Wells Fargo & Company (WFC) 10-Q 5 May 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 24, 2020
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	Mar. 31, 2020
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	94104
City Area Code	866
Local Phone Number	249-3302
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		4,099,997,545
Entity Central Index Key	0000072971
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Common Stock, par value $1-2/3
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $1-2/3
Trading Symbol	WFC
Security Exchange Name	NYSE
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
Non-Cumulative Perpetual Class A Preferred Stock, Series Z [Member]
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 Z
Trading Symbol	WFC.PRZ
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	WFC/TP
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
	Mar. 31, 2020	Mar. 31, 2019
Interest income
Debt securities	$ 3,472	$ 3,941
Mortgage loans held for sale	197	152
Loans held for sale	12	24
Loans	10,065	11,354
Equity securities	206	210
Other interest income	775	1,322
Total interest income	14,727	17,003
Interest expense
Deposits	1,742	2,026
Short-term borrowings	291	596
Long-term debt	1,240	1,927
Other interest expense	142	143
Total interest expense	3,415	4,692
Net interest income	11,312	12,311
Provision for credit losses, debt securities	172	0	[1]
Provision for credit losses, loans	3,833	845
Net interest income after provision for credit losses	7,307	11,466
Noninterest income
Mortgage banking	379	708
Insurance	95	96
Net gains from trading activities	64	357
Net gains on debt securities	237	125
Net gains (losses) from equity securities	(1,401)	814
Lease income	352	443
Other	372	574
Total noninterest income	6,405	9,298
Noninterest expense
Salaries	4,721	4,425
Commission and incentive compensation	2,463	2,845
Employee benefits	1,130	1,938
Technology and equipment	661	661
Net occupancy	715	717
Core deposit and other intangibles	23	28
FDIC and other deposit assessments	118	159
Other	3,217	3,143
Total noninterest expense	13,048	13,916
Income before income tax expense	664	6,848
Income tax expense	159	881
Net income before noncontrolling interests	505	5,967
Less: Net income (loss) from noncontrolling interests	(148)	107
Wells Fargo net income	653	5,860
Less: Preferred stock dividends and other	611	353
Wells Fargo net income applicable to common stock	$ 42	$ 5,507
Per share information
Earnings per common share (in dollars per share)	$ 0.01	$ 1.21
Diluted earnings per common share (in dollars per share)	$ 0.01	$ 1.20
Average common shares outstanding (in shares)	4,104.8	4,551.5
Diluted average common shares outstanding (in shares)	4,135.3	4,584
Service charges on deposit accounts [Member]
Noninterest income
Fee income	$ 1,209	$ 1,094
Trust and investment fees [Member]
Noninterest income
Fee income	3,574	3,373
Card fees [Member]
Noninterest income
Fee income	892	944
Other fees [Member]
Noninterest income
Fee income	$ 632	$ 770
[1]	(1) Prior to our adoption of Accounting Standards Update (ASU) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL) , on January 1, 2020, provision for credit losses from debt securities was not applicable and is therefore presented as $0 for the prior period. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

Consolidated Statement of Inc_2

Consolidated Statement of Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Provision for credit losses, debt securities	$ 172	$ 0	[1]
[1]	(1) Prior to our adoption of Accounting Standards Update (ASU) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL) , on January 1, 2020, provision for credit losses from debt securities was not applicable and is therefore presented as $0 for the prior period. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Wells Fargo net income	$ 653	$ 5,860
Debt securities:
Net unrealized gains (losses) arising during the period	(110)	2,831
Reclassification of net gains to net income	(172)	(81)
Derivative and hedging activities:
Net unrealized gains (losses) arising during the period	124	(35)
Reclassification of net losses to net income	58	79
Defined benefit plans adjustments:
Net actuarial and prior service gains (losses) arising during the period	3	(4)
Amortization of net actuarial loss, settlements and other to net income	36	35
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period	(194)	42
Other comprehensive income (loss), before tax	(255)	2,867
Income tax benefit (expense) related to other comprehensive income	1	(694)
Other comprehensive income (loss), net of tax	(254)	2,173
Total comprehensive income	251	8,140
Total Wells Fargo stockholders' equity [Member]
Foreign currency translation adjustments:
Other comprehensive income (loss), net of tax	(253)	2,173
Total comprehensive income	400	8,033
Noncontrolling Interest [Member]
Foreign currency translation adjustments:
Other comprehensive income (loss), net of tax	(1)	0
Total comprehensive income	$ (149)	$ 107

Consolidated Balance Sheet (Una

Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and due from banks		$ 22,738	$ 21,757
Interest-earning deposits with banks		128,071	119,493
Total cash, cash equivalents, and restricted cash		150,809	141,250
Federal funds sold and securities purchased under resale agreements		86,465	102,140
Trading, at fair value		80,425	79,733
Available-for-sale, fair value		251,229	263,459	[1]
Held-to-maturity, at amortized cost, net of allowance for credit losses		169,909	153,933	[1]
Loans	[2]	1,009,843	962,265
Allowance for loan losses		(11,263)	(9,551)
Net loans		998,580	952,714
Mortgage servicing rights:
Measured at fair value		8,126	11,517
Amortized		1,406	1,430
Premises and equipment, net		9,108	9,309
Goodwill		26,381	26,390
Derivative assets		25,023	14,203
Equity securities	[2]	54,047	68,241
Other assets		96,163	78,917
Total assets	[3]	1,981,349	1,927,555
Liabilities
Noninterest-bearing deposits		379,678	344,496
Interest-bearing deposits		996,854	978,130
Total deposits		1,376,532	1,322,626
Short-term borrowings		92,289	104,512
Derivative liabilities		15,618	9,079
Accrued expenses and other liabilities		76,238	75,163
Long-term debt		237,342	228,191
Total liabilities	[4]	1,798,019	1,739,571
Wells Fargo stockholders’ equity:
Preferred stock		21,347	21,549
Common stock		9,136	9,136
Additional paid-in capital		59,849	61,049
Retained earnings		165,308	166,697
Cumulative other comprehensive income (loss)		(1,564)	(1,311)
Treasury stock		(70,215)	(68,831)
Unearned ESOP shares		(1,143)	(1,143)
Total Wells Fargo stockholders’ equity		182,718	187,146
Noncontrolling interests		612	838
Total equity		183,330	187,984
Total liabilities and equity		1,981,349	1,927,555
Mortgage loans [Member]
Assets
Loans held for sale	[2]	21,795	23,342
Loans, excluding mortgage loans [Member]
Assets
Loans held for sale	[2]	$ 1,883	$ 977
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.
[2]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.
[3]	(3) Our consolidated assets at March 31, 2020 , and December 31, 2019 , 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, $19 million and $16 million ; Interest-earning deposits with banks, $0 million and $284 million ; Debt securities, $616 million and $540 million ; Net loans, $13.1 billion and $13.2 billion ; Derivative assets, $6 million and $1 million ; Equity securities, $95 million and $118 million ; Other assets, $258 million and $239 million ; and Total assets, $14.1 billion and $14.4 billion , respectively.
[4]	(4) Our consolidated liabilities at March 31, 2020 , and December 31, 2019 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $300 million and $401 million ; Derivative liabilities, $8 million and $3 million ; Accrued expenses and other liabilities, $230 million and $235 million ; Long-term debt, $235 million and $587 million ; and Total liabilities, $773 million and $1.2 billion , respectively.

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Assets
Available-for-sale, at amortized cost, net of allowance for credit losses		$ 248,187	$ 260,060
Allowance for credit loss, available-for-sale debt securities		161	0
Allowance for credit loss, held-to-maturity debt securities		11	0
Held-to-maturity, at fair value		177,562	156,860
Equity securities, carried at fair value		28,176	41,936
Cash and due from banks		22,738	21,757
Interest-earning deposits with banks		128,071	119,493
Debt securities, net of allowance for credit losses		418,096
Loans	[1]	1,009,843	962,265
Derivative assets		25,023	14,203
Equity securities	[1]	54,047	68,241
Other assets		96,163	78,917
Assets	[2]	1,981,349	1,927,555
Liabilities
Short-term borrowings		92,289	104,512
Derivative liabilities		15,618	9,079
Accrued expenses and other liabilities		76,238	75,163
Long-term debt		237,342	228,191
Liabilities	[3]	$ 1,798,019	$ 1,739,571
Wells Fargo stockholders’ equity:
Common stock, par value (in dollars per share)		$ 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		1,385,401,170	1,347,385,537
Fair value option election [Member]
Assets
Mortgage loans held for sale, carried at fair value		$ 16,665	$ 16,606
Loans held for sale, carried at fair value		1,673	972
Loans, carried at fair value		160	171
Carrying amount [Member]
Assets
Cash and due from banks		22,738	21,757
Interest-earning deposits with banks		128,071	119,493
Liabilities
Short-term borrowings		92,289	104,512
Long-term debt		237,311	228,159
VIEs that we consolidate [Member]
Assets
Assets		14,208	14,505
VIEs that we consolidate [Member] | Carrying amount [Member]
Assets
Cash and due from banks		19	16
Interest-earning deposits with banks		0	284
Debt securities, net of allowance for credit losses		616	540
Loans		13,102	13,170
Derivative assets		6	1
Equity securities		95	118
Other assets		258	239
Assets		14,096	14,368
Liabilities
Short-term borrowings		500	401
Derivative liabilities		8	3
Accrued expenses and other liabilities		231	235
Long-term debt		235	587
Liabilities		974	1,226
VIEs that we consolidate [Member] | Carrying amount [Member] | Nonrecourse [Member]
Liabilities
Short-term borrowings		300	401
Derivative liabilities		8	3
Accrued expenses and other liabilities		230	235
Long-term debt		235	587
Liabilities		$ 773	$ 1,200
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.
[2]	(3) Our consolidated assets at March 31, 2020 , and December 31, 2019 , 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, $19 million and $16 million ; Interest-earning deposits with banks, $0 million and $284 million ; Debt securities, $616 million and $540 million ; Net loans, $13.1 billion and $13.2 billion ; Derivative assets, $6 million and $1 million ; Equity securities, $95 million and $118 million ; Other assets, $258 million and $239 million ; and Total assets, $14.1 billion and $14.4 billion , respectively.
[3]	(4) Our consolidated liabilities at March 31, 2020 , and December 31, 2019 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $300 million and $401 million ; Derivative liabilities, $8 million and $3 million ; Accrued expenses and other liabilities, $230 million and $235 million ; Long-term debt, $235 million and $587 million ; and Total liabilities, $773 million and $1.2 billion , respectively.

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity (Unaudited) - USD ($) $ in Millions		Total	Cumulative effect from change in accounting policies, period of adoption adjustment [Member]	Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Total Wells Fargo stockholders' equity [Member]	Total Wells Fargo stockholders' equity [Member]Cumulative effect from change in accounting policies, period of adoption adjustment [Member]	Total Wells Fargo stockholders' equity [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Preferred stock [Member]	Preferred stock [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Common stock [Member]	Common stock [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Additional paid-in capital [Member]	Additional paid-in capital [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Retained earnings [Member]	Retained earnings [Member]Cumulative effect from change in accounting policies, period of adoption adjustment [Member]	Retained earnings [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Cumulative other comprehensive income, parent [Member]	Cumulative other comprehensive income, parent [Member]Cumulative effect from change in accounting policies, period of adoption adjustment [Member]	Cumulative other comprehensive income, parent [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Treasury stock [Member]	Treasury stock [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Unearned ESOP Shares [Member]	Unearned ESOP Shares [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Noncontrolling interests [Member]	Noncontrolling interests [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Beginning balance, shares at Dec. 31, 2018								9,377,216	9,377,216	4,581,253,608	4,581,253,608
Balance, beginning of period at Dec. 31, 2018		$ 197,066		$ 197,055	$ 196,166		$ 196,155	$ 23,214	$ 23,214	$ 9,136	$ 9,136	$ 60,685	$ 60,685	$ 158,163		$ 157,671	$ (6,336)		$ (5,855)	$ (47,194)	$ (47,194)	$ (1,502)	$ (1,502)	$ 900	$ 900
Balance, beginning of period (Accounting Standards Update 2016-02 and Accounting Standards Update 2017-08 [Member]) at Dec. 31, 2018	[1]		$ (11)			$ (11)									$ (492)			$ 481
Stockholders' Equity Period Increase (Decrease)
Net Income		5,967			5,860									5,860										107
Other comprehensive income (loss), net of tax		2,173			2,173												2,173							0
Total change in noncontrolling interests		(106)			0							0												(106)
Common stock issued		1,139			1,139							0		(329)						1,468
Common stock, shares issued										28,057,901
Common stock repurchased		(4,820)			(4,820)							0								(4,820)
Common stock repurchased, shares										(97,363,710)
Preferred stock redeemed		0			0			$ 0						0
Preferred stock redeemed, shares								0
Preferred stock issued to ESOP		0			0							0										0
Preferred stock issued to ESOP, shares
Preferred stock released by ESOP		0			0							0										0
Preferred stock converted to common shares		0			0			$ 0				0								0
Preferred stock converted to common shares, shares								(5)		31
Preferred stock issued		0			0							0
Common stock dividends		(2,054)			(2,054)							19		(2,073)
Preferred stock dividends		(353)			(353)									(353)
Stock incentive compensation expense		544			544							544
Net change in deferred compensation and related plans		(812)			(812)							(839)								27
Net change		1,678			1,677			$ 0		$ 0		(276)		3,105			2,173			(3,325)		0		1
Net change, shares								(5)		(69,305,778)
Balance, end of period at Mar. 31, 2019		198,733			197,832			$ 23,214		$ 9,136		60,409		160,776			(3,682)			(50,519)		(1,502)		901
Ending balance, shares at Mar. 31, 2019								9,377,211		4,511,947,830
Beginning balance, shares at Dec. 31, 2019								7,492,169	7,492,169	4,134,425,937	4,134,425,937
Balance, beginning of period at Dec. 31, 2019		187,984		$ 188,975	187,146		$ 188,137	$ 21,549	$ 21,549	$ 9,136	$ 9,136	61,049	$ 61,049	166,697		$ 167,688	(1,311)		$ (1,311)	(68,831)	$ (68,831)	(1,143)	$ (1,143)	838	$ 838
Balance, beginning of period (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019	[2]		$ 991			$ 991									$ 991
Stockholders' Equity Period Increase (Decrease)
Net Income		505			653									653										(148)
Other comprehensive income (loss), net of tax		(254)			(253)												(253)							(1)
Total change in noncontrolling interests		(77)			0							0												(77)
Common stock issued		1,677			1,677							(17)		(308)						2,002
Common stock, shares issued										37,351,887
Common stock repurchased		(3,407)			(3,407)							0								(3,407)
Common stock repurchased, shares										(75,367,520)
Preferred stock redeemed		(2,470)			(2,470)			$ (2,215)				17		(272)
Preferred stock redeemed, shares								(1,828,720)
Preferred stock issued to ESOP		0			0							0										0
Preferred stock issued to ESOP, shares
Preferred stock released by ESOP		0			0							0										0
Preferred stock converted to common shares		0			0			$ 0				0								0
Preferred stock converted to common shares, shares								0		0
Preferred stock issued		1,968			1,968			$ 2,013				(45)
Preferred stock, shares issued								80,500
Common stock dividends		(2,096)			(2,096)							18		(2,114)
Preferred stock dividends		(339)			(339)									(339)
Stock incentive compensation expense		181			181							181
Net change in deferred compensation and related plans		(1,333)			(1,333)							(1,354)								21
Net change		(5,645)			(5,419)			$ (202)		$ 0		(1,200)		(2,380)			(253)			(1,384)		0		(226)
Net change, shares								(1,748,220)		(38,015,633)
Balance, end of period at Mar. 31, 2020		$ 183,330			$ 182,718			$ 21,347		$ 9,136		$ 59,849		$ 165,308			$ (1,564)			$ (70,215)		$ (1,143)		$ 612
Ending balance, shares at Mar. 31, 2020								5,743,949		4,096,410,304
[1]	(2) 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.
[2]	(1) We adopted CECL effective January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income before noncontrolling interests	$ 505	$ 5,967
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	4,005	845
Changes in fair value of MSRs, MLHFS and LHFS carried at fair value	3,486	1,144
Depreciation, amortization and accretion	1,868	1,449
Other net (gains) losses	7,638	(1,418)
Stock-based compensation	582	902
Originations and purchases of mortgage loans held for sale	(37,216)	(25,098)
Proceeds from sales of and paydowns on mortgage loans held for sale	31,922	17,148
Net change in:
Debt and equity securities, held for trading	20,413	6,969
Loans held for sale	(731)	728
Deferred income taxes	(1,448)	312
Derivative assets and liabilities	(4,293)	(1,586)
Other assets	(10,391)	1,130
Other accrued expenses and liabilities	933	(541)
Net cash provided by operating activities	17,273	7,951
Net change in:
Federal funds sold and securities purchased under resale agreements	15,675	(18,414)
Available-for-sale debt securities:
Proceeds from sales	11,843	1,680
Prepayments and maturities	14,135	6,001
Purchases	(18,658)	(4,937)
Held-to-maturity debt securities:
Paydowns and maturities	3,769	2,123
Purchases	(19,141)	0
Equity securities, not held for trading:
Proceeds from sales and capital returns	1,115	1,180
Purchases	(3,338)	(1,352)
Loans:
Loans originated by banking subsidiaries, net of principal collected	(53,400)	669
Proceeds from sales (including participations) of loans held for investment	1,959	3,410
Purchases (including participations) of loans	(342)	(331)
Principal collected on nonbank entities’ loans	3,837	899
Loans originated by nonbank entities	(2,348)	(1,318)
Proceeds from sales of foreclosed assets and short sales	500	707
Other, net	91	657
Net cash used by investing activities	(44,303)	(9,026)
Net change in:
Deposits	53,903	(22,161)
Short-term borrowings	(12,223)	810
Long-term debt:
Proceeds from issuance	18,895	17,338
Repayment	(17,563)	(11,898)
Preferred stock:
Proceeds from issuance	1,968	0
Redeemed	(2,470)	0
Cash dividends paid	(280)	(294)
Common stock:
Proceeds from issuance	209	181
Stock tendered for payment of withholding taxes	(306)	(264)
Repurchased	(3,407)	(4,820)
Cash dividends paid	(2,032)	(1,997)
Net change in noncontrolling interests	(29)	(83)
Other, net	(76)	(56)
Net cash provided (used) by financing activities	36,589	(23,244)
Net change in cash, cash equivalents, and restricted cash	9,559	(24,319)
Cash, cash equivalents, and restricted cash at beginning of period	141,250	173,287
Cash, cash equivalents, and restricted cash at end of period	150,809	148,968
Supplemental cash flow disclosures:
Cash paid for interest	3,479	4,401
Cash paid for income taxes	$ 207	$ 126

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2020
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, 2019 ( 2019 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 Related 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 2019 Form 10-K. Accounting Standards Adopted in 2020 In first quarter 2020 , we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2019-04 – Codification Improvements to Topic 326, Financial Instruments – Credit Losses , Topic 815, Derivatives and Hedging , and Topic 825, Financial Instruments . This Update includes guidance on recoveries of financial assets, which is included in the discussion for ASU 2016-13 below. • ASU 2018-17 – Consolidation (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities • ASU 2018-15 – Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force) • ASU 2018-13 – Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement. • ASU 2017-04 – Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment • ASU 2016-13 – Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and related subsequent Updates ASU 2018-17 updates the guidance used by decision-makers of VIEs. Indirect interests held through related parties in common control arrangements will be considered on a proportional basis for determining whether fees paid to decision-makers and service providers are variable interests. This is consistent with how indirect interests held through related parties under common control are considered for determining whether a reporting entity must consolidate a VIE. The Update did not have a material impact on our consolidated financial statements. ASU 2018-15 clarifies the accounting for implementation costs related to a cloud computing arrangement that is a service contract and enhances disclosures around implementation costs for internal-use software and cloud computing arrangements. The guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). It also requires the expense related to the capitalized implementation costs be presented in the same line item in the statement of income as the fees associated with the hosting element of the arrangement and capitalized implementation costs be presented in the balance sheet in the same line item that a prepayment for the fees of the associated hosting arrangement are presented. The Update did not have a material impact on our consolidated financial statements. ASU 2018-13 clarifies, eliminates and adds certain fair value measurement disclosure requirements for assets and liabilities, which affects our disclosures in Note 16 (Fair Values of Assets and Liabilities). Although the ASU became effective on January 1, 2020, it permitted early adoption of individual requirements without causing others to be early adopted and, as such, we partially adopted the Update during third quarter 2018 and the remainder of the requirements in first quarter 2020. The Update did not have a material impact on our consolidated financial statements. ASU 2017-04 simplifies the goodwill impairment test by eliminating the requirement to assign the fair value of a reporting unit to all of the assets and liabilities of that unit (including any unrecognized intangible assets) as if the reporting unit had been acquired in a business combination. The Update requires that a goodwill impairment loss is recognized if the fair value of the reporting unit is less than the carrying amount, including goodwill. The goodwill impairment loss is limited to the amount of goodwill allocated to the reporting unit. The guidance did not change the qualitative assessment of goodwill. This guidance is applied on a prospective basis, and accordingly, the Update did not have a material impact on our consolidated financial statements. ASU 2016-13 changes the accounting for the measurement of credit losses on loans and debt securities. For loans and held-to-maturity (HTM) debt securities, the Update requires a current expected credit loss (CECL) measurement to estimate the allowance for credit losses (ACL) for the remaining contractual term, adjusted for prepayments, of the financial asset (including off-balance sheet credit exposures) using historical experience, current conditions, and reasonable and supportable forecasts. Also, the Update eliminates the existing guidance for purchased credit-impaired (PCI) loans, but requires an allowance for purchased financial assets with more than an insignificant deterioration of credit since origination. In addition, the Update modifies the other-than-temporary impairment (OTTI) model for available-for-sale (AFS) debt securities to require an allowance for credit impairment instead of a direct write-down, which allows for reversal of credit impairments in future periods based on improvements in credit. Upon adoption, we recognized an overall decrease in our ACL of approximately $1.3 billion (pre-tax) as a cumulative effect adjustment from a change in accounting policies, which increased our retained earnings and regulatory capital amounts and ratios. Loans previously classified as PCI were automatically transitioned to purchased credit-deteriorated (PCD) classification. We recognized an ACL for these new PCD loans and made a corresponding adjustment to the loan balance, with no impact to net income or transition adjustment to retained earnings. For more information on the impact of CECL by type of financial asset, see Table 1.1 below. Table 1.1: ASU 2016-13 Adoption Impact to Allowance for Credit Losses (1) Dec 31, 2019 ASU 2016-13 Adoption Impact Jan 1, 2020 (in billions) Balance Outstanding ACL Balance Coverage ACL Balance Coverage Total commercial (2) $ 515.7 6.2 1.2 % $ (2.9 ) 3.4 0.7 % Real estate 1-4 family mortgage (3) 323.4 0.9 0.3 — 0.9 0.3 Credit card (4) 41.0 2.3 5.5 0.7 2.9 7.1 Automobile (4) 47.9 0.5 1.0 0.3 0.7 1.5 Other revolving credit and installment (4) 34.3 0.6 1.6 0.6 1.2 3.5 Total consumer 446.5 4.2 0.9 1.5 5.7 1.3 Total loans 962.3 10.5 1.1 (1.3 ) 9.1 0.9 Available-for-sale and held-to-maturity debt securities and other assets (5) 420.0 0.1 NM — 0.1 NM Total $ 1,382.3 10.6 NM $ (1.3 ) 9.3 NM NM – Not meaningful (1) Amounts presented in this table may not equal the sum of its components due to rounding. (2) Decrease reflecting shorter contractual maturities given limitation to contractual terms. (3) Impact reflects an increase due to longer contractual terms, offset by expectation of recoveries in collateral value on mortgage loans previously written down significantly below current recovery value. (4) Increase due to longer contractual terms or indeterminate maturities. (5) Excludes other financial assets in the scope of CECL that do not have an allowance for credit losses based on the nature of the asset. The adoption of ASU 2016-13 did not result in a change to accounting policies, except as noted herein. Our accounting policy for the ACL was updated and is now inclusive of loans, debt securities and other financing receivables. Other than the ACL and the elimination of PCI loans, there were no changes to accounting policies for loans as described in the 2019 Form 10-K. For debt securities, other than the policies with respect to the ACL, all of the current accounting policies, including those that changed as a result of CECL adoption, are included below under Debt Securities. Debt Securities Our investments in debt securities that are not held for trading purposes are classified as either debt securities available-for-sale (AFS) or held-to-maturity (HTM). Investments in debt securities for which the Company does not have the positive intent and ability to hold to maturity are classified as AFS. AFS debt securities are measured at fair value, with unrealized gains and losses reported in cumulative other comprehensive income (OCI), net of the allowance for credit losses and applicable income taxes. Investments in debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM. HTM debt securities are measured at amortized cost, net of allowance for credit losses. INTEREST INCOME AND GAIN/LOSS RECOGNITION Unamortized premiums and discounts are recognized in interest income over the contractual life of the security using the effective interest method, except for purchased callable debt securities carried at a premium. For purchased callable debt securities carried at a premium, the premium is amortized into interest income to the earliest call date using the effective interest method. As principal repayments are received on securities (e.g., mortgage-backed securities (MBS)), a proportionate amount of the related premium or discount is recognized in income so that the effective interest rate on the remaining portion of the security continues unchanged. We recognize realized gains and losses on the sale of debt securities in net gains (losses) on debt securities within noninterest income using the specific identification method. IMPAIRMENT AND CREDIT LOSSES Unrealized losses of AFS debt securities are driven by a number of factors, including changes in interest rates and credit spreads which impact most types of debt securities with additional considerations for certain types of debt securities: • Debt securities of U.S. Treasury and federal agencies, including federal agency MBS, are not impacted by credit movements given the explicit or implicit guarantees provided by the U.S. government. • Debt securities of U.S. states and political subdivisions are most impacted by changes in the relationship between municipal and term funding credit curves rather than by changes in the credit quality of the underlying securities. • Structured securities, such as MBS and collateralized loan obligations (CLO), are also impacted by changes in projected collateral losses of assets underlying the security. For debt securities where fair value is less than amortized cost basis, we recognize impairment in earnings if we have the intent to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. Impairment is recognized equal to the entire difference between the amortized cost basis and the fair value of the security and is classified as net gains (losses) from debt securities within noninterest income. Following the recognition of impairment, the security’s new amortized cost basis is the previous basis less impairment. For debt securities where fair value is less than amortized cost basis where we did not recognize impairment in earnings, we set up an allowance for credit losses as of the balance sheet date. See “Allowance for Credit Losses” section in this Note. TRANSFERS BETWEEN CATEGORIES OF DEBT SECURITIES AFS debt securities transferred to the HTM classification are recorded at fair value and the unrealized gains or losses resulting from the transfer of these securities continue to be reported in cumulative OCI. The cumulative OCI balance is amortized into earnings over the same period as the unamortized premiums and discounts using the effective interest method. Any allowance for credit losses previously recorded under the AFS model on securities transferred to HTM is reversed and an allowance for credit losses is subsequently recorded under the HTM debt security model. NONACCRUAL AND PAST DUE, AND CHARGE-OFF POLICIES We generally place debt securities on nonaccrual status using factors similar to those described for loans. When we place a debt security on nonaccrual status, we reverse the accrued unpaid interest receivable against interest income and suspend the amortization of premiums and accretion of discounts. If the ultimate collectability of the principal is in doubt on a nonaccrual debt security, any cash collected is first applied to reduce the security’s amortized cost basis to zero, followed by recovery of amounts previously charged off, and subsequently to interest income. Generally, we return a debt security to accrual status when all delinquent interest and principal become current under the contractual terms of the security and collectability of remaining principal and interest is no longer doubtful. Our debt securities are considered past due when contractually required principal or interest payments have not been made on the due dates. Our charge-off policy for debt securities are similar to those described for loans. Subsequent to charge-off, the debt security will be designated as nonaccrual and follow the process described above for any cash received. Allowance for Credit Losses The ACL is management’s estimate of the current expected credit losses in the loan portfolio and unfunded credit commitments, at the balance sheet date, excluding loans and unfunded credit commitments carried at fair value or held for sale. Additionally, we maintain an ACL on AFS and HTM debt securities, other financing receivables measured at amortized cost, and other off-balance sheet credit exposures. While we attribute portions of the allowance to specific financial asset classes (loan and debt security portfolios), loan portfolio segments (commercial and consumer) or major security type, the entire ACL is available to absorb credit losses of the Company. Our ACL process involves procedures to appropriately consider the unique risk characteristics of our financial asset classes, portfolio segments, and major security types. For each loan portfolio segment and each major HTM debt security type, losses are estimated collectively for groups of loans or securities with similar risk characteristics. For loans and securities that do not share similar risk characteristics with other financial assets, the losses are estimated individually, which primarily includes our impaired large commercial loans and non-accruing HTM debt securities. For AFS debt securities, losses are estimated at the tax-lot level. Our ACL amounts are influenced by a variety of factors, including changes in loan and debt security volumes, portfolio credit quality, and general economic conditions. General economic conditions are forecasted using economic variables which will create volatility as those variables change over time. See Table 1.2 for key economic variables used for our loan portfolios. Table 1.2: Key Economic Variables Loan Portfolio Key economic variables Total commercial • Gross domestic product • Commercial real estate asset prices, where applicable • Unemployment rate • Corporate investment-grade bond spreads Real estate 1-4 family mortgage • Home price index • Unemployment rate Other consumer (including credit card, automobile, and other revolving credit and installment) • Unemployment rate Our approach for estimating expected life-time credit losses for loans and debt securities includes the following key components: • An initial loss forecast period of one year for all portfolio segments and classes of financing receivables and off- balance-sheet credit exposures. This period reflects management’s expectation of losses based on forward-looking economic scenarios over that time. • A historical loss forecast period covering the remaining contractual term, adjusted for expected prepayments and certain expected extensions, renewals, or modifications, by portfolio segment and class of financing receivables based on the changes in key historical economic variables during representative historical expansionary and recessionary periods. • A reversion period of up to 2 years connecting the initial loss forecast to the historical loss forecast based on economic conditions at the measurement date. • Utilization of discounted cash flow (DCF) methods to measure credit impairment for loans modified in a troubled debt restructuring, unless they are collateral dependent and measured at the fair value of the collateral. The DCF methods obtain estimated life-time credit losses using the initial and historical mean loss forecast periods described above. • For AFS debt securities and certain beneficial interests classified as HTM, we utilize the DCF methods to measure the ACL, which incorporate expected credit losses using the conceptual components described above. The ACL on AFS debt securities is subject to a limitation based on the fair value of the debt securities (fair value floor). The ACL for financial assets held at amortized cost and AFS debt securities will be reversible with immediate recognition of recovery in earnings if credit improves. The ACL for financial assets held at amortized cost is a valuation account that is deducted from, or added to, the amortized cost basis of the financial assets to present the net amount expected to be collected, which can include a negative allowance limited to the cumulative amounts previously charged off. For financial assets with an ACL estimated using DCF methods, changes in the ACL due to the passage of time are recorded in interest income. The ACL for AFS debt securities reflects the amount of unrealized loss related to expected credit losses, limited by the amount that fair value is less than the amortized cost basis, and cannot have an associated negative allowance. For certain financial assets, such as residential real estate loans guaranteed by the Government National Mortgage Association (GNMA), an agency of the federal government, U. S. Treasury and Agency mortgage backed debt securities, as well as certain sovereign debt securities, the Company has not recognized an ACL as our expectation of nonpayment of the amortized cost basis, based on historical losses, adjusted for current conditions and reasonable and supportable forecasts, is zero. A financial asset is collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. When a collateral-dependent financial asset is probable of foreclosure, we will measure the ACL based on the fair value of the collateral. If we intend to sell the underlying collateral, we will measure the ACL based on the collateral’s net realizable value (fair value of collateral, less estimated costs to sell). In most situations, based on our charge-off policies, we will immediately write-down the financial asset to the fair value of the collateral or net realizable value. For consumer loans, collateral-dependent financial assets may have collateral in the form of residential real estate, automobiles or other personal assets. For commercial loans, collateral-dependent financial assets may have collateral in the form of commercial real estate or other business assets. In general, we do not record an ACL for accrued interest receivables, which are included in other assets. Uncollectible accrued interest is reversed through interest income in a timely manner in line with our non-accrual and past due policies for loans and debt securities. For consumer credit card and certain consumer lines of credit, we include an ACL for accrued interest and fees since these loans are not placed on nonaccrual status and written off until the loan is 180 days past due. COMMERCIAL LOAN PORTFOLIO SEGMENT ACL METHODOLOGY Generally, commercial loans, which include net investments in lease financing, are assessed for estimated losses by grading each loan using various risk factors as identified through periodic reviews. Our estimation approach for the commercial portfolio reflects the estimated probability of default in accordance with the borrower’s financial strength and the severity of loss in the event of default, considering the quality of any underlying collateral. Probability of default and severity at the time of default are statistically derived through historical observations of default and losses after default within each credit risk rating. These estimates are adjusted as appropriate based on additional analysis of long-term average loss experience compared with previously forecasted losses, external loss data or other risks identified from current economic conditions and credit quality trends. The estimated probability of default and severity at the time of default are applied to loan equivalent exposures to estimate losses for unfunded credit commitments. CONSUMER LOAN PORTFOLIO SEGMENT ACL METHODOLOGY For consumer loans, we determine the allowance at the individual loan level. When developing historical loss experience, we pool loans, generally by product types with similar risk characteristics, such as residential real estate mortgages and credit cards. As appropriate and to achieve greater accuracy, we may further stratify selected portfolios by sub-product, origination channel, vintage, loss type, geographic location and other predictive characteristics. We use pooled loan data such as historic delinquency and default and loss severity in the development of our consumer loan models, in addition to home price trends, unemployment trends, and other economic variables that may influence the frequency and severity of losses in the consumer portfolio. AFS PORTFOLIO ACL METHODOLOGY We develop our ACL estimate for AFS debt securities by utilizing a security-level multi-scenario, probability-weighted discounted cash flow model based on a combination of past events, current conditions, as well as reasonable and supportable forecasts. The projected cash flows are discounted at the security’s effective interest rate, except for certain variable rate securities which are discounted using projections of future changes in interest rates, prepayable securities which are adjusted for estimated prepayments, and securities part of a fair value hedge which use hedge-adjusted assumptions. The ACL on an AFS debt security is limited to the difference between its amortized cost basis and fair value (fair value floor) and reversals of the allowance are permitted up to the amount previously recorded. HTM PORTFOLIO ACL METHODOLOGY For most HTM debt securities, the ACL is measured using an expected loss model, similar to the methodology used for loans. Unlike AFS debt securities, the ACL on an HTM debt security is not limited to the fair value floor. Certain beneficial interests categorized as HTM debt securities utilize a similar discounted cash flow model as described for AFS debt securities, without the limitation of the fair value floor. OTHER QUALITATIVE FACTORS The ACL includes amounts for qualitative factors which may not be adequately reflected in our loss models. These amounts represent management’s judgment of risks in the processes and assumptions used in establishing the ACL. Generally, these amounts are established at a granular level below our loan portfolio segments. We also consider economic environmental factors, modeling assumptions and performance, process risk, and other subjective factors, including industry trends and emerging risk assessments. OFF-BALANCE SHEET CREDIT EXPOSURES Our off-balance sheet credit exposures include unfunded loan commitments (generally in the form of revolving lines of credit), financial guarantees not accounted for as insurance contracts or derivatives, including standby letters of credit, and other similar instruments. For off-balance sheet credit exposures, we recognize an ACL associated with the unfunded amounts. We do not recognize an ACL for commitments that are unconditionally cancelable at our discretion. Additionally, we recognize an ACL for financial guarantees that create off-balance sheet credit exposure, such as loans sold with credit recourse and factoring guarantees. ACL for off-balance sheet credit exposures are reported as a liability in accrued expenses and other liabilities on our consolidated balance sheet. OTHER FINANCIAL ASSETS Other financial assets are evaluated for expected credit losses. These other financial assets include accounts receivable for fees, receivables from government-sponsored entities, such as Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC), and GNMA, and other accounts receivable from high-credit quality counterparties, such as central clearing counterparties. Many of these financial assets are generally not expected to have an ACL as there is a zero loss expectation (for example, government guarantee) or no historical credit losses. Some financial assets, such as loans to employees, maintain an ACL that is presented on a net basis with the related amortized cost amounts in other assets on our consolidated balance sheet. Given the nature of these financial assets, provision for credit losses is not recognized separately from the regular income or expense associated with these financial assets. Securities purchased under resale agreements are generally over-collateralized by securities or cash and are generally short-term in nature. We have elected the practical expedient for these financial assets given collateral maintenance provisions. These provisions require that we monitor the collateral value and customers are required to replenish collateral, if needed. Accordingly, we generally do not maintain an ACL for these financial assets. PURCHASED CREDIT DETERIORATED FINANCIAL ASSETS Financial assets acquired that are of poor credit quality and with more than an insignificant evidence of credit deterioration since their origination or issuance are PCD assets. PCD assets are recorded at their purchase price plus an ACL estimated at the time of acquisition. Under this approach, there is no provision for credit losses recognized at acquisition; rather, there is a gross-up of the purchase price of the financial asset for the estimate of expected credit losses and a corresponding ACL recorded. Changes in estimates of expected credit losses after acquisition are recognized as provision for credit losses (or reversal of provision for credit losses) in subsequent periods. In general, interest income recognition for PCD financial assets is consistent with interest income recognition for the similar non-PCD financial asset. Troubled Debt Restructuring Relief On March 25, 2020, the U.S. Senate approved the Coronavirus, Aid, Relief, and Economic Security Act (the CARES Act) providing optional, temporary relief from accounting for certain loan modifications as troubled debt restructurings (TDRs). Under the CARES Act, TDR relief is available to banks for loan modifications related to the adverse effects of Coronavirus Disease 2019 (COVID-19) (COVID-related modifications) granted to borrowers that are current as of December 31, 2019. TDR relief applies to COVID-related modifications made from March 1, 2020, until the earlier of December 31, 2020, or 60 days following the termination of the national emergency declared by the President of the United States. In first quarter 2020, we elected to apply the TDR relief provided by the CARES Act. On April 7, 2020, federal banking regulators issued the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised) (the Interagency Statement). The guidance in the Interagency Statement provides additional TDR relief as it clarifies that it is not necessary to consider the impact of the COVID-19 pandemic on the financial condition of a borrower in connection with a short-term (e.g., six months) COVID-related modification provided the borrower is current at the date the modification program is implemented. For COVID-related modifications in the form of payment deferrals, delinquency status will not advance and loans that were accruing at the time the relief is provided will generally not be placed on nonaccrual status during the deferral period. COVID-related modifications that do not meet the provisions of the CARES Act or the Interagency Statement will be assessed for TDR classification. Share Repurchases During the first quarter of 2020 and 2019, we repurchased shares of our common stock under Rule 10b5-1 repurchase plans. On March 15, 2020, we, along with the other members of the Financial Services Forum, suspended our share repurchase activities for the remainder of the first quarter and for second quarter 2020. For more information about share repurchases, see Note 1 (Summary of Significant Accounting Policies) in our 2019 Form 10-K. Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.3 . Table 1.3: Supplemental Cash Flow Information Quarter ended March 31, (in millions) 2020 2019 Trading debt securities retained from securitization of mortgage loans held for sale (MLHFS) $ 7,538 8,875 Transfers from loans to MLHFS 858 1,292 Transfers from available-for-sale debt securities to held-to-maturity debt securities — 2,407 Operating lease ROU assets acquired with operating lease liabilities (1) 197 5,127 (1) Includes amounts attributable to new leases and changes from modified leases. First quarter 2019 also includes $4.9 billion from adoption of ASU 2016-02 – Leases (Topic 842). Subsequent Events We have evaluated the effects of events that have occurred subsequent to March 31, 2020 , and there have been no material events that would require recognition in our first quarter 2020
Subsequent Events	Subsequent Events We have evaluated the effects of events that have occurred subsequent to March 31, 2020 , and there have been no material events that would require recognition in our first quarter 2020

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2020
Business Combinations [Abstract]
Business Combinations	Note 2: Business Combinations There were no acquisitions during first quarter 2020 . As of March 31, 2020 , we had no pending acquisitions.

Cash, Loan and Dividend Restric

Cash, Loan and Dividend Restrictions	3 Months Ended
	Mar. 31, 2020
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. Federal Reserve Board (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) Mar 31, Dec 31, Average required reserve balance for FRB (1) $ 11,932 11,374 Reserve balance for non-U.S. central banks 1,133 460 Segregated for benefit of brokerage customers under federal and other brokerage regulations 970 733 Related to consolidated variable interest entities (VIEs) that can only be used to settle liabilities of VIEs 19 300 (1) Represents average for first quarter 2020 and for the year ended December 31, 2019 . 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 $1.9 billion at March 31, 2020 , without obtaining prior regulatory approval. We have elected to retain higher capital at our national and state-chartered subsidiary banks in order to meet internal capital policy minimums and regulatory requirements. 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 March 31, 2020 , our nonbank subsidiaries could have declared additional dividends of $24.8 billion at March 31, 2020 , without obtaining prior regulatory approval. For additional information see Note 3 ( Cash, Loan and Dividend Restrictions) in our 2019 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 April 28, 2020 , payable on June 1, 2020 .

Trading Activities

Trading Activities	3 Months Ended
	Mar. 31, 2020
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 Mar 31, Dec 31, (in millions) 2020 2019 Trading assets: Debt securities $ 80,425 79,733 Equity securities 13,573 27,440 Loans held for sale 1,673 972 Gross trading derivative assets 72,527 34,825 Netting (1) (49,821 ) (21,463 ) Total trading derivative assets 22,706 13,362 Total trading assets 118,377 121,507 Trading liabilities: Short sale 17,603 17,430 Gross trading derivative liabilities 67,891 33,861 Netting (1) (53,598 ) (26,074 ) Total trading derivative liabilities 14,293 7,787 Total trading liabilities $ 31,896 25,217 (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 March 31, (in millions) 2020 2019 Interest income: Debt securities $ 766 793 Equity securities 137 115 Loans held for sale 12 23 Total interest income 915 931 Less: Interest expense 141 136 Net interest income 774 795 Net gains (losses) from trading activities (1): Debt securities 2,355 688 Equity securities (4,401 ) 2,067 Loans held for sale (12 ) 14 Derivatives (2) 2,122 (2,412 ) Total net gains from trading activities 64 357 Total trading-related net interest and noninterest income $ 838 1,152 (1) Represents realized gains (losses) from our trading activities 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	3 Months Ended
	Mar. 31, 2020
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, net of the allowance for credit losses, 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, net of allowance for credit losses. The net unrealized gains (losses) for available-for-sale debt securities are reported as a component of cumulative OCI, net of the allowance for credit losses and applicable income taxes. Information on debt securities held for trading is included in Note 4 (Trading Activities). Outstanding balances exclude accrued interest receivable on available-for-sale and held-to-maturity debt securities which are included in other assets. During the quarter ended March 31, 2020, we reversed accrued interest receivable on our available-for-sale and held-to-maturity debt securities by reversing interest income of $6 million . See Note 9 (Other Assets) for additional information on accrued interest receivable. Table 5.1: Available-for-Sale and Held-to-Maturity Debt Securities Outstanding (in millions) Amortized cost, net (1) Gross unrealized gains Gross unrealized losses Fair value March 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 10,952 88 (4 ) 11,036 Securities of U.S. states and political subdivisions (2) 38,686 206 (748 ) 38,144 Mortgage-backed securities: Federal agencies 154,390 5,839 (15 ) 160,214 Residential 820 — (44 ) 776 Commercial 3,897 10 (253 ) 3,654 Total mortgage-backed securities 159,107 5,849 (312 ) 164,644 Corporate debt securities 6,092 38 (275 ) 5,855 Collateralized loan and other debt obligations 26,873 63 (1,768 ) 25,168 Other (3) 6,477 19 (114 ) 6,382 Total available-for-sale debt securities 248,187 6,263 (3,221 ) 251,229 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 48,569 2,146 (24 ) 50,691 Securities of U.S. states and political subdivisions 14,304 344 (37 ) 14,611 Federal agency and other mortgage-backed securities (4) 107,013 5,268 (43 ) 112,238 Other debt securities 23 — (1 ) 22 Total held-to-maturity debt securities 169,909 7,758 (105 ) 177,562 Total (5) $ 418,096 14,021 (3,326 ) 428,791 December 31, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 14,948 13 (1 ) 14,960 Securities of U.S. states and political subdivisions (2) 39,381 992 (36 ) 40,337 Mortgage-backed securities: Federal agencies 160,318 2,299 (164 ) 162,453 Residential 814 14 (1 ) 827 Commercial 3,899 41 (6 ) 3,934 Total mortgage-backed securities 165,031 2,354 (171 ) 167,214 Corporate debt securities 6,343 252 (32 ) 6,563 Collateralized loan and other debt obligations 29,693 125 (123 ) 29,695 Other (3) 4,664 50 (24 ) 4,690 Total available-for-sale debt securities 260,060 3,786 (387 ) 263,459 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 45,541 617 (19 ) 46,139 Securities of U.S. states and political subdivisions 13,486 286 (13 ) 13,759 Federal agency and other mortgage-backed securities (4) 94,869 2,093 (37 ) 96,925 Other debt securities 37 — — 37 Total held-to-maturity debt securities 153,933 2,996 (69 ) 156,860 Total (5) $ 413,993 6,782 (456 ) 420,319 (1) Represents amortized cost of the securities, net of the allowance for credit losses of $161 million related to available-for-sale debt securities and $11 million related to held-to-maturity debt securities at March 31, 2020 . Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses related to available-for-sale and held-to-maturity debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Includes investments in tax-exempt preferred debt securities issued by investment funds or trusts that predominantly invest in tax-exempt municipal securities. The amortized cost net of allowance for credit losses and fair value of these types of securities was $5.8 billion at both March 31, 2020 , and December 31, 2019 . (3) Primarily includes asset-backed securities collateralized by student loans. (4) Predominantly consists of federal agency mortgage-backed securities at both March 31, 2020 and December 31, 2019 . (5) We held available-for-sale and held-to-maturity debt securities from Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC) that each exceeded 10% of stockholders’ equity, with an amortized cost of $102.4 billion and $88.4 billion and a fair value of $107.0 billion and $92.2 billion at March 31, 2020 and an amortized cost of $98.5 billion and $84.1 billion and a fair value of $100.3 billion and $85.5 billion at December 31, 2019 , respectively. Table 5.2 details the breakout of purchases of and transfers to held-to-maturity debt securities by major category of security. Table 5.2: Held-to-Maturity Debt Securities Purchases and Transfers Quarter ended March 31, (in millions) 2020 2019 Purchases of held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies $ 3,016 — Securities of U.S. states and political subdivisions 866 — Federal agency and other mortgage-backed securities 15,925 16 Total purchases of held-to-maturity debt securities 19,807 16 Transfers from available-for-sale debt securities to held-to-maturity debt securities: Federal agency and other mortgage-backed securities — 2,407 Total transfers from available-for-sale debt securities to held-to-maturity debt securities $ — 2,407 Table 5.3 shows the composition of interest income, provision for credit losses, and gross realized gains and losses from sales and impairment write-downs included in earnings related to available-for-sale and held-to-maturity debt securities (pre-tax) . Table 5.3: Income Statement Impacts for Available-for-Sale and Held-to-Maturity Debt Securities Quarter ended March 31, (in millions) 2020 2019 Interest income: Available-for-sale $ 1,726 2,201 Held-to-maturity 980 947 Total interest income (1) 2,706 3,148 Provision for credit losses (2): Available-for-sale 168 — Held-to-maturity 4 — Total provision for credit losses 172 — Realized gains and losses (3): Gross realized gains 256 173 Gross realized losses (4 ) (3 ) Impairment write-downs included in earnings: Credit-related (4) — (16 ) Intent-to-sell (15 ) (29 ) Total impairment write-downs included in earnings (15 ) (45 ) Net realized gains $ 237 125 (1) Total interest income from debt securities excludes interest income from trading debt securities, which is disclosed in Note 4 (Trading Activities). (2) Prior to our adoption of CECL on January 1, 2020, the provision for credit losses from debt securities was not applicable and is therefore presented as $0 for the prior period. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Realized gains and losses relate to available-for-sale debt securities. There were no realized gains or losses from held-to-maturity debt securities in all periods presented. (4) For the quarter ended March 31, 2020 , credit-related impairment recognized in earnings is classified as provision for credit losses due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). Credit Quality We monitor credit quality of debt securities by evaluating various attributes and utilize such information in our evaluation of the appropriateness of the allowance for credit losses. The credit quality indicators that we most closely monitor include credit ratings and delinquency status and are based on information as of our financial statement date. CREDIT RATINGS Credit ratings express opinions about the credit quality of a debt security. We determine the credit rating of a security according to the lowest credit rating made available by national recognized statistical rating organizations (NRSRO). Debt securities rated investment grade, that is those with ratings similar to BBB-/Baa3 or above, as defined by NRSRO, 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. For debt securities not rated by the NRSRO, we determine an internal credit grade of the debt securities (used for credit risk management purposes) equivalent to the credit ratings assigned by major credit agencies. The fair value of available-for-sale debt securities categorized as investment grade based on internal credit grades was $1.2 billion at March 31, 2020 , and $2.2 billion at December 31, 2019 . Held-to-maturity debt securities categorized as investment grade based on internal credit grades are not significant. If an internal credit grade was not assigned, we categorized the debt security as non-investment grade. Table 5.4 shows the percentage of fair value of available-for-sale debt securities and amortized cost of held-to-maturity debt securities determined by those rated investment grade, inclusive of those based on internal credit grades. Table 5.4: Investment Grade Debt Securities Available-for-Sale Held-to-Maturity ($ in millions) Fair value % investment grade Amortized cost % investment grade March 31, 2020 Total portfolio $ 251,229 99 % 169,920 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (1) $ 171,250 100 % 154,734 100 % Securities of U.S. states and political subdivisions 38,144 99 14,313 100 Collateralized loan obligations 24,582 100 N/A N/A All other debt securities (2) 17,253 82 873 7 December 31, 2019 Total portfolio $ 263,459 99 % 153,933 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (1) $ 177,413 100 % 139,619 100 % Securities of U.S. states and political subdivisions 40,337 99 13,486 100 Collateralized loan obligations 29,055 100 N/A N/A All other debt securities (2) 16,654 82 828 4 (1) Includes federal agency mortgage-backed securities. (2) Includes non-agency mortgage-backed, corporate, and all other debt securities. DELINQUENCY STATUS AND NONACCRUAL DEBT SECURITIES Debt security issuers that are delinquent in payment of amounts due under contractual debt agreements have a higher probability of recognition of credit losses. As such, as part of our monitoring of the credit quality of the debt security portfolio, we consider whether debt securities we own are past due in payment of principal or interest payments and whether any securities have been placed into nonaccrual status. We had no debt securities that were past due and still accruing at March 31, 2020 or December 31, 2019 . The fair value of available-for-sale debt securities in nonaccrual status was $327 million and $110 million as of March 31, 2020 and December 31, 2019 , respectively. There were no held-to-maturity debt securities in nonaccrual status as of March 31, 2020 or December 31, 2019 . Purchased debt securities with credit deterioration (PCD) are not considered to be in nonaccrual status, as payments from issuers of these securities remain current. Table 5.5 presents detail of available-for-sale debt securities purchased with credit deterioration during the period. There were no held-to-maturity debt securities purchased with credit deterioration during the quarter ended March 31, 2020 . The amounts presented are as of the date of the PCD assets were purchased. Table 5.5: Debt Securities Purchased with Credit Deterioration (in millions) Quarter ended March 31, 2020 Available-for-sale debt securities purchased with credit deterioration (PCD): Par value $ 164 Allowance for credit losses at acquisition (11 ) Discount (or premiums) attributable to other factors 3 Purchase price of available-for-sale debt securities purchased with credit deterioration $ 156 Unrealized Losses of Available-for-Sale Debt Securities Table 5.6 shows the gross unrealized losses and fair value of available-for-sale 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 recorded credit impairment 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 (1) for the current period presented, amortized cost basis net of allowance for credit losses, or the (2) for the prior period presented, amortized cost basis. Table 5.6: Gross Unrealized Losses and Fair Value – Available-for-Sale Debt Securities 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 March 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (4 ) 615 — — (4 ) 615 Securities of U.S. states and political subdivisions (678 ) 22,740 (70 ) 1,490 (748 ) 24,230 Mortgage-backed securities: Federal agencies (3 ) 594 (12 ) 737 (15 ) 1,331 Residential (44 ) 591 — — (44 ) 591 Commercial (228 ) 3,275 (25 ) 243 (253 ) 3,518 Total mortgage-backed securities (275 ) 4,460 (37 ) 980 (312 ) 5,440 Corporate debt securities (263 ) 3,337 (12 ) 129 (275 ) 3,466 Collateralized loan and other debt obligations (1,226 ) 18,303 (542 ) 6,442 (1,768 ) 24,745 Other (91 ) 4,085 (23 ) 618 (114 ) 4,703 Total available-for-sale debt securities $ (2,537 ) 53,540 (684 ) 9,659 (3,221 ) 63,199 December 31, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ — — (1 ) 2,423 (1 ) 2,423 Securities of U.S. states and political subdivisions (10 ) 2,776 (26 ) 2,418 (36 ) 5,194 Mortgage-backed securities: Federal agencies (50 ) 16,807 (114 ) 10,641 (164 ) 27,448 Residential (1 ) 149 — — (1 ) 149 Commercial (3 ) 998 (3 ) 244 (6 ) 1,242 Total mortgage-backed securities (54 ) 17,954 (117 ) 10,885 (171 ) 28,839 Corporate debt securities (9 ) 303 (23 ) 216 (32 ) 519 Collateralized loan and other debt obligations (13 ) 5,070 (110 ) 16,789 (123 ) 21,859 Other (12 ) 1,587 (12 ) 492 (24 ) 2,079 Total available-for-sale debt securities $ (98 ) 27,690 (289 ) 33,223 (387 ) 60,913 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. In prior periods, credit impairment was recorded as a write-down to the amortized cost basis of the security. In the current period, credit impairment is recorded as an allowance for credit losses. For descriptions of the factors we consider when analyzing debt securities for impairment as well as methodology and significant inputs used to measure credit losses, see Note 1 (Summary of Significant Accounting Policies). Allowance for Credit Losses for Debt Securities Table 5.7 presents the allowance for credit losses on available-for-sale and held-to-maturity debt securities. Table 5.7: Allowance for Credit Losses for Debt Securities Quarter ended March 31, 2020 (in millions) Available-for-Sale Held-to-Maturity Balance, beginning of period (1) $ — — Cumulative effect from change in accounting policies (2) 24 7 Balance, beginning of period, adjusted 24 7 Provision for credit losses 168 4 Securities purchased with credit deterioration 11 — Reduction due to intent to sell (11 ) — Charge-offs (32 ) — Interest income (3) 1 — Balance, end of period (4) $ 161 11 (1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses related to available-for-sale and held-to-maturity debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Represents the impact of adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Certain debt securities with an allowance for credit losses calculated by discounting expected cash flows using the securities’ effective interest rate over its remaining life, recognize changes in the allowance for credit losses attributable to the passage of time as interest income. (4) Substantially all of allowance for credit losses for debt securities relates to corporate debt securities as of March 31, 2020 . Contractual Maturities Table 5.8 shows the remaining contractual maturities, amortized cost net of allowance for credit losses, fair value and weighted-average effective yields of available-for-sale debt securities. The remaining contractual principal maturities for MBS do not consider prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature. Table 5.8: Contractual Maturities – Available-for-Sale Debt Securities By remaining contractual maturity ($ in millions) Total Within one year After one year through five years After five years through ten years After ten years March 31, 2020 Available-for-sale debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 10,952 8,023 28 45 2,856 Fair value 11,036 8,029 29 49 2,929 Weighted average yield 2.10 % 2.32 1.97 1.84 1.49 Securities of U.S. states and political subdivisions Amortized cost, net 38,686 3,940 4,196 4,034 26,516 Fair value 38,144 3,963 4,244 4,039 25,898 Weighted average yield 3.15 4.58 3.20 2.78 2.98 Mortgage-backed securities: Federal agencies Amortized cost, net 154,390 2 123 1,944 152,321 Fair value 160,214 2 128 2,005 158,079 Weighted average yield 3.19 1.93 3.06 2.44 3.20 Residential Amortized cost, net 820 — — — 820 Fair value 776 — — — 776 Weighted average yield 3.19 — — — 3.19 Commercial Amortized cost, net 3,897 — 32 194 3,671 Fair value 3,654 — 31 187 3,436 Weighted average yield 2.62 — 2.49 2.71 2.62 Total mortgage-backed securities Amortized cost, net 159,107 2 155 2,138 156,812 Fair value 164,644 2 159 2,192 162,291 Weighted average yield 3.18 1.93 2.94 2.46 3.19 Corporate debt securities Amortized cost, net 6,092 373 2,048 2,847 824 Fair value 5,855 355 1,973 2,755 772 Weighted average yield 4.97 4.12 5.18 5.03 4.67 Collateralized loan and other debt obligations Amortized cost, net 26,873 — — 12,014 14,859 Fair value 25,168 — — 11,362 13,806 Weighted average yield 3.21 — — 3.29 3.15 Other Amortized cost, net 6,477 2,021 704 1,296 2,456 Fair value 6,382 2,021 685 1,287 2,389 Weighted average yield 1.51 (0.22 ) 2.95 1.41 2.57 Total available-for-sale debt securities Amortized cost, net $ 248,187 14,359 7,131 22,374 204,323 Fair value 251,229 14,370 7,090 21,684 208,085 Weighted average yield 3.13 % 2.63 3.75 3.24 3.14 (1) Weighted-average yields displayed by maturity bucket are weighted based on amortized cost without effect for any related hedging derivatives and are shown pre-tax. Table 5.9 shows the remaining contractual maturities, amortized cost net of allowance for credit losses, fair value, and weighted-average effective yields of held-to-maturity debt securities. Table 5.9: Contractual Maturities – Held-to-Maturity Debt Securities By remaining contractual maturity ($ in millions) Total Within one year After one year through five years After five years through ten years After ten years March 31, 2020 Held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 48,569 8,336 36,454 — 3,779 Fair value 50,691 8,494 38,170 — 4,027 Weighted average yield 2.14 % 2.24 2.18 — 1.56 Securities of U.S. states and political subdivisions Amortized cost, net 14,304 11 713 1,724 11,856 Fair value 14,611 11 731 1,794 12,075 Weighted average yield 2.71 1.95 2.22 2.86 2.72 Federal agency and other mortgage-backed securities Amortized cost, net 107,013 — 15 104 106,894 Fair value 112,238 — 13 111 112,114 Weighted average yield 2.96 — 2.99 1.37 2.96 Other debt securities Amortized cost, net 23 — — 23 — Fair value 22 — — 22 — Weighted average yield 3.01 — — 3.01 — Total held-to-maturity debt securities Amortized cost, net $ 169,909 8,347 37,182 1,851 122,529 Fair value 177,562 8,505 38,914 1,927 128,216 Weighted average yield 2.70 % 2.24 2.18 2.78 2.89 (1) Weighted-average yields displayed by maturity bucket are weighted based on amortized cost and are shown pre-tax.

Loans and Related Allowance for

Loans and Related Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Related Allowance for Credit Losses	Note 6: Loans and Related 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 March 31, 2020 , and December 31, 2019 . Outstanding balances exclude accrued interest receivable on loans which are included in other assets. During the quarter ended March 31, 2020 , we reversed accrued interest receivable by reversing interest income of $9 million for our commercial portfolio segment and $63 million for our consumer portfolio segment. See Note 9 (Other Assets) for additional information on accrued interest receivable. Table 6.1: Loans Outstanding (in millions) Mar 31, Dec 31, Commercial: Commercial and industrial $ 405,020 354,125 Real estate mortgage 122,767 121,824 Real estate construction 20,812 19,939 Lease financing 19,136 19,831 Total commercial 567,735 515,719 Consumer: Real estate 1-4 family first mortgage 292,920 293,847 Real estate 1-4 family junior lien mortgage 28,527 29,509 Credit card 38,582 41,013 Automobile 48,568 47,873 Other revolving credit and installment 33,511 34,304 Total consumer 442,108 446,546 Total loans $ 1,009,843 962,265 Our non-U.S. loans are reported by respective class of financing receivable in the table above. Substantially all of our non-U.S. loan portfolio is commercial loans. Table 6.2 presents total non-U.S. commercial loans outstanding by class of financing receivable. Table 6.2: Non-U.S. Commercial Loans Outstanding (in millions) Mar 31, Dec 31, Non-U.S. Commercial Loans Commercial and industrial $ 78,753 70,494 Real estate mortgage 6,309 7,004 Real estate construction 1,478 1,434 Lease financing 1,120 1,220 Total non-U.S. commercial loans $ 87,660 80,152 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. The table excludes 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 ACL. In first quarter 2020, we sold $709 million of 1-4 family first mortgage loans for a gain of $463 million , which is included in other noninterest income on our consolidated income statement. These whole loans were reclassified to MLHFS in 2019. Table 6.3: Loan Purchases, Sales, and Transfers 2020 2019 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Purchases $ 341 1 342 329 3 332 Sales (813 ) (26 ) (839 ) (421 ) (179 ) (600 ) Transfers (to) from MLHFS/LHFS 77 2 79 (3 ) — (3 ) 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 $72.7 billion at March 31, 2020 . We issue commercial letters of credit to assist customers in purchasing goods or services, typically for international trade. At March 31, 2020 , and December 31, 2019 , we had $981.3 million and $862 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) Mar 31, Dec 31, Commercial: Commercial and industrial $ 314,135 346,991 Real estate mortgage 9,360 8,206 Real estate construction 17,236 17,729 Total commercial 340,731 372,926 Consumer: Real estate 1-4 family first mortgage 42,691 34,391 Real estate 1-4 family junior lien mortgage 36,301 36,916 Credit card 118,339 114,933 Other revolving credit and installment 25,187 25,898 Total consumer 222,518 212,138 Total unfunded credit commitments $ 563,249 585,064 Allowance for Credit Losses for Loans Table 6.5 presents the allowance for credit losses for loans, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. On January 1, 2020, we adopted CECL. Additional information on our adoption of CECL is included in Note 1 (Summary of Significant Accounting Policies). In first quarter 2020, after the adoption of CECL, we added a net $2.9 billion to our ACL for loans predominantly driven by the expected impacts from the COVID-19 pandemic. These expected impacts were most significantly affected by anticipated changes to economic variables, as well as higher expected losses from certain industries in our commercial portfolio segment that we expect to be directly and most adversely affected by the COVID-19 pandemic. In addition, the increase included expected impacts on oil and gas loans due to lower oil prices and deteriorating credit trends. Table 6.5: Allowance for Credit Losses for Loans Quarter ended March 31, (in millions) 2020 2019 Balance, beginning of period 10,456 10,707 Cumulative effect from change in accounting policies (1) (1,337 ) — Allowance for purchased credit-deteriorated (PCD) loans (2) 8 — Balance, beginning of period, adjusted 9,127 10,707 Provision for credit losses 3,833 845 Interest income on certain loans (3) (38 ) (39 ) Loan charge-offs: Commercial: Commercial and industrial (377 ) (176 ) Real estate mortgage (3 ) (12 ) Real estate construction — (1 ) Lease financing (13 ) (11 ) Total commercial (393 ) (200 ) Consumer: Real estate 1-4 family first mortgage (23 ) (43 ) Real estate 1-4 family junior lien mortgage (30 ) (34 ) Credit card (471 ) (437 ) Automobile (156 ) (187 ) Other revolving credit and installment (165 ) (162 ) Total consumer (845 ) (863 ) Total loan charge-offs (1,238 ) (1,063 ) Loan recoveries: Commercial: Commercial and industrial 44 43 Real estate mortgage 5 6 Real estate construction 16 3 Lease financing 4 3 Total commercial 69 55 Consumer: Real estate 1-4 family first mortgage 26 55 Real estate 1-4 family junior lien mortgage 35 43 Credit card 94 85 Automobile 74 96 Other revolving credit and installment 31 34 Total consumer 260 313 Total loan recoveries 329 368 Net loan charge-offs (909 ) (695 ) Other 9 3 Balance, end of period 12,022 10,821 Components: Allowance for loan losses 11,263 9,900 Allowance for unfunded credit commitments 759 921 Allowance for credit losses for loans 12,022 10,821 Net loan charge-offs (annualized) as a percentage of average total loans 0.38 0.30 Allowance for loan losses as a percentage of total loans 1.12 1.04 Allowance for credit losses for loans as a percentage of total loans 1.19 1.14 (1) Represents the overall decrease in our allowance for credit losses for loans as a result of our adoption of CECL on January 1, 2020. (2) Represents the allowance estimated for PCI loans that automatically became PCD loans with the adoption of CECL. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Loans with an allowance measured 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 for loans by our commercial and consumer portfolio segments. Table 6.6: Allowance for Credit Losses for Loans Activity by Portfolio Segment 2020 2019 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Balance, beginning of period $ 6,245 4,211 10,456 6,417 4,290 10,707 Cumulative effect from change in accounting policies (1) (2,861 ) 1,524 (1,337 ) — — — Allowance for purchased credit-deteriorated (PCD) loans (2) — 8 8 — — — Balance, beginning of period, adjusted 3,384 5,743 9,127 6,417 4,290 10,707 Provision for credit losses 2,240 1,593 3,833 164 681 845 Interest income on certain loans (3) (14 ) (24 ) (38 ) (11 ) (28 ) (39 ) Loan charge-offs (393 ) (845 ) (1,238 ) (200 ) (863 ) (1,063 ) Loan recoveries 69 260 329 55 313 368 Net loan charge-offs (324 ) (585 ) (909 ) (145 ) (550 ) (695 ) Other (7 ) 16 9 3 — 3 Balance, end of period $ 5,279 $ 6,743 $ 12,022 $ 6,428 $ 4,393 $ 10,821 (1) Represents the overall decrease in our allowance for credit losses for loans as a result of our adoption of CECL on January 1, 2020. (2) Represents the allowance estimated for PCI loans that automatically became PCD loans with the adoption of CECL. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Loans with an allowance measured 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 6.7 disaggregates our allowance for credit losses for loans and recorded investment in loans by impairment methodology. This is no longer relevant after December 31, 2019, given our adoption of CECL on January 1, 2020, which has a single impairment methodology. Table 6.7: Allowance for Credit Losses for Loans by Impairment Methodology Allowance for credit losses for loans Recorded investment in loans (in millions) Commercial Consumer Total Commercial Consumer Total December 31, 2019 Collectively evaluated (1) $ 5,778 3,364 9,142 512,586 436,081 948,667 Individually evaluated (2) 467 847 1,314 3,133 9,897 13,030 PCI (3) — — — — 568 568 Total $ 6,245 4,211 10,456 515,719 446,546 962,265 (1) Represents non-impaired loans evaluated collectively for impairment. (2) Represents impaired loans evaluated individually for impairment. (3) Represents the allowance for loan losses and related loan carrying value 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 December 31, 2019 . Amounts disclosed in the credit quality tables that follow are not comparative between reported periods due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). COMMERCIAL CREDIT QUALITY INDICATORS 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, which is our primary credit quality indicator. Our ratings are aligned to federal banking regulators’ definitions of pass and criticized categories with the criticized category including special mention, substandard, doubtful, and loss categories. Table 6.8 provides a breakdown of outstanding commercial loans by risk category. In connection with our adoption of CECL, credit quality information is provided with the year of origination for term loans. Revolving loans may convert to term loans as a result of a contractual provision in the original loan agreement or if modified in a TDR. Table 6.8: Commercial Loans Categories by Risk Categories and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans Total (in millions) 2020 2019 2018 2017 2016 Prior March 31, 2020 Commercial and industrial Pass $ 32,531 53,904 23,788 11,603 7,815 5,061 250,893 209 385,804 Criticized 885 1,053 948 721 433 458 14,718 — 19,216 Total commercial and industrial 33,416 54,957 24,736 12,324 8,248 5,519 265,611 209 405,020 Real estate mortgage Pass 7,336 31,320 23,268 14,577 15,376 21,087 5,563 128 118,655 Criticized 60 452 515 741 546 1,525 273 — 4,112 Total real estate mortgage 7,396 31,772 23,783 15,318 15,922 22,612 5,836 128 122,767 Real estate construction Pass 1,293 7,226 5,528 3,024 1,290 472 1,750 7 20,590 Criticized 2 98 93 6 8 14 1 — 222 Total real estate construction 1,295 7,324 5,621 3,030 1,298 486 1,751 7 20,812 Lease financing Pass 1,439 5,566 3,769 2,447 1,844 2,739 — — 17,804 Criticized 83 422 365 196 139 127 — — 1,332 Total lease financing 1,522 5,988 4,134 2,643 1,983 2,866 — — 19,136 Total commercial loans $ 43,629 100,041 58,274 33,315 27,451 31,483 273,198 344 567,735 Commercial Real Real Lease Total December 31, 2019 By risk category: Pass $ 338,740 118,054 19,752 18,655 495,201 Criticized 15,385 3,770 187 1,176 20,518 Total commercial loans $ 354,125 121,824 19,939 19,831 515,719 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). Table 6.9 provides past due information for commercial loans, which we monitor as part of our credit risk management practices; however, delinquency is not a primary credit quality indicator for commercial loans. Table 6.9: Commercial Loan Categories by Delinquency Status (in millions) Commercial and industrial Real estate mortgage Real estate construction Lease financing Total March 31, 2020 By delinquency status: Current-29 days past due (DPD) and still accruing $ 402,706 121,621 20,696 18,793 563,816 30-89 DPD and still accruing 511 174 94 212 991 90+ DPD and still accruing 24 28 1 — 53 Nonaccrual loans 1,779 944 21 131 2,875 Total commercial loans $ 405,020 122,767 20,812 19,136 567,735 December 31, 2019 By delinquency status: Current-29 DPD and still accruing $ 352,110 120,967 19,845 19,484 512,406 30-89 DPD and still accruing 423 253 53 252 981 90+ DPD and still accruing 47 31 — — 78 Nonaccrual loans 1,545 573 41 95 2,254 Total commercial loans $ 354,125 121,824 19,939 19,831 515,719 CONSUMER CREDIT QUALITY INDICATORS We have various classes of consumer loans that present unique credit risks. Loan delinquency, FICO credit scores and LTV for 1-4 family mortgage loans are the primary 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. In connection with our adoption of CECL, credit quality information is provided with the year of origination for term loans. Revolving loans may convert to term loans as a result of a contractual provision in the original loan agreement or if modified in a TDR. The revolving loans converted to term loans in the credit card loan category represent credit card loans with modified terms that require payment over a specific term. Table 6.10: Consumer Loan Categories by Delinquency Status and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total March 31, 2020 Real estate 1-4 family first mortgage By delinquency status: Current-29 DPD $ 14,238 59,044 25,047 36,185 41,121 93,490 7,981 2,020 279,126 30-59 DPD 14 65 30 39 64 1,184 38 57 1,491 60-89 DPD 2 3 6 5 8 370 20 27 441 90-119 DPD — — 3 — 6 190 8 17 224 120-179 DPD — — 1 4 7 142 11 22 187 180+ DPD — — 4 7 5 466 5 125 612 Government insured/guaranteed loans (2) 2 32 150 271 498 9,726 — — 10,679 Loans held at fair value — — — — — 160 — — 160 Total real estate 1-4 family first mortgage 14,256 59,144 25,241 36,511 41,709 105,728 8,063 2,268 292,920 Real estate 1-4 family junior mortgage By delinquency status: Current-29 DPD 8 44 51 48 39 1,491 19,178 7,058 27,917 30-59 DPD — — — — — 34 76 119 229 60-89 DPD — — — 1 1 15 28 58 103 90-119 DPD — — — — — 8 19 32 59 120-179 DPD — — — — — 6 17 44 67 180+ DPD — — — — 1 16 10 125 152 Total real estate 1-4 family junior mortgage 8 44 51 49 41 1,570 19,328 7,436 28,527 Credit cards By delinquency status: Current-29 DPD — — — — — — 37,320 259 37,579 30-59 DPD — — — — — — 260 18 278 60-89 DPD — — — — — — 184 13 197 90-119 DPD — — — — — — 167 14 181 120-179 DPD — — — — — — 335 10 345 180+ DPD — — — — — — 2 — 2 Total credit cards — — — — — — 38,268 314 38,582 Automobile By delinquency status: Current-29 DPD 6,334 19,682 9,085 5,509 4,857 2,145 — — 47,612 30-59 DPD 8 158 134 111 168 104 — — 683 60-89 DPD — 49 40 32 53 34 — — 208 90-119 DPD — 18 13 9 15 10 — — 65 120-179 DPD — — — — — — — — — 180+ DPD — — — — — — — — — Total automobile 6,342 19,907 9,272 5,661 5,093 2,293 — — 48,568 Other revolving credit and installment By delinquency status: Current-29 DPD 948 3,580 2,207 1,468 1,298 5,751 17,766 202 33,220 30-59 DPD 1 9 10 12 9 66 19 7 133 60-89 DPD — 5 6 5 5 32 9 4 66 90-119 DPD — 4 6 6 6 31 9 3 65 120-179 DPD — — — — — — 15 2 17 180+ DPD — — — — — 1 2 7 10 Total other revolving credit and installment 949 3,598 2,229 1,491 1,318 5,881 17,820 225 33,511 Total consumer loans $ 21,555 82,693 36,793 43,712 48,161 115,472 83,479 10,243 442,108 (continued on following page) (continued from previous page) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Credit card Automobile Other revolving credit and installment Total December 31, 2019 By delinquency status: Current-29 DPD $ 279,722 28,870 39,935 46,650 33,981 429,158 30-59 DPD 1,136 216 311 882 140 2,685 60-89 DPD 404 115 221 263 81 1,084 90-119 DPD 197 69 202 77 74 619 120-179 DPD 160 71 343 1 18 593 180+ DPD 503 155 1 — 10 669 Government insured/guaranteed loans (2) 10,999 — — — — 10,999 Loans held at fair value 171 — — — — 171 Total consumer loans (excluding PCI) 293,292 29,496 41,013 47,873 34,304 445,978 Total consumer PCI loans (carrying value) (3) 555 13 — — — 568 Total consumer loans $ 293,847 29,509 41,013 47,873 34,304 446,546 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) 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 $6.1 billion at March 31, 2020 , compared with $6.4 billion at December 31, 2019 . (3) 26% of the adjusted unpaid principal balance for consumer PCI loans was 30+ DPD at December 31, 2019 . Of the $2.0 billion of consumer loans not government insured/guaranteed that are 90 days or more past due at March 31, 2020 , $828 million was accruing, compared with $1.9 billion past due and $855 million accruing at December 31, 2019 . 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. Loans not requiring a FICO score totaled $8.9 billion and $9.1 billion at March 31, 2020 and December 31, 2019 , respectively. Substantially all loans not requiring a FICO score are securities-based loans originated through retail brokerage. Table 6.11: Consumer Loan Categories by FICO and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total March 31, 2020 By FICO: Real estate 1-4 family first mortgage < 600 $ 2 27 43 60 92 2,643 209 229 3,305 600-639 10 105 67 68 128 1,663 148 115 2,304 640-679 80 481 297 311 368 3,075 298 171 5,081 680-719 458 1,870 905 1,181 1,301 5,847 665 264 12,491 720-759 1,896 6,104 2,198 2,901 3,147 9,491 1,024 291 27,052 760-799 6,242 16,885 5,542 7,135 7,458 15,595 1,609 298 60,764 800+ 5,522 33,344 15,917 24,461 28,544 55,278 3,824 512 167,402 No FICO available 45 296 122 123 173 2,249 286 388 3,682 Government insured/guaranteed loans (2) 1 32 150 271 498 9,887 — — 10,839 Total real estate 1-4 family first mortgage 14,256 59,144 25,241 36,511 41,709 105,728 8,063 2,268 292,920 Real estate 1-4 family junior lien mortgage < 600 — — — — — 133 370 611 1,114 600-639 — — — — — 82 310 361 753 640-679 — — — — — 134 686 610 1,430 680-719 — — — — — 250 1,697 1,102 3,049 720-759 — — — — — 274 2,751 1,243 4,268 760-799 — — — — — 228 3,785 1,198 5,211 800+ — — — — — 359 9,220 2,009 11,588 No FICO available 8 44 51 49 41 110 509 302 1,114 Total real estate 1-4 family junior lien mortgage 8 44 51 49 41 1,570 19,328 7,436 28,527 Credit Card < 600 — — — — — — 3,117 119 3,236 600-639 — — — — — — 2,657 49 2,706 640-679 — — — — — — 6,291 61 6,352 680-719 — — — — — — 9,324 53 9,377 720-759 — — — — — — 7,866 24 7,890 760-799 — — — — — — 5,176 6 5,182 800+ — — — — — — 3,678 1 3,679 No FICO available — — — — — — 159 1 160 Total credit card — — — — — — 38,268 314 38,582 Automobile < 600 419 2,045 1,163 825 1,082 541 — — 6,075 600-639 687 1,849 715 425 453 216 — — 4,345 640-679 1,031 2,830 1,168 644 596 262 — — 6,531 680-719 1,104 3,383 1,549 885 749 318 — — 7,988 720-759 1,045 3,334 1,554 911 723 312 — — 7,879 760-799 991 3,335 1,533 890 652 270 — — 7,671 800+ 1,065 3,112 1,580 1,064 808 349 — — 7,978 No FICO available — 19 10 17 30 25 — — 101 Total automobile 6,342 19,907 9,272 5,661 5,093 2,293 — — 48,568 Other revolving credit and installment < 600 3 49 65 50 47 204 219 27 664 600-639 12 66 59 40 41 198 188 15 619 640-679 51 226 169 105 96 410 525 23 1,605 680-719 124 472 310 195 172 719 1,005 29 3,026 720-759 191 683 399 248 226 969 1,169 28 3,913 760-799 249 857 445 288 265 1,179 1,524 18 4,825 800+ 274 1,024 621 452 453 2,118 2,690 44 7,676 No FICO available 45 221 161 113 18 84 1,564 41 2,247 FICO not required — — — — — — 8,936 — 8,936 Total other revolving credit and installment 949 3,598 2,229 1,491 1,318 5,881 17,820 225 33,511 Total consumer loans $ 21,555 82,693 36,793 43,712 48,161 115,472 83,479 10,243 442,108 (continued on next page) (continued from prior page) Real estate Real estate Credit Automobile Other Total December 31, 2019 By FICO: < 600 $ 3,264 1,164 3,373 6,041 704 14,546 600-639 2,392 782 2,853 4,230 670 10,927 640-679 5,068 1,499 6,626 6,324 1,730 21,247 680-719 12,844 3,192 9,732 7,871 3,212 36,851 720-759 27,879 4,407 8,376 7,839 4,097 52,598 760-799 61,559 5,483 5,648 7,624 4,915 85,229 800+ 165,460 11,851 4,037 7,900 7,585 196,833 No FICO available 3,656 1,118 368 44 2,316 7,502 FICO not required — — — — 9,075 9,075 Government insured/guaranteed loans (2) 11,170 — — — — 11,170 Total consumer loans (excluding PCI) 293,292 29,496 41,013 47,873 34,304 445,978 Total consumer PCI loans (carrying value) (3) 555 13 — — — 568 Total consumer loans $ 293,847 29,509 41,013 47,873 34,304 446,546 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (3) 41% of the adjusted unpaid principal balance for consumer PCI loans had FICO scores less than 680 and 19% where no FICO was available to us at December 31, 2019 . 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 Loan Categories by LTV/CLTV and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total March 31, 2020 Real estate 1-4 family first mortgage By LTV/CLTV: 0-60% $ 4,143 16,842 8,032 14,961 22,878 76,122 5,503 1,644 150,125 60.01-80% 9,526 34,239 14,133 19,674 17,326 17,228 1,672 401 114,199 80.01-100% 544 7,791 2,714 1,412 814 1,757 585 155 15,772 100.01-120% (2) — 80 96 86 72 310 169 39 852 > 120% (2) — 47 29 27 29 124 71 14 341 No LTV/CLTV available 42 113 87 80 92 300 63 15 792 Government insured/guaranteed loans (3) 1 32 150 271 498 9,887 — — 10,839 Total real estate 1-4 family first mortgage 14,256 59,144 25,241 36,511 41,709 105,728 8,063 2,268 292,920 Real estate 1-4 family junior lien mortgage By LTV/CLTV: 0-60% — — — — — 634 9,526 4,023 14,183 60.01-80% — — — — — 450 6,827 2,055 9,332 80.01-100% — — — — — 290 2,165 971 3,426 100.01-120% (2) — — — — — 102 566 262 930 > 120% (2) — — — — — 33 216 80 329 No LTV/CLTV available 8 44 51 49 41 61 28 45 327 Total real estate 1-4 family junior lien mortgage 8 44 51 49 41 1,570 19,328 7,436 28,527 Total $ 14,264 59,188 25,292 36,560 41,750 107,298 27,391 9,704 321,447 December 31, 2019 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% $ 151,478 14,603 166,081 60.01-80% 114,795 9,663 124,458 80.01-100% 13,867 3,574 17,441 100.01-120% (2) 860 978 1,838 > 120% (2) 338 336 674 No LTV/CLTV available 784 342 1,126 Government insured/guaranteed loans (3) 11,170 — 11,170 Total consumer loans (excluding PCI) 293,292 29,496 322,788 Total consumer PCI loans (carrying value) (4) 555 13 568 Total consumer loans $ 293,847 29,509 323,356 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) 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. (3) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (4) 9% of the adjusted unpaid principal balance for consumer PCI loans have LTV/CLTV amounts greater than 80% at December 31, 2019 . NONACCRUAL LOANS Table 6.13 provides loans on nonaccrual status. In connection with our adoption of CECL, nonaccrual loans may have an allowance for credit losses or a negative allowance for credit losses from expected recoveries of amounts previously written off. Table 6.13: Nonaccrual Loans (1) Amortized cost (in millions) Nonaccrual loans Nonaccrual loans without related allowance for credit losses (2) Recognized interest income March 31, 2020 Commercial: Commercial and industrial $ 1,779 243 16 Real estate mortgage 944 194 8 Real estate construction 21 5 4 Lease financing 131 10 — Total commercial 2,875 452 28 Consumer: Real estate 1-4 family first mortgage 2,372 1,382 44 Real estate 1-4 family junior lien mortgage 769 431 16 Automobile 99 — 3 Other revolving credit and installment 41 — 1 Total consumer 3,281 1,813 64 Total nonaccrual loans $ 6,156 2,265 92 December 31, 2019 Commercial: Commercial and industrial $ 1,545 Real estate mortgage 573 Real estate construction 41 Lease financing 95 Total commercial 2,254 Consumer: Real estate 1-4 family first mortgage 2,150 Real estate 1-4 family junior lien mortgage 796 Automobile 106 Other revolving credit and installment 40 Total consumer 3,092 Total nonaccrual loans (excluding PCI) $ 5,346 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Nonaccrual loans may not have an allowance for credit losses if the loss expectations are zero given solid collateral value. 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 $3.4 billion and $3.5 billion at March 31, 2020 , and December 31, 2019 , respectively, which included $2.7 billion and $2.8 billion , respectively, of loans that are government insured/guaranteed. Under the Consumer Financial Protection Bureau guidelines, we do not commence the foreclosure process on real estate 1-4 family mortgage loans until after the loan is 120 days delinquent. Foreclosure procedures and timelines vary depending on whether the property address resides in a judicial or non-judicial state. Judicial states require the foreclosure to be processed through the state’s courts while non-judicial states are processed without court intervention. Foreclosure timelines vary according to state law. In connection with our actions to support customers during the COVID-19 pandemic, we have suspended certain mortgage foreclosure activities. 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

Leasing Activity

Leasing Activity	3 Months Ended
	Mar. 31, 2020
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. See Note 7 (Leasing Activities) in our 2019 Form 10-K for additional information about our leasing activities. As a Lessor Table 7.1 presents the composition of our leasing revenue. Table 7.1: Leasing Revenue Quarter ended March 31, (in millions) 2020 2019 Interest income on lease financing $ 211 223 Other lease revenues: Variable revenues on lease financing 27 24 Fixed revenues on operating leases 314 373 Variable revenues on operating leases 13 18 Other lease-related revenues (1) (2 ) 28 Lease income 352 443 Total leasing revenue $ 563 666 (1) Predominantly includes net gains (losses) on disposition of assets leased under operating leases or lease financings. As a Lessee Substantially all of our leases are operating leases. Table 7.2 presents balances for our operating leases. Table 7.2: Operating Lease Right of Use (ROU) Assets and Lease Liabilities (in millions) Mar 31, 2020 Dec 31, 2019 ROU assets $ 4,650 4,724 Lease liabilities 5,224 5,297 Table 7.3 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 7.3: Lease Costs Quarter ended March 31, (in millions) 2020 2019 Fixed lease expense – operating leases $ 291 297 Variable lease expense 66 73 Other (1) (14 ) (8 ) Total lease costs $ 343 362 (1) Predominantly includes gains recognized from sale leaseback transactions and sublease rental income.

Equity Securities

Equity Securities	3 Months Ended
	Mar. 31, 2020
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) Mar 31, Dec 31, Held for trading at fair value: Marketable equity securities $ 13,573 27,440 Not held for trading: Fair value: Marketable equity securities (1) 7,708 6,481 Nonmarketable equity securities 6,895 8,015 Total equity securities at fair value 14,603 14,496 Equity method: Low-income housing tax credit investments 11,290 11,343 Private equity 3,351 3,459 Tax-advantaged renewable energy 3,991 3,811 New market tax credit and other 387 387 Total equity method 19,019 19,000 Other: Federal Reserve Bank stock and other at cost (2) 4,512 4,790 Private equity (3) 2,340 2,515 Total equity securities not held for trading 40,474 40,801 Total equity securities $ 54,047 68,241 (1) Includes $3.1 billion and $3.8 billion at March 31, 2020 , and December 31, 2019 , respectively, related to securities held as economic hedges of our deferred compensation plan obligations. (2) Includes $4.5 billion and $4.8 billion at March 31, 2020 , and December 31, 2019 , 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). FAIR VALUE Marketable equity securities held for purposes other than trading partially 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 first quarter 2020 , we recognized pre-tax losses of $339 million related to our LIHTC investments, compared with $273 million in first quarter 2019 . These losses were recognized in other noninterest income. We also recognized total tax benefits of $398 million in first quarter 2020 , which included tax credits recorded to income taxes of $314 million . In first quarter 2019 , total tax benefits were $370 million , which included tax credits of $302 million . 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 $4.2 billion at March 31, 2020 , and $4.3 billion at December 31, 2019 . 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. 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 March 31, (in millions) 2020 2019 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ (803 ) 377 Nonmarketable equity securities (1,104 ) 936 Total equity securities carried at fair value (1,907 ) 1,313 Net gains (losses) from nonmarketable equity securities not carried at fair value: Impairment write-downs (935 ) (36 ) Net unrealized gains related to measurement alternative observable transactions 222 185 Net realized gains on sale — 237 All other — — Total nonmarketable equity securities not carried at fair value (713 ) 386 Net gains (losses) from economic hedge derivatives (1) 1,219 (885 ) Total net gains (losses) from equity securities not held for trading $ (1,401 ) 814 (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 March 31, (in millions) 2020 2019 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 222 185 Gross unrealized losses due to observable price changes — — Impairment write-downs (354 ) (22 ) Realized net gains from sale 2 23 Total net gains (losses) recognized during the period $ (130 ) 186 Table 8.4 presents cumulative carrying value adjustments to nonmarketable equity securities accounted for under the measurement alternative that were still held at the end of each reporting period presented. Table 8.4: Measurement Alternative Cumulative Gains (Losses) (in millions) Mar 31, Dec 31, Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 1,084 973 Gross unrealized losses due to observable price changes (42 ) (42 ) Impairment write-downs (473 ) (134 )

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2020
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) Mar 31, Dec 31, Corporate/bank-owned life insurance $ 20,128 20,070 Accounts receivable (1) 46,762 29,137 Interest receivable: AFS and HTM debt securities 1,705 1,729 Loans 3,038 3,099 Trading and other 708 758 Customer relationship and other amortized intangibles 399 423 Foreclosed assets: Residential real estate: Government insured/guaranteed (1) 43 50 Non-government insured/guaranteed 137 172 Other 72 81 Operating lease assets (lessor) 8,124 8,221 Operating lease ROU assets (lessee) 4,650 4,724 Due from customers on acceptances 128 253 Other 10,269 10,200 Total other assets $ 96,163 78,917 (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 2019 Form 10-K.

Securitizations and Variable In

Securitizations and Variable Interest Entities	3 Months Ended
	Mar. 31, 2020
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. For further description of our involvement with SPEs, see Note 10 (Securitizations and Variable Interest Entities) in our 2019 Form 10-K. Table 10.1 provides the classifications of assets and liabilities in our balance sheet for our transactions with VIEs. 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 Total March 31, 2020 Cash and due from banks $ — 19 — 19 Interest-earning deposits with banks — — — — Debt securities (1): Trading debt securities 1,326 316 — 1,642 Available-for-sale debt securities 1,718 300 — 2,018 Held-to-maturity debt securities 1,158 — — 1,158 Loans 2,196 13,102 77 15,375 Mortgage servicing rights 8,709 — — 8,709 Derivative assets 269 6 — 275 Equity securities 11,337 95 — 11,432 Other assets 1,030 258 — 1,288 Total assets 27,743 14,096 77 41,916 Short-term borrowings — 500 — 500 Derivative liabilities 2 8 — 10 Accrued expenses and other liabilities 154 231 — 385 Long-term debt 4,722 235 76 5,033 Total liabilities 4,878 974 76 5,928 Noncontrolling interests — 33 — 33 Net assets $ 22,865 13,089 1 35,955 December 31, 2019 Cash and due from banks $ — 16 — 16 Interest-earning deposits with banks — 284 — 284 Debt securities (1): Trading debt securities 792 339 — 1,131 Available-for-sale debt securities 1,696 201 — 1,897 Held-to-maturity debt securities 791 — — 791 Loans 2,127 13,170 80 15,377 Mortgage servicing rights 11,884 — — 11,884 Derivative assets 142 1 — 143 Equity securities 11,401 118 — 11,519 Other assets 1,268 239 — 1,507 Total assets 30,101 14,368 80 44,549 Short-term borrowings — 401 — 401 Derivative liabilities 1 3 — 4 Accrued expenses and other liabilities 189 235 — 424 Long-term debt 4,817 587 79 5,483 Total liabilities 5,007 1,226 79 6,312 Noncontrolling interests — 43 — 43 Net assets $ 25,094 13,099 1 38,194 (1) 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). Transactions with Unconsolidated VIEs Our transactions with unconsolidated VIEs include predominantly securitizations of residential and commercial mortgage loans, and investments in tax credit structures. We have various forms of involvement with VIEs, including servicing, holding senior or subordinated interests, and 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 our exposure to unconsolidated VIEs with which we have significant continuing involvement but for which we are not the primary beneficiary. We include transactions where we were the sponsor or servicer and also have other significant forms of continuing involvement. Sponsorship includes transactions where we solely or materially participated in the initial design or structuring of the VIE or marketed the transaction to investors. We consider investments in securities, loans, guarantees, liquidity agreements, commitments and certain derivatives to be other forms of continuing involvement that may be significant. We also include transactions where we transferred assets to a VIE, account for the transfer as a sale, and service the VIE collateral or have other forms of continuing involvement that may be significant (as described above). We exclude certain transactions with unconsolidated VIEs when our continuing involvement is temporary in nature or insignificant in size. We also exclude 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 and advances Derivatives Debt, guarantees, and other commitments Net assets March 31, 2020 Residential mortgage loan securitizations: Conforming (2) $ 1,082,170 2,103 8,607 — (649 ) 10,061 Other/nonconforming 5,226 120 89 — — 209 Commercial mortgage loan securitizations 174,761 2,440 1,043 196 (18 ) 3,661 Tax credit structures 39,499 12,841 — — (4,201 ) 8,640 Other asset-based finance structures 1,314 190 — 71 (8 ) 253 Other 1,118 41 — — — 41 Total $ 1,304,088 17,735 9,739 267 (4,876 ) 22,865 Maximum exposure to loss Debt and equity interests (1) Servicing assets and advances Derivatives Debt, guarantees, and other commitments Total exposure Residential mortgage loan securitizations: Conforming (2) $ 1,582 8,607 — 973 11,162 Other/nonconforming 120 89 — — 209 Commercial mortgage loan securitizations 2,440 1,043 196 11,776 15,455 Tax credit structures 12,841 — — 1,684 14,525 Other asset-based finance structures 190 — 76 79 345 Other 41 — — 157 198 Total $ 17,214 9,739 272 14,669 41,894 Carrying value – asset (liability) (in millions) Total Debt and Servicing Derivatives Debt, guarantees, Net December 31, 2019 Residential mortgage loan securitizations: Conforming (2) $ 1,098,103 1,528 11,931 — (683 ) 12,776 Other/nonconforming 5,178 6 152 — — 158 Commercial mortgage loan securitizations 169,736 2,239 1,069 80 (43 ) 3,345 Tax credit structures 39,091 12,826 — — (4,260 ) 8,566 Other asset-based finance structures 1,355 157 — 61 (20 ) 198 Other 1,167 51 — — — 51 Total $ 1,314,630 16,807 13,152 141 (5,006 ) 25,094 Maximum exposure to loss Debt and equity interests (1) Servicing assets and advances Derivatives Debt, guarantees, and other commitments Total exposure Residential mortgage loan securitizations: Conforming (2) $ 972 11,931 — 937 13,840 Other/nonconforming 6 152 — — 158 Commercial mortgage loan securitizations 2,239 1,069 80 11,667 15,055 Tax credit structures 12,826 — — 1,701 14,527 Other asset-based finance structures 157 — 63 91 311 Other 51 — — 157 208 Total $ 16,251 13,152 143 14,553 44,099 (1) Includes total equity interests of $11.3 billion and $11.4 billion at March 31, 2020 , and December 31, 2019 , 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) Carrying values include assets and related liabilities of $521 million and $556 million at March 31, 2020 , and December 31, 2019 , respectively, related to certain unexercised unconditional repurchase options. These amounts represent the carrying value of the loans and associated debt that would be payable if the option was exercised to repurchase eligible loans from GNMA loan securitizations. These amounts are excluded from maximum exposure to loss as we are not obligated to exercise the options. 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” is determined as the carrying value of our investment in the VIEs excluding the unconditional repurchase options that have not been exercised, 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 transactions with unconsolidated VIEs with which we have a significant continuing involvement, but we are not the primary beneficiary, see Note 10 (Securitizations and Variable Interest Entities) in our 2019 Form 10-K. Loan Sales and Securitization Activity We periodically transfer consumer and commercial 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. 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 information about transfers during the period of assets to unconsolidated VIEs or third-party investors for which we recorded the transfers as sales and have continuing involvement with the transferred assets. In connection with these transfers, we recorded servicing assets, securities, and a liability for repurchase losses which reflects management’s estimate of probable losses related to various representations and warranties for the loans transferred. Each of these interests are initially measured at fair value. Servicing rights are classified as Level 3 measurements, and securities are initially predominantly classified as Level 2. Sales with continuing involvement include securitizations of conforming residential mortgages that are sold to the GSEs or GNMA. Substantially all transfers to these entities resulted in no gain or loss because the loans were already measured at fair value on a recurring basis. Table 10.3: Transfers With Continuing Involvement Quarter ended March 31, (in millions) 2020 2019 Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Net gains (losses) on sale $ 52 69 14 47 Asset balances sold 47,857 2,728 34,103 2,702 Servicing rights recognized 446 34 320 26 Securities recognized 2,313 62 912 — Liability for repurchase losses recognized 3 — 3 — Table 10.4 presents the key weighted-average assumptions we used to measure residential MSRs at the date of securitization. Table 10.4: Residential Mortgage Servicing Rights Residential mortgage servicing rights 2020 2019 Quarter ended March 31, Prepayment speed (1) 12.7 % 13.5 Discount rate 6.5 8.1 Cost to service ($ per loan) (2) $ 91 94 (1) The prepayment speed assumption for residential MSRs 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 due to changes in model assumptions and the mix of modified government-guaranteed loans sold to GNMA. Table 10.5 presents the proceeds related to transfers accounted for as sales in which we have continuing involvement with the transferred financial assets, as well as current period cash flows from continuing involvement with previous transfers accounted for as sales. Cash flows from other interests held predominantly include principal and interest payments received on retained bonds. Repurchases of assets represents cash paid to repurchase loans from investors under representation and warranty obligations or in connection with the exercise of cleanup calls on securitizations. Loss reimbursements is cash paid to reimburse investors for losses on individual loans that are already liquidated. Government insured loans are delinquent loans that we service and have exercised our option to purchase out of GNMA pools. These loans are insured by the FHA or guaranteed by the VA. Table 10.5: Cash Inflows (Outflows) From Sales and Securitization Activity Mortgage loans (in millions) 2020 2019 Quarter ended March 31, Proceeds from securitizations and whole loan sales $ 50,229 36,507 Fees from servicing rights retained 756 780 Cash flows from other interests held 167 111 Repurchases of assets/loss reimbursements: Non-agency securitizations and whole loan transactions — — Government insured loans (1,440 ) (1,942 ) Agency securitizations (26 ) (17 ) Servicing advances, net of recoveries (1) 33 39 (1) Cash flows from servicing advances includes principal and interest payments to investors required by servicing agreements. Retained Interests from Unconsolidated VIEs Table 10.6 provides key economic assumptions and the sensitivity of the current fair value of residential MSRs and other interests held related to unconsolidated VIEs to immediate adverse changes in those assumptions. Amounts for residential MSRs include purchased servicing rights as well as servicing rights resulting from the transfer of loans. See Note 16 (Fair Values of Assets and Liabilities) for additional information on key economic assumptions for residential MSRs. “Other interests held” were obtained when we securitized residential and commercial mortgage loans. Residential mortgage-backed securities retained in securitizations issued through GSEs or GNMA, are excluded from the table because these securities have a remote risk of credit loss due to the GSE or government guarantee. These securities also have economic characteristics similar to GSE or GNMA 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 10.6: Retained Interests from Unconsolidated VIEs Other interests held Residential mortgage servicing rights Commercial ($ in millions, except cost to service amounts) Subordinated bonds Senior bonds Fair value of interests held at March 31, 2020 $ 8,126 924 326 Expected weighted-average life (in years) 4.3 7.1 5.6 Key economic assumptions: Prepayment speed assumption 15.7 % Decrease in fair value from: 10% adverse change $ 475 25% adverse change 1,105 Discount rate assumption 7.1 % 5.4 3.5 Decrease in fair value from: 100 basis point increase $ 293 54 16 200 basis point increase 563 103 30 Cost to service assumption ($ per loan) 112 Decrease in fair value from: 10% adverse change 234 25% adverse change 585 Credit loss assumption 3.7 % — Decrease in fair value from: 10% higher losses $ 28 — 25% higher losses 31 — Fair value of interests held at December 31, 2019 $ 11,517 909 352 Expected weighted-average life (in years) 5.3 7.3 5.5 Key economic assumptions: Prepayment speed assumption 11.9 % Decrease in fair value from: 10% adverse change $ 537 25% adverse change 1,261 Discount rate assumption 7.2 % 4.0 2.9 Decrease in fair value from: 100 basis point increase $ 464 53 16 200 basis point increase 889 103 32 Cost to service assumption ($ per loan) 102 Decrease in fair value from: 10% adverse change 253 25% adverse change 632 Credit loss assumption 3.1 % — Decrease in fair value from: 10% higher losses $ 1 — 25% higher losses 4 — In addition to residential MSRs included in the previous table, we have a small portfolio of commercial MSRs which are carried at lower of cost or market value (LOCOM) with a fair value of $1.5 billion and $1.9 billion at March 31, 2020 , and December 31, 2019 , respectively. Prepayment assumptions do not significantly impact values of commercial MSRs and commercial mortgage bonds as commercial loans generally include contractual restrictions on prepayment. Servicing costs are not a driver of our MSR value as we are typically primary or master servicer; the higher costs of servicing delinquent and foreclosed loans is generally born by the special servicer. 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 March 31, 2020 , and December 31, 2019 , results in a decrease in fair value of $146 million and $205 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 10.7 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 10.7: Off-Balance Sheet Loans Sold or Securitized Net charge-offs (2) Total loans Delinquent loans and foreclosed assets (1) Quarter ended Mar 31, (in millions) Mar 31, 2020 Dec 31, 2019 Mar 31, 2020 Dec 31, 2019 2020 2019 Commercial: Real estate mortgage $ 113,196 112,507 679 776 71 79 Total commercial 113,196 112,507 679 776 71 79 Consumer: Real estate 1-4 family first mortgage 986,570 1,008,446 6,326 6,664 31 67 Real estate 1-4 family junior lien mortgage 12 13 2 2 — — Total consumer 986,582 1,008,459 6,328 6,666 31 67 Total off-balance sheet sold or securitized loans (3) $ 1,099,778 1,120,966 7,007 7,442 102 146 (1) Includes $365 million and $492 million of commercial foreclosed assets and $354 million and $356 million of consumer foreclosed assets at March 31, 2020 , and December 31, 2019 , respectively. (2) 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. (3) At March 31, 2020 , and December 31, 2019 , the table includes total loans of $1.0 trillion at both dates, delinquent loans of $5.2 billion at both dates, and foreclosed assets of $259 million and $251 million , respectively, for FNMA, FHLMC and GNMA. Transactions with Consolidated VIEs and Secured Borrowings Table 10.8 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 10.8: Transactions with Consolidated VIEs and Secured Borrowings Carrying value (in millions) Total VIE assets Assets Liabilities Noncontrolling interests Net assets March 31, 2020 Secured borrowings: Residential mortgage securitizations $ 77 77 (76 ) — 1 Total secured borrowings 77 77 (76 ) — 1 Consolidated VIEs: Commercial and industrial loans and leases 7,760 7,755 (226 ) (11 ) 7,518 Nonconforming residential mortgage loan securitizations 679 567 (236 ) — 331 Commercial real estate loans 5,022 5,022 — — 5,022 Municipal tender option bond securitizations 500 505 (502 ) — 3 Other 247 247 (10 ) (22 ) 215 Total consolidated VIEs 14,208 14,096 (974 ) (33 ) 13,089 Total secured borrowings and consolidated VIEs $ 14,285 14,173 (1,050 ) (33 ) 13,090 December 31, 2019 Secured borrowings: Residential mortgage securitizations $ 81 80 (79 ) — 1 Total secured borrowings 81 80 (79 ) — 1 Consolidated VIEs: Commercial and industrial loans and leases 8,054 8,042 (529 ) (16 ) 7,497 Nonconforming residential mortgage loan securitizations 935 809 (290 ) — 519 Commercial real estate loans 4,836 4,836 — — 4,836 Municipal tender option bond securitizations 401 402 (401 ) — 1 Other 279 279 (6 ) (27 ) 246 Total consolidated VIEs 14,505 14,368 (1,226 ) (43 ) 13,099 Total secured borrowings and consolidated VIEs $ 14,586 14,448 (1,305 ) (43 ) 13,100 We have raised financing through the securitization of certain financial assets in transactions with VIEs accounted for as secured borrowings. We also consolidate VIEs where we are the primary beneficiary. In certain transactions, we provide contractual support in the form of limited recourse and liquidity to facilitate the remarketing of short-term securities issued to third-party investors. Other than this limited contractual support, the assets of the VIEs are the sole source of repayment of the securities held by third parties. For complete descriptions of our accounting for transfers accounted for as secured borrowings and involvement with consolidated VIEs, see Note 10 (Securitizations and Variable Interest Entities) in our 2019 Form 10-K. Other Transactions In addition to the transactions included in the previous tables, we have used wholly-owned trust preferred security VIEs to issue debt securities or preferred equity exclusively to third-party investors. As the sole assets of the VIEs are receivables from us, we do not consolidate the VIEs 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 $686 million and $2.1 billion at March 31, 2020 , and December 31, 2019 , respectively. During first quarter 2020, we liquidated certain of our trust preferred security VIEs. As part of these liquidations, the preferred securities issued by the trusts were canceled and junior subordinated debentures with a total carrying value of $1.4 billion were distributed to the preferred security holders. Prior to the liquidations, we held $10 million of these preferred securities, which were exchanged for junior subordinated debentures upon liquidation and subsequently retired with no impact to earnings. See Note 17 (Preferred Stock) for additional information about trust preferred securities. Certain money market funds are also excluded from the previous tables because they are exempt from the consolidation analysis. We voluntarily waived a portion of our management fees for these money market funds to maintain a minimum level of daily net investment income. The amount of fees waived was $11 million and $10 million in first quarter 2020 and 2019 , respectively.

Mortgage Banking Activities

Mortgage Banking Activities	3 Months Ended
	Mar. 31, 2020
Mortgage Banking Activities [Abstract]
Mortgage Banking Activities	Note 11: Mortgage Banking Activities Mortgage banking activities consist of residential and commercial mortgage originations, sales 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 March 31, (in millions) 2020 2019 Fair value, beginning of period $ 11,517 14,649 Servicing from securitizations or asset transfers (1) 461 341 Sales and other (2) (31 ) (281 ) Net additions 430 60 Changes in fair value: Due to changes in valuation model inputs or assumptions: Mortgage interest rates (3) (3,022 ) (940 ) Servicing and foreclosure costs (4) (73 ) 12 Discount rates (5) 27 100 Prepayment estimates and other (6) (189 ) (63 ) Net changes in valuation model inputs or assumptions (3,257 ) (891 ) Changes due to collection/realization of expected cash flows over time (7) (564 ) (482 ) Total changes in fair value (3,821 ) (1,373 ) Fair value, end of period $ 8,126 13,336 (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. (7) Represents the reduction in the MSR fair value for the cash flows expected to be collected during the period, net of income accreted due to the passage of time. Table 11.2 presents the changes in amortized MSRs. Table 11.2: Analysis of Changes in Amortized MSRs Quarter ended March 31, (in millions) 2020 2019 Balance, beginning of period $ 1,430 1,443 Purchases 8 24 Servicing from securitizations or asset transfers 34 26 Amortization (66 ) (66 ) Balance, end of period (1) $ 1,406 1,427 Fair value of amortized MSRs: Beginning of period $ 1,872 2,288 End of period 1,490 2,149 (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) Mar 31, 2020 Dec 31, 2019 Residential mortgage servicing: Serviced and subserviced for others $ 1,041 1,065 Owned loans serviced 341 343 Total residential servicing 1,382 1,408 Commercial mortgage servicing: Serviced and subserviced for others 573 575 Owned loans serviced 124 124 Total commercial servicing 697 699 Total managed servicing portfolio $ 2,079 2,107 Total serviced for others, excluding subserviced for others $ 1,602 1,629 Ratio of MSRs to related loans serviced for others 0.60 % 0.79 Table 11.4 presents the components of mortgage banking noninterest income. Table 11.4: Mortgage Banking Noninterest Income Quarter ended March 31, (in millions) 2020 2019 Servicing income, net: Servicing fees: Contractually specified servicing fees $ 808 840 Late charges 27 33 Ancillary fees 30 38 Unreimbursed direct servicing costs (1) (107 ) (70 ) Net servicing fees 758 841 Changes in fair value of MSRs carried at fair value: Due to changes in valuation model inputs or assumptions (2) (A) (3,257 ) (891 ) Changes due to collection/realization of expected cash flows over time (3) (564 ) (482 ) Total changes in fair value of MSRs carried at fair value (3,821 ) (1,373 ) Amortization (66 ) (66 ) Net derivative gains from economic hedges (4) (B) 3,400 962 Total servicing income, net 271 364 Net gains on mortgage loan origination/sales activities (5) 108 344 Total mortgage banking noninterest income $ 379 708 Market-related valuation changes to MSRs, net of hedge results (2)(4) (A)+(B) $ 143 71 (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 the reduction in in the MSR fair value for the cash flows expected to be collected during the period, net of income accreted due to the passage of time. (4) 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. (5) Includes net losses of $(929) million and $(151) million in first quarter 2020 and 2019 , respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 December 31, 2019 (in millions) Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value Amortized intangible assets (1): MSRs (2) $ 4,465 (3,059 ) 1,406 4,422 (2,992 ) 1,430 Customer relationship and other intangibles 879 (480 ) 399 947 (524 ) 423 Total amortized intangible assets $ 5,344 (3,539 ) 1,805 5,369 (3,516 ) 1,853 Unamortized intangible assets: MSRs (carried at fair value) (2) $ 8,126 11,517 Goodwill 26,381 26,390 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 March 31, 2020 . 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 Three months ended March 31, 2020 (actual) $ 67 24 91 Estimate for the remainder of 2020 $ 202 71 273 Estimate for year ended December 31, 2021 235 81 316 2022 210 68 278 2023 181 59 240 2024 156 48 204 2025 130 39 169 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 generally one level below the operating segments. Table 12.3: Goodwill (in millions) Community Banking Wholesale Banking Wealth and Investment Management Consolidated Company December 31, 2018 $ 16,685 8,450 1,283 26,418 Foreign currency translation — 2 — 2 March 31, 2019 $ 16,685 8,452 1,283 26,420 December 31, 2019 $ 16,685 8,429 1,276 26,390 Foreign currency translation — (9 ) — (9 ) March 31, 2020 $ 16,685 8,420 1,276 26,381

Guarantees, Pledged Assets and

Guarantees, Pledged Assets and Collateral, and Other Commitments	3 Months Ended
	Mar. 31, 2020
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 and direct pay letters of credit, written options, recourse obligations, and other types of similar arrangements. For complete descriptions of our guarantees, see Note 16 (Guarantees, Pledged Assets and Collateral, and Other Commitments) in our 2019 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 March 31, 2020 Standby letters of credit $ 83 12,016 3,839 2,756 429 19,040 7,183 Direct pay letters of credit — 1,674 3,955 836 40 6,505 1,321 Written options (1) 690 18,799 10,315 2,387 327 31,828 24,176 Loans and MLHFS sold with recourse (2) 28 111 712 1,333 10,039 12,195 10,000 Exchange and clearing house guarantees — — — — 5,054 5,054 — Other guarantees and indemnifications (3) 1 610 3 1 450 1,064 559 Total guarantees $ 802 33,210 18,824 7,313 16,339 75,686 43,239 December 31, 2019 Standby letters of credit $ 36 11,569 4,460 2,812 467 19,308 7,104 Direct pay letters of credit — 1,861 3,815 824 105 6,605 1,184 Written options (1) (345 ) 17,088 10,869 2,341 273 30,571 18,113 Loans and MLHFS sold with recourse (2) 52 114 576 1,356 10,050 12,096 9,835 Exchange and clearing house guarantees — — — — 4,817 4,817 — Other guarantees and indemnifications (3) 1 785 1 3 809 1,598 698 Total guarantees $ (256 ) 31,417 19,721 7,336 16,521 74,995 36,934 (1) Written 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. (2) Represent recourse provided, predominantly to the GSEs, on loans sold under various programs and arrangements. (3) Includes indemnifications provided to certain third-party clearing agents. Outstanding customer obligations under these arrangements were $27 million and $80 million with related collateral of $389 million and $696 million at March 31, 2020 , and December 31, 2019 , respectively. “Maximum exposure to loss” and “Non-investment grade” are required disclosures under GAAP. 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 is more representative of our exposure to loss than maximum exposure to loss. The carrying value represents the fair value of the guarantee, if any, and also includes an ACL for guarantees, if applicable. 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 Related 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 $2.1 billion and $1.6 billion at March 31, 2020 and December 31, 2019 , respectively. These guarantees rank on parity with all of the Parent’s other unsecured and unsubordinated indebtedness. Pledged Assets Table 13.2 provides the carrying amount of on-balance sheet pledged assets and the fair value of other pledged collateral. Other pledged collateral is collateral we have received from third parties, have the right to repledge and is not recognized on our balance sheet. TRADING RELATED ACTIVITY Our trading businesses may pledge debt and equity securities in connection with securities sold under agreements to repurchase (repurchase agreements) and securities lending arrangements. The collateral that we pledge related to our trading activities may include our own collateral as well as collateral that we have received from third parties and have the right to repledge. Substantially all of the trading activity pledged collateral is eligible to be repledged or sold by the secured party. NON-TRADING RELATED ACTIVITY As part of our liquidity management strategy, we may pledge loans, debt securities, and other assets to secure trust and public deposits, borrowings and letters of credit from the Federal Home Loan Bank (FHLB) and FRB and for other purposes as required or permitted by law or insurance statutory requirements. Substantially all of the non-trading activity pledged collateral is not eligible to be repledged or sold by the secured party. VIE RELATED We pledge assets in connection with various types of transactions entered into with VIEs. These pledged assets can only be used to settle the liabilities of those entities. We also have loans recorded on our balance sheet which represent certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. See Note 10 (Securitizations and Variable Interest Entities) for additional information on consolidated VIE assets and VIEs accounted for as secured borrowings. Table 13.2: Pledged Assets (1) (in millions) Mar 31, Dec 31, Related to trading activities: Repledged third-party owned debt and equity securities $ 61,479 60,083 Trading debt securities and other 39,828 51,083 Equity securities 1,122 1,379 Total pledged assets related to trading activities 102,429 112,545 Related to non-trading activities: Loans 400,111 406,106 Debt securities: Available-for-sale 59,116 61,126 Held-to-maturity 3,884 3,685 Mortgage loans held for sale 1,877 2,266 Total pledged assets related to non-trading activities 464,988 473,183 Related to VIEs: Consolidated VIE assets 14,096 14,368 VIEs accounted for as secured borrowings 77 80 Loans eligible for repurchase from GNMA securitizations 533 568 Total pledged assets related to VIEs 14,706 15,016 Total pledged assets $ 582,123 600,744 (1) Prior period amounts have been revised to conform with the current period presentation. 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. Most transactions subject to these agreements do not meet those criteria and thus are not eligible for balance sheet netting. Collateral we pledged consists of non-cash instruments, such as securities or loans, and is not netted on the balance sheet against the related 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) Mar 31, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 128,844 140,773 Gross amounts offset in consolidated balance sheet (1) (22,762 ) (19,180 ) Net amounts in consolidated balance sheet (2) 106,082 121,593 Collateral not recognized in consolidated balance sheet (3) (105,136 ) (120,786 ) Net amount (4) $ 946 807 Liabilities: Repurchase and securities lending agreements Gross amounts recognized (5) $ 101,516 111,038 Gross amounts offset in consolidated balance sheet (1) (22,762 ) (19,180 ) Net amounts in consolidated balance sheet (6) 78,754 91,858 Collateral pledged but not netted in consolidated balance sheet (7) (78,412 ) (91,709 ) Net amount (8) $ 342 149 (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 $86.4 billion and $102.1 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at March 31, 2020 , and December 31, 2019 , respectively. Also includes securities purchased under long-term resale agreements (generally one year or more) classified in loans, which totaled $19.7 billion and $19.5 billion , at March 31, 2020 , and December 31, 2019 , respectively. (3) Represents the fair value of collateral we have received under enforceable MRAs or MSLAs, limited in the table above to the amount of the recognized asset due from each counterparty. At March 31, 2020 , and December 31, 2019 , we have received total collateral with a fair value of $138.7 billion and $150.9 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 $61.1 billion at March 31, 2020 , and $59.1 billion at December 31, 2019 . (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 in the table above to the amount of the recognized liability owed to each counterparty. At March 31, 2020 , and December 31, 2019 , we have pledged total collateral with a fair value of $103.4 billion and $113.3 billion , respectively, substantially all of which may be sold or repledged by the counterparty. (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) Mar 31, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 50,787 48,161 Securities of U.S. States and political subdivisions 89 104 Federal agency mortgage-backed securities 32,027 44,737 Non-agency mortgage-backed securities 1,263 1,818 Corporate debt securities 10,048 7,126 Asset-backed securities 1,460 1,844 Equity securities 721 1,674 Other 514 705 Total repurchases 96,909 106,169 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 134 163 Corporate debt securities 364 223 Equity securities (1) 4,100 4,481 Other 9 2 Total securities lending 4,607 4,869 Total repurchases and securities lending $ 101,516 111,038 (1) Equity securities are generally exchange traded and represent collateral received from third parties that has been repledged. We received the collateral through either margin lending agreements or 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 March 31, 2020 Repurchase agreements $ 75,413 7,681 10,680 3,135 96,909 Securities lending arrangements 4,392 65 150 — 4,607 Total repurchases and securities lending (1) $ 79,805 7,746 10,830 3,135 101,516 December 31, 2019 Repurchase agreements $ 79,793 17,681 4,825 3,870 106,169 Securities lending arrangements 4,724 — 145 — 4,869 Total repurchases and securities lending (1) $ 84,517 17,681 4,970 3,870 111,038 (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 March 31, 2020 , and December 31, 2019 , we had commitments to purchase debt securities of $89 million and $18 million , respectively, and commitments to purchase equity securities of $2.7 billion as of both periods. 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 and indemnifications in Table 13.1 . Also, we have commitments to purchase loans and securities under resale agreements from certain counterparties, including central clearing organizations. The amount of our unfunded contractual commitments was $10.8 billion and $7.5 billion as of March 31, 2020 , and December 31, 2019 , respectively. Given the nature of these commitments, they are excluded from Table 6.4 (Unfunded Credit Commitments) in Note 6 (Loans and Related Allowance for Credit Losses).

Legal Actions

Legal Actions	3 Months Ended
	Mar. 31, 2020
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. On March 18, 2020 , the Company reached a settlement in principle pursuant to which the Company will pay $20.8 million to resolve the cases, subject to final documentation of the settlement agreement. 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 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 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 $547 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 final approval of the settlement on November 21, 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. In January 2020, the court dismissed this action as to all defendants except the Company and a former executive officer and limited the action to two alleged misstatements. In addition, 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 related to the unused portion of guaranteed automobile protection (GAP) waiver or insurance agreements between the customer and dealer and, by assignment, the lender. 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 state court granted final approval of the settlement on January 15, 2020, and a notice of appeal has been filed. 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. CORONAVIRUS AID, RELIEF, AND ECONOMIC SECURITY ACT/PAYMENT PROTECTION PROGRAM Plaintiffs have filed putative class actions in state and federal court in Texas, California, and Colorado against the Company. The actions seek damages and injunctive relief related to the Company’s offering of Paycheck Protection Program (PPP) loans under the Coronavirus Aid, Relief, and Economic Security Act. The Company has also received formal and informal inquiries from federal and state governmental agencies regarding its offering of PPP loans. 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 The United States Department of Justice (Department of Justice) is investigating certain activities in the Company’s foreign exchange business, including whether customers may have received pricing inconsistent with commitments made to those customers. Previous investigations by other federal government agencies have been resolved. 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 final approval of the settlement on December 13, 2019, which was appealed to the United States Court of Appeals for the Second Circuit by settlement objector merchants. Several of the opt-out and direct action litigations have been settled 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 resulted in a $200 million verdict against the Company. Trial in the second case commenced on January 6, 2020, and resulted in a $102.7 million verdict against the Company. The Company has filed post-trial motions to, among other things, vacate the verdicts, and USAA has filed post-trial motions seeking future royalty payments and damages for willful infringement. 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. , Ryder v. Wells Fargo , Liguori v. Wells Fargo , and Dore 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, the United States District Court for the Southern District of Ohio, the United States District Court for the Southern District of New York, and the United States District Court for the Western District of Pennsylvania, 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. The district court in the Hernandez case certified a nationwide breach of contract class for foreclosed borrowers and denied certification on claims pertaining to other impacted borrowers. In March 2020, the Company entered into an agreement pursuant to which the Company will pay $18.5 million to resolve the claims of the certified class in the Hernandez case. 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. NOMURA/NATIXIS MORTGAGE-RELATED LITIGATION In August 2014 and August 2015, Nomura Credit & Capital Inc. (Nomura) and Natixis Real Estate Holdings, LLC (Natixis) filed a total of seven third-party complaints against Wells Fargo Bank, N.A., in New York state court. In the underlying first-party actions, Nomura and Natixis have been sued for alleged breaches of representations and warranties made in connection with residential mortgage-backed securities sponsored by them. In the third-party actions, Nomura and Natixis allege that Wells Fargo, as master servicer, primary servicer or securities administrator, failed to notify Nomura and Natixis of their own breaches, failed to properly oversee the primary servicers, and failed to adhere to accepted servicing practices. Natixis additionally alleges that Wells Fargo failed to perform default oversight duties. Wells Fargo has asserted counterclaims alleging that Nomura and Natixis failed to provide Wells Fargo notice of their representation and warranty breaches. 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. 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. Plaintiffs appealed this decision to the United States Court of Appeals for the Eleventh Circuit. RETAIL SALES PRACTICES MATTERS A number of bodies or entities, including (a) 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, (b) state attorneys general, including the New York Attorney General, and (c) 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 . On February 21, 2020 , the Company entered into an agreement with the Department of Justice to resolve the Department of Justice’s criminal investigation into the Company’s retail sales practices, as well as a separate agreement to resolve the Department of Justice’s civil investigation. As part of the Department of Justice criminal settlement, no charges will be filed against the Company provided the Company abides by all the terms of the agreement. The Department of Justice criminal settlement also includes the Company’s agreement that the facts set forth in the settlement document constitute sufficient facts for the finding of criminal violations of statutes regarding bank records and personal information. On February 21, 2020 , the Company also entered into an order to resolve the SEC’s investigation arising out of the Company’s retail sales practices. The SEC order contains a finding, to which the Company consented, that the facts set forth include violations of Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5 thereunder. As part of the resolution of the Department of Justice and SEC investigations, the Company has agreed to make payments totaling $3.0 billion . In addition, as part of the settlements and included in the $3.0 billion amount, the Company has agreed to the creation of a $500 million Fair Fund for the benefit of investors who were harmed by the conduct covered in the SEC settlement. In addition, a number of lawsuits have 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 against, among others, 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, which asserts similar claims and is 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. The federal court granted final approval of the settlement for its action on April 7, 2020. The state court granted final approval of the settlement for its action on January 15, 2020, and a notice of appeal has been filed. Fourth, multiple employment litigation matters are pending against Wells Fargo, including (a) a purported 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; this action has been dismissed and is now on appeal; and (b) 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. The case is pending trial. 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 $2.5 billion as of March 31, 2020 . 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	3 Months Ended
	Mar. 31, 2020
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 qualifying hedge accounting relationships (fair value or cash flow hedges). 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 18 (Derivatives) in our 2019 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 March 31, 2020 December 31, 2019 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 $ 187,167 3,715 2,199 182,789 2,595 1,237 Foreign exchange contracts 31,800 231 1,812 32,386 341 1,170 Total derivatives designated as qualifying hedging instruments 3,946 4,011 2,936 2,407 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts 358,717 2,732 1,766 235,810 207 160 Equity contracts 16,614 1,969 106 19,263 1,126 224 Foreign exchange contracts 46,486 1,332 233 26,595 118 286 Credit contracts – protection purchased 499 34 — 1,400 27 — Subtotal 6,067 2,105 1,478 670 Customer accommodation trading and other derivatives: Interest rate contracts 12,578,353 52,162 43,587 11,117,542 21,245 17,969 Commodity contracts 85,629 2,316 6,838 79,737 1,421 1,770 Equity contracts 316,754 11,181 10,248 272,145 7,410 10,240 Foreign exchange contracts 343,627 7,128 7,979 364,469 4,755 4,791 Credit contracts – protection sold 15,035 13 78 12,215 12 65 Credit contracts – protection purchased 25,144 106 15 24,030 69 18 Subtotal 72,906 68,745 34,912 34,853 Total derivatives not designated as hedging instruments 78,973 70,850 36,390 35,523 Total derivatives before netting 82,919 74,861 39,326 37,930 Netting (57,896 ) (59,243 ) (25,123 ) (28,851 ) Total $ 25,023 15,618 14,203 9,079 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 $73.1 billion and $69.2 billion of gross derivative assets and liabilities, respectively, at March 31, 2020 , and $33.7 billion and $33.5 billion , respectively, at December 31, 2019 , with counterparties subject to enforceable master netting arrangements that are eligible for balance sheet netting adjustments. The majority of these amounts are interest rate contracts executed in over-the-counter (OTC) markets. The remaining gross derivative assets and liabilities of $9.8 billion and $5.7 billion , respectively, at March 31, 2020 , and $5.6 billion and $4.4 billion , respectively, at December 31, 2019 , 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. Cash collateral receivables and payables that have not been offset against our derivatives were $4.4 billion and $6.4 billion , respectively, at March 31, 2020 , and $6.3 billion and $1.4 billion , respectively, at December 31, 2019 . 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 OTC markets include bilateral contractual arrangements that are not cleared through a central clearing organization but are typically subject to master netting arrangements. Other derivative contracts that are settled through a central clearing organization whether OTC or exchange-traded, are excluded from that 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) Net amounts Percent exchanged in over-the-counter market March 31, 2020 Derivative assets Interest rate contracts $ 58,609 (39,677 ) 18,932 (1,302 ) 17,630 87 % Commodity contracts 2,316 (1,534 ) 782 (3 ) 779 62 Equity contracts 13,150 (9,929 ) 3,221 (802 ) 2,419 66 Foreign exchange contracts 8,691 (6,660 ) 2,031 (107 ) 1,924 100 Credit contracts – protection sold 13 (13 ) — — — 44 Credit contracts – protection purchased 140 (83 ) 57 (3 ) 54 85 Total derivative assets $ 82,919 (57,896 ) 25,023 (2,217 ) 22,806 Derivative liabilities Interest rate contracts $ 47,552 (42,276 ) 5,276 (995 ) 4,281 87 % Commodity contracts 6,838 (1,689 ) 5,149 (2 ) 5,147 90 Equity contracts 10,354 (7,546 ) 2,808 (164 ) 2,644 56 Foreign exchange contracts 10,024 (7,661 ) 2,363 (99 ) 2,264 100 Credit contracts – protection sold 78 (68 ) 10 — 10 87 Credit contracts – protection purchased 15 (3 ) 12 — 12 69 Total derivative liabilities $ 74,861 (59,243 ) 15,618 (1,260 ) 14,358 December 31, 2019 Derivative assets Interest rate contracts $ 24,047 (14,878 ) 9,169 (445 ) 8,724 95 % Commodity contracts 1,421 (888 ) 533 (2 ) 531 80 Equity contracts 8,536 (5,570 ) 2,966 (69 ) 2,897 65 Foreign exchange contracts 5,214 (3,722 ) 1,492 (22 ) 1,470 100 Credit contracts – protection sold 12 (9 ) 3 — 3 84 Credit contracts – protection purchased 96 (56 ) 40 (1 ) 39 97 Total derivative assets $ 39,326 (25,123 ) 14,203 (539 ) 13,664 Derivative liabilities Interest rate contracts $ 19,366 (16,595 ) 2,771 (545 ) 2,226 94 % Commodity contracts 1,770 (677 ) 1,093 (2 ) 1,091 82 Equity contracts 10,464 (6,647 ) 3,817 (319 ) 3,498 81 Foreign exchange contracts 6,247 (4,866 ) 1,381 (169 ) 1,212 100 Credit contracts – protection sold 65 (60 ) 5 (3 ) 2 98 Credit contracts – protection purchased 18 (6 ) 12 — 12 93 Total derivative liabilities $ 37,930 (28,851 ) 9,079 (1,038 ) 8,041 (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 related to derivative assets were $877 million and $231 million and debit valuation adjustments related to derivative liabilities were $280 million and $100 million at March 31, 2020 , and December 31, 2019 , respectively. Cash collateral totaled $9.8 billion and $11.7 billion , netted against derivative assets and liabilities, respectively, at March 31, 2020 , and $2.9 billion and $6.8 billion , respectively, at December 31, 2019 . 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 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 26 (Other Comprehensive Income) for the amounts recognized in other comprehensive income. 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 also use cross-currency swaps to hedge variability in interest payments on fixed-rate foreign currency-denominated long-term debt due to changes in foreign exchange rates. We estimate $218 million pre-tax of deferred net losses related to cash flow hedges in OCI at March 31, 2020 , 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 March 31, 2020 , we are hedging our foreign currency exposure to the variability of future cash flows for all forecasted transactions for a maximum of 10 years . For more information on our accounting hedges, see Note 1 (Summary of Significant Accounting Policies) and Note 18 (Derivatives) in our 2019 Form 10-K. Table 15.3 and Table 15.4 show the net gains (losses) related to derivatives in fair value and cash flow hedging relationships, respectively. Table 15.3: Gains (Losses) Recognized on Fair Value Hedging Relationships Net interest income Noninterest income Total recorded in net income Total recorded in OCI (in millions) Debt securities Mortgage loans held for sale Deposits Long-term debt Other Derivative gains (losses) Derivative gains (losses) Quarter ended March 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 3,472 197 (1,742 ) (1,240 ) 372 N/A 182 Interest contracts: Amounts related to interest settlements on derivatives (46 ) — 70 174 — 198 Recognized on derivatives (1,871 ) (50 ) 530 9,775 — 8,384 — Recognized on hedged items 1,856 50 (511 ) (9,426 ) — (8,031 ) Total gains (losses) (pre-tax) on interest rate contracts (61 ) — 89 523 — 551 — Foreign exchange contracts: Amounts related to interest settlements on derivatives 6 — — (85 ) — (79 ) Recognized on derivatives (1 ) — — 107 (785 ) (679 ) 144 Recognized on hedged items 2 — — (174 ) 764 592 Total gains (losses) (pre-tax) on foreign exchange contracts 7 — — (152 ) (21 ) (166 ) 144 Total gains (losses) (pre-tax) recognized on fair value hedges $ (54 ) — 89 371 (21 ) 385 144 Quarter ended March 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 3,941 152 (2,026 ) (1,927 ) 574 N/A 44 Interest contracts: Amounts related to interest settlements on derivatives 16 — (23 ) (7 ) — (14 ) Recognized on derivatives (814 ) (8 ) 207 1,986 — 1,371 — Recognized on hedged items 817 7 (190 ) (1,947 ) — (1,313 ) Total gains (losses) (pre-tax) on interest rate contracts 19 (1 ) (6 ) 32 — 44 — Foreign exchange contracts: Amounts related to interest settlements on derivatives 10 — — (142 ) — (132 ) Recognized on derivatives (4 ) — — 292 (402 ) (114 ) (26 ) Recognized on hedged items 5 — — (266 ) 391 130 Total gains (losses) (pre-tax) on foreign exchange contracts 11 — — (116 ) (11 ) (116 ) (26 ) Total gains (losses) (pre-tax) recognized on fair value hedges $ 30 (1 ) (6 ) (84 ) (11 ) (72 ) (26 ) Table 15.4: Gains (Losses) Recognized on Cash Flow Hedging Relationships Net interest Income Total recorded in net income Total recorded in OCI (in millions) Loans Long-term debt Derivative gains (losses) Derivative gains (losses) Quarter ended March 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 10,065 (1,240 ) N/A 182 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (56 ) — (56 ) 56 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (56 ) — (56 ) 56 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (2 ) (2 ) 2 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (20 ) Total gains (losses) (pre-tax) on foreign exchange contracts — (2 ) (2 ) (18 ) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (56 ) (2 ) (58 ) 38 Quarter ended March 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 11,354 (1,927 ) N/A 44 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (78 ) — (78 ) 78 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (78 ) — (78 ) 78 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (1 ) (1 ) 1 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (9 ) Total gains (losses) (pre-tax) on foreign exchange contracts — (1 ) (1 ) (8 ) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (78 ) (1 ) (79 ) 70 Table 15.5 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 15.5: 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 March 31, 2020 Available-for-sale debt securities (5) $ 34,959 2,750 9,567 261 Mortgage loans held for sale 514 24 — — Deposits (41,081 ) (837 ) (35 ) 2 Long-term debt (147,069 ) (15,325 ) (21,214 ) 131 December 31, 2019 Available-for-sale debt securities (5) $ 36,896 1,110 9,486 278 Mortgage loans held for sale 961 (12 ) — — Deposits (43,716 ) (324 ) — — Long-term debt (127,423 ) (5,827 ) (25,750 ) 173 (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 $3.0 billion for debt securities and $(5.0) billion for long-term debt as of March 31, 2020 , and $1.2 billion for debt securities and $(5.2) billion for long-term debt as of December 31, 2019 . (3) The balance includes $649 million and $136 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of March 31, 2020 , and $790 million and $109 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of December 31, 2019 , 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 Derivatives not designated as hedging instruments include economic hedges and derivatives entered into for customer accommodation trading purposes. We use economic hedge derivatives to manage our exposure to interest rate risk, equity price risk, foreign currency risk, and credit risk. 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. For more information on economic hedges and other derivatives, see Note 18 (Derivatives) to Financial Statements in our 2019 Form 10-K. Table 15.6 shows the net gains (losses) recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 15.6: 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 March 31, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,471 — — 29 2,500 Equity contracts — 1,219 — (28 ) 1,191 Foreign exchange contracts — — — 627 627 Credit contracts — — — 16 16 Subtotal (2) 2,471 1,219 — 644 4,334 Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) 553 — (2,463 ) — (1,910 ) Commodity contracts — — 112 — 112 Equity contracts — — 4,749 73 4,822 Foreign exchange contracts — — (557 ) — (557 ) Credit contracts — — 281 — 281 Subtotal 553 — 2,122 73 2,748 Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 3,024 1,219 2,122 717 7,082 Noninterest income (in millions) Mortgage banking Net gains (losses) from equity securities Net gains (losses) from trading activities Other Total Quarter ended March 31, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 811 — — 5 816 Equity contracts — (885 ) — 7 (878 ) Foreign exchange contracts — — — (24 ) (24 ) Credit contracts — — — 15 15 Subtotal 811 (885 ) — 3 (71 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 118 — (284 ) — (166 ) Commodity contracts — — 51 — 51 Equity contracts — — (2,149 ) (273 ) (2,422 ) Foreign exchange contracts — — 14 — 14 Credit contracts — — (44 ) — (44 ) Subtotal 118 — (2,412 ) (273 ) (2,567 ) Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 929 (885 ) (2,412 ) (270 ) (2,638 ) (1) Mortgage banking amounts for first quarter 2020 are comprised of gains (losses) of $3.4 billion related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $(929) million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. The corresponding amounts for first quarter 2019 are comprised of gains (losses) of $962 million offset by gains (losses) of $(151) million , respectively. 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 15.7 provides details of sold and purchased credit derivatives. Table 15.7: Sold and Purchased Credit Derivatives Notional amount (in millions) Fair value asset 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 March 31, 2020 Credit default swaps on: Corporate bonds $ 11 11 3,602 825 2,492 1,110 2,753 2020 - 2029 Structured products — 13 37 37 36 1 110 2034 - 2047 Credit protection on: Default swap index 2 1 4,339 1,118 1,577 2,762 5,497 2020 - 2029 Commercial mortgage-backed securities index — 28 318 60 293 25 50 2047 - 2058 Asset-backed securities index — 8 41 41 41 — 1 2045 - 2046 Other — 17 6,698 6,230 — 6,698 12,793 2020 - 2049 Total credit derivatives $ 13 78 15,035 8,311 4,439 10,596 21,204 December 31, 2019 Credit default swaps on: Corporate bonds $ 8 1 2,855 707 1,885 970 2,447 2020 - 2029 Structured products — 25 74 69 63 11 111 2022 - 2047 Credit protection on: Default swap index 1 — 2,542 120 550 1,992 8,105 2020 - 2029 Commercial mortgage-backed securities index 3 26 322 67 296 26 50 2047 - 2058 Asset-backed securities index — 8 41 41 41 — 1 2045 - 2046 Other — 5 6,381 5,738 — 6,381 11,881 2020 - 2049 Total credit derivatives $ 12 65 12,215 6,742 2,835 9,380 22,595 Protection sold represents the estimated maximum exposure to loss that would be incurred under an assumed hypothetical circumstance, where the value of our interests and any associated collateral declines to zero, without any consideration of recovery or offset from any economic hedges. We believe this hypothetical circumstance to be an extremely remote possibility and accordingly, this required disclosure is not an indication of expected loss. The amounts under non-investment grade represent the notional amounts of those credit derivatives on which we have a higher risk of being required to perform under the terms of the credit derivative and are a function of the underlying assets. We consider the risk of performance to be high if the underlying assets under the credit derivative have an external rating that is below investment grade or an internal credit default grade that is equivalent thereto. We believe the net protection sold, which is representative of the net notional amount of protection sold and purchased with identical underlyings, in combination with other protection purchased, is more representative of our exposure to loss than either non-investment grade or protection sold. Other protection purchased represents additional protection, which may offset the exposure to loss for protection sold, that was not purchased with an identical underlying of the protection sold. Credit-Risk Contingent Features Certain of our derivative contracts contain provisions whereby if the credit rating of our debt were to be downgraded by certain major credit rating agencies, the counterparty could demand additional collateral or require termination or replacement of derivative instruments in a net liability position. Table 15.8 illustrates our exposure to such derivatives with credit-risk contingent features, collateral we have posted, and the additional collateral we would be required to post if the credit rating of our debt was downgraded below investment grade. Table 15.8: Credit-Risk Contingent Features (in billions) Mar 31, Dec 31, Net derivative liabilities with credit-risk contingent features $ 16.1 10.4 Collateral posted 13.9 9.1 Additional collateral to be posted upon a below investment grade credit rating (1) 2.2 1.3 (1) Any credit rating below investment grade requires us to post the maximum amount of collateral.

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	3 Months Ended
	Mar. 31, 2020
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, write-downs of individual assets or application of the measurement alternative for nonmarketable equity securities. Assets recorded on a nonrecurring basis are presented in Table 16.9 in this Note. Table 16.15 includes estimates of fair value for financial instruments that are not recorded at fair value. See Note 1 (Summary of Significant Accounting Policies) in our 2019 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 19 (Fair Values of Assets and Liabilities) in our 2019 Form 10-K. FAIR VALUE HIERARCHY We classify our assets and liabilities measured at fair value as either Level 1, Level 2 or Level 3 in the fair value hierarchy. The highest priority (Level 1) is assigned to valuations based on unadjusted quoted prices in active markets and the lowest priority (Level 3) is assigned to valuations based on significant unobservable inputs. See Note 1 (Summary of Significant Accounting Policies) in our 2019 Form 10-K for a detailed description of the fair value hierarchy. In the determination of the classification of financial instruments in Level 2 or Level 3 of the fair value hierarchy, we consider all available information, including observable market data, indications of market liquidity and orderliness, and our understanding of the valuation techniques and significant inputs used. For securities in inactive markets, we use a predetermined percentage to evaluate the impact of fair value adjustments derived from weighting both external and internal indications of value to determine if the instrument is classified as Level 2 or Level 3. Otherwise, the classification of Level 2 or Level 3 is based upon the specific facts and circumstances of each instrument or instrument category and judgments are made regarding the significance of the Level 3 inputs to the instruments’ fair value measurement in its entirety. If Level 3 inputs are considered significant, the instrument is classified as Level 3. We do not classify equity securities 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 generally use NAV per share as the fair value measurement for certain nonmarketable equity fund investments. Marketable equity securities with published NAVs are classified in the fair value hierarchy. Fair Value Measurements from Vendors For certain assets and liabilities, we obtain fair value measurements from vendors and we record the unadjusted fair value in our financial statements. For additional information, see Note 19 (Fair Values of Assets and Liabilities) in our 2019 Form 10-K. Table 16.1 presents unadjusted fair value measurements obtained from third-party pricing services classified within the fair value hierarchy. Unadjusted fair value measurements obtained from brokers and fair value measurements obtained from brokers or third-party pricing services that we have adjusted to determine the fair value are excluded from Table 16.1 . The unadjusted fair value measurements obtained from brokers for available-for-sale debt securities were $18 million in Level 2 assets and $123 million in Level 3 assets at March 31, 2020 , and $45 million and $126 million at December 31, 2019 , respectively. Table 16.1: Fair Value Measurements obtained from Third-Party Pricing Services March 31, 2020 December 31, 2019 (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Trading debt securities 2,027 357 — 634 329 — Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 11,036 — — 13,460 1,500 — Securities of U.S. states and political subdivisions — 37,793 66 — 39,868 34 Mortgage-backed securities — 163,329 185 — 167,172 42 Other debt securities (1) — 34,603 743 — 38,067 650 Total available-for-sale debt securities 11,036 235,725 994 13,460 246,607 726 Marketable equity securities — 98 — — 110 — Derivative assets 41 6 — 12 1 — Derivative liabilities (25 ) (8 ) — (11 ) (3 ) — (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 March 31, 2020 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 35,069 4,638 — — 39,707 Securities of U.S. states and political subdivisions — 2,972 — — 2,972 Collateralized loan obligations — 472 154 — 626 Corporate debt securities — 12,392 34 — 12,426 Mortgage-backed securities — 23,738 177 — 23,915 Asset-backed securities — 742 24 — 766 Other trading debt securities — 13 — — 13 Total trading debt securities 35,069 44,967 389 — 80,425 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 11,036 — — — 11,036 Securities of U.S. states and political subdivisions — 37,793 351 — 38,144 Mortgage-backed securities: Federal agencies — 160,214 — — 160,214 Residential — 745 31 — 776 Commercial — 3,500 154 — 3,654 Total mortgage-backed securities — 164,459 185 — 164,644 Corporate debt securities 33 4,692 1,130 — 5,855 Collateralized loan and other debt obligations — 24,532 636 — 25,168 Asset-backed securities: Automobile loans and leases — 884 — — 884 Home equity loans — 12 — — 12 Other asset-backed securities — 3,380 110 — 3,490 Total asset-backed securities — 4,276 110 — 4,386 Other debt securities — 1,996 — — 1,996 Total available-for-sale debt securities 11,069 237,748 2,412 (2) — 251,229 Mortgage loans held for sale — 13,508 3,157 — 16,665 Loans held for sale — 1,654 19 — 1,673 Loans — — 160 — 160 Mortgage servicing rights (residential) — — 8,126 — 8,126 Derivative assets: Interest rate contracts 152 57,695 762 — 58,609 Commodity contracts — 2,301 15 — 2,316 Equity contracts 4,418 7,371 1,361 — 13,150 Foreign exchange contracts 41 8,626 24 — 8,691 Credit contracts — 76 77 — 153 Netting — — — (57,896 ) (57,896 ) Total derivative assets 4,611 76,069 2,239 (57,896 ) 25,023 Equity securities – excluding securities at NAV: Marketable 20,983 295 3 — 21,281 Nonmarketable — 15 6,751 — 6,766 Total equity securities 20,983 310 6,754 — 28,047 Total assets included in the fair value hierarchy $ 71,732 374,256 23,256 (57,896 ) 411,348 Equity securities at NAV (3) 129 Total assets recorded at fair value 411,477 Derivative liabilities: Interest rate contracts $ (158 ) (47,317 ) (77 ) — (47,552 ) Commodity contracts — (6,779 ) (59 ) — (6,838 ) Equity contracts (4,600 ) (4,610 ) (1,144 ) — (10,354 ) Foreign exchange contracts (25 ) (9,969 ) (30 ) — (10,024 ) Credit contracts — (63 ) (30 ) — (93 ) Netting — — — 59,243 59,243 Total derivative liabilities (4,783 ) (68,738 ) (1,340 ) 59,243 (15,618 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (9,881 ) (103 ) — — (9,984 ) Mortgage-backed securities — (92 ) — — (92 ) Corporate debt securities — (5,520 ) — — (5,520 ) Equity securities (1,984 ) — — — (1,984 ) Other securities — (23 ) — — (23 ) Total short sale liabilities (11,865 ) (5,738 ) — — (17,603 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (16,648 ) (74,476 ) (1,342 ) 59,243 (33,223 ) (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) Largely 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. (3) 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, 2019 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 32,335 4,382 — — 36,717 Securities of U.S. states and political subdivisions — 2,434 — — 2,434 Collateralized loan obligations — 555 183 — 738 Corporate debt securities — 11,006 38 — 11,044 Mortgage-backed securities — 27,712 — — 27,712 Asset-backed securities — 1,081 — — 1,081 Other trading debt securities — 5 2 — 7 Total trading debt securities 32,335 47,175 223 — 79,733 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 13,460 1,500 — — 14,960 Securities of U.S. states and political subdivisions — 39,924 413 — 40,337 Mortgage-backed securities: Federal agencies — 162,453 — — 162,453 Residential — 827 — — 827 Commercial — 3,892 42 — 3,934 Total mortgage-backed securities — 167,172 42 — 167,214 Corporate debt securities 37 6,159 367 — 6,563 Collateralized loan and other debt obligations — 29,055 640 — 29,695 Asset-backed securities: Automobile loans and leases — 951 — — 951 Home equity loans — — — — — Other asset-backed securities — 3,635 103 — 3,738 Total asset-backed securities — 4,586 103 — 4,689 Other debt securities — 1 — — 1 Total available-for-sale debt securities 13,497 248,397 1,565 (2) — 263,459 Mortgage loans held for sale — 15,408 1,198 — 16,606 Loans held for sale — 956 16 — 972 Loans — — 171 — 171 Mortgage servicing rights (residential) — — 11,517 — 11,517 Derivative assets: Interest rate contracts 26 23,792 229 — 24,047 Commodity contracts — 1,413 8 — 1,421 Equity contracts 2,946 4,135 1,455 — 8,536 Foreign exchange contracts 12 5,197 5 — 5,214 Credit contracts — 49 59 — 108 Netting — — — (25,123 ) (25,123 ) Total derivative assets 2,984 34,586 1,756 (25,123 ) 14,203 Equity securities – excluding securities at NAV: Marketable 33,702 216 3 — 33,921 Nonmarketable — 22 7,847 — 7,869 Total equity securities 33,702 238 7,850 — 41,790 Total assets included in the fair value hierarchy $ 82,518 346,760 24,296 (25,123 ) 428,451 Equity securities at NAV (3) 146 Total assets recorded at fair value 428,597 Derivative liabilities: Interest rate contracts $ (23 ) (19,328 ) (15 ) — (19,366 ) Commodity contracts — (1,746 ) (24 ) — (1,770 ) Equity contracts (2,011 ) (6,729 ) (1,724 ) — (10,464 ) Foreign exchange contracts (11 ) (6,213 ) (23 ) — (6,247 ) Credit contracts — (53 ) (30 ) — (83 ) Netting — — — 28,851 28,851 Total derivative liabilities (2,045 ) (34,069 ) (1,816 ) 28,851 (9,079 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (9,035 ) (31 ) — — (9,066 ) Mortgage-backed securities — (2 ) — — (2 ) Corporate debt securities — (5,915 ) — — (5,915 ) Equity securities (2,447 ) — — — (2,447 ) Other securities — — — — — Total short sale liabilities (11,482 ) (5,948 ) — — (17,430 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (13,527 ) (40,017 ) (1,818 ) 28,851 (26,511 ) (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) 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. (3) 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 March 31, 2020 , are presented in Table 16.3 . Table 16.3: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended March 31, 2020 Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) related to assets and liabilities held at period end included in (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 Net income (4) Other compre- hensive income Quarter ended March 31, 2020 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — — — — — Collateralized loan obligations 183 (69 ) — 19 21 — 154 (69 ) — Corporate debt securities 38 (4 ) — 3 — (3 ) 34 (3 ) — Mortgage-backed securities — (42 ) — 171 48 — 177 (42 ) — Asset-backed securities — (2 ) — (5 ) 31 — 24 (2 ) — Other trading debt securities 2 (1 ) — (1 ) — — — (1 ) — Total trading debt securities 223 (118 ) — 187 100 (3 ) 389 (117 ) (5) — Available-for-sale debt securities: Securities of U.S. states and political subdivisions 413 — (2 ) (21 ) 32 (71 ) 351 — — Mortgage-backed securities: Residential — (5 ) (3 ) 26 13 — 31 (5 ) (3 ) Commercial 42 3 (13 ) (2 ) 124 — 154 — (12 ) Total mortgage-backed securities 42 (2 ) (16 ) 24 137 — 185 (5 ) (15 ) Corporate debt securities 367 (52 ) (16 ) — 831 — 1,130 (54 ) (16 ) Collateralized loan and other debt obligations 640 3 (53 ) (12 ) 58 — 636 — (53 ) Asset-backed securities: Other asset-backed securities 103 — (4 ) (18 ) 29 — 110 — (4 ) Total asset-backed securities 103 — (4 ) (18 ) 29 — 110 — (4 ) Total available-for-sale debt securities 1,565 (51 ) (91 ) (27 ) 1,087 (71 ) 2,412 (59 ) (6 ) (88 ) Mortgage loans held for sale 1,198 (61 ) — 700 1,322 (2 ) 3,157 (64 ) (7 ) — Loans held for sale 16 (2 ) — (2 ) 7 — 19 1 — Loans 171 — — (11 ) — — 160 (2 ) (7 ) — Mortgage servicing rights (residential) (8) 11,517 (3,821 ) — 430 — — 8,126 (3,257 ) (7 ) — Net derivative assets and liabilities: Interest rate contracts 214 744 — (273 ) — — 685 531 — Commodity contracts (16 ) (80 ) — 58 (6 ) — (44 ) (27 ) — Equity contracts (269 ) 430 — 73 (10 ) (7 ) 217 451 — Foreign exchange contracts (18 ) 10 — 2 — — (6 ) (2 ) — Credit contracts 29 15 — 3 — — 47 17 — Total derivative contracts (60 ) 1,119 — (137 ) (16 ) (7 ) 899 970 (9 ) — Equity securities: Marketable 3 — — — — — 3 — — Nonmarketable 7,847 (1,101 ) — — 7 (2 ) 6,751 (1,103 ) — Total equity securities 7,850 (1,101 ) — — 7 (2 ) 6,754 (1,103 ) (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) 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 from trading activities in the income statement. (6) Included in net gains from debt securities and provision for credit losses - 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 income, net gains from trading activities and from 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 quarter ended March 31, 2020 . Table 16.4: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended March 31, 2020 (in millions) Purchases Sales Issuances Settlements Net Quarter ended March 31, 2020 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 85 (56 ) — (10 ) 19 Corporate debt securities 10 (7 ) — — 3 Mortgage-backed securities 195 (24 ) — — 171 Asset-backed securities — (5 ) — — (5 ) Other trading debt securities — (1 ) — — (1 ) Total trading debt securities 290 (93 ) — (10 ) 187 Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — — (21 ) (21 ) Mortgage-backed securities: Residential 26 — — — 26 Commercial — — — (2 ) (2 ) Total mortgage-backed securities 26 — — (2 ) 24 Corporate debt securities — — — — — Collateralized loan and other debt obligations — — — (12 ) (12 ) Asset-backed securities: Other asset-backed securities — (5 ) — (13 ) (18 ) Total asset-backed securities — (5 ) — (13 ) (18 ) Total available-for-sale debt securities 26 (5 ) — (48 ) (27 ) Mortgage loans held for sale 23 (69 ) 843 (97 ) 700 Loans held for sale — (1 ) — (1 ) (2 ) Loans 1 — 2 (14 ) (11 ) Mortgage servicing rights (residential) (1) — (32 ) 461 1 430 Net derivative assets and liabilities: Interest rate contracts — — — (273 ) (273 ) Commodity contracts — — — 58 58 Equity contracts — — — 73 73 Foreign exchange contracts — — — 2 2 Credit contracts 6 (3 ) — — 3 Total derivative contracts 6 (3 ) — (140 ) (137 ) Equity securities: Marketable — — — — — Nonmarketable — — — — — Total equity securities — — — — — 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 quarter ended March 31, 2019 , are presented in Table 16.5 . Table 16.5: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended March 31, 2019 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 March 31, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — (2 ) — (1 ) — — Collateralized loan obligations 237 (3 ) — 41 — — 275 1 Corporate debt securities 34 2 — 4 1 — 41 2 Other trading debt securities 16 (1 ) — — — — 15 — Total trading debt securities 290 (2 ) — 43 1 (1 ) 331 3 (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 444 — 3 23 — — 470 — Mortgage-backed securities: Residential — — — — — — — — Commercial 41 — — — — — 41 — Total mortgage-backed securities 41 — — — — — 41 — Corporate debt securities 370 1 4 2 — — 377 — Collateralized loan and other debt obligations 800 6 (4 ) (47 ) — — 755 — Asset-backed securities: Other asset-backed securities 389 — (1 ) (26 ) — — 362 — Total asset-backed securities 389 — (1 ) (26 ) — — 362 — Total available-for-sale debt securities 2,044 7 2 (48 ) — — 2,005 — (6) Mortgage loans held for sale 997 15 — (66 ) 56 (4 ) 998 15 (7) Loans held for sale 60 — — 11 37 (37 ) 71 — Loans 244 — — (19 ) — — 225 (2 ) (7) Mortgage servicing rights (residential) (8) 14,649 (1,373 ) — 60 — — 13,336 (891 ) (7) Net derivative assets and liabilities: Interest rate contracts 25 187 — (111 ) — — 101 132 Commodity contracts 4 (51 ) — 27 2 — (18 ) (15 ) Equity contracts (17 ) (119 ) — (3 ) 9 (32 ) (162 ) (114 ) Foreign exchange contracts (26 ) 7 — 3 — — (16 ) 11 Credit contracts 35 8 — 6 — — 49 13 Total derivative contracts 21 32 — (78 ) 11 (32 ) (46 ) 27 (9) Equity securities: Nonmarketable 5,468 926 — (1 ) — (12 ) 6,381 926 Total equity securities 5,468 926 — (1 ) — (12 ) 6,381 926 (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 from trading activities in the income statement. (6) Included in net gains from 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 income, net gains from trading activities and from 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 quarter ended March 31, 2019 . Table 16.6: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended March 31, 2019 (in millions) Purchases Sales Issuances Settlements Net Quarter ended March 31, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — (2 ) (2 ) Collateralized loan obligations 130 (87 ) — (2 ) 41 Corporate debt securities 5 (1 ) — — 4 Other trading debt securities — — — — — Total trading debt securities 135 (88 ) — (4 ) 43 Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 49 (26 ) 23 Mortgage-backed securities: Residential — — — — — Commercial — — — — — Total mortgage-backed securities — — — — — Corporate debt securities 3 — — (1 ) 2 Collateralized loan and other debt obligations — — — (47 ) (47 ) Asset-backed securities: Other asset-backed securities — (3 ) 66 (89 ) (26 ) Total asset-backed securities — (3 ) 66 (89 ) (26 ) Total available-for-sale debt securities 3 (3 ) 115 (163 ) (48 ) Mortgage loans held for sale 16 (93 ) 46 (35 ) (66 ) Loans held for sale 12 (1 ) — — 11 Loans 2 — 3 (24 ) (19 ) Mortgage servicing rights (residential) (1) — (281 ) 341 — 60 Net derivative assets and liabilities: Interest rate contracts — — — (111 ) (111 ) Commodity contracts — — — 27 27 Equity contracts — — — (3 ) (3 ) Foreign exchange contracts — — — 3 3 Credit contracts 6 — — — 6 Total derivative contracts 6 — — (84 ) (78 ) 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). Table 16.7 and Table 16.8 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 inherent in the 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 internal models 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. Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. For information on how changes in significant unobservable inputs affect the fair values of Level 3 assets and liabilities, see Note 19 (Fair Values of Assets and Liabilities) in our 2019 Form 10-K. Table 16.7: Valuation Techniques – Recurring Basis – Marc h 31, 2020 ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique(s) Significant Unobservable Inputs Range of Inputs Positive (Negative) Weighted Average March 31, 2020 Trading and available-for-sale debt securities: Securities of U.S. states and political subdivisions: Government, healthcare and other revenue bonds $ 285 Discounted cash flow Discount rate 1.6 - 5.4 % 2.3 66 Vendor priced Collateralized loan and other debt obligations 154 Market comparable pricing Comparability adjustment (27.8 ) - 137.9 6.8 636 Vendor priced Corporate debt securities 865 Discounted cash flow Discount rate 4.0 - 14.9 5.5 103 Market comparable pricing Comparability adjustment (32.7 ) - 14.2 (8.3 ) 196 Vendor priced Mortgage-backed securities 177 Market comparable pricing Comparability adjustment (60.6 ) - 26.2 (4.6 ) 185 Vendor priced Asset-backed securities: Diversified payment rights (1) 76 Discounted cash flow Discount rate 2.5 - 4.7 3.7 Other commercial and consumer 24 Market comparable pricing Comparability adjustment (7.0 ) - (5.6 ) (5.8 ) 34 Vendor priced Mortgage loans held for sale (residential) 952 Discounted cash flow Default rate 0.0 - 18.2 1.2 Discount rate 2.7 - 5.5 4.7 Loss severity 0.0 - 32.0 22.8 Prepayment rate 7.3 - 18.2 12.8 2,205 Market comparable pricing Comparability adjustment (53.3 ) - 0.0 (6.3 ) Loans (2) 160 Discounted cash flow Discount rate 3.9 - 4.4 4.2 Default rate 0.0 23.1 0.8 Prepayment rate 7.8 - 100.0 85.0 Loss severity 0.0 - 39.7 14.2 Mortgage servicing rights (residential) 8,126 Discounted cash flow Cost to service per loan (3) $ 59 - 622 112 Discount rate 6.3 - 9.4 % 7.1 Prepayment rate (4) 11.3 - 26.6 15.7 Net derivative assets and (liabilities): Interest rate contracts 255 Discounted cash flow Default rate 0.0 - 5.0 1.6 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 14.8 65 Market comparable pricing Comparability adjustment (14.1 ) (8.9 ) (11.8 ) Interest rate contracts: derivative loan commitments 365 Discounted cash flow Fall-out factor 1.0 - 99.0 28.0 Initial-value servicing (37.1 ) - 134.0 bps 35.0 Equity contracts 123 Discounted cash flow Conversion factor (9.0 ) - 0.0 % (7.7 ) Weighted average life 0.3 - 2.8 yrs 1.4 94 Option model Correlation factor (77.0 ) - 99.0 % 37.4 Volatility factor 6.5 - 92.9 26.3 Credit contracts 3 Market comparable pricing Comparability adjustment (78.9 ) - 135.2 (13.6 ) 44 Option model Credit spread 0.1 - 49.2 2.7 Loss severity 12.0 - 60.0 45.6 Nonmarketable equity securities 6,751 Market comparable pricing Comparability adjustment 3.5 - 22.9 14.4 Insignificant Level 3 assets, net of liabilities (30 ) Total level 3 assets, net of liabilities $ 21,914 (5) (1) Securities backed by specified sources of current and future receivables generated from non-US originators. (2) Consists of reverse mortgage loans. (3) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $59 - $229 . (4) 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. (5) Consists of total Level 3 assets of $23.3 billion and total Level 3 liabilities of $1.3 billion , before netting of derivative balances. Table 16.8: Valuation Techniques – Recurring Basis – Dece mber 31, 2019 ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique(s) Significant Unobservable Inputs Range of Inputs Positive (Negative) Weighted Average December 31, 2019 Trading and available-for-sale debt securities: Securities of U.S. states and political subdivisions: Government, healthcare and other revenue bonds $ 379 Discounted cash flow Discount rate 1.3 - 5.4 % 2.4 34 Vendor priced Collateralized loan and other debt obligations 183 Market comparable pricing Comparability adjustment (15.0 ) - 19.2 1.3 640 Vendor priced Corporate debt securities 220 Discounted cash flow Discount rate 3.2 14.9 9.2 60 Market comparable pricing Comparability adjustment (19.7 ) 14.0 (4.4 ) 125 Vendor priced Asset-backed securities: Diversified payment rights (1) 92 Discounted cash flow Discount rate 2.3 - 3.1 2.8 Other commercial and consumer 11 Vendor priced Mortgage loans held for sale (residential) 1,183 Discounted cash flow Default rate 0.0 - 15.5 0.7 Discount rate 3.0 - 5.6 4.5 Loss severity 0.0 - 43.5 21.7 Prepayment rate 5.7 - 15.4 7.8 15 Market comparable pricing Comparability adjustment (56.3 ) - (6.3 ) (40.3 ) Loans (2) 171 Discounted cash flow Discount rate 3.9 - 4.3 4.1 Prepayment rate 6.0 - 100.0 85.6 Loss severity 0.0 - 36.5 14.1 Mortgage servicing rights (residential) 11,517 Discounted cash flow Cost to service per loan (3) $ 61 - 495 102 Discount rate 6.0 - 13.6 % 7.2 Prepayment rate (4) 9.6 - 24.4 11.9 Net derivative assets and (liabilities): Interest rate contracts 146 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 68 Discounted cash flow Fall-out factor 1.0 - 99.0 16.7 Initial-value servicing (32.2 ) - 149.0 bps 36.4 Equity contracts 147 Discounted cash flow Conversion factor (8.8 ) - 0.0 % (7.7 ) Weighted average life 0.5 - 3.0 yrs 1.5 (416 ) Option model Correlation factor (77.0 ) - 99.0 % 23.8 Volatility factor 6.8 - 100.0 18.7 Credit contracts 2 Market comparable pricing Comparability adjustment (56.1 ) - 10.8 (16.0 ) 27 Option model Credit spread 0.0 - 17.8 0.8 Loss severity 12.0 - 60.0 45.6 Nonmarketable equity securities 7,847 Market comparable pricing Comparability adjustment (20.2 ) - (4.2 ) (14.6 ) Insignificant Level 3 assets, net of liabilities 27 Total level 3 assets, net of liabilities $ 22,478 (5) (1) Securities backed by specified sources of current and future receivables generated from non-U.S. originators. (2) Consists of reverse mortgage loans. (3) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $61 - $231 . (4) 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. (5) Consists of total Level 3 assets of $24.3 billion and total Level 3 liabilities of $1.8 billion , before netting of derivative balances. For information on the valuation techniques and significant unobservable inputs used for our Level 3 assets and liabilities, see Note 19 (Fair Value of Assets and Liabilities) in our 2019 Form 10-K. Assets and Liabilities Recorded at Fair Value on a Nonrecurring Basis We may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of LOCOM accounting, write-downs of individual assets or use of the measurement alternative fo

Preferred Stock

Preferred Stock	3 Months Ended
	Mar. 31, 2020
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. All classes of preferred stock, except the Dividend Equalization Preferred Shares and the ESOP Cumulative Convertible Preferred Stock, qualify as Tier 1 capital. Table 17.1: Preferred Stock Shares March 31, 2020 December 31, 2019 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) — — 1,000 3,500,000 Series L 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock (3) 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 (4) 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 Series Z 4.750% Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,500 — — ESOP Cumulative Convertible Preferred Stock (5) — 1,071,418 — 1,071,418 Total 5,832,228 9,251,728 (1) Preferred Stock, Series I, 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 London Interbank Offered Rate (LIBOR) plus 0.93% and 5.56975%. (2) Floating rate for Preferred Stock, Series K, is three-month LIBOR plus 3.77%. In first quarter 2020, the remaining $1.8 billion of Preferred Stock, Series K, was redeemed. (3) Preferred Stock, Series L, may be converted at any time, at the option of the holder, into 6.3814 shares of our common stock, plus cash in lieu of fractional shares, subject to anti-dilution adjustments. (4) In first quarter 2020, $669 million of Preferred Stock, Series T, was redeemed. (5) See the ESOP Cumulative Convertible Preferred Stock section in this Note for additional information about the liquidation preference. Table 17.2: Preferred Stock – Shares Issued and Carrying Value March 31, 2020 December 31, 2019 (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) Floating Class A Preferred Stock 25,010 2,501 2,501 — 25,010 2,501 2,501 — Series K (2) Floating Non-Cumulative Perpetual Class A Preferred Stock — — — — 1,802,000 1,802 1,546 256 Series L (3) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 3,967,995 3,968 3,200 768 3,967,995 3,968 3,200 768 Series N 5.20% Non-Cumulative Perpetual Class A Preferred Stock 30,000 750 750 — 30,000 750 750 — Series O 5.125% Non-Cumulative Perpetual Class A Preferred Stock 26,000 650 650 — 26,000 650 650 — Series P 5.25% Non-Cumulative Perpetual Class A Preferred Stock 25,000 625 625 — 25,000 625 625 — Series Q 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 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 33,600 840 840 — 33,600 840 840 — Series S 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 (4) 6.00% Non-Cumulative Perpetual Class A Preferred Stock 5,280 131 131 — 32,000 800 800 — Series U 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 6.00% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series W 5.70% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series X 5.50% Non-Cumulative Perpetual Class A Preferred Stock 46,000 1,150 1,150 — 46,000 1,150 1,150 — Series Y 5.625% Non-Cumulative Perpetual Class A Preferred Stock 27,600 690 690 — 27,600 690 690 — Series Z 4.750% Non-Cumulative Perpetual Class A Preferred Stock 80,500 2,013 2,013 — — — — — ESOP Cumulative Convertible Preferred Stock 1,071,418 1,072 1,072 — 1,071,418 1,072 1,072 — Total 5,743,949 $ 22,115 21,347 768 7,492,169 $ 22,573 21,549 1,024 (1) Floating rate for Preferred Stock, Series I, 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%. In first quarter 2020, the remaining $1.8 billion of Preferred Stock, Series K, was redeemed. (3) Preferred Stock, Series L, may be converted at any time, at the option of the holder, into 6.3814 shares of our common stock, plus cash in lieu of fractional shares, subject to anti-dilution adjustments. (4) In first quarter 2020, $669 million of Preferred Stock, Series T, was 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) Mar 31, Dec 31, Mar 31, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 254,945 254,945 255 255 7.00 % 8.00 % 2017 192,210 192,210 192 192 7.00 8.00 2016 197,450 197,450 198 198 9.30 10.30 2015 116,784 116,784 117 117 8.90 9.90 2014 136,151 136,151 136 136 8.70 9.70 2013 97,948 97,948 98 98 8.50 9.50 2012 49,134 49,134 49 49 10.00 11.00 2011 26,796 26,796 27 27 9.00 10.00 Total ESOP Preferred Stock (1) 1,071,418 1,071,418 $ 1,072 1,072 Unearned ESOP shares (2) $ (1,143 ) (1,143 ) (1) At March 31, 2020, and December 31, 2019, additional paid-in capital included $71 million and $71 million , respectively, related to ESOP preferred stock. (2) 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	3 Months Ended
	Mar. 31, 2020
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 reporting process, see Note 22 (Operating Segments). Table 18.1 : Revenue by Operating Segment Quarter ended Mar 31, Community Banking Wholesale Banking Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Net interest income (1) $ 6,787 7,248 4,136 4,534 867 1,101 (478 ) (572 ) 11,312 12,311 Noninterest income: Service charges on deposit accounts 700 610 508 483 5 4 (4 ) (3 ) 1,209 1,094 Trust and investment fees: Brokerage advisory, commissions and other fees 518 449 90 78 2,397 2,124 (523 ) (458 ) 2,482 2,193 Trust and investment management 194 210 131 114 582 676 (206 ) (214 ) 701 786 Investment banking (99 ) (20 ) 490 412 1 5 (1 ) (3 ) 391 394 Total trust and investment fees 613 639 711 604 2,980 2,805 (730 ) (675 ) 3,574 3,373 Card fees 809 858 83 86 1 1 (1 ) (1 ) 892 944 Other fees: Lending related charges and fees (1) 50 65 278 282 2 2 (2 ) (2 ) 328 347 Cash network fees 106 109 — — — — — — 106 109 Commercial real estate brokerage commissions — — 1 81 — — — — 1 81 Wire transfer and other remittance fees 66 64 43 48 2 2 (1 ) (1 ) 110 113 All other fees (1) 63 94 24 26 — — — — 87 120 Total other fees 285 332 346 437 4 4 (3 ) (3 ) 632 770 Mortgage banking (1) 340 641 40 68 (3 ) (3 ) 2 2 379 708 Insurance (1) 11 11 75 78 19 17 (10 ) (10 ) 95 96 Net gains (losses) from trading activities (1) 29 5 41 333 (7 ) 19 1 — 64 357 Net gains (losses) on debt securities (1) 194 37 43 88 — — — — 237 125 Net gains (losses) from equity securities (1) (1,028 ) 601 (95 ) 77 (278 ) 136 — — (1,401 ) 814 Lease income (1) — — 352 443 — — — — 352 443 Other income of the segment (1) 756 768 (423 ) (120 ) 127 (5 ) (88 ) (69 ) 372 574 Total noninterest income 2,709 4,502 1,681 2,577 2,848 2,978 (833 ) (759 ) 6,405 9,298 Revenue $ 9,496 11,750 5,817 7,111 3,715 4,079 (1,311 ) (1,331 ) 17,717 21,609 (1) These revenues are related to financial assets and liabilities, including loans, leases, securities and derivatives, with additional details included in other footnotes to our financial statements. 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 Mar 31, Community Wholesale Wealth and Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Overdraft fees $ 484 417 1 1 — — — — 485 418 Account charges 216 193 507 482 5 4 (4 ) (3 ) 724 676 Service charges on deposit accounts $ 700 610 508 483 5 4 (4 ) (3 ) 1,209 1,094 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 Mar 31, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Asset-based revenue (1) $ 398 343 — — 1,805 1,580 (398 ) (343 ) 1,805 1,580 Transactional revenue 102 89 3 16 432 387 (107 ) (98 ) 430 394 Other revenue 18 17 87 62 160 157 (18 ) (17 ) 247 219 Brokerage advisory, commissions and other fees $ 518 449 90 78 2,397 2,124 (523 ) (458 ) 2,482 2,193 (1) We earned trailing commissions of $275 million and $280 million for first quarter 2020 and 2019 , 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 Mar 31, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Investment management fees $ — 1 — — 489 477 — — 489 478 Trust fees 194 209 89 82 102 168 (206 ) (214 ) 179 245 Other revenue — — 42 32 (9 ) 31 — — 33 63 Trust and investment management fees $ 194 210 131 114 582 676 (206 ) (214 ) 701 786 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 Mar 31, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Credit card interchange and network revenues (1) $ 134 189 83 86 1 1 (1 ) (1 ) 217 275 Debit card interchange and network revenues 513 507 — — — — — — 513 507 Late fees, cash advance fees, balance transfer fees, and annual fees 162 162 — — — — — — 162 162 Card fees $ 809 858 83 86 1 1 (1 ) (1 ) 892 944 (1) The cost of credit card rewards and rebates of $385 million and $354 million for the quarters ended March 31, 2020 and 2019 , 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 included 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 included in the Wholesale Banking operating segment. In October 2019, we sold our commercial real estate brokerage business (Eastdil). 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 included in in the Community Banking and Wholesale Banking operating segments. ALL OTHER FEES include various types of fees for products or services such as merchant payment services, safe deposit boxes, and loan syndication agency services. These fees are generally recognized over time as we perform the services. Most of these fees are included in the Community Banking operating segment.

Employee Benefits

Employee Benefits	3 Months Ended
	Mar. 31, 2020
Defined Benefit Plan [Abstract]
Employee Benefits	Note 19: Employee Benefits and Other Expenses 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 have accrued 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 23 (Employee Benefits and Other Expenses) in our 2019 Form 10-K. Table 19.1 presents the components of net periodic benefit cost. Service cost is reported in employee benefits expense and all other components of net periodic benefit cost are reported in other noninterest expense on the consolidated statement of income. Table 19.1: Net Periodic Benefit Cost 2020 2019 Pension benefits Pension benefits (in millions) Qualified Non-qualified Other benefits Qualified Non-qualified Other benefits Quarter ended March 31, Service cost $ 3 — — 3 — — Interest cost 86 4 4 105 6 5 Expected return on plan assets (148 ) — (6 ) (142 ) — (7 ) Amortization of net actuarial loss (gain) 36 4 (5 ) 37 2 (4 ) Amortization of prior service credit — — (2 ) — — (2 ) Settlement loss — 3 — — 2 — Net periodic benefit cost $ (23 ) 11 (9 ) 3 10 (8 ) Other Expenses Table 19.2 separately presents other expenses exceeding 1% of the sum of net interest income and total noninterest income in any of the periods presented. Table 19.2: Other Expenses Quarter ended March 31, (in millions) 2020 2019 Outside professional services $ 727 678 Contract services 630 563 Operating losses 464 238 Leases (1) 260 286 Advertising and promotion 181 237 Other 955 1,141 Total other noninterest expense $ 3,217 3,143 (1) Represents expenses for assets we lease to customers.

Earnings and Dividends Per Comm

Earnings and Dividends Per Common Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings and Dividends 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 March 31, (in millions, except per share amounts) 2020 2019 Wells Fargo net income $ 653 5,860 Less: Preferred stock dividends and other (1) 611 353 Wells Fargo net income applicable to common stock (numerator) $ 42 5,507 Earnings per common share Average common shares outstanding (denominator) 4,104.8 4,551.5 Per share $ 0.01 1.21 Diluted earnings per common share Average common shares outstanding 4,104.8 4,551.5 Add: Stock options (2) — 2.5 Restricted share rights (2) 30.5 30.0 Diluted average common shares outstanding (denominator) 4,135.3 4,584.0 Per share $ 0.01 1.20 (1) The quarter ended March 31, 2020 , includes $272 million from the elimination of discounts or issuance costs associated with redemptions of preferred stock. (2) Calculated using the treasury stock method. Table 20.2 presents the outstanding Convertible Preferred Stock, Series L, 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 March 31, (in millions) 2020 2019 Convertible Preferred Stock, Series L (1) 25.3 25.3 (1) Calculated using the if-converted method. Table 20.3 presents dividends declared per common share. Table 20.3: Dividends Declared Per Common Share Quarter ended March 31, 2020 2019 Per common share $ 0.51 0.45

Other Comprehensive Income

Other Comprehensive Income	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 2019 (in millions) Before tax Tax effect Net of tax Before tax Tax effect Net of tax Debt securities: Net unrealized gains (losses) arising during the period $ (110 ) 22 (88 ) 2,831 (695 ) 2,136 Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 66 (16 ) 50 45 (11 ) 34 Net gains on debt securities (237 ) 48 (189 ) (125 ) 31 (94 ) Other noninterest income (1 ) — (1 ) (1 ) — (1 ) Subtotal reclassifications to net income (172 ) 32 (140 ) (81 ) 20 (61 ) Net change (282 ) 54 (228 ) 2,750 (675 ) 2,075 Derivative and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) 144 (35 ) 109 (26 ) 7 (19 ) Cash Flow Hedges: Net unrealized losses arising during the period on cash flow hedges (20 ) 5 (15 ) (9 ) 2 (7 ) Reclassification of net losses to net income on cash flow hedges: Interest income on loans 56 (14 ) 42 78 (19 ) 59 Interest expense on long-term debt 2 (1 ) 1 1 — 1 Subtotal reclassifications to net income 58 (15 ) 43 79 (19 ) 60 Net change 182 (45 ) 137 44 (10 ) 34 Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period 3 (1 ) 2 (4 ) 1 (3 ) Reclassification of amounts to non interest expense (3): Amortization of net actuarial loss 35 (8 ) 27 35 (8 ) 27 Settlements and other 1 — 1 — — — Subtotal reclassifications to non interest expense 36 (8 ) 28 35 (8 ) 27 Net change 39 (9 ) 30 31 (7 ) 24 Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period (194 ) 1 (193 ) 42 (2 ) 40 Net change (194 ) 1 (193 ) 42 (2 ) 40 Other comprehensive income (loss) $ (255 ) 1 (254 ) 2,867 (694 ) 2,173 Less: Other comprehensive loss from noncontrolling interests, net of tax (1 ) — Wells Fargo other comprehensive income (loss), net of tax $ (253 ) 2,173 (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 Fair value hedges (1) Cash flow hedges (2) Defined benefit plans adjustments Foreign currency translation adjustments Cumulative other comprehensive income Quarter ended March 31, 2020 Balance, beginning of period $ 1,552 (180 ) (298 ) (2,223 ) (162 ) (1,311 ) Net unrealized gains (losses) arising during the period (88 ) 109 (15 ) 2 (193 ) (185 ) Amounts reclassified from accumulated other comprehensive income (140 ) — 43 28 — (69 ) Net change (228 ) 109 28 30 (193 ) (254 ) Less: Other comprehensive loss from noncontrolling interests — — — — (1 ) (1 ) Balance, end of period $ 1,324 (71 ) (270 ) (2,193 ) (354 ) (1,564 ) Quarter ended March 31, 2019 Balance, beginning of period $ (3,122 ) (178 ) (507 ) (2,296 ) (233 ) (6,336 ) Transition adjustment (3) 481 — — — — 481 Balance, January 1, 2019 (2,641 ) (178 ) (507 ) (2,296 ) (233 ) (5,855 ) Net unrealized gains (losses) arising during the period 2,136 (19 ) (7 ) (3 ) 40 2,147 Amounts reclassified from accumulated other comprehensive income (61 ) — 60 27 — 26 Net change 2,075 (19 ) 53 24 40 2,173 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, end of period $ (566 ) (197 ) (454 ) (2,272 ) (193 ) (3,682 ) (1) Substantially all of the beginning and end of period amounts for fair value hedges are foreign exchange contracts. (2) Substantially all of the beginning and end of period amounts for cash flow hedges are interest rate contracts. (3) 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 . For more information see Note 1 (Summary of Significant Accounting Policies).

Operating Segments

Operating Segments	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Operating Segments	Note 22: Operating Segments As of March 31, 2020 , we had 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 reporting process. The management reporting process is based on U.S. GAAP with specific adjustments, such as for funds transfer pricing for asset/liability management, for shared revenues and expenses, and tax-equivalent adjustments to consistently reflect income from taxable and tax-exempt sources. The management reporting 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. On February 11, 2020, we announced a new organizational structure with five principal lines of business: Consumer and Small Business Banking; Consumer Lending; Commercial Banking; Corporate and Investment Banking; and Wealth and Investment Management. The Company is currently in the process of transitioning to this new organizational structure, including identifying leadership for some of these principal business lines and aligning management reporting and allocation methodologies. These changes will not impact the consolidated financial results of the Company, but are expected to result in changes to our operating segments. We will update our operating segment disclosures, including comparative financial results, when the Company completes its transition and is managed in accordance with the new organizational structure. For a description of our operating segments see Note 27 (Operating Segments) in our 2019 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) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Quarter ended Mar 31, Net interest income (2) $ 6,787 7,248 4,136 4,534 867 1,101 (478 ) (572 ) 11,312 12,311 Provision (reversal of provision) for credit losses 1,718 710 2,288 134 8 4 (9 ) (3 ) 4,005 845 Noninterest income 2,709 4,502 1,681 2,577 2,848 2,978 (833 ) (759 ) 6,405 9,298 Noninterest expense 7,116 7,689 3,763 3,838 3,103 3,303 (934 ) (914 ) 13,048 13,916 Income (loss) before income tax expense (benefit) 662 3,351 (234 ) 3,139 604 772 (368 ) (414 ) 664 6,848 Income tax expense (benefit) (3) 644 424 (546 ) 369 153 192 (92 ) (104 ) 159 881 Net income (loss) before noncontrolling interests 18 2,927 312 2,770 451 580 (276 ) (310 ) 505 5,967 Less: Net income (loss) from noncontrolling interests (137 ) 104 1 — (12 ) 3 — — (148 ) 107 Net income (loss) $ 155 2,823 311 2,770 463 577 (276 ) (310 ) 653 5,860 Average loans $ 462.6 458.2 484.5 476.4 78.5 74.4 (60.6 ) (59.0 ) 965.0 950.0 Average assets 1,039.2 1,015.4 885.0 844.5 88.1 83.2 (61.6 ) (60.0 ) 1,950.7 1,883.1 Average deposits 798.6 765.6 456.6 409.8 151.4 153.2 (68.6 ) (66.5 ) 1,338.0 1,262.1 (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 WIM 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) Income tax expense (benefit) for our Wholesale Banking operating segment included income tax credits related to low-income housing and renewable energy investments of $491 million and $427 million for first quarter 2020 and 2019 , respectively.

Regulatory and Agency Capital R

Regulatory and Agency Capital Requirements	3 Months Ended
	Mar. 31, 2020
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 in accordance with Basel III capital requirements. We must report the lower of our Common Equity Tier 1 (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 requirements for calculating CET1 and tier 1 capital, along with RWAs, are fully phased-in. However, the requirements for determining tier 2 and total capital are still in accordance with Transition Requirements and are scheduled to be fully phased-in by the end of 2021. Accordingly, the information presented below reflects fully phased-in CET1 capital, tier 1 capital, and RWAs, but reflects total capital still in accordance with Transition Requirements. At March 31, 2020 , the Bank and our other insured depository institutions were considered well-capitalized under the requirements of the Federal Deposit Insurance Act. 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 March 31, 2020 , the Bank met these requirements. Table 23.1: Regulatory Capital Information Wells Fargo & Company Wells Fargo Bank, N.A. March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019 (in millions, except ratios) Advanced Approach Standardized Approach Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Regulatory capital: Common equity tier 1 $ 134,751 134,751 138,760 138,760 147,537 147,537 145,149 145,149 Tier 1 154,277 154,277 158,949 158,949 147,537 147,537 145,149 145,149 Total 184,068 192,121 188,333 196,223 162,300 169,846 158,615 166,056 Assets: Risk-weighted assets (1) $ 1,181,271 1,262,808 1,165,079 1,245,853 1,061,736 1,171,371 1,047,054 1,152,791 Adjusted average assets (2) 1,922,129 1,922,129 1,913,297 1,913,297 1,711,367 1,711,367 1,695,807 1,695,807 Regulatory capital ratios: Common equity tier 1 capital (1) 11.41 % 10.67 * 11.91 11.14 * 13.90 12.60 * 13.86 12.59 * Tier 1 capital (1) 13.06 12.22 * 13.64 12.76 * 13.90 12.60 * 13.86 12.59 * Total capital (1) 15.58 15.21 * 16.16 15.75 * 15.29 14.50 * 15.15 14.40 * Tier 1 leverage (2) 8.03 8.03 8.31 8.31 8.62 8.62 8.56 8.56 Wells Fargo & Company Wells Fargo Bank, N.A. March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019 Supplementary leverage (3): Total leverage exposure $ 2,256,314 2,247,729 2,017,471 2,006,180 Supplementary leverage ratio 6.84 % 7.07 7.31 7.24 *Denotes the lowest capital ratio as determined under the Advanced and Standardized Approaches. (1) RWAs and capital ratios for December 31, 2019, have been revised as a result of a decrease in RWAs under the Advanced Approach due to the correction of duplicated operational loss amounts. (2) The leverage ratio consists of Tier 1 capital divided by total average assets, excluding goodwill and certain other items. (3) The supplementary leverage ratio (SLR) 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 March 31, 2020 , and December 31, 2019 . Table 23.2: Minimum Required Regulatory Capital Ratios – Transition Requirements (1) Wells Fargo & Company Wells Fargo Bank, N.A. March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019 Regulatory capital ratios: Common equity tier 1 capital 9.000 % 9.000 7.000 7.000 Tier 1 capital 10.500 10.500 8.500 8.500 Total capital 12.500 12.500 10.500 10.500 Tier 1 leverage 4.000 4.000 4.000 4.000 Supplementary leverage (2) 5.000 5.000 6.000 6.000 (1) At March 31, 2020 , 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 March 31, 2020 . Effective October 1, 2020, the 2.500% capital conservation buffer will be replaced under the Standardized Approach by a stress capital buffer that will be calculated annually as part of the Comprehensive Capital Analysis and Review (CCAR). (2) Wells Fargo & Company is required to maintain a SLR of at least 5.000% (comprised of a 3.000% minimum requirement plus a supplementary leverage buffer of 2.000% ) to avoid restrictions on capital distributions and discretionary bonus payments. The Bank is required to maintain a SLR of at least 6.000% to be considered well-capitalized under applicable regulatory capital adequacy guidelines.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2020
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, 2019 ( 2019
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 Related 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 2019 Form 10-K.
Accounting Standards Adopted in 2020	Accounting Standards Adopted in 2020 In first quarter 2020 , we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2019-04 – Codification Improvements to Topic 326, Financial Instruments – Credit Losses , Topic 815, Derivatives and Hedging , and Topic 825, Financial Instruments . This Update includes guidance on recoveries of financial assets, which is included in the discussion for ASU 2016-13 below. • ASU 2018-17 – Consolidation (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities • ASU 2018-15 – Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force) • ASU 2018-13 – Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement. • ASU 2017-04 – Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment • ASU 2016-13 – Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and related subsequent Updates
Interest Income and Gain (Loss) Recognition [Policy Text Block]	INTEREST INCOME AND GAIN/LOSS RECOGNITION Unamortized premiums and discounts are recognized in interest income over the contractual life of the security using the effective interest method, except for purchased callable debt securities carried at a premium. For purchased callable debt securities carried at a premium, the premium is amortized into interest income to the earliest call date using the effective interest method. As principal repayments are received on securities (e.g., mortgage-backed securities (MBS)), a proportionate amount of the related premium or discount is recognized in income so that the effective interest rate on the remaining portion of the security continues unchanged. We recognize realized gains and losses on the sale of debt securities in net gains (losses) on debt securities within noninterest income using the specific identification method.
Credit Loss, Financial Instrument [Policy Text Block]	IMPAIRMENT AND CREDIT LOSSES Unrealized losses of AFS debt securities are driven by a number of factors, including changes in interest rates and credit spreads which impact most types of debt securities with additional considerations for certain types of debt securities: • Debt securities of U.S. Treasury and federal agencies, including federal agency MBS, are not impacted by credit movements given the explicit or implicit guarantees provided by the U.S. government. • Debt securities of U.S. states and political subdivisions are most impacted by changes in the relationship between municipal and term funding credit curves rather than by changes in the credit quality of the underlying securities. • Structured securities, such as MBS and collateralized loan obligations (CLO), are also impacted by changes in projected collateral losses of assets underlying the security. For debt securities where fair value is less than amortized cost basis, we recognize impairment in earnings if we have the intent to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. Impairment is recognized equal to the entire difference between the amortized cost basis and the fair value of the security and is classified as net gains (losses) from debt securities within noninterest income. Following the recognition of impairment, the security’s new amortized cost basis is the previous basis less impairment. For debt securities where fair value is less than amortized cost basis where we did not recognize impairment in earnings, we set up an allowance for credit losses as of the balance sheet date. See “Allowance for Credit Losses” section in this Note. TRANSFERS BETWEEN CATEGORIES OF DEBT SECURITIES AFS debt securities transferred to the HTM classification are recorded at fair value and the unrealized gains or losses resulting from the transfer of these securities continue to be reported in cumulative OCI. The cumulative OCI balance is amortized into earnings over the same period as the unamortized premiums and discounts using the effective interest method. Any allowance for credit losses previously recorded under the AFS model on securities transferred to HTM is reversed and an allowance for credit losses is subsequently recorded under the HTM debt security model. NONACCRUAL AND PAST DUE, AND CHARGE-OFF POLICIES We generally place debt securities on nonaccrual status using factors similar to those described for loans. When we place a debt security on nonaccrual status, we reverse the accrued unpaid interest receivable against interest income and suspend the amortization of premiums and accretion of discounts. If the ultimate collectability of the principal is in doubt on a nonaccrual debt security, any cash collected is first applied to reduce the security’s amortized cost basis to zero, followed by recovery of amounts previously charged off, and subsequently to interest income. Generally, we return a debt security to accrual status when all delinquent interest and principal become current under the contractual terms of the security and collectability of remaining principal and interest is no longer doubtful. Our debt securities are considered past due when contractually required principal or interest payments have not been made on the due dates. Our charge-off policy for debt securities are similar to those described for loans. Subsequent to charge-off, the debt security will be designated as nonaccrual and follow the process described above for any cash received. Allowance for Credit Losses The ACL is management’s estimate of the current expected credit losses in the loan portfolio and unfunded credit commitments, at the balance sheet date, excluding loans and unfunded credit commitments carried at fair value or held for sale. Additionally, we maintain an ACL on AFS and HTM debt securities, other financing receivables measured at amortized cost, and other off-balance sheet credit exposures. While we attribute portions of the allowance to specific financial asset classes (loan and debt security portfolios), loan portfolio segments (commercial and consumer) or major security type, the entire ACL is available to absorb credit losses of the Company. Our ACL process involves procedures to appropriately consider the unique risk characteristics of our financial asset classes, portfolio segments, and major security types. For each loan portfolio segment and each major HTM debt security type, losses are estimated collectively for groups of loans or securities with similar risk characteristics. For loans and securities that do not share similar risk characteristics with other financial assets, the losses are estimated individually, which primarily includes our impaired large commercial loans and non-accruing HTM debt securities. For AFS debt securities, losses are estimated at the tax-lot level. Our ACL amounts are influenced by a variety of factors, including changes in loan and debt security volumes, portfolio credit quality, and general economic conditions. General economic conditions are forecasted using economic variables which will create volatility as those variables change over time. See Table 1.2 for key economic variables used for our loan portfolios. Table 1.2: Key Economic Variables Loan Portfolio Key economic variables Total commercial • Gross domestic product • Commercial real estate asset prices, where applicable • Unemployment rate • Corporate investment-grade bond spreads Real estate 1-4 family mortgage • Home price index • Unemployment rate Other consumer (including credit card, automobile, and other revolving credit and installment) • Unemployment rate Our approach for estimating expected life-time credit losses for loans and debt securities includes the following key components: • An initial loss forecast period of one year for all portfolio segments and classes of financing receivables and off- balance-sheet credit exposures. This period reflects management’s expectation of losses based on forward-looking economic scenarios over that time. • A historical loss forecast period covering the remaining contractual term, adjusted for expected prepayments and certain expected extensions, renewals, or modifications, by portfolio segment and class of financing receivables based on the changes in key historical economic variables during representative historical expansionary and recessionary periods. • A reversion period of up to 2 years connecting the initial loss forecast to the historical loss forecast based on economic conditions at the measurement date. • Utilization of discounted cash flow (DCF) methods to measure credit impairment for loans modified in a troubled debt restructuring, unless they are collateral dependent and measured at the fair value of the collateral. The DCF methods obtain estimated life-time credit losses using the initial and historical mean loss forecast periods described above. • For AFS debt securities and certain beneficial interests classified as HTM, we utilize the DCF methods to measure the ACL, which incorporate expected credit losses using the conceptual components described above. The ACL on AFS debt securities is subject to a limitation based on the fair value of the debt securities (fair value floor). The ACL for financial assets held at amortized cost and AFS debt securities will be reversible with immediate recognition of recovery in earnings if credit improves. The ACL for financial assets held at amortized cost is a valuation account that is deducted from, or added to, the amortized cost basis of the financial assets to present the net amount expected to be collected, which can include a negative allowance limited to the cumulative amounts previously charged off. For financial assets with an ACL estimated using DCF methods, changes in the ACL due to the passage of time are recorded in interest income. The ACL for AFS debt securities reflects the amount of unrealized loss related to expected credit losses, limited by the amount that fair value is less than the amortized cost basis, and cannot have an associated negative allowance. For certain financial assets, such as residential real estate loans guaranteed by the Government National Mortgage Association (GNMA), an agency of the federal government, U. S. Treasury and Agency mortgage backed debt securities, as well as certain sovereign debt securities, the Company has not recognized an ACL as our expectation of nonpayment of the amortized cost basis, based on historical losses, adjusted for current conditions and reasonable and supportable forecasts, is zero. A financial asset is collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. When a collateral-dependent financial asset is probable of foreclosure, we will measure the ACL based on the fair value of the collateral. If we intend to sell the underlying collateral, we will measure the ACL based on the collateral’s net realizable value (fair value of collateral, less estimated costs to sell). In most situations, based on our charge-off policies, we will immediately write-down the financial asset to the fair value of the collateral or net realizable value. For consumer loans, collateral-dependent financial assets may have collateral in the form of residential real estate, automobiles or other personal assets. For commercial loans, collateral-dependent financial assets may have collateral in the form of commercial real estate or other business assets. In general, we do not record an ACL for accrued interest receivables, which are included in other assets. Uncollectible accrued interest is reversed through interest income in a timely manner in line with our non-accrual and past due policies for loans and debt securities. For consumer credit card and certain consumer lines of credit, we include an ACL for accrued interest and fees since these loans are not placed on nonaccrual status and written off until the loan is 180 days past due. COMMERCIAL LOAN PORTFOLIO SEGMENT ACL METHODOLOGY Generally, commercial loans, which include net investments in lease financing, are assessed for estimated losses by grading each loan using various risk factors as identified through periodic reviews. Our estimation approach for the commercial portfolio reflects the estimated probability of default in accordance with the borrower’s financial strength and the severity of loss in the event of default, considering the quality of any underlying collateral. Probability of default and severity at the time of default are statistically derived through historical observations of default and losses after default within each credit risk rating. These estimates are adjusted as appropriate based on additional analysis of long-term average loss experience compared with previously forecasted losses, external loss data or other risks identified from current economic conditions and credit quality trends. The estimated probability of default and severity at the time of default are applied to loan equivalent exposures to estimate losses for unfunded credit commitments. CONSUMER LOAN PORTFOLIO SEGMENT ACL METHODOLOGY For consumer loans, we determine the allowance at the individual loan level. When developing historical loss experience, we pool loans, generally by product types with similar risk characteristics, such as residential real estate mortgages and credit cards. As appropriate and to achieve greater accuracy, we may further stratify selected portfolios by sub-product, origination channel, vintage, loss type, geographic location and other predictive characteristics. We use pooled loan data such as historic delinquency and default and loss severity in the development of our consumer loan models, in addition to home price trends, unemployment trends, and other economic variables that may influence the frequency and severity of losses in the consumer portfolio. AFS PORTFOLIO ACL METHODOLOGY We develop our ACL estimate for AFS debt securities by utilizing a security-level multi-scenario, probability-weighted discounted cash flow model based on a combination of past events, current conditions, as well as reasonable and supportable forecasts. The projected cash flows are discounted at the security’s effective interest rate, except for certain variable rate securities which are discounted using projections of future changes in interest rates, prepayable securities which are adjusted for estimated prepayments, and securities part of a fair value hedge which use hedge-adjusted assumptions. The ACL on an AFS debt security is limited to the difference between its amortized cost basis and fair value (fair value floor) and reversals of the allowance are permitted up to the amount previously recorded. HTM PORTFOLIO ACL METHODOLOGY For most HTM debt securities, the ACL is measured using an expected loss model, similar to the methodology used for loans. Unlike AFS debt securities, the ACL on an HTM debt security is not limited to the fair value floor. Certain beneficial interests categorized as HTM debt securities utilize a similar discounted cash flow model as described for AFS debt securities, without the limitation of the fair value floor. OTHER QUALITATIVE FACTORS The ACL includes amounts for qualitative factors which may not be adequately reflected in our loss models. These amounts represent management’s judgment of risks in the processes and assumptions used in establishing the ACL. Generally, these amounts are established at a granular level below our loan portfolio segments. We also consider economic environmental factors, modeling assumptions and performance, process risk, and other subjective factors, including industry trends and emerging risk assessments. OFF-BALANCE SHEET CREDIT EXPOSURES Our off-balance sheet credit exposures include unfunded loan commitments (generally in the form of revolving lines of credit), financial guarantees not accounted for as insurance contracts or derivatives, including standby letters of credit, and other similar instruments. For off-balance sheet credit exposures, we recognize an ACL associated with the unfunded amounts. We do not recognize an ACL for commitments that are unconditionally cancelable at our discretion. Additionally, we recognize an ACL for financial guarantees that create off-balance sheet credit exposure, such as loans sold with credit recourse and factoring guarantees. ACL for off-balance sheet credit exposures are reported as a liability in accrued expenses and other liabilities on our consolidated balance sheet. OTHER FINANCIAL ASSETS Other financial assets are evaluated for expected credit losses. These other financial assets include accounts receivable for fees, receivables from government-sponsored entities, such as Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC), and GNMA, and other accounts receivable from high-credit quality counterparties, such as central clearing counterparties. Many of these financial assets are generally not expected to have an ACL as there is a zero loss expectation (for example, government guarantee) or no historical credit losses. Some financial assets, such as loans to employees, maintain an ACL that is presented on a net basis with the related amortized cost amounts in other assets on our consolidated balance sheet. Given the nature of these financial assets, provision for credit losses is not recognized separately from the regular income or expense associated with these financial assets. Securities purchased under resale agreements are generally over-collateralized by securities or cash and are generally short-term in nature. We have elected the practical expedient for these financial assets given collateral maintenance provisions. These provisions require that we monitor the collateral value and customers are required to replenish collateral, if needed. Accordingly, we generally do not maintain an ACL for these financial assets. PURCHASED CREDIT DETERIORATED FINANCIAL ASSETS Financial assets acquired that are of poor credit quality and with more than an insignificant evidence of credit deterioration since their origination or issuance are PCD assets. PCD assets are recorded at their purchase price plus an ACL estimated at the time of acquisition. Under this approach, there is no provision for credit losses recognized at acquisition; rather, there is a gross-up of the purchase price of the financial asset for the estimate of expected credit losses and a corresponding ACL recorded. Changes in estimates of expected credit losses after acquisition are recognized as provision for credit losses (or reversal of provision for credit losses) in subsequent periods. In general, interest income recognition for PCD financial assets is consistent with interest income recognition for the similar non-PCD financial asset.
CARES Act [Policy Text Block]	Troubled Debt Restructuring Relief On March 25, 2020, the U.S. Senate approved the Coronavirus, Aid, Relief, and Economic Security Act (the CARES Act) providing optional, temporary relief from accounting for certain loan modifications as troubled debt restructurings (TDRs). Under the CARES Act, TDR relief is available to banks for loan modifications related to the adverse effects of Coronavirus Disease 2019 (COVID-19) (COVID-related modifications) granted to borrowers that are current as of December 31, 2019. TDR relief applies to COVID-related modifications made from March 1, 2020, until the earlier of December 31, 2020, or 60 days following the termination of the national emergency declared by the President of the United States. In first quarter 2020, we elected to apply the TDR relief provided by the CARES Act. On April 7, 2020, federal banking regulators issued the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised) (the Interagency Statement). The guidance in the Interagency Statement provides additional TDR relief as it clarifies that it is not necessary to consider the impact of the COVID-19 pandemic on the financial condition of a borrower in connection with a short-term (e.g., six months) COVID-related modification provided the borrower is current at the date the modification program is implemented. For COVID-related modifications in the form of payment deferrals, delinquency status will not advance and loans that were accruing at the time the relief is provided will generally not be placed on nonaccrual status during the deferral period. COVID-related modifications that do not meet the provisions of the CARES Act or the Interagency Statement will be assessed for TDR classification.
Private Share Repurchases	Share Repurchases During the first quarter of 2020 and 2019, we repurchased shares of our common stock under Rule 10b5-1 repurchase plans. On March 15, 2020, we, along with the other members of the Financial Services Forum, suspended our share repurchase activities for the remainder of the first quarter and for second quarter 2020. For more information about share repurchases, see Note 1 (Summary of Significant Accounting Policies) in our 2019 Form 10-K.
Accounting Standards Update 2018-17 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2020	ASU 2018-17 updates the guidance used by decision-makers of VIEs. Indirect interests held through related parties in common control arrangements will be considered on a proportional basis for determining whether fees paid to decision-makers and service providers are variable interests. This is consistent with how indirect interests held through related parties under common control are considered for determining whether a reporting entity must consolidate a VIE. The Update did not have a material impact on our consolidated financial statements.
Accounting Standards Update 2018-15 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2020	ASU 2018-15 clarifies the accounting for implementation costs related to a cloud computing arrangement that is a service contract and enhances disclosures around implementation costs for internal-use software and cloud computing arrangements. The guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). It also requires the expense related to the capitalized implementation costs be presented in the same line item in the statement of income as the fees associated with the hosting element of the arrangement and capitalized implementation costs be presented in the balance sheet in the same line item that a prepayment for the fees of the associated hosting arrangement are presented. The Update did not have a material impact on our consolidated financial statements.
Accounting Standards Update 2018-13 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2020	ASU 2018-13 clarifies, eliminates and adds certain fair value measurement disclosure requirements for assets and liabilities, which affects our disclosures in Note 16 (Fair Values of Assets and Liabilities). Although the ASU became effective on January 1, 2020, it permitted early adoption of individual requirements without causing others to be early adopted and, as such, we partially adopted the Update during third quarter 2018 and the remainder of the requirements in first quarter 2020. The Update did not have a material impact on our consolidated financial statements.
Accounting Standards Update 2017-04 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2020	ASU 2017-04 simplifies the goodwill impairment test by eliminating the requirement to assign the fair value of a reporting unit to all of the assets and liabilities of that unit (including any unrecognized intangible assets) as if the reporting unit had been acquired in a business combination. The Update requires that a goodwill impairment loss is recognized if the fair value of the reporting unit is less than the carrying amount, including goodwill. The goodwill impairment loss is limited to the amount of goodwill allocated to the reporting unit. The guidance did not change the qualitative assessment of goodwill. This guidance is applied on a prospective basis, and accordingly, the Update did not have a material impact on our consolidated financial statements.
Accounting Standards Update 2016-13 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2020	ASU 2016-13 changes the accounting for the measurement of credit losses on loans and debt securities. For loans and held-to-maturity (HTM) debt securities, the Update requires a current expected credit loss (CECL) measurement to estimate the allowance for credit losses (ACL) for the remaining contractual term, adjusted for prepayments, of the financial asset (including off-balance sheet credit exposures) using historical experience, current conditions, and reasonable and supportable forecasts. Also, the Update eliminates the existing guidance for purchased credit-impaired (PCI) loans, but requires an allowance for purchased financial assets with more than an insignificant deterioration of credit since origination. In addition, the Update modifies the other-than-temporary impairment (OTTI) model for available-for-sale (AFS) debt securities to require an allowance for credit impairment instead of a direct write-down, which allows for reversal of credit impairments in future periods based on improvements in credit. Upon adoption, we recognized an overall decrease in our ACL of approximately $1.3 billion (pre-tax) as a cumulative effect adjustment from a change in accounting policies, which increased our retained earnings and regulatory capital amounts and ratios. Loans previously classified as PCI were automatically transitioned to purchased credit-deteriorated (PCD) classification. We recognized an ACL for these new PCD loans and made a corresponding adjustment to the loan balance, with no impact to net income or transition adjustment to retained earnings. For more information on the impact of CECL by type of financial asset, see Table 1.1 below. Table 1.1: ASU 2016-13 Adoption Impact to Allowance for Credit Losses (1) Dec 31, 2019 ASU 2016-13 Adoption Impact Jan 1, 2020 (in billions) Balance Outstanding ACL Balance Coverage ACL Balance Coverage Total commercial (2) $ 515.7 6.2 1.2 % $ (2.9 ) 3.4 0.7 % Real estate 1-4 family mortgage (3) 323.4 0.9 0.3 — 0.9 0.3 Credit card (4) 41.0 2.3 5.5 0.7 2.9 7.1 Automobile (4) 47.9 0.5 1.0 0.3 0.7 1.5 Other revolving credit and installment (4) 34.3 0.6 1.6 0.6 1.2 3.5 Total consumer 446.5 4.2 0.9 1.5 5.7 1.3 Total loans 962.3 10.5 1.1 (1.3 ) 9.1 0.9 Available-for-sale and held-to-maturity debt securities and other assets (5) 420.0 0.1 NM — 0.1 NM Total $ 1,382.3 10.6 NM $ (1.3 ) 9.3 NM NM – Not meaningful (1) Amounts presented in this table may not equal the sum of its components due to rounding. (2) Decrease reflecting shorter contractual maturities given limitation to contractual terms. (3) Impact reflects an increase due to longer contractual terms, offset by expectation of recoveries in collateral value on mortgage loans previously written down significantly below current recovery value. (4) Increase due to longer contractual terms or indeterminate maturities. (5) Excludes other financial assets in the scope of CECL that do not have an allowance for credit losses based on the nature of the asset. The adoption of ASU 2016-13 did not result in a change to accounting policies, except as noted herein. Our accounting policy for the ACL was updated and is now inclusive of loans, debt securities and other financing receivables. Other than the ACL and the elimination of PCI loans, there were no changes to accounting policies for loans as described in the 2019 Form 10-K. For debt securities, other than the policies with respect to the ACL, all of the current accounting policies, including those that changed as a result of CECL adoption, are included below under Debt Securities.
Debt securities [Member]
Significant Accounting Policies [Line Items]
Marketable and Nonmarketable Securities, Policy [Policy Text Block]	Debt Securities Our investments in debt securities that are not held for trading purposes are classified as either debt securities available-for-sale (AFS) or held-to-maturity (HTM). Investments in debt securities for which the Company does not have the positive intent and ability to hold to maturity are classified as AFS. AFS debt securities are measured at fair value, with unrealized gains and losses reported in cumulative other comprehensive income (OCI), net of the allowance for credit losses and applicable income taxes. Investments in debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM. HTM debt securities are measured at amortized cost, net of allowance for credit losses.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
ASU 2016-13 Adoption to Allowance for Credit Losses	For more information on the impact of CECL by type of financial asset, see Table 1.1 below. Table 1.1: ASU 2016-13 Adoption Impact to Allowance for Credit Losses (1) Dec 31, 2019 ASU 2016-13 Adoption Impact Jan 1, 2020 (in billions) Balance Outstanding ACL Balance Coverage ACL Balance Coverage Total commercial (2) $ 515.7 6.2 1.2 % $ (2.9 ) 3.4 0.7 % Real estate 1-4 family mortgage (3) 323.4 0.9 0.3 — 0.9 0.3 Credit card (4) 41.0 2.3 5.5 0.7 2.9 7.1 Automobile (4) 47.9 0.5 1.0 0.3 0.7 1.5 Other revolving credit and installment (4) 34.3 0.6 1.6 0.6 1.2 3.5 Total consumer 446.5 4.2 0.9 1.5 5.7 1.3 Total loans 962.3 10.5 1.1 (1.3 ) 9.1 0.9 Available-for-sale and held-to-maturity debt securities and other assets (5) 420.0 0.1 NM — 0.1 NM Total $ 1,382.3 10.6 NM $ (1.3 ) 9.3 NM NM – Not meaningful (1) Amounts presented in this table may not equal the sum of its components due to rounding. (2) Decrease reflecting shorter contractual maturities given limitation to contractual terms. (3) Impact reflects an increase due to longer contractual terms, offset by expectation of recoveries in collateral value on mortgage loans previously written down significantly below current recovery value. (4) Increase due to longer contractual terms or indeterminate maturities. (5) Excludes other financial assets in the scope of CECL that do not have an allowance for credit losses based on the nature of the asset.
Key Economic Variables	See Table 1.2 for key economic variables used for our loan portfolios. Table 1.2: Key Economic Variables Loan Portfolio Key economic variables Total commercial • Gross domestic product • Commercial real estate asset prices, where applicable • Unemployment rate • Corporate investment-grade bond spreads Real estate 1-4 family mortgage • Home price index • Unemployment rate Other consumer (including credit card, automobile, and other revolving credit and installment) • Unemployment rate
Supplemental Cash Flow Information	Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.3 . Table 1.3: Supplemental Cash Flow Information Quarter ended March 31, (in millions) 2020 2019 Trading debt securities retained from securitization of mortgage loans held for sale (MLHFS) $ 7,538 8,875 Transfers from loans to MLHFS 858 1,292 Transfers from available-for-sale debt securities to held-to-maturity debt securities — 2,407 Operating lease ROU assets acquired with operating lease liabilities (1) 197 5,127 (1) Includes amounts attributable to new leases and changes from modified leases. First quarter 2019 also includes $4.9 billion from adoption of ASU 2016-02 – Leases (Topic 842).

Cash, Loan and Dividend Restr_2

Cash, Loan and Dividend Restrictions (Tables)	3 Months Ended
	Mar. 31, 2020
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) Mar 31, Dec 31, Average required reserve balance for FRB (1) $ 11,932 11,374 Reserve balance for non-U.S. central banks 1,133 460 Segregated for benefit of brokerage customers under federal and other brokerage regulations 970 733 Related to consolidated variable interest entities (VIEs) that can only be used to settle liabilities of VIEs 19 300 (1) Represents average for first quarter 2020 and for the year ended December 31, 2019 .

Trading Activities (Tables)

Trading Activities (Tables)	3 Months Ended
	Mar. 31, 2020
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 Mar 31, Dec 31, (in millions) 2020 2019 Trading assets: Debt securities $ 80,425 79,733 Equity securities 13,573 27,440 Loans held for sale 1,673 972 Gross trading derivative assets 72,527 34,825 Netting (1) (49,821 ) (21,463 ) Total trading derivative assets 22,706 13,362 Total trading assets 118,377 121,507 Trading liabilities: Short sale 17,603 17,430 Gross trading derivative liabilities 67,891 33,861 Netting (1) (53,598 ) (26,074 ) Total trading derivative liabilities 14,293 7,787 Total trading liabilities $ 31,896 25,217 (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 March 31, (in millions) 2020 2019 Interest income: Debt securities $ 766 793 Equity securities 137 115 Loans held for sale 12 23 Total interest income 915 931 Less: Interest expense 141 136 Net interest income 774 795 Net gains (losses) from trading activities (1): Debt securities 2,355 688 Equity securities (4,401 ) 2,067 Loans held for sale (12 ) 14 Derivatives (2) 2,122 (2,412 ) Total net gains from trading activities 64 357 Total trading-related net interest and noninterest income $ 838 1,152 (1) Represents realized gains (losses) from our trading activities 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)	3 Months Ended
	Mar. 31, 2020
AFS and HTM Debt Securities [Abstract]
Available-for-Sale and Held-to-Maturity Debt Securities Outstanding	Table 5.1 provides the amortized cost, net of the allowance for credit losses, 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, net of allowance for credit losses. The net unrealized gains (losses) for available-for-sale debt securities are reported as a component of cumulative OCI, net of the allowance for credit losses and applicable income taxes. Information on debt securities held for trading is included in Note 4 (Trading Activities). Outstanding balances exclude accrued interest receivable on available-for-sale and held-to-maturity debt securities which are included in other assets. During the quarter ended March 31, 2020, we reversed accrued interest receivable on our available-for-sale and held-to-maturity debt securities by reversing interest income of $6 million . See Note 9 (Other Assets) for additional information on accrued interest receivable. Table 5.1: Available-for-Sale and Held-to-Maturity Debt Securities Outstanding (in millions) Amortized cost, net (1) Gross unrealized gains Gross unrealized losses Fair value March 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 10,952 88 (4 ) 11,036 Securities of U.S. states and political subdivisions (2) 38,686 206 (748 ) 38,144 Mortgage-backed securities: Federal agencies 154,390 5,839 (15 ) 160,214 Residential 820 — (44 ) 776 Commercial 3,897 10 (253 ) 3,654 Total mortgage-backed securities 159,107 5,849 (312 ) 164,644 Corporate debt securities 6,092 38 (275 ) 5,855 Collateralized loan and other debt obligations 26,873 63 (1,768 ) 25,168 Other (3) 6,477 19 (114 ) 6,382 Total available-for-sale debt securities 248,187 6,263 (3,221 ) 251,229 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 48,569 2,146 (24 ) 50,691 Securities of U.S. states and political subdivisions 14,304 344 (37 ) 14,611 Federal agency and other mortgage-backed securities (4) 107,013 5,268 (43 ) 112,238 Other debt securities 23 — (1 ) 22 Total held-to-maturity debt securities 169,909 7,758 (105 ) 177,562 Total (5) $ 418,096 14,021 (3,326 ) 428,791 December 31, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 14,948 13 (1 ) 14,960 Securities of U.S. states and political subdivisions (2) 39,381 992 (36 ) 40,337 Mortgage-backed securities: Federal agencies 160,318 2,299 (164 ) 162,453 Residential 814 14 (1 ) 827 Commercial 3,899 41 (6 ) 3,934 Total mortgage-backed securities 165,031 2,354 (171 ) 167,214 Corporate debt securities 6,343 252 (32 ) 6,563 Collateralized loan and other debt obligations 29,693 125 (123 ) 29,695 Other (3) 4,664 50 (24 ) 4,690 Total available-for-sale debt securities 260,060 3,786 (387 ) 263,459 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 45,541 617 (19 ) 46,139 Securities of U.S. states and political subdivisions 13,486 286 (13 ) 13,759 Federal agency and other mortgage-backed securities (4) 94,869 2,093 (37 ) 96,925 Other debt securities 37 — — 37 Total held-to-maturity debt securities 153,933 2,996 (69 ) 156,860 Total (5) $ 413,993 6,782 (456 ) 420,319 (1) Represents amortized cost of the securities, net of the allowance for credit losses of $161 million related to available-for-sale debt securities and $11 million related to held-to-maturity debt securities at March 31, 2020 . Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses related to available-for-sale and held-to-maturity debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Includes investments in tax-exempt preferred debt securities issued by investment funds or trusts that predominantly invest in tax-exempt municipal securities. The amortized cost net of allowance for credit losses and fair value of these types of securities was $5.8 billion at both March 31, 2020 , and December 31, 2019 . (3) Primarily includes asset-backed securities collateralized by student loans. (4) Predominantly consists of federal agency mortgage-backed securities at both March 31, 2020 and December 31, 2019 . (5) We held available-for-sale and held-to-maturity debt securities from Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC) that each exceeded 10% of stockholders’ equity, with an amortized cost of $102.4 billion and $88.4 billion and a fair value of $107.0 billion and $92.2 billion at March 31, 2020 and an amortized cost of $98.5 billion and $84.1 billion and a fair value of $100.3 billion and $85.5 billion at December 31, 2019 , respectively.
Held-to-Maturity Debt Securities Purchases and Transfers [Table Text Block]	Table 5.2 details the breakout of purchases of and transfers to held-to-maturity debt securities by major category of security. Table 5.2: Held-to-Maturity Debt Securities Purchases and Transfers Quarter ended March 31, (in millions) 2020 2019 Purchases of held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies $ 3,016 — Securities of U.S. states and political subdivisions 866 — Federal agency and other mortgage-backed securities 15,925 16 Total purchases of held-to-maturity debt securities 19,807 16 Transfers from available-for-sale debt securities to held-to-maturity debt securities: Federal agency and other mortgage-backed securities — 2,407 Total transfers from available-for-sale debt securities to held-to-maturity debt securities $ — 2,407
Income Statement Impacts for Available-for-Sale and Held-to-Maturity Debt Securities [Table Text Block]	Table 5.3 shows the composition of interest income, provision for credit losses, and gross realized gains and losses from sales and impairment write-downs included in earnings related to available-for-sale and held-to-maturity debt securities (pre-tax) . Table 5.3: Income Statement Impacts for Available-for-Sale and Held-to-Maturity Debt Securities Quarter ended March 31, (in millions) 2020 2019 Interest income: Available-for-sale $ 1,726 2,201 Held-to-maturity 980 947 Total interest income (1) 2,706 3,148 Provision for credit losses (2): Available-for-sale 168 — Held-to-maturity 4 — Total provision for credit losses 172 — Realized gains and losses (3): Gross realized gains 256 173 Gross realized losses (4 ) (3 ) Impairment write-downs included in earnings: Credit-related (4) — (16 ) Intent-to-sell (15 ) (29 ) Total impairment write-downs included in earnings (15 ) (45 ) Net realized gains $ 237 125 (1) Total interest income from debt securities excludes interest income from trading debt securities, which is disclosed in Note 4 (Trading Activities). (2) Prior to our adoption of CECL on January 1, 2020, the provision for credit losses from debt securities was not applicable and is therefore presented as $0 for the prior period. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Realized gains and losses relate to available-for-sale debt securities. There were no realized gains or losses from held-to-maturity debt securities in all periods presented. (4) For the quarter ended March 31, 2020 , credit-related impairment recognized in earnings is classified as provision for credit losses due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies).
Investment Grade Debt Securities	Table 5.4 shows the percentage of fair value of available-for-sale debt securities and amortized cost of held-to-maturity debt securities determined by those rated investment grade, inclusive of those based on internal credit grades. Table 5.4: Investment Grade Debt Securities Available-for-Sale Held-to-Maturity ($ in millions) Fair value % investment grade Amortized cost % investment grade March 31, 2020 Total portfolio $ 251,229 99 % 169,920 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (1) $ 171,250 100 % 154,734 100 % Securities of U.S. states and political subdivisions 38,144 99 14,313 100 Collateralized loan obligations 24,582 100 N/A N/A All other debt securities (2) 17,253 82 873 7 December 31, 2019 Total portfolio $ 263,459 99 % 153,933 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (1) $ 177,413 100 % 139,619 100 % Securities of U.S. states and political subdivisions 40,337 99 13,486 100 Collateralized loan obligations 29,055 100 N/A N/A All other debt securities (2) 16,654 82 828 4 (1) Includes federal agency mortgage-backed securities. (2) Includes non-agency mortgage-backed, corporate, and all other debt securities.
Purchased Debt Securities with Credit Deterioration [Table Text Block]	Table 5.5 presents detail of available-for-sale debt securities purchased with credit deterioration during the period. There were no held-to-maturity debt securities purchased with credit deterioration during the quarter ended March 31, 2020 . The amounts presented are as of the date of the PCD assets were purchased. Table 5.5: Debt Securities Purchased with Credit Deterioration (in millions) Quarter ended March 31, 2020 Available-for-sale debt securities purchased with credit deterioration (PCD): Par value $ 164 Allowance for credit losses at acquisition (11 ) Discount (or premiums) attributable to other factors 3 Purchase price of available-for-sale debt securities purchased with credit deterioration $ 156
Gross Unrealized Losses and Fair Value - Available-for-Sale Debt Securities	Table 5.6 shows the gross unrealized losses and fair value of available-for-sale 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 recorded credit impairment 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 (1) for the current period presented, amortized cost basis net of allowance for credit losses, or the (2) for the prior period presented, amortized cost basis. Table 5.6: Gross Unrealized Losses and Fair Value – Available-for-Sale Debt Securities 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 March 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (4 ) 615 — — (4 ) 615 Securities of U.S. states and political subdivisions (678 ) 22,740 (70 ) 1,490 (748 ) 24,230 Mortgage-backed securities: Federal agencies (3 ) 594 (12 ) 737 (15 ) 1,331 Residential (44 ) 591 — — (44 ) 591 Commercial (228 ) 3,275 (25 ) 243 (253 ) 3,518 Total mortgage-backed securities (275 ) 4,460 (37 ) 980 (312 ) 5,440 Corporate debt securities (263 ) 3,337 (12 ) 129 (275 ) 3,466 Collateralized loan and other debt obligations (1,226 ) 18,303 (542 ) 6,442 (1,768 ) 24,745 Other (91 ) 4,085 (23 ) 618 (114 ) 4,703 Total available-for-sale debt securities $ (2,537 ) 53,540 (684 ) 9,659 (3,221 ) 63,199 December 31, 2019 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ — — (1 ) 2,423 (1 ) 2,423 Securities of U.S. states and political subdivisions (10 ) 2,776 (26 ) 2,418 (36 ) 5,194 Mortgage-backed securities: Federal agencies (50 ) 16,807 (114 ) 10,641 (164 ) 27,448 Residential (1 ) 149 — — (1 ) 149 Commercial (3 ) 998 (3 ) 244 (6 ) 1,242 Total mortgage-backed securities (54 ) 17,954 (117 ) 10,885 (171 ) 28,839 Corporate debt securities (9 ) 303 (23 ) 216 (32 ) 519 Collateralized loan and other debt obligations (13 ) 5,070 (110 ) 16,789 (123 ) 21,859 Other (12 ) 1,587 (12 ) 492 (24 ) 2,079 Total available-for-sale debt securities $ (98 ) 27,690 (289 ) 33,223 (387 ) 60,913
Allowance for Credit Losses - Debt Securities [Table Text Block]	Table 5.7 presents the allowance for credit losses on available-for-sale and held-to-maturity debt securities. Table 5.7: Allowance for Credit Losses for Debt Securities Quarter ended March 31, 2020 (in millions) Available-for-Sale Held-to-Maturity Balance, beginning of period (1) $ — — Cumulative effect from change in accounting policies (2) 24 7 Balance, beginning of period, adjusted 24 7 Provision for credit losses 168 4 Securities purchased with credit deterioration 11 — Reduction due to intent to sell (11 ) — Charge-offs (32 ) — Interest income (3) 1 — Balance, end of period (4) $ 161 11 (1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses related to available-for-sale and held-to-maturity debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Represents the impact of adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Certain debt securities with an allowance for credit losses calculated by discounting expected cash flows using the securities’ effective interest rate over its remaining life, recognize changes in the allowance for credit losses attributable to the passage of time as interest income. (4) Substantially all of allowance for credit losses for debt securities relates to corporate debt securities as of March 31, 2020 .
Contractual Maturities - Available-for-Sale Debt Securities	Table 5.8 shows the remaining contractual maturities, amortized cost net of allowance for credit losses, fair value and weighted-average effective yields of available-for-sale debt securities. The remaining contractual principal maturities for MBS do not consider prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature. Table 5.8: Contractual Maturities – Available-for-Sale Debt Securities By remaining contractual maturity ($ in millions) Total Within one year After one year through five years After five years through ten years After ten years March 31, 2020 Available-for-sale debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 10,952 8,023 28 45 2,856 Fair value 11,036 8,029 29 49 2,929 Weighted average yield 2.10 % 2.32 1.97 1.84 1.49 Securities of U.S. states and political subdivisions Amortized cost, net 38,686 3,940 4,196 4,034 26,516 Fair value 38,144 3,963 4,244 4,039 25,898 Weighted average yield 3.15 4.58 3.20 2.78 2.98 Mortgage-backed securities: Federal agencies Amortized cost, net 154,390 2 123 1,944 152,321 Fair value 160,214 2 128 2,005 158,079 Weighted average yield 3.19 1.93 3.06 2.44 3.20 Residential Amortized cost, net 820 — — — 820 Fair value 776 — — — 776 Weighted average yield 3.19 — — — 3.19 Commercial Amortized cost, net 3,897 — 32 194 3,671 Fair value 3,654 — 31 187 3,436 Weighted average yield 2.62 — 2.49 2.71 2.62 Total mortgage-backed securities Amortized cost, net 159,107 2 155 2,138 156,812 Fair value 164,644 2 159 2,192 162,291 Weighted average yield 3.18 1.93 2.94 2.46 3.19 Corporate debt securities Amortized cost, net 6,092 373 2,048 2,847 824 Fair value 5,855 355 1,973 2,755 772 Weighted average yield 4.97 4.12 5.18 5.03 4.67 Collateralized loan and other debt obligations Amortized cost, net 26,873 — — 12,014 14,859 Fair value 25,168 — — 11,362 13,806 Weighted average yield 3.21 — — 3.29 3.15 Other Amortized cost, net 6,477 2,021 704 1,296 2,456 Fair value 6,382 2,021 685 1,287 2,389 Weighted average yield 1.51 (0.22 ) 2.95 1.41 2.57 Total available-for-sale debt securities Amortized cost, net $ 248,187 14,359 7,131 22,374 204,323 Fair value 251,229 14,370 7,090 21,684 208,085 Weighted average yield 3.13 % 2.63 3.75 3.24 3.14 (1) Weighted-average yields displayed by maturity bucket are weighted based on amortized cost without effect for any related hedging derivatives and are shown pre-tax.
Contractual Maturities - Held-to-Maturity Debt Securities	Table 5.9 shows the remaining contractual maturities, amortized cost net of allowance for credit losses, fair value, and weighted-average effective yields of held-to-maturity debt securities. Table 5.9: Contractual Maturities – Held-to-Maturity Debt Securities By remaining contractual maturity ($ in millions) Total Within one year After one year through five years After five years through ten years After ten years March 31, 2020 Held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 48,569 8,336 36,454 — 3,779 Fair value 50,691 8,494 38,170 — 4,027 Weighted average yield 2.14 % 2.24 2.18 — 1.56 Securities of U.S. states and political subdivisions Amortized cost, net 14,304 11 713 1,724 11,856 Fair value 14,611 11 731 1,794 12,075 Weighted average yield 2.71 1.95 2.22 2.86 2.72 Federal agency and other mortgage-backed securities Amortized cost, net 107,013 — 15 104 106,894 Fair value 112,238 — 13 111 112,114 Weighted average yield 2.96 — 2.99 1.37 2.96 Other debt securities Amortized cost, net 23 — — 23 — Fair value 22 — — 22 — Weighted average yield 3.01 — — 3.01 — Total held-to-maturity debt securities Amortized cost, net $ 169,909 8,347 37,182 1,851 122,529 Fair value 177,562 8,505 38,914 1,927 128,216 Weighted average yield 2.70 % 2.24 2.18 2.78 2.89 (1) Weighted-average yields displayed by maturity bucket are weighted based on amortized cost and are shown pre-tax.

Loans and Related Allowance f_2

Loans and Related Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
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 March 31, 2020 , and December 31, 2019 . Outstanding balances exclude accrued interest receivable on loans which are included in other assets. During the quarter ended March 31, 2020 , we reversed accrued interest receivable by reversing interest income of $9 million for our commercial portfolio segment and $63 million for our consumer portfolio segment. See Note 9 (Other Assets) for additional information on accrued interest receivable. Table 6.1: Loans Outstanding (in millions) Mar 31, Dec 31, Commercial: Commercial and industrial $ 405,020 354,125 Real estate mortgage 122,767 121,824 Real estate construction 20,812 19,939 Lease financing 19,136 19,831 Total commercial 567,735 515,719 Consumer: Real estate 1-4 family first mortgage 292,920 293,847 Real estate 1-4 family junior lien mortgage 28,527 29,509 Credit card 38,582 41,013 Automobile 48,568 47,873 Other revolving credit and installment 33,511 34,304 Total consumer 442,108 446,546 Total loans $ 1,009,843 962,265 Our non-U.S. loans are reported by respective class of financing receivable in the table above. Substantially all of our non-U.S. loan portfolio is commercial loans. Table 6.2 presents total non-U.S. commercial loans outstanding by class of financing receivable. Table 6.2: Non-U.S. Commercial Loans Outstanding (in millions) Mar 31, Dec 31, Non-U.S. Commercial Loans Commercial and industrial $ 78,753 70,494 Real estate mortgage 6,309 7,004 Real estate construction 1,478 1,434 Lease financing 1,120 1,220 Total non-U.S. commercial loans $ 87,660 80,152
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. The table excludes 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 ACL. In first quarter 2020, we sold $709 million of 1-4 family first mortgage loans for a gain of $463 million , which is included in other noninterest income on our consolidated income statement. These whole loans were reclassified to MLHFS in 2019. Table 6.3: Loan Purchases, Sales, and Transfers 2020 2019 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Purchases $ 341 1 342 329 3 332 Sales (813 ) (26 ) (839 ) (421 ) (179 ) (600 ) Transfers (to) from MLHFS/LHFS 77 2 79 (3 ) — (3 )
Unfunded Credit Commitments	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) Mar 31, Dec 31, Commercial: Commercial and industrial $ 314,135 346,991 Real estate mortgage 9,360 8,206 Real estate construction 17,236 17,729 Total commercial 340,731 372,926 Consumer: Real estate 1-4 family first mortgage 42,691 34,391 Real estate 1-4 family junior lien mortgage 36,301 36,916 Credit card 118,339 114,933 Other revolving credit and installment 25,187 25,898 Total consumer 222,518 212,138 Total unfunded credit commitments $ 563,249 585,064
Allowance for Credit Losses for Loans	Table 6.5 presents the allowance for credit losses for loans, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. On January 1, 2020, we adopted CECL. Additional information on our adoption of CECL is included in Note 1 (Summary of Significant Accounting Policies). In first quarter 2020, after the adoption of CECL, we added a net $2.9 billion to our ACL for loans predominantly driven by the expected impacts from the COVID-19 pandemic. These expected impacts were most significantly affected by anticipated changes to economic variables, as well as higher expected losses from certain industries in our commercial portfolio segment that we expect to be directly and most adversely affected by the COVID-19 pandemic. In addition, the increase included expected impacts on oil and gas loans due to lower oil prices and deteriorating credit trends. Table 6.5: Allowance for Credit Losses for Loans Quarter ended March 31, (in millions) 2020 2019 Balance, beginning of period 10,456 10,707 Cumulative effect from change in accounting policies (1) (1,337 ) — Allowance for purchased credit-deteriorated (PCD) loans (2) 8 — Balance, beginning of period, adjusted 9,127 10,707 Provision for credit losses 3,833 845 Interest income on certain loans (3) (38 ) (39 ) Loan charge-offs: Commercial: Commercial and industrial (377 ) (176 ) Real estate mortgage (3 ) (12 ) Real estate construction — (1 ) Lease financing (13 ) (11 ) Total commercial (393 ) (200 ) Consumer: Real estate 1-4 family first mortgage (23 ) (43 ) Real estate 1-4 family junior lien mortgage (30 ) (34 ) Credit card (471 ) (437 ) Automobile (156 ) (187 ) Other revolving credit and installment (165 ) (162 ) Total consumer (845 ) (863 ) Total loan charge-offs (1,238 ) (1,063 ) Loan recoveries: Commercial: Commercial and industrial 44 43 Real estate mortgage 5 6 Real estate construction 16 3 Lease financing 4 3 Total commercial 69 55 Consumer: Real estate 1-4 family first mortgage 26 55 Real estate 1-4 family junior lien mortgage 35 43 Credit card 94 85 Automobile 74 96 Other revolving credit and installment 31 34 Total consumer 260 313 Total loan recoveries 329 368 Net loan charge-offs (909 ) (695 ) Other 9 3 Balance, end of period 12,022 10,821 Components: Allowance for loan losses 11,263 9,900 Allowance for unfunded credit commitments 759 921 Allowance for credit losses for loans 12,022 10,821 Net loan charge-offs (annualized) as a percentage of average total loans 0.38 0.30 Allowance for loan losses as a percentage of total loans 1.12 1.04 Allowance for credit losses for loans as a percentage of total loans 1.19 1.14 (1) Represents the overall decrease in our allowance for credit losses for loans as a result of our adoption of CECL on January 1, 2020. (2) Represents the allowance estimated for PCI loans that automatically became PCD loans with the adoption of CECL. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Loans with an allowance measured 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.
Allowance for Credit Losses for Loans Activity by Portfolio Segment	Table 6.6 summarizes the activity in the allowance for credit losses for loans by our commercial and consumer portfolio segments. Table 6.6: Allowance for Credit Losses for Loans Activity by Portfolio Segment 2020 2019 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Balance, beginning of period $ 6,245 4,211 10,456 6,417 4,290 10,707 Cumulative effect from change in accounting policies (1) (2,861 ) 1,524 (1,337 ) — — — Allowance for purchased credit-deteriorated (PCD) loans (2) — 8 8 — — — Balance, beginning of period, adjusted 3,384 5,743 9,127 6,417 4,290 10,707 Provision for credit losses 2,240 1,593 3,833 164 681 845 Interest income on certain loans (3) (14 ) (24 ) (38 ) (11 ) (28 ) (39 ) Loan charge-offs (393 ) (845 ) (1,238 ) (200 ) (863 ) (1,063 ) Loan recoveries 69 260 329 55 313 368 Net loan charge-offs (324 ) (585 ) (909 ) (145 ) (550 ) (695 ) Other (7 ) 16 9 3 — 3 Balance, end of period $ 5,279 $ 6,743 $ 12,022 $ 6,428 $ 4,393 $ 10,821 (1) Represents the overall decrease in our allowance for credit losses for loans as a result of our adoption of CECL on January 1, 2020. (2) Represents the allowance estimated for PCI loans that automatically became PCD loans with the adoption of CECL. For more information, see Note 1 (Summary of Significant Accounting Policies). (3) Loans with an allowance measured 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.
Allowance for Credit Losses for Loans by Impairment Methodology	Table 6.7 disaggregates our allowance for credit losses for loans and recorded investment in loans by impairment methodology. This is no longer relevant after December 31, 2019, given our adoption of CECL on January 1, 2020, which has a single impairment methodology. Table 6.7: Allowance for Credit Losses for Loans by Impairment Methodology Allowance for credit losses for loans Recorded investment in loans (in millions) Commercial Consumer Total Commercial Consumer Total December 31, 2019 Collectively evaluated (1) $ 5,778 3,364 9,142 512,586 436,081 948,667 Individually evaluated (2) 467 847 1,314 3,133 9,897 13,030 PCI (3) — — — — 568 568 Total $ 6,245 4,211 10,456 515,719 446,546 962,265 (1) Represents non-impaired loans evaluated collectively for impairment. (2) Represents impaired loans evaluated individually for impairment. (3) Represents the allowance for loan losses and related loan carrying value for PCI loans.
Commercial Loans Categories by Risk Categories and Vintage	Table 6.8 provides a breakdown of outstanding commercial loans by risk category. In connection with our adoption of CECL, credit quality information is provided with the year of origination for term loans. Revolving loans may convert to term loans as a result of a contractual provision in the original loan agreement or if modified in a TDR. Table 6.8: Commercial Loans Categories by Risk Categories and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans Total (in millions) 2020 2019 2018 2017 2016 Prior March 31, 2020 Commercial and industrial Pass $ 32,531 53,904 23,788 11,603 7,815 5,061 250,893 209 385,804 Criticized 885 1,053 948 721 433 458 14,718 — 19,216 Total commercial and industrial 33,416 54,957 24,736 12,324 8,248 5,519 265,611 209 405,020 Real estate mortgage Pass 7,336 31,320 23,268 14,577 15,376 21,087 5,563 128 118,655 Criticized 60 452 515 741 546 1,525 273 — 4,112 Total real estate mortgage 7,396 31,772 23,783 15,318 15,922 22,612 5,836 128 122,767 Real estate construction Pass 1,293 7,226 5,528 3,024 1,290 472 1,750 7 20,590 Criticized 2 98 93 6 8 14 1 — 222 Total real estate construction 1,295 7,324 5,621 3,030 1,298 486 1,751 7 20,812 Lease financing Pass 1,439 5,566 3,769 2,447 1,844 2,739 — — 17,804 Criticized 83 422 365 196 139 127 — — 1,332 Total lease financing 1,522 5,988 4,134 2,643 1,983 2,866 — — 19,136 Total commercial loans $ 43,629 100,041 58,274 33,315 27,451 31,483 273,198 344 567,735 Commercial Real Real Lease Total December 31, 2019 By risk category: Pass $ 338,740 118,054 19,752 18,655 495,201 Criticized 15,385 3,770 187 1,176 20,518 Total commercial loans $ 354,125 121,824 19,939 19,831 515,719 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies).
Commercial Loan Categories by Delinquency Status	Table 6.9 provides past due information for commercial loans, which we monitor as part of our credit risk management practices; however, delinquency is not a primary credit quality indicator for commercial loans. Table 6.9: Commercial Loan Categories by Delinquency Status (in millions) Commercial and industrial Real estate mortgage Real estate construction Lease financing Total March 31, 2020 By delinquency status: Current-29 days past due (DPD) and still accruing $ 402,706 121,621 20,696 18,793 563,816 30-89 DPD and still accruing 511 174 94 212 991 90+ DPD and still accruing 24 28 1 — 53 Nonaccrual loans 1,779 944 21 131 2,875 Total commercial loans $ 405,020 122,767 20,812 19,136 567,735 December 31, 2019 By delinquency status: Current-29 DPD and still accruing $ 352,110 120,967 19,845 19,484 512,406 30-89 DPD and still accruing 423 253 53 252 981 90+ DPD and still accruing 47 31 — — 78 Nonaccrual loans 1,545 573 41 95 2,254 Total commercial loans $ 354,125 121,824 19,939 19,831 515,719
Consumer Loan Categories by Delinquency Status and Vintage	Table 6.10 provides the outstanding balances of our consumer portfolio by delinquency status. In connection with our adoption of CECL, credit quality information is provided with the year of origination for term loans. Revolving loans may convert to term loans as a result of a contractual provision in the original loan agreement or if modified in a TDR. The revolving loans converted to term loans in the credit card loan category represent credit card loans with modified terms that require payment over a specific term. Table 6.10: Consumer Loan Categories by Delinquency Status and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total March 31, 2020 Real estate 1-4 family first mortgage By delinquency status: Current-29 DPD $ 14,238 59,044 25,047 36,185 41,121 93,490 7,981 2,020 279,126 30-59 DPD 14 65 30 39 64 1,184 38 57 1,491 60-89 DPD 2 3 6 5 8 370 20 27 441 90-119 DPD — — 3 — 6 190 8 17 224 120-179 DPD — — 1 4 7 142 11 22 187 180+ DPD — — 4 7 5 466 5 125 612 Government insured/guaranteed loans (2) 2 32 150 271 498 9,726 — — 10,679 Loans held at fair value — — — — — 160 — — 160 Total real estate 1-4 family first mortgage 14,256 59,144 25,241 36,511 41,709 105,728 8,063 2,268 292,920 Real estate 1-4 family junior mortgage By delinquency status: Current-29 DPD 8 44 51 48 39 1,491 19,178 7,058 27,917 30-59 DPD — — — — — 34 76 119 229 60-89 DPD — — — 1 1 15 28 58 103 90-119 DPD — — — — — 8 19 32 59 120-179 DPD — — — — — 6 17 44 67 180+ DPD — — — — 1 16 10 125 152 Total real estate 1-4 family junior mortgage 8 44 51 49 41 1,570 19,328 7,436 28,527 Credit cards By delinquency status: Current-29 DPD — — — — — — 37,320 259 37,579 30-59 DPD — — — — — — 260 18 278 60-89 DPD — — — — — — 184 13 197 90-119 DPD — — — — — — 167 14 181 120-179 DPD — — — — — — 335 10 345 180+ DPD — — — — — — 2 — 2 Total credit cards — — — — — — 38,268 314 38,582 Automobile By delinquency status: Current-29 DPD 6,334 19,682 9,085 5,509 4,857 2,145 — — 47,612 30-59 DPD 8 158 134 111 168 104 — — 683 60-89 DPD — 49 40 32 53 34 — — 208 90-119 DPD — 18 13 9 15 10 — — 65 120-179 DPD — — — — — — — — — 180+ DPD — — — — — — — — — Total automobile 6,342 19,907 9,272 5,661 5,093 2,293 — — 48,568 Other revolving credit and installment By delinquency status: Current-29 DPD 948 3,580 2,207 1,468 1,298 5,751 17,766 202 33,220 30-59 DPD 1 9 10 12 9 66 19 7 133 60-89 DPD — 5 6 5 5 32 9 4 66 90-119 DPD — 4 6 6 6 31 9 3 65 120-179 DPD — — — — — — 15 2 17 180+ DPD — — — — — 1 2 7 10 Total other revolving credit and installment 949 3,598 2,229 1,491 1,318 5,881 17,820 225 33,511 Total consumer loans $ 21,555 82,693 36,793 43,712 48,161 115,472 83,479 10,243 442,108 (continued on following page) (continued from previous page) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Credit card Automobile Other revolving credit and installment Total December 31, 2019 By delinquency status: Current-29 DPD $ 279,722 28,870 39,935 46,650 33,981 429,158 30-59 DPD 1,136 216 311 882 140 2,685 60-89 DPD 404 115 221 263 81 1,084 90-119 DPD 197 69 202 77 74 619 120-179 DPD 160 71 343 1 18 593 180+ DPD 503 155 1 — 10 669 Government insured/guaranteed loans (2) 10,999 — — — — 10,999 Loans held at fair value 171 — — — — 171 Total consumer loans (excluding PCI) 293,292 29,496 41,013 47,873 34,304 445,978 Total consumer PCI loans (carrying value) (3) 555 13 — — — 568 Total consumer loans $ 293,847 29,509 41,013 47,873 34,304 446,546 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) 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 $6.1 billion at March 31, 2020 , compared with $6.4 billion at December 31, 2019 . (3) 26% of the adjusted unpaid principal balance for consumer PCI loans was 30+ DPD at December 31, 2019 .
Consumer Loan Categories by FICO and Vintage	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. Loans not requiring a FICO score totaled $8.9 billion and $9.1 billion at March 31, 2020 and December 31, 2019 , respectively. Substantially all loans not requiring a FICO score are securities-based loans originated through retail brokerage. Table 6.11: Consumer Loan Categories by FICO and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total March 31, 2020 By FICO: Real estate 1-4 family first mortgage < 600 $ 2 27 43 60 92 2,643 209 229 3,305 600-639 10 105 67 68 128 1,663 148 115 2,304 640-679 80 481 297 311 368 3,075 298 171 5,081 680-719 458 1,870 905 1,181 1,301 5,847 665 264 12,491 720-759 1,896 6,104 2,198 2,901 3,147 9,491 1,024 291 27,052 760-799 6,242 16,885 5,542 7,135 7,458 15,595 1,609 298 60,764 800+ 5,522 33,344 15,917 24,461 28,544 55,278 3,824 512 167,402 No FICO available 45 296 122 123 173 2,249 286 388 3,682 Government insured/guaranteed loans (2) 1 32 150 271 498 9,887 — — 10,839 Total real estate 1-4 family first mortgage 14,256 59,144 25,241 36,511 41,709 105,728 8,063 2,268 292,920 Real estate 1-4 family junior lien mortgage < 600 — — — — — 133 370 611 1,114 600-639 — — — — — 82 310 361 753 640-679 — — — — — 134 686 610 1,430 680-719 — — — — — 250 1,697 1,102 3,049 720-759 — — — — — 274 2,751 1,243 4,268 760-799 — — — — — 228 3,785 1,198 5,211 800+ — — — — — 359 9,220 2,009 11,588 No FICO available 8 44 51 49 41 110 509 302 1,114 Total real estate 1-4 family junior lien mortgage 8 44 51 49 41 1,570 19,328 7,436 28,527 Credit Card < 600 — — — — — — 3,117 119 3,236 600-639 — — — — — — 2,657 49 2,706 640-679 — — — — — — 6,291 61 6,352 680-719 — — — — — — 9,324 53 9,377 720-759 — — — — — — 7,866 24 7,890 760-799 — — — — — — 5,176 6 5,182 800+ — — — — — — 3,678 1 3,679 No FICO available — — — — — — 159 1 160 Total credit card — — — — — — 38,268 314 38,582 Automobile < 600 419 2,045 1,163 825 1,082 541 — — 6,075 600-639 687 1,849 715 425 453 216 — — 4,345 640-679 1,031 2,830 1,168 644 596 262 — — 6,531 680-719 1,104 3,383 1,549 885 749 318 — — 7,988 720-759 1,045 3,334 1,554 911 723 312 — — 7,879 760-799 991 3,335 1,533 890 652 270 — — 7,671 800+ 1,065 3,112 1,580 1,064 808 349 — — 7,978 No FICO available — 19 10 17 30 25 — — 101 Total automobile 6,342 19,907 9,272 5,661 5,093 2,293 — — 48,568 Other revolving credit and installment < 600 3 49 65 50 47 204 219 27 664 600-639 12 66 59 40 41 198 188 15 619 640-679 51 226 169 105 96 410 525 23 1,605 680-719 124 472 310 195 172 719 1,005 29 3,026 720-759 191 683 399 248 226 969 1,169 28 3,913 760-799 249 857 445 288 265 1,179 1,524 18 4,825 800+ 274 1,024 621 452 453 2,118 2,690 44 7,676 No FICO available 45 221 161 113 18 84 1,564 41 2,247 FICO not required — — — — — — 8,936 — 8,936 Total other revolving credit and installment 949 3,598 2,229 1,491 1,318 5,881 17,820 225 33,511 Total consumer loans $ 21,555 82,693 36,793 43,712 48,161 115,472 83,479 10,243 442,108 (continued on next page) (continued from prior page) Real estate Real estate Credit Automobile Other Total December 31, 2019 By FICO: < 600 $ 3,264 1,164 3,373 6,041 704 14,546 600-639 2,392 782 2,853 4,230 670 10,927 640-679 5,068 1,499 6,626 6,324 1,730 21,247 680-719 12,844 3,192 9,732 7,871 3,212 36,851 720-759 27,879 4,407 8,376 7,839 4,097 52,598 760-799 61,559 5,483 5,648 7,624 4,915 85,229 800+ 165,460 11,851 4,037 7,900 7,585 196,833 No FICO available 3,656 1,118 368 44 2,316 7,502 FICO not required — — — — 9,075 9,075 Government insured/guaranteed loans (2) 11,170 — — — — 11,170 Total consumer loans (excluding PCI) 293,292 29,496 41,013 47,873 34,304 445,978 Total consumer PCI loans (carrying value) (3) 555 13 — — — 568 Total consumer loans $ 293,847 29,509 41,013 47,873 34,304 446,546 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (3) 41% of the adjusted unpaid principal balance for consumer PCI loans had FICO scores less than 680 and 19% where no FICO was available to us at December 31, 2019 .
Consumer Loan Categories by LTV/CLTV and Vintage	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 Loan Categories by LTV/CLTV and Vintage (1) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total March 31, 2020 Real estate 1-4 family first mortgage By LTV/CLTV: 0-60% $ 4,143 16,842 8,032 14,961 22,878 76,122 5,503 1,644 150,125 60.01-80% 9,526 34,239 14,133 19,674 17,326 17,228 1,672 401 114,199 80.01-100% 544 7,791 2,714 1,412 814 1,757 585 155 15,772 100.01-120% (2) — 80 96 86 72 310 169 39 852 > 120% (2) — 47 29 27 29 124 71 14 341 No LTV/CLTV available 42 113 87 80 92 300 63 15 792 Government insured/guaranteed loans (3) 1 32 150 271 498 9,887 — — 10,839 Total real estate 1-4 family first mortgage 14,256 59,144 25,241 36,511 41,709 105,728 8,063 2,268 292,920 Real estate 1-4 family junior lien mortgage By LTV/CLTV: 0-60% — — — — — 634 9,526 4,023 14,183 60.01-80% — — — — — 450 6,827 2,055 9,332 80.01-100% — — — — — 290 2,165 971 3,426 100.01-120% (2) — — — — — 102 566 262 930 > 120% (2) — — — — — 33 216 80 329 No LTV/CLTV available 8 44 51 49 41 61 28 45 327 Total real estate 1-4 family junior lien mortgage 8 44 51 49 41 1,570 19,328 7,436 28,527 Total $ 14,264 59,188 25,292 36,560 41,750 107,298 27,391 9,704 321,447 December 31, 2019 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% $ 151,478 14,603 166,081 60.01-80% 114,795 9,663 124,458 80.01-100% 13,867 3,574 17,441 100.01-120% (2) 860 978 1,838 > 120% (2) 338 336 674 No LTV/CLTV available 784 342 1,126 Government insured/guaranteed loans (3) 11,170 — 11,170 Total consumer loans (excluding PCI) 293,292 29,496 322,788 Total consumer PCI loans (carrying value) (4) 555 13 568 Total consumer loans $ 293,847 29,509 323,356 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) 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. (3) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. (4) 9% of the adjusted unpaid principal balance for consumer PCI loans have LTV/CLTV amounts greater than 80% at December 31, 2019 .
Nonaccrual Loans	Table 6.13 provides loans on nonaccrual status. In connection with our adoption of CECL, nonaccrual loans may have an allowance for credit losses or a negative allowance for credit losses from expected recoveries of amounts previously written off. Table 6.13: Nonaccrual Loans (1) Amortized cost (in millions) Nonaccrual loans Nonaccrual loans without related allowance for credit losses (2) Recognized interest income March 31, 2020 Commercial: Commercial and industrial $ 1,779 243 16 Real estate mortgage 944 194 8 Real estate construction 21 5 4 Lease financing 131 10 — Total commercial 2,875 452 28 Consumer: Real estate 1-4 family first mortgage 2,372 1,382 44 Real estate 1-4 family junior lien mortgage 769 431 16 Automobile 99 — 3 Other revolving credit and installment 41 — 1 Total consumer 3,281 1,813 64 Total nonaccrual loans $ 6,156 2,265 92 December 31, 2019 Commercial: Commercial and industrial $ 1,545 Real estate mortgage 573 Real estate construction 41 Lease financing 95 Total commercial 2,254 Consumer: Real estate 1-4 family first mortgage 2,150 Real estate 1-4 family junior lien mortgage 796 Automobile 106 Other revolving credit and installment 40 Total consumer 3,092 Total nonaccrual loans (excluding PCI) $ 5,346 (1) Disclosure is not comparative due to our adoption of CECL on January 1, 2020. For more information, see Note 1 (Summary of Significant Accounting Policies). (2) Nonaccrual loans may not have an allowance for credit losses if the loss expectations are zero given solid collateral value.
Loans 90 Days or More Past Due and Still Accruing	Table 6.14 shows 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 (in millions) Mar 31, 2020 Dec 31, 2019 Total: $ 7,023 7,285 Less: FHA insured/VA guaranteed (1) 6,142 6,352 Total, not government insured/guaranteed $ 881 933 By segment and class, not government insured/guaranteed: Commercial: Commercial and industrial $ 24 47 Real estate mortgage 28 31 Real estate construction 1 — Total commercial 53 78 Consumer: Real estate 1-4 family first mortgage 128 112 Real estate 1-4 family junior lien mortgage 25 32 Credit card 528 546 Automobile 69 78 Other revolving credit and installment 78 87 Total consumer 828 855 Total, not government insured/guaranteed $ 881 933 (1) Represents loans whose repayments are predominantly
Impaired Loans Summary	Table 6.15 summarizes key information for impaired loans. Our impaired loans at December 31, 2019 , predominantly included loans on nonaccrual status in the commercial portfolio segment and loans modified in a TDR, whether on accrual or nonaccrual status. Impaired loans generally had estimated losses which are included in the allowance for credit losses. We did 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 excluded PCI loans and loans that had been fully charged off or otherwise had zero recorded investment. Table 6.15 included trial modifications that totaled $115 million at December 31, 2019 . For additional information on our legacy impaired loans and allowance for credit losses, see Note 1 (Summary of Significant Accounting Policies) in our 2019 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 December 31, 2019 Commercial: Commercial and industrial $ 2,792 2,003 1,903 311 Real estate mortgage 1,137 974 803 110 Real estate construction 81 51 41 11 Lease financing 131 105 105 35 Total commercial 4,141 3,133 2,852 467 Consumer: Real estate 1-4 family first mortgage 8,107 7,674 4,433 437 Real estate 1-4 family junior lien mortgage 1,586 1,451 925 144 Credit card 520 520 520 209 Automobile 138 81 42 8 Other revolving credit and installment 178 171 155 49 Total consumer (1) 10,529 9,897 6,075 847 Total impaired loans (excluding PCI) $ 14,670 13,030 8,927 1,314 (1) Included the recorded investment of $1.2 billion at December 31, 2019 of government insured/guaranteed loans that are predominantly insured by the FHA or guaranteed by the VA and generally do not have an ACL. Impaired loans may also have limited, if any, ACL when the recorded investment of the loan approximates estimated net realizable value as a result of charge-offs prior to a TDR modification.
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 Year ended December 31, 2019 (in millions) Average recorded investment Recognized interest income Commercial: Commercial and industrial $ 2,150 129 Real estate mortgage 1,067 59 Real estate construction 52 6 Lease financing 93 1 Total commercial 3,362 195 Consumer: Real estate 1-4 family first mortgage 9,031 506 Real estate 1-4 family junior lien mortgage 1,586 99 Credit card 488 64 Automobile 84 12 Other revolving credit and installment 162 13 Total consumer 11,351 694 Total impaired loans (excluding PCI) $ 14,713 889 Interest income: Cash basis of accounting $ 241 Other (1) 648 Total interest income $ 889 (1) Included 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.
TDR Modifications	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 March 31, 2020 Commercial: Commercial and industrial $ 18 15 314 347 44 0.65 % $ 15 Real estate mortgage — 13 152 165 — 0.97 13 Real estate construction — — 6 6 — 2.49 — Lease financing — — — — — — — Total commercial 18 28 472 518 44 0.82 28 Consumer: Real estate 1-4 family first mortgage 21 3 166 190 — 1.63 17 Real estate 1-4 family junior lien mortgage 1 6 14 21 — 2.38 6 Credit card — 95 — 95 — 12.33 95 Automobile 2 2 10 14 6 4.69 2 Other revolving credit and installment — 12 2 14 — 8.22 12 Trial modifications (6) — — 2 2 — — — Total consumer 24 118 194 336 6 10.00 132 Total $ 42 146 666 854 50 8.38 % $ 160 Quarter ended March 31, 2019 Commercial: Commercial and industrial $ — 11 554 565 13 0.68 % $ 11 Real estate mortgage — 2 73 75 — 0.95 2 Real estate construction — — 3 3 — — — Lease financing — — — — — — — Total commercial — 13 630 643 13 0.73 13 Consumer: Real estate 1-4 family first mortgage 35 3 294 332 1 1.95 19 Real estate 1-4 family junior lien mortgage 2 11 25 38 1 2.29 12 Credit card — 97 — 97 — 13.20 97 Automobile 2 1 12 15 6 5.38 1 Other revolving credit and installment — 11 3 14 — 7.58 11 Trial modifications (6) — — — — — — — Total consumer 39 123 334 496 8 10.27 140 Total $ 39 136 964 1,139 21 9.44 % $ 153 (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 $263 million and $360 million for the first quarter of 2020 and 2019 , 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 $29 million and $3 million for the first quarter of 2020 and 2019 , 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.
Defaulted TDRs	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 March 31, (in millions) 2020 2019 Commercial: Commercial and industrial $ 185 23 Real estate mortgage 21 28 Real estate construction — 3 Total commercial 206 54 Consumer: Real estate 1-4 family first mortgage 10 11 Real estate 1-4 family junior lien mortgage 2 5 Credit card 26 21 Automobile 2 3 Other revolving credit and installment 1 2 Total consumer 41 42 Total $ 247 96

Leasing Activity (Tables)

Leasing Activity (Tables)	3 Months Ended
	Mar. 31, 2020
Lessor Disclosure [Abstract]
Leasing Revenue	Table 7.1 presents the composition of our leasing revenue. Table 7.1: Leasing Revenue Quarter ended March 31, (in millions) 2020 2019 Interest income on lease financing $ 211 223 Other lease revenues: Variable revenues on lease financing 27 24 Fixed revenues on operating leases 314 373 Variable revenues on operating leases 13 18 Other lease-related revenues (1) (2 ) 28 Lease income 352 443 Total leasing revenue $ 563 666 (1) Predominantly includes net gains (losses) on disposition of assets leased under operating leases or lease financings.
Lessee Disclosure [Abstract]
Operating Lease Right of Use (ROU) Assets and Lease Liabilities	Table 7.2 presents balances for our operating leases. Table 7.2: Operating Lease Right of Use (ROU) Assets and Lease Liabilities (in millions) Mar 31, 2020 Dec 31, 2019 ROU assets $ 4,650 4,724 Lease liabilities 5,224 5,297
Lease Costs	Table 7.3 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 7.3: Lease Costs Quarter ended March 31, (in millions) 2020 2019 Fixed lease expense – operating leases $ 291 297 Variable lease expense 66 73 Other (1) (14 ) (8 ) Total lease costs $ 343 362 (1) Predominantly includes gains recognized from sale leaseback transactions and sublease rental income.

Equity Securities (Tables)

Equity Securities (Tables)	3 Months Ended
	Mar. 31, 2020
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) Mar 31, Dec 31, Held for trading at fair value: Marketable equity securities $ 13,573 27,440 Not held for trading: Fair value: Marketable equity securities (1) 7,708 6,481 Nonmarketable equity securities 6,895 8,015 Total equity securities at fair value 14,603 14,496 Equity method: Low-income housing tax credit investments 11,290 11,343 Private equity 3,351 3,459 Tax-advantaged renewable energy 3,991 3,811 New market tax credit and other 387 387 Total equity method 19,019 19,000 Other: Federal Reserve Bank stock and other at cost (2) 4,512 4,790 Private equity (3) 2,340 2,515 Total equity securities not held for trading 40,474 40,801 Total equity securities $ 54,047 68,241 (1) Includes $3.1 billion and $3.8 billion at March 31, 2020 , and December 31, 2019 , respectively, related to securities held as economic hedges of our deferred compensation plan obligations. (2) Includes $4.5 billion and $4.8 billion at March 31, 2020 , and December 31, 2019 , 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 March 31, (in millions) 2020 2019 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ (803 ) 377 Nonmarketable equity securities (1,104 ) 936 Total equity securities carried at fair value (1,907 ) 1,313 Net gains (losses) from nonmarketable equity securities not carried at fair value: Impairment write-downs (935 ) (36 ) Net unrealized gains related to measurement alternative observable transactions 222 185 Net realized gains on sale — 237 All other — — Total nonmarketable equity securities not carried at fair value (713 ) 386 Net gains (losses) from economic hedge derivatives (1) 1,219 (885 ) Total net gains (losses) from equity securities not held for trading $ (1,401 ) 814 (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 March 31, (in millions) 2020 2019 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 222 185 Gross unrealized losses due to observable price changes — — Impairment write-downs (354 ) (22 ) Realized net gains from sale 2 23 Total net gains (losses) recognized during the period $ (130 ) 186 Table 8.4 presents cumulative carrying value adjustments to nonmarketable equity securities accounted for under the measurement alternative that were still held at the end of each reporting period presented. Table 8.4: Measurement Alternative Cumulative Gains (Losses) (in millions) Mar 31, Dec 31, Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 1,084 973 Gross unrealized losses due to observable price changes (42 ) (42 ) Impairment write-downs (473 ) (134 )

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Other Assets [Abstract]
Other Assets	Table 9.1 presents the components of other assets. Table 9.1: Other Assets (in millions) Mar 31, Dec 31, Corporate/bank-owned life insurance $ 20,128 20,070 Accounts receivable (1) 46,762 29,137 Interest receivable: AFS and HTM debt securities 1,705 1,729 Loans 3,038 3,099 Trading and other 708 758 Customer relationship and other amortized intangibles 399 423 Foreclosed assets: Residential real estate: Government insured/guaranteed (1) 43 50 Non-government insured/guaranteed 137 172 Other 72 81 Operating lease assets (lessor) 8,124 8,221 Operating lease ROU assets (lessee) 4,650 4,724 Due from customers on acceptances 128 253 Other 10,269 10,200 Total other assets $ 96,163 78,917 (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 2019 Form 10-K.

Securitizations and Variable _2

Securitizations and Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2020
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. 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 Total March 31, 2020 Cash and due from banks $ — 19 — 19 Interest-earning deposits with banks — — — — Debt securities (1): Trading debt securities 1,326 316 — 1,642 Available-for-sale debt securities 1,718 300 — 2,018 Held-to-maturity debt securities 1,158 — — 1,158 Loans 2,196 13,102 77 15,375 Mortgage servicing rights 8,709 — — 8,709 Derivative assets 269 6 — 275 Equity securities 11,337 95 — 11,432 Other assets 1,030 258 — 1,288 Total assets 27,743 14,096 77 41,916 Short-term borrowings — 500 — 500 Derivative liabilities 2 8 — 10 Accrued expenses and other liabilities 154 231 — 385 Long-term debt 4,722 235 76 5,033 Total liabilities 4,878 974 76 5,928 Noncontrolling interests — 33 — 33 Net assets $ 22,865 13,089 1 35,955 December 31, 2019 Cash and due from banks $ — 16 — 16 Interest-earning deposits with banks — 284 — 284 Debt securities (1): Trading debt securities 792 339 — 1,131 Available-for-sale debt securities 1,696 201 — 1,897 Held-to-maturity debt securities 791 — — 791 Loans 2,127 13,170 80 15,377 Mortgage servicing rights 11,884 — — 11,884 Derivative assets 142 1 — 143 Equity securities 11,401 118 — 11,519 Other assets 1,268 239 — 1,507 Total assets 30,101 14,368 80 44,549 Short-term borrowings — 401 — 401 Derivative liabilities 1 3 — 4 Accrued expenses and other liabilities 189 235 — 424 Long-term debt 4,817 587 79 5,483 Total liabilities 5,007 1,226 79 6,312 Noncontrolling interests — 43 — 43 Net assets $ 25,094 13,099 1 38,194 (1) 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).
Unconsolidated VIEs	Table 10.2 provides a summary of our exposure to unconsolidated VIEs with which we have significant continuing involvement but for which we are not the primary beneficiary. We include transactions where we were the sponsor or servicer and also have other significant forms of continuing involvement. Sponsorship includes transactions where we solely or materially participated in the initial design or structuring of the VIE or marketed the transaction to investors. We consider investments in securities, loans, guarantees, liquidity agreements, commitments and certain derivatives to be other forms of continuing involvement that may be significant. We also include transactions where we transferred assets to a VIE, account for the transfer as a sale, and service the VIE collateral or have other forms of continuing involvement that may be significant (as described above). We exclude certain transactions with unconsolidated VIEs when our continuing involvement is temporary in nature or insignificant in size. We also exclude 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 and advances Derivatives Debt, guarantees, and other commitments Net assets March 31, 2020 Residential mortgage loan securitizations: Conforming (2) $ 1,082,170 2,103 8,607 — (649 ) 10,061 Other/nonconforming 5,226 120 89 — — 209 Commercial mortgage loan securitizations 174,761 2,440 1,043 196 (18 ) 3,661 Tax credit structures 39,499 12,841 — — (4,201 ) 8,640 Other asset-based finance structures 1,314 190 — 71 (8 ) 253 Other 1,118 41 — — — 41 Total $ 1,304,088 17,735 9,739 267 (4,876 ) 22,865 Maximum exposure to loss Debt and equity interests (1) Servicing assets and advances Derivatives Debt, guarantees, and other commitments Total exposure Residential mortgage loan securitizations: Conforming (2) $ 1,582 8,607 — 973 11,162 Other/nonconforming 120 89 — — 209 Commercial mortgage loan securitizations 2,440 1,043 196 11,776 15,455 Tax credit structures 12,841 — — 1,684 14,525 Other asset-based finance structures 190 — 76 79 345 Other 41 — — 157 198 Total $ 17,214 9,739 272 14,669 41,894 Carrying value – asset (liability) (in millions) Total Debt and Servicing Derivatives Debt, guarantees, Net December 31, 2019 Residential mortgage loan securitizations: Conforming (2) $ 1,098,103 1,528 11,931 — (683 ) 12,776 Other/nonconforming 5,178 6 152 — — 158 Commercial mortgage loan securitizations 169,736 2,239 1,069 80 (43 ) 3,345 Tax credit structures 39,091 12,826 — — (4,260 ) 8,566 Other asset-based finance structures 1,355 157 — 61 (20 ) 198 Other 1,167 51 — — — 51 Total $ 1,314,630 16,807 13,152 141 (5,006 ) 25,094 Maximum exposure to loss Debt and equity interests (1) Servicing assets and advances Derivatives Debt, guarantees, and other commitments Total exposure Residential mortgage loan securitizations: Conforming (2) $ 972 11,931 — 937 13,840 Other/nonconforming 6 152 — — 158 Commercial mortgage loan securitizations 2,239 1,069 80 11,667 15,055 Tax credit structures 12,826 — — 1,701 14,527 Other asset-based finance structures 157 — 63 91 311 Other 51 — — 157 208 Total $ 16,251 13,152 143 14,553 44,099 (1) Includes total equity interests of $11.3 billion and $11.4 billion at March 31, 2020 , and December 31, 2019 , 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) Carrying values include assets and related liabilities of $521 million and $556 million at March 31, 2020 , and December 31, 2019
Transfers with Continuing Involvement	Table 10.3 presents information about transfers during the period of assets to unconsolidated VIEs or third-party investors for which we recorded the transfers as sales and have continuing involvement with the transferred assets. In connection with these transfers, we recorded servicing assets, securities, and a liability for repurchase losses which reflects management’s estimate of probable losses related to various representations and warranties for the loans transferred. Each of these interests are initially measured at fair value. Servicing rights are classified as Level 3 measurements, and securities are initially predominantly classified as Level 2. Sales with continuing involvement include securitizations of conforming residential mortgages that are sold to the GSEs or GNMA. Substantially all transfers to these entities resulted in no gain or loss because the loans were already measured at fair value on a recurring basis. Table 10.3: Transfers With Continuing Involvement Quarter ended March 31, (in millions) 2020 2019 Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Net gains (losses) on sale $ 52 69 14 47 Asset balances sold 47,857 2,728 34,103 2,702 Servicing rights recognized 446 34 320 26 Securities recognized 2,313 62 912 — Liability for repurchase losses recognized 3 — 3 —
Residential Mortgage Servicing Rights	Table 10.4 presents the key weighted-average assumptions we used to measure residential MSRs at the date of securitization. Table 10.4: Residential Mortgage Servicing Rights Residential mortgage servicing rights 2020 2019 Quarter ended March 31, Prepayment speed (1) 12.7 % 13.5 Discount rate 6.5 8.1 Cost to service ($ per loan) (2) $ 91 94 (1) The prepayment speed assumption for residential MSRs 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 due to changes in model assumptions and the mix of modified government-guaranteed loans sold to GNMA.
Cash Inflows (Outflows) from Sales and Securitization Activity	Table 10.5 presents the proceeds related to transfers accounted for as sales in which we have continuing involvement with the transferred financial assets, as well as current period cash flows from continuing involvement with previous transfers accounted for as sales. Cash flows from other interests held predominantly include principal and interest payments received on retained bonds. Repurchases of assets represents cash paid to repurchase loans from investors under representation and warranty obligations or in connection with the exercise of cleanup calls on securitizations. Loss reimbursements is cash paid to reimburse investors for losses on individual loans that are already liquidated. Government insured loans are delinquent loans that we service and have exercised our option to purchase out of GNMA pools. These loans are insured by the FHA or guaranteed by the VA. Table 10.5: Cash Inflows (Outflows) From Sales and Securitization Activity Mortgage loans (in millions) 2020 2019 Quarter ended March 31, Proceeds from securitizations and whole loan sales $ 50,229 36,507 Fees from servicing rights retained 756 780 Cash flows from other interests held 167 111 Repurchases of assets/loss reimbursements: Non-agency securitizations and whole loan transactions — — Government insured loans (1,440 ) (1,942 ) Agency securitizations (26 ) (17 ) Servicing advances, net of recoveries (1) 33 39 (1) Cash flows from servicing advances includes principal and interest payments to investors required by servicing agreements.
Retained Interests from Unconsolidated VIEs	Table 10.6 provides key economic assumptions and the sensitivity of the current fair value of residential MSRs and other interests held related to unconsolidated VIEs to immediate adverse changes in those assumptions. Amounts for residential MSRs include purchased servicing rights as well as servicing rights resulting from the transfer of loans. See Note 16 (Fair Values of Assets and Liabilities) for additional information on key economic assumptions for residential MSRs. “Other interests held” were obtained when we securitized residential and commercial mortgage loans. Residential mortgage-backed securities retained in securitizations issued through GSEs or GNMA, are excluded from the table because these securities have a remote risk of credit loss due to the GSE or government guarantee. These securities also have economic characteristics similar to GSE or GNMA 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 10.6: Retained Interests from Unconsolidated VIEs Other interests held Residential mortgage servicing rights Commercial ($ in millions, except cost to service amounts) Subordinated bonds Senior bonds Fair value of interests held at March 31, 2020 $ 8,126 924 326 Expected weighted-average life (in years) 4.3 7.1 5.6 Key economic assumptions: Prepayment speed assumption 15.7 % Decrease in fair value from: 10% adverse change $ 475 25% adverse change 1,105 Discount rate assumption 7.1 % 5.4 3.5 Decrease in fair value from: 100 basis point increase $ 293 54 16 200 basis point increase 563 103 30 Cost to service assumption ($ per loan) 112 Decrease in fair value from: 10% adverse change 234 25% adverse change 585 Credit loss assumption 3.7 % — Decrease in fair value from: 10% higher losses $ 28 — 25% higher losses 31 — Fair value of interests held at December 31, 2019 $ 11,517 909 352 Expected weighted-average life (in years) 5.3 7.3 5.5 Key economic assumptions: Prepayment speed assumption 11.9 % Decrease in fair value from: 10% adverse change $ 537 25% adverse change 1,261 Discount rate assumption 7.2 % 4.0 2.9 Decrease in fair value from: 100 basis point increase $ 464 53 16 200 basis point increase 889 103 32 Cost to service assumption ($ per loan) 102 Decrease in fair value from: 10% adverse change 253 25% adverse change 632 Credit loss assumption 3.1 % — Decrease in fair value from: 10% higher losses $ 1 — 25% higher losses 4 —
Off-Balance Sheet Loans Sold or Securitized	Table 10.7 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 10.7: Off-Balance Sheet Loans Sold or Securitized Net charge-offs (2) Total loans Delinquent loans and foreclosed assets (1) Quarter ended Mar 31, (in millions) Mar 31, 2020 Dec 31, 2019 Mar 31, 2020 Dec 31, 2019 2020 2019 Commercial: Real estate mortgage $ 113,196 112,507 679 776 71 79 Total commercial 113,196 112,507 679 776 71 79 Consumer: Real estate 1-4 family first mortgage 986,570 1,008,446 6,326 6,664 31 67 Real estate 1-4 family junior lien mortgage 12 13 2 2 — — Total consumer 986,582 1,008,459 6,328 6,666 31 67 Total off-balance sheet sold or securitized loans (3) $ 1,099,778 1,120,966 7,007 7,442 102 146 (1) Includes $365 million and $492 million of commercial foreclosed assets and $354 million and $356 million of consumer foreclosed assets at March 31, 2020 , and December 31, 2019 , respectively. (2) 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. (3) At March 31, 2020 , and December 31, 2019 , the table includes total loans of $1.0 trillion at both dates, delinquent loans of $5.2 billion at both dates, and foreclosed assets of $259 million and $251 million , respectively, for FNMA, FHLMC and GNMA.
Transactions with Consolidated VIEs and Secured Borrowings	Table 10.8 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 10.8: Transactions with Consolidated VIEs and Secured Borrowings Carrying value (in millions) Total VIE assets Assets Liabilities Noncontrolling interests Net assets March 31, 2020 Secured borrowings: Residential mortgage securitizations $ 77 77 (76 ) — 1 Total secured borrowings 77 77 (76 ) — 1 Consolidated VIEs: Commercial and industrial loans and leases 7,760 7,755 (226 ) (11 ) 7,518 Nonconforming residential mortgage loan securitizations 679 567 (236 ) — 331 Commercial real estate loans 5,022 5,022 — — 5,022 Municipal tender option bond securitizations 500 505 (502 ) — 3 Other 247 247 (10 ) (22 ) 215 Total consolidated VIEs 14,208 14,096 (974 ) (33 ) 13,089 Total secured borrowings and consolidated VIEs $ 14,285 14,173 (1,050 ) (33 ) 13,090 December 31, 2019 Secured borrowings: Residential mortgage securitizations $ 81 80 (79 ) — 1 Total secured borrowings 81 80 (79 ) — 1 Consolidated VIEs: Commercial and industrial loans and leases 8,054 8,042 (529 ) (16 ) 7,497 Nonconforming residential mortgage loan securitizations 935 809 (290 ) — 519 Commercial real estate loans 4,836 4,836 — — 4,836 Municipal tender option bond securitizations 401 402 (401 ) — 1 Other 279 279 (6 ) (27 ) 246 Total consolidated VIEs 14,505 14,368 (1,226 ) (43 ) 13,099 Total secured borrowings and consolidated VIEs $ 14,586 14,448 (1,305 ) (43 ) 13,100

Mortgage Banking Activities (Ta

Mortgage Banking Activities (Tables)	3 Months Ended
	Mar. 31, 2020
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 March 31, (in millions) 2020 2019 Fair value, beginning of period $ 11,517 14,649 Servicing from securitizations or asset transfers (1) 461 341 Sales and other (2) (31 ) (281 ) Net additions 430 60 Changes in fair value: Due to changes in valuation model inputs or assumptions: Mortgage interest rates (3) (3,022 ) (940 ) Servicing and foreclosure costs (4) (73 ) 12 Discount rates (5) 27 100 Prepayment estimates and other (6) (189 ) (63 ) Net changes in valuation model inputs or assumptions (3,257 ) (891 ) Changes due to collection/realization of expected cash flows over time (7) (564 ) (482 ) Total changes in fair value (3,821 ) (1,373 ) Fair value, end of period $ 8,126 13,336 (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. (7) Represents the reduction in the MSR fair value for the cash flows expected to be collected during the period, net of income accreted due to the passage of time.
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 March 31, (in millions) 2020 2019 Balance, beginning of period $ 1,430 1,443 Purchases 8 24 Servicing from securitizations or asset transfers 34 26 Amortization (66 ) (66 ) Balance, end of period (1) $ 1,406 1,427 Fair value of amortized MSRs: Beginning of period $ 1,872 2,288 End of period 1,490 2,149 (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) Mar 31, 2020 Dec 31, 2019 Residential mortgage servicing: Serviced and subserviced for others $ 1,041 1,065 Owned loans serviced 341 343 Total residential servicing 1,382 1,408 Commercial mortgage servicing: Serviced and subserviced for others 573 575 Owned loans serviced 124 124 Total commercial servicing 697 699 Total managed servicing portfolio $ 2,079 2,107 Total serviced for others, excluding subserviced for others $ 1,602 1,629 Ratio of MSRs to related loans serviced for others 0.60 % 0.79
Mortgage Banking Noninterest Income	Table 11.4 presents the components of mortgage banking noninterest income. Table 11.4: Mortgage Banking Noninterest Income Quarter ended March 31, (in millions) 2020 2019 Servicing income, net: Servicing fees: Contractually specified servicing fees $ 808 840 Late charges 27 33 Ancillary fees 30 38 Unreimbursed direct servicing costs (1) (107 ) (70 ) Net servicing fees 758 841 Changes in fair value of MSRs carried at fair value: Due to changes in valuation model inputs or assumptions (2) (A) (3,257 ) (891 ) Changes due to collection/realization of expected cash flows over time (3) (564 ) (482 ) Total changes in fair value of MSRs carried at fair value (3,821 ) (1,373 ) Amortization (66 ) (66 ) Net derivative gains from economic hedges (4) (B) 3,400 962 Total servicing income, net 271 364 Net gains on mortgage loan origination/sales activities (5) 108 344 Total mortgage banking noninterest income $ 379 708 Market-related valuation changes to MSRs, net of hedge results (2)(4) (A)+(B) $ 143 71 (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 the reduction in in the MSR fair value for the cash flows expected to be collected during the period, net of income accreted due to the passage of time. (4) 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. (5) Includes net losses of $(929) million and $(151) million in first quarter 2020 and 2019 , respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets (Tables)

Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Table 12.1 presents the gross carrying value of intangible assets and accumulated amortization. Table 12.1: Intangible Assets March 31, 2020 December 31, 2019 (in millions) Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value Amortized intangible assets (1): MSRs (2) $ 4,465 (3,059 ) 1,406 4,422 (2,992 ) 1,430 Customer relationship and other intangibles 879 (480 ) 399 947 (524 ) 423 Total amortized intangible assets $ 5,344 (3,539 ) 1,805 5,369 (3,516 ) 1,853 Unamortized intangible assets: MSRs (carried at fair value) (2) $ 8,126 11,517 Goodwill 26,381 26,390 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 March 31, 2020 . 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 Three months ended March 31, 2020 (actual) $ 67 24 91 Estimate for the remainder of 2020 $ 202 71 273 Estimate for year ended December 31, 2021 235 81 316 2022 210 68 278 2023 181 59 240 2024 156 48 204 2025 130 39 169
Goodwill	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 generally one level below the operating segments. Table 12.3: Goodwill (in millions) Community Banking Wholesale Banking Wealth and Investment Management Consolidated Company December 31, 2018 $ 16,685 8,450 1,283 26,418 Foreign currency translation — 2 — 2 March 31, 2019 $ 16,685 8,452 1,283 26,420 December 31, 2019 $ 16,685 8,429 1,276 26,390 Foreign currency translation — (9 ) — (9 ) March 31, 2020 $ 16,685 8,420 1,276 26,381

Guarantees, Pledged Assets an_2

Guarantees, Pledged Assets and Collateral and Other Commitments (Tables)	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 Standby letters of credit $ 83 12,016 3,839 2,756 429 19,040 7,183 Direct pay letters of credit — 1,674 3,955 836 40 6,505 1,321 Written options (1) 690 18,799 10,315 2,387 327 31,828 24,176 Loans and MLHFS sold with recourse (2) 28 111 712 1,333 10,039 12,195 10,000 Exchange and clearing house guarantees — — — — 5,054 5,054 — Other guarantees and indemnifications (3) 1 610 3 1 450 1,064 559 Total guarantees $ 802 33,210 18,824 7,313 16,339 75,686 43,239 December 31, 2019 Standby letters of credit $ 36 11,569 4,460 2,812 467 19,308 7,104 Direct pay letters of credit — 1,861 3,815 824 105 6,605 1,184 Written options (1) (345 ) 17,088 10,869 2,341 273 30,571 18,113 Loans and MLHFS sold with recourse (2) 52 114 576 1,356 10,050 12,096 9,835 Exchange and clearing house guarantees — — — — 4,817 4,817 — Other guarantees and indemnifications (3) 1 785 1 3 809 1,598 698 Total guarantees $ (256 ) 31,417 19,721 7,336 16,521 74,995 36,934 (1) Written 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. (2) Represent recourse provided, predominantly to the GSEs, on loans sold under various programs and arrangements. (3) Includes indemnifications provided to certain third-party clearing agents. Outstanding customer obligations under these arrangements were $27 million and $80 million with related collateral of $389 million and $696 million at March 31, 2020 , and December 31, 2019 , respectively.
Pledged Assets	Table 13.2 provides the carrying amount of on-balance sheet pledged assets and the fair value of other pledged collateral. Other pledged collateral is collateral we have received from third parties, have the right to repledge and is not recognized on our balance sheet. TRADING RELATED ACTIVITY Our trading businesses may pledge debt and equity securities in connection with securities sold under agreements to repurchase (repurchase agreements) and securities lending arrangements. The collateral that we pledge related to our trading activities may include our own collateral as well as collateral that we have received from third parties and have the right to repledge. Substantially all of the trading activity pledged collateral is eligible to be repledged or sold by the secured party. NON-TRADING RELATED ACTIVITY As part of our liquidity management strategy, we may pledge loans, debt securities, and other assets to secure trust and public deposits, borrowings and letters of credit from the Federal Home Loan Bank (FHLB) and FRB and for other purposes as required or permitted by law or insurance statutory requirements. Substantially all of the non-trading activity pledged collateral is not eligible to be repledged or sold by the secured party. VIE RELATED We pledge assets in connection with various types of transactions entered into with VIEs. These pledged assets can only be used to settle the liabilities of those entities. We also have loans recorded on our balance sheet which represent certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. See Note 10 (Securitizations and Variable Interest Entities) for additional information on consolidated VIE assets and VIEs accounted for as secured borrowings. Table 13.2: Pledged Assets (1) (in millions) Mar 31, Dec 31, Related to trading activities: Repledged third-party owned debt and equity securities $ 61,479 60,083 Trading debt securities and other 39,828 51,083 Equity securities 1,122 1,379 Total pledged assets related to trading activities 102,429 112,545 Related to non-trading activities: Loans 400,111 406,106 Debt securities: Available-for-sale 59,116 61,126 Held-to-maturity 3,884 3,685 Mortgage loans held for sale 1,877 2,266 Total pledged assets related to non-trading activities 464,988 473,183 Related to VIEs: Consolidated VIE assets 14,096 14,368 VIEs accounted for as secured borrowings 77 80 Loans eligible for repurchase from GNMA securitizations 533 568 Total pledged assets related to VIEs 14,706 15,016 Total pledged assets $ 582,123 600,744 (1) Prior period amounts have been revised to conform with the current period presentation.
Offsetting - 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. Most transactions subject to these agreements do not meet those criteria and thus are not eligible for balance sheet netting. Collateral we pledged consists of non-cash instruments, such as securities or loans, and is not netted on the balance sheet against the related 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) Mar 31, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 128,844 140,773 Gross amounts offset in consolidated balance sheet (1) (22,762 ) (19,180 ) Net amounts in consolidated balance sheet (2) 106,082 121,593 Collateral not recognized in consolidated balance sheet (3) (105,136 ) (120,786 ) Net amount (4) $ 946 807 Liabilities: Repurchase and securities lending agreements Gross amounts recognized (5) $ 101,516 111,038 Gross amounts offset in consolidated balance sheet (1) (22,762 ) (19,180 ) Net amounts in consolidated balance sheet (6) 78,754 91,858 Collateral pledged but not netted in consolidated balance sheet (7) (78,412 ) (91,709 ) Net amount (8) $ 342 149 (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 $86.4 billion and $102.1 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at March 31, 2020 , and December 31, 2019 , respectively. Also includes securities purchased under long-term resale agreements (generally one year or more) classified in loans, which totaled $19.7 billion and $19.5 billion , at March 31, 2020 , and December 31, 2019 , respectively. (3) Represents the fair value of collateral we have received under enforceable MRAs or MSLAs, limited in the table above to the amount of the recognized asset due from each counterparty. At March 31, 2020 , and December 31, 2019 , we have received total collateral with a fair value of $138.7 billion and $150.9 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 $61.1 billion at March 31, 2020 , and $59.1 billion at December 31, 2019 . (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 in the table above to the amount of the recognized liability owed to each counterparty. At March 31, 2020 , and December 31, 2019 , we have pledged total collateral with a fair value of $103.4 billion and $113.3 billion , respectively, substantially all of which may be sold or repledged by the counterparty. (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) Mar 31, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 50,787 48,161 Securities of U.S. States and political subdivisions 89 104 Federal agency mortgage-backed securities 32,027 44,737 Non-agency mortgage-backed securities 1,263 1,818 Corporate debt securities 10,048 7,126 Asset-backed securities 1,460 1,844 Equity securities 721 1,674 Other 514 705 Total repurchases 96,909 106,169 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 134 163 Corporate debt securities 364 223 Equity securities (1) 4,100 4,481 Other 9 2 Total securities lending 4,607 4,869 Total repurchases and securities lending $ 101,516 111,038 (1) Equity securities are generally exchange traded and represent collateral received from third parties that has been repledged. We received the collateral through either margin lending agreements or 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 March 31, 2020 Repurchase agreements $ 75,413 7,681 10,680 3,135 96,909 Securities lending arrangements 4,392 65 150 — 4,607 Total repurchases and securities lending (1) $ 79,805 7,746 10,830 3,135 101,516 December 31, 2019 Repurchase agreements $ 79,793 17,681 4,825 3,870 106,169 Securities lending arrangements 4,724 — 145 — 4,869 Total repurchases and securities lending (1) $ 84,517 17,681 4,970 3,870 111,038 (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)	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 December 31, 2019 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 $ 187,167 3,715 2,199 182,789 2,595 1,237 Foreign exchange contracts 31,800 231 1,812 32,386 341 1,170 Total derivatives designated as qualifying hedging instruments 3,946 4,011 2,936 2,407 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts 358,717 2,732 1,766 235,810 207 160 Equity contracts 16,614 1,969 106 19,263 1,126 224 Foreign exchange contracts 46,486 1,332 233 26,595 118 286 Credit contracts – protection purchased 499 34 — 1,400 27 — Subtotal 6,067 2,105 1,478 670 Customer accommodation trading and other derivatives: Interest rate contracts 12,578,353 52,162 43,587 11,117,542 21,245 17,969 Commodity contracts 85,629 2,316 6,838 79,737 1,421 1,770 Equity contracts 316,754 11,181 10,248 272,145 7,410 10,240 Foreign exchange contracts 343,627 7,128 7,979 364,469 4,755 4,791 Credit contracts – protection sold 15,035 13 78 12,215 12 65 Credit contracts – protection purchased 25,144 106 15 24,030 69 18 Subtotal 72,906 68,745 34,912 34,853 Total derivatives not designated as hedging instruments 78,973 70,850 36,390 35,523 Total derivatives before netting 82,919 74,861 39,326 37,930 Netting (57,896 ) (59,243 ) (25,123 ) (28,851 ) Total $ 25,023 15,618 14,203 9,079
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 $73.1 billion and $69.2 billion of gross derivative assets and liabilities, respectively, at March 31, 2020 , and $33.7 billion and $33.5 billion , respectively, at December 31, 2019 , with counterparties subject to enforceable master netting arrangements that are eligible for balance sheet netting adjustments. The majority of these amounts are interest rate contracts executed in over-the-counter (OTC) markets. The remaining gross derivative assets and liabilities of $9.8 billion and $5.7 billion , respectively, at March 31, 2020 , and $5.6 billion and $4.4 billion , respectively, at December 31, 2019 , 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. Cash collateral receivables and payables that have not been offset against our derivatives were $4.4 billion and $6.4 billion , respectively, at March 31, 2020 , and $6.3 billion and $1.4 billion , respectively, at December 31, 2019 . 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 OTC markets include bilateral contractual arrangements that are not cleared through a central clearing organization but are typically subject to master netting arrangements. Other derivative contracts that are settled through a central clearing organization whether OTC or exchange-traded, are excluded from that 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) Net amounts Percent exchanged in over-the-counter market March 31, 2020 Derivative assets Interest rate contracts $ 58,609 (39,677 ) 18,932 (1,302 ) 17,630 87 % Commodity contracts 2,316 (1,534 ) 782 (3 ) 779 62 Equity contracts 13,150 (9,929 ) 3,221 (802 ) 2,419 66 Foreign exchange contracts 8,691 (6,660 ) 2,031 (107 ) 1,924 100 Credit contracts – protection sold 13 (13 ) — — — 44 Credit contracts – protection purchased 140 (83 ) 57 (3 ) 54 85 Total derivative assets $ 82,919 (57,896 ) 25,023 (2,217 ) 22,806 Derivative liabilities Interest rate contracts $ 47,552 (42,276 ) 5,276 (995 ) 4,281 87 % Commodity contracts 6,838 (1,689 ) 5,149 (2 ) 5,147 90 Equity contracts 10,354 (7,546 ) 2,808 (164 ) 2,644 56 Foreign exchange contracts 10,024 (7,661 ) 2,363 (99 ) 2,264 100 Credit contracts – protection sold 78 (68 ) 10 — 10 87 Credit contracts – protection purchased 15 (3 ) 12 — 12 69 Total derivative liabilities $ 74,861 (59,243 ) 15,618 (1,260 ) 14,358 December 31, 2019 Derivative assets Interest rate contracts $ 24,047 (14,878 ) 9,169 (445 ) 8,724 95 % Commodity contracts 1,421 (888 ) 533 (2 ) 531 80 Equity contracts 8,536 (5,570 ) 2,966 (69 ) 2,897 65 Foreign exchange contracts 5,214 (3,722 ) 1,492 (22 ) 1,470 100 Credit contracts – protection sold 12 (9 ) 3 — 3 84 Credit contracts – protection purchased 96 (56 ) 40 (1 ) 39 97 Total derivative assets $ 39,326 (25,123 ) 14,203 (539 ) 13,664 Derivative liabilities Interest rate contracts $ 19,366 (16,595 ) 2,771 (545 ) 2,226 94 % Commodity contracts 1,770 (677 ) 1,093 (2 ) 1,091 82 Equity contracts 10,464 (6,647 ) 3,817 (319 ) 3,498 81 Foreign exchange contracts 6,247 (4,866 ) 1,381 (169 ) 1,212 100 Credit contracts – protection sold 65 (60 ) 5 (3 ) 2 98 Credit contracts – protection purchased 18 (6 ) 12 — 12 93 Total derivative liabilities $ 37,930 (28,851 ) 9,079 (1,038 ) 8,041 (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 related to derivative assets were $877 million and $231 million and debit valuation adjustments related to derivative liabilities were $280 million and $100 million at March 31, 2020 , and December 31, 2019 , respectively. Cash collateral totaled $9.8 billion and $11.7 billion , netted against derivative assets and liabilities, respectively, at March 31, 2020 , and $2.9 billion and $6.8 billion , respectively, at December 31, 2019 .
Gains (Losses) Recognized on Fair Value Hedging Relationships	Table 15.3 and Table 15.4 show the net gains (losses) related to derivatives in fair value and cash flow hedging relationships, respectively. Table 15.3: Gains (Losses) Recognized on Fair Value Hedging Relationships Net interest income Noninterest income Total recorded in net income Total recorded in OCI (in millions) Debt securities Mortgage loans held for sale Deposits Long-term debt Other Derivative gains (losses) Derivative gains (losses) Quarter ended March 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 3,472 197 (1,742 ) (1,240 ) 372 N/A 182 Interest contracts: Amounts related to interest settlements on derivatives (46 ) — 70 174 — 198 Recognized on derivatives (1,871 ) (50 ) 530 9,775 — 8,384 — Recognized on hedged items 1,856 50 (511 ) (9,426 ) — (8,031 ) Total gains (losses) (pre-tax) on interest rate contracts (61 ) — 89 523 — 551 — Foreign exchange contracts: Amounts related to interest settlements on derivatives 6 — — (85 ) — (79 ) Recognized on derivatives (1 ) — — 107 (785 ) (679 ) 144 Recognized on hedged items 2 — — (174 ) 764 592 Total gains (losses) (pre-tax) on foreign exchange contracts 7 — — (152 ) (21 ) (166 ) 144 Total gains (losses) (pre-tax) recognized on fair value hedges $ (54 ) — 89 371 (21 ) 385 144 Quarter ended March 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 3,941 152 (2,026 ) (1,927 ) 574 N/A 44 Interest contracts: Amounts related to interest settlements on derivatives 16 — (23 ) (7 ) — (14 ) Recognized on derivatives (814 ) (8 ) 207 1,986 — 1,371 — Recognized on hedged items 817 7 (190 ) (1,947 ) — (1,313 ) Total gains (losses) (pre-tax) on interest rate contracts 19 (1 ) (6 ) 32 — 44 — Foreign exchange contracts: Amounts related to interest settlements on derivatives 10 — — (142 ) — (132 ) Recognized on derivatives (4 ) — — 292 (402 ) (114 ) (26 ) Recognized on hedged items 5 — — (266 ) 391 130 Total gains (losses) (pre-tax) on foreign exchange contracts 11 — — (116 ) (11 ) (116 ) (26 ) Total gains (losses) (pre-tax) recognized on fair value hedges $ 30 (1 ) (6 ) (84 ) (11 ) (72 ) (26 )
Gains (Losses) Recognized on Cash Flow Hedging Relationships	Table 15.4: Gains (Losses) Recognized on Cash Flow Hedging Relationships Net interest Income Total recorded in net income Total recorded in OCI (in millions) Loans Long-term debt Derivative gains (losses) Derivative gains (losses) Quarter ended March 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 10,065 (1,240 ) N/A 182 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (56 ) — (56 ) 56 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (56 ) — (56 ) 56 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (2 ) (2 ) 2 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (20 ) Total gains (losses) (pre-tax) on foreign exchange contracts — (2 ) (2 ) (18 ) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (56 ) (2 ) (58 ) 38 Quarter ended March 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 11,354 (1,927 ) N/A 44 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (78 ) — (78 ) 78 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (78 ) — (78 ) 78 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (1 ) (1 ) 1 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (9 ) Total gains (losses) (pre-tax) on foreign exchange contracts — (1 ) (1 ) (8 ) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (78 ) (1 ) (79 ) 70
Hedged Items in Fair Value Hedging Relationships	Table 15.5 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 15.5: 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 March 31, 2020 Available-for-sale debt securities (5) $ 34,959 2,750 9,567 261 Mortgage loans held for sale 514 24 — — Deposits (41,081 ) (837 ) (35 ) 2 Long-term debt (147,069 ) (15,325 ) (21,214 ) 131 December 31, 2019 Available-for-sale debt securities (5) $ 36,896 1,110 9,486 278 Mortgage loans held for sale 961 (12 ) — — Deposits (43,716 ) (324 ) — — Long-term debt (127,423 ) (5,827 ) (25,750 ) 173 (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 $3.0 billion for debt securities and $(5.0) billion for long-term debt as of March 31, 2020 , and $1.2 billion for debt securities and $(5.2) billion for long-term debt as of December 31, 2019 . (3) The balance includes $649 million and $136 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of March 31, 2020 , and $790 million and $109 million of debt securities and long-term debt cumulative basis adjustments, respectively, as of December 31, 2019 , 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.
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	Table 15.6 shows the net gains (losses) recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 15.6: 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 March 31, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,471 — — 29 2,500 Equity contracts — 1,219 — (28 ) 1,191 Foreign exchange contracts — — — 627 627 Credit contracts — — — 16 16 Subtotal (2) 2,471 1,219 — 644 4,334 Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (3) 553 — (2,463 ) — (1,910 ) Commodity contracts — — 112 — 112 Equity contracts — — 4,749 73 4,822 Foreign exchange contracts — — (557 ) — (557 ) Credit contracts — — 281 — 281 Subtotal 553 — 2,122 73 2,748 Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 3,024 1,219 2,122 717 7,082 Noninterest income (in millions) Mortgage banking Net gains (losses) from equity securities Net gains (losses) from trading activities Other Total Quarter ended March 31, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 811 — — 5 816 Equity contracts — (885 ) — 7 (878 ) Foreign exchange contracts — — — (24 ) (24 ) Credit contracts — — — 15 15 Subtotal 811 (885 ) — 3 (71 ) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 118 — (284 ) — (166 ) Commodity contracts — — 51 — 51 Equity contracts — — (2,149 ) (273 ) (2,422 ) Foreign exchange contracts — — 14 — 14 Credit contracts — — (44 ) — (44 ) Subtotal 118 — (2,412 ) (273 ) (2,567 ) Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 929 (885 ) (2,412 ) (270 ) (2,638 ) (1) Mortgage banking amounts for first quarter 2020 are comprised of gains (losses) of $3.4 billion related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $(929) million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. The corresponding amounts for first quarter 2019 are comprised of gains (losses) of $962 million offset by gains (losses) of $(151) million , respectively.
Sold and Purchased Credit Derivatives	Table 15.7 provides details of sold and purchased credit derivatives. Table 15.7: Sold and Purchased Credit Derivatives Notional amount (in millions) Fair value asset 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 March 31, 2020 Credit default swaps on: Corporate bonds $ 11 11 3,602 825 2,492 1,110 2,753 2020 - 2029 Structured products — 13 37 37 36 1 110 2034 - 2047 Credit protection on: Default swap index 2 1 4,339 1,118 1,577 2,762 5,497 2020 - 2029 Commercial mortgage-backed securities index — 28 318 60 293 25 50 2047 - 2058 Asset-backed securities index — 8 41 41 41 — 1 2045 - 2046 Other — 17 6,698 6,230 — 6,698 12,793 2020 - 2049 Total credit derivatives $ 13 78 15,035 8,311 4,439 10,596 21,204 December 31, 2019 Credit default swaps on: Corporate bonds $ 8 1 2,855 707 1,885 970 2,447 2020 - 2029 Structured products — 25 74 69 63 11 111 2022 - 2047 Credit protection on: Default swap index 1 — 2,542 120 550 1,992 8,105 2020 - 2029 Commercial mortgage-backed securities index 3 26 322 67 296 26 50 2047 - 2058 Asset-backed securities index — 8 41 41 41 — 1 2045 - 2046 Other — 5 6,381 5,738 — 6,381 11,881 2020 - 2049 Total credit derivatives $ 12 65 12,215 6,742 2,835 9,380 22,595
Credit-Risk Contingent Features	Table 15.8 illustrates our exposure to such derivatives with credit-risk contingent features, collateral we have posted, and the additional collateral we would be required to post if the credit rating of our debt was downgraded below investment grade. Table 15.8: Credit-Risk Contingent Features (in billions) Mar 31, Dec 31, Net derivative liabilities with credit-risk contingent features $ 16.1 10.4 Collateral posted 13.9 9.1 Additional collateral to be posted upon a below investment grade credit rating (1) 2.2 1.3 (1) Any credit rating below investment grade requires us to post the maximum amount of collateral.

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
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 classified within the fair value hierarchy. Unadjusted fair value measurements obtained from brokers and fair value measurements obtained from brokers or third-party pricing services that we have adjusted to determine the fair value are excluded from Table 16.1 . The unadjusted fair value measurements obtained from brokers for available-for-sale debt securities were $18 million in Level 2 assets and $123 million in Level 3 assets at March 31, 2020 , and $45 million and $126 million at December 31, 2019 , respectively. Table 16.1: Fair Value Measurements obtained from Third-Party Pricing Services March 31, 2020 December 31, 2019 (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Trading debt securities 2,027 357 — 634 329 — Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 11,036 — — 13,460 1,500 — Securities of U.S. states and political subdivisions — 37,793 66 — 39,868 34 Mortgage-backed securities — 163,329 185 — 167,172 42 Other debt securities (1) — 34,603 743 — 38,067 650 Total available-for-sale debt securities 11,036 235,725 994 13,460 246,607 726 Marketable equity securities — 98 — — 110 — Derivative assets 41 6 — 12 1 — Derivative liabilities (25 ) (8 ) — (11 ) (3 ) — (1) Includes corporate debt securities, collateralized loan and other debt obligations, asset-backed securities, and other debt securities.
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 March 31, 2020 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 35,069 4,638 — — 39,707 Securities of U.S. states and political subdivisions — 2,972 — — 2,972 Collateralized loan obligations — 472 154 — 626 Corporate debt securities — 12,392 34 — 12,426 Mortgage-backed securities — 23,738 177 — 23,915 Asset-backed securities — 742 24 — 766 Other trading debt securities — 13 — — 13 Total trading debt securities 35,069 44,967 389 — 80,425 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 11,036 — — — 11,036 Securities of U.S. states and political subdivisions — 37,793 351 — 38,144 Mortgage-backed securities: Federal agencies — 160,214 — — 160,214 Residential — 745 31 — 776 Commercial — 3,500 154 — 3,654 Total mortgage-backed securities — 164,459 185 — 164,644 Corporate debt securities 33 4,692 1,130 — 5,855 Collateralized loan and other debt obligations — 24,532 636 — 25,168 Asset-backed securities: Automobile loans and leases — 884 — — 884 Home equity loans — 12 — — 12 Other asset-backed securities — 3,380 110 — 3,490 Total asset-backed securities — 4,276 110 — 4,386 Other debt securities — 1,996 — — 1,996 Total available-for-sale debt securities 11,069 237,748 2,412 (2) — 251,229 Mortgage loans held for sale — 13,508 3,157 — 16,665 Loans held for sale — 1,654 19 — 1,673 Loans — — 160 — 160 Mortgage servicing rights (residential) — — 8,126 — 8,126 Derivative assets: Interest rate contracts 152 57,695 762 — 58,609 Commodity contracts — 2,301 15 — 2,316 Equity contracts 4,418 7,371 1,361 — 13,150 Foreign exchange contracts 41 8,626 24 — 8,691 Credit contracts — 76 77 — 153 Netting — — — (57,896 ) (57,896 ) Total derivative assets 4,611 76,069 2,239 (57,896 ) 25,023 Equity securities – excluding securities at NAV: Marketable 20,983 295 3 — 21,281 Nonmarketable — 15 6,751 — 6,766 Total equity securities 20,983 310 6,754 — 28,047 Total assets included in the fair value hierarchy $ 71,732 374,256 23,256 (57,896 ) 411,348 Equity securities at NAV (3) 129 Total assets recorded at fair value 411,477 Derivative liabilities: Interest rate contracts $ (158 ) (47,317 ) (77 ) — (47,552 ) Commodity contracts — (6,779 ) (59 ) — (6,838 ) Equity contracts (4,600 ) (4,610 ) (1,144 ) — (10,354 ) Foreign exchange contracts (25 ) (9,969 ) (30 ) — (10,024 ) Credit contracts — (63 ) (30 ) — (93 ) Netting — — — 59,243 59,243 Total derivative liabilities (4,783 ) (68,738 ) (1,340 ) 59,243 (15,618 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (9,881 ) (103 ) — — (9,984 ) Mortgage-backed securities — (92 ) — — (92 ) Corporate debt securities — (5,520 ) — — (5,520 ) Equity securities (1,984 ) — — — (1,984 ) Other securities — (23 ) — — (23 ) Total short sale liabilities (11,865 ) (5,738 ) — — (17,603 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (16,648 ) (74,476 ) (1,342 ) 59,243 (33,223 ) (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) Largely 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. (3) 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, 2019 Trading debt securities: Securities of U.S. Treasury and federal agencies $ 32,335 4,382 — — 36,717 Securities of U.S. states and political subdivisions — 2,434 — — 2,434 Collateralized loan obligations — 555 183 — 738 Corporate debt securities — 11,006 38 — 11,044 Mortgage-backed securities — 27,712 — — 27,712 Asset-backed securities — 1,081 — — 1,081 Other trading debt securities — 5 2 — 7 Total trading debt securities 32,335 47,175 223 — 79,733 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 13,460 1,500 — — 14,960 Securities of U.S. states and political subdivisions — 39,924 413 — 40,337 Mortgage-backed securities: Federal agencies — 162,453 — — 162,453 Residential — 827 — — 827 Commercial — 3,892 42 — 3,934 Total mortgage-backed securities — 167,172 42 — 167,214 Corporate debt securities 37 6,159 367 — 6,563 Collateralized loan and other debt obligations — 29,055 640 — 29,695 Asset-backed securities: Automobile loans and leases — 951 — — 951 Home equity loans — — — — — Other asset-backed securities — 3,635 103 — 3,738 Total asset-backed securities — 4,586 103 — 4,689 Other debt securities — 1 — — 1 Total available-for-sale debt securities 13,497 248,397 1,565 (2) — 263,459 Mortgage loans held for sale — 15,408 1,198 — 16,606 Loans held for sale — 956 16 — 972 Loans — — 171 — 171 Mortgage servicing rights (residential) — — 11,517 — 11,517 Derivative assets: Interest rate contracts 26 23,792 229 — 24,047 Commodity contracts — 1,413 8 — 1,421 Equity contracts 2,946 4,135 1,455 — 8,536 Foreign exchange contracts 12 5,197 5 — 5,214 Credit contracts — 49 59 — 108 Netting — — — (25,123 ) (25,123 ) Total derivative assets 2,984 34,586 1,756 (25,123 ) 14,203 Equity securities – excluding securities at NAV: Marketable 33,702 216 3 — 33,921 Nonmarketable — 22 7,847 — 7,869 Total equity securities 33,702 238 7,850 — 41,790 Total assets included in the fair value hierarchy $ 82,518 346,760 24,296 (25,123 ) 428,451 Equity securities at NAV (3) 146 Total assets recorded at fair value 428,597 Derivative liabilities: Interest rate contracts $ (23 ) (19,328 ) (15 ) — (19,366 ) Commodity contracts — (1,746 ) (24 ) — (1,770 ) Equity contracts (2,011 ) (6,729 ) (1,724 ) — (10,464 ) Foreign exchange contracts (11 ) (6,213 ) (23 ) — (6,247 ) Credit contracts — (53 ) (30 ) — (83 ) Netting — — — 28,851 28,851 Total derivative liabilities (2,045 ) (34,069 ) (1,816 ) 28,851 (9,079 ) Short sale liabilities: Securities of U.S. Treasury and federal agencies (9,035 ) (31 ) — — (9,066 ) Mortgage-backed securities — (2 ) — — (2 ) Corporate debt securities — (5,915 ) — — (5,915 ) Equity securities (2,447 ) — — — (2,447 ) Other securities — — — — — Total short sale liabilities (11,482 ) (5,948 ) — — (17,430 ) Other liabilities — — (2 ) — (2 ) Total liabilities recorded at fair value $ (13,527 ) (40,017 ) (1,818 ) 28,851 (26,511 ) (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) 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. (3) 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 Level 3 Fair Value Assets and Liabilities on a Recurring Basis	The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the quarter ended March 31, 2020 , are presented in Table 16.3 . Table 16.3: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended March 31, 2020 Total net gains (losses) included in Purchases, sales, issuances and settlements, net (1) Net unrealized gains (losses) related to assets and liabilities held at period end included in (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 Net income (4) Other compre- hensive income Quarter ended March 31, 2020 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — — — — — Collateralized loan obligations 183 (69 ) — 19 21 — 154 (69 ) — Corporate debt securities 38 (4 ) — 3 — (3 ) 34 (3 ) — Mortgage-backed securities — (42 ) — 171 48 — 177 (42 ) — Asset-backed securities — (2 ) — (5 ) 31 — 24 (2 ) — Other trading debt securities 2 (1 ) — (1 ) — — — (1 ) — Total trading debt securities 223 (118 ) — 187 100 (3 ) 389 (117 ) (5) — Available-for-sale debt securities: Securities of U.S. states and political subdivisions 413 — (2 ) (21 ) 32 (71 ) 351 — — Mortgage-backed securities: Residential — (5 ) (3 ) 26 13 — 31 (5 ) (3 ) Commercial 42 3 (13 ) (2 ) 124 — 154 — (12 ) Total mortgage-backed securities 42 (2 ) (16 ) 24 137 — 185 (5 ) (15 ) Corporate debt securities 367 (52 ) (16 ) — 831 — 1,130 (54 ) (16 ) Collateralized loan and other debt obligations 640 3 (53 ) (12 ) 58 — 636 — (53 ) Asset-backed securities: Other asset-backed securities 103 — (4 ) (18 ) 29 — 110 — (4 ) Total asset-backed securities 103 — (4 ) (18 ) 29 — 110 — (4 ) Total available-for-sale debt securities 1,565 (51 ) (91 ) (27 ) 1,087 (71 ) 2,412 (59 ) (6 ) (88 ) Mortgage loans held for sale 1,198 (61 ) — 700 1,322 (2 ) 3,157 (64 ) (7 ) — Loans held for sale 16 (2 ) — (2 ) 7 — 19 1 — Loans 171 — — (11 ) — — 160 (2 ) (7 ) — Mortgage servicing rights (residential) (8) 11,517 (3,821 ) — 430 — — 8,126 (3,257 ) (7 ) — Net derivative assets and liabilities: Interest rate contracts 214 744 — (273 ) — — 685 531 — Commodity contracts (16 ) (80 ) — 58 (6 ) — (44 ) (27 ) — Equity contracts (269 ) 430 — 73 (10 ) (7 ) 217 451 — Foreign exchange contracts (18 ) 10 — 2 — — (6 ) (2 ) — Credit contracts 29 15 — 3 — — 47 17 — Total derivative contracts (60 ) 1,119 — (137 ) (16 ) (7 ) 899 970 (9 ) — Equity securities: Marketable 3 — — — — — 3 — — Nonmarketable 7,847 (1,101 ) — — 7 (2 ) 6,751 (1,103 ) — Total equity securities 7,850 (1,101 ) — — 7 (2 ) 6,754 (1,103 ) (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) 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 from trading activities in the income statement. (6) Included in net gains from debt securities and provision for credit losses - 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 income, net gains from trading activities and from equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement. The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for quarter ended March 31, 2019 , are presented in Table 16.5 . Table 16.5: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis – Quarter ended March 31, 2019 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 March 31, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ 3 — — (2 ) — (1 ) — — Collateralized loan obligations 237 (3 ) — 41 — — 275 1 Corporate debt securities 34 2 — 4 1 — 41 2 Other trading debt securities 16 (1 ) — — — — 15 — Total trading debt securities 290 (2 ) — 43 1 (1 ) 331 3 (5) Available-for-sale debt securities: Securities of U.S. states and political subdivisions 444 — 3 23 — — 470 — Mortgage-backed securities: Residential — — — — — — — — Commercial 41 — — — — — 41 — Total mortgage-backed securities 41 — — — — — 41 — Corporate debt securities 370 1 4 2 — — 377 — Collateralized loan and other debt obligations 800 6 (4 ) (47 ) — — 755 — Asset-backed securities: Other asset-backed securities 389 — (1 ) (26 ) — — 362 — Total asset-backed securities 389 — (1 ) (26 ) — — 362 — Total available-for-sale debt securities 2,044 7 2 (48 ) — — 2,005 — (6) Mortgage loans held for sale 997 15 — (66 ) 56 (4 ) 998 15 (7) Loans held for sale 60 — — 11 37 (37 ) 71 — Loans 244 — — (19 ) — — 225 (2 ) (7) Mortgage servicing rights (residential) (8) 14,649 (1,373 ) — 60 — — 13,336 (891 ) (7) Net derivative assets and liabilities: Interest rate contracts 25 187 — (111 ) — — 101 132 Commodity contracts 4 (51 ) — 27 2 — (18 ) (15 ) Equity contracts (17 ) (119 ) — (3 ) 9 (32 ) (162 ) (114 ) Foreign exchange contracts (26 ) 7 — 3 — — (16 ) 11 Credit contracts 35 8 — 6 — — 49 13 Total derivative contracts 21 32 — (78 ) 11 (32 ) (46 ) 27 (9) Equity securities: Nonmarketable 5,468 926 — (1 ) — (12 ) 6,381 926 Total equity securities 5,468 926 — (1 ) — (12 ) 6,381 926 (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 from trading activities in the income statement. (6) Included in net gains from 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 income, net gains from trading activities and from equity securities and other noninterest income in the income statement. (10) Included in net gains (losses) from equity securities in the income statement.
Gross Purchases, Sales, Issuances and Settlements - Level 3	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 quarter ended March 31, 2020 . Table 16.4: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended March 31, 2020 (in millions) Purchases Sales Issuances Settlements Net Quarter ended March 31, 2020 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — — — Collateralized loan obligations 85 (56 ) — (10 ) 19 Corporate debt securities 10 (7 ) — — 3 Mortgage-backed securities 195 (24 ) — — 171 Asset-backed securities — (5 ) — — (5 ) Other trading debt securities — (1 ) — — (1 ) Total trading debt securities 290 (93 ) — (10 ) 187 Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — — (21 ) (21 ) Mortgage-backed securities: Residential 26 — — — 26 Commercial — — — (2 ) (2 ) Total mortgage-backed securities 26 — — (2 ) 24 Corporate debt securities — — — — — Collateralized loan and other debt obligations — — — (12 ) (12 ) Asset-backed securities: Other asset-backed securities — (5 ) — (13 ) (18 ) Total asset-backed securities — (5 ) — (13 ) (18 ) Total available-for-sale debt securities 26 (5 ) — (48 ) (27 ) Mortgage loans held for sale 23 (69 ) 843 (97 ) 700 Loans held for sale — (1 ) — (1 ) (2 ) Loans 1 — 2 (14 ) (11 ) Mortgage servicing rights (residential) (1) — (32 ) 461 1 430 Net derivative assets and liabilities: Interest rate contracts — — — (273 ) (273 ) Commodity contracts — — — 58 58 Equity contracts — — — 73 73 Foreign exchange contracts — — — 2 2 Credit contracts 6 (3 ) — — 3 Total derivative contracts 6 (3 ) — (140 ) (137 ) Equity securities: Marketable — — — — — Nonmarketable — — — — — Total equity securities — — — — — Other liabilities — — — — — (1) For more information on the changes in mortgage servicing rights, see Note 11 (Mortgage Banking Activities). 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 quarter ended March 31, 2019 . Table 16.6: Gross Purchases, Sales, Issuances and Settlements – Level 3 – Quarter ended March 31, 2019 (in millions) Purchases Sales Issuances Settlements Net Quarter ended March 31, 2019 Trading debt securities: Securities of U.S. states and political subdivisions $ — — — (2 ) (2 ) Collateralized loan obligations 130 (87 ) — (2 ) 41 Corporate debt securities 5 (1 ) — — 4 Other trading debt securities — — — — — Total trading debt securities 135 (88 ) — (4 ) 43 Available-for-sale debt securities: Securities of U.S. states and political subdivisions — — 49 (26 ) 23 Mortgage-backed securities: Residential — — — — — Commercial — — — — — Total mortgage-backed securities — — — — — Corporate debt securities 3 — — (1 ) 2 Collateralized loan and other debt obligations — — — (47 ) (47 ) Asset-backed securities: Other asset-backed securities — (3 ) 66 (89 ) (26 ) Total asset-backed securities — (3 ) 66 (89 ) (26 ) Total available-for-sale debt securities 3 (3 ) 115 (163 ) (48 ) Mortgage loans held for sale 16 (93 ) 46 (35 ) (66 ) Loans held for sale 12 (1 ) — — 11 Loans 2 — 3 (24 ) (19 ) Mortgage servicing rights (residential) (1) — (281 ) 341 — 60 Net derivative assets and liabilities: Interest rate contracts — — — (111 ) (111 ) Commodity contracts — — — 27 27 Equity contracts — — — (3 ) (3 ) Foreign exchange contracts — — — 3 3 Credit contracts 6 — — — 6 Total derivative contracts 6 — — (84 ) (78 ) 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).
Valuation Techniques - Recurring Basis	Table 16.7 and Table 16.8 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 inherent in the 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 internal models 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. Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. For information on how changes in significant unobservable inputs affect the fair values of Level 3 assets and liabilities, see Note 19 (Fair Values of Assets and Liabilities) in our 2019 Form 10-K. Table 16.7: Valuation Techniques – Recurring Basis – Marc h 31, 2020 ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique(s) Significant Unobservable Inputs Range of Inputs Positive (Negative) Weighted Average March 31, 2020 Trading and available-for-sale debt securities: Securities of U.S. states and political subdivisions: Government, healthcare and other revenue bonds $ 285 Discounted cash flow Discount rate 1.6 - 5.4 % 2.3 66 Vendor priced Collateralized loan and other debt obligations 154 Market comparable pricing Comparability adjustment (27.8 ) - 137.9 6.8 636 Vendor priced Corporate debt securities 865 Discounted cash flow Discount rate 4.0 - 14.9 5.5 103 Market comparable pricing Comparability adjustment (32.7 ) - 14.2 (8.3 ) 196 Vendor priced Mortgage-backed securities 177 Market comparable pricing Comparability adjustment (60.6 ) - 26.2 (4.6 ) 185 Vendor priced Asset-backed securities: Diversified payment rights (1) 76 Discounted cash flow Discount rate 2.5 - 4.7 3.7 Other commercial and consumer 24 Market comparable pricing Comparability adjustment (7.0 ) - (5.6 ) (5.8 ) 34 Vendor priced Mortgage loans held for sale (residential) 952 Discounted cash flow Default rate 0.0 - 18.2 1.2 Discount rate 2.7 - 5.5 4.7 Loss severity 0.0 - 32.0 22.8 Prepayment rate 7.3 - 18.2 12.8 2,205 Market comparable pricing Comparability adjustment (53.3 ) - 0.0 (6.3 ) Loans (2) 160 Discounted cash flow Discount rate 3.9 - 4.4 4.2 Default rate 0.0 23.1 0.8 Prepayment rate 7.8 - 100.0 85.0 Loss severity 0.0 - 39.7 14.2 Mortgage servicing rights (residential) 8,126 Discounted cash flow Cost to service per loan (3) $ 59 - 622 112 Discount rate 6.3 - 9.4 % 7.1 Prepayment rate (4) 11.3 - 26.6 15.7 Net derivative assets and (liabilities): Interest rate contracts 255 Discounted cash flow Default rate 0.0 - 5.0 1.6 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 14.8 65 Market comparable pricing Comparability adjustment (14.1 ) (8.9 ) (11.8 ) Interest rate contracts: derivative loan commitments 365 Discounted cash flow Fall-out factor 1.0 - 99.0 28.0 Initial-value servicing (37.1 ) - 134.0 bps 35.0 Equity contracts 123 Discounted cash flow Conversion factor (9.0 ) - 0.0 % (7.7 ) Weighted average life 0.3 - 2.8 yrs 1.4 94 Option model Correlation factor (77.0 ) - 99.0 % 37.4 Volatility factor 6.5 - 92.9 26.3 Credit contracts 3 Market comparable pricing Comparability adjustment (78.9 ) - 135.2 (13.6 ) 44 Option model Credit spread 0.1 - 49.2 2.7 Loss severity 12.0 - 60.0 45.6 Nonmarketable equity securities 6,751 Market comparable pricing Comparability adjustment 3.5 - 22.9 14.4 Insignificant Level 3 assets, net of liabilities (30 ) Total level 3 assets, net of liabilities $ 21,914 (5) (1) Securities backed by specified sources of current and future receivables generated from non-US originators. (2) Consists of reverse mortgage loans. (3) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $59 - $229 . (4) 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. (5) Consists of total Level 3 assets of $23.3 billion and total Level 3 liabilities of $1.3 billion , before netting of derivative balances. Table 16.8: Valuation Techniques – Recurring Basis – Dece mber 31, 2019 ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique(s) Significant Unobservable Inputs Range of Inputs Positive (Negative) Weighted Average December 31, 2019 Trading and available-for-sale debt securities: Securities of U.S. states and political subdivisions: Government, healthcare and other revenue bonds $ 379 Discounted cash flow Discount rate 1.3 - 5.4 % 2.4 34 Vendor priced Collateralized loan and other debt obligations 183 Market comparable pricing Comparability adjustment (15.0 ) - 19.2 1.3 640 Vendor priced Corporate debt securities 220 Discounted cash flow Discount rate 3.2 14.9 9.2 60 Market comparable pricing Comparability adjustment (19.7 ) 14.0 (4.4 ) 125 Vendor priced Asset-backed securities: Diversified payment rights (1) 92 Discounted cash flow Discount rate 2.3 - 3.1 2.8 Other commercial and consumer 11 Vendor priced Mortgage loans held for sale (residential) 1,183 Discounted cash flow Default rate 0.0 - 15.5 0.7 Discount rate 3.0 - 5.6 4.5 Loss severity 0.0 - 43.5 21.7 Prepayment rate 5.7 - 15.4 7.8 15 Market comparable pricing Comparability adjustment (56.3 ) - (6.3 ) (40.3 ) Loans (2) 171 Discounted cash flow Discount rate 3.9 - 4.3 4.1 Prepayment rate 6.0 - 100.0 85.6 Loss severity 0.0 - 36.5 14.1 Mortgage servicing rights (residential) 11,517 Discounted cash flow Cost to service per loan (3) $ 61 - 495 102 Discount rate 6.0 - 13.6 % 7.2 Prepayment rate (4) 9.6 - 24.4 11.9 Net derivative assets and (liabilities): Interest rate contracts 146 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 68 Discounted cash flow Fall-out factor 1.0 - 99.0 16.7 Initial-value servicing (32.2 ) - 149.0 bps 36.4 Equity contracts 147 Discounted cash flow Conversion factor (8.8 ) - 0.0 % (7.7 ) Weighted average life 0.5 - 3.0 yrs 1.5 (416 ) Option model Correlation factor (77.0 ) - 99.0 % 23.8 Volatility factor 6.8 - 100.0 18.7 Credit contracts 2 Market comparable pricing Comparability adjustment (56.1 ) - 10.8 (16.0 ) 27 Option model Credit spread 0.0 - 17.8 0.8 Loss severity 12.0 - 60.0 45.6 Nonmarketable equity securities 7,847 Market comparable pricing Comparability adjustment (20.2 ) - (4.2 ) (14.6 ) Insignificant Level 3 assets, net of liabilities 27 Total level 3 assets, net of liabilities $ 22,478 (5) (1) Securities backed by specified sources of current and future receivables generated from non-U.S. originators. (2) Consists of reverse mortgage loans. (3) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $61 - $231 . (4) 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. (5) Consists of total Level 3 assets of $24.3 billion and total Level 3 liabilities of $1.8 billion , before netting of derivative balances.
Fair Value on a Nonrecurring Basis	Table 16.9 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 March 31, 2020 , and December 31, 2019 , and for which a nonrecurring fair value adjustment was recorded during the three months ended March 31, 2020 , and year ended December 31, 2019 . Table 16.10 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 16.9: Fair Value on a Nonrecurring Basis March 31, 2020 December 31, 2019 (in millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Mortgage loans held for sale (1) $ — 1,450 2,868 4,318 — 2,034 3,803 5,837 Loans held for sale — 161 — 161 — 5 — 5 Loans: Commercial — 207 — 207 — 280 — 280 Consumer — 103 — 103 — 213 1 214 Total loans — 310 — 310 — 493 1 494 Nonmarketable equity securities — 639 844 1,483 — 1,308 173 1,481 Other assets — 209 390 599 — 359 27 386 Total assets at fair value on a nonrecurring basis $ — 2,769 4,102 6,871 — 4,199 4,004 8,203 (1) Consists of commercial mortgages and residential real estate 1-4 family first mortgage loans.
Changes in Value of Assets with Nonrecurring Fair Value Adjustment	Table 16.10: Change in Value of Assets with Nonrecurring Fair Value Adjustment Quarter ended March 31, (in millions) 2020 2019 Mortgage loans held for sale $ (38 ) 20 Loans held for sale (1 ) — Loans: Commercial (95 ) (74 ) Consumer (71 ) (79 ) Total loans (166 ) (153 ) Nonmarketable equity securities (424 ) 149 Other assets (334 ) (18 ) Total $ (963 ) (2 )
Valuation Techniques - Nonrecurring Basis	Table 16.11 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of largely 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 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 16.11: Valuation Techniques – Nonrecurring Basis ($ in millions) Fair Value Level 3 Valuation Technique(s) (1) Significant Unobservable Inputs (1) Range of Inputs Positive (Negative) Weighted Average (2) March 31, 2020 Residential mortgage loans held for sale $ 2,868 (3) Discounted cash flow Default rate (4) 0.4 — 51.3 % 7.2 % Discount rate 1.5 — 8.7 4.1 Loss severity 0.5 — 72.1 16.2 Prepayment rate (5) 5.0 — 100.0 23.8 Nonmarketable equity securities (6) 658 Market comparable pricing Multiples 0.1x — 11.6x 4.9x 348 Market comparable pricing Comparability adjustment (100.0 ) — (6.0 )% (45.5 )% 226 Other Company risk factor (100.0 ) — (20.0 ) (40.9 ) Insignificant level 3 assets 2 Total $ 4,102 December 31, 2019 Residential mortgage loans held for sale $ 3,803 (3) Discounted cash flow Default rate (4) 0.3 — 48.3 % 4.6 % Discount rate 1.5 — 9.4 4.3 Loss severity 0.4 — 100.0 23.4 Prepayment rate (5) 4.8 — 100.0 23.2 Insignificant level 3 assets 201 Total $ 4,004 (1) Refer to Note 19 (Fair Value of Assets and Liabilities) in our 2019 Form 10-K for a definition of the valuation technique(s) and significant unobservable inputs used in the valuation of residential mortgage loans held for sale. (2) For residential MLHFS, weighted averages are calculated using the outstanding unpaid principal balance of the loans. (3) Consists of approximately $1.3 billion of government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitizations at both March 31, 2020 and December 31, 2019 , respectively, and $1.6 billion and $2.5 billion , 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. (6) Includes $390 million of private equity and venture capital investments in consolidated portfolio companies classified in other assets on the balance sheet.
Fair Value Option	Table 16.12 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 16.12: Fair Value Option March 31, 2020 December 31, 2019 (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 $ 16,665 16,096 569 16,606 16,279 327 Nonaccrual loans 131 155 (24 ) 133 157 (24 ) Loans 90 days or more past due and still accruing 10 13 (3 ) 8 10 (2 ) Loans held for sale: Total loans 1,673 1,804 (131 ) 972 1,020 (48 ) Nonaccrual loans 17 30 (13 ) 21 29 (8 ) Loans: Total loans 160 189 (29 ) 171 201 (30 ) Nonaccrual loans 123 151 (28 ) 129 159 (30 )
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 16.13 by income statement line item. Amounts recorded as interest income are excluded from Table 16.13 . Table 16.13: Fair Value Option – Changes in Fair Value Included in Earnings 2020 2019 (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 March 31, Mortgage loans held for sale $ 348 — — 214 — — Loans held for sale — (13 ) — — 14 1 Loans — — — — — —
Fair Value Option, Gains/Losses Attributable to Instrument Specific Credit Risk	Table 16.14 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 16.14: Fair Value Option – Gains/Losses Attributable to Instrument-Specific Credit Risk Quarter ended March 31, (in millions) 2020 2019 Gains (losses) attributable to instrument-specific credit risk: Mortgage loans held for sale (182 ) (4 ) Loans held for sale (12 ) 14 Total (194 ) 10
Fair Value, Estimates for Financial Instruments	Table 16.15 presents a summary of fair value estimates for financial instruments that are not carried at fair value on a recurring basis. Some financial instruments are excluded from scope of this table, such as certain insurance contracts and leases. This table also excludes assets and liabilities that are not financial instruments such as the value of the long-term relationships with our deposit, credit card and trust customers, MSRs, premises and equipment, goodwill and deferred taxes. Loan commitments, standby letters of credit and commercial and similar letters of credit are not included in Table 16.15 . A reasonable estimate of the fair value of these instruments is the carrying value of deferred fees plus the allowance for unfunded credit commitments, which totaled $853 million and $1.0 billion at March 31, 2020 and December 31, 2019 , respectively. 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 16.15: Fair Value Estimates for Financial Instruments Estimated fair value (in millions) Carrying amount Level 1 Level 2 Level 3 Total March 31, 2020 Financial assets Cash and due from banks (1) $ 22,738 22,738 — — 22,738 Interest-earning deposits with banks (1) 128,071 127,831 240 — 128,071 Federal funds sold and securities purchased under resale agreements (1) 86,465 — 86,465 — 86,465 Held-to-maturity debt securities, net 169,909 50,691 126,030 841 177,562 Mortgage loans held for sale 5,130 — 2,285 3,392 5,677 Loans held for sale 210 — 210 — 210 Loans, net (2) 979,449 — 53,806 922,616 976,422 Nonmarketable equity securities (cost method) 4,512 — — 4,548 4,548 Total financial assets $ 1,396,484 201,260 269,036 931,397 1,401,693 Financial liabilities Deposits (3) $ 110,841 — 82,565 28,732 111,297 Short-term borrowings 92,289 — 92,289 — 92,289 Long-term debt (4) 237,311 — 226,294 1,921 228,215 Total financial liabilities $ 440,441 — 401,148 30,653 431,801 December 31, 2019 Financial assets Cash and due from banks (1) $ 21,757 21,757 — — 21,757 Interest-earning deposits with banks (1) 119,493 119,257 236 — 119,493 Federal funds sold and securities purchased under resale agreements (1) 102,140 — 102,140 — 102,140 Held-to-maturity debt securities 153,933 46,138 109,933 789 156,860 Mortgage loans held for sale 6,736 — 2,939 4,721 7,660 Loans held for sale 5 — 5 — 5 Loans, net (2) 933,042 — 54,125 891,714 945,839 Nonmarketable equity securities (cost method) 4,790 — — 4,823 4,823 Total financial assets $ 1,341,896 187,152 269,378 902,047 1,358,577 Financial liabilities Deposits (3) $ 118,849 — 87,279 31,858 119,137 Short-term borrowings 104,512 — 104,513 — 104,513 Long-term debt (4) 228,159 — 231,332 1,720 233,052 Total financial liabilities $ 451,520 — 423,124 33,578 456,702 (1) Amounts consist of financial instruments for which carrying value approximates fair value. (2) Excludes lease financing with a carrying amount of $19.0 billion and $19.5 billion at March 31, 2020 and December 31, 2019 , respectively. (3) Excludes deposit liabilities with no defined or contractual maturity of $1.3 trillion and $1.2 trillion at March 31, 2020 and December 31, 2019 , respectively. (4) Excludes capital lease obligations under capital leases of $31 million and $32 million at March 31, 2020 and December 31, 2019 , respectively.

Preferred Stock (Tables)

Preferred Stock (Tables)	3 Months Ended
	Mar. 31, 2020
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. All classes of preferred stock, except the Dividend Equalization Preferred Shares and the ESOP Cumulative Convertible Preferred Stock, qualify as Tier 1 capital. Table 17.1: Preferred Stock Shares March 31, 2020 December 31, 2019 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) — — 1,000 3,500,000 Series L 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock (3) 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 (4) 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 Series Z 4.750% Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,500 — — ESOP Cumulative Convertible Preferred Stock (5) — 1,071,418 — 1,071,418 Total 5,832,228 9,251,728 (1) Preferred Stock, Series I, 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 London Interbank Offered Rate (LIBOR) plus 0.93% and 5.56975%. (2) Floating rate for Preferred Stock, Series K, is three-month LIBOR plus 3.77%. In first quarter 2020, the remaining $1.8 billion of Preferred Stock, Series K, was redeemed. (3) Preferred Stock, Series L, may be converted at any time, at the option of the holder, into 6.3814 shares of our common stock, plus cash in lieu of fractional shares, subject to anti-dilution adjustments. (4) In first quarter 2020, $669 million of Preferred Stock, Series T, was redeemed. (5) See the ESOP Cumulative Convertible Preferred Stock section in this Note for additional information about the liquidation preference. Table 17.2: Preferred Stock – Shares Issued and Carrying Value March 31, 2020 December 31, 2019 (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) Floating Class A Preferred Stock 25,010 2,501 2,501 — 25,010 2,501 2,501 — Series K (2) Floating Non-Cumulative Perpetual Class A Preferred Stock — — — — 1,802,000 1,802 1,546 256 Series L (3) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 3,967,995 3,968 3,200 768 3,967,995 3,968 3,200 768 Series N 5.20% Non-Cumulative Perpetual Class A Preferred Stock 30,000 750 750 — 30,000 750 750 — Series O 5.125% Non-Cumulative Perpetual Class A Preferred Stock 26,000 650 650 — 26,000 650 650 — Series P 5.25% Non-Cumulative Perpetual Class A Preferred Stock 25,000 625 625 — 25,000 625 625 — Series Q 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 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 33,600 840 840 — 33,600 840 840 — Series S 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 (4) 6.00% Non-Cumulative Perpetual Class A Preferred Stock 5,280 131 131 — 32,000 800 800 — Series U 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 6.00% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series W 5.70% Non-Cumulative Perpetual Class A Preferred Stock 40,000 1,000 1,000 — 40,000 1,000 1,000 — Series X 5.50% Non-Cumulative Perpetual Class A Preferred Stock 46,000 1,150 1,150 — 46,000 1,150 1,150 — Series Y 5.625% Non-Cumulative Perpetual Class A Preferred Stock 27,600 690 690 — 27,600 690 690 — Series Z 4.750% Non-Cumulative Perpetual Class A Preferred Stock 80,500 2,013 2,013 — — — — — ESOP Cumulative Convertible Preferred Stock 1,071,418 1,072 1,072 — 1,071,418 1,072 1,072 — Total 5,743,949 $ 22,115 21,347 768 7,492,169 $ 22,573 21,549 1,024 (1) Floating rate for Preferred Stock, Series I, 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%. In first quarter 2020, the remaining $1.8 billion of Preferred Stock, Series K, was redeemed. (3) Preferred Stock, Series L, may be converted at any time, at the option of the holder, into 6.3814 shares of our common stock, plus cash in lieu of fractional shares, subject to anti-dilution adjustments. (4) In first quarter 2020, $669 million of Preferred Stock, Series T, was redeemed.
ESOP Preferred Stock	Table 17.3: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Mar 31, Dec 31, Mar 31, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 254,945 254,945 255 255 7.00 % 8.00 % 2017 192,210 192,210 192 192 7.00 8.00 2016 197,450 197,450 198 198 9.30 10.30 2015 116,784 116,784 117 117 8.90 9.90 2014 136,151 136,151 136 136 8.70 9.70 2013 97,948 97,948 98 98 8.50 9.50 2012 49,134 49,134 49 49 10.00 11.00 2011 26,796 26,796 27 27 9.00 10.00 Total ESOP Preferred Stock (1) 1,071,418 1,071,418 $ 1,072 1,072 Unearned ESOP shares (2) $ (1,143 ) (1,143 ) (1) At March 31, 2020, and December 31, 2019, additional paid-in capital included $71 million and $71 million , respectively, related to ESOP preferred stock. (2) 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)	3 Months Ended
	Mar. 31, 2020
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 reporting process, see Note 22 (Operating Segments). Table 18.1 : Revenue by Operating Segment Quarter ended Mar 31, Community Banking Wholesale Banking Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Net interest income (1) $ 6,787 7,248 4,136 4,534 867 1,101 (478 ) (572 ) 11,312 12,311 Noninterest income: Service charges on deposit accounts 700 610 508 483 5 4 (4 ) (3 ) 1,209 1,094 Trust and investment fees: Brokerage advisory, commissions and other fees 518 449 90 78 2,397 2,124 (523 ) (458 ) 2,482 2,193 Trust and investment management 194 210 131 114 582 676 (206 ) (214 ) 701 786 Investment banking (99 ) (20 ) 490 412 1 5 (1 ) (3 ) 391 394 Total trust and investment fees 613 639 711 604 2,980 2,805 (730 ) (675 ) 3,574 3,373 Card fees 809 858 83 86 1 1 (1 ) (1 ) 892 944 Other fees: Lending related charges and fees (1) 50 65 278 282 2 2 (2 ) (2 ) 328 347 Cash network fees 106 109 — — — — — — 106 109 Commercial real estate brokerage commissions — — 1 81 — — — — 1 81 Wire transfer and other remittance fees 66 64 43 48 2 2 (1 ) (1 ) 110 113 All other fees (1) 63 94 24 26 — — — — 87 120 Total other fees 285 332 346 437 4 4 (3 ) (3 ) 632 770 Mortgage banking (1) 340 641 40 68 (3 ) (3 ) 2 2 379 708 Insurance (1) 11 11 75 78 19 17 (10 ) (10 ) 95 96 Net gains (losses) from trading activities (1) 29 5 41 333 (7 ) 19 1 — 64 357 Net gains (losses) on debt securities (1) 194 37 43 88 — — — — 237 125 Net gains (losses) from equity securities (1) (1,028 ) 601 (95 ) 77 (278 ) 136 — — (1,401 ) 814 Lease income (1) — — 352 443 — — — — 352 443 Other income of the segment (1) 756 768 (423 ) (120 ) 127 (5 ) (88 ) (69 ) 372 574 Total noninterest income 2,709 4,502 1,681 2,577 2,848 2,978 (833 ) (759 ) 6,405 9,298 Revenue $ 9,496 11,750 5,817 7,111 3,715 4,079 (1,311 ) (1,331 ) 17,717 21,609 (1) These revenues are related to financial assets and liabilities, including loans, leases, securities and derivatives, with additional details included in other footnotes to our financial statements.
Disaggregation of Revenue by Operating Segment	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 Mar 31, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Asset-based revenue (1) $ 398 343 — — 1,805 1,580 (398 ) (343 ) 1,805 1,580 Transactional revenue 102 89 3 16 432 387 (107 ) (98 ) 430 394 Other revenue 18 17 87 62 160 157 (18 ) (17 ) 247 219 Brokerage advisory, commissions and other fees $ 518 449 90 78 2,397 2,124 (523 ) (458 ) 2,482 2,193 (1) We earned trailing commissions of $275 million and $280 million for first quarter 2020 and 2019 , respectively. 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 Mar 31, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Investment management fees $ — 1 — — 489 477 — — 489 478 Trust fees 194 209 89 82 102 168 (206 ) (214 ) 179 245 Other revenue — — 42 32 (9 ) 31 — — 33 63 Trust and investment management fees $ 194 210 131 114 582 676 (206 ) (214 ) 701 786 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 Mar 31, Community Wholesale Wealth and Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Overdraft fees $ 484 417 1 1 — — — — 485 418 Account charges 216 193 507 482 5 4 (4 ) (3 ) 724 676 Service charges on deposit accounts $ 700 610 508 483 5 4 (4 ) (3 ) 1,209 1,094 Table 18.5 presents our card fees by operating segment. Table 18.5 : Card Fees by Operating Segment Quarter ended Mar 31, Community Wholesale Wealth and Investment Management Other Consolidated (in millions) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Credit card interchange and network revenues (1) $ 134 189 83 86 1 1 (1 ) (1 ) 217 275 Debit card interchange and network revenues 513 507 — — — — — — 513 507 Late fees, cash advance fees, balance transfer fees, and annual fees 162 162 — — — — — — 162 162 Card fees $ 809 858 83 86 1 1 (1 ) (1 ) 892 944 (1) The cost of credit card rewards and rebates of $385 million and $354 million for the quarters ended March 31, 2020 and 2019 , respectively, are presented net against the related revenues.

Employee Benefits (Tables)

Employee Benefits (Tables)	3 Months Ended
	Mar. 31, 2020
Defined Benefit Plan [Abstract]
Net Periodic Benefit Cost	Table 19.1 presents the components of net periodic benefit cost. Service cost is reported in employee benefits expense and all other components of net periodic benefit cost are reported in other noninterest expense on the consolidated statement of income. Table 19.1: Net Periodic Benefit Cost 2020 2019 Pension benefits Pension benefits (in millions) Qualified Non-qualified Other benefits Qualified Non-qualified Other benefits Quarter ended March 31, Service cost $ 3 — — 3 — — Interest cost 86 4 4 105 6 5 Expected return on plan assets (148 ) — (6 ) (142 ) — (7 ) Amortization of net actuarial loss (gain) 36 4 (5 ) 37 2 (4 ) Amortization of prior service credit — — (2 ) — — (2 ) Settlement loss — 3 — — 2 — Net periodic benefit cost $ (23 ) 11 (9 ) 3 10 (8 )
Expenses Not Otherwise Shown Separately In Financial Statements [Table Text Block]	Table 19.2 separately presents other expenses exceeding 1% of the sum of net interest income and total noninterest income in any of the periods presented. Table 19.2: Other Expenses Quarter ended March 31, (in millions) 2020 2019 Outside professional services $ 727 678 Contract services 630 563 Operating losses 464 238 Leases (1) 260 286 Advertising and promotion 181 237 Other 955 1,141 Total other noninterest expense $ 3,217 3,143 (1) Represents expenses for assets we lease to customers.

Earnings and Divdends Per Commo

Earnings and Divdends Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2020
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 March 31, (in millions, except per share amounts) 2020 2019 Wells Fargo net income $ 653 5,860 Less: Preferred stock dividends and other (1) 611 353 Wells Fargo net income applicable to common stock (numerator) $ 42 5,507 Earnings per common share Average common shares outstanding (denominator) 4,104.8 4,551.5 Per share $ 0.01 1.21 Diluted earnings per common share Average common shares outstanding 4,104.8 4,551.5 Add: Stock options (2) — 2.5 Restricted share rights (2) 30.5 30.0 Diluted average common shares outstanding (denominator) 4,135.3 4,584.0 Per share $ 0.01 1.20 (1) The quarter ended March 31, 2020 , includes $272 million from the elimination of discounts or issuance costs associated with redemptions of preferred stock. (2) Calculated using the treasury stock method.
Outstanding Anti-Dilutive Securities	Table 20.2 presents the outstanding Convertible Preferred Stock, Series L, 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 March 31, (in millions) 2020 2019 Convertible Preferred Stock, Series L (1) 25.3 25.3 (1) Calculated using the if-converted 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 March 31, 2020 2019 Per common share $ 0.51 0.45

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 2019 (in millions) Before tax Tax effect Net of tax Before tax Tax effect Net of tax Debt securities: Net unrealized gains (losses) arising during the period $ (110 ) 22 (88 ) 2,831 (695 ) 2,136 Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 66 (16 ) 50 45 (11 ) 34 Net gains on debt securities (237 ) 48 (189 ) (125 ) 31 (94 ) Other noninterest income (1 ) — (1 ) (1 ) — (1 ) Subtotal reclassifications to net income (172 ) 32 (140 ) (81 ) 20 (61 ) Net change (282 ) 54 (228 ) 2,750 (675 ) 2,075 Derivative and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) 144 (35 ) 109 (26 ) 7 (19 ) Cash Flow Hedges: Net unrealized losses arising during the period on cash flow hedges (20 ) 5 (15 ) (9 ) 2 (7 ) Reclassification of net losses to net income on cash flow hedges: Interest income on loans 56 (14 ) 42 78 (19 ) 59 Interest expense on long-term debt 2 (1 ) 1 1 — 1 Subtotal reclassifications to net income 58 (15 ) 43 79 (19 ) 60 Net change 182 (45 ) 137 44 (10 ) 34 Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period 3 (1 ) 2 (4 ) 1 (3 ) Reclassification of amounts to non interest expense (3): Amortization of net actuarial loss 35 (8 ) 27 35 (8 ) 27 Settlements and other 1 — 1 — — — Subtotal reclassifications to non interest expense 36 (8 ) 28 35 (8 ) 27 Net change 39 (9 ) 30 31 (7 ) 24 Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period (194 ) 1 (193 ) 42 (2 ) 40 Net change (194 ) 1 (193 ) 42 (2 ) 40 Other comprehensive income (loss) $ (255 ) 1 (254 ) 2,867 (694 ) 2,173 Less: Other comprehensive loss from noncontrolling interests, net of tax (1 ) — Wells Fargo other comprehensive income (loss), net of tax $ (253 ) 2,173 (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 Fair value hedges (1) Cash flow hedges (2) Defined benefit plans adjustments Foreign currency translation adjustments Cumulative other comprehensive income Quarter ended March 31, 2020 Balance, beginning of period $ 1,552 (180 ) (298 ) (2,223 ) (162 ) (1,311 ) Net unrealized gains (losses) arising during the period (88 ) 109 (15 ) 2 (193 ) (185 ) Amounts reclassified from accumulated other comprehensive income (140 ) — 43 28 — (69 ) Net change (228 ) 109 28 30 (193 ) (254 ) Less: Other comprehensive loss from noncontrolling interests — — — — (1 ) (1 ) Balance, end of period $ 1,324 (71 ) (270 ) (2,193 ) (354 ) (1,564 ) Quarter ended March 31, 2019 Balance, beginning of period $ (3,122 ) (178 ) (507 ) (2,296 ) (233 ) (6,336 ) Transition adjustment (3) 481 — — — — 481 Balance, January 1, 2019 (2,641 ) (178 ) (507 ) (2,296 ) (233 ) (5,855 ) Net unrealized gains (losses) arising during the period 2,136 (19 ) (7 ) (3 ) 40 2,147 Amounts reclassified from accumulated other comprehensive income (61 ) — 60 27 — 26 Net change 2,075 (19 ) 53 24 40 2,173 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, end of period $ (566 ) (197 ) (454 ) (2,272 ) (193 ) (3,682 ) (1) Substantially all of the beginning and end of period amounts for fair value hedges are foreign exchange contracts. (2) Substantially all of the beginning and end of period amounts for cash flow hedges are interest rate contracts. (3) 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 . For more information see Note 1 (Summary of Significant Accounting Policies).

Operating Segments (Tables)

Operating Segments (Tables)	3 Months Ended
	Mar. 31, 2020
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) 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 Quarter ended Mar 31, Net interest income (2) $ 6,787 7,248 4,136 4,534 867 1,101 (478 ) (572 ) 11,312 12,311 Provision (reversal of provision) for credit losses 1,718 710 2,288 134 8 4 (9 ) (3 ) 4,005 845 Noninterest income 2,709 4,502 1,681 2,577 2,848 2,978 (833 ) (759 ) 6,405 9,298 Noninterest expense 7,116 7,689 3,763 3,838 3,103 3,303 (934 ) (914 ) 13,048 13,916 Income (loss) before income tax expense (benefit) 662 3,351 (234 ) 3,139 604 772 (368 ) (414 ) 664 6,848 Income tax expense (benefit) (3) 644 424 (546 ) 369 153 192 (92 ) (104 ) 159 881 Net income (loss) before noncontrolling interests 18 2,927 312 2,770 451 580 (276 ) (310 ) 505 5,967 Less: Net income (loss) from noncontrolling interests (137 ) 104 1 — (12 ) 3 — — (148 ) 107 Net income (loss) $ 155 2,823 311 2,770 463 577 (276 ) (310 ) 653 5,860 Average loans $ 462.6 458.2 484.5 476.4 78.5 74.4 (60.6 ) (59.0 ) 965.0 950.0 Average assets 1,039.2 1,015.4 885.0 844.5 88.1 83.2 (61.6 ) (60.0 ) 1,950.7 1,883.1 Average deposits 798.6 765.6 456.6 409.8 151.4 153.2 (68.6 ) (66.5 ) 1,338.0 1,262.1 (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 WIM 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) Income tax expense (benefit) for our Wholesale Banking operating segment included income tax credits related to low-income housing and renewable energy investments of $491 million and $427 million for first quarter 2020 and 2019 , respectively.

Regulatory and Agency Capital_2

Regulatory and Agency Capital Requirements (Tables)	3 Months Ended
	Mar. 31, 2020
Banking and Thrift [Abstract]
Regulatory Capital Information	Table 23.1 presents regulatory capital information for Wells Fargo & Company and the Bank in accordance with Basel III capital requirements. We must report the lower of our Common Equity Tier 1 (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 requirements for calculating CET1 and tier 1 capital, along with RWAs, are fully phased-in. However, the requirements for determining tier 2 and total capital are still in accordance with Transition Requirements and are scheduled to be fully phased-in by the end of 2021. Accordingly, the information presented below reflects fully phased-in CET1 capital, tier 1 capital, and RWAs, but reflects total capital still in accordance with Transition Requirements. At March 31, 2020 , the Bank and our other insured depository institutions were considered well-capitalized under the requirements of the Federal Deposit Insurance Act. 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 March 31, 2020 , the Bank met these requirements. Table 23.1: Regulatory Capital Information Wells Fargo & Company Wells Fargo Bank, N.A. March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019 (in millions, except ratios) Advanced Approach Standardized Approach Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Regulatory capital: Common equity tier 1 $ 134,751 134,751 138,760 138,760 147,537 147,537 145,149 145,149 Tier 1 154,277 154,277 158,949 158,949 147,537 147,537 145,149 145,149 Total 184,068 192,121 188,333 196,223 162,300 169,846 158,615 166,056 Assets: Risk-weighted assets (1) $ 1,181,271 1,262,808 1,165,079 1,245,853 1,061,736 1,171,371 1,047,054 1,152,791 Adjusted average assets (2) 1,922,129 1,922,129 1,913,297 1,913,297 1,711,367 1,711,367 1,695,807 1,695,807 Regulatory capital ratios: Common equity tier 1 capital (1) 11.41 % 10.67 * 11.91 11.14 * 13.90 12.60 * 13.86 12.59 * Tier 1 capital (1) 13.06 12.22 * 13.64 12.76 * 13.90 12.60 * 13.86 12.59 * Total capital (1) 15.58 15.21 * 16.16 15.75 * 15.29 14.50 * 15.15 14.40 * Tier 1 leverage (2) 8.03 8.03 8.31 8.31 8.62 8.62 8.56 8.56 Wells Fargo & Company Wells Fargo Bank, N.A. March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019 Supplementary leverage (3): Total leverage exposure $ 2,256,314 2,247,729 2,017,471 2,006,180 Supplementary leverage ratio 6.84 % 7.07 7.31 7.24 *Denotes the lowest capital ratio as determined under the Advanced and Standardized Approaches. (1) RWAs and capital ratios for December 31, 2019, have been revised as a result of a decrease in RWAs under the Advanced Approach due to the correction of duplicated operational loss amounts. (2) The leverage ratio consists of Tier 1 capital divided by total average assets, excluding goodwill and certain other items. (3) The supplementary leverage ratio (SLR) 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 March 31, 2020 , and December 31, 2019 . Table 23.2: Minimum Required Regulatory Capital Ratios – Transition Requirements (1) Wells Fargo & Company Wells Fargo Bank, N.A. March 31, 2020 December 31, 2019 March 31, 2020 December 31, 2019 Regulatory capital ratios: Common equity tier 1 capital 9.000 % 9.000 7.000 7.000 Tier 1 capital 10.500 10.500 8.500 8.500 Total capital 12.500 12.500 10.500 10.500 Tier 1 leverage 4.000 4.000 4.000 4.000 Supplementary leverage (2) 5.000 5.000 6.000 6.000 (1) At March 31, 2020 , 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 March 31, 2020 . Effective October 1, 2020, the 2.500% capital conservation buffer will be replaced under the Standardized Approach by a stress capital buffer that will be calculated annually as part of the Comprehensive Capital Analysis and Review (CCAR). (2) Wells Fargo & Company is required to maintain a SLR of at least 5.000% (comprised of a 3.000% minimum requirement plus a supplementary leverage buffer of 2.000% ) to avoid restrictions on capital distributions and discretionary bonus payments. The Bank is required to maintain a SLR of at least 6.000% to be considered well-capitalized under applicable regulatory capital adequacy guidelines.

Summary of Significant Accoun_4

Summary of Significant Accounting Policies, New Accounting Pronouncements (Details) - USD ($) $ in Millions		Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Item Effected [Line Items]
Loans	[1]	$ 1,009,843		$ 962,265
Allowance for credit losses, loans		12,022		$ 10,456	$ 10,821
Loans [Member]
Item Effected [Line Items]
Coverage				1.10%
Available-for-sale, held-to-maturity and other assets [Member]
Item Effected [Line Items]
Assets, effected by adoption of new accounting pronouncement				$ 420,000
Assets [Member]
Item Effected [Line Items]
Assets, effected by adoption of new accounting pronouncement				1,382,300
Commercial Portfolio Segment [Member]
Item Effected [Line Items]
Loans		567,735		515,719
Allowance for credit losses, loans		5,279		$ 6,245	6,428
Coverage				1.20%
Consumer Portfolio Segment [Member]
Item Effected [Line Items]
Loans		442,108		$ 446,546
Allowance for credit losses, loans		6,743		$ 4,211	$ 4,393
Coverage				0.90%
Residential mortgage [Member]
Item Effected [Line Items]
Loans		321,447		$ 323,356
Coverage				0.30%
Credit card [Member]
Item Effected [Line Items]
Loans		38,582		$ 41,013
Coverage				5.50%
Automobile [Member]
Item Effected [Line Items]
Loans		48,568		$ 47,873
Coverage				1.00%
Other revolving credit and installment [Member]
Item Effected [Line Items]
Loans		$ 33,511		$ 34,304
Coverage				1.60%
Previous accounting guidance [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				$ 10,456		$ 10,707
Previous accounting guidance [Member] | Loans [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				10,500
Previous accounting guidance [Member] | Available-for-sale, held-to-maturity and other assets [Member]
Item Effected [Line Items]
Allowance for credit loss, debt securities				100
Previous accounting guidance [Member] | Assets [Member]
Item Effected [Line Items]
Total allowance for credit losses				10,600
Previous accounting guidance [Member] | Commercial Portfolio Segment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				6,245		6,417
Previous accounting guidance [Member] | Consumer Portfolio Segment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				4,211		4,290
Previous accounting guidance [Member] | Residential mortgage [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				900
Previous accounting guidance [Member] | Credit card [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				2,300
Previous accounting guidance [Member] | Automobile [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				500
Previous accounting guidance [Member] | Other revolving credit and installment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				600
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Loans [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ (1,300)
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Available-for-sale, held-to-maturity and other assets [Member]
Item Effected [Line Items]
Allowance for credit loss, debt securities			0
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Assets [Member]
Item Effected [Line Items]
Total allowance for credit losses			(1,300)
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Commercial Portfolio Segment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			(2,900)
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Consumer Portfolio Segment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			1,500
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Residential mortgage [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			0
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Credit card [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			700
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Automobile [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			300
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Other revolving credit and installment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			600
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Item Effected [Line Items]
Allowance for credit losses, loans				9,127		10,707
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Loans [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 9,100
Coverage			0.90%
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Available-for-sale, held-to-maturity and other assets [Member]
Item Effected [Line Items]
Allowance for credit loss, debt securities			$ 100
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Assets [Member]
Item Effected [Line Items]
Total allowance for credit losses			9,300
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Commercial Portfolio Segment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 3,400	3,384		6,417
Coverage			0.70%
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Consumer Portfolio Segment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 5,700	$ 5,743		$ 4,290
Coverage			1.30%
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Residential mortgage [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 900
Coverage			0.30%
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Credit card [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 2,900
Coverage			7.10%
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Automobile [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 700
Coverage			1.50%
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Other revolving credit and installment [Member]
Item Effected [Line Items]
Allowance for credit losses, loans			$ 1,200
Coverage			3.50%
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Jan. 01, 2019
Supplemental cash flow information - Noncash activities
Trading debt securities retained from securitization of mortgage loans held for sale (MLHFS)	$ 7,538	$ 8,875
Transfers from loans to MLHFS	858	1,292
Transfers from available-for-sale debt securities to held-to-maturity debt securities	0	2,407
Operating lease ROU assets acquired with operating lease liabilities	197	$ 5,127
Operating lease ROU assets (lessee)	$ 4,650		$ 4,724
Accounting Standards Update 2016-02 [Member]
Supplemental cash flow information - Noncash activities
Operating lease ROU assets (lessee)				$ 4,900

Business Combinations (Details)

Business Combinations (Details)	3 Months Ended
	Mar. 31, 2020business
Business Acquisitions and DIvestitures [Line Items]
Business acquisition, number completed during period	0
Pending acquisition [Member]
Business Acquisitions and DIvestitures [Line Items]
Business acquisition, number completed during period	0

Cash, Loan and Dividend Restr_3

Cash, Loan and Dividend Restrictions (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 01, 2020	Apr. 28, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Cash, Loan and Dividend Restrictions [Line Items]
Average required reserve balance for FRB			$ 11,932		$ 11,374
Dividends declared per common share (in dollars per share)			$ 0.51	$ 0.45
Reserve balance for non-U.S. central banks
Cash, Loan and Dividend Restrictions [Line Items]
Restricted cash equivalents			$ 1,133		460
Segregated for benefit of brokerage customers under federal and other brokerage regulations
Cash, Loan and Dividend Restrictions [Line Items]
Restricted cash equivalents			970		733
Related to consolidated variable interest entities (VIEs) that can only be used to settle liabilities of VIEs
Cash, Loan and Dividend Restrictions [Line Items]
Restricted cash equivalents			19		$ 300
Bank subsidiaries [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Statutory accounting practices, statutory amount available for dividend payments without regulatory approval			1,900
Nonbank subsidiaries [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Statutory accounting practices, statutory amount available for dividend payments without regulatory approval			$ 24,800
Subsequent Event [Member]
Cash, Loan and Dividend Restrictions [Line Items]
Dividends declared per common share (in dollars per share)		$ 0.51
Dividends payable, date declared		Apr. 28, 2020
Dividends payable, date to be paid	Jun. 1, 2020

Trading Activities, Assets and

Trading Activities, Assets and Liabilities (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Trading Assets and Liabilities [Line Items]
Trading debt securities		$ 80,425	$ 79,733
Trading equity securities		13,573	27,440
Derivative assets		82,919	39,326
Net amounts in consolidated balance sheet, assets		25,023	14,203
Total trading assets		118,377	121,507
Gross trading derivative liabilities		74,861	37,930
Net amounts in consolidated balance sheet, liabilities		15,618	9,079
Total trading liabilities		31,896	25,217
Loans, excluding mortgage loans [Member]
Trading Assets and Liabilities [Line Items]
Loans held for sale	[1]	1,883	977
Held for trading [Member]
Trading Assets and Liabilities [Line Items]
Derivative assets		72,527	34,825
Netting		(49,821)	(21,463)
Net amounts in consolidated balance sheet, assets		22,706	13,362
Short sale		17,603	17,430
Gross trading derivative liabilities		67,891	33,861
Netting		(53,598)	(26,074)
Net amounts in consolidated balance sheet, liabilities		14,293	7,787
Held for trading [Member] | Loans, excluding mortgage loans [Member]
Trading Assets and Liabilities [Line Items]
Loans held for sale		$ 1,673	$ 972
[1]	(2) 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
	Mar. 31, 2020	Mar. 31, 2019
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Debt securities, interest income	$ 766	$ 793
Equity securities, interest income	206	210
Loans held for sale, interest income	12	24
Total interest income	14,727	17,003
Less: Interest expense	141	136
Net interest income	11,312	12,311
Debt securities, net gains (losses)	2,355	688
Equity securities, net gains (losses)	(4,401)	2,067
Loans held for sale, net gain (losses)	(12)	14
Derivatives	2,122	(2,412)
Net gains from trading activities	64	357
Total trading-related net interest and noninterest income	838	1,152
Held for trading [Member]
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Equity securities, interest income	137	115
Loans held for sale, interest income	12	23
Total interest income	915	931
Net interest income	$ 774	$ 795

AFS and HTM Debt Securities, Ma

AFS and HTM Debt Securities, Major Categories (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Schedule Of Available-For-Sale and Held-To-Maturity Debt Securities [Line Items]
Debt Securities, Available-For-Sale And Held-To-Maturity, Accrued Interest, Reversal	$ 6
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	248,187	$ 260,060
Available-for-sale, gross unrealized gains	6,263	3,786
Available-for-sale, gross unrealized losses	(3,221)	(387)
Available-for-sale, fair value	251,229	263,459	[1]
Available-for-sale, Amortized Cost		260,060
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	169,909	153,933	[1]
Held-to-maturity, gross unrealized gains	7,758	2,996
Held-to-maturity, gross unrealized losses	(105)	(69)
Held-to-maturity, at fair value	177,562	156,860
Held-to-maturity, amortized cost	169,920	153,933
Total AFS and HTM Debt securities:
Amortized cost, net	418,096
Amortized Cost		413,993
Debt securities, gross unrealized gains	14,021	6,782
Debt securities, gross unrealized losses	(3,326)	(456)
Fair value	428,791	420,319
Allowance for credit loss, available-for-sale debt securities	161	0
Allowance for credit loss, held-to-maturity debt securities	11	0
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	10,952
Available-for-sale, gross unrealized gains	88	13
Available-for-sale, gross unrealized losses	(4)	(1)
Available-for-sale, fair value	11,036	14,960
Available-for-sale, Amortized Cost		14,948
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	48,569
Held-to-maturity, gross unrealized gains	2,146	617
Held-to-maturity, gross unrealized losses	(24)	(19)
Held-to-maturity, at fair value	50,691	46,139
Held-to-maturity, amortized cost		45,541
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	38,686
Available-for-sale, gross unrealized gains	206	992
Available-for-sale, gross unrealized losses	(748)	(36)
Available-for-sale, fair value	38,144	40,337
Available-for-sale, Amortized Cost		39,381
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	14,304
Held-to-maturity, gross unrealized gains	344	286
Held-to-maturity, gross unrealized losses	(37)	(13)
Held-to-maturity, at fair value	14,611	13,759
Held-to-maturity, amortized cost	14,313	13,486
Securities of U.S. states and political subdivisions [Member] | Nontaxable preferred debt securities [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	5,800	5,800
Available-for-sale, fair value	5,800	5,800
Mortgage-backed securities [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	159,107
Available-for-sale, gross unrealized gains	5,849	2,354
Available-for-sale, gross unrealized losses	(312)	(171)
Available-for-sale, fair value	164,644	167,214
Available-for-sale, Amortized Cost		165,031
Federal agencies [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	154,390
Available-for-sale, gross unrealized gains	5,839	2,299
Available-for-sale, gross unrealized losses	(15)	(164)
Available-for-sale, fair value	160,214	162,453
Available-for-sale, Amortized Cost		160,318
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	107,013
Held-to-maturity, gross unrealized gains	5,268	2,093
Held-to-maturity, gross unrealized losses	(43)	(37)
Held-to-maturity, at fair value	112,238	96,925
Held-to-maturity, amortized cost		94,869
Residential [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	820
Available-for-sale, gross unrealized gains	0	14
Available-for-sale, gross unrealized losses	(44)	(1)
Available-for-sale, fair value	776	827
Available-for-sale, Amortized Cost		814
Commercial [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	3,897
Available-for-sale, gross unrealized gains	10	41
Available-for-sale, gross unrealized losses	(253)	(6)
Available-for-sale, fair value	3,654	3,934
Available-for-sale, Amortized Cost		3,899
Corporate debt securities [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	6,092
Available-for-sale, gross unrealized gains	38	252
Available-for-sale, gross unrealized losses	(275)	(32)
Available-for-sale, fair value	5,855	6,563
Available-for-sale, Amortized Cost		6,343
Collateralized loan and other debt obligations [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	26,873
Available-for-sale, gross unrealized gains	63	125
Available-for-sale, gross unrealized losses	(1,768)	(123)
Available-for-sale, fair value	25,168	29,695
Available-for-sale, Amortized Cost		29,693
Other [Member]
Available-for-sale debt securities:
Available-for-sale, amortized cost, net	6,477
Available-for-sale, gross unrealized gains	19	50
Available-for-sale, gross unrealized losses	(114)	(24)
Available-for-sale, fair value	6,382	4,690
Available-for-sale, Amortized Cost		4,664
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	23
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(1)	0
Held-to-maturity, at fair value	22	37
Held-to-maturity, amortized cost		37
Federal National Mortgage Association (FNMA) [Member]
Total AFS and HTM Debt securities:
Amortized Cost	102,400	98,500
Fair value	107,000	100,300
Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Total AFS and HTM Debt securities:
Amortized Cost	88,400	84,100
Fair value	$ 92,200	$ 85,500
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

AFS and HTM Debt Securities, HT

AFS and HTM Debt Securities, HTM Debt Securities Purchases and Transfers (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	$ 19,807	$ 16
Transfers from available-for-sale debt securities to held-to-maturity debt securities	0	2,407
Securities of U.S. Treasury and federal agencies [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	3,016	0
Securities of U.S. states and political subdivisions [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	866	0
Federal agencies [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	15,925	16
Transfers from available-for-sale debt securities to held-to-maturity debt securities	$ 0	$ 2,407

AFS and HTM Debt Securities, In

AFS and HTM Debt Securities, Income Statement Impacts (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Interest Income, Available-for-sale	$ 1,726	$ 2,201
Interest Income, Held-to-maturity	980	947
Total interest income	2,706	3,148
Available-for-sale, provision for credit losses	168	0
Held-to-maturity, provision for credit losses	4	0
Provision for credit losses, debt securities	172	0	[1]
Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss)	0	0
Debt securities [Member]
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Gross realized gains	256	173
Gross realized losses	(4)	(3)
Impairment write-downs included in earnings	(15)	(45)
Net realized gains	237	125
Credit-related [Member] | Debt securities [Member]
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Impairment write-downs included in earnings	0	(16)
Intent-to-sell [Member] | Debt securities [Member]
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Impairment write-downs included in earnings	$ (15)	$ (29)
[1]	(1) Prior to our adoption of Accounting Standards Update (ASU) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL) , on January 1, 2020, provision for credit losses from debt securities was not applicable and is therefore presented as $0 for the prior period. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

AFS and HTM Debt Securities, _2

AFS and HTM Debt Securities, Investment Grade Debt Securities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, fair value	$ 251,229	$ 263,459	[1]
Available-for-sale, percent of investment grade	99.00%	99.00%
Debt Securities, Held-to-maturity	$ 169,920	$ 153,933
Held-to-maturity, percent of investment grade	99.00%	99.00%
Securities Of US Treasury and federal agencies [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, fair value	$ 171,250	$ 177,413
Available-for-sale, percent of investment grade	100.00%	100.00%
Debt Securities, Held-to-maturity	$ 154,734	$ 139,619
Held-to-maturity, percent of investment grade	100.00%	100.00%
Securities of U.S. states and political subdivisions [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, fair value	$ 38,144	$ 40,337
Available-for-sale, percent of investment grade	99.00%	99.00%
Debt Securities, Held-to-maturity	$ 14,313	$ 13,486
Held-to-maturity, percent of investment grade	100.00%	100.00%
Collateralized loan obligations [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, fair value	$ 24,582	$ 29,055
Available-for-sale, percent of investment grade	100.00%	100.00%
All other debt securities [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, fair value	$ 17,253	$ 16,654
Available-for-sale, percent of investment grade	82.00%	82.00%
Debt Securities, Held-to-maturity	$ 873	$ 828
Held-to-maturity, percent of investment grade	7.00%	4.00%
Internal Investment Grade [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, fair value	$ 1,200	$ 2,200
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

AFS and HTM Debt Securities, De

AFS and HTM Debt Securities, Delinquency Status and Nonaccrual (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Available For Sale And Held To Maturity Debt Securities Delinquency Status And Nonaccrual [Abstract]
Debt securities, available-for-sale and held-to-maturity, past due	$ 0	$ 0
Debt securities, available-for-sale, nonaccrual	327	110
Debt securities, held-to-maturity, nonaccrual	0	$ 0
Debt Securities, Held-to-maturity, Purchased with Credit Deterioration, Amount at Purchase Price	0
Debt Securities, Available-for-sale, Purchased with Credit Deterioration, Amount at Purchase Price [Abstract]
Par value	164
Allowance for credit losses at acquisition	(11)
Discount (or premiums) attributable to other factors	3
Purchase price of available-for-sale debt securities purchased with credit deterioration	$ 156

AFS and HTM Debt Securities, Gr

AFS and HTM Debt Securities, Gross Unrealized Losses and Fair Value - AFS Debt Securities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	$ (2,537)	$ (98)
Less than 12 months, Fair value, available-for-sale	53,540	27,690
12 months or more, Gross unrealized losses, available-for-sale	(684)	(289)
12 months or more, Fair value, available-for-sale	9,659	33,223
Total, Gross unrealized losses, available-for-sale	(3,221)	(387)
Total Fair value, available for sale	63,199	60,913
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(4)	0
Less than 12 months, Fair value, available-for-sale	615	0
12 months or more, Gross unrealized losses, available-for-sale	0	(1)
12 months or more, Fair value, available-for-sale	0	2,423
Total, Gross unrealized losses, available-for-sale	(4)	(1)
Total Fair value, available for sale	615	2,423
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(678)	(10)
Less than 12 months, Fair value, available-for-sale	22,740	2,776
12 months or more, Gross unrealized losses, available-for-sale	(70)	(26)
12 months or more, Fair value, available-for-sale	1,490	2,418
Total, Gross unrealized losses, available-for-sale	(748)	(36)
Total Fair value, available for sale	24,230	5,194
Mortgage-backed securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(275)	(54)
Less than 12 months, Fair value, available-for-sale	4,460	17,954
12 months or more, Gross unrealized losses, available-for-sale	(37)	(117)
12 months or more, Fair value, available-for-sale	980	10,885
Total, Gross unrealized losses, available-for-sale	(312)	(171)
Total Fair value, available for sale	5,440	28,839
Federal agencies [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(3)	(50)
Less than 12 months, Fair value, available-for-sale	594	16,807
12 months or more, Gross unrealized losses, available-for-sale	(12)	(114)
12 months or more, Fair value, available-for-sale	737	10,641
Total, Gross unrealized losses, available-for-sale	(15)	(164)
Total Fair value, available for sale	1,331	27,448
Residential [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(44)	(1)
Less than 12 months, Fair value, available-for-sale	591	149
12 months or more, Gross unrealized losses, available-for-sale	0	0
12 months or more, Fair value, available-for-sale	0	0
Total, Gross unrealized losses, available-for-sale	(44)	(1)
Total Fair value, available for sale	591	149
Commercial [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(228)	(3)
Less than 12 months, Fair value, available-for-sale	3,275	998
12 months or more, Gross unrealized losses, available-for-sale	(25)	(3)
12 months or more, Fair value, available-for-sale	243	244
Total, Gross unrealized losses, available-for-sale	(253)	(6)
Total Fair value, available for sale	3,518	1,242
Corporate debt securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(263)	(9)
Less than 12 months, Fair value, available-for-sale	3,337	303
12 months or more, Gross unrealized losses, available-for-sale	(12)	(23)
12 months or more, Fair value, available-for-sale	129	216
Total, Gross unrealized losses, available-for-sale	(275)	(32)
Total Fair value, available for sale	3,466	519
Collateralized loan and other debt obligations [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(1,226)	(13)
Less than 12 months, Fair value, available-for-sale	18,303	5,070
12 months or more, Gross unrealized losses, available-for-sale	(542)	(110)
12 months or more, Fair value, available-for-sale	6,442	16,789
Total, Gross unrealized losses, available-for-sale	(1,768)	(123)
Total Fair value, available for sale	24,745	21,859
Other [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(91)	(12)
Less than 12 months, Fair value, available-for-sale	4,085	1,587
12 months or more, Gross unrealized losses, available-for-sale	(23)	(12)
12 months or more, Fair value, available-for-sale	618	492
Total, Gross unrealized losses, available-for-sale	(114)	(24)
Total Fair value, available for sale	$ 4,703	$ 2,079

AFS and HTM Debt Securities, Cr

AFS and HTM Debt Securities, Credit Loss Component (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt Securities, Available-for-sale and Held-to-Maturity, Allowance for Credit Loss [Line Items]
Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss)	$ 0	$ 0
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period, Available-for-sale	0
Provision for credit losses, Available-for-sale	168	0
Securities purchased with credit deterioration, Available-for-sale	11
Reduction due to intent to sell, Available-for-sale	(11)
Charge-offs, Available-for-sale	(32)
Interest income, Available-for-sale	1
Balance, end of period, Available-for-sale	161
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period, Held-to-Maturity	0
Provision for credit losses, Held-to-maturity	4	$ 0
Securities purchased with credit deterioration, Held-to-maturity	0
Reduction due to intent to sell, Held-to-maturity	0
Charge-offs, Held-to-maturity	0
Interest income, Held-to-maturity	0
Balance, end of period, Held-to-Maturity	11
Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period, Available-for-sale	24
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period, Held-to-Maturity	7
Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2016-13 [Member]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period, Available-for-sale	24
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period, Held-to-Maturity	$ 7

AFS Debt Securities, Contractua

AFS Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 248,187	$ 260,060
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	14,359
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	7,131
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	22,374
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	204,323
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	251,229	263,459	[1]
Available-for-sale, fair value, remaining contractual maturity, due within one year	14,370
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	7,090
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	21,684
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 208,085
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	3.13%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	2.63%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	3.75%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	3.24%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	3.14%
Securities of U.S. Treasury and federal agencies [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 10,952
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	8,023
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	28
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	45
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	2,856
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	11,036	14,960
Available-for-sale, fair value, remaining contractual maturity, due within one year	8,029
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	29
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	49
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 2,929
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	2.10%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	2.32%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	1.97%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.84%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	1.49%
Securities of U.S. states and political subdivisions [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 38,686
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	3,940
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	4,196
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	4,034
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	26,516
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	38,144	40,337
Available-for-sale, fair value, remaining contractual maturity, due within one year	3,963
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	4,244
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	4,039
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 25,898
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	3.15%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	4.58%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	3.20%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	2.78%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.98%
Mortgage-backed securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 159,107
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	2
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	155
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	2,138
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	156,812
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	164,644	167,214
Available-for-sale, fair value, remaining contractual maturity, due within one year	2
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	159
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	2,192
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 162,291
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	3.18%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	1.93%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	2.94%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	2.46%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	3.19%
Federal agencies [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 154,390
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	2
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	123
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	1,944
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	152,321
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	160,214	162,453
Available-for-sale, fair value, remaining contractual maturity, due within one year	2
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	128
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	2,005
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 158,079
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	3.19%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	1.93%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	3.06%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	2.44%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	3.20%
Residential [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 820
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	0
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	0
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	0
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	820
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	776	827
Available-for-sale, fair value, remaining contractual maturity, due within one year	0
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	0
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	0
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 776
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	3.19%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	0.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	0.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	0.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	3.19%
Commercial [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 3,897
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	0
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	32
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	194
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	3,671
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	3,654	3,934
Available-for-sale, fair value, remaining contractual maturity, due within one year	0
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	31
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	187
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 3,436
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	2.62%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	0.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	2.49%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	2.71%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.62%
Corporate debt securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 6,092
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	373
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	2,048
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	2,847
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	824
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	5,855	6,563
Available-for-sale, fair value, remaining contractual maturity, due within one year	355
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	1,973
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	2,755
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 772
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	4.97%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	4.12%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	5.18%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	5.03%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	4.67%
Collateralized loan and other debt obligations [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 26,873
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	0
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	0
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	12,014
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	14,859
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	25,168	29,695
Available-for-sale, fair value, remaining contractual maturity, due within one year	0
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	0
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	11,362
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 13,806
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	3.21%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	0.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	0.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	3.29%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	3.15%
Other [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, amortized cost, net	$ 6,477
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	2,021
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	704
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	1,296
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	2,456
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	6,382	$ 4,690
Available-for-sale, fair value, remaining contractual maturity, due within one year	2,021
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	685
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	1,287
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 2,389
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, weighted average yield	1.51%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	(0.22%)
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	2.95%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.41%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.57%
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

AFS and HTM Debt Securities HTM

AFS and HTM Debt Securities HTM Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 169,909	$ 153,933	[1]
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	8,347
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	37,182
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	1,851
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	122,529
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	177,562	156,860
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	38,914
Held-to-maturity, fair value, remaining contractual maturity, due within one year	8,505
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	1,927
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 128,216
Debt Securities, Held-to-maturity, Maturity, Weighted Average Yield [Abstract]
Held-to-maturity weighted average yield	2.70%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	2.24%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.18%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	2.78%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.89%
US Treasury and Government [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 48,569
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	8,336
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	36,454
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	0
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	3,779
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	50,691	46,139
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	38,170
Held-to-maturity, fair value, remaining contractual maturity, due within one year	8,494
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	0
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 4,027
Debt Securities, Held-to-maturity, Maturity, Weighted Average Yield [Abstract]
Held-to-maturity weighted average yield	2.14%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	2.24%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.18%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	0.00%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	1.56%
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 14,304
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	11
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	713
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	1,724
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	11,856
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	14,611	13,759
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	731
Held-to-maturity, fair value, remaining contractual maturity, due within one year	11
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	1,794
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 12,075
Debt Securities, Held-to-maturity, Maturity, Weighted Average Yield [Abstract]
Held-to-maturity weighted average yield	2.71%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	1.95%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.22%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	2.86%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.72%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 107,013
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	0
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	15
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	104
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	106,894
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	112,238	96,925
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	13
Held-to-maturity, fair value, remaining contractual maturity, due within one year	0
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	111
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 112,114
Debt Securities, Held-to-maturity, Maturity, Weighted Average Yield [Abstract]
Held-to-maturity weighted average yield	2.96%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	0.00%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.99%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	1.37%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.96%
Other debt securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 23
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	0
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	0
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	23
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	0
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	22	$ 37
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	0
Held-to-maturity, fair value, remaining contractual maturity, due within one year	0
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	22
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 0
Debt Securities, Held-to-maturity, Maturity, Weighted Average Yield [Abstract]
Held-to-maturity weighted average yield	3.01%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	0.00%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	0.00%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	3.01%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	0.00%
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

Loans and Related Allowance f_3

Loans and Related Allowance for Credit Losses, Loans Outstanding (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred income as a percentage of total loans outstanding		1.00%	1.00%
Loans	[1]	$ 1,009,843	$ 962,265
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, accrued interest, writeoff		9
Loans		567,735	515,719
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		405,020	354,125
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		122,767	121,824
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		20,812	19,939
Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		19,136	19,831
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, accrued interest, writeoff		63
Loans		442,108	446,546
Real estate 1-4 family first mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		292,920	293,847
Real estate 1-4 family junior lien mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		28,527	29,509
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		38,582	41,013
Automobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		48,568	47,873
Other revolving credit and installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		33,511	34,304
Geographic distribution, foreign [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		87,660	80,152
Geographic distribution, foreign [Member] | Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		78,753	70,494
Geographic distribution, foreign [Member] | Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		6,309	7,004
Geographic distribution, foreign [Member] | Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		1,478	1,434
Geographic distribution, foreign [Member] | Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		$ 1,120	$ 1,220
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance f_4

Loans and Related Allowance for Credit Losses, Significant Activity (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	$ 342	$ 332
Sales	(839)	(600)
Transfers (to) MLHFS/LHFS		(3)
Transfers from MLHFS/LHFS	79
Gain (loss) on sale of financing receivable	463
Total Commercial [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	341	329
Sales	(813)	(421)
Transfers (to) MLHFS/LHFS		(3)
Transfers from MLHFS/LHFS	77
Total Consumer [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	1	3
Sales	(26)	(179)
Transfers (to) MLHFS/LHFS		$ 0
Transfers from MLHFS/LHFS	2
Real estate 1-4 family first mortgage [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Sales	$ (709)

Loans and Related Allowance f_5

Loans and Related Allowance for Credit Losses, Commitments to Lend (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, temporary advance arrangements	$ 72,700
Total unfunded credit commitments	563,249	$ 585,064
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	340,731	372,926
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	314,135	346,991
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	9,360	8,206
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	17,236	17,729
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	222,518	212,138
Real estate 1-4 family first mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	42,691	34,391
Real estate 1-4 family junior lien mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	36,301	36,916
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	118,339	114,933
Other revolving credit and installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total unfunded credit commitments	25,187	25,898
International [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial letters of credit international	$ 981.3	$ 862

Loans and Related Allowance f_6

Loans and Related Allowance for Credit Losses, Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, allowance for credit loss, period increase (decrease)	$ 2,900
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision for credit losses, loans	3,833	$ 845
Interest income on certain loans	(38)	(39)
Loan charge-offs	(1,238)	(1,063)
Loan recoveries	329	368
Net loan charge-offs	(909)	(695)
Other	9	3
Allowance for credit losses for loans, ending balance	12,022	10,821
Components:
Allowance for loan losses			$ 11,263		$ 9,551
Allowance for credit losses, loans	$ 12,022	$ 10,821	$ 12,022		10,456	$ 10,821
Net loan charge-offs (annualized) as a percentage of average total loans	0.38%	0.30%
Allowance for loan losses as a percentage of total loans			1.12%			1.04%
Allowance for credit losses for loans as a percentage of total loans			1.19%			1.14%
Purchase credit deteriorated [Member]
Components:
Allowance for credit losses, loans					0
Previous accounting guidance [Member]
Components:
Allowance for credit losses, loans					10,456		$ 10,707
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Not purchased credit deteriorated [Member]
Components:
Allowance for credit losses, loans					(1,337)		0
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Purchase credit deteriorated [Member]
Components:
Allowance for credit losses, loans					8		0
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Components:
Allowance for credit losses, loans					9,127		10,707
Allowance for loan losses [Member]
Components:
Allowance for loan losses			$ 11,263			$ 9,900
Allowance for unfunded credit commitments [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, ending balance	$ 759	$ 921
Components:
Allowance for credit losses, loans	759	921	759			921
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision for credit losses, loans	2,240	164
Interest income on certain loans	(14)	(11)
Loan charge-offs	(393)	(200)
Loan recoveries	69	55
Net loan charge-offs	(324)	(145)
Other	(7)	3
Allowance for credit losses for loans, ending balance	5,279	6,428
Components:
Allowance for credit losses, loans	5,279	6,428	5,279		6,245	6,428
Total Commercial [Member] | Purchase credit deteriorated [Member]
Components:
Allowance for credit losses, loans					0
Total Commercial [Member] | Previous accounting guidance [Member]
Components:
Allowance for credit losses, loans					6,245		6,417
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Components:
Allowance for credit losses, loans				$ (2,900)
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Not purchased credit deteriorated [Member]
Components:
Allowance for credit losses, loans					(2,861)		0
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Purchase credit deteriorated [Member]
Components:
Allowance for credit losses, loans					0		0
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Components:
Allowance for credit losses, loans				3,400	3,384		6,417
Commercial and industrial loans [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(377)	(176)
Loan recoveries	44	43
Commercial real estate mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(3)	(12)
Loan recoveries	5	6
Commercial real estate construction [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	0	(1)
Loan recoveries	16	3
Commercial lease financing receivable [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(13)	(11)
Loan recoveries	4	3
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision for credit losses, loans	1,593	681
Interest income on certain loans	(24)	(28)
Loan charge-offs	(845)	(863)
Loan recoveries	260	313
Net loan charge-offs	(585)	(550)
Other	16	0
Allowance for credit losses for loans, ending balance	6,743	4,393
Components:
Allowance for credit losses, loans	6,743	4,393	$ 6,743		4,211	$ 4,393
Total Consumer [Member] | Purchase credit deteriorated [Member]
Components:
Allowance for credit losses, loans					0
Total Consumer [Member] | Previous accounting guidance [Member]
Components:
Allowance for credit losses, loans					4,211		4,290
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Components:
Allowance for credit losses, loans				1,500
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Not purchased credit deteriorated [Member]
Components:
Allowance for credit losses, loans					1,524		0
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Purchase credit deteriorated [Member]
Components:
Allowance for credit losses, loans					8		0
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Components:
Allowance for credit losses, loans				5,700	5,743		$ 4,290
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(23)	(43)
Loan recoveries	26	55
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(30)	(34)
Loan recoveries	35	43
Credit card [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(471)	(437)
Loan recoveries	94	85
Credit card [Member] | Previous accounting guidance [Member]
Components:
Allowance for credit losses, loans					2,300
Credit card [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Components:
Allowance for credit losses, loans				700
Credit card [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Components:
Allowance for credit losses, loans				2,900
Automobile [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(156)	(187)
Loan recoveries	74	96
Automobile [Member] | Previous accounting guidance [Member]
Components:
Allowance for credit losses, loans					500
Automobile [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Components:
Allowance for credit losses, loans				300
Automobile [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Components:
Allowance for credit losses, loans				700
Other revolving credit and installment [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(165)	(162)
Loan recoveries	$ 31	$ 34
Other revolving credit and installment [Member] | Previous accounting guidance [Member]
Components:
Allowance for credit losses, loans					$ 600
Other revolving credit and installment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Components:
Allowance for credit losses, loans				600
Other revolving credit and installment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Components:
Allowance for credit losses, loans				$ 1,200

Loans and Related Allowance f_7

Loans and Related Allowance for Credit Losses, Allowance Activity by Portfolio Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	$ 10,456
Provision for credit losses, loans	3,833	$ 845
Interest income on certain loans	(38)	(39)
Loan charge-offs	(1,238)	(1,063)
Loan recoveries	329	368
Net loan charge-offs	(909)	(695)
Other	9	3
Allowance for credit losses for loans, ending balance	12,022	10,821
Purchase credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	0
Previous accounting guidance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	10,456	10,707
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Not purchased credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	(1,337)	0
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Purchase credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	8	0
Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	9,127	10,707
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	6,245
Provision for credit losses, loans	2,240	164
Interest income on certain loans	(14)	(11)
Loan charge-offs	(393)	(200)
Loan recoveries	69	55
Net loan charge-offs	(324)	(145)
Other	(7)	3
Allowance for credit losses for loans, ending balance	5,279	6,428
Total Commercial [Member] | Purchase credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	0
Total Commercial [Member] | Previous accounting guidance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	6,245	6,417
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Not purchased credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	(2,861)	0
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Purchase credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	0	0
Total Commercial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	3,384	6,417
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	4,211
Provision for credit losses, loans	1,593	681
Interest income on certain loans	(24)	(28)
Loan charge-offs	(845)	(863)
Loan recoveries	260	313
Net loan charge-offs	(585)	(550)
Other	16	0
Allowance for credit losses for loans, ending balance	6,743	4,393
Total Consumer [Member] | Purchase credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	0
Total Consumer [Member] | Previous accounting guidance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	4,211	4,290
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Not purchased credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	1,524	0
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Purchase credit deteriorated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	8	0
Total Consumer [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses for loans, beginning balance	$ 5,743	$ 4,290

Loans and Related Allowance f_8

Loans and Related Allowance for Credit Losses, Allowance by Credit Impairment Methodology (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses for loans		$ 12,022	$ 10,456	$ 10,821
Loans	[1]	1,009,843	962,265
Total Commercial [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses for loans		5,279	6,245	6,428
Loans		567,735	515,719
Total Consumer [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses for loans		6,743	4,211	$ 4,393
Loans		$ 442,108	446,546
Non-PCI [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Allowance for credit losses, collectively evaluated			9,142
Allowance for credit losses, individually evaluated			1,314
Recorded investment in loans, collectively evaluated			948,667
Recorded investment in loans, individually evaluated			13,030
Non-PCI [Member] | Total Commercial [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Allowance for credit losses, collectively evaluated			5,778
Allowance for credit losses, individually evaluated			467
Recorded investment in loans, collectively evaluated			512,586
Recorded investment in loans, individually evaluated			3,133
Non-PCI [Member] | Total Consumer [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Allowance for credit losses, collectively evaluated			3,364
Allowance for credit losses, individually evaluated			847
Recorded investment in loans, collectively evaluated			436,081
Recorded investment in loans, individually evaluated			9,897
Loans			445,978
PCI [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses for loans			0
Loans			568
PCI [Member] | Total Commercial [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses for loans			0
Loans			0
PCI [Member] | Total Consumer [Member]
Loans and Allowance for Credit Losses, by Credit Impairment Method [Abstract]
Total allowance for credit losses for loans			0
Loans			$ 568
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance f_9

Loans and Related Allowance for Credit Losses, Loans by Credit Quality Indicator, Commercial (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Abstract]
Total	[1]	$ 1,009,843	$ 962,265
Total Commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		43,629
Term loans by origination year, 2019		100,041
Term loans by origination year, 2018		58,274
Term loans by origination year, 2017		33,315
Term loans by origination year, 2016		27,451
Term loans by origination year, Prior		31,483
Revolving loans		273,198
Revolving loans converted to term loans		344
Total		567,735	515,719
Total Commercial [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total			495,201
Total Commercial [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total			20,518
Commercial and industrial loans [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		33,416
Term loans by origination year, 2019		54,957
Term loans by origination year, 2018		24,736
Term loans by origination year, 2017		12,324
Term loans by origination year, 2016		8,248
Term loans by origination year, Prior		5,519
Revolving loans		265,611
Revolving loans converted to term loans		209
Total		405,020	354,125
Commercial and industrial loans [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		32,531
Term loans by origination year, 2019		53,904
Term loans by origination year, 2018		23,788
Term loans by origination year, 2017		11,603
Term loans by origination year, 2016		7,815
Term loans by origination year, Prior		5,061
Revolving loans		250,893
Revolving loans converted to term loans		209
Total		385,804	338,740
Commercial and industrial loans [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		885
Term loans by origination year, 2019		1,053
Term loans by origination year, 2018		948
Term loans by origination year, 2017		721
Term loans by origination year, 2016		433
Term loans by origination year, Prior		458
Revolving loans		14,718
Revolving loans converted to term loans		0
Total		19,216	15,385
Commercial real estate mortgage [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		7,396
Term loans by origination year, 2019		31,772
Term loans by origination year, 2018		23,783
Term loans by origination year, 2017		15,318
Term loans by origination year, 2016		15,922
Term loans by origination year, Prior		22,612
Revolving loans		5,836
Revolving loans converted to term loans		128
Total		122,767	121,824
Commercial real estate mortgage [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		7,336
Term loans by origination year, 2019		31,320
Term loans by origination year, 2018		23,268
Term loans by origination year, 2017		14,577
Term loans by origination year, 2016		15,376
Term loans by origination year, Prior		21,087
Revolving loans		5,563
Revolving loans converted to term loans		128
Total		118,655	118,054
Commercial real estate mortgage [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		60
Term loans by origination year, 2019		452
Term loans by origination year, 2018		515
Term loans by origination year, 2017		741
Term loans by origination year, 2016		546
Term loans by origination year, Prior		1,525
Revolving loans		273
Revolving loans converted to term loans		0
Total		4,112	3,770
Commercial real estate construction [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		1,295
Term loans by origination year, 2019		7,324
Term loans by origination year, 2018		5,621
Term loans by origination year, 2017		3,030
Term loans by origination year, 2016		1,298
Term loans by origination year, Prior		486
Revolving loans		1,751
Revolving loans converted to term loans		7
Total		20,812	19,939
Commercial real estate construction [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		1,293
Term loans by origination year, 2019		7,226
Term loans by origination year, 2018		5,528
Term loans by origination year, 2017		3,024
Term loans by origination year, 2016		1,290
Term loans by origination year, Prior		472
Revolving loans		1,750
Revolving loans converted to term loans		7
Total		20,590	19,752
Commercial real estate construction [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		2
Term loans by origination year, 2019		98
Term loans by origination year, 2018		93
Term loans by origination year, 2017		6
Term loans by origination year, 2016		8
Term loans by origination year, Prior		14
Revolving loans		1
Revolving loans converted to term loans		0
Total		222	187
Commercial lease financing receivable [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		1,522
Term loans by origination year, 2019		5,988
Term loans by origination year, 2018		4,134
Term loans by origination year, 2017		2,643
Term loans by origination year, 2016		1,983
Term loans by origination year, Prior		2,866
Revolving loans		0
Revolving loans converted to term loans		0
Total		19,136	19,831
Commercial lease financing receivable [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		1,439
Term loans by origination year, 2019		5,566
Term loans by origination year, 2018		3,769
Term loans by origination year, 2017		2,447
Term loans by origination year, 2016		1,844
Term loans by origination year, Prior		2,739
Revolving loans		0
Revolving loans converted to term loans		0
Total		17,804	18,655
Commercial lease financing receivable [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, 2020		83
Term loans by origination year, 2019		422
Term loans by origination year, 2018		365
Term loans by origination year, 2017		196
Term loans by origination year, 2016		139
Term loans by origination year, Prior		127
Revolving loans		0
Revolving loans converted to term loans		0
Total		$ 1,332	$ 1,176
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance _10

Loans and Related Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	[1]	$ 1,009,843	$ 962,265
Nonaccrual loans		6,156
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		567,735	515,719
Nonaccrual loans		2,875	2,254
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		405,020	354,125
Nonaccrual loans		1,779	1,545
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		122,767	121,824
Nonaccrual loans		944	573
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		20,812	19,939
Nonaccrual loans		21	41
Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		19,136	19,831
Nonaccrual loans		131	95
Current-29 days past due and still accruing [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		563,816	512,406
Current-29 days past due and still accruing [Member] | Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		402,706	352,110
Current-29 days past due and still accruing [Member] | Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		121,621	120,967
Current-29 days past due and still accruing [Member] | Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		20,696	19,845
Current-29 days past due and still accruing [Member] | Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		18,793	19,484
30-89 days past due and still accruing [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		991	981
30-89 days past due and still accruing [Member] | Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		511	423
30-89 days past due and still accruing [Member] | Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		174	253
30-89 days past due and still accruing [Member] | Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		94	53
30-89 days past due and still accruing [Member] | Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		212	252
90 days past due and still accruing [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		53	78
90 days past due and still accruing [Member] | Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		24	47
90 days past due and still accruing [Member] | Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		28	31
90 days past due and still accruing [Member] | Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		1	0
90 days past due and still accruing [Member] | Commercial lease financing receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		$ 0	$ 0
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance _11

Loans and Related Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		$ 7,023	$ 7,285
By delinquency status:
Total	[1]	1,009,843	962,265
Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		881	933
Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		6,142	6,352
Purchase credit deteriorated [Member]
By delinquency status:
Total			568
Total Consumer [Member]
By delinquency status:
Term loans by origination year, 2020		21,555
Term loans by origination year, 2019		82,693
Term loans by origination year, 2018		36,793
Term loans by origination year, 2017		43,712
Term loans by origination year, 2016		48,161
Term loans by origination year, Prior		115,472
Revolving loans		83,479
Revolving loans converted to term loans		10,243
Total		442,108	446,546
Total Consumer [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		828	855
Total Consumer [Member] | Non-government insured/guaranteed [Member] | 90 days past due [Member]
By delinquency status:
Total		2,000	1,900
Total Consumer [Member] | Government insured or guaranteed [Member] | 90 days past due [Member]
By delinquency status:
Total		6,100	6,400
Total Consumer [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			445,978
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Total			429,158
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Total			2,685
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Total			1,084
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Total			619
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Total			593
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Total			669
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			11,170
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Total			171
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Total			10,999
Total Consumer [Member] | Purchase credit deteriorated [Member]
By delinquency status:
Total			$ 568
Total Consumer [Member] | Purchase credit deteriorated [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			26.00%
Total Consumer [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			$ 568
Residential mortgage [Member]
By delinquency status:
Term loans by origination year, 2020		14,264
Term loans by origination year, 2019		59,188
Term loans by origination year, 2018		25,292
Term loans by origination year, 2017		36,560
Term loans by origination year, 2016		41,750
Term loans by origination year, Prior		107,298
Revolving loans		27,391
Revolving loans converted to term loans		9,704
Total		321,447	323,356
Residential mortgage [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			322,788
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			11,170
Residential mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			568
Real estate 1-4 family first mortgage [Member]
By delinquency status:
Term loans by origination year, 2020		14,256
Term loans by origination year, 2019		59,144
Term loans by origination year, 2018		25,241
Term loans by origination year, 2017		36,511
Term loans by origination year, 2016		41,709
Term loans by origination year, Prior		105,728
Revolving loans		8,063
Revolving loans converted to term loans		2,268
Total		292,920	293,847
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		128	112
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		14,238
Term loans by origination year, 2019		59,044
Term loans by origination year, 2018		25,047
Term loans by origination year, 2017		36,185
Term loans by origination year, 2016		41,121
Term loans by origination year, Prior		93,490
Revolving loans		7,981
Revolving loans converted to term loans		2,020
Total		279,126
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		14
Term loans by origination year, 2019		65
Term loans by origination year, 2018		30
Term loans by origination year, 2017		39
Term loans by origination year, 2016		64
Term loans by origination year, Prior		1,184
Revolving loans		38
Revolving loans converted to term loans		57
Total		1,491
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		2
Term loans by origination year, 2019		3
Term loans by origination year, 2018		6
Term loans by origination year, 2017		5
Term loans by origination year, 2016		8
Term loans by origination year, Prior		370
Revolving loans		20
Revolving loans converted to term loans		27
Total		441
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		3
Term loans by origination year, 2017		0
Term loans by origination year, 2016		6
Term loans by origination year, Prior		190
Revolving loans		8
Revolving loans converted to term loans		17
Total		224
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		1
Term loans by origination year, 2017		4
Term loans by origination year, 2016		7
Term loans by origination year, Prior		142
Revolving loans		11
Revolving loans converted to term loans		22
Total		187
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		4
Term loans by origination year, 2017		7
Term loans by origination year, 2016		5
Term loans by origination year, Prior		466
Revolving loans		5
Revolving loans converted to term loans		125
Total		612
Real estate 1-4 family first mortgage [Member] | Government insured or guaranteed [Member]
By delinquency status:
Term loans by origination year, 2020		1
Term loans by origination year, 2019		32
Term loans by origination year, 2018		150
Term loans by origination year, 2017		271
Term loans by origination year, 2016		498
Term loans by origination year, Prior		9,887
Revolving loans		0
Revolving loans converted to term loans		0
Total		10,839
Real estate 1-4 family first mortgage [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		160
Revolving loans		0
Revolving loans converted to term loans		0
Total		160
Real estate 1-4 family first mortgage [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Term loans by origination year, 2020		2
Term loans by origination year, 2019		32
Term loans by origination year, 2018		150
Term loans by origination year, 2017		271
Term loans by origination year, 2016		498
Term loans by origination year, Prior		9,726
Revolving loans		0
Revolving loans converted to term loans		0
Total		10,679
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			293,292
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Total			279,722
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Total			1,136
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Total			404
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Total			197
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Total			160
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Total			503
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			11,170
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Total			171
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Total			10,999
Real estate 1-4 family first mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			555
Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		44
Term loans by origination year, 2018		51
Term loans by origination year, 2017		49
Term loans by origination year, 2016		41
Term loans by origination year, Prior		1,570
Revolving loans		19,328
Revolving loans converted to term loans		7,436
Total		28,527	29,509
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		25	32
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		44
Term loans by origination year, 2018		51
Term loans by origination year, 2017		48
Term loans by origination year, 2016		39
Term loans by origination year, Prior		1,491
Revolving loans		19,178
Revolving loans converted to term loans		7,058
Total		27,917
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		34
Revolving loans		76
Revolving loans converted to term loans		119
Total		229
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		1
Term loans by origination year, 2016		1
Term loans by origination year, Prior		15
Revolving loans		28
Revolving loans converted to term loans		58
Total		103
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		8
Revolving loans		19
Revolving loans converted to term loans		32
Total		59
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		6
Revolving loans		17
Revolving loans converted to term loans		44
Total		67
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		1
Term loans by origination year, Prior		16
Revolving loans		10
Revolving loans converted to term loans		125
Total		152
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			29,496
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Total			28,870
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Total			216
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Total			115
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Total			69
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Total			71
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Total			155
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			0
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Total			0
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Total			0
Real estate 1-4 family junior lien mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			13
Credit card [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		38,268
Revolving loans converted to term loans		314
Total		38,582	41,013
Credit card [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		528	546
Credit card [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		37,320
Revolving loans converted to term loans		259
Total		37,579
Credit card [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		260
Revolving loans converted to term loans		18
Total		278
Credit card [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		184
Revolving loans converted to term loans		13
Total		197
Credit card [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		167
Revolving loans converted to term loans		14
Total		181
Credit card [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		335
Revolving loans converted to term loans		10
Total		345
Credit card [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		2
Revolving loans converted to term loans		0
Total		2
Credit card [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			41,013
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Total			39,935
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Total			311
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Total			221
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Total			202
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Total			343
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Total			1
Credit card [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			0
Credit card [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Total			0
Credit card [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Total			0
Credit card [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			0
Automobile [Member]
By delinquency status:
Term loans by origination year, 2020		6,342
Term loans by origination year, 2019		19,907
Term loans by origination year, 2018		9,272
Term loans by origination year, 2017		5,661
Term loans by origination year, 2016		5,093
Term loans by origination year, Prior		2,293
Revolving loans		0
Revolving loans converted to term loans		0
Total		48,568	47,873
Automobile [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		69	78
Automobile [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		6,334
Term loans by origination year, 2019		19,682
Term loans by origination year, 2018		9,085
Term loans by origination year, 2017		5,509
Term loans by origination year, 2016		4,857
Term loans by origination year, Prior		2,145
Revolving loans		0
Revolving loans converted to term loans		0
Total		47,612
Automobile [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		158
Term loans by origination year, 2018		134
Term loans by origination year, 2017		111
Term loans by origination year, 2016		168
Term loans by origination year, Prior		104
Revolving loans		0
Revolving loans converted to term loans		0
Total		683
Automobile [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		49
Term loans by origination year, 2018		40
Term loans by origination year, 2017		32
Term loans by origination year, 2016		53
Term loans by origination year, Prior		34
Revolving loans		0
Revolving loans converted to term loans		0
Total		208
Automobile [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		18
Term loans by origination year, 2018		13
Term loans by origination year, 2017		9
Term loans by origination year, 2016		15
Term loans by origination year, Prior		10
Revolving loans		0
Revolving loans converted to term loans		0
Total		65
Automobile [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		0
Revolving loans converted to term loans		0
Total		0
Automobile [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		0
Revolving loans converted to term loans		0
Total		0
Automobile [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			47,873
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Total			46,650
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Total			882
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Total			263
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Total			77
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Total			1
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Total			0
Automobile [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			0
Automobile [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Total			0
Automobile [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Total			0
Automobile [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			0
Other revolving credit and installment [Member]
By delinquency status:
Term loans by origination year, 2020		949
Term loans by origination year, 2019		3,598
Term loans by origination year, 2018		2,229
Term loans by origination year, 2017		1,491
Term loans by origination year, 2016		1,318
Term loans by origination year, Prior		5,881
Revolving loans		17,820
Revolving loans converted to term loans		225
Total		33,511	34,304
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 days or more past due and still accruing		78	87
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		948
Term loans by origination year, 2019		3,580
Term loans by origination year, 2018		2,207
Term loans by origination year, 2017		1,468
Term loans by origination year, 2016		1,298
Term loans by origination year, Prior		5,751
Revolving loans		17,766
Revolving loans converted to term loans		202
Total		33,220
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		1
Term loans by origination year, 2019		9
Term loans by origination year, 2018		10
Term loans by origination year, 2017		12
Term loans by origination year, 2016		9
Term loans by origination year, Prior		66
Revolving loans		19
Revolving loans converted to term loans		7
Total		133
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		5
Term loans by origination year, 2018		6
Term loans by origination year, 2017		5
Term loans by origination year, 2016		5
Term loans by origination year, Prior		32
Revolving loans		9
Revolving loans converted to term loans		4
Total		66
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		4
Term loans by origination year, 2018		6
Term loans by origination year, 2017		6
Term loans by origination year, 2016		6
Term loans by origination year, Prior		31
Revolving loans		9
Revolving loans converted to term loans		3
Total		65
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		15
Revolving loans converted to term loans		2
Total		17
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		1
Revolving loans		2
Revolving loans converted to term loans		7
Total		$ 10
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member]
By delinquency status:
Total			34,304
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | Current-29 days past due [Member]
By delinquency status:
Total			33,981
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 30-59 days past due [Member]
By delinquency status:
Total			140
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 60 to 89 days past due [Member]
By delinquency status:
Total			81
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 90-119 days past due [Member]
By delinquency status:
Total			74
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 120-179 days past due member [Member]
By delinquency status:
Total			18
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | 180 plus days past due [Member]
By delinquency status:
Total			10
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By delinquency status:
Total			0
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Loans held at fair value [Member]
By delinquency status:
Total			0
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member] | Portion at other than fair value measurement [Member]
By delinquency status:
Total			0
Other revolving credit and installment [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By delinquency status:
Total			$ 0
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance _12

Loans and Related Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
By FICO:
Total	[1]	$ 1,009,843	$ 962,265
Purchase credit deteriorated [Member]
By FICO:
Total			568
Total Consumer [Member]
By FICO:
Term loans by origination year, 2020		21,555
Term loans by origination year, 2019		82,693
Term loans by origination year, 2018		36,793
Term loans by origination year, 2017		43,712
Term loans by origination year, 2016		48,161
Term loans by origination year, Prior		115,472
Revolving loans		83,479
Revolving loans converted to term loans		10,243
Total		442,108	446,546
Total Consumer [Member] | FICO not required [Member]
By FICO:
Total		8,900	9,100
Total Consumer [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			445,978
Total Consumer [Member] | Not purchased credit deteriorated [Member] | FICO not required [Member]
By FICO:
Total			9,100
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Total			14,546
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Total			10,927
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Total			21,247
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Total			36,851
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Total			52,598
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Total			85,229
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Total			196,833
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Total			7,502
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Total			9,075
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			11,170
Total Consumer [Member] | Purchase credit deteriorated [Member]
By FICO:
Total			568
Total Consumer [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			$ 568
Total Consumer [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Unpaid principal balance, percent of FICO score			19.00%
Total Consumer [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 680 [Member]
By FICO:
Unpaid principal balance, percent of FICO score			41.00%
Residential mortgage [Member]
By FICO:
Term loans by origination year, 2020		14,264
Term loans by origination year, 2019		59,188
Term loans by origination year, 2018		25,292
Term loans by origination year, 2017		36,560
Term loans by origination year, 2016		41,750
Term loans by origination year, Prior		107,298
Revolving loans		27,391
Revolving loans converted to term loans		9,704
Total		321,447	$ 323,356
Residential mortgage [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			322,788
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			11,170
Residential mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			568
Real estate 1-4 family first mortgage [Member]
By FICO:
Term loans by origination year, 2020		14,256
Term loans by origination year, 2019		59,144
Term loans by origination year, 2018		25,241
Term loans by origination year, 2017		36,511
Term loans by origination year, 2016		41,709
Term loans by origination year, Prior		105,728
Revolving loans		8,063
Revolving loans converted to term loans		2,268
Total		292,920	293,847
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Term loans by origination year, 2020		2
Term loans by origination year, 2019		27
Term loans by origination year, 2018		43
Term loans by origination year, 2017		60
Term loans by origination year, 2016		92
Term loans by origination year, Prior		2,643
Revolving loans		209
Revolving loans converted to term loans		229
Total		3,305
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Term loans by origination year, 2020		10
Term loans by origination year, 2019		105
Term loans by origination year, 2018		67
Term loans by origination year, 2017		68
Term loans by origination year, 2016		128
Term loans by origination year, Prior		1,663
Revolving loans		148
Revolving loans converted to term loans		115
Total		2,304
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Term loans by origination year, 2020		80
Term loans by origination year, 2019		481
Term loans by origination year, 2018		297
Term loans by origination year, 2017		311
Term loans by origination year, 2016		368
Term loans by origination year, Prior		3,075
Revolving loans		298
Revolving loans converted to term loans		171
Total		5,081
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Term loans by origination year, 2020		458
Term loans by origination year, 2019		1,870
Term loans by origination year, 2018		905
Term loans by origination year, 2017		1,181
Term loans by origination year, 2016		1,301
Term loans by origination year, Prior		5,847
Revolving loans		665
Revolving loans converted to term loans		264
Total		12,491
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Term loans by origination year, 2020		1,896
Term loans by origination year, 2019		6,104
Term loans by origination year, 2018		2,198
Term loans by origination year, 2017		2,901
Term loans by origination year, 2016		3,147
Term loans by origination year, Prior		9,491
Revolving loans		1,024
Revolving loans converted to term loans		291
Total		27,052
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Term loans by origination year, 2020		6,242
Term loans by origination year, 2019		16,885
Term loans by origination year, 2018		5,542
Term loans by origination year, 2017		7,135
Term loans by origination year, 2016		7,458
Term loans by origination year, Prior		15,595
Revolving loans		1,609
Revolving loans converted to term loans		298
Total		60,764
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Term loans by origination year, 2020		5,522
Term loans by origination year, 2019		33,344
Term loans by origination year, 2018		15,917
Term loans by origination year, 2017		24,461
Term loans by origination year, 2016		28,544
Term loans by origination year, Prior		55,278
Revolving loans		3,824
Revolving loans converted to term loans		512
Total		167,402
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Term loans by origination year, 2020		45
Term loans by origination year, 2019		296
Term loans by origination year, 2018		122
Term loans by origination year, 2017		123
Term loans by origination year, 2016		173
Term loans by origination year, Prior		2,249
Revolving loans		286
Revolving loans converted to term loans		388
Total		3,682
Real estate 1-4 family first mortgage [Member] | Government insured or guaranteed [Member]
By FICO:
Term loans by origination year, 2020		1
Term loans by origination year, 2019		32
Term loans by origination year, 2018		150
Term loans by origination year, 2017		271
Term loans by origination year, 2016		498
Term loans by origination year, Prior		9,887
Revolving loans		0
Revolving loans converted to term loans		0
Total		10,839
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			293,292
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Total			3,264
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Total			2,392
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Total			5,068
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Total			12,844
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Total			27,879
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Total			61,559
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Total			165,460
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Total			3,656
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Total			0
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			11,170
Real estate 1-4 family first mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			555
Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		44
Term loans by origination year, 2018		51
Term loans by origination year, 2017		49
Term loans by origination year, 2016		41
Term loans by origination year, Prior		1,570
Revolving loans		19,328
Revolving loans converted to term loans		7,436
Total		28,527	29,509
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		133
Revolving loans		370
Revolving loans converted to term loans		611
Total		1,114
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		82
Revolving loans		310
Revolving loans converted to term loans		361
Total		753
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		134
Revolving loans		686
Revolving loans converted to term loans		610
Total		1,430
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		250
Revolving loans		1,697
Revolving loans converted to term loans		1,102
Total		3,049
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		274
Revolving loans		2,751
Revolving loans converted to term loans		1,243
Total		4,268
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		228
Revolving loans		3,785
Revolving loans converted to term loans		1,198
Total		5,211
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		359
Revolving loans		9,220
Revolving loans converted to term loans		2,009
Total		11,588
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		44
Term loans by origination year, 2018		51
Term loans by origination year, 2017		49
Term loans by origination year, 2016		41
Term loans by origination year, Prior		110
Revolving loans		509
Revolving loans converted to term loans		302
Total		1,114
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			29,496
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Total			1,164
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Total			782
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Total			1,499
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Total			3,192
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Total			4,407
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Total			5,483
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Total			11,851
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Total			1,118
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Total			0
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			0
Real estate 1-4 family junior lien mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			13
Credit card [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		38,268
Revolving loans converted to term loans		314
Total		38,582	41,013
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		3,117
Revolving loans converted to term loans		119
Total		3,236
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		2,657
Revolving loans converted to term loans		49
Total		2,706
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		6,291
Revolving loans converted to term loans		61
Total		6,352
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		9,324
Revolving loans converted to term loans		53
Total		9,377
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		7,866
Revolving loans converted to term loans		24
Total		7,890
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		5,176
Revolving loans converted to term loans		6
Total		5,182
Credit card [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		3,678
Revolving loans converted to term loans		1
Total		3,679
Credit card [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		159
Revolving loans converted to term loans		1
Total		160
Credit card [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			41,013
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Total			3,373
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Total			2,853
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Total			6,626
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Total			9,732
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Total			8,376
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Total			5,648
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Total			4,037
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Total			368
Credit card [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Total			0
Credit card [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			0
Credit card [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			0
Automobile [Member]
By FICO:
Term loans by origination year, 2020		6,342
Term loans by origination year, 2019		19,907
Term loans by origination year, 2018		9,272
Term loans by origination year, 2017		5,661
Term loans by origination year, 2016		5,093
Term loans by origination year, Prior		2,293
Revolving loans		0
Revolving loans converted to term loans		0
Total		48,568	47,873
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Term loans by origination year, 2020		419
Term loans by origination year, 2019		2,045
Term loans by origination year, 2018		1,163
Term loans by origination year, 2017		825
Term loans by origination year, 2016		1,082
Term loans by origination year, Prior		541
Revolving loans		0
Revolving loans converted to term loans		0
Total		6,075
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Term loans by origination year, 2020		687
Term loans by origination year, 2019		1,849
Term loans by origination year, 2018		715
Term loans by origination year, 2017		425
Term loans by origination year, 2016		453
Term loans by origination year, Prior		216
Revolving loans		0
Revolving loans converted to term loans		0
Total		4,345
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Term loans by origination year, 2020		1,031
Term loans by origination year, 2019		2,830
Term loans by origination year, 2018		1,168
Term loans by origination year, 2017		644
Term loans by origination year, 2016		596
Term loans by origination year, Prior		262
Revolving loans		0
Revolving loans converted to term loans		0
Total		6,531
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Term loans by origination year, 2020		1,104
Term loans by origination year, 2019		3,383
Term loans by origination year, 2018		1,549
Term loans by origination year, 2017		885
Term loans by origination year, 2016		749
Term loans by origination year, Prior		318
Revolving loans		0
Revolving loans converted to term loans		0
Total		7,988
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Term loans by origination year, 2020		1,045
Term loans by origination year, 2019		3,334
Term loans by origination year, 2018		1,554
Term loans by origination year, 2017		911
Term loans by origination year, 2016		723
Term loans by origination year, Prior		312
Revolving loans		0
Revolving loans converted to term loans		0
Total		7,879
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Term loans by origination year, 2020		991
Term loans by origination year, 2019		3,335
Term loans by origination year, 2018		1,533
Term loans by origination year, 2017		890
Term loans by origination year, 2016		652
Term loans by origination year, Prior		270
Revolving loans		0
Revolving loans converted to term loans		0
Total		7,671
Automobile [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Term loans by origination year, 2020		1,065
Term loans by origination year, 2019		3,112
Term loans by origination year, 2018		1,580
Term loans by origination year, 2017		1,064
Term loans by origination year, 2016		808
Term loans by origination year, Prior		349
Revolving loans		0
Revolving loans converted to term loans		0
Total		7,978
Automobile [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		19
Term loans by origination year, 2018		10
Term loans by origination year, 2017		17
Term loans by origination year, 2016		30
Term loans by origination year, Prior		25
Revolving loans		0
Revolving loans converted to term loans		0
Total		101
Automobile [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			47,873
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Total			6,041
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Total			4,230
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Total			6,324
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Total			7,871
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Total			7,839
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Total			7,624
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Total			7,900
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Total			44
Automobile [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Total			0
Automobile [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			0
Automobile [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			0
Other revolving credit and installment [Member]
By FICO:
Term loans by origination year, 2020		949
Term loans by origination year, 2019		3,598
Term loans by origination year, 2018		2,229
Term loans by origination year, 2017		1,491
Term loans by origination year, 2016		1,318
Term loans by origination year, Prior		5,881
Revolving loans		17,820
Revolving loans converted to term loans		225
Total		33,511	34,304
Other revolving credit and installment [Member] | FICO not required [Member]
By FICO:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		0
Revolving loans		8,936
Revolving loans converted to term loans		0
Total		8,936
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Term loans by origination year, 2020		3
Term loans by origination year, 2019		49
Term loans by origination year, 2018		65
Term loans by origination year, 2017		50
Term loans by origination year, 2016		47
Term loans by origination year, Prior		204
Revolving loans		219
Revolving loans converted to term loans		27
Total		664
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Term loans by origination year, 2020		12
Term loans by origination year, 2019		66
Term loans by origination year, 2018		59
Term loans by origination year, 2017		40
Term loans by origination year, 2016		41
Term loans by origination year, Prior		198
Revolving loans		188
Revolving loans converted to term loans		15
Total		619
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Term loans by origination year, 2020		51
Term loans by origination year, 2019		226
Term loans by origination year, 2018		169
Term loans by origination year, 2017		105
Term loans by origination year, 2016		96
Term loans by origination year, Prior		410
Revolving loans		525
Revolving loans converted to term loans		23
Total		1,605
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Term loans by origination year, 2020		124
Term loans by origination year, 2019		472
Term loans by origination year, 2018		310
Term loans by origination year, 2017		195
Term loans by origination year, 2016		172
Term loans by origination year, Prior		719
Revolving loans		1,005
Revolving loans converted to term loans		29
Total		3,026
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Term loans by origination year, 2020		191
Term loans by origination year, 2019		683
Term loans by origination year, 2018		399
Term loans by origination year, 2017		248
Term loans by origination year, 2016		226
Term loans by origination year, Prior		969
Revolving loans		1,169
Revolving loans converted to term loans		28
Total		3,913
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Term loans by origination year, 2020		249
Term loans by origination year, 2019		857
Term loans by origination year, 2018		445
Term loans by origination year, 2017		288
Term loans by origination year, 2016		265
Term loans by origination year, Prior		1,179
Revolving loans		1,524
Revolving loans converted to term loans		18
Total		4,825
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Term loans by origination year, 2020		274
Term loans by origination year, 2019		1,024
Term loans by origination year, 2018		621
Term loans by origination year, 2017		452
Term loans by origination year, 2016		453
Term loans by origination year, Prior		2,118
Revolving loans		2,690
Revolving loans converted to term loans		44
Total		7,676
Other revolving credit and installment [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Term loans by origination year, 2020		45
Term loans by origination year, 2019		221
Term loans by origination year, 2018		161
Term loans by origination year, 2017		113
Term loans by origination year, 2016		18
Term loans by origination year, Prior		84
Revolving loans		1,564
Revolving loans converted to term loans		41
Total		$ 2,247
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member]
By FICO:
Total			34,304
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO less than 600 [Member]
By FICO:
Total			704
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 600-639 [Member]
By FICO:
Total			670
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 640-679 [Member]
By FICO:
Total			1,730
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 680-719 [Member]
By FICO:
Total			3,212
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 720-759 [Member]
By FICO:
Total			4,097
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 760-799 [Member]
By FICO:
Total			4,915
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO 800 or more [Member]
By FICO:
Total			7,585
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No FICO available [Member]
By FICO:
Total			2,316
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | FICO not required [Member]
By FICO:
Total			9,075
Other revolving credit and installment [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By FICO:
Total			0
Other revolving credit and installment [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By FICO:
Total			$ 0
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance _13

Loans and Related Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
High value properties, threshold		$ 1
By LTV/CLTV:
Total	[1]	1,009,843	$ 962,265
Purchase credit deteriorated [Member]
By LTV/CLTV:
Total			568
Total Consumer [Member]
By LTV/CLTV:
Term loans by origination year, 2020		21,555
Term loans by origination year, 2019		82,693
Term loans by origination year, 2018		36,793
Term loans by origination year, 2017		43,712
Term loans by origination year, 2016		48,161
Term loans by origination year, Prior		115,472
Revolving loans		83,479
Revolving loans converted to term loans		10,243
Total		442,108	446,546
Total Consumer [Member] | Not purchased credit deteriorated [Member]
By LTV/CLTV:
Total			445,978
Total Consumer [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Total			11,170
Total Consumer [Member] | Purchase credit deteriorated [Member]
By LTV/CLTV:
Total			568
Total Consumer [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Total			$ 568
Total Consumer [Member] | Purchase credit deteriorated [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			9.00%
Residential mortgage [Member]
By LTV/CLTV:
Term loans by origination year, 2020		14,264
Term loans by origination year, 2019		59,188
Term loans by origination year, 2018		25,292
Term loans by origination year, 2017		36,560
Term loans by origination year, 2016		41,750
Term loans by origination year, Prior		107,298
Revolving loans		27,391
Revolving loans converted to term loans		9,704
Total		321,447	$ 323,356
Residential mortgage [Member] | Not purchased credit deteriorated [Member]
By LTV/CLTV:
Total			322,788
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Total			166,081
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Total			124,458
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Total			17,441
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Total			1,838
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Total			674
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Total			1,126
Residential mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Total			11,170
Residential mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Total			568
Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Term loans by origination year, 2020		14,256
Term loans by origination year, 2019		59,144
Term loans by origination year, 2018		25,241
Term loans by origination year, 2017		36,511
Term loans by origination year, 2016		41,709
Term loans by origination year, Prior		105,728
Revolving loans		8,063
Revolving loans converted to term loans		2,268
Total		292,920	293,847
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		4,143
Term loans by origination year, 2019		16,842
Term loans by origination year, 2018		8,032
Term loans by origination year, 2017		14,961
Term loans by origination year, 2016		22,878
Term loans by origination year, Prior		76,122
Revolving loans		5,503
Revolving loans converted to term loans		1,644
Total		150,125
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		9,526
Term loans by origination year, 2019		34,239
Term loans by origination year, 2018		14,133
Term loans by origination year, 2017		19,674
Term loans by origination year, 2016		17,326
Term loans by origination year, Prior		17,228
Revolving loans		1,672
Revolving loans converted to term loans		401
Total		114,199
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		544
Term loans by origination year, 2019		7,791
Term loans by origination year, 2018		2,714
Term loans by origination year, 2017		1,412
Term loans by origination year, 2016		814
Term loans by origination year, Prior		1,757
Revolving loans		585
Revolving loans converted to term loans		155
Total		15,772
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		80
Term loans by origination year, 2018		96
Term loans by origination year, 2017		86
Term loans by origination year, 2016		72
Term loans by origination year, Prior		310
Revolving loans		169
Revolving loans converted to term loans		39
Total		852
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		47
Term loans by origination year, 2018		29
Term loans by origination year, 2017		27
Term loans by origination year, 2016		29
Term loans by origination year, Prior		124
Revolving loans		71
Revolving loans converted to term loans		14
Total		341
Real estate 1-4 family first mortgage [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Term loans by origination year, 2020		42
Term loans by origination year, 2019		113
Term loans by origination year, 2018		87
Term loans by origination year, 2017		80
Term loans by origination year, 2016		92
Term loans by origination year, Prior		300
Revolving loans		63
Revolving loans converted to term loans		15
Total		792
Real estate 1-4 family first mortgage [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Term loans by origination year, 2020		1
Term loans by origination year, 2019		32
Term loans by origination year, 2018		150
Term loans by origination year, 2017		271
Term loans by origination year, 2016		498
Term loans by origination year, Prior		9,887
Revolving loans		0
Revolving loans converted to term loans		0
Total		10,839
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member]
By LTV/CLTV:
Total			293,292
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Total			151,478
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Total			114,795
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Total			13,867
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Total			860
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Total			338
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Total			784
Real estate 1-4 family first mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Total			11,170
Real estate 1-4 family first mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Total			555
Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		44
Term loans by origination year, 2018		51
Term loans by origination year, 2017		49
Term loans by origination year, 2016		41
Term loans by origination year, Prior		1,570
Revolving loans		19,328
Revolving loans converted to term loans		7,436
Total		28,527	29,509
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		634
Revolving loans		9,526
Revolving loans converted to term loans		4,023
Total		14,183
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		450
Revolving loans		6,827
Revolving loans converted to term loans		2,055
Total		9,332
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		290
Revolving loans		2,165
Revolving loans converted to term loans		971
Total		3,426
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		102
Revolving loans		566
Revolving loans converted to term loans		262
Total		930
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Term loans by origination year, 2020		0
Term loans by origination year, 2019		0
Term loans by origination year, 2018		0
Term loans by origination year, 2017		0
Term loans by origination year, 2016		0
Term loans by origination year, Prior		33
Revolving loans		216
Revolving loans converted to term loans		80
Total		329
Real estate 1-4 family junior lien mortgage [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Term loans by origination year, 2020		8
Term loans by origination year, 2019		44
Term loans by origination year, 2018		51
Term loans by origination year, 2017		49
Term loans by origination year, 2016		41
Term loans by origination year, Prior		61
Revolving loans		28
Revolving loans converted to term loans		45
Total		$ 327
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member]
By LTV/CLTV:
Total			29,496
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 0-60% [Member]
By LTV/CLTV:
Total			14,603
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 60.01-80% [Member]
By LTV/CLTV:
Total			9,663
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 80.01-100% [Member]
By LTV/CLTV:
Total			3,574
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV 100.01-120% [Member]
By LTV/CLTV:
Total			978
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | LTV greater than 120% [Member]
By LTV/CLTV:
Total			336
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Non-government insured/guaranteed [Member] | No LTV/CLTV available [Member]
By LTV/CLTV:
Total			342
Real estate 1-4 family junior lien mortgage [Member] | Not purchased credit deteriorated [Member] | Government insured or guaranteed [Member]
By LTV/CLTV:
Total			0
Real estate 1-4 family junior lien mortgage [Member] | Purchase credit deteriorated [Member] | Non-government insured/guaranteed [Member]
By LTV/CLTV:
Total			$ 13
[1]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.

Loans and Related Allowance _14

Loans and Related Allowance for Credit Losses, Nonaccrual (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Nonaccrual Loans [Abstract]
Nonaccrual loans	$ 6,156
Nonaccrual loans without related allowance for credit losses (2)	2,265
Recognized interest income	92
Total Commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	2,875	$ 2,254
Nonaccrual loans without related allowance for credit losses (2)	452
Recognized interest income	28
Commercial and industrial loans [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	1,779	1,545
Nonaccrual loans without related allowance for credit losses (2)	243
Recognized interest income	16
Commercial real estate mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	944	573
Nonaccrual loans without related allowance for credit losses (2)	194
Recognized interest income	8
Commercial real estate construction [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	21	41
Nonaccrual loans without related allowance for credit losses (2)	5
Recognized interest income	4
Commercial lease financing receivable [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	131	95
Nonaccrual loans without related allowance for credit losses (2)	10
Recognized interest income	0
Total Consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	3,281
Nonaccrual loans without related allowance for credit losses (2)	1,813
Recognized interest income	64
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans in process of foreclosure, amount	3,400	3,500
Real estate 1-4 family first mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	2,372
Nonaccrual loans without related allowance for credit losses (2)	1,382
Recognized interest income	44
Real estate 1-4 family junior lien mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	769
Nonaccrual loans without related allowance for credit losses (2)	431
Recognized interest income	16
Automobile [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	99
Nonaccrual loans without related allowance for credit losses (2)	0
Recognized interest income	3
Other revolving credit and installment [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	41
Nonaccrual loans without related allowance for credit losses (2)	0
Recognized interest income	1
Government guaranteed mortgage loans upon foreclosure receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans in process of foreclosure, amount	$ 2,700	2,800
Not purchased credit deteriorated [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		5,346
Not purchased credit deteriorated [Member] | Total Commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		2,254
Not purchased credit deteriorated [Member] | Commercial and industrial loans [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		1,545
Not purchased credit deteriorated [Member] | Commercial real estate mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		573
Not purchased credit deteriorated [Member] | Commercial real estate construction [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		41
Not purchased credit deteriorated [Member] | Commercial lease financing receivable [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		95
Not purchased credit deteriorated [Member] | Total Consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		3,092
Not purchased credit deteriorated [Member] | Real estate 1-4 family first mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		2,150
Not purchased credit deteriorated [Member] | Real estate 1-4 family junior lien mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		796
Not purchased credit deteriorated [Member] | Automobile [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		106
Not purchased credit deteriorated [Member] | Other revolving credit and installment [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans		$ 40

Loans and Related Allowance _15

Loans and Related Allowance for Credit Losses, 90 Days or More Past Due and Still Accruing (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	$ 7,023	$ 7,285
Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	881	933
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	53	78
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	24	47
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	31
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	1	0
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	828	855
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	128	112
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	25	32
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	528	546
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	69	78
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	78	87
Government insured or guaranteed [Member]
Loans 90 days or more past due and still accruing:
90 days or more past due and still accruing	$ 6,142	$ 6,352

Loans and Related Allowance _16

Loans and Related Allowance for Credit Losses, Impaired Loans (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Trial modifications	$ 11,600	$ 11,800
Loans and leases receivable, impaired, commitment to lend	$ 403	500
Total Consumer [Member] | Trial modifications [Member]
Financing Receivable, Impaired [Line Items]
Trial modifications		115
Not purchased credit deteriorated [Member]
Impaired Loans [Abstract]
Unpaid principal balance		14,670
Impaired loans		13,030
Impaired loans with related allowance for credit losses		8,927
Related allowance for credit losses		1,314
Not purchased credit deteriorated [Member] | Total Commercial [Member]
Impaired Loans [Abstract]
Unpaid principal balance		4,141
Impaired loans		3,133
Impaired loans with related allowance for credit losses		2,852
Related allowance for credit losses		467
Not purchased credit deteriorated [Member] | Commercial and industrial loans [Member]
Impaired Loans [Abstract]
Unpaid principal balance		2,792
Impaired loans		2,003
Impaired loans with related allowance for credit losses		1,903
Related allowance for credit losses		311
Not purchased credit deteriorated [Member] | Commercial real estate mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance		1,137
Impaired loans		974
Impaired loans with related allowance for credit losses		803
Related allowance for credit losses		110
Not purchased credit deteriorated [Member] | Commercial real estate construction [Member]
Impaired Loans [Abstract]
Unpaid principal balance		81
Impaired loans		51
Impaired loans with related allowance for credit losses		41
Related allowance for credit losses		11
Not purchased credit deteriorated [Member] | Commercial lease financing receivable [Member]
Impaired Loans [Abstract]
Unpaid principal balance		131
Impaired loans		105
Impaired loans with related allowance for credit losses		105
Related allowance for credit losses		35
Not purchased credit deteriorated [Member] | Total Consumer [Member]
Impaired Loans [Abstract]
Unpaid principal balance		10,529
Impaired loans		9,897
Impaired loans with related allowance for credit losses		6,075
Related allowance for credit losses		847
Not purchased credit deteriorated [Member] | Residential mortgage [Member] | Government insured or guaranteed [Member]
Impaired Loans [Abstract]
Impaired loans		1,200
Not purchased credit deteriorated [Member] | Real estate 1-4 family first mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance		8,107
Impaired loans		7,674
Impaired loans with related allowance for credit losses		4,433
Related allowance for credit losses		437
Not purchased credit deteriorated [Member] | Real estate 1-4 family junior lien mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance		1,586
Impaired loans		1,451
Impaired loans with related allowance for credit losses		925
Related allowance for credit losses		144
Not purchased credit deteriorated [Member] | Credit card [Member]
Impaired Loans [Abstract]
Unpaid principal balance		520
Impaired loans		520
Impaired loans with related allowance for credit losses		520
Related allowance for credit losses		209
Not purchased credit deteriorated [Member] | Automobile [Member]
Impaired Loans [Abstract]
Unpaid principal balance		138
Impaired loans		81
Impaired loans with related allowance for credit losses		42
Related allowance for credit losses		8
Not purchased credit deteriorated [Member] | Other revolving credit and installment [Member]
Impaired Loans [Abstract]
Unpaid principal balance		178
Impaired loans		171
Impaired loans with related allowance for credit losses		155
Related allowance for credit losses		$ 49

Loans and Related Allowance _17

Loans and Related Allowance for Credit Losses, Impaired Loans, Average Recorded Investment and Interest Income (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	$ 14,713
Recognized interest income	889
Interest income:
Cash basis of accounting	241
Other	648
Total Commercial [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	3,362
Recognized interest income	195
Commercial and industrial loans [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	2,150
Recognized interest income	129
Commercial real estate mortgage [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	1,067
Recognized interest income	59
Commercial real estate construction [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	52
Recognized interest income	6
Commercial lease financing receivable [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	93
Recognized interest income	1
Total Consumer [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	11,351
Recognized interest income	694
Real estate 1-4 family first mortgage [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	9,031
Recognized interest income	506
Real estate 1-4 family junior lien mortgage [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	1,586
Recognized interest income	99
Credit card [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	488
Recognized interest income	64
Automobile [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	84
Recognized interest income	12
Other revolving credit and installment [Member]
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment	162
Recognized interest income	$ 13

Loans and Related Allowance _18

Loans and Related Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, troubled debt restructuring	$ 11,600		$ 11,800
Primary modification type
Financing receivable, troubled debt restructuring, post modification	854	$ 1,139
Financial effects of modifications
Charge-offs	$ 50	$ 21
Weighted average interest rate reduction	8.38%	9.44%
Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 518	$ 643
Financial effects of modifications
Charge-offs	$ 44	$ 13
Weighted average interest rate reduction	0.82%	0.73%
Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 347	$ 565
Financial effects of modifications
Charge-offs	$ 44	$ 13
Weighted average interest rate reduction	0.65%	0.68%
Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 165	$ 75
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	0.97%	0.95%
Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 6	$ 3
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	2.49%	0.00%
Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 0	$ 0
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%
Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 336	$ 496
Loan restructuring, trial modifications, amount	2	0
Financial effects of modifications
Charge-offs	$ 6	$ 8
Weighted average interest rate reduction	10.00%	10.27%
Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 190	$ 332
Financial effects of modifications
Charge-offs	$ 0	$ 1
Weighted average interest rate reduction	1.63%	1.95%
Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 21	$ 38
Financial effects of modifications
Charge-offs	$ 0	$ 1
Weighted average interest rate reduction	2.38%	2.29%
Credit card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 95	$ 97
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	12.33%	13.20%
Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 14	$ 15
Financial effects of modifications
Charge-offs	$ 6	$ 6
Weighted average interest rate reduction	4.69%	5.38%
Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 14	$ 14
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	8.22%	7.58%
Modification to principal [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 42	$ 39
Financial effects of modifications
Charge-offs	29	3
Modification to principal [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	18	0
Modification to principal [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	18	0
Modification to principal [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification to principal [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification to principal [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification to principal [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	24	39
Loan restructuring, trial modifications, amount	0	0
Modification to principal [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	21	35
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
Modification to principal [Member] | Credit card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification to principal [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	2
Modification to principal [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification, interest rate reduction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	146	136
Modification, interest rate reduction [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	28	13
Modification, interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	15	11
Modification, interest rate reduction [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	13	2
Modification, interest rate reduction [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification, interest rate reduction [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification, interest rate reduction [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	118	123
Loan restructuring, trial modifications, amount	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	3	3
Modification, interest rate reduction [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	6	11
Modification, interest rate reduction [Member] | Credit card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	95	97
Modification, interest rate reduction [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	1
Modification, interest rate reduction [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	12	11
Modification, other concessions [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	666	964
Modification, other concessions [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	472	630
Modification, other concessions [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	314	554
Modification, other concessions [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	152	73
Modification, other concessions [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	6	3
Modification, other concessions [Member] | Commercial lease financing receivable [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification, other concessions [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	194	334
Loan restructuring, trial modifications, amount	2	0
Modification, other concessions [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	166	294
Modification, other concessions [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	14	25
Modification, other concessions [Member] | Credit card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	0
Modification, other concessions [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	10	12
Modification, other concessions [Member] | Other revolving credit and installment [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	3
Trial modifications [Member] | Total Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, troubled debt restructuring			$ 115
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%
Modification, recorded investment related to interest rate reduction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 160	$ 153
Modification, recorded investment related to interest rate reduction [Member] | Total Commercial [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	28	13
Modification, recorded investment related to interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	15	11
Modification, recorded investment related to interest rate reduction [Member] | Commercial real estate mortgage [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	13	2
Modification, recorded investment related to interest rate reduction [Member] | Commercial real estate construction [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	0	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
Modification, recorded investment related to interest rate reduction [Member] | Total Consumer [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	132	140
Loan restructuring, trial modifications, amount	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	17	19
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	6	12
Modification, recorded investment related to interest rate reduction [Member] | Credit card [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	95	97
Modification, recorded investment related to interest rate reduction [Member] | Automobile [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	2	1
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	12	11
Loans remodified [Member]
Primary modification type
Financing receivable, troubled debt restructuring, post modification	$ 263	$ 360

Loans and Related Allowance _19

Loans and Related Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 247	$ 96
Total Commercial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	206	54
Commercial and industrial loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	185	23
Commercial real estate mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	21	28
Commercial real estate construction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	0	3
Total Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	41	42
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	10	11
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	2	5
Credit card [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	26	21
Automobile [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	2	3
Other revolving credit and installment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 1	$ 2

Leasing Activity, Leasing Reven

Leasing Activity, Leasing Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Line Items]
Interest income on lease financing	$ 211	$ 223
Variable revenues on lease financing	27	24
Fixed revenues on operating leases	314	373
Variable revenues on operating leases	13	18
Lease income	352	443
Total leasing revenue	563	666
Assets leased to others [Member]
Leases [Line Items]
Other lease-related revenues	$ (2)	$ 28

Leasing Activity Leasing Activi

Leasing Activity Leasing Activity, Operating Lease Right of Use (ROU) Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
ROU assets	$ 4,650	$ 4,724
Lease liabilities	$ 5,224	$ 5,297

Leasing Activity Leasing Acti_2

Leasing Activity Leasing Activity, Lease Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Fixed lease expense – operating leases	$ 291	$ 297
Variable lease expense	66	73
Other	(14)	(8)
Total lease costs	$ 343	$ 362

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Equity Securities [Line Items]
Equity securities, carried at fair value		$ 28,176		$ 41,936
Equity securities	[1]	54,047		68,241
Equity Securities Disclosures Textual [Abstract]
Securities held as economic hedges related to deferred compensation plan obligations		3,100		3,800
Federal Reserve Bank and Federal Home Loan Bank stock		4,500		4,800
Loss from affordable housing projects, equity method investments		339	$ 273
Affordable housing tax credits and other tax benefits, amount		398	370
Affordable housing tax credits, amount		$ 314	$ 302
Affordable housing tax credits commitment, payment period		3 years
Qualified affordable housing project investments, commitment		$ 4,200		4,300
Held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		13,573		27,440
Not held for trading [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		14,603		14,496
Equity securities		40,474		40,801
Not held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		7,708		6,481
Not held for trading [Member] | Nonmarketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value		6,895		8,015
Not held for trading [Member] | Equity Method Investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		19,019		19,000
Not held for trading [Member] | Low-income housing tax credit investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		11,290		11,343
Not held for trading [Member] | Private equity [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		3,351		3,459
Not held for trading [Member] | Tax-advantaged renewable energy [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		3,991		3,811
Not held for trading [Member] | New market tax credit and other [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		387		387
Not held for trading [Member] | Federal Reserve Bank stock and other at cost [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		4,512		4,790
Not held for trading [Member] | Other [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value		$ 2,340		$ 2,515
[1]	(2) 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
	Mar. 31, 2020	Mar. 31, 2019
Net Gains (Losses) from Equity Securities [Line Items]
Total net gains (losses) from equity securities not held for trading	$ (1,401)	$ 814
Not designated as hedging instrument [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	7,082	(2,638)
Not designated as hedging instrument [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	1,219	(885)
Economic hedges [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	4,334	(71)
Economic hedges [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	1,219	(885)
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	(1,907)	1,313
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	(803)	377
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	(1,104)	936
Net gain (loss) from nonmarketable equity securities not carried at fair value	(713)	386
Nonmarketable equity securities [Member] | Impairment write-downs [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from nonmarketable equity securities not carried at fair value	(935)	(36)
Nonmarketable equity securities [Member] | Net unrealized gains related to 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	222	185
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	0	237
Nonmarketable equity securities [Member] | All other [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gain (loss) from nonmarketable equity securities not carried at fair value	$ 0	$ 0

Equity Securities, Gains (Losse

Equity Securities, Gains (Losses) Measurement Alternative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Net Gains (Losses) from Measurement Alternative Equity Securities
Total net gains (losses) recognized during the period	$ (1,401)	$ 814
Measurement alternative [Member] | Nonmarketable equity securities [Member]
Net Gains (Losses) from Measurement Alternative Equity Securities
Gross unrealized gains due to observable price changes	222	185
Gross unrealized losses due to observable price changes	0	0
Impairment write-downs	(354)	(22)
Realized net gains from sale	2	23
Total net gains (losses) recognized during the period	(130)	$ 186
Measurement Alternative Cumulative Gains (Losses)
Cumulative gross unrealized gains due to observable price changes	1,084		$ 973
Cumulative gross unrealized losses due to observable price changes	(42)		(42)
Cumulative impairment write-downs	$ (473)		$ (134)

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Components of Other Assets [Line Items]
Corporate/bank-owned life insurance	$ 20,128	$ 20,070
Accounts receivable	46,762	29,137
Interest receivable, AFS and HTM debt securities	1,705	1,729
Interest receivable, loans	3,038	3,099
Interest receivable, trading and other	708	758
Net carrying value	1,805	1,853
Foreclosed assets, other	72	81
Operating lease ROU assets (lessee)	4,650	4,724
Due from customers on acceptances	128	253
Other	10,269	10,200
Total other assets	96,163	78,917
Assets leased to others [Member]
Components of Other Assets [Line Items]
Other	8,124	8,221
Non-government insured/guaranteed [Member]
Components of Other Assets [Line Items]
Foreclosed assets, residential real estate	137	172
Government insured or guaranteed [Member]
Components of Other Assets [Line Items]
Foreclosed assets, residential real estate	43	50
Customer relationship and other amortized intangibles [Member]
Components of Other Assets [Line Items]
Net carrying value	$ 399	$ 423

Securitizations and Variable _3

Securitizations and Variable Interest Entities, Balance Sheet Transactions with VIEs (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Cash and due from banks		$ 22,738	$ 21,757
Interest-earning deposits with banks		128,071	119,493
Trading debt securities		80,425	79,733
Available-for-sale, fair value		251,229	263,459	[1]
Held-to-maturity, amortized cost, net		169,909	153,933	[1]
Loans	[2]	1,009,843	962,265
Derivative assets		25,023	14,203
Equity securities	[2]	54,047	68,241
Other assets		96,163	78,917
Total assets	[3]	1,981,349	1,927,555
Short-term borrowings		92,289	104,512
Derivative liabilities		15,618	9,079
Accrued expenses and other liabilities		76,238	75,163
Long-term debt		237,342	228,191
Total liabilities	[4]	1,798,019	1,739,571
Noncontrolling interests		612	838
Carrying amount [Member]
Variable Interest Entity [Line Items]
Cash and due from banks		22,738	21,757
Interest-earning deposits with banks		128,071	119,493
Held-to-maturity, amortized cost, net		169,909	153,933
Short-term borrowings		92,289	104,512
Long-term debt		237,311	228,159
VIEs that we do not consolidate [Member]
Variable Interest Entity [Line Items]
Total assets		1,304,088	1,314,630
VIEs that we do not consolidate [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Cash and due from banks		0	0
Interest-earning deposits with banks		0	0
Trading debt securities		1,326	792
Available-for-sale, fair value		1,718	1,696
Held-to-maturity, amortized cost, net		1,158	791
Loans		2,196	2,127
Mortgage servicing rights		8,709	11,884
Derivative assets		269	142
Equity securities		11,337	11,401
Other assets		1,030	1,268
Total assets		27,743	30,101
Short-term borrowings		0	0
Derivative liabilities		2	1
Accrued expenses and other liabilities		154	189
Long-term debt		4,722	4,817
Total liabilities		4,878	5,007
Noncontrolling interests		0	0
Net assets		22,865	25,094
VIEs that we consolidate [Member]
Variable Interest Entity [Line Items]
Total assets		14,208	14,505
VIEs that we consolidate [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Cash and due from banks		19	16
Interest-earning deposits with banks		0	284
Trading debt securities		316	339
Available-for-sale, fair value		300	201
Held-to-maturity, amortized cost, net		0	0
Loans		13,102	13,170
Mortgage servicing rights		0	0
Derivative assets		6	1
Equity securities		95	118
Other assets		258	239
Total assets		14,096	14,368
Short-term borrowings		500	401
Derivative liabilities		8	3
Accrued expenses and other liabilities		231	235
Long-term debt		235	587
Total liabilities		974	1,226
Noncontrolling interests		33	43
Net assets		13,089	13,099
Transfers that we account for as secured borrowings [Member]
Variable Interest Entity [Line Items]
Total assets		77	81
Transfers that we account for as secured borrowings [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Cash and due from banks		0	0
Interest-earning deposits with banks		0	0
Trading debt securities		0	0
Available-for-sale, fair value		0	0
Held-to-maturity, amortized cost, net		0	0
Loans		77	80
Mortgage servicing rights		0	0
Derivative assets		0	0
Equity securities		0	0
Other assets		0	0
Total assets		77	80
Short-term borrowings		0	0
Derivative liabilities		0	0
Accrued expenses and other liabilities		0	0
Long-term debt		76	79
Total liabilities		76	79
Noncontrolling interests		0	0
Net assets		1	1
Total VIEs and Transfers that we account for as secured borrowings [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Cash and due from banks		19	16
Interest-earning deposits with banks		0	284
Trading debt securities		1,642	1,131
Available-for-sale, fair value		2,018	1,897
Held-to-maturity, amortized cost, net		1,158	791
Loans		15,375	15,377
Mortgage servicing rights		8,709	11,884
Derivative assets		275	143
Equity securities		11,432	11,519
Other assets		1,288	1,507
Total assets		41,916	44,549
Short-term borrowings		500	401
Derivative liabilities		10	4
Accrued expenses and other liabilities		385	424
Long-term debt		5,033	5,483
Total liabilities		5,928	6,312
Noncontrolling interests		33	43
Net assets		$ 35,955	$ 38,194
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.
[2]	(2) Parenthetical amounts represent assets and liabilities that we are required to carry at fair value or have elected the fair value option.
[3]	(3) Our consolidated assets at March 31, 2020 , and December 31, 2019 , 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, $19 million and $16 million ; Interest-earning deposits with banks, $0 million and $284 million ; Debt securities, $616 million and $540 million ; Net loans, $13.1 billion and $13.2 billion ; Derivative assets, $6 million and $1 million ; Equity securities, $95 million and $118 million ; Other assets, $258 million and $239 million ; and Total assets, $14.1 billion and $14.4 billion , respectively.
[4]	(4) Our consolidated liabilities at March 31, 2020 , and December 31, 2019 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $300 million and $401 million ; Derivative liabilities, $8 million and $3 million ; Accrued expenses and other liabilities, $230 million and $235 million ; Long-term debt, $235 million and $587 million ; and Total liabilities, $773 million and $1.2 billion , respectively.

Securitizations and Variable _4

Securitizations and Variable Interest Entities, Unconsolidated VIEs (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Assets	[1]	$ 1,981,349	$ 1,927,555
Liabilities	[2]	(1,798,019)	(1,739,571)
Securitizations and Variable Interest Entities Textual [Abstract]
Carrying value of delinquent loans eligible for repurchase		521	556
Principal amount that would be payable to securitization vehicles		521	556
VIEs that we do not consolidate [Member]
Variable Interest Entity [Line Items]
Assets		1,304,088	1,314,630
Maximum exposure to loss		41,894	44,099
VIEs that we do not consolidate [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		27,743	30,101
Liabilities		(4,878)	(5,007)
Net Assets		22,865	25,094
VIEs that we do not consolidate [Member] | Equity interests [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		11,300	11,400
VIEs that we do not consolidate [Member] | Residential mortgage loan securitizations, Conforming [Member]
Variable Interest Entity [Line Items]
Assets		1,082,170	1,098,103
Maximum exposure to loss		11,162	13,840
VIEs that we do not consolidate [Member] | Residential mortgage loan securitizations, Conforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Net Assets		10,061	12,776
VIEs that we do not consolidate [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member]
Variable Interest Entity [Line Items]
Assets		5,226	5,178
Maximum exposure to loss		209	158
VIEs that we do not consolidate [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Net Assets		209	158
VIEs that we do not consolidate [Member] | Commercial mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Assets		174,761	169,736
Maximum exposure to loss		15,455	15,055
VIEs that we do not consolidate [Member] | Commercial mortgage loan securitizations [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Net Assets		3,661	3,345
VIEs that we do not consolidate [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Assets		39,499	39,091
Maximum exposure to loss		14,525	14,527
VIEs that we do not consolidate [Member] | Tax credit structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Net Assets		8,640	8,566
VIEs that we do not consolidate [Member] | Other asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Assets		1,314	1,355
Maximum exposure to loss		345	311
VIEs that we do not consolidate [Member] | Other asset-based finance structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Net Assets		253	198
VIEs that we do not consolidate [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets		1,118	1,167
Maximum exposure to loss		198	208
VIEs that we do not consolidate [Member] | Other [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Net Assets		41	51
VIEs that we do not consolidate [Member] | Debt and equity interests [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		17,214	16,251
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		17,735	16,807
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Residential mortgage loan securitizations, Conforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		1,582	972
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Residential mortgage loan securitizations, Conforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		2,103	1,528
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		120	6
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		120	6
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Commercial mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		2,440	2,239
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Commercial mortgage loan securitizations [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		2,440	2,239
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		12,841	12,826
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Tax credit structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		12,841	12,826
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Other asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		190	157
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Other asset-based finance structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		190	157
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		41	51
VIEs that we do not consolidate [Member] | Debt and equity interests [Member] | Other [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		41	51
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		9,739	13,152
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		9,739	13,152
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Residential mortgage loan securitizations, Conforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		8,607	11,931
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Residential mortgage loan securitizations, Conforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		8,607	11,931
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		89	152
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		89	152
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Commercial mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		1,043	1,069
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Commercial mortgage loan securitizations [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		1,043	1,069
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Tax credit structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Other asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Other asset-based finance structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Servicing assets and advances [Member] | Other [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		272	143
VIEs that we do not consolidate [Member] | Derivatives [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		267	141
VIEs that we do not consolidate [Member] | Derivatives [Member] | Residential mortgage loan securitizations, Conforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Residential mortgage loan securitizations, Conforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Commercial mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		196	80
VIEs that we do not consolidate [Member] | Derivatives [Member] | Commercial mortgage loan securitizations [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		196	80
VIEs that we do not consolidate [Member] | Derivatives [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Tax credit structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Other asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		76	63
VIEs that we do not consolidate [Member] | Derivatives [Member] | Other asset-based finance structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		71	61
VIEs that we do not consolidate [Member] | Derivatives [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Derivatives [Member] | Other [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		0	0
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		14,669	14,553
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		(4,876)	(5,006)
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Residential mortgage loan securitizations, Conforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		973	937
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Residential mortgage loan securitizations, Conforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		(649)	(683)
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		0	0
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Residential mortgage loan securitizations, Other/nonconforming [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		0	0
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Commercial mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		11,776	11,667
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Commercial mortgage loan securitizations [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		(18)	(43)
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		1,684	1,701
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Tax credit structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		(4,201)	(4,260)
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Other asset-based finance structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		79	91
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Other asset-based finance structures [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		(8)	(20)
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss		157	157
VIEs that we do not consolidate [Member] | Debt, guarantees, and other commitments [Member] | Other [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Liabilities		$ 0	$ 0
[1]	(3) Our consolidated assets at March 31, 2020 , and December 31, 2019 , 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, $19 million and $16 million ; Interest-earning deposits with banks, $0 million and $284 million ; Debt securities, $616 million and $540 million ; Net loans, $13.1 billion and $13.2 billion ; Derivative assets, $6 million and $1 million ; Equity securities, $95 million and $118 million ; Other assets, $258 million and $239 million ; and Total assets, $14.1 billion and $14.4 billion , respectively.
[2]	(4) Our consolidated liabilities at March 31, 2020 , and December 31, 2019 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $300 million and $401 million ; Derivative liabilities, $8 million and $3 million ; Accrued expenses and other liabilities, $230 million and $235 million ; Long-term debt, $235 million and $587 million ; and Total liabilities, $773 million and $1.2 billion , respectively.

Securitizations and Variable _5

Securitizations and Variable Interest Entities, Transfers with Continuing Involvement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Residential mortgages [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Net gains (losses) on sale	$ 52	$ 14
Asset balances sold	47,857	34,103
Residential mortgages [Member] | Fair value, inputs, level 3 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Servicing rights recognized	446	320
Liability for repurchase losses recognized	3	3
Residential mortgages [Member] | Fair value, inputs, level 2 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities recognized	2,313	912
Commercial mortgages [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Net gains (losses) on sale	69	47
Asset balances sold	2,728	2,702
Commercial mortgages [Member] | Fair value, inputs, level 3 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Servicing rights recognized	34	26
Liability for repurchase losses recognized	0	0
Commercial mortgages [Member] | Fair value, inputs, level 2 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities recognized	$ 62	$ 0

Securitizations and Variable _6

Securitizations and Variable Interest Entities, Residential Mortgage Servicing Rights (Details) - Residential mortgage servicing rights [Member] - $ / loan	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Prepayment speed	12.70%	13.50%
Discount rate	6.50%	8.10%
Cost to service ($ per loan)	91	94

Securitizations and Variable _7

Securitizations and Variable Interest Entities, Cash Inflows (Outflows) From Sales and Securitization Activity (Details) - Mortgage loans [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash Flow Securitizations [Abstract]
Proceeds from securitizations and whole loan sales	$ 50,229	$ 36,507
Fees from servicing rights retained	756	780
Cash flows from other interests held	167	111
Servicing advances, net of recoveries	33	39
Government insured loans [Member]
Cash Flow Securitizations [Abstract]
Repurchases of assets/loss reimbursements	(1,440)	(1,942)
Agency securitizations [Member]
Cash Flow Securitizations [Abstract]
Repurchases of assets/loss reimbursements	(26)	(17)
Non-agency securitizations and whole loan transactions [Member]
Cash Flow Securitizations [Abstract]
Repurchases of assets/loss reimbursements	$ 0	$ 0

Securitizations and Variable _8

Securitizations and Variable Interest Entities, Retained Interests from Unconsolidated VIEs (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020USD ($)$ / loan	Dec. 31, 2019USD ($)$ / 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	$ 1,500	$ 1,900
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	$ 146	$ 205
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	$ 8,126	$ 11,517
Expected weighted-average life (in years)	4 years 3 months 18 days	5 years 3 months 18 days
Key economic assumptions:
Prepayment speed assumption	15.70%	11.90%
Decrease in fair value from:
10% adverse change	$ 475	$ 537
25% adverse change	$ 1,105	$ 1,261
Discount rate assumption	7.10%	7.20%
Decrease in fair value from:
100 basis point increase	$ 293	$ 464
200 basis point increase	$ 563	$ 889
Cost to service assumption ($ per loan) | $ / loan	112	102
Decrease in fair value from:
10% adverse change	$ 234	$ 253
25% adverse change	585	632
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	$ 924	$ 909
Expected weighted-average life (in years)	7 years 1 month 6 days	7 years 3 months 18 days
Decrease in fair value from:
Discount rate assumption	5.40%	4.00%
Decrease in fair value from:
100 basis point increase	$ 54	$ 53
200 basis point increase	$ 103	$ 103
Decrease in fair value from:
Credit loss assumption	3.70%	3.10%
Decrease in fair value from:
10% higher losses	$ 28	$ 1
25% higher losses	31	4
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	$ 326	$ 352
Expected weighted-average life (in years)	5 years 7 months 6 days	5 years 6 months
Decrease in fair value from:
Discount rate assumption	3.50%	2.90%
Decrease in fair value from:
100 basis point increase	$ 16	$ 16
200 basis point increase	$ 30	$ 32
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 _9

Securitizations and Variable Interest Entities, Off-Balance Sheet Loans Sold or Securitized (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	$ 1,099,778		$ 1,120,966
Delinquent loans and foreclosed assets	7,007		7,442
Net charge-offs	102	$ 146
Government insured or guaranteed [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	1,000,000		1,000,000
Securitizations and Variable Interest Entities Textual [Abstract]
Delinquent Loans	5,200		5,200
Foreclosed assets	259		251
Total Commercial [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	113,196		112,507
Delinquent loans and foreclosed assets	679		776
Net charge-offs	71	79
Commercial real estate mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	113,196		112,507
Delinquent loans and foreclosed assets	679		776
Net charge-offs	71	79
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	365		492
Total Consumer [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	986,582		1,008,459
Delinquent loans and foreclosed assets	6,328		6,666
Net charge-offs	31	67
Residential mortgage [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	354		356
Real estate 1-4 family first mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	986,570		1,008,446
Delinquent loans and foreclosed assets	6,326		6,664
Net charge-offs	31	67
Real estate 1-4 family junior lien mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	12		13
Delinquent loans and foreclosed assets	2		$ 2
Net charge-offs	$ 0	$ 0

Securitizations and Variable_10

Securitizations and Variable Interest Entities, Transactions with Consolidated VIEs and Secured Borrowings (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Assets	[1]	$ 1,981,349	$ 1,927,555
Liabilities	[2]	(1,798,019)	(1,739,571)
Noncontrolling interests		(612)	(838)
Transfers that we account for as secured borrowings [Member]
Variable Interest Entity [Line Items]
Assets		77	81
Transfers that we account for as secured borrowings [Member] | Residential mortgage securitizations [Member]
Variable Interest Entity [Line Items]
Assets		77	81
Transfers that we account for as secured borrowings [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		77	80
Liabilities		(76)	(79)
Noncontrolling interests		0	0
Net assets		1	1
Transfers that we account for as secured borrowings [Member] | Carrying amount [Member] | Residential mortgage securitizations [Member]
Variable Interest Entity [Line Items]
Assets		77	80
Liabilities		(76)	(79)
Noncontrolling interests		0	0
Net assets		1	1
VIEs that we consolidate [Member]
Variable Interest Entity [Line Items]
Assets		14,208	14,505
VIEs that we consolidate [Member] | Commercial and industrial loans and leases [Member]
Variable Interest Entity [Line Items]
Assets		7,760	8,054
VIEs that we consolidate [Member] | Nonconforming residential mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Assets		679	935
VIEs that we consolidate [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Assets		5,022	4,836
VIEs that we consolidate [Member] | Municipal tender option bond securitizations [Member]
Variable Interest Entity [Line Items]
Assets		500	401
VIEs that we consolidate [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets		247	279
VIEs that we consolidate [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		14,096	14,368
Liabilities		(974)	(1,226)
Noncontrolling interests		(33)	(43)
Net assets		13,089	13,099
VIEs that we consolidate [Member] | Carrying amount [Member] | Commercial and industrial loans and leases [Member]
Variable Interest Entity [Line Items]
Assets		7,755	8,042
Liabilities		(226)	(529)
Noncontrolling interests		(11)	(16)
Net assets		7,518	7,497
VIEs that we consolidate [Member] | Carrying amount [Member] | Nonconforming residential mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Assets		567	809
Liabilities		(236)	(290)
Noncontrolling interests		0	0
Net assets		331	519
VIEs that we consolidate [Member] | Carrying amount [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Assets		5,022	4,836
Liabilities		0	0
Noncontrolling interests		0	0
Net assets		5,022	4,836
VIEs that we consolidate [Member] | Carrying amount [Member] | Municipal tender option bond securitizations [Member]
Variable Interest Entity [Line Items]
Assets		505	402
Liabilities		(502)	(401)
Noncontrolling interests		0	0
Net assets		3	1
VIEs that we consolidate [Member] | Carrying amount [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets		247	279
Liabilities		(10)	(6)
Noncontrolling interests		(22)	(27)
Net assets		215	246
Total secured borrowings and consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Assets		14,285	14,586
Total secured borrowings and consolidated VIEs [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		14,173	14,448
Liabilities		(1,050)	(1,305)
Noncontrolling interests		(33)	(43)
Net assets		13,090	13,100
VIEs that we do not consolidate [Member]
Variable Interest Entity [Line Items]
Assets		1,304,088	1,314,630
VIEs that we do not consolidate [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets		1,118	1,167
VIEs that we do not consolidate [Member] | Carrying amount [Member]
Variable Interest Entity [Line Items]
Assets		27,743	30,101
Liabilities		(4,878)	(5,007)
Noncontrolling interests		0	0
Net assets		22,865	25,094
VIEs that we do not consolidate [Member] | Carrying amount [Member] | Other [Member]
Variable Interest Entity [Line Items]
Net assets		41	51
VIEs that we do not consolidate [Member] | Trust preferred securities [Member]
Variable Interest Entity [Line Items]
Net assets		$ (686)	$ (2,100)
[1]	(3) Our consolidated assets at March 31, 2020 , and December 31, 2019 , 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, $19 million and $16 million ; Interest-earning deposits with banks, $0 million and $284 million ; Debt securities, $616 million and $540 million ; Net loans, $13.1 billion and $13.2 billion ; Derivative assets, $6 million and $1 million ; Equity securities, $95 million and $118 million ; Other assets, $258 million and $239 million ; and Total assets, $14.1 billion and $14.4 billion , respectively.
[2]	(4) Our consolidated liabilities at March 31, 2020 , and December 31, 2019 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $300 million and $401 million ; Derivative liabilities, $8 million and $3 million ; Accrued expenses and other liabilities, $230 million and $235 million ; Long-term debt, $235 million and $587 million ; and Total liabilities, $773 million and $1.2 billion , respectively.

Securitizations and Variable_11

Securitizations and Variable Interest Entities, Other Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Trust preferred securities [Member]
Variable Interest Entity [Line Items]
Trust preferred securities exchanged for junior debt	$ 1,400
Variable Interest Entity, Not Primary Beneficiary [Member] | Trust preferred securities [Member]
Variable Interest Entity [Line Items]
Net Assets	686		$ 2,100
Preferred Stock [Member] | Trust preferred securities [Member]
Variable Interest Entity [Line Items]
Affiliated Trust Preferred Securities That Were Retired	10
Waived fees [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Financial support provided to a nonconsolidated legal entity	$ 11	$ 10

Mortgage Banking Activities, An

Mortgage Banking Activities, Analysis of Changes in Fair Value MSRs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Changes in MSRs measured at fair value
Fair value, beginning of period	$ 11,517
Changes in fair value:
Net changes in valuation model inputs or assumptions	(3,257)	$ (891)
Changes due to collection/realization of expected cash flows over time	(564)	(482)
Total changes in fair value	(3,821)	(1,373)
Fair value, end of period	8,126
Carried at fair value [Member]
Changes in MSRs measured at fair value
Fair value, beginning of period	11,517	14,649
Servicing from securitizations or asset transfers	461	341
Sales and other	(31)	(281)
Net additions	430	60
Changes in fair value:
Net changes in valuation model inputs or assumptions	(3,257)	(891)
Changes due to collection/realization of expected cash flows over time	(564)	(482)
Total changes in fair value	(3,821)	(1,373)
Fair value, end of period	8,126	13,336
Carried at fair value [Member] | Mortgage interest rates [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	(3,022)	(940)
Carried at fair value [Member] | Servicing and foreclosure costs [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	(73)	12
Carried at fair value [Member] | Discount rates [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	27	100
Carried at fair value [Member] | Prepayment estimates and other [Member]
Changes in fair value:
Net changes in valuation model inputs or assumptions	$ (189)	$ (63)

Mortgage Banking Activities, _2

Mortgage Banking Activities, Analysis of Changes in Amortized MSRs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Changes in amortized MSRs
Amortization	$ (66)	$ (66)
Amortized [Member]
Changes in amortized MSRs
Balance, beginning of period	1,430	1,443
Purchases	8	24
Servicing from securitizations or asset transfers	34	26
Amortization	(66)	(66)
Balance, end of period	1,406	1,427
Fair value of amortized MSRs:
Beginning of period	1,872	2,288
End of period	1,490	2,149
Commercial mortgage servicing [Member] | Amortized [Member]
Mortgage Banking Activities (Textual) [Abstract]
Valuation allowance	$ 0	$ 0

Mortgage Banking Activities, Ma

Mortgage Banking Activities, Managed Servicing Portfolio (Details) - USD ($) $ in Billions	Mar. 31, 2020	Dec. 31, 2019
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	$ 1,602	$ 1,629
Total managed servicing portfolio	$ 2,079	$ 2,107
Ratio of MSRs to related loans serviced for others	0.60%	0.79%
Residential mortgage servicing [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	$ 1,041	$ 1,065
Owned loans serviced	341	343
Total managed servicing portfolio	1,382	1,408
Commercial mortgage servicing [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	573	575
Owned loans serviced	124	124
Total managed servicing portfolio	$ 697	$ 699

Mortgage Banking Activities, Mo

Mortgage Banking Activities, Mortgage Banking Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Servicing fees:
Contractually specified servicing fees	$ 808	$ 840
Late charges	27	33
Ancillary fees	30	38
Unreimbursed direct servicing costs	(107)	(70)
Net servicing fees	758	841
Changes in fair value of MSRs carried at fair value:
Due to changes in valuation model inputs or assumptions	(3,257)	(891)
Changes due to collection/realization of expected cash flows over time	(564)	(482)
Total changes in fair value of MSRs carried at fair value	(3,821)	(1,373)
Amortization	(66)	(66)
Net derivative gains (losses) from economic hedges	3,400	962
Total servicing income, net	271	364
Net gains on mortgage loan origination/sales activities (5)	108	344
Total mortgage banking noninterest income	379	708
Market-related valuation changes to MSRs, net of hedge results	143	71
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	$ (929)	$ (151)

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Amortized intangible assets:
Gross carrying value	$ 5,344	$ 5,369
Accumulated amortization	(3,539)	(3,516)
Net carrying value	1,805	1,853
Unamortized intangible assets:
Mortgage servicing rights	8,126	11,517
Goodwill	26,381	26,390	$ 26,420	$ 26,418
Trademark	14	14
MSRs [Member]
Amortized intangible assets:
Gross carrying value	4,465	4,422
Accumulated amortization	(3,059)	(2,992)
Net carrying value	1,406	1,430
Customer relationship and other intangibles [Member]
Amortized intangible assets:
Gross carrying value	879	947
Accumulated amortization	(480)	(524)
Net carrying value	$ 399	$ 423

Intangible Assets, Amortization

Intangible Assets, Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Three months ended March 31, 2020 (actual)	$ 23	$ 28
Estimate for the remainder of 2020	273
Estimate for year ended December 31,
2021	316
2022	278
2023	240
2024	204
2025	169
Finite lived intangible assets [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Three months ended March 31, 2020 (actual)	91
Amortized MSRs [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Three months ended March 31, 2020 (actual)	67
Estimate for the remainder of 2020	202
Estimate for year ended December 31,
2021	235
2022	210
2023	181
2024	156
2025	130
Customer relationship and other amortized intangibles [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Three months ended March 31, 2020 (actual)	24
Estimate for the remainder of 2020	71
Estimate for year ended December 31,
2021	81
2022	68
2023	59
2024	48
2025	$ 39

Intangible Assets, Allocation o

Intangible Assets, Allocation of Goodwill to Operating Segments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 26,390	$ 26,418
Foreign currency translation	(9)	2
Goodwill, Ending Balance	26,381	26,420
Community Banking [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	16,685	16,685
Foreign currency translation	0	0
Goodwill, Ending Balance	16,685	16,685
Wholesale Banking [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	8,429	8,450
Foreign currency translation	(9)	2
Goodwill, Ending Balance	8,420	8,452
Wealth and Investment Management [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,276	1,283
Foreign currency translation	0	0
Goodwill, Ending Balance	$ 1,276	$ 1,283

Guarantees, Pledged Assets an_3

Guarantees, Pledged Assets and Collateral (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Dec. 31, 2019
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		$ 802	$ (256)
Maximum exposure to loss, expires in one year or less		33,210	31,417
Maximum exposure to loss, expires in one year through three years		18,824	19,721
Maximum exposure to loss, expires in three years through five years		7,313	7,336
Maximum exposure to loss, expires after five years		16,339	16,521
Maximum exposure to loss		$ 75,686	74,995
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]	$ 1,798,019	1,739,571
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Equity Securities		13,573	27,440
Total pledged assets related to trading activities		118,377	121,507
Total assets	[2]	1,981,349	1,927,555
Loans eligible for repurchase from GNMA securitizations		533	568
Total pledged assets		582,123	600,744
VIEs that we consolidate [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total assets		14,208	14,505
VIEs that we consolidate [Member] | Loans held at fair value [Member]
Guarantor Obligations [Line Items]
Liabilities		974	1,226
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total assets		14,096	14,368
Transfers that we account for as secured borrowings [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total assets		77	81
Transfers that we account for as secured borrowings [Member] | Loans held at fair value [Member]
Guarantor Obligations [Line Items]
Liabilities		76	79
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total assets		77	80
Total VIEs and Transfers that we account for as secured borrowings [Member] | Loans held at fair value [Member]
Guarantor Obligations [Line Items]
Liabilities		5,928	6,312
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total assets		41,916	44,549
Total pledged assets		14,706	15,016
Related to non-trading activities [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Loans		400,111	406,106
Available-for-sale		59,116	61,126
Held-to-maturity		3,884	3,685
Mortgage loans held for sale		1,877	2,266
Total pledged assets		464,988	473,183
Related to trading activities [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Trading debt Securities and others		39,828	51,083
Equity Securities		1,122	1,379
Total pledged assets related to trading activities		102,429	112,545
Related to trading activities [Member] | Other trading - off-balance sheet [Member]
Security Owned and Pledged as Collateral, Fair Value [Abstract]
Total pledged assets related to trading activities		61,479	60,083
Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		43,239	36,934
Written put options [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		690	(345)
Maximum exposure to loss, expires in one year or less		18,799	17,088
Maximum exposure to loss, expires in one year through three years		10,315	10,869
Maximum exposure to loss, expires in three years through five years		2,387	2,341
Maximum exposure to loss, expires after five years		327	273
Maximum exposure to loss		31,828	30,571
Written put options [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		24,176	18,113
Standby letters of credit [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		83	36
Maximum exposure to loss, expires in one year or less		12,016	11,569
Maximum exposure to loss, expires in one year through three years		3,839	4,460
Maximum exposure to loss, expires in three years through five years		2,756	2,812
Maximum exposure to loss, expires after five years		429	467
Maximum exposure to loss		19,040	19,308
Standby letters of credit [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		7,183	7,104
Direct pay letters of credit (DPLCs) [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		0	0
Maximum exposure to loss, expires in one year or less		1,674	1,861
Maximum exposure to loss, expires in one year through three years		3,955	3,815
Maximum exposure to loss, expires in three years through five years		836	824
Maximum exposure to loss, expires after five years		40	105
Maximum exposure to loss		6,505	6,605
Direct pay letters of credit (DPLCs) [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		1,321	1,184
Loans and MHFS sold with recourse [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		28	52
Maximum exposure to loss, expires in one year or less		111	114
Maximum exposure to loss, expires in one year through three years		712	576
Maximum exposure to loss, expires in three years through five years		1,333	1,356
Maximum exposure to loss, expires after five years		10,039	10,050
Maximum exposure to loss		12,195	12,096
Loans and MHFS sold with recourse [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		10,000	9,835
Exchange and clearing house guarantees [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		0	0
Maximum exposure to loss, expires in three years through five years		0	0
Maximum exposure to loss, expires after five years		5,054	4,817
Maximum exposure to loss		5,054	4,817
Exchange and clearing house guarantees [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		0	0
Other guarantees and indemnification [Member]
Guarantor Obligations [Line Items]
Carrying Value obligation (asset)		1	1
Maximum exposure to loss, expires in one year or less		610	785
Maximum exposure to loss, expires in one year through three years		3	1
Maximum exposure to loss, expires in three years through five years		1	3
Maximum exposure to loss, expires after five years		450	809
Maximum exposure to loss		1,064	1,598
Other guarantees and indemnification [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		559	698
Third party clearing indemnifications [Member]
Guarantor Obligations [Line Items]
Third-party clearing customer obligations		27	80
Collateral provided to third-party clearing agents		389	696
Other commitments and guarantees [Member] | Wells Fargo Finance, LLC [Member]
Guarantor Obligations [Line Items]
Liabilities		$ 2,100	$ 1,600
[1]	(4) Our consolidated liabilities at March 31, 2020 , and December 31, 2019 , include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Short-term borrowings, $300 million and $401 million ; Derivative liabilities, $8 million and $3 million ; Accrued expenses and other liabilities, $230 million and $235 million ; Long-term debt, $235 million and $587 million ; and Total liabilities, $773 million and $1.2 billion , respectively.
[2]	(3) Our consolidated assets at March 31, 2020 , and December 31, 2019 , 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, $19 million and $16 million ; Interest-earning deposits with banks, $0 million and $284 million ; Debt securities, $616 million and $540 million ; Net loans, $13.1 billion and $13.2 billion ; Derivative assets, $6 million and $1 million ; Equity securities, $95 million and $118 million ; Other assets, $258 million and $239 million ; and Total assets, $14.1 billion and $14.4 billion , respectively.

Pledged Assets, Offsetting of R

Pledged Assets, Offsetting of Resale and Repurchase Agreements and Securities Borrowing and Lending (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	$ 106,082	$ 121,593
Collateral received with the right to sell or repledge	138,700	150,900
Collateral sold or repledged	61,100	59,100
Collateral pledged, fair value	103,400	113,300
Resale and securities borrowing agreements
Gross amounts recognized	128,844	140,773
Gross amounts offset in consolidated balance sheet	(22,762)	(19,180)
Net amounts in consolidated balance sheet	106,082	121,593
Collateral not recognized in consolidated balance sheet	(105,136)	(120,786)
Net amount	946	807
Repurchase and securities lending agreements
Gross amounts recognized	101,516	111,038
Gross amounts offset in consolidated balance sheet	(22,762)	(19,180)
Net amounts in consolidated balance sheet	78,754	91,858
Collateral pledged but not netted in consolidated balance sheet	(78,412)	(91,709)
Net amount	342	149
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	86,400	102,100
Resale and securities borrowing agreements
Net amounts in consolidated balance sheet	86,400	102,100
Loans [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	19,700	19,500
Resale and securities borrowing agreements
Net amounts in consolidated balance sheet	$ 19,700	$ 19,500

Pledged Assets, Collateral Type

Pledged Assets, Collateral Type and Contractual Maturities of Repurchase Agreements and Securities Lending Agreements (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	$ 96,909	$ 106,169
Securities lending	4,607	4,869
Total repurchases and securities lending	101,516	111,038
Overnight/continuous [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	75,413	79,793
Securities lending	4,392	4,724
Total repurchases and securities lending	79,805	84,517
Up to 30 days [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	7,681	17,681
Securities lending	65	0
Total repurchases and securities lending	7,746	17,681
30-90 days [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	10,680	4,825
Securities lending	150	145
Total repurchases and securities lending	10,830	4,970
Over 90 days [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	3,135	3,870
Securities lending	0	0
Total repurchases and securities lending	3,135	3,870
Securities of U.S. Treasury and federal agencies [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	50,787	48,161
Securities lending	134	163
Securities of U.S. states and political subdivisions [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	89	104
Federal agencies [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	32,027	44,737
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	1,263	1,818
Corporate debt securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	10,048	7,126
Securities lending	364	223
Asset-backed securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	1,460	1,844
Equity securities [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	721	1,674
Securities lending	4,100	4,481
Other [Member]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement [Abstract]
Repurchase agreements	514	705
Securities lending	$ 9	$ 2

Other Commitments (Details)

Other Commitments (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Commitments [Line Items]
Resale agreements, unfunded commitments	$ 10,800	$ 7,500
Purchase commitment [Member] | Debt securities [Member]
Other Commitments [Line Items]
Other commitment	89	18
Purchase commitment [Member] | Equity securities [Member]
Other Commitments [Line Items]
Other commitment	$ 2,700	$ 2,700

Legal Actions (Details)

Legal Actions (Details) $ in Millions

Feb. 21, 2020USD ($)

Nov. 30, 2016USD ($)

Jul. 13, 2012USD ($)

May 31, 2019USD ($)

Dec. 31, 2018USD ($)

Nov. 30, 2018USD ($)

Oct. 31, 2018USD ($)

Aug. 31, 2018USD ($)

Mar. 31, 2020USD ($)legal_action

Aug. 31, 2015legal_action

Apr. 20, 2017USD ($)

Apr. 07, 2020USD ($)

Mar. 18, 2020USD ($)

Jan. 31, 2020USD ($)

Dec. 31, 2019USD ($)

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

Loss Contingency, Estimate of Possible Loss

$ 20.8

Automobile Lending Practices [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

1

Loss Contingency, Estimate of Possible Loss

$ 547

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

Legal Actions (Textual) [Abstract]

Litigation Settlement, Additional Funding

$ 1

Interchange Litigation [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Estimate of Possible Loss

$ 6,600

Litigation Settlement, Additional Funding

$ 900

Litigation Settlement, Percentage Of Default Interchange Distributed To Class Merchants

0.10%

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 Allocated to WFC

$ 94.5

Mobile Deposit Patent Litigation [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

2

Mobile Deposit Patent Litigation - First Case [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Estimate of Possible Loss

$ 200

Mobile Deposit Patent Litigation - Second Case [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Estimate of Possible Loss

$ 102.7

Mortgage Loan Modification Litigation - Hernandez V Wells Fargo [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Estimate of Possible Loss

$ 18.5

Mortgage Related Regulatory Investigations [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 17

$ 2,090

Nomura/Natixis [Member]

Legal Actions (Textual) [Abstract]

Number of third-party complaints | legal_action

7

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

Legal Actions (Textual) [Abstract]

Civil Money Penalty

$ 1,000

Payments for Legal Settlements

$ 575

Retail Sales Practices Matters, Department Of Justice (DOJ) [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Settlement Agreement, Date

Feb. 21, 2020

Loss Contingency, Laws Affected

The Department of Justice criminal settlement also includes the Company’s agreement that the facts set forth in the settlement document constitute sufficient facts for the finding of criminal violations of statutes regarding bank records and personal information.

Retail Sales Practices Matters, Securities And Exchange Commission (SEC) [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Settlement Agreement, Date

Feb. 21, 2020

Loss Contingency, Laws Affected

The SEC order contains a finding, to which the Company consented, that the facts set forth include violations of Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5 thereunder.

Fair Fund, Investors Benefits

$ 500

Sales Practice Matters [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 65

Loss Contingency, Damages Awarded, Value

$ 3,000

Amounts To Be Paid In Connection With Legal Or Regulatory Matters

$ 142

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

RMBS Trustee Litigation [Member]

Legal Actions (Textual) [Abstract]

Payments for Legal Settlements

$ 43

Seminole Tribe - 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

$ 2,500

Subsequent Event [Member] | Sales Practice Matters [Member]

Legal Actions (Textual) [Abstract]

Gain Contingency, Estimate of Possible Insurance Carriers Payments

$ 240

Derivatives, Notional or Contra

Derivatives, Notional or Contractual Amounts and Fair Values of Derivatives (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	$ 82,919	$ 39,326
Fair value derivative assets, netting	(57,896)	(25,123)
Net amounts in consolidated balance sheet, assets	25,023	14,203
Fair value derivative liabilities	74,861	37,930
Fair value derivative liabilities, netting	(59,243)	(28,851)
Net amounts in consolidated balance sheet, liabilities	15,618	9,079
Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(39,677)	(14,878)
Net amounts in consolidated balance sheet, assets	18,932	9,169
Fair value derivative liabilities, netting	(42,276)	(16,595)
Net amounts in consolidated balance sheet, liabilities	5,276	2,771
Commodity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(1,534)	(888)
Net amounts in consolidated balance sheet, assets	782	533
Fair value derivative liabilities, netting	(1,689)	(677)
Net amounts in consolidated balance sheet, liabilities	5,149	1,093
Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(9,929)	(5,570)
Net amounts in consolidated balance sheet, assets	3,221	2,966
Fair value derivative liabilities, netting	(7,546)	(6,647)
Net amounts in consolidated balance sheet, liabilities	2,808	3,817
Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(6,660)	(3,722)
Net amounts in consolidated balance sheet, assets	2,031	1,492
Fair value derivative liabilities, netting	(7,661)	(4,866)
Net amounts in consolidated balance sheet, liabilities	2,363	1,381
Credit contracts protection sold [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(13)	(9)
Net amounts in consolidated balance sheet, assets	0	3
Fair value derivative liabilities, netting	(68)	(60)
Net amounts in consolidated balance sheet, liabilities	10	5
Credit contracts protection purchased [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, netting	(83)	(56)
Net amounts in consolidated balance sheet, assets	57	40
Fair value derivative liabilities, netting	(3)	(6)
Net amounts in consolidated balance sheet, liabilities	12	12
Derivatives designated as hedging instruments [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	3,946	2,936
Fair value derivative liabilities	4,011	2,407
Derivatives designated as hedging instruments [Member] | Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	187,167	182,789
Fair value derivative assets	3,715	2,595
Fair value derivative liabilities	2,199	1,237
Derivatives designated as hedging instruments [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	31,800	32,386
Fair value derivative assets	231	341
Fair value derivative liabilities	1,812	1,170
Not designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	78,973	36,390
Fair value derivative liabilities	70,850	35,523
Economic hedges [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets	6,067	1,478
Fair value derivative liabilities	2,105	670
Economic hedges [Member] | Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	358,717	235,810
Fair value derivative assets	2,732	207
Fair value derivative liabilities	1,766	160
Economic hedges [Member] | Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	16,614	19,263
Fair value derivative assets	1,969	1,126
Fair value derivative liabilities	106	224
Economic hedges [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	46,486	26,595
Fair value derivative assets	1,332	118
Fair value derivative liabilities	233	286
Economic hedges [Member] | Credit contracts protection purchased [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	499	1,400
Fair value derivative assets	34	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	72,906	34,912
Fair value derivative liabilities	68,745	34,853
Customer accommodation trading and other derivatives [Member] | Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	12,578,353	11,117,542
Fair value derivative assets	52,162	21,245
Fair value derivative liabilities	43,587	17,969
Customer accommodation trading and other derivatives [Member] | Commodity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	85,629	79,737
Fair value derivative assets	2,316	1,421
Fair value derivative liabilities	6,838	1,770
Customer accommodation trading and other derivatives [Member] | Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	316,754	272,145
Fair value derivative assets	11,181	7,410
Fair value derivative liabilities	10,248	10,240
Customer accommodation trading and other derivatives [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	343,627	364,469
Fair value derivative assets	7,128	4,755
Fair value derivative liabilities	7,979	4,791
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	15,035	12,215
Fair value derivative assets	13	12
Fair value derivative liabilities	78	65
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	25,144	24,030
Fair value derivative assets	106	69
Fair value derivative liabilities	$ 15	$ 18

Derivatives, Gross Fair Value o

Derivatives, Gross Fair Value of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Derivative Assets
Gross amounts recognized, assets	$ 82,919	$ 39,326
Gross amounts offset in consolidated balance sheet, assets	(57,896)	(25,123)
Net amounts in consolidated balance sheet, assets	25,023	14,203
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(2,217)	(539)
Net amounts, assets	22,806	13,664
Derivative Liabilities
Gross amounts recognized, liabilities	74,861	37,930
Gross amounts offset in consolidated balance sheet, liabilities	(59,243)	(28,851)
Net amounts in consolidated balance sheet, liabilities	15,618	9,079
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	(1,260)	(1,038)
Net amounts, liabilities	14,358	8,041
Derivatives (Textual) [Abstract]
Derivative assets subject to enforceable master netting arrangements	73,100	33,700
Derivative liabilities subject to enforceable master netting arrangements	69,200	33,500
Derivative assets not subject to enforceable master netting arrangements	9,800	5,600
Derivative liabilities not subject to enforceable master netting arrangements	5,700	4,400
Cash collateral receivables not offset against derivatives	6,400	1,400
Cash collateral payables not offset against derivatives	4,400	6,300
Valuation adjustments for derivative assets	877	231
Valuation adjustments for derivative liabilities	280	100
Cash collateral netted against derivative assets	9,800	2,900
Cash collateral netted against derivative liabilities	11,700	6,800
Interest rate contracts [Member]
Derivative Assets
Gross amounts recognized, assets	58,609	24,047
Gross amounts offset in consolidated balance sheet, assets	(39,677)	(14,878)
Net amounts in consolidated balance sheet, assets	18,932	9,169
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(1,302)	(445)
Net amounts, assets	$ 17,630	$ 8,724
Percent exchanged in over-the-counter market, assets	87.00%	95.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 47,552	$ 19,366
Gross amounts offset in consolidated balance sheet, liabilities	(42,276)	(16,595)
Net amounts in consolidated balance sheet, liabilities	5,276	2,771
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	(995)	(545)
Net amounts, liabilities	$ 4,281	$ 2,226
Percent exchanged in over-the-counter market, liabilities	87.00%	94.00%
Commodity contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 2,316	$ 1,421
Gross amounts offset in consolidated balance sheet, assets	(1,534)	(888)
Net amounts in consolidated balance sheet, assets	782	533
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(3)	(2)
Net amounts, assets	$ 779	$ 531
Percent exchanged in over-the-counter market, assets	62.00%	80.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 6,838	$ 1,770
Gross amounts offset in consolidated balance sheet, liabilities	(1,689)	(677)
Net amounts in consolidated balance sheet, liabilities	5,149	1,093
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	(2)	(2)
Net amounts, liabilities	$ 5,147	$ 1,091
Percent exchanged in over-the-counter market, liabilities	90.00%	82.00%
Equity contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 13,150	$ 8,536
Gross amounts offset in consolidated balance sheet, assets	(9,929)	(5,570)
Net amounts in consolidated balance sheet, assets	3,221	2,966
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(802)	(69)
Net amounts, assets	$ 2,419	$ 2,897
Percent exchanged in over-the-counter market, assets	66.00%	65.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 10,354	$ 10,464
Gross amounts offset in consolidated balance sheet, liabilities	(7,546)	(6,647)
Net amounts in consolidated balance sheet, liabilities	2,808	3,817
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	(164)	(319)
Net amounts, liabilities	$ 2,644	$ 3,498
Percent exchanged in over-the-counter market, liabilities	56.00%	81.00%
Foreign exchange contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 8,691	$ 5,214
Gross amounts offset in consolidated balance sheet, assets	(6,660)	(3,722)
Net amounts in consolidated balance sheet, assets	2,031	1,492
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(107)	(22)
Net amounts, assets	$ 1,924	$ 1,470
Percent exchanged in over-the-counter market, assets	100.00%	100.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 10,024	$ 6,247
Gross amounts offset in consolidated balance sheet, liabilities	(7,661)	(4,866)
Net amounts in consolidated balance sheet, liabilities	2,363	1,381
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	(99)	(169)
Net amounts, liabilities	$ 2,264	$ 1,212
Percent exchanged in over-the-counter market, liabilities	100.00%	100.00%
Credit contracts protection sold [Member]
Derivative Assets
Gross amounts recognized, assets	$ 13	$ 12
Gross amounts offset in consolidated balance sheet, assets	(13)	(9)
Net amounts in consolidated balance sheet, assets	0	3
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	0	0
Net amounts, assets	$ 0	$ 3
Percent exchanged in over-the-counter market, assets	44.00%	84.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 78	$ 65
Gross amounts offset in consolidated balance sheet, liabilities	(68)	(60)
Net amounts in consolidated balance sheet, liabilities	10	5
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	0	(3)
Net amounts, liabilities	$ 10	$ 2
Percent exchanged in over-the-counter market, liabilities	87.00%	98.00%
Credit contracts protection purchased [Member]
Derivative Assets
Gross amounts recognized, assets	$ 140	$ 96
Gross amounts offset in consolidated balance sheet, assets	(83)	(56)
Net amounts in consolidated balance sheet, assets	57	40
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(3)	(1)
Net amounts, assets	$ 54	$ 39
Percent exchanged in over-the-counter market, assets	85.00%	97.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 15	$ 18
Gross amounts offset in consolidated balance sheet, liabilities	(3)	(6)
Net amounts in consolidated balance sheet, liabilities	12	12
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), liabilities	0	0
Net amounts, liabilities	$ 12	$ 12
Percent exchanged in over-the-counter market, liabilities	69.00%	93.00%

Derivatives, Gains (Losses) Rec

Derivatives, Gains (Losses) Recognized on Fair Value Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total amounts presented in the consolidated statement of income and other comprehensive income
Debt securities	$ 3,472	$ 3,941
Mortgage loans held for sale	197	152
Deposits	(1,742)	(2,026)
Long-term debt	(1,240)	(1,927)
Other	372	574
Total recorded in OCI, derivative gains (losses)	182	44
Derivatives (Textual) [Abstract]
Cash flow hedge deferred loss in other comprehensive income	$ (218)
Maximum length of time hedged in cash flow hedge	10 years
Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Recognized on derivatives, Total recorded in OCI	$ 144	(26)
Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Recognized on derivatives, Total recorded in OCI	0	0
Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Recognized on derivatives, Total recorded in OCI	144	(26)
Debt securities [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Total gains (losses) (pre-tax) recognized on fair value hedges	(54)	30
Debt securities [Member] | Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	(46)	16
Recognized on derivatives	(1,871)	(814)
Recognized on hedged items	1,856	817
Total gains (losses) (pre-tax) recognized on fair value hedges	(61)	19
Debt securities [Member] | Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	6	10
Recognized on derivatives	(1)	(4)
Recognized on hedged items	2	5
Total gains (losses) (pre-tax) recognized on fair value hedges	7	11
Mortgage loans held for sale [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Total gains (losses) (pre-tax) recognized on fair value hedges	0	(1)
Mortgage loans held for sale [Member] | Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0
Recognized on derivatives	(50)	(8)
Recognized on hedged items	50	7
Total gains (losses) (pre-tax) recognized on fair value hedges	0	(1)
Mortgage loans held for sale [Member] | Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0
Recognized on derivatives	0	0
Recognized on hedged items	0	0
Total gains (losses) (pre-tax) recognized on fair value hedges	0	0
Deposits [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Total gains (losses) (pre-tax) recognized on fair value hedges	89	(6)
Deposits [Member] | Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	70	(23)
Recognized on derivatives	530	207
Recognized on hedged items	(511)	(190)
Total gains (losses) (pre-tax) recognized on fair value hedges	89	(6)
Deposits [Member] | Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0
Recognized on derivatives	0	0
Recognized on hedged items	0	0
Total gains (losses) (pre-tax) recognized on fair value hedges	0	0
Long-term debt [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Total gains (losses) (pre-tax) recognized on fair value hedges	371	(84)
Long-term debt [Member] | Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	174	(7)
Recognized on derivatives	9,775	1,986
Recognized on hedged items	(9,426)	(1,947)
Total gains (losses) (pre-tax) recognized on fair value hedges	523	32
Long-term debt [Member] | Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	(85)	(142)
Recognized on derivatives	107	292
Recognized on hedged items	(174)	(266)
Total gains (losses) (pre-tax) recognized on fair value hedges	(152)	(116)
Other noninterest income [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Total gains (losses) (pre-tax) recognized on fair value hedges	(21)	(11)
Other noninterest income [Member] | Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0
Recognized on derivatives	0	0
Recognized on hedged items	0	0
Total gains (losses) (pre-tax) recognized on fair value hedges	0	0
Other noninterest income [Member] | Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	0	0
Recognized on derivatives	(785)	(402)
Recognized on hedged items	764	391
Total gains (losses) (pre-tax) recognized on fair value hedges	(21)	(11)
Derivative gains (losses) [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Total gains (losses) (pre-tax) recognized on fair value hedges	385	(72)
Derivative gains (losses) [Member] | Interest rate contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	198	(14)
Recognized on derivatives	8,384	1,371
Recognized on hedged items	(8,031)	(1,313)
Total gains (losses) (pre-tax) recognized on fair value hedges	551	44
Derivative gains (losses) [Member] | Foreign exchange contracts [Member] | Fair value hedging [Member]
Gains (losses) on fair value hedging relationships
Amounts related to interest settlements on derivatives	(79)	(132)
Recognized on derivatives	(679)	(114)
Recognized on hedged items	592	130
Total gains (losses) (pre-tax) recognized on fair value hedges	$ (166)	$ (116)

Derivatives, Gains (Losses) R_2

Derivatives, Gains (Losses) Recognized on Cash Flow Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total amounts presented in the consolidated statement of income and other comprehensive income
Loans	$ 10,065	$ 11,354
Long-term debt	(1,240)	(1,927)
Total recorded in OCI, derivative gains (losses)	182	44
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net losses to net income on cash flow hedges, before tax	58	79
Cash flow hedging [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net losses to net income on cash flow hedges, before tax	58	79
Net unrealized gains (losses) (pre-tax) recognized in OCI	(20)	(9)
Total gains (losses) (pre-tax) recognized on cash flow hedges	38	70
Cash flow hedging [Member] | Interest rate contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net losses to net income on cash flow hedges, before tax	56	78
Net unrealized gains (losses) (pre-tax) recognized in OCI	0	0
Total gains (losses) (pre-tax) recognized on cash flow hedges	56	78
Cash flow hedging [Member] | Foreign exchange contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net losses to net income on cash flow hedges, before tax	2	1
Net unrealized gains (losses) (pre-tax) recognized in OCI	(20)
Total gains (losses) (pre-tax) recognized on cash flow hedges	(18)	(8)
Cash flow hedging [Member] | Loans [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Net unrealized gains (losses) (pre-tax) recognized in OCI	(56)	(78)
Cash flow hedging [Member] | Loans [Member] | Interest rate contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Realized gains (losses) (pre-tax) reclassified from OCI into net income	(56)	(78)
Net unrealized gains (losses) (pre-tax) recognized in OCI	(56)	(78)
Cash flow hedging [Member] | Loans [Member] | Foreign exchange contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Net unrealized gains (losses) (pre-tax) recognized in OCI	0	0
Cash flow hedging [Member] | Long-term debt [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Net unrealized gains (losses) (pre-tax) recognized in OCI	(2)	(1)
Cash flow hedging [Member] | Long-term debt [Member] | Interest rate contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Net unrealized gains (losses) (pre-tax) recognized in OCI	0	0
Cash flow hedging [Member] | Long-term debt [Member] | Foreign exchange contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Realized gains (losses) (pre-tax) reclassified from OCI into net income	(2)	(1)
Net unrealized gains (losses) (pre-tax) recognized in OCI	(2)	(1)
Cash flow hedging [Member] | Derivative gains (losses) [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Net unrealized gains (losses) (pre-tax) recognized in OCI	(58)	(79)
Cash flow hedging [Member] | Derivative gains (losses) [Member] | Interest rate contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Realized gains (losses) (pre-tax) reclassified from OCI into net income	(56)	(78)
Net unrealized gains (losses) (pre-tax) recognized in OCI	(56)	(78)
Cash flow hedging [Member] | Derivative gains (losses) [Member] | Foreign exchange contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Realized gains (losses) (pre-tax) reclassified from OCI into net income	(2)	(1)
Net unrealized gains (losses) (pre-tax) recognized in OCI	$ (2)	$ (1)

Derivatives, Fair Value Hedging

Derivatives, Fair Value Hedging Basis Adjustment (Details) - Fair value hedging [Member] - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Hedged items currently designated [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	$ 34,959	$ 36,896
Hedge accounting basis adjustment, assets, currently designated	2,750	1,110
Hedged items currently designated [Member] | Mortgage loans held for sale [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	514	961
Hedge accounting basis adjustment, assets, currently designated	24	(12)
Hedged items currently designated [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of (liabilities)	(41,081)	(43,716)
Hedge accounting basis adjustment, liabilities, currently designated	(837)	(324)
Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of (liabilities)	(147,069)	(127,423)
Hedge accounting basis adjustment, liabilities, currently designated	(15,325)	(5,827)
Not designated as hedging instrument [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	9,567	9,486
Hedge accounting basis adjustment, assets, not currently designated	261	278
Not designated as hedging instrument [Member] | Mortgage loans held for sale [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	0	0
Hedge accounting basis adjustment, assets, not currently designated	0	0
Not designated as hedging instrument [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of (liabilities)	(35)	0
Hedge accounting basis adjustment, liabilities, not currently designated	2	0
Not designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of (liabilities)	(21,214)	(25,750)
Hedge accounting basis adjustment, liabilities, not currently designated	131	173
Foreign exchange contracts [Member] | Hedged items currently designated [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	3,000	1,200
Foreign exchange contracts [Member] | Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of (liabilities)	(5,000)	(5,200)
Re-designated as hedging instrument [Member] | Debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedge accounting basis adjustment, assets, currently designated	649	790
Re-designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedge accounting basis adjustment, liabilities, currently designated	$ 136	$ 109

Derivatives, Derivatives Not De

Derivatives, Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivatives (Textual) [Abstract]
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	$ 3,400	$ 962
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	(929)	(151)
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	7,082	(2,638)
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	3,024	929
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	1,219	(885)
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	2,122	(2,412)
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	717	(270)
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	4,334	(71)
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	2,500	816
Economic hedges [Member] | Equity 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	1,191	(878)
Economic hedges [Member] | Foreign exchange 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	627	(24)
Economic hedges [Member] | Credit 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	16	15
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	2,471	811
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	2,471	811
Economic hedges [Member] | Mortgage banking [Member] | Equity 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
Economic hedges [Member] | Mortgage banking [Member] | Foreign exchange 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
Economic hedges [Member] | Mortgage banking [Member] | Credit 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
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	1,219	(885)
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
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Equity 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	1,219	(885)
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Foreign exchange 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
Economic hedges [Member] | Net gain (loss) from equity securities [Member] | Credit 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
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
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
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Equity 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
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Foreign exchange 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
Economic hedges [Member] | Net gain (loss) from trading activities [Member] | Credit 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
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	644	3
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	29	5
Economic hedges [Member] | Other [Member] | Equity 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	(28)	7
Economic hedges [Member] | Other [Member] | Foreign exchange 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	627	(24)
Economic hedges [Member] | Other [Member] | Credit 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	16	15
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	2,748	(2,567)
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	(1,910)	(166)
Customer accommodation trading and other derivatives [Member] | Commodity 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	112	51
Customer accommodation trading and other derivatives [Member] | Equity 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	4,822	(2,422)
Customer accommodation trading and other derivatives [Member] | Foreign exchange 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	(557)	14
Customer accommodation trading and other derivatives [Member] | Credit 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	281	(44)
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	553	118
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	553	118
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Commodity 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
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Equity 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
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Foreign exchange 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
Customer accommodation trading and other derivatives [Member] | Mortgage banking [Member] | Credit 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
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
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
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Commodity 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
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Equity 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
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Foreign exchange 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
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from equity securities [Member] | Credit 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
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	2,122	(2,412)
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	(2,463)	(284)
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Commodity 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	112	51
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Equity 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	4,749	(2,149)
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Foreign exchange 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	(557)	14
Customer accommodation trading and other derivatives [Member] | Net gain (loss) from trading activities [Member] | Credit 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	281	(44)
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	73	(273)
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	0
Customer accommodation trading and other derivatives [Member] | Other [Member] | Commodity 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
Customer accommodation trading and other derivatives [Member] | Other [Member] | Equity 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	73	(273)
Customer accommodation trading and other derivatives [Member] | Other [Member] | Foreign exchange 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
Customer accommodation trading and other derivatives [Member] | Other [Member] | Credit 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

Derivatives, Sold and Purchased

Derivatives, Sold and Purchased Credit Derivatives (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	$ 13	$ 12
Fair value liability	78	65
Notional amount, protection sold	15,035	12,215
Notional amount, protection purchased with identical underlyings	4,439	2,835
Notional amount, net protection sold	10,596	9,380
Notional amount, other protection purchased	21,204	22,595
Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, protection sold	8,311	6,742
Corporate bonds [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	11	8
Fair value liability	11	1
Notional amount, protection sold	3,602	2,855
Notional amount, protection purchased with identical underlyings	2,492	1,885
Notional amount, net protection sold	1,110	970
Notional amount, other protection purchased	$ 2,753	$ 2,447
Corporate bonds [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Jan. 1, 2020	Jan. 1, 2020
Corporate bonds [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Dec. 31, 2029	Dec. 31, 2029
Corporate bonds [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, protection sold	$ 825	$ 707
Structured products [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	0	0
Fair value liability	13	25
Notional amount, protection sold	37	74
Notional amount, protection purchased with identical underlyings	36	63
Notional amount, net protection sold	1	11
Notional amount, other protection purchased	$ 110	$ 111
Structured products [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Jan. 1, 2034	Jan. 1, 2022
Structured products [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
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	$ 37	$ 69
Default swap index [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	2	1
Fair value liability	1	0
Notional amount, protection sold	4,339	2,542
Notional amount, protection purchased with identical underlyings	1,577	550
Notional amount, net protection sold	2,762	1,992
Notional amount, other protection purchased	$ 5,497	$ 8,105
Default swap index [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Jan. 1, 2020	Jan. 1, 2020
Default swap index [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Dec. 31, 2029	Dec. 31, 2029
Default swap index [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, protection sold	$ 1,118	$ 120
Commercial [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	0	3
Fair value liability	28	26
Notional amount, protection sold	318	322
Notional amount, protection purchased with identical underlyings	293	296
Notional amount, net protection sold	25	26
Notional amount, other protection purchased	$ 50	$ 50
Commercial [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Jan. 1, 2047	Jan. 1, 2047
Commercial [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
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	$ 60	$ 67
Asset-backed securities [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	0	0
Fair value liability	8	8
Notional amount, protection sold	41	41
Notional amount, protection purchased with identical underlyings	41	41
Notional amount, net protection sold	0	0
Notional amount, other protection purchased	$ 1	$ 1
Asset-backed securities [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Jan. 1, 2045	Jan. 1, 2045
Asset-backed securities [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
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	$ 41
Other credit derivatives [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	0	0
Fair value liability	17	5
Notional amount, protection sold	6,698	6,381
Notional amount, protection purchased with identical underlyings	0	0
Notional amount, net protection sold	6,698	6,381
Notional amount, other protection purchased	$ 12,793	$ 11,881
Other credit derivatives [Member] | Minimum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Jan. 1, 2020	Jan. 1, 2020
Other credit derivatives [Member] | Maximum [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Range of maturity dates	Dec. 31, 2049	Dec. 31, 2049
Other credit derivatives [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, protection sold	$ 6,230	$ 5,738

Derivatives Credit-Risk Conting

Derivatives Credit-Risk Contingent Features (Details) - USD ($) $ in Billions	Mar. 31, 2020	Dec. 31, 2019
Derivatives [Abstract]
Net derivative liabilities with credit-risk contingent features	$ 16.1	$ 10.4
Collateral posted	13.9	9.1
Additional collateral to be posted upon a below investment grade credit rating	$ 2.2	$ 1.3

Fair Value, Measurements From B

Fair Value, Measurements From Brokers or Third Party Pricing Services (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Financial assets
Trading debt securities	$ 80,425	$ 79,733
Available-for-sale, fair value	251,229	263,459	[1]
Marketable equity securities	28,176	41,936
Derivative assets	82,919	39,326
Financial liabilities
Derivative liabilities	(74,861)	(37,930)
Securities of U.S. Treasury and federal agencies [Member]
Financial assets
Available-for-sale, fair value	11,036	14,960
Securities of U.S. states and political subdivisions [Member]
Financial assets
Available-for-sale, fair value	38,144	40,337
Mortgage-backed securities [Member]
Financial assets
Available-for-sale, fair value	164,644	167,214
Other debt securities [Member]
Financial assets
Available-for-sale, fair value	6,382	4,690
Brokers [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, fair value	18	45
Brokers [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, fair value	123	126
Third party pricing services [Member] | Fair value, inputs, level 1 [Member]
Financial assets
Derivative assets	41	12
Financial liabilities
Derivative liabilities	(25)	(11)
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Debt securities [Member]
Financial assets
Trading debt securities	2,027	634
Available-for-sale, fair value	11,036	13,460
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, fair value	11,036	13,460
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, fair value	0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Mortgage-backed securities [Member]
Financial assets
Available-for-sale, fair value	0	0
Third party pricing services [Member] | Fair value, inputs, level 1 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, fair value	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 2 [Member]
Financial assets
Derivative assets	6	1
Financial liabilities
Derivative liabilities	(8)	(3)
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Debt securities [Member]
Financial assets
Trading debt securities	357	329
Available-for-sale, fair value	235,725	246,607
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, fair value	0	1,500
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, fair value	37,793	39,868
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Mortgage-backed securities [Member]
Financial assets
Available-for-sale, fair value	163,329	167,172
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, fair value	34,603	38,067
Third party pricing services [Member] | Fair value, inputs, level 2 [Member] | Marketable equity securities [Member]
Financial assets
Marketable equity securities	98	110
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, fair value	994	726
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, 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, fair value	66	34
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Mortgage-backed securities [Member]
Financial assets
Available-for-sale, fair value	185	42
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Financial assets
Available-for-sale, fair value	743	650
Third party pricing services [Member] | Fair value, inputs, level 3 [Member] | Marketable equity securities [Member]
Financial assets
Marketable equity securities	$ 0	$ 0
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.

Fair Value, Assets and Liabilit

Fair Value, Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Assets:
Trading debt securities		$ 80,425	$ 79,733
Available-for-sale, fair value		251,229	263,459	[1]
Mortgage servicing rights		8,126	11,517
Derivative assets		82,919	39,326
Net amounts in consolidated balance sheet, assets		25,023	14,203
Marketable equity securities		28,176	41,936
Equity securities	[2]	54,047	68,241
Liabilities:
Total derivative liabilities		(74,861)	(37,930)
Net amounts in consolidated balance sheet, liability		(15,618)	(9,079)
Interest rate contracts [Member]
Assets:
Net amounts in consolidated balance sheet, assets		18,932	9,169
Liabilities:
Net amounts in consolidated balance sheet, liability		(5,276)	(2,771)
Commodity contracts [Member]
Assets:
Net amounts in consolidated balance sheet, assets		782	533
Liabilities:
Net amounts in consolidated balance sheet, liability		(5,149)	(1,093)
Equity contracts [Member]
Assets:
Net amounts in consolidated balance sheet, assets		3,221	2,966
Liabilities:
Net amounts in consolidated balance sheet, liability		(2,808)	(3,817)
Foreign exchange contracts [Member]
Assets:
Net amounts in consolidated balance sheet, assets		2,031	1,492
Liabilities:
Net amounts in consolidated balance sheet, liability		(2,363)	(1,381)
Securities of U.S. Treasury and federal agencies [Member]
Assets:
Available-for-sale, fair value		11,036	14,960
Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale, fair value		38,144	40,337
Mortgage-backed securities [Member]
Assets:
Available-for-sale, fair value		164,644	167,214
Federal agencies [Member]
Assets:
Available-for-sale, fair value		160,214	162,453
Residential [Member]
Assets:
Available-for-sale, fair value		776	827
Commercial [Member]
Assets:
Available-for-sale, fair value		3,654	3,934
Corporate debt securities [Member]
Assets:
Available-for-sale, fair value		5,855	6,563
Collateralized loan obligations [Member]
Assets:
Available-for-sale, fair value		24,582	29,055
Collateralized loan and other debt obligations [Member]
Assets:
Available-for-sale, fair value		25,168	29,695
Other debt securities [Member]
Assets:
Available-for-sale, fair value		6,382	4,690
Fair Value, Recurring [Member]
Assets:
Mortgage loans held for sale		16,665	16,606
Loans held for sale		1,673	972
Loans		160	171
Mortgage servicing rights		8,126	11,517
Fair value asset derivatives, netting		(57,896)	(25,123)
Net amounts in consolidated balance sheet, assets		25,023	14,203
Total assets included in the fair value hierarchy		411,348	428,451
Total assets recorded at fair value		411,477	428,597
Liabilities:
Fair value liability derivatives, netting		59,243	28,851
Net amounts in consolidated balance sheet, liability		(15,618)	(9,079)
Total short sale liabilities		(17,603)	(17,430)
Other liabilities		(2)	(2)
Total liabilities recorded at fair value		(33,223)	(26,511)
Fair Value, Recurring [Member] | Interest rate contracts [Member]
Assets:
Derivative assets		58,609	24,047
Liabilities:
Total derivative liabilities		(47,552)	(19,366)
Fair Value, Recurring [Member] | Commodity contracts [Member]
Assets:
Derivative assets		2,316	1,421
Liabilities:
Total derivative liabilities		(6,838)	(1,770)
Fair Value, Recurring [Member] | Equity contracts [Member]
Assets:
Derivative assets		13,150	8,536
Liabilities:
Total derivative liabilities		(10,354)	(10,464)
Fair Value, Recurring [Member] | Foreign exchange contracts [Member]
Assets:
Derivative assets		8,691	5,214
Liabilities:
Total derivative liabilities		(10,024)	(6,247)
Fair Value, Recurring [Member] | Credit contracts [Member]
Assets:
Derivative assets		153	108
Liabilities:
Total derivative liabilities		(93)	(83)
Fair Value, Recurring [Member] | Debt securities [Member]
Assets:
Trading debt securities		80,425	79,733
Available-for-sale, fair value		251,229	263,459
Fair Value, Recurring [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities		39,707	36,717
Available-for-sale, fair value		11,036	14,960
Liabilities:
Total short sale liabilities		(9,984)	(9,066)
Fair Value, Recurring [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Trading debt securities		2,972	2,434
Available-for-sale, fair value		38,144	40,337
Fair Value, Recurring [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		13	7
Fair Value, Recurring [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		23,915	27,712
Available-for-sale, fair value		164,644	167,214
Fair Value, Recurring [Member] | Federal agencies [Member]
Assets:
Available-for-sale, fair value		160,214	162,453
Fair Value, Recurring [Member] | Residential [Member]
Assets:
Available-for-sale, fair value		776	827
Fair Value, Recurring [Member] | Commercial [Member]
Assets:
Available-for-sale, fair value		3,654	3,934
Fair Value, Recurring [Member] | Mortgage backed securities, other [Member]
Liabilities:
Total short sale liabilities		(92)	(2)
Fair Value, Recurring [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities		12,426	11,044
Available-for-sale, fair value		5,855	6,563
Liabilities:
Total short sale liabilities		(5,520)	(5,915)
Fair Value, Recurring [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities		626	738
Fair Value, Recurring [Member] | Collateralized loan and other debt obligations [Member]
Assets:
Available-for-sale, fair value		25,168	29,695
Fair Value, Recurring [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		766	1,081
Available-for-sale, fair value		4,386	4,689
Fair Value, Recurring [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, fair value		884	951
Fair Value, Recurring [Member] | Home equity loans [Member]
Assets:
Available-for-sale, fair value		12	0
Fair Value, Recurring [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, fair value		3,490	3,738
Fair Value, Recurring [Member] | Other debt securities [Member]
Assets:
Available-for-sale, fair value		1,996	1
Fair Value, Recurring [Member] | Equity securities [Member]
Assets:
Equity securities		28,047	41,790
Liabilities:
Total short sale liabilities		(1,984)	(2,447)
Fair Value, Recurring [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities		21,281	33,921
Fair Value, Recurring [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities		6,766	7,869
Fair Value, Recurring [Member] | Other securities [Member]
Liabilities:
Total short sale liabilities		(23)	0
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		4,611	2,984
Total assets included in the fair value hierarchy		71,732	82,518
Liabilities:
Fair value liability derivatives, netting		0	0
Net amounts in consolidated balance sheet, liability		(4,783)	(2,045)
Total short sale liabilities		(11,865)	(11,482)
Other liabilities		0	0
Total liabilities recorded at fair value		(16,648)	(13,527)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Interest rate contracts [Member]
Assets:
Derivative assets		152	26
Liabilities:
Total derivative liabilities		(158)	(23)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Commodity contracts [Member]
Assets:
Derivative assets		0	0
Liabilities:
Total derivative liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Equity contracts [Member]
Assets:
Derivative assets		4,418	2,946
Liabilities:
Total derivative liabilities		(4,600)	(2,011)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Foreign exchange contracts [Member]
Assets:
Derivative assets		41	12
Liabilities:
Total derivative liabilities		(25)	(11)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Credit contracts [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		35,069	32,335
Available-for-sale, fair value		11,069	13,497
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities		35,069	32,335
Available-for-sale, fair value		11,036	13,460
Liabilities:
Total short sale liabilities		(9,881)	(9,035)
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, 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, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Federal agencies [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Residential [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Commercial [Member]
Assets:
Available-for-sale, 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, fair value		33	37
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
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Collateralized loan and other debt obligations [Member]
Assets:
Available-for-sale, 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, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Home equity loans [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other debt securities [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Equity securities [Member]
Assets:
Equity securities		20,983	33,702
Liabilities:
Total short sale liabilities		(1,984)	(2,447)
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities		20,983	33,702
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 1 [Member] | Other securities [Member]
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member]
Assets:
Mortgage loans held for sale		13,508	15,408
Loans held for sale		1,654	956
Loans		0	0
Mortgage servicing rights		0	0
Fair value asset derivatives, netting		0	0
Net amounts in consolidated balance sheet, assets		76,069	34,586
Total assets included in the fair value hierarchy		374,256	346,760
Liabilities:
Fair value liability derivatives, netting		0	0
Net amounts in consolidated balance sheet, liability		(68,738)	(34,069)
Total short sale liabilities		(5,738)	(5,948)
Other liabilities		0	0
Total liabilities recorded at fair value		(74,476)	(40,017)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Interest rate contracts [Member]
Assets:
Derivative assets		57,695	23,792
Liabilities:
Total derivative liabilities		(47,317)	(19,328)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Commodity contracts [Member]
Assets:
Derivative assets		2,301	1,413
Liabilities:
Total derivative liabilities		(6,779)	(1,746)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Equity contracts [Member]
Assets:
Derivative assets		7,371	4,135
Liabilities:
Total derivative liabilities		(4,610)	(6,729)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Foreign exchange contracts [Member]
Assets:
Derivative assets		8,626	5,197
Liabilities:
Total derivative liabilities		(9,969)	(6,213)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Credit contracts [Member]
Assets:
Derivative assets		76	49
Liabilities:
Total derivative liabilities		(63)	(53)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Debt securities [Member]
Assets:
Trading debt securities		44,967	47,175
Available-for-sale, fair value		237,748	248,397
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities		4,638	4,382
Available-for-sale, fair value		0	1,500
Liabilities:
Total short sale liabilities		(103)	(31)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Trading debt securities		2,972	2,434
Available-for-sale, fair value		37,793	39,924
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		13	5
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		23,738	27,712
Available-for-sale, fair value		164,459	167,172
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Federal agencies [Member]
Assets:
Available-for-sale, fair value		160,214	162,453
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Residential [Member]
Assets:
Available-for-sale, fair value		745	827
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Commercial [Member]
Assets:
Available-for-sale, fair value		3,500	3,892
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Mortgage backed securities, other [Member]
Liabilities:
Total short sale liabilities		(92)	(2)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities		12,392	11,006
Available-for-sale, fair value		4,692	6,159
Liabilities:
Total short sale liabilities		(5,520)	(5,915)
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities		472	555
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Collateralized loan and other debt obligations [Member]
Assets:
Available-for-sale, fair value		24,532	29,055
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		742	1,081
Available-for-sale, fair value		4,276	4,586
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, fair value		884	951
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Home equity loans [Member]
Assets:
Available-for-sale, fair value		12	0
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, fair value		3,380	3,635
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Assets:
Available-for-sale, fair value		1,996	1
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Equity securities [Member]
Assets:
Equity securities		310	238
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities		295	216
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities		15	22
Fair Value, Recurring [Member] | Fair value, inputs, level 2 [Member] | Other securities [Member]
Liabilities:
Total short sale liabilities		(23)	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member]
Assets:
Mortgage loans held for sale		3,157	1,198
Loans held for sale		19	16
Loans		160	171
Mortgage servicing rights		8,126	11,517
Fair value asset derivatives, netting		0	0
Net amounts in consolidated balance sheet, assets		2,239	1,756
Total assets included in the fair value hierarchy		23,256	24,296
Total assets recorded at fair value		23,300	24,300
Liabilities:
Fair value liability derivatives, netting		0	0
Net amounts in consolidated balance sheet, liability		(1,340)	(1,816)
Total short sale liabilities		0	0
Other liabilities		(2)	(2)
Total liabilities recorded at fair value		(1,342)	(1,818)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member]
Assets:
Derivative assets		762	229
Liabilities:
Total derivative liabilities		(77)	(15)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Commodity contracts [Member]
Assets:
Derivative assets		15	8
Liabilities:
Total derivative liabilities		(59)	(24)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member]
Assets:
Derivative assets		1,361	1,455
Liabilities:
Total derivative liabilities		(1,144)	(1,724)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Foreign exchange contracts [Member]
Assets:
Derivative assets		24	5
Liabilities:
Total derivative liabilities		(30)	(23)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member]
Assets:
Derivative assets		77	59
Liabilities:
Total derivative liabilities		(30)	(30)
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Debt securities [Member]
Assets:
Trading debt securities		389	223
Available-for-sale, fair value		2,412	1,565
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities		0	0
Available-for-sale, 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	0
Available-for-sale, fair value		351	413
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other trading debt securities [Member]
Assets:
Trading debt securities		0	2
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Mortgage-backed securities [Member]
Assets:
Trading debt securities		177	0
Available-for-sale, fair value		185	42
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Federal agencies [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Residential [Member]
Assets:
Available-for-sale, fair value		31	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Commercial [Member]
Assets:
Available-for-sale, fair value		154	42
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		34	38
Available-for-sale, fair value		1,130	367
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		154	183
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Collateralized loan and other debt obligations [Member]
Assets:
Available-for-sale, fair value		636	640
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Asset-backed securities [Member]
Assets:
Trading debt securities		24	0
Available-for-sale, fair value		110	103
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Auto loans and leases [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Home equity loans [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other asset-backed securities [Member]
Assets:
Available-for-sale, fair value		110	103
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Assets:
Available-for-sale, fair value		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity securities [Member]
Assets:
Equity securities		6,754	7,850
Liabilities:
Total short sale liabilities		0	0
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities		3	3
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities		6,751	7,847
Fair Value, Recurring [Member] | Fair value, inputs, level 3 [Member] | Other securities [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]
Assets:
Nonmarketable equity securities		$ 129	$ 146
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.
[2]	(2) 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
	Mar. 31, 2020	Mar. 31, 2019
Equity securities [Member]
Assets:
Balance, beginning of period	$ 7,850	$ 5,468
Net gains (losses) included in net income	(1,101)	926
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	0	(1)
Transfers into Level 3	7	0
Transfers out of Level 3	(2)	(12)
Balance, end of period	6,754	6,381
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(1,103)	926
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Marketable equity securities [Member]
Assets:
Balance, beginning of period	3
Net gains (losses) included in net income	0
Net gains (losses) included in other comprehensive income	0
Purchases, sales, issuances and settlements, net	0
Transfers into Level 3	0
Transfers out of Level 3	0
Balance, end of period	3
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Nonmarketable equity securities [Member]
Assets:
Balance, beginning of period	7,847	5,468
Net gains (losses) included in net income	(1,101)	926
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	0	(1)
Transfers into Level 3	7	0
Transfers out of Level 3	(2)	(12)
Balance, end of period	6,751	6,381
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(1,103)	926
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Debt securities [Member]
Assets:
Balance, beginning of period	223	290
Net gains (losses) included in net income	(118)	(2)
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	187	43
Transfers into Level 3	100	1
Transfers out of Level 3	(3)	(1)
Balance, end of period	389	331
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(117)	3
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Balance, beginning of period	0	3
Net gains (losses) included in net income	0	0
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	0	(2)
Transfers into Level 3	0	0
Transfers out of Level 3	0	(1)
Balance, end of period	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Mortgage-backed securities [Member]
Assets:
Balance, beginning of period	0
Net gains (losses) included in net income	(42)
Net gains (losses) included in other comprehensive income	0
Purchases, sales, issuances and settlements, net	171
Transfers into Level 3	48
Transfers out of Level 3	0
Balance, end of period	177
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(42)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Corporate debt securities [Member]
Assets:
Balance, beginning of period	38	34
Net gains (losses) included in net income	(4)	2
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	3	4
Transfers into Level 3	0	1
Transfers out of Level 3	(3)	0
Balance, end of period	34	41
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(3)	2
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Collateralized loan obligations [Member]
Assets:
Balance, beginning of period	183	237
Net gains (losses) included in net income	(69)	(3)
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	19	41
Transfers into Level 3	21	0
Transfers out of Level 3	0	0
Balance, end of period	154	275
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(69)	1
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Asset-backed securities [Member]
Assets:
Balance, beginning of period	0
Net gains (losses) included in net income	(2)
Net gains (losses) included in other comprehensive income	0
Purchases, sales, issuances and settlements, net	(5)
Transfers into Level 3	31
Transfers out of Level 3	0
Balance, end of period	24
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(2)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Trading debt securities [Member] | Other trading debt securities [Member]
Assets:
Balance, beginning of period	2	16
Net gains (losses) included in net income	(1)	(1)
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	(1)	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	0	15
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(1)	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Available-for-sale securities [Member] | Debt securities [Member]
Assets:
Balance, beginning of period	1,565	2,044
Net gains (losses) included in net income	(51)	7
Net gains (losses) included in other comprehensive income	(91)	2
Purchases, sales, issuances and settlements, net	(27)	(48)
Transfers into Level 3	1,087	0
Transfers out of Level 3	(71)	0
Balance, end of period	2,412	2,005
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(59)	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(88)
Available-for-sale securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Balance, beginning of period	413	444
Net gains (losses) included in net income	0	0
Net gains (losses) included in other comprehensive income	(2)	3
Purchases, sales, issuances and settlements, net	(21)	23
Transfers into Level 3	32	0
Transfers out of Level 3	(71)	0
Balance, end of period	351	470
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Available-for-sale securities [Member] | Mortgage-backed securities [Member]
Assets:
Balance, beginning of period	42	41
Net gains (losses) included in net income	(2)	0
Net gains (losses) included in other comprehensive income	(16)	0
Purchases, sales, issuances and settlements, net	24	0
Transfers into Level 3	137	0
Transfers out of Level 3	0	0
Balance, end of period	185	41
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(5)	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(15)
Available-for-sale securities [Member] | Residential [Member]
Assets:
Balance, beginning of period	0	0
Net gains (losses) included in net income	(5)	0
Net gains (losses) included in other comprehensive income	(3)	0
Purchases, sales, issuances and settlements, net	26	0
Transfers into Level 3	13	0
Transfers out of Level 3	0	0
Balance, end of period	31	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(5)	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(3)
Available-for-sale securities [Member] | Commercial [Member]
Assets:
Balance, beginning of period	42	41
Net gains (losses) included in net income	3	0
Net gains (losses) included in other comprehensive income	(13)	0
Purchases, sales, issuances and settlements, net	(2)	0
Transfers into Level 3	124	0
Transfers out of Level 3	0	0
Balance, end of period	154	41
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(12)
Available-for-sale securities [Member] | Corporate debt securities [Member]
Assets:
Balance, beginning of period	367	370
Net gains (losses) included in net income	(52)	1
Net gains (losses) included in other comprehensive income	(16)	4
Purchases, sales, issuances and settlements, net	0	2
Transfers into Level 3	831	0
Transfers out of Level 3	0	0
Balance, end of period	1,130	377
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(54)	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(16)
Available-for-sale securities [Member] | Collateralized loan obligations [Member]
Assets:
Balance, beginning of period	640	800
Net gains (losses) included in net income	3	6
Net gains (losses) included in other comprehensive income	(53)	(4)
Purchases, sales, issuances and settlements, net	(12)	(47)
Transfers into Level 3	58	0
Transfers out of Level 3	0	0
Balance, end of period	636	755
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(53)
Available-for-sale securities [Member] | Asset-backed securities [Member]
Assets:
Balance, beginning of period	103	389
Net gains (losses) included in net income	0	0
Net gains (losses) included in other comprehensive income	(4)	(1)
Purchases, sales, issuances and settlements, net	(18)	(26)
Transfers into Level 3	29	0
Transfers out of Level 3	0	0
Balance, end of period	110	362
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(4)
Available-for-sale securities [Member] | Other asset-backed securities [Member]
Assets:
Balance, beginning of period	103	389
Net gains (losses) included in net income	0	0
Net gains (losses) included in other comprehensive income	(4)	(1)
Purchases, sales, issuances and settlements, net	(18)	(26)
Transfers into Level 3	29	0
Transfers out of Level 3	0	0
Balance, end of period	110	362
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	0	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	(4)
Mortgage loans held for sale [Member]
Assets:
Balance, beginning of period	1,198	997
Net gains (losses) included in net income	(61)	15
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	700	(66)
Transfers into Level 3	1,322	56
Transfers out of Level 3	(2)	(4)
Balance, end of period	3,157	998
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(64)	15
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Loans held for sale [Member]
Assets:
Balance, beginning of period	16	60
Net gains (losses) included in net income	(2)	0
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	(2)	11
Transfers into Level 3	7	37
Transfers out of Level 3	0	(37)
Balance, end of period	19	71
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	1	0
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Loans [Member]
Assets:
Balance, beginning of period	171	244
Net gains (losses) included in net income	0	0
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	(11)	(19)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	160	225
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(2)	(2)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Mortgage servicing rights [Member]
Assets:
Balance, beginning of period	11,517	14,649
Net gains (losses) included in net income	(3,821)	(1,373)
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	430	60
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	8,126	13,336
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(3,257)	(891)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Derivative [Member]
Assets and Liabilities:
Balance, beginning of period	(60)	21
Net gains (losses) included in net income	1,119	32
Total net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	(137)	(78)
Transfers into Level 3	(16)	11
Transfers out of Level 3	(7)	(32)
Balance, end of period	899	(46)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	970	27
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Derivative [Member] | Interest rate contracts [Member]
Assets and Liabilities:
Balance, beginning of period	214	25
Net gains (losses) included in net income	744	187
Total net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	(273)	(111)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	685	101
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	531	132
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Derivative [Member] | Commodity contracts [Member]
Assets and Liabilities:
Balance, beginning of period	(16)	4
Net gains (losses) included in net income	(80)	(51)
Total net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	58	27
Transfers into Level 3	(6)	2
Transfers out of Level 3	0	0
Balance, end of period	(44)	(18)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(27)	(15)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Derivative [Member] | Equity contracts [Member]
Assets and Liabilities:
Balance, beginning of period	(269)	(17)
Net gains (losses) included in net income	430	(119)
Total net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	73	(3)
Transfers into Level 3	(10)	9
Transfers out of Level 3	(7)	(32)
Balance, end of period	217	(162)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	451	(114)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Derivative [Member] | Foreign exchange contracts [Member]
Assets and Liabilities:
Balance, beginning of period	(18)	(26)
Net gains (losses) included in net income	10	7
Total net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	2	3
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	(6)	(16)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	(2)	11
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Derivative [Member] | Credit contracts [Member]
Assets and Liabilities:
Balance, beginning of period	29	35
Net gains (losses) included in net income	15	8
Total net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	3	6
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	47	49
Net unrealized gains (losses) related to assets and liabilities held at period end and included in net income	17	13
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	0
Other liabilities [Member]
Liabilities:
Balance, beginning of period	(2)	(2)
Net gains (losses) included in net income	0	0
Net gains (losses) included in other comprehensive income	0	0
Purchases, sales, issuances and settlements, net	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Balance, end of period	(2)	(2)
Net unrealized gains (losses) related to assets and liabilities held at period end and include in net income	0	$ 0
Net unrealized gains (losses) related to assets and liabilities held at period end and include in other comprehensive income	$ 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
	Mar. 31, 2020	Mar. 31, 2019
Equity securities [Member]
Assets:
Purchases	$ 0	$ 0
Sales	0	(1)
Issuances	0	0
Settlements	0	0
Net	0	(1)
Marketable equity securities [Member]
Assets:
Purchases	0
Sales	0
Issuances	0
Settlements	0
Net	0
Nonmarketable equity securities [Member]
Assets:
Purchases	0	0
Sales	0	(1)
Issuances	0	0
Settlements	0	0
Net	0	(1)
Trading debt securities [Member] | Debt securities [Member]
Assets:
Purchases	290	135
Sales	(93)	(88)
Issuances	0	0
Settlements	(10)	(4)
Net	187	43
Trading debt securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	0	(2)
Net	0	(2)
Trading debt securities [Member] | Mortgage-backed securities [Member]
Assets:
Purchases	195
Sales	(24)
Issuances	0
Settlements	0
Net	171
Trading debt securities [Member] | Corporate debt securities [Member]
Assets:
Purchases	10	5
Sales	(7)	(1)
Issuances	0	0
Settlements	0	0
Net	3	4
Trading debt securities [Member] | Collateralized loan obligations [Member]
Assets:
Purchases	85	130
Sales	(56)	(87)
Issuances	0	0
Settlements	(10)	(2)
Net	19	41
Trading debt securities [Member] | Asset-backed securities [Member]
Assets:
Purchases	0
Sales	(5)
Issuances	0
Settlements	0
Net	(5)
Trading debt securities [Member] | Other trading debt securities [Member]
Assets:
Purchases	0	0
Sales	(1)	0
Issuances	0	0
Settlements	0	0
Net	(1)	0
Available-for-sale securities [Member] | Debt securities [Member]
Assets:
Purchases	26	3
Sales	(5)	(3)
Issuances	0	115
Settlements	(48)	(163)
Net	(27)	(48)
Available-for-sale securities [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Purchases	0	0
Sales	0	0
Issuances	0	49
Settlements	(21)	(26)
Net	(21)	23
Available-for-sale securities [Member] | Mortgage-backed securities [Member]
Assets:
Purchases	26	0
Sales	0	0
Issuances	0	0
Settlements	(2)	0
Net	24	0
Available-for-sale securities [Member] | Residential [Member]
Assets:
Purchases	26	0
Sales	0	0
Issuances	0	0
Settlements	0	0
Net	26	0
Available-for-sale securities [Member] | Commercial [Member]
Assets:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	(2)	0
Net	(2)	0
Available-for-sale securities [Member] | Corporate debt securities [Member]
Assets:
Purchases	0	3
Sales	0	0
Issuances	0	0
Settlements	0	(1)
Net	0	2
Available-for-sale securities [Member] | Collateralized loan obligations [Member]
Assets:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	(12)	(47)
Net	(12)	(47)
Available-for-sale securities [Member] | Asset-backed securities [Member]
Assets:
Purchases	0	0
Sales	(5)	(3)
Issuances	0	66
Settlements	(13)	(89)
Net	(18)	(26)
Available-for-sale securities [Member] | Other asset-backed securities [Member]
Assets:
Purchases	0	0
Sales	(5)	(3)
Issuances	0	66
Settlements	(13)	(89)
Net	(18)	(26)
Mortgage loans held for sale [Member]
Assets:
Purchases	23	16
Sales	(69)	(93)
Issuances	843	46
Settlements	(97)	(35)
Net	700	(66)
Loans held for sale [Member]
Assets:
Purchases	0	12
Sales	(1)	(1)
Issuances	0	0
Settlements	(1)	0
Net	(2)	11
Loans [Member]
Assets:
Purchases	1	2
Sales	0	0
Issuances	2	3
Settlements	(14)	(24)
Net	(11)	(19)
Mortgage servicing rights [Member]
Assets:
Purchases	0	0
Sales	(32)	(281)
Issuances	461	341
Settlements	1	0
Net	430	60
Derivative [Member]
Assets and Liabilities:
Purchases	6	6
Sales	(3)	0
Issuances	0	0
Settlements	(140)	(84)
Net	(137)	(78)
Derivative [Member] | Interest rate contracts [Member]
Assets and Liabilities:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	(273)	(111)
Net	(273)	(111)
Derivative [Member] | Commodity contracts [Member]
Assets and Liabilities:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	58	27
Net	58	27
Derivative [Member] | Equity contracts [Member]
Assets and Liabilities:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	73	(3)
Net	73	(3)
Derivative [Member] | Foreign exchange contracts [Member]
Assets and Liabilities:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	2	3
Net	2	3
Derivative [Member] | Credit contracts [Member]
Assets and Liabilities:
Purchases	6	6
Sales	(3)	0
Issuances	0	0
Settlements	0	0
Net	3	6
Other liabilities [Member]
Liabilities:
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	0	0
Net	$ 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	3 Months Ended	12 Months Ended
	Mar. 31, 2020USD ($)$ / loan	Dec. 31, 2019USD ($)$ / loan
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 8,126	$ 11,517
Recurring [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale, carried at fair value	16,665	16,606
Loans	160	171
Mortgage servicing rights	8,126	11,517
Fair Value Disclosures, Textual [Abstract]
Total assets recorded at fair value	411,477	428,597
Total liabilities recorded at fair value	33,223	26,511
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	3,157	1,198
Loans	160	171
Mortgage servicing rights	8,126	11,517
Total insignificant level 3 assets, net of liabilities	(30)	27
Assets, fair value disclosure, net of liabilities	21,914	22,478
Fair Value Disclosures, Textual [Abstract]
Total assets recorded at fair value	23,300	24,300
Total liabilities recorded at fair value	1,342	1,818
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	2,205	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	952	1,183
Loans	160	171
Mortgage servicing rights	$ 8,126	$ 11,517
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.027	0.030
Loans, measurement input	0.039	0.039
Mortgage servicing rights, measurement input	0.063	0.060
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.055	0.056
Loans, measurement input	0.044	0.043
Mortgage servicing rights, measurement input	0.094	0.136
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.047	0.045
Loans, measurement input	0.042	0.041
Mortgage servicing rights, measurement input	0.071	0.072
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	(0.533)	(0.563)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0	(0.063)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	(0.063)	(0.403)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0	0
Loans, measurement input	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.182	0.155
Loans, measurement input	0.231
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.012	0.007
Loans, measurement input	0.008
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Minimum [Member] | Discounted cash flow [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] | Measurement input, loss severity [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.320	0.435
Loans, measurement input	0.397	0.365
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.228	0.217
Loans, measurement input	0.142	0.141
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost of service per loan [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	59	61
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost of service per loan [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	622	495
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost of service per loan [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	112	102
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.073	0.057
Loans, measurement input	0.078	0.060
Mortgage servicing rights, measurement input	0.113	0.096
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.182	0.154
Loans, measurement input	1	1
Mortgage servicing rights, measurement input	0.266	0.244
Recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage loans held for sale, measurement input	0.128	0.078
Loans, measurement input	0.850	0.856
Mortgage servicing rights, measurement input	0.157	0.119
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 65
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 255	$ 146
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.141)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.089)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.118)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, default rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, default rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.050	0.050
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, default rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.016	0.017
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, loss severity [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.500	0.500
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, loss severity [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.500	0.500
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, loss severity [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.500	0.500
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, prepayment rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.028	0.028
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, prepayment rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.220	0.250
Recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, prepayment rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.148	0.150
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)	$ 365	$ 68
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, fall-out factor [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.010	0.010
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, fall-out factor [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.990	0.990
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, fall-out factor [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.280	0.167
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, initial-value servicing [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.00371)	(0.00322)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, initial-value servicing [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.0134	0.0149
Recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, initial-value servicing [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.00350	0.00364
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 123	$ 147
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Option model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 94	$ (416)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, weighted average life [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), term of contract	3 months 18 days	6 months
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, weighted average life [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), term of contract	2 years 9 months 18 days	3 years
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, weighted average life [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), term of contract	1 year 4 months 24 days	1 year 6 months
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, conversion factor [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.090)	(0.088)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, conversion factor [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, conversion factor [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.077)	(0.077)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, correlation factor [Member] | Minimum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.770)	(0.770)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, correlation factor [Member] | Maximum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.990	0.990
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, correlation factor [Member] | Weighted average [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.374	0.238
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, price volatility [Member] | Minimum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.065	0.068
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, price volatility [Member] | Maximum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.929	1
Recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, price volatility [Member] | Weighted average [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.263	0.187
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 3	$ 2
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Option model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 44	$ 27
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.789)	(0.561)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	1.352	0.108
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.136)	(0.160)
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, credit spread [Member] | Minimum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.001	0
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, credit spread [Member] | Maximum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.492	0.178
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, credit spread [Member] | Weighted average [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.027	0.008
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, loss severity [Member] | Minimum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.120	0.120
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, loss severity [Member] | Maximum [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.600	0.600
Recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member] | Measurement input, loss severity [Member] | Weighted average [Member] | Option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.456	0.456
Recurring [Member] | Non modified loans [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost of service per loan [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	59	61
Recurring [Member] | Non modified loans [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost of service per loan [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	229	231
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	$ 285	$ 379
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	$ 66	$ 34
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.016	0.013
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.054	0.054
Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.023	0.024
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	$ 154	$ 183
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	$ 636	$ 640
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.278)	(0.150)
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	1.379	0.192
Recurring [Member] | Collateralized loan obligations [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.068	0.013
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	$ 103	$ 60
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	865	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	$ 196	$ 125
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.040	0.032
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.149	0.149
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.055	0.092
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.327)	(0.197)
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.142	0.140
Recurring [Member] | Corporate debt securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.083)	(0.044)
Recurring [Member] | Mortgage-backed 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	$ 177
Recurring [Member] | Mortgage-backed 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	$ 185
Recurring [Member] | Mortgage-backed securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.606)
Recurring [Member] | Mortgage-backed securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.262
Recurring [Member] | Mortgage-backed securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.046)
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	$ 76	$ 92
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Minimum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.025	0.023
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Maximum [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.047	0.031
Recurring [Member] | Diversified payment rights [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Weighted average [Member] | Discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	0.037	0.028
Recurring [Member] | Other commercial and consumer [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	$ 24
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	$ 34	$ 11
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.070)
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.056)
Recurring [Member] | Other commercial and consumer [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Debt securities, available-for-sale, measurement input	(0.058)
Recurring [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 6,766	7,869
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	6,751	7,847
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	$ 6,751	$ 7,847
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Minimum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.035	(0.202)
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Maximum [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.229	(0.042)
Recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Weighted average [Member] | Market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.144	(0.146)

Fair Value, Assets Recorded at

Fair Value, Assets Recorded at Fair Value on Nonrecurring Basis (Details) - Nonrecurring [Member] - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 4,318	$ 5,837
Loans held for sale	161	5
Loans	310	494
Other assets	599	386
Total assets recorded at fair value	6,871	8,203
Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	1,483	1,481
Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	207	280
Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	103	214
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
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
Level 1 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Level 1 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	1,450	2,034
Loans held for sale	161	5
Loans	310	493
Other assets	209	359
Total assets recorded at fair value	2,769	4,199
Level 2 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	639	1,308
Level 2 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	207	280
Level 2 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	103	213
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	2,868	3,803
Loans held for sale	0	0
Loans	0	1
Other assets	390	27
Total assets recorded at fair value	4,102	4,004
Level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	844	173
Other assets	390
Level 3 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Level 3 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 0	$ 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	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Mortgage loans held for sale	$ (38)	$ 20
Loans held for sale	(1)	0
Loans	(166)	(153)
Nonmarketable equity securities	(424)	149
Other assets	(334)	(18)
Total	(963)	(2)
Total Commercial [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	(95)	(74)
Total Consumer [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	$ (71)	$ (79)

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] $ in Millions	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	$ 4,318	$ 5,837
Total assets recorded at fair value	6,871	8,203
Other assets	599	386
Residential [Member] | Non-government insured/guaranteed [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	1,600	2,500
Residential [Member] | Government insured or guaranteed [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	1,300	1,300
Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities	$ 1,483	$ 1,481
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, measurement input	0.40%	0.30%
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, measurement input	51.30%	48.30%
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, measurement input	7.20%	4.60%
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, measurement input	1.50%	1.50%
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, measurement input	8.70%	9.40%
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, measurement input	4.10%	4.30%
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, measurement input	0.50%	0.40%
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, measurement input	72.10%	100.00%
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, measurement input	16.20%	23.40%
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, measurement input	5.00%	4.80%
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, 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, measurement input	23.80%	23.20%
Measurement input, multiples [Member] | Market comparable pricing [Member] | Minimum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.1
Measurement input, multiples [Member] | Market comparable pricing [Member] | Maximum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	11.6
Measurement input, multiples [Member] | Market comparable pricing [Member] | Weighted average [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	4.9
Measurement input, comparability adjustment [Member] | Market comparable pricing [Member] | Minimum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(1)
Measurement input, comparability adjustment [Member] | Market comparable pricing [Member] | Maximum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.060)
Measurement input, comparability adjustment [Member] | Market comparable pricing [Member] | Weighted average [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.455)
Measurement input, company risk factor [Member] | Valuation technique, other [Member] | Minimum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(1)
Measurement input, company risk factor [Member] | Valuation technique, other [Member] | Maximum [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.200)
Measurement input, company risk factor [Member] | Valuation technique, other [Member] | Weighted average [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.409)
Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage loans held for sale	$ 2,868	$ 3,803
Insignificant level 3 assets	2	201
Total assets recorded at fair value	4,102	4,004
Other assets	390	27
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Other assets	390
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities	844	173
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	2,868	$ 3,803
Fair value, inputs, level 3 [Member] | Valuation technique, other [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities	226
Fair value, inputs, level 3 [Member] | Measurement input, multiples [Member] | Market comparable pricing [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities	658
Fair value, inputs, level 3 [Member] | Measurement input, comparability adjustment [Member] | Market comparable pricing [Member] | Nonmarketable equity securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities	$ 348

Fair Value, Option, Carrying Am

Fair Value, Option, Carrying Amount (Details) - Fair value option election [Member] - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans held for sale	$ 16,665	$ 16,606
Loans held for sale	1,673	972
Loans	160	171
Mortgage loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans held for sale	16,665	16,606
Mortgage loans held for sale, aggregate unpaid principal	16,096	16,279
Loans, loans held for sale and mortgage loans held for sale, aggregate difference	569	327
Nonaccrual loans	131	133
Nonaccrual loans, aggregate unpaid principal	155	157
Nonaccrual loans, aggregate difference	(24)	(24)
Loans 90 days or more past due and still accruing	10	8
Loans 90 days or more past due and still accruing, unpaid principal	13	10
Loans 90 days or more past due and still accruing, aggregate difference	(3)	(2)
Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale	1,673	972
Loans held for sale, aggregate unpaid principal	1,804	1,020
Loans, loans held for sale and mortgage loans held for sale, aggregate difference	(131)	(48)
Nonaccrual loans	17	21
Nonaccrual loans, aggregate unpaid principal	30	29
Nonaccrual loans, aggregate difference	(13)	(8)
Loans [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans	160	171
Loans, aggregate unpaid principal	189	201
Loans, loans held for sale and mortgage loans held for sale, aggregate difference	(29)	(30)
Nonaccrual loans	123	129
Nonaccrual loans, aggregate unpaid principal	151	159
Nonaccrual loans, aggregate difference	$ (28)	$ (30)

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
	Mar. 31, 2020	Mar. 31, 2019
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	$ 348	$ 214
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
Mortgage banking noninterest income [Member] | Loans [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	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
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	(13)	14
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
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
Other noninterest income [Member] | Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	0	1
Other noninterest income [Member] | Loans [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) on changes in fair value	$ 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
	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) attributable to instrument-specific credit risk	$ (194)	$ 10
Mortgage loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) attributable to instrument-specific credit risk	(182)	(4)
Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) attributable to instrument-specific credit risk	$ (12)	$ 14

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		Mar. 31, 2020	Dec. 31, 2019
Financial assets
Cash and due from banks		$ 22,738	$ 21,757
Interest-earning deposits with banks		128,071	119,493
Federal funds sold and securities purchased under resale agreements		86,465	102,140
Held-to-maturity, amortized cost, net		169,909	153,933	[1]
Loans, net		998,580	952,714
Financial liabilities
Deposits		1,376,532	1,322,626
Short-term borrowings		92,289	104,512
Long-term debt		237,342	228,191
Mortgage loans [Member]
Financial assets
Loans held for sale	[2]	21,795	23,342
Loans, excluding mortgage loans [Member]
Financial assets
Loans held for sale	[2]	1,883	977
Carrying amount [Member]
Financial assets
Cash and due from banks		22,738	21,757
Interest-earning deposits with banks		128,071	119,493
Federal funds sold and securities purchased under resale agreements		86,465	102,140
Held-to-maturity, amortized cost, net		169,909	153,933
Loans, net		979,449	933,042
Nonmarketable equity securities		4,512	4,790
Financial assets fair value disclosure		1,396,484	1,341,896
Financial liabilities
Deposits		110,841	118,849
Short-term borrowings		92,289	104,512
Long-term debt		237,311	228,159
Financial liabilities fair value disclosure		440,441	451,520
Fair Value Disclosures, Textual [Abstract]
Deposit liabilities with no defined or contractual maturity		1,300,000	1,200,000
Carrying amount [Member] | Finance leases [Member]
Financial liabilities
Long-term debt		31	32
Carrying amount [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		5,130	6,736
Carrying amount [Member] | Loans, excluding mortgage loans [Member]
Financial assets
Loans held for sale		210	5
Carrying amount [Member] | Commercial lease financing receivable [Member]
Financial assets
Loans, net		19,000	19,500
Estimated fair value [Member]
Financial assets
Cash and due from banks		22,738	21,757
Interest-earning deposits with banks		128,071	119,493
Federal funds sold and securities purchased under resale agreements		86,465	102,140
Held-to-maturity, amortized cost, net		177,562	156,860
Loans, net		976,422	945,839
Nonmarketable equity securities		4,548	4,823
Financial assets fair value disclosure		1,401,693	1,358,577
Financial liabilities
Deposits		111,297	119,137
Short-term borrowings		92,289	104,513
Long-term debt		228,215	233,052
Financial liabilities fair value disclosure		431,801	456,702
Fair Value Disclosures, Textual [Abstract]
Loan commitments and standby, commercial and similar letters of credit		853	1,000
Estimated fair value [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		5,677	7,660
Estimated fair value [Member] | Loans, excluding mortgage loans [Member]
Financial assets
Loans held for sale		210	5
Estimated fair value [Member] | Fair value, inputs, level 1 [Member]
Financial assets
Cash and due from banks		22,738	21,757
Interest-earning deposits with banks		127,831	119,257
Federal funds sold and securities purchased under resale agreements		0	0
Held-to-maturity, amortized cost, net		50,691	46,138
Loans, net		0	0
Nonmarketable equity securities		0	0
Financial assets fair value disclosure		201,260	187,152
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, excluding mortgage loans [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		240	236
Federal funds sold and securities purchased under resale agreements		86,465	102,140
Held-to-maturity, amortized cost, net		126,030	109,933
Loans, net		53,806	54,125
Nonmarketable equity securities		0	0
Financial assets fair value disclosure		269,036	269,378
Financial liabilities
Deposits		82,565	87,279
Short-term borrowings		92,289	104,513
Long-term debt		226,294	231,332
Financial liabilities fair value disclosure		401,148	423,124
Estimated fair value [Member] | Fair value, inputs, level 2 [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		2,285	2,939
Estimated fair value [Member] | Fair value, inputs, level 2 [Member] | Loans, excluding mortgage loans [Member]
Financial assets
Loans held for sale		210	5
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, amortized cost, net		841	789
Loans, net		922,616	891,714
Nonmarketable equity securities		4,548	4,823
Financial assets fair value disclosure		931,397	902,047
Financial liabilities
Deposits		28,732	31,858
Short-term borrowings		0	0
Long-term debt		1,921	1,720
Financial liabilities fair value disclosure		30,653	33,578
Estimated fair value [Member] | Fair value, inputs, level 3 [Member] | Mortgage loans [Member]
Financial assets
Loans held for sale		3,392	4,721
Estimated fair value [Member] | Fair value, inputs, level 3 [Member] | Loans, excluding mortgage loans [Member]
Financial assets
Loans held for sale		$ 0	$ 0
[1]	(1) Prior to our adoption of CECL on January 1, 2020, the allowance for credit losses (ACL) related to available-for-sale (AFS) and held-to-maturity (HTM) debt securities was not applicable and is therefore presented as $0 at December 31, 2019. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.
[2]	(2) 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	Mar. 16, 2020USD ($)	Mar. 31, 2020USD ($)vote$ / sharesshares	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)$ / sharesshares
Class of Stock [Line Items]
Preferred stock redeemed		$ 2,470	$ 0
Detail of Preferred Stock [Abstract]
Preferred Stock, Shares authorized and designated | shares		5,832,228		9,251,728
ESOP, Liquidation preference per share | $ / shares		$ 0		$ 0
ESOP, Shares authorized and designated | shares		1,071,418		1,071,418
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		5,743,949		7,492,169
Voting Rights		If issued, preference shares would be limited to one vote per share
Preferred Stock, Liquidation preference value		$ 22,115		$ 22,573
Carrying value		21,347		21,549
Discount		$ 768		$ 1,024
ESOP Shares issued and outstanding | shares		1,071,418		1,071,418
ESOP Liquidation preference value		$ 1,072		$ 1,072
ESOP Carrying value		1,072		1,072
ESOP Discount		$ 0		$ 0
Preferred Stock, No Voting Rights [Member]
Class of Stock [Line Items]
Preferred shares authorized | shares		20,000,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, Par or stated value		$ 0
Preferred Stock, Voting Rights [Member]
Class of Stock [Line Items]
Preferred shares authorized | shares		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
Preferred Stock, Par or stated value		$ 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
Preferred Stock, Shares authorized and designated | shares		97,000		97,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		96,546		96,546
Preferred Stock, Liquidation preference value		$ 0		$ 0
Carrying value		0		0
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		25,010		25,010
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		25,010		25,010
Preferred Stock, Liquidation preference value		$ 2,501		$ 2,501
Carrying value		2,501		2,501
Discount		$ 0		$ 0
Series K - Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock redeemed	$ 1,800
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		$ 0		$ 1,000
Preferred Stock, Shares authorized and designated | shares		0		3,500,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		0		1,802,000
Preferred Stock, Liquidation preference value		$ 0		$ 1,802
Carrying value		0		1,546
Discount		$ 0		$ 256
Series L - 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock [Member]
Class of Stock [Line Items]
Number of common stock shares per preferred share | $ / shares				$ 6.3814
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
Preferred Stock, Shares authorized and designated | shares		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
Preferred Stock, Liquidation preference value		$ 3,968		$ 3,968
Carrying value		3,200		3,200
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		30,000		30,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		30,000		30,000
Preferred Stock, Liquidation preference value		$ 750		$ 750
Carrying value		750		750
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		27,600		27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		26,000		26,000
Preferred Stock, Liquidation preference value		$ 650		$ 650
Carrying value		650		650
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		26,400		26,400
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		25,000		25,000
Preferred Stock, Liquidation preference value		$ 625		$ 625
Carrying value		625		625
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		69,000		69,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		69,000		69,000
Preferred Stock, Liquidation preference value		$ 1,725		$ 1,725
Carrying value		1,725		1,725
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		34,500		34,500
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		33,600		33,600
Preferred Stock, Liquidation preference value		$ 840		$ 840
Carrying value		840		840
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		80,000		80,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		80,000		80,000
Preferred Stock, Liquidation preference value		$ 2,000		$ 2,000
Carrying value		2,000		2,000
Discount		$ 0		$ 0
Series T - 6.00% Non-Cumulative Perpetual Class A Preferred Stock[Member]
Class of Stock [Line Items]
Preferred stock redeemed	$ 669
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
Preferred Stock, Shares authorized and designated | shares		32,200		32,200
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		5,280		32,000
Preferred Stock, Liquidation preference value		$ 131		$ 800
Carrying value		131		800
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		80,000		80,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		80,000		80,000
Preferred Stock, Liquidation preference value		$ 2,000		$ 2,000
Carrying value		2,000		2,000
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		40,000		40,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		40,000		40,000
Preferred Stock, Liquidation preference value		$ 1,000		$ 1,000
Carrying value		1,000		1,000
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		40,000		40,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		40,000		40,000
Preferred Stock, Liquidation preference value		$ 1,000		$ 1,000
Carrying value		1,000		1,000
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		46,000		46,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		46,000		46,000
Preferred Stock, Liquidation preference value		$ 1,150		$ 1,150
Carrying value		1,150		1,150
Discount		$ 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
Preferred Stock, Shares authorized and designated | shares		27,600		27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		27,600		27,600
Preferred Stock, Liquidation preference value		$ 690		$ 690
Carrying value		690		690
Discount		$ 0		$ 0
Series Z - 4.750% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred Stock, dividend rate (percent)		4.75%	0.00%
Preferred Stock, Liquidation preference per share (in dollars per share) | $ / shares		$ 25,000		$ 0
Preferred Stock, Shares authorized and designated | shares		80,500		0
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares		80,500		0
Preferred Stock, Liquidation preference value		$ 2,013		$ 0
Carrying value		2,013		0
Discount		$ 0		$ 0

ESOP Preferred Stock (Details)

ESOP Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Class of Stock [Line Items]
Additional paid-in capital included related to preferred stock	$ 71		$ 71
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	1,071,418		1,071,418
Carrying value	$ 1,072		$ 1,072
Unearned ESOP shares	$ (1,143)		$ (1,143)
Employee Stock Ownership Plan Preferred Stock 2018 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	254,945		254,945
Carrying value	$ 255		$ 255
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		192,210
Carrying value	$ 192		$ 192
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		197,450
Carrying value	$ 198		$ 198
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		116,784
Carrying value	$ 117		$ 117
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		136,151
Carrying value	$ 136		$ 136
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		97,948
Carrying value	$ 98		$ 98
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		49,134
Carrying value	$ 49		$ 49
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		26,796
Carrying value	$ 27		$ 27
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%
Equity award [Member] | Convertible preferred stock [Member] | Minimum [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
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	$ 11,312	$ 12,311
Mortgage banking	379	708
Insurance	95	96
Net gains (losses) from trading activities	64	357
Net gains (losses) on debt securities	237	125
Net gains (losses) from equity securities	(1,401)	814
Lease income	352	443
Other income of the segment (1)	372	574
Total noninterest income	6,405	9,298
Revenue	17,717	21,609
Service charges on deposit accounts [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,209	1,094
Trust and investment fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	3,574	3,373
Brokerage advisory, commissions and other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,482	2,193
Trust and investment management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	701	786
Investment banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	391	394
Card fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	892	944
Other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	632	770
Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	328	347
Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	106	109
Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1	81
Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	110	113
All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	87	120
Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	(478)	(572)
Mortgage banking	2	2
Insurance	(10)	(10)
Net gains (losses) from trading activities	1	0
Net gains (losses) on debt securities	0	0
Net gains (losses) from equity securities	0	0
Lease income	0	0
Other income of the segment (1)	(88)	(69)
Total noninterest income	(833)	(759)
Revenue	(1,311)	(1,331)
Other [Member] | Service charges on deposit accounts [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(4)	(3)
Other [Member] | Trust and investment fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(730)	(675)
Other [Member] | Brokerage advisory, commissions and other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(523)	(458)
Other [Member] | Trust and investment management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(206)	(214)
Other [Member] | Investment banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(3)
Other [Member] | Card fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(1)
Other [Member] | Other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(3)	(3)
Other [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(2)	(2)
Other [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0
Other [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0
Other [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(1)
Other [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0
Community Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	6,787	7,248
Mortgage banking	340	641
Insurance	11	11
Net gains (losses) from trading activities	29	5
Net gains (losses) on debt securities	194	37
Net gains (losses) from equity securities	(1,028)	601
Lease income	0	0
Other income of the segment (1)	756	768
Total noninterest income	2,709	4,502
Revenue	9,496	11,750
Community Banking [Member] | Service charges on deposit accounts [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	700	610
Community Banking [Member] | Trust and investment fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	613	639
Community Banking [Member] | Brokerage advisory, commissions and other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	518	449
Community Banking [Member] | Trust and investment management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	194	210
Community Banking [Member] | Investment banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(99)	(20)
Community Banking [Member] | Card fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	809	858
Community Banking [Member] | Other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	285	332
Community Banking [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	50	65
Community Banking [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	106	109
Community Banking [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0
Community Banking [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	66	64
Community Banking [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	63	94
Wholesale Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	4,136	4,534
Mortgage banking	40	68
Insurance	75	78
Net gains (losses) from trading activities	41	333
Net gains (losses) on debt securities	43	88
Net gains (losses) from equity securities	(95)	77
Lease income	352	443
Other income of the segment (1)	(423)	(120)
Total noninterest income	1,681	2,577
Revenue	5,817	7,111
Wholesale Banking [Member] | Service charges on deposit accounts [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	508	483
Wholesale Banking [Member] | Trust and investment fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	711	604
Wholesale Banking [Member] | Brokerage advisory, commissions and other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	90	78
Wholesale Banking [Member] | Trust and investment management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	131	114
Wholesale Banking [Member] | Investment banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	490	412
Wholesale Banking [Member] | Card fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	83	86
Wholesale Banking [Member] | Other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	346	437
Wholesale Banking [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	278	282
Wholesale Banking [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0
Wholesale Banking [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1	81
Wholesale Banking [Member] | Wire transfer and other remittance fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	43	48
Wholesale Banking [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	24	26
Wealth and Investment Management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income	867	1,101
Mortgage banking	(3)	(3)
Insurance	19	17
Net gains (losses) from trading activities	(7)	19
Net gains (losses) on debt securities	0	0
Net gains (losses) from equity securities	(278)	136
Lease income	0	0
Other income of the segment (1)	127	(5)
Total noninterest income	2,848	2,978
Revenue	3,715	4,079
Wealth and Investment Management [Member] | Service charges on deposit accounts [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	5	4
Wealth and Investment Management [Member] | Trust and investment fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,980	2,805
Wealth and Investment Management [Member] | Brokerage advisory, commissions and other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,397	2,124
Wealth and Investment Management [Member] | Trust and investment management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	582	676
Wealth and Investment Management [Member] | Investment banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1	5
Wealth and Investment Management [Member] | Card fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1	1
Wealth and Investment Management [Member] | Other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	4	4
Wealth and Investment Management [Member] | Lending related charges and fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2	2
Wealth and Investment Management [Member] | Cash network fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0
Wealth and Investment Management [Member] | Commercial real estate brokerage commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	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
Wealth and Investment Management [Member] | All other fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	$ 0	$ 0

Revenue from Contracts with C_4

Revenue from Contracts with Customers, Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Fee income	$ 1,209	$ 1,094
Overdraft fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	485	418
Account charges [Member]
Disaggregation of Revenue [Line Items]
Fee income	724	676
Brokerage advisory, commissions and other fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	2,482	2,193
Asset-based revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	1,805	1,580
Trailing commissions [Member]
Disaggregation of Revenue [Line Items]
Fee income	275	280
Transactional revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	430	394
Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	247	219
Trust and investment management [Member]
Disaggregation of Revenue [Line Items]
Fee income	701	786
Investment management fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	489	478
Trust fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	179	245
Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	33	63
Card fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	892	944
Credit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	217	275
Credit card rewards and rebates [Member]
Disaggregation of Revenue [Line Items]
Other cost of revenue	385	354
Debit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	513	507
Late fees, cash advance fees, balance transfer fees, and annual fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	162	162
Other [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Fee income	(4)	(3)
Other [Member] | Overdraft fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Other [Member] | Account charges [Member]
Disaggregation of Revenue [Line Items]
Fee income	(4)	(3)
Other [Member] | Brokerage advisory, commissions and other fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	(523)	(458)
Other [Member] | Asset-based revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	(398)	(343)
Other [Member] | Transactional revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	(107)	(98)
Other [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	(18)	(17)
Other [Member] | Trust and investment management [Member]
Disaggregation of Revenue [Line Items]
Fee income	(206)	(214)
Other [Member] | Investment management fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Other [Member] | Trust fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	(206)	(214)
Other [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Other [Member] | Card fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	(1)	(1)
Other [Member] | Credit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	(1)	(1)
Other [Member] | Debit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Other [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Community Banking [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Fee income	700	610
Community Banking [Member] | Overdraft fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	484	417
Community Banking [Member] | Account charges [Member]
Disaggregation of Revenue [Line Items]
Fee income	216	193
Community Banking [Member] | Brokerage advisory, commissions and other fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	518	449
Community Banking [Member] | Asset-based revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	398	343
Community Banking [Member] | Transactional revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	102	89
Community Banking [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	18	17
Community Banking [Member] | Trust and investment management [Member]
Disaggregation of Revenue [Line Items]
Fee income	194	210
Community Banking [Member] | Investment management fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	1
Community Banking [Member] | Trust fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	194	209
Community Banking [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Community Banking [Member] | Card fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	809	858
Community Banking [Member] | Credit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	134	189
Community Banking [Member] | Debit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	513	507
Community Banking [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	162	162
Wholesale Banking [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Fee income	508	483
Wholesale Banking [Member] | Overdraft fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	1	1
Wholesale Banking [Member] | Account charges [Member]
Disaggregation of Revenue [Line Items]
Fee income	507	482
Wholesale Banking [Member] | Brokerage advisory, commissions and other fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	90	78
Wholesale Banking [Member] | Asset-based revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Wholesale Banking [Member] | Transactional revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	3	16
Wholesale Banking [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	87	62
Wholesale Banking [Member] | Trust and investment management [Member]
Disaggregation of Revenue [Line Items]
Fee income	131	114
Wholesale Banking [Member] | Investment management fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Wholesale Banking [Member] | Trust fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	89	82
Wholesale Banking [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	42	32
Wholesale Banking [Member] | Card fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	83	86
Wholesale Banking [Member] | Credit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	83	86
Wholesale Banking [Member] | Debit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Wholesale Banking [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Wealth and Investment Management [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Fee income	5	4
Wealth and Investment Management [Member] | Overdraft fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Wealth and Investment Management [Member] | Account charges [Member]
Disaggregation of Revenue [Line Items]
Fee income	5	4
Wealth and Investment Management [Member] | Brokerage advisory, commissions and other fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	2,397	2,124
Wealth and Investment Management [Member] | Asset-based revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	1,805	1,580
Wealth and Investment Management [Member] | Transactional revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	432	387
Wealth and Investment Management [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	160	157
Wealth and Investment Management [Member] | Trust and investment management [Member]
Disaggregation of Revenue [Line Items]
Fee income	582	676
Wealth and Investment Management [Member] | Investment management fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	489	477
Wealth and Investment Management [Member] | Trust fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	102	168
Wealth and Investment Management [Member] | Other revenue [Member]
Disaggregation of Revenue [Line Items]
Fee income	(9)	31
Wealth and Investment Management [Member] | Card fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	1	1
Wealth and Investment Management [Member] | Credit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	1	1
Wealth and Investment Management [Member] | Debit card interchange and network revenues [Member]
Disaggregation of Revenue [Line Items]
Fee income	0	0
Wealth and Investment Management [Member] | Late fees, cash advance fees, balance transfer fees, and annual fees [Member]
Disaggregation of Revenue [Line Items]
Fee income	$ 0	$ 0

Employee Benefits, Components o

Employee Benefits, Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020
Qualified [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 3	$ 3
Interest cost	86	105
Expected return on plan assets	(148)	(142)
Amortization of net actuarial loss (gain)	36	37
Amortization of prior service credit	0	0
Settlement loss	0	0
Net periodic benefit cost	(23)	3
Non-qualified [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0
Interest cost	4	6
Expected return on plan assets	0	0
Amortization of net actuarial loss (gain)	4	2
Amortization of prior service credit	0	0
Settlement loss	3	2
Net periodic benefit cost	11	10
Other benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0
Interest cost	4	5
Expected return on plan assets	(6)	(7)
Amortization of net actuarial loss (gain)	(5)	(4)
Amortization of prior service credit	(2)	(2)
Settlement loss	0	0
Net periodic benefit cost	$ (9)	$ (8)
Cash balance plan [Member]
Components of net periodic benefit cost [Abstract]
Net periodic benefit cost			$ 0

Employee Benefits and Other Exp

Employee Benefits and Other Expenses Employee Benefits and Other Expenses, Expenses Not Otherwise Shown Separately In Financial Statements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Expenses Not Otherwise Shown Separately In Financial Statement [Abstract]
Outside professional services	$ 727	$ 678
Contract services	630	563
Operating losses	464	238
Leases	260	286
Advertising and promotion	181	237
Other	955	1,141
Total other noninterest expense	$ 3,217	$ 3,143

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
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Common Share [Abstract]
Wells Fargo net income	$ 653	$ 5,860
Less: Preferred stock dividends and other	611	353
Wells Fargo net income applicable to common stock (numerator)	$ 42	$ 5,507
Earnings per common share
Average common shares outstanding (denominator)	4,104.8	4,551.5
Per share	$ 0.01	$ 1.21
Diluted earnings per common share
Average common shares outstanding (in shares)	4,104.8	4,551.5
Diluted average common shares outstanding (denominator)	4,135.3	4,584
Per share	$ 0.01	$ 1.20
Stock option [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	0	2.5
Restricted share rights [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	30.5	30
Series K [Member]
Earnings per Common Share, Basic and Diluted [Line items]
Preferred Stock, Accretion of redemption discount	$ 272

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
	Mar. 31, 2020	Mar. 31, 2019
Series L [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Instruments	25.3	25.3

Earnings and Dividends Per Co_3

Earnings and Dividends Per Common Share Dividends Declared Per Common Shares (Details) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Dividends declared per common share (in dollars per share)	$ 0.51	$ 0.45

Other Comprehensive Income, Com

Other Comprehensive Income, Components of Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt securities:
Net unrealized gains (losses) arising during the period, before tax	$ (110)	$ 2,831
Net unrealized gains (losses) arising during the period, tax effect	22	(695)
Net unrealized gains (losses) arising during the period, net of tax	(88)	2,136
Reclassification of net (gains) losses to net income, before tax	(172)	(81)
Reclassification of net (gains) losses to net income, tax effect	32	20
Reclassification of net (gains) losses to net income, net of tax	(140)	(61)
Net change, before tax	(282)	2,750
Net change, tax effect	54	(675)
Net change, net of tax	(228)	2,075
Cash Flow Hedges:
Reclassification of net losses to net income on cash flow hedges, before tax	58	79
Net change, before tax	182	44
Net change, tax effect	(45)	(10)
Net change, net of tax	137	34
Defined benefit plans adjustments:
Net actuarial and prior service gains (losses) arising during the period, before tax	3	(4)
Net actuarial and prior service gains (losses) arising during the period, tax effect	(1)	1
Net actuarial and prior service gains (losses) arising during the period, net of tax	2	(3)
Amortization of net actuarial loss, before tax	35	35
Amortization of net actuarial loss, tax effect	(8)	(8)
Amortization of net actuarial loss, net of tax	27	27
Settlements and other, before tax	1	0
Settlements and other, tax effect	0	0
Settlements and other, net of tax	1	0
Reclassification of amounts to non interest expense, before tax	36	35
Reclassification of amounts to non interest expense, tax effect	(8)	(8)
Reclassification of amounts to non interest expense, net of tax	28	27
Net change, before tax	39	31
Net change, tax effect	(9)	(7)
Net change, net of tax	30	24
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period, before tax	(194)	42
Net unrealized gains (losses) arising during the period, tax effect	1	(2)
Net unrealized gains (losses) arising during the period, net of tax	(193)	40
Net change, before tax	(194)	42
Net change, tax effect	1	(2)
Net change, net of tax	(193)	40
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), before tax	(255)	2,867
Other comprehensive income (loss), tax effect	1	(694)
Other comprehensive income (loss), net of tax	(254)	2,173
Total Wells Fargo stockholders' equity [Member]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), net of tax	(253)	2,173
Noncontrolling Interest [Member]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), net of tax	(1)	0
Fair value hedging [Member]
Fair Value Hedges:
Change in fair value of excluded components on fair value hedges, before tax	144	(26)
Change in fair value of excluded components on fair value hedges, tax	(35)	7
Change in fair value of excluded components on fair value hedges, net of tax	109	(19)
Cash flow hedging [Member]
Cash Flow Hedges:
Net unrealized losses arising during the period on cash flow hedges, before tax	(20)	(9)
Net unrealized losses arising during the period on cash flow hedges, tax	5	2
Net unrealized losses arising during the period on cash flow hedges, net of tax	(15)	(7)
Reclassification of net losses to net income on cash flow hedges, before tax	58	79
Reclassification of net losses to net income on cash flow hedges, tax	(15)	(19)
Reclassification of net losses to net income on cash flow hedges, net of tax	43	60
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
Reclassification of net losses to net income on cash flow hedges, tax	(1)	0
Reclassification of net losses to net income on cash flow hedges, net of tax	1	1
Other noninterest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, before tax	(1)	(1)
Reclassification of net (gains) losses to net income, tax effect	0	0
Reclassification of net (gains) losses to net income, net of tax	(1)	(1)
Debt securities [Member] | Interest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, before tax	66	45
Reclassification of net (gains) losses to net income, tax effect	(16)	(11)
Reclassification of net (gains) losses to net income, net of tax	50	34
Debt securities [Member] | Net gains on debt securities [Member]
Debt securities:
Reclassification of net (gains) losses to net income, before tax	(237)	(125)
Reclassification of net (gains) losses to net income, tax effect	48	31
Reclassification of net (gains) losses to net income, net of tax	(189)	(94)
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	56	78
Reclassification of net losses to net income on cash flow hedges, tax	(14)	(19)
Reclassification of net losses to net income on cash flow hedges, net of tax	$ 42	$ 59

Other Comprehensive Income, Cum

Other Comprehensive Income, Cumulative OCI Balances (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cumulative OCI balances [Abstract]
Balance, beginning of period	$ 187,984	$ 197,066
Other comprehensive income (loss), net of tax	(254)	2,173
Balance, end of period	183,330	198,733
Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	188,975	197,055
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(1,311)	(6,336)
Net unrealized gains (losses) arising during the period	(185)	2,147
Amounts reclassified from accumulated other comprehensive income	(69)	26
Other comprehensive income (loss), net of tax	(254)	2,173
AOCI Including Portion Attributable to Noncontrolling Interest [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		(5,855)
AOCI Including Portion Attributable to Noncontrolling Interest [Member] | Accounting Standards Update 2017-08 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		481
Debt securities [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	1,552	(3,122)
Net unrealized gains (losses) arising during the period	(88)	2,136
Amounts reclassified from accumulated other comprehensive income	(140)	(61)
Other comprehensive income (loss), net of tax	(228)	2,075
Debt securities [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		(2,641)
Debt securities [Member] | Accounting Standards Update 2017-08 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		481
Fair value hedges [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(180)	(178)
Net unrealized gains (losses) arising during the period	109	(19)
Amounts reclassified from accumulated other comprehensive income	0	0
Other comprehensive income (loss), net of tax	109	(19)
Fair value hedges [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		(178)
Fair value hedges [Member] | Accounting Standards Update 2017-08 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		0
Cash flow hedges [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(298)	(507)
Net unrealized gains (losses) arising during the period	(15)	(7)
Amounts reclassified from accumulated other comprehensive income	43	60
Other comprehensive income (loss), net of tax	28	53
Cash flow hedges [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		(507)
Cash flow hedges [Member] | Accounting Standards Update 2017-08 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		0
Defined benefit plans adjustments [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(2,223)	(2,296)
Net unrealized gains (losses) arising during the period	2	(3)
Amounts reclassified from accumulated other comprehensive income	28	27
Other comprehensive income (loss), net of tax	30	24
Defined benefit plans adjustments [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		(2,296)
Defined benefit plans adjustments [Member] | Accounting Standards Update 2017-08 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		0
Foreign currency translation adjustments [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(162)	(233)
Net unrealized gains (losses) arising during the period	(193)	40
Amounts reclassified from accumulated other comprehensive income	0	0
Other comprehensive income (loss), net of tax	(193)	40
Foreign currency translation adjustments [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		(233)
Foreign currency translation adjustments [Member] | Accounting Standards Update 2017-08 [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period		0
Noncontrolling Interest [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	838	900
Other comprehensive income (loss), net of tax	(1)	0
Balance, end of period	612	901
Noncontrolling Interest [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	838	900
Cumulative other comprehensive income, noncontrolling Interests [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	(1)	0
Debt securities, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0	0
Fair value hedges, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0	0
Cash flow hedges, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0	0
Defined benefit plans adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0	0
Foreign currency translation adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	(1)	0
Total Wells Fargo stockholders' equity [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	187,146	196,166
Other comprehensive income (loss), net of tax	(253)	2,173
Balance, end of period	182,718	197,832
Total Wells Fargo stockholders' equity [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	188,137	196,155
Cumulative other comprehensive income, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(1,311)	(6,336)
Other comprehensive income (loss), net of tax	(253)	2,173
Balance, end of period	(1,564)	(3,682)
Cumulative other comprehensive income, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(1,311)	(5,855)
Debt securities, parent [Member]
Cumulative OCI balances [Abstract]
Balance, end of period	1,324	(566)
Fair value hedges, parent [Member]
Cumulative OCI balances [Abstract]
Balance, end of period	(71)	(197)
Cash flow hedges, parent [Member]
Cumulative OCI balances [Abstract]
Balance, end of period	(270)	(454)
Defined benefit plans adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, end of period	(2,193)	(2,272)
Foreign currency translation adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, end of period	$ (354)	$ (193)

Operating Segments (Details)

Operating Segments (Details) $ in Millions	Feb. 11, 2020	Mar. 31, 2020USD ($)segment	Mar. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments | segment		3
Financial Information of Operating Segment [Abstract]
Net interest income		$ 11,312	$ 12,311
Provision (reversal of provision) for credit losses		4,005	845
Noninterest income		6,405	9,298
Noninterest expense		13,048	13,916
Income before income tax expense		664	6,848
Income tax expense (benefit)		159	881
Net income before noncontrolling interests		505	5,967
Less: Net income (loss) from noncontrolling interests		(148)	107
Wells Fargo net income		653	5,860
Average loans		965,000	950,000
Average assets		1,950,700	1,883,100
Average Deposits		1,338,000	1,262,100
Approved new number of operating segments	5
Other [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		(478)	(572)
Provision (reversal of provision) for credit losses		(9)	(3)
Noninterest income		(833)	(759)
Noninterest expense		(934)	(914)
Income before income tax expense		(368)	(414)
Income tax expense (benefit)		(92)	(104)
Net income before noncontrolling interests		(276)	(310)
Less: Net income (loss) from noncontrolling interests		0	0
Wells Fargo net income		(276)	(310)
Average loans		(60,600)	(59,000)
Average assets		(61,600)	(60,000)
Average Deposits		(68,600)	(66,500)
Community Banking [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		6,787	7,248
Provision (reversal of provision) for credit losses		1,718	710
Noninterest income		2,709	4,502
Noninterest expense		7,116	7,689
Income before income tax expense		662	3,351
Income tax expense (benefit)		644	424
Net income before noncontrolling interests		18	2,927
Less: Net income (loss) from noncontrolling interests		(137)	104
Wells Fargo net income		155	2,823
Average loans		462,600	458,200
Average assets		1,039,200	1,015,400
Average Deposits		798,600	765,600
Wholesale Banking [Member]
Segment Reporting Information [Line Items]
Affordable housing and renewable energy tax credits, amount		491	427
Financial Information of Operating Segment [Abstract]
Net interest income		4,136	4,534
Provision (reversal of provision) for credit losses		2,288	134
Noninterest income		1,681	2,577
Noninterest expense		3,763	3,838
Income before income tax expense		(234)	3,139
Income tax expense (benefit)		(546)	369
Net income before noncontrolling interests		312	2,770
Less: Net income (loss) from noncontrolling interests		1	0
Wells Fargo net income		311	2,770
Average loans		484,500	476,400
Average assets		885,000	844,500
Average Deposits		456,600	409,800
Wealth and Investment Management [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		867	1,101
Provision (reversal of provision) for credit losses		8	4
Noninterest income		2,848	2,978
Noninterest expense		3,103	3,303
Income before income tax expense		604	772
Income tax expense (benefit)		153	192
Net income before noncontrolling interests		451	580
Less: Net income (loss) from noncontrolling interests		(12)	3
Wells Fargo net income		463	577
Average loans		78,500	74,400
Average assets		88,100	83,200
Average Deposits		$ 151,400	$ 153,200

Regulatory and Agency Capital_3

Regulatory and Agency Capital Requirements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Parent Company [Member]
Supplementary leverage:
Total leverage exposure	$ 2,256,314		$ 2,247,729
Supplementary leverage ratio	6.84%		7.07%
Parent Company [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 134,751		$ 138,760
Tier 1	154,277		158,949
Total	184,068		188,333
Assets:
Risk-weighted assets	1,181,271		$ 1,165,079
Adjusted average	$ 1,922,129	$ 1,913,297
Regulatory capital ratios:
Common equity tier 1 capital	11.41%		11.91%
Tier 1 capital	13.06%		13.64%
Total capital	15.58%		16.16%
Tier 1 leverage	8.03%		8.31%
Parent Company [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 134,751		$ 138,760
Tier 1	154,277		158,949
Total	192,121		196,223
Assets:
Risk-weighted assets	1,262,808		$ 1,245,853
Adjusted average	$ 1,922,129	1,913,297
Regulatory capital ratios:
Common equity tier 1 capital	10.67%		11.14%
Tier 1 capital	12.22%		12.76%
Total capital	15.21%		15.75%
Tier 1 leverage	8.03%		8.31%
Wells Fargo Bank, NA [Member]
Supplementary leverage:
Total leverage exposure	$ 2,017,471		$ 2,006,180
Supplementary leverage ratio	7.31%		7.24%
Wells Fargo Bank, NA [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 147,537		$ 145,149
Tier 1	147,537		145,149
Total	162,300		158,615
Assets:
Risk-weighted assets	1,061,736		$ 1,047,054
Adjusted average	$ 1,711,367	1,695,807
Regulatory capital ratios:
Common equity tier 1 capital	13.90%		13.86%
Tier 1 capital	13.90%		13.86%
Total capital	15.29%		15.15%
Tier 1 leverage	8.62%		8.56%
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common equity tier 1	$ 147,537		$ 145,149
Tier 1	147,537		145,149
Total	169,846		166,056
Assets:
Risk-weighted assets	1,171,371		$ 1,152,791
Adjusted average	$ 1,711,367	$ 1,695,807
Regulatory capital ratios:
Common equity tier 1 capital	12.60%		12.59%
Tier 1 capital	12.60%		12.59%
Total capital	14.50%		14.40%
Tier 1 leverage	8.62%		8.56%

Regulatory and Agency Capital_4

Regulatory and Agency Capital Requirements Minimum Required Regulatory Capital Ratios – Transition Requirements (Details)	Mar. 31, 2020	Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.02500
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	9.00%	9.00%
Tier 1 capital	10.50%	10.50%
Total capital	12.50%	12.50%
Tier 1 leverage	4.00%	4.00%
Supplementary leverage	5.00%	5.00%
Capital conservation buffer, minimum	0.02500
Banking Regulation, Global Systemically Important Bank (GSIB) Surcharge	0.02000
Leverage buffer, minimum	0.02000
Supplementary leverage ratio, minimum	0.03000
Wells Fargo Bank, NA [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	7.00%	7.00%
Tier 1 capital	8.50%	8.50%
Total capital	10.50%	10.50%
Tier 1 leverage	4.00%	4.00%
Supplementary leverage	6.00%	6.00%
Capital conservation buffer, minimum	0.02500