shareholder derivative lawsuits consolidated in California state court. The parties have entered into an agreement to resolve the state court action pursuant to which the Company will pay plaintiffs’ attorneys’ fees and undertake certain business and governance practices. The court granted preliminary approval of the settlement on July 12, 2019, and scheduled a final approval hearing for November 13, 2019. This matter has also subjected the Company to formal or informal inquiries, investigations, or examinations from other federal and state government agencies. In December 2018, the Company entered into an agreement with all 50 state Attorneys General and the District of Columbia to resolve an investigation into the Company’s retail sales practices, CPI and GAP, and mortgage interest rate lock matters, pursuant to which the Company paid $575 million . MORTGAGE LOAN MODIFICATION LITIGATION Plaintiffs representing a putative class of mortgage borrowers have filed separate putative class actions, Hernandez v. Wells Fargo, et al ., Coordes v. Wells Fargo, et al ., and Ryder v. Wells Fargo , against Wells Fargo Bank, N.A. in the United States District Court for the Northern District of California, the United States District Court for the District of Washington, and the United States District Court for the Southern District of Ohio, respectively. Plaintiffs allege that Wells Fargo improperly denied mortgage loan modifications or repayment plans to customers in the foreclosure process due to the overstatement of foreclosure attorneys’ fees that were included for purposes of determining whether a customer in the foreclosure process qualified for a mortgage loan modification or repayment plan. MORTGAGE-RELATED REGULATORY INVESTIGATIONS Federal and state government agencies, including the Department of Justice, have been investigating or examining certain mortgage related activities of Wells Fargo and predecessor institutions. Wells Fargo, for itself and for predecessor institutions, has responded, or continues to respond, to requests from these agencies seeking information regarding the origination, underwriting, and securitization of residential mortgages, including sub-prime mortgages. These agencies have advanced theories of purported liability with respect to certain of these activities. An agreement, pursuant to which the Company paid $2.09 billion , was reached in August 2018 to resolve the Department of Justice investigation, which related to certain 2005-2007 residential mortgage-backed securities activities. In addition, the Company reached an agreement with the Attorney General of the State of Illinois in November 2018 pursuant to which the Company paid $17 million in restitution to certain Illinois state pension funds to resolve a claim relating to certain residential mortgage-backed securities activities. Other financial institutions have entered into similar settlements with these agencies, the nature of which related to the specific activities of those financial institutions, including the imposition of significant financial penalties and remedial actions. OFAC RELATED INVESTIGATION The Company has self-identified an issue whereby certain foreign banks utilized a Wells Fargo software-based solution to conduct import/export trade-related financing transactions with countries and entities prohibited by the Office of Foreign Assets Control (OFAC) of the United States Department of the Treasury. We do not believe any funds related to these transactions flowed through accounts at Wells Fargo as a result of the aforementioned conduct. The Company has made voluntary self-disclosures to OFAC and is cooperating with an inquiry from the Department of Justice. ORDER OF POSTING LITIGATION Plaintiffs filed a series of putative class actions against Wachovia Bank, N.A. and Wells Fargo Bank, N.A., as well as many other banks, challenging the “high to low” order in which the banks post debit card transactions to consumer deposit accounts. Most of these actions were consolidated in multi-district litigation proceedings (MDL proceedings) in the United States District Court for the Southern District of Florida. The court in the MDL proceedings has certified a class of putative plaintiffs, and Wells Fargo moved to compel arbitration of the claims of unnamed class members. The court denied the motions to compel arbitration in October 2016, and Wells Fargo appealed this decision to the United States Court of Appeals for the Eleventh Circuit. In May 2018, the Eleventh Circuit ruled in Wells Fargo’s favor and found that Wells Fargo had not waived its arbitration rights and remanded the case to the district court for further proceedings. Plaintiffs filed a petition for rehearing to the Eleventh Circuit, which was denied in August 2018. Plaintiffs petitioned for certiorari from the United States Supreme Court, and that petition was denied in January 2019. On September 26, 2019, the district court entered an order granting Wells Fargo's motion and dismissed the claims of unnamed class members in favor of arbitration. RETAIL SALES PRACTICES MATTERS Federal, state, and local government agencies, including the Department of Justice, the United States Securities and Exchange Commission (SEC), and the United States Department of Labor; and state attorneys general, including the New York Attorney General, as well as Congressional committees, have undertaken formal or informal inquiries, investigations or examinations arising out of certain retail sales practices of the Company that were the subject of settlements with the CFPB, the OCC, and the Office of the Los Angeles City Attorney announced by the Company on September 8, 2016. These matters are at varying stages. The Company has responded, and continues to respond, to requests from a number of the foregoing. In October 2018, the Company entered into an agreement to resolve the New York Attorney General’s investigation pursuant to which the Company paid $65 million to the State of New York. In December 2018, the Company entered into an agreement with all 50 state Attorneys General and the District of Columbia to resolve an investigation into the Company’s retail sales practices, CPI and GAP, and mortgage interest rate lock matters, pursuant to which the Company paid $575 million . The Company continues to engage in resolution discussions with the Department of Justice and the SEC, although there can be no assurance as to the outcome of these discussions. In addition, a number of lawsuits have also been filed by non-governmental parties seeking damages or other remedies related to these retail sales practices. First, various class plaintiffs purporting to represent consumers who allege that they received products or services without their authorization or consent have brought separate putative class actions against the Company in the United States District Court for the Northern District of California and various other jurisdictions. In April 2017, the Company entered into a settlement agreement in the first-filed action, Jabbari v. Wells Fargo Bank, N.A ., pursuant to which the Company will pay $142 million to resolve claims regarding certain products or services provided without authorization or consent for the time period May 1, 2002 to April 20, 2017. The district court issued an order granting final approval of the settlement on June 14, 2018. Several appeals of the district court’s order granting final approval of the settlement have been filed with the United States Court of Appeals for the Ninth Circuit. Second, Wells Fargo shareholders brought a consolidated securities fraud class action in the United States District Court for the Northern District of California alleging certain misstatements and omissions in the Company’s disclosures related to sales practices matters. The Company entered into a settlement agreement to resolve this matter pursuant to which the Company paid $480 million . The district court issued an order granting final approval of the settlement on December 20, 2018. Third, Wells Fargo shareholders have brought numerous shareholder derivative lawsuits asserting breach of fiduciary duty claims, among others, against current and former directors and officers for their alleged involvement with and failure to detect and prevent sales practices issues. These actions are currently pending in the United States District Court for the Northern District of California and California state court as coordinated proceedings. An additional lawsuit asserting similar claims pending in Delaware state court has been stayed. The parties have entered into settlement agreements to resolve the shareholder derivative lawsuits pursuant to which insurance carriers will pay the Company approximately $240 million for alleged damage to the Company, and the Company will pay plaintiffs’ attorneys’ fees. Preliminary approval of the settlements has been granted, and the federal court held a final approval hearing on August 1, 2019, and the state court scheduled a final approval hearing for November 13, 2019. Fourth, multiple employment litigation matters have been brought against Wells Fargo, including an Employee Retirement Income Security Act (ERISA) class action in the United States District Court for the District of Minnesota on behalf of 401(k) plan participants that has been dismissed and is now on appeal; a class action in the United States District Court for the Northern District of California on behalf of team members who allege that they protested sales practice misconduct and/or were terminated for not meeting sales goals that has now been dismissed, and we have entered into a framework with plaintiffs’ counsel to address individual claims that have been asserted; various wage and hour class actions brought in federal and state court in California and Pennsylvania (which have been settled), and in New Jersey on behalf of non-exempt branch based team members alleging that sales pressure resulted in uncompensated overtime; and multiple single plaintiff Sarbanes-Oxley Act complaints and state law whistleblower actions filed with the United States Department of Labor or in various state courts alleging adverse employment actions for raising sales practice misconduct issues. RMBS TRUSTEE LITIGATION In November 2014, a group of institutional investors (Institutional Investor Plaintiffs), including funds affiliated with BlackRock, Inc., filed a putative class action in the United States District Court for the Southern District of New York against Wells Fargo Bank, N.A., alleging claims against the Company in its capacity as trustee for a number of residential mortgage-backed securities (RMBS) trusts (Federal Court Complaint). Similar complaints have been filed against other trustees in various courts, including in the Southern District of New York, in New York state court, and in other states, by RMBS investors. The Federal Court Complaint alleged that Wells Fargo Bank, N.A., as trustee, caused losses to investors and asserted causes of action based upon, among other things, the trustee’s alleged failure to notify and enforce repurchase obligations of mortgage loan sellers for purported breaches of representations and warranties, notify investors of alleged events of default, and abide by appropriate standards of care following alleged events of default. Plaintiffs sought money damages in an unspecified amount, reimbursement of expenses, and equitable relief. In December 2014 and December 2015, certain other investors filed additional complaints alleging similar claims against Wells Fargo Bank, N.A. in the Southern District of New York (Related Federal Cases). In January 2016, the Southern District of New York entered an order in connection with the Federal Court Complaint dismissing claims related to certain of the trusts at issue (Dismissed Trusts). The Company’s subsequent motion to dismiss the Federal Court Complaint and the complaints for the Related Federal Cases was granted in part and denied in part in March 2017. In May 2017, the Company filed third-party complaints against certain investment advisors affiliated with the Institutional Investor Plaintiffs seeking contribution with respect to claims alleged in the Federal Court Complaint (Third-Party Claims). In December 2016, the Institutional Investor Plaintiffs filed a new putative class action complaint in New York state court in respect of 261 RMBS trusts, including the Dismissed Trusts, for which Wells Fargo Bank, N.A. serves or served as trustee (State Court Action). A complaint raising similar allegations to those in the Federal Court Complaint was filed in May 2016 in New York state court by IKB International and IKB Deutsche Industriebank (IKB Action). In July 2017, certain of the plaintiffs from the State Court Action filed a civil complaint relating to Wells Fargo Bank, N.A.’s setting aside reserves for legal fees and expenses in connection with the liquidation of eleven RMBS trusts at issue in the State Court Action (Declaratory Judgment Action). The complaint sought, among other relief, declarations that the Company is not entitled to indemnification, the advancement of funds, or the taking of reserves from trust funds for legal fees and expenses it incurs in defending the claims in the State Court Action. In May 2019, the New York state court approved a settlement agreement among the Institutional Investor Plaintiffs and the Company pursuant to which, among other terms, the Company paid $43 million to resolve the Federal Court Complaint and the State Court Action. The settlement also resolved the Third Party Claims and the Declaratory Judgment Action. The settlement did not affect the Related Federal Cases or the IKB Action, which remain pending. SEMINOLE TRIBE TRUSTEE LITIGATION The Seminole Tribe of Florida filed a complaint in Florida state court alleging that Wells Fargo, as trustee, charged excess fees in connection with the administration of a minor’s trust and failed to invest the assets of the trust prudently. The complaint was later amended to include three individual current and former beneficiaries as plaintiffs and to remove the Tribe as a party to the case. In December 2016, the Company filed a motion to dismiss the amended complaint on the grounds that the Tribe is a necessary party and that the individual beneficiaries lack standing to bring claims. The motion was denied in June 2018. Trial is scheduled for February 2020. WHOLESALE BANKING CONSENT ORDER INVESTIGATION On November 19, 2015, the Company entered into a consent order with the OCC, pursuant to which the Wholesale Banking group was required to implement customer due diligence standards that include collection of current beneficial ownership information for certain business customers. The Company is responding to inquiries from various federal government agencies regarding potentially inappropriate conduct in connection with the collection of beneficial ownership information. OUTLOOK As described above, the Company establishes accruals for legal actions when potential losses associated with the actions become probable and the costs can be reasonably estimated. The high end of the range of reasonably possible potential losses in excess of the Company’s accrual for probable and estimable losses was approximately $3.6 billion as of September 30, 2019 . The outcomes of legal actions are unpredictable and subject to significant uncertainties, and it is inherently difficult to determine whether any loss is probable or even possible. It is also inherently difficult to estimate the amount of any loss and there may be matters for which a loss is probable or reasonably possible but not currently estimable. Accordingly, actual losses may be in excess of the established accrual or the range of reasonably possible loss. Wells Fargo is unable to determine whether the ultimate resolution of the retail sales practices matters will have a material adverse effect on its consolidated financial condition. Based on information currently available, advice of counsel, available insurance coverage, and established reserves, Wells Fargo believes that the eventual outcome of other actions against Wells Fargo and/or its subsidiaries will not, individually or in the aggregate, have a material adverse effect on Wells Fargo’s consolidated financial condition. However, it is possible that the ultimate resolution of a matter, if unfavorable, may be material to Wells Fargo’s results of operations for any particular period.

Derivatives

Derivatives	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Note 15: Derivatives We 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 certain derivatives as hedging instruments in a qualifying hedge accounting relationship (fair value or cash flow hedge). Our remaining derivatives consist of economic hedges that do not qualify for hedge accounting, and derivatives held for customer accommodation trading or other purposes. For more information on our derivative activities, see Note 17 (Derivatives) in our 2018 Form 10-K. Table 15.1 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. Table 15.1: Notional or Contractual Amounts and Fair Values of Derivatives September 30, 2019 December 31, 2018 Notional or contractual amount Fair value Notional or contractual amount Fair value (in millions) Derivative assets Derivative liabilities Derivative Derivative Derivatives designated as hedging instruments Interest rate contracts $ 182,909 2,922 1,460 177,511 2,237 636 Foreign exchange contracts (1) 32,408 305 1,662 34,176 573 1,376 Total derivatives designated as qualifying hedging instruments 3,227 3,122 2,810 2,012 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts (2) 303,430 355 379 173,215 849 369 Equity contracts 17,790 1,575 79 13,920 1,362 79 Foreign exchange contracts 18,305 386 58 19,521 225 80 Credit contracts – protection purchased 900 29 — 100 27 — Subtotal 2,345 516 2,463 528 Customer accommodation trading and other derivatives: Interest rate contracts 11,588,606 26,956 22,627 9,162,821 15,349 15,303 Commodity contracts 80,927 1,338 2,589 66,173 1,588 2,336 Equity contracts 255,258 6,003 8,085 217,890 6,183 5,931 Foreign exchange contracts 354,182 5,626 5,962 364,982 5,916 5,657 Credit contracts – protection sold 12,347 12 69 11,741 76 182 Credit contracts – protection purchased 23,494 81 16 20,880 175 98 Subtotal 40,016 39,348 29,287 29,507 Total derivatives not designated as hedging instruments 42,361 39,864 31,750 30,035 Total derivatives before netting 45,588 42,986 34,560 32,047 Netting (3) (30,908 ) (33,038 ) (23,790 ) (23,548 ) Total $ 14,680 9,948 10,770 8,499 (1) The notional amount for foreign exchange contracts at September 30, 2019 , and December 31, 2018 , excludes $10.1 billion and $11.2 billion , respectively, for certain derivatives that are combined for designation as a hedge on a single instrument. (2) Includes economic hedge derivatives used to hedge the risk of changes in the fair value of residential MSRs, MLHFS, loans, derivative loan commitments and other interests held. (3) Represents balance sheet netting of derivative asset and liability balances, related cash collateral and portfolio level counterparty valuation adjustments. See Table 15.2 for further information. Table 15.2 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 and 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” column in the following table includes $40.3 billion and $39.4 billion of gross derivative assets and liabilities, respectively, at September 30, 2019 , and $30.9 billion and $28.4 billion , respectively, at December 31, 2018 , 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 $5.3 billion and $3.6 billion , respectively, at September 30, 2019 , and $3.7 billion and $3.6 billion , respectively, at December 31, 2018 , 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 netting 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. We do not net non-cash collateral that we receive and pledge on the balance sheet. For disclosure purposes, we present the fair value of this non-cash collateral in the column titled “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 Table 15.2 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 include bilateral contractual arrangements that are not cleared through a central clearing organization but are typically subject to master netting arrangements. The percentage of our bilateral derivative transactions outstanding at period end in such markets, based on gross fair value, is provided within the following table. Other derivative contracts executed in over-the-counter or exchange-traded markets are settled through a central clearing organization and are excluded from this percentage. 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 13 (Guarantees, Pledged Assets and Collateral, and Other Commitments). Table 15.2: Gross Fair Values of Derivative Assets and Liabilities (in millions) Gross amounts recognized Gross amounts offset in consolidated balance sheet (1) Net amounts in consolidated balance sheet Gross amounts not offset in consolidated balance sheet (Disclosure-only netting) (2) Net amounts Percent exchanged in over-the-counter market (3) September 30, 2019 Derivative assets Interest rate contracts $ 30,233 (19,854 ) 10,379 (456 ) 9,923 97 % Commodity contracts 1,338 (875 ) 463 (1 ) 462 68 Equity contracts 7,578 (5,178 ) 2,400 (43 ) 2,357 69 Foreign exchange contracts 6,317 (4,926 ) 1,391 (16 ) 1,375 100 Credit contracts – protection sold 12 (9 ) 3 — 3 88 Credit contracts – protection purchased 110 (66 ) 44 (1 ) 43 97 Total derivative assets $ 45,588 (30,908 ) 14,680 (517 ) 14,163 Derivative liabilities Interest rate contracts $ 24,466 (21,637 ) 2,829 (905 ) 1,924 96 % Commodity contracts 2,589 (680 ) 1,909 (3 ) 1,906 87 Equity contracts 8,164 (5,096 ) 3,068 (274 ) 2,794 79 Foreign exchange contracts 7,682 (5,554 ) 2,128 (171 ) 1,957 100 Credit contracts – protection sold 69 (64 ) 5 (2 ) 3 98 Credit contracts – protection purchased 16 (7 ) 9 — 9 97 Total derivative liabilities $ 42,986 (33,038 ) 9,948 (1,355 ) 8,593 December 31, 2018 Derivative assets Interest rate contracts $ 18,435 (12,029 ) 6,406 (80 ) 6,326 90 % Commodity contracts 1,588 (849 ) 739 (4 ) 735 57 Equity contracts 7,545 (5,318 ) 2,227 (755 ) 1,472 78 Foreign exchange contracts 6,714 (5,355 ) 1,359 (35 ) 1,324 100 Credit contracts – protection sold 76 (73 ) 3 — 3 12 Credit contracts – protection purchased 202 (166 ) 36 (1 ) 35 78 Total derivative assets $ 34,560 (23,790 ) 10,770 (875 ) 9,895 Derivative liabilities Interest rate contracts $ 16,308 (13,152 ) 3,156 (567 ) 2,589 92 % Commodity contracts 2,336 (727 ) 1,609 (8 ) 1,601 85 Equity contracts 6,010 (3,877 ) 2,133 (110 ) 2,023 75 Foreign exchange contracts 7,113 (5,522 ) 1,591 (188 ) 1,403 100 Credit contracts – protection sold 182 (180 ) 2 (2 ) — 67 Credit contracts – protection purchased 98 (90 ) 8 — 8 11 Total derivative liabilities $ 32,047 (23,548 ) 8,499 (875 ) 7,624 (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 $336 million and $353 million related to derivative assets and $111 million and $152 million related to derivative liabilities at September 30, 2019 , and December 31, 2018 , respectively. Cash collateral totaled $4.3 billion and $6.7 billion , netted against derivative assets and liabilities, respectively, at September 30, 2019 , and $3.7 billion and $3.6 billion , respectively, at December 31, 2018 . (2) Represents the fair value of 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. (3) Fair Value and Cash Flow Hedges For fair value hedges, we use interest rate swaps to convert certain of our fixed-rate long-term debt and time certificates of deposit 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 mortgage loans held for sale. For cash flow hedges, we use interest rate swaps to hedge the variability in interest payments received on certain floating-rate commercial loans and paid on certain floating-rate debt due to changes in the contractually specified interest rate. We estimate $235 million pre-tax of deferred net losses related to cash flow hedges in OCI at September 30, 2019 , will be reclassified into net interest income during the next twelve months. The deferred losses expected to be reclassified into net interest income are predominantly related to discontinued hedges of floating rate loans. For cash flow hedges as of September 30, 2019 , we are hedging the variability of future cash flows for a maximum of 11 years . For more information on our accounting hedges, see Note 1 (Summary of Significant Accounting Policies) and Note 16 (Derivatives) in our 2018 Form 10-K. Table 15.3 shows the net gains (losses) related to derivatives in fair value and cash flow hedging relationships. Table 15.3: Gains (Losses) Recognized in Consolidated Statement of Income on Fair Value and Cash Flow Hedging Relationships Net interest income Noninterest income (in millions) Debt securities Loans Mortgage loans held for sale Deposits Long-term debt Other Total Quarter ended September 30, 2019 Total amounts presented in the consolidated statement of income $ 3,666 10,982 232 (2,324 ) (1,780 ) 1,528 12,304 Gains (losses) on fair value hedging relationships Interest contracts Amounts related to interest settlements on derivatives (1) (1 ) — 1 26 53 — 79 Recognized on derivatives (628 ) — (3 ) 30 2,880 — 2,279 Recognized on hedged items 631 — 1 (30 ) (2,809 ) — (2,207 ) Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 9 — — — (115 ) — (106 ) Recognized on derivatives (3) (2 ) — — — 86 (918 ) (834 ) Recognized on hedged items 3 — — — (124 ) 899 778 Net income (expense) recognized on fair value hedges 12 — (1 ) 26 (29 ) (19 ) (11 ) Gains (losses) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (73 ) — — — — (73 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (2 ) — (2 ) Net income (expense) recognized on cash flow hedges $ — (73 ) — — (2 ) — (75 ) Nine months ended September 30, 2019 Total amounts presented in the consolidated statement of income $ 11,388 33,652 579 (6,563 ) (5,607 ) 2,846 36,295 Gains (losses) on fair value hedging relationships: Interest contracts Amounts related to interest settlements on derivatives (1) 29 — 1 (4 ) 53 — 79 Recognized on derivatives (2,531 ) — (36 ) 588 7,813 — 5,834 Recognized on hedged items 2,544 — 32 (563 ) (7,646 ) — (5,633 ) Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 29 — — — (385 ) — (356 ) Recognized on derivatives (3) (11 ) — — — 583 (994 ) (422 ) Recognized on hedged items 12 — — — (576 ) 975 411 Net income (expense) recognized on fair value hedges 72 — (3 ) 21 (158 ) (19 ) (87 ) Gains (losses) on cash flow hedging relationships: Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (228 ) — — 1 — (227 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (6 ) — (6 ) Net income (expense) recognized on cash flow hedges $ — (228 ) — — (5 ) — (233 ) (continued on following page) (continued from previous page) Net interest income Noninterest income (in millions) Debt securities Loans Mortgage loans held for sale Deposits Long-term debt Other Total Quarter ended September 30, 2018 Total amounts presented in the consolidated statement of income $ 3,595 11,116 210 (1,499 ) (1,667 ) 633 12,388 Gains (losses) on fair value hedging relationships: Interest contracts Amounts related to interest settlements on derivatives (1) (34 ) — (1 ) (10 ) 39 — (6 ) Recognized on derivatives 386 — 10 (58 ) (1,119 ) — (781 ) Recognized on hedged items (410 ) — (12 ) 61 1,101 — 740 Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 8 — — — (118 ) — (110 ) Recognized on derivatives (3) 2 — — — (58 ) (139 ) (195 ) Recognized on hedged items (3 ) — — — 126 139 262 Net income (expense) recognized on fair value hedges (51 ) — (3 ) (7 ) (29 ) — (90 ) Gains (losses) on cash flow hedging relationships: Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (78 ) — — — — (78 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (1 ) — (1 ) Net income (expense) recognized on cash flow hedges $ — (78 ) — — (1 ) — (79 ) Nine months ended September 30, 2018 Total amounts presented in the consolidated statement of income $ 10,603 32,607 587 (3,857 ) (4,901 ) 1,720 36,759 Gains (losses) on fair value hedging relationships: Interest contracts Amounts related to interest settlements on derivatives (1) (158 ) — (3 ) (35 ) 291 — 95 Recognized on derivatives 1,692 1 21 (248 ) (4,331 ) — (2,865 ) Recognized on hedged items (1,730 ) (1 ) (27 ) 233 4,215 — 2,690 Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 23 — — — (300 ) — (277 ) Recognized on derivatives (3) 8 — — — (132 ) (889 ) (1,013 ) Recognized on hedged items (5 ) — — — 153 820 968 Net income (expense) recognized on fair value hedges (170 ) — (9 ) (50 ) (104 ) (69 ) (402 ) Gains (losses) on cash flow hedging relationships: Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (215 ) — — — — (215 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (1 ) — (1 ) Net income (expense) recognized on cash flow hedges $ — (215 ) — — (1 ) — (216 ) (1) Includes changes in fair value due to the passage of time associated with the non-zero fair value amount at hedge inception. (2) The third quarter and first nine months of 2019 included $5 million and $19 million , respectively, and the third quarter and first nine months of 2018 included $(5) million and $(3) million of the time value component recognized as net interest income (expense) on forward derivatives hedging foreign currency debt securities and long-term debt that were excluded from the assessment of hedge effectiveness. (3) For certain fair value hedges of foreign currency risk, changes in fair value of cross-currency swaps attributable to changes in cross-currency basis spreads are excluded from the assessment of hedge effectiveness and recorded in other comprehensive income. See Note 21 (Other Comprehensive Income) for the amounts recognized in other comprehensive income. (4) See Note 21 (Other Comprehensive Income) for details of amounts reclassified to net income. Table 15.4 shows the carrying amount and associated cumulative basis adjustment related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships. Table 15.4: Hedged Items in Fair Value Hedging Relationship Hedged Items Currently Designated Hedged Items No Longer Designated (1) (in millions) Carrying Amount of Assets/(Liabilities) (2)(4) Hedge Accounting Basis Adjustment Assets/(Liabilities) (3) Carrying Amount of Assets/(Liabilities) (4) Hedge Accounting Basis Adjustment September 30, 2019 Available-for-sale debt securities (5) $ 37,112 1,623 9,435 274 Mortgage loans held for sale 1,231 (2 ) 864 (1 ) Deposits (48,824 ) (449 ) (33 ) — Long-term debt (124,854 ) (8,847 ) (25,699 ) 222 December 31, 2018 Available-for-sale debt securities (5) 37,857 (157 ) 4,938 238 Mortgage loans held for sale 448 7 — — Deposits (56,535 ) 115 — — Long-term debt (104,341 ) (742 ) (25,539 ) 366 (1) Represents hedged items no longer designated in qualifying fair value hedging relationships for which an associated basis adjustment exists at the balance sheet date. (2) Does not include the carrying amount of hedged items where only foreign currency risk is the designated hedged risk. The carrying amount excluded $1.1 billion for debt securities and $(5.0) billion for long-term debt as of September 30, 2019 , and $1.6 billion for debt securities and $(6.3) billion for long-term debt as of December 31, 2018 . (3) The balance includes $770 million and $122 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of September 30, 2019 , and $1.4 billion and $66 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of December 31, 2018 , on terminated hedges whereby the hedged items have subsequently been re-designated into existing hedges. (4) Represents the full carrying amount of the hedged asset or liability item as of the balance sheet date, except for circumstances in which only a portion of the asset or liability was designated as the hedged item in which case only the portion designated is presented. (5) Carrying amount represents the amortized cost. Derivatives Not Designated as Hedging Instruments We use economic hedge derivatives to hedge the risk of changes in the fair value of certain residential MLHFS, residential MSRs measured at fair value, derivative loan commitments and other interests held. We also use economic hedge derivatives to mitigate the periodic earnings volatility caused by mismatches between the changes in fair value of the hedged item and hedging instrument recognized on our fair value accounting hedges. The resulting gain or loss on these economic hedge derivatives is reflected in mortgage banking noninterest income, net gains (losses) from equity investments and other noninterest income. The derivatives used to hedge MSRs measured at fair value, resulted in net derivative gains (losses) of $678 million and $2.8 billion in the third quarter and first nine months of 2019 , respectively, and $(501) million and $(2.0) billion in the third quarter and first nine months of 2018 , respectively, which are included in mortgage banking noninterest income. The aggregate fair value of these derivatives was a net asset of $6 million at September 30, 2019 , and net asset of $757 million at December 31, 2018 . 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. Loan commitments for mortgage loans that we intend to sell are considered derivatives. The aggregate fair value of derivative loan commitments on the balance sheet was a net positive fair value of $32 million at September 30, 2019 , and a net positive fair value of $60 million at December 31, 2018 , and is included in the caption “Interest rate contracts” under “Customer accommodation trading and other derivatives” in Table 15.1 in this Note. For more information on economic hedges and other derivatives, see Note 16 (Derivatives) to Financial Statements in our 2018 Form 10-K. Table 15.5 shows the net gains (losses) recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 15.5: Gains (Losses) on Derivatives Not Designated as Hedging Instruments Noninterest income (in millions) Mortgage banking Net gains (losses) from equity securities Net gains (losses) from trading activities Other Total Quarter ended September 30, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 736 — — — 736 Equity contracts — (1,375 ) — (6 ) (1,381 ) Foreign exchange contracts — — — 263 263 Credit contracts — — — (11 ) (11 ) Subtotal (2) 736 (1,375 ) — 246 (393 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) 95 — (355 ) — (260 ) Commodity contracts — — 65 — 65 Equity contracts — — 284 10 294 Foreign exchange contracts — — 78 — 78 Credit contracts — — (10 ) — (10 ) Subtotal 95 — 62 10 167 Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 831 (1,375 ) 62 256 (226 ) Nine months ended September 30, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,419 — — 7 2,426 Equity contracts — (2,918 ) — (6 ) (2,924 ) Foreign exchange contracts — — — 403 403 Credit contracts — — — (1 ) (1 ) Subtotal (2) 2,419 (2,918 ) — 403 (96 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) 392 — (861 ) — (469 ) Commodity contracts — — 143 — 143 Equity contracts — — (2,975 ) (396 ) (3,371 ) Foreign exchange contracts — — 9 — 9 Credit contracts — — (70 ) — (70 ) Subtotal 392 — (3,754 ) (396 ) (3,758 ) Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 2,811 (2,918 ) (3,754 ) 7 (3,854 ) (continued on following page) (continued from previous page) Noninterest income (in millions) Mortgage banking Net gains (losses) from equity securities Net gains (losses) from trading activities Other Total Quarter ended September 30, 2018 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (334 ) — — (1 ) (335 ) Equity contracts — (719 ) — 8 (711 ) Foreign exchange contracts — — — 78 78 Credit contracts — — — 4 4 Subtotal (2) (334 ) (719 ) — 89 (964 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) (67 ) — 298 (1 ) 230 Commodity contracts — — 14 — 14 Equity contracts — — (1,147 ) (112 ) (1,259 ) Foreign exchange contracts — — 258 — 258 Credit contracts — — (28 ) — (28 ) Subtotal (67 ) — (605 ) (113 ) (785 ) Net gains (losses) recognized related to derivatives not designated as hedging instruments $ (401 ) (719 ) (605 ) (24 ) (1,749 ) Nine months ended September 30, 2018 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (1,114 ) — — 5 (1,109 ) Equity contracts — (1,317 ) — 13 (1,304 ) Foreign exchange contracts — — — 405 405 Credit contracts — — — (2 ) (2 ) Subtotal (2) (1,114 ) (1,317 ) — 421 (2,010 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) (372 ) — 865 (1 ) 492 Commodity contracts — — 88 — 88 Equity contracts — — (33 ) (378 ) (411 ) Foreign exchange contracts — — 659 — 659 Credit contracts — — (22 ) — (22 ) Subtotal (372 ) — 1,557 (379 ) 806 Net gains (losses) recognized related to derivatives not designated as hedging instruments $ (1,486 ) (1,317 ) 1,557 42 (1,204 ) (1) Mortgage banking amounts for the third quarter and first nine months of 2019 are comprised of gains (losses) of $678 million and $2.8 billion , respectively, related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $58 million and $(376) million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. The corresponding amounts for the third quarter and first nine months of 2018 are comprised of gains (losses) of $(501) million and $(2.0) billion offset by gains (losses) of $167 million and $926 million , respectively. (2) Includes hedging gains (losses) of $0 million and $(36) million for the third quarter and first nine months of 2019 , respectively, and $10 million and $46 million for the third quarter and first nine months of 2018 , respectively, which partially offset hedge accounting ineffectiveness. (3) Amounts presented in mortgage banking noninterest income are gains (losses) on derivative loan commitments. Credit Derivatives Credit derivative contracts are arrangements whose value is derived from the transfer of credit risk of a reference asset or entity from one party (the purchaser of credit protection) to another party (the seller of credit protection). We use credit derivatives 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 sold 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. Table 15.6 provides details of sold and purchased credit derivatives. Table 15.6: Sold and Purchased Credit Derivatives Notional amount (in millions) Fair value liability Protection sold (A) Protection sold – non- investment grade Protection purchased with identical underlyings (B) Net protection sold (A) - (B) Other protection purchased Range of maturities September 30, 2019 Credit default swaps on: Corporate bonds $ 1 2,686 771 1,988 698 2,189 2019 - 2029 Structured products 25 78 73 67 11 112 2022 - 2047 Credit protection on: Default swap index — 3,498 574 1,312 2,186 6,596 2019 - 2029 Commercial mortgage-backed securities index 32 330 76 305 25 50 2047 - 2058 Asset-backed securities index 8 41 41 41 — 1 2045 - 2046 Other 3 5,714 5,371 — 5,714 11,733 2019 - 2048 Total credit derivatives $ 69 12,347 6,906 3,713 8,634 20,681 December 31, 2018 Credit default swaps on: Corporate bonds $ 59 2,037 441 1,374 663 1,460 2019 - 2027 Structured products 62 133 128 121 12 113 2022 - 2047 Credit protection on: Default swap index 1 3,618 582 1,998 1,620 2,896 2019 - 2028 Commercial mortgage-backed securities index 49 389 109 363 26 51 2047 - 2058 Asset-backed securities index 9 42 42 42 — 1 2045 - 2046 Other 2 5,522 5,327 — 5,522 12,561 2018 - 2048 Total credit derivatives $ 182 11,741 6,629 3,898 7,843 17,082 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 a 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 $11.7 billion at September 30, 2019 , and $7.4 billion at December 31, 2018 , for which we posted $9.9 billion and $5.6 billion , respectively, in collateral in the normal course of business. A credit rating below investment grade is the credit-risk-related contingent feature that if triggered requires the maximum amount of collateral to be posted. If the credit rating of our debt had been downgraded below investment grade, we would have been required to post additional collateral of $1.8 billion for both September 30, 2019 , and December 31, 2018 , or potentially settle the contract in an amount equal to its fair value. Some contracts require that we provide more collateral than the fair value of derivatives that are in a net liability position if a downgrade occurs. 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.

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Note 16: 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 Table 16.2 in this Note. From time to time, we may be required to record fair value adjustments on a nonrecurring basis. These nonrecurring fair value adjustments typically involve application of LOCOM accounting, measurement alternative accounting for nonmarketable equity securities or write-downs of individual assets. Assets recorded on a nonrecurring basis are presented in Table 16.1 3 in this Note. See Note 1 (Summary of Significant Accounting Policies) in our 2018 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 that are not recorded at fair value, see Note 18 (Fair Values of Assets and Liabilities) in our 2018 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 that are 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. We do not classify an equity security in the fair value hierarchy if we use the non-published net asset value (NAV) per share (or its equivalent) that has been communicated to us as an investor as a practical expedient to measure fair value. We use NAV per share as the fair value measurement for certain nonmarketable equity fund investments. Marketable equity securities with published NAVs continue to be classified in the fair value hierarchy. Fair Value Measurements from Vendors For certain assets and liabilities, we obtain fair value measurements from vendors and record the unadjusted fair value in our financial statements. For additional information, see Note 18 (Fair Values of Assets and Liabilities) in our 2018 Form 10-K. The unadjusted fair value measurements obtained from brokers for available-for-sale debt securities were $45 million in Level 2 assets and $126 million in Level 3 assets at September 30, 2019, and $45 million and $129 million at December 31, 2018, respectively. Table 16.1 presents unadjusted fair value measurements obtained from third-party pricing services by fair value hierarchy level. Fair value measurements obtained from third-party pricing services that we have adjusted to determine the fair value recorded in our financial statements are excluded from Table 16.1 . Table 16.1: Fair Value Measurements obtained from Third-Party Pricing Services September 30, 2019 December 31, 2018 (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Trading debt securities 399 272 — 899 256 — Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 13,550 2,999 — 10,399 2,949 — Securities of U.S. states and political subdivisions — 40,150 38 — 48,377 43 Mortgage-backed securities — 171,917 37 — 160,162 41 Other debt securities (1) — 39,556 619 — 44,292 758 Total available-for-sale debt securities 13,550 254,622 694 10,399 255,780 842 Equity securities: Marketable — 161 — — 158 — Nonmarketable — — — — 1 — Total equity securities — 161 — — 159 — Derivative assets 17 — — 17 — — Derivative liabilities (18 ) — — (12 ) — — (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 Table 16.2 presents the balances of assets and liabilities recorded at fair value on a recurring basis. Table 16.2: Fair Value on a Recurring Basis (in millions) Level 1 Level 2 Level 3 Netting (1) Total September 30, 2019 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 22,313 3,141 — — 25,454 Securities of U.S. states and political subdivisions — 3,273 — — 3,273 Collateralized loan obligations — 653 232 — 885 Corporate debt securities — 12,286 33 — 12,319 Mortgage-backed securities — 35,771 — — 35,771 Asset-backed securities — 1,383 — — 1,383 Other trading debt securities — 21 7 — 28 Total trading debt securities 22,313 56,528 272 — 79,113 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 13,550 2,999 — — 16,549 Securities of U.S. states and political subdivisions — 40,150 353 — 40,503 Mortgage-backed securities: Federal agencies — 167,535 — — 167,535 Residential — 853 — — 853 Commercial — 4,189 37 — 4,226 Total mortgage-backed securities — 172,577 37 — 172,614 Corporate debt securities 37 5,489 367 — 5,893 Collateralized loan and other debt obligations (2) — 30,401 609 — 31,010 Asset-backed securities: Automobile loans and leases — 860 — — 860 Home equity loans — — — — — Other asset-backed securities — 3,688 118 — 3,806 Total asset-backed securities — 4,548 118 — 4,666 Other debt securities — 1 — — 1 Total available-for-sale debt securities 13,587 256,165 1,484 (3) — 271,236 Mortgage loans held for sale — 15,696 1,249 — 16,945 Loans held for sale — 1,500 1 — 1,501 Loans — — 185 — 185 Mortgage servicing rights (residential) — — 11,072 — 11,072 Derivative assets: Interest rate contracts 45 29,933 255 — 30,233 Commodity contracts — 1,335 3 — 1,338 Equity contracts 2,326 3,580 1,672 — 7,578 Foreign exchange contracts 17 6,291 9 — 6,317 Credit contracts — 56 66 — 122 Netting — — — (30,908 ) (30,908 ) Total derivative assets 2,388 41,195 2,005 (30,908 ) 14,680 Equity securities - excluding securities at NAV: Marketable 30,782 293 — — 31,075 Nonmarketable — 19 7,130 — 7,149 Total equity securities 30,782 312 7,130 — 38,224 Total assets included in the fair value hierarchy $ 69,070 371,396 23,398 (30,908 ) 432,956 Equity securities at NAV (4) 144 Total assets recorded at fair value 433,100 Derivative liabilities: Interest rate contracts $ (43 ) (24,311 ) (112 ) — (24,466 ) Commodity contracts — (2,556 ) (33 ) — (2,589 ) Equity contracts (1,705 ) (4,584 ) (1,875 ) — (8,164 ) Foreign exchange contracts (18 ) (7,629 ) (35 ) — (7,682 ) Credit contracts — (57 ) (28 ) — (85 ) Netting — — — 33,038 33,038 Total derivative liabilities (1,766 ) (39,137 ) (2,083 ) 33,038 (9,948 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (10,821 ) (107 ) — — (10,928 ) Mortgage-backed securities — (69 ) — — (69 ) Corporate debt securities — (4,820 ) — — (4,820 ) Equity securities (2,473 ) — — — (2,473 ) Other securities — — — — — Total short sale liabilities (13,294 ) (4,996 ) — — (18,290 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (15,060 ) (44,133 ) (2,085 ) 33,038 (28,240 ) (1) Represents balance sheet netting of derivative asset and liability balances, related cash collateral and portfolio level counterparty valuation adjustments. See Note 15 (Derivatives) for additional information. (2) Includes collateralized debt obligations of $609 million . (3) A majority of the balance consists of securities that are 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. (4) Consists of certain nonmarketable equity securities that are measured at fair value using NAV per share (or its equivalent) as a practical expedient and are excluded from the fair value hierarchy. (continued on following page) (continued from previous page) (in millions) Level 1 Level 2 Level 3 Netting (1) Total December 31, 2018 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 20,525 2,892 — — 23,417 Securities of U.S. states and political subdivisions — 3,272 3 — 3,275 Collateralized loan obligations — 673 237 — 910 Corporate debt securities — 10,723 34 — 10,757 Mortgage-backed securities — 30,715 — — 30,715 Asset-backed securities — 893 — — 893 Other trading debt securities — 6 16 — 22 Total trading debt securities 20,525 49,174 290 — 69,989 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 10,399 2,949 — — 13,348 Securities of U.S. states and political subdivisions — 48,820 444 — 49,264 Mortgage-backed securities: Federal agencies — 153,203 — — 153,203 Residential — 2,775 — — 2,775 Commercial — 4,184 41 — 4,225 Total mortgage-backed securities — 160,162 41 — 160,203 Corporate debt securities 34 5,867 370 — 6,271 Collateralized loan and other debt obligations (2) — 34,543 800 — 35,343 Asset-backed securities: Automobile loans and leases — 925 — — 925 Home equity loans — 112 — — 112 Other asset-backed securities — 4,056 389 — 4,445 Total asset-backed securities — 5,093 389 — 5,482 Other debt securities — 1 — — 1 Total available-for-sale debt securities 10,433 257,435 2,044 (3) — 269,912 Mortgage loans held for sale — 10,774 997 — 11,771 Loans held for sale — 1,409 60 — 1,469 Loans — — 244 — 244 Mortgage servicing rights (residential) — — 14,649 — 14,649 Derivative assets: Interest rate contracts 46 18,294 95 — 18,435 Commodity contracts — 1,535 53 — 1,588 Equity contracts 1,648 4,582 1,315 — 7,545 Foreign exchange contracts 17 6,689 8 — 6,714 Credit contracts — 179 99 — 278 Netting — — — (23,790 ) (23,790 ) Total derivative assets 1,711 31,279 1,570 (23,790 ) 10,770 Equity securities - excluding securities at NAV: Marketable 23,205 757 — — 23,962 Nonmarketable — 24 5,468 — 5,492 Total equity securities 23,205 781 5,468 — 29,454 Total assets included in the fair value hierarchy $ 55,874 350,852 25,322 (23,790 ) 408,258 Equity securities at NAV (4) 102 Total assets recorded at fair value 408,360 Derivative liabilities: Interest rate contracts $ (21 ) (16,217 ) (70 ) — (16,308 ) Commodity contracts — (2,287 ) (49 ) — (2,336 ) Equity contracts (1,492 ) (3,186 ) (1,332 ) — (6,010 ) Foreign exchange contracts (12 ) (7,067 ) (34 ) — (7,113 ) Credit contracts — (216 ) (64 ) — (280 ) Netting — — — 23,548 23,548 Total derivative liabilities (1,525 ) (28,973 ) (1,549 ) 23,548 (8,499 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (11,850 ) (411 ) — — (12,261 ) Mortgage-backed securities — (47 ) — — (47 ) Corporate debt securities — (4,505 ) — — (4,505 ) Equity securities (2,902 ) (2 ) — — (2,904 ) Other securities — (3 ) — — (3 ) Total short sale liabilities (14,752 ) (4,968 ) — — (19,720 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (16,277 ) (33,941 ) (1,551 ) 23,548 (28,221 ) (1) Represents balance sheet netting of derivative asset and liability balances and related cash collateral. See Note 15 (Derivatives) for additional information. (2) Includes collateralized debt obligations of $800 million . (3) A significant portion of the balance consists of securities that are 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. (4) Consists of certain nonmarketable equity securities that are measured at fair value using NAV per share (or its equivalent) as a practical expedient and are excluded from the fair value hierarchy. 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. The amounts reported as transfers represent the fair value as of the beginning of the quarter in which the transfer occurred. The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2019 , are presented in Table 16.3 . Table 16.3: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended September 30, 2019 Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (4) (in millions) Balance, beginning of period Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period Quarter ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — — — — Collateralized loan obligations 249 (11 ) — (4 ) — (2 ) 232 (13 ) Corporate debt securities 44 (2 ) — (4 ) — (5 ) 33 1 Other trading debt securities 14 (1 ) — (6 ) — — 7 — Total trading debt securities 307 (14 ) — (14 ) — (7 ) 272 (12 ) (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 391 — — (38 ) — — 353 — Mortgage-backed securities: Residential — — — — — — — — Commercial 41 — (1 ) (3 ) — — 37 — Total mortgage-backed securities 41 — (1 ) (3 ) — — 37 — Corporate debt securities 383 6 (8 ) (14 ) — — 367 — Collateralized loan and other debt obligations 649 5 (12 ) (33 ) — — 609 — Asset-backed securities: Other asset-backed securities 341 1 1 (72 ) — (153 ) 118 — Total asset-backed securities 341 1 1 (72 ) — (153 ) 118 — Total available-for-sale debt securities 1,805 12 (20 ) (160 ) — (153 ) 1,484 — (6) Mortgage loans held for sale 1,115 22 — (6 ) 121 (3 ) 1,249 22 (7) Loans held for sale 12 — — (12 ) 1 — 1 — Loans 202 — — (17 ) — — 185 (2 ) (7) Mortgage servicing rights (residential)(8) 12,096 (1,558 ) — 534 — — 11,072 (962 ) (7) Net derivative assets and liabilities: Interest rate contracts 205 71 — (133 ) — — 143 30 Commodity contracts (29 ) (85 ) — 61 — 23 (30 ) (6 ) Equity contracts (228 ) (298 ) — 263 — 60 (203 ) (80 ) Foreign exchange contracts (10 ) 17 — (33 ) — — (26 ) — Credit contracts 45 (8 ) — 1 — — 38 (8 ) Total derivative contracts (17 ) (303 ) — 159 — 83 (78 ) (64 ) (9) Equity securities: Nonmarketable 7,110 13 — — 7 — 7,130 13 Total equity securities 7,110 13 — — 7 — 7,130 13 (10) Other liabilities (2 ) — — — — — (2 ) — (7) (1) See Table 16.4 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) Assets and liabilities transferred out of level 3 are classified as level 2, except for $153 million of asset-backed securities that were transferred to loans during third quarter 2019. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.4 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, 2019 . Table 16.4: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended September 30, 2019 (in millions) Purchases Sales Issuances Settlements Net Quarter ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 107 (100 ) — (11 ) (4 ) Corporate debt securities 3 (7 ) — — (4 ) Other trading debt securities — — — (6 ) (6 ) Total trading debt securities 110 (107 ) — (17 ) (14 ) Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 12 (50 ) (38 ) Mortgage-backed securities: Residential — — — — — Commercial — — — (3 ) (3 ) Total mortgage-backed securities — — — (3 ) (3 ) Corporate debt securities 1 — — (15 ) (14 ) Collateralized loan and other debt obligations — — — (33 ) (33 ) Asset-backed securities: Other asset-backed securities — (4 ) 10 (78 ) (72 ) Total asset-backed securities — (4 ) 10 (78 ) (72 ) Total available-for-sale debt securities 1 (4 ) 22 (179 ) (160 ) Mortgage loans held for sale 23 (45 ) 87 (71 ) (6 ) Loans held for sale — — — (12 ) (12 ) Loans 1 — 2 (20 ) (17 ) Mortgage servicing rights (residential) (1) — (4 ) 538 — 534 Net derivative assets and liabilities: Interest rate contracts — — (1 ) (132 ) (133 ) Commodity contracts — — — 61 61 Equity contracts — — — 263 263 Foreign exchange contracts — — — (33 ) (33 ) Credit contracts 4 (3 ) — — 1 Total derivative contracts 4 (3 ) (1 ) 159 159 Equity securities: Nonmarketable — — — — — Total equity securities — — — — — Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (continued from previous page) Table 16.5 presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2018 . Table 16.5: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended September 30, 2018 Balance, beginning of period Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (in millions) Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period (4) Quarter ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — — — — 3 — Collateralized loan obligations 291 2 — (26 ) — (4 ) 263 1 Corporate debt securities 36 2 — 7 — (10 ) 35 2 Other trading debt securities 17 — — — — — 17 1 Total trading debt securities 347 4 — (19 ) — (14 ) 318 4 (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 559 — (3 ) 39 — — 595 — Mortgage-backed securities: Residential — — 1 (1 ) — — — — Commercial 53 (1 ) — (11 ) — — 41 (1 ) Total mortgage-backed securities 53 (1 ) 1 (12 ) — — 41 (1 ) Corporate debt securities 443 2 (2 ) (55 ) — — 388 — Collateralized loan and other debt obligations 1,037 44 (33 ) (205 ) — — 843 — Asset-backed securities: Other asset-backed securities 401 (4 ) (2 ) 7 — — 402 (3 ) Total asset-backed securities 401 (4 ) (2 ) 7 — — 402 (3 ) Total available-for-sale debt securities 2,493 41 (39 ) (226 ) — — 2,269 (4 ) (6) Mortgage loans held for sale 986 (12 ) — (8 ) 16 (2 ) 980 (12 ) (7) Loans held for sale 20 1 — 1 — — 22 — Loans 321 — — (35 ) — — 286 (5 ) (7) Mortgage servicing rights (residential) (8) 15,411 69 — 500 — — 15,980 531 (7) Net derivative assets and liabilities: Interest rate contracts (41 ) (103 ) — 36 — — (108 ) (43 ) Commodity contracts 26 29 — 6 — — 61 38 Equity contracts (339 ) (30 ) — 89 — 6 (274 ) (74 ) Foreign exchange contracts (15 ) (10 ) — 4 — — (21 ) (4 ) Credit contracts 24 5 — (2 ) — — 27 3 Total derivative contracts (345 ) (109 ) — 133 — 6 (315 ) (80 ) (9) Equity securities: Nonmarketable 5,806 817 — (295 ) — — 6,328 770 Total equity securities 5,806 817 — (295 ) — — 6,328 770 (10) Other liabilities (2 ) — — — — — (2 ) — (7) (1) See Table 16.6 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) All assets and liabilities transferred out of level 3 are classified as level 2. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.6 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, 2018 . Table 16.6: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended September 30, 2018 (in millions) Purchases Sales Issuances Settlements Net Quarter ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 75 (70 ) — (31 ) (26 ) Corporate debt securities 8 (1 ) — — 7 Other trading debt securities — — — — — Total trading debt securities 83 (71 ) — (31 ) (19 ) Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 69 (30 ) 39 Mortgage-backed securities: Residential — — — (1 ) (1 ) Commercial — — — (11 ) (11 ) Total mortgage-backed securities — — — (12 ) (12 ) Corporate debt securities — — — (55 ) (55 ) Collateralized loan and other debt obligations — (149 ) — (56 ) (205 ) Asset-backed securities: Other asset-backed securities — — 96 (89 ) 7 Total asset-backed securities — — 96 (89 ) 7 Total available-for-sale debt securities — (149 ) 165 (242 ) (226 ) Mortgage loans held for sale 17 (89 ) 104 (40 ) (8 ) Loans held for sale 1 — — — 1 Loans 2 — 5 (42 ) (35 ) Mortgage servicing rights (residential) (1) — (2 ) 502 — 500 Net derivative assets and liabilities: Interest rate contracts — — — 36 36 Commodity contracts — — — 6 6 Equity contracts 3 (37 ) — 123 89 Foreign exchange contracts — — — 4 4 Credit contracts 1 (2 ) — (1 ) (2 ) Total derivative contracts 4 (39 ) — 168 133 Equity securities: Nonmarketable — — — (295 ) (295 ) Total equity securities — — — (295 ) (295 ) Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the first nine months of 2019 , are presented in Table 16.7 . Table 16.7: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Nine months ended September 30, 2019 Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (4) (in millions) Balance, beginning of period Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period Nine months ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — (2 ) — (1 ) — — Collateralized loan obligations 237 (16 ) — 13 — (2 ) 232 (23 ) Corporate debt securities 34 1 — 3 1 (6 ) 33 3 Other trading debt securities 16 (3 ) — (6 ) — — 7 — Total trading debt securities 290 (18 ) — 8 1 (9 ) 272 (20 ) (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 444 1 5 (48 ) — (49 ) 353 — Mortgage-backed securities: Residential — — — — — — — — Commercial 41 — (1 ) (3 ) — — 37 — Total mortgage-backed securities 41 — (1 ) (3 ) — — 37 — Corporate debt securities 370 7 (5 ) (5 ) — — 367 — Collateralized loan and other debt obligations 800 18 (22 ) (187 ) — — 609 — Asset-backed securities: Other asset-backed securities 389 1 — (119 ) — (153 ) 118 — Total asset-backed securities 389 1 — (119 ) — (153 ) 118 — Total available-for-sale debt securities 2,044 27 (23 ) (362 ) — (202 ) 1,484 — (6) Mortgage loans held for sale 997 74 — (94 ) 281 (9 ) 1,249 75 (7) Loans held for sale 60 — — (4 ) 38 (93 ) 1 — Loans 244 1 — (60 ) — — 185 (6 ) (7) Mortgage servicing rights (residential) (8) 14,649 (4,570 ) — 993 — — 11,072 (2,931 ) (7) Net derivative assets and liabilities: Interest rate contracts 25 495 — (377 ) — — 143 179 Commodity contracts 4 (211 ) — 152 2 23 (30 ) (6 ) Equity contracts (17 ) (402 ) — 194 7 15 (203 ) (205 ) Foreign exchange contracts (26 ) 27 — (27 ) — — (26 ) 2 Credit contracts 35 (3 ) — 6 — — 38 2 Total derivative contracts 21 (94 ) — (52 ) 9 38 (78 ) (28 ) (9) Equity securities: Nonmarketable 5,468 1,663 — (1 ) 12 (12 ) 7,130 1,664 Total equity securities 5,468 1,663 — (1 ) 12 (12 ) 7,130 1,664 (10) Other liabilities (2 ) — — — — — (2 ) — (7) (1) See Table 16.8 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) Assets and liabilities transferred out of level 3 are classified as level 2, except for $153 million of asset-backed securities that were transferred to loans during third quarter 2019. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.8 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 first nine months of 2019 . Table 16.8: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Nine months ended September 30, 2019 (in millions) Purchases Sales Issuances Settlements Net Nine months ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — (2 ) (2 ) Collateralized loan obligations 281 (252 ) — (16 ) 13 Corporate debt securities 14 (11 ) — — 3 Other trading debt securities — — — (6 ) (6 ) Total trading debt securities 295 (263 ) — (24 ) 8 Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 67 (115 ) (48 ) Mortgage-backed securities: Residential — — — — — Commercial — — — (3 ) (3 ) Total mortgage-backed securities — — — (3 ) (3 ) Corporate debt securities 12 — — (17 ) (5 ) Collateralized loan and other debt obligations — — — (187 ) (187 ) Asset-backed securities: Other asset-backed securities — (9 ) 133 (243 ) (119 ) Total asset-backed securities — (9 ) 133 (243 ) (119 ) Total available-for-sale debt securities 12 (9 ) 200 (565 ) (362 ) Mortgage loans held for sale 69 (185 ) 187 (165 ) (94 ) Loans held for sale 12 (2 ) — (14 ) (4 ) Loans 3 — 7 (70 ) (60 ) Mortgage servicing rights (residential) (1) — (286 ) 1,279 — 993 Net derivative assets and liabilities: Interest rate contracts — — (1 ) (376 ) (377 ) Commodity contracts — — — 152 152 Equity contracts — — — 194 194 Foreign exchange contracts — — — (27 ) (27 ) Credit contracts 12 (6 ) — — 6 Total derivative contracts 12 (6 ) (1 ) (57 ) (52 ) Equity securities: Nonmarketable — (1 ) — — (1 ) Total equity securities — (1 ) — — (1 ) Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the first nine months of 2018 , are presented in Table 16.9 . Table 16.9: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Nine months ended September 30, 2018 Balance, beginning of period Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (in millions) Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period (4) Nine months ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — — — — 3 — Collateralized loan obligations 354 (2 ) — (85 ) — (4 ) 263 — Corporate debt securities 31 2 — 13 — (11 ) 35 4 Other trading debt securities 19 (2 ) — — — — 17 — Total trading debt securities 407 (2 ) — (72 ) — (15 ) 318 4 (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 925 5 (5 ) (51 ) — (279 ) 595 — Mortgage-backed securities: Residential 1 — — (1 ) — — — — Commercial 75 — (2 ) (32 ) — — 41 (2 ) Total mortgage-backed securities 76 — (2 ) (33 ) — — 41 (2 ) Corporate debt securities 407 4 2 (25 ) — — 388 — Collateralized loan and other debt obligations 1,020 55 20 (252 ) — — 843 — Asset-backed securities: Other asset-backed securities 566 4 (10 ) (158 ) — — 402 (3 ) Total asset-backed securities 566 4 (10 ) (158 ) — — 402 (3 ) Total available-for-sale debt securities 2,994 68 5 (519 ) — (279 ) 2,269 (5 ) (6) Mortgage loans held for sale 998 (46 ) — (20 ) 56 (8 ) 980 (42 ) (7) Loans held for sale 14 2 — (15 ) 21 — 22 — Loans 376 (1 ) — (89 ) — — 286 (9 ) (7) Mortgage servicing rights (residential) (8) 13,625 801 — 1,554 — — 15,980 2,206 (7) Net derivative assets and liabilities: Interest rate contracts 71 (511 ) — 332 — — (108 ) (163 ) Commodity contracts 19 59 — (20 ) 3 — 61 60 Equity contracts (511 ) 27 — 153 — 57 (274 ) (67 ) Foreign exchange contracts 7 (35 ) — 7 — — (21 ) (23 ) Credit contracts 36 1 — (10 ) — — 27 (6 ) Total derivative contracts (378 ) (459 ) — 462 3 57 (315 ) (199 ) (9) Equity securities: Nonmarketable 5,203 1,510 — (391 ) 10 (4 ) 6,328 1,457 Total equity securities 5,203 1,510 — (391 ) 10 (4 ) 6,328 1,457 (10) Other liabilities (3 ) 1 — — — — (2 ) — (7) (1) See Table 16.10 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) All assets and liabilities transferred out of level 3 are classified as level 2. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.10 presents gross purchases, sales, issuances and settlements related to the changes in Level 3 assets

Preferred Stock

Preferred Stock	9 Months Ended
	Sep. 30, 2019
Preferred Stock [Abstract]
Preferred Stock	Note 17: 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 authorized, issued and outstanding preferred stock is presented in the following two tables along with the Employee Stock Ownership Plan (ESOP) Cumulative Convertible Preferred Stock. Table 17.1: Preferred Stock Shares September 30, 2019 December 31, 2018 Liquidation preference per share Shares authorized and designated Liquidation preference per share Shares authorized and designated DEP Shares Dividend Equalization Preferred Shares (DEP) $ 10 97,000 $ 10 97,000 Series I Floating Class A Preferred Stock (1) 100,000 25,010 100,000 25,010 Series K Floating Non-Cumulative Perpetual Class A Preferred Stock (2)(3) 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 25,000 26,400 Series Q 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 69,000 25,000 69,000 Series R 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 34,500 25,000 34,500 Series S 5.90% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,000 25,000 80,000 Series T 6.00% Non-Cumulative Perpetual Class A Preferred Stock 25,000 32,200 25,000 32,200 Series U 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,000 25,000 80,000 Series V 6.00% Non-Cumulative Perpetual Class A Preferred Stock 25,000 40,000 25,000 40,000 Series W 5.70% Non-Cumulative Perpetual Class A Preferred Stock 25,000 40,000 25,000 40,000 Series X 5.50% Non-Cumulative Perpetual Class A Preferred Stock 25,000 46,000 25,000 46,000 Series Y 5.625% Non-Cumulative Perpetual Class A Preferred Stock 25,000 27,600 25,000 27,600 ESOP Cumulative Convertible Preferred Stock (4) — 1,071,418 — 1,406,460 Total 9,251,728 9,586,770 (1) Series I preferred stock issuance relates to trust preferred securities. See Note 10 (Securitizations and Variable Interest Entities) for additional information. This issuance has a floating interest rate that is the greater of three-month LIBOR plus 0.93% and 5.56975%. (2) Floating rate for Preferred Stock, Series K, is three-month LIBOR plus 3.77%. (3) In third quarter 2019, 1,550,000 shares of Preferred Stock, Series K, were redeemed. (4) See the ESOP Cumulative Convertible Preferred Stock section in this Note for additional information about the liquidation preference for the ESOP Cumulative Convertible Preferred Stock. Table 17.2: Preferred Stock – Shares Issued and Carrying Value September 30, 2019 December 31, 2018 (in millions, except shares) Shares issued and outstanding Liquidation preference value Carrying value Discount Shares issued and outstanding Liquidation preference value Carrying value Discount DEP Shares Dividend Equalization Preferred Shares (DEP) 96,546 $ — — — 96,546 $ — — — Series I (1)(2) Floating Class A Preferred Stock 25,010 2,501 2,501 — 25,010 2,501 2,501 — Series K (1)(3)(4) Floating Non-Cumulative Perpetual Class A Preferred Stock 1,802,000 1,802 1,546 256 3,352,000 3,352 2,876 476 Series L (1) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 3,967,995 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 — 25,000 625 625 — Series Q (1) 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 69,000 1,725 1,725 — 69,000 1,725 1,725 — Series R (1) 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 33,600 840 840 — 33,600 840 840 — Series S (1) 5.90% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 2,000 2,000 — 80,000 2,000 2,000 — Series T (1) 6.00% Non-Cumulative Perpetual Class A Preferred Stock 32,000 800 800 — 32,000 800 800 — Series U (1) 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 2,000 2,000 — 80,000 2,000 2,000 — Series V (1) 6.00% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series W (1) 5.70% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series X (1) 5.50% Non-Cumulative Perpetual Class A Preferred Stock 46,000 1,150 1,150 — 46,000 1,150 1,150 — Series Y (1) 5.625% Non-Cumulative Perpetual Class A Preferred Stock 27,600 690 690 — 27,600 690 690 — ESOP Cumulative Convertible Preferred Stock 1,071,418 1,072 1,072 — 1,406,460 1,407 1,407 — Total 7,492,169 $ 22,573 21,549 1,024 9,377,216 $ 24,458 23,214 1,244 (1) Preferred shares qualify as Tier 1 capital. (2) Floating rate for Preferred Stock, Series I, is the greater of three-month LIBOR plus 0.93% and 5.56975%. (3) Floating rate for Preferred Stock, Series K, is three-month LIBOR plus 3.77%. (4) In third quarter 2019, 1,550,000 shares of Preferred Stock, Series K, were redeemed. 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. Table 17.3: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Sep 30, Dec 31, Sep 30, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 254,945 336,945 255 337 7.00 % 8.00 % 2017 192,210 222,210 192 222 7.00 8.00 2016 197,450 233,835 198 234 9.30 10.30 2015 116,784 144,338 117 144 8.90 9.90 2014 136,151 174,151 136 174 8.70 9.70 2013 97,948 133,948 98 134 8.50 9.50 2012 49,134 77,634 49 78 10.00 11.00 2011 26,796 61,796 27 62 9.00 10.00 2010 (1) — 21,603 — 22 9.50 10.50 Total ESOP Preferred Stock (2) 1,071,418 1,406,460 $ 1,072 1,407 Unearned ESOP shares (3) $ (1,143 ) (1,502 ) (1) In April 2019, all of the 2010 ESOP Preferred Stock was converted into common stock. (2) At September 30, 2019, and December 31, 2018, additional paid-in capital included $71 million and $95 million , respectively, related to ESOP preferred stock. (3) 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.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Note 18: Revenue from Contracts with Customers Our revenue includes net interest income on financial instruments and noninterest income. Table 18.1 presents our revenue by operating segment. The “Other” segment for each of the tables below includes the elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for WIM customers served through Community Banking distribution channels. For additional description of our operating segments, including additional financial information and the underlying management accounting process, see Note 22 (Operating Segments). We adopted ASU 2014-09 – Revenue from Contracts with Customers on a modified retrospective basis as of January 1, 2018. For details on the impact of the adoption of this ASU, see Note 1 (Summary of Significant Accounting Policies) in our 2018 Form 10-K. Table 18.1 : Revenue by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Net interest income (1) $ 6,769 7,338 4,382 4,726 989 1,102 (515 ) (594 ) 11,625 12,572 Noninterest income: Service charges on deposit accounts 742 700 477 505 4 3 (4 ) (4 ) 1,219 1,204 Trust and investment fees: Brokerage advisory, commissions and other fees 504 470 62 79 2,272 2,268 (492 ) (483 ) 2,346 2,334 Trust and investment management 203 231 121 112 615 727 (210 ) (235 ) 729 835 Investment banking (26 ) (17 ) 510 476 — 3 — — 484 462 Total trust and investment fees 681 684 693 667 2,887 2,998 (702 ) (718 ) 3,559 3,631 Card fees 936 925 90 92 2 1 (1 ) (1 ) 1,027 1,017 Other fees: Lending related charges and fees (1)(2) 58 67 290 303 2 1 (1 ) (1 ) 349 370 Cash network fees 118 121 — — — — — — 118 121 Commercial real estate brokerage commissions — — 170 129 — — — — 170 129 Wire transfer and other remittance fees 71 67 49 52 2 2 (1 ) (1 ) 121 120 All other fees(1) 69 89 31 20 1 1 (1 ) — 100 110 Total other fees 316 344 540 504 5 4 (3 ) (2 ) 858 850 Mortgage banking (1) 339 747 128 101 (3 ) (3 ) 2 1 466 846 Insurance (1) 11 21 74 76 17 19 (11 ) (12 ) 91 104 Net gains from trading activities (1) 19 10 247 135 10 13 — — 276 158 Net gains (losses) on debt securities (1) (1 ) 1 4 53 — 3 — — 3 57 Net gains (losses) from equity securities (1) 822 274 135 50 (1 ) 92 — — 956 416 Lease income (1) — — 402 453 — — — — 402 453 Other income of the segment (1) 605 772 (230 ) (58 ) 1,231 (6 ) (78 ) (75 ) 1,528 633 Total noninterest income 4,470 4,478 2,560 2,578 4,152 3,124 (797 ) (811 ) 10,385 9,369 Revenue $ 11,239 11,816 6,942 7,304 5,141 4,226 (1,312 ) (1,405 ) 22,010 21,941 Nine months ended Sep 30, Community Banking Wholesale Banking Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Net interest income (1) $ 21,083 21,879 13,451 13,951 3,127 3,325 (1,630 ) (1,804 ) 36,031 37,351 Noninterest income: Service charges on deposit accounts 2,056 1,971 1,462 1,569 12 12 (11 ) (12 ) 3,519 3,540 Trust and investment fees: Brokerage advisory, commissions and other fees 1,433 1,413 214 224 6,644 6,896 (1,434 ) (1,442 ) 6,857 7,091 Trust and investment management 612 684 352 335 1,978 2,201 (632 ) (700 ) 2,310 2,520 Investment banking (64 ) (27 ) 1,397 1,401 4 4 (4 ) — 1,333 1,378 Total trust and investment fees 1,981 2,070 1,963 1,960 8,626 9,101 (2,070 ) (2,142 ) 10,500 10,989 Card fees 2,723 2,650 271 275 5 4 (3 ) (3 ) 2,996 2,926 Other fees: Lending related charges and fees (1)(2) 188 212 856 914 6 5 (5 ) (5 ) 1,045 1,126 Cash network fees 344 364 — 3 — — — — 344 367 Commercial real estate brokerage commissions — — 356 323 — — — — 356 323 Wire transfer and other remittance fees 206 197 146 157 6 6 (3 ) (3 ) 355 357 All other fees (1) 245 246 83 75 1 2 (1 ) — 328 323 Total other fees 983 1,019 1,441 1,472 13 13 (9 ) (8 ) 2,428 2,496 Mortgage banking (1) 1,635 2,284 300 269 (9 ) (8 ) 6 5 1,932 2,550 Insurance (1) 33 65 227 233 51 55 (31 ) (33 ) 280 320 Net gains from trading activities (1) 13 33 806 514 42 45 1 — 862 592 Net gains on debt securities (1) 51 (1 ) 97 96 — 4 — — 148 99 Net gains (losses) from equity securities (1) 1,894 1,367 328 232 170 (105 ) — — 2,392 1,494 Lease income (1) — — 1,269 1,351 — — — — 1,269 1,351 Other income of the segment (1) 2,342 2,115 (497 ) (142 ) 1,233 (27 ) (232 ) (226 ) 2,846 1,720 Total noninterest income 13,711 13,573 7,667 7,829 10,143 9,094 (2,349 ) (2,419 ) 29,172 28,077 Revenue $ 34,794 35,452 21,118 21,780 13,270 12,419 (3,979 ) (4,223 ) 65,203 65,428 (1) Most of our revenue is not within the scope of Accounting Standards Update (ASU) 2014-09 – Revenue from Contracts with Customers , and additional details are included in other footnotes to our financial statements. The scope explicitly excludes net interest income as well as many other revenues for financial assets and liabilities, including loans, leases, securities, and derivatives. (2) Represents combined amount of previously reported “Charges and fees on loans” and “Letters of credit fees.” We provide services to customers which have related performance obligations that we complete to recognize revenue. Our revenues are generally recognized either immediately upon the completion of our service or over time as we perform services. Any services performed over time generally require that we render services each period and therefore we measure our progress in completing these services based upon the passage of time. SERVICE CHARGES ON DEPOSIT ACCOUNTS are earned on depository accounts for commercial and consumer customers and include fees for account and overdraft services. Account charges include fees for periodic account maintenance activities and event-driven services such as stop payment fees. Our obligation for event-driven services is satisfied at the time of the event when the service is delivered, while our obligation for maintenance services is satisfied over the course of each month. Our obligation for overdraft services is satisfied at the time of the overdraft. Table 18.2 presents our service charges on deposit accounts by operating segment. Table 18.2 : Service Charges on Deposit Accounts by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Overdraft fees $ 533 484 2 1 — — — — 535 485 Account charges 209 216 475 504 4 3 (4 ) (4 ) 684 719 Service charges on deposit accounts $ 742 700 477 505 4 3 (4 ) (4 ) 1,219 1,204 Nine months ended Sep 30, Community Wholesale Wealth and Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Overdraft fees $ 1,446 1,312 4 4 1 1 — — 1,451 1,317 Account charges 610 659 1,458 1,565 11 11 (11 ) (12 ) 2,068 2,223 Service charges on deposit accounts $ 2,056 1,971 1,462 1,569 12 12 (11 ) (12 ) 3,519 3,540 BROKERAGE ADVISORY, COMMISSIONS AND OTHER FEES are earned for providing full-service and discount brokerage services predominantly to retail brokerage clients. These revenues include fees earned on asset-based and transactional accounts and other brokerage advisory services. Asset-based revenues are charged based on the market value of the client’s assets. The services and related obligations associated with certain of these revenues, which include investment advice, active management of client assets, or assistance with selecting and engaging a third-party advisory manager, are generally satisfied over a month or quarter. The remaining revenues include trailing commissions which are earned for selling shares to investors. Our obligation associated with earning trailing commissions is satisfied at the time shares are sold. However, these fees are received and recognized over time during the period the customer owns the shares and we remain the broker of record. The amount of trailing commissions is variable based on the length of time the customer holds the shares and on changes in the value of the underlying assets. Transactional revenues are earned for executing transactions at the client’s direction. Our obligation is generally satisfied upon the execution of the transaction and the fees are based on the size and number of transactions executed. Other revenues earned from other brokerage advisory services include omnibus and networking fees received from mutual fund companies in return for providing record keeping and other administrative services, and annual account maintenance fees charged to customers. Table 18.3 presents our brokerage advisory, commissions and other fees by operating segment. Table 18.3 : Brokerage Advisory, Commissions and Other Fees by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Asset-based revenue (1) $ 381 371 — 1 1,741 1,720 (382 ) (372 ) 1,740 1,720 Transactional revenue 105 82 (8 ) 19 376 388 (92 ) (94 ) 381 395 Other revenue 18 17 70 59 155 160 (18 ) (17 ) 225 219 Brokerage advisory, commissions and other fees $ 504 470 62 79 2,272 2,268 (492 ) (483 ) 2,346 2,334 Nine months ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Asset-based revenue (1) $ 1,093 1,107 — 1 5,019 5,185 (1,094 ) (1,108 ) 5,018 5,185 Transactional revenue 288 258 18 47 1,153 1,227 (288 ) (286 ) 1,171 1,246 Other revenue 52 48 196 176 472 484 (52 ) (48 ) 668 660 Brokerage advisory, commissions and other fees $ 1,433 1,413 214 224 6,644 6,896 (1,434 ) (1,442 ) 6,857 7,091 (1) We earned trailing commissions of $289 million and $858 million for the third quarter and first nine months of 2019 , respectively, and $323 million and $975 million for the third quarter and first nine months of 2018 , respectively. TRUST AND INVESTMENT MANAGEMENT FEES are earned for providing trust, investment management and other related services. Investment management services include managing and administering assets, including mutual funds, and institutional separate accounts. Fees for these services are generally determined based on a tiered scale relative to the market value of assets under management (AUM). In addition to AUM, we have client assets under administration (AUA) that earn various administrative fees which are generally based on the extent of the services provided to administer the account. Services with AUM and AUA-based fees are generally performed over time. Trust services include acting as a trustee or agent for corporate trust, personal trust, and agency assets. Obligations for trust services are generally satisfied over time, while obligations for activities that are transactional in nature are satisfied at the time of the transaction. Other related services include the custody and safekeeping of accounts. Our obligation for these services is generally satisfied over time. Table 18.4 presents our trust and investment management fees by operating segment. Table 18.4 : Trust and Investment Management Fees by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Investment management fees $ — — — — 510 520 — — 510 520 Trust fees 203 229 85 82 106 181 (210 ) (235 ) 184 257 Other revenue — 2 36 30 (1 ) 26 — — 35 58 Trust and investment management fees $ 203 231 121 112 615 727 (210 ) (235 ) 729 835 Nine months ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Investment management fees $ — — — — 1,488 1,585 — — 1,488 1,585 Trust fees 612 682 250 250 449 554 (632 ) (700 ) 679 786 Other revenue — 2 102 85 41 62 — — 143 149 Trust and investment management fees $ 612 684 352 335 1,978 2,201 (632 ) (700 ) 2,310 2,520 INVESTMENT BANKING FEES are earned for underwriting debt and equity securities, arranging loan syndications and performing other advisory services. Our obligation for these services is generally satisfied at closing of the transaction. Substantially all of these fees are in the Wholesale Banking operating segment. CARD FEES include credit and debit card interchange and network revenues and various card-related fees. Credit and debit card interchange and network revenues are earned on credit and debit card transactions conducted through payment networks such as Visa, MasterCard, and American Express. Our obligation is satisfied concurrently with the delivery of services on a daily basis. Table 18.5 presents our card fees by operating segment. Table 18.5 : Card Fees by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Credit card interchange and network revenues (1) $ 202 218 90 92 2 1 (1 ) (1 ) 293 310 Debit card interchange and network revenues 548 523 — — — — — — 548 523 Late fees, cash advance fees, balance transfer fees, and annual fees 186 184 — — — — — — 186 184 Card fees (1) $ 936 925 90 92 2 1 (1 ) (1 ) 1,027 1,017 Nine months ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Credit card interchange and network revenues (1) $ 600 600 271 275 5 4 (3 ) (3 ) 873 876 Debit card interchange and network revenues 1,601 1,527 — — — — — — 1,601 1,527 Late fees, cash advance fees, balance transfer fees, and annual fees 522 523 — — — — — — 522 523 Card fees (1) $ 2,723 2,650 271 275 5 4 (3 ) (3 ) 2,996 2,926 (1) The cost of credit card rewards and rebates of $383 million and $1.1 billion for the third quarter and first nine months of 2019 , respectively, and $335 million and $1.0 billion for the third quarter and first nine months of 2018 , respectively, are presented net against the related revenues. CASH NETWORK FEES are earned for processing ATM transactions. Our obligation is completed daily upon settlement of ATM transactions. All of these fees are in the Community Banking operating segment. COMMERCIAL REAL ESTATE BROKERAGE COMMISSIONS are earned for assisting customers in the sale of real estate property. Our obligation is satisfied upon the successful brokering of a transaction. Fees are based on a fixed percentage of the sales price. All of these fees are in the Wholesale Banking operating segment. WIRE TRANSFER AND OTHER REMITTANCE FEES consist of fees earned for funds transfer services and issuing cashier’s checks and money orders. Our obligation is satisfied at the time of the funds transfer services or upon issuance of the cashier’s check or money order. Substantially all of these fees are in the Community Banking and Wholesale Banking operating segments. ALL OTHER FEES

Employee Benefits

Employee Benefits	9 Months Ended
	Sep. 30, 2019
Defined Benefit Plan [Abstract]
Employee Benefits	Note 19: Employee Benefits We sponsor a frozen noncontributory qualified defined benefit retirement plan, the Wells Fargo & Company Cash Balance Plan (Cash Balance Plan), which covers eligible employees of Wells Fargo. The Cash Balance Plan was frozen on July 1, 2009, and no new benefits accrue after that date. For additional information on our pension and postretirement plans, including plan assumptions, investment strategy and asset allocation, projected benefit payments, and valuation methodologies used for assets measured at fair value, see Note 22 (Employee Benefits and Other Expenses) in our 2018 Form 10-K. Table 19.1 presents the components of net periodic benefit cost. Table 19.1: Net Periodic Benefit Cost 2019 2018 Pension benefits Pension benefits (in millions) Qualified Non-qualified Other benefits Qualified Non-qualified Other benefits Quarter ended September 30, Service cost $ 3 — — 2 — — Interest cost (1) 105 5 6 97 5 6 Expected return on plan assets (1) (142 ) — (7 ) (160 ) — (8 ) Amortization of net actuarial loss (gain) (1) 37 3 (5 ) 32 4 (4 ) Amortization of prior service credit (1) — — (2 ) — — (3 ) Settlement loss (1) — — — — — — Net periodic benefit cost (income) $ 3 8 (8 ) (29 ) 9 (9 ) Nine months ended September 30, Service cost $ 9 — — 5 — — Interest cost (1) 314 16 17 293 16 16 Expected return on plan assets (1) (426 ) — (21 ) (481 ) — (23 ) Amortization of net actuarial loss (gain) (1) 111 8 (13 ) 98 10 (13 ) Amortization of prior service credit (1) — — (7 ) — — (8 ) Settlement loss (1) — 2 — — 3 — Net periodic benefit cost (income) $ 8 26 (24 ) (85 ) 29 (28 ) (1) Balances are reported in other noninterest expense on the consolidated statement of income.

Earnings and Dividends Per Comm

Earnings and Dividends Per Common Share	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Common Share	Note 20: Earnings and Dividends Per Common Share Table 20.1 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 (Summary of Significant Accounting Policies) for discussion on share repurchases. Table 20.1: Earnings Per Common Share Calculations Quarter ended September 30, Nine months ended September 30, (in millions, except per share amounts) 2019 2018 2019 2018 Wells Fargo net income $ 4,610 6,007 $ 16,676 16,329 Less: Preferred stock dividends and other (1) 573 554 1,284 1,351 Wells Fargo net income applicable to common stock (numerator) $ 4,037 5,453 $ 15,392 14,978 Earnings per common share Average common shares outstanding (denominator) 4,358.5 4,784.0 4,459.1 4,844.8 Per share $ 0.93 1.14 $ 3.45 3.09 Diluted earnings per common share Average common shares outstanding 4,358.5 4,784.0 4,459.1 4,844.8 Add: Stock options (2) 0.1 7.5 1.0 8.5 Restricted share rights (2) 31.0 26.5 29.4 25.9 Warrants (2) — 5.2 — 5.8 Diluted average common shares outstanding (denominator) 4,389.6 4,823.2 4,489.5 4,885.0 Per share $ 0.92 1.13 $ 3.43 3.07 (1) The quarter and nine months ended September 30, 2019 , and September 30, 2018 , includes $220 million and $155 million , respectively, as a result of eliminating the discount on our Series K and Series J Preferred Stock. The Series K Preferred Stock was partially redeemed on September 16, 2019, and the Series J Preferred Stock was redeemed on September 17, 2018. (2) Calculated using the treasury stock method. Table 20.2 presents the outstanding Series L convertible preferred stock and options to purchase shares of common stock that were anti-dilutive and therefore not included in the calculation of diluted earnings per common share. Table 20.2: Outstanding Anti-Dilutive Securities Weighted-average shares Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Series L Convertible Preferred Stock (1) 25.3 25.3 25.3 25.3 Stock options (2) — — — 0.4 (1) Calculated using the if-converted method. (2) Calculated using the treasury stock method. Table 20.3 presents dividends declared per common share. Table 20.3: Dividends Declared Per Common Share Quarter ended September 30, Nine months ended September 30, 2019 2018 2019 2018 Per common share $ 0.51 0.43 $ 1.41 1.21

Other Comprehensive Income

Other Comprehensive Income	9 Months Ended
	Sep. 30, 2019
Cumulative Other Comprehensive Income Balances [Abstract]
Other Comprehensive Income	Note 21: Other Comprehensive Income Table 21.1 provides the components of OCI, reclassifications to net income by income statement line item, and the related tax effects. Table 21.1: Summary of Other Comprehensive Income Quarter ended September 30, Nine months ended September 30, 2019 2018 2019 2018 (in millions) Before tax Tax effect Net of tax Before tax Tax effect Net of tax Before tax Tax effect Net of tax Before tax Tax effect Net of tax Debt securities: Net unrealized gains (losses) arising during the period $ 652 (159 ) 493 (1,468 ) 360 (1,108 ) 5,192 (1,276 ) 3,916 (5,528 ) 1,360 (4,168 ) Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 77 (19 ) 58 109 (27 ) 82 183 (45 ) 138 268 (66 ) 202 Net gains on debt securities (3 ) — (3 ) (57 ) 15 (42 ) (148 ) 36 (112 ) (99 ) 25 (74 ) Other noninterest income 2 (1 ) 1 (1 ) — (1 ) (1 ) — (1 ) (1 ) — (1 ) Subtotal reclassifications to net income 76 (20 ) 56 51 (12 ) 39 34 (9 ) 25 168 (41 ) 127 Net change 728 (179 ) 549 (1,417 ) 348 (1,069 ) 5,226 (1,285 ) 3,941 (5,360 ) 1,319 (4,041 ) Derivative and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) 28 (7 ) 21 (21 ) 5 (16 ) 58 (14 ) 44 (147 ) 36 (111 ) Cash Flow Hedges: Net unrealized losses arising during the period on cash flow hedges (18 ) 4 (14 ) (3 ) — (3 ) (26 ) 6 (20 ) (269 ) 66 (203 ) Reclassification of net losses to net income on cash flow hedges: Interest income on loans 73 (19 ) 54 78 (19 ) 59 228 (57 ) 171 215 (53 ) 162 Interest expense on long-term debt 2 — 2 1 — 1 5 (1 ) 4 1 — 1 Subtotal reclassifications to net income 75 (19 ) 56 79 (19 ) 60 233 (58 ) 175 216 (53 ) 163 Net change 85 (22 ) 63 55 (14 ) 41 265 (66 ) 199 (200 ) 49 (151 ) Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period — — — — — — (4 ) 1 (3 ) 6 (2 ) 4 Reclassification of amounts to non interest expense (3): Amortization of net actuarial loss 35 (9 ) 26 32 (8 ) 24 106 (26 ) 80 95 (23 ) 72 Settlements and other (2 ) 1 (1 ) (3 ) 2 (1 ) (5 ) 3 (2 ) (5 ) 3 (2 ) Subtotal reclassifications to non interest expense 33 (8 ) 25 29 (6 ) 23 101 (23 ) 78 90 (20 ) 70 Net change 33 (8 ) 25 29 (6 ) 23 97 (22 ) 75 96 (22 ) 74 Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period (53 ) 1 (52 ) (9 ) 2 (7 ) 3 (2 ) 1 (94 ) — (94 ) Net change (53 ) 1 (52 ) (9 ) 2 (7 ) 3 (2 ) 1 (94 ) — (94 ) Other comprehensive income (loss) $ 793 (208 ) 585 (1,342 ) 330 (1,012 ) 5,591 (1,375 ) 4,216 (5,558 ) 1,346 (4,212 ) Less: Other comprehensive loss from noncontrolling interests, net of tax — — — (1 ) Wells Fargo other comprehensive income (loss), net of tax $ 585 (1,012 ) 4,216 (4,211 ) (1) Represents net unrealized gains and losses amortized over the remaining lives of securities that were transferred from the available-for-sale portfolio to the held-to-maturity portfolio. (2) Represents changes in fair value of cross-currency swaps attributable to changes in cross-currency basis spreads, which are excluded from the assessment of effectiveness recorded in other comprehensive income. (3) These items are included in the computation of net periodic benefit cost (see Note 19 (Employee Benefits) for more information). Table 21.2: Cumulative OCI Balances (in millions) Debt securities Derivative and hedging activities Defined benefit plans adjustments Foreign currency translation adjustments Cumulative other compre- hensive income Quarter ended September 30, 2019 Balance, beginning of period $ 751 (549 ) (2,246 ) (180 ) (2,224 ) Net unrealized gains (losses) arising during the period 493 7 — (52 ) 448 Amounts reclassified from accumulated other comprehensive income 56 56 25 — 137 Net change 549 63 25 (52 ) 585 Less: Other comprehensive income from noncontrolling interests — — — — — Balance, end of period $ 1,300 (486 ) (2,221 ) (232 ) (1,639 ) Quarter ended September 30, 2018 Balance, beginning of period $ (2,919 ) (610 ) (1,757 ) (175 ) (5,461 ) Reclassification of certain tax effects to retained earnings (1) 31 (87 ) (353 ) 9 (400 ) Net unrealized losses arising during the period (1,108 ) (19 ) — (7 ) (1,134 ) Amounts reclassified from accumulated other comprehensive income 39 60 23 — 122 Net change (1,038 ) (46 ) (330 ) 2 (1,412 ) Less: Other comprehensive income from noncontrolling interests — — — — — Balance, end of period $ (3,957 ) (656 ) (2,087 ) (173 ) (6,873 ) Nine months ended September 30, 2019 Balance, beginning of period $ (3,122 ) (685 ) (2,296 ) (233 ) (6,336 ) Transition adjustment (2) 481 — — — 481 Balance, January 1, 2019 (2,641 ) (685 ) (2,296 ) (233 ) (5,855 ) Net unrealized gains (losses) arising during the period 3,916 24 (3 ) 1 3,938 Amounts reclassified from accumulated other comprehensive income 25 175 78 — 278 Net change 3,941 199 75 1 4,216 Less: Other comprehensive income from noncontrolling interests — — — — — Balance, end of period $ 1,300 (486 ) (2,221 ) (232 ) (1,639 ) Nine months ended September 30, 2018 Balance, beginning of period $ 171 (418 ) (1,808 ) (89 ) (2,144 ) Transition adjustment (3) (118 ) — — — (118 ) Balance, January 1, 2018 53 (418 ) (1,808 ) (89 ) (2,262 ) Reclassification of certain tax effects to retained earnings (1) 31 (87 ) (353 ) 9 (400 ) Net unrealized gains (losses) arising during the period (4,168 ) (314 ) 4 (94 ) (4,572 ) Amounts reclassified from accumulated other comprehensive income 127 163 70 — 360 Net change (4,010 ) (238 ) (279 ) (85 ) (4,612 ) Less: Other comprehensive loss from noncontrolling interests — — — (1 ) (1 ) Balance, end of period $ (3,957 ) (656 ) (2,087 ) (173 ) (6,873 ) (1) Represents the reclassification from other comprehensive income to retained earnings as a result of the adoption of ASU 2018-02 - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in the third quarter of 2018. (2) The transition adjustment relates to the adoption of ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . See Note 1 (Summary of Significant Accounting Policies) for more information. (3) The transition adjustment relates to the adoption of ASU 2016-01 – Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities

Operating Segments

Operating Segments	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Operating Segments	Note 22: Operating Segments We have three reportable operating segments: Community Banking; Wholesale Banking; and Wealth and Investment Management (WIM). We define our operating segments by product type and customer segment and their results 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. If the management structure and/or the allocation process changes, allocations, transfers and assignments may change. For a description of our operating segments see Note 26 (Operating Segments) in our 2018 Form 10-K. Table 22.1 presents our results by operating segment. Table 22.1: Operating Segments Community Wholesale Banking Wealth and Investment Management Other (1) Consolidated Company (income/expense in millions, average balances in billions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Quarter ended Sep 30, Net interest income (2) $ 6,769 7,338 4,382 4,726 989 1,102 (515 ) (594 ) 11,625 12,572 Provision (reversal of provision) for credit losses 608 547 92 26 3 6 (8 ) 1 695 580 Noninterest income 4,470 4,478 2,560 2,578 4,152 3,124 (797 ) (811 ) 10,385 9,369 Noninterest expense 8,766 7,467 3,889 3,935 3,431 3,243 (887 ) (882 ) 15,199 13,763 Income (loss) before income tax expense (benefit) 1,865 3,802 2,961 3,343 1,707 977 (417 ) (524 ) 6,116 7,598 Income tax expense (benefit) 667 925 315 475 426 244 (104 ) (132 ) 1,304 1,512 Net income (loss) before noncontrolling interests 1,198 2,877 2,646 2,868 1,281 733 (313 ) (392 ) 4,812 6,086 Less: Net income from noncontrolling interests 199 61 2 17 1 1 — — 202 79 Net income (loss) (3) $ 999 2,816 2,644 2,851 1,280 732 (313 ) (392 ) 4,610 6,007 Average loans $ 459.0 460.9 474.3 462.8 75.9 74.6 (59.4 ) (58.8 ) 949.8 939.5 Average assets 1,033.9 1,024.9 869.2 827.2 84.7 83.8 (60.4 ) (59.6 ) 1,927.4 1,876.3 Average deposits 789.7 760.9 422.0 413.6 142.4 159.8 (62.7 ) (67.9 ) 1,291.4 1,266.4 Nine months ended Sep 30, Net interest income (2) $ 21,083 21,879 13,451 13,951 3,127 3,325 (1,630 ) (1,804 ) 36,031 37,351 Provision (reversal of provision) for credit losses 1,797 1,249 254 (30 ) 6 (2 ) (14 ) 6 2,043 1,223 Noninterest income 13,711 13,573 7,667 7,829 10,143 9,094 (2,349 ) (2,419 ) 29,172 28,077 Noninterest expense 23,667 23,459 11,609 12,132 9,980 9,894 (2,692 ) (2,698 ) 42,564 42,787 Income (loss) before income tax expense (benefit) 9,330 10,744 9,255 9,678 3,284 2,527 (1,273 ) (1,531 ) 20,596 21,418 Income tax expense (benefit) 1,929 3,147 1,049 1,302 819 630 (318 ) (383 ) 3,479 4,696 Net income (loss) before noncontrolling interests 7,401 7,597 8,206 8,376 2,465 1,897 (955 ) (1,148 ) 17,117 16,722 Less: Net income from noncontrolling interests 432 372 3 15 6 6 — — 441 393 Net income (loss) (3) $ 6,969 7,225 8,203 8,361 2,459 1,891 (955 ) (1,148 ) 16,676 16,329 Average loans $ 458.3 465.0 474.9 464.2 75.1 74.4 (59.2 ) (58.8 ) 949.1 944.8 Average assets 1,024.8 1,040.2 855.4 827.6 83.9 84.0 (60.2 ) (59.6 ) 1,903.9 1,892.2 Average deposits 777.7 756.4 414.1 424.4 146.3 168.2 (63.9 ) (70.8 ) 1,274.2 1,278.2 (1) Includes the elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for Wealth and Investment Management customers served through Community Banking distribution channels. (2) 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 as well as interest credits for any funding of a segment available to be provided to other segments. The cost of liabilities includes actual interest expense on segment liabilities as well as funding charges for any funding provided from other segments. (3) Represents segment net income (loss) for Community Banking; Wholesale Banking; and Wealth and Investment Management segments and Wells Fargo net income for the consolidated company.

Regulatory and Agency Capital R

Regulatory and Agency Capital Requirements	9 Months Ended
	Sep. 30, 2019
Banking and Thrift [Abstract]
Regulatory and Agency Capital Requirements	Note 23: Regulatory and Agency Capital Requirements The Company and each of its subsidiary banks are subject to regulatory capital adequacy requirements promulgated by federal bank regulatory agencies. The Federal Reserve establishes capital requirements 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). Table 23.1 presents regulatory capital information for Wells Fargo & Company and the Bank using Basel III, which increased minimum required capital ratios, and introduced a minimum Common Equity Tier 1 (CET1) ratio. We must report the lower of our CET1, tier 1 and total capital ratios calculated under the Standardized Approach and under the Advanced Approach in the assessment of our capital adequacy. The Standardized Approach applies assigned risk weights to broad risk categories, while the calculation of risk-weighted assets (RWAs) under the Advanced Approach differs by requiring applicable banks to utilize a risk-sensitive methodology, which relies upon the use of internal credit models, and includes an operational risk component. The Basel III capital rules are being phased-in effective January 1, 2014, through the end of 2021. Beginning January 1, 2018, the requirements for calculating CET1 and tier 1 capital, along with RWAs, became fully phased-in. Accordingly, the information presented reflects fully phased-in CET1 capital, tier 1 capital, and RWAs, but reflects total capital still in accordance with Transition Requirements. The Bank is an approved seller/servicer of mortgage loans 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, 2019 , 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. Table 23.1: Regulatory Capital Information Wells Fargo & Company Wells Fargo Bank, N.A. September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 (in millions, except ratios) Advanced Approach Standardized Approach Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Regulatory capital: Common equity tier 1 $ 144,739 144,739 146,363 146,363 145,265 145,265 142,685 142,685 Tier 1 164,872 164,872 167,866 167,866 145,265 145,265 142,685 142,685 Total 194,526 202,480 198,798 207,041 157,212 164,736 155,558 163,380 Assets: Risk-weighted assets $ 1,218,519 1,246,238 1,177,350 1,247,210 1,096,348 1,149,329 1,058,653 1,154,182 Adjusted average assets (1) 1,898,590 1,898,590 1,850,299 1,850,299 1,674,518 1,674,518 1,652,009 1,652,009 Regulatory capital ratios: Common equity tier 1 capital 11.88 % 11.61 * 12.43 11.74 * 13.25 12.64 * 13.48 12.36 * Tier 1 capital 13.53 13.23 * 14.26 13.46 * 13.25 12.64 * 13.48 12.36 * Total capital 15.96 * 16.25 16.89 16.60 * 14.34 14.33 * 14.69 14.16 * Tier 1 leverage (1) 8.68 8.68 9.07 9.07 8.68 8.68 8.64 8.64 Wells Fargo & Company Wells Fargo Bank, N.A. September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Supplementary leverage: (2) Total leverage exposure $ 2,240,106 2,174,564 1,993,756 1,957,276 Supplementary leverage ratio 7.36 % 7.72 7.29 7.29 *Denotes the lowest capital ratio as determined under the Advanced and Standardized Approaches. (1) The leverage ratio consists of Tier 1 capital divided by total average assets, excluding goodwill and certain other items. (2) The supplementary leverage ratio consists of Tier 1 capital divided by total leverage exposure. Total leverage exposure consists of total average assets, less goodwill and other permitted Tier 1 capital deductions (net of deferred tax liabilities), plus certain off-balance sheet exposures. Table 23.2 presents the minimum required regulatory capital ratios under Transition Requirements to which the Company and the Bank were subject as of September 30, 2019 , and December 31, 2018 . Table 23.2: Minimum Required Regulatory Capital Ratios – Transition Requirements (1) Wells Fargo & Company Wells Fargo Bank, N.A. September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Regulatory capital ratios: Common equity tier 1 capital 9.000 % 7.875 7.000 6.375 Tier 1 capital 10.500 9.375 8.500 7.875 Total capital 12.500 11.375 10.500 9.875 Tier 1 leverage 4.000 4.000 4.000 4.000 Supplementary leverage 5.000 5.000 6.000 6.000 (1) At September 30, 2019 , under transition requirements, the CET1, tier 1 and total capital minimum ratio requirements for Wells Fargo & Company include a capital conservation buffer of 2.500% and a global systemically important bank (G-SIB) surcharge of 2.000% . Only the 2.500% capital conservation buffer applies to the Bank at September 30, 2019

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Significant Accounting Policies [Line Items]
Business Description and Basis of Presentation	Wells Fargo & Company is a diversified financial services company. We provide banking, trust and investments, mortgage banking, investment banking, retail banking, brokerage, and consumer and commercial finance through banking locations, 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 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2018 ( 2018
Use of Estimates	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, 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 (Note 6 (Loans and Allowance for Credit Losses)); • valuations of residential mortgage servicing rights (MSRs) (Note 10 (Securitizations and Variable Interest Entities) and Note 11 (Mortgage Banking Activities)); • valuations of financial instruments (Note 15 (Derivatives) and Note 16 (Fair Values of Assets and Liabilities)); • liabilities for contingent litigation losses (Note 14 (Legal Actions)); 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 2018 Form 10-K.
Accounting Standards Adopted in 2019	Accounting Standards Adopted in 2019 In first quarter 2019 , we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2018-16 – Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes • ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities • ASU 2016-02 – Leases (Topic 842) and subsequent related Updates, including early adoption of ASU 2019-01 – Leases (Topic 842): Codification Improvements
Lessor, Leases [Policy Text Block]	AS LESSOR We lease equipment to our customers under financing or operating leases. Financing leases are presented in loans and are recorded at the discounted amounts of lease payments receivable plus the estimated residual value of the leased asset. Leveraged leases, which are a form of financing leases, are reduced by related non-recourse debt from third-party investors. Lease payments receivable reflect contractual lease payments adjusted for renewal or termination options that we believe the customer is reasonably certain to exercise. The residual value reflects our best estimate of the expected sales price for the equipment at lease termination based on sales history adjusted for recent trends in the expected exit markets. Many of our leases allow the customer to extend the lease at prevailing market terms or purchase the asset for fair value at lease termination. Our allowance for loan losses for financing leases considers both the collectability of the lease payments receivable as well as the estimated residual value of the leased asset. We typically purchase residual value insurance on our financing leases so that our risk of loss at lease termination will be less than 10% of the initial value of the lease. Our risk to declines in residual values is further mitigated by the diversity of leased assets in our lease portfolio. In addition, we have several channels for re-leasing or marketing those assets. In connection with a lease, we may finance the customer’s purchase of other products or services from the equipment vendor and allocate the contract consideration between the use of the asset and the purchase of those products or services based on information obtained from the vendor. Amounts allocated to financing of vendor products or services are reported in loans as commercial and industrial loans, rather than as lease financing. Our primary income from financing leases is interest income recognized using the effective interest method. Variable lease revenues, such as reimbursement for property taxes associated with the leased asset, are included in lease income within noninterest income. Operating lease assets are presented in other assets, net of accumulated depreciation. Periodic depreciation expense is recorded on a straight-line basis to the estimated residual value over the estimated useful life of the leased asset. On a periodic basis, operating lease assets are reviewed for impairment and impairment loss is recognized if the carrying amount of operating lease assets exceeds fair value and is not recoverable. The carrying amount of leased assets is deemed not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the lease payments and the estimated residual value upon the eventual disposition of the equipment. Depreciation of leased assets and impairment loss are presented in operating leases expense within other noninterest expense. Operating lease rental income for leased assets is recognized in lease income within noninterest income on a straight-line basis over the lease term. Variable revenues on operating leases include reimbursements of costs, including property taxes, which fluctuate over time, as well as rental revenue based on usage. For leases of railcars, revenue for maintenance services provided under the lease is recognized in lease income. We elected to exclude from revenues and expenses any sales tax incurred on lease payments which are reimbursed by the lessee. Substantially all of our leased assets are protected against casualty loss through third party insurance.
Lessee, Leases [Policy Text Block]	AS LESSEE We enter into lease agreements to obtain the right to use assets for our business operations, substantially all of which are real estate. Lease liabilities and ROU assets are recognized when we enter into operating or financing leases and represent our obligations and rights to use these assets over the period of the leases and may be re-measured for certain modifications, resolution of certain contingencies involving variable consideration, or our exercise of options (renewal, extension, or termination) under the lease. Operating lease liabilities include fixed and in-substance fixed payments for the contractual duration of the lease, adjusted for renewals or terminations which were considered probable of exercise when measured. The lease payments are discounted using a rate determined when the lease is recognized. As we typically do not know the discount rate implicit in the lease, we estimate a discount rate that we believe approximates a collateralized borrowing rate for the estimated duration of the lease. The discount rate is updated when re-measurement events occur. The related operating lease ROU assets may differ from operating lease liabilities due to initial direct costs, deferred or prepaid lease payments and lease incentives. We present operating lease liabilities in accrued expenses and other liabilities and the related operating lease ROU assets in other assets. The amortization of operating lease ROU assets and the accretion of operating lease liabilities are reported together as fixed lease expense and are included in net occupancy expense within noninterest expense. The fixed lease expense is recognized on a straight-line basis over the life of the lease. Some of our operating leases include variable lease payments which are periodic adjustments of our payments for the use of the asset based on changes in factors such as consumer price indices, fair market value, tax rates imposed by taxing authorities, or lessor cost of insurance. To the extent not included in operating lease liabilities and operating lease ROU assets, these variable lease payments are recognized as incurred in net occupancy expense within noninterest expense. For substantially all of our leased assets, we account for consideration paid under the contract for maintenance or other services as lease payments. In addition, for certain asset classes, we have elected to exclude leases with original terms of less than one year from the operating lease ROU assets and lease liabilities. The related short-term lease expense is included in net occupancy expense. Finance lease (formerly capital lease) liabilities are presented in long-term debt and the associated finance ROU assets are presented in premises and equipment.
Private Share Repurchases	Share Repurchases From time to time we may enter into private forward repurchase contracts, written repurchase plans pursuant to Rule 10b5-1 of the Securities Exchange Act of 1934, or a combination of the two to complement our open-market common stock repurchase strategies. The stock repurchase transactions allow us to manage our share repurchases in a manner consistent with our capital plans submitted annually under the Comprehensive Capital Analysis and Review (CCAR) and to provide an economic benefit to the Company. Our payments to the counterparties for the private forward repurchase 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 capital plans, which contemplate a fixed dollar amount available per quarter for share repurchases pursuant to the Board of Governors of the Federal Reserve System (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. Our total number of outstanding shares of common stock is not reduced until settlement of the private share repurchase contract. We did not enter into any private forward repurchase contracts in third quarter 2019 and we had no unsettled private share repurchase contracts at September 30, 2019 . Under a Rule 10b5-1 repurchase plan, payments and receipt of repurchased shares settle on the same day and the shares repurchased reduce the total number of outstanding shares of common stock upon the settlement of each trade under the plan.
Subsequent Events	Subsequent Events We have evaluated the effects of events that have occurred subsequent to September 30, 2019 , and, except as disclosed elsewhere in the footnotes, there have been no material events that would require recognition in our third quarter 2019
Accounting Standards Update 2018-16 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2019	ASU 2018-16 expands the list of U.S. benchmark interest rates permitted in the application of hedge accounting. The Update adds the OIS rate based on SOFR as a U.S. benchmark interest rate to facilitate the London Interbank Offered Rate (LIBOR) to SOFR transition and provide sufficient lead time for entities to prepare for changes to interest rate risk hedging strategies for both risk management and hedge accounting purposes. The Update is applied prospectively for qualifying new or re-designated hedging relationships entered into on or after adoption date. We adopted the guidance in first quarter 2019. The Update has not had an impact as we have not designated SOFR OIS as a benchmark interest rate in any hedging relationships.
Accounting Standards Update 2017-08 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2019	ASU 2017-08 changes the interest income recognition model for purchased callable debt securities carried at a premium, as the premium will be amortized to the earliest call date rather than to the contractual maturity date. Accounting for purchased callable debt securities held at a discount does not change, as the discount will continue to accrete to the contractual maturity date. The Update impacted our investments in purchased callable debt securities classified as available-for-sale (AFS) and held-to-maturity (HTM), which primarily consist of debt securities of U.S. states and political subdivisions. We adopted the Update in first quarter 2019 and recorded a cumulative-effect adjustment as of January 1, 2019, that decreased total stockholders’ equity by $111 million . Retained earnings was reduced by $592 million which reflects both the incremental premium amortization under the new guidance from the acquisition date of our impacted AFS and HTM debt securities through the date of adoption and the fact that the incremental premium amortization is not deductible for federal income tax purposes. Other comprehensive income (OCI) was increased by $481 million which reflects the corresponding adjustment to the adoption date unrealized gain or loss of impacted AFS debt securities. Going forward, interest income recognized prior to the call date will be reduced because the premium will be amortized over a shorter period.
Accounting Standards Update 2016-02 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2019	ASU 2016-02 modifies the guidance used by lessors and lessees to account for leasing transactions. For our transition to the new guidance, we elected several available practical expedients, including to not reassess the classification of our existing leases, any initial direct costs associated with our leases, or whether any existing contracts are or contain leases. In addition, we elected not to provide a comparative presentation for 2018 and 2017 financial statements. We adopted the Update in first quarter 2019 and recorded a cumulative-effect adjustment that increased retained earnings by $100 million related to deferred gains on our prior sale-leaseback transactions. We also recognized operating lease right-of-use (ROU) assets and liabilities, substantially all of which relate to our leasing of real estate as a lessee, of $4.9 billion and $5.6 billion , respectively.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.1 . Table 1.1: Supplemental Cash Flow Information Nine months ended September 30, (in millions) 2019 2018 Trading debt securities retained from securitization of MLHFS $ 31,517 28,761 Transfers from loans to MLHFS 5,409 4,456 Transfers from loans to LHFS 117 2,542 Transfers from available-for-sale debt securities to held-to-maturity debt securities 13,833 13,372 Operating lease ROU assets acquired with operating lease liabilities (1) 5,644 — (1) The nine months ended September 30, 2019 , balance includes $4.9 billion from adoption of ASU 2016-02 – Leases (Topic 842) and $744 million attributable to new leases and changes from modified leases.

Cash, Loan and Dividend Restr_2

Cash, Loan and Dividend Restrictions (Tables)	9 Months Ended
	Sep. 30, 2019
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Nature of Restrictions on Cash Equivalents	Table 3.1 provides a summary of restrictions on cash equivalents in addition to the FRB reserve cash balance requirements . Table 3.1: Nature of Restrictions on Cash Equivalents (in millions) Sep 30, Dec 31, Average required reserve balance for FRB (1) $ 11,230 12,428 Reserve balance for non-U.S. central banks 247 517 Segregated for benefit of brokerage customers under federal and other brokerage regulations 625 1,135 Related to consolidated variable interest entities (VIEs) that can only be used to settle liabilities of VIEs 128 147 (1) Represents average for the first nine months of 2019 and for the year ended December 31, 2018 .

Trading Activities (Tables)

Trading Activities (Tables)	9 Months Ended
	Sep. 30, 2019
Trading Activities [Abstract]
Trading Assets and Liabilities	Table 4.1 presents a summary of our trading assets and liabilities measured at fair value through earnings. Table 4.1: Trading Assets and Liabilities Sep 30, Dec 31, (in millions) 2019 2018 Trading assets: Debt securities $ 79,113 69,989 Equity securities 24,436 19,449 Loans held for sale 1,501 1,469 Gross trading derivative assets 39,926 29,216 Netting (1) (26,414 ) (19,807 ) Total trading derivative assets 13,512 9,409 Total trading assets 118,562 100,316 Trading liabilities: Short sale 18,290 19,720 Gross trading derivative liabilities 38,308 28,717 Netting (1) (29,708 ) (21,178 ) Total trading derivative liabilities 8,600 7,539 Total trading liabilities $ 26,890 27,259 (1) Represents balance sheet netting for trading derivative asset and liability balances, and trading portfolio level counterparty valuation adjustments.
Net Interest Income and Net Gains (Losses) on Trading Activities	Table 4.2 provides a summary of the net interest income earned from trading securities, and net gains and losses due to the realized and unrealized gains and losses from trading activities. Net interest income also includes dividend income on trading securities and dividend expense on trading securities we have sold, but not yet purchased. Table 4.2: Net Interest Income and Net Gains (Losses) on Trading Activities Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Interest income: Debt securities $ 790 723 2,323 2,043 Equity securities 157 178 415 447 Loans held for sale 20 20 63 43 Total interest income 967 921 2,801 2,533 Less: Interest expense 129 157 392 429 Net interest income 838 764 2,409 2,104 Net gains (losses) from trading activities (1): Debt securities 451 (369 ) 1,540 (1,008 ) Equity securities (242 ) 1,129 3,061 25 Loans held for sale 5 3 15 18 Derivatives (2) 62 (605 ) (3,754 ) 1,557 Total net gains from trading activities 276 158 862 592 Total trading-related net interest and noninterest income $ 1,114 922 3,271 2,696 (1) Represents realized gains (losses) and unrealized gains (losses) due to changes in fair value of our trading positions. (2) Excludes economic hedging of mortgage banking and asset/liability management activities, for which hedge results (realized and unrealized) are reported with the respective hedged activities.

AFS and HTM Debt Securities (Ta

AFS and HTM Debt Securities (Tables)	9 Months Ended
	Sep. 30, 2019
AFS and HTM Debt Securities [Abstract]
Amortized Cost and Fair Value	Table 5.1 provides the amortized cost and fair value by major categories of available-for-sale debt securities, which are carried at fair value, and held-to-maturity debt securities, which are carried at amortized cost. The net unrealized gains (losses) for available-for-sale debt securities are reported on an after-tax basis as a component of cumulative OCI. Information on debt securities held for trading is included in Note 4 (Trading Activities). Table 5.1: Amortized Cost and Fair Value (in millions) Amortized cost Gross unrealized gains Gross unrealized losses Fair value September 30, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 16,569 2 (22 ) 16,549 Securities of U.S. states and political subdivisions (1) 39,792 785 (74 ) 40,503 Mortgage-backed securities: Federal agencies 165,382 2,315 (162 ) 167,535 Residential 839 14 — 853 Commercial 4,190 41 (5 ) 4,226 Total mortgage-backed securities 170,411 2,370 (167 ) 172,614 Corporate debt securities 5,739 198 (44 ) 5,893 Collateralized loan and other debt obligations (2) 30,968 147 (105 ) 31,010 Other (3) 4,616 65 (14 ) 4,667 Total available-for-sale debt securities 268,095 3,567 (426 ) 271,236 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 44,774 690 (1 ) 45,463 Securities of U.S. states and political subdivisions 12,719 308 (5 ) 13,022 Federal agency and other mortgage-backed securities (4) 95,637 2,120 (12 ) 97,745 Collateralized loan obligations 49 — — 49 Total held-to-maturity debt securities 153,179 3,118 (18 ) 156,279 Total $ 421,274 6,685 (444 ) 427,515 December 31, 2018 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 13,451 3 (106 ) 13,348 Securities of U.S. states and political subdivisions (1) 48,994 716 (446 ) 49,264 Mortgage-backed securities: Federal agencies 155,974 369 (3,140 ) 153,203 Residential 2,638 142 (5 ) 2,775 Commercial 4,207 40 (22 ) 4,225 Total mortgage-backed securities 162,819 551 (3,167 ) 160,203 Corporate debt securities 6,230 131 (90 ) 6,271 Collateralized loan and other debt obligations (2) 35,581 158 (396 ) 35,343 Other (3) 5,396 100 (13 ) 5,483 Total available-for-sale debt securities 272,471 1,659 (4,218 ) 269,912 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 44,751 4 (415 ) 44,340 Securities of U.S. states and political subdivisions 6,286 30 (116 ) 6,200 Federal agency and other mortgage-backed securities (4) 93,685 112 (2,288 ) 91,509 Collateralized loan obligations 66 — — 66 Total held-to-maturity debt securities 144,788 146 (2,819 ) 142,115 Total $ 417,259 1,805 (7,037 ) 412,027 (1) Includes investments in tax-exempt preferred debt securities issued by investment funds or trusts that predominantly invest in tax-exempt municipal securities. The cost basis and fair value of these types of securities was $5.8 billion each at September 30, 2019 , and $6.3 billion each at December 31, 2018 . (2) Includes collateralized debt obligations (CDOs) with a cost basis and fair value of $494 million and $609 million , respectively, at September 30, 2019 , and $662 million and $800 million , respectively, at December 31, 2018 . (3) Largely includes asset-backed securities collateralized by student loans. (4) Predominantly consists of federal agency mortgage-backed securities at both September 30, 2019 and December 31, 2018 .
Gross Unrealized Losses and Fair Value	Table 5.2 shows the gross unrealized losses and fair value of available-for-sale and held-to-maturity debt securities by length of time those individual securities in each category have been in a continuous loss position. Debt securities on which we have taken credit-related other-than-temporary impairment (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. Table 5.2: Gross Unrealized Losses and Fair Value Less than 12 months 12 months or more Total (in millions) Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value September 30, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (17 ) 11,776 (5 ) 3,475 (22 ) 15,251 Securities of U.S. states and political subdivisions (34 ) 7,352 (40 ) 2,517 (74 ) 9,869 Mortgage-backed securities: Federal agencies (42 ) 12,965 (120 ) 11,668 (162 ) 24,633 Residential — — — — — — Commercial (3 ) 728 (2 ) 214 (5 ) 942 Total mortgage-backed securities (45 ) 13,693 (122 ) 11,882 (167 ) 25,575 Corporate debt securities (17 ) 581 (27 ) 253 (44 ) 834 Collateralized loan and other debt obligations (42 ) 10,919 (63 ) 9,334 (105 ) 20,253 Other (6 ) 1,347 (8 ) 236 (14 ) 1,583 Total available-for-sale debt securities (161 ) 45,668 (265 ) 27,697 (426 ) 73,365 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (1 ) 804 — — (1 ) 804 Securities of U.S. states and political subdivisions (1 ) 200 (4 ) 72 (5 ) 272 Federal agency and other mortgage-backed securities (10 ) 2,763 (2 ) 31 (12 ) 2,794 Collateralized loan obligations — — — — — — Total held-to-maturity debt securities (12 ) 3,767 (6 ) 103 (18 ) 3,870 Total $ (173 ) 49,435 (271 ) 27,800 (444 ) 77,235 December 31, 2018 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (1 ) 498 (105 ) 6,204 (106 ) 6,702 Securities of U.S. states and political subdivisions (73 ) 9,746 (373 ) 9,017 (446 ) 18,763 Mortgage-backed securities: Federal agencies (42 ) 10,979 (3,098 ) 112,252 (3,140 ) 123,231 Residential (3 ) 398 (2 ) 69 (5 ) 467 Commercial (20 ) 1,972 (2 ) 79 (22 ) 2,051 Total mortgage-backed securities (65 ) 13,349 (3,102 ) 112,400 (3,167 ) 125,749 Corporate debt securities (64 ) 1,965 (26 ) 298 (90 ) 2,263 Collateralized loan and other debt obligations (388 ) 28,306 (8 ) 553 (396 ) 28,859 Other (7 ) 819 (6 ) 159 (13 ) 978 Total available-for-sale debt securities (598 ) 54,683 (3,620 ) 128,631 (4,218 ) 183,314 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (3 ) 895 (412 ) 41,083 (415 ) 41,978 Securities of U.S. states and political subdivisions (4 ) 598 (112 ) 3,992 (116 ) 4,590 Federal agency and other mortgage-backed securities (5 ) 4,635 (2,283 ) 77,741 (2,288 ) 82,376 Collateralized loan obligations — — — — — — Total held-to-maturity debt securities (12 ) 6,128 (2,807 ) 122,816 (2,819 ) 128,944 Total $ (610 ) 60,811 (6,427 ) 251,447 (7,037 ) 312,258
Gross Unrealized Losses and Fair Value by Investment Grade	Table 5.3 shows the gross unrealized losses and fair value of the available-for-sale and held-to-maturity debt securities 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 debt security. Debt 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, debt securities rated below investment grade, labeled as “speculative grade” by the rating agencies, are considered to be distinctively higher credit risk than investment grade debt securities. We have also included debt securities not rated by S&P or Moody’s in the table below based on our internal credit grade of the debt 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 debt securities categorized as investment grade based on internal credit grades were $8 million and $3.0 billion , respectively, at September 30, 2019 , and $20 million and $5.2 billion , respectively, at December 31, 2018 . If an internal credit grade was not assigned, we categorized the debt security as non-investment grade. Table 5.3: Gross Unrealized Losses and Fair Value by Investment Grade Investment grade Non-investment grade (in millions) Gross unrealized losses Fair value Gross unrealized losses Fair value September 30, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (22 ) 15,251 — — Securities of U.S. states and political subdivisions (70 ) 9,686 (4 ) 183 Mortgage-backed securities: Federal agencies (162 ) 24,633 — — Residential — — — — Commercial (3 ) 858 (2 ) 84 Total mortgage-backed securities (165 ) 25,491 (2 ) 84 Corporate debt securities (7 ) 292 (37 ) 542 Collateralized loan and other debt obligations (105 ) 20,253 — — Other (6 ) 1,202 (8 ) 381 Total available-for-sale debt securities (375 ) 72,175 (51 ) 1,190 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (1 ) 804 — — Securities of U.S. states and political subdivisions (5 ) 272 — — Federal agency and other mortgage-backed securities (8 ) 2,604 (4 ) 190 Collateralized loan obligations — — — — Total held-to-maturity debt securities (14 ) 3,680 (4 ) 190 Total $ (389 ) 75,855 (55 ) 1,380 December 31, 2018 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (106 ) 6,702 — — Securities of U.S. states and political subdivisions (425 ) 18,447 (21 ) 316 Mortgage-backed securities: Federal agencies (3,140 ) 123,231 — — Residential (2 ) 295 (3 ) 172 Commercial (20 ) 1,999 (2 ) 52 Total mortgage-backed securities (3,162 ) 125,525 (5 ) 224 Corporate debt securities (17 ) 791 (73 ) 1,472 Collateralized loan and other debt obligations (396 ) 28,859 — — Other (7 ) 726 (6 ) 252 Total available-for-sale debt securities (4,113 ) 181,050 (105 ) 2,264 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies (415 ) 41,978 — — Securities of U.S. states and political subdivisions (116 ) 4,590 — — Federal agency and other mortgage-backed securities (2,278 ) 81,977 (10 ) 399 Collateralized loan obligations — — — — Total held-to-maturity debt securities (2,809 ) 128,545 (10 ) 399 Total $ (6,922 ) 309,595 (115 ) 2,663
AFS and HTM Debt Securities Contractual Maturities	Table 5.4 shows the fair value and contractual weighted-average yields (taxable-equivalent basis) of available-for-sale debt securities by remaining contractual maturity. Remaining contractual maturities for mortgage-backed securities (MBS) do not consider prepayments. Remaining expected maturities will differ from remaining contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature. Table 5.4: Available-for Sale Debt Securities - Fair Value by Contractual Maturity Remaining contractual maturity Total Within one year After one year through five years After five years through ten years After ten years (in millions) amount Yield Amount Yield Amount Yield Amount Yield Amount Yield September 30, 2019 Available-for-sale debt securities (1): Fair value: Securities of U.S. Treasury and federal agencies $ 16,549 1.92 % $ 10,035 1.74 % $ 6,192 2.21 % $ 47 1.84 % $ 275 2.25 % Securities of U.S. states and political subdivisions 40,503 4.84 2,200 3.01 4,455 3.32 4,240 3.36 29,608 5.42 Mortgage-backed securities: Federal agencies 167,535 3.47 — — 152 3.37 1,543 2.59 165,840 3.48 Residential 853 2.88 — — — — — — 853 2.88 Commercial 4,226 3.57 — — — — 340 3.50 3,886 3.58 Total mortgage-backed securities 172,614 3.47 — — 152 3.37 1,883 2.75 170,579 3.48 Corporate debt securities 5,893 4.95 452 5.86 2,193 4.91 2,629 4.70 619 5.50 Collateralized loan and other debt obligations 31,010 3.64 — — 1 4.66 11,548 3.73 19,461 3.59 Other 4,667 2.82 4 5.10 696 3.49 1,358 1.96 2,609 3.09 Total available-for-sale debt securities at fair value $ 271,236 3.62 % $ 12,691 2.10 % $ 13,689 3.08 % $ 21,705 3.58 % $ 223,151 3.75 % (1) Weighted-average yields displayed by maturity bucket are weighted based on fair value and predominantly represent contractual coupon rates without effect for any related hedging derivatives. Table 5.5 shows the amortized cost and weighted-average yields of held-to-maturity debt securities by contractual maturity. Table 5.5: Held-to-Maturity Debt Securities - Amortized Cost by Contractual Maturity Remaining contractual maturity Total Within one year After one year through five years After five years through ten years After ten years (in millions) amount Yield Amount Yield Amount Yield Amount Yield Amount Yield September 30, 2019 Held-to-maturity debt securities (1): Amortized cost: Securities of U.S. Treasury and federal agencies $ 44,774 2.12 % $ — — % $ 39,530 2.11 % $ 5,244 2.19 % $ — — % Securities of U.S. states and political subdivisions 12,719 4.99 — — 83 6.02 1,756 4.86 10,880 5.00 Federal agency and other mortgage-backed securities 95,637 3.10 — — 15 3.53 — — 95,622 3.10 Collateralized loan obligations 49 3.48 — — — — 49 3.48 — — Total held-to-maturity debt securities at amortized cost $ 153,179 2.97 % $ — — % $ 39,628 2.12 % $ 7,049 2.86 % $ 106,502 3.29 % (1) Weighted-average yields displayed by maturity bucket are weighted based on amortized cost and predominantly represent contractual coupon rates. Table 5.6 shows the fair value of held-to-maturity debt securities by contractual maturity. Table 5.6: Held-to-Maturity Debt Securities - Fair Value by Contractual Maturity Remaining contractual maturity Total Within one year After one year through five years After five years through ten years After ten years (in millions) amount Amount Amount Amount Amount September 30, 2019 Held-to-maturity debt securities: Fair value: Securities of U.S. Treasury and federal agencies $ 45,463 — 40,056 5,407 — Securities of U.S. states and political subdivisions 13,022 — 83 1,825 11,114 Federal agency and other mortgage-backed securities 97,745 — 15 — 97,730 Collateralized loan obligations 49 — — 49 — Total held-to-maturity debt securities at fair value $ 156,279 — 40,154 7,281 108,844
Realized Gains and Losses	Table 5.7 shows the gross realized gains and losses on sales and OTTI write-downs related to available-for-sale debt securities. Table 5.7: Realized Gains and Losses Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Gross realized gains $ 21 65 223 139 Gross realized losses (12 ) (3 ) (17 ) (17 ) OTTI write-downs (6 ) (5 ) (58 ) (23 ) Net realized gains from available-for-sale debt securities $ 3 57 148 99
Detail of OTTI Write-downs	Table 5.8 shows the detail of total OTTI write-downs included in earnings for available-for-sale debt securities. There were no OTTI write-downs on held-to-maturity debt securities during the first nine months of 2019 and 2018 . Table 5.8: Detail of OTTI Write-downs Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Debt securities OTTI write-downs included in earnings: Securities of U.S. states and political subdivisions $ — — 33 2 Mortgage-backed securities: Residential — — — 2 Commercial — 1 17 15 Corporate debt securities 6 — 8 — Other debt securities — 4 — 4 Total debt securities OTTI write-downs included in earnings $ 6 5 58 23
OTTI Write-downs Included in Earnings and the Related Change in OCI	Table 5.9 shows the detail of OTTI write-downs on available-for-sale debt securities included in earnings and the related changes in OCI for the same securities. Table 5.9: OTTI Write-downs Included in Earnings and the Related Changes in OCI Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 OTTI on debt securities Recorded as part of gross realized losses: Credit-related OTTI $ — 5 23 22 Intent-to-sell OTTI 6 — 35 1 Total recorded as part of gross realized losses 6 5 58 23 Changes to OCI for losses (reversal of losses) in non-credit-related OTTI (1): Securities of U.S. states and political subdivisions — — (1 ) (2 ) Residential mortgage-backed securities — — (1 ) (1 ) Commercial mortgage-backed securities 1 (5 ) 2 (6 ) Other debt securities 1 — 1 — Total changes to OCI for non-credit-related OTTI 2 (5 ) 1 (9 ) Total OTTI losses recorded on debt securities $ 8 — 59 14 (1) Represents amounts recorded to OCI for impairment of debt securities, due to factors other than credit, 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 debt securities due to non-credit factors.
Rollforward of OTTI Credit Loss	Table 5.10 presents a rollforward of the OTTI credit loss that has been recognized in earnings as a write-down of available-for-sale debt securities we still own (referred to as “credit-impaired” debt securities) and do not intend to sell. Recognized credit loss 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 loss. Table 5.10: Rollforward of OTTI Credit Loss Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Credit loss recognized, beginning of period $ 216 626 562 742 Additions: For securities with initial credit impairments — — 6 — For securities with previous credit impairments — 5 17 22 Total additions — 5 23 22 Reductions: For securities sold, matured, or intended/required to be sold (22 ) (68 ) (391 ) (199 ) For recoveries of previous credit impairments (1) — — — (2 ) Total reductions (22 ) (68 ) (391 ) (201 ) Credit loss recognized, end of period $ 194 563 194 563 (1) 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.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Allowance for Credit Losses, Loans Outstanding	Table 6.1 presents total loans outstanding by portfolio segment and class of financing receivable. Outstanding balances include unearned income, net deferred loan fees or costs, and unamortized discounts and premiums. These amounts were less than 1% of our total loans outstanding at September 30, 2019 , and December 31, 2018 . Table 6.1: Loans Outstanding (in millions) Sep 30, Dec 31, Commercial: Commercial and industrial $ 350,875 350,199 Real estate mortgage 121,936 121,014 Real estate construction 19,921 22,496 Lease financing 19,600 19,696 Total commercial 512,332 513,405 Consumer: Real estate 1-4 family first mortgage 290,604 285,065 Real estate 1-4 family junior lien mortgage 30,838 34,398 Credit card 39,629 39,025 Automobile 46,738 45,069 Other revolving credit and installment 34,774 36,148 Total consumer 442,583 439,705 Total loans $ 954,915 953,110 Our foreign loans are reported by respective class of financing receivable in the table above. Substantially all of our foreign loan portfolio is commercial loans. Table 6.2 presents total commercial foreign loans outstanding by class of financing receivable. Table 6.2: Commercial Foreign Loans Outstanding (in millions) Sep 30, Dec 31, Commercial foreign loans: Commercial and industrial $ 64,418 62,564 Real estate mortgage 7,056 6,731 Real estate construction 1,262 1,011 Lease financing 1,197 1,159 Total commercial foreign loans $ 73,933 71,465
Loans and Allowance for Credit Losses, Significant Activity	Table 6.3 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 fair value. This loan activity also includes participating interests, whereby we receive or transfer a portion of a loan. The table excludes purchased credit-impaired (PCI) loans, loans for which we have elected the fair value option, and government insured/ guaranteed real estate 1-4 family first mortgage loans because their loan activity normally does not impact the allowance for credit losses. Table 6.3: Loan Purchases, Sales, and Transfers 2019 2018 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Purchases $ 571 910 1,481 225 4 229 Sales (433 ) (85 ) (518 ) (438 ) (113 ) (551 ) Transfers (to) from MLHFS/LHFS (25 ) (37 ) (62 ) (21 ) (371 ) (392 ) Nine months ended September 30, Purchases $ 1,570 918 2,488 879 11 890 Sales (1,389 ) (417 ) (1,806 ) (1,192 ) (201 ) (1,393 ) Transfers (to) from MLHFS/LHFS (117 ) (1,889 ) (2,006 ) (541 ) (1,996 ) (2,537 )
Loans and Allowance for Credit Losses, Commitments to Lend	The contractual amount of our unfunded credit commitments, including unissued standby and commercial letters of credit, is summarized by portfolio segment and class of financing receivable in Table 6.4 . The table excludes the issued standby and commercial letters of credit and temporary advance arrangements described above. Table 6.4: Unfunded Credit Commitments (in millions) Sep 30, Dec 31, Commercial: Commercial and industrial $ 337,324 330,492 Real estate mortgage 8,125 6,984 Real estate construction 16,695 16,400 Total commercial 362,144 353,876 Consumer: Real estate 1-4 family first mortgage 39,648 29,736 Real estate 1-4 family junior lien mortgage 37,151 37,719 Credit card 114,717 109,840 Other revolving credit and installment 26,178 27,530 Total consumer 217,694 204,825 Total unfunded credit commitments $ 579,838 558,701
Loans and Allowance for Credit Losses, Allowance for Credit Losses	Table 6.5 presents the allowance for credit losses, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. Table 6.5: Allowance for Credit Losses Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Balance, beginning of period $ 10,603 11,110 10,707 11,960 Provision for credit losses 695 580 2,043 1,223 Interest income on certain impaired loans (1) (34 ) (42 ) (112 ) (128 ) Loan charge-offs: Commercial: Commercial and industrial (209 ) (209 ) (590 ) (507 ) Real estate mortgage (2 ) (9 ) (28 ) (30 ) Real estate construction — — (1 ) — Lease financing (12 ) (15 ) (35 ) (52 ) Total commercial (223 ) (233 ) (654 ) (589 ) Consumer: Real estate 1-4 family first mortgage (31 ) (45 ) (101 ) (141 ) Real estate 1-4 family junior lien mortgage (27 ) (47 ) (90 ) (141 ) Credit card (404 ) (376 ) (1,278 ) (1,185 ) Automobile (156 ) (214 ) (485 ) (730 ) Other revolving credit and installment (168 ) (161 ) (497 ) (505 ) Total consumer (786 ) (843 ) (2,451 ) (2,702 ) Total loan charge-offs (1,009 ) (1,076 ) (3,105 ) (3,291 ) Loan recoveries: Commercial: Commercial and industrial 62 61 151 216 Real estate mortgage 10 10 26 46 Real estate construction 8 2 13 12 Lease financing 4 8 15 18 Total commercial 84 81 205 292 Consumer: Real estate 1-4 family first mortgage 36 70 148 207 Real estate 1-4 family junior lien mortgage 49 56 140 171 Credit card 85 77 258 231 Automobile 80 84 266 279 Other revolving credit and installment 30 28 95 88 Total consumer 280 315 907 976 Total loan recoveries 364 396 1,112 1,268 Net loan charge-offs (645 ) (680 ) (1,993 ) (2,023 ) Other (6 ) (12 ) (32 ) (76 ) Balance, end of period $ 10,613 10,956 10,613 10,956 Components: Allowance for loan losses $ 9,715 10,021 9,715 10,021 Allowance for unfunded credit commitments 898 935 898 935 Allowance for credit losses $ 10,613 10,956 10,613 10,956 Net loan charge-offs (annualized) as a percentage of average total loans 0.27 % 0.29 0.28 0.29 Allowance for loan losses as a percentage of total loans 1.02 1.06 1.02 1.06 Allowance for credit losses as a percentage of total loans 1.11 1.16 1.11 1.16 (1) 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 changes in allowance attributable to the passage of time as interest income.
Loans and Allowance for Credit Losses, Allowance Activity by Portfolio Segment	Table 6.6 summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments. Table 6.6: Allowance Activity by Portfolio Segment 2019 2018 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Balance, beginning of period $ 6,298 4,305 10,603 6,711 4,399 11,110 Provision for credit losses 84 611 695 22 558 580 Interest income on certain impaired loans (10 ) (24 ) (34 ) (12 ) (30 ) (42 ) Loan charge-offs (223 ) (786 ) (1,009 ) (233 ) (843 ) (1,076 ) Loan recoveries 84 280 364 81 315 396 Net loan charge-offs (139 ) (506 ) (645 ) (152 ) (528 ) (680 ) Other (3 ) (3 ) (6 ) (1 ) (11 ) (12 ) Balance, end of period $ 6,230 4,383 10,613 6,568 4,388 10,956 Nine months ended September 30, Balance, beginning of period $ 6,417 4,290 10,707 6,632 5,328 11,960 Provision for credit losses 294 1,749 2,043 280 943 1,223 Interest income on certain impaired loans (35 ) (77 ) (112 ) (37 ) (91 ) (128 ) Loan charge-offs (654 ) (2,451 ) (3,105 ) (589 ) (2,702 ) (3,291 ) Loan recoveries 205 907 1,112 292 976 1,268 Net loan charge-offs (449 ) (1,544 ) (1,993 ) (297 ) (1,726 ) (2,023 ) Other 3 (35 ) (32 ) (10 ) (66 ) (76 ) Balance, end of period $ 6,230 4,383 10,613 6,568 4,388 10,956
Loans and Allowance for Credit Losses, by Impairment Methodology	Table 6.7 disaggregates our allowance for credit losses and recorded investment in loans by impairment methodology. Table 6.7: Allowance by Impairment Methodology Allowance for credit losses Recorded investment in loans (in millions) Commercial Consumer Total Commercial Consumer Total September 30, 2019 Collectively evaluated (1) $ 5,774 3,485 9,259 509,081 431,724 940,805 Individually evaluated (2) 456 898 1,354 3,251 10,252 13,503 PCI (3) — — — — 607 607 Total $ 6,230 4,383 10,613 512,332 442,583 954,915 December 31, 2018 Collectively evaluated (1) $ 5,903 3,361 9,264 510,180 421,574 931,754 Individually evaluated (2) 514 929 1,443 3,221 13,126 16,347 PCI (3) — — — 4 5,005 5,009 Total $ 6,417 4,290 10,707 513,405 439,705 953,110 (1) Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies , and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans. (2) Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables , and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans. (3) 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 and pursuant to amendments by ASU 2010-20 regarding allowance for PCI loans.
Loans and Allowance for Credit Losses, Loans by Credit Quality Indicator	Table 6.8 provides a breakdown of outstanding commercial loans by risk category. Criticized commercial loans at September 30, 2019 , included $2.3 billion on nonaccrual status. For additional information on nonaccrual loans, see Table 6.9 and 6.13. Table 6.8: Commercial Loans by Risk Category (in millions) Commercial and industrial Real estate mortgage Real estate construction Lease financing Total September 30, 2019 By risk category: Pass $ 335,812 118,276 19,720 18,481 492,289 Criticized 15,063 3,660 201 1,119 20,043 Total commercial loans (excluding PCI) 350,875 121,936 19,921 19,600 512,332 Total commercial PCI loans (carrying value) — — — — — Total commercial loans $ 350,875 121,936 19,921 19,600 512,332 December 31, 2018 By risk category: Pass $ 335,412 116,514 22,207 18,671 492,804 Criticized 14,783 4,500 289 1,025 20,597 Total commercial loans (excluding PCI) 350,195 121,014 22,496 19,696 513,401 Total commercial PCI loans (carrying value) 4 — — — 4 Total commercial loans $ 350,199 121,014 22,496 19,696 513,405
Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial	Table 6.9 provides past due information for commercial loans, which we monitor as part of our credit risk management practices. Table 6.9: Commercial Loans by Delinquency Status (in millions) Commercial and industrial Real estate mortgage Real estate construction Lease financing Total September 30, 2019 By delinquency status: Current-29 days past due (DPD) and still accruing $ 348,730 120,959 19,847 19,277 508,813 30-89 DPD and still accruing 600 280 42 251 1,173 90+ DPD and still accruing 6 28 — — 34 Nonaccrual loans 1,539 669 32 72 2,312 Total commercial loans (excluding PCI) 350,875 121,936 19,921 19,600 512,332 Total commercial PCI loans (carrying value) — — — — — Total commercial loans $ 350,875 121,936 19,921 19,600 512,332 December 31, 2018 By delinquency status: Current-29 DPD and still accruing $ 348,158 120,176 22,411 19,443 510,188 30-89 DPD and still accruing 508 207 53 163 931 90+ DPD and still accruing 43 51 — — 94 Nonaccrual loans 1,486 580 32 90 2,188 Total commercial loans (excluding PCI) 350,195 121,014 22,496 19,696 513,401 Total commercial PCI loans (carrying value) 4 — — — 4 Total commercial loans $ 350,199 121,014 22,496 19,696 513,405
Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer	Table 6.10 provides the outstanding balances of our consumer portfolio by delinquency status. Table 6.10: Consumer Loans by Delinquency Status (in millions) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Credit card Automobile Other revolving credit and installment Total September 30, 2019 By delinquency status: Current-29 DPD $ 276,336 30,171 38,632 45,599 34,472 425,210 30-59 DPD 1,173 231 298 824 110 2,636 60-89 DPD 418 114 208 240 86 1,066 90-119 DPD 187 70 188 74 73 592 120-179 DPD 158 73 302 1 20 554 180+ DPD 575 165 1 — 13 754 Government insured/guaranteed loans (1) 10,978 — — — — 10,978 Loans held at fair value 186 — — — — 186 Total consumer loans (excluding PCI) 290,011 30,824 39,629 46,738 34,774 441,976 Total consumer PCI loans (carrying value) (2) 593 14 — — — 607 Total consumer loans $ 290,604 30,838 39,629 46,738 34,774 442,583 December 31, 2018 By delinquency status: Current-29 DPD $ 263,881 33,644 38,008 43,604 35,794 414,931 30-59 DPD 1,411 247 292 1,040 140 3,130 60-89 DPD 549 126 212 314 87 1,288 90-119 DPD 257 74 192 109 80 712 120-179 DPD 225 77 320 2 27 651 180+ DPD 822 213 1 — 20 1,056 Government insured/guaranteed loans (1) 12,688 — — — — 12,688 Loans held at fair value 244 — — — — 244 Total consumer loans (excluding PCI) 280,077 34,381 39,025 45,069 36,148 434,700 Total consumer PCI loans (carrying value) (2) 4,988 17 — — — 5,005 Total consumer loans $ 285,065 34,398 39,025 45,069 36,148 439,705 (1) Represents loans whose repayments are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $6.3 billion at September 30, 2019 , compared with $7.7 billion at December 31, 2018 . (2) 27% of the adjusted unpaid principal balance for consumer PCI loans are 30+ DPD at September 30, 2019 , compared with 18% at December 31, 2018 .
Loans and Allowance for Credit Losses, Loans by FICO Score, Consumer	Table 6.11 provides a breakdown of our consumer portfolio by FICO. Substantially all of the scored consumer portfolio has an updated FICO of 680 and above, reflecting a strong current borrower credit profile. FICO is not available for certain loan types, or may not be required if we deem it unnecessary due to strong collateral and other borrower attributes. Substantially all loans not requiring a FICO score are securities-based loans originated through retail brokerage, and totaled $8.9 billion at both September 30, 2019 and December 31, 2018 . Table 6.11: Consumer Loans by FICO (in millions) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Credit card Automobile Other revolving credit and installment Total September 30, 2019 By FICO: < 600 $ 3,331 1,219 3,210 6,539 682 14,981 600-639 2,484 821 2,741 4,538 660 11,244 640-679 5,011 1,551 6,410 6,476 1,766 21,214 680-719 12,825 3,396 9,543 7,629 3,277 36,670 720-759 27,800 4,694 8,201 7,245 4,179 52,119 760-799 62,039 5,745 5,442 6,545 5,036 84,807 800+ 161,711 12,236 3,901 7,699 7,810 193,357 No FICO available 3,646 1,162 181 67 2,510 7,566 FICO not required — — — — 8,854 8,854 Government insured/guaranteed loans (1) 11,164 — — — — 11,164 Total consumer loans (excluding PCI) 290,011 30,824 39,629 46,738 34,774 441,976 Total consumer PCI loans (carrying value) (2) 593 14 — — — 607 Total consumer loans $ 290,604 30,838 39,629 46,738 34,774 442,583 December 31, 2018 By FICO: < 600 $ 4,273 1,454 3,292 7,071 697 16,787 600-639 2,974 994 2,777 4,431 725 11,901 640-679 5,810 1,898 6,464 6,225 1,822 22,219 680-719 13,568 3,908 9,445 7,354 3,384 37,659 720-759 27,258 5,323 7,949 6,853 4,395 51,778 760-799 57,193 6,315 5,227 5,947 5,322 80,004 800+ 151,465 13,190 3,794 7,099 8,411 183,959 No FICO available 4,604 1,299 77 89 2,507 8,576 FICO not required — — — — 8,885 8,885 Government insured/guaranteed loans (1) 12,932 — — — — 12,932 Total consumer loans (excluding PCI) 280,077 34,381 39,025 45,069 36,148 434,700 Total consumer PCI loans (carrying value) (2) 4,988 17 — — — 5,005 Total consumer loans $ 285,065 34,398 39,025 45,069 36,148 439,705 (1) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (2) 40% of the adjusted unpaid principal balance for consumer PCI loans have FICO scores less than 680 and 19% where no FICO is available to us at September 30, 2019 , compared with 45% and 15% , respectively, at December 31, 2018 .
Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer	Table 6.12 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. 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 due to industry data availability and portfolios acquired from or serviced by other institutions. Table 6.12: Consumer Loans by LTV/CLTV September 30, 2019 December 31, 2018 (in millions) Real estate 1-4 family first mortgage by LTV Real estate 1-4 family junior lien mortgage by CLTV Total Real estate 1-4 family first mortgage by LTV Real estate 1-4 family junior lien mortgage by CLTV Total By LTV/CLTV: 0-60% $ 149,800 14,902 164,702 147,666 15,753 163,419 60.01-80% 113,887 10,038 123,925 104,477 11,183 115,660 80.01-100% 13,054 3,965 17,019 12,372 4,874 17,246 100.01-120% (1) 919 1,168 2,087 1,211 1,596 2,807 > 120% (1) 346 402 748 484 578 1,062 No LTV/CLTV available 841 349 1,190 935 397 1,332 Government insured/guaranteed loans (2) 11,164 — 11,164 12,932 — 12,932 Total consumer loans (excluding PCI) 290,011 30,824 320,835 280,077 34,381 314,458 Total consumer PCI loans (carrying value) (3) 593 14 607 4,988 17 5,005 Total consumer loans $ 290,604 30,838 321,442 285,065 34,398 319,463 (1) 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. (2) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (3) 11% of the adjusted unpaid principal balance for consumer PCI loans have LTV/CLTV amounts greater than 80% at September 30, 2019 , compared with 10% at December 31, 2018 .
Loans and Allowance for Credit Losses, Nonaccrual Loans	Table 6.13 provides loans on nonaccrual status. PCI loans are excluded from this table because they continue to earn interest from accretable yield, independent of performance in accordance with their contractual terms. Table 6.13: Nonaccrual Loans (in millions) Sep 30, Dec 31, Commercial: Commercial and industrial $ 1,539 1,486 Real estate mortgage 669 580 Real estate construction 32 32 Lease financing 72 90 Total commercial 2,312 2,188 Consumer: Real estate 1-4 family first mortgage 2,261 3,183 Real estate 1-4 family junior lien mortgage 819 945 Automobile 110 130 Other revolving credit and installment 43 50 Total consumer 3,233 4,308 Total nonaccrual loans (excluding PCI) $ 5,545 6,496
Loans and Allowance for Credit Losses, 90 days or More Past Due and Still Accruing Loans	Table 6.14 shows non-PCI loans 90 days or more past due and still accruing by class for loans not government insured/guaranteed. Table 6.14: Loans 90 Days or More Past Due and Still Accruing (1) (in millions) Sep 30, 2019 Dec 31, 2018 Total (excluding PCI): $ 7,130 8,704 Less: FHA insured/VA guaranteed (1) 6,308 7,725 Total, not government insured/guaranteed $ 822 979 By segment and class, not government insured/guaranteed: Commercial: Commercial and industrial $ 6 43 Real estate mortgage 28 51 Real estate construction — — Total commercial 34 94 Consumer: Real estate 1-4 family first mortgage 100 124 Real estate 1-4 family junior lien mortgage 35 32 Credit card 491 513 Automobile 75 114 Other revolving credit and installment 87 102 Total consumer 788 885 Total, not government insured/guaranteed $ 822 979 (1) Represents loans whose repayments are predominantly
Loans and Allowance for Credit Losses, Impaired Loans	Table 6.15 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. Impaired loans generally have estimated losses which are included in the allowance for credit losses. We do have impaired loans with no allowance for credit losses when the loss content has been previously recognized through charge-offs, such as collateral dependent loans, or when loans are currently performing in accordance with their terms and no loss has been estimated. Impaired loans exclude PCI loans and loans that have been fully charged off or otherwise have zero recorded investment. Table 6.15 includes trial modifications that totaled $123 million at September 30, 2019 , and $149 million at December 31, 2018 . For additional information on our impaired loans and allowance for credit losses, see Note 1 (Summary of Significant Accounting Policies) in our 2018 Form 10-K. Table 6.15: Impaired Loans Summary Recorded investment (in millions) Unpaid principal balance Impaired loans Impaired loans with related allowance for credit losses Related allowance for credit losses September 30, 2019 Commercial: Commercial and industrial $ 2,719 2,077 1,853 300 Real estate mortgage 1,198 1,047 922 122 Real estate construction 71 44 44 9 Lease financing 105 83 83 25 Total commercial 4,093 3,251 2,902 456 Consumer: Real estate 1-4 family first mortgage (1) 8,458 7,994 4,704 486 Real estate 1-4 family junior lien mortgage 1,643 1,504 968 159 Credit card 504 504 504 199 Automobile 141 82 44 9 Other revolving credit and installment 175 168 150 45 Total consumer (2) 10,921 10,252 6,370 898 Total impaired loans (excluding PCI) $ 15,014 13,503 9,272 1,354 December 31, 2018 Commercial: Commercial and industrial $ 3,057 2,030 1,730 319 Real estate mortgage 1,228 1,032 1,009 154 Real estate construction 74 47 46 9 Lease financing 146 112 112 32 Total commercial 4,505 3,221 2,897 514 Consumer: Real estate 1-4 family first mortgage 12,309 10,738 4,420 525 Real estate 1-4 family junior lien mortgage 1,886 1,694 1,133 183 Credit card 449 449 449 172 Automobile 153 89 43 8 Other revolving credit and installment 162 156 136 41 Total consumer (2) 14,959 13,126 6,181 929 Total impaired loans (excluding PCI) $ 19,464 16,347 9,078 1,443 (1) Impaired loans includes reduction of $1.7 billion reclassified to MLHFS during the first nine months of 2019. (2) Includes the recorded investment of $1.2 billion at September 30, 2019 , and $1.3 billion at December 31, 2018, 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 may also have limited, if any, allowance when the recorded investment of the loan approximates estimated net realizable value as a result of charge-offs prior to a TDR modification.
Loans and Allowance for Credit Losses, Average Recorded Investment in Impaired Loans	Table 6.16 provides the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans by portfolio segment and class. Table 6.16: Average Recorded Investment in Impaired Loans Quarter ended September 30, Nine months ended September 30, 2019 2018 2019 2018 (in millions) Average recorded investment Recognized interest income Average recorded investment Recognized interest income Average recorded investment Recognized interest income Average recorded investment Recognized interest income Commercial: Commercial and industrial $ 2,036 26 2,325 59 2,173 99 2,316 138 Real estate mortgage 1,113 14 1,172 16 1,086 45 1,225 66 Real estate construction 48 3 66 2 51 5 62 4 Lease financing 78 1 117 — 92 1 127 1 Total commercial 3,275 44 3,680 77 3,402 150 3,730 209 Consumer: Real estate 1-4 family first mortgage 8,165 116 11,318 165 9,400 397 11,718 504 Real estate 1-4 family junior lien mortgage 1,561 24 1,775 29 1,622 76 1,832 87 Credit card 495 16 421 14 479 47 396 36 Automobile 83 3 87 2 85 10 85 8 Other revolving credit and installment 163 3 145 2 159 10 139 7 Total consumer 10,467 162 13,746 212 11,745 540 14,170 642 Total impaired loans (excluding PCI) $ 13,742 206 17,426 289 15,147 690 17,900 851 Interest income: Cash basis of accounting $ 55 92 190 257 Other (1) 151 197 500 594 Total interest income $ 206 289 690 851 (1) 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.
Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Modification by Type	Table 6.17 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. Loans that both modify and pay off within the period, as well as changes in recorded investment during the period for loans modified in prior periods, are not included in the table. Table 6.17: TDR Modifications Primary modification type (1) Financial effects of modifications (in millions) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Quarter ended September 30, 2019 Commercial: Commercial and industrial $ 13 9 209 231 39 0.67 % $ 9 Real estate mortgage — 4 72 76 — 0.91 4 Real estate construction — 1 15 16 — 1.00 1 Lease financing — — 2 2 — — — Total commercial 13 14 298 325 39 0.75 14 Consumer: Real estate 1-4 family first mortgage 24 4 199 227 — 2.11 16 Real estate 1-4 family junior lien mortgage 1 8 19 28 — 2.49 9 Credit card — 94 — 94 — 12.78 94 Automobile 2 3 12 17 7 5.30 3 Other revolving credit and installment — 14 2 16 — 8.38 14 Trial modifications (6) — — 6 6 — — — Total consumer 27 123 238 388 7 10.23 136 Total $ 40 137 536 713 46 9.32 % $ 150 Quarter ended September 30, 2018 Commercial: Commercial and industrial $ — 3 802 805 3 1.30 % $ 3 Real estate mortgage — 20 78 98 — 0.98 20 Real estate construction — — 15 15 — — — Lease financing — — 22 22 — — — Total commercial — 23 917 940 3 1.02 23 Consumer: Real estate 1-4 family first mortgage 58 4 225 287 1 2.27 30 Real estate 1-4 family junior lien mortgage 2 11 31 44 — 2.09 13 Credit card — 84 — 84 — 12.78 84 Automobile 7 6 17 30 9 5.95 6 Other revolving credit and installment — 12 4 16 — 8.25 12 Trial modifications (6) — — (20 ) (20 ) — — — Total consumer 67 117 257 441 10 8.98 145 Total $ 67 140 1,174 1,381 13 7.88 % $ 168 Primary modification type (1) Financial effects of modifications (in millions) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Nine months ended September 30, 2019 Commercial: Commercial and industrial $ 13 54 943 1,010 78 0.47 % $ 54 Real estate mortgage — 30 240 270 — 0.59 30 Real estate construction 13 1 31 45 — 1.00 1 Lease financing — — 2 2 — — — Total commercial 26 85 1,216 1,327 78 0.51 85 Consumer: Real estate 1-4 family first mortgage 87 9 674 770 1 1.96 54 Real estate 1-4 family junior lien mortgage 4 30 65 99 2 2.38 32 Credit card — 280 — 280 — 13.11 280 Automobile 6 7 38 51 21 4.84 7 Other revolving credit and installment — 37 6 43 — 7.92 37 Trial modifications (6) — — 11 11 — — — Total consumer 97 363 794 1,254 24 10.19 410 Total $ 123 448 2,010 2,581 102 8.52 % $ 495 Nine months ended September 30, 2018 Commercial: Commercial and industrial $ 3 17 1,739 1,759 23 0.95 % $ 17 Real estate mortgage — 37 297 334 — 0.94 37 Real estate construction — — 19 19 — — — Lease financing — — 61 61 — — — Total commercial 3 54 2,116 2,173 23 0.94 54 Consumer: Real estate 1-4 family first mortgage 168 22 817 1,007 4 2.31 96 Real estate 1-4 family junior lien mortgage 5 31 89 125 3 1.96 35 Credit card — 253 — 253 — 12.42 253 Automobile 10 14 42 66 23 6.25 14 Other revolving credit and installment — 37 8 45 — 8.04 37 Trial modifications (6) — — 12 12 — — — Total consumer 183 357 968 1,508 30 8.77 435 Total $ 186 411 3,084 3,681 53 7.90 % $ 489 (1) Amounts represent the recorded investment in loans after recognizing the effects of the TDR, if any. TDRs may have multiple types of concessions, but are presented only once in the first modification type based on the order presented in the table above. The reported amounts include loans remodified of $188 million and $545 million for the quarters ended September 30, 2019 and 2018, respectively, and $871 million and $1.4 billion for the first nine months of 2019 and 2018, 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 discharged in bankruptcy, loan renewals, term extensions and other interest and noninterest adjustments, but exclude modifications that also forgive principal and/or reduce the contractual interest rate. (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 deferring or legally forgiving principal (actual or contingent) of $16 million and $5 million for the quarters ended September 30, 2019 and 2018, and $22 million and $22 million for the first nine months of 2019 and 2018, respectively. (5) Reflects the effect of reduced interest rates on loans with an interest rate concession as one of its concession types, which includes loans reported as a principal primary modification type that also have an interest rate concession. (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.
Loans and Allowance for Credit Losses, Troubled Debt Restructuring, Current Defaults	Table 6.18 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. Table 6.18: Defaulted TDRs Recorded investment of defaults Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Commercial: Commercial and industrial $ 24 42 72 135 Real estate mortgage 5 35 38 75 Real estate construction 12 — 15 16 Total commercial 41 77 125 226 Consumer: Real estate 1-4 family first mortgage 8 11 32 44 Real estate 1-4 family junior lien mortgage 2 3 11 10 Credit card 23 20 65 57 Automobile 2 4 9 11 Other revolving credit and installment 2 2 5 4 Total consumer 37 40 122 126 Total $ 78 117 247 352
Loans and Allowance for Credit Losses, Purchased Credit Impaired Loans, Loans Outstanding	Table 6.19 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. Table 6.19: PCI Loans (in millions) Sep 30, Dec 31, Total commercial $ — 4 Consumer: Real estate 1-4 family first mortgage 593 4,988 Real estate 1-4 family junior lien mortgage 14 17 Total consumer 607 5,005 Total PCI loans (carrying value) $ 607 5,009 Total PCI loans (unpaid principal balance) $ 1,072 7,348

Leasing Activity (Tables)

Leasing Activity (Tables)	9 Months Ended
	Sep. 30, 2019
Lessor Disclosure [Abstract]
Leasing Revenue	Table 7.1: Leasing Revenue (in millions) Quarter ended September 30, 2019 Nine months ended September 30, 2019 Interest income on lease financing $ 208 655 Other lease revenues: Variable revenues on lease financing 23 73 Fixed revenues on operating leases 339 1,069 Variable revenues on operating leases 16 48 Other lease-related revenues (1) 24 79 Lease income 402 1,269 Total leasing revenue $ 610 1,924 (1) Predominantly includes net gains on disposition of assets leased under operating leases or lease financings.
Investment in Lease Financing	Table 7.2: Investment in Lease Financing (in millions) Sep 30, 2019 Lease receivables $ 17,921 Residual asset values 4,244 Unearned income (2,565 ) Lease financing $ 19,600
Maturities of Lease Receivables	Table 7.3 presents future lease payments owed by our lessees. Table 7.3: Maturities of Lease Receivables September 30, 2019 (in millions) Direct financing and sales- type leases Operating leases Remainder of 2019 $ 1,454 258 2020 5,656 864 2021 4,557 609 2022 2,532 425 2023 1,391 285 Thereafter 2,331 626 Total lease receivables $ 17,921 3,067
Lessee Disclosure [Abstract]
Operating Lease Right of Use (ROU) Assets and Lease Liabilities	Table 7.4 presents balances for our operating leases. Table 7.4: Operating Lease Right of Use (ROU) Assets and Lease Liabilities (in millions) Sep 30, 2019 ROU assets $ 4,856 Lease liabilities 5,383
Lease Costs	Table 7.5 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 7.5: Lease Costs (in millions) Quarter ended September 30, 2019 Nine months ended September 30, 2019 Fixed lease expense - operating leases $ 302 890 Variable lease expense 81 234 Other (1) (40 ) (57 ) Total lease costs $ 343 1,067 (1) Predominantly includes sublease rental income and gains recognized from sale leaseback transactions.
Lease Payments on Operating Leases Prior to Adoption of ASU 2016-02 - Leases	Table 7.6: Lease Payments on Operating Leases Prior to Adoption of ASU 2016-02 - Leases (in millions) December 31, 2018 2019 $ 1,174 2020 1,056 2021 880 2022 713 2023 577 Thereafter 1,654 Total $ 6,054
Lease Payments on Operating Leases Subsequent to Adoption of ASU 2016-02 - Leases	Table 7.7: Lease Payments on Operating Leases Subsequent to Adoption of ASU 2016-02 - Leases (in millions, except for weighted averages) September 30, 2019 Remainder of 2019 $ 128 2020 1,155 2021 1,004 2022 854 2023 713 Thereafter 2,251 Total lease payments 6,105 Less: imputed interest 722 Total operating lease liabilities $ 5,383 Weighted average remaining lease term (in years) 7.3 Weighted average discount rate 3.2 %

Equity Securities (Tables)

Equity Securities (Tables)	9 Months Ended
	Sep. 30, 2019
Equity Securities [Abstract]
Equity Securities	Table 8.1 provides a summary of our equity securities by business purpose and accounting method, including equity securities with readily determinable fair values (marketable) and those without readily determinable fair values (nonmarketable). Table 8.1: Equity Securities (in millions) Sep 30, Dec 31, Held for trading at fair value: Marketable equity securities $ 24,436 19,449 Not held for trading: Fair value: Marketable equity securities (1) 6,639 4,513 Nonmarketable equity securities 7,293 5,594 Total equity securities at fair value 13,932 10,107 Equity method: Low-income housing tax credit investments 11,068 10,999 Private equity 3,425 3,832 Tax-advantaged renewable energy 3,143 3,073 New market tax credit and other 390 311 Total equity method 18,026 18,215 Other: Federal Reserve Bank stock and other at cost (2) 5,021 5,643 Private equity (3) 2,469 1,734 Total equity securities not held for trading 39,448 35,699 Total equity securities $ 63,884 55,148 (1) Includes $3.5 billion and $3.2 billion at September 30, 2019 , and December 31, 2018 , respectively, related to securities held as economic hedges of our deferred compensation plan obligations. (2) Includes $5.0 billion and $5.6 billion at September 30, 2019 , and December 31, 2018 , respectively, related to investments in Federal Reserve Bank and Federal Home Loan Bank stock. (3) Represents nonmarketable equity securities accounted for under the measurement alternative.
Net Gains (Losses) from Equity Securities Not Held for Trading	Table 8.2 provides a summary of the net gains and losses from equity securities not held for trading. Gains and losses for securities held for trading are reported in net gains from trading activities. Table 8.2: Net Gains (Losses) from Equity Securities Not Held for Trading Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ 116 103 757 139 Nonmarketable equity securities 1,477 822 3,145 1,525 Total equity securities carried at fair value 1,593 925 3,902 1,664 Net gains (losses) from nonmarketable equity securities not carried at fair value: Impairment write-downs (43 ) (45 ) (110 ) (302 ) Net unrealized gains related to measurement alternative observable transactions 158 51 489 314 Net realized gains on sale 623 204 1,029 1,101 All other — — — 34 Total nonmarketable equity securities not carried at fair value 738 210 1,408 1,147 Net losses from economic hedge derivatives (1) (1,375 ) (719 ) (2,918 ) (1,317 ) Total net gains from equity securities $ 956 416 2,392 1,494 (1) Includes net gains (losses) on derivatives not designated as hedging instruments.
Gains (Losses) from Measurement Alternative Equity Securities	Table 8.3 provides additional information about the impairment write-downs and observable price adjustments related to nonmarketable equity securities accounted for under the measurement alternative. Gains and losses related to these adjustments are also included in Table 8.2. Table 8.3: Net Gains (Losses) from Measurement Alternative Equity Securities Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 158 68 500 339 Gross unrealized losses due to observable price changes — (17 ) (11 ) (25 ) Impairment write-downs (20 ) (6 ) (53 ) (18 ) Realized net gains from sale 36 186 161 277 Total net gains recognized during the period $ 174 231 597 573 Table 8.4 presents cumulative carrying value adjustments to nonmarketable equity securities accounted for under the measurement alternative that were still held as of the balance sheet date. Table 8.4: Measurement Alternative Cumulative Gains (Losses) (in millions) Sep 30, Dec 31, Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 889 415 Gross unrealized losses due to observable price changes (36 ) (25 ) Impairment write-downs (71 ) (33 )

Other Assets (Tables)

Other Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Other Assets [Abstract]
Components of Other Assets	Table 9.1 presents the components of other assets. Table 9.1: Other Assets (in millions) Sep 30, Dec 31, Corporate/bank-owned life insurance $ 19,983 19,751 Accounts receivable (1) 40,246 34,281 Interest receivable 5,962 6,084 Customer relationship and other amortized intangibles 451 545 Foreclosed assets: Residential real estate: Government insured/guaranteed (1) 59 88 Non-government insured/guaranteed 177 229 Other 201 134 Operating lease assets (lessor) 8,478 9,036 Operating lease ROU assets (lessee) (2) 4,856 — Due from customers on acceptances 284 258 Other 9,027 9,444 Total other assets $ 89,724 79,850 (1) Certain government-guaranteed residential real estate mortgage loans upon foreclosure are included in Accounts receivable. For more information, see Note 1 (Summary of Significant Accounting Policies) in our 2018 Form 10-K. (2) We recognized operating lease right of use (ROU) assets effective January 1, 2019, in connection with the adoption of ASU 2016-02 – Leases. For more information, see Note 1 (Summary of Significant Accounting Policies).

Securitizations and Variable _2

Securitizations and Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2019
Securitizations and Variable Interest Entities [Abstract]
Balance Sheet Transactions With VIEs	Table 10.1 provides the classifications of assets and liabilities in our balance sheet for our transactions with VIEs. Subsequent tables within this Note further segregate these transactions by structure type. Table 10.1: Balance Sheet Transactions with VIEs (in millions) VIEs that we do not consolidate VIEs that we consolidate Transfers that we account for as secured borrowings (1) Total September 30, 2019 Cash and due from banks $ — 10 — 10 Interest-earning deposits with banks — 118 — 118 Debt securities (2): Trading debt securities 1,915 61 201 2,177 Available-for-sale debt securities 1,696 — — 1,696 Held-to-maturity debt securities 619 — — 619 Loans 1,406 13,134 84 14,624 Mortgage servicing rights 11,381 — — 11,381 Derivative assets 178 — — 178 Equity securities 11,117 100 — 11,217 Other assets — 214 3 217 Total assets 28,312 13,637 288 42,237 Short-term borrowings — — 200 200 Derivative liabilities 1 — (3) — 1 Accrued expenses and other liabilities 196 202 (3) 1 399 Long-term debt 3,822 722 (3) 83 4,627 Total liabilities 4,019 924 284 5,227 Noncontrolling interests — 39 — 39 Net assets $ 24,293 12,674 4 36,971 December 31, 2018 Cash and due from banks $ — 139 — 139 Interest-earning deposits with banks — 8 — 8 Debt securities (2): Trading debt securities 2,110 45 200 2,355 Available-for-sale debt securities 2,686 — 317 3,003 Held-to-maturity debt securities 510 — — 510 Loans 1,433 13,564 94 15,091 Mortgage servicing rights 14,761 — — 14,761 Derivative assets 53 — — 53 Equity securities 11,041 85 — 11,126 Other assets — 221 6 227 Total assets 32,594 14,062 617 47,273 Short-term borrowings — — 493 493 Derivative liabilities 26 — (3) — 26 Accrued expenses and other liabilities 231 191 (3) 8 430 Long-term debt 3,870 816 (3) 93 4,779 Total liabilities 4,127 1,007 594 5,728 Noncontrolling interests — 34 — 34 Net assets $ 28,467 13,021 23 41,511 (1) 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. (2) Excludes certain debt securities related to loans serviced for the Federal National Mortgage Association (FNMA), Federal Home Loan Mortgage Corporation (FHLMC) and Government National Mortgage Association (GNMA). (3) There were no VIE liabilities with recourse to the general credit of Wells Fargo for the periods presented.
Unconsolidated VIEs	Table 10.2 provides 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 (unless we are servicer and have other significant forms of involvement) or if we were the sponsor only or sponsor and servicer but do not have any other forms of significant 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 (other than those held temporarily in 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 of the unconsolidated VIEs. We also exclude from the table secured borrowing transactions with unconsolidated VIEs (for information on these transactions, see the Transactions with Consolidated VIEs and Secured Borrowings section in this Note). Table 10.2: Unconsolidated VIEs Carrying value – asset (liability) (in millions) Total VIE assets Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Net assets September 30, 2019 Residential mortgage loan securitizations: Conforming (2) $ 1,112,618 2,043 10,469 — (134 ) 12,378 Other/nonconforming 7,869 13 47 — — 60 Commercial mortgage securitizations 157,940 2,109 865 110 (42 ) 3,042 Collateralized debt obligations: Debt securities 619 — — 9 (20 ) (11 ) Asset-based finance structures 218 117 — — — 117 Tax credit structures 37,354 12,356 — — (3,822 ) 8,534 Collateralized loan obligations 132 1 — — — 1 Investment funds 210 49 — — — 49 Other 1,436 65 — 58 — 123 Total $ 1,318,396 16,753 11,381 177 (4,018 ) 24,293 Maximum exposure to loss Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Total exposure Residential mortgage loan securitizations: Conforming $ 2,043 10,469 — 960 13,472 Other/nonconforming 13 47 — — 60 Commercial mortgage securitizations 2,109 865 110 11,884 14,968 Collateralized debt obligations: Debt securities — — 9 20 29 Asset-based finance structures 117 — — 71 188 Tax credit structures 12,356 — — 1,252 13,608 Collateralized loan obligations 1 — — — 1 Investment funds 49 — — — 49 Other 65 — 61 157 283 Total $ 16,753 11,381 180 14,344 42,658 (continued on following page) (continued from previous page) Carrying value – asset (liability) (in millions) Total VIE assets Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Net assets December 31, 2018 Residential mortgage loan securitizations: Conforming (2) $ 1,172,833 2,377 13,811 — (171 ) 16,017 Other/nonconforming 10,596 453 57 — — 510 Commercial mortgage securitizations 153,350 2,409 893 (22 ) (40 ) 3,240 Collateralized debt obligations: Debt securities 659 — — 5 (20 ) (15 ) Asset-based finance structures 304 205 — — — 205 Tax credit structures 35,185 12,087 — — (3,870 ) 8,217 Collateralized loan obligations 2 — — — — — Investment funds 185 42 — — — 42 Other 1,688 207 — 44 — 251 Total $ 1,374,802 17,780 14,761 27 (4,101 ) 28,467 Maximum exposure to loss Debt and equity interests (1) Servicing assets Derivatives Other commitments and guarantees Total exposure Residential mortgage loan securitizations: Conforming $ 2,377 13,811 — 1,183 17,371 Other/nonconforming 453 57 — — 510 Commercial mortgage securitizations 2,409 893 28 11,563 14,893 Collateralized debt obligations: Debt securities — — 5 20 25 Asset-based finance structures 205 — — 71 276 Tax credit structures 12,087 — — 1,420 13,507 Collateralized loan obligations — — — — — Investment funds 42 — — — 42 Other 207 — 45 158 410 Total $ 17,780 14,761 78 14,415 47,034 (1) Includes total equity interests of $11.1 billion and $11.0 billion at September 30, 2019 , and December 31, 2018 , respectively. 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. (2) Excludes assets and related liabilities with a recorded carrying value on our balance sheet of $578 million and $1.2 billion at September 30, 2019 , and December 31, 2018 , respectively, for certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. The recorded carrying value represents the amount that would be payable if the Company was to exercise the repurchase option. The carrying amounts are excluded from the table because the loans eligible for repurchase do not represent interests in the VIEs.
Cash Flows from Sales and Securitization Activity	Table 10.3 presents the cash flows for our transfers accounted for as sales in which we have continuing involvement with the transferred financial assets. Table 10.3: Cash Flows From Sales and Securitization Activity Mortgage loans (in millions) 2019 2018 Quarter ended September 30, Proceeds from securitizations and whole loan sales $ 52,274 53,792 Fees from servicing rights retained 793 812 Cash flows from other interests held (1) 131 221 Repurchases of assets/loss reimbursements (2): Non-agency securitizations and whole loan transactions 1,369 2 Agency securitizations (3) 26 17 Servicing advances, net of repayments (73 ) (24 ) Nine months ended September 30, Proceeds from securitizations and whole loan sales $ 128,478 156,369 Fees from servicing rights retained 2,359 2,487 Cash flows from other interests held (1) 375 574 Repurchases of assets/loss reimbursements (2): Non-agency securitizations and whole loan transactions 1,370 4 Agency securitizations (3) 70 69 Servicing advances, net of repayments (166 ) (67 ) (1) Cash flows from other interests held predominantly include principal and interest payments received on retained bonds and excess cash flows received on interest-only strips. (2) Consists of cash paid to repurchase loans from investors, which may include the exercise of cleanup calls on securitizations, and cash paid to investors to reimburse them for losses on individual loans that are already liquidated. (3) Represent loans repurchased from GNMA, FNMA, and FHLMC under representation and warranty provisions included in our loan sales contracts. Third quarter and first nine months of 2019 exclude $1.4 billion and $4.6 billion , respectively, in delinquent insured/guaranteed loans that we service and have exercised our option to purchase out of GNMA pools, compared with $1.5 billion and $6.2 billion , respectively, in the same periods of 2018. These loans are predominantly insured by the FHA or guaranteed by the VA.
Residential Mortgage Servicing Rights	Table 10.4 presents the key weighted-average assumptions we used to measure residential mortgage servicing rights at the date of securitization. Table 10.4: Residential Mortgage Servicing Rights Residential mortgage servicing rights 2019 2018 Quarter ended September 30, Prepayment speed (1) 13.2 % 11.2 Discount rate 7.4 7.6 Cost to service ($ per loan) (2) $ 101 128 Nine months ended September 30, Prepayment speed (1) 13.3 % 10.5 Discount rate 7.6 7.4 Cost to service ($ per loan) (2) $ 106 130 (1) 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. (2) Includes costs to service and unreimbursed foreclosure costs, which can vary period to period depending on the mix of modified government-guaranteed loans sold to GNMA.
Retained Interests from Unconsolidated VIEs	Table 10.5 provides key economic assumptions and the sensitivity of the current fair value of residential mortgage servicing rights and other interests held related to unconsolidated VIEs to immediate adverse changes in those assumptions. “Other interests held” relate to residential and commercial mortgage loan securitizations. Residential mortgage-backed securities retained in securitizations issued through GSEs, such as FNMA and 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. Table 10.5: Retained Interests from Unconsolidated VIEs Other interests held Residential mortgage servicing rights (1) Interest-only strips Commercial ($ in millions, except cost to service amounts) Subordinated bonds Senior bonds Fair value of interests held at September 30, 2019 $ 11,072 7 752 304 Expected weighted-average life (in years) 5.2 3.4 7.2 5.0 Key economic assumptions: Prepayment speed assumption (2) 12.4 % 18.0 Decrease in fair value from: 10% adverse change $ 521 — 25% adverse change 1,222 1 Discount rate assumption 6.9 % 14.1 4.0 2.7 Decrease in fair value from: 100 basis point increase $ 437 — 44 13 200 basis point increase 838 — 84 25 Cost to service assumption ($ per loan) 102 Decrease in fair value from: 10% adverse change 269 25% adverse change 672 Credit loss assumption 3.8 % — Decrease in fair value from: 10% higher losses $ 2 — 25% higher losses 5 — Fair value of interests held at December 31, 2018 $ 14,649 16 668 309 Expected weighted-average life (in years) 6.5 3.6 7.0 5.7 Key economic assumptions: Prepayment speed assumption (2) 9.9 % 17.7 Decrease in fair value from: 10% adverse change $ 530 1 25% adverse change 1,301 1 Discount rate assumption 8.1 % 14.5 4.3 3.7 Decrease in fair value from: 100 basis point increase $ 615 — 37 14 200 basis point increase 1,176 1 72 28 Cost to service assumption ($ per loan) 106 Decrease in fair value from: 10% adverse change 316 25% adverse change 787 Credit loss assumption 5.1 % — Decrease in fair value from: 10% higher losses $ 2 — 25% higher losses 5 — (1) Residential mortgage servicing rights include purchased servicing assets as well as servicing assets resulting from the transfer of loans. See narrative following this table for a discussion of commercial mortgage servicing rights. (2) 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.
Off-Balance Sheet Loans Sold Or Securitized	Table 10.6 presents information about the principal balances of off-balance sheet loans that were sold or securitized, including residential mortgage loans sold to FNMA, FHLMC, GNMA and other investors, for which we have some form of continuing involvement (including servicer). Delinquent loans include loans 90 days or more past due and loans in bankruptcy, regardless of delinquency status. For loans sold or securitized where servicing is our only form of continuing involvement, we would only experience a loss if we were required to repurchase a delinquent loan or foreclosed asset due to a breach in representations and warranties associated with our loan sale or servicing contracts. Table 10.6: Off-Balance Sheet Loans Sold or Securitized Net charge-offs (3) Total loans Delinquent loans and foreclosed assets (1) Nine months ended Sep 30, (in millions) Sep 30, 2019 Dec 31, 2018 Sep 30, 2019 Dec 31, 2018 2019 2018 Commercial: Real estate mortgage $ 108,091 105,173 904 1,008 109 244 Total commercial 108,091 105,173 904 1,008 109 244 Consumer: Real estate 1-4 family first mortgage 1,025,168 1,097,128 6,845 8,947 180 368 Real estate 1-4 family junior lien mortgage 14 — 1 — — — Total consumer 1,025,182 1,097,128 6,846 8,947 180 368 Total off-balance sheet sold or securitized loans (2) $ 1,133,273 1,202,301 7,750 9,955 289 612 (1) Includes $547 million and $675 million of commercial foreclosed assets and $398 million and $582 million of consumer foreclosed assets at September 30, 2019 , and December 31, 2018 , respectively. (2) At September 30, 2019 , and December 31, 2018 , the table includes total loans of $1.1 trillion at both dates, delinquent loans of $5.2 billion and $6.4 billion , and foreclosed assets of $280 million and $442 million , respectively, for FNMA, FHLMC and GNMA. (3) 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	Table 10.7 presents a summary of financial assets and liabilities for asset transfers accounted for as secured borrowings and involvements with consolidated VIEs. Carrying values of “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. Table 10.7: Transactions with Consolidated VIEs and Secured Borrowings Carrying value (in millions) Total VIE assets Assets Liabilities Noncontrolling interests Net assets September 30, 2019 Secured borrowings: Municipal tender option bond securitizations $ 200 204 (201 ) — 3 Residential mortgage securitizations 84 84 (83 ) — 1 Total secured borrowings 284 288 (284 ) — 4 Consolidated VIEs: Commercial and industrial loans and leases 7,426 7,411 (496 ) (15 ) 6,900 Nonconforming residential mortgage loan securitizations 1,385 1,210 (425 ) — 785 Commercial real estate loans 4,841 4,841 — — 4,841 Investment funds 170 170 (2 ) (20 ) 148 Other 5 5 (1 ) (4 ) — Total consolidated VIEs 13,827 13,637 (924 ) (39 ) 12,674 Total secured borrowings and consolidated VIEs $ 14,111 13,925 (1,208 ) (39 ) 12,678 December 31, 2018 Secured borrowings: Municipal tender option bond securitizations $ 627 523 (501 ) — 22 Residential mortgage securitizations 95 94 (93 ) — 1 Total secured borrowings 722 617 (594 ) — 23 Consolidated VIEs: Commercial and industrial loans and leases 8,215 8,204 (477 ) (14 ) 7,713 Nonconforming residential mortgage loan securitizations 1,947 1,732 (521 ) — 1,211 Commercial real estate loans 3,957 3,957 — — 3,957 Investment funds 155 155 (5 ) (15 ) 135 Other 14 14 (4 ) (5 ) 5 Total consolidated VIEs 14,288 14,062 (1,007 ) (34 ) 13,021 Total secured borrowings and consolidated VIEs $ 15,010 14,679 (1,601 ) (34 ) 13,044

Mortgage Banking Activities (Ta

Mortgage Banking Activities (Tables)	9 Months Ended
	Sep. 30, 2019
Mortgage Banking Activities [Abstract]
Analysis of Changes in Fair Value MSRs	Table 11.1 presents the changes in MSRs measured using the fair value method. Table 11.1: Analysis of Changes in Fair Value MSRs Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Fair value, beginning of period $ 12,096 15,411 14,649 13,625 Servicing from securitizations or asset transfers (1) 538 502 1,279 1,561 Sales and other (2) (4 ) (2 ) (286 ) (7 ) Net additions 534 500 993 1,554 Changes in fair value: Due to changes in valuation model inputs or assumptions: Mortgage interest rates (3) (718 ) 582 (2,811 ) 2,211 Servicing and foreclosure costs (4) 13 (9 ) 3 55 Discount rates (5) 188 (9 ) 179 (9 ) Prepayment estimates and other (6) (445 ) (33 ) (302 ) (51 ) Net changes in valuation model inputs or assumptions (962 ) 531 (2,931 ) 2,206 Changes due to collection/realization of expected cash flows over time (596 ) (462 ) (1,639 ) (1,405 ) Total changes in fair value (1,558 ) 69 (4,570 ) 801 Fair value, end of period $ 11,072 15,980 11,072 15,980 (1) Includes impacts associated with exercising cleanup calls on securitizations as well as our right to repurchase delinquent loans from GNMA loan securitization pools. Total reported MSRs may increase upon repurchase due to servicing liabilities associated with these delinquent GNMA loans. (2) Includes sales and transfers of MSRs, which can result in an increase of total reported MSRs if the sales or transfers are related to nonperforming loan portfolios or portfolios with servicing liabilities. (3) Includes prepayment speed changes as well as other valuation changes due to changes in mortgage interest rates (such as changes in estimated interest earned on custodial deposit balances). (4) Includes costs to service and unreimbursed foreclosure costs. (5) Reflects discount rate assumption change, excluding portion attributable to changes in mortgage interest rates. (6) Represents changes driven by updates to 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 and other external factors that occur independent of interest rate changes.
Analysis of Changes in Amortized MSRs	Table 11.2 presents the changes in amortized MSRs. Table 11.2: Analysis of Changes in Amortized MSRs Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Balance, beginning of period $ 1,407 1,407 1,443 1,424 Purchases 25 42 65 82 Servicing from securitizations or asset transfers 33 33 92 106 Amortization (68 ) (68 ) (203 ) (198 ) Balance, end of period (1) $ 1,397 1,414 1,397 1,414 Fair value of amortized MSRs: Beginning of period $ 1,897 2,309 2,288 2,025 End of period 1,813 2,389 1,813 2,389 (1) Commercial amortized MSRs are evaluated for impairment purposes by the following risk strata: agency (GSEs) for multi-family properties and non-agency. There was no valuation allowance recorded for the periods presented on the commercial amortized MSRs.
Managed Servicing Portfolio	We present the components of our managed servicing portfolio in Table 11.3 at unpaid principal balance for loans serviced and subserviced for others and at book value for owned loans serviced. Table 11.3: Managed Servicing Portfolio (in billions) Sep 30, 2019 Dec 31, 2018 Residential mortgage servicing: Serviced for others $ 1,083 1,164 Owned loans serviced (1) 346 334 Subserviced for others 3 4 Total residential servicing 1,432 1,502 Commercial mortgage servicing: Serviced for others 551 543 Owned loans serviced 122 121 Subserviced for others 9 9 Total commercial servicing 682 673 Total managed servicing portfolio $ 2,114 2,175 Total serviced for others $ 1,634 1,707 Ratio of MSRs to related loans serviced for others 0.76 % 0.94 (1) Excludes loans serviced by third parties.
Mortgage Banking Noninterest Income	Table 11.4 presents the components of mortgage banking noninterest income. Table 11.4: Mortgage Banking Noninterest Income Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Servicing income, net: Servicing fees: Contractually specified servicing fees $ 854 880 2,540 2,697 Late charges 34 40 97 126 Ancillary fees 36 49 112 136 Unreimbursed direct servicing costs (1) (118 ) (79 ) (272 ) (258 ) Net servicing fees 806 890 2,477 2,701 Changes in fair value of MSRs carried at fair value: Due to changes in valuation model inputs or assumptions (2) (A) (962 ) 531 (2,931 ) 2,206 Changes due to collection/realization of expected cash flows over time (596 ) (462 ) (1,639 ) (1,405 ) Total changes in fair value of MSRs carried at fair value (1,558 ) 69 (4,570 ) 801 Amortization (68 ) (68 ) (203 ) (198 ) Net derivative gains (losses) from economic hedges (3) (B) 678 (501 ) 2,795 (2,040 ) Total servicing income, net (142 ) 390 499 1,264 Net gains on mortgage loan origination/sales activities (4) 608 456 1,433 1,286 Total mortgage banking noninterest income $ 466 846 1,932 2,550 Market-related valuation changes to MSRs, net of hedge results (2)(3) (A)+(B) $ (284 ) 30 (136 ) 166 (1) Includes costs associated with foreclosures, unreimbursed interest advances to investors, and other interest costs. (2) Refer to the analysis of changes in fair value MSRs presented in Table 11.1 in this Note for more detail. (3) Represents results from economic hedges used to hedge the risk of changes in fair value of MSRs. See Note 15 (Derivatives) for additional discussion and detail. (4) Includes net gains (losses) of $58 million and $(376) million in the third quarter and first nine months of 2019 , respectively, and $167 million and $926 million in the third quarter and first nine months of 2018 , respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Gross Carrying Value of Intangible Assets And Accumulated Amortization	Table 12.1 presents the gross carrying value of intangible assets and accumulated amortization. Table 12.1: Intangible Assets September 30, 2019 December 31, 2018 (in millions) Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value Amortized intangible assets (1): MSRs (2) $ 4,318 (2,921 ) 1,397 4,161 (2,718 ) 1,443 Core deposit intangibles — — — 12,834 (12,834 ) — Customer relationship and other intangibles 3,937 (3,486 ) 451 3,994 (3,449 ) 545 Total amortized intangible assets $ 8,255 (6,407 ) 1,848 20,989 (19,001 ) 1,988 Unamortized intangible assets: MSRs (carried at fair value) (2) $ 11,072 14,649 Goodwill 26,388 26,418 Trademark 14 14 (1) Balances are excluded commencing in the period following full amortization. (2)
Amortization Expense for Intangible Assets	Table 12.2 provides the current year 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, 2019 . Future amortization expense may vary from these projections. Table 12.2: Amortization Expense for Intangible Assets (in millions) Amortized MSRs Customer relationship and other intangibles Total Nine months ended September 30, 2019 (actual) $ 203 87 290 Estimate for the remainder of 2019 $ 67 27 94 Estimate for year ended December 31, 2020 251 95 346 2021 216 81 297 2022 193 68 261 2023 165 59 224 2024 141 48 189
Allocation of Goodwill to Operating Segments	Table 12.3 shows the allocation of goodwill to our reportable operating segments. We assess goodwill for impairment at a reporting unit level, which is one level below the operating segments. Table 12.3: Goodwill (in millions) Community Banking Wholesale Banking Wealth and Investment Management Consolidated Company December 31, 2017 $ 16,849 8,455 1,283 26,587 Reclassification of goodwill held for sale to other assets (155 ) — — (155 ) Reduction in goodwill related to divested businesses and other (6 ) (1 ) — (7 ) September 30, 2018 (1) $ 16,688 8,454 1,283 26,425 December 31, 2018 $ 16,685 8,450 1,283 26,418 Reclassification of goodwill held for sale to other assets — (25 ) — (25 ) Reduction in goodwill related to divested businesses and other — — (7 ) (7 ) Foreign currency translation — 2 — 2 September 30, 2019 (1) $ 16,685 8,427 1,276 26,388 (1) At September 30, 2018 , others assets included goodwill classified as held-for-sale of $12 million related to the branch divestitures, which closed in November 2018. At September 30, 2019 , other assets included goodwill classified as held-for-sale of $25 million related to the sale of our Eastdil business, which closed in October 2019.

Guarantees, Pledged Assets an_2

Guarantees, Pledged Assets and Collateral and Other Commitments (Tables)	9 Months Ended
	Sep. 30, 2019
Guarantees [Abstract]
Guarantees - Carrying Value and Maximum Exposure to Loss	Table 13.1 shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts. Table 13.1: Guarantees – Carrying Value and Maximum Exposure to Loss Maximum exposure to loss (in millions) Carrying value of obligation (asset) Expires in one year or less Expires after one year through three years Expires after three years through five years Expires after five years Total Non- investment grade September 30, 2019 Standby letters of credit (1) $ 35 13,734 7,631 3,758 471 25,594 7,960 Securities lending and other indemnifications (2) — — 2 — 758 760 2 Written put options (3) (259 ) 14,081 10,600 2,008 373 27,062 16,953 Loans and MLHFS sold with recourse (4) 52 109 626 1,263 10,329 12,327 9,145 Factoring guarantees (5) — 715 — — — 715 681 Other guarantees 1 — — 3 4,805 4,808 1 Total guarantees $ (171 ) 28,639 18,859 7,032 16,736 71,266 34,742 December 31, 2018 Standby letters of credit (1) $ 40 14,636 7,897 3,398 497 26,428 8,027 Securities lending and other indemnifications (2) — — 1 — 1,044 1,045 1 Written put options (3) (185 ) 17,243 10,502 3,066 400 31,211 21,732 Loans and MLHFS sold with recourse (4) 54 104 653 1,207 10,163 12,127 9,079 Factoring guarantees (5) — 889 — — — 889 751 Other guarantees 1 — — 3 2,959 2,962 1 Total guarantees $ (90 ) 32,872 19,053 7,674 15,063 74,662 39,591 (1) Total maximum exposure to loss includes direct pay letters of credit (DPLCs) of $6.5 billion and $7.5 billion at September 30, 2019 , and December 31, 2018 , respectively. (2) Includes indemnifications provided to certain third-party clearing agents. Outstanding customer obligations under these arrangements were $81 million and $70 million with related collateral of $678 million and $974 million at September 30, 2019 , and December 31, 2018 , respectively. (3) Written put options, which are in the form of derivatives, are also included in the derivative disclosures in Note 15 (Derivatives). Carrying value net asset position is a result of certain deferred premium option trades. (4) Represent recourse provided, predominantly to the GSEs, on loans sold under various programs and arrangements. (5)
Pledged Assets	Table 13.2 provides the total carrying amount of pledged assets by asset type and the fair value of pledged off-balance sheet securities for securities financings. The table excludes pledged consolidated VIE assets of $13.6 billion and $14.1 billion at September 30, 2019 , and December 31, 2018 , respectively, which can only be used to settle the liabilities of those entities. The table also excludes $288 million and $617 million in assets pledged in transactions with VIE’s accounted for as secured borrowings at September 30, 2019 , and December 31, 2018 , respectively. See Note 10 (Securitizations and Variable Interest Entities) for additional information on consolidated VIE assets and secured borrowings. Table 13.2: Pledged Assets (in millions) Sep 30, Dec 31, Related to trading activities: Debt securities $ 113,861 96,616 Equity securities 9,634 9,695 Total pledged assets related to trading activities (1) 123,495 106,311 Related to non-trading activities: Debt securities and other (2) 55,979 62,438 Mortgage loans held for sale and loans (3) 425,280 453,894 Total pledged assets related to non-trading activities 481,259 516,332 Total pledged assets $ 604,754 622,643 (1) Consists of assets of $51.6 billion and $45.5 billion at September 30, 2019 , and December 31, 2018 , respectively and off-balance sheet securities of $71.9 billion and $60.8 billion as of the same dates, respectively, that are pledged as collateral for repurchase agreements and other securities financings. Of these amounts, $123.5 billion and $106.2 billion at September 30, 2019 , and December 31, 2018 , respectively, are pledged as collateral under agreements that permit the secured parties to sell or repledge the collateral. (2) Includes assets with a carrying value of $3.6 billion and $4.2 billion (fair value of $3.6 billion and $ 4.1 billion ) at September 30, 2019 , and December 31, 2018 , respectively, which are pledged as collateral under repurchase agreements that do not permit the secured parties to sell or repledge the collateral. Also includes assets of $39 million and $68 million at September 30, 2019 , and December 31, 2018 , respectively, that are pledged as collateral under repurchase agreements that permit the secured parties to sell or repledge the collateral. Substantially all other assets are pledged as collateral pursuant to agreements that do not permit the secured party to sell or repledge the collateral. (3) Includes mortgage loans held for sale of $12.0 billion and $7.4 billion at September 30, 2019 , and December 31, 2018 , respectively. Substantially all of the mortgage loans held for sale and loans are pledged as collateral under agreements that do not permit the secured parties to sell or repledge the collateral. Amounts exclude $578 million and $1.2 billion at September 30, 2019 , and December 31, 2018 , respectively, of pledged loans recorded on our balance sheet representing certain delinquent loans that are eligible for repurchase from GNMA loan securitizations.
Offsetting - Resale and Repurchase Agreements	Table 13.3 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. Substantially all 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 liability. Collateral we received includes securities or loans and is not recognized on our balance sheet. Collateral pledged or received 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 reported amount of such collateral to the amount of the related recognized asset or liability for each counterparty. In addition to the amounts included in Table 13.3 , we also have balance sheet netting related to derivatives that is disclosed in Note 15 (Derivatives). Table 13.3: Offsetting – Securities Financing Activities (in millions) Sep 30, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 135,178 112,662 Gross amounts offset in consolidated balance sheet (1) (12,527 ) (15,258 ) Net amounts in consolidated balance sheet (2) 122,651 97,404 Collateral not recognized in consolidated balance sheet (3) (121,864 ) (96,734 ) Net amount (4) $ 787 670 Liabilities: Repurchase and securities lending agreements Gross amounts recognized (5) $ 121,758 106,248 Gross amounts offset in consolidated balance sheet (1) (12,527 ) (15,258 ) Net amounts in consolidated balance sheet (6) 109,231 90,990 Collateral pledged but not netted in consolidated balance sheet (7) (108,981 ) (90,798 ) Net amount (8) $ 250 192 (1) Represents recognized amount of resale and repurchase agreements with counterparties subject to enforceable MRAs that have been offset in the consolidated balance sheet. (2) Includes $103.0 billion and $80.1 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at September 30, 2019 , and December 31, 2018 , respectively. Also includes securities purchased under long-term resale agreements (generally one year or more) classified in loans, which totaled $19.7 billion and $17.3 billion , at September 30, 2019 , and December 31, 2018 , respectively. (3) Represents the fair value of 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, 2019 , and December 31, 2018 , we have received total collateral with a fair value of $145.9 billion and $123.1 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 $73.4 billion at September 30, 2019 , and $60.8 billion at December 31, 2018 . (4) Represents the amount of our exposure that is not collateralized and/or is not subject to an enforceable MRA or MSLA. (5) For additional information on underlying collateral and contractual maturities, see the “Repurchase and Securities Lending Agreements” section in this Note. (6) Amount is classified in short-term borrowings on our consolidated balance sheet. (7) Represents the fair value of 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, 2019 , and December 31, 2018 , we have pledged total collateral with a fair value of $124.5 billion and $108.8 billion , respectively, of which, the counterparty does not have the right to sell or repledge $3.6 billion as of September 30, 2019 , and $4.4 billion as of December 31, 2018 . (8) Represents the amount of our obligation that is not covered by pledged collateral and/or is not subject to an enforceable MRA or MSLA.
Gross Obligations by Underlying Collateral Type and Contractual Maturities of Gross Obligations	Table 13.4 provides the gross amounts recognized on the balance sheet (before the effects of offsetting) of our liabilities for repurchase and securities lending agreements disaggregated by underlying collateral type. Table 13.4: Gross Obligations by Underlying Collateral Type (in millions) Sep 30, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 42,632 38,408 Securities of U.S. States and political subdivisions 22 159 Federal agency mortgage-backed securities 56,007 47,241 Non-agency mortgage-backed securities 1,794 1,875 Corporate debt securities 8,347 6,191 Asset-backed securities 2,384 2,074 Equity securities 2,038 992 Other 805 340 Total repurchases 114,029 97,280 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 127 222 Federal agency mortgage-backed securities — 2 Corporate debt securities 273 389 Equity securities (1) 7,322 8,349 Other 7 6 Total securities lending 7,729 8,968 Total repurchases and securities lending $ 121,758 106,248 (1) Equity securities are generally exchange traded and either re-hypothecated under margin lending agreements or obtained through contemporaneous securities borrowing transactions with other counterparties. Table 13.5 provides the contractual maturities of our gross obligations under repurchase and securities lending agreements. Table 13.5: Contractual Maturities of Gross Obligations (in millions) Overnight/continuous Up to 30 days 30-90 days >90 days Total gross obligation September 30, 2019 Repurchase agreements $ 101,997 4,042 3,836 4,154 114,029 Securities lending arrangements 7,583 — 146 — 7,729 Total repurchases and securities lending (1) $ 109,580 4,042 3,982 4,154 121,758 December 31, 2018 Repurchase agreements $ 86,574 3,244 2,153 5,309 97,280 Securities lending arrangements 8,669 — 299 — 8,968 Total repurchases and securities lending (1) $ 95,243 3,244 2,452 5,309 106,248 (1) Securities lending is executed under agreements that allow either party to terminate the transaction without notice, while repurchase agreements have a term structure to them that technically matures at a point in time. The overnight/continuous repurchase agreements require election of both parties to roll the trade rather than the election to terminate the arrangement as in securities lending.

Derivatives (Tables)

Derivatives (Tables)	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional or Contractual Amounts and Fair Values of Derivatives	Table 15.1 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. Table 15.1: Notional or Contractual Amounts and Fair Values of Derivatives September 30, 2019 December 31, 2018 Notional or contractual amount Fair value Notional or contractual amount Fair value (in millions) Derivative assets Derivative liabilities Derivative Derivative Derivatives designated as hedging instruments Interest rate contracts $ 182,909 2,922 1,460 177,511 2,237 636 Foreign exchange contracts (1) 32,408 305 1,662 34,176 573 1,376 Total derivatives designated as qualifying hedging instruments 3,227 3,122 2,810 2,012 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts (2) 303,430 355 379 173,215 849 369 Equity contracts 17,790 1,575 79 13,920 1,362 79 Foreign exchange contracts 18,305 386 58 19,521 225 80 Credit contracts – protection purchased 900 29 — 100 27 — Subtotal 2,345 516 2,463 528 Customer accommodation trading and other derivatives: Interest rate contracts 11,588,606 26,956 22,627 9,162,821 15,349 15,303 Commodity contracts 80,927 1,338 2,589 66,173 1,588 2,336 Equity contracts 255,258 6,003 8,085 217,890 6,183 5,931 Foreign exchange contracts 354,182 5,626 5,962 364,982 5,916 5,657 Credit contracts – protection sold 12,347 12 69 11,741 76 182 Credit contracts – protection purchased 23,494 81 16 20,880 175 98 Subtotal 40,016 39,348 29,287 29,507 Total derivatives not designated as hedging instruments 42,361 39,864 31,750 30,035 Total derivatives before netting 45,588 42,986 34,560 32,047 Netting (3) (30,908 ) (33,038 ) (23,790 ) (23,548 ) Total $ 14,680 9,948 10,770 8,499 (1) The notional amount for foreign exchange contracts at September 30, 2019 , and December 31, 2018 , excludes $10.1 billion and $11.2 billion , respectively, for certain derivatives that are combined for designation as a hedge on a single instrument. (2) Includes economic hedge derivatives used to hedge the risk of changes in the fair value of residential MSRs, MLHFS, loans, derivative loan commitments and other interests held. (3) Represents balance sheet netting of derivative asset and liability balances, related cash collateral and portfolio level counterparty valuation adjustments. See Table 15.2 for further information.
Gross Fair Values of Derivative Assets and Liabilities	Table 15.2 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 and 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” column in the following table includes $40.3 billion and $39.4 billion of gross derivative assets and liabilities, respectively, at September 30, 2019 , and $30.9 billion and $28.4 billion , respectively, at December 31, 2018 , 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 $5.3 billion and $3.6 billion , respectively, at September 30, 2019 , and $3.7 billion and $3.6 billion , respectively, at December 31, 2018 , 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 netting 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. We do not net non-cash collateral that we receive and pledge on the balance sheet. For disclosure purposes, we present the fair value of this non-cash collateral in the column titled “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 Table 15.2 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 include bilateral contractual arrangements that are not cleared through a central clearing organization but are typically subject to master netting arrangements. The percentage of our bilateral derivative transactions outstanding at period end in such markets, based on gross fair value, is provided within the following table. Other derivative contracts executed in over-the-counter or exchange-traded markets are settled through a central clearing organization and are excluded from this percentage. 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 13 (Guarantees, Pledged Assets and Collateral, and Other Commitments). Table 15.2: Gross Fair Values of Derivative Assets and Liabilities (in millions) Gross amounts recognized Gross amounts offset in consolidated balance sheet (1) Net amounts in consolidated balance sheet Gross amounts not offset in consolidated balance sheet (Disclosure-only netting) (2) Net amounts Percent exchanged in over-the-counter market (3) September 30, 2019 Derivative assets Interest rate contracts $ 30,233 (19,854 ) 10,379 (456 ) 9,923 97 % Commodity contracts 1,338 (875 ) 463 (1 ) 462 68 Equity contracts 7,578 (5,178 ) 2,400 (43 ) 2,357 69 Foreign exchange contracts 6,317 (4,926 ) 1,391 (16 ) 1,375 100 Credit contracts – protection sold 12 (9 ) 3 — 3 88 Credit contracts – protection purchased 110 (66 ) 44 (1 ) 43 97 Total derivative assets $ 45,588 (30,908 ) 14,680 (517 ) 14,163 Derivative liabilities Interest rate contracts $ 24,466 (21,637 ) 2,829 (905 ) 1,924 96 % Commodity contracts 2,589 (680 ) 1,909 (3 ) 1,906 87 Equity contracts 8,164 (5,096 ) 3,068 (274 ) 2,794 79 Foreign exchange contracts 7,682 (5,554 ) 2,128 (171 ) 1,957 100 Credit contracts – protection sold 69 (64 ) 5 (2 ) 3 98 Credit contracts – protection purchased 16 (7 ) 9 — 9 97 Total derivative liabilities $ 42,986 (33,038 ) 9,948 (1,355 ) 8,593 December 31, 2018 Derivative assets Interest rate contracts $ 18,435 (12,029 ) 6,406 (80 ) 6,326 90 % Commodity contracts 1,588 (849 ) 739 (4 ) 735 57 Equity contracts 7,545 (5,318 ) 2,227 (755 ) 1,472 78 Foreign exchange contracts 6,714 (5,355 ) 1,359 (35 ) 1,324 100 Credit contracts – protection sold 76 (73 ) 3 — 3 12 Credit contracts – protection purchased 202 (166 ) 36 (1 ) 35 78 Total derivative assets $ 34,560 (23,790 ) 10,770 (875 ) 9,895 Derivative liabilities Interest rate contracts $ 16,308 (13,152 ) 3,156 (567 ) 2,589 92 % Commodity contracts 2,336 (727 ) 1,609 (8 ) 1,601 85 Equity contracts 6,010 (3,877 ) 2,133 (110 ) 2,023 75 Foreign exchange contracts 7,113 (5,522 ) 1,591 (188 ) 1,403 100 Credit contracts – protection sold 182 (180 ) 2 (2 ) — 67 Credit contracts – protection purchased 98 (90 ) 8 — 8 11 Total derivative liabilities $ 32,047 (23,548 ) 8,499 (875 ) 7,624 (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 $336 million and $353 million related to derivative assets and $111 million and $152 million related to derivative liabilities at September 30, 2019 , and December 31, 2018 , respectively. Cash collateral totaled $4.3 billion and $6.7 billion , netted against derivative assets and liabilities, respectively, at September 30, 2019 , and $3.7 billion and $3.6 billion , respectively, at December 31, 2018 . (2) Represents the fair value of 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. (3) Over-the-counter percentages are calculated based on gross amounts recognized as of the respective balance sheet date.
Derivatives in Fair Value and Cash Flow Hedging Relationships	Table 15.3 shows the net gains (losses) related to derivatives in fair value and cash flow hedging relationships. Table 15.3: Gains (Losses) Recognized in Consolidated Statement of Income on Fair Value and Cash Flow Hedging Relationships Net interest income Noninterest income (in millions) Debt securities Loans Mortgage loans held for sale Deposits Long-term debt Other Total Quarter ended September 30, 2019 Total amounts presented in the consolidated statement of income $ 3,666 10,982 232 (2,324 ) (1,780 ) 1,528 12,304 Gains (losses) on fair value hedging relationships Interest contracts Amounts related to interest settlements on derivatives (1) (1 ) — 1 26 53 — 79 Recognized on derivatives (628 ) — (3 ) 30 2,880 — 2,279 Recognized on hedged items 631 — 1 (30 ) (2,809 ) — (2,207 ) Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 9 — — — (115 ) — (106 ) Recognized on derivatives (3) (2 ) — — — 86 (918 ) (834 ) Recognized on hedged items 3 — — — (124 ) 899 778 Net income (expense) recognized on fair value hedges 12 — (1 ) 26 (29 ) (19 ) (11 ) Gains (losses) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (73 ) — — — — (73 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (2 ) — (2 ) Net income (expense) recognized on cash flow hedges $ — (73 ) — — (2 ) — (75 ) Nine months ended September 30, 2019 Total amounts presented in the consolidated statement of income $ 11,388 33,652 579 (6,563 ) (5,607 ) 2,846 36,295 Gains (losses) on fair value hedging relationships: Interest contracts Amounts related to interest settlements on derivatives (1) 29 — 1 (4 ) 53 — 79 Recognized on derivatives (2,531 ) — (36 ) 588 7,813 — 5,834 Recognized on hedged items 2,544 — 32 (563 ) (7,646 ) — (5,633 ) Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 29 — — — (385 ) — (356 ) Recognized on derivatives (3) (11 ) — — — 583 (994 ) (422 ) Recognized on hedged items 12 — — — (576 ) 975 411 Net income (expense) recognized on fair value hedges 72 — (3 ) 21 (158 ) (19 ) (87 ) Gains (losses) on cash flow hedging relationships: Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (228 ) — — 1 — (227 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (6 ) — (6 ) Net income (expense) recognized on cash flow hedges $ — (228 ) — — (5 ) — (233 ) (continued on following page) (continued from previous page) Net interest income Noninterest income (in millions) Debt securities Loans Mortgage loans held for sale Deposits Long-term debt Other Total Quarter ended September 30, 2018 Total amounts presented in the consolidated statement of income $ 3,595 11,116 210 (1,499 ) (1,667 ) 633 12,388 Gains (losses) on fair value hedging relationships: Interest contracts Amounts related to interest settlements on derivatives (1) (34 ) — (1 ) (10 ) 39 — (6 ) Recognized on derivatives 386 — 10 (58 ) (1,119 ) — (781 ) Recognized on hedged items (410 ) — (12 ) 61 1,101 — 740 Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 8 — — — (118 ) — (110 ) Recognized on derivatives (3) 2 — — — (58 ) (139 ) (195 ) Recognized on hedged items (3 ) — — — 126 139 262 Net income (expense) recognized on fair value hedges (51 ) — (3 ) (7 ) (29 ) — (90 ) Gains (losses) on cash flow hedging relationships: Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (78 ) — — — — (78 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (1 ) — (1 ) Net income (expense) recognized on cash flow hedges $ — (78 ) — — (1 ) — (79 ) Nine months ended September 30, 2018 Total amounts presented in the consolidated statement of income $ 10,603 32,607 587 (3,857 ) (4,901 ) 1,720 36,759 Gains (losses) on fair value hedging relationships: Interest contracts Amounts related to interest settlements on derivatives (1) (158 ) — (3 ) (35 ) 291 — 95 Recognized on derivatives 1,692 1 21 (248 ) (4,331 ) — (2,865 ) Recognized on hedged items (1,730 ) (1 ) (27 ) 233 4,215 — 2,690 Foreign exchange contracts Amounts related to interest settlements on derivatives (1)(2) 23 — — — (300 ) — (277 ) Recognized on derivatives (3) 8 — — — (132 ) (889 ) (1,013 ) Recognized on hedged items (5 ) — — — 153 820 968 Net income (expense) recognized on fair value hedges (170 ) — (9 ) (50 ) (104 ) (69 ) (402 ) Gains (losses) on cash flow hedging relationships: Interest contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — (215 ) — — — — (215 ) Foreign exchange contracts Realized gains (losses) (pre-tax) reclassified from cumulative OCI into net income (4) — — — — (1 ) — (1 ) Net income (expense) recognized on cash flow hedges $ — (215 ) — — (1 ) — (216 ) (1) Includes changes in fair value due to the passage of time associated with the non-zero fair value amount at hedge inception. (2) The third quarter and first nine months of 2019 included $5 million and $19 million , respectively, and the third quarter and first nine months of 2018 included $(5) million and $(3) million of the time value component recognized as net interest income (expense) on forward derivatives hedging foreign currency debt securities and long-term debt that were excluded from the assessment of hedge effectiveness. (3) For certain fair value hedges of foreign currency risk, changes in fair value of cross-currency swaps attributable to changes in cross-currency basis spreads are excluded from the assessment of hedge effectiveness and recorded in other comprehensive income. See Note 21 (Other Comprehensive Income) for the amounts recognized in other comprehensive income. (4) See Note 21 (Other Comprehensive Income) for details of amounts reclassified to net income.
Hedged Items in Fair Value Hedging Relationships	Table 15.4 shows the carrying amount and associated cumulative basis adjustment related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships. Table 15.4: Hedged Items in Fair Value Hedging Relationship Hedged Items Currently Designated Hedged Items No Longer Designated (1) (in millions) Carrying Amount of Assets/(Liabilities) (2)(4) Hedge Accounting Basis Adjustment Assets/(Liabilities) (3) Carrying Amount of Assets/(Liabilities) (4) Hedge Accounting Basis Adjustment September 30, 2019 Available-for-sale debt securities (5) $ 37,112 1,623 9,435 274 Mortgage loans held for sale 1,231 (2 ) 864 (1 ) Deposits (48,824 ) (449 ) (33 ) — Long-term debt (124,854 ) (8,847 ) (25,699 ) 222 December 31, 2018 Available-for-sale debt securities (5) 37,857 (157 ) 4,938 238 Mortgage loans held for sale 448 7 — — Deposits (56,535 ) 115 — — Long-term debt (104,341 ) (742 ) (25,539 ) 366 (1) Represents hedged items no longer designated in qualifying fair value hedging relationships for which an associated basis adjustment exists at the balance sheet date. (2) Does not include the carrying amount of hedged items where only foreign currency risk is the designated hedged risk. The carrying amount excluded $1.1 billion for debt securities and $(5.0) billion for long-term debt as of September 30, 2019 , and $1.6 billion for debt securities and $(6.3) billion for long-term debt as of December 31, 2018 . (3) The balance includes $770 million and $122 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of September 30, 2019 , and $1.4 billion and $66 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of December 31, 2018 , on terminated hedges whereby the hedged items have subsequently been re-designated into existing hedges. (4) Represents the full carrying amount of the hedged asset or liability item as of the balance sheet date, except for circumstances in which only a portion of the asset or liability was designated as the hedged item in which case only the portion designated is presented. (5) Carrying amount represents the amortized cost.
Derivatives Not Designated as Hedging Instruments	Table 15.5 shows the net gains (losses) recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 15.5: Gains (Losses) on Derivatives Not Designated as Hedging Instruments Noninterest income (in millions) Mortgage banking Net gains (losses) from equity securities Net gains (losses) from trading activities Other Total Quarter ended September 30, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 736 — — — 736 Equity contracts — (1,375 ) — (6 ) (1,381 ) Foreign exchange contracts — — — 263 263 Credit contracts — — — (11 ) (11 ) Subtotal (2) 736 (1,375 ) — 246 (393 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) 95 — (355 ) — (260 ) Commodity contracts — — 65 — 65 Equity contracts — — 284 10 294 Foreign exchange contracts — — 78 — 78 Credit contracts — — (10 ) — (10 ) Subtotal 95 — 62 10 167 Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 831 (1,375 ) 62 256 (226 ) Nine months ended September 30, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,419 — — 7 2,426 Equity contracts — (2,918 ) — (6 ) (2,924 ) Foreign exchange contracts — — — 403 403 Credit contracts — — — (1 ) (1 ) Subtotal (2) 2,419 (2,918 ) — 403 (96 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) 392 — (861 ) — (469 ) Commodity contracts — — 143 — 143 Equity contracts — — (2,975 ) (396 ) (3,371 ) Foreign exchange contracts — — 9 — 9 Credit contracts — — (70 ) — (70 ) Subtotal 392 — (3,754 ) (396 ) (3,758 ) Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 2,811 (2,918 ) (3,754 ) 7 (3,854 ) (continued on following page) (continued from previous page) Noninterest income (in millions) Mortgage banking Net gains (losses) from equity securities Net gains (losses) from trading activities Other Total Quarter ended September 30, 2018 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (334 ) — — (1 ) (335 ) Equity contracts — (719 ) — 8 (711 ) Foreign exchange contracts — — — 78 78 Credit contracts — — — 4 4 Subtotal (2) (334 ) (719 ) — 89 (964 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) (67 ) — 298 (1 ) 230 Commodity contracts — — 14 — 14 Equity contracts — — (1,147 ) (112 ) (1,259 ) Foreign exchange contracts — — 258 — 258 Credit contracts — — (28 ) — (28 ) Subtotal (67 ) — (605 ) (113 ) (785 ) Net gains (losses) recognized related to derivatives not designated as hedging instruments $ (401 ) (719 ) (605 ) (24 ) (1,749 ) Nine months ended September 30, 2018 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (1,114 ) — — 5 (1,109 ) Equity contracts — (1,317 ) — 13 (1,304 ) Foreign exchange contracts — — — 405 405 Credit contracts — — — (2 ) (2 ) Subtotal (2) (1,114 ) (1,317 ) — 421 (2,010 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) (372 ) — 865 (1 ) 492 Commodity contracts — — 88 — 88 Equity contracts — — (33 ) (378 ) (411 ) Foreign exchange contracts — — 659 — 659 Credit contracts — — (22 ) — (22 ) Subtotal (372 ) — 1,557 (379 ) 806 Net gains (losses) recognized related to derivatives not designated as hedging instruments $ (1,486 ) (1,317 ) 1,557 42 (1,204 ) (1) Mortgage banking amounts for the third quarter and first nine months of 2019 are comprised of gains (losses) of $678 million and $2.8 billion , respectively, related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $58 million and $(376) million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. The corresponding amounts for the third quarter and first nine months of 2018 are comprised of gains (losses) of $(501) million and $(2.0) billion offset by gains (losses) of $167 million and $926 million , respectively. (2) Includes hedging gains (losses) of $0 million and $(36) million for the third quarter and first nine months of 2019 , respectively, and $10 million and $46 million for the third quarter and first nine months of 2018 , respectively, which partially offset hedge accounting ineffectiveness. (3) Amounts presented in mortgage banking noninterest income are gains (losses) on derivative loan commitments.
Sold and Purchased Credit Derivatives	Table 15.6 provides details of sold and purchased credit derivatives. Table 15.6: Sold and Purchased Credit Derivatives Notional amount (in millions) Fair value liability Protection sold (A) Protection sold – non- investment grade Protection purchased with identical underlyings (B) Net protection sold (A) - (B) Other protection purchased Range of maturities September 30, 2019 Credit default swaps on: Corporate bonds $ 1 2,686 771 1,988 698 2,189 2019 - 2029 Structured products 25 78 73 67 11 112 2022 - 2047 Credit protection on: Default swap index — 3,498 574 1,312 2,186 6,596 2019 - 2029 Commercial mortgage-backed securities index 32 330 76 305 25 50 2047 - 2058 Asset-backed securities index 8 41 41 41 — 1 2045 - 2046 Other 3 5,714 5,371 — 5,714 11,733 2019 - 2048 Total credit derivatives $ 69 12,347 6,906 3,713 8,634 20,681 December 31, 2018 Credit default swaps on: Corporate bonds $ 59 2,037 441 1,374 663 1,460 2019 - 2027 Structured products 62 133 128 121 12 113 2022 - 2047 Credit protection on: Default swap index 1 3,618 582 1,998 1,620 2,896 2019 - 2028 Commercial mortgage-backed securities index 49 389 109 363 26 51 2047 - 2058 Asset-backed securities index 9 42 42 42 — 1 2045 - 2046 Other 2 5,522 5,327 — 5,522 12,561 2018 - 2048 Total credit derivatives $ 182 11,741 6,629 3,898 7,843 17,082

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value, Measurements obtained from Third Party Pricing Services	Table 16.1 presents unadjusted fair value measurements obtained from third-party pricing services by fair value hierarchy level. Fair value measurements obtained from third-party pricing services that we have adjusted to determine the fair value recorded in our financial statements are excluded from Table 16.1 . Table 16.1: Fair Value Measurements obtained from Third-Party Pricing Services September 30, 2019 December 31, 2018 (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Trading debt securities 399 272 — 899 256 — Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 13,550 2,999 — 10,399 2,949 — Securities of U.S. states and political subdivisions — 40,150 38 — 48,377 43 Mortgage-backed securities — 171,917 37 — 160,162 41 Other debt securities (1) — 39,556 619 — 44,292 758 Total available-for-sale debt securities 13,550 254,622 694 10,399 255,780 842 Equity securities: Marketable — 161 — — 158 — Nonmarketable — — — — 1 — Total equity securities — 161 — — 159 — Derivative assets 17 — — 17 — — Derivative liabilities (18 ) — — (12 ) — — (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	Table 16.2 presents the balances of assets and liabilities recorded at fair value on a recurring basis. Table 16.2: Fair Value on a Recurring Basis (in millions) Level 1 Level 2 Level 3 Netting (1) Total September 30, 2019 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 22,313 3,141 — — 25,454 Securities of U.S. states and political subdivisions — 3,273 — — 3,273 Collateralized loan obligations — 653 232 — 885 Corporate debt securities — 12,286 33 — 12,319 Mortgage-backed securities — 35,771 — — 35,771 Asset-backed securities — 1,383 — — 1,383 Other trading debt securities — 21 7 — 28 Total trading debt securities 22,313 56,528 272 — 79,113 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 13,550 2,999 — — 16,549 Securities of U.S. states and political subdivisions — 40,150 353 — 40,503 Mortgage-backed securities: Federal agencies — 167,535 — — 167,535 Residential — 853 — — 853 Commercial — 4,189 37 — 4,226 Total mortgage-backed securities — 172,577 37 — 172,614 Corporate debt securities 37 5,489 367 — 5,893 Collateralized loan and other debt obligations (2) — 30,401 609 — 31,010 Asset-backed securities: Automobile loans and leases — 860 — — 860 Home equity loans — — — — — Other asset-backed securities — 3,688 118 — 3,806 Total asset-backed securities — 4,548 118 — 4,666 Other debt securities — 1 — — 1 Total available-for-sale debt securities 13,587 256,165 1,484 (3) — 271,236 Mortgage loans held for sale — 15,696 1,249 — 16,945 Loans held for sale — 1,500 1 — 1,501 Loans — — 185 — 185 Mortgage servicing rights (residential) — — 11,072 — 11,072 Derivative assets: Interest rate contracts 45 29,933 255 — 30,233 Commodity contracts — 1,335 3 — 1,338 Equity contracts 2,326 3,580 1,672 — 7,578 Foreign exchange contracts 17 6,291 9 — 6,317 Credit contracts — 56 66 — 122 Netting — — — (30,908 ) (30,908 ) Total derivative assets 2,388 41,195 2,005 (30,908 ) 14,680 Equity securities - excluding securities at NAV: Marketable 30,782 293 — — 31,075 Nonmarketable — 19 7,130 — 7,149 Total equity securities 30,782 312 7,130 — 38,224 Total assets included in the fair value hierarchy $ 69,070 371,396 23,398 (30,908 ) 432,956 Equity securities at NAV (4) 144 Total assets recorded at fair value 433,100 Derivative liabilities: Interest rate contracts $ (43 ) (24,311 ) (112 ) — (24,466 ) Commodity contracts — (2,556 ) (33 ) — (2,589 ) Equity contracts (1,705 ) (4,584 ) (1,875 ) — (8,164 ) Foreign exchange contracts (18 ) (7,629 ) (35 ) — (7,682 ) Credit contracts — (57 ) (28 ) — (85 ) Netting — — — 33,038 33,038 Total derivative liabilities (1,766 ) (39,137 ) (2,083 ) 33,038 (9,948 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (10,821 ) (107 ) — — (10,928 ) Mortgage-backed securities — (69 ) — — (69 ) Corporate debt securities — (4,820 ) — — (4,820 ) Equity securities (2,473 ) — — — (2,473 ) Other securities — — — — — Total short sale liabilities (13,294 ) (4,996 ) — — (18,290 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (15,060 ) (44,133 ) (2,085 ) 33,038 (28,240 ) (1) Represents balance sheet netting of derivative asset and liability balances, related cash collateral and portfolio level counterparty valuation adjustments. See Note 15 (Derivatives) for additional information. (2) Includes collateralized debt obligations of $609 million . (3) A majority of the balance consists of securities that are 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. (4) Consists of certain nonmarketable equity securities that are measured at fair value using NAV per share (or its equivalent) as a practical expedient and are excluded from the fair value hierarchy. (continued on following page) (continued from previous page) (in millions) Level 1 Level 2 Level 3 Netting (1) Total December 31, 2018 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 20,525 2,892 — — 23,417 Securities of U.S. states and political subdivisions — 3,272 3 — 3,275 Collateralized loan obligations — 673 237 — 910 Corporate debt securities — 10,723 34 — 10,757 Mortgage-backed securities — 30,715 — — 30,715 Asset-backed securities — 893 — — 893 Other trading debt securities — 6 16 — 22 Total trading debt securities 20,525 49,174 290 — 69,989 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 10,399 2,949 — — 13,348 Securities of U.S. states and political subdivisions — 48,820 444 — 49,264 Mortgage-backed securities: Federal agencies — 153,203 — — 153,203 Residential — 2,775 — — 2,775 Commercial — 4,184 41 — 4,225 Total mortgage-backed securities — 160,162 41 — 160,203 Corporate debt securities 34 5,867 370 — 6,271 Collateralized loan and other debt obligations (2) — 34,543 800 — 35,343 Asset-backed securities: Automobile loans and leases — 925 — — 925 Home equity loans — 112 — — 112 Other asset-backed securities — 4,056 389 — 4,445 Total asset-backed securities — 5,093 389 — 5,482 Other debt securities — 1 — — 1 Total available-for-sale debt securities 10,433 257,435 2,044 (3) — 269,912 Mortgage loans held for sale — 10,774 997 — 11,771 Loans held for sale — 1,409 60 — 1,469 Loans — — 244 — 244 Mortgage servicing rights (residential) — — 14,649 — 14,649 Derivative assets: Interest rate contracts 46 18,294 95 — 18,435 Commodity contracts — 1,535 53 — 1,588 Equity contracts 1,648 4,582 1,315 — 7,545 Foreign exchange contracts 17 6,689 8 — 6,714 Credit contracts — 179 99 — 278 Netting — — — (23,790 ) (23,790 ) Total derivative assets 1,711 31,279 1,570 (23,790 ) 10,770 Equity securities - excluding securities at NAV: Marketable 23,205 757 — — 23,962 Nonmarketable — 24 5,468 — 5,492 Total equity securities 23,205 781 5,468 — 29,454 Total assets included in the fair value hierarchy $ 55,874 350,852 25,322 (23,790 ) 408,258 Equity securities at NAV (4) 102 Total assets recorded at fair value 408,360 Derivative liabilities: Interest rate contracts $ (21 ) (16,217 ) (70 ) — (16,308 ) Commodity contracts — (2,287 ) (49 ) — (2,336 ) Equity contracts (1,492 ) (3,186 ) (1,332 ) — (6,010 ) Foreign exchange contracts (12 ) (7,067 ) (34 ) — (7,113 ) Credit contracts — (216 ) (64 ) — (280 ) Netting — — — 23,548 23,548 Total derivative liabilities (1,525 ) (28,973 ) (1,549 ) 23,548 (8,499 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (11,850 ) (411 ) — — (12,261 ) Mortgage-backed securities — (47 ) — — (47 ) Corporate debt securities — (4,505 ) — — (4,505 ) Equity securities (2,902 ) (2 ) — — (2,904 ) Other securities — (3 ) — — (3 ) Total short sale liabilities (14,752 ) (4,968 ) — — (19,720 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (16,277 ) (33,941 ) (1,551 ) 23,548 (28,221 ) (1) Represents balance sheet netting of derivative asset and liability balances and related cash collateral. See Note 15 (Derivatives) for additional information. (2) Includes collateralized debt obligations of $800 million . (3) A significant portion of the balance consists of securities that are 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. (4) Consists of certain nonmarketable equity securities that are measured at fair value using NAV per share (or its equivalent) as a practical expedient and are excluded from the fair value hierarchy.
Fair Value, Assets and Liabilities Measured on Recurring Basis, Level 3 Reconciliation	Table 16.3: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended September 30, 2019 Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (4) (in millions) Balance, beginning of period Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period Quarter ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — — — — Collateralized loan obligations 249 (11 ) — (4 ) — (2 ) 232 (13 ) Corporate debt securities 44 (2 ) — (4 ) — (5 ) 33 1 Other trading debt securities 14 (1 ) — (6 ) — — 7 — Total trading debt securities 307 (14 ) — (14 ) — (7 ) 272 (12 ) (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 391 — — (38 ) — — 353 — Mortgage-backed securities: Residential — — — — — — — — Commercial 41 — (1 ) (3 ) — — 37 — Total mortgage-backed securities 41 — (1 ) (3 ) — — 37 — Corporate debt securities 383 6 (8 ) (14 ) — — 367 — Collateralized loan and other debt obligations 649 5 (12 ) (33 ) — — 609 — Asset-backed securities: Other asset-backed securities 341 1 1 (72 ) — (153 ) 118 — Total asset-backed securities 341 1 1 (72 ) — (153 ) 118 — Total available-for-sale debt securities 1,805 12 (20 ) (160 ) — (153 ) 1,484 — (6) Mortgage loans held for sale 1,115 22 — (6 ) 121 (3 ) 1,249 22 (7) Loans held for sale 12 — — (12 ) 1 — 1 — Loans 202 — — (17 ) — — 185 (2 ) (7) Mortgage servicing rights (residential)(8) 12,096 (1,558 ) — 534 — — 11,072 (962 ) (7) Net derivative assets and liabilities: Interest rate contracts 205 71 — (133 ) — — 143 30 Commodity contracts (29 ) (85 ) — 61 — 23 (30 ) (6 ) Equity contracts (228 ) (298 ) — 263 — 60 (203 ) (80 ) Foreign exchange contracts (10 ) 17 — (33 ) — — (26 ) — Credit contracts 45 (8 ) — 1 — — 38 (8 ) Total derivative contracts (17 ) (303 ) — 159 — 83 (78 ) (64 ) (9) Equity securities: Nonmarketable 7,110 13 — — 7 — 7,130 13 Total equity securities 7,110 13 — — 7 — 7,130 13 (10) Other liabilities (2 ) — — — — — (2 ) — (7) (1) See Table 16.4 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) Assets and liabilities transferred out of level 3 are classified as level 2, except for $153 million of asset-backed securities that were transferred to loans during third quarter 2019. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.4 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, 2019 . Table 16.4: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended September 30, 2019 (in millions) Purchases Sales Issuances Settlements Net Quarter ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 107 (100 ) — (11 ) (4 ) Corporate debt securities 3 (7 ) — — (4 ) Other trading debt securities — — — (6 ) (6 ) Total trading debt securities 110 (107 ) — (17 ) (14 ) Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 12 (50 ) (38 ) Mortgage-backed securities: Residential — — — — — Commercial — — — (3 ) (3 ) Total mortgage-backed securities — — — (3 ) (3 ) Corporate debt securities 1 — — (15 ) (14 ) Collateralized loan and other debt obligations — — — (33 ) (33 ) Asset-backed securities: Other asset-backed securities — (4 ) 10 (78 ) (72 ) Total asset-backed securities — (4 ) 10 (78 ) (72 ) Total available-for-sale debt securities 1 (4 ) 22 (179 ) (160 ) Mortgage loans held for sale 23 (45 ) 87 (71 ) (6 ) Loans held for sale — — — (12 ) (12 ) Loans 1 — 2 (20 ) (17 ) Mortgage servicing rights (residential) (1) — (4 ) 538 — 534 Net derivative assets and liabilities: Interest rate contracts — — (1 ) (132 ) (133 ) Commodity contracts — — — 61 61 Equity contracts — — — 263 263 Foreign exchange contracts — — — (33 ) (33 ) Credit contracts 4 (3 ) — — 1 Total derivative contracts 4 (3 ) (1 ) 159 159 Equity securities: Nonmarketable — — — — — Total equity securities — — — — — Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (continued from previous page) Table 16.5 presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended September 30, 2018 . Table 16.5: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended September 30, 2018 Balance, beginning of period Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (in millions) Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period (4) Quarter ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — — — — 3 — Collateralized loan obligations 291 2 — (26 ) — (4 ) 263 1 Corporate debt securities 36 2 — 7 — (10 ) 35 2 Other trading debt securities 17 — — — — — 17 1 Total trading debt securities 347 4 — (19 ) — (14 ) 318 4 (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 559 — (3 ) 39 — — 595 — Mortgage-backed securities: Residential — — 1 (1 ) — — — — Commercial 53 (1 ) — (11 ) — — 41 (1 ) Total mortgage-backed securities 53 (1 ) 1 (12 ) — — 41 (1 ) Corporate debt securities 443 2 (2 ) (55 ) — — 388 — Collateralized loan and other debt obligations 1,037 44 (33 ) (205 ) — — 843 — Asset-backed securities: Other asset-backed securities 401 (4 ) (2 ) 7 — — 402 (3 ) Total asset-backed securities 401 (4 ) (2 ) 7 — — 402 (3 ) Total available-for-sale debt securities 2,493 41 (39 ) (226 ) — — 2,269 (4 ) (6) Mortgage loans held for sale 986 (12 ) — (8 ) 16 (2 ) 980 (12 ) (7) Loans held for sale 20 1 — 1 — — 22 — Loans 321 — — (35 ) — — 286 (5 ) (7) Mortgage servicing rights (residential) (8) 15,411 69 — 500 — — 15,980 531 (7) Net derivative assets and liabilities: Interest rate contracts (41 ) (103 ) — 36 — — (108 ) (43 ) Commodity contracts 26 29 — 6 — — 61 38 Equity contracts (339 ) (30 ) — 89 — 6 (274 ) (74 ) Foreign exchange contracts (15 ) (10 ) — 4 — — (21 ) (4 ) Credit contracts 24 5 — (2 ) — — 27 3 Total derivative contracts (345 ) (109 ) — 133 — 6 (315 ) (80 ) (9) Equity securities: Nonmarketable 5,806 817 — (295 ) — — 6,328 770 Total equity securities 5,806 817 — (295 ) — — 6,328 770 (10) Other liabilities (2 ) — — — — — (2 ) — (7) (1) See Table 16.6 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) All assets and liabilities transferred out of level 3 are classified as level 2. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.6 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, 2018 . Table 16.6: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended September 30, 2018 (in millions) Purchases Sales Issuances Settlements Net Quarter ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 75 (70 ) — (31 ) (26 ) Corporate debt securities 8 (1 ) — — 7 Other trading debt securities — — — — — Total trading debt securities 83 (71 ) — (31 ) (19 ) Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 69 (30 ) 39 Mortgage-backed securities: Residential — — — (1 ) (1 ) Commercial — — — (11 ) (11 ) Total mortgage-backed securities — — — (12 ) (12 ) Corporate debt securities — — — (55 ) (55 ) Collateralized loan and other debt obligations — (149 ) — (56 ) (205 ) Asset-backed securities: Other asset-backed securities — — 96 (89 ) 7 Total asset-backed securities — — 96 (89 ) 7 Total available-for-sale debt securities — (149 ) 165 (242 ) (226 ) Mortgage loans held for sale 17 (89 ) 104 (40 ) (8 ) Loans held for sale 1 — — — 1 Loans 2 — 5 (42 ) (35 ) Mortgage servicing rights (residential) (1) — (2 ) 502 — 500 Net derivative assets and liabilities: Interest rate contracts — — — 36 36 Commodity contracts — — — 6 6 Equity contracts 3 (37 ) — 123 89 Foreign exchange contracts — — — 4 4 Credit contracts 1 (2 ) — (1 ) (2 ) Total derivative contracts 4 (39 ) — 168 133 Equity securities: Nonmarketable — — — (295 ) (295 ) Total equity securities — — — (295 ) (295 ) Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). Table 16.7: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Nine months ended September 30, 2019 Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (4) (in millions) Balance, beginning of period Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period Nine months ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — (2 ) — (1 ) — — Collateralized loan obligations 237 (16 ) — 13 — (2 ) 232 (23 ) Corporate debt securities 34 1 — 3 1 (6 ) 33 3 Other trading debt securities 16 (3 ) — (6 ) — — 7 — Total trading debt securities 290 (18 ) — 8 1 (9 ) 272 (20 ) (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 444 1 5 (48 ) — (49 ) 353 — Mortgage-backed securities: Residential — — — — — — — — Commercial 41 — (1 ) (3 ) — — 37 — Total mortgage-backed securities 41 — (1 ) (3 ) — — 37 — Corporate debt securities 370 7 (5 ) (5 ) — — 367 — Collateralized loan and other debt obligations 800 18 (22 ) (187 ) — — 609 — Asset-backed securities: Other asset-backed securities 389 1 — (119 ) — (153 ) 118 — Total asset-backed securities 389 1 — (119 ) — (153 ) 118 — Total available-for-sale debt securities 2,044 27 (23 ) (362 ) — (202 ) 1,484 — (6) Mortgage loans held for sale 997 74 — (94 ) 281 (9 ) 1,249 75 (7) Loans held for sale 60 — — (4 ) 38 (93 ) 1 — Loans 244 1 — (60 ) — — 185 (6 ) (7) Mortgage servicing rights (residential) (8) 14,649 (4,570 ) — 993 — — 11,072 (2,931 ) (7) Net derivative assets and liabilities: Interest rate contracts 25 495 — (377 ) — — 143 179 Commodity contracts 4 (211 ) — 152 2 23 (30 ) (6 ) Equity contracts (17 ) (402 ) — 194 7 15 (203 ) (205 ) Foreign exchange contracts (26 ) 27 — (27 ) — — (26 ) 2 Credit contracts 35 (3 ) — 6 — — 38 2 Total derivative contracts 21 (94 ) — (52 ) 9 38 (78 ) (28 ) (9) Equity securities: Nonmarketable 5,468 1,663 — (1 ) 12 (12 ) 7,130 1,664 Total equity securities 5,468 1,663 — (1 ) 12 (12 ) 7,130 1,664 (10) Other liabilities (2 ) — — — — — (2 ) — (7) (1) See Table 16.8 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) Assets and liabilities transferred out of level 3 are classified as level 2, except for $153 million of asset-backed securities that were transferred to loans during third quarter 2019. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.8 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 first nine months of 2019 . Table 16.8: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Nine months ended September 30, 2019 (in millions) Purchases Sales Issuances Settlements Net Nine months ended September 30, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — (2 ) (2 ) Collateralized loan obligations 281 (252 ) — (16 ) 13 Corporate debt securities 14 (11 ) — — 3 Other trading debt securities — — — (6 ) (6 ) Total trading debt securities 295 (263 ) — (24 ) 8 Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 67 (115 ) (48 ) Mortgage-backed securities: Residential — — — — — Commercial — — — (3 ) (3 ) Total mortgage-backed securities — — — (3 ) (3 ) Corporate debt securities 12 — — (17 ) (5 ) Collateralized loan and other debt obligations — — — (187 ) (187 ) Asset-backed securities: Other asset-backed securities — (9 ) 133 (243 ) (119 ) Total asset-backed securities — (9 ) 133 (243 ) (119 ) Total available-for-sale debt securities 12 (9 ) 200 (565 ) (362 ) Mortgage loans held for sale 69 (185 ) 187 (165 ) (94 ) Loans held for sale 12 (2 ) — (14 ) (4 ) Loans 3 — 7 (70 ) (60 ) Mortgage servicing rights (residential) (1) — (286 ) 1,279 — 993 Net derivative assets and liabilities: Interest rate contracts — — (1 ) (376 ) (377 ) Commodity contracts — — — 152 152 Equity contracts — — — 194 194 Foreign exchange contracts — — — (27 ) (27 ) Credit contracts 12 (6 ) — — 6 Total derivative contracts 12 (6 ) (1 ) (57 ) (52 ) Equity securities: Nonmarketable — (1 ) — — (1 ) Total equity securities — (1 ) — — (1 ) Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the first nine months of 2018 , are presented in Table 16.9 . Table 16.9: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Nine months ended September 30, 2018 Balance, beginning of period Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) included in income related to assets and liabilities held at period end (in millions) Net income Other compre- hensive income Transfers into Level 3 (2) Transfers out of Level 3 (3) Balance, end of period (4) Nine months ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — — — — 3 — Collateralized loan obligations 354 (2 ) — (85 ) — (4 ) 263 — Corporate debt securities 31 2 — 13 — (11 ) 35 4 Other trading debt securities 19 (2 ) — — — — 17 — Total trading debt securities 407 (2 ) — (72 ) — (15 ) 318 4 (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 925 5 (5 ) (51 ) — (279 ) 595 — Mortgage-backed securities: Residential 1 — — (1 ) — — — — Commercial 75 — (2 ) (32 ) — — 41 (2 ) Total mortgage-backed securities 76 — (2 ) (33 ) — — 41 (2 ) Corporate debt securities 407 4 2 (25 ) — — 388 — Collateralized loan and other debt obligations 1,020 55 20 (252 ) — — 843 — Asset-backed securities: Other asset-backed securities 566 4 (10 ) (158 ) — — 402 (3 ) Total asset-backed securities 566 4 (10 ) (158 ) — — 402 (3 ) Total available-for-sale debt securities 2,994 68 5 (519 ) — (279 ) 2,269 (5 ) (6) Mortgage loans held for sale 998 (46 ) — (20 ) 56 (8 ) 980 (42 ) (7) Loans held for sale 14 2 — (15 ) 21 — 22 — Loans 376 (1 ) — (89 ) — — 286 (9 ) (7) Mortgage servicing rights (residential) (8) 13,625 801 — 1,554 — — 15,980 2,206 (7) Net derivative assets and liabilities: Interest rate contracts 71 (511 ) — 332 — — (108 ) (163 ) Commodity contracts 19 59 — (20 ) 3 — 61 60 Equity contracts (511 ) 27 — 153 — 57 (274 ) (67 ) Foreign exchange contracts 7 (35 ) — 7 — — (21 ) (23 ) Credit contracts 36 1 — (10 ) — — 27 (6 ) Total derivative contracts (378 ) (459 ) — 462 3 57 (315 ) (199 ) (9) Equity securities: Nonmarketable 5,203 1,510 — (391 ) 10 (4 ) 6,328 1,457 Total equity securities 5,203 1,510 — (391 ) 10 (4 ) 6,328 1,457 (10) Other liabilities (3 ) 1 — — — — (2 ) — (7) (1) See Table 16.10 for detail. (2) All assets and liabilities transferred into level 3 were previously classified within level 2. (3) All assets and liabilities transferred out of level 3 are classified as level 2. (4) 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. (5) Included in net gains (losses) from trading activities in the income statement. (6) Included in net gains (losses) on debt securities in the income statement. (7) Included in mortgage banking and other noninterest income in the income statement. (8) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). (9) Included in mortgage banking, trading activities, equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. (continued on following page) (continued from previous page) Table 16.10 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 first nine months of 2018 . Table 16.10: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Nine months ended September 30, 2018 (in millions) Purchases Sales Issuances Settlements Net Nine months ended September 30, 2018 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 346 (300 ) — (131 ) (85 ) Corporate debt securities 16 (3 ) — — 13 Other trading debt securities — — — — — Total trading debt securities 362 (303 ) — (131 ) (72 ) Available-for-sale debt securities: Securities of U.S. states and political subdivisions — (4 ) 79 (126 ) (51 ) Mortgage-backed securities: Residential — — — (1 ) (1 ) Commercial — — — (32 ) (32 ) Total mortgage-backed securities — — — (33 ) (33 ) Corporate debt securities 31 — — (56 ) (25 ) Collateralized loan and other debt obligations — (149 ) — (103 ) (252 ) Asset-backed securities: Other asset-backed securities — (8 ) 154 (304 ) (158 ) Total asset-backed securities — (8 ) 154 (304 ) (158 ) Total available-for-sale debt securities 31 (161 ) 233 (622 ) (519 ) Mortgage loans held for sale 64 (240 ) 271 (115 ) (20 ) Loans held for sale 1 (16 ) — — (15 ) Loans 3 — 13 (105 ) (89 ) Mortgage servicing rights (residential) (1) — (7 ) 1,561 — 1,554 Net derivative assets and liabilities: Interest rate contracts — — — 332 332 Commodity contracts — — — (20 ) (20 ) Equity contracts 3 (37 ) — 187 153 Foreign exchange contracts — — — 7 7 Credit contracts 9 (6 ) — (13 ) (10 ) Total derivative contracts 12 (43 ) — 493 462 Equity securities: Nonmarketable — (17 ) — (374 ) (391 ) Total equity securities — (17 ) — (374 ) (391 ) Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities).
Fair Value, Assets and Liabilities Measured on Recurring Basis, Quantitative Information about Valuation Techniques and Unobservable Inputs	Table 16.11 and Table 16.12 provide 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. 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. For information on how changes in significant unobservable inputs affect the fair values of Level 3 assets and liabilities, see Note 18 (Fair Values of Assets and Liabilities) in our 2018 Form 10-K. Table 16.11 : Valuation Techniques – Recurring Basis – Sept ember 30, 2019 ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique(s) Significant Unobservable Input Range of Inputs Weighted Average (1) September 30, 2019 Trading and available-for-sale debt securities: Securities of U.S. states and political subdivisions: Government, healthcare and other revenue bonds $ 315 Discounted cash flow Discount rate 1.5 - 5.8 % 2.6 38 Vendor priced Collateralized loan and other debt obligations (2) 232 Market comparable pricing Comparability adjustment (11.5 ) - 20.5 2.4 609 Vendor priced Corporate debt securities 220 Discounted cash flow Discount rate 2.0 14.9 8.7 55 Market comparable pricing Comparability adjustment (18.6 ) 12.1 (4.3 ) 125 Vendor priced Asset-backed securities: Diversified payment rights (3) 107 Discounted cash flow Discount rate 2.3 - 3.9 2.9 Other commercial and consumer 11 Vendor priced Mortgage loans held for sale (residential) 1,234 Discounted cash flow Default rate 0.0 - 16.7 % 0.8 Discount rate 3.0 - 5.6 4.2 Loss severity 0.0 - 44.4 22.5 Prepayment rate 5.5 - 14.6 7.8 15 Market comparable pricing Comparability adjustment (56.3 ) - (6.3 ) (37.2 ) Loans 185 (4) Discounted cash flow Discount rate 3.9 - 4.3 4.1 Prepayment rate 6.0 - 100.0 85.7 Loss severity 0.0 - 34.6 13.1 Mortgage servicing rights (residential) 11,072 Discounted cash flow Cost to service per loan (5) $ 63 - 455 102 Discount rate 5.9 - 12.5 % 6.9 Prepayment rate (6) 9.9 - 25.5 12.4 Net derivative assets and (liabilities): Interest rate contracts 111 Discounted cash flow Default rate 0.0 - 5.0 1.7 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 25.0 15.0 Interest rate contracts: derivative loan commitments 32 Discounted cash flow Fall-out factor 1.0 - 99.0 18.7 Initial-value servicing (31.5 ) - 197.0 bps 16.7 Equity contracts 143 Discounted cash flow Conversion factor (8.9 ) - 0.0 % (8.1 ) Weighted average life 0.8 - 3.3 yrs 1.7 (346 ) Option model Correlation factor (77.0 ) - 99.0 % 25.0 Volatility factor 6.5 - 128.6 23.7 Credit contracts 3 Market comparable pricing Comparability adjustment (39.5 ) - 11.3 (6.8 ) 35 Option model Credit spread 0.1 - 23.4 1.0 Loss severity 13.0 - 60.0 46.1 Nonmarketable equity securities 7,130 Market comparable pricing Comparability adjustment (21.0 ) - (5.4 ) (15.7 ) Insignificant Level 3 assets, net of liabilities (13 ) (7) Total level 3 assets, net of liabilities $ 21,313 (8) (1) Weighted averages are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. (2) Includes $609 million of collateralized debt obligations. (3) Securities backed by specified sources of current and future receivables generated from foreign originators. (4) Consists of reverse mortgage loans. (5) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $63 - $204 . (6) 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. (7) 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 mortgage-backed securities, other trading positions, other liabilities and certain net derivative assets and liabilities, such as commodity contracts and foreign exchange contracts. (8) Consists of total Level 3 assets of $23.4 billion and total Level 3 liabilities of $2.1 billion , before netting of derivative balances. Table 16.12 : Valuation Techniques – Recurring Basis – Dece mber 31, 2018 ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique(s) Significant Unobservable Input Range of Inputs Weighted Average (1) December 31, 2018 Trading and available-for-sale debt securities: Securities of U.S. states and political subdivisions: Government, healthcare and other revenue bonds $ 404 Discounted cash flow Discount rate 2.1 - 6.4 % 3.4 43 Vendor priced Collateralized loan and other debt obligations (2) 298 Market comparable pricing Comparability adjustment (13.5 ) - 22.1 3.2 739 Vendor priced Corporate debt securities 220 Discounted cash flow Discount rate 4.0 11.7 8.5 56 Market comparable pricing Comparability adjustment (11.3 ) 16.6 (1.4 ) 128 Vendor priced Asset-backed securities: Diversified payment rights (3) 171 Discounted cash flow Discount rate 3.4 - 6.2 4.4 Other commercial and consumer 198 (4) Discounted cash flow Discount rate 4.6 - 5.2 4.7 Weighted average life 1.1 - 1.5 yrs 1.1 20 Vendor priced Mortgage loans held for sale (residential) 982 Discounted cash flow Default rate 0.0 - 15.6 % 0.8 Discount rate 1.1 - 6.6 5.5 Loss severity — - 43.3 23.4 Prepayment rate 3.2 - 13.4 4.6 15 Market comparable pricing Comparability adjustment (56.3 ) - (6.3 ) (36.3 ) Loans 244 (5) Discounted cash flow Discount rate 3.4 - 6.4 4.2 Prepayment rate 2.9 - 100.0 87.2 Loss severity 0.0 - 34.8 10.2 Mortgage servicing rights (residential) 14,649 Discounted cash flow Cost to service per loan (6) $ 62 - 507 106 Discount rate 7.1 - 15.3 % 8.1 Prepayment rate (7) 9.0 - 23.5 9.9 Net derivative assets and (liabilities): Interest rate contracts (35 ) Discounted cash flow Default rate 0.0 - 5.0 2.0 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 25.0 13.8 Interest rate contracts: derivative loan commitments 60 Discounted cash flow Fall-out factor 1.0 - 99.0 19.4 Initial-value servicing (36.6 ) - 91.7 bps 18.5 Equity contracts 104 Discounted cash flow Conversion factor (9.3 ) - 0.0 % (7.8 ) Weighted average life 1.0 - 3.0 yrs 1.8 (121 ) Option model Correlation factor (77.0 ) - 99.0 % 21.6 Volatility factor 6.5 - 100.0 21.8 Credit contracts 3 Market comparable pricing Comparability adjustment (15.5 ) - 40.0 3.5 32 Option model Credit spread 0.9 - 21.5 1.3 Loss severity 13.0 - 60.0 45.2 Nonmarketable equity securities 5,468 Market comparable pricing Comparability adjustment (20.6 ) - (4.3 ) (15.8 ) Insignificant Level 3 assets, net of liabilities 93 (8) Total level 3 assets, net of liabilities $ 23,771 (9) (1) Weighted averages are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. (2) Includes $800 million of collateralized debt obligations. (3) Securities backed by specified sources of current and future receivables generated from foreign originators. (4) Predominantly consists of investments in asset-backed securities that are revolving in nature, for which the timing of advances and repayments of principal are uncertain. (5) Consists of reverse mortgage loans. (6) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $62 - $204 . (7) 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. (8) 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 mortgage-backed securities, other trading positions, other liabilities and certain net derivative assets and liabilities, such as commodity contracts and foreign exchange contracts. (9) Consists of total Level 3 assets of $25.3 billion and total Level 3 liabilities of $1.6 billion , before netting of derivative balances.
Fair Value, Assets Recorded at Fair Value on a Nonrecurring Basis	Table 16.1 3 provides the fair value hierarchy and fair value at the date of the nonrecurring fair value adjustment for all assets that were still held as of September 30, 2019 , and December 31, 2018 , and for which a nonrecurring fair value adjustment was recorded during the nine months ended September 30, 2019 , and year ended December 31, 2018 . Table 16.13 : Fair Value on a Nonrecurring Basis September 30, 2019 December 31, 2018 (in millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Mortgage loans held for sale (LOCOM) (1) $ — 2,129 3,535 5,664 — 1,213 1,233 2,446 Loans held for sale — 26 — 26 — 313 — 313 Loans: Commercial — 222 — 222 — 339 — 339 Consumer — 193 1 194 — 346 1 347 Total loans (2) — 415 1 416 — 685 1 686 Nonmarketable equity securities (3) — 1,235 102 1,337 — 774 157 931 Other assets (4) — 153 — 153 — 149 6 155 Total assets at fair value on a nonrecurring basis $ — 3,958 3,638 7,596 — 3,134 1,397 4,531 (1) Consists of commercial mortgages and residential real estate 1-4 family first mortgage loans. (2) Represents the carrying value of loans for which nonrecurring adjustments are based on the appraised value of the collateral. (3) Consists of certain nonmarketable equity securities that are measured at fair value on a nonrecurring basis, including observable price adjustments for nonmarketable equity securities carried under the measurement alternative. (4) Includes the fair value of foreclosed real estate, other collateral owned and operating lease assets.
Changes in Fair Value of Assets Recorded at Fair Value on Nonrecurring Basis	Table 16.14 presents the increase (decrease) in value of certain assets held at the end of the respective reporting periods presented for which a nonrecurring fair value adjustment was recognized during the periods presented. Table 16.14: Change in Value of Assets with Nonrecurring Fair Value Adjustment Nine months ended September 30, (in millions) 2019 2018 Mortgage loans held for sale (LOCOM) $ 14 7 Loans held for sale (2 ) (46 ) Loans: Commercial (181 ) (175 ) Consumer (168 ) (241 ) Total loans (1) (349 ) (416 ) Nonmarketable equity securities (2) 379 206 Other assets (3) (29 ) (36 ) Total $ 13 (285 ) (1) Represents write-downs of loans based on the appraised value of the collateral. (2) Includes impairment losses for nonmarketable equity securities accounted for under the equity method and measurement alternative. Also includes observable price adjustments for nonmarketable equity securities accounted for under the measurement alternative. (3)
Fair Value, Assets Recorded at Fair Value on a Nonrecurring Basis, Level 3 Valuation Techniques and Significant Unobservable Inputs	Table 16.15 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of substantially all of our Level 3 assets that are measured at fair value on a nonrecurring basis using an internal model. The table is limited to financial instruments that had nonrecurring fair value adjustments during the periods presented. We have excluded from the table valuation techniques and significant unobservable inputs for certain classes of Level 3 assets 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 that 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. Table 16.15: Valuation Techniques – Nonrecurring Basis ($ in millions) Fair Value Level 3 Valuation Technique(s) (1) Significant Unobservable Inputs (1) Range of inputs Weighted Average (2) September 30, 2019 Residential mortgage loans held for sale (LOCOM) $ 3,535 (3) Discounted cash flow Default rate (4) 0.1 — 53.9 % 3.2 % Discount rate 1.5 — 9.2 4.4 Loss severity 0.4 — 100.0 24.7 Prepayment rate (5) 5.2 — 100.0 22.4 Nonmarketable equity securities — Discounted cash flow Discount rate — — — — Insignificant level 3 assets 103 Total $ 3,638 December 31, 2018 Residential mortgage loans held for sale (LOCOM) $ 1,233 (3) Discounted cash flow Default rate (4) 0.2 — 2.3 % 1.4 % Discount rate 1.5 — 8.5 4.0 Loss severity 0.5 — 66.0 1.7 Prepayment rate (5) 3.5 — 100.0 46.5 Nonmarketable equity securities 7 Discounted cash flow Discount rate 10.5 — 10.5 10.5 Insignificant level 3 assets 157 Total $ 1,397 (1) Refer to the narrative following Table 16.1 2 for a definition of the valuation technique(s) and significant unobservable inputs. (2) For residential MLHFS, weighted averages are calculated using the outstanding unpaid principal balance of the loans. (3) Consists of approximately $1.3 billion and $1.2 billion of government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitizations at September 30, 2019 , and December 31, 2018 , respectively, and $2.2 billion and $27 million , respectively, of other mortgage loans that are not government insured/guaranteed. (4) Applies only to non-government insured/guaranteed loans. (5) Includes the impact on prepayment rate of expected defaults for government insured/guaranteed loans, which impact the frequency and timing of early resolution of loans.
Fair Value Option, Carrying Amount	Table 16.16 reflects differences between the fair value carrying amount of the assets for which we have elected the fair value option and the contractual aggregate unpaid principal amount at maturity. Table 16.16: Fair Value Option September 30, 2019 December 31, 2018 (in millions) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Mortgage loans held for sale: Total loans $ 16,945 16,560 385 11,771 11,573 198 Nonaccrual loans 133 155 (22 ) 127 158 (31 ) Loans 90 days or more past due and still accruing 10 12 (2 ) 7 9 (2 ) Loans held for sale: Total loans 1,501 1,541 (40 ) 1,469 1,536 (67 ) Nonaccrual loans 65 70 (5 ) 21 32 (11 ) Loans: Total loans 185 214 (29 ) 244 274 (30 ) Nonaccrual loans 139 168 (29 ) 179 208 (29 )
Fair Value Option, Changes in Fair Value Included in Earnings	The changes in fair value related to initial measurement and subsequent changes in fair value included in earnings for these assets measured at fair value are shown in Table 16.17 by income statement line item. Amounts recorded as interest income are excluded from Table 16.17 . Table 16.17: Fair Value Option – Changes in Fair Value Included in Earnings 2019 2018 (in millions) Mortgage banking noninterest income Net gains (losses) from trading activities Other noninterest income Mortgage banking noninterest income Net gains (losses) from trading activities Other noninterest income Quarter ended September 30, Mortgage loans held for sale $ 256 — — 183 — — Loans held for sale — 5 1 — 3 1 Loans — — — — — — Other interests held (1) — (1 ) — — — — Nine months ended September 30, Mortgage loans held for sale $ 849 — — 238 — — Loans held for sale — 15 2 — 18 1 Loans — — 1 — — (1 ) Other interests held (1) — (3 ) — — (2 ) — (1) Includes retained interests in securitizations.
Fair Value Option, Gains/Losses Attributable to Instrument Specific Credit Risk	Table 16.18 shows the estimated gains and losses from earnings attributable to instrument-specific credit risk related to assets accounted for under the fair value option. Table 16.18: Fair Value Option – Gains/Losses Attributable to Instrument-Specific Credit Risk Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Gains (losses) attributable to instrument-specific credit risk: Mortgage loans held for sale $ (13 ) (1 ) (1 ) (2 ) Loans held for sale 5 3 16 18 Total $ (8 ) 2 15 16
Fair Value, Estimates for Financial Instruments Excluding those Recorded at Fair Value on a Recurring Basis	Table 16.19 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 Table 16.2 in this Note. The carrying amounts in the following table are recorded on 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. Table 16.19: Fair Value Estimates for Financial Instruments Estimated fair value (in millions) Carrying amount Level 1 Level 2 Level 3 Total September 30, 2019 Financial assets Cash and due from banks (1) $ 22,401 22,401 — — 22,401 Interest-earning deposits with banks (1) 126,330 126,093 237 — 126,330 Federal funds sold and securities purchased under resale agreements (1) 103,051 — 103,051 — 103,051 Held-to-maturity debt securities 153,179 45,463 110,187 629 156,279 Mortgage loans held for sale 8,503 — 5,004 4,591 9,595 Loans held for sale 31 — 31 — 31 Loans, net (2) 925,750 — 52,666 882,595 935,261 Nonmarketable equity securities (cost method) 5,021 — — 5,055 5,055 Total financial assets $ 1,344,266 193,957 271,176 892,870 1,358,003 Financial liabilities Deposits (3) $ 135,422 — 102,538 33,225 135,763 Short-term borrowings 123,908 — 123,869 — 123,869 Long-term debt (4) 230,616 — 230,355 1,783 232,138 Total financial liabilities $ 489,946 — 456,762 35,008 491,770 December 31, 2018 Financial assets Cash and due from banks (1) $ 23,551 23,551 — — 23,551 Interest-earning deposits with banks (1) 149,736 149,542 194 — 149,736 Federal funds sold and securities purchased under resale agreements (1) 80,207 — 80,207 — 80,207 Held-to-maturity debt securities 144,788 44,339 97,275 501 142,115 Mortgage loans held for sale 3,355 — 2,129 1,233 3,362 Loans held for sale 572 — 572 — 572 Loans, net (2) 923,703 — 45,190 872,725 917,915 Nonmarketable equity securities (cost method) 5,643 — — 5,675 5,675 Total financial assets $ 1,331,555 217,432 225,567 880,134 1,323,133 Financial liabilities Deposits (3) $ 130,645 — 107,448 22,641 130,089 Short-term borrowings 105,787 — 105,789 — 105,789 Long-term debt (4) 229,008 — 225,904 2,230 228,134 Total financial liabilities $ 465,440 — 439,141 24,871 464,012 (1) Amounts consist of financial instruments for which carrying value approximates fair value. (2) Excludes lease financing with a carrying amount of $19.3 billion and $19.7 billion at September 30, 2019 , and December 31, 2018 , respectively. (3) Excludes deposit liabilities with no defined or contractual maturity of $1.2 trillion at both September 30, 2019 , and December 31, 2018 . (4) Excludes capital lease obligations under capital leases of $35 million and $36 million at September 30, 2019 , and December 31, 2018 , respectively.

Preferred Stock (Tables)

Preferred Stock (Tables)	9 Months Ended
	Sep. 30, 2019
Preferred Stock [Abstract]
Preferred Stock Shares	Our total authorized, issued and outstanding preferred stock is presented in the following two tables along with the Employee Stock Ownership Plan (ESOP) Cumulative Convertible Preferred Stock. Table 17.1: Preferred Stock Shares September 30, 2019 December 31, 2018 Liquidation preference per share Shares authorized and designated Liquidation preference per share Shares authorized and designated DEP Shares Dividend Equalization Preferred Shares (DEP) $ 10 97,000 $ 10 97,000 Series I Floating Class A Preferred Stock (1) 100,000 25,010 100,000 25,010 Series K Floating Non-Cumulative Perpetual Class A Preferred Stock (2)(3) 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 25,000 26,400 Series Q 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 69,000 25,000 69,000 Series R 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 34,500 25,000 34,500 Series S 5.90% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,000 25,000 80,000 Series T 6.00% Non-Cumulative Perpetual Class A Preferred Stock 25,000 32,200 25,000 32,200 Series U 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,000 25,000 80,000 Series V 6.00% Non-Cumulative Perpetual Class A Preferred Stock 25,000 40,000 25,000 40,000 Series W 5.70% Non-Cumulative Perpetual Class A Preferred Stock 25,000 40,000 25,000 40,000 Series X 5.50% Non-Cumulative Perpetual Class A Preferred Stock 25,000 46,000 25,000 46,000 Series Y 5.625% Non-Cumulative Perpetual Class A Preferred Stock 25,000 27,600 25,000 27,600 ESOP Cumulative Convertible Preferred Stock (4) — 1,071,418 — 1,406,460 Total 9,251,728 9,586,770 (1) Series I preferred stock issuance relates to trust preferred securities. See Note 10 (Securitizations and Variable Interest Entities) for additional information. This issuance has a floating interest rate that is the greater of three-month LIBOR plus 0.93% and 5.56975%. (2) Floating rate for Preferred Stock, Series K, is three-month LIBOR plus 3.77%. (3) In third quarter 2019, 1,550,000 shares of Preferred Stock, Series K, were redeemed. (4) See the ESOP Cumulative Convertible Preferred Stock section in this Note for additional information about the liquidation preference for the ESOP Cumulative Convertible Preferred Stock. Table 17.2: Preferred Stock – Shares Issued and Carrying Value September 30, 2019 December 31, 2018 (in millions, except shares) Shares issued and outstanding Liquidation preference value Carrying value Discount Shares issued and outstanding Liquidation preference value Carrying value Discount DEP Shares Dividend Equalization Preferred Shares (DEP) 96,546 $ — — — 96,546 $ — — — Series I (1)(2) Floating Class A Preferred Stock 25,010 2,501 2,501 — 25,010 2,501 2,501 — Series K (1)(3)(4) Floating Non-Cumulative Perpetual Class A Preferred Stock 1,802,000 1,802 1,546 256 3,352,000 3,352 2,876 476 Series L (1) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 3,967,995 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 — 25,000 625 625 — Series Q (1) 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 69,000 1,725 1,725 — 69,000 1,725 1,725 — Series R (1) 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 33,600 840 840 — 33,600 840 840 — Series S (1) 5.90% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 2,000 2,000 — 80,000 2,000 2,000 — Series T (1) 6.00% Non-Cumulative Perpetual Class A Preferred Stock 32,000 800 800 — 32,000 800 800 — Series U (1) 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 2,000 2,000 — 80,000 2,000 2,000 — Series V (1) 6.00% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series W (1) 5.70% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series X (1) 5.50% Non-Cumulative Perpetual Class A Preferred Stock 46,000 1,150 1,150 — 46,000 1,150 1,150 — Series Y (1) 5.625% Non-Cumulative Perpetual Class A Preferred Stock 27,600 690 690 — 27,600 690 690 — ESOP Cumulative Convertible Preferred Stock 1,071,418 1,072 1,072 — 1,406,460 1,407 1,407 — Total 7,492,169 $ 22,573 21,549 1,024 9,377,216 $ 24,458 23,214 1,244 (1) Preferred shares qualify as Tier 1 capital. (2) Floating rate for Preferred Stock, Series I, is the greater of three-month LIBOR plus 0.93% and 5.56975%. (3) Floating rate for Preferred Stock, Series K, is three-month LIBOR plus 3.77%. (4) In third quarter 2019, 1,550,000 shares of Preferred Stock, Series K, were redeemed.
ESOP Preferred Stock	Table 17.3: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Sep 30, Dec 31, Sep 30, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 254,945 336,945 255 337 7.00 % 8.00 % 2017 192,210 222,210 192 222 7.00 8.00 2016 197,450 233,835 198 234 9.30 10.30 2015 116,784 144,338 117 144 8.90 9.90 2014 136,151 174,151 136 174 8.70 9.70 2013 97,948 133,948 98 134 8.50 9.50 2012 49,134 77,634 49 78 10.00 11.00 2011 26,796 61,796 27 62 9.00 10.00 2010 (1) — 21,603 — 22 9.50 10.50 Total ESOP Preferred Stock (2) 1,071,418 1,406,460 $ 1,072 1,407 Unearned ESOP shares (3) $ (1,143 ) (1,502 ) (1) In April 2019, all of the 2010 ESOP Preferred Stock was converted into common stock. (2) At September 30, 2019, and December 31, 2018, additional paid-in capital included $71 million and $95 million , respectively, related to ESOP preferred stock. (3) 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.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue by Operating Segment	Table 18.1 presents our revenue by operating segment. The “Other” segment for each of the tables below includes the elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for WIM customers served through Community Banking distribution channels. For additional description of our operating segments, including additional financial information and the underlying management accounting process, see Note 22 (Operating Segments). We adopted ASU 2014-09 – Revenue from Contracts with Customers on a modified retrospective basis as of January 1, 2018. For details on the impact of the adoption of this ASU, see Note 1 (Summary of Significant Accounting Policies) in our 2018 Form 10-K. Table 18.1 : Revenue by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Net interest income (1) $ 6,769 7,338 4,382 4,726 989 1,102 (515 ) (594 ) 11,625 12,572 Noninterest income: Service charges on deposit accounts 742 700 477 505 4 3 (4 ) (4 ) 1,219 1,204 Trust and investment fees: Brokerage advisory, commissions and other fees 504 470 62 79 2,272 2,268 (492 ) (483 ) 2,346 2,334 Trust and investment management 203 231 121 112 615 727 (210 ) (235 ) 729 835 Investment banking (26 ) (17 ) 510 476 — 3 — — 484 462 Total trust and investment fees 681 684 693 667 2,887 2,998 (702 ) (718 ) 3,559 3,631 Card fees 936 925 90 92 2 1 (1 ) (1 ) 1,027 1,017 Other fees: Lending related charges and fees (1)(2) 58 67 290 303 2 1 (1 ) (1 ) 349 370 Cash network fees 118 121 — — — — — — 118 121 Commercial real estate brokerage commissions — — 170 129 — — — — 170 129 Wire transfer and other remittance fees 71 67 49 52 2 2 (1 ) (1 ) 121 120 All other fees(1) 69 89 31 20 1 1 (1 ) — 100 110 Total other fees 316 344 540 504 5 4 (3 ) (2 ) 858 850 Mortgage banking (1) 339 747 128 101 (3 ) (3 ) 2 1 466 846 Insurance (1) 11 21 74 76 17 19 (11 ) (12 ) 91 104 Net gains from trading activities (1) 19 10 247 135 10 13 — — 276 158 Net gains (losses) on debt securities (1) (1 ) 1 4 53 — 3 — — 3 57 Net gains (losses) from equity securities (1) 822 274 135 50 (1 ) 92 — — 956 416 Lease income (1) — — 402 453 — — — — 402 453 Other income of the segment (1) 605 772 (230 ) (58 ) 1,231 (6 ) (78 ) (75 ) 1,528 633 Total noninterest income 4,470 4,478 2,560 2,578 4,152 3,124 (797 ) (811 ) 10,385 9,369 Revenue $ 11,239 11,816 6,942 7,304 5,141 4,226 (1,312 ) (1,405 ) 22,010 21,941 Nine months ended Sep 30, Community Banking Wholesale Banking Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Net interest income (1) $ 21,083 21,879 13,451 13,951 3,127 3,325 (1,630 ) (1,804 ) 36,031 37,351 Noninterest income: Service charges on deposit accounts 2,056 1,971 1,462 1,569 12 12 (11 ) (12 ) 3,519 3,540 Trust and investment fees: Brokerage advisory, commissions and other fees 1,433 1,413 214 224 6,644 6,896 (1,434 ) (1,442 ) 6,857 7,091 Trust and investment management 612 684 352 335 1,978 2,201 (632 ) (700 ) 2,310 2,520 Investment banking (64 ) (27 ) 1,397 1,401 4 4 (4 ) — 1,333 1,378 Total trust and investment fees 1,981 2,070 1,963 1,960 8,626 9,101 (2,070 ) (2,142 ) 10,500 10,989 Card fees 2,723 2,650 271 275 5 4 (3 ) (3 ) 2,996 2,926 Other fees: Lending related charges and fees (1)(2) 188 212 856 914 6 5 (5 ) (5 ) 1,045 1,126 Cash network fees 344 364 — 3 — — — — 344 367 Commercial real estate brokerage commissions — — 356 323 — — — — 356 323 Wire transfer and other remittance fees 206 197 146 157 6 6 (3 ) (3 ) 355 357 All other fees (1) 245 246 83 75 1 2 (1 ) — 328 323 Total other fees 983 1,019 1,441 1,472 13 13 (9 ) (8 ) 2,428 2,496 Mortgage banking (1) 1,635 2,284 300 269 (9 ) (8 ) 6 5 1,932 2,550 Insurance (1) 33 65 227 233 51 55 (31 ) (33 ) 280 320 Net gains from trading activities (1) 13 33 806 514 42 45 1 — 862 592 Net gains on debt securities (1) 51 (1 ) 97 96 — 4 — — 148 99 Net gains (losses) from equity securities (1) 1,894 1,367 328 232 170 (105 ) — — 2,392 1,494 Lease income (1) — — 1,269 1,351 — — — — 1,269 1,351 Other income of the segment (1) 2,342 2,115 (497 ) (142 ) 1,233 (27 ) (232 ) (226 ) 2,846 1,720 Total noninterest income 13,711 13,573 7,667 7,829 10,143 9,094 (2,349 ) (2,419 ) 29,172 28,077 Revenue $ 34,794 35,452 21,118 21,780 13,270 12,419 (3,979 ) (4,223 ) 65,203 65,428 (1) Most of our revenue is not within the scope of Accounting Standards Update (ASU) 2014-09 – Revenue from Contracts with Customers , and additional details are included in other footnotes to our financial statements. The scope explicitly excludes net interest income as well as many other revenues for financial assets and liabilities, including loans, leases, securities, and derivatives. (2) Represents combined amount of previously reported “Charges and fees on loans” and “Letters of credit fees.”
Disaggregation of Revenue by Operating Segment	Table 18.4 presents our trust and investment management fees by operating segment. Table 18.4 : Trust and Investment Management Fees by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Investment management fees $ — — — — 510 520 — — 510 520 Trust fees 203 229 85 82 106 181 (210 ) (235 ) 184 257 Other revenue — 2 36 30 (1 ) 26 — — 35 58 Trust and investment management fees $ 203 231 121 112 615 727 (210 ) (235 ) 729 835 Nine months ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Investment management fees $ — — — — 1,488 1,585 — — 1,488 1,585 Trust fees 612 682 250 250 449 554 (632 ) (700 ) 679 786 Other revenue — 2 102 85 41 62 — — 143 149 Trust and investment management fees $ 612 684 352 335 1,978 2,201 (632 ) (700 ) 2,310 2,520 Table 18.2 presents our service charges on deposit accounts by operating segment. Table 18.2 : Service Charges on Deposit Accounts by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Overdraft fees $ 533 484 2 1 — — — — 535 485 Account charges 209 216 475 504 4 3 (4 ) (4 ) 684 719 Service charges on deposit accounts $ 742 700 477 505 4 3 (4 ) (4 ) 1,219 1,204 Nine months ended Sep 30, Community Wholesale Wealth and Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Overdraft fees $ 1,446 1,312 4 4 1 1 — — 1,451 1,317 Account charges 610 659 1,458 1,565 11 11 (11 ) (12 ) 2,068 2,223 Service charges on deposit accounts $ 2,056 1,971 1,462 1,569 12 12 (11 ) (12 ) 3,519 3,540 Table 18.3 presents our brokerage advisory, commissions and other fees by operating segment. Table 18.3 : Brokerage Advisory, Commissions and Other Fees by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Asset-based revenue (1) $ 381 371 — 1 1,741 1,720 (382 ) (372 ) 1,740 1,720 Transactional revenue 105 82 (8 ) 19 376 388 (92 ) (94 ) 381 395 Other revenue 18 17 70 59 155 160 (18 ) (17 ) 225 219 Brokerage advisory, commissions and other fees $ 504 470 62 79 2,272 2,268 (492 ) (483 ) 2,346 2,334 Nine months ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Asset-based revenue (1) $ 1,093 1,107 — 1 5,019 5,185 (1,094 ) (1,108 ) 5,018 5,185 Transactional revenue 288 258 18 47 1,153 1,227 (288 ) (286 ) 1,171 1,246 Other revenue 52 48 196 176 472 484 (52 ) (48 ) 668 660 Brokerage advisory, commissions and other fees $ 1,433 1,413 214 224 6,644 6,896 (1,434 ) (1,442 ) 6,857 7,091 (1) We earned trailing commissions of $289 million and $858 million for the third quarter and first nine months of 2019 , respectively, and $323 million and $975 million for the third quarter and first nine months of 2018 , respectively. Table 18.5 presents our card fees by operating segment. Table 18.5 : Card Fees by Operating Segment Quarter ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Credit card interchange and network revenues (1) $ 202 218 90 92 2 1 (1 ) (1 ) 293 310 Debit card interchange and network revenues 548 523 — — — — — — 548 523 Late fees, cash advance fees, balance transfer fees, and annual fees 186 184 — — — — — — 186 184 Card fees (1) $ 936 925 90 92 2 1 (1 ) (1 ) 1,027 1,017 Nine months ended Sep 30, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Credit card interchange and network revenues (1) $ 600 600 271 275 5 4 (3 ) (3 ) 873 876 Debit card interchange and network revenues 1,601 1,527 — — — — — — 1,601 1,527 Late fees, cash advance fees, balance transfer fees, and annual fees 522 523 — — — — — — 522 523 Card fees (1) $ 2,723 2,650 271 275 5 4 (3 ) (3 ) 2,996 2,926 (1) The cost of credit card rewards and rebates of $383 million and $1.1 billion for the third quarter and first nine months of 2019 , respectively, and $335 million and $1.0 billion for the third quarter and first nine months of 2018 , respectively, are presented net against the related revenues.

Employee Benefits (Tables)

Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2019
Defined Benefit Plan [Abstract]
Net Periodic Benefit Cost	Table 19.1 presents the components of net periodic benefit cost. Table 19.1: Net Periodic Benefit Cost 2019 2018 Pension benefits Pension benefits (in millions) Qualified Non-qualified Other benefits Qualified Non-qualified Other benefits Quarter ended September 30, Service cost $ 3 — — 2 — — Interest cost (1) 105 5 6 97 5 6 Expected return on plan assets (1) (142 ) — (7 ) (160 ) — (8 ) Amortization of net actuarial loss (gain) (1) 37 3 (5 ) 32 4 (4 ) Amortization of prior service credit (1) — — (2 ) — — (3 ) Settlement loss (1) — — — — — — Net periodic benefit cost (income) $ 3 8 (8 ) (29 ) 9 (9 ) Nine months ended September 30, Service cost $ 9 — — 5 — — Interest cost (1) 314 16 17 293 16 16 Expected return on plan assets (1) (426 ) — (21 ) (481 ) — (23 ) Amortization of net actuarial loss (gain) (1) 111 8 (13 ) 98 10 (13 ) Amortization of prior service credit (1) — — (7 ) — — (8 ) Settlement loss (1) — 2 — — 3 — Net periodic benefit cost (income) $ 8 26 (24 ) (85 ) 29 (28 ) (1) Balances are reported in other noninterest expense on the consolidated statement of income.

Earnings and Divdends Per Commo

Earnings and Divdends Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Common Share Calculations	Table 20.1 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 (Summary of Significant Accounting Policies) for discussion on share repurchases. Table 20.1: Earnings Per Common Share Calculations Quarter ended September 30, Nine months ended September 30, (in millions, except per share amounts) 2019 2018 2019 2018 Wells Fargo net income $ 4,610 6,007 $ 16,676 16,329 Less: Preferred stock dividends and other (1) 573 554 1,284 1,351 Wells Fargo net income applicable to common stock (numerator) $ 4,037 5,453 $ 15,392 14,978 Earnings per common share Average common shares outstanding (denominator) 4,358.5 4,784.0 4,459.1 4,844.8 Per share $ 0.93 1.14 $ 3.45 3.09 Diluted earnings per common share Average common shares outstanding 4,358.5 4,784.0 4,459.1 4,844.8 Add: Stock options (2) 0.1 7.5 1.0 8.5 Restricted share rights (2) 31.0 26.5 29.4 25.9 Warrants (2) — 5.2 — 5.8 Diluted average common shares outstanding (denominator) 4,389.6 4,823.2 4,489.5 4,885.0 Per share $ 0.92 1.13 $ 3.43 3.07 (1) The quarter and nine months ended September 30, 2019 , and September 30, 2018 , includes $220 million and $155 million , respectively, as a result of eliminating the discount on our Series K and Series J Preferred Stock. The Series K Preferred Stock was partially redeemed on September 16, 2019, and the Series J Preferred Stock was redeemed on September 17, 2018. (2) Calculated using the treasury stock method.
Outstanding Anti-Dilutive Securities	Table 20.2 presents the outstanding Series L convertible preferred stock and options to purchase shares of common stock that were anti-dilutive and therefore not included in the calculation of diluted earnings per common share. Table 20.2: Outstanding Anti-Dilutive Securities Weighted-average shares Quarter ended September 30, Nine months ended September 30, (in millions) 2019 2018 2019 2018 Series L Convertible Preferred Stock (1) 25.3 25.3 25.3 25.3 Stock options (2) — — — 0.4 (1) Calculated using the if-converted method. (2) Calculated using the treasury stock method.
Dividends declared per common share	Table 20.3 presents dividends declared per common share. Table 20.3: Dividends Declared Per Common Share Quarter ended September 30, Nine months ended September 30, 2019 2018 2019 2018 Per common share $ 0.51 0.43 $ 1.41 1.21

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2019
Cumulative Other Comprehensive Income Balances [Abstract]
Summary of Other Comprehensive Income	Table 21.1 provides the components of OCI, reclassifications to net income by income statement line item, and the related tax effects. Table 21.1: Summary of Other Comprehensive Income Quarter ended September 30, Nine months ended September 30, 2019 2018 2019 2018 (in millions) Before tax Tax effect Net of tax Before tax Tax effect Net of tax Before tax Tax effect Net of tax Before tax Tax effect Net of tax Debt securities: Net unrealized gains (losses) arising during the period $ 652 (159 ) 493 (1,468 ) 360 (1,108 ) 5,192 (1,276 ) 3,916 (5,528 ) 1,360 (4,168 ) Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 77 (19 ) 58 109 (27 ) 82 183 (45 ) 138 268 (66 ) 202 Net gains on debt securities (3 ) — (3 ) (57 ) 15 (42 ) (148 ) 36 (112 ) (99 ) 25 (74 ) Other noninterest income 2 (1 ) 1 (1 ) — (1 ) (1 ) — (1 ) (1 ) — (1 ) Subtotal reclassifications to net income 76 (20 ) 56 51 (12 ) 39 34 (9 ) 25 168 (41 ) 127 Net change 728 (179 ) 549 (1,417 ) 348 (1,069 ) 5,226 (1,285 ) 3,941 (5,360 ) 1,319 (4,041 ) Derivative and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) 28 (7 ) 21 (21 ) 5 (16 ) 58 (14 ) 44 (147 ) 36 (111 ) Cash Flow Hedges: Net unrealized losses arising during the period on cash flow hedges (18 ) 4 (14 ) (3 ) — (3 ) (26 ) 6 (20 ) (269 ) 66 (203 ) Reclassification of net losses to net income on cash flow hedges: Interest income on loans 73 (19 ) 54 78 (19 ) 59 228 (57 ) 171 215 (53 ) 162 Interest expense on long-term debt 2 — 2 1 — 1 5 (1 ) 4 1 — 1 Subtotal reclassifications to net income 75 (19 ) 56 79 (19 ) 60 233 (58 ) 175 216 (53 ) 163 Net change 85 (22 ) 63 55 (14 ) 41 265 (66 ) 199 (200 ) 49 (151 ) Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period — — — — — — (4 ) 1 (3 ) 6 (2 ) 4 Reclassification of amounts to non interest expense (3): Amortization of net actuarial loss 35 (9 ) 26 32 (8 ) 24 106 (26 ) 80 95 (23 ) 72 Settlements and other (2 ) 1 (1 ) (3 ) 2 (1 ) (5 ) 3 (2 ) (5 ) 3 (2 ) Subtotal reclassifications to non interest expense 33 (8 ) 25 29 (6 ) 23 101 (23 ) 78 90 (20 ) 70 Net change 33 (8 ) 25 29 (6 ) 23 97 (22 ) 75 96 (22 ) 74 Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period (53 ) 1 (52 ) (9 ) 2 (7 ) 3 (2 ) 1 (94 ) — (94 ) Net change (53 ) 1 (52 ) (9 ) 2 (7 ) 3 (2 ) 1 (94 ) — (94 ) Other comprehensive income (loss) $ 793 (208 ) 585 (1,342 ) 330 (1,012 ) 5,591 (1,375 ) 4,216 (5,558 ) 1,346 (4,212 ) Less: Other comprehensive loss from noncontrolling interests, net of tax — — — (1 ) Wells Fargo other comprehensive income (loss), net of tax $ 585 (1,012 ) 4,216 (4,211 ) (1) Represents net unrealized gains and losses amortized over the remaining lives of securities that were transferred from the available-for-sale portfolio to the held-to-maturity portfolio. (2) Represents changes in fair value of cross-currency swaps attributable to changes in cross-currency basis spreads, which are excluded from the assessment of effectiveness recorded in other comprehensive income. (3) These items are included in the computation of net periodic benefit cost (see Note 19 (Employee Benefits) for more information).
Cumulative OCI Balances	Table 21.2: Cumulative OCI Balances (in millions) Debt securities Derivative and hedging activities Defined benefit plans adjustments Foreign currency translation adjustments Cumulative other compre- hensive income Quarter ended September 30, 2019 Balance, beginning of period $ 751 (549 ) (2,246 ) (180 ) (2,224 ) Net unrealized gains (losses) arising during the period 493 7 — (52 ) 448 Amounts reclassified from accumulated other comprehensive income 56 56 25 — 137 Net change 549 63 25 (52 ) 585 Less: Other comprehensive income from noncontrolling interests — — — — — Balance, end of period $ 1,300 (486 ) (2,221 ) (232 ) (1,639 ) Quarter ended September 30, 2018 Balance, beginning of period $ (2,919 ) (610 ) (1,757 ) (175 ) (5,461 ) Reclassification of certain tax effects to retained earnings (1) 31 (87 ) (353 ) 9 (400 ) Net unrealized losses arising during the period (1,108 ) (19 ) — (7 ) (1,134 ) Amounts reclassified from accumulated other comprehensive income 39 60 23 — 122 Net change (1,038 ) (46 ) (330 ) 2 (1,412 ) Less: Other comprehensive income from noncontrolling interests — — — — — Balance, end of period $ (3,957 ) (656 ) (2,087 ) (173 ) (6,873 ) Nine months ended September 30, 2019 Balance, beginning of period $ (3,122 ) (685 ) (2,296 ) (233 ) (6,336 ) Transition adjustment (2) 481 — — — 481 Balance, January 1, 2019 (2,641 ) (685 ) (2,296 ) (233 ) (5,855 ) Net unrealized gains (losses) arising during the period 3,916 24 (3 ) 1 3,938 Amounts reclassified from accumulated other comprehensive income 25 175 78 — 278 Net change 3,941 199 75 1 4,216 Less: Other comprehensive income from noncontrolling interests — — — — — Balance, end of period $ 1,300 (486 ) (2,221 ) (232 ) (1,639 ) Nine months ended September 30, 2018 Balance, beginning of period $ 171 (418 ) (1,808 ) (89 ) (2,144 ) Transition adjustment (3) (118 ) — — — (118 ) Balance, January 1, 2018 53 (418 ) (1,808 ) (89 ) (2,262 ) Reclassification of certain tax effects to retained earnings (1) 31 (87 ) (353 ) 9 (400 ) Net unrealized gains (losses) arising during the period (4,168 ) (314 ) 4 (94 ) (4,572 ) Amounts reclassified from accumulated other comprehensive income 127 163 70 — 360 Net change (4,010 ) (238 ) (279 ) (85 ) (4,612 ) Less: Other comprehensive loss from noncontrolling interests — — — (1 ) (1 ) Balance, end of period $ (3,957 ) (656 ) (2,087 ) (173 ) (6,873 ) (1) Represents the reclassification from other comprehensive income to retained earnings as a result of the adoption of ASU 2018-02 - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in the third quarter of 2018. (2) The transition adjustment relates to the adoption of ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . See Note 1 (Summary of Significant Accounting Policies) for more information. (3) The transition adjustment relates to the adoption of ASU 2016-01 – Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities

Operating Segments (Tables)

Operating Segments (Tables)	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Operating Segments	Table 22.1 presents our results by operating segment. Table 22.1: Operating Segments Community Wholesale Banking Wealth and Investment Management Other (1) Consolidated Company (income/expense in millions, average balances in billions) 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 Quarter ended Sep 30, Net interest income (2) $ 6,769 7,338 4,382 4,726 989 1,102 (515 ) (594 ) 11,625 12,572 Provision (reversal of provision) for credit losses 608 547 92 26 3 6 (8 ) 1 695 580 Noninterest income 4,470 4,478 2,560 2,578 4,152 3,124 (797 ) (811 ) 10,385 9,369 Noninterest expense 8,766 7,467 3,889 3,935 3,431 3,243 (887 ) (882 ) 15,199 13,763 Income (loss) before income tax expense (benefit) 1,865 3,802 2,961 3,343 1,707 977 (417 ) (524 ) 6,116 7,598 Income tax expense (benefit) 667 925 315 475 426 244 (104 ) (132 ) 1,304 1,512 Net income (loss) before noncontrolling interests 1,198 2,877 2,646 2,868 1,281 733 (313 ) (392 ) 4,812 6,086 Less: Net income from noncontrolling interests 199 61 2 17 1 1 — — 202 79 Net income (loss) (3) $ 999 2,816 2,644 2,851 1,280 732 (313 ) (392 ) 4,610 6,007 Average loans $ 459.0 460.9 474.3 462.8 75.9 74.6 (59.4 ) (58.8 ) 949.8 939.5 Average assets 1,033.9 1,024.9 869.2 827.2 84.7 83.8 (60.4 ) (59.6 ) 1,927.4 1,876.3 Average deposits 789.7 760.9 422.0 413.6 142.4 159.8 (62.7 ) (67.9 ) 1,291.4 1,266.4 Nine months ended Sep 30, Net interest income (2) $ 21,083 21,879 13,451 13,951 3,127 3,325 (1,630 ) (1,804 ) 36,031 37,351 Provision (reversal of provision) for credit losses 1,797 1,249 254 (30 ) 6 (2 ) (14 ) 6 2,043 1,223 Noninterest income 13,711 13,573 7,667 7,829 10,143 9,094 (2,349 ) (2,419 ) 29,172 28,077 Noninterest expense 23,667 23,459 11,609 12,132 9,980 9,894 (2,692 ) (2,698 ) 42,564 42,787 Income (loss) before income tax expense (benefit) 9,330 10,744 9,255 9,678 3,284 2,527 (1,273 ) (1,531 ) 20,596 21,418 Income tax expense (benefit) 1,929 3,147 1,049 1,302 819 630 (318 ) (383 ) 3,479 4,696 Net income (loss) before noncontrolling interests 7,401 7,597 8,206 8,376 2,465 1,897 (955 ) (1,148 ) 17,117 16,722 Less: Net income from noncontrolling interests 432 372 3 15 6 6 — — 441 393 Net income (loss) (3) $ 6,969 7,225 8,203 8,361 2,459 1,891 (955 ) (1,148 ) 16,676 16,329 Average loans $ 458.3 465.0 474.9 464.2 75.1 74.4 (59.2 ) (58.8 ) 949.1 944.8 Average assets 1,024.8 1,040.2 855.4 827.6 83.9 84.0 (60.2 ) (59.6 ) 1,903.9 1,892.2 Average deposits 777.7 756.4 414.1 424.4 146.3 168.2 (63.9 ) (70.8 ) 1,274.2 1,278.2 (1) Includes the elimination of certain items that are included in more than one business segment, substantially all of which represents products and services for Wealth and Investment Management customers served through Community Banking distribution channels. (2) 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 as well as interest credits for any funding of a segment available to be provided to other segments. The cost of liabilities includes actual interest expense on segment liabilities as well as funding charges for any funding provided from other segments. (3) Represents segment net income (loss) for Community Banking; Wholesale Banking; and Wealth and Investment Management segments and Wells Fargo net income for the consolidated company.

Regulatory and Agency Capital_2

Regulatory and Agency Capital Requirements (Tables)	9 Months Ended
	Sep. 30, 2019
Banking and Thrift [Abstract]
Regulatory Capital Information	Table 23.1 presents regulatory capital information for Wells Fargo & Company and the Bank using Basel III, which increased minimum required capital ratios, and introduced a minimum Common Equity Tier 1 (CET1) ratio. We must report the lower of our CET1, tier 1 and total capital ratios calculated under the Standardized Approach and under the Advanced Approach in the assessment of our capital adequacy. The Standardized Approach applies assigned risk weights to broad risk categories, while the calculation of risk-weighted assets (RWAs) under the Advanced Approach differs by requiring applicable banks to utilize a risk-sensitive methodology, which relies upon the use of internal credit models, and includes an operational risk component. The Basel III capital rules are being phased-in effective January 1, 2014, through the end of 2021. Beginning January 1, 2018, the requirements for calculating CET1 and tier 1 capital, along with RWAs, became fully phased-in. Accordingly, the information presented reflects fully phased-in CET1 capital, tier 1 capital, and RWAs, but reflects total capital still in accordance with Transition Requirements. The Bank is an approved seller/servicer of mortgage loans 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, 2019 , 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. Table 23.1: Regulatory Capital Information Wells Fargo & Company Wells Fargo Bank, N.A. September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 (in millions, except ratios) Advanced Approach Standardized Approach Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Regulatory capital: Common equity tier 1 $ 144,739 144,739 146,363 146,363 145,265 145,265 142,685 142,685 Tier 1 164,872 164,872 167,866 167,866 145,265 145,265 142,685 142,685 Total 194,526 202,480 198,798 207,041 157,212 164,736 155,558 163,380 Assets: Risk-weighted assets $ 1,218,519 1,246,238 1,177,350 1,247,210 1,096,348 1,149,329 1,058,653 1,154,182 Adjusted average assets (1) 1,898,590 1,898,590 1,850,299 1,850,299 1,674,518 1,674,518 1,652,009 1,652,009 Regulatory capital ratios: Common equity tier 1 capital 11.88 % 11.61 * 12.43 11.74 * 13.25 12.64 * 13.48 12.36 * Tier 1 capital 13.53 13.23 * 14.26 13.46 * 13.25 12.64 * 13.48 12.36 * Total capital 15.96 * 16.25 16.89 16.60 * 14.34 14.33 * 14.69 14.16 * Tier 1 leverage (1) 8.68 8.68 9.07 9.07 8.68 8.68 8.64 8.64 Wells Fargo & Company Wells Fargo Bank, N.A. September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Supplementary leverage: (2) Total leverage exposure $ 2,240,106 2,174,564 1,993,756 1,957,276 Supplementary leverage ratio 7.36 % 7.72 7.29 7.29 *Denotes the lowest capital ratio as determined under the Advanced and Standardized Approaches. (1) The leverage ratio consists of Tier 1 capital divided by total average assets, excluding goodwill and certain other items. (2) The supplementary leverage ratio consists of Tier 1 capital divided by total leverage exposure. Total leverage exposure consists of total average assets, less goodwill and other permitted Tier 1 capital deductions (net of deferred tax liabilities), plus certain off-balance sheet exposures.
Minimum Required Regulatory Capital Ratios (Transition Requirements)	Table 23.2 presents the minimum required regulatory capital ratios under Transition Requirements to which the Company and the Bank were subject as of September 30, 2019 , and December 31, 2018 . Table 23.2: Minimum Required Regulatory Capital Ratios – Transition Requirements (1) Wells Fargo & Company Wells Fargo Bank, N.A. September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Regulatory capital ratios: Common equity tier 1 capital 9.000 % 7.875 7.000 6.375 Tier 1 capital 10.500 9.375 8.500 7.875 Total capital 12.500 11.375 10.500 9.875 Tier 1 leverage 4.000 4.000 4.000 4.000 Supplementary leverage 5.000 5.000 6.000 6.000 (1) At September 30, 2019 , under transition requirements, the CET1, tier 1 and total capital minimum ratio requirements for Wells Fargo & Company include a capital conservation buffer of 2.500% and a global systemically important bank (G-SIB) surcharge of 2.000% . Only the 2.500% capital conservation buffer applies to the Bank at September 30, 2019 .

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Supplemental cash flow information - Noncash activities
Trading debt securities retained from securitization of MLHFS	$ 31,517	$ 28,761
Transfers from loans to MLHFS	5,409	4,456
Transfers from loans to LHFS	117	2,542
Transfers from available-for-sale debt securities to held-to-maturity debt securities	13,833	13,372
Operating lease ROU assets acquired with operating lease liabilities	5,644	$ 0
Summary Of Significant Accounting Policies Textuals [Abstract]
Operating lease ROU assets (lessee)	4,856			$ 0
Lease liabilities	$ 5,383
Direct financing lease, risk strategy, residual asset	Our allowance for loan losses for financing leases considers both the collectability of the lease payments receivable as well as the estimated residual value of the leased asset. We typically purchase residual value insurance on our financing leases so that our risk of loss at lease termination will be less than 10% of the initial value of the lease. Our risk to declines in residual values is further mitigated by the diversity of leased assets in our lease portfolio. In addition, we have several channels for re-leasing or marketing those assets.
Operating lease ROU assets acquired with operating lease liabilities	$ 744
Private Forward Repurchase Transaction [Member]
Summary Of Significant Accounting Policies Textuals [Abstract]
Private forward repurchase contract	$ 0
Accounting Standards Update 2017-08 [Member]
Summary Of Significant Accounting Policies Textuals [Abstract]
Cumulative effect of new accounting principle			$ (111)
Accounting Standards Update 2017-08 [Member] | Cumulative other comprehensive income [Member]
Summary Of Significant Accounting Policies Textuals [Abstract]
Cumulative effect of new accounting principle				$ 481
Accounting Standards Update 2017-08 [Member] | Retained earnings [Member]
Summary Of Significant Accounting Policies Textuals [Abstract]
Cumulative effect of new accounting principle			(592)
Accounting Standards Update 2016-02 [Member]
Summary Of Significant Accounting Policies Textuals [Abstract]
Operating lease ROU assets (lessee)			4,900
Lease liabilities			5,600
Accounting Standards Update 2016-02 [Member] | Retained earnings [Member]
Summary Of Significant Accounting Policies Textuals [Abstract]
Cumulative effect of new accounting principle			$ 100

Business Combinations (Details)

Business Combinations (Details) $ in Millions	Oct. 01, 2019USD ($)	Jul. 01, 2019USD ($)	Sep. 30, 2019USD ($)business
Business Acquisitions and DIvestitures [Line Items]
Business acquisition, number completed during period | business			0
Pending Acquisition [Member]
Business Acquisitions and DIvestitures [Line Items]
Business acquisition, number completed during period | business			0
Institutional Retirement & Trust Business (IRT) [Member]
Business Acquisitions and DIvestitures [Line Items]
Disposal Date		Jul. 1, 2019
Gain (Loss) on Disposition of Business		$ 1,100
Maximum Duration Of Contract To Administer Client Assets		24 months
Amount of client assets transitioned to the buyer			$ 0
Carrying Amount of Assets Under Management			21,000
Carrying Amount Of Assets Under Administration			$ 912,000
Subsequent Event [Member] | Eastdil Secured [Member]
Business Acquisitions and DIvestitures [Line Items]
Disposal Date	Oct. 1, 2019
Gain (Loss) on Disposition of Business	$ 360

Cash, Loan and Dividend Restr_3

Cash, Loan and Dividend Restrictions (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 01, 2019	Oct. 22, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Cash, Loan and Dividend Restrictions [Line Items]
Average Cash Reserve Deposit Required And Made Federal Reserve Banks					$ 11,230		$ 12,428
Common Stock, Dividends, Per Share, Declared			$ 0.51	$ 0.43	$ 1.41	$ 1.21
Reserve Balance for Non-US Central Banks [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Restricted Cash Equivalents			$ 247		$ 247		517
Segregated for benefit brokerage customers under federal and other brokerage regulations [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Restricted Cash Equivalents			625		625		1,135
Related to consolidated variable interest entities (VIEs) that can only be used to settle liabilities of VIEs [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Restricted Cash Equivalents			128		128		$ 147
Bank Subsidiaries [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval			6,000		6,000
Nonbank Subsidiaries [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval			$ 25,700		$ 25,700
Subsequent Event [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Common Stock, Dividends, Per Share, Declared		$ 0.51
Dividends Payable, Date Declared		Oct. 22, 2019
Dividends Payable, Date to be Paid	Dec. 1, 2019

Trading Activities, Assets and

Trading Activities, Assets and Liabilities (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Trading Assets and Liabilities [Line Items]
Trading debt securities		$ 79,113	$ 69,989
Trading equity securities		24,436	19,449
Derivative assets		45,588	34,560
Net amounts in consolidated balance sheet, assets		14,680	10,770
Total trading assets		118,562	100,316
Gross trading derivative liabilities		42,986	32,047
Net amounts in consolidated balance sheet, liabilities		9,948	8,499
Total trading liabilities		26,890	27,259
Loans and finance receivables, excluding mortgage receivable [Member]
Trading Assets and Liabilities [Line Items]
Loans held for sale	[1]	1,532	2,041
Held for trading [Member]
Trading Assets and Liabilities [Line Items]
Derivative assets		39,926	29,216
Netting, derivative assets (1)		(26,414)	(19,807)
Net amounts in consolidated balance sheet, assets		13,512	9,409
Short sales		18,290	19,720
Gross trading derivative liabilities		38,308	28,717
Netting, derivative liabilities (1)		(29,708)	(21,178)
Net amounts in consolidated balance sheet, liabilities		8,600	7,539
Held for trading [Member] | Loans and finance receivables, excluding mortgage receivable [Member]
Trading Assets and Liabilities [Line Items]
Loans held for sale		$ 1,501	$ 1,469
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Trading Activities, Net Interes

Trading Activities, Net Interest Income and Net Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Debt Securities, interest income	$ 790	$ 723	$ 2,323	$ 2,043
Equity Securities, interest income	247	280	693	732
Loans held for sale, interest income	20	35	64	107
Total interest income	16,499	16,364	50,488	47,726
Total interest expense	129	157	392	429
Net interest income	11,625	12,572	36,031	37,351
Debt securities, net gains (losses)	451	(369)	1,540	(1,008)
Equity securities, net gains (losses)	(242)	1,129	3,061	25
Loans held for sale, net gain (losses)	5	3	15	18
Derivatives (3)	62	(605)	(3,754)	1,557
Net gains from trading activities	276	158	862	592
Total trading-related net interest and noninterest income	1,114	922	3,271	2,696
Held for trading [Member]
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Equity Securities, interest income	157	178	415	447
Loans held for sale, interest income	20	20	63	43
Total interest income	967	921	2,801	2,533
Net interest income	$ 838	$ 764	$ 2,409	$ 2,104

AFS and HTM Debt Securities, Ma

AFS and HTM Debt Securities, Major Categories (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Available-for-sale debt securities:
Amortized cost	$ 268,095	$ 272,471
Gross unrealized gains	3,567	1,659
Gross unrealized losses	(426)	(4,218)
Available-for-sale, at fair value	271,236	269,912
Held-to-maturity debt securities:
Held-to-maturity securities, Amortized Cost	153,179	144,788
Gross unrealized gains	3,118	146
Gross unrealized losses	(18)	(2,819)
Held-to-maturity, at fair value	156,279	142,115
Total AFS and HTM Debt securities:
Amortized cost	421,274	417,259
Gross unrealized gains	6,685	1,805
Gross unrealized losses	(444)	(7,037)
Fair value	427,515	412,027
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Amortized cost	16,569	13,451
Gross unrealized gains	2	3
Gross unrealized losses	(22)	(106)
Available-for-sale, at fair value	16,549	13,348
Held-to-maturity debt securities:
Held-to-maturity securities, Amortized Cost	44,774	44,751
Gross unrealized gains	690	4
Gross unrealized losses	(1)	(415)
Held-to-maturity, at fair value	45,463	44,340
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Amortized cost	39,792	48,994
Gross unrealized gains	785	716
Gross unrealized losses	(74)	(446)
Available-for-sale, at fair value	40,503	49,264
Held-to-maturity debt securities:
Held-to-maturity securities, Amortized Cost	12,719	6,286
Gross unrealized gains	308	30
Gross unrealized losses	(5)	(116)
Held-to-maturity, at fair value	13,022	6,200
Securities of U.S. states and political subdivisions [Member] | Nontaxable Preferred Debt Securities [Member]
Available-for-sale debt securities:
Amortized cost	5,800	6,300
Available-for-sale, at fair value	5,800	6,300
Mortgage-backed securities [Member]
Available-for-sale debt securities:
Amortized cost	170,411	162,819
Gross unrealized gains	2,370	551
Gross unrealized losses	(167)	(3,167)
Available-for-sale, at fair value	172,614	160,203
Federal agencies [Member]
Available-for-sale debt securities:
Amortized cost	165,382	155,974
Gross unrealized gains	2,315	369
Gross unrealized losses	(162)	(3,140)
Available-for-sale, at fair value	167,535	153,203
Held-to-maturity debt securities:
Held-to-maturity securities, Amortized Cost	95,637	93,685
Gross unrealized gains	2,120	112
Gross unrealized losses	(12)	(2,288)
Held-to-maturity, at fair value	97,745	91,509
Residential [Member]
Available-for-sale debt securities:
Amortized cost	839	2,638
Gross unrealized gains	14	142
Gross unrealized losses	0	(5)
Available-for-sale, at fair value	853	2,775
Commercial [Member]
Available-for-sale debt securities:
Amortized cost	4,190	4,207
Gross unrealized gains	41	40
Gross unrealized losses	(5)	(22)
Available-for-sale, at fair value	4,226	4,225
Corporate debt securities [Member]
Available-for-sale debt securities:
Amortized cost	5,739	6,230
Gross unrealized gains	198	131
Gross unrealized losses	(44)	(90)
Available-for-sale, at fair value	5,893	6,271
Collateralized loan obligations [Member]
Available-for-sale debt securities:
Amortized cost	30,968	35,581
Gross unrealized gains	147	158
Gross unrealized losses	(105)	(396)
Available-for-sale, at fair value	31,010	35,343
Held-to-maturity debt securities:
Held-to-maturity securities, Amortized Cost	49	66
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Held-to-maturity, at fair value	49	66
Collateralized debt obligations [Member]
Available-for-sale debt securities:
Amortized cost	494	662
Available-for-sale, at fair value	609	800
Other [Member]
Available-for-sale debt securities:
Amortized cost	4,616	5,396
Gross unrealized gains	65	100
Gross unrealized losses	(14)	(13)
Available-for-sale, at fair value	$ 4,667	$ 5,483

AFS and HTM Debt Securities, Gr

AFS and HTM Debt Securities, Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	$ (161)	$ (598)
Less than 12 months, Fair value, available-for-sale	45,668	54,683
12 months or more, Gross unrealized losses, available-for-sale	(265)	(3,620)
12 months or more, Fair value, available-for-sale	27,697	128,631
Total, Gross unrealized losses, available-for-sale	(426)	(4,218)
Total Fair value, available for sale	73,365	183,314
Held-to-maturity debt securities:
Less than 12 months, Gross unrealized losses, held-to-maturity	(12)	(12)
Less than 12 months, Fair value, held-to-maturity	3,767	6,128
12 months or more, Gross unrealized losses, held-to-maturity	(6)	(2,807)
12 months or more, Fair value, held-to-maturity	103	122,816
Total, Gross unrealized losses, held-to-maturity	(18)	(2,819)
Total, Fair value, held-to-maturity	3,870	128,944
Total AFS and HTM debt securities:
Less than 12 months, Gross unrealized losses, investment securities	(173)	(610)
Less than 12 months, Fair value, investment securities	49,435	60,811
12 months or more, Gross unrealized losses, investment securities	(271)	(6,427)
12 months or more, Fair value, investment securities	27,800	251,447
Total, Gross unrealized losses, investment securities	(444)	(7,037)
Total, Fair value, investment securities	77,235	312,258
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(17)	(1)
Less than 12 months, Fair value, available-for-sale	11,776	498
12 months or more, Gross unrealized losses, available-for-sale	(5)	(105)
12 months or more, Fair value, available-for-sale	3,475	6,204
Total, Gross unrealized losses, available-for-sale	(22)	(106)
Total Fair value, available for sale	15,251	6,702
Held-to-maturity debt securities:
Less than 12 months, Gross unrealized losses, held-to-maturity	(1)	(3)
Less than 12 months, Fair value, held-to-maturity	804	895
12 months or more, Gross unrealized losses, held-to-maturity	0	(412)
12 months or more, Fair value, held-to-maturity	0	41,083
Total, Gross unrealized losses, held-to-maturity	(1)	(415)
Total, Fair value, held-to-maturity	804	41,978
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(34)	(73)
Less than 12 months, Fair value, available-for-sale	7,352	9,746
12 months or more, Gross unrealized losses, available-for-sale	(40)	(373)
12 months or more, Fair value, available-for-sale	2,517	9,017
Total, Gross unrealized losses, available-for-sale	(74)	(446)
Total Fair value, available for sale	9,869	18,763
Held-to-maturity debt securities:
Less than 12 months, Gross unrealized losses, held-to-maturity	(1)	(4)
Less than 12 months, Fair value, held-to-maturity	200	598
12 months or more, Gross unrealized losses, held-to-maturity	(4)	(112)
12 months or more, Fair value, held-to-maturity	72	3,992
Total, Gross unrealized losses, held-to-maturity	(5)	(116)
Total, Fair value, held-to-maturity	272	4,590
Mortgage-backed securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(45)	(65)
Less than 12 months, Fair value, available-for-sale	13,693	13,349
12 months or more, Gross unrealized losses, available-for-sale	(122)	(3,102)
12 months or more, Fair value, available-for-sale	11,882	112,400
Total, Gross unrealized losses, available-for-sale	(167)	(3,167)
Total Fair value, available for sale	25,575	125,749
Federal agencies [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(42)	(42)
Less than 12 months, Fair value, available-for-sale	12,965	10,979
12 months or more, Gross unrealized losses, available-for-sale	(120)	(3,098)
12 months or more, Fair value, available-for-sale	11,668	112,252
Total, Gross unrealized losses, available-for-sale	(162)	(3,140)
Total Fair value, available for sale	24,633	123,231
Held-to-maturity debt securities:
Less than 12 months, Gross unrealized losses, held-to-maturity	(10)	(5)
Less than 12 months, Fair value, held-to-maturity	2,763	4,635
12 months or more, Gross unrealized losses, held-to-maturity	(2)	(2,283)
12 months or more, Fair value, held-to-maturity	31	77,741
Total, Gross unrealized losses, held-to-maturity	(12)	(2,288)
Total, Fair value, held-to-maturity	2,794	82,376
Residential [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	0	(3)
Less than 12 months, Fair value, available-for-sale	0	398
12 months or more, Gross unrealized losses, available-for-sale	0	(2)
12 months or more, Fair value, available-for-sale	0	69
Total, Gross unrealized losses, available-for-sale	0	(5)
Total Fair value, available for sale	0	467
Commercial [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(3)	(20)
Less than 12 months, Fair value, available-for-sale	728	1,972
12 months or more, Gross unrealized losses, available-for-sale	(2)	(2)
12 months or more, Fair value, available-for-sale	214	79
Total, Gross unrealized losses, available-for-sale	(5)	(22)
Total Fair value, available for sale	942	2,051
Corporate debt securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(17)	(64)
Less than 12 months, Fair value, available-for-sale	581	1,965
12 months or more, Gross unrealized losses, available-for-sale	(27)	(26)
12 months or more, Fair value, available-for-sale	253	298
Total, Gross unrealized losses, available-for-sale	(44)	(90)
Total Fair value, available for sale	834	2,263
Collateralized loan and other debt obligations [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(42)	(388)
Less than 12 months, Fair value, available-for-sale	10,919	28,306
12 months or more, Gross unrealized losses, available-for-sale	(63)	(8)
12 months or more, Fair value, available-for-sale	9,334	553
Total, Gross unrealized losses, available-for-sale	(105)	(396)
Total Fair value, available for sale	20,253	28,859
Held-to-maturity debt securities:
Less than 12 months, Gross unrealized losses, held-to-maturity	0	0
Less than 12 months, Fair value, held-to-maturity	0	0
12 months or more, Gross unrealized losses, held-to-maturity	0	0
12 months or more, Fair value, held-to-maturity	0	0
Total, Gross unrealized losses, held-to-maturity	0	0
Total, Fair value, held-to-maturity	0	0
Other [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(6)	(7)
Less than 12 months, Fair value, available-for-sale	1,347	819
12 months or more, Gross unrealized losses, available-for-sale	(8)	(6)
12 months or more, Fair value, available-for-sale	236	159
Total, Gross unrealized losses, available-for-sale	(14)	(13)
Total Fair value, available for sale	$ 1,583	$ 978

AFS and HTM Debt Securities, Un

AFS and HTM Debt Securities, Unrealized Loss Position, by Credit Rating (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Available-for-sale debt securities:
Gross unrealized losses	$ (426)	$ (4,218)
Available-for-sale, at fair value	271,236	269,912
Held-to-maturity debt securities:
Gross unrealized losses	(18)	(2,819)
Fair value	156,279	142,115
Total AFS and HTM debt securities:
Gross unrealized losses	(444)	(7,037)
Fair value	427,515	412,027
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Gross unrealized losses	(22)	(106)
Available-for-sale, at fair value	16,549	13,348
Held-to-maturity debt securities:
Gross unrealized losses	(1)	(415)
Fair value	45,463	44,340
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Gross unrealized losses	(74)	(446)
Available-for-sale, at fair value	40,503	49,264
Held-to-maturity debt securities:
Gross unrealized losses	(5)	(116)
Fair value	13,022	6,200
Mortgage-backed securities [Member]
Available-for-sale debt securities:
Gross unrealized losses	(167)	(3,167)
Available-for-sale, at fair value	172,614	160,203
Federal agencies [Member]
Available-for-sale debt securities:
Gross unrealized losses	(162)	(3,140)
Available-for-sale, at fair value	167,535	153,203
Held-to-maturity debt securities:
Gross unrealized losses	(12)	(2,288)
Fair value	97,745	91,509
Residential [Member]
Available-for-sale debt securities:
Gross unrealized losses	0	(5)
Available-for-sale, at fair value	853	2,775
Commercial [Member]
Available-for-sale debt securities:
Gross unrealized losses	(5)	(22)
Available-for-sale, at fair value	4,226	4,225
Corporate debt securities [Member]
Available-for-sale debt securities:
Gross unrealized losses	(44)	(90)
Available-for-sale, at fair value	5,893	6,271
Collateralized loan and other debt obligations [Member]
Available-for-sale debt securities:
Gross unrealized losses	(105)	(396)
Available-for-sale, at fair value	31,010	35,343
Held-to-maturity debt securities:
Gross unrealized losses	0	0
Fair value	49	66
Other [Member]
Available-for-sale debt securities:
Gross unrealized losses	(14)	(13)
Available-for-sale, at fair value	4,667	5,483
Unrated Investment Grade Securities [Member]
Total AFS and HTM debt securities:
Gross unrealized losses	(8)	(20)
Fair value	3,000	5,200
Investment grade [Member]
Available-for-sale debt securities:
Gross unrealized losses	(375)	(4,113)
Available-for-sale, at fair value	72,175	181,050
Held-to-maturity debt securities:
Gross unrealized losses	(14)	(2,809)
Fair value	3,680	128,545
Total AFS and HTM debt securities:
Gross unrealized losses	(389)	(6,922)
Fair value	75,855	309,595
Investment grade [Member] | Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Gross unrealized losses	(22)	(106)
Available-for-sale, at fair value	15,251	6,702
Held-to-maturity debt securities:
Gross unrealized losses	(1)	(415)
Fair value	804	41,978
Investment grade [Member] | Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Gross unrealized losses	(70)	(425)
Available-for-sale, at fair value	9,686	18,447
Held-to-maturity debt securities:
Gross unrealized losses	(5)	(116)
Fair value	272	4,590
Investment grade [Member] | Mortgage-backed securities [Member]
Available-for-sale debt securities:
Gross unrealized losses	(165)	(3,162)
Available-for-sale, at fair value	25,491	125,525
Investment grade [Member] | Federal agencies [Member]
Available-for-sale debt securities:
Gross unrealized losses	(162)	(3,140)
Available-for-sale, at fair value	24,633	123,231
Held-to-maturity debt securities:
Gross unrealized losses	(8)	(2,278)
Fair value	2,604	81,977
Investment grade [Member] | Residential [Member]
Available-for-sale debt securities:
Gross unrealized losses	0	(2)
Available-for-sale, at fair value	0	295
Investment grade [Member] | Commercial [Member]
Available-for-sale debt securities:
Gross unrealized losses	(3)	(20)
Available-for-sale, at fair value	858	1,999
Investment grade [Member] | Corporate debt securities [Member]
Available-for-sale debt securities:
Gross unrealized losses	(7)	(17)
Available-for-sale, at fair value	292	791
Investment grade [Member] | Collateralized loan and other debt obligations [Member]
Available-for-sale debt securities:
Gross unrealized losses	(105)	(396)
Available-for-sale, at fair value	20,253	28,859
Held-to-maturity debt securities:
Gross unrealized losses	0	0
Fair value	0	0
Investment grade [Member] | Other [Member]
Available-for-sale debt securities:
Gross unrealized losses	(6)	(7)
Available-for-sale, at fair value	1,202	726
Non-investment grade [Member]
Available-for-sale debt securities:
Gross unrealized losses	(51)	(105)
Available-for-sale, at fair value	1,190	2,264
Held-to-maturity debt securities:
Gross unrealized losses	(4)	(10)
Fair value	190	399
Total AFS and HTM debt securities:
Gross unrealized losses	(55)	(115)
Fair value	1,380	2,663
Non-investment grade [Member] | Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Gross unrealized losses	0	0
Available-for-sale, at fair value	0	0
Held-to-maturity debt securities:
Gross unrealized losses	0	0
Fair value	0	0
Non-investment grade [Member] | Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Gross unrealized losses	(4)	(21)
Available-for-sale, at fair value	183	316
Held-to-maturity debt securities:
Gross unrealized losses	0	0
Fair value	0	0
Non-investment grade [Member] | Mortgage-backed securities [Member]
Available-for-sale debt securities:
Gross unrealized losses	(2)	(5)
Available-for-sale, at fair value	84	224
Non-investment grade [Member] | Federal agencies [Member]
Available-for-sale debt securities:
Gross unrealized losses	0	0
Available-for-sale, at fair value	0	0
Held-to-maturity debt securities:
Gross unrealized losses	(4)	(10)
Fair value	190	399
Non-investment grade [Member] | Residential [Member]
Available-for-sale debt securities:
Gross unrealized losses	0	(3)
Available-for-sale, at fair value	0	172
Non-investment grade [Member] | Commercial [Member]
Available-for-sale debt securities:
Gross unrealized losses	(2)	(2)
Available-for-sale, at fair value	84	52
Non-investment grade [Member] | Corporate debt securities [Member]
Available-for-sale debt securities:
Gross unrealized losses	(37)	(73)
Available-for-sale, at fair value	542	1,472
Non-investment grade [Member] | Collateralized loan and other debt obligations [Member]
Available-for-sale debt securities:
Gross unrealized losses	0	0
Available-for-sale, at fair value	0	0
Held-to-maturity debt securities:
Gross unrealized losses	0	0
Fair value	0	0
Non-investment grade [Member] | Other [Member]
Available-for-sale debt securities:
Gross unrealized losses	(8)	(6)
Available-for-sale, at fair value	$ 381	$ 252

AFS and HTM Debt Securities, Co

AFS and HTM Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 271,236	$ 269,912
Weighted average yield contractual maturities, Total, available-for-sale	3.62%
Due within 1 year, Contractual maturities, available-for-sale	$ 12,691
Percentage of weighted average yield, Due within 1 year, available-for-sale	2.10%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 13,689
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	3.08%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 21,705
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	3.58%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 223,151
Percentage of weighted average yield, Due after 10 years, available-for-sale	3.75%
Held-to-maturity securities:
Held-to-maturity securities, Amortized Cost	$ 153,179	144,788
Weighted average yield contractual maturities, Total, held-to-maturity, cost	2.97%
Due within 1 year, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 1 year, held-to-maturity, cost	0.00%
Due in 1-5 years, Contractual maturities, held-to-maturity, cost	$ 39,628
Percentage of weighted average yield, Due In 1-5 years, held-to-maturity, cost	2.12%
Due in 5-10 years, Contractual maturities, held-to-maturity, cost	$ 7,049
Percentage of weighted average yield, Due In 5-10 years, held-to-maturity, cost	2.86%
Due in 10 years or more, Contractual maturities, held-to-maturity, cost	$ 106,502
Percentage of weighted average yield, Due after 10 years, held-to-maturity, cost	3.29%
Held-to-maturity securities, fair value:
Contractual maturities, Total amount, held-to-maturity, fair value	$ 156,279	142,115
Due within 1 year, Contractual maturities, held-to-maturity, fair value	0
Due in 1-5 years, Contractual maturities, held-to-maturity, fair value	40,154
Due in 5-10 years, Contractual maturities, held-to-maturity, fair value	7,281
Due in 10 years or more, Contractual maturities, held-to-maturity, fair value	108,844
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 16,549	13,348
Weighted average yield contractual maturities, Total, available-for-sale	1.92%
Due within 1 year, Contractual maturities, available-for-sale	$ 10,035
Percentage of weighted average yield, Due within 1 year, available-for-sale	1.74%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 6,192
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	2.21%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 47
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	1.84%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 275
Percentage of weighted average yield, Due after 10 years, available-for-sale	2.25%
Held-to-maturity securities:
Held-to-maturity securities, Amortized Cost	$ 44,774	44,751
Weighted average yield contractual maturities, Total, held-to-maturity, cost	2.12%
Due within 1 year, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 1 year, held-to-maturity, cost	0.00%
Due in 1-5 years, Contractual maturities, held-to-maturity, cost	$ 39,530
Percentage of weighted average yield, Due In 1-5 years, held-to-maturity, cost	2.11%
Due in 5-10 years, Contractual maturities, held-to-maturity, cost	$ 5,244
Percentage of weighted average yield, Due In 5-10 years, held-to-maturity, cost	2.19%
Due in 10 years or more, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due after 10 years, held-to-maturity, cost	0.00%
Held-to-maturity securities, fair value:
Contractual maturities, Total amount, held-to-maturity, fair value	$ 45,463	44,340
Due within 1 year, Contractual maturities, held-to-maturity, fair value	0
Due in 1-5 years, Contractual maturities, held-to-maturity, fair value	40,056
Due in 5-10 years, Contractual maturities, held-to-maturity, fair value	5,407
Due in 10 years or more, Contractual maturities, held-to-maturity, fair value	0
Securities of U.S. states and political subdivisions [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 40,503	49,264
Weighted average yield contractual maturities, Total, available-for-sale	4.84%
Due within 1 year, Contractual maturities, available-for-sale	$ 2,200
Percentage of weighted average yield, Due within 1 year, available-for-sale	3.01%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 4,455
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	3.32%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 4,240
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	3.36%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 29,608
Percentage of weighted average yield, Due after 10 years, available-for-sale	5.42%
Held-to-maturity securities:
Held-to-maturity securities, Amortized Cost	$ 12,719	6,286
Weighted average yield contractual maturities, Total, held-to-maturity, cost	4.99%
Due within 1 year, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 1 year, held-to-maturity, cost	0.00%
Due in 1-5 years, Contractual maturities, held-to-maturity, cost	$ 83
Percentage of weighted average yield, Due In 1-5 years, held-to-maturity, cost	6.02%
Due in 5-10 years, Contractual maturities, held-to-maturity, cost	$ 1,756
Percentage of weighted average yield, Due In 5-10 years, held-to-maturity, cost	4.86%
Due in 10 years or more, Contractual maturities, held-to-maturity, cost	$ 10,880
Percentage of weighted average yield, Due after 10 years, held-to-maturity, cost	5.00%
Held-to-maturity securities, fair value:
Contractual maturities, Total amount, held-to-maturity, fair value	$ 13,022	6,200
Due within 1 year, Contractual maturities, held-to-maturity, fair value	0
Due in 1-5 years, Contractual maturities, held-to-maturity, fair value	83
Due in 5-10 years, Contractual maturities, held-to-maturity, fair value	1,825
Due in 10 years or more, Contractual maturities, held-to-maturity, fair value	11,114
Mortgage-backed securities [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 172,614	160,203
Weighted average yield contractual maturities, Total, available-for-sale	3.47%
Due within 1 year, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due within 1 year, available-for-sale	0.00%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 152
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	3.37%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 1,883
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	2.75%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 170,579
Percentage of weighted average yield, Due after 10 years, available-for-sale	3.48%
Federal agencies [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 167,535	153,203
Weighted average yield contractual maturities, Total, available-for-sale	3.47%
Due within 1 year, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due within 1 year, available-for-sale	0.00%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 152
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	3.37%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 1,543
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	2.59%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 165,840
Percentage of weighted average yield, Due after 10 years, available-for-sale	3.48%
Held-to-maturity securities:
Held-to-maturity securities, Amortized Cost	$ 95,637	93,685
Weighted average yield contractual maturities, Total, held-to-maturity, cost	3.10%
Due within 1 year, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 1 year, held-to-maturity, cost	0.00%
Due in 1-5 years, Contractual maturities, held-to-maturity, cost	$ 15
Percentage of weighted average yield, Due In 1-5 years, held-to-maturity, cost	3.53%
Due in 5-10 years, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 5-10 years, held-to-maturity, cost	0.00%
Due in 10 years or more, Contractual maturities, held-to-maturity, cost	$ 95,622
Percentage of weighted average yield, Due after 10 years, held-to-maturity, cost	3.10%
Held-to-maturity securities, fair value:
Contractual maturities, Total amount, held-to-maturity, fair value	$ 97,745	91,509
Due within 1 year, Contractual maturities, held-to-maturity, fair value	0
Due in 1-5 years, Contractual maturities, held-to-maturity, fair value	15
Due in 5-10 years, Contractual maturities, held-to-maturity, fair value	0
Due in 10 years or more, Contractual maturities, held-to-maturity, fair value	97,730
Residential [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 853	2,775
Weighted average yield contractual maturities, Total, available-for-sale	2.88%
Due within 1 year, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due within 1 year, available-for-sale	0.00%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	0.00%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	0.00%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 853
Percentage of weighted average yield, Due after 10 years, available-for-sale	2.88%
Commercial [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 4,226	4,225
Weighted average yield contractual maturities, Total, available-for-sale	3.57%
Due within 1 year, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due within 1 year, available-for-sale	0.00%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	0.00%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 340
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	3.50%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 3,886
Percentage of weighted average yield, Due after 10 years, available-for-sale	3.58%
Corporate debt securities [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 5,893	6,271
Weighted average yield contractual maturities, Total, available-for-sale	4.95%
Due within 1 year, Contractual maturities, available-for-sale	$ 452
Percentage of weighted average yield, Due within 1 year, available-for-sale	5.86%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 2,193
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	4.91%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 2,629
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	4.70%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 619
Percentage of weighted average yield, Due after 10 years, available-for-sale	5.50%
Collateralized loan and other debt obligations [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 31,010	35,343
Weighted average yield contractual maturities, Total, available-for-sale	3.64%
Due within 1 year, Contractual maturities, available-for-sale	$ 0
Percentage of weighted average yield, Due within 1 year, available-for-sale	0.00%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 1
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	4.66%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 11,548
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	3.73%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 19,461
Percentage of weighted average yield, Due after 10 years, available-for-sale	3.59%
Held-to-maturity securities:
Held-to-maturity securities, Amortized Cost	$ 49	66
Weighted average yield contractual maturities, Total, held-to-maturity, cost	3.48%
Due within 1 year, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 1 year, held-to-maturity, cost	0.00%
Due in 1-5 years, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due In 1-5 years, held-to-maturity, cost	0.00%
Due in 5-10 years, Contractual maturities, held-to-maturity, cost	$ 49
Percentage of weighted average yield, Due In 5-10 years, held-to-maturity, cost	3.48%
Due in 10 years or more, Contractual maturities, held-to-maturity, cost	$ 0
Percentage of weighted average yield, Due after 10 years, held-to-maturity, cost	0.00%
Held-to-maturity securities, fair value:
Contractual maturities, Total amount, held-to-maturity, fair value	$ 49	66
Due within 1 year, Contractual maturities, held-to-maturity, fair value	0
Due in 1-5 years, Contractual maturities, held-to-maturity, fair value	0
Due in 5-10 years, Contractual maturities, held-to-maturity, fair value	49
Due in 10 years or more, Contractual maturities, held-to-maturity, fair value	0
Other [Member]
Available-for-sale securities:
Contractual maturities, Total amount, available-for-sale	$ 4,667	$ 5,483
Weighted average yield contractual maturities, Total, available-for-sale	2.82%
Due within 1 year, Contractual maturities, available-for-sale	$ 4
Percentage of weighted average yield, Due within 1 year, available-for-sale	5.10%
Due in 1-5 years, Contractual maturities, available-for-sale	$ 696
Percentage of weighted average yield, Due in 1-5 years, available-for-sale	3.49%
Due in 5-10 years, Contractual maturities, available-for-sale	$ 1,358
Percentage of weighted average yield, Due In 5-10 years, available-for-sale	1.96%
Due in 10 years or more, Contractual maturities, available-for-sale	$ 2,609
Percentage of weighted average yield, Due after 10 years, available-for-sale	3.09%

AFS and HTM Debt Securities, Re

AFS and HTM Debt Securities, Realized Gains and Losses (Details) - Debt securities [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Available-For-Sale Debt Securities, Realized Gain (Loss) [Abstract]
Gross realized gains	$ 21	$ 65	$ 223	$ 139
Gross realized losses	(12)	(3)	(17)	(17)
OTTI write-downs	(6)	(5)	(58)	(23)
Net realized gains from available-for-sale debt securities	$ 3	$ 57	$ 148	$ 99

AFS and HTM Debt Securities, OT

AFS and HTM Debt Securities, OTTI Included in Earnings (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Schedule Of Available-For-Sale Debt Securities [Line Items]
Other-than-temporary impairment loss, debt securities, held-to-maturity, before tax			$ 0	$ 0
Debt securities [Member]
OTTI write-downs included in earnings (Abstract)
Total debt securities (1)	$ 6	$ 5	58	23
Securities of U.S. states and political subdivisions [Member]
OTTI write-downs included in earnings (Abstract)
Total debt securities (1)	0	0	33	2
Residential [Member]
OTTI write-downs included in earnings (Abstract)
Total debt securities (1)	0	0	0	2
Commercial [Member]
OTTI write-downs included in earnings (Abstract)
Total debt securities (1)	0	1	17	15
Corporate debt securities [Member]
OTTI write-downs included in earnings (Abstract)
Total debt securities (1)	6	0	8	0
Other debt securities [Member]
OTTI write-downs included in earnings (Abstract)
Total debt securities (1)	$ 0	$ 4	$ 0	$ 4

AFS and HTM Debt Securities, _2

AFS and HTM Debt Securities, OTTI Debt Securities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt securities [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	$ 6	$ 5	$ 58	$ 23
Total changes to OCI for non-credit-related OTTI	2	(5)	1	(9)
Total OTTI losses recorded on debt securities	8	0	59	14
Securities of U.S. states and political subdivisions [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	0	0	33	2
Total changes to OCI for non-credit-related OTTI	0	0	(1)	(2)
Residential [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	0	0	0	2
Total changes to OCI for non-credit-related OTTI	0	0	(1)	(1)
Commercial [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	0	1	17	15
Total changes to OCI for non-credit-related OTTI	1	(5)	2	(6)
Other debt securities [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	0	4	0	4
Total changes to OCI for non-credit-related OTTI	1	0	1	0
Credit-related OTTI [Member] | Debt securities [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	0	5	23	22
Intent-to-sell OTTI [Member] | Debt securities [Member]
OTTI on debt securities (Abstract)
Total recorded as part of gross realized losses	$ 6	$ 0	$ 35	$ 1

AFS and HTM Debt Securities, Cr

AFS and HTM Debt Securities, Credit Loss Component (Details) - Debt securities [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Credit loss recognized, beginning of period	$ 216	$ 626	$ 562	$ 742
Additions:
For securities with initial credit impairments	0	0	6	0
For securities with previous credit impairments	0	5	17	22
Total additions	0	5	23	22
Reductions:
For securities sold, matured, or intended/required to be sold	(22)	(68)	(391)	(199)
For recoveries of previous credit impairments	0	0	0	(2)
Total reductions	(22)	(68)	(391)	(201)
Credit loss recognized, end of period	$ 194	$ 563	$ 194	$ 563

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses, Loans Outstanding (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred income as a percentage of total loans outstanding		1.00%	1.00%
Loans	[1]	$ 954,915	$ 953,110
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		512,332	513,405
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		350,875	350,199
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		121,936	121,014
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		19,921	22,496
Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		19,600	19,696
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		442,583	439,705
Real estate 1-4 family first mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		290,604	285,065
Real estate 1-4 family junior lien mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		30,838	34,398
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		39,629	39,025
Automobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		46,738	45,069
Other revolving credit and installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		34,774	36,148
Geographic distribution, foreign [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		73,933	71,465
Geographic distribution, foreign [Member] | Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		64,418	62,564
Geographic distribution, foreign [Member] | Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		7,056	6,731
Geographic distribution, foreign [Member] | Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		1,262	1,011
Geographic distribution, foreign [Member] | Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		$ 1,197	$ 1,159
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses, Significant Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	$ 1,481	$ 229	$ 2,488	$ 890
Sales	(518)	(551)	(1,806)	(1,393)
Transfers to MLHFS/LHFS	(62)	(392)	(2,006)	(2,537)
Total Commercial [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	571	225	1,570	879
Sales	(433)	(438)	(1,389)	(1,192)
Transfers to MLHFS/LHFS	(25)	(21)	(117)	(541)
Total Consumer [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	910	4	918	11
Sales	(85)	(113)	(417)	(201)
Transfers to MLHFS/LHFS	$ (37)	$ (371)	$ (1,889)	$ (1,996)

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses, Commitments to Lend (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, temporary advance arrangements	$ 74,900
Total unfunded credit commitments	579,838	$ 558,701
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	362,144	353,876
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	337,324	330,492
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	8,125	6,984
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	16,695	16,400
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	217,694	204,825
Real estate 1-4 family first mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	39,648	29,736
Real estate 1-4 family junior lien mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	37,151	37,719
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	114,717	109,840
Other revolving credit and installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	26,178	27,530
International [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial letters of credit international	$ 1,000	$ 919

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses, Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 10,603	$ 11,110	$ 10,707	$ 11,960
Provision for credit losses	695	580	2,043	1,223
Interest income on certain impaired loans	(34)	(42)	(112)	(128)
Loan charge-offs	(1,009)	(1,076)	(3,105)	(3,291)
Loan recoveries	364	396	1,112	1,268
Net loan charge-offs	(645)	(680)	(1,993)	(2,023)
Other	(6)	(12)	(32)	(76)
Allowance for credit losses, ending balance	10,613	10,956	10,613	10,956
Components:
Allowance for loan losses					$ 9,715	$ 9,775
Total allowance for credit losses	$ 10,603	$ 11,110	$ 10,613	$ 11,960	$ 10,613	10,707	$ 10,956
Net loan charge-offs (annualized) as a percentage of average total loans	0.27%	0.29%	0.28%	0.29%
Allowance for loan losses as a percentage of total loans					1.02%		1.06%
Allowance for credit losses as a percentage of total loans					1.11%		1.16%
SEC Schedule, 12-09, Allowance, Loss on Finance Receivable [Member]
Components:
Allowance for loan losses					$ 9,715		$ 10,021
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member]
Components:
Allowance for loan losses					898		935
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 6,298	$ 6,711	$ 6,417	$ 6,632
Provision for credit losses	84	22	294	280
Interest income on certain impaired loans	(10)	(12)	(35)	(37)
Loan charge-offs	(223)	(233)	(654)	(589)
Loan recoveries	84	81	205	292
Net loan charge-offs	(139)	(152)	(449)	(297)
Other	(3)	(1)	3	(10)
Allowance for credit losses, ending balance	6,230	6,568	6,230	6,568
Components:
Total allowance for credit losses	6,298	6,711	6,230	6,632	6,230	6,417	6,568
Commercial and industrial loans [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(209)	(209)	(590)	(507)
Loan recoveries	62	61	151	216
Commercial real estate mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(2)	(9)	(28)	(30)
Loan recoveries	10	10	26	46
Commercial real estate construction [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	0	0	(1)	0
Loan recoveries	8	2	13	12
Commercial lease financing receivable [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(12)	(15)	(35)	(52)
Loan recoveries	4	8	15	18
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	4,305	4,399	4,290	5,328
Provision for credit losses	611	558	1,749	943
Interest income on certain impaired loans	(24)	(30)	(77)	(91)
Loan charge-offs	(786)	(843)	(2,451)	(2,702)
Loan recoveries	280	315	907	976
Net loan charge-offs	(506)	(528)	(1,544)	(1,726)
Other	(3)	(11)	(35)	(66)
Allowance for credit losses, ending balance	4,383	4,388	4,383	4,388
Components:
Total allowance for credit losses	4,305	4,399	4,383	4,388	$ 4,383	$ 4,290	$ 4,388
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(31)	(45)	(101)	(141)
Loan recoveries	36	70	148	207
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(27)	(47)	(90)	(141)
Loan recoveries	49	56	140	171
Credit Card [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(404)	(376)	(1,278)	(1,185)
Loan recoveries	85	77	258	231
Automobile [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(156)	(214)	(485)	(730)
Loan recoveries	80	84	266	279
Other revolving credit and installment [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(168)	(161)	(497)	(505)
Loan recoveries	$ 30	$ 28	$ 95	$ 88

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses, Allowance Activity by Portfolio Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 10,603	$ 11,110	$ 10,707	$ 11,960
Provision for credit losses	695	580	2,043	1,223
Interest income on certain impaired loans	(34)	(42)	(112)	(128)
Loan charge-offs	(1,009)	(1,076)	(3,105)	(3,291)
Loan recoveries	364	396	1,112	1,268
Net loan charge-offs	(645)	(680)	(1,993)	(2,023)
Other	(6)	(12)	(32)	(76)
Allowance for credit losses, ending balance	10,613	10,956	10,613	10,956
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	6,298	6,711	6,417	6,632
Provision for credit losses	84	22	294	280
Interest income on certain impaired loans	(10)	(12)	(35)	(37)
Loan charge-offs	(223)	(233)	(654)	(589)
Loan recoveries	84	81	205	292
Net loan charge-offs	(139)	(152)	(449)	(297)
Other	(3)	(1)	3	(10)
Allowance for credit losses, ending balance	6,230	6,568	6,230	6,568
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	4,305	4,399	4,290	5,328
Provision for credit losses	611	558	1,749	943
Interest income on certain impaired loans	(24)	(30)	(77)	(91)
Loan charge-offs	(786)	(843)	(2,451)	(2,702)
Loan recoveries	280	315	907	976
Net loan charge-offs	(506)	(528)	(1,544)	(1,726)
Other	(3)	(11)	(35)	(66)
Allowance for credit losses, ending balance	$ 4,383	$ 4,388	$ 4,383	$ 4,388

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses, Allowance by Credit Impairment Methodology (Details) - USD ($) $ in Millions		Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses		$ 10,613	$ 10,603	$ 10,707	$ 10,956	$ 11,110	$ 11,960
Loans	[1]	954,915		953,110
Total Commercial [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses		6,230	6,298	6,417	6,568	6,711	6,632
Loans		512,332		513,405
Total Consumer [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses		4,383	$ 4,305	4,290	$ 4,388	$ 4,399	$ 5,328
Loans		442,583		439,705
Non-PCI [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Allowance for credit losses, collectively evaluated		9,259		9,264
Allowance for credit losses, individually evaluated		1,354		1,443
Financing receivable, collectively evaluated		940,805		931,754
Financing receivable, individually evaluated		13,503		16,347
Non-PCI [Member] | Total Commercial [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Allowance for credit losses, collectively evaluated		5,774		5,903
Allowance for credit losses, individually evaluated		456		514
Financing receivable, collectively evaluated		509,081		510,180
Financing receivable, individually evaluated		3,251		3,221
Loans		512,332		513,401
Non-PCI [Member] | Total Consumer [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Allowance for credit losses, collectively evaluated		3,485		3,361
Allowance for credit losses, individually evaluated		898		929
Financing receivable, collectively evaluated		431,724		421,574
Financing receivable, individually evaluated		10,252		13,126
Loans		441,976		434,700
PCI [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses		0		0
Loans		607		5,009
PCI [Member] | Total Commercial [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses		0		0
Loans		0		4
PCI [Member] | Total Consumer [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses		0		0
Loans		$ 607		$ 5,005
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses, Loans by Credit Quality Indicator, Commercial (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Abstract]
Loans	[1]	$ 954,915	$ 953,110
Total Commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		512,332	513,405
Commercial and industrial loans [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		350,875	350,199
Commercial real estate mortgage [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		121,936	121,014
Commercial real estate construction [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		19,921	22,496
Commercial lease financing receivable [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		19,600	19,696
Non-PCI [Member]
Loans and Leases Receivable Disclosure [Abstract]
Nonaccrual loans		5,545	6,496
Non-PCI [Member] | Total Commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		512,332	513,401
Nonaccrual loans		2,312	2,188
Non-PCI [Member] | Total Commercial [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		492,289	492,804
Non-PCI [Member] | Total Commercial [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		20,043	20,597
Nonaccrual loans		2,300
Non-PCI [Member] | Commercial and industrial loans [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		350,875	350,195
Nonaccrual loans		1,539	1,486
Non-PCI [Member] | Commercial and industrial loans [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		335,812	335,412
Non-PCI [Member] | Commercial and industrial loans [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		15,063	14,783
Non-PCI [Member] | Commercial real estate mortgage [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		121,936	121,014
Nonaccrual loans		669	580
Non-PCI [Member] | Commercial real estate mortgage [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		118,276	116,514
Non-PCI [Member] | Commercial real estate mortgage [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		3,660	4,500
Non-PCI [Member] | Commercial real estate construction [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		19,921	22,496
Nonaccrual loans		32	32
Non-PCI [Member] | Commercial real estate construction [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		19,720	22,207
Non-PCI [Member] | Commercial real estate construction [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		201	289
Non-PCI [Member] | Commercial lease financing receivable [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		19,600	19,696
Nonaccrual loans		72	90
Non-PCI [Member] | Commercial lease financing receivable [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		18,481	18,671
Non-PCI [Member] | Commercial lease financing receivable [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		1,119	1,025
PCI [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		607	5,009
PCI [Member] | Total Commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		0	4
PCI [Member] | Commercial and industrial loans [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		0	4
PCI [Member] | Commercial real estate mortgage [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		0	0
PCI [Member] | Commercial real estate construction [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		0	0
PCI [Member] | Commercial lease financing receivable [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans		$ 0	$ 0
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
By delinquency status:
Loans	[1]	$ 954,915	$ 953,110
Total Commercial [Member]
By delinquency status:
Loans		512,332	513,405
Commercial and industrial loans [Member]
By delinquency status:
Loans		350,875	350,199
Commercial real estate mortgage [Member]
By delinquency status:
Loans		121,936	121,014
Commercial real estate construction [Member]
By delinquency status:
Loans		19,921	22,496
Commercial lease financing receivable [Member]
By delinquency status:
Loans		19,600	19,696
Non-PCI [Member]
By delinquency status:
Nonaccrual loans		5,545	6,496
Non-PCI [Member] | Total Commercial [Member]
By delinquency status:
Loans		512,332	513,401
Nonaccrual loans		2,312	2,188
Non-PCI [Member] | Commercial and industrial loans [Member]
By delinquency status:
Loans		350,875	350,195
Nonaccrual loans		1,539	1,486
Non-PCI [Member] | Commercial real estate mortgage [Member]
By delinquency status:
Loans		121,936	121,014
Nonaccrual loans		669	580
Non-PCI [Member] | Commercial real estate construction [Member]
By delinquency status:
Loans		19,921	22,496
Nonaccrual loans		32	32
Non-PCI [Member] | Commercial lease financing receivable [Member]
By delinquency status:
Loans		19,600	19,696
Nonaccrual loans		72	90
PCI [Member]
By delinquency status:
Loans		607	5,009
PCI [Member] | Total Commercial [Member]
By delinquency status:
Loans		0	4
PCI [Member] | Commercial and industrial loans [Member]
By delinquency status:
Loans		0	4
PCI [Member] | Commercial real estate mortgage [Member]
By delinquency status:
Loans		0	0
PCI [Member] | Commercial real estate construction [Member]
By delinquency status:
Loans		0	0
PCI [Member] | Commercial lease financing receivable [Member]
By delinquency status:
Loans		0	0
Current-29 days past due and still accruing [Member] | Non-PCI [Member] | Total Commercial [Member]
By delinquency status:
Loans		508,813	510,188
Current-29 days past due and still accruing [Member] | Non-PCI [Member] | Commercial and industrial loans [Member]
By delinquency status:
Loans		348,730	348,158
Current-29 days past due and still accruing [Member] | Non-PCI [Member] | Commercial real estate mortgage [Member]
By delinquency status:
Loans		120,959	120,176
Current-29 days past due and still accruing [Member] | Non-PCI [Member] | Commercial real estate construction [Member]
By delinquency status:
Loans		19,847	22,411
Current-29 days past due and still accruing [Member] | Non-PCI [Member] | Commercial lease financing receivable [Member]
By delinquency status:
Loans		19,277	19,443
30-89 days past due and still accruing [Member] | Non-PCI [Member] | Total Commercial [Member]
By delinquency status:
Loans		1,173	931
30-89 days past due and still accruing [Member] | Non-PCI [Member] | Commercial and industrial loans [Member]
By delinquency status:
Loans		600	508
30-89 days past due and still accruing [Member] | Non-PCI [Member] | Commercial real estate mortgage [Member]
By delinquency status:
Loans		280	207
30-89 days past due and still accruing [Member] | Non-PCI [Member] | Commercial real estate construction [Member]
By delinquency status:
Loans		42	53
30-89 days past due and still accruing [Member] | Non-PCI [Member] | Commercial lease financing receivable [Member]
By delinquency status:
Loans		251	163
90 days past due and still accruing [Member] | Non-PCI [Member] | Total Commercial [Member]
By delinquency status:
Loans		34	94
90 days past due and still accruing [Member] | Non-PCI [Member] | Commercial and industrial loans [Member]
By delinquency status:
Loans		6	43
90 days past due and still accruing [Member] | Non-PCI [Member] | Commercial real estate mortgage [Member]
By delinquency status:
Loans		28	51
90 days past due and still accruing [Member] | Non-PCI [Member] | Commercial real estate construction [Member]
By delinquency status:
Loans		0	0
90 days past due and still accruing [Member] | Non-PCI [Member] | Commercial lease financing receivable [Member]
By delinquency status:
Loans		$ 0	$ 0
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
By delinquency status:
Loans	[1]	$ 954,915	$ 953,110
Loans held at fair value [Member]
By delinquency status:
Loans		925,750	923,703
Non-PCI [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		7,130	8,704
Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		822	979
Non-PCI [Member] | Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		6,308	7,725
PCI [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		119	370
By delinquency status:
Loans		607	5,009
Total Consumer [Member]
By delinquency status:
Loans		442,583	439,705
Total Consumer [Member] | Non-PCI [Member]
By delinquency status:
Loans		441,976	434,700
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		788	885
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Loans		186	244
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Loans		425,210	414,931
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Loans		2,636	3,130
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Loans		1,066	1,288
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Loans		592	712
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Loans		554	651
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Loans		754	1,056
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90 days past due and still accruing [Member]
By delinquency status:
Loans		1,900	2,400
Total Consumer [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		11,164	12,932
Total Consumer [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | Portion at Other than Fair Value Measurement [Member]
By delinquency status:
Loans		10,978	12,688
Total Consumer [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | 90 days past due and still accruing [Member]
By delinquency status:
Loans		6,300	7,700
Total Consumer [Member] | PCI [Member]
By delinquency status:
Loans		$ 607	$ 5,005
Total Consumer [Member] | PCI [Member] | Financing receivables equal to greater than 30 days past due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance, percent past due		27.00%	18.00%
Total Consumer [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		$ 607	$ 5,005
Residential mortgage [Member]
By delinquency status:
Loans		321,442	319,463
Residential mortgage [Member] | Non-PCI [Member]
By delinquency status:
Loans		320,835	314,458
Residential mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		11,164	12,932
Residential mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		607	5,005
Real estate 1-4 family first mortgage [Member]
By delinquency status:
Loans		290,604	285,065
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member]
By delinquency status:
Loans		290,011	280,077
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		100	124
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Loans		186	244
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Loans		276,336	263,881
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Loans		1,173	1,411
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Loans		418	549
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Loans		187	257
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Loans		158	225
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Loans		575	822
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		11,164	12,932
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | Portion at Other than Fair Value Measurement [Member]
By delinquency status:
Loans		10,978	12,688
Real estate 1-4 family first mortgage [Member] | PCI [Member]
By delinquency status:
Loans		593	4,988
Real estate 1-4 family first mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		593	4,988
Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Loans		30,838	34,398
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member]
By delinquency status:
Loans		30,824	34,381
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		35	32
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Loans		0	0
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Loans		30,171	33,644
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Loans		231	247
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Loans		114	126
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Loans		70	74
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Loans		73	77
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Loans		165	213
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		0	0
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | Portion at Other than Fair Value Measurement [Member]
By delinquency status:
Loans		0	0
Real estate 1-4 family junior lien mortgage [Member] | PCI [Member]
By delinquency status:
Loans		14	17
Real estate 1-4 family junior lien mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		14	17
Credit Card [Member]
By delinquency status:
Loans		39,629	39,025
Credit Card [Member] | Non-PCI [Member]
By delinquency status:
Loans		39,629	39,025
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		491	513
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Loans		0	0
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Loans		38,632	38,008
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Loans		298	292
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Loans		208	212
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Loans		188	192
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Loans		302	320
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Loans		1	1
Credit Card [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		0	0
Credit Card [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | Portion at Other than Fair Value Measurement [Member]
By delinquency status:
Loans		0	0
Credit Card [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		0	0
Automobile [Member]
By delinquency status:
Loans		46,738	45,069
Automobile [Member] | Non-PCI [Member]
By delinquency status:
Loans		46,738	45,069
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		75	114
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Loans		0	0
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Loans		45,599	43,604
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Loans		824	1,040
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Loans		240	314
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Loans		74	109
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Loans		1	2
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Loans		0	0
Automobile [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		0	0
Automobile [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | Portion at Other than Fair Value Measurement [Member]
By delinquency status:
Loans		0	0
Automobile [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		0	0
Other revolving credit and installment [Member]
By delinquency status:
Loans		34,774	36,148
Other revolving credit and installment [Member] | Non-PCI [Member]
By delinquency status:
Loans		34,774	36,148
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		87	102
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Loans		0	0
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Loans		34,472	35,794
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Loans		110	140
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Loans		86	87
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Loans		73	80
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Loans		20	27
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Loans		13	20
Other revolving credit and installment [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By delinquency status:
Loans		0	0
Other revolving credit and installment [Member] | Non-PCI [Member] | Government insured or guaranteed [Member] | Portion at Other than Fair Value Measurement [Member]
By delinquency status:
Loans		0	0
Other revolving credit and installment [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Loans		$ 0	$ 0
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
By FICO:
Loans	[1]	$ 954,915	$ 953,110
PCI [Member]
By FICO:
Loans		607	5,009
Total Consumer [Member]
By FICO:
Loans		442,583	439,705
Total Consumer [Member] | Non-PCI [Member]
By FICO:
Loans		441,976	434,700
Total Consumer [Member] | Non-PCI [Member] | FICO not required [Member]
By FICO:
Loans		8,900	8,900
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Loans		14,981	16,787
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Loans		11,244	11,901
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Loans		21,214	22,219
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Loans		36,670	37,659
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Loans		52,119	51,778
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Loans		84,807	80,004
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Loans		193,357	183,959
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Loans		7,566	8,576
Total Consumer [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Loans		8,854	8,885
Total Consumer [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		11,164	12,932
Total Consumer [Member] | PCI [Member]
By FICO:
Loans		607	5,005
Total Consumer [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		$ 607	$ 5,005
Total Consumer [Member] | PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Unpaid principal balance, percent of FICO score		19.00%	15.00%
Total Consumer [Member] | PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 680 [Member]
By FICO:
Unpaid principal balance, percent of FICO score		40.00%	45.00%
Residential mortgage [Member]
By FICO:
Loans		$ 321,442	$ 319,463
Residential mortgage [Member] | Non-PCI [Member]
By FICO:
Loans		320,835	314,458
Residential mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		11,164	12,932
Residential mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		607	5,005
Real estate 1-4 family first mortgage [Member]
By FICO:
Loans		290,604	285,065
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member]
By FICO:
Loans		290,011	280,077
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Loans		3,331	4,273
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Loans		2,484	2,974
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Loans		5,011	5,810
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Loans		12,825	13,568
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Loans		27,800	27,258
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Loans		62,039	57,193
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Loans		161,711	151,465
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Loans		3,646	4,604
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Loans		0	0
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		11,164	12,932
Real estate 1-4 family first mortgage [Member] | PCI [Member]
By FICO:
Loans		593	4,988
Real estate 1-4 family first mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		593	4,988
Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Loans		30,838	34,398
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member]
By FICO:
Loans		30,824	34,381
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Loans		1,219	1,454
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Loans		821	994
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Loans		1,551	1,898
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Loans		3,396	3,908
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Loans		4,694	5,323
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Loans		5,745	6,315
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Loans		12,236	13,190
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Loans		1,162	1,299
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Loans		0	0
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		0	0
Real estate 1-4 family junior lien mortgage [Member] | PCI [Member]
By FICO:
Loans		14	17
Real estate 1-4 family junior lien mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		14	17
Credit Card [Member]
By FICO:
Loans		39,629	39,025
Credit Card [Member] | Non-PCI [Member]
By FICO:
Loans		39,629	39,025
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Loans		3,210	3,292
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Loans		2,741	2,777
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Loans		6,410	6,464
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Loans		9,543	9,445
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Loans		8,201	7,949
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Loans		5,442	5,227
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Loans		3,901	3,794
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Loans		181	77
Credit Card [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Loans		0	0
Credit Card [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		0	0
Credit Card [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		0	0
Automobile [Member]
By FICO:
Loans		46,738	45,069
Automobile [Member] | Non-PCI [Member]
By FICO:
Loans		46,738	45,069
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Loans		6,539	7,071
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Loans		4,538	4,431
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Loans		6,476	6,225
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Loans		7,629	7,354
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Loans		7,245	6,853
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Loans		6,545	5,947
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Loans		7,699	7,099
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Loans		67	89
Automobile [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Loans		0	0
Automobile [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		0	0
Automobile [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		0	0
Other revolving credit and installment [Member]
By FICO:
Loans		34,774	36,148
Other revolving credit and installment [Member] | Non-PCI [Member]
By FICO:
Loans		34,774	36,148
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Loans		682	697
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Loans		660	725
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Loans		1,766	1,822
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Loans		3,277	3,384
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Loans		4,179	4,395
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Loans		5,036	5,322
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Loans		7,810	8,411
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Loans		2,510	2,507
Other revolving credit and installment [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Loans		8,854	8,885
Other revolving credit and installment [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By FICO:
Loans		0	0
Other revolving credit and installment [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By FICO:
Loans		$ 0	$ 0
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
High value properties, threshold		$ 1
By LTV/CLTV:
Loans	[1]	954,915	$ 953,110
PCI [Member]
By LTV/CLTV:
Loans		607	5,009
Total Consumer [Member]
By LTV/CLTV:
Loans		442,583	439,705
Total Consumer [Member] | Non-PCI [Member]
By LTV/CLTV:
Loans		441,976	434,700
Total Consumer [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Loans		11,164	12,932
Total Consumer [Member] | PCI [Member]
By LTV/CLTV:
Loans		607	5,005
Total Consumer [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Loans		$ 607	$ 5,005
Total Consumer [Member] | PCI [Member] | Non-government insured/guaranteed [Member] | LTV greater than 80% [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, percent of debt-to-value ratio		11.00%	10.00%
Residential mortgage [Member]
By LTV/CLTV:
Loans		$ 321,442	$ 319,463
Residential mortgage [Member] | Non-PCI [Member]
By LTV/CLTV:
Loans		320,835	314,458
Residential mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Loans		164,702	163,419
Residential mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Loans		123,925	115,660
Residential mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Loans		17,019	17,246
Residential mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Loans		2,087	2,807
Residential mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Loans		748	1,062
Residential mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Loans		1,190	1,332
Residential mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Loans		11,164	12,932
Residential mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Loans		607	5,005
Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Loans		290,604	285,065
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member]
By LTV/CLTV:
Loans		290,011	280,077
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Loans		149,800	147,666
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Loans		113,887	104,477
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Loans		13,054	12,372
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Loans		919	1,211
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Loans		346	484
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Loans		841	935
Real estate 1-4 family first mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Loans		11,164	12,932
Real estate 1-4 family first mortgage [Member] | PCI [Member]
By LTV/CLTV:
Loans		593	4,988
Real estate 1-4 family first mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Loans		593	4,988
Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Loans		30,838	34,398
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member]
By LTV/CLTV:
Loans		30,824	34,381
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Loans		14,902	15,753
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Loans		10,038	11,183
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Loans		3,965	4,874
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Loans		1,168	1,596
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Loans		402	578
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Loans		349	397
Real estate 1-4 family junior lien mortgage [Member] | Non-PCI [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Loans		0	0
Real estate 1-4 family junior lien mortgage [Member] | PCI [Member]
By LTV/CLTV:
Loans		14	17
Real estate 1-4 family junior lien mortgage [Member] | PCI [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Loans		$ 14	$ 17
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses, Nonaccrual (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans in process of foreclosure, amount	$ 3,600	$ 4,600
Government guaranteed mortgage loans upon foreclosure receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans in process of foreclosure, amount	2,800	3,200
Non-PCI [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	5,545	6,496
Non-PCI [Member] | Total Commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	2,312	2,188
Non-PCI [Member] | Commercial and industrial loans [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	1,539	1,486
Non-PCI [Member] | Commercial real estate mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	669	580
Non-PCI [Member] | Commercial real estate construction [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	32	32
Non-PCI [Member] | Commercial lease financing receivable [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	72	90
Non-PCI [Member] | Total Consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	3,233	4,308
Non-PCI [Member] | Real estate 1-4 family first mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	2,261	3,183
Non-PCI [Member] | Real estate 1-4 family junior lien mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	819	945
Non-PCI [Member] | Automobile [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	110	130
Non-PCI [Member] | Other revolving credit and installment [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	$ 43	$ 50

Loans and Allowance for Cred_15

Loans and Allowance for Credit Losses, 90 Days or More Past Due and Still Accruing (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Non-PCI [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	$ 7,130	$ 8,704
Non-PCI [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	822	979
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Total Commercial [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	34	94
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Commercial and industrial loans [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	6	43
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Commercial real estate mortgage [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	28	51
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Commercial real estate construction [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	0	0
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Total Consumer [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	788	885
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Real estate 1-4 family first mortgage [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	100	124
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Real estate 1-4 family junior lien mortgage [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	35	32
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Credit Card [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	491	513
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Automobile [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	75	114
Non-PCI [Member] | Non-government insured/guaranteed [Member] | Other revolving credit and installment [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	87	102
Non-PCI [Member] | Government insured or guaranteed [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	6,308	7,725
PCI [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	$ 119	$ 370

Loans and Allowance for Cred_16

Loans and Allowance for Credit Losses, Impaired Loans (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Trial modifications	$ 12,100	$ 15,500
Loans reclassified to held-for-sale	1,700
Loans and leases receivable, impaired, commitment to lend	462	513
Total Consumer [Member] | Trial modifications [Member]
Financing Receivable, Impaired [Line Items]
Trial modifications	123	149
Non-PCI [Member]
Impaired Loans [Abstract]
Unpaid principal balance	15,014	19,464
Impaired loans	13,503	16,347
Impaired loans with related allowance for credit losses	9,272	9,078
Related allowance for credit losses	1,354	1,443
Non-PCI [Member] | Government insured or guaranteed [Member]
Impaired Loans [Abstract]
Impaired loans	1,200	1,300
Non-PCI [Member] | Total Commercial [Member]
Impaired Loans [Abstract]
Unpaid principal balance	4,093	4,505
Impaired loans	3,251	3,221
Impaired loans with related allowance for credit losses	2,902	2,897
Related allowance for credit losses	456	514
Non-PCI [Member] | Commercial and industrial loans [Member]
Impaired Loans [Abstract]
Unpaid principal balance	2,719	3,057
Impaired loans	2,077	2,030
Impaired loans with related allowance for credit losses	1,853	1,730
Related allowance for credit losses	300	319
Non-PCI [Member] | Commercial real estate mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	1,198	1,228
Impaired loans	1,047	1,032
Impaired loans with related allowance for credit losses	922	1,009
Related allowance for credit losses	122	154
Non-PCI [Member] | Commercial real estate construction [Member]
Impaired Loans [Abstract]
Unpaid principal balance	71	74
Impaired loans	44	47
Impaired loans with related allowance for credit losses	44	46
Related allowance for credit losses	9	9
Non-PCI [Member] | Commercial lease financing receivable [Member]
Impaired Loans [Abstract]
Unpaid principal balance	105	146
Impaired loans	83	112
Impaired loans with related allowance for credit losses	83	112
Related allowance for credit losses	25	32
Non-PCI [Member] | Total Consumer [Member]
Impaired Loans [Abstract]
Unpaid principal balance	10,921	14,959
Impaired loans	10,252	13,126
Impaired loans with related allowance for credit losses	6,370	6,181
Related allowance for credit losses	898	929
Non-PCI [Member] | Real estate 1-4 family first mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	8,458	12,309
Impaired loans	7,994	10,738
Impaired loans with related allowance for credit losses	4,704	4,420
Related allowance for credit losses	486	525
Non-PCI [Member] | Real estate 1-4 family junior lien mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	1,643	1,886
Impaired loans	1,504	1,694
Impaired loans with related allowance for credit losses	968	1,133
Related allowance for credit losses	159	183
Non-PCI [Member] | Credit Card [Member]
Impaired Loans [Abstract]
Unpaid principal balance	504	449
Impaired loans	504	449
Impaired loans with related allowance for credit losses	504	449
Related allowance for credit losses	199	172
Non-PCI [Member] | Automobile [Member]
Impaired Loans [Abstract]
Unpaid principal balance	141	153
Impaired loans	82	89
Impaired loans with related allowance for credit losses	44	43
Related allowance for credit losses	9	8
Non-PCI [Member] | Other revolving credit and installment [Member]
Impaired Loans [Abstract]
Unpaid principal balance	175	162
Impaired loans	168	156
Impaired loans with related allowance for credit losses	150	136
Related allowance for credit losses	$ 45	$ 41

Loans and Allowance for Cred_17

Loans and Allowance for Credit Losses, Impaired Loans, Average Recorded Investment and Interest Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	$ 13,742	$ 17,426	$ 15,147	$ 17,900
Recognized interest income	206	289	690	851
Interest income:
Cash basis of accounting	55	92	190	257
Other	151	197	500	594
Total Commercial [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	3,275	3,680	3,402	3,730
Recognized interest income	44	77	150	209
Commercial and industrial loans [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	2,036	2,325	2,173	2,316
Recognized interest income	26	59	99	138
Commercial real estate mortgage [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	1,113	1,172	1,086	1,225
Recognized interest income	14	16	45	66
Commercial real estate construction [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	48	66	51	62
Recognized interest income	3	2	5	4
Commercial lease financing receivable [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	78	117	92	127
Recognized interest income	1	0	1	1
Total Consumer [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	10,467	13,746	11,745	14,170
Recognized interest income	162	212	540	642
Real estate 1-4 family first mortgage [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	8,165	11,318	9,400	11,718
Recognized interest income	116	165	397	504
Real estate 1-4 family junior lien mortgage [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	1,561	1,775	1,622	1,832
Recognized interest income	24	29	76	87
Credit Card [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	495	421	479	396
Recognized interest income	16	14	47	36
Automobile [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	83	87	85	85
Recognized interest income	3	2	10	8
Other revolving credit and installment [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	163	145	159	139
Recognized interest income	$ 3	$ 2	$ 10	$ 7

Loans and Allowance for Cred_18

Loans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, troubled debt restructuring	$ 12,100		$ 12,100		$ 15,500
Primary modification type
Financing receivable, troubled debt restructuring, post modification	713	$ 1,381	2,581	$ 3,681
Financial effects of modifications
Charge-offs	$ 46	$ 13	$ 102	$ 53
Weighted average interest rate reduction	9.32%	7.88%	8.52%	7.90%
Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 325	$ 940	$ 1,327	$ 2,173
Financial effects of modifications
Charge-offs	$ 39	$ 3	$ 78	$ 23
Weighted average interest rate reduction	0.75%	1.02%	0.51%	0.94%
Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 231	$ 805	$ 1,010	$ 1,759
Financial effects of modifications
Charge-offs	$ 39	$ 3	$ 78	$ 23
Weighted average interest rate reduction	0.67%	1.30%	0.47%	0.95%
Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 76	$ 98	$ 270	$ 334
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.91%	0.98%	0.59%	0.94%
Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 16	$ 15	$ 45	$ 19
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	1.00%	0.00%	1.00%	0.00%
Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 2	$ 22	$ 2	$ 61
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 388	$ 441	$ 1,254	$ 1,508
Loan restructuring, trial modifications, amount	6	(20)	11	12
Financial effects of modifications
Charge-offs	$ 7	$ 10	$ 24	$ 30
Weighted average interest rate reduction	10.23%	8.98%	10.19%	8.77%
Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 227	$ 287	$ 770	$ 1,007
Financial effects of modifications
Charge-offs	$ 0	$ 1	$ 1	$ 4
Weighted average interest rate reduction	2.11%	2.27%	1.96%	2.31%
Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 28	$ 44	$ 99	$ 125
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 2	$ 3
Weighted average interest rate reduction	2.49%	2.09%	2.38%	1.96%
Credit Card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 94	$ 84	$ 280	$ 253
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	12.78%	12.78%	13.11%	12.42%
Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 17	$ 30	$ 51	$ 66
Financial effects of modifications
Charge-offs	$ 7	$ 9	$ 21	$ 23
Weighted average interest rate reduction	5.30%	5.95%	4.84%	6.25%
Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 16	$ 16	$ 43	$ 45
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	8.38%	8.25%	7.92%	8.04%
Modification to principal [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 40	$ 67	$ 123	$ 186
Financial effects of modifications
Charge-offs	16	5	22	22
Modification to principal [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	13	0	26	3
Modification to principal [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	13	0	13	3
Modification to principal [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification to principal [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	13	0
Modification to principal [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification to principal [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	27	67	97	183
Loan restructuring, trial modifications, amount	0	0	0	0
Modification to principal [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	24	58	87	168
Modification to principal [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	1	2	4	5
Modification to principal [Member] | Credit Card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification to principal [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	7	6	10
Modification to principal [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification, interest rate reduction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	137	140	448	411
Modification, interest rate reduction [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	14	23	85	54
Modification, interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	9	3	54	17
Modification, interest rate reduction [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	4	20	30	37
Modification, interest rate reduction [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	1	0	1	0
Modification, interest rate reduction [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification, interest rate reduction [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	123	117	363	357
Loan restructuring, trial modifications, amount	0	0	0	0
Modification, interest rate reduction [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	4	4	9	22
Modification, interest rate reduction [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	8	11	30	31
Modification, interest rate reduction [Member] | Credit Card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	94	84	280	253
Modification, interest rate reduction [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	3	6	7	14
Modification, interest rate reduction [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	14	12	37	37
Modification, other concessions [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	536	1,174	2,010	3,084
Modification, other concessions [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	298	917	1,216	2,116
Modification, other concessions [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	209	802	943	1,739
Modification, other concessions [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	72	78	240	297
Modification, other concessions [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	15	15	31	19
Modification, other concessions [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	22	2	61
Modification, other concessions [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	238	257	794	968
Loan restructuring, trial modifications, amount	6	(20)	11	12
Modification, other concessions [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	199	225	674	817
Modification, other concessions [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	19	31	65	89
Modification, other concessions [Member] | Credit Card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification, other concessions [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	12	17	38	42
Modification, other concessions [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	4	6	8
Trial modifications [Member] | Total Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, troubled debt restructuring	123		123		$ 149
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Modification, recorded investment related to interest rate reduction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 150	$ 168	$ 495	$ 489
Modification, recorded investment related to interest rate reduction [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	14	23	85	54
Modification, recorded investment related to interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	9	3	54	17
Modification, recorded investment related to interest rate reduction [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	4	20	30	37
Modification, recorded investment related to interest rate reduction [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	1	0	1	0
Modification, recorded investment related to interest rate reduction [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Modification, recorded investment related to interest rate reduction [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	136	145	410	435
Loan restructuring, trial modifications, amount	0	0	0	0
Modification, recorded investment related to interest rate reduction [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	16	30	54	96
Modification, recorded investment related to interest rate reduction [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	9	13	32	35
Modification, recorded investment related to interest rate reduction [Member] | Credit Card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	94	84	280	253
Modification, recorded investment related to interest rate reduction [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	3	6	7	14
Modification, recorded investment related to interest rate reduction [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	14	12	37	37
Loans remodified [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 188	$ 545	$ 871	$ 1,400

Loans and Allowance for Cred_19

Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 78	$ 117	$ 247	$ 352
Total Commercial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	41	77	125	226
Commercial and industrial loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	24	42	72	135
Commercial real estate mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	5	35	38	75
Commercial real estate construction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	12	0	15	16
Total Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	37	40	122	126
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	8	11	32	44
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	2	3	11	10
Credit Card [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	23	20	65	57
Automobile [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	2	4	9	11
Other revolving credit and installment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 2	$ 2	$ 5	$ 4

Loans and Allowance for Cred_20

Loans and Allowance for Credit Losses, PCI Loans Outstanding (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
PCI loans [Abstract]
Loans	[1]	$ 954,915	$ 954,915	$ 953,110
Total Commercial [Member]
PCI loans [Abstract]
Loans		512,332	512,332	513,405
Total Consumer [Member]
PCI loans [Abstract]
Loans		442,583	442,583	439,705
Real estate 1-4 family first mortgage [Member]
PCI loans [Abstract]
Loans		290,604	290,604	285,065
Real estate 1-4 family junior lien mortgage [Member]
PCI loans [Abstract]
Loans		30,838	30,838	34,398
PCI [Member]
PCI loans [Abstract]
Loans		607	607	5,009
Finance receivables sold amount		510	4,000
Gain (loss) on sale of financing receivable		302	1,600
PCI [Member] | Total Commercial [Member]
PCI loans [Abstract]
Loans		0	0	4
PCI [Member] | Total Consumer [Member]
PCI loans [Abstract]
Loans		607	607	5,005
PCI [Member] | Real estate 1-4 family first mortgage [Member]
PCI loans [Abstract]
Loans		593	593	4,988
PCI [Member] | Real estate 1-4 family junior lien mortgage [Member]
PCI loans [Abstract]
Loans		14	14	17
PCI loans (unpaid principal balance) [Member]
PCI loans [Abstract]
Total PCI loans (unpaid principal balance)		$ 1,072	$ 1,072	$ 7,348
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Leasing Activity, Leasing Reven

Leasing Activity, Leasing Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Leases [Line Items]
Interest income on lease financing	$ 208		$ 655
Variable revenues on lease financing	23		73
Fixed revenues on operating leases	339		1,069
Variable revenues on operating leases	16		48
Lease income	402	$ 453	1,269	$ 1,351
Total leasing revenue	610		1,924
Equipment leased to other party [Member]
Leases [Line Items]
Other lease-related revenues	$ 24		$ 79

Leasing Activity Leasing Activi

Leasing Activity Leasing Activity, Investment in Lease Financing (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Investment in Lease Financing [Line Items]
Lease receivables	$ 17,921	$ 17,921
Residual asset values	4,244	4,244
Unearned income	(2,565)	(2,565)
Lease financing	19,600	19,600
Leasing Activity Disclosures Textual [Abstract]
Net investment in leveraged leases, lessor	2,000	2,000
Operating lease assets, lessor	9,027	9,027	$ 9,444
Assets Leased to Others [Member]
Leasing Activity Disclosures Textual [Abstract]
Operating lease assets, lessor	8,478	8,478	$ 9,036
Accumulated depreciation, Operating lease assets, lessor	3,200	3,200
Depreciation, Operating lease assets, lessor	$ 205	$ 653

Leasing Activity Leasing Acti_2

Leasing Activity Leasing Activity, Maturities of Lease Receivables (Details) $ in Millions	Sep. 30, 2019USD ($)
Direct financing and sales-type leases, Fiscal Year Maturity [Abstract]
Remainder of 2019, direct financing and sales-type leases	$ 1,454
2020, direct financing and sales-type leases	5,656
2021, direct financing and sales-type leases	4,557
2022, direct financing and sales-type leases	2,532
2023, direct financing and sales-type leases	1,391
Thereafter, direct financing and sales-type leases	2,331
Total lease receivable, direct financing and sales-type leases	17,921
Operating leases, Fiscal Year Maturity [Abstract]
Remainder of 2019, operating leases	258
2020, operating leases	864
2021, operating leases	609
2022, operating leases	425
2023, operating leases	285
Thereafter, operating leases	626
Total lease receivables, operating leases	$ 3,067

Leasing Activity Leasing Acti_3

Leasing Activity Leasing Activity, Operating Lease Right of Use (ROU) Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
ROU assets	$ 4,856	$ 0
Lease liabilities	$ 5,383

Leasing Activity Leasing Acti_4

Leasing Activity Leasing Activity, Lease Costs (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Fixed lease expense - operating leases	$ 302	$ 890
Variable lease expense	81	234
Other	(40)	(57)
Total lease costs	$ 343	$ 1,067

Leasing Activity Leasing Acti_5

Leasing Activity Leasing Activity, Lease Payments on Operating Leases Prior to Adoption of ASU 2016-02 - Leases (Details) $ in Millions	Dec. 31, 2018USD ($)
Leases [Abstract]
2019, operating leases, prior to adoption of ASU 2016-02	$ 1,174
2020, operating leases, prior to adoption of ASU 2016-02	1,056
2021, operating leases, prior to adoption of ASU 2016-02	880
2022, operating leases, prior to adoption of ASU 2016-02	713
2023, operating leases, prior to adoption of ASU 2016-02	577
Thereafter, operating leases, prior to adoption of ASU 2016-02	1,654
Total, operating leases, prior to adoption of ASU 2016-02	$ 6,054

Leasing Activity Leasing Acti_6

Leasing Activity Leasing Activity, Lease Payments on Operating Leases Subsequent to Adoption of ASU 2016-02 - Leases (Details) $ in Millions	9 Months Ended
	Sep. 30, 2019USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2019, operating leases, subsequent to adoption of ASU 2016-02	$ 128
2020, operating leases, subsequent to adoption of ASU 2016-02	1,155
2021, operating leases, subsequent to adoption of ASU 2016-02	1,004
2022, operating leases, subsequent to adoption of ASU 2016-02	854
2023, operating leases, subsequent to adoption of ASU 2016-02	713
Thereafter, operating leases, subsequent to adoption of ASU 2016-02	2,251
Total lease payments, operating leases, subsequent to adoption of ASU 2016-02	6,105
Less: imputed interest	722
Total operating lease liability	$ 5,383
Weighted average remaining lease term (in years)	7 years 3 months 18 days
Weighted average discount rate	3.20%
Leasing Activity Disclosures Textual [Abstract]
Operating lease, term of contract	15 years
Operating lease, term of contract, longest expiration year	2105
Operating lease, not yet commenced, lease commitment amount	$ 106
Operating lease, not yet commenced, earliest year of commencement	2020
Minimum [Member]
Leasing Activity Disclosures Textual [Abstract]
Operating lease, lease not yet commenced, term of contract	1 year
Maximum [Member]
Leasing Activity Disclosures Textual [Abstract]
Operating lease, lease not yet commenced, term of contract	11 years

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Equity Securities [Line Items]
Equity securities, carried at fair value		$ 38,368		$ 38,368		$ 29,556
Equity securities (includes $38,368 and $29,556 carried at fair value) (1)	[1]	63,884		63,884		55,148
Equity Securities Disclosures Textual [Abstract]
Securities held as economic hedges related to deferred compensation plan obligations		3,500		3,500		3,200
Federal home loan bank stock and federal reserve bank stock		5,000		5,000		5,600
Loss from Affordable Housing Projects, Equity Method Investments		304	$ 283	875	$ 850
Affordable Housing Tax Credits and Other Tax Benefits, Amount		362	352	1,100	1,100
Affordable Housing Tax Credits, Amount		286	$ 282	$ 891	$ 853
Affordable Housing Tax Credits Commitment, Payment Period				3 years
Qualified Affordable Housing Project Investments, Commitment		3,800		$ 3,800		3,600
Held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		24,436		24,436		19,449
Not held for trading [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		13,932		13,932		10,107
Equity securities (includes $38,368 and $29,556 carried at fair value) (1)		39,448		39,448		35,699
Not held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		6,639		6,639		4,513
Not held for trading [Member] | Nonmarketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		7,293		7,293		5,594
Not held for trading [Member] | Equity Method Investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		18,026		18,026		18,215
Not held for trading [Member] | Low income housing tax credit equity method investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		11,068		11,068		10,999
Not held for trading [Member] | Private equity funds [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		3,425		3,425		3,832
Not held for trading [Member] | Tax advantaged renewable energy [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		3,143		3,143		3,073
Not held for trading [Member] | New market tax credit and other [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		390		390		311
Not held for trading [Member] | Investment in federal reserve bank stock and other at cost [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		5,021		5,021		5,643
Not held for trading [Member] | Other security investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		$ 2,469		$ 2,469		$ 1,734
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Equity Securities, Net Gains (L

Equity Securities, Net Gains (Losses) Not Held for Trading (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net Gains (Losses) from Equity Securities [Line Items]
Total net gains from equity securities	[1]	$ 956	$ 416	$ 2,392	$ 1,494
Not designated as hedging instrument [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) recognized related to derivatives not designated as hedging instruments		(226)	(1,749)	(3,854)	(1,204)
Not designated as hedging instrument [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) recognized related to derivatives not designated as hedging instruments		(1,375)	(719)	(2,918)	(1,317)
Economic hedges [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) recognized related to derivatives not designated as hedging instruments		(393)	(964)	(96)	(2,010)
Economic hedges [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) recognized related to derivatives not designated as hedging instruments		(1,375)	(719)	(2,918)	(1,317)
Equity securities [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from equity securities carried at fair value		1,593	925	3,902	1,664
Marketable equity securities [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from equity securities carried at fair value		116	103	757	139
Nonmarketable equity securities [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from equity securities carried at fair value		1,477	822	3,145	1,525
Net gain (loss) from nonmarketable equity securities not carried at fair value		738	210	1,408	1,147
Nonmarketable equity securities [Member] | Impairment write-downs
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from nonmarketable equity securities not carried at fair value		(43)	(45)	(110)	(302)
Nonmarketable equity securities [Member] | Measurement alternative observable transactions [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from nonmarketable equity securities not carried at fair value		158	51	489	314
Nonmarketable equity securities [Member] | Realized gains on sale [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from nonmarketable equity securities not carried at fair value		623	204	1,029	1,101
Nonmarketable equity securities [Member] | Other [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from nonmarketable equity securities not carried at fair value		$ 0	$ 0	$ 0	$ 34
[1]	(2) Includes OTTI losses of $43 million and $45 million for third quarter 2019 and 2018 , respectively, and $110 million and $302 million for the first nine months of 2019 and 2018 , respectively.

Equity Securities, Gains (Losse

Equity Securities, Gains (Losses) Measurement Alternative (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Net Gains (Losses) from Measurement Alternative Equity Securities
Total net gains recognized during the period	[1]	$ 956	$ 416	$ 2,392	$ 1,494
Measurement alternative [Member] | Nonmarketable equity securities [Member]
Net Gains (Losses) from Measurement Alternative Equity Securities
Gross unrealized gains due to observable price changes		158	68	500	339
Gross unrealized losses due to observable price changes		0	(17)	(11)	(25)
Impairment write-downs		(20)	(6)	(53)	(18)
Realized net gains from sale		36	186	161	277
Total net gains recognized during the period		174	$ 231	597	$ 573
Measurement Alternative Cumulative Gains (Losses)
Cumulative gross unrealized gains due to observable price changes		889		889		$ 415
Cumulative gross unrealized losses due to observable price changes		(36)		(36)		(25)
Cumulative impairment write-downs		$ (71)		$ (71)		$ (33)
[1]	(2) Includes OTTI losses of $43 million and $45 million for third quarter 2019 and 2018 , respectively, and $110 million and $302 million for the first nine months of 2019 and 2018 , respectively.

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Components of Other Assets [Line Items]
Corporate/bank-owned life insurance	$ 19,983	$ 19,751
Accounts receivable (1)	40,246	34,281
Interest receivable	5,962	6,084
Net carrying value	1,848	1,988
Other foreclosed assets	201	134
Operating lease ROU assets (lessee)	4,856	0
Due from customers on acceptances	284	258
Other	9,027	9,444
Other assets	89,724	79,850
Assets Leased to Others [Member]
Components of Other Assets [Line Items]
Other	8,478	9,036
Non-government insured/guaranteed [Member]
Components of Other Assets [Line Items]
Residential real estate	177	229
Government insured or guaranteed [Member]
Components of Other Assets [Line Items]
Residential real estate	59	88
Customer relationship and other amortized intangibles [Member]
Components of Other Assets [Line Items]
Net carrying value	$ 451	$ 545

Securitizations and Variable _3

Securitizations and Variable Interest Entities, Balance Sheet Transactions with VIEs (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities
Cash		$ 22,401	$ 23,551
Interest-earning deposits with banks		126,330	149,736
Trading debt securities		79,113	69,989
Available-for-sale, at fair value		271,236	269,912
Held-to-maturity, at cost (fair value $156,279 and $142,115)		153,179	144,788
Loans	[1]	954,915	953,110
Mortgage servicing rights		11,072	14,649
Derivative assets		14,680	10,770
Equity securities	[1]	63,884	55,148
Other assets		89,724	79,850
Total assets	[2]	1,943,950	1,895,883
Short-term borrowings		123,908	105,787
Derivative liabilities		9,948	8,499
Accrued expenses and other liabilities		76,532	69,317
Long-term debt		230,651	229,044
Total liabilities	[3]	1,749,534	1,698,817
Noncontrolling interests		1,112	900
VIEs that we consolidate recourse [member]
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities
Total liabilities		0	0
VIEs that we do not consolidate [Member]
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities
Cash		0	0
Interest-earning deposits with banks		0	0
Trading debt securities		1,915	2,110
Available-for-sale, at fair value		1,696	2,686
Held-to-maturity, at cost (fair value $156,279 and $142,115)		619	510
Loans		1,406	1,433
Mortgage servicing rights		11,381	14,761
Derivative assets		178	53
Equity securities		11,117	11,041
Other assets		0	0
Total assets		28,312	32,594
Short-term borrowings		0	0
Derivative liabilities		1	26
Accrued expenses and other liabilities		196	231
Long-term debt		3,822	3,870
Total liabilities		4,019	4,127
Noncontrolling interests		0	0
Net assets		24,293	28,467
VIEs that we consolidate [Member]
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities
Cash		10	139
Interest-earning deposits with banks		118	8
Trading debt securities		61	45
Available-for-sale, at fair value		0	0
Held-to-maturity, at cost (fair value $156,279 and $142,115)		0	0
Loans		13,134	13,564
Mortgage servicing rights		0	0
Derivative assets		0	0
Equity securities		100	85
Other assets		214	221
Total assets		13,637	14,062
Short-term borrowings		0	0
Derivative liabilities		0	0
Accrued expenses and other liabilities		202	191
Long-term debt		722	816
Total liabilities		924	1,007
Noncontrolling interests		39	34
Net assets		12,674	13,021
Transfers that we account for as secured borrowings [Member]
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities
Cash		0	0
Interest-earning deposits with banks		0	0
Trading debt securities		201	200
Available-for-sale, at fair value		0	317
Held-to-maturity, at cost (fair value $156,279 and $142,115)		0	0
Loans		84	94
Mortgage servicing rights		0	0
Derivative assets		0	0
Equity securities		0	0
Other assets		3	6
Total assets		288	617
Short-term borrowings		200	493
Derivative liabilities		0	0
Accrued expenses and other liabilities		1	8
Long-term debt		83	93
Total liabilities		284	594
Noncontrolling interests		0	0
Net assets		4	23
Total VIE [Member]
Variable Interest Entity Consolidated Carrying Amount Assets and Liabilities
Cash		10	139
Interest-earning deposits with banks		118	8
Trading debt securities		2,177	2,355
Available-for-sale, at fair value		1,696	3,003
Held-to-maturity, at cost (fair value $156,279 and $142,115)		619	510
Loans		14,624	15,091
Mortgage servicing rights		11,381	14,761
Derivative assets		178	53
Equity securities		11,217	11,126
Other assets		217	227
Total assets		42,237	47,273
Short-term borrowings		200	493
Derivative liabilities		1	26
Accrued expenses and other liabilities		399	430
Long-term debt		4,627	4,779
Total liabilities		5,227	5,728
Noncontrolling interests		39	34
Net assets		$ 36,971	$ 41,511
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.
[2]	(2) Our consolidated assets at September 30, 2019 , and December 31, 2018 , 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, $10 million and $139 million ; Interest-earning deposits with banks, $118 million and $8 million ; Debt securities, $61 million and $45 million ; Net loans, $13.1 billion and $13.6 billion ; Equity securities, $100 million and $85 million ; Other assets, $214 million and $221 million ; and Total assets, $13.6 billion and $14.1 billion , respectively.
[3]	(3) Our consolidated liabilities at September 30, 2019 , and December 31, 2018 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Accrued expenses and other liabilities, $202 million and $191 million ; Long-term debt, $722 million and $816 million ; and Total liabilities, $924 million and $1.0 billion , respectively.

Securitizations and Variable _4

Securitizations and Variable Interest Entities, Unconsolidated VIEs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Variable Interest Entity [Line Items]
Total VIE assets	$ 1,318,396		$ 1,318,396		$ 1,374,802
Securitizations and Variable Interest Entities Textual [Abstract]
Carrying value of delinquent loans eligible for repurchase	578		578		1,200
Principal amount that would be payable to securitization vehicles	578		578		1,200
Equity interests [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	11,100		11,100		11,000
Trust preferred securities [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(2,200)		(2,200)		(2,000)
Trust preferred securities [Member] | Preferred stock [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Carrying value - equity	2,500		2,500		2,500
Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Total VIE assets	1,112,618		1,112,618		1,172,833
Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Total VIE assets	7,869		7,869		10,596
Commercial [Member]
Variable Interest Entity [Line Items]
Total VIE assets	157,940		157,940		153,350
Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Total VIE assets	619		619		659
Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Total VIE assets	218		218		304
Tax credit structures [Member]
Variable Interest Entity [Line Items]
Total VIE assets	37,354		37,354		35,185
Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Total VIE assets	132		132		2
Investment funds [Member]
Variable Interest Entity [Line Items]
Total VIE assets	210		210		185
Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Total VIE assets	1,436		1,436		1,688
VIEs that we do not consolidate [Member] | Waived fees [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Financial support provided to a nonconsolidated legal entity	10	$ 10	30	$ 35
Debt and equity interests [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	16,753		16,753		17,780
Maximum exposure to loss	16,753		16,753		17,780
Debt and equity interests [Member] | Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	2,043		2,043		2,377
Maximum exposure to loss	2,043		2,043		2,377
Debt and equity interests [Member] | Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	13		13		453
Maximum exposure to loss	13		13		453
Debt and equity interests [Member] | Commercial [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	2,109		2,109		2,409
Maximum exposure to loss	2,109		2,109		2,409
Debt and equity interests [Member] | Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Debt and equity interests [Member] | Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	117		117		205
Maximum exposure to loss	117		117		205
Debt and equity interests [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	12,356		12,356		12,087
Maximum exposure to loss	12,356		12,356		12,087
Debt and equity interests [Member] | Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	1		1		0
Maximum exposure to loss	1		1		0
Debt and equity interests [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	49		49		42
Maximum exposure to loss	49		49		42
Debt and equity interests [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	65		65		207
Maximum exposure to loss	65		65		207
Servicing assets [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	11,381		11,381		14,761
Maximum exposure to loss	11,381		11,381		14,761
Servicing assets [Member] | Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	10,469		10,469		13,811
Maximum exposure to loss	10,469		10,469		13,811
Servicing assets [Member] | Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	47		47		57
Maximum exposure to loss	47		47		57
Servicing assets [Member] | Commercial [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	865		865		893
Maximum exposure to loss	865		865		893
Servicing assets [Member] | Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Servicing assets [Member] | Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Servicing assets [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Servicing assets [Member] | Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Servicing assets [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Servicing assets [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	177		177		27
Maximum exposure to loss	180		180		78
Derivative [Member] | Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member] | Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member] | Commercial [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	110		110		(22)
Maximum exposure to loss	110		110		28
Derivative [Member] | Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	9		9		5
Maximum exposure to loss	9		9		5
Derivative [Member] | Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member] | Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Derivative [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	58		58		44
Maximum exposure to loss	61		61		45
Other commitments and guarantees [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(4,018)		(4,018)		(4,101)
Maximum exposure to loss	14,344		14,344		14,415
Other commitments and guarantees [Member] | Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(134)		(134)		(171)
Maximum exposure to loss	960		960		1,183
Other commitments and guarantees [Member] | Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Other commitments and guarantees [Member] | Commercial [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(42)		(42)		(40)
Maximum exposure to loss	11,884		11,884		11,563
Other commitments and guarantees [Member] | Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(20)		(20)		(20)
Maximum exposure to loss	20		20		20
Other commitments and guarantees [Member] | Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	71		71		71
Other commitments and guarantees [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(3,822)		(3,822)		(3,870)
Maximum exposure to loss	1,252		1,252		1,420
Other commitments and guarantees [Member] | Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Other commitments and guarantees [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	0		0		0
Other commitments and guarantees [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	0		0		0
Maximum exposure to loss	157		157		158
Net assets [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	24,293		24,293		28,467
Net assets [Member] | Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	12,378		12,378		16,017
Net assets [Member] | Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	60		60		510
Net assets [Member] | Commercial [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	3,042		3,042		3,240
Net assets [Member] | Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	(11)		(11)		(15)
Net assets [Member] | Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	117		117		205
Net assets [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	8,534		8,534		8,217
Net assets [Member] | Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	1		1		0
Net assets [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	49		49		42
Net assets [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Carrying value asset (liability)	123		123		251
Total exposure [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	42,658		42,658		47,034
Total exposure [Member] | Conforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	13,472		13,472		17,371
Total exposure [Member] | Other/Nonconforming Residential Mortgage Loan Securitization [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	60		60		510
Total exposure [Member] | Commercial [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	14,968		14,968		14,893
Total exposure [Member] | Collateralized debt obligations debt securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	29		29		25
Total exposure [Member] | Asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	188		188		276
Total exposure [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	13,608		13,608		13,507
Total exposure [Member] | Collateralized loan obligations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	1		1		0
Total exposure [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	49		49		42
Total exposure [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	$ 283		$ 283		$ 410

Securitizations and Variable _5

Securitizations and Variable Interest Entities, Cash Flows From Sales and Securitization Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Securitizations and Variable Interest Entities Textual [Abstract]
Amount paid to repurchase loans from securitization vehicles	$ 1,400	$ 1,500	$ 4,600	$ 6,200
Net gain from sale of assets securitizations	98	51	278	163
Mortgage loans [Member]
Cash Flow Securitizations [Abstract]
Proceeds from securitizations and whole loan sales	52,274	53,792	128,478	156,369
Fees from servicing rights retained	793	812	2,359	2,487
Cash flows from other interests held	131	221	375	574
Servicing advances, net of repayments	(73)	(24)	(166)	(67)
Mortgage loans [Member] | Non-agency securitizations [Member]
Cash Flow Securitizations [Abstract]
Repurchases of assets/loss reimbursements	1,369	2	1,370	4
Mortgage loans [Member] | Agency securitizations [Member]
Cash Flow Securitizations [Abstract]
Repurchases of assets/loss reimbursements	26	17	70	69
Residential mortgage [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Amount transferred related to mortgages to unconsolidated VIE	48,400	49,600	119,200	144,600
Commercial loan [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Net gain from sale of assets securitizations	72	67	193	196
Amount transferred related to mortgages to unconsolidated VIE	$ 4,400	$ 4,100	10,500	11,600
Fair value, inputs, level 2 [Member] | Residential mortgage [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Securities, at fair value			7,700	2,600
Fair value, inputs, level 2 [Member] | Commercial loan [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Securities, at fair value			0	47
Fair value, inputs, level 3 [Member] | Residential mortgage [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Amount of servicing asset at fair value			1,200	1,500
Amount of liability for repurchase reserves at fair value			13	12
Fair value, inputs, level 3 [Member] | Commercial loan [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Amount of servicing asset at fair value			$ 92	$ 106

Securitizations and Variable _6

Securitizations and Variable Interest Entities, Residential Mortgage Servicing Rights (Details) - Residential mortgage servicing rights [Member] - $ / loan	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Prepayment speed	13.20%	11.20%	13.30%	10.50%
Discount rate	7.40%	7.60%	7.60%	7.40%
Cost to service ($ per loan)	101	128	106	130

Securitizations and Variable _7

Securitizations and Variable Interest Entities, Retained Interests from Unconsolidated VIEs (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019USD ($)$ / loan	Dec. 31, 2018USD ($)$ / loan
Commercial 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	$ 1,800	$ 2,300
Securitizations and Variable Interest Entities Textual [Abstract]
Percentage of adverse change in interest rate	25.00%	25.00%
Decrease in fair value from 25% adverse change in interest rate	$ 200	$ 320
Residential mortgage servicing rights [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	$ 11,072	$ 14,649
Expected weighted-average life (in years)	5 years 2 months 12 days	6 years 6 months
Key economic assumptions:
Prepayment speed assumption	12.40%	9.90%
Decrease in fair value from:
10% adverse change	$ 521	$ 530
25% adverse change	$ 1,222	$ 1,301
Discount rate assumption	6.90%	8.10%
Decrease in fair value from:
100 basis point increase	$ 437	$ 615
200 basis point increase	$ 838	$ 1,176
Cost to service assumption ($ per loan) | $ / loan	102	106
Decrease in fair value from:
10% adverse change	$ 269	$ 316
25% adverse change	672	787
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	$ 7	$ 16
Expected weighted-average life (in years)	3 years 4 months 24 days	3 years 7 months 6 days
Key economic assumptions:
Prepayment speed assumption	18.00%	17.70%
Decrease in fair value from:
10% adverse change	$ 0	$ 1
25% adverse change	$ 1	$ 1
Discount rate assumption	14.10%	14.50%
Decrease in fair value from:
100 basis point increase	$ 0	$ 0
200 basis point increase	0	1
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	$ 752	$ 668
Expected weighted-average life (in years)	7 years 2 months 12 days	7 years
Decrease in fair value from:
Discount rate assumption	4.00%	4.30%
Decrease in fair value from:
100 basis point increase	$ 44	$ 37
200 basis point increase	$ 84	$ 72
Decrease in fair value from:
Credit loss assumption	3.80%	5.10%
Decrease in fair value from:
10% higher losses	$ 2	$ 2
25% higher losses	5	5
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	$ 304	$ 309
Expected weighted-average life (in years)	5 years	5 years 8 months 12 days
Decrease in fair value from:
Discount rate assumption	2.70%	3.70%
Decrease in fair value from:
100 basis point increase	$ 13	$ 14
200 basis point increase	$ 25	$ 28
Decrease in fair value from:
Credit loss assumption	0.00%	0.00%
Decrease in fair value from:
10% higher losses	$ 0	$ 0
25% higher losses	$ 0	$ 0

Securitizations and Variable _8

Securitizations and Variable Interest Entities, Off-Balance Sheet Loans Sold or Securitized (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	$ 1,133,273		$ 1,202,301
Delinquent loans and foreclosed assets (1)	7,750		9,955
Net charge-offs (3)	289	$ 612
Government insured or guaranteed [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	1,100,000		1,100,000
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	280		442
Delinquent Loans	5,200		6,400
Total Commercial [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	108,091		105,173
Delinquent loans and foreclosed assets (1)	904		1,008
Net charge-offs (3)	109	244
Commercial real estate mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	108,091		105,173
Delinquent loans and foreclosed assets (1)	904		1,008
Net charge-offs (3)	109	244
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	547		675
Total Consumer [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	1,025,182		1,097,128
Delinquent loans and foreclosed assets (1)	6,846		8,947
Net charge-offs (3)	180	368
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	398		582
Real estate 1-4 family first mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	1,025,168		1,097,128
Delinquent loans and foreclosed assets (1)	6,845		8,947
Net charge-offs (3)	180	368
Real estate 1-4 family junior lien mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	14		0
Delinquent loans and foreclosed assets (1)	1		$ 0
Net charge-offs (3)	$ 0	$ 0

Securitizations and Variable _9

Securitizations and Variable Interest Entities, Transactions with Consolidated VIEs and Secured Borrowings (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Assets	[1]	$ 1,943,950	$ 1,895,883
Liabilities	[2]	(1,749,534)	(1,698,817)
Noncontrolling interests		(1,112)	(900)
Total secured borrowings [Member]
Variable Interest Entity [Line Items]
Total VIE assets		284	722
Total secured borrowings [Member] | Municipal tender option bond securitizations [Member]
Variable Interest Entity [Line Items]
Total VIE assets		200	627
Total secured borrowings [Member] | Residential mortgage securitizations [Member]
Variable Interest Entity [Line Items]
Total VIE assets		84	95
Consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Total VIE assets		13,827	14,288
Assets		13,637	14,062
Liabilities		(924)	(1,007)
Noncontrolling interests		(39)	(34)
Net assets		12,674	13,021
Consolidated VIEs [Member] | Commercial and Industrial Loans and Leases [Member]
Variable Interest Entity [Line Items]
Total VIE assets		7,426	8,215
Consolidated VIEs [Member] | Nonconforming residential mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Total VIE assets		1,385	1,947
Consolidated VIEs [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Total VIE assets		4,841	3,957
Consolidated VIEs [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Total VIE assets		170	155
Consolidated VIEs [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Total VIE assets		5	14
Total secured borrowings and consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Total VIE assets		14,111	15,010
Carrying amount [Member] | Total secured borrowings [Member]
Variable Interest Entity [Line Items]
Assets		288	617
Liabilities		(284)	(594)
Noncontrolling interests		0	0
Net assets		4	23
Carrying amount [Member] | Total secured borrowings [Member] | Municipal tender option bond securitizations [Member]
Variable Interest Entity [Line Items]
Assets		204	523
Liabilities		(201)	(501)
Noncontrolling interests		0	0
Net assets		3	22
Carrying amount [Member] | Total secured borrowings [Member] | Residential mortgage securitizations [Member]
Variable Interest Entity [Line Items]
Assets		84	94
Liabilities		(83)	(93)
Noncontrolling interests		0	0
Net assets		1	1
Carrying amount [Member] | Consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Assets		13,637	14,062
Liabilities		(924)	(1,007)
Noncontrolling interests		(39)	(34)
Net assets		12,674	13,021
Carrying amount [Member] | Consolidated VIEs [Member] | Commercial and Industrial Loans and Leases [Member]
Variable Interest Entity [Line Items]
Assets		7,411	8,204
Liabilities		(496)	(477)
Noncontrolling interests		(15)	(14)
Net assets		6,900	7,713
Carrying amount [Member] | Consolidated VIEs [Member] | Nonconforming residential mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Assets		1,210	1,732
Liabilities		(425)	(521)
Noncontrolling interests		0	0
Net assets		785	1,211
Carrying amount [Member] | Consolidated VIEs [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Assets		4,841	3,957
Liabilities		0	0
Noncontrolling interests		0	0
Net assets		4,841	3,957
Carrying amount [Member] | Consolidated VIEs [Member] | Investment funds [Member]
Variable Interest Entity [Line Items]
Assets		170	155
Liabilities		(2)	(5)
Noncontrolling interests		(20)	(15)
Net assets		148	135
Carrying amount [Member] | Consolidated VIEs [Member] | Other securitizations and transactions [Member]
Variable Interest Entity [Line Items]
Assets		5	14
Liabilities		(1)	(4)
Noncontrolling interests		(4)	(5)
Net assets		0	5
Carrying amount [Member] | Total secured borrowings and consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Assets		13,925	14,679
Liabilities		(1,208)	(1,601)
Noncontrolling interests		(39)	(34)
Net assets		$ 12,678	$ 13,044
[1]	(2) Our consolidated assets at September 30, 2019 , and December 31, 2018 , 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, $10 million and $139 million ; Interest-earning deposits with banks, $118 million and $8 million ; Debt securities, $61 million and $45 million ; Net loans, $13.1 billion and $13.6 billion ; Equity securities, $100 million and $85 million ; Other assets, $214 million and $221 million ; and Total assets, $13.6 billion and $14.1 billion , respectively.
[2]	(3) Our consolidated liabilities at September 30, 2019 , and December 31, 2018 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Accrued expenses and other liabilities, $202 million and $191 million ; Long-term debt, $722 million and $816 million ; and Total liabilities, $924 million and $1.0 billion , respectively.

Mortgage Banking Activities, An

Mortgage Banking Activities, Analysis of Changes in Fair Value MSRs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Changes in MSRs measured at fair value
Fair value, beginning of period			$ 14,649
Changes in fair value:
Net changes in valuation model inputs or assumptions	$ (962)	$ 531	(2,931)	$ 2,206
Changes due to collection/realization of expected cash flows over time	(596)	(462)	(1,639)	(1,405)
Total changes in fair value	(1,558)	69	(4,570)	801
Fair value, end of period	11,072		11,072
Carried at fair value [Member]
Changes in MSRs measured at fair value
Fair value, beginning of period	12,096	15,411	14,649	13,625
Servicing from securitizations or asset transfers (1)	538	502	1,279	1,561
Sales and other (2)	(4)	(2)	(286)	(7)
Net additions	534	500	993	1,554
Changes in fair value:
Net changes in valuation model inputs or assumptions	(962)	531	(2,931)	2,206
Changes due to collection/realization of expected cash flows over time	(596)	(462)	(1,639)	(1,405)
Total changes in fair value	(1,558)	69	(4,570)	801
Fair value, end of period	11,072	15,980	11,072	15,980
Carried at fair value [Member] | Mortgage interest rates [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	(718)	582	(2,811)	2,211
Carried at fair value [Member] | Servicing and foreclosure costs [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	13	(9)	3	55
Carried at fair value [Member] | Discount rates [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	188	(9)	179	(9)
Carried at fair value [Member] | Prepayment estimates and other [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	$ (445)	$ (33)	$ (302)	$ (51)

Mortgage Banking Activities, _2

Mortgage Banking Activities, Analysis of Changes in Amortized MSRs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Changes in amortized MSRs
Amortization	$ (68)	$ (68)	$ (203)	$ (198)
Amortized [Member]
Changes in amortized MSRs
Balance, beginning of period	1,407	1,407	1,443	1,424
Purchases	25	42	65	82
Servicing from securitizations or asset transfers	33	33	92	106
Amortization	(68)	(68)	(203)	(198)
Balance, end of period	1,397	1,414	1,397	1,414
Fair value of amortized MSRs:
Beginning of period	1,897	2,309	2,288	2,025
End of period	1,813	2,389	1,813	2,389
Commercial mortgage servicing [Member] | Amortized [Member]
Mortgage Banking Activities (Textual) [Abstract]
Valuation allowance	$ 0	$ 0	$ 0	$ 0

Mortgage Banking Activities, Ma

Mortgage Banking Activities, Managed Servicing Portfolio (Details) - USD ($) $ in Billions	Sep. 30, 2019	Dec. 31, 2018
Components of Managed Servicing Portfolio [Abstract]
Serviced for others	$ 1,634	$ 1,707
Total managed servicing portfolio	$ 2,114	$ 2,175
Ratio of MSRs to related loans serviced for others	0.76%	0.94%
Residential mortgage servicing rights [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced for others	$ 1,083	$ 1,164
Owned loans serviced (1)	346	334
Subserviced for others	3	4
Total managed servicing portfolio	1,432	1,502
Commercial mortgage servicing [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced for others	551	543
Owned loans serviced (1)	122	121
Subserviced for others	9	9
Total managed servicing portfolio	$ 682	$ 673

Mortgage Banking Activities, Mo

Mortgage Banking Activities, Mortgage Banking Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Servicing fees:
Contractually specified servicing fees	$ 854	$ 880	$ 2,540	$ 2,697
Late charges	34	40	97	126
Ancillary fees	36	49	112	136
Unreimbursed direct servicing costs	(118)	(79)	(272)	(258)
Net servicing fees	806	890	2,477	2,701
Changes in fair value of MSRs carried at fair value:
Due to changes in valuation model inputs or assumptions	(962)	531	(2,931)	2,206
Changes due to collection/realization of expected cash flows over time	(596)	(462)	(1,639)	(1,405)
Total changes in fair value of MSRs carried at fair value	(1,558)	69	(4,570)	801
Amortization	(68)	(68)	(203)	(198)
Net derivative gains (losses) from economic hedges related to mortgage servicing activities	678	(501)	2,795	(2,040)
Total servicing income, net	(142)	390	499	1,264
Net gains on mortgage loan origination/sales activities (4)	608	456	1,433	1,286
Total mortgage banking noninterest income	466	846	1,932	2,550
Market-related valuation changes to MSRs, net of hedge results	(284)	30	(136)	166
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	$ 58	$ 167	$ (376)	$ 926

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Amortized intangible assets:
Gross carrying value	$ 8,255	$ 20,989
Accumulated amortization	(6,407)	(19,001)
Net carrying value	1,848	1,988
Unamortized intangible assets:
Mortgage servicing rights	11,072	14,649
Goodwill	26,388	26,418	$ 26,425	$ 26,587
Trademark	14	14
MSRs [Member]
Amortized intangible assets:
Gross carrying value	4,318	4,161
Accumulated amortization	(2,921)	(2,718)
Net carrying value	1,397	1,443
Core deposit intangibles [Member]
Amortized intangible assets:
Gross carrying value	0	12,834
Accumulated amortization	0	(12,834)
Net carrying value	0	0
Customer relationship and other intangibles [Member]
Amortized intangible assets:
Gross carrying value	3,937	3,994
Accumulated amortization	(3,486)	(3,449)
Net carrying value	$ 451	$ 545

Intangible Assets, Amortization

Intangible Assets, Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Nine months ended September 30, 2019 (actual)	$ 27	$ 264	$ 82	$ 794
Estimate for the remainder of 2019	94		94
Estimate for year ended December 31,
2020	346		346
2021	297		297
2022	261		261
2023	224		224
2024	189		189
Finite lived intangible assets [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Nine months ended September 30, 2019 (actual)			290
Amortized MSRs [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Nine months ended September 30, 2019 (actual)			203
Estimate for the remainder of 2019	67		67
Estimate for year ended December 31,
2020	251		251
2021	216		216
2022	193		193
2023	165		165
2024	141		141
Customer relationship and other amortized intangibles [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Nine months ended September 30, 2019 (actual)			87
Estimate for the remainder of 2019	27		27
Estimate for year ended December 31,
2020	95		95
2021	81		81
2022	68		68
2023	59		59
2024	$ 48		$ 48

Intangible Assets, Allocation o

Intangible Assets, Allocation of Goodwill to Operating Segments (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Goodwill [Line Items]
Goodwill classified as held-for-sale in other assets	$ 25	$ 12
Goodwill [Roll Forward]
Goodwill, Beginning Balance	26,418	26,587
Reclassification of goodwill held for sale to other assets	(25)	(155)
Reduction in goodwill related to divested businesses and other	(7)	(7)
Foreign currency translation	2
Goodwill, Ending Balance	26,388	26,425
Community Banking [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	16,685	16,849
Reclassification of goodwill held for sale to other assets	0	(155)
Reduction in goodwill related to divested businesses and other	0	(6)
Foreign currency translation	0
Goodwill, Ending Balance	16,685	16,688
Wholesale Banking [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	8,450	8,455
Reclassification of goodwill held for sale to other assets	(25)	0
Reduction in goodwill related to divested businesses and other	0	(1)
Foreign currency translation	2
Goodwill, Ending Balance	8,427	8,454
Wealth and Investment Management [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,283	1,283
Reclassification of goodwill held for sale to other assets	0	0
Reduction in goodwill related to divested businesses and other	(7)	0
Foreign currency translation	0
Goodwill, Ending Balance	$ 1,276	$ 1,283

Guarantees, Pledged Assets an_3

Guarantees, Pledged Assets and Collateral (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		$ (171)	$ (90)
Maximum exposure to loss, expires in one year or less		28,639	32,872
Maximum exposure to loss, expires in one year through three years		18,859	19,053
Maximum exposure to loss, expires in three years through five years		7,032	7,674
Maximum exposure to loss, expires after five years		16,736	15,063
Maximum exposure to loss		71,266	74,662
Total assets (2)	[1]	1,943,950	1,895,883
Securities owned and pledged as collateral related to repurchase agreements not available to be repledged, Fair Value		3,600	4,400
Mortgages held for sale		12,000	7,400
Carrying value of delinquent loans eligible for repurchase		578	1,200
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Equity Securities, Trading		24,436	19,449
Total pledged assets, Trading		118,562	100,316
Total pledged assets		604,754	622,643
Related to non-trading activities [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Debt securities and other, non-trading activities		55,979	62,438
Mortgages held for sale and loans		425,280	453,894
Total pledged assets		481,259	516,332
Collateral Pledged [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Debt Securities, Trading		113,861	96,616
Equity Securities, Trading		9,634	9,695
Total pledged assets, Trading		123,495	106,311
Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		34,742	39,591
Written put options [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		(259)	(185)
Maximum exposure to loss, expires in one year or less		14,081	17,243
Maximum exposure to loss, expires in one year through three years		10,600	10,502
Maximum exposure to loss, expires in three years through five years		2,008	3,066
Maximum exposure to loss, expires after five years		373	400
Maximum exposure to loss		27,062	31,211
Written put options [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		16,953	21,732
Direct pay letters of credit (DPLCs) [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		6,500	7,500
Third Party Clearing Indemnifications [Member]
Guarantor Obligations [Line Items]
Third-party Clearing Customer Obligations		81	70
Collateral Provided to Third-party Clearing Agents		678	974
Standby Letters of Credit [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		35	40
Maximum exposure to loss, expires in one year or less		13,734	14,636
Maximum exposure to loss, expires in one year through three years		7,631	7,897
Maximum exposure to loss, expires in three years through five years		3,758	3,398
Maximum exposure to loss, expires after five years		471	497
Maximum exposure to loss		25,594	26,428
Standby Letters of Credit [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		7,960	8,027
Securities lending and other indemnifications [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		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		2	1
Maximum exposure to loss, expires in three years through five years		0	0
Maximum exposure to loss, expires after five years		758	1,044
Maximum exposure to loss		760	1,045
Securities lending and other indemnifications [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		2	1
Loans and MHFS sold with recourse [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		52	54
Maximum exposure to loss, expires in one year or less		109	104
Maximum exposure to loss, expires in one year through three years		626	653
Maximum exposure to loss, expires in three years through five years		1,263	1,207
Maximum exposure to loss, expires after five years		10,329	10,163
Maximum exposure to loss		12,327	12,127
Loans and MHFS sold with recourse [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		9,145	9,079
Factoring guarantee [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		0	0
Maximum exposure to loss, expires in one year or less		715	889
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		0	0
Maximum exposure to loss		715	889
Factoring guarantee [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		681	751
Other guarantees [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		1	1
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		3	3
Maximum exposure to loss, expires after five years		4,805	2,959
Maximum exposure to loss		4,808	2,962
Other guarantees [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		1	1
Trading assets and other [Member]
Guarantor Obligations [Line Items]
Securities owned and pledged as collateral available to be repledged, Fair Value		123,500	106,200
Trading assets and other [Member] | Collateral Pledged [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total pledged assets, Trading		51,600	45,500
Other Trading - Off-Balance Sheet [Member] | Collateral Pledged [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total pledged assets, Trading		71,900	60,800
Debt securities and other [Member] | Related to non-trading activities [Member]
Guarantor Obligations [Line Items]
Securities owned and pledged as collateral available to be repledged, Fair Value		39	68
Securities owned and pledged as collateral related to repurchase agreements not available to be repledged, carrying value		3,600	4,200
Securities owned and pledged as collateral related to repurchase agreements not available to be repledged, Fair Value		3,600	4,100
Consolidated VIEs [Member]
Guarantor Obligations [Line Items]
Total assets (2)		13,637	14,062
Secured Borrowing transactions excluded [Member]
Guarantor Obligations [Line Items]
Total assets (2)		$ 288	$ 617
[1]	(2) Our consolidated assets at September 30, 2019 , and December 31, 2018 , 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, $10 million and $139 million ; Interest-earning deposits with banks, $118 million and $8 million ; Debt securities, $61 million and $45 million ; Net loans, $13.1 billion and $13.6 billion ; Equity securities, $100 million and $85 million ; Other assets, $214 million and $221 million ; and Total assets, $13.6 billion and $14.1 billion , respectively.

Guarantees, Offsetting of Resal

Guarantees, Offsetting of Resale and Repurchase Agreements and Securities Borrowing and Lending (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities owned and pledged as collateral related to repurchase agreements not available to be repledged, Fair Value	$ 3,600	$ 4,400
Net amounts in consolidated balance sheet	122,651	97,404
Collateral received, fair value	145,900	123,100
Collateral received with the right to sell or repledge	145,900	123,100
Collateral sold or repledged	73,400	60,800
Collateral pledged, fair value	124,500	108,800
Resale and securities borrowing agreements
Gross amounts recognized	135,178	112,662
Gross amounts offset in consolidated balance sheet	(12,527)	(15,258)
Net amounts in consolidated balance sheet	122,651	97,404
Collateral not recognized in consolidated balance sheet	(121,864)	(96,734)
Net amount	787	670
Repurchase and securities lending agreements
Gross amounts recognized	121,758	106,248
Gross amounts offset in consolidated balance sheet	(12,527)	(15,258)
Net amounts in consolidated balance sheet	109,231	90,990
Collateral pledged but not netted in consolidated balance sheet	(108,981)	(90,798)
Net amount	250	192
Fed Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	103,000	80,100
Resale and securities borrowing agreements
Net amounts in consolidated balance sheet	103,000	80,100
Loans [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	19,700	17,300
Resale and securities borrowing agreements
Net amounts in consolidated balance sheet	$ 19,700	$ 17,300

Guarantees, Pledged Assets an_4

Guarantees, Pledged Assets and Collateral, and other Commitments Guarantees, Collateral Type and Contractual Maturities of Repurchase Agreements and Securities Lending Agreements (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	$ 114,029	$ 97,280
Securities Lending	7,729	8,968
Total Repurchases and Securities Lending	121,758	106,248
Securities of U.S. Treasury and federal agencies [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	42,632	38,408
Securities Lending	127	222
Securities of U.S. states and political subdivisions [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	22	159
Federal agencies [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	56,007	47,241
Securities Lending	0	2
Non-Agency Mortgage-backed Securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	1,794	1,875
Corporate debt securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	8,347	6,191
Securities Lending	273	389
Asset-backed securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	2,384	2,074
Equity securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	2,038	992
Securities Lending	7,322	8,349
Other [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	805	340
Securities Lending	7	6
Overnight/Continuous [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	101,997	86,574
Securities Lending	7,583	8,669
Total Repurchases and Securities Lending	109,580	95,243
Up to 30 days [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	4,042	3,244
Securities Lending	0	0
Total Repurchases and Securities Lending	4,042	3,244
30-90 days [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	3,836	2,153
Securities Lending	146	299
Total Repurchases and Securities Lending	3,982	2,452
Over 90 days [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase Agreements	4,154	5,309
Securities Lending	0	0
Total Repurchases and Securities Lending	$ 4,154	$ 5,309

Guarantees, Pledged Assets an_5

Guarantees, Pledged Assets and Collateral, and other Commitments Guarantees, Pledged Assets and Collateral, Other Commitments Guarantees, and Other Commitments (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2019	Dec. 31, 2018
Other Commitments [Line Items]
Resale Agreements, Funded Amounts Outstanding		$ 0	$ 0
Resale Agreements, Unfunded Commitments		$ 4,300	9,800
Description of Guarantees Given by Registrant		The Parent fully and unconditionally guarantees the payment of principal, interest, and any other amounts that may be due on securities that its 100% owned finance subsidiary, Wells Fargo Finance LLC, may issue.
Liabilities	[1]	$ 1,749,534	1,698,817
Other commitments and guarantees [Member] | Wells Fargo Finance, LLC [Member]
Other Commitments [Line Items]
Liabilities		895	5
Purchase Commitment [Member] | Debt securities [Member]
Other Commitments [Line Items]
Other Commitment		193	335
Purchase Commitment [Member] | Equity securities [Member]
Other Commitments [Line Items]
Other Commitment		$ 2,400	$ 2,500
[1]	(3) Our consolidated liabilities at September 30, 2019 , and December 31, 2018 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Accrued expenses and other liabilities, $202 million and $191 million ; Long-term debt, $722 million and $816 million ; and Total liabilities, $924 million and $1.0 billion , respectively.

Legal Actions (Details)

Legal Actions (Details) $ in Millions

Nov. 30, 2016USD ($)

Jul. 13, 2012USD ($)

May 31, 2019USD ($)

Dec. 31, 2018USD ($)

Nov. 30, 2018USD ($)

Oct. 31, 2018USD ($)

Aug. 31, 2018USD ($)

Sep. 30, 2019USD ($)legal_action

Apr. 20, 2017USD ($)

Apr. 20, 2018USD ($)

Jul. 31, 2017

Nov. 17, 2016legal_action

May 31, 2016

ATM Access Fee Litigation [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

3

Automobile Lending Practices [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

1

Loss Contingency, Estimate of Possible Loss

$ 424

Automobile Lending Practices [Member] | All Class Members [Member]

Legal Actions (Textual) [Abstract]

Litigation Settlement, Additional Funding

$ 1

Retail Sales Practices, CPI and GAP, and Mortgage interest rate lock matters [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 575

Civil Money Penalty

$ 1,000

Interchange Litigation [Member]

Loss Contingencies [Line Items]

Litigation Settlement, Percentage Of Default Interchange Distributed To Class Merchants

0.10%

Legal Actions (Textual) [Abstract]

Loss Contingency, Estimate of Possible Loss

$ 6,600

Litigation Settlement, Default Interchange Distributed To Class Merchants, Distribution Period

8 months

Litigation Settlement, Expense

$ 6,200

Litigation Settlement, Funds Remaining from 2012

5,300

Litigation Settlement, Additional Funding

900

Litigation Settlement, Additional Funding Allocated to WFC

$ 94.5

Mobile Deposit Patent Litigation [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

2

Mortgage Interest Rate Lock [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

2

Mortgage Related Regulatory Investigations [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 17

$ 2,090

RMBS Trustee Litigation [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 43

Sales Practice Matters [Member]

Legal Actions (Textual) [Abstract]

Amounts To Be Paid In Connection With Legal Or Regulatory Matters

$ 142

Payments for Legal Settlements

$ 65

Gain Contingency, Estimate of Possible Insurance Carriers Payments

$ 240

Sales Practice Matters [Member] | All Class Members [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 480

RMBS Trustee Punitive Class Action Complaint [Member]

Legal Actions (Textual) [Abstract]

RMBS trusts at issue in the State Court Action

261

RMBS Trustee Litigation Civil Complaint [Member]

Legal Actions (Textual) [Abstract]

RMBS trusts at issue in the State Court Action

11

Administration of a minor’s trust [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

3

Liability for Contingent Litigation Losses [Member]

Legal Actions (Textual) [Abstract]

Range of possible loss, portion not accrued

$ 3,600

Derivatives, Notional or Contra

Derivatives, Notional or Contractual Amounts and Fair Values of Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	$ 45,588	$ 34,560
Fair value derivative assets, netting	(30,908)	(23,790)
Net amounts in consolidated balance sheet, assets	14,680	10,770
Fair value derivative liabilities	42,986	32,047
Fair value derivative liabilities, netting	(33,038)	(23,548)
Net amounts in consolidated balance sheet, liabilities	9,948	8,499
Interest rate contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(19,854)	(12,029)
Net amounts in consolidated balance sheet, assets	10,379	6,406
Fair value derivative liabilities, netting	(21,637)	(13,152)
Net amounts in consolidated balance sheet, liabilities	2,829	3,156
Commodity contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(875)	(849)
Net amounts in consolidated balance sheet, assets	463	739
Fair value derivative liabilities, netting	(680)	(727)
Net amounts in consolidated balance sheet, liabilities	1,909	1,609
Equity contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(5,178)	(5,318)
Net amounts in consolidated balance sheet, assets	2,400	2,227
Fair value derivative liabilities, netting	(5,096)	(3,877)
Net amounts in consolidated balance sheet, liabilities	3,068	2,133
Foreign exchange contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(4,926)	(5,355)
Net amounts in consolidated balance sheet, assets	1,391	1,359
Fair value derivative liabilities, netting	(5,554)	(5,522)
Net amounts in consolidated balance sheet, liabilities	2,128	1,591
Credit Contracts Protection Sold [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(9)	(73)
Net amounts in consolidated balance sheet, assets	3	3
Fair value derivative liabilities, netting	(64)	(180)
Net amounts in consolidated balance sheet, liabilities	5	2
Credit Contracts Protection Purchased [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(66)	(166)
Net amounts in consolidated balance sheet, assets	44	36
Fair value derivative liabilities, netting	(7)	(90)
Net amounts in consolidated balance sheet, liabilities	9	8
Designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	3,227	2,810
Fair value derivative liabilities	3,122	2,012
Designated as hedging instrument [Member] | Interest rate contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	182,909	177,511
Fair value derivative assets	2,922	2,237
Fair value derivative liabilities	1,460	636
Designated as hedging instrument [Member] | Foreign exchange contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	32,408	34,176
Fair value derivative assets	305	573
Fair value derivative liabilities	1,662	1,376
Not designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	42,361	31,750
Fair value derivative liabilities	39,864	30,035
Economic hedges [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	2,345	2,463
Fair value derivative liabilities	516	528
Economic hedges [Member] | Interest rate contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	303,430	173,215
Fair value derivative assets	355	849
Fair value derivative liabilities	379	369
Economic hedges [Member] | Equity contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	17,790	13,920
Fair value derivative assets	1,575	1,362
Fair value derivative liabilities	79	79
Economic hedges [Member] | Foreign exchange contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	18,305	19,521
Fair value derivative assets	386	225
Fair value derivative liabilities	58	80
Economic hedges [Member] | Credit Contracts Protection Purchased [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	900	100
Fair value derivative assets	29	27
Fair value derivative liabilities	0	0
Customer accommodation trading and other derivatives [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	40,016	29,287
Fair value derivative liabilities	39,348	29,507
Customer accommodation trading and other derivatives [Member] | Interest rate contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	11,588,606	9,162,821
Fair value derivative assets	26,956	15,349
Fair value derivative liabilities	22,627	15,303
Customer accommodation trading and other derivatives [Member] | Commodity contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	80,927	66,173
Fair value derivative assets	1,338	1,588
Fair value derivative liabilities	2,589	2,336
Customer accommodation trading and other derivatives [Member] | Equity contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	255,258	217,890
Fair value derivative assets	6,003	6,183
Fair value derivative liabilities	8,085	5,931
Customer accommodation trading and other derivatives [Member] | Foreign exchange contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	354,182	364,982
Fair value derivative assets	5,626	5,916
Fair value derivative liabilities	5,962	5,657
Customer accommodation trading and other derivatives [Member] | Credit Contracts Protection Sold [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	12,347	11,741
Fair value derivative assets	12	76
Fair value derivative liabilities	69	182
Customer accommodation trading and other derivatives [Member] | Credit Contracts Protection Purchased [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	23,494	20,880
Fair value derivative assets	81	175
Fair value derivative liabilities	16	98
Basis swap [Member] | Designated as hedging instrument [Member] | Foreign exchange contract [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	$ 10,100	$ 11,200

Derivatives, Gross Fair Value o

Derivatives, Gross Fair Value of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Derivative Assets
Gross amounts recognized	$ 45,588	$ 34,560
Gross amounts offset in consolidated balance sheet	(30,908)	(23,790)
Net amounts in consolidated balance sheet, assets	14,680	10,770
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(517)	(875)
Net amounts	14,163	9,895
Derivative Liabilities
Gross amounts recognized	42,986	32,047
Gross amounts offset in consolidated balance sheet, liabilities	(33,038)	(23,548)
Net amounts in consolidated balance sheet, liabilities	9,948	8,499
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(1,355)	(875)
Net amounts	8,593	7,624
Derivatives (Textual) [Abstract]
Derivative assets subject to enforceable master netting arrangements	40,300	30,900
Derivative liabilities subject to enforceable master netting arrangements	39,400	28,400
Derivative assets not subject to enforceable master netting arrangements	5,300	3,700
Derivative liabilities not subject to enforceable master netting arrangements	3,600	3,600
Valuation adjustments for derivative assets	336	353
Valuation adjustments for derivative liabilities	111	152
Cash collateral netted against derivative assets	4,300	3,700
Cash collateral netted against derivative liabilities	6,700	3,600
Interest rate contract [Member]
Derivative Assets
Gross amounts recognized	30,233	18,435
Gross amounts offset in consolidated balance sheet	(19,854)	(12,029)
Net amounts in consolidated balance sheet, assets	10,379	6,406
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(456)	(80)
Net amounts	$ 9,923	$ 6,326
Percent exchanged in the over the counter market	97.00%	90.00%
Derivative Liabilities
Gross amounts recognized	$ 24,466	$ 16,308
Gross amounts offset in consolidated balance sheet, liabilities	(21,637)	(13,152)
Net amounts in consolidated balance sheet, liabilities	2,829	3,156
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(905)	(567)
Net amounts	$ 1,924	$ 2,589
Percent exchanged in over-the-counter market	96.00%	92.00%
Commodity contract [Member]
Derivative Assets
Gross amounts recognized	$ 1,338	$ 1,588
Gross amounts offset in consolidated balance sheet	(875)	(849)
Net amounts in consolidated balance sheet, assets	463	739
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(1)	(4)
Net amounts	$ 462	$ 735
Percent exchanged in the over the counter market	68.00%	57.00%
Derivative Liabilities
Gross amounts recognized	$ 2,589	$ 2,336
Gross amounts offset in consolidated balance sheet, liabilities	(680)	(727)
Net amounts in consolidated balance sheet, liabilities	1,909	1,609
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(3)	(8)
Net amounts	$ 1,906	$ 1,601
Percent exchanged in over-the-counter market	87.00%	85.00%
Equity contract [Member]
Derivative Assets
Gross amounts recognized	$ 7,578	$ 7,545
Gross amounts offset in consolidated balance sheet	(5,178)	(5,318)
Net amounts in consolidated balance sheet, assets	2,400	2,227
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(43)	(755)
Net amounts	$ 2,357	$ 1,472
Percent exchanged in the over the counter market	69.00%	78.00%
Derivative Liabilities
Gross amounts recognized	$ 8,164	$ 6,010
Gross amounts offset in consolidated balance sheet, liabilities	(5,096)	(3,877)
Net amounts in consolidated balance sheet, liabilities	3,068	2,133
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(274)	(110)
Net amounts	$ 2,794	$ 2,023
Percent exchanged in over-the-counter market	79.00%	75.00%
Foreign exchange contract [Member]
Derivative Assets
Gross amounts recognized	$ 6,317	$ 6,714
Gross amounts offset in consolidated balance sheet	(4,926)	(5,355)
Net amounts in consolidated balance sheet, assets	1,391	1,359
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(16)	(35)
Net amounts	$ 1,375	$ 1,324
Percent exchanged in the over the counter market	100.00%	100.00%
Derivative Liabilities
Gross amounts recognized	$ 7,682	$ 7,113
Gross amounts offset in consolidated balance sheet, liabilities	(5,554)	(5,522)
Net amounts in consolidated balance sheet, liabilities	2,128	1,591
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(171)	(188)
Net amounts	$ 1,957	$ 1,403
Percent exchanged in over-the-counter market	100.00%	100.00%
Credit Contracts Protection Sold [Member]
Derivative Assets
Gross amounts recognized	$ 12	$ 76
Gross amounts offset in consolidated balance sheet	(9)	(73)
Net amounts in consolidated balance sheet, assets	3	3
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	0	0
Net amounts	$ 3	$ 3
Percent exchanged in the over the counter market	88.00%	12.00%
Derivative Liabilities
Gross amounts recognized	$ 69	$ 182
Gross amounts offset in consolidated balance sheet, liabilities	(64)	(180)
Net amounts in consolidated balance sheet, liabilities	5	2
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(2)	(2)
Net amounts	$ 3	$ 0
Percent exchanged in over-the-counter market	98.00%	67.00%
Credit Contracts Protection Purchased [Member]
Derivative Assets
Gross amounts recognized	$ 110	$ 202
Gross amounts offset in consolidated balance sheet	(66)	(166)
Net amounts in consolidated balance sheet, assets	44	36
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	(1)	(1)
Net amounts	$ 43	$ 35
Percent exchanged in the over the counter market	97.00%	78.00%
Derivative Liabilities
Gross amounts recognized	$ 16	$ 98
Gross amounts offset in consolidated balance sheet, liabilities	(7)	(90)
Net amounts in consolidated balance sheet, liabilities	9	8
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting)	0	0
Net amounts	$ 9	$ 8
Percent exchanged in over-the-counter market	97.00%	11.00%

Derivatives, Derivatives in Fai

Derivatives, Derivatives in Fair Value and Cash Flow Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Line Items Presented in the Consolidated Statement of Income [Abstract]
Debt securities	$ 3,666	$ 3,595	$ 11,388	$ 10,603
Loans	10,982	11,116	33,652	32,607
Mortgage loans held for sale	232	210	579	587
Deposits (2)	(2,324)	(1,499)	(6,563)	(3,857)
Long-term debt (2)	(1,780)	(1,667)	(5,607)	(4,901)
Other	1,528	633	2,846	1,720
Total amounts of line items presented in the consolidated statement of income	12,304	12,388	36,295	36,759
Derivatives (Textual) [Abstract]
Cash flow hedge deferred loss in other comprehensive income			$ (235)
Maximum length of time hedged in cash flow hedge			11 years
Time value component recognized as net interest income (expense) on forward derivatives excluded from the assessment of hedge effectiveness	5	(5)	$ 19	(3)
Additional Collateral, Aggregate Fair Value	1,800		1,800		$ 1,800
Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	(11)	(90)	(87)	(402)
Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	(75)	(79)	(233)	(216)
Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	79	(6)	79	95
Recognized on derivatives	2,279	(781)	5,834	(2,865)
Recognized on hedged items	(2,207)	740	(5,633)	2,690
Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	(73)	(78)	(227)	(215)
Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	(106)	(110)	(356)	(277)
Recognized on derivatives	(834)	(195)	(422)	(1,013)
Recognized on hedged items	778	262	411	968
Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	(2)	(1)	(6)	(1)
Debt securities [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	12	(51)	72	(170)
Debt securities [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	0	0	0	0
Debt securities [Member] | Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	(1)	(34)	29	(158)
Recognized on derivatives	(628)	386	(2,531)	1,692
Recognized on hedged items	631	(410)	2,544	(1,730)
Debt securities [Member] | Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Debt securities [Member] | Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	9	8	29	23
Recognized on derivatives	(2)	2	(11)	8
Recognized on hedged items	3	(3)	12	(5)
Debt securities [Member] | Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Loans [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	0	0	0	0
Loans [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	(73)	(78)	(228)	(215)
Loans [Member] | Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0	0	0
Recognized on derivatives	0	0	0	1
Recognized on hedged items	0	0	0	(1)
Loans [Member] | Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	(73)	(78)	(228)	(215)
Loans [Member] | Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0	0	0
Recognized on derivatives	0	0	0	0
Recognized on hedged items	0	0	0	0
Loans [Member] | Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Mortgage loans held for sale [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	(1)	(3)	(3)	(9)
Mortgage loans held for sale [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	0	0	0	0
Mortgage loans held for sale [Member] | Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	1	(1)	1	(3)
Recognized on derivatives	(3)	10	(36)	21
Recognized on hedged items	1	(12)	32	(27)
Mortgage loans held for sale [Member] | Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Mortgage loans held for sale [Member] | Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0	0	0
Recognized on derivatives	0	0	0	0
Recognized on hedged items	0	0	0	0
Mortgage loans held for sale [Member] | Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Deposits [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	26	(7)	21	(50)
Deposits [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	0	0	0	0
Deposits [Member] | Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	26	(10)	(4)	(35)
Recognized on derivatives	30	(58)	588	(248)
Recognized on hedged items	(30)	61	(563)	233
Deposits [Member] | Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Deposits [Member] | Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0	0	0
Recognized on derivatives	0	0	0	0
Recognized on hedged items	0	0	0	0
Deposits [Member] | Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Long-term debt [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	(29)	(29)	(158)	(104)
Long-term debt [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	(2)	(1)	(5)	(1)
Long-term debt [Member] | Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	53	39	53	291
Recognized on derivatives	2,880	(1,119)	7,813	(4,331)
Recognized on hedged items	(2,809)	1,101	(7,646)	4,215
Long-term debt [Member] | Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	1	0
Long-term debt [Member] | Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	(115)	(118)	(385)	(300)
Recognized on derivatives	86	(58)	583	(132)
Recognized on hedged items	(124)	126	(576)	153
Long-term debt [Member] | Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	(2)	(1)	(6)	(1)
Other noninterest income [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Net income (expense) recognized on fair value hedges	(19)	0	(19)	(69)
Other noninterest income [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Net income (expense) recognized on cash flow hedges	0	0	0	0
Other noninterest income [Member] | Interest rate contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0	0	0
Recognized on derivatives	0	0	0	0
Recognized on hedged items	0	0	0	0
Other noninterest income [Member] | Interest rate contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	0	0	0	0
Other noninterest income [Member] | Foreign exchange contract [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0	0	0
Recognized on derivatives	(918)	(139)	(994)	(889)
Recognized on hedged items	899	139	975	820
Other noninterest income [Member] | Foreign exchange contract [Member] | Cash flow hedging [Member]
Gains (losses) on cash flow hedging relationships
Realized gains (losses) (pre tax) reclassified from cumulative OCI into net income	$ 0	$ 0	$ 0	$ 0

Derivatives, Fair Value Hedging

Derivatives, Fair Value Hedging Basis Adjustment (Details) - Fair value hedging [Member] - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Hedged items currently designated [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of Assets	$ 37,112	$ 37,857
Hedged Asset, Fair Value Hedge, Cumulative Basis Adjustments	1,623	(157)
Hedged items currently designated [Member] | Mortgage loans held for sale [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of Assets	1,231	448
Hedged Asset, Fair Value Hedge, Cumulative Basis Adjustments	(2)	7
Hedged items currently designated [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of (Liabilities)	(48,824)	(56,535)
Hedged Liability, Fair Value Hedge, Cumulative Basis Adjustments	(449)	115
Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of (Liabilities)	(124,854)	(104,341)
Hedged Liability, Fair Value Hedge, Cumulative Basis Adjustments	(8,847)	(742)
Not designated as hedging instrument [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of Assets	9,435	4,938
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Basis Adjustments	274	238
Not designated as hedging instrument [Member] | Mortgage loans held for sale [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of Assets	864	0
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Basis Adjustments	(1)	0
Not designated as hedging instrument [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of (Liabilities)	(33)	0
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Basis Adjustments	0	0
Not designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of (Liabilities)	(25,699)	(25,539)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Basis Adjustments	222	366
Foreign exchange contract [Member] | Hedged items currently designated [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of Assets	1,100	1,600
Foreign exchange contract [Member] | Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying Amount of (Liabilities)	(5,000)	(6,300)
Re-designated as hedging instrument [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedged Asset, Fair Value Hedge, Cumulative Basis Adjustments	770	1,400
Re-designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedged Liability, Fair Value Hedge, Cumulative Basis Adjustments	$ 122	$ 66

Derivatives, Derivatives Not De

Derivatives, Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Derivatives (Textual) [Abstract]
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	$ 678	$ (501)	$ 2,795	$ (2,040)
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	58	167	(376)	926
Not designated as hedging instrument [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(226)	(1,749)	(3,854)	(1,204)
Not designated as hedging instrument [Member] | Mortgage banking [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	831	(401)	2,811	(1,486)
Not designated as hedging instrument [Member] | Net gain (loss) from equity securities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(1,375)	(719)	(2,918)	(1,317)
Not designated as hedging instrument [Member] | Net gain (loss) from trading activities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	62	(605)	(3,754)	1,557
Not designated as hedging instrument [Member] | Other [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	256	(24)	7	42
Economic hedges [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(393)	(964)	(96)	(2,010)
Derivatives (Textual) [Abstract]
Derivative instruments not designated as hedging instruments, loss	0		(36)
Derivative instruments not designated as hedging instruments, gain		10		46
Economic hedges [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	736	(335)	2,426	(1,109)
Economic hedges [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(1,381)	(711)	(2,924)	(1,304)
Economic hedges [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	263	78	403	405
Economic hedges [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(11)	4	(1)	(2)
Economic hedges [Member] | Mortgage banking [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	736	(334)	2,419	(1,114)
Derivatives (Textual) [Abstract]
Fair value of net asset (liability) from economic hedges related to mortgage servicing activities	6		6		$ 757
Economic hedges [Member] | Mortgage banking [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	736	(334)	2,419	(1,114)
Economic hedges [Member] | Mortgage banking [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Mortgage banking [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Mortgage banking [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from equity securities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(1,375)	(719)	(2,918)	(1,317)
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(1,375)	(719)	(2,918)	(1,317)
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from trading activities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Other [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	246	89	403	421
Economic hedges [Member] | Other [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	(1)	7	5
Economic hedges [Member] | Other [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(6)	8	(6)	13
Economic hedges [Member] | Other [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	263	78	403	405
Economic hedges [Member] | Other [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(11)	4	(1)	(2)
Customer accommodation trading and other derivatives [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	167	(785)	(3,758)	806
Customer accommodation trading and other derivatives [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(260)	230	(469)	492
Derivatives (Textual) [Abstract]
Aggregate fair value of derivative loan commitments net asset (liability)	32		32		$ 60
Customer accommodation trading and other derivatives [Member] | Commodity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	65	(28)	143	88
Customer accommodation trading and other derivatives [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	294	14	(3,371)	(411)
Customer accommodation trading and other derivatives [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	78	(1,259)	9	659
Customer accommodation trading and other derivatives [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(10)	258	(70)	(22)
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	95	(67)	392	(372)
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	95	(67)	392	(372)
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Commodity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Commodity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	62	(605)	(3,754)	1,557
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(355)	298	(861)	865
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Commodity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	65	(28)	143	88
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	284	14	(2,975)	(33)
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	78	(1,147)	9	659
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	(10)	258	(70)	(22)
Customer accommodation trading and other derivatives [Member] | Other [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	10	(113)	(396)	(379)
Customer accommodation trading and other derivatives [Member] | Other [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	(1)	0	(1)
Customer accommodation trading and other derivatives [Member] | Other [Member] | Commodity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Other [Member] | Equity contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	10	0	(396)	(378)
Customer accommodation trading and other derivatives [Member] | Other [Member] | Foreign exchange contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	0	(112)	0	0
Customer accommodation trading and other derivatives [Member] | Other [Member] | Credit contract [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Net gains (losses) recognized related to derivatives not designated as hedging instruments	$ 0	$ 0	$ 0	$ 0

Derivatives, Sold and Purchased

Derivatives, Sold and Purchased Credit Derivatives (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	$ 69	$ 182
Notional amount protection sold	12,347	11,741
Notional amount protection purchased with identical underlyings	3,713	3,898
Notional net protection sold	8,634	7,843
Notional other protection purchased	20,681	17,082
Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	6,906	6,629
Corporate bonds [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	1	59
Notional amount protection sold	2,686	2,037
Notional amount protection purchased with identical underlyings	1,988	1,374
Notional net protection sold	698	663
Notional other protection purchased	$ 2,189	$ 1,460
Corporate bonds [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Jan. 1, 2019	Jan. 1, 2019
Corporate bonds [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Dec. 31, 2029	Dec. 31, 2027
Corporate bonds [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	$ 771	$ 441
Structured products [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	25	62
Notional amount protection sold	78	133
Notional amount protection purchased with identical underlyings	67	121
Notional net protection sold	11	12
Notional other protection purchased	$ 112	$ 113
Structured products [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Jan. 1, 2022	Jan. 1, 2022
Structured products [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Dec. 31, 2047	Dec. 31, 2047
Structured products [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	$ 73	$ 128
Credit default swap [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	0	1
Notional amount protection sold	3,498	3,618
Notional amount protection purchased with identical underlyings	1,312	1,998
Notional net protection sold	2,186	1,620
Notional other protection purchased	$ 6,596	$ 2,896
Credit default swap [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Jan. 1, 2019	Jan. 1, 2019
Credit default swap [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Dec. 31, 2029	Dec. 31, 2028
Credit default swap [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	$ 574	$ 582
Commercial [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	32	49
Notional amount protection sold	330	389
Notional amount protection purchased with identical underlyings	305	363
Notional net protection sold	25	26
Notional other protection purchased	$ 50	$ 51
Commercial [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Jan. 1, 2047	Jan. 1, 2047
Commercial [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Dec. 31, 2058	Dec. 31, 2058
Commercial [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	$ 76	$ 109
Asset-backed securities [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	8	9
Notional amount protection sold	41	42
Notional amount protection purchased with identical underlyings	41	42
Notional net protection sold	0	0
Notional other protection purchased	$ 1	$ 1
Asset-backed securities [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Jan. 1, 2045	Jan. 1, 2045
Asset-backed securities [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Dec. 31, 2046	Dec. 31, 2046
Asset-backed securities [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	$ 41	$ 42
Other credit derivatives [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value liability	3	2
Notional amount protection sold	5,714	5,522
Notional amount protection purchased with identical underlyings	0	0
Notional net protection sold	5,714	5,522
Notional other protection purchased	$ 11,733	$ 12,561
Other credit derivatives [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Jan. 1, 2019	Jan. 1, 2018
Other credit derivatives [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Derivative range of maturity dates	Dec. 31, 2048	Dec. 31, 2048
Other credit derivatives [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount protection sold	$ 5,371	$ 5,327

Derivatives Credit-Risk Conting

Derivatives Credit-Risk Contingent Feature Textuals (Details) - USD ($) $ in Billions	Sep. 30, 2019	Dec. 31, 2018
Derivatives [Abstract]
Aggregate fair value of derivative instruments with credit-risk-related contingent features, net liability	$ 11.7	$ 7.4
Collateral for derivative instruments with credit-risk-related contingent features	9.9	5.6
Additional collateral for derivative instruments with credit-risk-related contingent features	$ 1.8	$ 1.8

Fair Value, Measurements From B

Fair Value, Measurements From Brokers or Third Party Pricing Services (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Financial assets
Trading debt securities		$ 79,113	$ 69,989
Available-for-sale, at fair value		271,236	269,912
Marketable equity securities		38,368	29,556
Equity securities	[1]	63,884	55,148
Derivative assets		45,588	34,560
Financial liabilities
Derivative liabilities		(42,986)	(32,047)
Securities of U.S. Treasury and federal agencies [Member]
Financial assets
Available-for-sale, at fair value		16,549	13,348
Securities of U.S. states and political subdivisions [Member]
Financial assets
Available-for-sale, at fair value		40,503	49,264
Mortgage-backed securities [Member]
Financial assets
Available-for-sale, at fair value		172,614	160,203
Other debt securities [Member]
Financial assets
Available-for-sale, at fair value		4,667	5,483
Brokers [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, at fair value		45	45
Brokers [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, at fair value		126	129
Third party pricing services [Member] | Fair value, inputs, level 1 [Member]
Financial assets
Derivative assets		17	17
Financial liabilities
Derivative liabilities		(18)	(12)
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Debt securities [Member]
Financial assets
Trading debt securities		399	899
Available-for-sale, at fair value		13,550	10,399
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Financial assets
Available-for-sale, at fair value		13,550	10,399
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Securities of U.S. states and political subdivisions [Member]
Financial assets
Available-for-sale, at fair value		0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Mortgage-backed securities [Member]
Financial assets
Available-for-sale, at fair value		0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, at fair value		0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Equity securities [Member]
Financial assets
Equity securities		0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Marketable equity securities [Member]
Financial assets
Marketable equity securities		0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Nonmarketable equity securities [Member]
Financial assets
Nonmarketable equity securities		0	0
Third party pricing services [Member] | Fair value, inputs, level 2 [Member]
Financial assets
Derivative assets		0	0
Financial liabilities
Derivative liabilities		0	0
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Debt securities [Member]
Financial assets
Trading debt securities		272	256
Available-for-sale, at fair value		254,622	255,780
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Financial assets
Available-for-sale, at fair value		2,999	2,949
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. states and political subdivisions [Member]
Financial assets
Available-for-sale, at fair value		40,150	48,377
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Mortgage-backed securities [Member]
Financial assets
Available-for-sale, at fair value		171,917	160,162
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, at fair value		39,556	44,292
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Equity securities [Member]
Financial assets
Equity securities		161	159
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Marketable equity securities [Member]
Financial assets
Marketable equity securities		161	158
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Nonmarketable equity securities [Member]
Financial assets
Nonmarketable equity securities		0	1
Third party pricing services [Member] | Fair value, inputs, level 3 [Member]
Financial assets
Derivative assets		0	0
Financial liabilities
Derivative liabilities		0	0
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Debt securities [Member]
Financial assets
Trading debt securities		0	0
Available-for-sale, at fair value		694	842
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Financial assets
Available-for-sale, at fair value		0	0
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Securities of U.S. states and political subdivisions [Member]
Financial assets
Available-for-sale, at fair value		38	43
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Mortgage-backed securities [Member]
Financial assets
Available-for-sale, at fair value		37	41
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, at fair value		619	758
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Equity securities [Member]
Financial assets
Equity securities		0	0
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Marketable equity securities [Member]
Financial assets
Marketable equity securities		0	0
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Financial assets
Nonmarketable equity securities		$ 0	$ 0
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Fair Value, Assets and Liabilit

Fair Value, Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Assets:
Trading debt securities		$ 79,113	$ 69,989
Available-for-sale, at fair value		271,236	269,912
Mortgage servicing rights		11,072	14,649
Derivative assets		45,588	34,560
Net amounts in consolidated balance sheet, assets		14,680	10,770
Marketable equity securities		38,368	29,556
Equity securities	[1]	63,884	55,148
Liabilities:
Total derivative liabilities		(42,986)	(32,047)
Fair value liability derivatives, net		(9,948)	(8,499)
Interest rate contract [Member]
Assets:
Net amounts in consolidated balance sheet, assets		10,379	6,406
Liabilities:
Fair value liability derivatives, net		(2,829)	(3,156)
Commodity contract [Member]
Assets:
Net amounts in consolidated balance sheet, assets		463	739
Liabilities:
Fair value liability derivatives, net		(1,909)	(1,609)
Equity contract [Member]
Assets:
Net amounts in consolidated balance sheet, assets		2,400	2,227
Liabilities:
Fair value liability derivatives, net		(3,068)	(2,133)
Foreign exchange contract [Member]
Assets:
Net amounts in consolidated balance sheet, assets		1,391	1,359
Liabilities:
Fair value liability derivatives, net		(2,128)	(1,591)
US Treasury and Government [Member]
Assets:
Available-for-sale, at fair value		16,549	13,348
Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale, at fair value		40,503	49,264
Mortgage-backed securities [Member]
Assets:
Available-for-sale, at fair value		172,614	160,203
Federal agencies [Member]
Assets:
Available-for-sale, at fair value		167,535	153,203
Residential [Member]
Assets:
Available-for-sale, at fair value		853	2,775
Commercial [Member]
Assets:
Available-for-sale, at fair value		4,226	4,225
Corporate debt securities [Member]
Assets:
Available-for-sale, at fair value		5,893	6,271
Collateralized loan obligations [Member]
Assets:
Available-for-sale, at fair value		31,010	35,343
Collateralized debt obligations [Member]
Assets:
Available-for-sale, at fair value		609	800
Other debt securities [Member]
Assets:
Available-for-sale, at fair value		4,667	5,483
Fair Value, Recurring [Member]
Assets:
Mortgage loans held for sale		16,945	11,771
Loans held for sale		1,501	1,469
Loans		185	244
Mortgage servicing rights		11,072	14,649
Fair value asset derivatives, netting		(30,908)	(23,790)
Net amounts in consolidated balance sheet, assets		14,680	10,770
Total assets recorded at fair value		433,100	408,360
Liabilities:
Fair value liability derivatives, netting		33,038	23,548
Fair value liability derivatives, net		(9,948)	(8,499)
Total short sale liabilities		(18,290)	(19,720)
Other liabilities (2)		(2)	(2)
Total liabilities recorded at fair value		(28,240)	(28,221)
Fair Value, Recurring [Member] | Excluding NAV Investments [Member]
Assets:
Total assets recorded at fair value		432,956	408,258
Fair Value, Recurring [Member] | Interest rate contract [Member]
Assets:
Derivative assets		30,233	18,435
Liabilities:
Total derivative liabilities		(24,466)	(16,308)
Fair Value, Recurring [Member] | Commodity contract [Member]
Assets:
Derivative assets		1,338	1,588
Liabilities:
Total derivative liabilities		(2,589)	(2,336)
Fair Value, Recurring [Member] | Equity contract [Member]
Assets:
Derivative assets		7,578	7,545
Liabilities:
Total derivative liabilities		(8,164)	(6,010)
Fair Value, Recurring [Member] | Foreign exchange contract [Member]
Assets:
Derivative assets		6,317	6,714
Liabilities:
Total derivative liabilities		(7,682)	(7,113)
Fair Value, Recurring [Member] | Credit Risk Contract [Member]
Assets:
Derivative assets		122	278
Liabilities:
Total derivative liabilities		(85)	(280)
Fair Value, Recurring [Member] | Debt securities [Member]
Assets:
Trading debt securities		79,113	69,989
Available-for-sale, at fair value		271,236	269,912
Fair Value, Recurring [Member] | US Treasury and Government [Member]
Assets:
Trading debt securities		25,454	23,417
Available-for-sale, at fair value		16,549	13,348
Liabilities:
Total short sale liabilities		(10,928)	(12,261)
Fair Value, Recurring [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Trading debt securities		3,273	3,275
Available-for-sale, at fair value		40,503	49,264
Fair Value, Recurring [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		28	22
Fair Value, Recurring [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		35,771	30,715
Available-for-sale, at fair value		172,614	160,203
Fair Value, Recurring [Member] | Federal agencies [Member]
Assets:
Available-for-sale, at fair value		167,535	153,203
Fair Value, Recurring [Member] | Residential [Member]
Assets:
Available-for-sale, at fair value		853	2,775
Fair Value, Recurring [Member] | Commercial [Member]
Assets:
Available-for-sale, at fair value		4,226	4,225
Fair Value, Recurring [Member] | Mortgage backed securities, other [Member]
Liabilities:
Total short sale liabilities		(69)	(47)
Fair Value, Recurring [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities		12,319	10,757
Available-for-sale, at fair value		5,893	6,271
Liabilities:
Total short sale liabilities		(4,820)	(4,505)
Fair Value, Recurring [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities		885	910
Available-for-sale, at fair value		31,010	35,343
Fair Value, Recurring [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		1,383	893
Available-for-sale, at fair value		4,666	5,482
Fair Value, Recurring [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, at fair value		860	925
Fair Value, Recurring [Member] | Home equity loans [Member]
Assets:
Available-for-sale, at fair value		0	112
Fair Value, Recurring [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, at fair value		3,806	4,445
Fair Value, Recurring [Member] | Other debt securities [Member]
Assets:
Available-for-sale, at fair value		1	1
Fair Value, Recurring [Member] | Equity securities [Member]
Liabilities:
Total short sale liabilities		(2,473)	(2,904)
Fair Value, Recurring [Member] | Equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Equity securities		38,224	29,454
Fair Value, Recurring [Member] | Marketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Marketable equity securities		31,075	23,962
Fair Value, Recurring [Member] | Nonmarketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Nonmarketable equity securities		7,149	5,492
Fair Value, Recurring [Member] | Other securities sold, not yet purchased [Member]
Liabilities:
Total short sale liabilities		0	(3)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member]
Assets:
Mortgage loans held for sale		0	0
Loans held for sale		0	0
Loans		0	0
Mortgage servicing rights		0	0
Fair value asset derivatives, netting		0	0
Net amounts in consolidated balance sheet, assets		2,388	1,711
Liabilities:
Fair value liability derivatives, netting		0	0
Fair value liability derivatives, net		(1,766)	(1,525)
Total short sale liabilities		(13,294)	(14,752)
Other liabilities (2)		0	0
Total liabilities recorded at fair value		(15,060)	(16,277)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Excluding NAV Investments [Member]
Assets:
Total assets recorded at fair value		69,070	55,874
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Interest rate contract [Member]
Assets:
Derivative assets		45	46
Liabilities:
Total derivative liabilities		(43)	(21)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Commodity contract [Member]
Assets:
Derivative assets		0	0
Liabilities:
Total derivative liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Equity contract [Member]
Assets:
Derivative assets		2,326	1,648
Liabilities:
Total derivative liabilities		(1,705)	(1,492)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Foreign exchange contract [Member]
Assets:
Derivative assets		17	17
Liabilities:
Total derivative liabilities		(18)	(12)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Credit Risk Contract [Member]
Assets:
Derivative assets		0	0
Liabilities:
Total derivative liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Debt securities [Member]
Assets:
Trading debt securities		22,313	20,525
Available-for-sale, at fair value		13,587	10,433
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | US Treasury and Government [Member]
Assets:
Trading debt securities		22,313	20,525
Available-for-sale, at fair value		13,550	10,399
Liabilities:
Total short sale liabilities		(10,821)	(11,850)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Federal agencies [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Residential [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Commercial [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Mortgage backed securities, other [Member]
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		37	34
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Home equity loans [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other debt securities [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Equity securities [Member]
Liabilities:
Total short sale liabilities		(2,473)	(2,902)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Equity securities		30,782	23,205
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Marketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Marketable equity securities		30,782	23,205
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Nonmarketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Nonmarketable equity securities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other securities sold, not yet purchased [Member]
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member]
Assets:
Mortgage loans held for sale		15,696	10,774
Loans held for sale		1,500	1,409
Loans		0	0
Mortgage servicing rights		0	0
Fair value asset derivatives, netting		0	0
Net amounts in consolidated balance sheet, assets		41,195	31,279
Liabilities:
Fair value liability derivatives, netting		0	0
Fair value liability derivatives, net		(39,137)	(28,973)
Total short sale liabilities		(4,996)	(4,968)
Other liabilities (2)		0	0
Total liabilities recorded at fair value		(44,133)	(33,941)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Excluding NAV Investments [Member]
Assets:
Total assets recorded at fair value		371,396	350,852
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Interest rate contract [Member]
Assets:
Derivative assets		29,933	18,294
Liabilities:
Total derivative liabilities		(24,311)	(16,217)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Commodity contract [Member]
Assets:
Derivative assets		1,335	1,535
Liabilities:
Total derivative liabilities		(2,556)	(2,287)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Equity contract [Member]
Assets:
Derivative assets		3,580	4,582
Liabilities:
Total derivative liabilities		(4,584)	(3,186)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Foreign exchange contract [Member]
Assets:
Derivative assets		6,291	6,689
Liabilities:
Total derivative liabilities		(7,629)	(7,067)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Credit Risk Contract [Member]
Assets:
Derivative assets		56	179
Liabilities:
Total derivative liabilities		(57)	(216)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Debt securities [Member]
Assets:
Trading debt securities		56,528	49,174
Available-for-sale, at fair value		256,165	257,435
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | US Treasury and Government [Member]
Assets:
Trading debt securities		3,141	2,892
Available-for-sale, at fair value		2,999	2,949
Liabilities:
Total short sale liabilities		(107)	(411)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Trading debt securities		3,273	3,272
Available-for-sale, at fair value		40,150	48,820
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		21	6
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		35,771	30,715
Available-for-sale, at fair value		172,577	160,162
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Federal agencies [Member]
Assets:
Available-for-sale, at fair value		167,535	153,203
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Residential [Member]
Assets:
Available-for-sale, at fair value		853	2,775
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Commercial [Member]
Assets:
Available-for-sale, at fair value		4,189	4,184
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Mortgage backed securities, other [Member]
Liabilities:
Total short sale liabilities		(69)	(47)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities		12,286	10,723
Available-for-sale, at fair value		5,489	5,867
Liabilities:
Total short sale liabilities		(4,820)	(4,505)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities		653	673
Available-for-sale, at fair value		30,401	34,543
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		1,383	893
Available-for-sale, at fair value		4,548	5,093
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, at fair value		860	925
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Home equity loans [Member]
Assets:
Available-for-sale, at fair value		0	112
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, at fair value		3,688	4,056
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Assets:
Available-for-sale, at fair value		1	1
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Equity securities [Member]
Liabilities:
Total short sale liabilities		0	(2)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Equity securities		312	781
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Marketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Marketable equity securities		293	757
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Nonmarketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Nonmarketable equity securities		19	24
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other securities sold, not yet purchased [Member]
Liabilities:
Total short sale liabilities		0	(3)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member]
Assets:
Mortgage loans held for sale		1,249	997
Loans held for sale		1	60
Loans		185	244
Mortgage servicing rights		11,072	14,649
Fair value asset derivatives, netting		0	0
Net amounts in consolidated balance sheet, assets		2,005	1,570
Total assets recorded at fair value		23,400	25,300
Liabilities:
Fair value liability derivatives, netting		0	0
Fair value liability derivatives, net		(2,083)	(1,549)
Total short sale liabilities		0	0
Other liabilities (2)		(2)	(2)
Total liabilities recorded at fair value		(2,085)	(1,551)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Excluding NAV Investments [Member]
Assets:
Total assets recorded at fair value		23,398	25,322
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member]
Assets:
Derivative assets		255	95
Liabilities:
Total derivative liabilities		(112)	(70)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Commodity contract [Member]
Assets:
Derivative assets		3	53
Liabilities:
Total derivative liabilities		(33)	(49)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member]
Assets:
Derivative assets		1,672	1,315
Liabilities:
Total derivative liabilities		(1,875)	(1,332)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Foreign exchange contract [Member]
Assets:
Derivative assets		9	8
Liabilities:
Total derivative liabilities		(35)	(34)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit Risk Contract [Member]
Assets:
Derivative assets		66	99
Liabilities:
Total derivative liabilities		(28)	(64)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Debt securities [Member]
Assets:
Trading debt securities		272	290
Available-for-sale, at fair value		1,484	2,044
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | US Treasury and Government [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		0	0
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Trading debt securities		0	3
Available-for-sale, at fair value		353	444
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		7	16
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		37	41
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Federal agencies [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Residential [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Commercial [Member]
Assets:
Available-for-sale, at fair value		37	41
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Mortgage backed securities, other [Member]
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities		33	34
Available-for-sale, at fair value		367	370
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities		232	237
Available-for-sale, at fair value		609	800
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Collateralized debt obligations [Member]
Assets:
Available-for-sale, at fair value		609	800
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, at fair value		118	389
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Home equity loans [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, at fair value		118	389
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Assets:
Available-for-sale, at fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity securities [Member]
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Equity securities		7,130	5,468
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Marketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Marketable equity securities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Excluding NAV Investments [Member]
Assets:
Nonmarketable equity securities		7,130	5,468
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other securities sold, not yet purchased [Member]
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value measured at net asset value per share [Member] | Nonmarketable equity securities [Member] | Including NAV Investments [Member]
Assets:
Nonmarketable equity securities		$ 144	$ 102
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Fair Value, Assets and Liabil_2

Fair Value, Assets and Liabilities Measured on Recurring Basis Level 3 Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity securities [Member]
Assets:
Balance, beginning of period	$ 7,110	$ 5,806	$ 5,468	$ 5,203
Net gains (losses) included in net income	13	817	1,663	1,510
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	0	(295)	(1)	(391)
Transfers into Level 3	7	0	12	10
Transfers out of Level 3	0	0	(12)	(4)
Balance, end of period	7,130	6,328	7,130	6,328
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	13	770	1,664	1,457
Nonmarketable equity securities [Member]
Assets:
Balance, beginning of period	7,110	5,806	5,468	5,203
Net gains (losses) included in net income	13	817	1,663	1,510
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	0	(295)	(1)	(391)
Transfers into Level 3	7	0	12	10
Transfers out of Level 3	0	0	(12)	(4)
Balance, end of period	7,130	6,328	7,130	6,328
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	13	770	1,664	1,457
Trading debt securities [Member] | Debt securities [Member]
Assets:
Balance, beginning of period	307	347	290	407
Net gains (losses) included in net income	(14)	4	(18)	(2)
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(14)	(19)	8	(72)
Transfers into Level 3	0	0	1	0
Transfers out of Level 3	(7)	(14)	(9)	(15)
Balance, end of period	272	318	272	318
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(12)	4	(20)	4
Trading debt securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Balance, beginning of period	0	3	3	3
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	0	(2)	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	(1)	0
Balance, end of period	0	3	0	3
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	0	0	0
Trading debt securities [Member] | Corporate debt securities [Member]
Assets:
Balance, beginning of period	44	36	34	31
Net gains (losses) included in net income	(2)	2	1	2
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(4)	7	3	13
Transfers into Level 3	0	0	1	0
Transfers out of Level 3	(5)	(10)	(6)	(11)
Balance, end of period	33	35	33	35
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	1	2	3	4
Trading debt securities [Member] | Collateralized loan obligations [Member]
Assets:
Balance, beginning of period	249	291	237	354
Net gains (losses) included in net income	(11)	2	(16)	(2)
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(4)	(26)	13	(85)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	(2)	(4)	(2)	(4)
Balance, end of period	232	263	232	263
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(13)	1	(23)	0
Trading debt securities [Member] | Other trading debt securities [Member]
Assets:
Balance, beginning of period	14	17	16	19
Net gains (losses) included in net income	(1)	0	(3)	(2)
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(6)	0	(6)	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	7	17	7	17
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	1	0	0
Available-for-sale securities [Member] | Debt securities [Member]
Assets:
Balance, beginning of period	1,805	2,493	2,044	2,994
Net gains (losses) included in net income	12	41	27	68
Net gains (losses) included in other comprehensive income	(20)	(39)	(23)	5
Purchases, sales, issuances and settlements, net	(160)	(226)	(362)	(519)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	(153)	0	(202)	(279)
Balance, end of period	1,484	2,269	1,484	2,269
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	(4)	0	(5)
Available-for-sale securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Balance, beginning of period	391	559	444	925
Net gains (losses) included in net income	0	0	1	5
Net gains (losses) included in other comprehensive income	0	(3)	5	(5)
Purchases, sales, issuances and settlements, net	(38)	39	(48)	(51)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	(49)	(279)
Balance, end of period	353	595	353	595
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	0	0	0
Available-for-sale securities [Member] | Mortgage-backed securities [Member]
Assets:
Balance, beginning of period	41	53	41	76
Net gains (losses) included in net income	0	(1)	0	0
Net gains (losses) included in other comprehensive income	(1)	1	(1)	(2)
Purchases, sales, issuances and settlements, net	(3)	(12)	(3)	(33)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	37	41	37	41
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	(1)	0	(2)
Available-for-sale securities [Member] | Residential [Member]
Assets:
Balance, beginning of period	0	0	0	1
Net gains (losses) included in net income	0	0	0	0
Net gains (losses) included in other comprehensive income	0	1	0	0
Purchases, sales, issuances and settlements, net	0	(1)	0	(1)
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 income related to assets and liabilities held at period end	0	0	0	0
Available-for-sale securities [Member] | Commercial [Member]
Assets:
Balance, beginning of period	41	53	41	75
Net gains (losses) included in net income	0	(1)	0	0
Net gains (losses) included in other comprehensive income	(1)	0	(1)	(2)
Purchases, sales, issuances and settlements, net	(3)	(11)	(3)	(32)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	37	41	37	41
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	(1)	0	(2)
Available-for-sale securities [Member] | Corporate debt securities [Member]
Assets:
Balance, beginning of period	383	443	370	407
Net gains (losses) included in net income	6	2	7	4
Net gains (losses) included in other comprehensive income	(8)	(2)	(5)	2
Purchases, sales, issuances and settlements, net	(14)	(55)	(5)	(25)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	367	388	367	388
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	0	0	0
Available-for-sale securities [Member] | Collateralized loan obligations [Member]
Assets:
Balance, beginning of period	649	1,037	800	1,020
Net gains (losses) included in net income	5	44	18	55
Net gains (losses) included in other comprehensive income	(12)	(33)	(22)	20
Purchases, sales, issuances and settlements, net	(33)	(205)	(187)	(252)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	609	843	609	843
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	0	0	0
Available-for-sale securities [Member] | Asset-backed securities [Member]
Assets:
Balance, beginning of period	341	401	389	566
Net gains (losses) included in net income	1	(4)	1	4
Net gains (losses) included in other comprehensive income	1	(2)	0	(10)
Purchases, sales, issuances and settlements, net	(72)	7	(119)	(158)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	(153)	0	(153)	0
Balance, end of period	118	402	118	402
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	(3)	0	(3)
Fair Value Disclosures, Textual [Abstract]
Securities transferred to loans	153		153
Available-for-sale securities [Member] | Other asset-backed securities [Member]
Assets:
Balance, beginning of period	341	401	389	566
Net gains (losses) included in net income	1	(4)	1	4
Net gains (losses) included in other comprehensive income	1	(2)	0	(10)
Purchases, sales, issuances and settlements, net	(72)	7	(119)	(158)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	(153)	0	(153)	0
Balance, end of period	118	402	118	402
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	(3)	0	(3)
Mortgage loans held for sale [Member]
Assets:
Balance, beginning of period	1,115	986	997	998
Net gains (losses) included in net income	22	(12)	74	(46)
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(6)	(8)	(94)	(20)
Transfers into Level 3	121	16	281	56
Transfers out of Level 3	(3)	(2)	(9)	(8)
Balance, end of period	1,249	980	1,249	980
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	22	(12)	75	(42)
Loans held for sale [Member]
Assets:
Balance, beginning of period	12	20	60	14
Net gains (losses) included in net income	0	1	0	2
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(12)	1	(4)	(15)
Transfers into Level 3	1	0	38	21
Transfers out of Level 3	0	0	(93)	0
Balance, end of period	1	22	1	22
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	0	0	0
Loans [Member]
Assets:
Balance, beginning of period	202	321	244	376
Net gains (losses) included in net income	0	0	1	(1)
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(17)	(35)	(60)	(89)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	185	286	185	286
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(2)	(5)	(6)	(9)
Mortgage servicing rights [Member]
Assets:
Balance, beginning of period	12,096	15,411	14,649	13,625
Net gains (losses) included in net income	(1,558)	69	(4,570)	801
Net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	534	500	993	1,554
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	11,072	15,980	11,072	15,980
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(962)	531	(2,931)	2,206
Derivative [Member]
Assets and Liabilities:
Balance, beginning of period	(17)	(345)	21	(378)
Net gains (losses) included in net income	(303)	(109)	(94)	(459)
Total net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	159	133	(52)	462
Transfers into Level 3	0	0	9	3
Transfers out of Level 3	83	6	38	57
Balance, end of period	(78)	(315)	(78)	(315)
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(64)	(80)	(28)	(199)
Derivative [Member] | Interest rate contract [Member]
Assets and Liabilities:
Balance, beginning of period	205	(41)	25	71
Net gains (losses) included in net income	71	(103)	495	(511)
Total net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(133)	36	(377)	332
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	143	(108)	143	(108)
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	30	(43)	179	(163)
Derivative [Member] | Commodity contract [Member]
Assets and Liabilities:
Balance, beginning of period	(29)	26	4	19
Net gains (losses) included in net income	(85)	29	(211)	59
Total net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	61	6	152	(20)
Transfers into Level 3	0	0	2	3
Transfers out of Level 3	23	0	23	0
Balance, end of period	(30)	61	(30)	61
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(6)	38	(6)	60
Derivative [Member] | Equity contract [Member]
Assets and Liabilities:
Balance, beginning of period	(228)	(339)	(17)	(511)
Net gains (losses) included in net income	(298)	(30)	(402)	27
Total net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	263	89	194	153
Transfers into Level 3	0	0	7	0
Transfers out of Level 3	60	6	15	57
Balance, end of period	(203)	(274)	(203)	(274)
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(80)	(74)	(205)	(67)
Derivative [Member] | Foreign exchange contract [Member]
Assets and Liabilities:
Balance, beginning of period	(10)	(15)	(26)	7
Net gains (losses) included in net income	17	(10)	27	(35)
Total net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	(33)	4	(27)	7
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	(26)	(21)	(26)	(21)
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	0	(4)	2	(23)
Derivative [Member] | Credit contract [Member]
Assets and Liabilities:
Balance, beginning of period	45	24	35	36
Net gains (losses) included in net income	(8)	5	(3)	1
Total net gains (losses) included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, net	1	(2)	6	(10)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	38	27	38	27
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	(8)	3	2	(6)
Other liabilities [Member]
Liabilities:
Balance, beginning of period	(2)	(2)	(2)	(3)
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	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	(2)	(2)	(2)	(2)
Net unrealized gains (losses) included in income related to assets and liabilities held at period end	$ 0	$ 0	$ 0	$ 0

Fair Value, Assets and Liabil_3

Fair Value, Assets and Liabilities Measured on Recurring Basis Level 3 Reconciliation Breakout (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity securities [Member]
Assets:
Purchases	$ 0	$ 0	$ 0	$ 0
Sales	0	0	(1)	(17)
Issuances	0	0	0	0
Settlements	0	(295)	0	(374)
Net	0	(295)	(1)	(391)
Nonmarketable equity securities [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	(1)	(17)
Issuances	0	0	0	0
Settlements	0	(295)	0	(374)
Net	0	(295)	(1)	(391)
Trading debt securities [Member] | Debt securities [Member]
Assets:
Purchases	110	83	295	362
Sales	(107)	(71)	(263)	(303)
Issuances	0	0	0	0
Settlements	(17)	(31)	(24)	(131)
Net	(14)	(19)	8	(72)
Trading debt securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	(2)	0
Net	0	0	(2)	0
Trading debt securities [Member] | Corporate debt securities [Member]
Assets:
Purchases	3	8	14	16
Sales	(7)	(1)	(11)	(3)
Issuances	0	0	0	0
Settlements	0	0	0	0
Net	(4)	7	3	13
Trading debt securities [Member] | Collateralized loan obligations [Member]
Assets:
Purchases	107	75	281	346
Sales	(100)	(70)	(252)	(300)
Issuances	0	0	0	0
Settlements	(11)	(31)	(16)	(131)
Net	(4)	(26)	13	(85)
Trading debt securities [Member] | Other trading debt securities [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(6)	0	(6)	0
Net	(6)	0	(6)	0
Available-for-sale securities [Member] | Debt securities [Member]
Assets:
Purchases	1	0	12	31
Sales	(4)	(149)	(9)	(161)
Issuances	22	165	200	233
Settlements	(179)	(242)	(565)	(622)
Net	(160)	(226)	(362)	(519)
Available-for-sale securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	0	(4)
Issuances	12	69	67	79
Settlements	(50)	(30)	(115)	(126)
Net	(38)	39	(48)	(51)
Available-for-sale securities [Member] | Mortgage-backed securities [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(3)	(12)	(3)	(33)
Net	(3)	(12)	(3)	(33)
Available-for-sale securities [Member] | Residential [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	(1)	0	(1)
Net	0	(1)	0	(1)
Available-for-sale securities [Member] | Commercial [Member]
Assets:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(3)	(11)	(3)	(32)
Net	(3)	(11)	(3)	(32)
Available-for-sale securities [Member] | Corporate debt securities [Member]
Assets:
Purchases	1	0	12	31
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(15)	(55)	(17)	(56)
Net	(14)	(55)	(5)	(25)
Available-for-sale securities [Member] | Collateralized loan obligations [Member]
Assets:
Purchases	0	0	0	0
Sales	0	(149)	0	(149)
Issuances	0	0	0	0
Settlements	(33)	(56)	(187)	(103)
Net	(33)	(205)	(187)	(252)
Available-for-sale securities [Member] | Asset-backed securities [Member]
Assets:
Purchases	0	0	0	0
Sales	(4)	0	(9)	(8)
Issuances	10	96	133	154
Settlements	(78)	(89)	(243)	(304)
Net	(72)	7	(119)	(158)
Available-for-sale securities [Member] | Other asset-backed securities [Member]
Assets:
Purchases	0	0	0	0
Sales	(4)	0	(9)	(8)
Issuances	10	96	133	154
Settlements	(78)	(89)	(243)	(304)
Net	(72)	7	(119)	(158)
Mortgage loans held for sale [Member]
Assets:
Purchases	23	17	69	64
Sales	(45)	(89)	(185)	(240)
Issuances	87	104	187	271
Settlements	(71)	(40)	(165)	(115)
Net	(6)	(8)	(94)	(20)
Loans held for sale [Member]
Assets:
Purchases	0	1	12	1
Sales	0	0	(2)	(16)
Issuances	0	0	0	0
Settlements	(12)	0	(14)	0
Net	(12)	1	(4)	(15)
Loans [Member]
Assets:
Purchases	1	2	3	3
Sales	0	0	0	0
Issuances	2	5	7	13
Settlements	(20)	(42)	(70)	(105)
Net	(17)	(35)	(60)	(89)
Mortgage servicing rights [Member]
Assets:
Purchases	0	0	0	0
Sales	(4)	(2)	(286)	(7)
Issuances	538	502	1,279	1,561
Settlements	0	0	0	0
Net	534	500	993	1,554
Derivative [Member]
Assets and Liabilities:
Purchases	4	4	12	12
Sales	(3)	(39)	(6)	(43)
Issuances	(1)	0	(1)	0
Settlements	159	168	(57)	493
Net	159	133	(52)	462
Derivative [Member] | Interest rate contract [Member]
Assets and Liabilities:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	(1)	0	(1)	0
Settlements	(132)	36	(376)	332
Net	(133)	36	(377)	332
Derivative [Member] | Commodity contract [Member]
Assets and Liabilities:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	61	6	152	(20)
Net	61	6	152	(20)
Derivative [Member] | Equity contract [Member]
Assets and Liabilities:
Purchases	0	3	0	3
Sales	0	(37)	0	(37)
Issuances	0	0	0	0
Settlements	263	123	194	187
Net	263	89	194	153
Derivative [Member] | Foreign exchange contract [Member]
Assets and Liabilities:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(33)	4	(27)	7
Net	(33)	4	(27)	7
Derivative [Member] | Credit contract [Member]
Assets and Liabilities:
Purchases	4	1	12	9
Sales	(3)	(2)	(6)	(6)
Issuances	0	0	0	0
Settlements	0	(1)	0	(13)
Net	1	(2)	6	(10)
Other liabilities [Member]
Liabilities:
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Net	$ 0	$ 0	$ 0	$ 0

Fair Value, Assets and Liabil_4

Fair Value, Assets and Liabilities Measured on a Recurring Basis Level 3 Valuation Techniques and Significant Unobservable Inputs (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019USD ($)$ / loan	Dec. 31, 2018USD ($)$ / loan
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 11,072	$ 14,649
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	271,236	269,912
Securities of U.S. states and political subdivisions [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	40,503	49,264
Collateralized loan obligations [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	31,010	35,343
Corporate debt securities [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	5,893	6,271
Collateralized debt obligations [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	609	800
Recurring [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale, carried at fair value	16,945	11,771
Loans	185	244
Mortgage servicing rights	11,072	14,649
Fair Value Disclosures, Textual [Abstract]
Total assets recorded at fair value	433,100	408,360
Total liabilities recorded at fair value	28,240	28,221
Recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale, carried at fair value	1,249	997
Loans	185	244
Mortgage servicing rights	11,072	14,649
Total insignificant level 3 assets, net of liabilities	(13)	93
Assets, fair value disclosure, net of liabilities	21,313	23,771
Fair Value Disclosures, Textual [Abstract]
Total assets recorded at fair value	23,400	25,300
Total liabilities recorded at fair value	2,085	1,551
Recurring [Member] | Fair value, inputs, level 3 [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale, carried at fair value	15	15
Recurring [Member] | Fair value, inputs, level 3 [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale, carried at fair value	1,234	982
Loans	185	244
Mortgage servicing rights	$ 11,072	$ 14,649
Recurring [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	(0.563)	(0.563)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.030	0.011
Loans, measurement input	0.039	0.034
Servicing asset, measurement input	0.059	0.071
Recurring [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, default rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0	0
Loans, measurement input	0	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, cost of service per loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Servicing asset, measurement input | $ / loan	63	62
Recurring [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, prepayment rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.055	0.032
Loans, measurement input	0.060	0.029
Servicing asset, measurement input	0.099	0.090
Recurring [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	(0.063)	(0.063)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.056	0.066
Loans, measurement input	0.043	0.064
Servicing asset, measurement input	0.125	0.153
Recurring [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, default rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.167	0.156
Recurring [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.444	0.433
Loans, measurement input	0.346	0.348
Recurring [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, cost of service per loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Servicing asset, measurement input | $ / loan	455	507
Recurring [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, prepayment rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.146	0.134
Loans, measurement input	1	1
Servicing asset, measurement input	0.255	0.235
Recurring [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	(0.372)	(0.363)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.042	0.055
Loans, measurement input	0.041	0.042
Servicing asset, measurement input	0.069	0.081
Recurring [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, default rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.008	0.008
Recurring [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.225	0.234
Loans, measurement input	0.131	0.102
Recurring [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, cost of service per loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Servicing asset, measurement input | $ / loan	102	106
Recurring [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, prepayment rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.078	0.046
Loans, measurement input	0.857	0.872
Servicing asset, measurement input	0.124	0.099
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and liabilities	$ 111	$ (35)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, default rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.500	0.500
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, prepayment rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.028	0.028
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, default rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.050	0.050
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.500	0.500
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, prepayment rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.250	0.250
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, default rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.017	0.020
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.500	0.500
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contract [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, prepayment rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.150	0.138
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and liabilities	$ 32	$ 60
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, fall-out factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.010	0.010
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, initial-value servicing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	(0.00315)	(0.00366)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, fall-out factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.990	0.990
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, initial-value servicing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.01970	0.00917
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, fall-out factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.187	0.194
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, initial-value servicing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.00167	0.00185
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and liabilities	$ 143	$ 104
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Option model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and liabilities	$ (346)	$ (121)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, weighted average life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative, term of contract	9 months 18 days	1 year
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, conversion factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	(0.089)	(0.093)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Minimum [Member] | Option model [Member] | Measurement input, correlation factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	(0.770)	(0.770)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Minimum [Member] | Option model [Member] | Measurement input, price volatility [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.065	0.065
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, weighted average life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative, term of contract	3 years 3 months 18 days	3 years
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, conversion factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Maximum [Member] | Option model [Member] | Measurement input, correlation factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.990	0.990
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Maximum [Member] | Option model [Member] | Measurement input, price volatility [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	1.286	1
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, weighted average life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative, term of contract	1 year 8 months 12 days	1 year 9 months 18 days
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, conversion factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	(0.081)	(0.078)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Weighted Average [Member] | Option model [Member] | Measurement input, correlation factor [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.250	0.216
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contract [Member] | Weighted Average [Member] | Option model [Member] | Measurement input, price volatility [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.237	0.218
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and liabilities	$ 3	$ 3
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Option model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and liabilities	$ 35	$ 32
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Minimum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	(0.395)	(0.155)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Minimum [Member] | Option model [Member] | Measurement input, credit spread [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.001	0.009
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Minimum [Member] | Option model [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.130	0.130
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Maximum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.113	0.400
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Maximum [Member] | Option model [Member] | Measurement input, credit spread [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.234	0.215
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Maximum [Member] | Option model [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.600	0.600
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Weighted Average [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	(0.068)	0.035
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Weighted Average [Member] | Option model [Member] | Measurement input, credit spread [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.010	0.013
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contract [Member] | Weighted Average [Member] | Option model [Member] | Measurement input, loss severity [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Derivative asset (liability) net, measurement input	0.461	0.452
Recurring [Member] | Non modified loans [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, cost of service per loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Servicing asset, measurement input | $ / loan	63	62
Recurring [Member] | Non modified loans [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, cost of service per loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Servicing asset, measurement input | $ / loan	204	204
Recurring [Member] | Debt securities [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	$ 271,236	$ 269,912
Recurring [Member] | Debt securities [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	1,484	2,044
Recurring [Member] | Securities of U.S. states and political subdivisions [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	40,503	49,264
Recurring [Member] | Securities of U.S. states and political subdivisions [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	353	444
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	315	404
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, vendor pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	$ 38	$ 43
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.015	0.021
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.058	0.064
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.026	0.034
Recurring [Member] | Collateralized loan obligations [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	$ 31,010	$ 35,343
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	609	800
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	232	298
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, vendor pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	$ 609	$ 739
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.115)	(0.135)
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.205	0.221
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.024	0.032
Recurring [Member] | Corporate debt securities [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	$ 5,893	$ 6,271
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	367	370
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	55	56
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	220	220
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, vendor pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	$ 125	$ 128
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.186)	(0.113)
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.020	0.040
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.121	0.166
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.149	0.117
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.043)	(0.014)
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.087	0.085
Recurring [Member] | Asset-backed securities [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	$ 4,666	$ 5,482
Recurring [Member] | Asset-backed securities [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	118	389
Recurring [Member] | Other asset-backed securities [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	3,806	4,445
Recurring [Member] | Other asset-backed securities [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	118	389
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	$ 107	$ 171
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.023	0.034
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.039	0.062
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.029	0.044
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale		$ 198
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, vendor pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Debt securities, trading and available-for-sale	$ 11	$ 20
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input		0.046
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Discounted cash flow [Member] | Measurement input, weighted average life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, trading and available-for-sale, term		1 year 1 month 6 days
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input		0.052
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Discounted cash flow [Member] | Measurement input, weighted average life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, trading and available-for-sale, term		1 year 6 months
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, discount rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input		0.047
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Discounted cash flow [Member] | Measurement input, weighted average life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, trading and available-for-sale, term		1 year 1 month 6 days
Recurring [Member] | Collateralized debt obligations [Member] | Fair value, inputs, level 3 [Member]
Fair Value Disclosures, Textual [Abstract]
Available-for-sale, at fair value	609	$ 800
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 7,130	$ 5,468
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Minimum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(21.00%)	(20.60%)
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Maximum [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(5.40%)	(4.30%)
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Weighted Average [Member] | Market comparable pricing [Member] | Measurement input, comparability adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(15.70%)	(15.80%)

Fair Value, Assets Recorded at

Fair Value, Assets Recorded at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 89,724	$ 79,850
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	5,664	2,446
Loans held for sale	26	313
Loans	416	686
Other assets	153	155
Total assets recorded at fair value	7,596	4,531
Nonrecurring [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	1,337	931
Nonrecurring [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	222	339
Nonrecurring [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	194	347
Nonrecurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0	0
Loans held for sale	0	0
Loans	0	0
Other assets	0	0
Total assets recorded at fair value	0	0
Nonrecurring [Member] | Level 1 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	0	0
Nonrecurring [Member] | Level 1 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Nonrecurring [Member] | Level 1 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	2,129	1,213
Loans held for sale	26	313
Loans	415	685
Other assets	153	149
Total assets recorded at fair value	3,958	3,134
Nonrecurring [Member] | Level 2 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	1,235	774
Nonrecurring [Member] | Level 2 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	222	339
Nonrecurring [Member] | Level 2 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	193	346
Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	3,535	1,233
Loans held for sale	0	0
Loans	1	1
Other assets	0	6
Total assets recorded at fair value	3,638	1,397
Nonrecurring [Member] | Level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	102	157
Nonrecurring [Member] | Level 3 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Nonrecurring [Member] | Level 3 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 1	$ 1

Fair Value, Changes in Fair Val

Fair Value, Changes in Fair Value of Assets Recorded at Fair Value on Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Mortgage loans held for sale (LOCOM)	$ 14	$ 7
Loans held for sale	(2)	(46)
Loans	(349)	(416)
Nonmarketable equity securities	379	206
Other assets	(29)	(36)
Total	13	(285)
Total Commercial [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	(181)	(175)
Total Consumer [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	$ (168)	$ (241)

Fair Value, Assets Recorded a_2

Fair Value, Assets Recorded at Fair Value on a Nonrecurring Basis Level 3 Valuation Techniques and Significant Unobservable Inputs (Details) - Nonrecurring [Member] - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	$ 5,664	$ 2,446
Total assets recorded at fair value	7,596	4,531
Residential [Member] | Non-government insured/guaranteed [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	2,200	27
Residential [Member] | Government insured or guaranteed [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	1,300	1,200
Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 1,337	$ 931
Measurement input, default rate [Member] | Discounted cash flow [Member] | Minimum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	0.10%	0.20%
Measurement input, default rate [Member] | Discounted cash flow [Member] | Maximum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	53.90%	2.30%
Measurement input, default rate [Member] | Discounted cash flow [Member] | Weighted Average [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	3.20%	1.40%
Measurement input, discount rate [Member] | Discounted cash flow [Member] | Minimum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	1.50%	1.50%
Measurement input, discount rate [Member] | Discounted cash flow [Member] | Minimum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.00%	10.50%
Measurement input, discount rate [Member] | Discounted cash flow [Member] | Maximum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	9.20%	8.50%
Measurement input, discount rate [Member] | Discounted cash flow [Member] | Maximum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.00%	10.50%
Measurement input, discount rate [Member] | Discounted cash flow [Member] | Weighted Average [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	4.40%	4.00%
Measurement input, discount rate [Member] | Discounted cash flow [Member] | Weighted Average [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.00%	10.50%
Measurement input, loss severity [Member] | Discounted cash flow [Member] | Minimum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	0.40%	0.50%
Measurement input, loss severity [Member] | Discounted cash flow [Member] | Maximum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	100.00%	66.00%
Measurement input, loss severity [Member] | Discounted cash flow [Member] | Weighted Average [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	24.70%	1.70%
Measurement input, prepayment rate [Member] | Discounted cash flow [Member] | Minimum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	5.20%	3.50%
Measurement input, prepayment rate [Member] | Discounted cash flow [Member] | Maximum [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	100.00%	100.00%
Measurement input, prepayment rate [Member] | Discounted cash flow [Member] | Weighted Average [Member] | Residential [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale (residential), measurement input	22.40%	46.50%
Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	$ 3,535	$ 1,233
Insignificant level 3 assets	103	157
Total assets recorded at fair value	3,638	1,397
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	102	157
Fair value, inputs, level 3 [Member] | Discounted cash flow [Member] | Residential [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	3,535	1,233
Fair value, inputs, level 3 [Member] | Discounted cash flow [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 0	$ 7

Fair Value, Option, Carrying Am

Fair Value, Option, Carrying Amount (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]
Equity securities, carried at fair value	$ 38,368	$ 29,556
Fair value option election [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans held for sale	16,945	11,771
Loans held for sale	1,501	1,469
Loans	185	244
Fair value option election [Member] | Mortgage loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans held for sale	16,945	11,771
Mortgage loans held for sale, unpaid principal	16,560	11,573
Loans, Loans held for sale and mortgage loans held for sale, aggregate difference	385	198
Nonaccrual loans	133	127
Nonaccrual loans, unpaid principal	155	158
Nonaccrual loans, aggregate difference	(22)	(31)
Loans 90 days or more past due and still accruing	10	7
Loans 90 days or more past due and still accruing, unpaid principal	12	9
Loans 90 days or more past due and still accruing, aggregate difference	(2)	(2)
Fair value option election [Member] | Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale	1,501	1,469
Loans held for sale, unpaid principal	1,541	1,536
Loans, Loans held for sale and mortgage loans held for sale, aggregate difference	(40)	(67)
Nonaccrual loans	65	21
Nonaccrual loans, unpaid principal	70	32
Nonaccrual loans, aggregate difference	(5)	(11)
Fair value option election [Member] | Loans [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans	185	244
Loans, unpaid principal	214	274
Loans, Loans held for sale and mortgage loans held for sale, aggregate difference	(29)	(30)
Nonaccrual loans	139	179
Nonaccrual loans, unpaid principal	168	208
Nonaccrual loans, aggregate difference	$ (29)	$ (29)

Fair Value, Option, Changes in

Fair Value, Option, Changes in Fair Value Included in Earnings (Details) - Fair value option election [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Mortgage banking noninterest income [Member] | Mortgage loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	$ 256	$ 183	$ 849	$ 238
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 [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
Net gains (losses) from trading activities [Member] | Mortgage 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 held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	5	3	15	18
Net gains (losses) from trading activities [Member] | Loans [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	(1)	0	(3)	(2)
Other noninterest income [Member] | Mortgage loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	0	0	0	0
Other noninterest income [Member] | Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	1	1	2	1
Other noninterest income [Member] | Loans [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	0	0	1	(1)
Other 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

Fair Value, Option, Gains_Losse

Fair Value, Option, Gains/Losses Attributable to Instrument Specific Credit Risk (Details) - Fair value option election [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) attributable to instrument-specific credit risk	$ (8)	$ 2	$ 15	$ 16
Mortgage loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) attributable to instrument-specific credit risk	(13)	(1)	(1)	(2)
Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) attributable to instrument-specific credit risk	$ 5	$ 3	$ 16	$ 18

Fair Value, Estimates for Finan

Fair Value, Estimates for Financial Instruments Excluding those Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Financial assets
Cash and due from banks		$ 22,401	$ 23,551
Interest-earning deposits with banks		126,330	149,736
Federal funds sold and securities purchased under resale agreements		103,051	80,207
Held-to-maturity debt securities		153,179	144,788
Loans	[1]	954,915	953,110
Financial liabilities
Deposits		1,308,495	1,286,170
Short-term borrowings		123,908	105,787
Long-term debt		230,651	229,044
Mortgage loans [Member]
Financial assets
Loans held for sale	[1]	25,448	15,126
Loans and finance receivables, excluding mortgage receivable [Member]
Financial assets
Loans held for sale	[1]	1,532	2,041
Commercial lease financing receivable [Member]
Financial assets
Loans		19,600	19,696
Carrying amount [Member]
Financial assets
Cash and due from banks		22,401	23,551
Interest-earning deposits with banks		126,330	149,736
Federal funds sold and securities purchased under resale agreements		103,051	80,207
Held-to-maturity debt securities		153,179	144,788
Loans		925,750	923,703
Nonmarketable equity securities		5,021	5,643
Financial assets fair value disclosure		1,344,266	1,331,555
Financial liabilities
Deposits		135,422	130,645
Short-term borrowings		123,908	105,787
Long-term debt		230,616	229,008
Financial liabilities fair value disclosure		489,946	465,440
Fair Value Disclosures, Textual [Abstract]
Deposit liabilities with no defined or contractual maturity		1,200,000	1,200,000
Capital lease obligations		35	36
Carrying amount [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		8,503	3,355
Carrying amount [Member] | Loans and finance receivables, excluding mortgage receivable [Member]
Financial assets
Loans held for sale		31	572
Carrying amount [Member] | Commercial lease financing receivable [Member]
Financial assets
Loans		19,300	19,700
Estimated fair value [Member]
Financial assets
Cash and due from banks		22,401	23,551
Interest-earning deposits with banks		126,330	149,736
Federal funds sold and securities purchased under resale agreements		103,051	80,207
Held-to-maturity debt securities		156,279	142,115
Loans		935,261	917,915
Nonmarketable equity securities		5,055	5,675
Financial assets fair value disclosure		1,358,003	1,323,133
Financial liabilities
Deposits		135,763	130,089
Short-term borrowings		123,869	105,789
Long-term debt		232,138	228,134
Financial liabilities fair value disclosure		491,770	464,012
Fair Value Disclosures, Textual [Abstract]
Loan commitments and standby, commercial and similar letters of credit		1,000	1,000
Estimated fair value [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		9,595	3,362
Estimated fair value [Member] | Loans and finance receivables, excluding mortgage receivable [Member]
Financial assets
Loans held for sale		31	572
Estimated fair value [Member] | Fair value, inputs, level 1 [Member]
Financial assets
Cash and due from banks		22,401	23,551
Interest-earning deposits with banks		126,093	149,542
Federal funds sold and securities purchased under resale agreements		0	0
Held-to-maturity debt securities		45,463	44,339
Loans		0	0
Nonmarketable equity securities		0	0
Financial assets fair value disclosure		193,957	217,432
Financial liabilities
Deposits		0	0
Short-term borrowings		0	0
Long-term debt		0	0
Financial liabilities fair value disclosure		0	0
Estimated fair value [Member] | Fair value, inputs, level 1 [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		0	0
Estimated fair value [Member] | Fair value, inputs, level 1 [Member] | Loans and finance receivables, excluding mortgage receivable [Member]
Financial assets
Loans held for sale		0	0
Estimated fair value [Member] | Fair value, inputs, level 2 [Member]
Financial assets
Cash and due from banks		0	0
Interest-earning deposits with banks		237	194
Federal funds sold and securities purchased under resale agreements		103,051	80,207
Held-to-maturity debt securities		110,187	97,275
Loans		52,666	45,190
Nonmarketable equity securities		0	0
Financial assets fair value disclosure		271,176	225,567
Financial liabilities
Deposits		102,538	107,448
Short-term borrowings		123,869	105,789
Long-term debt		230,355	225,904
Financial liabilities fair value disclosure		456,762	439,141
Estimated fair value [Member] | Fair value, inputs, level 2 [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		5,004	2,129
Estimated fair value [Member] | Fair value, inputs, level 2 [Member] | Loans and finance receivables, excluding mortgage receivable [Member]
Financial assets
Loans held for sale		31	572
Estimated fair value [Member] | Fair value, inputs, level 3 [Member]
Financial assets
Cash and due from banks		0	0
Interest-earning deposits with banks		0	0
Federal funds sold and securities purchased under resale agreements		0	0
Held-to-maturity debt securities		629	501
Loans		882,595	872,725
Nonmarketable equity securities		5,055	5,675
Financial assets fair value disclosure		892,870	880,134
Financial liabilities
Deposits		33,225	22,641
Short-term borrowings		0	0
Long-term debt		1,783	2,230
Financial liabilities fair value disclosure		35,008	24,871
Estimated fair value [Member] | Fair value, inputs, level 3 [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		4,591	1,233
Estimated fair value [Member] | Fair value, inputs, level 3 [Member] | Loans and finance receivables, excluding mortgage receivable [Member]
Financial assets
Loans held for sale		$ 0	$ 0
[1]	(1) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Preferred Stock (Details)

Preferred Stock (Details) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2019USD ($)$ / sharesshares	Sep. 30, 2019USD ($)vote$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares
Detail of Preferred Stock [Abstract]
Preferred Stock, Shares authorized and designated | shares	9,251,728	9,251,728	9,586,770
ESOP, Liquidation preference per share | $ / shares	$ 0	$ 0	$ 0
ESOP, Shares authorized and designated | shares	1,071,418	1,071,418	1,406,460
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	7,492,169	7,492,169	9,377,216
Voting Rights		If issued, preference shares would be limited to one vote per share
Preferred Stock, Liquidation Preference, Value	$ 22,573	$ 22,573	$ 24,458
Carrying value	21,549	21,549	23,214
Discount	$ 1,024	$ 1,024	$ 1,244
ESOP Shares issued and outstanding | shares	1,071,418	1,071,418	1,406,460
ESOP Liquidation preference value	$ 1,072	$ 1,072	$ 1,407
ESOP Carrying value	1,072	1,072	1,407
ESOP Discount	$ 0	$ 0	$ 0
Preferred Stock, No Voting Rights [Member]
Class of Stock [Line Items]
Preferred shares authorized | shares	20,000,000	20,000,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, Par or Stated Value	$ 0	$ 0
Preferred Stock, Voting Rights [Member]
Class of Stock [Line Items]
Preferred shares authorized | shares	4,000,000	4,000,000
Number of votes per share | vote		1
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	0	0
Preferred Stock, Par or Stated Value	$ 0	$ 0
Dividend Equalization Preferred Shares (DEP) [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 10	$ 10	$ 10
Preferred Stock, Shares authorized and designated | shares	97,000	97,000	97,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	96,546	96,546	96,546
Preferred Stock, Liquidation Preference, Value	$ 0	$ 0	$ 0
Carrying value	0	0	0
Discount	$ 0	$ 0	$ 0
Series I - Floating Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend Payment Rate, Variable		the greater of three-month LIBOR plus 0.93% and 5.56975%	the greater of three-month LIBOR plus 0.93% and 5.56975%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 100,000	$ 100,000	$ 100,000
Preferred Stock, Shares authorized and designated | shares	25,010	25,010	25,010
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	25,010	25,010	25,010
Preferred Stock, Liquidation Preference, Value	$ 2,501	$ 2,501	$ 2,501
Carrying value	2,501	2,501	2,501
Discount	$ 0	$ 0	$ 0
Series K - Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Class of Stock [Line Items]
Stock Redeemed or Called During Period, Shares | shares	1,550,000
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend Payment Rate, Variable		three-month LIBOR plus 3.77%	three-month LIBOR plus 3.77%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 1,000	$ 1,000	$ 1,000
Preferred Stock, Shares authorized and designated | shares	3,500,000	3,500,000	3,500,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	1,802,000	1,802,000	3,352,000
Preferred Stock, Liquidation Preference, Value	$ 1,802	$ 1,802	$ 3,352
Carrying value	1,546	1,546	2,876
Discount	$ 256	$ 256	$ 476
Series L - 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		7.50%	7.50%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 1,000	$ 1,000	$ 1,000
Preferred Stock, Shares authorized and designated | shares	4,025,000	4,025,000	4,025,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	3,967,995	3,967,995	3,968,000
Preferred Stock, Liquidation Preference, Value	$ 3,968	$ 3,968	$ 3,968
Carrying value	3,200	3,200	3,200
Discount	$ 768	$ 768	$ 768
Series N - 5.20% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.20%	5.20%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	30,000	30,000	30,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	30,000	30,000	30,000
Preferred Stock, Liquidation Preference, Value	$ 750	$ 750	$ 750
Carrying value	750	750	750
Discount	$ 0	$ 0	$ 0
Series O - 5.125% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.125%	5.125%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	27,600	27,600	27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	26,000	26,000	26,000
Preferred Stock, Liquidation Preference, Value	$ 650	$ 650	$ 650
Carrying value	650	650	650
Discount	$ 0	$ 0	$ 0
Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.25%	5.25%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	26,400	26,400	26,400
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	25,000	25,000	25,000
Preferred Stock, Liquidation Preference, Value	$ 625	$ 625	$ 625
Carrying value	625	625	625
Discount	$ 0	$ 0	$ 0
Series Q - 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.85%	5.85%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	69,000	69,000	69,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	69,000	69,000	69,000
Preferred Stock, Liquidation Preference, Value	$ 1,725	$ 1,725	$ 1,725
Carrying value	1,725	1,725	1,725
Discount	$ 0	$ 0	$ 0
Series R - 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		6.625%	6.625%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	34,500	34,500	34,500
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	33,600	33,600	33,600
Preferred Stock, Liquidation Preference, Value	$ 840	$ 840	$ 840
Carrying value	840	840	840
Discount	$ 0	$ 0	$ 0
Series S - 5.900% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.90%	5.90%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	80,000	80,000	80,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	80,000	80,000	80,000
Preferred Stock, Liquidation Preference, Value	$ 2,000	$ 2,000	$ 2,000
Carrying value	2,000	2,000	2,000
Discount	$ 0	$ 0	$ 0
Series T - 6.000% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		6.00%	6.00%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	32,200	32,200	32,200
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	32,000	32,000	32,000
Preferred Stock, Liquidation Preference, Value	$ 800	$ 800	$ 800
Carrying value	800	800	800
Discount	$ 0	$ 0	$ 0
Series U - 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.875%	5.875%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	80,000	80,000	80,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	80,000	80,000	80,000
Preferred Stock, Liquidation Preference, Value	$ 2,000	$ 2,000	$ 2,000
Carrying value	2,000	2,000	2,000
Discount	$ 0	$ 0	$ 0
Series V - 6.000% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		6.00%	6.00%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	40,000	40,000	40,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	40,000	40,000	40,000
Preferred Stock, Liquidation Preference, Value	$ 1,000	$ 1,000	$ 1,000
Carrying value	1,000	1,000	1,000
Discount	$ 0	$ 0	$ 0
Series W - 5.700% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.70%	5.70%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	40,000	40,000	40,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	40,000	40,000	40,000
Preferred Stock, Liquidation Preference, Value	$ 1,000	$ 1,000	$ 1,000
Carrying value	1,000	1,000	1,000
Discount	$ 0	$ 0	$ 0
Series X - 5.500% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.50%	5.50%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	46,000	46,000	46,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	46,000	46,000	46,000
Preferred Stock, Liquidation Preference, Value	$ 1,150	$ 1,150	$ 1,150
Carrying value	1,150	1,150	1,150
Discount	$ 0	$ 0	$ 0
Series Y - 5.625% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, Dividend rate (percent)		5.625%	5.625%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares	$ 25,000	$ 25,000	$ 25,000
Preferred Stock, Shares authorized and designated | shares	27,600	27,600	27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares	27,600	27,600	27,600
Preferred Stock, Liquidation Preference, Value	$ 690	$ 690	$ 690
Carrying value	690	690	690
Discount	$ 0	$ 0	$ 0

ESOP Preferred Stock (Details)

ESOP Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Additional paid-in capital included related to preferred stock	$ 71	$ 95
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	1,071,418	1,406,460
Carrying value	$ 1,072	$ 1,407
Unearned ESOP shares	$ (1,143)	$ (1,502)
Employee Stock Ownership Plan Preferred Stock 2018 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	254,945	336,945
Carrying value	$ 255	$ 337
Employee Stock Ownership Plan Preferred Stock 2018 [Member] | Minimum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	7.00%	7.00%
Employee Stock Ownership Plan Preferred Stock 2018 [Member] | Maximum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	8.00%	8.00%
Employee Stock Ownership Plan Preferred Stock 2017 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	192,210	222,210
Carrying value	$ 192	$ 222
Employee Stock Ownership Plan Preferred Stock 2017 [Member] | Minimum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	7.00%	7.00%
Employee Stock Ownership Plan Preferred Stock 2017 [Member] | Maximum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	8.00%	8.00%
Employee Stock Ownership Plan Preferred Stock 2016 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	197,450	233,835
Carrying value	$ 198	$ 234
Employee Stock Ownership Plan Preferred Stock 2016 [Member] | Minimum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	9.30%	9.30%
Employee Stock Ownership Plan Preferred Stock 2016 [Member] | Maximum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	10.30%	10.30%
Employee Stock Ownership Plan Preferred Stock 2015 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	116,784	144,338
Carrying value	$ 117	$ 144
Employee Stock Ownership Plan Preferred Stock 2015 [Member] | Minimum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	8.90%	8.90%
Employee Stock Ownership Plan Preferred Stock 2015 [Member] | Maximum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	9.90%	9.90%
Employee Stock Ownership Plan Preferred Stock 2014 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	136,151	174,151
Carrying value	$ 136	$ 174
Employee Stock Ownership Plan Preferred Stock 2014 [Member] | Minimum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	8.70%	8.70%
Employee Stock Ownership Plan Preferred Stock 2014 [Member] | Maximum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate	9.70%	9.70%
Employee Stock Ownership Plan Preferred Stock 2013 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	97,948	133,948
Carrying value	$ 98	$ 134
Employee Stock Ownership Plan Preferred Stock 2013 [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 2013 [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 2012 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	49,134	77,634
Carrying value	$ 49	$ 78
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 2011 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	26,796	61,796
Carrying value	$ 27	$ 62
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 2010 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	0	21,603
Carrying value	$ 0	$ 22
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%
Equity Award [Member] | Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, redemption price per share	$ 1,000

Revenue from Contracts with C_3

Revenue from Contracts with Customers, Revenue by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	$ 11,625	$ 12,572	$ 36,031	$ 37,351
Mortgage banking	466	846	1,932	2,550
Insurance	91	104	280	320
Net gains (losses) from trading activities	276	158	862	592
Net gains on debt securities	3	57	148	99
Net gains from equity securities	956	416	2,392	1,494
Lease income	402	453	1,269	1,351
Other income of the segment (1)	1,528	633	2,846	1,720
Total noninterest income	10,385	9,369	29,172	28,077
Revenue	22,010	21,941	65,203	65,428
Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,219	1,204	3,519	3,540
Trust and investment fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	3,559	3,631	10,500	10,989
Brokerage advisory, commissions and other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,346	2,334	6,857	7,091
Trust and investment management
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	729	835	2,310	2,520
Investment banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	484	462	1,333	1,378
Card fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,027	1,017	2,996	2,926
Other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	858	850	2,428	2,496
Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	349	370	1,045	1,126
Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	118	121	344	367
Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	170	129	356	323
Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	121	120	355	357
All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	100	110	328	323
Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	(515)	(594)	(1,630)	(1,804)
Mortgage banking	2	1	6	5
Insurance	(11)	(12)	(31)	(33)
Net gains (losses) from trading activities	0	0	1	0
Net gains on debt securities	0	0	0	0
Net gains from equity securities	0	0	0	0
Lease income	0	0	0	0
Other income of the segment (1)	(78)	(75)	(232)	(226)
Total noninterest income	(797)	(811)	(2,349)	(2,419)
Revenue	(1,312)	(1,405)	(3,979)	(4,223)
Other [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(4)	(4)	(11)	(12)
Other [Member] | Trust and investment fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(702)	(718)	(2,070)	(2,142)
Other [Member] | Brokerage advisory, commissions and other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(492)	(483)	(1,434)	(1,442)
Other [Member] | Trust and investment management
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(210)	(235)	(632)	(700)
Other [Member] | Investment banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	(4)	0
Other [Member] | Card fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(1)	(3)	(3)
Other [Member] | Other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(3)	(2)	(9)	(8)
Other [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(1)	(5)	(5)
Other [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	0	0
Other [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	0	0
Other [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(1)	(3)	(3)
Other [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	0	(1)	0
Community Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	6,769	7,338	21,083	21,879
Mortgage banking	339	747	1,635	2,284
Insurance	11	21	33	65
Net gains (losses) from trading activities	19	10	13	33
Net gains on debt securities	(1)	1	51	(1)
Net gains from equity securities	822	274	1,894	1,367
Lease income	0	0	0	0
Other income of the segment (1)	605	772	2,342	2,115
Total noninterest income	4,470	4,478	13,711	13,573
Revenue	11,239	11,816	34,794	35,452
Community Banking [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	742	700	2,056	1,971
Community Banking [Member] | Trust and investment fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	681	684	1,981	2,070
Community Banking [Member] | Brokerage advisory, commissions and other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	504	470	1,433	1,413
Community Banking [Member] | Trust and investment management
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	203	231	612	684
Community Banking [Member] | Investment banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(26)	(17)	(64)	(27)
Community Banking [Member] | Card fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	936	925	2,723	2,650
Community Banking [Member] | Other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	316	344	983	1,019
Community Banking [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	58	67	188	212
Community Banking [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	118	121	344	364
Community Banking [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	0	0
Community Banking [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	71	67	206	197
Community Banking [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	69	89	245	246
Wholesale Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	4,382	4,726	13,451	13,951
Mortgage banking	128	101	300	269
Insurance	74	76	227	233
Net gains (losses) from trading activities	247	135	806	514
Net gains on debt securities	4	53	97	96
Net gains from equity securities	135	50	328	232
Lease income	402	453	1,269	1,351
Other income of the segment (1)	(230)	(58)	(497)	(142)
Total noninterest income	2,560	2,578	7,667	7,829
Revenue	6,942	7,304	21,118	21,780
Wholesale Banking [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	477	505	1,462	1,569
Wholesale Banking [Member] | Trust and investment fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	693	667	1,963	1,960
Wholesale Banking [Member] | Brokerage advisory, commissions and other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	62	79	214	224
Wholesale Banking [Member] | Trust and investment management
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	121	112	352	335
Wholesale Banking [Member] | Investment banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	510	476	1,397	1,401
Wholesale Banking [Member] | Card fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	90	92	271	275
Wholesale Banking [Member] | Other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	540	504	1,441	1,472
Wholesale Banking [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	290	303	856	914
Wholesale Banking [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	0	3
Wholesale Banking [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	170	129	356	323
Wholesale Banking [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	49	52	146	157
Wholesale Banking [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	31	20	83	75
Wealth and Investment Management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	989	1,102	3,127	3,325
Mortgage banking	(3)	(3)	(9)	(8)
Insurance	17	19	51	55
Net gains (losses) from trading activities	10	13	42	45
Net gains on debt securities	0	3	0	4
Net gains from equity securities	(1)	92	170	(105)
Lease income	0	0	0	0
Other income of the segment (1)	1,231	(6)	1,233	(27)
Total noninterest income	4,152	3,124	10,143	9,094
Revenue	5,141	4,226	13,270	12,419
Wealth and Investment Management [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	4	3	12	12
Wealth and Investment Management [Member] | Trust and investment fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,887	2,998	8,626	9,101
Wealth and Investment Management [Member] | Brokerage advisory, commissions and other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,272	2,268	6,644	6,896
Wealth and Investment Management [Member] | Trust and investment management
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	615	727	1,978	2,201
Wealth and Investment Management [Member] | Investment banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	3	4	4
Wealth and Investment Management [Member] | Card fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2	1	5	4
Wealth and Investment Management [Member] | Other fees
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	5	4	13	13
Wealth and Investment Management [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2	1	6	5
Wealth and Investment Management [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	0	0
Wealth and Investment Management [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0	0	0
Wealth and Investment Management [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2	2	6	6
Wealth and Investment Management [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	$ 1	$ 1	$ 1	$ 2

Revenue from Contracts with C_4

Revenue from Contracts with Customers, Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Fee income	$ 1,219	$ 1,204	$ 3,519	$ 3,540
Overdraft fees
Disaggregation of Revenue [Line Items]
Fee income	535	485	1,451	1,317
Account charges
Disaggregation of Revenue [Line Items]
Fee income	684	719	2,068	2,223
Brokerage advisory, commissions and other fees
Disaggregation of Revenue [Line Items]
Fee income	2,346	2,334	6,857	7,091
Asset-based revenue (1)
Disaggregation of Revenue [Line Items]
Fee income	1,740	1,720	5,018	5,185
Trailing commissions
Disaggregation of Revenue [Line Items]
Fee income	289	323	858	975
Transactional revenue
Disaggregation of Revenue [Line Items]
Fee income	381	395	1,171	1,246
Other revenue
Disaggregation of Revenue [Line Items]
Fee income	225	219	668	660
Trust and investment management
Disaggregation of Revenue [Line Items]
Fee income	729	835	2,310	2,520
Investment management fees
Disaggregation of Revenue [Line Items]
Fee income	510	520	1,488	1,585
Trust fees
Disaggregation of Revenue [Line Items]
Fee income	184	257	679	786
Other revenue
Disaggregation of Revenue [Line Items]
Fee income	35	58	143	149
Card fees
Disaggregation of Revenue [Line Items]
Fee income	1,027	1,017	2,996	2,926
Credit card interchange and network revenues (1)
Disaggregation of Revenue [Line Items]
Fee income	293	310	873	876
Credit card rewards and rebates
Disaggregation of Revenue [Line Items]
Other cost of revenue	383	335	1,100	1,000
Debit card interchange and network revenues
Disaggregation of Revenue [Line Items]
Fee income	548	523	1,601	1,527
Late fees, cash advance fees, balance transfer fees, and annual fees
Disaggregation of Revenue [Line Items]
Fee income	186	184	522	523
Other [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Fee income	(4)	(4)	(11)	(12)
Other [Member] | Overdraft fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Other [Member] | Account charges
Disaggregation of Revenue [Line Items]
Fee income	(4)	(4)	(11)	(12)
Other [Member] | Brokerage advisory, commissions and other fees
Disaggregation of Revenue [Line Items]
Fee income	(492)	(483)	(1,434)	(1,442)
Other [Member] | Asset-based revenue (1)
Disaggregation of Revenue [Line Items]
Fee income	(382)	(372)	(1,094)	(1,108)
Other [Member] | Transactional revenue
Disaggregation of Revenue [Line Items]
Fee income	(92)	(94)	(288)	(286)
Other [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	(18)	(17)	(52)	(48)
Other [Member] | Trust and investment management
Disaggregation of Revenue [Line Items]
Fee income	(210)	(235)	(632)	(700)
Other [Member] | Investment management fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Other [Member] | Trust fees
Disaggregation of Revenue [Line Items]
Fee income	(210)	(235)	(632)	(700)
Other [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Other [Member] | Card fees
Disaggregation of Revenue [Line Items]
Fee income	(1)	(1)	(3)	(3)
Other [Member] | Credit card interchange and network revenues (1)
Disaggregation of Revenue [Line Items]
Fee income	(1)	(1)	(3)	(3)
Other [Member] | Debit card interchange and network revenues
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Other [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Community Banking [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Fee income	742	700	2,056	1,971
Community Banking [Member] | Overdraft fees
Disaggregation of Revenue [Line Items]
Fee income	533	484	1,446	1,312
Community Banking [Member] | Account charges
Disaggregation of Revenue [Line Items]
Fee income	209	216	610	659
Community Banking [Member] | Brokerage advisory, commissions and other fees
Disaggregation of Revenue [Line Items]
Fee income	504	470	1,433	1,413
Community Banking [Member] | Asset-based revenue (1)
Disaggregation of Revenue [Line Items]
Fee income	381	371	1,093	1,107
Community Banking [Member] | Transactional revenue
Disaggregation of Revenue [Line Items]
Fee income	105	82	288	258
Community Banking [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	18	17	52	48
Community Banking [Member] | Trust and investment management
Disaggregation of Revenue [Line Items]
Fee income	203	231	612	684
Community Banking [Member] | Investment management fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Community Banking [Member] | Trust fees
Disaggregation of Revenue [Line Items]
Fee income	203	229	612	682
Community Banking [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	0	2	0	2
Community Banking [Member] | Card fees
Disaggregation of Revenue [Line Items]
Fee income	936	925	2,723	2,650
Community Banking [Member] | Credit card interchange and network revenues (1)
Disaggregation of Revenue [Line Items]
Fee income	202	218	600	600
Community Banking [Member] | Debit card interchange and network revenues
Disaggregation of Revenue [Line Items]
Fee income	548	523	1,601	1,527
Community Banking [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees
Disaggregation of Revenue [Line Items]
Fee income	186	184	522	523
Wholesale Banking [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Fee income	477	505	1,462	1,569
Wholesale Banking [Member] | Overdraft fees
Disaggregation of Revenue [Line Items]
Fee income	2	1	4	4
Wholesale Banking [Member] | Account charges
Disaggregation of Revenue [Line Items]
Fee income	475	504	1,458	1,565
Wholesale Banking [Member] | Brokerage advisory, commissions and other fees
Disaggregation of Revenue [Line Items]
Fee income	62	79	214	224
Wholesale Banking [Member] | Asset-based revenue (1)
Disaggregation of Revenue [Line Items]
Fee income	0	1	0	1
Wholesale Banking [Member] | Transactional revenue
Disaggregation of Revenue [Line Items]
Fee income	(8)	19	18	47
Wholesale Banking [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	70	59	196	176
Wholesale Banking [Member] | Trust and investment management
Disaggregation of Revenue [Line Items]
Fee income	121	112	352	335
Wholesale Banking [Member] | Investment management fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Wholesale Banking [Member] | Trust fees
Disaggregation of Revenue [Line Items]
Fee income	85	82	250	250
Wholesale Banking [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	36	30	102	85
Wholesale Banking [Member] | Card fees
Disaggregation of Revenue [Line Items]
Fee income	90	92	271	275
Wholesale Banking [Member] | Credit card interchange and network revenues (1)
Disaggregation of Revenue [Line Items]
Fee income	90	92	271	275
Wholesale Banking [Member] | Debit card interchange and network revenues
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Wholesale Banking [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Wealth and Investment Management [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Fee income	4	3	12	12
Wealth and Investment Management [Member] | Overdraft fees
Disaggregation of Revenue [Line Items]
Fee income	0	0	1	1
Wealth and Investment Management [Member] | Account charges
Disaggregation of Revenue [Line Items]
Fee income	4	3	11	11
Wealth and Investment Management [Member] | Brokerage advisory, commissions and other fees
Disaggregation of Revenue [Line Items]
Fee income	2,272	2,268	6,644	6,896
Wealth and Investment Management [Member] | Asset-based revenue (1)
Disaggregation of Revenue [Line Items]
Fee income	1,741	1,720	5,019	5,185
Wealth and Investment Management [Member] | Transactional revenue
Disaggregation of Revenue [Line Items]
Fee income	376	388	1,153	1,227
Wealth and Investment Management [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	155	160	472	484
Wealth and Investment Management [Member] | Trust and investment management
Disaggregation of Revenue [Line Items]
Fee income	615	727	1,978	2,201
Wealth and Investment Management [Member] | Investment management fees
Disaggregation of Revenue [Line Items]
Fee income	510	520	1,488	1,585
Wealth and Investment Management [Member] | Trust fees
Disaggregation of Revenue [Line Items]
Fee income	106	181	449	554
Wealth and Investment Management [Member] | Other revenue
Disaggregation of Revenue [Line Items]
Fee income	(1)	26	41	62
Wealth and Investment Management [Member] | Card fees
Disaggregation of Revenue [Line Items]
Fee income	2	1	5	4
Wealth and Investment Management [Member] | Credit card interchange and network revenues (1)
Disaggregation of Revenue [Line Items]
Fee income	2	1	5	4
Wealth and Investment Management [Member] | Debit card interchange and network revenues
Disaggregation of Revenue [Line Items]
Fee income	0	0	0	0
Wealth and Investment Management [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees
Disaggregation of Revenue [Line Items]
Fee income	$ 0	$ 0	$ 0	$ 0

Employee Benefits, Components o

Employee Benefits, Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		123 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019
Qualified Plan [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 3	$ 2	$ 9	$ 5
Interest cost	105	97	314	293
Expected return on plan assets	(142)	(160)	(426)	(481)
Amortization of net actuarial loss (gain)	37	32	111	98
Amortization of prior service credit	0	0	0	0
Settlement loss	0	0	0	0
Net periodic benefit cost (income)	3	(29)	8	(85)
Nonqualified Plan [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0	0	0
Interest cost	5	5	16	16
Expected return on plan assets	0	0	0	0
Amortization of net actuarial loss (gain)	3	4	8	10
Amortization of prior service credit	0	0	0	0
Settlement loss	0	0	2	3
Net periodic benefit cost (income)	8	9	26	29
Other benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0	0	0
Interest cost	6	6	17	16
Expected return on plan assets	(7)	(8)	(21)	(23)
Amortization of net actuarial loss (gain)	(5)	(4)	(13)	(13)
Amortization of prior service credit	(2)	(3)	(7)	(8)
Settlement loss	0	0	0	0
Net periodic benefit cost (income)	$ (8)	$ (9)	$ (24)	$ (28)
Cash Balance Plan [Member]
Components of net periodic benefit cost [Abstract]
Net periodic benefit cost (income)					$ 0

Earnings and Dividends Per Co_2

Earnings and Dividends Per Common Share, Calculation of Earnings and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Common Share [Abstract]
Wells Fargo net income	$ 4,610	$ 6,007	$ 16,676	$ 16,329
Less: Preferred stock dividends and other	573	554	1,284	1,351
Wells Fargo net income applicable to common stock (numerator)	$ 4,037	$ 5,453	$ 15,392	$ 14,978
Earnings per common share
Average common shares outstanding (denominator)	4,358.5	4,784	4,459.1	4,844.8
Per share	$ 0.93	$ 1.14	$ 3.45	$ 3.09
Diluted earnings per common share
Average common shares outstanding (in shares)	4,358.5	4,784	4,459.1	4,844.8
Diluted average common shares outstanding (denominator)	4,389.6	4,823.2	4,489.5	4,885
Per share	$ 0.92	$ 1.13	$ 3.43	$ 3.07
Stock Option [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	0.1	7.5	1	8.5
Restricted Share Rights [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	31	26.5	29.4	25.9
Warrants [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	0	5.2	0	5.8
Series K [Member]
Earnings per Common Share, Basic and Diluted [Line items]
Preferred Stock, Accretion of Redemption Discount	$ 220		$ 220
Series J [Member]
Earnings per Common Share, Basic and Diluted [Line items]
Preferred Stock, Accretion of Redemption Discount		$ 155		$ 155

Earnings Per Common Share, Anti

Earnings Per Common Share, Antidilutive Securities Excluded from the Calculation of Diluted Earnings per Common Share (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Series L [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Instruments	25.3	25.3	25.3	25.3
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Instruments	0	0	0	0.4

Earnings and Dividends Per Co_3

Earnings and Dividends Per Common Share Dividends Declared Per Common Shares (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Dividends declared per common share (in dollars per share)	$ 0.51	$ 0.43	$ 1.41	$ 1.21

Other Comprehensive Income, Com

Other Comprehensive Income, Components of Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt securities:
Net unrealized gains (losses) arising during the period, before tax	$ 652	$ (1,468)	$ 5,192	$ (5,528)
Net unrealized gains (losses) arising during the period, tax effect	(159)	360	(1,276)	1,360
Net unrealized gains (losses) arising during the period, net of tax	493	(1,108)	3,916	(4,168)
Reclassification of net (gains) losses to net income, before tax	76	51	34	168
Reclassification of net (gains) losses to net income, tax effect	(20)	(12)	(9)	(41)
Reclassification of net (gains) losses to net income, net of tax	56	39	25	127
Net change, before tax	728	(1,417)	5,226	(5,360)
Net change, tax effect	(179)	348	(1,285)	1,319
Net change, net of tax	549	(1,069)	3,941	(4,041)
Cash Flow Hedges:
Reclassification of net losses to net income on cash flow hedges, before tax	75	79	233	216
Net change, before tax	85	55	265	(200)
Net change, tax effect	(22)	(14)	(66)	49
Net change, net of tax	63	41	199	(151)
Defined benefit plans adjustments:
Net actuarial and prior service gains (losses) arising during the period, before tax	0	0	(4)	6
Net actuarial and prior service gains (losses) arising during the period, tax effect	0	0	1	(2)
Net actuarial and prior service gains (losses) arising during the period, net of tax	0	0	(3)	4
Amortization of net actuarial loss, before tax	35	32	106	95
Amortization of net actuarial loss, tax effect	(9)	(8)	(26)	(23)
Amortization of net actuarial loss, net of tax	26	24	80	72
Settlements and other, before tax	(2)	(3)	(5)	(5)
Settlements and other, tax effect	1	2	3	3
Settlements and other, net of tax	(1)	(1)	(2)	(2)
Reclassification of amounts to non interest expense, before tax	33	29	101	90
Reclassification of amounts to non interest expense, tax effect	(8)	(6)	(23)	(20)
Reclassification of amounts to non interest expense, net of tax	25	23	78	70
Net change, before tax	33	29	97	96
Net change, tax effect	(8)	(6)	(22)	(22)
Net change, net of tax	25	23	75	74
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period, before tax	(53)	(9)	3	(94)
Net unrealized gains (losses) arising during the period, tax effect	1	2	(2)	0
Net unrealized gains (losses) arising during the period, net of tax	(52)	(7)	1	(94)
Net change, before tax	(53)	(9)	3	(94)
Net change, tax effect	1	2	(2)	0
Net change, net of tax	(52)	(7)	1	(94)
Other comprehensive income (loss), before tax	793	(1,342)	5,591	(5,558)
Other comprehensive income (loss), tax effect	(208)	330	(1,375)	1,346
Other comprehensive income (loss), net of tax	585	(1,012)	4,216	(4,212)
Less: Other comprehensive loss from noncontrolling interests	0	0	0	(1)
Wells Fargo other comprehensive income (loss), net of tax	585	(1,012)	4,216	(4,211)
Cash flow hedging [Member]
Cash Flow Hedges:
Net unrealized losses arising during the period on cash flow hedges, before tax	(18)	(3)	(26)	(269)
Net unrealized losses arising during the period on cash flow hedges, tax	4	0	6	66
Net unrealized losses arising during the period on cash flow hedges, net of tax	(14)	(3)	(20)	(203)
Reclassification of net losses to net income on cash flow hedges, before tax	75	79	233	216
Reclassification of net losses to net income on cash flow hedges, tax	(19)	(19)	(58)	(53)
Reclassification of net losses to net income on cash flow hedges, net of tax	56	60	175	163
Fair value hedging [Member]
Fair Value Hedges:
Change in fair value of excluded components on fair value hedges, before tax	28	(21)	58	(147)
Change in fair value of excluded components on fair value hedges, tax	(7)	5	(14)	36
Change in fair value of excluded components on fair value hedges, net of tax	21	(16)	44	(111)
Interest expense on long-term debt [Member] | Cash flow hedging [Member]
Cash Flow Hedges:
Reclassification of net losses to net income on cash flow hedges, before tax	2	1	5	1
Reclassification of net losses to net income on cash flow hedges, tax	0	0	(1)	0
Reclassification of net losses to net income on cash flow hedges, net of tax	2	1	4	1
Other noninterest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, before tax	2	(1)	(1)	(1)
Reclassification of net (gains) losses to net income, tax effect	(1)	0	0	0
Reclassification of net (gains) losses to net income, net of tax	1	(1)	(1)	(1)
Debt securities [Member] | Interest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, before tax	77	109	183	268
Reclassification of net (gains) losses to net income, tax effect	(19)	(27)	(45)	(66)
Reclassification of net (gains) losses to net income, net of tax	58	82	138	202
Debt securities [Member] | Net gains on debt securities [Member]
Debt securities:
Reclassification of net (gains) losses to net income, before tax	(3)	(57)	(148)	(99)
Reclassification of net (gains) losses to net income, tax effect	0	15	36	25
Reclassification of net (gains) losses to net income, net of tax	(3)	(42)	(112)	(74)
Loans [Member] | Interest income [Member] | Cash flow hedging [Member]
Cash Flow Hedges:
Reclassification of net losses to net income on cash flow hedges, before tax	73	78	228	215
Reclassification of net losses to net income on cash flow hedges, tax	(19)	(19)	(57)	(53)
Reclassification of net losses to net income on cash flow hedges, net of tax	$ 54	$ 59	$ 171	$ 162

Other Comprehensive Income, Cum

Other Comprehensive Income, Cumulative OCI Balances (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
Cumulative OCI balances [Abstract]
Balance, beginning of period	$ 200,037	$ 206,069	$ 197,066	$ 208,079
Balance, beginning of period adjusted balance						$ 197,055	$ 208,055
Other comprehensive income (loss), net of tax	585	(1,012)	4,216	(4,212)
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	1
Balance, end of period	194,416	199,679	194,416	199,679
Accounting Standards Update 2017-08 [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Transition Adjustment					$ (111)
Cumulative other comprehensive income [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(2,224)	(5,461)	(6,336)	(2,144)
Balance, beginning of period adjusted balance						(5,855)	(2,262)
Reclassification of certain tax effects to retained earnings		(400)		(400)
Net unrealized gains (losses) arising during the period	448	(1,134)	3,938	(4,572)
Amounts reclassified from accumulated other comprehensive income	137	122	278	360
Other comprehensive income (loss), net of tax	585	(1,412)	4,216	(4,612)
Balance, end of period	(1,639)	(6,873)	(1,639)	(6,873)
Cumulative other comprehensive income [Member] | Accounting Standards Update 2017-08 [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Transition Adjustment						481
Cumulative other comprehensive income [Member] | Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Transition Adjustment							(118)
Debt securities, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	751	(2,919)	(3,122)	171
Balance, beginning of period adjusted balance						(2,641)	53
Reclassification of certain tax effects to retained earnings		31		31
Net unrealized gains (losses) arising during the period	493	(1,108)	3,916	(4,168)
Amounts reclassified from accumulated other comprehensive income	56	39	25	127
Other comprehensive income (loss), net of tax	549	(1,038)	3,941	(4,010)
Balance, end of period	1,300	(3,957)	1,300	(3,957)
Debt securities, parent [Member] | Accounting Standards Update 2017-08 [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Transition Adjustment						481
Debt securities, parent [Member] | Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Transition Adjustment							(118)
Derivative and hedging activities, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(549)	(610)	(685)	(418)
Balance, beginning of period adjusted balance						(685)	(418)
Reclassification of certain tax effects to retained earnings		(87)		(87)
Net unrealized gains (losses) arising during the period	7	(19)	24	(314)
Amounts reclassified from accumulated other comprehensive income	56	60	175	163
Other comprehensive income (loss), net of tax	63	(46)	199	(238)
Balance, end of period	(486)	(656)	(486)	(656)
Defined benefit plans adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(2,246)	(1,757)	(2,296)	(1,808)
Balance, beginning of period adjusted balance						(2,296)	(1,808)
Reclassification of certain tax effects to retained earnings		(353)		(353)
Net unrealized gains (losses) arising during the period	0	0	(3)	4
Amounts reclassified from accumulated other comprehensive income	25	23	78	70
Other comprehensive income (loss), net of tax	25	(330)	75	(279)
Balance, end of period	(2,221)	(2,087)	(2,221)	(2,087)
Foreign currency translation adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(180)	(175)	(233)	(89)
Balance, beginning of period adjusted balance						(233)	(89)
Reclassification of certain tax effects to retained earnings		9		9
Net unrealized gains (losses) arising during the period	(52)	(7)	1	(94)
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Other comprehensive income (loss), net of tax	(52)	2	1	(85)
Balance, end of period	(232)	(173)	(232)	(173)
Noncontrolling Interest [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	995	881	900	1,143
Balance, beginning of period adjusted balance						$ 900	$ 1,143
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	(1)
Balance, end of period	1,112	938	1,112	938
AOCI Attributable to Noncontrolling Interest [Member]
Cumulative OCI balances [Abstract]
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	(1)
Debt securities, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	0
Derivative and hedging activities, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	0
Defined benefit plans adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Less: Other comprehensive income (loss) from noncontrolling interests	0	0	0	0
Foreign currency translation adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Less: Other comprehensive income (loss) from noncontrolling interests	$ 0	$ 0	$ 0	$ (1)

Operating Segments (Details)

Operating Segments (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)segment	Sep. 30, 2018USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments | segment			3
Financial Information of Operating Segment [Abstract]
Net interest income	$ 11,625	$ 12,572	$ 36,031	$ 37,351
Provision (reversal of provision) for credit losses	695	580	2,043	1,223
Noninterest income	10,385	9,369	29,172	28,077
Noninterest expense	15,199	13,763	42,564	42,787
Income before income tax expense	6,116	7,598	20,596	21,418
Income tax expense (benefit)	1,304	1,512	3,479	4,696
Net income before noncontrolling interests	4,812	6,086	17,117	16,722
Less: Net income from noncontrolling interests	202	79	441	393
Wells Fargo net income	4,610	6,007	16,676	16,329
Average loans	949,800	939,500	949,100	944,800
Average assets	1,927,400	1,876,300	1,903,900	1,892,200
Average Deposits	1,291,400	1,266,400	1,274,200	1,278,200
Other [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	(515)	(594)	(1,630)	(1,804)
Provision (reversal of provision) for credit losses	(8)	1	(14)	6
Noninterest income	(797)	(811)	(2,349)	(2,419)
Noninterest expense	(887)	(882)	(2,692)	(2,698)
Income before income tax expense	(417)	(524)	(1,273)	(1,531)
Income tax expense (benefit)	(104)	(132)	(318)	(383)
Net income before noncontrolling interests	(313)	(392)	(955)	(1,148)
Less: Net income from noncontrolling interests	0	0	0	0
Wells Fargo net income	(313)	(392)	(955)	(1,148)
Average loans	(59,400)	(58,800)	(59,200)	(58,800)
Average assets	(60,400)	(59,600)	(60,200)	(59,600)
Average Deposits	(62,700)	(67,900)	(63,900)	(70,800)
Community Banking [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	6,769	7,338	21,083	21,879
Provision (reversal of provision) for credit losses	608	547	1,797	1,249
Noninterest income	4,470	4,478	13,711	13,573
Noninterest expense	8,766	7,467	23,667	23,459
Income before income tax expense	1,865	3,802	9,330	10,744
Income tax expense (benefit)	667	925	1,929	3,147
Net income before noncontrolling interests	1,198	2,877	7,401	7,597
Less: Net income from noncontrolling interests	199	61	432	372
Wells Fargo net income	999	2,816	6,969	7,225
Average loans	459,000	460,900	458,300	465,000
Average assets	1,033,900	1,024,900	1,024,800	1,040,200
Average Deposits	789,700	760,900	777,700	756,400
Wholesale Banking [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	4,382	4,726	13,451	13,951
Provision (reversal of provision) for credit losses	92	26	254	(30)
Noninterest income	2,560	2,578	7,667	7,829
Noninterest expense	3,889	3,935	11,609	12,132
Income before income tax expense	2,961	3,343	9,255	9,678
Income tax expense (benefit)	315	475	1,049	1,302
Net income before noncontrolling interests	2,646	2,868	8,206	8,376
Less: Net income from noncontrolling interests	2	17	3	15
Wells Fargo net income	2,644	2,851	8,203	8,361
Average loans	474,300	462,800	474,900	464,200
Average assets	869,200	827,200	855,400	827,600
Average Deposits	422,000	413,600	414,100	424,400
Wealth and Investment Management [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	989	1,102	3,127	3,325
Provision (reversal of provision) for credit losses	3	6	6	(2)
Noninterest income	4,152	3,124	10,143	9,094
Noninterest expense	3,431	3,243	9,980	9,894
Income before income tax expense	1,707	977	3,284	2,527
Income tax expense (benefit)	426	244	819	630
Net income before noncontrolling interests	1,281	733	2,465	1,897
Less: Net income from noncontrolling interests	1	1	6	6
Wells Fargo net income	1,280	732	2,459	1,891
Average loans	75,900	74,600	75,100	74,400
Average assets	84,700	83,800	83,900	84,000
Average Deposits	$ 142,400	$ 159,800	$ 146,300	$ 168,200

Regulatory and Agency Capital_3

Regulatory and Agency Capital Requirements (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Parent Company [Member]
Supplementary leverage:
Total Leverage Exposure	$ 2,240,106	$ 2,174,564
Supplementary Leverage Ratio	7.36%	7.72%
Parent Company [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 144,739	$ 146,363
Tier 1	164,872	167,866
Total	194,526	198,798
Assets:
Risk-weighted assets	1,218,519	1,177,350
Adjusted average	$ 1,898,590	$ 1,850,299
Regulatory capital ratios:
Common equity tier 1 capital	11.88%	12.43%
Tier 1 capital	13.53%	14.26%
Total capital	15.96%	16.89%
Tier 1 leverage	8.68%	9.07%
Parent Company [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 144,739	$ 146,363
Tier 1	164,872	167,866
Total	202,480	207,041
Assets:
Risk-weighted assets	1,246,238	1,247,210
Adjusted average	$ 1,898,590	$ 1,850,299
Regulatory capital ratios:
Common equity tier 1 capital	11.61%	11.74%
Tier 1 capital	13.23%	13.46%
Total capital	16.25%	16.60%
Tier 1 leverage	8.68%	9.07%
Wells Fargo Bank, NA [Member]
Supplementary leverage:
Total Leverage Exposure	$ 1,993,756	$ 1,957,276
Supplementary Leverage Ratio	7.29%	7.29%
Wells Fargo Bank, NA [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 145,265	$ 142,685
Tier 1	145,265	142,685
Total	157,212	155,558
Assets:
Risk-weighted assets	1,096,348	1,058,653
Adjusted average	$ 1,674,518	$ 1,652,009
Regulatory capital ratios:
Common equity tier 1 capital	13.25%	13.48%
Tier 1 capital	13.25%	13.48%
Total capital	14.34%	14.69%
Tier 1 leverage	8.68%	8.64%
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 145,265	$ 142,685
Tier 1	145,265	142,685
Total	164,736	163,380
Assets:
Risk-weighted assets	1,149,329	1,154,182
Adjusted average	$ 1,674,518	$ 1,652,009
Regulatory capital ratios:
Common equity tier 1 capital	12.64%	12.36%
Tier 1 capital	12.64%	12.36%
Total capital	14.33%	14.16%
Tier 1 leverage	8.68%	8.64%

Regulatory and Agency Capital_4

Regulatory and Agency Capital Requirements Minimum Required Regulatory Capital Ratios – Transition Requirements (Details)	Sep. 30, 2019	Dec. 31, 2018
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	9.00%	7.875%
Tier 1 capital	10.50%	9.375%
Total capital	12.50%	11.375%
Tier 1 leverage	4.00%	4.00%
Supplementary leverage	5.00%	5.00%
Capital Conservation Buffer	2.50%
GSIB Surcharge	2.00%
Wells Fargo Bank, NA [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	7.00%	6.375%
Tier 1 capital	8.50%	7.875%
Total capital	10.50%	9.875%
Tier 1 leverage	4.00%	4.00%
Supplementary leverage	6.00%	6.00%
Capital Conservation Buffer	2.50%