Wells Fargo & Company (WFC) 10-Q 28 Jul 21 2021 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 19, 2021
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	Jun. 30, 2021
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		4,106,410,513
Entity Central Index Key	0000072971
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
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 [Member]
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 O
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/1000th interest in a 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 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	5.85% Fixed-to-Floating Rate Non-Cumulative Perpetual Class A Preferred Stock, Series 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	6.625% Fixed-to-Floating Rate Non-Cumulative Perpetual Class A Preferred Stock, Series 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 X
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/1000th interest in a 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	Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series Y
Trading Symbol	WFC.PRY
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series Z
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series Z
Trading Symbol	WFC.PRZ
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series AA
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series AA
Trading Symbol	WFC.PRA
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series CC
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series CC
Trading Symbol	WFC.PRC
Security Exchange Name	NYSE
Guarantee of Medium-Term Notes, Series A, due October 30, 2028 of Wells Fargo Finance LLC [Member]
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 - USD ($) shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Interest income
Debt securities	$ 2,199	$ 2,946		$ 4,511	$ 6,418
Loans held for sale	193	237		524	446
Loans	7,095	8,460	[1]	14,296	18,543	[1]
Equity securities	132	116		269	322
Other interest income	74	54		139	829
Total interest income	9,693	11,813		19,739	26,558
Interest expense
Deposits	92	585		204	2,327
Short-term borrowings	(12)	(17)		(21)	274
Long-term debt	712	1,237		1,738	2,477
Other interest expense	101	116		210	258
Total interest expense	893	1,921		2,131	5,336
Net interest income	8,800	9,892		17,608	21,222
Noninterest income
Deposit and lending-related fees	1,704	1,465		3,320	3,262
Card fees	1,077	797		2,026	1,689
Mortgage banking	1,336	317		2,662	696
Net gains on trading and securities	2,717	1,552		3,608	452
Other	692	912	[1]	1,674	2,213	[1]
Total noninterest income	11,470	8,394		21,194	15,237
Total revenue	20,270	18,286		38,802	36,459
Provision for credit losses	(1,260)	9,534		(2,308)	13,539
Noninterest expense
Personnel	8,818	8,916		18,376	17,239
Technology, telecommunications and equipment	815	672		1,659	1,470
Occupancy	735	871		1,505	1,586
Operating losses	303	1,219		516	1,683
Professional and outside services	1,450	1,676		2,838	3,282
Advertising and promotion	132	137		222	318
Restructuring charges	(4)	0		9	0
Other	1,092	1,060		2,205	2,021
Total noninterest expense	13,341	14,551		27,330	27,599
Income (loss) before income tax expense	8,189	(5,799)		13,780	(4,679)
Income tax expense (benefit)	1,445	(2,001)	[1]	2,346	(1,648)	[1]
Net income (loss) before noncontrolling interests	6,744	(3,798)	[2]	11,434	(3,031)	[2]
Less: Net income (loss) from noncontrolling interests	704	48		758	(101)
Wells Fargo net income (loss)	6,040	(3,846)	[1]	10,676	(2,930)	[1]
Less: Preferred stock dividends and other	297	314		677	926
Wells Fargo net income (loss) applicable to common stock	$ 5,743	$ (4,160)	[1]	$ 9,999	$ (3,856)	[1]
Per share information
Earnings (loss) per common share (in dollars per share)	$ 1.39	$ (1.01)	[1]	$ 2.42	$ (0.94)	[1]
Diluted earnings (loss) per common share (in dollars per share)	$ 1.38	$ (1.01)	[1]	$ 2.40	$ (0.94)	[1]
Average common shares outstanding (in shares)	4,124.6	4,105.5	[1]	4,132.9	4,105.2	[1]
Diluted average common shares outstanding (in shares)	4,156.1	4,105.5	[1]	4,164.6	4,105.2	[1]
Investment advisory and other asset-based fees [Member]
Noninterest income
Fee income	$ 2,794	$ 2,254	[3]	$ 5,550	$ 4,760	[3]
Commissions and brokerage service fees [Member]
Noninterest income
Fee income	580	550	[3]	1,216	1,227	[3]
Investment banking fees [Member]
Noninterest income
Fee income	$ 570	$ 547		$ 1,138	$ 938
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[3]	In first quarter 2021, trust and investment management fees and asset-based brokerage fees were combined into a single line item for investment advisory and other asset-based fees, and brokerage commissions and other brokerage services fees were combined into a single line item for commissions and brokerage services fees. Prior period balances have been revised to conform with the current period presentation.

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Net income (loss) before noncontrolling interests	$ 6,744	$ (3,798)	[1]	$ 11,434	$ (3,031)	[1]
Other comprehensive income (loss), net of tax:
Net change in debt securities	304	1,143		(1,221)	915
Net change in derivatives and hedging activities	27	3		63	140
Defined benefit plans adjustments	334	(431)		369	(401)
Net change in foreign currency translation adjustments	22	51		33	(142)
Other comprehensive income (loss), net of tax	687	766		(756)	512
Less: Net income (loss) from noncontrolling interests	704	48		758	(101)
Comprehensive income, net of tax	7,431	(3,032)	[1]	10,678	(2,519)	[1]
Total Wells Fargo stockholders' equity [Member]
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss), net of tax	686	766		(758)	513
Comprehensive income, net of tax	6,726	(3,080)	[1]	9,918	(2,417)	[1]
Noncontrolling interests [Member]
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss), net of tax	$ 1	$ 0		$ 2	$ (1)
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions		Jun. 30, 2021	Dec. 31, 2020
Assets
Cash and due from banks		$ 25,304	$ 28,236
Interest-earning deposits with banks		248,869	236,376
Total cash, cash equivalents, and restricted cash		274,173	264,612
Federal funds sold and securities purchased under resale agreements		70,149	65,672
Trading, at fair value		82,727	75,095
Available-for-sale, at fair value		189,897	220,392
Held-to-maturity, at amortized cost, net of allowance for credit losses		260,941	205,720
Loans held for sale		25,594	36,384
Loans		852,300	887,637
Allowance for loan losses		(15,148)	(18,516)
Net loans		837,152	869,121
Mortgage servicing rights		8,009	7,437
Premises and equipment, net		8,745	8,895
Goodwill		26,194	26,392
Derivative assets		25,415	25,846
Equity securities		64,547	60,008	[1]
Other assets		72,453	87,337
Total assets	[2]	1,945,996	1,952,911
Liabilities
Noninterest-bearing deposits		504,108	467,068
Interest-bearing deposits		936,364	937,313
Total deposits		1,440,472	1,404,381
Short-term borrowings		45,635	58,999
Derivative liabilities		14,551	16,509
Accrued expenses and other liabilities		72,555	74,360	[1]
Long-term Debt		179,656	212,950
Total liabilities	[3]	1,752,869	1,767,199
Wells Fargo stockholders’ equity:
Preferred stock		20,820	21,136
Common stock		9,136	9,136
Additional paid-in capital		60,018	60,197
Retained earnings		171,765	162,683	[1]
Cumulative other comprehensive income (loss)		(564)	194
Treasury stock		(69,038)	(67,791)
Unearned ESOP shares		875	875
Total Wells Fargo stockholders’ equity		191,262	184,680
Noncontrolling interests		1,865	1,032
Total equity		193,127	185,712	[4]
Total liabilities and equity		$ 1,945,996	$ 1,952,911
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	Our consolidated assets at June 30, 2021, and December 31, 2020, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $518 million and $967 million; Loans, $4.1 billion and $10.9 billion; All other assets, $334 million and $310 million; and Total assets, $4.9 billion and $12.1 billion, respectively.
[3]	Our consolidated liabilities at June 30, 2021, and December 31, 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $178 million and $203 million; All other liabilities, $587 million and $900 million; and Total liabilities, $765 million and $1.1 billion, respectively.
[4]	We adopted Accounting Standards Update (ASU) 2016-13 – Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL) effective January 1, 2020. For additional information, see Note 1 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2020. In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions		Jun. 30, 2021	Dec. 31, 2020
Assets [Abstract]
Available-for-sale, at amortized cost, net of allowance for credit losses		$ 186,309	$ 215,533
Held-to-maturity, at fair value		264,087	212,307
Mortgage servicing rights, carried at fair value		6,717	6,125
Equity securities, carried at fair value		35,331	34,009
Loans		852,300	887,637
Assets	[1]	1,945,996	1,952,911
Liabilities
Accrued expenses and other liabilities, carried at fair value		22,043	22,441
Long-term Debt		179,656	212,950
Total liabilities	[2]	$ 1,752,869	$ 1,767,199
Wells Fargo stockholders’ equity:
Common stock, par value (in dollars per share)		$ 1.6666	$ 1.6666
Common stock, shares authorized		9,000,000,000	9,000,000,000
Common stock, shares issued		5,481,811,474	5,481,811,474
Treasury stock, shares		1,373,813,200	1,337,799,931
Fair value option election [Member]
Assets [Abstract]
Loans held for sale, carried at fair value		$ 18,894	$ 18,806
Carrying value [Member]
Liabilities
Long-term Debt		179,625	212,922
VIEs that we consolidate [Member]
Assets [Abstract]
Assets		8,119	13,983
VIEs that we consolidate [Member] | Carrying value [Member]
Assets [Abstract]
Debt securities		518	967
Loans		4,075	10,869
All other assets		334	310
Assets		4,927	12,146
Liabilities
Long-term Debt		178	203
All other liabilities		587	1,100
VIEs that we consolidate [Member] | Carrying value [Member] | Nonrecourse [Member]
Liabilities
Long-term Debt		178	203
All other liabilities		587	900
Total liabilities		$ 765	$ 1,100
[1]	Our consolidated assets at June 30, 2021, and December 31, 2020, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $518 million and $967 million; Loans, $4.1 billion and $10.9 billion; All other assets, $334 million and $310 million; and Total assets, $4.9 billion and $12.1 billion, respectively.
[2]	Our consolidated liabilities at June 30, 2021, and December 31, 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $178 million and $203 million; All other liabilities, $587 million and $900 million; and Total liabilities, $765 million and $1.1 billion, respectively.

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) shares in Millions, $ in Millions		Total		Previously reported [Member]	Restatement adjustment [Member]	Total Wells Fargo stockholders' equity [Member]	Preferred stock [Member]	Preferred stock [Member]Previously reported [Member]	Common stock [Member]	Common stock [Member]Previously reported [Member]	Additional paid-in capital [Member]	Additional paid-in capital [Member]Previously reported [Member]	Retained earnings [Member]		Retained earnings [Member]Previously reported [Member]	Retained earnings [Member]Restatement adjustment [Member]	Cumulative other comprehensive income (loss) [Member]	Cumulative other comprehensive income (loss) [Member]Previously reported [Member]	Treasury stock [Member]	Treasury stock [Member]Previously reported [Member]	Unearned ESOP shares [Member]	Unearned ESOP shares [Member]Previously reported [Member]	Noncontrolling interests [Member]	Noncontrolling interests [Member]Previously reported [Member]
Balance, beginning of period at Dec. 31, 2019		$ 188,692	[1]	$ 187,984			$ 21,549	$ 21,549	$ 9,136	$ 9,136	$ 61,049	$ 61,049	$ 167,405	[1]	$ 166,697		$ (1,311)	$ (1,311)	$ (68,831)	$ (68,831)	$ (1,143)	$ (1,143)	$ 838	$ 838
Balance, beginning of period (Accounting Standards Update 2016-13 [Member], Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]) at Dec. 31, 2019	[1]				$ 708											$ 708
Beginning balance, shares at Dec. 31, 2019							7.5	7.5	4,134.4	4,134.4
Stockholders' Equity Period Increase (Decrease)
Net income		(3,031)	[1]										(2,930)	[1]									(101)
Other comprehensive income (loss), net of tax		512				$ 513											513						(1)
Noncontrolling interests		(1)																					(1)
Common stock issued		2,044									207		(857)						2,694
Common stock, shares issued									50.9
Common stock repurchased		(3,409)																	(3,409)
Common stock repurchased, shares									(75.4)
Preferred stock redeemed	[2]	(2,470)					$ (2,215)				17		(272)
Preferred stock redeemed, shares	[2]						(1.9)
Preferred stock released by ESOP		249									(19)										268
Preferred stock converted to common shares		0					$ (249)				(243)								492
Preferred stock converted to common shares, shares							(0.2)		9.7
Preferred stock issued		1,968					$ 2,013				(45)
Preferred stock, shares issued							0.1
Common stock dividends		(4,188)									38		(4,226)
Preferred stock dividends		(654)											(654)
Stock incentive compensation expense		301									301
Net change in deferred compensation and related plans		(1,378)									(1,382)								4
Net change		(10,057)	[1]				$ (451)		$ 0		(1,126)		(8,939)	[1]			513		(219)		268		(103)
Net change, shares							(2)		(14.8)
Balance, end of period at Jun. 30, 2020		178,635	[1],[3]				$ 21,098		$ 9,136		59,923		158,466	[1],[3]			(798)		(69,050)		(875)		735
Ending balance, shares at Jun. 30, 2020							5.5		4,119.6
Balance, beginning of period at Mar. 31, 2020		183,310	[3]				$ 21,347		$ 9,136		59,849		165,288	[3]			(1,564)		(70,215)		(1,143)		612
Beginning balance, shares at Mar. 31, 2020							5.7		4,096.4
Stockholders' Equity Period Increase (Decrease)
Net income		(3,798)	[3]										(3,846)	[3]									48
Other comprehensive income (loss), net of tax		766				766											766						0
Noncontrolling interests		75																					75
Common stock issued		367									224		(549)						692
Common stock, shares issued									13.5
Common stock repurchased		(2)																	(2)
Common stock repurchased, shares									0
Preferred stock redeemed		0					$ 0				0		0
Preferred stock redeemed, shares							0
Preferred stock released by ESOP		249									(19)										268
Preferred stock converted to common shares		0					$ (249)				(243)								492
Preferred stock converted to common shares, shares							(0.2)		9.7
Common stock dividends		(2,093)									20		(2,113)
Preferred stock dividends		(314)											(314)
Stock incentive compensation expense		120									120
Net change in deferred compensation and related plans		(45)									(28)								(17)
Net change		(4,675)	[3]				$ (249)		$ 0		74		(6,822)	[3]			766		1,165		268		123
Net change, shares							(0.2)		23.2
Balance, end of period at Jun. 30, 2020		178,635	[1],[3]				$ 21,098		$ 9,136		59,923		158,466	[1],[3]			(798)		(69,050)		(875)		735
Ending balance, shares at Jun. 30, 2020							5.5		4,119.6
Balance, beginning of period at Dec. 31, 2020		185,712	[1]				$ 21,136		$ 9,136		60,197		162,683	[1]			194		(67,791)		(875)		1,032
Beginning balance, shares at Dec. 31, 2020							5.5		4,144
Stockholders' Equity Period Increase (Decrease)
Net income		11,434											10,676										758
Other comprehensive income (loss), net of tax		(756)				(758)											(758)						2
Noncontrolling interests		73																					73
Common stock issued		819									0		(81)						900
Common stock, shares issued									16.5
Common stock repurchased		(2,161)																	(2,161)
Common stock repurchased, shares									(52.5)
Preferred stock redeemed	[4]	(4,876)					$ (4,876)				48		(48)
Preferred stock redeemed, shares	[4]						(0.1)
Preferred stock released by ESOP		0									0										0
Preferred stock converted to common shares		0					$ 0				0								0
Preferred stock converted to common shares, shares							0		0
Preferred stock issued		4,529					$ 4,560				(31)
Preferred stock, shares issued							0.2
Common stock dividends		(826)									10		(836)
Preferred stock dividends		(629)											(629)
Stock incentive compensation expense		724									724
Net change in deferred compensation and related plans		(916)									(930)								14
Net change		7,415					$ (316)		$ 0		(179)		9,082				(758)		(1,247)		0		833
Net change, shares							0.1		(36)
Balance, end of period at Jun. 30, 2021		193,127					$ 20,820		$ 9,136		60,018		171,765				(564)		(69,038)		(875)		1,865
Ending balance, shares at Jun. 30, 2021							5.6		4,108
Balance, beginning of period at Mar. 31, 2021		188,034	[3]				$ 21,170		$ 9,136		59,854		166,458	[3]			(1,250)		(67,589)		(875)		1,130
Beginning balance, shares at Mar. 31, 2021							5.6		4,141.1
Stockholders' Equity Period Increase (Decrease)
Net income		6,744											6,040										704
Other comprehensive income (loss), net of tax		687				$ 686											686						1
Noncontrolling interests		30																					30
Common stock issued		95									0		(20)						115
Common stock, shares issued									2.2
Common stock repurchased		(1,565)																	(1,565)
Common stock repurchased, shares									(35.3)
Preferred stock redeemed	[5]	(350)					$ (350)				4		(4)
Preferred stock redeemed, shares	[5]						0
Preferred stock released by ESOP		0									0										0
Preferred stock converted to common shares		0					$ 0				0								0
Preferred stock converted to common shares, shares							0		0
Common stock dividends		(412)									4		(416)
Preferred stock dividends		(293)											(293)
Stock incentive compensation expense		226									226
Net change in deferred compensation and related plans		(69)									(70)								1
Net change		5,093					$ (350)		$ 0		164		5,307				686		(1,449)		0		735
Net change, shares							0		(33.1)
Balance, end of period at Jun. 30, 2021		$ 193,127					$ 20,820		$ 9,136		$ 60,018		$ 171,765				$ (564)		$ (69,038)		$ (875)		$ 1,865
Ending balance, shares at Jun. 30, 2021							5.6		4,108
[1]	We adopted Accounting Standards Update (ASU) 2016-13 – Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL) effective January 1, 2020. For additional information, see Note 1 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2020. In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	Represents the impact of the redemption of the remaining Preferred Stock, Series K, and partial redemption of Preferred Stock, Series T, in first quarter 2020.
[3]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[4]	Represents the impact of the redemption of Preferred Stock, Series I, Series P and Series W, in first quarter 2021, and Preferred Stock, Series N, in second quarter 2021. For additional information, see Note 16 (Preferred Stock).
[5]	Represents the impact of the redemption of the remaining Preferred Stock, Series N, in second quarter 2021. For additional information, see Note 16 (Preferred Stock).

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss) before noncontrolling interests	$ 11,434	$ (3,031)	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(2,308)	13,539
Changes in fair value of MSRs and LHFS carried at fair value	(895)	4,481
Depreciation, amortization and accretion	4,173	3,858	[2]
Stock-based compensation	1,475	953
Deferred income tax benefit	(1,495)	(118)	[2]
Other net (gains) losses	(7,661)	7,150	[3]
Originations and purchases of loans held for sale	(87,673)	(83,540)	[3]
Proceeds from sales of and paydowns on loans originally classified as held for sale	55,502	69,195	[3]
Net change in:
Debt and equity securities, held for trading	7,531	36,459
Derivative assets and liabilities	(1,299)	(6,825)
Other assets	11,256	(5,910)
Other accrued expenses and liabilities	(1,572)	(2,819)	[2]
Net cash provided by operating activities	(11,532)	33,392
Net change in:
Federal funds sold and securities purchased under resale agreements	(4,477)	22,851
Available-for-sale debt securities:
Proceeds from sales	13,675	29,524
Prepayments and maturities	45,238	35,340
Purchases	(71,997)	(28,310)
Held-to-maturity debt securities:
Paydowns and maturities	45,833	11,566
Purchases	(43,192)	(25,376)
Equity securities, not held for trading:
Proceeds from sales and capital returns	2,131	5,584
Purchases	(3,033)	(5,587)
Loans:
Loans originated by banking subsidiaries, net of principal collected	21,926	8,871
Proceeds from sales of loans originally classified as held for investment	22,174	5,325
Purchases of loans	(186)	(775)
Principal collected on nonbank entities’ loans	7,007	5,505
Loans originated by nonbank entities	(5,723)	(5,856)
Proceeds from sales of foreclosed assets and short sales	372	753
Other, net	1,056	(31)
Net cash provided by investing activities	30,804	59,384
Net change in:
Deposits	36,575	88,085
Short-term borrowings	(13,364)	(44,027)
Long-term debt:
Proceeds from issuance	1,125	37,664
Repayment	(29,810)	(44,574)
Preferred stock:
Proceeds from issuance	4,529	1,968
Redeemed	(4,875)	(2,470)
Cash dividends paid	(629)	(654)
Common stock:
Proceeds from issuance	114	454
Stock tendered for payment of withholding taxes	(250)	(320)
Repurchased	(2,161)	(3,409)
Cash dividends paid	(795)	(4,055)
Net change in noncontrolling interests	(13)	(31)
Other, net	(157)	(154)
Net cash provided (used) by financing activities	(9,711)	28,477
Net change in cash, cash equivalents, and restricted cash	9,561	121,253
Cash, cash equivalents, and restricted cash at beginning of period	264,612	141,250
Cash, cash equivalents, and restricted cash at end of period	274,173	262,503
Supplemental cash flow disclosures:
Cash paid for interest	2,345	5,545
Cash paid for income taxes, net	$ 3,052	$ 2,070	[3]
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[3]	Prior period balances have been revised to conform with the current period presentation.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2021
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, investment and mortgage products and services, as well as consumer and commercial finance, through banking locations and offices, the internet and other distribution channels to individuals, businesses and institutions in all 50 states, the District of Columbia, and in countries outside the U.S. 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, 2020 (2020 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 4 (Loans and Related Allowance for Credit Losses)); • valuations of residential mortgage servicing rights (MSRs) (Note 8 (Securitizations and Variable Interest Entities) and Note 9 (Mortgage Banking Activities)); • valuations of financial instruments (Note 15 (Fair Values of Assets and Liabilities)); • liabilities for contingent litigation losses (Note 13 (Legal Actions)); • income taxes; and • goodwill impairment (Note 10 (Intangible Assets)). 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 2020 Form 10-K. Change in Accounting Policies In second quarter 2021, we elected to change our accounting method for low-income housing tax credit (LIHTC) investments from the equity method of accounting to the proportional amortization method. Under the proportional amortization method, the investments are carried at amortized cost and amortized in proportion to the tax credits received. The amortization of the investments and the related tax impacts are recognized in income tax expense. Previously, we recognized the amortization of the investments in other noninterest income and the related tax impacts were recognized in income tax expense. We determined that the proportional amortization method is preferable because it better aligns the financial statement presentation with the economic impact of these investments, which generate tax credits over the lives of the investments. Adoption of the proportional amortization method was applied retrospectively, to the earliest period presented, which resulted in a cumulative-effect adjustment to reduce retained earnings by $283 million as of January 1, 2020. In second quarter 2021, we also elected to change the presentation of investment tax credits related to solar energy investments, which are accounted for under the deferral method. We reclassified the investment tax credits on our consolidated balance sheet from accrued expenses and other liabilities to a reduction of the carrying value of the investment balances. We also reclassified the investment tax credits, which are recognized over time, from income tax expense to interest income for solar energy leases or noninterest income for solar energy equity investments. We determined that this presentation is preferable because it better reflects the financial statement presentation of the investment tax credits as an integral component of the investments. The change in accounting policy was adopted retrospectively to January 1, 2020. Table 1.1 presents the impact of the accounting policy changes for LIHTC investments and solar energy investments to our consolidated statement of income and consolidated balance sheet. There was no material impact to the consolidated statement of cash flows. Table 1.1: Impact of the Accounting Policy Changes for LIHTC Investments and Solar Energy Investments Quarter ended June 30, 2020 Six months ended June 30, 2020 Effect of accounting policy changes ($) Effect of accounting policy changes ($) ($ in millions, except per share amounts) As reported LIHTC Solar As revised As reported LIHTC Solar As revised Selected Income Statement Data Interest income – loans $ 8,448 — 12 8,460 18,513 — 30 18,543 Noninterest income 7,956 370 68 8,394 14,361 739 137 15,237 Income tax expense (benefit) (1) (3,917) 1,434 482 (2,001) (3,758) 1,584 526 (1,648) Net income (loss) (2,379) (1,064) (403) (3,846) (1,726) (845) (359) (2,930) Earnings (loss) per common share (0.66) (0.26) (0.09) (1.01) (0.65) (0.21) (0.08) (0.94) Diluted earnings (loss) per common share (0.66) (0.26) (0.09) (1.01) (0.65) (0.21) (0.08) (0.94) At December 31, 2020 Effect of accounting policy changes ($) As reported LIHTC Solar As revised Selected Balance Sheet Data Equity securities $ 62,260 (275) (1,977) 60,008 Accrued expenses and other liabilities 76,404 (62) (1,982) 74,360 Retained earnings 162,890 (207) — 162,683 (1) The quarterly income tax expense (benefit) varies based on the income (loss) before income tax expense (benefit) and the estimated annual effective income tax rate applied to each quarter. Accounting Standards Adopted in 2021 In 2021, we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2021-01 – Reference Rate Reform (Topic 848): Scope • ASU 2020-08 – Codification Improvements to Subtopic 310-20, Receivables – Nonrefundable Fees and Other Costs • ASU 2020-01 – Investments – Equity Securities (Topic 321), Investments – Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815): Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Financial Accounting Standards Board (FASB) Emerging Issues Task Force) • ASU 2019-12 – Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes ASU 2021-01 clarifies the scope of Topic 848 to include derivatives affected by changes in interest rates for margining, discounting, or contract price alignment as part of the market-wide transition to new reference rates (commonly referred to as the “discounting transition”), even if they do not reference the London Interbank Offered Rate or another rate that is expected to be discontinued as a result of reference rate reform. The Update also clarifies other aspects of the relief provided in Accounting Standards Codification (ASC) 848. We adopted this Update in first quarter 2021 on a prospective basis, and the guidance will be followed until the Update terminates on December 31, 2022. The Update did not have a material impact on our consolidated financial statements. ASU 2020-08 clarifies the accounting for purchased callable debt securities carried at a premium and was issued to correct an unintended application of ASU 2017-08 – Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities , which requires amortization of such premiums to the earliest call date, but was not clear for the method to be used for instruments with multiple call dates. The Update now specifies that such premiums are amortized to the next call date and requires reassessment throughout the life of the instruments with multiple call dates. We adopted this Update in first quarter 2021. The Update did not have a material impact on our consolidated financial statements. ASU 2020-01 clarifies the accounting for equity securities upon transition between the measurement alternative and equity method. The Update also clarifies for forward contracts and options to purchase equity securities an entity need not consider whether upon settlement of the forward contract or option if the equity securities would be accounted for by the equity method or the fair value option. We adopted this Update in first quarter 2021. The Update did not have a material impact on our consolidated financial statements. ASU 2019-12 provides narrow scope simplifications and improvements to the general principles in ASC Topic 740 – Income Taxes related to intraperiod tax allocation, basis differences when there are changes in ownership of foreign investments and interim periods income tax accounting for year to date losses that exceed anticipated annual losses. We adopted this Update in first quarter 2021. The Update did not have a material impact on our consolidated financial statements. Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.2. Table 1.2: Supplemental Cash Flow Information Six months ended June 30, (in millions) 2021 2020 Held-to-maturity debt securities purchased from securitization of LHFS (1) 16,462 664 Transfers from loans to LHFS (2) 11,551 12,753 Transfers from available-for-sale debt securities to held-to-maturity debt securities 41,298 — (1) For the six months ended June 30, 2021, predominantly represents agency mortgage-backed securities purchased upon settlement of the sale and securitization of our conforming residential mortgage loans. See Note 8 (Securitizations and Variable Interest Entities) for additional information. (2) Prior periods have been revised to conform to the current period presentation. Subsequent Events

Trading Activities

Trading Activities	6 Months Ended
	Jun. 30, 2021
Trading Activities [Abstract]
Trading Activities	Note 2: Trading Activities Table 2.1 presents a summary of our trading assets and liabilities measured at fair value through earnings. Table 2.1: Trading Assets and Liabilities (in millions) Jun 30, Dec 31, Trading assets: Debt securities $ 82,727 75,095 Equity securities 23,701 23,032 Loans held for sale 2,269 1,015 Gross trading derivative assets 54,965 58,767 Netting (1) (31,052) (34,301) Total trading derivative assets 23,913 24,466 Total trading assets 132,610 123,608 Trading liabilities: Short sale 22,043 22,441 Gross trading derivative liabilities 45,441 53,285 Netting (1) (33,614) (39,444) Total trading derivative liabilities 11,827 13,841 Total trading liabilities $ 33,870 36,282 (1) Represents balance sheet netting for trading derivative asset and liability balances, and trading portfolio level counterparty valuation adjustments. Table 2.2 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 2.2: Net Interest Income and Net Gains (Losses) on Trading Activities Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Interest income: Debt securities $ 496 $ 659 $ 1,025 1,425 Equity securities 93 68 196 205 Loans held for sale 3 6 15 18 Total interest income 592 733 1,236 1,648 Less: Interest expense 105 116 215 257 Net interest income 487 617 1,021 1,391 Net gains (losses) from trading activities (1): Debt securities 769 329 (1,337) 2,684 Equity securities 856 2,329 2,009 (2,072) Loans held for sale 15 24 39 12 Derivatives (2) (1,619) (1,875) (342) 247 Total net gains from trading activities 21 807 369 871 Total trading-related net interest and noninterest income $ 508 $ 1,424 $ 1,390 2,262 (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	6 Months Ended
	Jun. 30, 2021
AFS and HTM Debt Securities [Abstract]
AFS and HTM Debt Securities	Note 3: Available-for-Sale and Held-to-Maturity Debt Securities Table 3.1 provides the amortized cost, net of the allowance for credit losses (ACL) for debt securities, and fair value by major categories of available-for-sale (AFS) debt securities, which are carried at fair value, and held-to-maturity (HTM) debt securities, which are carried at amortized cost, net of the ACL. The net unrealized gains (losses) for AFS debt securities are reported as a component of cumulative other comprehensive income (OCI), net of the ACL and applicable income taxes. Information on debt securities held for trading is included in Note 2 (Trading Activities). Outstanding balances exclude accrued interest receivable on AFS and HTM debt securities, which are included in other assets. See Note 7 (Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. The interest income reversed in the second quarter and first half of both 2021 and 2020 was insignificant. Table 3.1: Available-for-Sale and Held-to-Maturity Debt Securities Outstanding (in millions) Amortized Gross Gross Fair value June 30, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 35,741 195 (31) 35,905 Non-U.S. government securities 11,201 — — 11,201 Securities of U.S. states and political subdivisions (2) 19,121 410 (32) 19,499 Federal agency mortgage-backed securities 94,186 2,679 (331) 96,534 Non-agency mortgage-backed securities (3) 4,349 51 (22) 4,378 Collateralized loan obligations 12,406 8 (7) 12,407 Other debt securities 9,305 699 (31) 9,973 Total available-for-sale debt securities 186,309 4,042 (454) 189,897 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 27,576 862 (409) 28,029 Securities of U.S. states and political subdivisions 28,243 931 (36) 29,138 Federal agency mortgage-backed securities 182,891 2,908 (1,349) 184,450 Non-agency mortgage-backed securities 948 46 (11) 983 Collateralized loan obligations 21,283 205 (1) 21,487 Total held-to-maturity debt securities 260,941 4,952 (1,806) 264,087 Total (4) $ 447,250 8,994 (2,260) 453,984 December 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 21,954 205 — 22,159 Non-U.S. government securities 16,816 — (3) 16,813 Securities of U.S. states and political subdivisions (2) 19,263 224 (81) 19,406 Federal agency mortgage-backed securities 134,838 4,260 (28) 139,070 Non-agency mortgage-backed securities (3) 3,745 30 (46) 3,729 Collateralized loan obligations 9,058 4 (44) 9,018 Other debt securities 9,859 399 (61) 10,197 Total available-for-sale debt securities 215,533 5,122 (263) 220,392 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 47,295 1,472 (170) 48,597 Securities of U.S. states and political subdivisions 25,860 938 (5) 26,793 Federal agency mortgage-backed securities 115,437 4,182 (21) 119,598 Non-agency mortgage-backed securities 890 51 (8) 933 Collateralized loan obligations 16,238 148 — 16,386 Total held-to-maturity debt securities 205,720 6,791 (204) 212,307 Total (4) $ 421,253 11,913 (467) 432,699 (1) Represents amortized cost of the securities, net of the ACL of $33 million and $28 million related to AFS debt securities and $77 million and $41 million related to HTM debt securities at June 30, 2021, and December 31, 2020, respectively. (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 the ACL and fair value of these types of securities, was $5.2 billion at June 30, 2021, and $5.0 billion at December 31, 2020. (3) Predominantly consists of commercial mortgage-backed securities at both June 30, 2021, and December 31, 2020. (4) We held AFS and HTM 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 $119.8 billion and $89.9 billion and a fair value of $121.5 billion and $91.3 billion at June 30, 2021, and an amortized cost of $99.8 billion and $88.7 billion and a fair value of $103.2 billion and $91.5 billion at December 31, 2020, respectively. Table 3.2 details the breakout of purchases of and transfers to HTM debt securities by major category of security. Table 3.2: Held-to-Maturity Debt Securities Purchases and Transfers Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Purchases of held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies $ — — $ — 3,016 Securities of U.S. states and political subdivisions 1,173 15 3,083 881 Federal agency mortgage-backed securities 24,855 6,958 49,722 22,821 Non-agency mortgage-backed securities 55 12 84 74 Collateralized loan obligations 3,385 — 7,338 — Total purchases of held-to-maturity debt securities 29,468 6,985 60,227 26,792 Transfers from available-for-sale debt securities to held-to-maturity debt securities: Federal agency mortgage-backed securities 24,681 — 41,298 — Total transfers from available-for-sale debt securities to held-to-maturity debt securities $ 24,681 — $ 41,298 — (1) Inclusive of securities purchased but not yet settled and noncash purchases from securitization of loans held for sale (LHFS). Table 3.3 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 AFS and HTM debt securities (pre-tax) . Table 3.3: Income Statement Impacts for Available-for-Sale and Held-to-Maturity Debt Securities Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Interest income (1): Available-for-sale $ 655 1,349 $ 1,466 3,075 Held-to-maturity 1,048 938 2,020 1,918 Total interest income 1,703 2,287 3,486 4,993 Provision for credit losses: Available-for-sale (10) (40) 12 128 Held-to-maturity (11) 9 36 13 Total provision for credit losses (21) (31) 48 141 Realized gains and losses (2): Gross realized gains 1 248 152 504 Gross realized losses (1) (36) (1) (40) Impairment write-downs — — — (15) Net realized gains $ — $ 212 $ 151 449 (1) Excludes interest income from trading debt securities, which is disclosed in Note 2 (Trading Activities). (2) Realized gains and losses relate to AFS debt securities. There were no realized gains or losses from HTM debt securities in all periods presented. 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 ACL for debt securities. 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 (NRSROs). Debt securities rated investment grade, that is those with ratings similar to BBB-/Baa3 or above, as defined by NRSROs, 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 NRSROs, 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. Substantially all of our debt securities were rated by NRSROs at June 30, 2021, and December 31, 2020. Table 3.4 shows the percentage of fair value of AFS debt securities and amortized cost of HTM debt securities determined to be rated investment grade, inclusive of securities rated based on internal credit grades. Table 3.4: Investment Grade Debt Securities Available-for-Sale Held-to-Maturity ($ in millions) Fair value % investment grade Amortized cost % investment grade June 30, 2021 Total portfolio (1) $ 189,897 99 % 261,018 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (2) $ 132,439 100 % 210,467 100 % Securities of U.S. states and political subdivisions 19,499 99 28,258 100 Collateralized loan obligations (3) 12,407 100 21,329 100 All other debt securities (4) 25,552 91 964 4 December 31, 2020 Total portfolio (1) $ 220,392 99 % 205,761 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (2) $ 161,229 100 % 162,732 100 % Securities of U.S. states and political subdivisions 19,406 99 25,870 100 Collateralized loan obligations (3) 9,018 100 16,255 100 All other debt securities (4) 30,739 93 904 6 (1) 94% and 92% were rated AA- and above at June 30, 2021, and December 31, 2020, respectively. (2) Includes federal agency mortgage-backed securities. (3) 99% and 98% were rated AA- and above at June 30, 2021, and December 31, 2020, respectively. (4) Includes non-U.S. government, non-agency mortgage-backed, 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. Debt securities that are past due and still accruing were insignificant at both June 30, 2021, and December 31, 2020. The carrying value of debt securities in nonaccrual status was insignificant at both June 30, 2021, and December 31, 2020. Charge-offs on debt securities were insignificant in the second quarter and first half of both 2021 and 2020. Purchased debt securities with credit deterioration (PCD) are not considered to be in nonaccrual status, as payments from issuers of these securities remain current. PCD securities were insignificant in the second quarter and first half of both 2021 and 2020. Unrealized Losses of Available-for-Sale Debt Securities Table 3.5 shows the gross unrealized losses and fair value of AFS 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 amortized cost basis, net of allowance for credit losses. Table 3.5: 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 June 30, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (31) 11,924 — — (31) 11,924 Non-U.S. government securities — — — — — — Securities of U.S. states and political subdivisions (21) 1,413 (11) 717 (32) 2,130 Federal agency mortgage-backed securities (285) 18,152 (46) 2,924 (331) 21,076 Non-agency mortgage-backed securities (3) 330 (19) 771 (22) 1,101 Collateralized loan obligations (2) 1,312 (5) 1,698 (7) 3,010 Other debt securities (15) 1,196 (16) 807 (31) 2,003 Total available-for-sale debt securities $ (357) 34,327 (97) 6,917 (454) 41,244 December 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ — — — — — — Non-U.S. government securities (3) 16,812 — — (3) 16,812 Securities of U.S. states and political subdivisions (51) 3,681 (30) 1,101 (81) 4,782 Federal agency mortgage-backed securities (27) 11,310 (1) 316 (28) 11,626 Non-agency mortgage-backed securities (28) 1,366 (18) 534 (46) 1,900 Collateralized loan obligations (27) 5,082 (17) 1,798 (44) 6,880 Other debt securities (16) 647 (45) 1,604 (61) 2,251 Total available-for-sale debt securities $ (152) 38,898 (111) 5,353 (263) 44,251 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. Credit impairment is recorded as an ACL for debt securities. 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) in our 2020 Form 10-K. Contractual Maturities Table 3.6 and Table 3.7 show the remaining contractual maturities, amortized cost, net of the ACL, fair value and weighted average effective yields of AFS and HTM debt securities, respectively. The remaining contractual principal maturities for mortgage-backed securities (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 3.6: Contractual Maturities – Available-for-Sale Debt Securities By remaining contractual maturity ($ in millions) Total Within After After After June 30, 2021 Available-for-sale debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 35,741 5 17,965 15,777 1,994 Fair value 35,905 5 17,978 15,837 2,085 Weighted average yield 0.75 % 2.00 0.33 1.13 1.44 Non-U.S. government securities Amortized cost, net $ 11,201 11,176 25 — — Fair value 11,201 11,176 25 — — Weighted average yield (0.11 %) (0.11) 0.42 — — Securities of U.S. states and political subdivisions Amortized cost, net $ 19,121 1,546 2,225 5,244 10,106 Fair value 19,499 1,549 2,270 5,253 10,427 Weighted average yield 2.07 % 1.46 1.58 1.41 2.62 Federal agency mortgage-backed securities Amortized cost, net $ 94,186 8 171 3,359 90,648 Fair value 96,534 8 181 3,484 92,861 Weighted average yield 2.72 % 2.35 3.30 2.30 2.74 Non-agency mortgage-backed securities Amortized cost, net $ 4,349 — — 151 4,198 Fair value 4,378 — — 150 4,228 Weighted average yield 2.00 % — — 2.27 1.99 Collateralized loan obligations Amortized cost, net $ 12,406 — 90 7,306 5,010 Fair value 12,407 — 90 7,304 5,013 Weighted average yield 1.42 % — 2.21 1.44 1.39 Other debt securities Amortized cost, net $ 9,305 160 2,791 2,865 3,489 Fair value 9,973 160 3,152 2,910 3,751 Weighted average yield 3.17 % 2.97 4.23 3.31 2.22 Total available-for-sale debt securities Amortized cost, net $ 186,309 12,895 23,267 34,702 115,445 Fair value $ 189,897 12,898 23,696 34,938 118,365 Weighted average yield 2.03 % 0.22 0.95 1.54 2.60 (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 3.7: Contractual Maturities – Held-to-Maturity Debt Securities By remaining contractual maturity ($ in millions) Total Within After After After June 30, 2021 Held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 27,576 11,386 12,407 — 3,783 Fair value 28,029 11,461 13,140 — 3,428 Weighted average yield 2.10 % 1.98 2.37 — 1.57 Securities of U.S. states and political subdivisions Amortized cost, net $ 28,243 673 2,177 2,066 23,327 Fair value 29,138 680 2,246 2,150 24,062 Weighted average yield 2.19 % 2.09 1.90 2.65 2.18 Federal agency mortgage-backed securities Amortized cost, net $ 182,891 — — — 182,891 Fair value 184,450 — — — 184,450 Weighted average yield 2.20 % — — — 2.20 Non-agency mortgage-backed securities Amortized cost, net $ 948 — 15 — 933 Fair value 983 — 15 — 968 Weighted average yield 3.09 % — 1.56 — 3.12 Collateralized loan obligations Amortized cost, net $ 21,283 — — 8,155 13,128 Fair value 21,487 — — 8,248 13,239 Weighted average yield 1.68 % — — 1.73 1.65 Total held-to-maturity debt securities Amortized cost, net $ 260,941 12,059 14,599 10,221 224,062 Fair value 264,087 12,141 15,401 10,398 226,147 Weighted average yield 2.15 % 1.98 2.30 1.91 2.16 (1) Weighted average yields displayed by maturity bucket are weighted based on amortized cost and are shown pre-tax.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2021
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Allowance for Credit Losses	Note 4: Loans and Related Allowance for Credit Losses Table 4.1 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 June 30, 2021, and December 31, 2020. Outstanding balances exclude accrued interest receivable on loans, except for certain revolving loans, such as credit card loans. See Note 7 (Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. During the first half of 2021, we reversed accrued interest receivable of $24 million for our commercial portfolio segment and $104 million for our consumer portfolio segment, compared with $21 million and $114 million, respectively, for the same period a year ago. Table 4.1: Loans Outstanding (in millions) Jun 30, Dec 31, Commercial: Commercial and industrial $ 317,618 318,805 Real estate mortgage 120,678 121,720 Real estate construction 22,406 21,805 Lease financing 15,720 16,087 Total commercial 476,422 478,417 Consumer: Residential mortgage – first lien 244,371 276,674 Residential mortgage – junior lien 19,637 23,286 Credit card 34,936 36,664 Auto 51,073 48,187 Other consumer 25,861 24,409 Total consumer 375,878 409,220 Total loans $ 852,300 887,637 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 4.2 presents total non-U.S. commercial loans outstanding by class of financing receivable. Table 4.2: Non-U.S. Commercial Loans Outstanding (in millions) Jun 30, Dec 31, Non-U.S. commercial loans: Commercial and industrial $ 71,409 63,128 Real estate mortgage 6,619 7,278 Real estate construction 1,820 1,603 Lease financing 672 629 Total non-U.S. commercial loans $ 80,520 72,638 Loan Purchases, Sales, and Transfers Table 4.3 presents 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 residential mortgage – first lien loans because their loan activity normally does not impact the ACL. Table 4.3: Loan Purchases, Sales, and Transfers 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended June 30, Purchases $ 134 1 135 332 2 334 Sales (65) — (65) (1,957) (1) (1,958) Transfers (to)/from LHFS (359) (99) (458) (8) (10,379) (10,387) Six months ended June 30, Purchases $ 182 2 184 673 3 676 Sales (338) (188) (526) (2,770) (27) (2,797) Transfers (to)/from LHFS (794) (36) (830) 69 (10,377) (10,308) Commitments to Lend A commitment to lend is a legally binding agreement to lend 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. For unconditionally cancelable commitments at our discretion, we do not recognize an ACL. 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 $82.6 billion at June 30, 2021. We issue commercial letters of credit to assist customers in purchasing goods or services, typically for international trade. At June 30, 2021, and December 31, 2020, we had $1.4 billion and $1.3 billion, 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 11 (Guarantees and Other Commitments) for additional information on standby letters of credit. When we enter into 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, autos, 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 4.4. The table excludes the issued standby and commercial letters of credit and temporary advance arrangements described above. Table 4.4: Unfunded Credit Commitments (in millions) Jun 30, Dec 31, Commercial: Commercial and industrial $ 394,370 378,167 Real estate mortgage 8,794 7,993 Real estate construction 16,260 15,650 Total commercial 419,424 401,810 Consumer: Residential mortgage – first lien 37,920 31,530 Residential mortgage – junior lien 30,170 32,820 Credit card 124,985 121,096 Other consumer 54,724 49,179 Total consumer 247,799 234,625 Total unfunded credit commitments $ 667,223 636,435 Allowance for Credit Losses Table 4.5 presents the allowance for credit losses (ACL) for loans, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. The ACL for loans decreased $3.3 billion from December 31, 2020, due to improvements in current and forecasted economic conditions. Table 4.5: Allowance for Credit Losses for Loans Quarter ended June 30, Six months ended June 30, ($ in millions) 2021 2020 2021 2020 Balance, beginning of period $ 18,043 12,022 19,713 10,456 Cumulative effect from change in accounting policies (1) — — — (1,337) Allowance for purchased credit-deteriorated (PCD) loans (2) — — — 8 Balance, beginning of period, adjusted 18,043 12,022 19,713 9,127 Provision for credit losses (1,239) 9,565 (2,356) 13,398 Interest income on certain impaired loans (3) (36) (38) (77) (76) Loan charge-offs: Commercial: Commercial and industrial (149) (556) (308) (933) Real estate mortgage (11) (72) (63) (75) Real estate construction — — — — Lease financing (10) (19) (31) (32) Total commercial (170) (647) (402) (1,040) Consumer: Residential mortgage – first lien (6) (20) (23) (43) Residential mortgage – junior lien (12) (18) (31) (48) Credit card (357) (415) (692) (886) Auto (128) (158) (257) (314) Other consumer (79) (113) (226) (278) Total consumer (582) (724) (1,229) (1,569) Total loan charge-offs (752) (1,371) (1,631) (2,609) Loan recoveries: Commercial: Commercial and industrial 68 35 139 79 Real estate mortgage 16 5 22 10 Real estate construction 1 1 1 17 Lease financing 5 4 11 8 Total commercial 90 45 173 114 Consumer: Residential mortgage – first lien 25 18 66 44 Residential mortgage – junior lien 43 30 81 65 Credit card 101 88 200 182 Auto 83 52 160 126 Other consumer 29 25 57 56 Total consumer 281 213 564 473 Total loan recoveries 371 258 737 587 Net loan charge-offs (381) (1,113) (894) (2,022) Other 4 — 5 9 Balance, end of period $ 16,391 20,436 16,391 20,436 Components: Allowance for loan losses $ 15,148 18,926 15,148 18,926 Allowance for unfunded credit commitments 1,243 1,510 1,243 1,510 Allowance for credit losses $ 16,391 20,436 16,391 20,436 Net loan charge-offs (annualized) as a percentage of average total loans 0.18 % 0.46 0.21 0.42 Allowance for loan losses as a percentage of total loans 1.78 2.02 1.78 2.02 Allowance for credit losses for loans as a percentage of total loans 1.92 2.19 1.92 2.19 (1) Represents the overall decrease in our ACL for loans as a result of our adoption of CECL on January 1, 2020. (2) Represents the allowance estimated for purchased credit-impaired (PCI) loans that automatically became PCD loans with the adoption of CECL. For additional information, see Note 1 (Summary of Significant Accounting Policies) in our 2020 Form 10-K. (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 4.6 summarizes the activity in the ACL by our commercial and consumer portfolio segments. Table 4.6: Allowance for Credit Losses for Loans Activity by Portfolio Segment 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended June 30, Balance, beginning of period $ 10,682 7,361 18,043 5,279 6,743 12,022 Provision for credit losses (1,021) (218) (1,239) 6,999 2,566 9,565 Interest income on certain loans (3) (15) (21) (36) (12) (26) (38) Loan charge-offs (170) (582) (752) (647) (724) (1,371) Loan recoveries 90 281 371 45 213 258 Net loan charge-offs (80) (301) (381) (602) (511) (1,113) Other 4 — 4 5 (5) — Balance, end of period $ 9,570 6,821 16,391 11,669 8,767 20,436 Six months ended June 30, Balance, beginning of period $ 11,516 8,197 19,713 6,245 4,211 10,456 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 11,516 8,197 19,713 3,384 5,743 9,127 Provision for credit losses (1,688) (668) (2,356) 9,239 4,159 13,398 Interest income on certain loans (3) (34) (43) (77) (26) (50) (76) Loan charge-offs (402) (1,229) (1,631) (1,040) (1,569) (2,609) Loan recoveries 173 564 737 114 473 587 Net loan charge-offs (229) (665) (894) (926) (1,096) (2,022) Other 5 — 5 (2) 11 9 Balance, end of period $ 9,570 6,821 16,391 11,669 8,767 20,436 (1) Represents the overall decrease in our ACL 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 additional information, see Note 1 (Summary of Significant Accounting Policies) in our 2020 Form 10-K. (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. Credit Quality We monitor credit quality by evaluating various attributes and utilize such information in our evaluation of the appropriateness of the ACL for loans. 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 March 31, 2021. COMMERCIAL CREDIT QUALITY INDICATORS We manage a consistent process for assessing commercial loan credit quality. Commercial loans are generally 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 regulatory definitions of pass and criticized categories with the criticized segmented among special mention, substandard, doubtful and loss categories. Table 4.7 provides the outstanding balances of our commercial loan portfolio by risk category. 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 troubled debt restructuring (TDR). At June 30, 2021, we had $442.6 billion and $33.8 billion of pass and criticized commercial loans, respectively. Table 4.7: Commercial Loan Categories by Risk Categories and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans Total (in millions) 2021 2020 2019 2018 2017 Prior June 30, 2021 Commercial and industrial Pass $ 37,051 25,171 28,385 11,075 5,582 12,341 183,360 341 303,306 Criticized 729 1,317 1,325 1,594 826 1,078 7,443 — 14,312 Total commercial and industrial 37,780 26,488 29,710 12,669 6,408 13,419 190,803 341 317,618 Real estate mortgage Pass 14,713 18,977 21,983 15,350 9,245 20,321 4,478 1 105,068 Criticized 1,664 2,450 3,444 2,679 1,286 3,665 422 — 15,610 Total real estate mortgage 16,377 21,427 25,427 18,029 10,531 23,986 4,900 1 120,678 Real estate construction Pass 2,800 4,995 6,148 3,607 775 359 1,138 2 19,824 Criticized 354 501 746 418 442 120 1 — 2,582 Total real estate construction 3,154 5,496 6,894 4,025 1,217 479 1,139 2 22,406 Lease financing Pass 2,244 3,545 3,180 1,752 1,107 2,555 — — 14,383 Criticized 145 293 374 254 129 142 — — 1,337 Total lease financing 2,389 3,838 3,554 2,006 1,236 2,697 — — 15,720 Total commercial loans $ 59,700 57,249 65,585 36,729 19,392 40,581 196,842 344 476,422 Term loans by origination year Revolving loans Revolving loans converted to term loans Total 2020 2019 2018 2017 2016 Prior December 31, 2020 Commercial and industrial Pass $ 56,915 34,040 15,936 7,274 4,048 4,738 177,107 997 301,055 Criticized 1,404 1,327 1,357 972 672 333 11,534 151 17,750 Total commercial and industrial 58,319 35,367 17,293 8,246 4,720 5,071 188,641 1,148 318,805 Real estate mortgage Pass 22,444 26,114 18,679 11,113 11,582 14,663 5,152 6 109,753 Criticized 2,133 2,544 1,817 1,287 1,625 2,082 479 — 11,967 Total real estate mortgage 24,577 28,658 20,496 12,400 13,207 16,745 5,631 6 121,720 Real estate construction Pass 5,242 6,574 4,771 1,736 477 235 1,212 3 20,250 Criticized 449 452 527 4 113 10 — — 1,555 Total real estate construction 5,691 7,026 5,298 1,740 590 245 1,212 3 21,805 Lease financing Pass 3,970 3,851 2,176 1,464 1,199 1,924 — — 14,584 Criticized 308 433 372 197 108 85 — — 1,503 Total lease financing 4,278 4,284 2,548 1,661 1,307 2,009 — — 16,087 Total commercial loans $ 92,865 75,335 45,635 24,047 19,824 24,070 195,484 1,157 478,417 Table 4.8 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. Payment deferral activities instituted in response to the COVID-19 pandemic could continue to delay the recognition of delinquencies for customers who otherwise would have moved into past due status. Table 4.8: Commercial Loan Categories by Delinquency Status (in millions) Commercial Real Real Lease Total June 30, 2021 By delinquency status: Current-29 days past due (DPD) and still accruing $ 315,279 118,719 22,329 15,350 471,677 30-89 DPD and still accruing 483 256 25 155 919 90+ DPD and still accruing 165 105 7 — 277 Nonaccrual loans 1,691 1,598 45 215 3,549 Total commercial loans $ 317,618 120,678 22,406 15,720 476,422 December 31, 2020 By delinquency status: Current-29 DPD and still accruing $ 315,493 119,561 21,532 15,595 472,181 30-89 DPD and still accruing 575 347 224 233 1,379 90+ DPD and still accruing 39 38 1 — 78 Nonaccrual loans 2,698 1,774 48 259 4,779 Total commercial loans $ 318,805 121,720 21,805 16,087 478,417 CONSUMER CREDIT QUALITY INDICATORS We have various classes of consumer loans that present unique credit risks. Loan delinquency, FICO credit scores and LTV for residential mortgage loans are the primary credit quality indicators that we monitor and utilize in our evaluation of the appropriateness of the ACL for the consumer loan portfolio segment. Many of our loss estimation techniques used for the ACL for loans rely on delinquency-based models; therefore, delinquency is an important indicator of credit quality in the establishment of our ACL for consumer loans. Table 4.9 provides the outstanding balances of our consumer loan portfolio by delinquency status. Payment deferral activities instituted in response to the COVID-19 pandemic could continue to delay the recognition of delinquencies for customers who otherwise would have moved into past due status. 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 4.9: Consumer Loan Categories by Delinquency Status and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2021 2020 2019 2018 2017 Prior Total June 30, 2021 Residential mortgage – first lien By delinquency status: Current-29 DPD $ 30,494 47,246 32,078 10,137 17,647 76,251 5,989 1,598 221,440 30-59 DPD 28 33 52 21 34 604 15 30 817 60-89 DPD 1 11 1 3 3 187 8 18 232 90-119 DPD 2 8 3 1 7 64 6 11 102 120-179 DPD — 12 6 3 3 85 16 23 148 180+ DPD — 204 12 10 21 809 100 245 1,401 Government insured/guaranteed loans (1) 3 193 364 566 635 18,470 — — 20,231 Total residential mortgage – first lien 30,528 47,707 32,516 10,741 18,350 96,470 6,134 1,925 244,371 Residential mortgage – junior lien By delinquency status: Current-29 DPD 13 22 34 35 28 909 12,913 4,680 18,634 30-59 DPD — — 1 — — 15 28 40 84 60-89 DPD — — — — — 7 16 29 52 90-119 DPD — — — — — 3 11 22 36 120-179 DPD — — — — — 6 37 49 92 180+ DPD — — — — — 32 215 492 739 Total residential mortgage – junior lien 13 22 35 35 28 972 13,220 5,312 19,637 Credit cards By delinquency status: Current-29 DPD — — — — — — 34,201 226 34,427 30-59 DPD — — — — — — 135 7 142 60-89 DPD — — — — — — 90 6 96 90-119 DPD — — — — — — 80 7 87 120-179 DPD — — — — — — 182 2 184 180+ DPD — — — — — — — — — Total credit cards — — — — — — 34,688 248 34,936 Auto By delinquency status: Current-29 DPD 14,445 15,920 11,321 4,644 2,309 1,677 — — 50,316 30-59 DPD 33 143 148 81 52 85 — — 542 60-89 DPD 8 42 44 24 14 25 — — 157 90-119 DPD 3 17 17 8 5 8 — — 58 120-179 DPD — — — — — — — — — 180+ DPD — — — — — — — — — Total auto 14,489 16,122 11,530 4,757 2,380 1,795 — — 51,073 Other consumer By delinquency status: Current-29 DPD 982 990 994 335 155 173 22,011 150 25,790 30-59 DPD 1 2 3 2 1 2 8 3 22 60-89 DPD — 2 2 1 1 1 5 1 13 90-119 DPD — 1 2 1 — — 4 1 9 120-179 DPD — — — — — — 8 2 10 180+ DPD — — — — — 2 4 11 17 Total other consumer 983 995 1,001 339 157 178 22,040 168 25,861 Total consumer loans $ 46,013 64,846 45,082 15,872 20,915 99,415 76,082 7,653 375,878 (continued on following page) (continued from previous page) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total December 31, 2020 Residential mortgage – first lien By delinquency status: Current-29 DPD $ 53,298 43,297 14,761 24,619 30,533 67,960 6,762 1,719 242,949 30-59 DPD 111 76 36 67 79 750 52 66 1,237 60-89 DPD 88 10 6 12 13 305 56 68 558 90-119 DPD 232 11 5 8 7 197 26 33 519 120-179 DPD 3 4 1 3 5 151 17 29 213 180+ DPD 3 1 4 11 15 758 21 145 958 Government insured/guaranteed loans (1) 215 639 904 1,076 2,367 25,039 — — 30,240 Total residential mortgage – first lien 53,950 44,038 15,717 25,796 33,019 95,160 6,934 2,060 276,674 Residential mortgage – junior lien By delinquency status: Current-29 DPD 22 39 39 37 31 1,115 15,366 5,434 22,083 30-59 DPD — — 1 1 — 22 113 160 297 60-89 DPD — — 1 — — 11 154 271 437 90-119 DPD — — — 1 — 7 45 84 137 120-179 DPD — — — — — 9 36 77 122 180+ DPD — — — — 1 25 29 155 210 Total residential mortgage – junior lien 22 39 41 39 32 1,189 15,743 6,181 23,286 Credit cards By delinquency status: Current-29 DPD — — — — — — 35,612 255 35,867 30-59 DPD — — — — — — 243 12 255 60-89 DPD — — — — — — 167 10 177 90-119 DPD — — — — — — 144 10 154 120-179 DPD — — — — — — 208 3 211 180+ DPD — — — — — — — — — Total credit cards — — — — — — 36,374 290 36,664 Auto By delinquency status: Current-29 DPD 19,625 14,561 6,307 3,459 2,603 697 — — 47,252 30-59 DPD 120 183 114 80 107 46 — — 650 60-89 DPD 32 60 36 25 35 16 — — 204 90-119 DPD 13 26 14 9 12 6 — — 80 120-179 DPD — 1 — — — — — — 1 180+ DPD — — — — — — — — — Total auto 19,790 14,831 6,471 3,573 2,757 765 — — 48,187 Other consumer By delinquency status: Current-29 DPD 1,406 1,383 577 261 59 193 20,246 162 24,287 30-59 DPD 2 7 5 2 1 3 19 10 49 60-89 DPD 1 5 3 1 1 1 10 6 28 90-119 DPD 1 4 2 1 — 1 8 3 20 120-179 DPD — — — — — — 10 4 14 180+ DPD — — — — — 2 3 6 11 Total other consumer 1,410 1,399 587 265 61 200 20,296 191 24,409 Total consumer loans $ 75,172 60,307 22,816 29,673 35,869 97,314 79,347 8,722 409,220 (1) Represents loans whose repayments are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $6.1 billion and $11.1 billion at June 30, 2021, and December 31, 2020, respectively. Of the $2.9 billion of consumer loans not government insured/guaranteed that are 90 days or more past due at June 30, 2021, $460 million was accruing, compared with $2.7 billion past due and $612 million accruing at December 31, 2020. Table 4.10 provides the outstanding balances of our consumer loan portfolio by FICO score. Substantially all of the scored consumer portfolio has an updated FICO score of 680 and above, reflecting a strong current borrower credit profile. FICO scores are 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 $15.9 billion and $13.2 billion at June 30, 2021, and December 31, 2020, respectively. Substantially all loans not requiring a FICO score are securities-based loans originated through retail brokerage. Table 4.10: Consumer Loan Categories by FICO and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2021 2020 2019 2018 2017 Prior Total June 30, 2021 By FICO: Residential mortgage – first lien 800+ $ 14,373 29,351 21,113 6,709 12,245 47,225 2,973 453 134,442 760-799 11,864 12,539 7,250 2,017 3,200 12,684 1,229 257 51,040 720-759 3,281 4,024 2,566 857 1,343 7,473 771 243 20,558 680-719 794 1,103 788 363 603 4,188 463 215 8,517 640-679 129 294 222 107 143 2,117 213 135 3,360 600-639 30 47 75 37 51 1,234 109 93 1,676 < 600 7 11 28 16 32 1,303 139 145 1,681 No FICO available 47 145 110 69 98 1,776 237 384 2,866 Government insured/guaranteed loans (1) 3 193 364 566 635 18,470 — — 20,231 Total residential mortgage – first lien 30,528 47,707 32,516 10,741 18,350 96,470 6,134 1,925 244,371 Residential mortgage – junior lien 800+ — — — — — 236 6,715 1,612 8,563 760-799 — — — — — 142 2,588 906 3,636 720-759 — — — — — 169 1,721 891 2,781 680-719 — — — — — 143 1,022 719 1,884 640-679 — — — — — 82 396 405 883 600-639 — — — — — 52 189 232 473 < 600 — — — — — 53 195 267 515 No FICO available 13 22 35 35 28 95 394 280 902 Total residential mortgage – junior lien 13 22 35 35 28 972 13,220 5,312 19,637 Credit card 800+ — — — — — — 3,987 1 3,988 760-799 — — — — — — 5,561 8 5,569 720-759 — — — — — — 7,825 30 7,855 680-719 — — — — — — 8,437 57 8,494 640-679 — — — — — — 5,122 56 5,178 600-639 — — — — — — 1,929 39 1,968 < 600 — — — — — — 1,819 56 1,875 No FICO available — — — — — — 8 1 9 Total credit card — — — — — — 34,688 248 34,936 Auto 800+ 2,576 2,329 2,157 941 509 271 — — 8,783 760-799 2,505 2,698 2,145 850 390 216 — — 8,804 720-759 2,430 2,721 1,999 825 387 251 — — 8,613 680-719 2,518 2,965 1,968 772 358 259 — — 8,840 640-679 2,267 2,548 1,400 527 257 222 — — 7,221 600-639 1,418 1,519 822 333 178 190 — — 4,460 < 600 775 1,313 993 498 288 362 — — 4,229 No FICO available — 29 46 11 13 24 — — 123 Total auto 14,489 16,122 11,530 4,757 2,380 1,795 — — 51,073 Other consumer 800+ 253 250 204 59 18 60 1,839 19 2,702 760-799 265 225 186 59 15 31 943 22 1,746 720-759 190 184 175 67 19 26 829 28 1,518 680-719 115 125 147 61 19 21 711 26 1,225 640-679 47 52 74 34 12 11 343 19 592 600-639 9 14 24 13 5 6 122 11 204 < 600 3 13 27 16 6 7 121 14 207 No FICO available 101 132 164 30 63 16 1,197 29 1,732 FICO not required — — — — — — 15,935 — 15,935 Total other consumer 983 995 1,001 339 157 178 22,040 168 25,861 Total consumer loans $ 46,013 64,846 45,082 15,872 20,915 99,415 76,082 7,653 375,878 (continued on following page) (continued from previous page) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total December 31, 2020 By FICO: Residential mortgage – first lien 800+ $ 29,365 28,652 9,911 17,416 22,215 40,440 3,391 493 151,883 760-799 17,154 9,866 2,908 4,380 4,955 10,843 1,361 274 51,741 720-759 5,274 3,290 1,189 1,829 2,106 7,001 879 265 21,833 680-719 1,361 1,084 490 678 831 4,403 520 221 9,588 640-679 376 287 148 192 226 2,385 241 154 4,009 600-639 55 56 44 56 92 1,429 127 106 1,965 < 600 14 29 36 44 66 1,789 162 175 2,315 No FICO available 136 135 87 125 161 1,831 253 372 3,100 Government insured/guaranteed loans (1) 215 639 904 1,076 2,367 25,039 — — 30,240 Total residential mortgage – first lien 53,950 44,038 15,717 25,796 33,019 95,160 6,934 2,060 276,674 Residential mortgage – junior lien 800+ — — — — — 293 7,973 1,819 10,085 760-799 — — — — — 177 3,005 1,032 4,214 720-759 — — — — — 207 2,093 1,034 3,334 680-719 — — — — — 183 1,233 854 2,270 640-679 — — — — — 103 503 493 1,099 600-639 — — — — — 67 241 299 607 < 600 — — — — — 76 254 374 704 No FICO available 22 39 41 39 32 83 441 276 973 Total residential mortgage – junior lien 22 39 41 39 32 1,189 15,743 6,181 23,286 Credit card 800+ — — — — — — 3,860 1 3,861 760-799 — — — — — — 5,438 7 5,445 720-759 — — — — — — 7,897 29 7,926 680-719 — — — — — — 8,854 60 8,914 640-679 — — — — — — 5,657 64 5,721 600-639 — — — — — — 2,242 46 2,288 < 600 — — — — — — 2,416 82 2,498 No FICO available — — — — — — 10 1 11 Total credit card — — — — — — 36,374 290 36,664 Auto 800+ 2,875 2,606 1,211 731 452 104 — — 7,979 760-799 3,036 2,662 1,122 579 349 81 — — 7,829 720-759 3,162 2,514 1,095 576 395 98 — — 7,840 680-719 3,534 2,542 1,066 545 400 105 — — 8,192 640-679 3,381 1,948 763 395 334 94 — — 6,915 600-639 2,208 1,165 479 274 276 87 — — 4,489 < 600 1,581 1,357 730 463 533 186 — — 4,850 No FICO available 13 37 5 10 18 10 — — 93 Total auto 19,790 14,831 6,471 3,573 2,757 765 — — 48,187 Other consumer 800+ 353 287 94 35 10 71 2,249 21 3,120 760-799 342 279 93 29 10 34 1,110 16 1,913 720-759 262 258 107 35 11 30 915 26 1,644 680-719 156 213 99 36 11 24 798 31 1,368 640-679 71 112 59 21 7 10 415 23 718 600-639 18 36 22 9 4 8 151 13 261 < 600 13 41 30 12 5 7 161 18 287 No FICO available 195 173 83 88 3 16 1,248 43 1,849 FICO not required — — — — — — 13,249 — 13,249 Total other consumer 1,410 1,399 587 265 61 200 20,296 191 24,409 Total consumer loans $ 75,172 60,307 22,816 29,673 35,869 97,314 79,347 8,722 409,220 (1) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. 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 lien 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 4.11 shows the most updated LTV and CLTV distribution of the residential mortgage – first lien and residential mortgage – junior lien loan portfolios. We consider the trends in residential real estate markets as we monitor credit risk and establish our ACL. 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 4.11: Consumer Loan Categories by LTV/CLTV and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2021 2020 2019 2018 2017 Prior Total June 30, 2021 Residential mortgage – first lien By LTV: 0-60% $ 9,789 18,204 14,733 5,341 11,884 66,680 4,604 1,567 132,802 60.01-80% 20,654 27,433 15,773 4,339 5,369 10,096 1,071 256 84,991 80.01-100% 40 1,720 1,498 416 382 801 304 68 5,229 100.01-120% (1) — 35 52 19 16 101 72 17 312 > 120% (1) — 21 17 6 7 50 30 6 137 No LTV available 42 101 79 54 57 272 53 11 669 Government insured/guaranteed loans (2) 3 193 364 566 635 18,470 — — 20,231 Total residential mortgage – first lien 30,528 47,707 32,516 10,741 18,350 96,470 6,134 1,925 244,371 Residential mortgage – junior lien By CLTV: 0-60% — — — — — 496 8,124 3,558 12,178 60.01-80% — — — — — 254 3,718 1,178 5,150 80.01-100% — — — — — 123 1,051 424 1,598 100.01-120% (2) — — — — — 31 225 92 348 > 120% (2) — — — — — 8 78 28 114 No CLTV available 13 22 35 35 28 60 24 32 249 Total residential mortgage – junior lien 13 22 35 35 28 972 13,220 5,312 19,637 Total $ 30,541 47,729 32,551 10,776 18,378 97,442 19,354 7,237 264,008 Term loans by origination year Revolving loans Revolving loans converted to term loans 2020 2019 2018 2017 2016 Prior Total December 31, 2020 Residential mortgage – first lien By LTV: 0-60% $ 16,582 15,449 6,065 13,190 21,097 59,291 4,971 1,587 138,232 60.01-80% 34,639 24,736 7,724 10,745 8,970 9,333 1,323 326 97,796 80.01-100% 2,332 2,975 900 654 441 1,003 425 100 8,830 100.01-120% (1) 41 106 45 40 41 168 117 26 584 > 120% (1) 31 41 16 19 16 78 44 8 253 No LTV available 110 92 63 72 87 248 54 13 739 Government insured/guaranteed loans (2) 215 639 904 1,076 2,367 25,039 — — 30,240 Total residential mortgage – first lien 53,950 44,038 15,717 25,796 33,019 95,160 6,934 2,060 276,674 Residential mortgage – junior lien By CLTV: 0-60% — — — — — 548 8,626 3,742 12,916 60.01-80% — — — — — 335 5,081 1,554 6,970 80.01-100% — — — — — 187 1,507 641 2,335 100.01-120% (2) — — — — — 59 376 156 591 > 120% (2) — — — — — 15 128 50 193 No CLTV available 22 39 41 39 32 45 25 38 281 Total residential mortgage – junior lien 22 39 41 39 32 1,189 15,743 6,181 23,286 Total $ 53,972 44,077 15,758 25,835 33,051 96,349 22,677 8,241 299,960 (1) Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV. (2) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA. NONACCRUAL LOANS Table 4.12 provides loans on nonaccrual status. In connection with our adoption of CECL, nonaccrual loans may have an ACL or a negative allowance for credit losses from expected recoveries of amounts previously written off. Payment deferral activities instituted in response to the COVID-19 pandemic could c

Leasing Activity

Leasing Activity	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leasing Activity	Note 5: Leasing Activity The information below provides a summary of our leasing activities as a lessor and lessee. See Note 5 (Leasing Activity) in our 2020 Form 10-K for additional information about our leasing activities. As a Lessor Noninterest income on leases, which is presented in Table 5.1, is included in other noninterest income on our consolidated statement of income. Lease expense, included in other noninterest expense on our consolidated statement of income, was $226 million and $244 million for the quarters ended June 30, 2021 and 2020, respectively, and $452 million and $504 million for the first half of 2021 and 2020, respectively. Table 5.1: Leasing Revenue Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Interest income on lease financing (1) $ 172 208 353 437 Other lease revenues: Variable revenues on lease financing 25 26 51 54 Fixed revenues on operating leases 254 294 514 608 Variable revenues on operating leases 18 12 36 25 Other lease-related revenues (2) 16 3 27 1 Noninterest income on leases 313 335 628 688 Total leasing revenue $ 485 543 981 1,125 (1) In second quarter 2021, we elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). (2) 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 5.2 presents balances for our operating leases. Table 5.2: Operating Lease Right of Use (ROU) Assets and Lease Liabilities (in millions) Jun 30, 2021 Dec 31, 2020 ROU assets $ 4,053 4,306 Lease liabilities 4,705 4,962 Table 5.3 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 5.3: Lease Costs Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Fixed lease expense – operating leases $ 265 292 530 583 Variable lease expense 69 80 147 146 Other (1) (28) (42) (31) (56) Total lease costs $ 306 330 646 673

Equity Securities

Equity Securities	6 Months Ended
	Jun. 30, 2021
Equity Securities [Abstract]
Equity Securities	Note 6: Equity Securities Table 6.1 provides a summary of our equity securities by business purpose and accounting method. Table 6.1: Equity Securities (in millions) Jun 30, Dec 31, Held for trading at fair value: Marketable equity securities (1) $ 23,701 23,032 Not held for trading: Fair value: Marketable equity securities 1,624 1,564 Nonmarketable equity securities (2) 10,006 9,413 Total equity securities at fair value 11,630 10,977 Equity method: Private equity 2,897 2,960 Tax-advantaged renewable energy (3) 3,853 3,481 New market tax credit and other 378 409 Total equity method 7,128 6,850 Other methods : Low-income housing tax credit investments (3) 11,439 11,353 Federal Reserve Bank stock and other at cost (4) 3,585 3,588 Private equity (5) 7,064 4,208 Total equity securities not held for trading 40,846 36,976 Total equity securities $ 64,547 60,008 (1) Represents securities held as part of our customer accommodation trading activities. For additional information on these activities, see Note 2 (Trading Activities). (2) Substantially all of these securities are economically hedged with equity derivatives. (3) In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). (4) Substantially all relates to investments in Federal Reserve Bank stock at both June 30, 2021, and December 31, 2020. (5) Represents nonmarketable equity securities accounted for under the measurement alternative, which were predominantly securities associated with our affiliated venture capital business. Low-Income Housing Tax Credit Investments We invest in affordable housing projects that qualify for the low-income housing tax credit (LIHTC), which are designed to promote private development of low-income housing. These investments typically generate a return through the realization of tax credits and other tax benefits. Table 6.2 summarizes the amortization of the investments and the related tax credits and other tax benefits that are recognized in income tax expense/(benefit) on our consolidated statement of income. 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 both June 30, 2021, and December 31, 2020. This liability for unfunded commitments is included in long-term debt on our consolidated balance sheet. Table 6.2: LIHTC Investments (1) Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Proportional amortization of investments $ 382 352 764 703 Tax credits and other tax benefits (431) (401) (875) (797) Net expense/(benefit) recognized within income tax expense $ (49) (49) (111) (94) (1) Excludes the impact of the estimated annual effective income tax rate applied to each period. Realized Gains and Losses Not Held for Trading Table 6.3 provides a summary of the net gains and losses from equity securities not held for trading, which excludes equity method adjustments for our share of the investee’s earnings or losses that are recognized in other noninterest income. Gains and losses for securities held for trading are reported in net gains on trading and securities. Table 6.3: Net Gains (Losses) from Equity Securities Not Held for Trading Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ 74 394 $ 134 (409) Nonmarketable equity securities 893 1,424 535 320 Total equity securities carried at fair value 967 1,818 669 (89) Net gains (losses) from nonmarketable equity securities not carried at fair value (1): Impairment write-downs (42) (106) (57) (1,041) Net unrealized gains related to measurement alternative observable transactions 2,037 24 2,262 246 Net realized gains on sale 496 199 551 199 Total nonmarketable equity securities not carried at fair value 2,491 117 2,756 (596) Net losses from economic hedge derivatives (2) (762) (1,402) (337) (183) Total net gains (losses) from equity securities not held for trading $ 2,696 533 $ 3,088 (868) (1) Includes impairment write-downs and net realized gains on sale related to private equity and venture capital investments in consolidated portfolio companies, which are not reported in equity securities on our consolidated balance sheet. (2) Includes net gains (losses) on derivatives not designated as hedging instruments. Measurement Alternative Table 6.4 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 6.3. Table 6.4: Net Gains (Losses) from Measurement Alternative Equity Securities Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 2,037 24 $ 2,262 246 Impairment write-downs (38) (58) (50) (412) Realized net gains from sale 195 11 195 13 Total net gains recognized during the period $ 2,194 $ (23) $ 2,407 (153) Table 6.5 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 6.5: Measurement Alternative Cumulative Gains (Losses) (in millions) Jun 30, Dec 31, Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 4,577 2,356 Gross unrealized losses due to observable price changes (25) (25) Impairment write-downs (1,008) (969)

Other Assets

Other Assets	6 Months Ended
	Jun. 30, 2021
Other Assets [Abstract]
Other Assets	Note 7: Other Assets Table 7.1 presents the components of other assets. Table 7.1: Other Assets (in millions) Jun 30, 2021 Dec 31, 2020 Corporate/bank-owned life insurance $ 20,488 20,380 Accounts receivable 24,372 38,116 Interest receivable: AFS and HTM debt securities 1,366 1,368 Loans 2,224 2,838 Trading and other 482 415 Customer relationship and other amortized intangibles 287 328 Foreclosed assets: Residential real estate 49 73 Other 80 86 Operating lease assets (lessor) 6,773 7,391 Operating lease ROU assets (lessee) 4,053 4,306 Due from customers on acceptances 144 268 Other 12,135 11,768 Total other assets $ 72,453 87,337

Securitizations and Variable In

Securitizations and Variable Interest Entities	6 Months Ended
	Jun. 30, 2021
Securitizations and Variable Interest Entities [Abstract]
Securitizations and Variable Interest Entities	Note 8: Securitizations and Variable Interest Entities Involvement with Variable Interest Entities (VIEs) In the normal course of business, we enter into various types of on- and off-balance sheet transactions with special purpose entities (SPEs), which are corporations, trusts, limited liability companies or partnerships that are established for a limited purpose. SPEs are often formed in connection with securitization transactions whereby financial assets are transferred to an SPE. SPEs formed in connection with securitization transactions are generally considered variable interest entities (VIEs). The VIE may alter the risk profile of the asset by entering into derivative transactions or obtaining credit support, and issues various forms of interests in those assets to investors. When we transfer financial assets from our consolidated balance sheet to a VIE in connection with a securitization, we typically receive cash and sometimes other interests in the VIE as proceeds for the assets we transfer. In certain transactions with VIEs, we may retain the right to service the transferred assets and repurchase the transferred assets if the outstanding balance of the assets falls below the level at which the cost to service the assets exceed the benefits. In addition, we may purchase the right to service loans transferred to a VIE by a third party. In connection with our securitization or other VIE activities, we have various forms of ongoing involvement with VIEs, which may include: • underwriting securities issued by VIEs and subsequently making markets in those securities; • providing credit enhancement on securities issued by VIEs through the use of letters of credit or financial guarantees; • entering into other derivative contracts with VIEs; • holding senior or subordinated interests in VIEs; • acting as servicer or investment manager for VIEs; • providing administrative or trustee services to VIEs; and • providing seller financing to VIEs. 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. MORTGAGE LOANS SOLD TO U.S. GOVERNMENT SPONSORED ENTITIES AND TRANSACTIONS WITH GINNIE MAE In the normal course of business we sell originated and purchased residential and commercial mortgage loans to government-sponsored entities (GSEs). These loans are generally transferred into securitizations sponsored by the GSEs, which provide certain credit guarantees to investors and servicers. We also transfer mortgage loans into securitizations pursuant to Government National Mortgage Association (GNMA) guidelines which are insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). Mortgage loans eligible for securitization with the GSEs or GNMA are considered conforming loans. The GSEs or GNMA design the structure of these securitizations, sponsor the involved VIEs, and have power over the activities most significant to the VIE. We account for loans transferred in conforming mortgage loan securitization transactions as sales and do not consolidate the VIEs as we are not the primary beneficiary. In exchange for the transfer of loans, we typi cally receive securities issued by the VIEs which we sell to third parties for cash or hold for investment purposes as HTM or AFS securities. We also retain servicing rights on the transferred loans. As a servicer, we retain the option to repurchase loans from GNMA loan securitization pools, which becomes exercisable when three scheduled loan payments remain unpaid by the borrower. We repurchased loans of $1.0 billion and $2.9 billion, during the second quarter and first half of 2021, respectively, and $3.6 billion and $5.1 billion during the second quarter and first half of 2020, respectively, which predominantly represented repurchases of government insured loans. We recorded assets and related liabilities of $128 million and $176 million at June 30, 2021, and December 31, 2020, respectively, where we did not exercise our option to repurchase eligible loans. Upon transfers of loans, we also provide indemnification for losses incurred due to material breaches of contractual representations and warranties, as well as other recourse arrangements. At June 30, 2021, and December 31, 2020, our liability associated with these provisions was $201 million and $221 million, respectively, and the maximum exposure to loss was $13.4 billion and $13.7 billion, respectively. Off-balance sheet mortgage loans sold or secu ritized presented in Table 8.5 are predominantly loans securitized by the GSEs and GNMA. See Note 9 (Mortgage Banking Activities) for additional information about residential and commercial servicing rights, advances and servicing fees. Substantially all residential servicing activity is related to assets transferred to GSE and GNMA securitizations. NONCONFORMING MORTGAGE LOAN SECURITIZATIONS In the normal course of business, we sell nonconforming residential and commercial mortgage loans in securitization transactions that we design and sponsor. Nonconforming mortgage loan securitizations do not involve a government credit guarantee, and accordingly, beneficial interest holders are subject to credit risk of the underlying assets held by the securitization VIE. We typically originate the transferred loans, account for the transfers as sales and do not consolidate the VIE. We also typically retain the right to service the loans and may hold other beneficial interests issued by the VIEs, such as debt securities held for investment purposes. Our servicing role related to nonconforming commercial mortgage loan securitizations is limited to primary or master servicer and the most significant decisions impacting the performance of the VIE are generally made by the special servicer or the controlling class security holder. For our residential nonconforming mortgage loan securitizations accounted for as sales, we either do not hold variable interests that we consider potentially significant or are not the primary servicer for a majority of the VIE assets. WHOLE LOAN SALE TRANSACTIONS We also sell whole loans to VIEs where we have continuing involvement in the form of financing. We account for these transfers as sales, and do not consolidate the VIEs as we do not have the power to direct the most significant activities of the VIEs. Table 8.1 presents information about transfers of assets during the period for which we recorded the transfers as sales and have continuing involvement with the transferred assets. In connection with these transfers, we received proceeds and recorded servicing assets, securities, and loans. Substantially all transfers were related to residential mortgage securitizations with the GSEs or GNMA and resulted in no gain or loss because the loans were already measured at fair value on a recurring basis. Each of these interests are initially measured at fair value. Servicing rights are classified as Level 3 measurements, and generally securities are classified as Level 2. Table 8.1: Transfers with Continuing Involvement 2021 2020 (in millions) Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Quarter ended June 30, Assets sold $ 45,903 5,173 43,602 2,505 Proceeds from transfer (1) 46,230 5,227 43,605 2,569 Net gains (losses) on sale 327 54 3 64 Continuing involvement (2): Servicing rights recognized $ 487 24 443 48 Securities recognized (3) 6,171 39 590 12 Loans recognized — — — — Six months ended June 30, Asset balances sold $ 86,489 8,364 81,987 5,233 Proceeds from transfer (1) 86,921 8,509 82,025 5,366 Net gains (losses) on sale 432 145 38 133 Continuing involvement (2): Servicing rights recognized $ 894 71 889 82 Securities recognized (3) 16,394 68 590 74 Loans recognized 926 — — — (1) Represents cash proceeds and the fair value of non-cash beneficial interests recognized at securitization settlement. Prior periods have been revised to conform with the current period presentation. (2) Represents assets or liabilities recognized at securitization settlement date related to our continuing involvement in the transferred assets. (3) Represents debt securities obtained at securitization settlement held for investment purposes that are classified as available-for-sale or held-to-maturity, which predominantly relate to agency securities. Excludes trading debt securities held temporarily for market-marking purposes, which are sold to third parties at or shortly after securitization settlement, of $11.2 billion and $18.0 billion during the second quarter and first half of 2021, respectively, and $9.4 billion and $17.1 billion during the second quarter and first half of 2020, respectively. In the normal course of business we purchase certain non-agency securities at initial securitization or subsequently in the secondary market. We also provide seller financing in the form of loans. We received cash flows of $3.0 billion and $3.1 billion during the second quarter and first half of 2021, respectively, and $44 million and $117 million during the second quarter and first half of 2020, respectively, related to principal and interest payments on these securities and loans. Table 8.2 presents the key weighted-average assumptions we used to initially measure residential MSRs recognized during the periods presented. Table 8.2: Residential Mortgage Servicing Rights 2021 2020 Quarter ended June 30, Prepayment speed (1) 13.4 % 15.0 Discount rate 6.1 7.0 Cost to service ($ per loan) (2) $ 91 97 Six months ended June 30, Prepayment speed (1) 13.8 % 14.0 Discount rate 6.0 6.8 Cost to service ($ per loan) (2) $ 87 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. See Note 15 (Fair Values of Assets and Liabilities) and Note 9 (Mortgage Banking Activities) for additional information on key economic assumptions for residential MSRs. SALE OF STUDENT LOAN PORTFOLIO In the second quarter and first half of 2021, we sold $3.9 billion and $9.5 billion of student loans, servicing-released, respectively. For the same periods, we received $4.0 billion and $9.8 billion in proceeds from the sales, respectively, and recognized $147 million and $355 million of gains, respectively, which are included in other noninterest income on our consolidated statement of income. In connection with the sales, we provided $1.6 billion and $3.8 billion of collateralized loan financing to a third-party sponsored VIE in the second quarter and first half of 2021, respectively. The loans are measured at amortized cost and are classified in loans on the consolidated balance sheet. The collateral supporting our loan includes the student loans we sold. We do not consolidate the VIE as we do not have power over the significant activities of the entity. RESECURITIZATION ACTIVITIES We enter into resecuritization transactions as part of our trading activities to accommodate the investment and risk management activities of our customers. In our resecuritization transactions, we transfer trading debt securities to VIEs in exchange for new beneficial interests that are sold to third parties at or shortly after securitization settlement. This activity is performed for customers seeking a specific return or risk profile. Substantially all of our transactions involve the resecuritization of conforming mortgage-backed securities issued by the GSEs or GNMA. We do not consolidate the resecuritization VIEs as we share in the decision-making power with third parties and do not hold significant economic interests in the VIEs other than for market-making activities. Table 8.3 presents information about assets transferred to re-securitization VIEs and Table 8.4 presents information about our resecuritization VIEs. Table 8.3: Transfers to Resecuritization VIEs (in millions) 2021 2020 Quarter ended June 30, Assets sold $ 7,873 19,982 Securities recognized (99) 153 Six months ended June 30, Assets sold $ 25,302 29,454 Securities recognized 915 815 Table 8.4: Resecuritization VIEs (in millions) Jun 30, 2021 Dec 31, 2020 Total VIE assets $ 125,543 130,446 Carrying value of securities 1,137 1,461 Off-Balance Sheet Loans Table 8.5 presents information about the principal balances of off-balance sheet loans that were sold or securitized, including residential mortgage loans sold to the GSEs, 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. In accordance with applicable servicing guidelines, delinquency status continues to advance for loans with COVID-related payment deferrals. For loans sold or securitized where servicing is our only form of continuing involvement, we generally experience a loss only 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 8.5: Off-Balance Sheet Loans Sold or Securitized Net charge-offs (2) Total loans Delinquent loans and foreclosed assets (1) Six months ended June 30, (in millions) Jun 30, 2021 Dec 31, 2020 Jun 30, 2021 Dec 31, 2020 2021 2020 Commercial $ 116,704 114,134 2,363 2,217 122 83 Residential 738,698 818,886 20,869 29,962 12 59 Total off-balance sheet sold or securitized loans (3) $ 855,402 933,020 23,232 32,179 134 142 (1) Includes $203 million and $394 million of commercial foreclosed assets and $163 million and $204 million of residential foreclosed assets at June 30, 2021, and December 31, 2020, 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 June 30, 2021, and December 31, 2020, the table includes total loans of $784.3 billion and $864.8 billion, delinquent loans of $19.8 billion and $28.5 billion, and foreclosed assets of $124 million and $152 million, respectively, for FNMA, FHLMC and GNMA. Transactions with Unconsolidated VIEs MORTGAGE LOAN SECURITIZATIONS Table 8.6 includes nonconforming mortgage loan securitizations where we originate and transfer the loans to the unconsolidated securitization VIEs that we sponsor. For additional information about these VIEs, see the “Loan Sales and Securitization Activity” section within this Note. Nonconforming mortgage loan securitizations also include commercial mortgage loan securitizations sponsored by third parties where we did not originate or transfer the loans but serve as master servicer and invest in securities that could be potentially significant to the VIE. Conforming loan securitization and resecuritization transactions involving the GSEs and GNMA are excluded from Table 8.6 because we are not the sponsor or we do not have power over the activities most significant to the VIEs. Additionally, due to the nature of the guarantees provided by the GSEs and the FHA and VA, our credit risk associated with these VIEs is limited. For additional information about conforming mortgage loan securitizations and resecuritizations, see the “Loan Sales and Securitization Activity” and "Resecuritization Activities" sections within this Note. TAX CREDIT STRUCTURES We co-sponsor and make investments in affordable housing and sustainable energy projects that are designed to generate a return primarily through the realization of federal tax credits. The projects are typically managed by project sponsors who have the power over the VIE’s assets. In some instances, our investments in these structures may require that we fund future capital commitments at the discretion of the project sponsors. COMMERCIAL REAL ESTATE LOANS We transfer purchased industrial development bonds and GSE credit enhancements to VIEs in exchange for beneficial interests. We own all of the beneficial interests and may also service the underlying mortgages that serve as collateral to the bonds. Prior to first quarter 2021, we consolidated these VIEs as we controlled the key decisions. During first quarter 2021, we amended the structures such that we no longer control the key decisions of the VIEs. The GSEs have the power to direct the servicing and workout activities of the VIE in the event of a default. As a result, we deconsolidated the VIEs during first quarter 2021, and recognized the beneficial interests at fair value on our consolidated balance sheet. OTHER VIE STRUCTURES We engage in various forms of structured finance arrangements with other VIEs, including collateralized debt obligations, asset-backed finance structures and other securitizations collateralized by asset classes other than mortgages. Collateral may include rental properties, asset-backed securities, student loans, mortgage loans and auto loans. We may participate in structuring or marketing the arrangements, as well as provide financing, service one or more of the underlying assets, or enter into derivatives with the VIEs. We may also receive fees for those services. We are not the primary beneficiary of these structures because we do not have power to direct the most significant activities of the VIEs. Table 8.6 provides a summary of our exposure to the unconsolidated VIEs described above, which includes investments in securities, loans, guarantees, liquidity agreements, commitments and certain derivatives. We exclude certain transactions with unconsolidated VIEs when our continuing involvement is temporary or administrative in nature or insignificant in size. In Table 8.6, “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 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. Debt, guarantees and other commitments include amounts related to loans sold that we may be required to repurchase, or otherwise indemnify or reimburse the investor or insurer for losses incurred, due to material breach of contractual representations and warranties as well as other retained recourse arrangements. The maximum exposure to loss for material breach of contractual representations and warranties represents a stressed case estimate we utilize for determining stressed case regulatory capital needs and is considered to be a remote scenario. “Maximum exposure to loss” 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. Table 8.6: Unconsolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt Equity securities All other Debt and other liabilities Net assets June 30, 2021 Nonconforming mortgage loan securitizations $ 134,023 — 2,401 — 663 — 3,064 Tax credit structures 41,058 1,875 — 11,448 — (4,218) 9,105 Commercial real estate loans 5,366 5,357 — — 8 — 5,365 Other 6,541 1,888 — 57 52 (1) 1,996 Total $ 186,988 9,120 2,401 11,505 723 (4,219) 19,530 Maximum exposure to loss Loans Debt Equity securities All other Debt, guarantees, Total exposure Nonconforming mortgage loan securitizations $ — 2,401 — 663 31 3,095 Tax credit structures 1,875 — 11,448 — 3,023 16,346 Commercial real estate loans 5,357 — — 8 712 6,077 Other 1,888 — 57 52 230 2,227 Total $ 9,120 2,401 11,505 723 3,996 27,745 Carrying value – asset (liability) (in millions) Total Loans Debt Equity All other Debt and other liabilities Net assets December 31, 2020 Nonconforming mortgage loan securitizations $ 127,717 — 2,303 — 606 — 2,909 Tax credit structures (3) 41,125 1,760 — 11,362 — (4,202) 8,920 Commercial real estate loans — — — — — — — Other 1,991 89 — 51 62 (1) 201 Total $ 170,833 1,849 2,303 11,413 668 (4,203) 12,030 Maximum exposure to loss Loans Debt Equity All other Debt, Total exposure Nonconforming mortgage loan securitizations $ — 2,303 — 607 34 2,944 Tax credit structures (3) 1,760 — 11,362 — 3,108 16,230 Commercial real estate loans — — — — — — Other 89 — 51 62 230 432 Total $ 1,849 2,303 11,413 669 3,372 19,606 (1) Includes $317 million and $310 million of securities classified as trading at June 30, 2021, and December 31, 2020, respectively. (2) All other assets includes mortgage servicing rights, derivative assets, and other assets (predominantly servicing advances). (3) In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). Consolidated VIEs We consolidate VIEs where we are the primary beneficiary. We are the primary beneficiary of the following structure types: COMMERCIAL AND INDUSTRIAL LOANS AND LEASES We securitize dealer floor plan loans and leases in a revolving master trust entity and hold the subordinated notes and residual equity interests. As servicer and residual interest holder, we control the key decisions of the trust and consolidate the entity. The total VIE assets held by the master trust represent a majority of the total VIE assets presented for this category in Table 8.7. In a separate transaction structure, we also provide the majority of debt and equity financing to an SPE that engages in lending and leasing to specific vendors and service the underlying collateral. OTHER VIE STRUCTURES Other VIEs are primarily related to municipal tender option bond (MTOB) transactions and nonconforming mortgage loan securitizations that we sponsor. MTOBs are vehicles to finance the purchase of municipal bonds through the issuance of short-term debt to investors. Our involvement with MTOBs includes serving as the residual interest holder, which provides control over the key decisions of the VIE, as well as the remarketing agent or liquidity provider related to the debt issued to investors. We also securitize nonconforming mortgage loans, in which our involvement includes servicer of the underlying assets and holder of subordinate or senior securities issued by the VIE. Table 8.7 presents a summary of financial assets and liabilities of our consolidated VIEs. The carrying value represents assets and liabilities recorded on our consolidated balance sheet. 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 notional amount of the derivative is included in “Total VIE assets.” On our consolidated balance sheet, we separately disclose (1) the consolidated assets of certain VIEs that can only be used to settle the liabilities of those VIEs, and (2) the consolidated liabilities of certain VIEs for which the VIE creditors do not have recourse to Wells Fargo. Table 8.7: Transactions with Consolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt All other Long-term debt All other liabilities (3) June 30, 2021 Commercial and industrial loans and leases $ 6,981 3,623 — 238 — (183) Commercial real estate loans (4) — — — — — — Other 1,138 452 518 96 (178) (404) Total consolidated VIEs $ 8,119 4,075 518 334 (178) (587) December 31, 2020 Commercial and industrial loans and leases $ 6,987 5,005 — 223 — (200) Commercial real estate loans (4) 5,369 5,357 — 12 — — Other 1,627 507 967 75 (203) (900) Total consolidated VIEs $ 13,983 10,869 967 310 (203) (1,100) (1) Includes $117 million and $269 million of securities classified as trading at June 30, 2021, and December 31, 2020, respectively. (2) All other assets includes cash and due from banks, Interest-earning deposits with banks, derivative assets, equity securities, and other assets. (3) All other liabilities includes short-term borrowings, derivative liabilities, and accrued expenses and other liabilities. (4) For structure description, see the "Transactions with Unconsolidated VIEs" section within this Note. These consolidated VIEs were deconsolidated in first quarter 2021. 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 $381 million and $704 million at June 30, 2021, and December 31, 2020, respectively. In second quarter 2021, 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 $332 million were distributed to the preferred security holders. See Note 16 (Preferred Stock) for additional information about trust preferred securities.

Mortgage Banking Activities

Mortgage Banking Activities	6 Months Ended
	Jun. 30, 2021
Mortgage Banking Activities [Abstract]
Mortgage Banking Activities	Note 9: 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 apply the fair value method to residential MSRs. The amortized cost of commercial MSRs was $1.3 billion and $1.4 billion with an estimated fair value of $1.5 billion and $1.4 billion at June 30, 2021, and June 30, 2020, respectively. Table 9.1 presents the changes in MSRs measured using the fair value method. Table 9.1: Analysis of Changes in Fair Value MSRs Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Fair value, beginning of period $ 7,536 8,126 6,125 11,517 Servicing from securitizations or asset transfers (1) 485 462 891 923 Sales and other (2) (7) (1) (8) (32) Net additions 478 461 883 891 Changes in fair value: Due to valuation inputs or assumptions: Mortgage interest rates (3) (529) (600) 1,101 (3,622) Servicing and foreclosure costs (4) — (349) 9 (422) Discount rates 160 — 207 27 Prepayment estimates and other (5) (440) (182) (535) (371) Net changes in valuation inputs or assumptions (809) (1,131) 782 (4,388) Changes due to collection/realization of expected cash flows (6) (488) (637) (1,073) (1,201) Total changes in fair value (1,297) (1,768) (291) (5,589) Fair value, end of period $ 6,717 6,819 6,717 6,819 (1) Includes impacts associated with exercising cleanup calls on securitizations and our right to repurchase delinquent loans from GNMA loan securitization pools. 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 in MSRs if related to portfolios with servicing liabilities. (3) Includes prepayment speed changes as well as other valuation changes due to changes in mortgage interest rates. (4) Includes costs to service and unreimbursed foreclosure costs. (5) Represents other changes in valuation model inputs or assumptions including prepayment speed estimation changes that are independent of mortgage interest rate changes. (6) 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 9.2 provides key economic assumptions and sensitivity of the current fair value of residential MSRs 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 15 (Fair Values of Assets and Liabilities) for additional information on key economic assumptions for residential MSRs. Table 9.2: Economic Assumptions and Sensitivity of Residential MSRs ($ in millions, except cost to service amounts) Jun 30, 2021 Dec 31, 2020 Fair value of interests held $ 6,717 6,125 Expected weighted-average life (in years) 4.2 3.7 Key economic assumptions: Prepayment speed assumption 17.2 % 19.9 Impact on fair value from 10% adverse change $ 417 434 Impact on fair value from 25% adverse change 967 1,002 Discount rate assumption 5.4 % 5.8 Impact on fair value from 100 basis point increase $ 274 229 Impact on fair value from 200 basis point increase 525 440 Cost to service assumption ($ per loan) 111 130 Impact on fair value from 10% adverse change 171 181 Impact on fair value from 25% adverse change 427 454 The sensitivities in the preceding 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, which might magnify or counteract the sensitivities. We present the components of our managed servicing portfolio in Table 9.3 at unpaid principal balance for loans serviced and subserviced for others and at book value for owned loans serviced. Table 9.3: Managed Servicing Portfolio (in billions) Jun 30, 2021 Dec 31, 2020 Residential mortgage servicing: Serviced and subserviced for others $ 771 859 Owned loans serviced 284 323 Total residential servicing 1,055 1,182 Commercial mortgage servicing: Serviced and subserviced for others 584 583 Owned loans serviced 123 123 Total commercial servicing 707 706 Total managed servicing portfolio $ 1,762 1,888 Total serviced for others, excluding subserviced for others $ 1,344 1,431 MSRs as a percentage of loans serviced for others 0.60 % 0.52 Weighted average note rate (mortgage loans serviced for others) 3.93 4.03 At both June 30, 2021, and December 31, 2020, we had servicer advances, net of an allowance for uncollectible amounts, of $3.4 billion. As the servicer of loans for others, we advance certain payments of principal, interest, taxes, insurance, and default-related expenses which are generally reimbursed within a short timeframe from cash flows from the trust, GSEs, insurer or borrower. The credit risk related to these advances is limited since the reimbursement is generally senior to cash payments to investors. We also advance payments of taxes and insurance for our owned loans which are collectible from the borrower. We maintain an allowance for uncollectible amounts for advances on loans serviced for others that may not be reimbursed if the payments were not made in accordance with applicable servicing agreements or if the insurance or servicing agreements contain limitations on reimbursements. Servicing advances on owned loans are charged-off when deemed uncollectible. Table 9.4 presents the components of mortgage banking noninterest income. Table 9.4: Mortgage Banking Noninterest Income Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Servicing fees: Contractually specified servicing fees, late charges and ancillary fees $ 692 749 1,416 1,614 Unreimbursed direct servicing costs (1) (90) (105) (214) (212) Servicing fees 602 644 1,202 1,402 Amortization (2) (33) (100) (98) (166) Changes due to collection/realization of expected cash flows (3) (A) (488) (637) (1,073) (1,201) Net servicing fees 81 (93) 31 35 Changes in fair value of MSRs due to valuation inputs or assumptions (4) (B) (809) (1,131) 782 (4,388) Net derivative gains (losses) from economic hedges (5) 707 535 (933) 3,935 Market-related valuation changes to MSRs, net of hedge results (102) (596) (151) (453) Total servicing income, net (21) (689) (120) (418) Net gains on mortgage loan originations/sales (6) 1,357 1,006 2,782 1,114 Total mortgage banking noninterest income $ 1,336 317 2,662 696 Total changes in fair value of MSRs carried at fair value (A)+(B) $ (1,297) (1,768) (291) (5,589) (1) Includes costs associated with foreclosures, unreimbursed interest advances to investors, and other interest costs. (2) Includes a $37 million reversal of impairment recorded in the second quarter and first half of 2021, on the commercial amortized MSRs. Also, includes $30 million impairment recorded in the second quarter and first half of 2020, on the commercial amortized MSRs. (3) 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. (4) Refer to the analysis of changes in fair value MSRs presented in Table 9.1 in this Note for more detail. (5) See Note 14 (Derivatives) for additional discussion and detail on economic hedges. (6) Includes net gains (losses) of $(420) million and $845 million in the second quarter and first half of 2021, respectively, and $(393) million and $(1.3) billion in the second quarter and first half of 2020, respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Note 10: Intangible Assets Table 10.1 presents the gross carrying value of intangible assets and accumulated amortization. Table 10.1: Intangible Assets June 30, 2021 December 31, 2020 (in millions) Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value Amortized intangible assets (1): MSRs (2) $ 4,690 (3,398) 1,292 4,612 (3,300) 1,312 Customer relationship and other intangibles 879 (592) 287 879 (551) 328 Total amortized intangible assets $ 5,569 (3,990) 1,579 5,491 (3,851) 1,640 Unamortized intangible assets: MSRs (carried at fair value) $ 6,717 6,125 Goodwill 26,194 26,392 Trademark 14 14 (1) Balances are excluded commencing in the period following full amortization. (2) Includes a $5 million and $37 million valuation allowance recorded for amortized MSRs at June 30, 2021, and December 31, 2020, respectively. See Note 9 (Mortgage Banking Activities) for additional information on MSRs. Table 10.2 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 June 30, 2021. Future amortization expense may vary from these projections. Table 10.2: Amortization Expense for Intangible Assets (in millions) Amortized MSRs Customer relationship and other intangibles Total Six months ended June 30, 2021 (actual) $ 98 41 139 Estimate for the remainder of 2021 $ 127 40 167 Estimate for year ended December 31, 2022 232 68 300 2023 203 59 262 2024 177 48 225 2025 152 39 191 2026 117 32 149 In the first half of 2021, we announced agreements to sell Wells Fargo Asset Management and Corporate Trust Services and transferred the associated goodwill from the Wealth and Investment Management operating segment and the Commercial Banking operating segment, respectively, to Corporate. Also in the first half of 2021, we recognized goodwill write-downs related to sales of the student loan portfolio and our Canadian equipment finance business. Table 10.3 shows the allocation of goodwill to our reportable operating segments. Table 10.3: Goodwill (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Consolidated Company December 31, 2020 $ 16,418 3,018 5,375 1,276 305 26,392 Divestitures — — — — (201) (201) Foreign currency translation — 3 — — — 3 Transfers of goodwill — (80) — (932) 1,012 — June 30, 2021 $ 16,418 2,941 5,375 344 1,116 26,194

Guarantees and Other Commitment

Guarantees and Other Commitments	6 Months Ended
	Jun. 30, 2021
Guarantees [Abstract]
Guarantees and Other Commitments	Note 11: Guarantees 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. Table 11.1 shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts. Table 11.1: 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 June 30, 2021 Standby letters of credit $ 132 12,639 4,838 1,927 457 19,861 6,873 Direct pay letters of credit 10 1,927 2,544 368 43 4,882 1,140 Written options (1) (548) 12,943 6,278 723 58 20,002 13,666 Loans and LHFS sold with recourse (2) 30 89 826 3,010 9,323 13,248 11,216 Exchange and clearing house guarantees — — — — 5,243 5,243 — Other guarantees and indemnifications (3) 1 629 3 — 239 871 570 Total guarantees $ (375) 28,227 14,489 6,028 15,363 64,107 33,465 December 31, 2020 Standby letters of credit $ 156 11,977 4,962 1,897 433 19,269 7,528 Direct pay letters of credit 18 2,256 2,746 531 39 5,572 1,102 Written options (1) (538) 12,735 7,972 889 58 21,654 13,394 Loans and LHFS sold with recourse (2) 33 177 819 1,870 9,723 12,589 10,332 Exchange and clearing house guarantees — — — — 5,510 5,510 — Other guarantees and indemnifications (3) — 734 1 1 1,414 2,150 590 Total guarantees $ (331) 27,879 16,500 5,188 17,177 66,744 32,946 (1) Written options, which are in the form of derivatives, are also included in the derivative disclosures in Note 14 (Derivatives). Carrying value net asset position is a result of certain deferred premium option trades. (2) Represents recourse provided, all to the GSEs, on loans sold under various programs and arrangements. (3) Includes indemnifications provided to certain third-party clearing agents. Estimated maximum exposure to loss was $210 million and $1.4 billion with related collateral of $2.1 billion and $1.2 billion as of June 30, 2021, and December 31, 2020, 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 11.1 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 4 (Loans and Related Allowance for Credit Losses). MERCHANT PROCESSING SERVICES We provide debit and credit card transaction processing services through payment networks directly for merchants and as a sponsor for merchant processing servicers, including our joint venture with a third party that is accounted for as an equity method investment. In our role as the merchant acquiring bank, we have a potential obligation in connection with payment and delivery disputes between the merchant and the cardholder that are resolved in favor of the cardholder. If we are unable to collect the amounts from the merchant, we incur a loss for the refund to the cardholder. We are secondarily obligated to make a refund for transactions involving sponsored merchant processing servicers. We generally have a low likelihood of loss in connection with our merchant processing services because most products and services are delivered when purchased and amounts are generally refunded when items are returned to the merchant. In addition, we may reduce our risk in connection with these transactions by withholding future payments and requiring cash or other collateral. For the first half of 2021, we processed card transaction volume of $790.2 billion as a merchant acquiring bank, and related losses, including those from our joint venture entity, were immaterial. GUARANTEES OF SUBSIDIARIES In the normal course of business, the Parent may provide counterparties with guarantees related to its subsidiaries’ obligations. These obligations are included in the Company’s consolidated balance sheet or are reflected as off-balance sheet commitments, and therefore, the Parent has not recognized a separate liability for these guarantees. 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 securities are not guaranteed by any other subsidiary of the Parent. The guaranteed liabilities were $1.6 billion and $2.3 billion at June 30, 2021, and December 31, 2020, respectively. These guarantees rank on parity with all of the Parent’s other unsecured and unsubordinated indebtedness. The assets of the Parent consist primarily of equity in its subsidiaries, and the Parent is a separate and distinct legal entity from its subsidiaries. As a result, the Parent’s ability to address claims of holders of these debt securities against the Parent under the guarantee depends on the Parent’s receipt of dividends, loan payments and other funds from its subsidiaries. If any of the Parent’s subsidiaries becomes insolvent, the direct creditors of that subsidiary will have a prior claim on that subsidiary’s assets. The rights of the Parent and the rights of the Parent’s creditors will be subject to that prior claim unless the Parent is also a direct creditor of that subsidiary. For additional information regarding other restrictions on the Parent’s ability to receive dividends, loan payments and other funds from its subsidiaries, see Note 23 (Regulatory Capital Requirements and Other Restrictions). 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 both June 30, 2021, and December 31, 2020, we had commitments to purchase debt securities of $18 million and commitments to purchase equity securities of $3.2 billion. 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 Table 11.1 in Other guarantees and indemnifications. 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 $12.9 billion and $12.0 billion as of June 30, 2021, and December 31, 2020, respectively. Given the nature of these commitments, they are excluded from Table 4.4 (Unfunded Credit Commitments) in Note 4 (Loans and Related Allowance for Credit Losses).

Pledged Assets and Collateral

Pledged Assets and Collateral	6 Months Ended
	Jun. 30, 2021
Transfers and Servicing [Abstract]
Pledge Assets and Collateral	Note 12: Pledged Assets and Collateral Pledged Assets Table 12.1 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 consolidated 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. All of the collateral we pledge related to trading activity 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 financial assets to secure trust and public deposits, borrowings and letters of credit from the Federal Home Loan Bank (FHLB) and the Board of Governors of the Federal Reserve System (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 consolidated balance sheet which represent certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. See Note 8 (Securitizations and Variable Interest Entities) for additional information on consolidated VIE assets. Table 12.1: Pledged Assets (in millions) Jun 30, Dec 31, Related to trading activities: Repledged third-party owned debt and equity securities $ 37,134 44,765 Trading debt securities and other 18,362 19,572 Equity securities 704 470 Total pledged assets related to trading activities 56,200 64,807 Related to non-trading activities: Loans 308,551 344,220 Debt securities: Available-for-sale 59,512 57,289 Held-to-maturity 11,552 17,290 Other financial assets 531 230 Total pledged assets related to non-trading activities 380,146 419,029 Related to VIEs: Consolidated VIE assets 4,927 12,146 Loans eligible for repurchase from GNMA securitizations 130 179 Total pledged assets related to VIEs 5,057 12,325 Total pledged assets $ 441,403 496,161 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. Our securities financing activities primarily 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 12.2 presents resale and repurchase agreements subject to master repurchase agreements (MRA) and securities borrowing and lending agreements subject to master securities lending agreements (MSLA). Collateralized financings, and those with a single counterparty, are presented net on our consolidated balance sheet, provided certain criteria are met that permit balance sheet netting. Substantially all transactions subject to these agreements do not meet those criteria and thus are not eligible for balance sheet netting. Collateral we pledged consists of non-cash instruments, such as securities or loans, and is not netted on the consolidated balance sheet against the related liability. Collateral we received includes securities or loans and is not recognized on our consolidated 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 12.2, we also have balance sheet netting related to derivatives that is disclosed in Note 14 (Derivatives). Table 12.2: Offsetting – Securities Financing Activities (in millions) Jun 30, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 101,027 92,446 Gross amounts offset in consolidated balance sheet (1) (13,845) (11,513) Net amounts in consolidated balance sheet (2) 87,182 80,933 Collateral not recognized in consolidated balance sheet (3) (86,453) (80,158) Net amount (4) $ 729 775 Liabilities: Repurchase and securities lending agreements Gross amounts recognized $ 47,281 57,622 Gross amounts offset in consolidated balance sheet (1) (13,844) (11,513) Net amounts in consolidated balance sheet (5) 33,437 46,109 Collateral pledged but not netted in consolidated balance sheet (6) (33,177) (45,819) Net amount (4) $ 260 290 (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 $70.1 billion and $65.6 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at June 30, 2021, and December 31, 2020, respectively. Also includes securities purchased under long-term resale agreements (generally one year or more) classified in loans, which totaled $17.1 billion and $15.3 billion, at June 30, 2021, and December 31, 2020, 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 June 30, 2021, and December 31, 2020, we have received total collateral with a fair value of $118.9 billion and $108.5 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 $34.5 billion and $36.1 billion at June 30, 2021, and December 31, 2020, respectively. (4) Represents the amount of our exposure (assets) or obligation (liabilities) that is not collateralized and/or is not subject to an enforceable MRA or MSLA. (5) Amount is classified in short-term borrowings on our consolidated balance sheet. (6) Represents the fair value of 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 June 30, 2021, and December 31, 2020, we have pledged total collateral with a fair value of $48.5 billion and $59.2 billion, respectively, substantially all of which may be sold or repledged by the counterparty. 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. Our collateral primarily 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 12.3 provides the gross amounts recognized on the consolidated balance sheet (before the effects of offsetting) of our liabilities for repurchase and securities lending agreements disaggregated by underlying collateral type. Table 12.3: Gross Obligations by Underlying Collateral Type (in millions) Jun 30, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 19,730 22,922 Securities of U.S. States and political subdivisions 24 4 Federal agency mortgage-backed securities 8,029 15,353 Non-agency mortgage-backed securities 860 1,069 Corporate debt securities 10,047 9,944 Asset-backed securities 1,262 1,054 Equity securities 892 1,500 Other 783 336 Total repurchases 41,627 52,182 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 42 64 Federal agency mortgage-backed securities 31 23 Corporate debt securities 45 79 Equity securities (1) 5,422 5,189 Other 114 85 Total securities lending 5,654 5,440 Total repurchases and securities lending $ 47,281 57,622 (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 12.4 provides the contractual maturities of our gross obligations under repurchase and securities lending agreements. Table 12.4: Contractual Maturities of Gross Obligations (in millions) Overnight/continuous Up to 30 days 30-90 days >90 days Total gross obligation June 30, 2021 Repurchase agreements $ 28,584 3,093 4,765 5,185 41,627 Securities lending arrangements 4,853 200 601 — 5,654 Total repurchases and securities lending (1) $ 33,437 3,293 5,366 5,185 47,281 December 31, 2020 Repurchase agreements $ 36,946 5,251 5,100 4,885 52,182 Securities lending arrangements 4,690 400 350 — 5,440 Total repurchases and securities lending (1) $ 41,636 5,651 5,450 4,885 57,622 (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.

Legal Actions

Legal Actions	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Legal Actions	Note 13: 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. The Company has entered into an agreement pursuant to which the Company will pay $20.8 million to resolve the cases, subject to court approval. 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 actions alleging, among other things, unfair and deceptive practices relating to these CPI policies, were filed against the Company and consolidated into one multi-district litigation in the United States District Court for the Central District of California. As previously disclosed, the Company entered into a settlement to resolve the multi-district litigation. Shareholders also filed a putative 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 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. In June 2021, the court granted preliminary approval of an agreement pursuant to which the Company will pay $45 million and make certain changes to its GAP refund practices in order to settle the action. Allegations related to the CPI and GAP programs are among the subjects of a shareholder derivative lawsuit pending in the United States District Court for the Northern District of California. These and other issues related to the origination, servicing, and collection of consumer auto loans, including related insurance products, have also subjected the Company to formal or informal inquiries, investigations, or examinations from federal and state government agencies, including the CFPB. As previously disclosed, the Company entered into an agreement to resolve investigations by the state attorneys general. COMMERCIAL LENDING SHAREHOLDER LITIGATION In October and November 2020, plaintiffs filed two putative securities fraud class actions in the United States District Court for the Northern District of California alleging that the Company and certain of its former executive officers made false and misleading statements or omissions regarding, among other things, the Company’s commercial lending underwriting practices, the credit quality of its commercial credit portfolios, and the value of its commercial loans, collateralized loan obligations and commercial mortgage-backed securities. CONSENT ORDER DISCLOSURE LITIGATION Wells Fargo shareholders have brought a putative securities fraud class action in the United States District Court for the Southern District of New York alleging that the Company and certain of its current and former executive officers and directors made false or misleading statements regarding the Company’s efforts to comply with the February 2018 consent order with the Federal Reserve Board and the April 2018 consent orders with the CFPB and OCC. Allegations related to the Company’s efforts to comply with these three consent orders are also among the subjects of a shareholder derivative lawsuit pending in the United States District Court for the Northern District of California. CONSUMER DEPOSIT ACCOUNT RELATED REGULATORY INVESTIGATIONS 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. The CFPB is also investigating certain of the Company's past disclosures to customers regarding the minimum qualifying debit card usage required for customers to receive a waiver of monthly service fees on certain consumer deposit accounts. 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 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. 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. MORTGAGE LENDING MATTERS Plaintiffs representing a 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. In March 2020, the Company entered into an agreement pursuant to which the Company paid $18.5 million to resolve the claims of the initial certified class in the Hernandez case, which was approved by the district court in October 2020. The Hernandez settlement has been reopened to include additional borrowers who the Company determined should have been included in the settlement class because the Company identified a population of additional borrowers during the relevant class period whose loans had not previously been reviewed for inclusion in the original population of impacted customers. In June 2021, the Company entered into an agreement pursuant to which the Company will pay an additional approximately $22 million to resolve the Hernandez case. In July 2021, the Company entered into an agreement in the Ryder case pursuant to which the Company will pay $12 million to cover other impacted borrowers who were not included in the Hernandez case. The Dore and Coordes cases have been voluntarily dismissed. In addition, federal banking regulators and other government agencies have undertaken formal or informal inquiries or investigations regarding these and other mortgage servicing matters. 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, which was appealed by plaintiffs to the United States Court of Appeals for the Eleventh Circuit. In April 2021, the Eleventh Circuit upheld the district court's decision. 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. The Company has responded to requests from certain of the foregoing. As previously disclosed, the Company entered into agreements to resolve the state attorneys general investigations. 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 made payments totaling $3.0 billion. In addition, as part of the settlements and included in the $3.0 billion amount, the Company 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 were filed by non-governmental parties seeking damages or other remedies related to these retail sales practices. As previously disclosed, the Company entered into various settlements to resolve these lawsuits. RMBS TRUSTEE LITIGATION In December 2014, Phoenix Light SF Limited and certain related entities and the National Credit Union Administration (NCUA) filed complaints 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 trusts. Complaints raising similar allegations have been filed by Commerzbank AG in the Southern District of New York and by IKB International and IKB Deutsche Industriebank in New York state court. In each case, the plaintiffs allege that Wells Fargo Bank, N.A., as trustee, caused losses to investors, and plaintiffs assert 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. The Company previously settled two class actions with similar allegations that were filed in November 2014 and December 2016 by institutional investors in the Southern District of New York and New York state court, respectively. In March 2021, the Company entered into an agreement to resolve the case filed by the NCUA. 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. 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 $2.8 billion as of June 30, 2021. 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. Based on information currently available, advice of counsel, available insurance coverage, and established reserves, Wells Fargo believes that the eventual outcome of the actions against Wells Fargo and/or its subsidiaries 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	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Note 14: 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 additional information on our derivative activities, see Note 16 (Derivatives) in our 2020 Form 10-K. Table 14.1 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 our consolidated 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 14.1: Notional or Contractual Amounts and Fair Values of Derivatives June 30, 2021 December 31, 2020 Notional or Fair value Notional or Fair value contractual Derivative Derivative contractual Derivative Derivative (in millions) amount assets liabilities amount assets liabilities Derivatives designated as hedging instruments Interest rate contracts $ 166,843 2,428 529 184,090 3,212 789 Foreign exchange contracts 39,001 1,143 504 47,331 1,381 607 Total derivatives designated as qualifying hedging instruments 3,571 1,033 4,593 1,396 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts 231,356 251 161 261,159 341 344 Equity contracts 27,740 1,582 392 25,997 1,363 490 Foreign exchange contracts 53,396 372 1,292 47,106 331 1,515 Credit contracts 72 26 — 73 31 — Subtotal 2,231 1,845 2,066 2,349 Customer accommodation trading and other derivatives: Interest rate contracts 9,256,224 24,068 18,785 7,947,941 32,510 25,169 Commodity contracts 76,612 7,234 2,309 65,790 2,036 1,543 Equity contracts 322,733 17,697 21,126 280,195 17,522 21,516 Foreign exchange contracts 415,458 6,177 4,505 412,879 6,891 6,034 Credit contracts 36,179 49 50 34,329 64 58 Subtotal 55,225 46,775 59,023 54,320 Total derivatives not designated as hedging instruments 57,456 48,620 61,089 56,669 Total derivatives before netting 61,027 49,653 65,682 58,065 Netting (35,612) (35,102) (39,836) (41,556) Total $ 25,415 14,551 25,846 16,509 Table 14.2 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 consolidated 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 consolidated balance sheet. The “Gross amounts recognized” column in the following table includes $52.9 billion and $44.7 billion of gross derivative assets and liabilities, respectively, at June 30, 2021, and $54.6 billion and $50.1 billion, respectively, at December 31, 2020, 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 $8.1 billion and $5.0 billion, respectively, at June 30, 2021, and $11.1 billion and $8.0 billion, respectively, at December 31, 2020, 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 consolidated balance sheet for these counterparties. Cash collateral receivables and payables that have not been offset against our derivatives were $2.6 billion and $828 million, respectively, at June 30, 2021, and $1.8 billion and $984 million, respectively, at December 31, 2020. 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 our consolidated 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 14.2 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. The proportion of these derivative contracts relative to our total derivative assets and liabilities are presented in the “Percent exchanged in over-the-counter market” column in Table 14.2. 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 12 (Pledged Assets and Collateral). Table 14.2: 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 June 30, 2021 Derivative assets Interest rate contracts $ 26,747 (16,711) 10,036 (680) 9,356 97 % Commodity contracts 7,234 (1,481) 5,753 (14) 5,739 92 Equity contracts 19,279 (11,488) 7,791 (766) 7,025 69 Foreign exchange contracts 7,692 (5,892) 1,800 (28) 1,772 100 Credit contracts 75 (40) 35 (1) 34 90 Total derivative assets $ 61,027 (35,612) 25,415 (1,489) 23,926 Derivative liabilities Interest rate contracts $ 19,475 (16,453) 3,022 (1,524) 1,498 96 % Commodity contracts 2,309 (1,086) 1,223 (17) 1,206 50 Equity contracts 21,518 (12,956) 8,562 (749) 7,813 79 Foreign exchange contracts 6,301 (4,574) 1,727 (423) 1,304 100 Credit contracts 50 (33) 17 (3) 14 90 Total derivative liabilities $ 49,653 (35,102) 14,551 (2,716) 11,835 December 31, 2020 Derivative assets Interest rate contracts $ 36,063 (21,968) 14,095 (1,274) 12,821 96 % Commodity contracts 2,036 (940) 1,096 (4) 1,092 84 Equity contracts 18,885 (10,968) 7,917 (737) 7,180 74 Foreign exchange contracts 8,603 (5,887) 2,716 (141) 2,575 100 Credit contracts 95 (73) 22 (1) 21 90 Total derivative assets $ 65,682 (39,836) 25,846 (2,157) 23,689 Derivative liabilities Interest rate contracts $ 26,302 (21,934) 4,368 (2,219) 2,149 95 % Commodity contracts 1,543 (819) 724 — 724 69 Equity contracts 22,006 (12,283) 9,723 (837) 8,886 78 Foreign exchange contracts 8,156 (6,481) 1,675 (529) 1,146 100 Credit contracts 58 (39) 19 (3) 16 91 Total derivative liabilities $ 58,065 (41,556) 16,509 (3,588) 12,921 (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 $299 million and $399 million and debit valuation adjustments related to derivative liabilities were $145 million and $201 million as of June 30, 2021, and December 31, 2020, respectively. Cash collateral totaled $5.4 billion and $5.1 billion, netted against derivative assets and liabilities, respectively, at June 30, 2021, and $5.5 billion and $7.5 billion, respectively, at December 31, 2020. 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. For certain fair value hedges of foreign currency risk, changes in fair value of cross-currency swaps attributable to changes in cross-currency basis spreads are excluded from the assessment of hedge effectiveness and recorded in other comprehensive income. See Note 21 (Other Comprehensive Income) for the amounts recognized in other comprehensive income. 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 $76 million pre-tax of deferred net losses related to cash flow hedges in OCI at June 30, 2021, 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 June 30, 2021, we are hedging our foreign currency exposure to the variability of future cash flows for all forecasted transactions for a maximum of 9 years. For additional information on our accounting hedges, see Note 1 (Summary of Significant Accounting Policies). Table 14.3 and Table 14.4 show the net gains (losses) related to derivatives in fair value and cash flow hedging relationships, respectively. Table 14.3: 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 Deposits Long-term debt Other Derivative gains (losses) Derivative gains (losses) Quarter ended June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 2,199 (92) (712) 692 N/A 37 Interest contracts Amounts related to interest settlements on derivatives (68) 74 541 — 547 Recognized on derivatives (468) (61) 2,453 — 1,924 — Recognized on hedged items 452 62 (2,402) — (1,888) Total gains (losses) (pre-tax) on interest rate contracts (84) 75 592 — 583 — Foreign exchange contracts Amounts related to interest settlements on derivatives 15 — 4 — 19 Recognized on derivatives 2 — (42) 202 162 (14) Recognized on hedged items (1) — 44 (203) (160) Total gains (losses) (pre-tax) on foreign exchange contracts 16 — 6 (1) 21 (14) Total gains (losses) (pre-tax) recognized on fair value hedges $ (68) 75 598 (1) 604 (14) Quarter ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 2,946 (585) (1,237) 912 N/A 3 Interest contracts Amounts related to interest settlements on derivatives (93) 152 428 — 487 Recognized on derivatives (21) (86) 549 — 442 — Recognized on hedged items 63 77 (618) — (478) Total gains (losses) (pre-tax) on interest rate contracts (51) 143 359 — 451 — Foreign exchange contracts Amounts related to interest settlements on derivatives 11 — (46) — (35) Recognized on derivatives (1) — 117 709 825 (57) Recognized on hedged items 1 — (70) (684) (753) Total gains (losses) (pre-tax) on foreign exchange contracts 11 — 1 25 37 (57) Total gains (losses) (pre-tax) recognized on fair value hedges $ (40) 143 360 25 488 (57) (continued on following page) (continued from previous page) Net interest income Noninterest income Total recorded in net income Total recorded in OCI (in millions) Debt securities Deposits Long-term debt Other Derivative gains (losses) Derivative gains (losses) Six months ended June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 4,511 (204) (1,738) 1,674 N/A 84 Interest contracts Amounts related to interest settlements on derivatives (135) 165 1,091 — 1,121 Recognized on derivatives 826 (184) (4,618) — (3,976) — Recognized on hedged items (806) 181 4,542 — 3,917 Total gains (losses) (pre-tax) on interest rate contracts (115) 162 1,015 — 1,062 — Foreign exchange contracts Amounts related to interest settlements on derivatives 43 — 3 — 46 Recognized on derivatives 3 — (269) 509 243 11 Recognized on hedged items (2) — 238 (520) (284) Total gains (losses) (pre-tax) on foreign exchange contracts 44 — (28) (11) 5 11 Total gains (losses) (pre-tax) recognized on fair value hedges $ (71) 162 987 (11) 1,067 11 Six months ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 6,418 (2,327) (2,477) 2,213 N/A 185 Interest contracts Amounts related to interest settlements on derivatives (139) 222 602 — 685 Recognized on derivatives (1,892) 444 10,324 — 8,876 — Recognized on hedged items 1,919 (434) (10,044) — (8,559) Total gains (losses) (pre-tax) on interest rate contracts (112) 232 882 — 1,002 — Foreign exchange contracts Amounts related to interest settlements on derivatives 17 — (131) — (114) Recognized on derivatives (2) — 224 (76) 146 87 Recognized on hedged items 3 — (244) 80 (161) Total gains (losses) (pre-tax) on foreign exchange contracts 18 — (151) 4 (129) 87 Total gains (losses) (pre-tax) recognized on fair value hedges $ (94) 232 731 4 873 87 Table 14.4: 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 June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 7,095 (712) N/A 37 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (39) — (39) 39 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A 10 Total gains (losses) (pre-tax) on interest rate contracts (39) — (39) 49 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 1 Total gains (losses) (pre-tax) on foreign exchange contracts — (1) (1) 2 Total gains (losses) (pre-tax) recognized on cash flow hedges $ (39) (1) (40) 51 Quarter ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 8,460 (1,237) N/A 3 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (53) 1 (52) 52 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (53) 1 (52) 52 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (3) (3) 3 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A 5 Total gains (losses) (pre-tax) on foreign exchange contracts — (3) (3) 8 Total gains (losses) (pre-tax) recognized on cash flow hedges $ (53) (2) (55) 60 Six months ended June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 14,296 (1,738) N/A 84 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (91) — (91) 91 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (10) Total gains (losses) (pre-tax) on interest rate contracts (91) — (91) 81 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 (10) Total gains (losses) (pre-tax) on foreign exchange contracts — (2) (2) (8) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (91) (2) (93) 73 Six months ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 18,543 (2,477) N/A 185 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (109) 1 (108) 108 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (109) 1 (108) 108 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (5) (5) 5 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (15) Total gains (losses) (pre-tax) on foreign exchange contracts — (5) (5) (10) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (109) (4) (113) 98 Table 14.5 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 14.5: 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 June 30, 2021 Available-for-sale debt securities (5) $ 28,655 (35) 16,792 994 Deposits (14,206) (295) — — Long-term debt (148,673) (7,312) (5,248) 2 December 31, 2020 Available-for-sale debt securities (5) $ 29,538 827 17,091 1,111 Deposits (22,384) (477) — — Long-term debt (156,907) (12,466) (14,468) 31 (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 for debt securities is $12.0 billion and for long-term debt is $(2.8) billion as of June 30, 2021, and $17.6 billion for debt securities and $(4.7) billion for long-term debt as of December 31, 2020. (3) The balance includes $188 million and $160 million of debt securities and long-term debt cumulative basis adjustments as of June 30, 2021, respectively, and $205 million and $130 million of debt securities and long-term debt cumulative basis adjustments as of December 31, 2020, respectively, 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. In second quarter 2020, we entered into arrangements to transition the economic hedges of our deferred compensation plan liabilities from equity securities to derivative instruments. Changes in the fair values of derivatives used to economically hedge the deferred compensation plan are reported in personnel expense. For additional information on economic hedges and other derivatives, see Note 14 (Derivatives) to Financial Statements in our 2020 Form 10-K. Table 14.6 shows the net gains (losses), recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 14.6: Gains (Losses) on Derivatives Not Designated as Hedging Instruments Noninterest income Noninterest expense (in millions) Mortgage banking Net gains (losses) on trading and securities Other Total Personnel expense Quarter ended June 30, 2021 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 287 — 14 301 — Equity contracts — (762) (4) (766) (239) Foreign exchange contracts — — (90) (90) — Credit contracts — — (5) (5) — Subtotal 287 (762) (85) (560) (239) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 482 (594) — (112) — Commodity contracts — (36) — (36) — Equity contracts — (922) (304) (1,226) — Foreign exchange contracts — (24) — (24) — Credit contracts — (43) — (43) — Subtotal 482 (1,619) (304) (1,441) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 769 (2,381) (389) (2,001) (239) Quarter ended June 30, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 142 — (74) 68 — Equity contracts — (1,402) (6) (1,408) (141) Foreign exchange contracts — — (55) (55) — Credit contracts — — 1 1 — Subtotal 142 (1,402) (134) (1,394) (141) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 546 676 — 1,222 — Commodity contracts — (224) — (224) — Equity contracts — (2,348) (145) (2,493) — Foreign exchange contracts — 155 — 155 — Credit contracts — (134) — (134) — Subtotal 546 (1,875) (145) (1,474) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 688 (3,277) (279) (2,868) (141) (continued on following page) (continued from previous page) Noninterest income Noninterest expense (in millions) Mortgage banking Net gains (losses) on trading and securities Other Total Personnel expense Six months ended June 30, 2021 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (88) — (6) (94) — Equity contracts — (337) 1 (336) (399) Foreign exchange contracts — — (19) (19) — Credit contracts — — (5) (5) — Subtotal (88) (337) (29) (454) (399) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (49) 1,330 — 1,281 — Commodity contracts — 44 — 44 — Equity contracts — (2,085) (393) (2,478) — Foreign exchange contracts — 440 — 440 — Credit contracts — (71) — (71) — Subtotal (49) (342) (393) (784) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ (137) (679) (422) (1,238) (399) Six months ended June 30, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,613 — (45) 2,568 — Equity contracts — (183) (34) (217) (141) Foreign exchange contracts — — 572 572 — Credit contracts — — 17 17 — Subtotal 2,613 (183) 510 2,940 (141) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 1,099 (1,787) — (688) — Commodity contracts — (112) — (112) — Equity contracts — 2,401 (72) 2,329 — Foreign exchange contracts — (402) — (402) — Credit contracts — 147 — 147 — Subtotal 1,099 247 (72) 1,274 — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 3,712 64 438 4,214 (141) (1) Mortgage banking amounts for the second quarter and first half of 2021 are comprised of gains (losses) of $707 million and $(933) million, respectively, related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $(420) million and $845 million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. The corresponding amounts for the second quarter and first half of 2020 are comprised of gains (losses) of $535 million and $3.9 billion offset by gains (losses) of $(393) million and $(1.3) billion, 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 sold credit derivatives. We would be required to perform under the 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 14.7 provides details of sold and purchased credit derivatives. Table 14.7: 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 June 30, 2021 Credit default swaps on: Corporate bonds $ 5 3 4,724 1,236 3,130 1,594 3,582 2021 - 2031 Structured products — 4 16 16 12 4 82 2034 - 2047 Credit protection on: Default swap index 1 — 1,760 698 924 836 3,765 2021 - 2030 Commercial mortgage-backed securities index 2 15 283 29 258 25 134 2047 - 2072 Asset-backed securities index — 7 41 41 40 1 1 2045 - 2046 Other — 2 6,300 6,206 — 6,300 11,199 2021 - 2040 Total credit derivatives $ 8 31 13,124 8,226 4,364 8,760 18,763 December 31, 2020 Credit default swaps on: Corporate bonds $ 7 2 3,767 971 2,709 1,058 3,012 2021 - 2029 Structured products — 5 20 20 19 1 84 2034 - 2047 Credit protection on: Default swap index — — 1,582 731 559 1,023 3,925 2021 - 2030 Commercial mortgage-backed securities index 3 21 297 42 272 25 75 2047 - 2072 Asset-backed securities index — 7 41 41 40 1 1 2045 - 2046 Other — 4 6,378 6,262 — 6,378 11,621 2021 - 2040 Total credit derivatives $ 10 39 12,085 8,067 3,599 8,486 18,718 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 14.8 illustrates our exposure to OTC bilateral derivative contracts 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 14.8: Credit-Risk Contingent Features (in billions) Jun 30, Dec 31, Net derivative liabilities with credit-risk contingent features $ 10.4 10.5 Collateral posted 9.4 9.0 Additional collateral to be posted upon a below investment grade credit rating (1) 1.0 1.5 (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	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Note 15: 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, such as derivatives, residential MSRs, and trading or AFS debt securities, are presented in Table 15.1 in this Note. Additionally, from time to time, we record fair value adjustments on a nonrecurring basis. These nonrecurring adjustments typically involve application of lower of cost or fair value (LOCOM) accounting, write-downs of individual assets or application of the measurement alternative for nonmarketable equity securities. Assets recorded at fair value on a nonrecurring basis are presented in Table 15.4 in this Note. We provide in Table 15.8 estimates of fair value for financial instruments that are not recorded at fair value, such as loans and debt liabilities carried at amortized cost. See Note 1 (Summary of Significant Accounting Policies) in our 2020 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, see Note 17 (Fair Values of Assets and Liabilities) in our 2020 Form 10-K. FAIR VALUE HIERARCHY We classify our assets and liabilities recorded at fair value as either Level 1, 2, or 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 2020 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. This determination is ultimately based upon the specific facts and circumstances of each instrument or instrument category and judgments are made regarding the significance of the unobservable inputs to the instruments’ fair value measurement in its entirety. If unobservable inputs are considered significant, the instrument is classified as Level 3. We do not classify nonmarketable equity securities in the fair value hierarchy if we use the non-published net asset value (NAV) per share (or its equivalent) as a practical expedient to measure fair value. Marketable equity securities with published NAVs are classified in the fair value hierarchy. Assets and Liabilities Recorded at Fair Value on a Recurring Basis Table 15.1 presents the balances of assets and liabilities recorded at fair value on a recurring basis. Table 15.1: Fair Value on a Recurring Basis June 30, 2021 December 31, 2020 (in millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Trading debt securities: Securities of U.S. Treasury and federal agencies $ 29,497 2,207 — 31,704 $ 32,060 3,197 — 35,257 Collateralized loan obligations — 469 158 627 — 534 148 682 Corporate debt securities — 12,062 11 12,073 — 10,696 13 10,709 Federal agency mortgage-backed securities — 33,105 — 33,105 — 23,549 — 23,549 Non-agency mortgage-backed securities — 1,275 22 1,297 — 1,039 12 1,051 Other debt securities — 3,920 1 3,921 — 3,847 — 3,847 Total trading debt securities 29,497 53,038 192 82,727 32,060 42,862 173 75,095 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 35,905 — — 35,905 22,159 — — 22,159 Non-U.S. government securities — 11,201 — 11,201 — 16,813 — 16,813 Securities of U.S. states and political subdivisions — 19,377 122 19,499 — 19,182 224 19,406 Federal agency mortgage-backed securities — 96,534 — 96,534 — 139,070 — 139,070 Non-agency mortgage-backed securities — 4,347 31 4,378 — 3,697 32 3,729 Collateralized loan obligations — 12,407 — 12,407 — 9,018 — 9,018 Other debt securities 37 7,284 2,652 9,973 38 7,421 2,738 10,197 Total available-for-sale debt securities 35,942 151,150 2,805 189,897 22,197 195,201 2,994 220,392 Loans held for sale — 17,825 1,069 18,894 — 17,572 1,234 18,806 Mortgage servicing rights (residential) — — 6,717 6,717 — — 6,125 6,125 Derivative assets (gross): Interest rate contracts 20 26,370 357 26,747 11 35,590 462 36,063 Commodity contracts — 7,139 95 7,234 — 1,997 39 2,036 Equity contracts 4,620 12,763 1,896 19,279 4,888 12,384 1,613 18,885 Foreign exchange contracts 21 7,664 7 7,692 19 8,573 11 8,603 Credit contracts — 36 39 75 — 45 50 95 Total derivative assets (gross) 4,661 53,972 2,394 61,027 4,918 58,589 2,175 65,682 Equity securities: Marketable 25,138 186 1 25,325 23,995 596 5 24,596 Nonmarketable (1) — 199 9,659 9,858 10 21 9,228 9,259 Total equity securities 25,138 385 9,660 35,183 24,005 617 9,233 33,855 Total assets prior to derivative netting $ 95,238 276,370 22,837 394,445 $ 83,180 314,841 21,934 419,955 Derivative netting (2) (35,612) (39,836) Total assets after derivative netting 358,833 380,119 Derivative liabilities (gross): Interest rate contracts $ (14) (19,418) (43) (19,475) $ (27) (26,259) (16) (26,302) Commodity contracts — (2,216) (93) (2,309) — (1,503) (40) (1,543) Equity contracts (4,108) (15,089) (2,321) (21,518) (4,860) (15,219) (1,927) (22,006) Foreign exchange contracts (14) (6,280) (7) (6,301) (10) (8,134) (12) (8,156) Credit contracts — (44) (6) (50) — (49) (9) (58) Total derivative liabilities (gross) (4,136) (43,047) (2,470) (49,653) (4,897) (51,164) (2,004) (58,065) Short-sale trading liabilities (15,579) (6,464) — (22,043) (15,292) (7,149) — (22,441) Total liabilities prior to derivative netting $ (19,715) (49,511) (2,470) (71,696) $ (20,189) (58,313) (2,004) (80,506) Derivative netting (2) 35,102 41,556 Total liabilities after derivative netting (36,594) (38,950) (1) Excludes $148 million and $154 million of nonmarketable equity securities as of June 30, 2021, and December 31, 2020, respectively, that are measured at fair value using non-published NAV per share (or its equivalent) as a practical expedient that are not classified in the fair value hierarchy. (2) Represents balance sheet netting of derivative asset and liability balances, related cash collateral and portfolio level counterparty valuation adjustments. See Note 14 (Derivatives) for additional information. Level 3 Assets and Liabilities Recorded at Fair Value on a Recurring Basis Table 15.2 presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis. Table 15.2: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis Net unrealized gains (losses) (in millions) Balance, Net gains/(losses) (1) Purchases (2) Sales Settlements Transfers Transfers Balance, (5) Quarter ended June 30, 2021 Trading debt securities $ 192 4 123 (129) (5) 15 (8) 192 1 (6) Available-for-sale debt securities 3,142 28 9 — (120) 11 (265) 2,805 41 (6) Loans held for sale 1,166 15 131 (231) (107) 97 (2) 1,069 9 (7) Mortgage servicing rights (residential) (8) 7,536 (1,297) 485 (7) — — — 6,717 (809) (7) Net derivative assets and liabilities: Interest rate contracts 1 458 — — (145) — — 314 167 Equity contracts (429) (158) — — 120 (10) 52 (425) (130) Other derivative contracts 56 (67) 2 (1) 42 — 3 35 (16) Total derivative contracts (372) 233 2 (1) 17 (10) 55 (76) 21 (9) Equity securities 8,865 794 — — — 1 — 9,660 794 (6) Quarter ended June 30, 2020 Trading debt securities $ 389 33 186 (346) (5) 15 (49) 223 14 (6) Available-for-sale debt securities 2,412 21 5 (28) (100) 85 (297) 2,098 8 (6) Loans held for sale 3,176 (41) 94 (288) (64) 80 (2,199) 758 (32) (7) Mortgage servicing rights (residential) (8) 8,126 (1,768) 462 (1) — — — 6,819 (1,131) (7) Net derivative assets and liabilities: Interest rate contracts 685 460 — — (622) — — 523 291 Equity contracts 217 (277) — — 79 — 1 20 (387) Other derivative contracts (3) 7 2 (1) 12 18 — 35 47 Total derivative contracts 899 190 2 (1) (531) 18 1 578 (49) (9) Equity securities 6,754 1,414 — — — — (3) 8,165 1,414 (6) Six months ended June 30, 2021 Trading debt securities $ 173 20 292 (302) (5) 22 (8) 192 5 (6) Available-for-sale debt securities 2,994 21 24 — (188) 253 (299) 2,805 16 (6) Loans held for sale 1,234 (4) 260 (379) (217) 178 (3) 1,069 (5) (7) Mortgage servicing rights (residential) (8) 6,125 (291) 891 (8) — — — 6,717 782 (7) Net derivative assets and liabilities: Interest rate contracts 446 (83) — — (44) — (5) 314 109 Equity contracts (314) (326) — — 160 (37) 92 (425) (236) Other derivative contracts 39 (40) 2 (1) 32 — 3 35 4 Total derivative contracts 171 (449) 2 (1) 148 (37) 90 (76) (123) (9) Equity securities 9,233 429 — (5) — 3 — 9,660 429 (6) Six months ended June 30, 2020 Trading debt securities $ 223 (85) 476 (439) (15) 115 (52) 223 (69) (6) Available-for-sale debt securities 1,565 (121) 31 (33) (148) 1,172 (368) 2,098 (99) (6) Loans held for sale 1,214 (104) 960 (358) (162) 1,409 (2,201) 758 (34) (7) Mortgage servicing rights (residential) (8) 11,517 (5,589) 923 (33) 1 — — 6,819 (4,388) (7) Net derivative assets and liabilities: Interest rate contracts 214 1,204 — — (895) — — 523 374 Equity contracts (269) 153 — — 152 (10) (6) 20 48 Other derivative contracts (5) (48) 8 (4) 72 12 — 35 33 Total derivative contracts (60) 1,309 8 (4) (671) 2 (6) 578 455 (9) Equity securities 7,850 313 — — — 7 (5) 8,165 310 (6) (1) Includes net gains (losses) included in both net income and other comprehensive income. All amounts represent net gains (losses) included in net income except for $22 million and $36 million included in other comprehensive income from available-for-sale debt securities in the second quarter and first half of 2021, respectively. The corresponding amounts for the second quarter and first half of 2020 were $16 million and $(75) million, respectively. (2) Includes originations of mortgage servicing rights and loans held for sale. (3) All assets and liabilities transferred into Level 3 were previously classified within Level 2. (4) All assets and liabilities transferred out of Level 3 are classified as Level 2. (5) Includes net unrealized gains (losses) related to assets and liabilities held at period end included in both net income and other comprehensive income. All amounts represent net unrealized gains (losses) included in net income except for $38 million and $31 million included in other comprehensive income from available-for-sale debt securities in the second quarter and first half of 2021 , respectively. The corresponding amounts for the second quarter and first half of 2020 were $13 million and $(40) million, respectively. (6) Included in net gains on trading and securities in the consolidated statement of income. (7) Included in mortgage banking income in the consolidated statement of income. (8) For additional information on the changes in mortgage servicing rights, see Note 9 (Mortgage Banking Activities). (9) Included in mortgage banking income, net gains on trading and securities, and other noninterest income in the consolidated statement of income. Table 15.3 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of our Level 3 assets and liabilities measured at fair value on a recurring basis. The significant unobservable inputs for Level 3 assets inherent in the fair values obtained from third-party vendors are not included in the table, as the specific inputs applied are not provided by the vendor (for additional information on vendor-developed valuations, see Note 17 (Fair Values of Assets and Liabilities) in our 2020 Form 10-K). Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. Table 15.3: Valuation Techniques – Recurring Basis ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique Significant Range of Inputs Weighted June 30, 2021 Trading and available-for-sale debt securities $ 1,926 Discounted cash flow Discount rate 0.4 - 12.4 % 4.4 747 Vendor priced 193 Market comparable pricing Comparability adjustment (29.1) - 9.5 (6.6) 131 Market comparable pricing Multiples 0.4x - 12.1x 6.5x Loans held for sale 1,069 Discounted cash flow Default rate 0.0 - 35.7 % 1.5 Discount rate 1.1 - 12.5 4.6 Loss severity 0.0 - 32.9 15.8 Prepayment rate 6.9 - 17.6 12.9 Mortgage servicing rights (residential) 6,717 Discounted cash flow Cost to service per loan (1) $ 57 - 642 111 Discount rate 4.6 - 8.3 % 5.4 Prepayment rate (2) 14.2 - 21.4 17.2 Net derivative assets and (liabilities): Interest rate contracts 139 Discounted cash flow Default rate 0.0 - 6.0 1.9 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 18.5 Interest rate contracts: derivative loan commitments 175 Discounted cash flow Fall-out factor 1.0 - 99.0 20.2 Initial-value servicing (65.9) - 151.0 bps 89.9 Equity contracts 239 Discounted cash flow Conversion factor (9.3) - 0.0 % (9.0) Weighted average life 0.0 - 2.5 yrs 1.4 (664) Option model Correlation factor (77.0) - 99.0 % 17.5 Volatility factor 6.5 - 78.8 21.8 Nonmarketable equity securities 9,659 Market comparable pricing Comparability adjustment (19.3) - (5.5) (15.6) Insignificant Level 3 assets, net of liabilities 36 Total Level 3 assets, net of liabilities $ 20,367 (3) December 31, 2020 Trading and available-for-sale debt securities $ 2,126 Discounted cash flow Discount rate 0.4 - 14.7 % 3.6 759 Vendor priced 173 Market comparable pricing Comparability adjustment (39.8) - 0.3 (8.4) 109 Market comparable pricing Multiples 7.2x - 12.1x 8.0x Loans held for sale 1,234 Discounted cash flow Default rate 0.0 - 31.6 % 1.7 Discount rate 1.3 - 12.0 4.5 Loss severity 0.0 - 32.3 18.4 Prepayment rate 8.3 - 23.6 15.1 Mortgage servicing rights (residential) 6,125 Discounted cash flow Cost to service per loan (1) $ 63 - 712 130 Discount rate 4.9 - 8.3 % 5.8 Prepayment rate (2) 14.3 - 22.8 19.9 Net derivative assets and (liabilities): Interest rate contracts 206 Discounted cash flow Default rate 0.0 - 6.0 1.7 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 18.2 Interest rate contracts: derivative loan 240 Discounted cash flow Fall-out factor 1.0 - 99.0 28.8 Initial-value servicing (51.6) - 268.0 bps 65.5 Equity contracts 220 Discounted cash flow Conversion factor (8.6) - 0.0 % (8.2) Weighted average life 0.5 - 2.0 yrs 1.0 (534) Option model Correlation factor (77.0) - 99.0 % 24.8 Volatility factor 6.5 - 96.6 26.4 Nonmarketable equity securities 9,228 Market comparable pricing Comparability adjustment (20.3) - (3.2) (13.8) Insignificant Level 3 assets, net of liabilities 44 Total Level 3 assets, net of liabilities $ 19,930 (3) (1) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $57 - $239 at June 30, 2021, and $63 - $252 at December 31, 2020. (2) 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. (3) Consists of total Level 3 assets of $22.8 billion and $21.9 billion and total Level 3 liabilities of $2.5 billion and $2.0 billion, before netting of derivative balances, at June 30, 2021, and December 31, 2020, respectively. 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 application of the measurement alternative for nonmarketable equity securities. Table 15.4 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 June 30, 2021, and December 31, 2020, and for which a nonrecurring fair value adjustment was recorded during the six months ended June 30, 2021, and year ended December 31, 2020. Table 15.5 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 15.4: Fair Value on a Nonrecurring Basis June 30, 2021 December 31, 2020 (in millions) Level 2 Level 3 Total Level 2 Level 3 Total Loans held for sale (1) 2,956 1,439 4,395 2,672 2,945 5,617 Loans: Commercial 432 — 432 1,385 — 1,385 Consumer 221 — 221 395 — 395 Total loans 653 — 653 1,780 — 1,780 Mortgage servicing rights (commercial) — 567 567 — 510 510 Nonmarketable equity securities 3,882 85 3,967 2,397 790 3,187 Other assets 976 157 1,133 1,350 428 1,778 Total assets at fair value on a nonrecurring basis $ 8,467 2,248 10,715 8,199 4,673 12,872 (1) Predominantly consists of commercial mortgages and residential mortgage – first lien loans. Nonmarketable equity securities includes impairment on private equity and venture capital investments and gains or losses under the measurement alternative. Other assets includes impairments of operating lease ROU assets, valuation losses on foreclosed real estate and other collateral owned, and impairment on private equity and venture capital investments in consolidated portfolio companies. Table 15.5: Change in Value of Assets with Nonrecurring Fair Value Adjustment Six months ended June 30, (in millions) 2021 2020 Loans held for sale $ 38 (77) Loans: Commercial (182) (392) Consumer (90) (128) Total loans (272) (520) Mortgage servicing rights (commercial) 31 (30) Nonmarketable equity securities 2,215 (410) Other assets (56) (394) Total $ 1,956 (1,431) Table 15.6 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of our Level 3 assets that are measured at fair value on a nonrecurring basis and determined using an internal model. The table is limited to financial instruments that had nonrecurring fair value adjustments during the periods presented. Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans, and carrying value prior to the nonrecurring fair value measurement for nonmarketable equity securities. Table 15.6: Valuation Techniques – Nonrecurring Basis ($ in millions) Fair Value Valuation Technique (1) Significant Range of Inputs Weighted June 30, 2021 Loans held for sale (2) $ 1,269 Discounted cash flow Default rate (3) 0.8 - 80.2 % 30.3 Discount rate 0.6 - 12.6 3.1 Loss severity 0.3 - 51.0 5.9 Prepayment rate (4) 4.2 - 100.0 41.3 170 Market comparable pricing Comparability adjustment (5.9) - (1.4) (5.0) Mortgage servicing rights (commercial) 567 Discounted cash flow Cost to service per loan $ 150 - 3,381 2,773 Discount rate 4.0 - 4.2 % 4.0 Prepayment rate 0.0 - 20.6 5.5 Nonmarketable equity securities 15 Market comparable pricing Multiples 2.0x - 3.3x 2.8x 65 Market comparable pricing Comparability Adjustment (100.0) - (5.3) % (50.0) 5 Discounted cash flow Discount rate 10.5 - 10.5 10.5 Other assets 157 Discounted cash flow Discount rate 0.3 - 4.4 2.9 Total $ 2,248 December 31, 2020 Loans held for sale (2) $ 1,628 Discounted cash flow Default rate (3) 0.3 - 85.5 % 31.5 Discount rate 0.6 - 11.9 3.0 Loss severity 0.4 - 45.0 8.1 Prepayment rate (4) 8.3 - 100.0 42.5 1,317 Market comparable pricing Comparability adjustment (11.6) - (1.8) (3.1) Mortgage servicing rights (commercial) 510 Discounted cash flow Cost to service per loan $ 150 - 3,377 2,779 Discount rate 1.9 - 1.9 % 1.9 Prepayment rate 0.0 - 20.0 5.4 Nonmarketable equity securities (5) 844 Market comparable pricing Multiples 0.1x - 10.9x 5.0x 188 Market comparable pricing Comparability adjustment (100.0) - (20.0) % (61.4) 76 Other Company risk factor (100.0) - (20.0) (57.7) 91 Discounted cash flow Discount rate 10.0 - 20.0 11.5 Company risk factor (62.6) - 0.0 (30.3) Crude oil prices ($/barrel) $ 42 - 48 47 Natural gas prices ($/MMBtu) 2 - 2 2 Insignificant Level 3 assets 19 Total $ 4,673 (1) See Note 17 (Fair Values of Assets and Liabilities) in our 2020 Form 10-K for additional information on the valuation technique(s) and significant unobservable inputs used in the valuation of Level 3 assets. (2) Consists of approximately $1.2 billion and $2.6 billion of government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitizations at June 30, 2021, and December 31, 2020, respectively, and approximately $200 million and $300 million of other mortgage loans that are not government insured/guaranteed at June 30, 2021, and December 31, 2020. (3) Applies only to non-government insured/guaranteed loans. (4) 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. (5) Includes $417 million of private equity and venture capital investments in consolidated portfolio companies classified in other assets on the consolidated balance sheet at December 31, 2020. Fair Value Option The fair value option is an irrevocable election, generally only permitted upon initial recognition of financial assets or liabilities, to measure eligible financial instruments at fair value with changes in fair value reflected in earnings. We may elect the fair value option to align the measurement model with how the financial assets or liabilities are managed or to reduce complexity or accounting asymmetry. Following is a discussion of the portfolios for which we elected the fair value option. For additional information, including the basis for our fair value option elections, see Note 17 (Fair Values of Assets and Liabilities) in our 2020 Form 10-K. Table 15.7 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. Nonaccrual loans and loans 90 days or more past due and still accruing included in LHFS for which we have elected the fair value option were insignificant at June 30, 2021, and December 31, 2020. Table 15.7: Fair Value Option June 30, 2021 December 31, 2020 (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 Loans held for sale $ 18,894 18,526 368 18,806 18,217 589 Disclosures about Fair Value of Financial Instruments Table 15.8 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 the scope of this table, such as certain insurance contracts, certain nonmarketable equity securities, 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 15.8. 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 $1.4 billion and at both June 30, 2021, and December 31, 2020, respectively. The total of the fair value calculations presented does not represent, and should not be construed to represent, the underlying fair value of the Company. Table 15.8: Fair Value Estimates for Financial Instruments Estimated fair value (in millions) Carrying amount Level 1 Level 2 Level 3 Total June 30, 2021 Financial assets Cash and due from banks (1) $ 25,304 25,304 — — 25,304 Interest-earning deposits with banks (1) 248,869 248,686 183 — 248,869 Federal funds sold and securities purchased under resale agreements (1) 70,149 — 70,149 — 70,149 Held-to-maturity debt securities 260,941 28,028 235,075 984 264,087 Loans held for sale 6,700 — 5,259 1,669 6,928 Loans, net (2) 821,774 — 59,140 781,652 840,792 Nonmarketable equity securities (cost method) 3,585 — — 3,647 3,647 Total financial assets $ 1,437,322 302,018 369,806 787,952 1,459,776 Financial liabilities Deposits (3) $ 35,964 — 18,823 17,368 36,191 Short-term borrowings 45,635 — 45,635 — 45,635 Long-term debt (4) 179,625 — 186,681 1,282 187,963 Total financial liabilities $ 261,224 — 251,139 18,650 269,789 December 31, 2020 Financial assets Cash and due from banks (1) $ 28,236 28,236 — — 28,236 Interest-earning deposits with banks (1) 236,376 236,258 118 — 236,376 Federal funds sold and securities purchased under resale agreements (1) 65,672 — 65,672 — 65,672 Held-to-maturity debt securities 205,720 48,597 162,777 933 212,307 Loans held for sale 17,578 — 14,952 3,419 18,371 Loans, net (2) 853,595 — 56,270 817,827 874,097 Nonmarketable equity securities (cost method) 3,588 — — 3,632 3,632 Total financial assets $ 1,410,765 313,091 299,789 825,811 1,438,691 Financial liabilities Deposits (3) $ 52,807 — 33,321 19,940 53,261 Short-term borrowings 58,999 — 58,999 — 58,999 Long-term debt (4) 212,922 — 219,321 1,381 220,702 Total financial liabilities $ 324,728 — 311,641 21,321 332,962 (1) Amounts consist of financial instruments for which carrying value approximates fair value. (2) Excludes lease financing with a carrying amount of $15.2 billion and $15.4 billion at June 30, 2021, and December 31, 2020, respectively. (3) Excludes deposit liabilities with no defined or contractual maturity of $1.4 trillion at both June 30, 2021, and December 31, 2020, respectively. (4) Excludes capital lease obligations under capital leases of $28 million at both June 30, 2021, and December 31, 2020, respectively.

Preferred Stock

Preferred Stock	6 Months Ended
	Jun. 30, 2021
Preferred Stock [Abstract]
Preferred Stock	Note 16: 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. In January 2021, we issued $3.5 billion of our Preferred Stock, Series BB, and in February 2021, we issued $1.05 billion of our Preferred Stock, Series CC. In March 2021, we redeemed our Preferred Stock Series I, Series P and Series W, and partially redeemed our Preferred Stock, Series N, for an aggregate cost of $4.5 billion. In June 2021, we redeemed the remaining outstanding shares of our Preferred Stock, Series N, for a cost of $350 million. In July 2021, we issued $1.25 billion of our Preferred Stock, Series DD. Table 16.1: Preferred Stock Shares June 30, 2021 December 31, 2020 Liquidation Shares Liquidation Shares DEP Shares Dividend Equalization Preferred Shares (DEP) $ 10 97,000 $ 10 97,000 Series I (1) Floating Class A Preferred Stock — — 100,000 25,010 Series L (2) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 1,000 4,025,000 1,000 4,025,000 Series N (3) 5.20% Non-Cumulative Perpetual Class A Preferred Stock — — 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 (3) 5.25% Non-Cumulative Perpetual Class A Preferred Stock — — 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 U 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,000 25,000 80,000 Series W (3) 5.70% Non-Cumulative Perpetual Class A Preferred Stock — — 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 4.75% Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,500 25,000 80,500 Series AA 4.70% Non-Cumulative Perpetual Class A Preferred Stock 25,000 46,800 25,000 46,800 Series BB 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock 25,000 140,400 — — Series CC 4.375% Non-Cumulative Perpetual Class A Preferred Stock 25,000 46,000 — — ESOP (4) Cumulative Convertible Preferred Stock — 822,242 — 822,242 Total 5,622,642 5,557,652 (1) Series I preferred stock issuance relates to trust preferred securities. See Note 8 (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%. In first quarter 2021, Preferred Stock, Series I, was redeemed. (2) 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. (3) In first quarter 2021, 16,000 shares of Preferred Stock, Series N, were redeemed and Preferred Stock, Series P and Series W were fully redeemed; in second quarter 2021, the remaining 14,000 shares of Preferred Stock, Series N, were redeemed. (4) See the “ESOP Cumulative Convertible Preferred Stock” section in this Note for additional information about the liquidation preference for the ESOP Cumulative Convertible Preferred Stock. Table 16.2: Preferred Stock – Shares Issued and Carrying Value June 30, 2021 December 31, 2020 (in millions, except shares) Shares issued and outstanding Liquidation preference value Carrying Discount Shares 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 — Series L (2) 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 (3) 5.20% Non-Cumulative Perpetual Class A Preferred Stock — — — — 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 (3) 5.25% Non-Cumulative Perpetual Class A Preferred Stock — — — — 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 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 W (3) 5.70% Non-Cumulative Perpetual Class A Preferred Stock — — — — 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 — 80,500 2,013 2,013 — Series AA 4.70% Non-Cumulative Perpetual Class A Preferred Stock 46,800 1,170 1,170 — 46,800 1,170 1,170 — Series BB 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock 140,400 3,510 3,510 — — — — — Series CC 4.375% Non-Cumulative Perpetual Class A Preferred Stock 42,000 1,050 1,050 — — — — — ESOP (4) Cumulative Convertible Preferred Stock 822,242 822 822 — 822,242 822 822 — Total 5,558,683 $ 21,588 20,820 768 5,496,293 $ 21,904 21,136 768 (1) Floating rate for Preferred Stock, Series I, is the greater of three-month London Interbank Offered Rate (LIBOR) plus 0.93% and 5.56975%. In first quarter 2021, Preferred Stock, Series I, was redeemed. (2) 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. (3) In first quarter 2021, $400 million of Preferred Stock, Series N, was redeemed and Preferred Stock, Series P and Series W were fully redeemed; in second quarter 2021, the remaining $350 million of Preferred Stock, Series N, was redeemed. (4) See the “ESOP Cumulative Convertible Preferred Stock” section in this Note for additional information about the liquidation preference for the ESOP Cumulative Convertible Preferred Stock. 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 16.3: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Jun 30, Dec 31, Jun 30, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 221,945 221,945 $ 222 222 7.00 % 8.00 % 2017 163,210 163,210 163 163 7.00 8.00 2016 162,450 162,450 162 162 9.30 10.30 2015 92,904 92,904 93 93 8.90 9.90 2014 99,151 99,151 99 99 8.70 9.70 2013 61,948 61,948 62 62 8.50 9.50 2012 20,634 20,634 21 21 10.00 11.00 Total ESOP Preferred Stock (1) 822,242 822,242 $ 822 822 Unearned ESOP shares (2) $ (875) (875) (1) At both June 30, 2021, and December 31, 2020, additional paid-in capital included $53 million 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	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Note 17: Revenue from Contracts with Customers Our revenue includes net interest income on financial instruments and noninterest income. Table 17.1 presents our revenue by operating segment. For additional description of our operating segments, including additional financial information and the underlying management accounting process, see Note 22 (Operating Segments). Table 17.1: Revenue by Operating Segment (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Consolidated Quarter ended June 30, 2021 Net interest income (2) $ 5,618 1,202 1,783 610 (304) (109) 8,800 Noninterest income: Deposit-related fees 732 325 277 7 1 — 1,342 Lending-related fees (2) 36 135 190 2 (1) — 362 Investment advisory and other asset-based fees (3) — 2 12 2,382 398 — 2,794 Commissions and brokerage services fees — — 68 513 (1) — 580 Investment banking fees (2) 9 580 (1) (16) — 570 Card fees: Card interchange and network revenues (4) 896 49 11 1 — — 957 Other card fees (2) 121 — — — (1) — 120 Total card fees 1,017 49 11 1 (1) — 1,077 Mortgage banking (2) 1,158 — 181 (3) — — 1,336 Net gains (losses) from trading activities (2) — (1) 30 6 (14) — 21 Net gains on debt securities (2) — — — — — — — Net gains from equity securities (2) — 32 46 6 2,612 — 2,696 Lease income (2) — 173 — — 140 — 313 Other (2) 127 182 160 13 209 (312) 379 Total noninterest income 3,068 906 1,555 2,926 3,327 (312) 11,470 Total revenue $ 8,686 2,108 3,338 3,536 3,023 (421) 20,270 Quarter ended June 30, 2020 Net interest income (2) $ 5,717 1,554 1,963 719 60 (121) 9,892 Noninterest income: Deposit-related fees 575 297 261 6 3 — 1,142 Lending-related fees (2) 33 125 163 2 — — 323 Investment advisory and other asset-based fees (3) — 8 24 1,835 387 — 2,254 Commissions and brokerage services fees — — 79 470 1 — 550 Investment banking fees (1) 26 588 1 (67) — 547 Card fees: Card interchange and network revenues (4) 650 36 11 1 — — 698 Other card fees (2) 99 — — — — — 99 Total card fees 749 36 11 1 — — 797 Mortgage banking (2) 256 — 65 (3) (1) — 317 Net gains (losses) from trading activities (2) 1 1 809 9 (13) — 807 Net gains on debt securities (2) 6 — — — 206 — 212 Net gains (losses) from equity securities (2) — (28) 8 150 403 — 533 Lease income (2) — 189 5 — 141 — 335 Other (2) 272 143 83 16 258 (195) 577 Total noninterest income 1,891 797 2,096 2,487 1,318 (195) 8,394 Total revenue $ 7,608 2,351 4,059 3,206 1,378 (316) 18,286 Six months ended June 30, 2021 Net interest income (2) $ 11,233 2,456 3,562 1,267 (694) (216) 17,608 Noninterest income: Deposit-related fees 1,393 642 543 14 5 — 2,597 Lending-related fees (2) 76 271 373 4 (1) — 723 Investment advisory and other asset-based fees (3) — 7 34 4,688 821 — 5,550 Commissions and brokerage services fees — — 149 1,068 (1) — 1,216 Investment banking fees (8) 22 1,191 (2) (65) — 1,138 Card fees: Card interchange and network revenues (4) 1,674 94 21 2 — — 1,791 Other card fees (2) 235 — — — — — 235 Total card fees 1,909 94 21 2 — — 2,026 Mortgage banking (2) 2,417 — 251 (6) — — 2,662 Net gains (losses) from trading activities (2) 1 1 361 12 (6) — 369 Net gains on debt securities (2) — — — — 151 — 151 Net gains from equity securities (2) 34 45 121 6 2,882 — 3,088 Lease income (2) — 347 1 — 280 — 628 Other (2) 285 304 335 27 678 (583) 1,046 Total noninterest income 6,107 1,733 3,380 5,813 4,744 (583) 21,194 Total revenue $ 17,340 4,189 6,942 7,080 4,050 (799) 38,802 (continued on following page) (continued from previous page) (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Consolidated Six months ended June 30, 2020 Net interest income (2) $ 11,719 3,287 3,984 1,557 939 (264) 21,222 Noninterest income: Deposit-related fees 1,454 599 518 13 5 — 2,589 Lending-related fees (2) 81 253 335 4 — — 673 Investment advisory and other asset-based fees (3) — 16 40 3,908 796 — 4,760 Commissions and brokerage services fees — — 169 1,063 (5) — 1,227 Investment banking fees (2) 39 1,065 2 (166) — 938 Card fees: Card interchange and network revenues (4) 1,307 88 29 2 2 — 1,428 Other card fees (2) 261 — — — — — 261 Total card fees 1,568 88 29 2 2 — 1,689 Mortgage banking (2) 598 — 105 (6) (1) — 696 Net gains (losses) from trading activities (2) 1 (4) 844 8 22 — 871 Net gains on debt securities (2) 6 — — — 443 — 449 Net gains (losses) from equity securities (2) — (222) 124 (111) (659) — (868) Lease income (2) — 387 6 — 295 — 688 Other (2) 832 253 248 36 571 (415) 1,525 Total noninterest income 4,538 1,409 3,483 4,919 1,303 (415) 15,237 Total revenue $ 16,257 4,696 7,467 6,476 2,242 (679) 36,459 (1) Taxable-equivalent adjustments related to tax-exempt income on certain loans and debt securities are included in net interest income, while taxable-equivalent adjustments related to income tax credits for low-income housing and renewable energy investments are included in noninterest income, in each case with corresponding impacts to income tax expense (benefit). Adjustments are included in Corporate, Commercial Banking, and Corporate and Investment Banking and are eliminated to reconcile to the Company’s consolidated financial results. (2) 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. (3) We earned trailing commissions of $300 million and $598 million for the second quarter and first half of 2021, respectively, and $257 million and $532 million for the second quarter and first half of 2020, respectively. (4) The cost of credit card rewards and rebates of $373 million and $683 million for the second quarter and first half of 2021, respectively, and $266 million and $651 million for the second quarter and first half of 2020, respectively, are presented net against the related revenues. INVESTMENT ADVISORY AND OTHER ASSET-BASED FEES are earned for providing brokerage advisory, asset management and trust services. Fees from advisory account relationships with brokerage customers are charged based on a percentage of the market value of the client’s assets. Services and obligations related to providing investment advice, active management of client assets, and assistance with selecting and engaging a third-party advisory manager are generally satisfied over a month or quarter. Trailing commissions are earned for selling shares to investors and our obligation 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. Asset 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 satisfied 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; however, obligations for activities that are transitional in nature are satisfied at the time of the transaction. COMMISSIONS AND BROKERAGE SERVICES FEES are earned for providing brokerage services. Commissions from transactional accounts with brokerage customers 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. Fees earned from other brokerage services include securities clearance, 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. Our obligation is satisfied at the time we provide the service which is generally at the time of the transaction.

Employee Benefits

Employee Benefits	6 Months Ended
	Jun. 30, 2021
Retirement Benefits [Abstract]
Employee Benefits and Other Expenses	Note 18: Employee Benefits and Other Expenses Pension and Postretirement Plans We sponsor a frozen noncontributory qualified defined benefit retirement plan, the Wells Fargo & Company Cash Balance Plan (Cash Balance Plan), which covers eligible employees of Wells Fargo. The Cash Balance Plan was frozen on July 1, 2009, and no new benefits accrue after that date. For additional information on our pension and postretirement plans, including plan assumptions, investment strategy and asset allocation, projected benefit payments, and valuation methodologies used for assets measured at fair value, see Note 21 (Employee Benefits and Other Expenses) in our 2020 Form 10-K. We recognize settlement losses for our Cash Balance Plan based on an assessment of whether lump sum benefit payments will, in aggregate for the year, exceed the sum of its annual service and interest cost (threshold). Settlement losses of $62 million and $70 million were recognized during second quarter 2021 and 2020, respectively, representing the pro rata portion of the net loss in cumulative other comprehensive income based on the percentage reduction in the Cash Balance Plan’s projected benefit obligation attributable to lump sum benefit payments during the first half of both 2021 and 2020. As a result of the settlement losses, we re-measured the Cash Balance Plan obligation and plan assets as of both June 30, 2021 and 2020, and used a discount rate of 2.80% and 2.75%, respectively, based on our consistent methodology of determining our discount rate using a yield curve with maturity dates that closely match the estimated timing of the expected benefit payments. The result of the settlement losses and remeasurement increased the Cash Balance Plan asset by $347 million and other comprehensive income (pre-tax) by $409 million in second quarter 2021, and increased the Cash Balance Plan liability by $674 million and decreased other comprehensive income (pre-tax) by $604 million in second quarter 2020. Table 18.1 presents the components of net periodic benefit cost. Service cost is reported in personnel expense and all other components of net periodic benefit cost are reported in other noninterest expense on the consolidated statement of income. Table 18.1: Net Periodic Benefit Cost 2021 2020 Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Quarter ended June 30, Service cost $ 5 — — 4 — — Interest cost 71 3 3 86 4 4 Expected return on plan assets (154) — (4) (149) — (5) Amortization of net actuarial loss (gain) 38 3 (5) 35 3 (4) Amortization of prior service credit — — (3) — — (3) Settlement loss 62 — — 70 — — Net periodic benefit cost $ 22 6 (9) 46 7 (8) Six months ended June 30, Service cost $ 9 — — 7 — — Interest cost 142 6 6 172 8 8 Expected return on plan assets (306) — (9) (297) — (11) Amortization of net actuarial loss (gain) 75 7 (10) 71 7 (9) Amortization of prior service credit — — (5) — — (5) Settlement loss 62 2 — 70 3 — Net periodic benefit cost $ (18) 15 (18) 23 18 (17) Other Expenses Regulatory Charges and Assessments expense, which is included in other noninterest expense, was $192 million and $409 million in the second quarter and first half of 2021, respectively, compared with $211 million and $374 million in the same periods a year ago, and primarily consisted of Federal Deposit Insurance Corporation (FDIC) deposit assessment expense.

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jun. 30, 2021
Restructuring Costs [Abstract]
Restructuring Charges	Note 19: Restructuring Charges The Company began pursuing various initiatives to reduce expenses and create a more efficient and streamlined organization in third quarter 2020. Actions from these initiatives may include (i) reorganizing and simplifying business processes and structures to improve internal operations and the customer experience, (ii) reducing headcount, (iii) optimizing third-party spending, including for our technology infrastructure, and (iv) rationalizing our branch and administrative locations, which may include consolidations and closures. Restructuring charges are recorded as a component of noninterest expense on our consolidated statement of income. The following costs associated with these initiatives are included in restructuring charges. • Personnel costs – Severance costs associated with headcount reductions with payments made over time in accordance with our severance plan, as well as payments for other employee benefit costs such as incentive compensation. • Facility closure costs – Write-downs and acceleration of depreciation and amortization of owned or leased assets for branch and administrative locations, as well as related decommissioning costs. • Other – Impairment of other assets and costs associated with our technology infrastructure. Table 19.1 provides details on our restructuring charges. Table 19.1: Accruals for Restructuring Charges (in millions) Personnel costs Facility closure costs Other Total Quarter ended June 30, 2021 Balance, beginning of period $ 1,010 — 44 1,054 Restructuring charges 155 3 — 158 Payments and utilization (213) 4 (37) (246) Changes in estimates (1) (148) (7) (7) (162) Balance, end of period $ 804 — — 804 Six months ended June 30, 2021 Balance, beginning of period $ 1,170 — 44 1,214 Restructuring charges 285 18 — 303 Payments and utilization (370) (11) (38) (419) Changes in estimates (1) (281) (7) (6) (294) Balance, end of period $ 804 — — 804 Year ended December 31, 2020 Balance, beginning of year $ — — — — Restructuring charges 1,371 80 144 1,595 Payments and utilization (105) (80) (100) (285) Changes in estimates (1) (96) — — (96) Balance, end of year $ 1,170 — 44 1,214 (1) Represents reduction of expense for changes in previously estimated amounts based on refinements of assumptions.

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2021
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. Table 20.1: Earnings Per Common Share Calculations Quarter ended June 30, Six months ended June 30, (in millions, except per share amounts) 2021 2020 2021 2020 Wells Fargo net income (loss) (1) $ 6,040 $ (3,846) $ 10,676 (2,930) Less: Preferred stock dividends and other (2) 297 314 677 926 Wells Fargo net income (loss) applicable to common stock (numerator) (1) $ 5,743 (4,160) $ 9,999 (3,856) Earnings per common share Average common shares outstanding (denominator) 4,124.6 4,105.5 4,132.9 4,105.2 Per share $ 1.39 (1.01) $ 2.42 (0.94) Diluted earnings per common share Average common shares outstanding 4,124.6 4,105.5 4,132.9 4,105.2 Add: Restricted share rights (3) 31.5 — 31.7 — Diluted average common shares outstanding (denominator) 4,156.1 4,105.5 4,164.6 4,105.2 Per share $ 1.38 (1.01) $ 2.40 (0.94) (1) In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). (2) The quarter ended June 30, 2021, balance included $4 million, and the six months ended June 30, 2021 and 2020, includes $48 million and $272 million, respectively, from the elimination of discounts or issuance costs associated with redemptions of preferred stock. (3) Calculated using the treasury stock method. In the second quarter and first half of 2020, diluted average common shares outstanding equaled average common shares outstanding because our securities convertible into common shares had an anti-dilutive effect. Table 20.2 presents the outstanding securities 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 June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Convertible Preferred Stock, Series L (1) 25.3 25.3 25.3 25.3 Restricted share rights (2) 0.2 35.9 0.1 0.9 (1) Calculated using the if-converted method. (2) Calculated using the treasury stock method. Since we had net losses attributable to common shareholders for the second quarter and first half of 2020, all RSRs outstanding were anti-dilutive. Weighted average RSRs outstanding were 50.7 million and 54.7 million for the second quarter and first half of 2020, respectively. Table 20.3 presents dividends declared per common share. Table 20.3: Dividends Declared Per Common Share Quarter ended June 30, Six months ended June 30, 2021 2020 2021 2020 Per common share $ 0.10 $ 0.51 $ 0.20 1.02

Other Comprehensive Income

Other Comprehensive Income	6 Months Ended
	Jun. 30, 2021
Cumulative Other Comprehensive Income Balances [Abstract]
Other Comprehensive Income	Note 21: Other Comprehensive Income Table 21.1 provides the components of other comprehensive income (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 June 30, Six months ended June 30, 2021 2020 2021 2020 (in millions) Before Tax Net of Before Tax Net of Before Tax Net of Before Tax Net of Debt securities: Net unrealized gains (losses) arising during the period $ 272 (68) 204 1,596 (395) 1,201 (1,740) 432 (1,308) 1,486 (373) 1,113 Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 134 (33) 101 123 (31) 92 271 (67) 204 189 (47) 142 Net gains on debt securities — — — (212) 63 (149) (151) 35 (116) (449) 111 (338) Other noninterest income (2) 1 (1) (1) — (1) (2) 1 (1) (2) — (2) Subtotal reclassifications to net income 132 (32) 100 (90) 32 (58) 118 (31) 87 (262) 64 (198) Net change 404 (100) 304 1,506 (363) 1,143 (1,622) 401 (1,221) 1,224 (309) 915 Derivatives and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) (14) 3 (11) (57) 13 (44) 11 (3) 8 87 (22) 65 Cash Flow Hedges: Net unrealized gains (losses) arising during the period on cash flow hedges 11 (3) 8 5 (1) 4 (20) 5 (15) (15) 4 (11) Reclassification of net (gains) losses to net income: Interest income on loans 39 (10) 29 53 (12) 41 91 (23) 68 109 (26) 83 Interest expense on long-term debt 1 — 1 2 — 2 2 — 2 4 (1) 3 Subtotal reclassifications to net income 40 (10) 30 55 (12) 43 93 (23) 70 113 (27) 86 Net change 37 (10) 27 3 — 3 84 (21) 63 185 (45) 140 Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period 347 (85) 262 (674) 167 (507) 357 (88) 269 (671) 166 (505) Reclassification of amounts to noninterest expense (3): Amortization of net actuarial loss 36 (9) 27 34 (9) 25 72 (18) 54 69 (17) 52 Settlements and other 59 (14) 45 67 (16) 51 59 (13) 46 68 (16) 52 Subtotal reclassifications to noninterest expense 95 (23) 72 101 (25) 76 131 (31) 100 137 (33) 104 Net change 442 (108) 334 (573) 142 (431) 488 (119) 369 (534) 133 (401) Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period 23 (1) 22 51 — 51 36 (3) 33 (144) 2 (142) Net change 23 (1) 22 51 — 51 36 (3) 33 (144) 2 (142) Other comprehensive income (loss) $ 906 (219) 687 987 (221) 766 (1,014) 258 (756) 731 (219) 512 Less: Other comprehensive income (loss) from noncontrolling interests, net of tax 1 — 2 (1) Wells Fargo other comprehensive income (loss), net of tax $ 686 766 (758) 513 (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 hedge effectiveness and recorded in other comprehensive income. (3) These items are included in the computation of net periodic benefit cost (see Note 18 (Employee Benefits and Other Expenses) for additional information). Table 21.2 provides the cumulative OCI balance activity on an after-tax basis. Table 21.2: Cumulative OCI Balances (in millions) Debt Fair value hedges (1) Cash flow hedges (2) Defined benefit plans adjustments Foreign currency translation adjustments Cumulative other comprehensive income (loss) Quarter ended June 30, 2021 Balance, beginning of period $ 1,514 (185) (108) (2,369) (102) (1,250) Net unrealized gains (losses) arising during the period 204 (11) 8 262 22 485 Amounts reclassified from accumulated other comprehensive income 100 — 30 72 — 202 Net change 304 (11) 38 334 22 687 Less: Other comprehensive income from noncontrolling interests 1 — — — — 1 Balance, end of period $ 1,817 (196) (70) (2,035) (80) (564) Quarter ended June 30, 2020 Balance, beginning of period $ 1,324 (71) (270) (2,193) (354) (1,564) Net unrealized gains (losses) arising during the period 1,201 (44) 4 (507) 51 705 Amounts reclassified from accumulated other comprehensive income (58) — 43 76 — 61 Net change 1,143 (44) 47 (431) 51 766 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, end of period $ 2,467 (115) (223) (2,624) (303) (798) Six months ended June 30, 2021 Balance, beginning of period $ 3,039 (204) (125) (2,404) (112) 194 Net unrealized gains (losses) arising during the period (1,308) 8 (15) 269 33 (1,013) Amounts reclassified from accumulated other comprehensive income 87 — 70 100 — 257 Net change (1,221) 8 55 369 33 (756) Less: Other comprehensive income from noncontrolling interests 1 — — — 1 2 Balance, end of period $ 1,817 (196) (70) (2,035) (80) (564) Six months ended June 30, 2020 Balance, beginning of period $ 1,552 (180) (298) (2,223) (162) (1,311) Net unrealized gains (losses) arising during the period 1,113 65 (11) (505) (142) 520 Amounts reclassified from accumulated other comprehensive income (198) — 86 104 — (8) Net change 915 65 75 (401) (142) 512 Less: Other comprehensive loss from noncontrolling interests — — — — (1) (1) Balance, end of period $ 2,467 (115) (223) (2,624) (303) (798) (1) Substantially all of the amounts for fair value hedges are foreign exchange contracts.

Operating Segments

Operating Segments	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Operating Segments	Note 22: Operating Segments Our management reporting is organized into four reportable operating segments: Consumer Banking and Lending; Commercial Banking; Corporate and Investment Banking; and Wealth and Investment Management. All other business activities that are not included in the reportable operating segments have been included in Corporate. We define our reportable operating segments by type of product and customer segment, and their results are based on our management reporting process. The management reporting process measures the performance of the reportable operating segments based on the Company’s management structure, and the results are regularly reviewed by our Chief Executive Officer and Operating Committee. The management reporting process is based on U.S. GAAP and includes specific adjustments, such as funds transfer pricing for asset/liability management, shared revenues and expenses, and taxable-equivalent adjustments to consistently reflect income from taxable and tax-exempt sources, which allows management to assess performance consistently across the operating segments. In March 2021, we announced an agreement to sell our Corporate Trust Services business and, in second quarter 2021, we moved the business from the Commercial Banking operating segment to Corporate. Prior period balances have been revised to conform with the current period presentation. This change did not impact the previously reported consolidated financial results of the Company. In second quarter 2021, we elected to change our accounting method for low-income housing tax credit (LIHTC) investments and elected to change the presentation of investment tax credits related to solar energy investments. These accounting policy changes had a nominal impact on reportable operating segment results. Prior period financial statement line items for the Company, as well as for the reportable operating segments, have been revised to conform with the current period presentation. Our LIHTC investments are included in the Corporate and Investment Banking operating segment and our solar energy investments are included in the Commercial Banking operating segment. For additional information, see Note 1 (Summary of Significant Accounting Policies). Consumer Banking and Lending offers diversified financial products and services for consumers and small businesses with annual sales generally up to $5 million. These financial products and services include checking and savings accounts, credit and debit cards, as well as home, auto, personal, and small business lending. Commercial Banking provides financial solutions to private, family owned and certain public companies. Products and services include banking and credit products across multiple industry sectors and municipalities, secured lending and lease products, and treasury management. Corporate and Investment Banking delivers a suite of capital markets, banking, and financial products and services to corporate, commercial real estate, government and institutional clients globally. Products and services include corporate banking, investment banking, treasury management, commercial real estate lending and servicing, equity and fixed income solutions, as well as sales, trading, and research capabilities. Wealth and Investment Management provides personalized wealth management, investment and retirement products and services to clients across U.S.-based businesses including Wells Fargo Advisors and The Private Bank. We serve clients’ brokerage needs, and deliver financial planning, private banking, credit, and fiduciary services to high-net worth and ultra-high-net worth individuals and families. Corporate includes corporate treasury and enterprise functions, net of allocations (including funds transfer pricing, capital, liquidity and certain expenses), in support of the reportable operating segments, as well as our investment portfolio and affiliated venture capital and private equity businesses. In addition, Corporate includes all restructuring charges related to our efficiency initiatives. See Note 19 (Restructuring Charges) for additional information on restructuring charges. Corporate also includes certain lines of business that management has determined are no longer consistent with the long-term strategic goals of the Company, as well as results for previously divested businesses. Basis of Presentation FUNDS TRANSFER PRICING Corporate treasury manages a funds transfer pricing methodology that considers interest rate risk, liquidity risk, and other product characteristics. Operating segments pay a funding charge for their assets and receive a funding credit for their deposits, both of which are included in net interest income. The net impact of the funding charges or credits is recognized in corporate treasury. REVENUE AND EXPENSE SHARING When lines of business jointly serve customers, the line of business that is responsible for providing the product or service recognizes revenue or expense with a referral fee paid or an allocation of cost to the other line of business based on established internal revenue-sharing agreements. When a line of business uses a service provided by another line of business or enterprise function (included in Corporate), expense is generally allocated based on the cost and use of the service provided. TAXABLE-EQUIVALENT ADJUSTMENTS Taxable-equivalent adjustments related to tax-exempt income on certain loans and debt securities are included in net interest income, while taxable-equivalent adjustments related to income tax credits for low-income housing and renewable energy investments are included in noninterest income, in each case with corresponding impacts to income tax expense (benefit). Adjustments are included in Corporate, Commercial Banking, and Corporate and Investment Banking and are eliminated to reconcile to the Company’s consolidated financial results. Table 22.1 presents our results by operating segment. Table 22.1: Operating Segments (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Items (1) Consolidated Quarter ended June 30, 2021 Net interest income (2) $ 5,618 1,202 1,783 610 (304) (109) 8,800 Noninterest income 3,068 906 1,555 2,926 3,327 (312) 11,470 Total revenue 8,686 2,108 3,338 3,536 3,023 (421) 20,270 Provision for credit losses (367) (382) (501) 24 (34) — (1,260) Noninterest expense 6,202 1,443 1,805 2,891 1,000 — 13,341 Income (loss) before income tax expense (benefit) 2,851 1,047 2,034 621 2,057 (421) 8,189 Income tax expense (benefit) 713 261 513 156 223 (421) 1,445 Net income before noncontrolling interests 2,138 786 1,521 465 1,834 — 6,744 Less: Net income (loss) from noncontrolling interests — 2 (2) — 704 — 704 Net income $ 2,138 784 1,523 465 1,130 — 6,040 Quarter ended June 30, 2020 Net interest income (2) $ 5,717 1,554 1,963 719 60 (121) 9,892 Noninterest income 1,891 797 2,096 2,487 1,318 (195) 8,394 Total revenue 7,608 2,351 4,059 3,206 1,378 (316) 18,286 Provision for credit losses 3,102 2,295 3,756 255 126 — 9,534 Noninterest expense 6,933 1,580 2,044 2,743 1,251 — 14,551 Income (loss) before income tax expense (benefit) (2,427) (1,524) (1,741) 208 1 (316) (5,799) Income tax expense (benefit) (650) (379) (408) 52 (300) (316) (2,001) Net income (loss) before noncontrolling interests (1,777) (1,145) (1,333) 156 301 — (3,798) Less: Net income from noncontrolling interests — 1 — — 47 — 48 Net income (loss) $ (1,777) (1,146) (1,333) 156 254 — (3,846) Six months ended June 30, 2021 Net interest income (2) $ 11,233 2,456 3,562 1,267 (694) (216) 17,608 Noninterest income 6,107 1,733 3,380 5,813 4,744 (583) 21,194 Total revenue 17,340 4,189 6,942 7,080 4,050 (799) 38,802 Provision for credit losses (786) (781) (785) (19) 63 — (2,308) Noninterest expense 12,469 3,073 3,638 5,919 2,231 — 27,330 Income (loss) before income tax expense (benefit) 5,657 1,897 4,089 1,180 1,756 (799) 13,780 Income tax expense (benefit) 1,415 473 1,013 296 (52) (799) 2,346 Net income before noncontrolling interests 4,242 1,424 3,076 884 1,808 — 11,434 Less: Net income (loss) from noncontrolling interests — 3 (2) — 757 — 758 Net income $ 4,242 1,421 3,078 884 1,051 — 10,676 Six months ended June 30, 2020 Net interest income (2) $ 11,719 3,287 3,984 1,557 939 (264) 21,222 Noninterest income 4,538 1,409 3,483 4,919 1,303 (415) 15,237 Total revenue 16,257 4,696 7,467 6,476 2,242 (679) 36,459 Provision for credit losses 4,671 3,336 4,881 263 388 — 13,539 Noninterest expense 13,190 3,153 3,914 5,400 1,942 — 27,599 Income (loss) before income tax expense (benefit) (1,604) (1,793) (1,328) 813 (88) (679) (4,679) Income tax expense (benefit) (445) (442) (307) 204 21 (679) (1,648) Net income (loss) before noncontrolling interests (1,159) (1,351) (1,021) 609 (109) — (3,031) Less: Net income (loss) from noncontrolling interests — 2 — — (103) — (101) Net income (loss) $ (1,159) (1,353) (1,021) 609 (6) — (2,930) (continued on following page) (continued from previous page) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Items (1) Consolidated Quarter ended June 30, 2021 Loans (average) $ 331,892 178,572 252,422 81,784 10,077 — 854,747 Assets (average) 388,617 195,453 513,414 87,766 754,629 — 1,939,879 Deposits (average) 835,752 192,586 190,810 174,980 41,696 — 1,435,824 Six months ended June 30, 2021 Loans (average) $ 342,428 180,845 249,302 81,314 10,152 — 864,041 Assets (average) 398,530 197,396 512,476 87,562 741,203 — 1,937,167 Deposits (average) 812,723 190,984 192,645 174,333 44,080 — 1,414,765 Loans (period-end) 326,760 178,905 253,259 82,783 10,593 — 852,300 Assets (period-end) 382,464 196,421 516,518 88,678 761,915 — 1,945,996 Deposits (period-end) 840,434 197,461 188,219 174,267 40,091 — 1,440,472 Quarter ended June 30, 2020 Loans (average) $ 369,631 228,423 273,587 78,091 21,534 — 971,266 Assets (average) 427,065 243,762 535,298 85,438 655,617 — 1,947,180 Deposits (average) 715,144 184,132 239,637 165,103 82,640 — 1,386,656 Six months ended June 30, 2020 Loans (average) $ 376,096 226,641 265,915 77,987 21,517 — 968,156 Assets (average) 433,226 243,293 543,455 85,538 642,513 — 1,948,025 Deposits (average) 683,925 175,929 252,902 155,246 94,307 — 1,362,309 Loans (period-end) 368,753 210,779 255,574 78,101 21,948 — 935,155 Assets (period-end) 432,100 226,735 510,205 84,699 713,309 — 1,967,048 Deposits (period-end) 746,602 183,085 236,620 168,249 76,155 — 1,410,711 (1) Taxable-equivalent adjustments related to tax-exempt income on certain loans and debt securities are included in net interest income, while taxable-equivalent adjustments related to income tax credits for low-income housing and renewable energy investments are included in noninterest income, in each case with corresponding impacts to income tax expense (benefit). Adjustments are included in Corporate, Commercial Banking, and Corporate and Investment Banking and are eliminated to reconcile to the Company’s consolidated financial results. (2) Net interest income is interest earned on assets minus the interest paid on liabilities to fund those assets. Segment interest earned includes actual interest income on segment assets as well as a funding credit for their deposits. Segment interest paid on liabilities includes actual interest expense on segment liabilities as well as a funding charge for their assets.

Regulatory Capital Requirements

Regulatory Capital Requirements and Other Restrictions	6 Months Ended
	Jun. 30, 2021
Regulatory Capital Requirements and Other Restrictions [Abstract]
Regulatory Capital Requirements and Other Restrictions	Note 23: Regulatory Capital Requirements and Other Restrictions Regulatory Capital Requirements The Company and each of its subsidiary banks are subject to regulatory capital adequacy requirements promulgated by federal banking regulators. The FRB 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. Our capital adequacy is assessed based on the lower of our risk-based capital ratios calculated under the Standardized Approach and under the Advanced Approach. 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 Common Equity Tier 1 (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 June 30, 2021, the Bank and our other insured depository institutions were considered well-capitalized under the requirements of the Federal Deposit Insurance Act. Table 23.1: Regulatory Capital Information (1) Wells Fargo & Company Wells Fargo Bank, N.A. June 30, 2021 December 31, 2020 June 30, 2021 December 31, 2020 (in millions, except ratios) Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Regulatory capital: Common Equity Tier 1 $ 143,442 143,442 138,297 138,297 151,121 151,121 150,168 150,168 Tier 1 162,999 162,999 158,196 158,196 151,121 151,121 150,168 150,168 Total 190,173 200,156 186,934 196,660 165,154 174,641 164,412 173,719 Assets: Risk-weighted assets (2) 1,126,535 1,188,727 1,158,355 1,193,744 988,692 1,087,876 1,012,751 1,085,599 Adjusted average assets 1,911,654 1,911,654 1,900,258 1,900,258 1,752,195 1,752,195 1,735,406 1,735,406 Regulatory capital ratios: Common Equity Tier 1 capital 12.73 % 12.07 * 11.94 11.59 * 15.28 13.89 * 14.83 13.83 * Tier 1 capital 14.47 13.71 * 13.66 13.25 * 15.28 13.89 * 14.83 13.83 * Total capital 16.88 16.84 * 16.14 * 16.47 16.70 16.05 * 16.23 16.00 * Wells Fargo & Company Wells Fargo Bank, N.A. June 30, 2021 December 31, 2020 June 30, 2021 December 31, 2020 Regulatory leverage: Total leverage exposure (3) $ 2,300,416 1,963,971 2,117,710 2,041,952 Supplementary leverage ratio (SLR) (3)(4) 7.09 % 8.05 7.14 7.35 Tier 1 leverage ratio (5) 8.53 8.32 8.62 8.65 *Denotes the binding ratio based on the lower calculation under the Advanced and Standardized Approaches. (1) At June 30, 2021, the impact of the CECL transition provision issued by federal banking regulators on the regulatory capital of the Company was an increase in capital of $879 million, reflecting a $991 million (post-tax) increase in capital recognized upon our initial adoption of CECL, offset by 25% of the $7.5 billion increase in our ACL under CECL from January 1, 2020, through June 30, 2021. The impact of the CECL transition provision on the regulatory capital of the Bank at June 30, 2021, was an increase in capital of $879 million. (2) RWAs for the Company and the Bank included an increase of $547 million under the Standardized Approach and a decrease of $1.4 billion under the Advanced Approach related to the impact of the CECL transition provision on the excess allowance for credit losses as of June 30, 2021. (3) The 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. (4) In 2020, the FRB issued an interim final rule that temporarily allowed the exclusion for on-balance sheet amounts of U.S. Treasury securities and deposits at Federal Reserve Banks from the calculation of total leverage exposure in the denominator of the SLR. The Company adopted this interim final rule, but the Bank did not elect to apply these exclusions. The interim final rule expired on April 1, 2021. (5) The tier 1 leverage ratio consists of tier 1 capital divided by total average assets, excluding goodwill and certain other items as determined under the rule. At June 30, 2021, under transition requirements, the CET1, tier 1 and total capital ratio requirements for the Company included a global systemically important bank (G-SIB) surcharge of 2.00%. The G-SIB surcharge is not applicable to the Bank. In addition, the CET1, tier 1 and total capital ratio requirements for the Company and the Bank included a stress capital buffer of 2.50% under the Standardized Approach and a capital conservation buffer of 2.50% under the Advanced Approach. The Company is required to maintain these risk-based capital ratios and to maintain an SLR of at least 5.00% (comprised of a 3.00% minimum requirement plus a supplementary leverage buffer of 2.00%) to avoid restrictions on capital distributions and discretionary bonus payments. The Bank is required to maintain an SLR of at least 6.00% to be considered well-capitalized under applicable regulatory capital adequacy rules. Table 23.2 presents the risk-based capital and leverage requirements under transition requirements to which the Company and the Bank were subject as of June 30, 2021, and December 31, 2020, which were the same under both the Standardized and Advanced Approaches. Table 23.2: Risk-Based Capital and Leverage Ratios – Transition Requirements Wells Fargo & Company Wells Fargo Bank, N.A. Jun 30, 2021 Jun 30, 2021 and Dec 31, 2020 and Dec 31, 2020 Common Equity Tier 1 capital 9.00 % 7.00 Tier 1 capital 10.50 8.50 Total capital 12.50 10.50 Tier 1 leverage 4.00 4.00 Supplementary leverage 5.00 6.00 Capital Planning Requirements The FRB’s c apital plan rule establishes capital planning and other requirements that govern capital distributions, including dividends and share repurchases, by certain large bank holding companies (BHCs), including Wells Fargo. The FRB conducts an annual Comprehensive Capital Analysis and Review exercise and 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 Parent’s ability to make certain capital distributions is subject to the requirements of the capital plan rule and is also subject to the Parent meeting or exceeding certain regulatory capital minimums. On March 25, 2021, the FRB announced that it was extending measures it previously announced limiting large BHCs, including Wells Fargo, from making any capital distribution (excluding any capital distribution arising from the issuance of a capital instrument eligible for inclusion in the numerator of a regulatory capital ratio), unless otherwise approved by the FRB. The FRB generally authorized BHCs to (i) provided that the BHC does not increase the amount of its common stock dividends to be larger than the level paid in second quarter 2020, pay common stock dividends and make share repurchases that, in the aggregate, do not exceed an amount equal to the average of the BHC’s net income for the four preceding calendar quarters; (ii) make share repurchases that equal the amount of share issuances related to expensed employee compensation; and (iii) redeem and make scheduled payments on additional tier 1 and tier 2 capital instruments. These limitations on capital distributions ended on June 30, 2021. Loan and Dividend Restrictions Federal law restricts the amount and the terms of both credit and non-credit transactions between a bank and its nonbank affiliates. Additionally, federal laws and regulations limit the dividends that a national bank may pay. 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. In 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 subsidiaries of the Parent designated from time to time as material entities for resolution planning purposes or identified from time to time 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. For additional information on loan and dividend restrictions, see Note 28 (Regulatory Capital Requirements and Other Restrictions) in our 2020 Form 10-K. Cash Restrictions Cash and cash equivalents may be restricted as to usage or withdrawal. Table 23.3 provides a summary of restrictions on cash and cash equivalents . Table 23.3: Nature of Restrictions on Cash and Cash Equivalents (in millions) Jun 30, Dec 31, Reserve balance for non-U.S. central banks $ 199 243 Segregated for benefit of brokerage customers under federal and other brokerage regulations 878 957

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Significant Accounting Policies [Line Items]
Business Description and Basis of Presentation	Wells Fargo & Company is a diversified financial services company. We provide banking, investment and mortgage products and services, as well as consumer and commercial finance, through banking locations and offices, the internet and other distribution channels to individuals, businesses and institutions in all 50 states, the District of Columbia, and in countries outside the U.S. 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, 2020 (2020 Form 10-K).
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 4 (Loans and Related Allowance for Credit Losses)); • valuations of residential mortgage servicing rights (MSRs) (Note 8 (Securitizations and Variable Interest Entities) and Note 9 (Mortgage Banking Activities)); • valuations of financial instruments (Note 15 (Fair Values of Assets and Liabilities)); • liabilities for contingent litigation losses (Note 13 (Legal Actions)); • income taxes; and • goodwill impairment (Note 10 (Intangible Assets)). 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 2020 Form 10-K.
Change in Accounting Policies	Change in Accounting Policies In second quarter 2021, we elected to change our accounting method for low-income housing tax credit (LIHTC) investments from the equity method of accounting to the proportional amortization method. Under the proportional amortization method, the investments are carried at amortized cost and amortized in proportion to the tax credits received. The amortization of the investments and the related tax impacts are recognized in income tax expense. Previously, we recognized the amortization of the investments in other noninterest income and the related tax impacts were recognized in income tax expense. We determined that the proportional amortization method is preferable because it better aligns the financial statement presentation with the economic impact of these investments, which generate tax credits over the lives of the investments. Adoption of the proportional amortization method was applied retrospectively, to the earliest period presented, which resulted in a cumulative-effect adjustment to reduce retained earnings by $283 million as of January 1, 2020. In second quarter 2021, we also elected to change the presentation of investment tax credits related to solar energy investments, which are accounted for under the deferral method. We reclassified the investment tax credits on our consolidated balance sheet from accrued expenses and other liabilities to a reduction of the carrying value of the investment balances. We also reclassified the investment tax credits, which are recognized over time, from income tax expense to interest income for solar energy leases or noninterest income for solar energy equity investments. We determined that this presentation is preferable because it better reflects the financial statement presentation of the investment tax credits as an integral component of the investments. The change in accounting policy was adopted retrospectively to January 1, 2020.
Accounting Standards Adopted in 2021	Accounting Standards Adopted in 2021 In 2021, we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2021-01 – Reference Rate Reform (Topic 848): Scope • ASU 2020-08 – Codification Improvements to Subtopic 310-20, Receivables – Nonrefundable Fees and Other Costs • ASU 2020-01 – Investments – Equity Securities (Topic 321), Investments – Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815): Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Financial Accounting Standards Board (FASB) Emerging Issues Task Force) • ASU 2019-12 – Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes
Subsequent Events	Subsequent Events
Accounting Standards Update 2021-01 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2021	ASU 2021-01 clarifies the scope of Topic 848 to include derivatives affected by changes in interest rates for margining, discounting, or contract price alignment as part of the market-wide transition to new reference rates (commonly referred to as the “discounting transition”), even if they do not reference the London Interbank Offered Rate or another rate that is expected to be discontinued as a result of reference rate reform. The Update also clarifies other aspects of the relief provided in Accounting Standards Codification (ASC) 848. We adopted this Update in first quarter 2021 on a prospective basis, and the guidance will be followed until the Update terminates on December 31, 2022. The Update did not have a material impact on our consolidated financial statements.
Accounting Standards Update 2020-08 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2021	ASU 2020-08 clarifies the accounting for purchased callable debt securities carried at a premium and was issued to correct an unintended application of ASU 2017-08 – Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities , which requires amortization of such premiums to the earliest call date, but was not clear for the method to be used for instruments with multiple call dates. The Update now specifies that such premiums are amortized to the next call date and requires reassessment throughout the life of the instruments with multiple call dates. We adopted this Update in first quarter
Accounting Standards Update 2020-01 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2021	ASU 2020-01 clarifies the accounting for equity securities upon transition between the measurement alternative and equity method. The Update also clarifies for forward contracts and options to purchase equity securities an entity need not consider whether upon settlement of the forward contract or option if the equity securities would be accounted for by the equity method or the fair value option. We adopted this Update in first quarter 2021. The Update did not have a material impact on our consolidated financial statements.
Accounting Standards Update 2019-12 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards Adopted in 2021	ASU 2019-12 provides narrow scope simplifications and improvements to the general principles in ASC Topic 740 – Income Taxes related to intraperiod tax allocation, basis differences when there are changes in ownership of foreign investments and interim periods income tax accounting for year to date losses that exceed anticipated annual losses. We adopted this Update in first quarter 2021. The Update did not have a material impact on our consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Impact of the Accounting Policy Changes for LIHTC Investments and Solar Energy Investments	Table 1.1 presents the impact of the accounting policy changes for LIHTC investments and solar energy investments to our consolidated statement of income and consolidated balance sheet. There was no material impact to the consolidated statement of cash flows. Table 1.1: Impact of the Accounting Policy Changes for LIHTC Investments and Solar Energy Investments Quarter ended June 30, 2020 Six months ended June 30, 2020 Effect of accounting policy changes ($) Effect of accounting policy changes ($) ($ in millions, except per share amounts) As reported LIHTC Solar As revised As reported LIHTC Solar As revised Selected Income Statement Data Interest income – loans $ 8,448 — 12 8,460 18,513 — 30 18,543 Noninterest income 7,956 370 68 8,394 14,361 739 137 15,237 Income tax expense (benefit) (1) (3,917) 1,434 482 (2,001) (3,758) 1,584 526 (1,648) Net income (loss) (2,379) (1,064) (403) (3,846) (1,726) (845) (359) (2,930) Earnings (loss) per common share (0.66) (0.26) (0.09) (1.01) (0.65) (0.21) (0.08) (0.94) Diluted earnings (loss) per common share (0.66) (0.26) (0.09) (1.01) (0.65) (0.21) (0.08) (0.94) At December 31, 2020 Effect of accounting policy changes ($) As reported LIHTC Solar As revised Selected Balance Sheet Data Equity securities $ 62,260 (275) (1,977) 60,008 Accrued expenses and other liabilities 76,404 (62) (1,982) 74,360 Retained earnings 162,890 (207) — 162,683 (1) The quarterly income tax expense (benefit) varies based on the income (loss) before income tax expense (benefit) and the estimated annual effective income tax rate applied to each quarter.
Supplemental Cash Flow Information	Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.2. Table 1.2: Supplemental Cash Flow Information Six months ended June 30, (in millions) 2021 2020 Held-to-maturity debt securities purchased from securitization of LHFS (1) 16,462 664 Transfers from loans to LHFS (2) 11,551 12,753 Transfers from available-for-sale debt securities to held-to-maturity debt securities 41,298 — (1) For the six months ended June 30, 2021, predominantly represents agency mortgage-backed securities purchased upon settlement of the sale and securitization of our conforming residential mortgage loans. See Note 8 (Securitizations and Variable Interest Entities) for additional information. (2) Prior periods have been revised to conform to the current period presentation.

Trading Activities (Tables)

Trading Activities (Tables)	6 Months Ended
	Jun. 30, 2021
Trading Activities [Abstract]
Trading Assets and Liabilities	Table 2.1 presents a summary of our trading assets and liabilities measured at fair value through earnings. Table 2.1: Trading Assets and Liabilities (in millions) Jun 30, Dec 31, Trading assets: Debt securities $ 82,727 75,095 Equity securities 23,701 23,032 Loans held for sale 2,269 1,015 Gross trading derivative assets 54,965 58,767 Netting (1) (31,052) (34,301) Total trading derivative assets 23,913 24,466 Total trading assets 132,610 123,608 Trading liabilities: Short sale 22,043 22,441 Gross trading derivative liabilities 45,441 53,285 Netting (1) (33,614) (39,444) Total trading derivative liabilities 11,827 13,841 Total trading liabilities $ 33,870 36,282 (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 2.2 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 2.2: Net Interest Income and Net Gains (Losses) on Trading Activities Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Interest income: Debt securities $ 496 $ 659 $ 1,025 1,425 Equity securities 93 68 196 205 Loans held for sale 3 6 15 18 Total interest income 592 733 1,236 1,648 Less: Interest expense 105 116 215 257 Net interest income 487 617 1,021 1,391 Net gains (losses) from trading activities (1): Debt securities 769 329 (1,337) 2,684 Equity securities 856 2,329 2,009 (2,072) Loans held for sale 15 24 39 12 Derivatives (2) (1,619) (1,875) (342) 247 Total net gains from trading activities 21 807 369 871 Total trading-related net interest and noninterest income $ 508 $ 1,424 $ 1,390 2,262 (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)	6 Months Ended
	Jun. 30, 2021
AFS and HTM Debt Securities [Abstract]
Available-for-Sale and Held-to-Maturity Debt Securities Outstanding	Table 3.1 provides the amortized cost, net of the allowance for credit losses (ACL) for debt securities, and fair value by major categories of available-for-sale (AFS) debt securities, which are carried at fair value, and held-to-maturity (HTM) debt securities, which are carried at amortized cost, net of the ACL. The net unrealized gains (losses) for AFS debt securities are reported as a component of cumulative other comprehensive income (OCI), net of the ACL and applicable income taxes. Information on debt securities held for trading is included in Note 2 (Trading Activities). Outstanding balances exclude accrued interest receivable on AFS and HTM debt securities, which are included in other assets. See Note 7 (Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. The interest income reversed in the second quarter and first half of both 2021 and 2020 was insignificant. Table 3.1: Available-for-Sale and Held-to-Maturity Debt Securities Outstanding (in millions) Amortized Gross Gross Fair value June 30, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 35,741 195 (31) 35,905 Non-U.S. government securities 11,201 — — 11,201 Securities of U.S. states and political subdivisions (2) 19,121 410 (32) 19,499 Federal agency mortgage-backed securities 94,186 2,679 (331) 96,534 Non-agency mortgage-backed securities (3) 4,349 51 (22) 4,378 Collateralized loan obligations 12,406 8 (7) 12,407 Other debt securities 9,305 699 (31) 9,973 Total available-for-sale debt securities 186,309 4,042 (454) 189,897 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 27,576 862 (409) 28,029 Securities of U.S. states and political subdivisions 28,243 931 (36) 29,138 Federal agency mortgage-backed securities 182,891 2,908 (1,349) 184,450 Non-agency mortgage-backed securities 948 46 (11) 983 Collateralized loan obligations 21,283 205 (1) 21,487 Total held-to-maturity debt securities 260,941 4,952 (1,806) 264,087 Total (4) $ 447,250 8,994 (2,260) 453,984 December 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 21,954 205 — 22,159 Non-U.S. government securities 16,816 — (3) 16,813 Securities of U.S. states and political subdivisions (2) 19,263 224 (81) 19,406 Federal agency mortgage-backed securities 134,838 4,260 (28) 139,070 Non-agency mortgage-backed securities (3) 3,745 30 (46) 3,729 Collateralized loan obligations 9,058 4 (44) 9,018 Other debt securities 9,859 399 (61) 10,197 Total available-for-sale debt securities 215,533 5,122 (263) 220,392 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 47,295 1,472 (170) 48,597 Securities of U.S. states and political subdivisions 25,860 938 (5) 26,793 Federal agency mortgage-backed securities 115,437 4,182 (21) 119,598 Non-agency mortgage-backed securities 890 51 (8) 933 Collateralized loan obligations 16,238 148 — 16,386 Total held-to-maturity debt securities 205,720 6,791 (204) 212,307 Total (4) $ 421,253 11,913 (467) 432,699 (1) Represents amortized cost of the securities, net of the ACL of $33 million and $28 million related to AFS debt securities and $77 million and $41 million related to HTM debt securities at June 30, 2021, and December 31, 2020, respectively. (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 the ACL and fair value of these types of securities, was $5.2 billion at June 30, 2021, and $5.0 billion at December 31, 2020. (3) Predominantly consists of commercial mortgage-backed securities at both June 30, 2021, and December 31, 2020. (4) We held AFS and HTM 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 $119.8 billion and $89.9 billion and a fair value of $121.5 billion and $91.3 billion at June 30, 2021, and an amortized cost of $99.8 billion and $88.7 billion and a fair value of $103.2 billion and $91.5 billion at December 31, 2020, respectively.
Held-to-Maturity Debt Securities Purchases And Transfers	Table 3.2 details the breakout of purchases of and transfers to HTM debt securities by major category of security. Table 3.2: Held-to-Maturity Debt Securities Purchases and Transfers Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Purchases of held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies $ — — $ — 3,016 Securities of U.S. states and political subdivisions 1,173 15 3,083 881 Federal agency mortgage-backed securities 24,855 6,958 49,722 22,821 Non-agency mortgage-backed securities 55 12 84 74 Collateralized loan obligations 3,385 — 7,338 — Total purchases of held-to-maturity debt securities 29,468 6,985 60,227 26,792 Transfers from available-for-sale debt securities to held-to-maturity debt securities: Federal agency mortgage-backed securities 24,681 — 41,298 — Total transfers from available-for-sale debt securities to held-to-maturity debt securities $ 24,681 — $ 41,298 —
Income Statement Impacts for Available-for-Sale and Held-to-Maturity Debt Securities	Table 3.3 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 AFS and HTM debt securities (pre-tax) . Table 3.3: Income Statement Impacts for Available-for-Sale and Held-to-Maturity Debt Securities Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Interest income (1): Available-for-sale $ 655 1,349 $ 1,466 3,075 Held-to-maturity 1,048 938 2,020 1,918 Total interest income 1,703 2,287 3,486 4,993 Provision for credit losses: Available-for-sale (10) (40) 12 128 Held-to-maturity (11) 9 36 13 Total provision for credit losses (21) (31) 48 141 Realized gains and losses (2): Gross realized gains 1 248 152 504 Gross realized losses (1) (36) (1) (40) Impairment write-downs — — — (15) Net realized gains $ — $ 212 $ 151 449 (1) Excludes interest income from trading debt securities, which is disclosed in Note 2 (Trading Activities). (2) Realized gains and losses relate to AFS debt securities. There were no realized gains or losses from HTM debt securities in all periods presented.
Investment Grade Debt Securities	Table 3.4 shows the percentage of fair value of AFS debt securities and amortized cost of HTM debt securities determined to be rated investment grade, inclusive of securities rated based on internal credit grades. Table 3.4: Investment Grade Debt Securities Available-for-Sale Held-to-Maturity ($ in millions) Fair value % investment grade Amortized cost % investment grade June 30, 2021 Total portfolio (1) $ 189,897 99 % 261,018 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (2) $ 132,439 100 % 210,467 100 % Securities of U.S. states and political subdivisions 19,499 99 28,258 100 Collateralized loan obligations (3) 12,407 100 21,329 100 All other debt securities (4) 25,552 91 964 4 December 31, 2020 Total portfolio (1) $ 220,392 99 % 205,761 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (2) $ 161,229 100 % 162,732 100 % Securities of U.S. states and political subdivisions 19,406 99 25,870 100 Collateralized loan obligations (3) 9,018 100 16,255 100 All other debt securities (4) 30,739 93 904 6 (1) 94% and 92% were rated AA- and above at June 30, 2021, and December 31, 2020, respectively. (2) Includes federal agency mortgage-backed securities. (3) 99% and 98% were rated AA- and above at June 30, 2021, and December 31, 2020, respectively. (4) Includes non-U.S. government, non-agency mortgage-backed, and all other debt securities.
Gross Unrealized Losses and Fair Value - Available-for-Sale Debt Securities	Table 3.5 shows the gross unrealized losses and fair value of AFS 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 amortized cost basis, net of allowance for credit losses. Table 3.5: 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 June 30, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (31) 11,924 — — (31) 11,924 Non-U.S. government securities — — — — — — Securities of U.S. states and political subdivisions (21) 1,413 (11) 717 (32) 2,130 Federal agency mortgage-backed securities (285) 18,152 (46) 2,924 (331) 21,076 Non-agency mortgage-backed securities (3) 330 (19) 771 (22) 1,101 Collateralized loan obligations (2) 1,312 (5) 1,698 (7) 3,010 Other debt securities (15) 1,196 (16) 807 (31) 2,003 Total available-for-sale debt securities $ (357) 34,327 (97) 6,917 (454) 41,244 December 31, 2020 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ — — — — — — Non-U.S. government securities (3) 16,812 — — (3) 16,812 Securities of U.S. states and political subdivisions (51) 3,681 (30) 1,101 (81) 4,782 Federal agency mortgage-backed securities (27) 11,310 (1) 316 (28) 11,626 Non-agency mortgage-backed securities (28) 1,366 (18) 534 (46) 1,900 Collateralized loan obligations (27) 5,082 (17) 1,798 (44) 6,880 Other debt securities (16) 647 (45) 1,604 (61) 2,251 Total available-for-sale debt securities $ (152) 38,898 (111) 5,353 (263) 44,251
Contractual Maturities - Available-for-Sale Debt Securities	Table 3.6 and Table 3.7 show the remaining contractual maturities, amortized cost, net of the ACL, fair value and weighted average effective yields of AFS and HTM debt securities, respectively. The remaining contractual principal maturities for mortgage-backed securities (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 3.6: Contractual Maturities – Available-for-Sale Debt Securities By remaining contractual maturity ($ in millions) Total Within After After After June 30, 2021 Available-for-sale debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 35,741 5 17,965 15,777 1,994 Fair value 35,905 5 17,978 15,837 2,085 Weighted average yield 0.75 % 2.00 0.33 1.13 1.44 Non-U.S. government securities Amortized cost, net $ 11,201 11,176 25 — — Fair value 11,201 11,176 25 — — Weighted average yield (0.11 %) (0.11) 0.42 — — Securities of U.S. states and political subdivisions Amortized cost, net $ 19,121 1,546 2,225 5,244 10,106 Fair value 19,499 1,549 2,270 5,253 10,427 Weighted average yield 2.07 % 1.46 1.58 1.41 2.62 Federal agency mortgage-backed securities Amortized cost, net $ 94,186 8 171 3,359 90,648 Fair value 96,534 8 181 3,484 92,861 Weighted average yield 2.72 % 2.35 3.30 2.30 2.74 Non-agency mortgage-backed securities Amortized cost, net $ 4,349 — — 151 4,198 Fair value 4,378 — — 150 4,228 Weighted average yield 2.00 % — — 2.27 1.99 Collateralized loan obligations Amortized cost, net $ 12,406 — 90 7,306 5,010 Fair value 12,407 — 90 7,304 5,013 Weighted average yield 1.42 % — 2.21 1.44 1.39 Other debt securities Amortized cost, net $ 9,305 160 2,791 2,865 3,489 Fair value 9,973 160 3,152 2,910 3,751 Weighted average yield 3.17 % 2.97 4.23 3.31 2.22 Total available-for-sale debt securities Amortized cost, net $ 186,309 12,895 23,267 34,702 115,445 Fair value $ 189,897 12,898 23,696 34,938 118,365 Weighted average yield 2.03 % 0.22 0.95 1.54 2.60 (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 3.7: Contractual Maturities – Held-to-Maturity Debt Securities By remaining contractual maturity ($ in millions) Total Within After After After June 30, 2021 Held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 27,576 11,386 12,407 — 3,783 Fair value 28,029 11,461 13,140 — 3,428 Weighted average yield 2.10 % 1.98 2.37 — 1.57 Securities of U.S. states and political subdivisions Amortized cost, net $ 28,243 673 2,177 2,066 23,327 Fair value 29,138 680 2,246 2,150 24,062 Weighted average yield 2.19 % 2.09 1.90 2.65 2.18 Federal agency mortgage-backed securities Amortized cost, net $ 182,891 — — — 182,891 Fair value 184,450 — — — 184,450 Weighted average yield 2.20 % — — — 2.20 Non-agency mortgage-backed securities Amortized cost, net $ 948 — 15 — 933 Fair value 983 — 15 — 968 Weighted average yield 3.09 % — 1.56 — 3.12 Collateralized loan obligations Amortized cost, net $ 21,283 — — 8,155 13,128 Fair value 21,487 — — 8,248 13,239 Weighted average yield 1.68 % — — 1.73 1.65 Total held-to-maturity debt securities Amortized cost, net $ 260,941 12,059 14,599 10,221 224,062 Fair value 264,087 12,141 15,401 10,398 226,147 Weighted average yield 2.15 % 1.98 2.30 1.91 2.16 (1) Weighted average yields displayed by maturity bucket are weighted based on amortized cost and are shown pre-tax.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2021
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans Outstanding	Table 4.1 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 June 30, 2021, and December 31, 2020. Outstanding balances exclude accrued interest receivable on loans, except for certain revolving loans, such as credit card loans. See Note 7 (Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. During the first half of 2021, we reversed accrued interest receivable of $24 million for our commercial portfolio segment and $104 million for our consumer portfolio segment, compared with $21 million and $114 million, respectively, for the same period a year ago. Table 4.1: Loans Outstanding (in millions) Jun 30, Dec 31, Commercial: Commercial and industrial $ 317,618 318,805 Real estate mortgage 120,678 121,720 Real estate construction 22,406 21,805 Lease financing 15,720 16,087 Total commercial 476,422 478,417 Consumer: Residential mortgage – first lien 244,371 276,674 Residential mortgage – junior lien 19,637 23,286 Credit card 34,936 36,664 Auto 51,073 48,187 Other consumer 25,861 24,409 Total consumer 375,878 409,220 Total loans $ 852,300 887,637 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 4.2 presents total non-U.S. commercial loans outstanding by class of financing receivable. Table 4.2: Non-U.S. Commercial Loans Outstanding (in millions) Jun 30, Dec 31, Non-U.S. commercial loans: Commercial and industrial $ 71,409 63,128 Real estate mortgage 6,619 7,278 Real estate construction 1,820 1,603 Lease financing 672 629 Total non-U.S. commercial loans $ 80,520 72,638
Loans Purchases, Sales, and Transfers	Table 4.3 presents 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 residential mortgage – first lien loans because their loan activity normally does not impact the ACL. Table 4.3: Loan Purchases, Sales, and Transfers 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended June 30, Purchases $ 134 1 135 332 2 334 Sales (65) — (65) (1,957) (1) (1,958) Transfers (to)/from LHFS (359) (99) (458) (8) (10,379) (10,387) Six months ended June 30, Purchases $ 182 2 184 673 3 676 Sales (338) (188) (526) (2,770) (27) (2,797) Transfers (to)/from LHFS (794) (36) (830) 69 (10,377) (10,308)
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 4.4. The table excludes the issued standby and commercial letters of credit and temporary advance arrangements described above. Table 4.4: Unfunded Credit Commitments (in millions) Jun 30, Dec 31, Commercial: Commercial and industrial $ 394,370 378,167 Real estate mortgage 8,794 7,993 Real estate construction 16,260 15,650 Total commercial 419,424 401,810 Consumer: Residential mortgage – first lien 37,920 31,530 Residential mortgage – junior lien 30,170 32,820 Credit card 124,985 121,096 Other consumer 54,724 49,179 Total consumer 247,799 234,625 Total unfunded credit commitments $ 667,223 636,435
Allowance for Credit Losses for Loans	Table 4.5 presents the allowance for credit losses (ACL) for loans, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. The ACL for loans decreased $3.3 billion from December 31, 2020, due to improvements in current and forecasted economic conditions. Table 4.5: Allowance for Credit Losses for Loans Quarter ended June 30, Six months ended June 30, ($ in millions) 2021 2020 2021 2020 Balance, beginning of period $ 18,043 12,022 19,713 10,456 Cumulative effect from change in accounting policies (1) — — — (1,337) Allowance for purchased credit-deteriorated (PCD) loans (2) — — — 8 Balance, beginning of period, adjusted 18,043 12,022 19,713 9,127 Provision for credit losses (1,239) 9,565 (2,356) 13,398 Interest income on certain impaired loans (3) (36) (38) (77) (76) Loan charge-offs: Commercial: Commercial and industrial (149) (556) (308) (933) Real estate mortgage (11) (72) (63) (75) Real estate construction — — — — Lease financing (10) (19) (31) (32) Total commercial (170) (647) (402) (1,040) Consumer: Residential mortgage – first lien (6) (20) (23) (43) Residential mortgage – junior lien (12) (18) (31) (48) Credit card (357) (415) (692) (886) Auto (128) (158) (257) (314) Other consumer (79) (113) (226) (278) Total consumer (582) (724) (1,229) (1,569) Total loan charge-offs (752) (1,371) (1,631) (2,609) Loan recoveries: Commercial: Commercial and industrial 68 35 139 79 Real estate mortgage 16 5 22 10 Real estate construction 1 1 1 17 Lease financing 5 4 11 8 Total commercial 90 45 173 114 Consumer: Residential mortgage – first lien 25 18 66 44 Residential mortgage – junior lien 43 30 81 65 Credit card 101 88 200 182 Auto 83 52 160 126 Other consumer 29 25 57 56 Total consumer 281 213 564 473 Total loan recoveries 371 258 737 587 Net loan charge-offs (381) (1,113) (894) (2,022) Other 4 — 5 9 Balance, end of period $ 16,391 20,436 16,391 20,436 Components: Allowance for loan losses $ 15,148 18,926 15,148 18,926 Allowance for unfunded credit commitments 1,243 1,510 1,243 1,510 Allowance for credit losses $ 16,391 20,436 16,391 20,436 Net loan charge-offs (annualized) as a percentage of average total loans 0.18 % 0.46 0.21 0.42 Allowance for loan losses as a percentage of total loans 1.78 2.02 1.78 2.02 Allowance for credit losses for loans as a percentage of total loans 1.92 2.19 1.92 2.19 (1) Represents the overall decrease in our ACL for loans as a result of our adoption of CECL on January 1, 2020. (2) Represents the allowance estimated for purchased credit-impaired (PCI) loans that automatically became PCD loans with the adoption of CECL. For additional information, see Note 1 (Summary of Significant Accounting Policies) in our 2020 Form 10-K. (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 4.6 summarizes the activity in the ACL by our commercial and consumer portfolio segments. Table 4.6: Allowance for Credit Losses for Loans Activity by Portfolio Segment 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Quarter ended June 30, Balance, beginning of period $ 10,682 7,361 18,043 5,279 6,743 12,022 Provision for credit losses (1,021) (218) (1,239) 6,999 2,566 9,565 Interest income on certain loans (3) (15) (21) (36) (12) (26) (38) Loan charge-offs (170) (582) (752) (647) (724) (1,371) Loan recoveries 90 281 371 45 213 258 Net loan charge-offs (80) (301) (381) (602) (511) (1,113) Other 4 — 4 5 (5) — Balance, end of period $ 9,570 6,821 16,391 11,669 8,767 20,436 Six months ended June 30, Balance, beginning of period $ 11,516 8,197 19,713 6,245 4,211 10,456 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 11,516 8,197 19,713 3,384 5,743 9,127 Provision for credit losses (1,688) (668) (2,356) 9,239 4,159 13,398 Interest income on certain loans (3) (34) (43) (77) (26) (50) (76) Loan charge-offs (402) (1,229) (1,631) (1,040) (1,569) (2,609) Loan recoveries 173 564 737 114 473 587 Net loan charge-offs (229) (665) (894) (926) (1,096) (2,022) Other 5 — 5 (2) 11 9 Balance, end of period $ 9,570 6,821 16,391 11,669 8,767 20,436 (1) Represents the overall decrease in our ACL 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 additional information, see Note 1 (Summary of Significant Accounting Policies) in our 2020 Form 10-K. (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.
Commercial Loan Categories by Risk Categories and Vintage	Table 4.7 provides the outstanding balances of our commercial loan portfolio by risk category. 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 troubled debt restructuring (TDR). At June 30, 2021, we had $442.6 billion and $33.8 billion of pass and criticized commercial loans, respectively. Table 4.7: Commercial Loan Categories by Risk Categories and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans Total (in millions) 2021 2020 2019 2018 2017 Prior June 30, 2021 Commercial and industrial Pass $ 37,051 25,171 28,385 11,075 5,582 12,341 183,360 341 303,306 Criticized 729 1,317 1,325 1,594 826 1,078 7,443 — 14,312 Total commercial and industrial 37,780 26,488 29,710 12,669 6,408 13,419 190,803 341 317,618 Real estate mortgage Pass 14,713 18,977 21,983 15,350 9,245 20,321 4,478 1 105,068 Criticized 1,664 2,450 3,444 2,679 1,286 3,665 422 — 15,610 Total real estate mortgage 16,377 21,427 25,427 18,029 10,531 23,986 4,900 1 120,678 Real estate construction Pass 2,800 4,995 6,148 3,607 775 359 1,138 2 19,824 Criticized 354 501 746 418 442 120 1 — 2,582 Total real estate construction 3,154 5,496 6,894 4,025 1,217 479 1,139 2 22,406 Lease financing Pass 2,244 3,545 3,180 1,752 1,107 2,555 — — 14,383 Criticized 145 293 374 254 129 142 — — 1,337 Total lease financing 2,389 3,838 3,554 2,006 1,236 2,697 — — 15,720 Total commercial loans $ 59,700 57,249 65,585 36,729 19,392 40,581 196,842 344 476,422 Term loans by origination year Revolving loans Revolving loans converted to term loans Total 2020 2019 2018 2017 2016 Prior December 31, 2020 Commercial and industrial Pass $ 56,915 34,040 15,936 7,274 4,048 4,738 177,107 997 301,055 Criticized 1,404 1,327 1,357 972 672 333 11,534 151 17,750 Total commercial and industrial 58,319 35,367 17,293 8,246 4,720 5,071 188,641 1,148 318,805 Real estate mortgage Pass 22,444 26,114 18,679 11,113 11,582 14,663 5,152 6 109,753 Criticized 2,133 2,544 1,817 1,287 1,625 2,082 479 — 11,967 Total real estate mortgage 24,577 28,658 20,496 12,400 13,207 16,745 5,631 6 121,720 Real estate construction Pass 5,242 6,574 4,771 1,736 477 235 1,212 3 20,250 Criticized 449 452 527 4 113 10 — — 1,555 Total real estate construction 5,691 7,026 5,298 1,740 590 245 1,212 3 21,805 Lease financing Pass 3,970 3,851 2,176 1,464 1,199 1,924 — — 14,584 Criticized 308 433 372 197 108 85 — — 1,503 Total lease financing 4,278 4,284 2,548 1,661 1,307 2,009 — — 16,087 Total commercial loans $ 92,865 75,335 45,635 24,047 19,824 24,070 195,484 1,157 478,417
Commercial Loan Categories by Delinquency Status	Table 4.8 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. Payment deferral activities instituted in response to the COVID-19 pandemic could continue to delay the recognition of delinquencies for customers who otherwise would have moved into past due status. Table 4.8: Commercial Loan Categories by Delinquency Status (in millions) Commercial Real Real Lease Total June 30, 2021 By delinquency status: Current-29 days past due (DPD) and still accruing $ 315,279 118,719 22,329 15,350 471,677 30-89 DPD and still accruing 483 256 25 155 919 90+ DPD and still accruing 165 105 7 — 277 Nonaccrual loans 1,691 1,598 45 215 3,549 Total commercial loans $ 317,618 120,678 22,406 15,720 476,422 December 31, 2020 By delinquency status: Current-29 DPD and still accruing $ 315,493 119,561 21,532 15,595 472,181 30-89 DPD and still accruing 575 347 224 233 1,379 90+ DPD and still accruing 39 38 1 — 78 Nonaccrual loans 2,698 1,774 48 259 4,779 Total commercial loans $ 318,805 121,720 21,805 16,087 478,417
Consumer Loan Categories by Delinquency Status and Vintage	Table 4.9 provides the outstanding balances of our consumer loan portfolio by delinquency status. Payment deferral activities instituted in response to the COVID-19 pandemic could continue to delay the recognition of delinquencies for customers who otherwise would have moved into past due status. 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 4.9: Consumer Loan Categories by Delinquency Status and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2021 2020 2019 2018 2017 Prior Total June 30, 2021 Residential mortgage – first lien By delinquency status: Current-29 DPD $ 30,494 47,246 32,078 10,137 17,647 76,251 5,989 1,598 221,440 30-59 DPD 28 33 52 21 34 604 15 30 817 60-89 DPD 1 11 1 3 3 187 8 18 232 90-119 DPD 2 8 3 1 7 64 6 11 102 120-179 DPD — 12 6 3 3 85 16 23 148 180+ DPD — 204 12 10 21 809 100 245 1,401 Government insured/guaranteed loans (1) 3 193 364 566 635 18,470 — — 20,231 Total residential mortgage – first lien 30,528 47,707 32,516 10,741 18,350 96,470 6,134 1,925 244,371 Residential mortgage – junior lien By delinquency status: Current-29 DPD 13 22 34 35 28 909 12,913 4,680 18,634 30-59 DPD — — 1 — — 15 28 40 84 60-89 DPD — — — — — 7 16 29 52 90-119 DPD — — — — — 3 11 22 36 120-179 DPD — — — — — 6 37 49 92 180+ DPD — — — — — 32 215 492 739 Total residential mortgage – junior lien 13 22 35 35 28 972 13,220 5,312 19,637 Credit cards By delinquency status: Current-29 DPD — — — — — — 34,201 226 34,427 30-59 DPD — — — — — — 135 7 142 60-89 DPD — — — — — — 90 6 96 90-119 DPD — — — — — — 80 7 87 120-179 DPD — — — — — — 182 2 184 180+ DPD — — — — — — — — — Total credit cards — — — — — — 34,688 248 34,936 Auto By delinquency status: Current-29 DPD 14,445 15,920 11,321 4,644 2,309 1,677 — — 50,316 30-59 DPD 33 143 148 81 52 85 — — 542 60-89 DPD 8 42 44 24 14 25 — — 157 90-119 DPD 3 17 17 8 5 8 — — 58 120-179 DPD — — — — — — — — — 180+ DPD — — — — — — — — — Total auto 14,489 16,122 11,530 4,757 2,380 1,795 — — 51,073 Other consumer By delinquency status: Current-29 DPD 982 990 994 335 155 173 22,011 150 25,790 30-59 DPD 1 2 3 2 1 2 8 3 22 60-89 DPD — 2 2 1 1 1 5 1 13 90-119 DPD — 1 2 1 — — 4 1 9 120-179 DPD — — — — — — 8 2 10 180+ DPD — — — — — 2 4 11 17 Total other consumer 983 995 1,001 339 157 178 22,040 168 25,861 Total consumer loans $ 46,013 64,846 45,082 15,872 20,915 99,415 76,082 7,653 375,878 (continued on following page) (continued from previous page) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total December 31, 2020 Residential mortgage – first lien By delinquency status: Current-29 DPD $ 53,298 43,297 14,761 24,619 30,533 67,960 6,762 1,719 242,949 30-59 DPD 111 76 36 67 79 750 52 66 1,237 60-89 DPD 88 10 6 12 13 305 56 68 558 90-119 DPD 232 11 5 8 7 197 26 33 519 120-179 DPD 3 4 1 3 5 151 17 29 213 180+ DPD 3 1 4 11 15 758 21 145 958 Government insured/guaranteed loans (1) 215 639 904 1,076 2,367 25,039 — — 30,240 Total residential mortgage – first lien 53,950 44,038 15,717 25,796 33,019 95,160 6,934 2,060 276,674 Residential mortgage – junior lien By delinquency status: Current-29 DPD 22 39 39 37 31 1,115 15,366 5,434 22,083 30-59 DPD — — 1 1 — 22 113 160 297 60-89 DPD — — 1 — — 11 154 271 437 90-119 DPD — — — 1 — 7 45 84 137 120-179 DPD — — — — — 9 36 77 122 180+ DPD — — — — 1 25 29 155 210 Total residential mortgage – junior lien 22 39 41 39 32 1,189 15,743 6,181 23,286 Credit cards By delinquency status: Current-29 DPD — — — — — — 35,612 255 35,867 30-59 DPD — — — — — — 243 12 255 60-89 DPD — — — — — — 167 10 177 90-119 DPD — — — — — — 144 10 154 120-179 DPD — — — — — — 208 3 211 180+ DPD — — — — — — — — — Total credit cards — — — — — — 36,374 290 36,664 Auto By delinquency status: Current-29 DPD 19,625 14,561 6,307 3,459 2,603 697 — — 47,252 30-59 DPD 120 183 114 80 107 46 — — 650 60-89 DPD 32 60 36 25 35 16 — — 204 90-119 DPD 13 26 14 9 12 6 — — 80 120-179 DPD — 1 — — — — — — 1 180+ DPD — — — — — — — — — Total auto 19,790 14,831 6,471 3,573 2,757 765 — — 48,187 Other consumer By delinquency status: Current-29 DPD 1,406 1,383 577 261 59 193 20,246 162 24,287 30-59 DPD 2 7 5 2 1 3 19 10 49 60-89 DPD 1 5 3 1 1 1 10 6 28 90-119 DPD 1 4 2 1 — 1 8 3 20 120-179 DPD — — — — — — 10 4 14 180+ DPD — — — — — 2 3 6 11 Total other consumer 1,410 1,399 587 265 61 200 20,296 191 24,409 Total consumer loans $ 75,172 60,307 22,816 29,673 35,869 97,314 79,347 8,722 409,220 (1) Represents loans whose repayments are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $6.1 billion and $11.1 billion at June 30, 2021, and December 31, 2020, respectively.
Consumer Loan Categories by FICO and Vintage	Table 4.10 provides the outstanding balances of our consumer loan portfolio by FICO score. Substantially all of the scored consumer portfolio has an updated FICO score of 680 and above, reflecting a strong current borrower credit profile. FICO scores are 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 $15.9 billion and $13.2 billion at June 30, 2021, and December 31, 2020, respectively. Substantially all loans not requiring a FICO score are securities-based loans originated through retail brokerage. Table 4.10: Consumer Loan Categories by FICO and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2021 2020 2019 2018 2017 Prior Total June 30, 2021 By FICO: Residential mortgage – first lien 800+ $ 14,373 29,351 21,113 6,709 12,245 47,225 2,973 453 134,442 760-799 11,864 12,539 7,250 2,017 3,200 12,684 1,229 257 51,040 720-759 3,281 4,024 2,566 857 1,343 7,473 771 243 20,558 680-719 794 1,103 788 363 603 4,188 463 215 8,517 640-679 129 294 222 107 143 2,117 213 135 3,360 600-639 30 47 75 37 51 1,234 109 93 1,676 < 600 7 11 28 16 32 1,303 139 145 1,681 No FICO available 47 145 110 69 98 1,776 237 384 2,866 Government insured/guaranteed loans (1) 3 193 364 566 635 18,470 — — 20,231 Total residential mortgage – first lien 30,528 47,707 32,516 10,741 18,350 96,470 6,134 1,925 244,371 Residential mortgage – junior lien 800+ — — — — — 236 6,715 1,612 8,563 760-799 — — — — — 142 2,588 906 3,636 720-759 — — — — — 169 1,721 891 2,781 680-719 — — — — — 143 1,022 719 1,884 640-679 — — — — — 82 396 405 883 600-639 — — — — — 52 189 232 473 < 600 — — — — — 53 195 267 515 No FICO available 13 22 35 35 28 95 394 280 902 Total residential mortgage – junior lien 13 22 35 35 28 972 13,220 5,312 19,637 Credit card 800+ — — — — — — 3,987 1 3,988 760-799 — — — — — — 5,561 8 5,569 720-759 — — — — — — 7,825 30 7,855 680-719 — — — — — — 8,437 57 8,494 640-679 — — — — — — 5,122 56 5,178 600-639 — — — — — — 1,929 39 1,968 < 600 — — — — — — 1,819 56 1,875 No FICO available — — — — — — 8 1 9 Total credit card — — — — — — 34,688 248 34,936 Auto 800+ 2,576 2,329 2,157 941 509 271 — — 8,783 760-799 2,505 2,698 2,145 850 390 216 — — 8,804 720-759 2,430 2,721 1,999 825 387 251 — — 8,613 680-719 2,518 2,965 1,968 772 358 259 — — 8,840 640-679 2,267 2,548 1,400 527 257 222 — — 7,221 600-639 1,418 1,519 822 333 178 190 — — 4,460 < 600 775 1,313 993 498 288 362 — — 4,229 No FICO available — 29 46 11 13 24 — — 123 Total auto 14,489 16,122 11,530 4,757 2,380 1,795 — — 51,073 Other consumer 800+ 253 250 204 59 18 60 1,839 19 2,702 760-799 265 225 186 59 15 31 943 22 1,746 720-759 190 184 175 67 19 26 829 28 1,518 680-719 115 125 147 61 19 21 711 26 1,225 640-679 47 52 74 34 12 11 343 19 592 600-639 9 14 24 13 5 6 122 11 204 < 600 3 13 27 16 6 7 121 14 207 No FICO available 101 132 164 30 63 16 1,197 29 1,732 FICO not required — — — — — — 15,935 — 15,935 Total other consumer 983 995 1,001 339 157 178 22,040 168 25,861 Total consumer loans $ 46,013 64,846 45,082 15,872 20,915 99,415 76,082 7,653 375,878 (continued on following page) (continued from previous page) Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2020 2019 2018 2017 2016 Prior Total December 31, 2020 By FICO: Residential mortgage – first lien 800+ $ 29,365 28,652 9,911 17,416 22,215 40,440 3,391 493 151,883 760-799 17,154 9,866 2,908 4,380 4,955 10,843 1,361 274 51,741 720-759 5,274 3,290 1,189 1,829 2,106 7,001 879 265 21,833 680-719 1,361 1,084 490 678 831 4,403 520 221 9,588 640-679 376 287 148 192 226 2,385 241 154 4,009 600-639 55 56 44 56 92 1,429 127 106 1,965 < 600 14 29 36 44 66 1,789 162 175 2,315 No FICO available 136 135 87 125 161 1,831 253 372 3,100 Government insured/guaranteed loans (1) 215 639 904 1,076 2,367 25,039 — — 30,240 Total residential mortgage – first lien 53,950 44,038 15,717 25,796 33,019 95,160 6,934 2,060 276,674 Residential mortgage – junior lien 800+ — — — — — 293 7,973 1,819 10,085 760-799 — — — — — 177 3,005 1,032 4,214 720-759 — — — — — 207 2,093 1,034 3,334 680-719 — — — — — 183 1,233 854 2,270 640-679 — — — — — 103 503 493 1,099 600-639 — — — — — 67 241 299 607 < 600 — — — — — 76 254 374 704 No FICO available 22 39 41 39 32 83 441 276 973 Total residential mortgage – junior lien 22 39 41 39 32 1,189 15,743 6,181 23,286 Credit card 800+ — — — — — — 3,860 1 3,861 760-799 — — — — — — 5,438 7 5,445 720-759 — — — — — — 7,897 29 7,926 680-719 — — — — — — 8,854 60 8,914 640-679 — — — — — — 5,657 64 5,721 600-639 — — — — — — 2,242 46 2,288 < 600 — — — — — — 2,416 82 2,498 No FICO available — — — — — — 10 1 11 Total credit card — — — — — — 36,374 290 36,664 Auto 800+ 2,875 2,606 1,211 731 452 104 — — 7,979 760-799 3,036 2,662 1,122 579 349 81 — — 7,829 720-759 3,162 2,514 1,095 576 395 98 — — 7,840 680-719 3,534 2,542 1,066 545 400 105 — — 8,192 640-679 3,381 1,948 763 395 334 94 — — 6,915 600-639 2,208 1,165 479 274 276 87 — — 4,489 < 600 1,581 1,357 730 463 533 186 — — 4,850 No FICO available 13 37 5 10 18 10 — — 93 Total auto 19,790 14,831 6,471 3,573 2,757 765 — — 48,187 Other consumer 800+ 353 287 94 35 10 71 2,249 21 3,120 760-799 342 279 93 29 10 34 1,110 16 1,913 720-759 262 258 107 35 11 30 915 26 1,644 680-719 156 213 99 36 11 24 798 31 1,368 640-679 71 112 59 21 7 10 415 23 718 600-639 18 36 22 9 4 8 151 13 261 < 600 13 41 30 12 5 7 161 18 287 No FICO available 195 173 83 88 3 16 1,248 43 1,849 FICO not required — — — — — — 13,249 — 13,249 Total other consumer 1,410 1,399 587 265 61 200 20,296 191 24,409 Total consumer loans $ 75,172 60,307 22,816 29,673 35,869 97,314 79,347 8,722 409,220 (1) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
Consumer Loan Categories by LTV/CLTV and Vintage	Table 4.11 shows the most updated LTV and CLTV distribution of the residential mortgage – first lien and residential mortgage – junior lien loan portfolios. We consider the trends in residential real estate markets as we monitor credit risk and establish our ACL. 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 4.11: Consumer Loan Categories by LTV/CLTV and Vintage Term loans by origination year Revolving loans Revolving loans converted to term loans (in millions) 2021 2020 2019 2018 2017 Prior Total June 30, 2021 Residential mortgage – first lien By LTV: 0-60% $ 9,789 18,204 14,733 5,341 11,884 66,680 4,604 1,567 132,802 60.01-80% 20,654 27,433 15,773 4,339 5,369 10,096 1,071 256 84,991 80.01-100% 40 1,720 1,498 416 382 801 304 68 5,229 100.01-120% (1) — 35 52 19 16 101 72 17 312 > 120% (1) — 21 17 6 7 50 30 6 137 No LTV available 42 101 79 54 57 272 53 11 669 Government insured/guaranteed loans (2) 3 193 364 566 635 18,470 — — 20,231 Total residential mortgage – first lien 30,528 47,707 32,516 10,741 18,350 96,470 6,134 1,925 244,371 Residential mortgage – junior lien By CLTV: 0-60% — — — — — 496 8,124 3,558 12,178 60.01-80% — — — — — 254 3,718 1,178 5,150 80.01-100% — — — — — 123 1,051 424 1,598 100.01-120% (2) — — — — — 31 225 92 348 > 120% (2) — — — — — 8 78 28 114 No CLTV available 13 22 35 35 28 60 24 32 249 Total residential mortgage – junior lien 13 22 35 35 28 972 13,220 5,312 19,637 Total $ 30,541 47,729 32,551 10,776 18,378 97,442 19,354 7,237 264,008 Term loans by origination year Revolving loans Revolving loans converted to term loans 2020 2019 2018 2017 2016 Prior Total December 31, 2020 Residential mortgage – first lien By LTV: 0-60% $ 16,582 15,449 6,065 13,190 21,097 59,291 4,971 1,587 138,232 60.01-80% 34,639 24,736 7,724 10,745 8,970 9,333 1,323 326 97,796 80.01-100% 2,332 2,975 900 654 441 1,003 425 100 8,830 100.01-120% (1) 41 106 45 40 41 168 117 26 584 > 120% (1) 31 41 16 19 16 78 44 8 253 No LTV available 110 92 63 72 87 248 54 13 739 Government insured/guaranteed loans (2) 215 639 904 1,076 2,367 25,039 — — 30,240 Total residential mortgage – first lien 53,950 44,038 15,717 25,796 33,019 95,160 6,934 2,060 276,674 Residential mortgage – junior lien By CLTV: 0-60% — — — — — 548 8,626 3,742 12,916 60.01-80% — — — — — 335 5,081 1,554 6,970 80.01-100% — — — — — 187 1,507 641 2,335 100.01-120% (2) — — — — — 59 376 156 591 > 120% (2) — — — — — 15 128 50 193 No CLTV available 22 39 41 39 32 45 25 38 281 Total residential mortgage – junior lien 22 39 41 39 32 1,189 15,743 6,181 23,286 Total $ 53,972 44,077 15,758 25,835 33,051 96,349 22,677 8,241 299,960 (1) Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV. (2) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
Nonaccrual Loans	Table 4.12 provides loans on nonaccrual status. In connection with our adoption of CECL, nonaccrual loans may have an ACL or a negative allowance for credit losses from expected recoveries of amounts previously written off. Payment deferral activities instituted in response to the COVID-19 pandemic could continue to delay the recognition of delinquencies for customers who otherwise would have moved into nonaccrual status. Table 4.12: Nonaccrual Loans Amortized cost Recognized interest income Nonaccrual loans Nonaccrual loans without related allowance for credit losses (1) Six months ended June 30, (in millions) Jun 30, Dec 31, Jun 30, Dec 31, 2021 2020 Commercial: Commercial and industrial $ 1,691 2,698 464 382 45 30 Real estate mortgage 1,598 1,774 201 93 33 17 Real estate construction 45 48 13 15 1 5 Lease financing 215 259 40 16 — — Total commercial 3,549 4,779 718 506 79 52 Consumer: Residential mortgage- first lien 2,852 2,957 1,949 1,908 56 81 Residential mortgage- junior lien 713 754 463 461 25 28 Auto 221 202 — — 17 7 Other consumer 36 36 — — 1 1 Total consumer 3,822 3,949 2,412 2,369 99 117 Total nonaccrual loans $ 7,371 8,728 3,130 2,875 178 169 (1) 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 4.13 shows loans 90 days or more past due and still accruing by class for loans not government insured/guaranteed. Table 4.13: Loans 90 Days or More Past Due and Still Accruing ($ in millions) Jun 30, Dec 31, Total: $ 4,703 7,041 Less: FHA insured/VA guaranteed (1) 3,966 6,351 Total, not government insured/guaranteed $ 737 690 By segment and class, not government insured/guaranteed: Commercial: Commercial and industrial $ 165 39 Real estate mortgage 105 38 Real estate construction 7 1 Total commercial 277 78 Consumer: Residential mortgage – first lien 73 135 Residential mortgage – junior lien 12 19 Credit card 271 365 Auto 43 65 Other consumer 61 28 Total consumer 460 612 Total, not government insured/guaranteed $ 737 690 (1) Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
TDR Modifications	Table 4.14 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 are paid off or written-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 4.14: TDR Modifications Primary modification type (1) Financial effects of modifications ($ in millions) Principal forgiveness Interest Other concessions (2) Total Charge- Weighted Recorded Quarter ended June 30, 2021 Commercial: Commercial and industrial $ — 1 330 331 14 1.22 % $ 1 Real estate mortgage 41 5 86 132 — 1.15 5 Real estate construction — — 2 2 — — — Lease financing — — 1 1 — — — Total commercial 41 6 419 466 14 1.17 6 Consumer: Residential mortgage – first lien — 8 353 361 1 1.26 8 Residential mortgage – junior lien — 2 9 11 — 2.51 2 Credit card — 24 — 24 — 19.02 24 Auto 1 1 72 74 30 3.93 1 Other consumer — 4 — 4 — 12.02 4 Trial modifications (5) — — 2 2 — — — Total consumer 1 39 436 476 31 13.24 39 Total $ 42 45 855 942 45 11.68 % $ 45 Quarter ended June 30, 2020 Commercial: Commercial and industrial $ — 17 948 965 38 0.79 % $ 17 Real estate mortgage — 5 98 103 — 1.75 5 Real estate construction — — — — — — — Lease financing — — 1 1 — — — Total commercial — 22 1,047 1,069 38 1.00 22 Consumer: Residential mortgage – first lien — 14 288 302 1 1.84 14 Residential mortgage – junior lien — 3 24 27 — 2.39 3 Credit card — 62 — 62 — 12.79 62 Auto 1 2 44 47 28 4.42 2 Other consumer — 3 6 9 — 5.90 3 Trial modifications (5) — — (13) (13) — — — Total consumer 1 84 349 434 29 10.09 84 Total $ 1 106 1,396 1,503 67 8.17 % $ 106 (continued on following page) (continued from previous page) Primary modification type (1) Financial effects of modifications ($ in millions) Principal forgiveness Interest Other Total Charge- Weighted Recorded Six months ended June 30, 2021 Commercial: Commercial and industrial $ — 2 560 562 20 1.10 % $ 2 Real estate mortgage 41 9 186 236 — 1.04 9 Real estate construction — — 3 3 — — — Lease financing — — 4 4 — — — Total commercial 41 11 753 805 20 1.05 11 Consumer: Residential mortgage – first lien — 15 885 900 1 1.53 15 Residential mortgage – junior lien — 7 22 29 1 2.44 7 Credit card — 56 — 56 — 18.93 56 Auto 1 2 86 89 37 3.90 2 Other consumer — 11 1 12 — 12.14 11 Trial modifications (5) — — 2 2 — — — Total consumer 1 91 996 1,088 39 13.67 91 Total $ 42 102 1,749 1,893 59 12.31 % $ 102 Six months ended June 30, 2020 Commercial: Commercial and industrial $ 18 32 1,262 1,312 82 0.73 % $ 32 Real estate mortgage — 18 250 268 — 1.17 18 Real estate construction — — 6 6 — 2.49 — Lease financing — — 1 1 — — — Total commercial 18 50 1,519 1,587 82 0.90 50 Consumer: Residential mortgage – first lien — 31 461 492 1 1.73 31 Residential mortgage – junior lien — 9 39 48 — 2.38 9 Credit card — 157 — 157 — 12.51 157 Auto 3 4 54 61 34 4.56 4 Other consumer — 15 8 23 — 7.71 15 Trial modifications (5) — — (11) (11) — — — Total consumer 3 216 551 770 35 10.04 216 Total $ 21 266 2,070 2,357 117 8.30 % $ 266 (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 $202 million and $221 million for the quarters ended June 30, 2021 and 2020, respectively, and $458 million and $484 million for the first half of 2021 and 2020, respectively. (2) Other concessions include loans with payment (principal and/or interest) deferral, 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. The reported amounts include COVID-related payment deferrals that are new TDRs and exclude COVID-related payment deferrals previously reported as TDRs given limited current financial effects other than payment deferral. (3) 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. (4) Recorded investment related to interest rate reduction reflects the effect of reduced interest rates on loans with an interest rate concession as one of their concession types, which includes loans reported as a principal primary modification type that also have an interest rate concession. (5) 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 4.15 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 4.15: Defaulted TDRs Recorded investment of defaults Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Commercial: Commercial and industrial $ 84 37 125 222 Real estate mortgage 9 81 25 102 Real estate construction — — — — Lease financing — — — — Total commercial 93 118 150 324 Consumer: Residential mortgage – first lien 2 8 5 18 Residential mortgage – junior lien — 6 1 8 Credit card 6 19 16 45 Auto 12 1 23 3 Other consumer — 2 1 3 Total consumer 20 36 46 77 Total $ 113 154 196 401

Leasing Activity (Tables)

Leasing Activity (Tables)	6 Months Ended
	Jun. 30, 2021
Lessor Disclosure [Abstract]
Leasing Revenue	Noninterest income on leases, which is presented in Table 5.1, is included in other noninterest income on our consolidated statement of income. Lease expense, included in other noninterest expense on our consolidated statement of income, was $226 million and $244 million for the quarters ended June 30, 2021 and 2020, respectively, and $452 million and $504 million for the first half of 2021 and 2020, respectively. Table 5.1: Leasing Revenue Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Interest income on lease financing (1) $ 172 208 353 437 Other lease revenues: Variable revenues on lease financing 25 26 51 54 Fixed revenues on operating leases 254 294 514 608 Variable revenues on operating leases 18 12 36 25 Other lease-related revenues (2) 16 3 27 1 Noninterest income on leases 313 335 628 688 Total leasing revenue $ 485 543 981 1,125 (1) In second quarter 2021, we elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). (2) 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 5.2 presents balances for our operating leases. Table 5.2: Operating Lease Right of Use (ROU) Assets and Lease Liabilities (in millions) Jun 30, 2021 Dec 31, 2020 ROU assets $ 4,053 4,306 Lease liabilities 4,705 4,962
Lease Costs	Table 5.3 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 5.3: Lease Costs Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Fixed lease expense – operating leases $ 265 292 530 583 Variable lease expense 69 80 147 146 Other (1) (28) (42) (31) (56) Total lease costs $ 306 330 646 673

Equity Securities (Tables)

Equity Securities (Tables)	6 Months Ended
	Jun. 30, 2021
Equity Securities [Abstract]
Equity Securities	Table 6.1 provides a summary of our equity securities by business purpose and accounting method. Table 6.1: Equity Securities (in millions) Jun 30, Dec 31, Held for trading at fair value: Marketable equity securities (1) $ 23,701 23,032 Not held for trading: Fair value: Marketable equity securities 1,624 1,564 Nonmarketable equity securities (2) 10,006 9,413 Total equity securities at fair value 11,630 10,977 Equity method: Private equity 2,897 2,960 Tax-advantaged renewable energy (3) 3,853 3,481 New market tax credit and other 378 409 Total equity method 7,128 6,850 Other methods : Low-income housing tax credit investments (3) 11,439 11,353 Federal Reserve Bank stock and other at cost (4) 3,585 3,588 Private equity (5) 7,064 4,208 Total equity securities not held for trading 40,846 36,976 Total equity securities $ 64,547 60,008 (1) Represents securities held as part of our customer accommodation trading activities. For additional information on these activities, see Note 2 (Trading Activities). (2) Substantially all of these securities are economically hedged with equity derivatives. (3) In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). (4) Substantially all relates to investments in Federal Reserve Bank stock at both June 30, 2021, and December 31, 2020. (5) Represents nonmarketable equity securities accounted for under the measurement alternative, which were predominantly securities associated with our affiliated venture capital business.
LIHTC Investments	Table 6.2 summarizes the amortization of the investments and the related tax credits and other tax benefits that are recognized in income tax expense/(benefit) on our consolidated statement of income. 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 both June 30, 2021, and December 31, 2020. This liability for unfunded commitments is included in long-term debt on our consolidated balance sheet. Table 6.2: LIHTC Investments (1) Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Proportional amortization of investments $ 382 352 764 703 Tax credits and other tax benefits (431) (401) (875) (797) Net expense/(benefit) recognized within income tax expense $ (49) (49) (111) (94) (1) Excludes the impact of the estimated annual effective income tax rate applied to each period.
Net Gains (Losses) from Equity Securities Not Held for Trading	Table 6.3 provides a summary of the net gains and losses from equity securities not held for trading, which excludes equity method adjustments for our share of the investee’s earnings or losses that are recognized in other noninterest income. Gains and losses for securities held for trading are reported in net gains on trading and securities. Table 6.3: Net Gains (Losses) from Equity Securities Not Held for Trading Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ 74 394 $ 134 (409) Nonmarketable equity securities 893 1,424 535 320 Total equity securities carried at fair value 967 1,818 669 (89) Net gains (losses) from nonmarketable equity securities not carried at fair value (1): Impairment write-downs (42) (106) (57) (1,041) Net unrealized gains related to measurement alternative observable transactions 2,037 24 2,262 246 Net realized gains on sale 496 199 551 199 Total nonmarketable equity securities not carried at fair value 2,491 117 2,756 (596) Net losses from economic hedge derivatives (2) (762) (1,402) (337) (183) Total net gains (losses) from equity securities not held for trading $ 2,696 533 $ 3,088 (868) (1) Includes impairment write-downs and net realized gains on sale related to private equity and venture capital investments in consolidated portfolio companies, which are not reported in equity securities on our consolidated balance sheet. (2) Includes net gains (losses) on derivatives not designated as hedging instruments.
Net Gains (Losses) from Measurement Alternative Equity Securities	Table 6.4 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 6.3. Table 6.4: Net Gains (Losses) from Measurement Alternative Equity Securities Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 2,037 24 $ 2,262 246 Impairment write-downs (38) (58) (50) (412) Realized net gains from sale 195 11 195 13 Total net gains recognized during the period $ 2,194 $ (23) $ 2,407 (153)
Measurement Alternative Cumulative Gains (Losses)	Table 6.5 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 6.5: Measurement Alternative Cumulative Gains (Losses) (in millions) Jun 30, Dec 31, Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 4,577 2,356 Gross unrealized losses due to observable price changes (25) (25) Impairment write-downs (1,008) (969)

Other Assets (Tables)

Other Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Other Assets [Abstract]
Other Assets	Table 7.1 presents the components of other assets. Table 7.1: Other Assets (in millions) Jun 30, 2021 Dec 31, 2020 Corporate/bank-owned life insurance $ 20,488 20,380 Accounts receivable 24,372 38,116 Interest receivable: AFS and HTM debt securities 1,366 1,368 Loans 2,224 2,838 Trading and other 482 415 Customer relationship and other amortized intangibles 287 328 Foreclosed assets: Residential real estate 49 73 Other 80 86 Operating lease assets (lessor) 6,773 7,391 Operating lease ROU assets (lessee) 4,053 4,306 Due from customers on acceptances 144 268 Other 12,135 11,768 Total other assets $ 72,453 87,337

Securitizations and Variable _2

Securitizations and Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2021
Securitizations and Variable Interest Entities [Abstract]
Transfers With Continuing Involvement	Table 8.1 presents information about transfers of assets during the period for which we recorded the transfers as sales and have continuing involvement with the transferred assets. In connection with these transfers, we received proceeds and recorded servicing assets, securities, and loans. Substantially all transfers were related to residential mortgage securitizations with the GSEs or GNMA and resulted in no gain or loss because the loans were already measured at fair value on a recurring basis. Each of these interests are initially measured at fair value. Servicing rights are classified as Level 3 measurements, and generally securities are classified as Level 2. Table 8.1: Transfers with Continuing Involvement 2021 2020 (in millions) Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Quarter ended June 30, Assets sold $ 45,903 5,173 43,602 2,505 Proceeds from transfer (1) 46,230 5,227 43,605 2,569 Net gains (losses) on sale 327 54 3 64 Continuing involvement (2): Servicing rights recognized $ 487 24 443 48 Securities recognized (3) 6,171 39 590 12 Loans recognized — — — — Six months ended June 30, Asset balances sold $ 86,489 8,364 81,987 5,233 Proceeds from transfer (1) 86,921 8,509 82,025 5,366 Net gains (losses) on sale 432 145 38 133 Continuing involvement (2): Servicing rights recognized $ 894 71 889 82 Securities recognized (3) 16,394 68 590 74 Loans recognized 926 — — — (1) Represents cash proceeds and the fair value of non-cash beneficial interests recognized at securitization settlement. Prior periods have been revised to conform with the current period presentation. (2) Represents assets or liabilities recognized at securitization settlement date related to our continuing involvement in the transferred assets. (3) Represents debt securities obtained at securitization settlement held for investment purposes that are classified as available-for-sale or held-to-maturity, which predominantly relate to agency securities. Excludes trading debt securities held temporarily for market-marking purposes, which are sold to third parties at or shortly after securitization settlement, of $11.2 billion and $18.0 billion during the second quarter and first half of 2021, respectively, and $9.4 billion and $17.1 billion during the second quarter and first half of 2020, respectively.
Residential Mortgage Servicing Rights	Table 8.2 presents the key weighted-average assumptions we used to initially measure residential MSRs recognized during the periods presented. Table 8.2: Residential Mortgage Servicing Rights 2021 2020 Quarter ended June 30, Prepayment speed (1) 13.4 % 15.0 Discount rate 6.1 7.0 Cost to service ($ per loan) (2) $ 91 97 Six months ended June 30, Prepayment speed (1) 13.8 % 14.0 Discount rate 6.0 6.8 Cost to service ($ per loan) (2) $ 87 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.
Resecuritization VIEs	Table 8.3 presents information about assets transferred to re-securitization VIEs and Table 8.4 presents information about our resecuritization VIEs. Table 8.3: Transfers to Resecuritization VIEs (in millions) 2021 2020 Quarter ended June 30, Assets sold $ 7,873 19,982 Securities recognized (99) 153 Six months ended June 30, Assets sold $ 25,302 29,454 Securities recognized 915 815 Table 8.4: Resecuritization VIEs (in millions) Jun 30, 2021 Dec 31, 2020 Total VIE assets $ 125,543 130,446 Carrying value of securities 1,137 1,461
Off-Balance Sheet Loans Sold or Securitized	Table 8.5 presents information about the principal balances of off-balance sheet loans that were sold or securitized, including residential mortgage loans sold to the GSEs, 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. In accordance with applicable servicing guidelines, delinquency status continues to advance for loans with COVID-related payment deferrals. For loans sold or securitized where servicing is our only form of continuing involvement, we generally experience a loss only 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 8.5: Off-Balance Sheet Loans Sold or Securitized Net charge-offs (2) Total loans Delinquent loans and foreclosed assets (1) Six months ended June 30, (in millions) Jun 30, 2021 Dec 31, 2020 Jun 30, 2021 Dec 31, 2020 2021 2020 Commercial $ 116,704 114,134 2,363 2,217 122 83 Residential 738,698 818,886 20,869 29,962 12 59 Total off-balance sheet sold or securitized loans (3) $ 855,402 933,020 23,232 32,179 134 142 (1) Includes $203 million and $394 million of commercial foreclosed assets and $163 million and $204 million of residential foreclosed assets at June 30, 2021, and December 31, 2020, 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 June 30, 2021, and December 31, 2020, the table includes total loans of $784.3 billion and $864.8 billion, delinquent loans of $19.8 billion and $28.5 billion, and foreclosed assets of $124 million and $152 million, respectively, for FNMA, FHLMC and GNMA.
Unconsolidated VIEs	Table 8.6 provides a summary of our exposure to the unconsolidated VIEs described above, which includes investments in securities, loans, guarantees, liquidity agreements, commitments and certain derivatives. We exclude certain transactions with unconsolidated VIEs when our continuing involvement is temporary or administrative in nature or insignificant in size. In Table 8.6, “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 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. Debt, guarantees and other commitments include amounts related to loans sold that we may be required to repurchase, or otherwise indemnify or reimburse the investor or insurer for losses incurred, due to material breach of contractual representations and warranties as well as other retained recourse arrangements. The maximum exposure to loss for material breach of contractual representations and warranties represents a stressed case estimate we utilize for determining stressed case regulatory capital needs and is considered to be a remote scenario. “Maximum exposure to loss” 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. Table 8.6: Unconsolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt Equity securities All other Debt and other liabilities Net assets June 30, 2021 Nonconforming mortgage loan securitizations $ 134,023 — 2,401 — 663 — 3,064 Tax credit structures 41,058 1,875 — 11,448 — (4,218) 9,105 Commercial real estate loans 5,366 5,357 — — 8 — 5,365 Other 6,541 1,888 — 57 52 (1) 1,996 Total $ 186,988 9,120 2,401 11,505 723 (4,219) 19,530 Maximum exposure to loss Loans Debt Equity securities All other Debt, guarantees, Total exposure Nonconforming mortgage loan securitizations $ — 2,401 — 663 31 3,095 Tax credit structures 1,875 — 11,448 — 3,023 16,346 Commercial real estate loans 5,357 — — 8 712 6,077 Other 1,888 — 57 52 230 2,227 Total $ 9,120 2,401 11,505 723 3,996 27,745 Carrying value – asset (liability) (in millions) Total Loans Debt Equity All other Debt and other liabilities Net assets December 31, 2020 Nonconforming mortgage loan securitizations $ 127,717 — 2,303 — 606 — 2,909 Tax credit structures (3) 41,125 1,760 — 11,362 — (4,202) 8,920 Commercial real estate loans — — — — — — — Other 1,991 89 — 51 62 (1) 201 Total $ 170,833 1,849 2,303 11,413 668 (4,203) 12,030 Maximum exposure to loss Loans Debt Equity All other Debt, Total exposure Nonconforming mortgage loan securitizations $ — 2,303 — 607 34 2,944 Tax credit structures (3) 1,760 — 11,362 — 3,108 16,230 Commercial real estate loans — — — — — — Other 89 — 51 62 230 432 Total $ 1,849 2,303 11,413 669 3,372 19,606 (1) Includes $317 million and $310 million of securities classified as trading at June 30, 2021, and December 31, 2020, respectively. (2) All other assets includes mortgage servicing rights, derivative assets, and other assets (predominantly servicing advances). (3) In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
Transactions with Consolidated VIEs	Table 8.7 presents a summary of financial assets and liabilities of our consolidated VIEs. The carrying value represents assets and liabilities recorded on our consolidated balance sheet. 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 notional amount of the derivative is included in “Total VIE assets.” On our consolidated balance sheet, we separately disclose (1) the consolidated assets of certain VIEs that can only be used to settle the liabilities of those VIEs, and (2) the consolidated liabilities of certain VIEs for which the VIE creditors do not have recourse to Wells Fargo. Table 8.7: Transactions with Consolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt All other Long-term debt All other liabilities (3) June 30, 2021 Commercial and industrial loans and leases $ 6,981 3,623 — 238 — (183) Commercial real estate loans (4) — — — — — — Other 1,138 452 518 96 (178) (404) Total consolidated VIEs $ 8,119 4,075 518 334 (178) (587) December 31, 2020 Commercial and industrial loans and leases $ 6,987 5,005 — 223 — (200) Commercial real estate loans (4) 5,369 5,357 — 12 — — Other 1,627 507 967 75 (203) (900) Total consolidated VIEs $ 13,983 10,869 967 310 (203) (1,100) (1) Includes $117 million and $269 million of securities classified as trading at June 30, 2021, and December 31, 2020, respectively. (2) All other assets includes cash and due from banks, Interest-earning deposits with banks, derivative assets, equity securities, and other assets. (3) All other liabilities includes short-term borrowings, derivative liabilities, and accrued expenses and other liabilities. (4) For structure description, see the "Transactions with Unconsolidated VIEs" section within this Note. These consolidated VIEs were deconsolidated in first quarter 2021.

Mortgage Banking Activities (Ta

Mortgage Banking Activities (Tables)	6 Months Ended
	Jun. 30, 2021
Mortgage Banking Activities [Abstract]
Analysis of Changes in Fair Value MSRs	Table 9.1 presents the changes in MSRs measured using the fair value method. Table 9.1: Analysis of Changes in Fair Value MSRs Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Fair value, beginning of period $ 7,536 8,126 6,125 11,517 Servicing from securitizations or asset transfers (1) 485 462 891 923 Sales and other (2) (7) (1) (8) (32) Net additions 478 461 883 891 Changes in fair value: Due to valuation inputs or assumptions: Mortgage interest rates (3) (529) (600) 1,101 (3,622) Servicing and foreclosure costs (4) — (349) 9 (422) Discount rates 160 — 207 27 Prepayment estimates and other (5) (440) (182) (535) (371) Net changes in valuation inputs or assumptions (809) (1,131) 782 (4,388) Changes due to collection/realization of expected cash flows (6) (488) (637) (1,073) (1,201) Total changes in fair value (1,297) (1,768) (291) (5,589) Fair value, end of period $ 6,717 6,819 6,717 6,819 (1) Includes impacts associated with exercising cleanup calls on securitizations and our right to repurchase delinquent loans from GNMA loan securitization pools. 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 in MSRs if related to portfolios with servicing liabilities. (3) Includes prepayment speed changes as well as other valuation changes due to changes in mortgage interest rates. (4) Includes costs to service and unreimbursed foreclosure costs. (5) Represents other changes in valuation model inputs or assumptions including prepayment speed estimation changes that are independent of mortgage interest rate changes. (6) 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.
Economic Assumptions and Sensitivity of Residential MSRs	Table 9.2 provides key economic assumptions and sensitivity of the current fair value of residential MSRs 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 15 (Fair Values of Assets and Liabilities) for additional information on key economic assumptions for residential MSRs. Table 9.2: Economic Assumptions and Sensitivity of Residential MSRs ($ in millions, except cost to service amounts) Jun 30, 2021 Dec 31, 2020 Fair value of interests held $ 6,717 6,125 Expected weighted-average life (in years) 4.2 3.7 Key economic assumptions: Prepayment speed assumption 17.2 % 19.9 Impact on fair value from 10% adverse change $ 417 434 Impact on fair value from 25% adverse change 967 1,002 Discount rate assumption 5.4 % 5.8 Impact on fair value from 100 basis point increase $ 274 229 Impact on fair value from 200 basis point increase 525 440 Cost to service assumption ($ per loan) 111 130 Impact on fair value from 10% adverse change 171 181 Impact on fair value from 25% adverse change 427 454
Managed Servicing Portfolio	We present the components of our managed servicing portfolio in Table 9.3 at unpaid principal balance for loans serviced and subserviced for others and at book value for owned loans serviced. Table 9.3: Managed Servicing Portfolio (in billions) Jun 30, 2021 Dec 31, 2020 Residential mortgage servicing: Serviced and subserviced for others $ 771 859 Owned loans serviced 284 323 Total residential servicing 1,055 1,182 Commercial mortgage servicing: Serviced and subserviced for others 584 583 Owned loans serviced 123 123 Total commercial servicing 707 706 Total managed servicing portfolio $ 1,762 1,888 Total serviced for others, excluding subserviced for others $ 1,344 1,431 MSRs as a percentage of loans serviced for others 0.60 % 0.52 Weighted average note rate (mortgage loans serviced for others) 3.93 4.03
Mortgage Banking Noninterest Income	Table 9.4 presents the components of mortgage banking noninterest income. Table 9.4: Mortgage Banking Noninterest Income Quarter ended June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Servicing fees: Contractually specified servicing fees, late charges and ancillary fees $ 692 749 1,416 1,614 Unreimbursed direct servicing costs (1) (90) (105) (214) (212) Servicing fees 602 644 1,202 1,402 Amortization (2) (33) (100) (98) (166) Changes due to collection/realization of expected cash flows (3) (A) (488) (637) (1,073) (1,201) Net servicing fees 81 (93) 31 35 Changes in fair value of MSRs due to valuation inputs or assumptions (4) (B) (809) (1,131) 782 (4,388) Net derivative gains (losses) from economic hedges (5) 707 535 (933) 3,935 Market-related valuation changes to MSRs, net of hedge results (102) (596) (151) (453) Total servicing income, net (21) (689) (120) (418) Net gains on mortgage loan originations/sales (6) 1,357 1,006 2,782 1,114 Total mortgage banking noninterest income $ 1,336 317 2,662 696 Total changes in fair value of MSRs carried at fair value (A)+(B) $ (1,297) (1,768) (291) (5,589) (1) Includes costs associated with foreclosures, unreimbursed interest advances to investors, and other interest costs. (2) Includes a $37 million reversal of impairment recorded in the second quarter and first half of 2021, on the commercial amortized MSRs. Also, includes $30 million impairment recorded in the second quarter and first half of 2020, on the commercial amortized MSRs. (3) 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. (4) Refer to the analysis of changes in fair value MSRs presented in Table 9.1 in this Note for more detail. (5) See Note 14 (Derivatives) for additional discussion and detail on economic hedges. (6) Includes net gains (losses) of $(420) million and $845 million in the second quarter and first half of 2021, respectively, and $(393) million and $(1.3) billion in the second quarter and first half of 2020, respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Table 10.1 presents the gross carrying value of intangible assets and accumulated amortization. Table 10.1: Intangible Assets June 30, 2021 December 31, 2020 (in millions) Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value Amortized intangible assets (1): MSRs (2) $ 4,690 (3,398) 1,292 4,612 (3,300) 1,312 Customer relationship and other intangibles 879 (592) 287 879 (551) 328 Total amortized intangible assets $ 5,569 (3,990) 1,579 5,491 (3,851) 1,640 Unamortized intangible assets: MSRs (carried at fair value) $ 6,717 6,125 Goodwill 26,194 26,392 Trademark 14 14 (1) Balances are excluded commencing in the period following full amortization. (2) Includes a $5 million and $37 million valuation allowance recorded for amortized MSRs at June 30, 2021, and December 31, 2020, respectively. See Note 9 (Mortgage Banking Activities) for additional information on MSRs.
Amortization Expense for Intangible Assets	Table 10.2 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 June 30, 2021. Future amortization expense may vary from these projections. Table 10.2: Amortization Expense for Intangible Assets (in millions) Amortized MSRs Customer relationship and other intangibles Total Six months ended June 30, 2021 (actual) $ 98 41 139 Estimate for the remainder of 2021 $ 127 40 167 Estimate for year ended December 31, 2022 232 68 300 2023 203 59 262 2024 177 48 225 2025 152 39 191 2026 117 32 149
Goodwill	Table 10.3 shows the allocation of goodwill to our reportable operating segments. Table 10.3: Goodwill (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Consolidated Company December 31, 2020 $ 16,418 3,018 5,375 1,276 305 26,392 Divestitures — — — — (201) (201) Foreign currency translation — 3 — — — 3 Transfers of goodwill — (80) — (932) 1,012 — June 30, 2021 $ 16,418 2,941 5,375 344 1,116 26,194

Guarantees and Other Commitme_2

Guarantees and Other Commitments (Tables)	6 Months Ended
	Jun. 30, 2021
Guarantees [Abstract]
Guarantees - Carrying Value and Maximum Exposure to Loss	Table 11.1 shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts. Table 11.1: 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 June 30, 2021 Standby letters of credit $ 132 12,639 4,838 1,927 457 19,861 6,873 Direct pay letters of credit 10 1,927 2,544 368 43 4,882 1,140 Written options (1) (548) 12,943 6,278 723 58 20,002 13,666 Loans and LHFS sold with recourse (2) 30 89 826 3,010 9,323 13,248 11,216 Exchange and clearing house guarantees — — — — 5,243 5,243 — Other guarantees and indemnifications (3) 1 629 3 — 239 871 570 Total guarantees $ (375) 28,227 14,489 6,028 15,363 64,107 33,465 December 31, 2020 Standby letters of credit $ 156 11,977 4,962 1,897 433 19,269 7,528 Direct pay letters of credit 18 2,256 2,746 531 39 5,572 1,102 Written options (1) (538) 12,735 7,972 889 58 21,654 13,394 Loans and LHFS sold with recourse (2) 33 177 819 1,870 9,723 12,589 10,332 Exchange and clearing house guarantees — — — — 5,510 5,510 — Other guarantees and indemnifications (3) — 734 1 1 1,414 2,150 590 Total guarantees $ (331) 27,879 16,500 5,188 17,177 66,744 32,946 (1) Written options, which are in the form of derivatives, are also included in the derivative disclosures in Note 14 (Derivatives). Carrying value net asset position is a result of certain deferred premium option trades. (2) Represents recourse provided, all to the GSEs, on loans sold under various programs and arrangements. (3) Includes indemnifications provided to certain third-party clearing agents. Estimated maximum exposure to loss was $210 million and $1.4 billion with related collateral of $2.1 billion and $1.2 billion as of June 30, 2021, and December 31, 2020, respectively.

Pledged Assets and Collateral (

Pledged Assets and Collateral (Tables)	6 Months Ended
	Jun. 30, 2021
Transfers and Servicing [Abstract]
Pledged Assets	Table 12.1 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 consolidated 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. All of the collateral we pledge related to trading activity 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 financial assets to secure trust and public deposits, borrowings and letters of credit from the Federal Home Loan Bank (FHLB) and the Board of Governors of the Federal Reserve System (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 consolidated balance sheet which represent certain delinquent loans that are eligible for repurchase from GNMA loan securitizations. See Note 8 (Securitizations and Variable Interest Entities) for additional information on consolidated VIE assets. Table 12.1: Pledged Assets (in millions) Jun 30, Dec 31, Related to trading activities: Repledged third-party owned debt and equity securities $ 37,134 44,765 Trading debt securities and other 18,362 19,572 Equity securities 704 470 Total pledged assets related to trading activities 56,200 64,807 Related to non-trading activities: Loans 308,551 344,220 Debt securities: Available-for-sale 59,512 57,289 Held-to-maturity 11,552 17,290 Other financial assets 531 230 Total pledged assets related to non-trading activities 380,146 419,029 Related to VIEs: Consolidated VIE assets 4,927 12,146 Loans eligible for repurchase from GNMA securitizations 130 179 Total pledged assets related to VIEs 5,057 12,325 Total pledged assets $ 441,403 496,161
Offsetting - Securities Financing Activities	In addition to the amounts included in Table 12.2, we also have balance sheet netting related to derivatives that is disclosed in Note 14 (Derivatives). Table 12.2: Offsetting – Securities Financing Activities (in millions) Jun 30, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 101,027 92,446 Gross amounts offset in consolidated balance sheet (1) (13,845) (11,513) Net amounts in consolidated balance sheet (2) 87,182 80,933 Collateral not recognized in consolidated balance sheet (3) (86,453) (80,158) Net amount (4) $ 729 775 Liabilities: Repurchase and securities lending agreements Gross amounts recognized $ 47,281 57,622 Gross amounts offset in consolidated balance sheet (1) (13,844) (11,513) Net amounts in consolidated balance sheet (5) 33,437 46,109 Collateral pledged but not netted in consolidated balance sheet (6) (33,177) (45,819) Net amount (4) $ 260 290 (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 $70.1 billion and $65.6 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at June 30, 2021, and December 31, 2020, respectively. Also includes securities purchased under long-term resale agreements (generally one year or more) classified in loans, which totaled $17.1 billion and $15.3 billion, at June 30, 2021, and December 31, 2020, 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 June 30, 2021, and December 31, 2020, we have received total collateral with a fair value of $118.9 billion and $108.5 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 $34.5 billion and $36.1 billion at June 30, 2021, and December 31, 2020, respectively. (4) Represents the amount of our exposure (assets) or obligation (liabilities) that is not collateralized and/or is not subject to an enforceable MRA or MSLA. (5) Amount is classified in short-term borrowings on our consolidated balance sheet.
Gross Obligations by Underlying Collateral Type and Contractual Maturities of Gross Obligations	Table 12.3 provides the gross amounts recognized on the consolidated balance sheet (before the effects of offsetting) of our liabilities for repurchase and securities lending agreements disaggregated by underlying collateral type. Table 12.3: Gross Obligations by Underlying Collateral Type (in millions) Jun 30, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 19,730 22,922 Securities of U.S. States and political subdivisions 24 4 Federal agency mortgage-backed securities 8,029 15,353 Non-agency mortgage-backed securities 860 1,069 Corporate debt securities 10,047 9,944 Asset-backed securities 1,262 1,054 Equity securities 892 1,500 Other 783 336 Total repurchases 41,627 52,182 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 42 64 Federal agency mortgage-backed securities 31 23 Corporate debt securities 45 79 Equity securities (1) 5,422 5,189 Other 114 85 Total securities lending 5,654 5,440 Total repurchases and securities lending $ 47,281 57,622 (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 12.4 provides the contractual maturities of our gross obligations under repurchase and securities lending agreements. Table 12.4: Contractual Maturities of Gross Obligations (in millions) Overnight/continuous Up to 30 days 30-90 days >90 days Total gross obligation June 30, 2021 Repurchase agreements $ 28,584 3,093 4,765 5,185 41,627 Securities lending arrangements 4,853 200 601 — 5,654 Total repurchases and securities lending (1) $ 33,437 3,293 5,366 5,185 47,281 December 31, 2020 Repurchase agreements $ 36,946 5,251 5,100 4,885 52,182 Securities lending arrangements 4,690 400 350 — 5,440 Total repurchases and securities lending (1) $ 41,636 5,651 5,450 4,885 57,622 (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)	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional or Contractual Amounts and Fair Values of Derivatives	Table 14.1 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 our consolidated 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 14.1: Notional or Contractual Amounts and Fair Values of Derivatives June 30, 2021 December 31, 2020 Notional or Fair value Notional or Fair value contractual Derivative Derivative contractual Derivative Derivative (in millions) amount assets liabilities amount assets liabilities Derivatives designated as hedging instruments Interest rate contracts $ 166,843 2,428 529 184,090 3,212 789 Foreign exchange contracts 39,001 1,143 504 47,331 1,381 607 Total derivatives designated as qualifying hedging instruments 3,571 1,033 4,593 1,396 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts 231,356 251 161 261,159 341 344 Equity contracts 27,740 1,582 392 25,997 1,363 490 Foreign exchange contracts 53,396 372 1,292 47,106 331 1,515 Credit contracts 72 26 — 73 31 — Subtotal 2,231 1,845 2,066 2,349 Customer accommodation trading and other derivatives: Interest rate contracts 9,256,224 24,068 18,785 7,947,941 32,510 25,169 Commodity contracts 76,612 7,234 2,309 65,790 2,036 1,543 Equity contracts 322,733 17,697 21,126 280,195 17,522 21,516 Foreign exchange contracts 415,458 6,177 4,505 412,879 6,891 6,034 Credit contracts 36,179 49 50 34,329 64 58 Subtotal 55,225 46,775 59,023 54,320 Total derivatives not designated as hedging instruments 57,456 48,620 61,089 56,669 Total derivatives before netting 61,027 49,653 65,682 58,065 Netting (35,612) (35,102) (39,836) (41,556) Total $ 25,415 14,551 25,846 16,509
Gross Fair Values of Derivative Assets and Liabilities	Table 14.2 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 consolidated 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 consolidated balance sheet. The “Gross amounts recognized” column in the following table includes $52.9 billion and $44.7 billion of gross derivative assets and liabilities, respectively, at June 30, 2021, and $54.6 billion and $50.1 billion, respectively, at December 31, 2020, 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 $8.1 billion and $5.0 billion, respectively, at June 30, 2021, and $11.1 billion and $8.0 billion, respectively, at December 31, 2020, 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 consolidated balance sheet for these counterparties. Cash collateral receivables and payables that have not been offset against our derivatives were $2.6 billion and $828 million, respectively, at June 30, 2021, and $1.8 billion and $984 million, respectively, at December 31, 2020. 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 our consolidated 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 14.2 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. The proportion of these derivative contracts relative to our total derivative assets and liabilities are presented in the “Percent exchanged in over-the-counter market” column in Table 14.2. 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 12 (Pledged Assets and Collateral). Table 14.2: 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 June 30, 2021 Derivative assets Interest rate contracts $ 26,747 (16,711) 10,036 (680) 9,356 97 % Commodity contracts 7,234 (1,481) 5,753 (14) 5,739 92 Equity contracts 19,279 (11,488) 7,791 (766) 7,025 69 Foreign exchange contracts 7,692 (5,892) 1,800 (28) 1,772 100 Credit contracts 75 (40) 35 (1) 34 90 Total derivative assets $ 61,027 (35,612) 25,415 (1,489) 23,926 Derivative liabilities Interest rate contracts $ 19,475 (16,453) 3,022 (1,524) 1,498 96 % Commodity contracts 2,309 (1,086) 1,223 (17) 1,206 50 Equity contracts 21,518 (12,956) 8,562 (749) 7,813 79 Foreign exchange contracts 6,301 (4,574) 1,727 (423) 1,304 100 Credit contracts 50 (33) 17 (3) 14 90 Total derivative liabilities $ 49,653 (35,102) 14,551 (2,716) 11,835 December 31, 2020 Derivative assets Interest rate contracts $ 36,063 (21,968) 14,095 (1,274) 12,821 96 % Commodity contracts 2,036 (940) 1,096 (4) 1,092 84 Equity contracts 18,885 (10,968) 7,917 (737) 7,180 74 Foreign exchange contracts 8,603 (5,887) 2,716 (141) 2,575 100 Credit contracts 95 (73) 22 (1) 21 90 Total derivative assets $ 65,682 (39,836) 25,846 (2,157) 23,689 Derivative liabilities Interest rate contracts $ 26,302 (21,934) 4,368 (2,219) 2,149 95 % Commodity contracts 1,543 (819) 724 — 724 69 Equity contracts 22,006 (12,283) 9,723 (837) 8,886 78 Foreign exchange contracts 8,156 (6,481) 1,675 (529) 1,146 100 Credit contracts 58 (39) 19 (3) 16 91 Total derivative liabilities $ 58,065 (41,556) 16,509 (3,588) 12,921 (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 $299 million and $399 million and debit valuation adjustments related to derivative liabilities were $145 million and $201 million as of June 30, 2021, and December 31, 2020, respectively. Cash collateral totaled $5.4 billion and $5.1 billion, netted against derivative assets and liabilities, respectively, at June 30, 2021, and $5.5 billion and $7.5 billion, respectively, at December 31, 2020.
Gains (Losses) Recognized on Fair Value Hedging Relationships	Table 14.3 and Table 14.4 show the net gains (losses) related to derivatives in fair value and cash flow hedging relationships, respectively. Table 14.3: 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 Deposits Long-term debt Other Derivative gains (losses) Derivative gains (losses) Quarter ended June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 2,199 (92) (712) 692 N/A 37 Interest contracts Amounts related to interest settlements on derivatives (68) 74 541 — 547 Recognized on derivatives (468) (61) 2,453 — 1,924 — Recognized on hedged items 452 62 (2,402) — (1,888) Total gains (losses) (pre-tax) on interest rate contracts (84) 75 592 — 583 — Foreign exchange contracts Amounts related to interest settlements on derivatives 15 — 4 — 19 Recognized on derivatives 2 — (42) 202 162 (14) Recognized on hedged items (1) — 44 (203) (160) Total gains (losses) (pre-tax) on foreign exchange contracts 16 — 6 (1) 21 (14) Total gains (losses) (pre-tax) recognized on fair value hedges $ (68) 75 598 (1) 604 (14) Quarter ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 2,946 (585) (1,237) 912 N/A 3 Interest contracts Amounts related to interest settlements on derivatives (93) 152 428 — 487 Recognized on derivatives (21) (86) 549 — 442 — Recognized on hedged items 63 77 (618) — (478) Total gains (losses) (pre-tax) on interest rate contracts (51) 143 359 — 451 — Foreign exchange contracts Amounts related to interest settlements on derivatives 11 — (46) — (35) Recognized on derivatives (1) — 117 709 825 (57) Recognized on hedged items 1 — (70) (684) (753) Total gains (losses) (pre-tax) on foreign exchange contracts 11 — 1 25 37 (57) Total gains (losses) (pre-tax) recognized on fair value hedges $ (40) 143 360 25 488 (57) (continued on following page) (continued from previous page) Net interest income Noninterest income Total recorded in net income Total recorded in OCI (in millions) Debt securities Deposits Long-term debt Other Derivative gains (losses) Derivative gains (losses) Six months ended June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 4,511 (204) (1,738) 1,674 N/A 84 Interest contracts Amounts related to interest settlements on derivatives (135) 165 1,091 — 1,121 Recognized on derivatives 826 (184) (4,618) — (3,976) — Recognized on hedged items (806) 181 4,542 — 3,917 Total gains (losses) (pre-tax) on interest rate contracts (115) 162 1,015 — 1,062 — Foreign exchange contracts Amounts related to interest settlements on derivatives 43 — 3 — 46 Recognized on derivatives 3 — (269) 509 243 11 Recognized on hedged items (2) — 238 (520) (284) Total gains (losses) (pre-tax) on foreign exchange contracts 44 — (28) (11) 5 11 Total gains (losses) (pre-tax) recognized on fair value hedges $ (71) 162 987 (11) 1,067 11 Six months ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 6,418 (2,327) (2,477) 2,213 N/A 185 Interest contracts Amounts related to interest settlements on derivatives (139) 222 602 — 685 Recognized on derivatives (1,892) 444 10,324 — 8,876 — Recognized on hedged items 1,919 (434) (10,044) — (8,559) Total gains (losses) (pre-tax) on interest rate contracts (112) 232 882 — 1,002 — Foreign exchange contracts Amounts related to interest settlements on derivatives 17 — (131) — (114) Recognized on derivatives (2) — 224 (76) 146 87 Recognized on hedged items 3 — (244) 80 (161) Total gains (losses) (pre-tax) on foreign exchange contracts 18 — (151) 4 (129) 87 Total gains (losses) (pre-tax) recognized on fair value hedges $ (94) 232 731 4 873 87
Gains (Losses) Recognized on Cash Flow Hedging Relationships	Table 14.4: 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 June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 7,095 (712) N/A 37 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (39) — (39) 39 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A 10 Total gains (losses) (pre-tax) on interest rate contracts (39) — (39) 49 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 1 Total gains (losses) (pre-tax) on foreign exchange contracts — (1) (1) 2 Total gains (losses) (pre-tax) recognized on cash flow hedges $ (39) (1) (40) 51 Quarter ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 8,460 (1,237) N/A 3 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (53) 1 (52) 52 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (53) 1 (52) 52 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (3) (3) 3 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A 5 Total gains (losses) (pre-tax) on foreign exchange contracts — (3) (3) 8 Total gains (losses) (pre-tax) recognized on cash flow hedges $ (53) (2) (55) 60 Six months ended June 30, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 14,296 (1,738) N/A 84 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (91) — (91) 91 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (10) Total gains (losses) (pre-tax) on interest rate contracts (91) — (91) 81 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 (10) Total gains (losses) (pre-tax) on foreign exchange contracts — (2) (2) (8) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (91) (2) (93) 73 Six months ended June 30, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 18,543 (2,477) N/A 185 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (109) 1 (108) 108 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (109) 1 (108) 108 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (5) (5) 5 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (15) Total gains (losses) (pre-tax) on foreign exchange contracts — (5) (5) (10) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (109) (4) (113) 98
Hedged Items in Fair Value Hedging Relationships	Table 14.5 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 14.5: 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 June 30, 2021 Available-for-sale debt securities (5) $ 28,655 (35) 16,792 994 Deposits (14,206) (295) — — Long-term debt (148,673) (7,312) (5,248) 2 December 31, 2020 Available-for-sale debt securities (5) $ 29,538 827 17,091 1,111 Deposits (22,384) (477) — — Long-term debt (156,907) (12,466) (14,468) 31 (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 for debt securities is $12.0 billion and for long-term debt is $(2.8) billion as of June 30, 2021, and $17.6 billion for debt securities and $(4.7) billion for long-term debt as of December 31, 2020. (3) The balance includes $188 million and $160 million of debt securities and long-term debt cumulative basis adjustments as of June 30, 2021, respectively, and $205 million and $130 million of debt securities and long-term debt cumulative basis adjustments as of December 31, 2020, respectively, 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.
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	Table 14.6 shows the net gains (losses), recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 14.6: Gains (Losses) on Derivatives Not Designated as Hedging Instruments Noninterest income Noninterest expense (in millions) Mortgage banking Net gains (losses) on trading and securities Other Total Personnel expense Quarter ended June 30, 2021 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 287 — 14 301 — Equity contracts — (762) (4) (766) (239) Foreign exchange contracts — — (90) (90) — Credit contracts — — (5) (5) — Subtotal 287 (762) (85) (560) (239) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 482 (594) — (112) — Commodity contracts — (36) — (36) — Equity contracts — (922) (304) (1,226) — Foreign exchange contracts — (24) — (24) — Credit contracts — (43) — (43) — Subtotal 482 (1,619) (304) (1,441) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 769 (2,381) (389) (2,001) (239) Quarter ended June 30, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 142 — (74) 68 — Equity contracts — (1,402) (6) (1,408) (141) Foreign exchange contracts — — (55) (55) — Credit contracts — — 1 1 — Subtotal 142 (1,402) (134) (1,394) (141) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 546 676 — 1,222 — Commodity contracts — (224) — (224) — Equity contracts — (2,348) (145) (2,493) — Foreign exchange contracts — 155 — 155 — Credit contracts — (134) — (134) — Subtotal 546 (1,875) (145) (1,474) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 688 (3,277) (279) (2,868) (141) (continued on following page) (continued from previous page) Noninterest income Noninterest expense (in millions) Mortgage banking Net gains (losses) on trading and securities Other Total Personnel expense Six months ended June 30, 2021 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (88) — (6) (94) — Equity contracts — (337) 1 (336) (399) Foreign exchange contracts — — (19) (19) — Credit contracts — — (5) (5) — Subtotal (88) (337) (29) (454) (399) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts (49) 1,330 — 1,281 — Commodity contracts — 44 — 44 — Equity contracts — (2,085) (393) (2,478) — Foreign exchange contracts — 440 — 440 — Credit contracts — (71) — (71) — Subtotal (49) (342) (393) (784) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ (137) (679) (422) (1,238) (399) Six months ended June 30, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,613 — (45) 2,568 — Equity contracts — (183) (34) (217) (141) Foreign exchange contracts — — 572 572 — Credit contracts — — 17 17 — Subtotal 2,613 (183) 510 2,940 (141) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 1,099 (1,787) — (688) — Commodity contracts — (112) — (112) — Equity contracts — 2,401 (72) 2,329 — Foreign exchange contracts — (402) — (402) — Credit contracts — 147 — 147 — Subtotal 1,099 247 (72) 1,274 — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 3,712 64 438 4,214 (141) (1) Mortgage banking amounts for the second quarter and first half of 2021 are comprised of gains (losses) of $707 million and $(933) million, respectively, related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $(420) million and $845 million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. The corresponding amounts for the second quarter and first half of 2020 are comprised of gains (losses) of $535 million and $3.9 billion offset by gains (losses) of $(393) million and $(1.3) billion, respectively.
Sold and Purchased Credit Derivatives	Table 14.7 provides details of sold and purchased credit derivatives. Table 14.7: 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 June 30, 2021 Credit default swaps on: Corporate bonds $ 5 3 4,724 1,236 3,130 1,594 3,582 2021 - 2031 Structured products — 4 16 16 12 4 82 2034 - 2047 Credit protection on: Default swap index 1 — 1,760 698 924 836 3,765 2021 - 2030 Commercial mortgage-backed securities index 2 15 283 29 258 25 134 2047 - 2072 Asset-backed securities index — 7 41 41 40 1 1 2045 - 2046 Other — 2 6,300 6,206 — 6,300 11,199 2021 - 2040 Total credit derivatives $ 8 31 13,124 8,226 4,364 8,760 18,763 December 31, 2020 Credit default swaps on: Corporate bonds $ 7 2 3,767 971 2,709 1,058 3,012 2021 - 2029 Structured products — 5 20 20 19 1 84 2034 - 2047 Credit protection on: Default swap index — — 1,582 731 559 1,023 3,925 2021 - 2030 Commercial mortgage-backed securities index 3 21 297 42 272 25 75 2047 - 2072 Asset-backed securities index — 7 41 41 40 1 1 2045 - 2046 Other — 4 6,378 6,262 — 6,378 11,621 2021 - 2040 Total credit derivatives $ 10 39 12,085 8,067 3,599 8,486 18,718
Credit-Risk Contingent Features	Table 14.8 illustrates our exposure to OTC bilateral derivative contracts 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 14.8: Credit-Risk Contingent Features (in billions) Jun 30, Dec 31, Net derivative liabilities with credit-risk contingent features $ 10.4 10.5 Collateral posted 9.4 9.0 Additional collateral to be posted upon a below investment grade credit rating (1) 1.0 1.5 (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)	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value on a Recurring Basis	Table 15.1 presents the balances of assets and liabilities recorded at fair value on a recurring basis. Table 15.1: Fair Value on a Recurring Basis June 30, 2021 December 31, 2020 (in millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Trading debt securities: Securities of U.S. Treasury and federal agencies $ 29,497 2,207 — 31,704 $ 32,060 3,197 — 35,257 Collateralized loan obligations — 469 158 627 — 534 148 682 Corporate debt securities — 12,062 11 12,073 — 10,696 13 10,709 Federal agency mortgage-backed securities — 33,105 — 33,105 — 23,549 — 23,549 Non-agency mortgage-backed securities — 1,275 22 1,297 — 1,039 12 1,051 Other debt securities — 3,920 1 3,921 — 3,847 — 3,847 Total trading debt securities 29,497 53,038 192 82,727 32,060 42,862 173 75,095 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 35,905 — — 35,905 22,159 — — 22,159 Non-U.S. government securities — 11,201 — 11,201 — 16,813 — 16,813 Securities of U.S. states and political subdivisions — 19,377 122 19,499 — 19,182 224 19,406 Federal agency mortgage-backed securities — 96,534 — 96,534 — 139,070 — 139,070 Non-agency mortgage-backed securities — 4,347 31 4,378 — 3,697 32 3,729 Collateralized loan obligations — 12,407 — 12,407 — 9,018 — 9,018 Other debt securities 37 7,284 2,652 9,973 38 7,421 2,738 10,197 Total available-for-sale debt securities 35,942 151,150 2,805 189,897 22,197 195,201 2,994 220,392 Loans held for sale — 17,825 1,069 18,894 — 17,572 1,234 18,806 Mortgage servicing rights (residential) — — 6,717 6,717 — — 6,125 6,125 Derivative assets (gross): Interest rate contracts 20 26,370 357 26,747 11 35,590 462 36,063 Commodity contracts — 7,139 95 7,234 — 1,997 39 2,036 Equity contracts 4,620 12,763 1,896 19,279 4,888 12,384 1,613 18,885 Foreign exchange contracts 21 7,664 7 7,692 19 8,573 11 8,603 Credit contracts — 36 39 75 — 45 50 95 Total derivative assets (gross) 4,661 53,972 2,394 61,027 4,918 58,589 2,175 65,682 Equity securities: Marketable 25,138 186 1 25,325 23,995 596 5 24,596 Nonmarketable (1) — 199 9,659 9,858 10 21 9,228 9,259 Total equity securities 25,138 385 9,660 35,183 24,005 617 9,233 33,855 Total assets prior to derivative netting $ 95,238 276,370 22,837 394,445 $ 83,180 314,841 21,934 419,955 Derivative netting (2) (35,612) (39,836) Total assets after derivative netting 358,833 380,119 Derivative liabilities (gross): Interest rate contracts $ (14) (19,418) (43) (19,475) $ (27) (26,259) (16) (26,302) Commodity contracts — (2,216) (93) (2,309) — (1,503) (40) (1,543) Equity contracts (4,108) (15,089) (2,321) (21,518) (4,860) (15,219) (1,927) (22,006) Foreign exchange contracts (14) (6,280) (7) (6,301) (10) (8,134) (12) (8,156) Credit contracts — (44) (6) (50) — (49) (9) (58) Total derivative liabilities (gross) (4,136) (43,047) (2,470) (49,653) (4,897) (51,164) (2,004) (58,065) Short-sale trading liabilities (15,579) (6,464) — (22,043) (15,292) (7,149) — (22,441) Total liabilities prior to derivative netting $ (19,715) (49,511) (2,470) (71,696) $ (20,189) (58,313) (2,004) (80,506) Derivative netting (2) 35,102 41,556 Total liabilities after derivative netting (36,594) (38,950) (1) Excludes $148 million and $154 million of nonmarketable equity securities as of June 30, 2021, and December 31, 2020, respectively, that are measured at fair value using non-published NAV per share (or its equivalent) as a practical expedient that are not classified in the fair value hierarchy. (2) Represents balance sheet netting of derivative asset and liability balances, related cash collateral and portfolio level counterparty valuation adjustments. See Note 14 (Derivatives) for additional information.
Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis	Table 15.2 presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis. Table 15.2: Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis Net unrealized gains (losses) (in millions) Balance, Net gains/(losses) (1) Purchases (2) Sales Settlements Transfers Transfers Balance, (5) Quarter ended June 30, 2021 Trading debt securities $ 192 4 123 (129) (5) 15 (8) 192 1 (6) Available-for-sale debt securities 3,142 28 9 — (120) 11 (265) 2,805 41 (6) Loans held for sale 1,166 15 131 (231) (107) 97 (2) 1,069 9 (7) Mortgage servicing rights (residential) (8) 7,536 (1,297) 485 (7) — — — 6,717 (809) (7) Net derivative assets and liabilities: Interest rate contracts 1 458 — — (145) — — 314 167 Equity contracts (429) (158) — — 120 (10) 52 (425) (130) Other derivative contracts 56 (67) 2 (1) 42 — 3 35 (16) Total derivative contracts (372) 233 2 (1) 17 (10) 55 (76) 21 (9) Equity securities 8,865 794 — — — 1 — 9,660 794 (6) Quarter ended June 30, 2020 Trading debt securities $ 389 33 186 (346) (5) 15 (49) 223 14 (6) Available-for-sale debt securities 2,412 21 5 (28) (100) 85 (297) 2,098 8 (6) Loans held for sale 3,176 (41) 94 (288) (64) 80 (2,199) 758 (32) (7) Mortgage servicing rights (residential) (8) 8,126 (1,768) 462 (1) — — — 6,819 (1,131) (7) Net derivative assets and liabilities: Interest rate contracts 685 460 — — (622) — — 523 291 Equity contracts 217 (277) — — 79 — 1 20 (387) Other derivative contracts (3) 7 2 (1) 12 18 — 35 47 Total derivative contracts 899 190 2 (1) (531) 18 1 578 (49) (9) Equity securities 6,754 1,414 — — — — (3) 8,165 1,414 (6) Six months ended June 30, 2021 Trading debt securities $ 173 20 292 (302) (5) 22 (8) 192 5 (6) Available-for-sale debt securities 2,994 21 24 — (188) 253 (299) 2,805 16 (6) Loans held for sale 1,234 (4) 260 (379) (217) 178 (3) 1,069 (5) (7) Mortgage servicing rights (residential) (8) 6,125 (291) 891 (8) — — — 6,717 782 (7) Net derivative assets and liabilities: Interest rate contracts 446 (83) — — (44) — (5) 314 109 Equity contracts (314) (326) — — 160 (37) 92 (425) (236) Other derivative contracts 39 (40) 2 (1) 32 — 3 35 4 Total derivative contracts 171 (449) 2 (1) 148 (37) 90 (76) (123) (9) Equity securities 9,233 429 — (5) — 3 — 9,660 429 (6) Six months ended June 30, 2020 Trading debt securities $ 223 (85) 476 (439) (15) 115 (52) 223 (69) (6) Available-for-sale debt securities 1,565 (121) 31 (33) (148) 1,172 (368) 2,098 (99) (6) Loans held for sale 1,214 (104) 960 (358) (162) 1,409 (2,201) 758 (34) (7) Mortgage servicing rights (residential) (8) 11,517 (5,589) 923 (33) 1 — — 6,819 (4,388) (7) Net derivative assets and liabilities: Interest rate contracts 214 1,204 — — (895) — — 523 374 Equity contracts (269) 153 — — 152 (10) (6) 20 48 Other derivative contracts (5) (48) 8 (4) 72 12 — 35 33 Total derivative contracts (60) 1,309 8 (4) (671) 2 (6) 578 455 (9) Equity securities 7,850 313 — — — 7 (5) 8,165 310 (6) (1) Includes net gains (losses) included in both net income and other comprehensive income. All amounts represent net gains (losses) included in net income except for $22 million and $36 million included in other comprehensive income from available-for-sale debt securities in the second quarter and first half of 2021, respectively. The corresponding amounts for the second quarter and first half of 2020 were $16 million and $(75) million, respectively. (2) Includes originations of mortgage servicing rights and loans held for sale. (3) All assets and liabilities transferred into Level 3 were previously classified within Level 2. (4) All assets and liabilities transferred out of Level 3 are classified as Level 2. (5) Includes net unrealized gains (losses) related to assets and liabilities held at period end included in both net income and other comprehensive income. All amounts represent net unrealized gains (losses) included in net income except for $38 million and $31 million included in other comprehensive income from available-for-sale debt securities in the second quarter and first half of 2021 , respectively. The corresponding amounts for the second quarter and first half of 2020 were $13 million and $(40) million, respectively. (6) Included in net gains on trading and securities in the consolidated statement of income. (7) Included in mortgage banking income in the consolidated statement of income. (8) For additional information on the changes in mortgage servicing rights, see Note 9 (Mortgage Banking Activities).
Valuation Techniques - Recurring Basis	Table 15.3 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of our Level 3 assets and liabilities measured at fair value on a recurring basis. The significant unobservable inputs for Level 3 assets inherent in the fair values obtained from third-party vendors are not included in the table, as the specific inputs applied are not provided by the vendor (for additional information on vendor-developed valuations, see Note 17 (Fair Values of Assets and Liabilities) in our 2020 Form 10-K). Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. Table 15.3: Valuation Techniques – Recurring Basis ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique Significant Range of Inputs Weighted June 30, 2021 Trading and available-for-sale debt securities $ 1,926 Discounted cash flow Discount rate 0.4 - 12.4 % 4.4 747 Vendor priced 193 Market comparable pricing Comparability adjustment (29.1) - 9.5 (6.6) 131 Market comparable pricing Multiples 0.4x - 12.1x 6.5x Loans held for sale 1,069 Discounted cash flow Default rate 0.0 - 35.7 % 1.5 Discount rate 1.1 - 12.5 4.6 Loss severity 0.0 - 32.9 15.8 Prepayment rate 6.9 - 17.6 12.9 Mortgage servicing rights (residential) 6,717 Discounted cash flow Cost to service per loan (1) $ 57 - 642 111 Discount rate 4.6 - 8.3 % 5.4 Prepayment rate (2) 14.2 - 21.4 17.2 Net derivative assets and (liabilities): Interest rate contracts 139 Discounted cash flow Default rate 0.0 - 6.0 1.9 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 18.5 Interest rate contracts: derivative loan commitments 175 Discounted cash flow Fall-out factor 1.0 - 99.0 20.2 Initial-value servicing (65.9) - 151.0 bps 89.9 Equity contracts 239 Discounted cash flow Conversion factor (9.3) - 0.0 % (9.0) Weighted average life 0.0 - 2.5 yrs 1.4 (664) Option model Correlation factor (77.0) - 99.0 % 17.5 Volatility factor 6.5 - 78.8 21.8 Nonmarketable equity securities 9,659 Market comparable pricing Comparability adjustment (19.3) - (5.5) (15.6) Insignificant Level 3 assets, net of liabilities 36 Total Level 3 assets, net of liabilities $ 20,367 (3) December 31, 2020 Trading and available-for-sale debt securities $ 2,126 Discounted cash flow Discount rate 0.4 - 14.7 % 3.6 759 Vendor priced 173 Market comparable pricing Comparability adjustment (39.8) - 0.3 (8.4) 109 Market comparable pricing Multiples 7.2x - 12.1x 8.0x Loans held for sale 1,234 Discounted cash flow Default rate 0.0 - 31.6 % 1.7 Discount rate 1.3 - 12.0 4.5 Loss severity 0.0 - 32.3 18.4 Prepayment rate 8.3 - 23.6 15.1 Mortgage servicing rights (residential) 6,125 Discounted cash flow Cost to service per loan (1) $ 63 - 712 130 Discount rate 4.9 - 8.3 % 5.8 Prepayment rate (2) 14.3 - 22.8 19.9 Net derivative assets and (liabilities): Interest rate contracts 206 Discounted cash flow Default rate 0.0 - 6.0 1.7 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 18.2 Interest rate contracts: derivative loan 240 Discounted cash flow Fall-out factor 1.0 - 99.0 28.8 Initial-value servicing (51.6) - 268.0 bps 65.5 Equity contracts 220 Discounted cash flow Conversion factor (8.6) - 0.0 % (8.2) Weighted average life 0.5 - 2.0 yrs 1.0 (534) Option model Correlation factor (77.0) - 99.0 % 24.8 Volatility factor 6.5 - 96.6 26.4 Nonmarketable equity securities 9,228 Market comparable pricing Comparability adjustment (20.3) - (3.2) (13.8) Insignificant Level 3 assets, net of liabilities 44 Total Level 3 assets, net of liabilities $ 19,930 (3) (1) The high end of the range of inputs is for servicing modified loans. For non-modified loans the range is $57 - $239 at June 30, 2021, and $63 - $252 at December 31, 2020. (2) 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. (3) Consists of total Level 3 assets of $22.8 billion and $21.9 billion and total Level 3 liabilities of $2.5 billion and $2.0 billion, before netting of derivative balances, at June 30, 2021, and December 31, 2020, respectively.
Fair Value on a Nonrecurring Basis	Table 15.4 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 June 30, 2021, and December 31, 2020, and for which a nonrecurring fair value adjustment was recorded during the six months ended June 30, 2021, and year ended December 31, 2020. Table 15.5 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 15.4: Fair Value on a Nonrecurring Basis June 30, 2021 December 31, 2020 (in millions) Level 2 Level 3 Total Level 2 Level 3 Total Loans held for sale (1) 2,956 1,439 4,395 2,672 2,945 5,617 Loans: Commercial 432 — 432 1,385 — 1,385 Consumer 221 — 221 395 — 395 Total loans 653 — 653 1,780 — 1,780 Mortgage servicing rights (commercial) — 567 567 — 510 510 Nonmarketable equity securities 3,882 85 3,967 2,397 790 3,187 Other assets 976 157 1,133 1,350 428 1,778 Total assets at fair value on a nonrecurring basis $ 8,467 2,248 10,715 8,199 4,673 12,872 (1) Predominantly consists of commercial mortgages and residential mortgage – first lien loans.
Changes in Value of Assets with Nonrecurring Fair Value Adjustment	Table 15.5: Change in Value of Assets with Nonrecurring Fair Value Adjustment Six months ended June 30, (in millions) 2021 2020 Loans held for sale $ 38 (77) Loans: Commercial (182) (392) Consumer (90) (128) Total loans (272) (520) Mortgage servicing rights (commercial) 31 (30) Nonmarketable equity securities 2,215 (410) Other assets (56) (394) Total $ 1,956 (1,431)
Valuation Techniques - Nonrecurring Basis	Table 15.6 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of our Level 3 assets that are measured at fair value on a nonrecurring basis and determined using an internal model. The table is limited to financial instruments that had nonrecurring fair value adjustments during the periods presented. Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans, and carrying value prior to the nonrecurring fair value measurement for nonmarketable equity securities. Table 15.6: Valuation Techniques – Nonrecurring Basis ($ in millions) Fair Value Valuation Technique (1) Significant Range of Inputs Weighted June 30, 2021 Loans held for sale (2) $ 1,269 Discounted cash flow Default rate (3) 0.8 - 80.2 % 30.3 Discount rate 0.6 - 12.6 3.1 Loss severity 0.3 - 51.0 5.9 Prepayment rate (4) 4.2 - 100.0 41.3 170 Market comparable pricing Comparability adjustment (5.9) - (1.4) (5.0) Mortgage servicing rights (commercial) 567 Discounted cash flow Cost to service per loan $ 150 - 3,381 2,773 Discount rate 4.0 - 4.2 % 4.0 Prepayment rate 0.0 - 20.6 5.5 Nonmarketable equity securities 15 Market comparable pricing Multiples 2.0x - 3.3x 2.8x 65 Market comparable pricing Comparability Adjustment (100.0) - (5.3) % (50.0) 5 Discounted cash flow Discount rate 10.5 - 10.5 10.5 Other assets 157 Discounted cash flow Discount rate 0.3 - 4.4 2.9 Total $ 2,248 December 31, 2020 Loans held for sale (2) $ 1,628 Discounted cash flow Default rate (3) 0.3 - 85.5 % 31.5 Discount rate 0.6 - 11.9 3.0 Loss severity 0.4 - 45.0 8.1 Prepayment rate (4) 8.3 - 100.0 42.5 1,317 Market comparable pricing Comparability adjustment (11.6) - (1.8) (3.1) Mortgage servicing rights (commercial) 510 Discounted cash flow Cost to service per loan $ 150 - 3,377 2,779 Discount rate 1.9 - 1.9 % 1.9 Prepayment rate 0.0 - 20.0 5.4 Nonmarketable equity securities (5) 844 Market comparable pricing Multiples 0.1x - 10.9x 5.0x 188 Market comparable pricing Comparability adjustment (100.0) - (20.0) % (61.4) 76 Other Company risk factor (100.0) - (20.0) (57.7) 91 Discounted cash flow Discount rate 10.0 - 20.0 11.5 Company risk factor (62.6) - 0.0 (30.3) Crude oil prices ($/barrel) $ 42 - 48 47 Natural gas prices ($/MMBtu) 2 - 2 2 Insignificant Level 3 assets 19 Total $ 4,673 (1) See Note 17 (Fair Values of Assets and Liabilities) in our 2020 Form 10-K for additional information on the valuation technique(s) and significant unobservable inputs used in the valuation of Level 3 assets. (2) Consists of approximately $1.2 billion and $2.6 billion of government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitizations at June 30, 2021, and December 31, 2020, respectively, and approximately $200 million and $300 million of other mortgage loans that are not government insured/guaranteed at June 30, 2021, and December 31, 2020. (3) Applies only to non-government insured/guaranteed loans. (4) 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. (5) Includes $417 million of private equity and venture capital investments in consolidated portfolio companies classified in other assets on the consolidated balance sheet at December 31, 2020.
Fair Value Option	Table 15.7 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. Nonaccrual loans and loans 90 days or more past due and still accruing included in LHFS for which we have elected the fair value option were insignificant at June 30, 2021, and December 31, 2020. Table 15.7: Fair Value Option June 30, 2021 December 31, 2020 (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 Loans held for sale $ 18,894 18,526 368 18,806 18,217 589
Fair Value Estimates for Financial Instruments	Table 15.8 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 the scope of this table, such as certain insurance contracts, certain nonmarketable equity securities, 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 15.8. 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 $1.4 billion and at both June 30, 2021, and December 31, 2020, respectively. The total of the fair value calculations presented does not represent, and should not be construed to represent, the underlying fair value of the Company. Table 15.8: Fair Value Estimates for Financial Instruments Estimated fair value (in millions) Carrying amount Level 1 Level 2 Level 3 Total June 30, 2021 Financial assets Cash and due from banks (1) $ 25,304 25,304 — — 25,304 Interest-earning deposits with banks (1) 248,869 248,686 183 — 248,869 Federal funds sold and securities purchased under resale agreements (1) 70,149 — 70,149 — 70,149 Held-to-maturity debt securities 260,941 28,028 235,075 984 264,087 Loans held for sale 6,700 — 5,259 1,669 6,928 Loans, net (2) 821,774 — 59,140 781,652 840,792 Nonmarketable equity securities (cost method) 3,585 — — 3,647 3,647 Total financial assets $ 1,437,322 302,018 369,806 787,952 1,459,776 Financial liabilities Deposits (3) $ 35,964 — 18,823 17,368 36,191 Short-term borrowings 45,635 — 45,635 — 45,635 Long-term debt (4) 179,625 — 186,681 1,282 187,963 Total financial liabilities $ 261,224 — 251,139 18,650 269,789 December 31, 2020 Financial assets Cash and due from banks (1) $ 28,236 28,236 — — 28,236 Interest-earning deposits with banks (1) 236,376 236,258 118 — 236,376 Federal funds sold and securities purchased under resale agreements (1) 65,672 — 65,672 — 65,672 Held-to-maturity debt securities 205,720 48,597 162,777 933 212,307 Loans held for sale 17,578 — 14,952 3,419 18,371 Loans, net (2) 853,595 — 56,270 817,827 874,097 Nonmarketable equity securities (cost method) 3,588 — — 3,632 3,632 Total financial assets $ 1,410,765 313,091 299,789 825,811 1,438,691 Financial liabilities Deposits (3) $ 52,807 — 33,321 19,940 53,261 Short-term borrowings 58,999 — 58,999 — 58,999 Long-term debt (4) 212,922 — 219,321 1,381 220,702 Total financial liabilities $ 324,728 — 311,641 21,321 332,962 (1) Amounts consist of financial instruments for which carrying value approximates fair value. (2) Excludes lease financing with a carrying amount of $15.2 billion and $15.4 billion at June 30, 2021, and December 31, 2020, respectively. (3) Excludes deposit liabilities with no defined or contractual maturity of $1.4 trillion at both June 30, 2021, and December 31, 2020, respectively. (4) Excludes capital lease obligations under capital leases of $28 million at both June 30, 2021, and December 31, 2020, respectively.

Preferred Stock (Tables)

Preferred Stock (Tables)	6 Months Ended
	Jun. 30, 2021
Preferred Stock [Abstract]
Preferred Stock Shares	Table 16.1: Preferred Stock Shares June 30, 2021 December 31, 2020 Liquidation Shares Liquidation Shares DEP Shares Dividend Equalization Preferred Shares (DEP) $ 10 97,000 $ 10 97,000 Series I (1) Floating Class A Preferred Stock — — 100,000 25,010 Series L (2) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 1,000 4,025,000 1,000 4,025,000 Series N (3) 5.20% Non-Cumulative Perpetual Class A Preferred Stock — — 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 (3) 5.25% Non-Cumulative Perpetual Class A Preferred Stock — — 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 U 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,000 25,000 80,000 Series W (3) 5.70% Non-Cumulative Perpetual Class A Preferred Stock — — 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 4.75% Non-Cumulative Perpetual Class A Preferred Stock 25,000 80,500 25,000 80,500 Series AA 4.70% Non-Cumulative Perpetual Class A Preferred Stock 25,000 46,800 25,000 46,800 Series BB 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock 25,000 140,400 — — Series CC 4.375% Non-Cumulative Perpetual Class A Preferred Stock 25,000 46,000 — — ESOP (4) Cumulative Convertible Preferred Stock — 822,242 — 822,242 Total 5,622,642 5,557,652 (1) Series I preferred stock issuance relates to trust preferred securities. See Note 8 (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%. In first quarter 2021, Preferred Stock, Series I, was redeemed. (2) 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. (3) In first quarter 2021, 16,000 shares of Preferred Stock, Series N, were redeemed and Preferred Stock, Series P and Series W were fully redeemed; in second quarter 2021, the remaining 14,000 shares of Preferred Stock, Series N, were redeemed. (4) See the “ESOP Cumulative Convertible Preferred Stock” section in this Note for additional information about the liquidation preference for the ESOP Cumulative Convertible Preferred Stock. Table 16.2: Preferred Stock – Shares Issued and Carrying Value June 30, 2021 December 31, 2020 (in millions, except shares) Shares issued and outstanding Liquidation preference value Carrying Discount Shares 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 — Series L (2) 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 (3) 5.20% Non-Cumulative Perpetual Class A Preferred Stock — — — — 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 (3) 5.25% Non-Cumulative Perpetual Class A Preferred Stock — — — — 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 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 W (3) 5.70% Non-Cumulative Perpetual Class A Preferred Stock — — — — 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 — 80,500 2,013 2,013 — Series AA 4.70% Non-Cumulative Perpetual Class A Preferred Stock 46,800 1,170 1,170 — 46,800 1,170 1,170 — Series BB 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock 140,400 3,510 3,510 — — — — — Series CC 4.375% Non-Cumulative Perpetual Class A Preferred Stock 42,000 1,050 1,050 — — — — — ESOP (4) Cumulative Convertible Preferred Stock 822,242 822 822 — 822,242 822 822 — Total 5,558,683 $ 21,588 20,820 768 5,496,293 $ 21,904 21,136 768 (1) Floating rate for Preferred Stock, Series I, is the greater of three-month London Interbank Offered Rate (LIBOR) plus 0.93% and 5.56975%. In first quarter 2021, Preferred Stock, Series I, was redeemed. (2) 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. (3) In first quarter 2021, $400 million of Preferred Stock, Series N, was redeemed and Preferred Stock, Series P and Series W were fully redeemed; in second quarter 2021, the remaining $350 million of Preferred Stock, Series N, was redeemed. (4) See the “ESOP Cumulative Convertible Preferred Stock” section in this Note for additional information about the liquidation preference for the ESOP Cumulative Convertible Preferred Stock.
ESOP Preferred Stock	Table 16.3: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Jun 30, Dec 31, Jun 30, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 221,945 221,945 $ 222 222 7.00 % 8.00 % 2017 163,210 163,210 163 163 7.00 8.00 2016 162,450 162,450 162 162 9.30 10.30 2015 92,904 92,904 93 93 8.90 9.90 2014 99,151 99,151 99 99 8.70 9.70 2013 61,948 61,948 62 62 8.50 9.50 2012 20,634 20,634 21 21 10.00 11.00 Total ESOP Preferred Stock (1) 822,242 822,242 $ 822 822 Unearned ESOP shares (2) $ (875) (875) (1) At both June 30, 2021, and December 31, 2020, additional paid-in capital included $53 million 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)	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue by Operating Segment	Table 17.1 presents our revenue by operating segment. For additional description of our operating segments, including additional financial information and the underlying management accounting process, see Note 22 (Operating Segments). Table 17.1: Revenue by Operating Segment (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Consolidated Quarter ended June 30, 2021 Net interest income (2) $ 5,618 1,202 1,783 610 (304) (109) 8,800 Noninterest income: Deposit-related fees 732 325 277 7 1 — 1,342 Lending-related fees (2) 36 135 190 2 (1) — 362 Investment advisory and other asset-based fees (3) — 2 12 2,382 398 — 2,794 Commissions and brokerage services fees — — 68 513 (1) — 580 Investment banking fees (2) 9 580 (1) (16) — 570 Card fees: Card interchange and network revenues (4) 896 49 11 1 — — 957 Other card fees (2) 121 — — — (1) — 120 Total card fees 1,017 49 11 1 (1) — 1,077 Mortgage banking (2) 1,158 — 181 (3) — — 1,336 Net gains (losses) from trading activities (2) — (1) 30 6 (14) — 21 Net gains on debt securities (2) — — — — — — — Net gains from equity securities (2) — 32 46 6 2,612 — 2,696 Lease income (2) — 173 — — 140 — 313 Other (2) 127 182 160 13 209 (312) 379 Total noninterest income 3,068 906 1,555 2,926 3,327 (312) 11,470 Total revenue $ 8,686 2,108 3,338 3,536 3,023 (421) 20,270 Quarter ended June 30, 2020 Net interest income (2) $ 5,717 1,554 1,963 719 60 (121) 9,892 Noninterest income: Deposit-related fees 575 297 261 6 3 — 1,142 Lending-related fees (2) 33 125 163 2 — — 323 Investment advisory and other asset-based fees (3) — 8 24 1,835 387 — 2,254 Commissions and brokerage services fees — — 79 470 1 — 550 Investment banking fees (1) 26 588 1 (67) — 547 Card fees: Card interchange and network revenues (4) 650 36 11 1 — — 698 Other card fees (2) 99 — — — — — 99 Total card fees 749 36 11 1 — — 797 Mortgage banking (2) 256 — 65 (3) (1) — 317 Net gains (losses) from trading activities (2) 1 1 809 9 (13) — 807 Net gains on debt securities (2) 6 — — — 206 — 212 Net gains (losses) from equity securities (2) — (28) 8 150 403 — 533 Lease income (2) — 189 5 — 141 — 335 Other (2) 272 143 83 16 258 (195) 577 Total noninterest income 1,891 797 2,096 2,487 1,318 (195) 8,394 Total revenue $ 7,608 2,351 4,059 3,206 1,378 (316) 18,286 Six months ended June 30, 2021 Net interest income (2) $ 11,233 2,456 3,562 1,267 (694) (216) 17,608 Noninterest income: Deposit-related fees 1,393 642 543 14 5 — 2,597 Lending-related fees (2) 76 271 373 4 (1) — 723 Investment advisory and other asset-based fees (3) — 7 34 4,688 821 — 5,550 Commissions and brokerage services fees — — 149 1,068 (1) — 1,216 Investment banking fees (8) 22 1,191 (2) (65) — 1,138 Card fees: Card interchange and network revenues (4) 1,674 94 21 2 — — 1,791 Other card fees (2) 235 — — — — — 235 Total card fees 1,909 94 21 2 — — 2,026 Mortgage banking (2) 2,417 — 251 (6) — — 2,662 Net gains (losses) from trading activities (2) 1 1 361 12 (6) — 369 Net gains on debt securities (2) — — — — 151 — 151 Net gains from equity securities (2) 34 45 121 6 2,882 — 3,088 Lease income (2) — 347 1 — 280 — 628 Other (2) 285 304 335 27 678 (583) 1,046 Total noninterest income 6,107 1,733 3,380 5,813 4,744 (583) 21,194 Total revenue $ 17,340 4,189 6,942 7,080 4,050 (799) 38,802 (continued on following page) (continued from previous page) (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Consolidated Six months ended June 30, 2020 Net interest income (2) $ 11,719 3,287 3,984 1,557 939 (264) 21,222 Noninterest income: Deposit-related fees 1,454 599 518 13 5 — 2,589 Lending-related fees (2) 81 253 335 4 — — 673 Investment advisory and other asset-based fees (3) — 16 40 3,908 796 — 4,760 Commissions and brokerage services fees — — 169 1,063 (5) — 1,227 Investment banking fees (2) 39 1,065 2 (166) — 938 Card fees: Card interchange and network revenues (4) 1,307 88 29 2 2 — 1,428 Other card fees (2) 261 — — — — — 261 Total card fees 1,568 88 29 2 2 — 1,689 Mortgage banking (2) 598 — 105 (6) (1) — 696 Net gains (losses) from trading activities (2) 1 (4) 844 8 22 — 871 Net gains on debt securities (2) 6 — — — 443 — 449 Net gains (losses) from equity securities (2) — (222) 124 (111) (659) — (868) Lease income (2) — 387 6 — 295 — 688 Other (2) 832 253 248 36 571 (415) 1,525 Total noninterest income 4,538 1,409 3,483 4,919 1,303 (415) 15,237 Total revenue $ 16,257 4,696 7,467 6,476 2,242 (679) 36,459 (1) Taxable-equivalent adjustments related to tax-exempt income on certain loans and debt securities are included in net interest income, while taxable-equivalent adjustments related to income tax credits for low-income housing and renewable energy investments are included in noninterest income, in each case with corresponding impacts to income tax expense (benefit). Adjustments are included in Corporate, Commercial Banking, and Corporate and Investment Banking and are eliminated to reconcile to the Company’s consolidated financial results. (2) 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. (3) We earned trailing commissions of $300 million and $598 million for the second quarter and first half of 2021, respectively, and $257 million and $532 million for the second quarter and first half of 2020, respectively. (4) The cost of credit card rewards and rebates of $373 million and $683 million for the second quarter and first half of 2021, respectively, and $266 million and $651 million for the second quarter and first half of 2020, respectively, are presented net against the related revenues.

Employee Benefits (Tables)

Employee Benefits (Tables)	6 Months Ended
	Jun. 30, 2021
Retirement Benefits [Abstract]
Net Periodic Benefit Cost	Table 18.1 presents the components of net periodic benefit cost. Service cost is reported in personnel expense and all other components of net periodic benefit cost are reported in other noninterest expense on the consolidated statement of income. Table 18.1: Net Periodic Benefit Cost 2021 2020 Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Quarter ended June 30, Service cost $ 5 — — 4 — — Interest cost 71 3 3 86 4 4 Expected return on plan assets (154) — (4) (149) — (5) Amortization of net actuarial loss (gain) 38 3 (5) 35 3 (4) Amortization of prior service credit — — (3) — — (3) Settlement loss 62 — — 70 — — Net periodic benefit cost $ 22 6 (9) 46 7 (8) Six months ended June 30, Service cost $ 9 — — 7 — — Interest cost 142 6 6 172 8 8 Expected return on plan assets (306) — (9) (297) — (11) Amortization of net actuarial loss (gain) 75 7 (10) 71 7 (9) Amortization of prior service credit — — (5) — — (5) Settlement loss 62 2 — 70 3 — Net periodic benefit cost $ (18) 15 (18) 23 18 (17)

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Jun. 30, 2021
Restructuring Costs [Abstract]
Accrual for Restructuring Charges	Table 19.1 provides details on our restructuring charges. Table 19.1: Accruals for Restructuring Charges (in millions) Personnel costs Facility closure costs Other Total Quarter ended June 30, 2021 Balance, beginning of period $ 1,010 — 44 1,054 Restructuring charges 155 3 — 158 Payments and utilization (213) 4 (37) (246) Changes in estimates (1) (148) (7) (7) (162) Balance, end of period $ 804 — — 804 Six months ended June 30, 2021 Balance, beginning of period $ 1,170 — 44 1,214 Restructuring charges 285 18 — 303 Payments and utilization (370) (11) (38) (419) Changes in estimates (1) (281) (7) (6) (294) Balance, end of period $ 804 — — 804 Year ended December 31, 2020 Balance, beginning of year $ — — — — Restructuring charges 1,371 80 144 1,595 Payments and utilization (105) (80) (100) (285) Changes in estimates (1) (96) — — (96) Balance, end of year $ 1,170 — 44 1,214 (1) Represents reduction of expense for changes in previously estimated amounts based on refinements of assumptions.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2021
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. Table 20.1: Earnings Per Common Share Calculations Quarter ended June 30, Six months ended June 30, (in millions, except per share amounts) 2021 2020 2021 2020 Wells Fargo net income (loss) (1) $ 6,040 $ (3,846) $ 10,676 (2,930) Less: Preferred stock dividends and other (2) 297 314 677 926 Wells Fargo net income (loss) applicable to common stock (numerator) (1) $ 5,743 (4,160) $ 9,999 (3,856) Earnings per common share Average common shares outstanding (denominator) 4,124.6 4,105.5 4,132.9 4,105.2 Per share $ 1.39 (1.01) $ 2.42 (0.94) Diluted earnings per common share Average common shares outstanding 4,124.6 4,105.5 4,132.9 4,105.2 Add: Restricted share rights (3) 31.5 — 31.7 — Diluted average common shares outstanding (denominator) 4,156.1 4,105.5 4,164.6 4,105.2 Per share $ 1.38 (1.01) $ 2.40 (0.94) (1) In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies). (2) The quarter ended June 30, 2021, balance included $4 million, and the six months ended June 30, 2021 and 2020, includes $48 million and $272 million, respectively, from the elimination of discounts or issuance costs associated with redemptions of preferred stock. (3) Calculated using the treasury stock method. In the second quarter and first half of 2020, diluted average common shares outstanding equaled average common shares outstanding because our securities convertible into common shares had an anti-dilutive effect.
Outstanding Anti-Dilutive Securities	Table 20.2 presents the outstanding securities 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 June 30, Six months ended June 30, (in millions) 2021 2020 2021 2020 Convertible Preferred Stock, Series L (1) 25.3 25.3 25.3 25.3 Restricted share rights (2) 0.2 35.9 0.1 0.9 (1) Calculated using the if-converted method. (2) Calculated using the treasury stock method. Since we had net losses attributable to common shareholders for the second quarter and first half of 2020, all RSRs outstanding were anti-dilutive. Weighted average RSRs outstanding were 50.7 million and 54.7 million for the second quarter and first half of 2020, respectively.
Dividends Declared per common share	Table 20.3 presents dividends declared per common share. Table 20.3: Dividends Declared Per Common Share Quarter ended June 30, Six months ended June 30, 2021 2020 2021 2020 Per common share $ 0.10 $ 0.51 $ 0.20 1.02

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2021
Cumulative Other Comprehensive Income Balances [Abstract]
Summary of Other Comprehensive Income	Table 21.1 provides the components of other comprehensive income (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 June 30, Six months ended June 30, 2021 2020 2021 2020 (in millions) Before Tax Net of Before Tax Net of Before Tax Net of Before Tax Net of Debt securities: Net unrealized gains (losses) arising during the period $ 272 (68) 204 1,596 (395) 1,201 (1,740) 432 (1,308) 1,486 (373) 1,113 Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 134 (33) 101 123 (31) 92 271 (67) 204 189 (47) 142 Net gains on debt securities — — — (212) 63 (149) (151) 35 (116) (449) 111 (338) Other noninterest income (2) 1 (1) (1) — (1) (2) 1 (1) (2) — (2) Subtotal reclassifications to net income 132 (32) 100 (90) 32 (58) 118 (31) 87 (262) 64 (198) Net change 404 (100) 304 1,506 (363) 1,143 (1,622) 401 (1,221) 1,224 (309) 915 Derivatives and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) (14) 3 (11) (57) 13 (44) 11 (3) 8 87 (22) 65 Cash Flow Hedges: Net unrealized gains (losses) arising during the period on cash flow hedges 11 (3) 8 5 (1) 4 (20) 5 (15) (15) 4 (11) Reclassification of net (gains) losses to net income: Interest income on loans 39 (10) 29 53 (12) 41 91 (23) 68 109 (26) 83 Interest expense on long-term debt 1 — 1 2 — 2 2 — 2 4 (1) 3 Subtotal reclassifications to net income 40 (10) 30 55 (12) 43 93 (23) 70 113 (27) 86 Net change 37 (10) 27 3 — 3 84 (21) 63 185 (45) 140 Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period 347 (85) 262 (674) 167 (507) 357 (88) 269 (671) 166 (505) Reclassification of amounts to noninterest expense (3): Amortization of net actuarial loss 36 (9) 27 34 (9) 25 72 (18) 54 69 (17) 52 Settlements and other 59 (14) 45 67 (16) 51 59 (13) 46 68 (16) 52 Subtotal reclassifications to noninterest expense 95 (23) 72 101 (25) 76 131 (31) 100 137 (33) 104 Net change 442 (108) 334 (573) 142 (431) 488 (119) 369 (534) 133 (401) Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period 23 (1) 22 51 — 51 36 (3) 33 (144) 2 (142) Net change 23 (1) 22 51 — 51 36 (3) 33 (144) 2 (142) Other comprehensive income (loss) $ 906 (219) 687 987 (221) 766 (1,014) 258 (756) 731 (219) 512 Less: Other comprehensive income (loss) from noncontrolling interests, net of tax 1 — 2 (1) Wells Fargo other comprehensive income (loss), net of tax $ 686 766 (758) 513 (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 hedge effectiveness and recorded in other comprehensive income. (3) These items are included in the computation of net periodic benefit cost (see Note 18 (Employee Benefits and Other Expenses) for additional information).
Cumulative OCI Balances	Table 21.2 provides the cumulative OCI balance activity on an after-tax basis. Table 21.2: Cumulative OCI Balances (in millions) Debt Fair value hedges (1) Cash flow hedges (2) Defined benefit plans adjustments Foreign currency translation adjustments Cumulative other comprehensive income (loss) Quarter ended June 30, 2021 Balance, beginning of period $ 1,514 (185) (108) (2,369) (102) (1,250) Net unrealized gains (losses) arising during the period 204 (11) 8 262 22 485 Amounts reclassified from accumulated other comprehensive income 100 — 30 72 — 202 Net change 304 (11) 38 334 22 687 Less: Other comprehensive income from noncontrolling interests 1 — — — — 1 Balance, end of period $ 1,817 (196) (70) (2,035) (80) (564) Quarter ended June 30, 2020 Balance, beginning of period $ 1,324 (71) (270) (2,193) (354) (1,564) Net unrealized gains (losses) arising during the period 1,201 (44) 4 (507) 51 705 Amounts reclassified from accumulated other comprehensive income (58) — 43 76 — 61 Net change 1,143 (44) 47 (431) 51 766 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, end of period $ 2,467 (115) (223) (2,624) (303) (798) Six months ended June 30, 2021 Balance, beginning of period $ 3,039 (204) (125) (2,404) (112) 194 Net unrealized gains (losses) arising during the period (1,308) 8 (15) 269 33 (1,013) Amounts reclassified from accumulated other comprehensive income 87 — 70 100 — 257 Net change (1,221) 8 55 369 33 (756) Less: Other comprehensive income from noncontrolling interests 1 — — — 1 2 Balance, end of period $ 1,817 (196) (70) (2,035) (80) (564) Six months ended June 30, 2020 Balance, beginning of period $ 1,552 (180) (298) (2,223) (162) (1,311) Net unrealized gains (losses) arising during the period 1,113 65 (11) (505) (142) 520 Amounts reclassified from accumulated other comprehensive income (198) — 86 104 — (8) Net change 915 65 75 (401) (142) 512 Less: Other comprehensive loss from noncontrolling interests — — — — (1) (1) Balance, end of period $ 2,467 (115) (223) (2,624) (303) (798) (1) Substantially all of the amounts for fair value hedges are foreign exchange contracts.

Operating Segments (Tables)

Operating Segments (Tables)	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Operating Segments	Table 22.1 presents our results by operating segment. Table 22.1: Operating Segments (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Items (1) Consolidated Quarter ended June 30, 2021 Net interest income (2) $ 5,618 1,202 1,783 610 (304) (109) 8,800 Noninterest income 3,068 906 1,555 2,926 3,327 (312) 11,470 Total revenue 8,686 2,108 3,338 3,536 3,023 (421) 20,270 Provision for credit losses (367) (382) (501) 24 (34) — (1,260) Noninterest expense 6,202 1,443 1,805 2,891 1,000 — 13,341 Income (loss) before income tax expense (benefit) 2,851 1,047 2,034 621 2,057 (421) 8,189 Income tax expense (benefit) 713 261 513 156 223 (421) 1,445 Net income before noncontrolling interests 2,138 786 1,521 465 1,834 — 6,744 Less: Net income (loss) from noncontrolling interests — 2 (2) — 704 — 704 Net income $ 2,138 784 1,523 465 1,130 — 6,040 Quarter ended June 30, 2020 Net interest income (2) $ 5,717 1,554 1,963 719 60 (121) 9,892 Noninterest income 1,891 797 2,096 2,487 1,318 (195) 8,394 Total revenue 7,608 2,351 4,059 3,206 1,378 (316) 18,286 Provision for credit losses 3,102 2,295 3,756 255 126 — 9,534 Noninterest expense 6,933 1,580 2,044 2,743 1,251 — 14,551 Income (loss) before income tax expense (benefit) (2,427) (1,524) (1,741) 208 1 (316) (5,799) Income tax expense (benefit) (650) (379) (408) 52 (300) (316) (2,001) Net income (loss) before noncontrolling interests (1,777) (1,145) (1,333) 156 301 — (3,798) Less: Net income from noncontrolling interests — 1 — — 47 — 48 Net income (loss) $ (1,777) (1,146) (1,333) 156 254 — (3,846) Six months ended June 30, 2021 Net interest income (2) $ 11,233 2,456 3,562 1,267 (694) (216) 17,608 Noninterest income 6,107 1,733 3,380 5,813 4,744 (583) 21,194 Total revenue 17,340 4,189 6,942 7,080 4,050 (799) 38,802 Provision for credit losses (786) (781) (785) (19) 63 — (2,308) Noninterest expense 12,469 3,073 3,638 5,919 2,231 — 27,330 Income (loss) before income tax expense (benefit) 5,657 1,897 4,089 1,180 1,756 (799) 13,780 Income tax expense (benefit) 1,415 473 1,013 296 (52) (799) 2,346 Net income before noncontrolling interests 4,242 1,424 3,076 884 1,808 — 11,434 Less: Net income (loss) from noncontrolling interests — 3 (2) — 757 — 758 Net income $ 4,242 1,421 3,078 884 1,051 — 10,676 Six months ended June 30, 2020 Net interest income (2) $ 11,719 3,287 3,984 1,557 939 (264) 21,222 Noninterest income 4,538 1,409 3,483 4,919 1,303 (415) 15,237 Total revenue 16,257 4,696 7,467 6,476 2,242 (679) 36,459 Provision for credit losses 4,671 3,336 4,881 263 388 — 13,539 Noninterest expense 13,190 3,153 3,914 5,400 1,942 — 27,599 Income (loss) before income tax expense (benefit) (1,604) (1,793) (1,328) 813 (88) (679) (4,679) Income tax expense (benefit) (445) (442) (307) 204 21 (679) (1,648) Net income (loss) before noncontrolling interests (1,159) (1,351) (1,021) 609 (109) — (3,031) Less: Net income (loss) from noncontrolling interests — 2 — — (103) — (101) Net income (loss) $ (1,159) (1,353) (1,021) 609 (6) — (2,930) (continued on following page) (continued from previous page) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Items (1) Consolidated Quarter ended June 30, 2021 Loans (average) $ 331,892 178,572 252,422 81,784 10,077 — 854,747 Assets (average) 388,617 195,453 513,414 87,766 754,629 — 1,939,879 Deposits (average) 835,752 192,586 190,810 174,980 41,696 — 1,435,824 Six months ended June 30, 2021 Loans (average) $ 342,428 180,845 249,302 81,314 10,152 — 864,041 Assets (average) 398,530 197,396 512,476 87,562 741,203 — 1,937,167 Deposits (average) 812,723 190,984 192,645 174,333 44,080 — 1,414,765 Loans (period-end) 326,760 178,905 253,259 82,783 10,593 — 852,300 Assets (period-end) 382,464 196,421 516,518 88,678 761,915 — 1,945,996 Deposits (period-end) 840,434 197,461 188,219 174,267 40,091 — 1,440,472 Quarter ended June 30, 2020 Loans (average) $ 369,631 228,423 273,587 78,091 21,534 — 971,266 Assets (average) 427,065 243,762 535,298 85,438 655,617 — 1,947,180 Deposits (average) 715,144 184,132 239,637 165,103 82,640 — 1,386,656 Six months ended June 30, 2020 Loans (average) $ 376,096 226,641 265,915 77,987 21,517 — 968,156 Assets (average) 433,226 243,293 543,455 85,538 642,513 — 1,948,025 Deposits (average) 683,925 175,929 252,902 155,246 94,307 — 1,362,309 Loans (period-end) 368,753 210,779 255,574 78,101 21,948 — 935,155 Assets (period-end) 432,100 226,735 510,205 84,699 713,309 — 1,967,048 Deposits (period-end) 746,602 183,085 236,620 168,249 76,155 — 1,410,711 (1) Taxable-equivalent adjustments related to tax-exempt income on certain loans and debt securities are included in net interest income, while taxable-equivalent adjustments related to income tax credits for low-income housing and renewable energy investments are included in noninterest income, in each case with corresponding impacts to income tax expense (benefit). Adjustments are included in Corporate, Commercial Banking, and Corporate and Investment Banking and are eliminated to reconcile to the Company’s consolidated financial results. (2) Net interest income is interest earned on assets minus the interest paid on liabilities to fund those assets. Segment interest earned includes actual interest income on segment assets as well as a funding credit for their deposits. Segment interest paid on liabilities includes actual interest expense on segment liabilities as well as a funding charge for their assets.

Regulatory Capital Requiremen_2

Regulatory Capital Requirements and Other Restrictions (Tables)	6 Months Ended
	Jun. 30, 2021
Regulatory Capital Requirements and Other Restrictions [Abstract]
Regulatory Capital Information and Risk-Based Capital and Leverage Ratios - Transition Requirements	Table 23.1 presents regulatory capital information for Wells Fargo & Company and the Bank in accordance with Basel III capital requirements. Our capital adequacy is assessed based on the lower of our risk-based capital ratios calculated under the Standardized Approach and under the Advanced Approach. 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 Common Equity Tier 1 (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 June 30, 2021, the Bank and our other insured depository institutions were considered well-capitalized under the requirements of the Federal Deposit Insurance Act. Table 23.1: Regulatory Capital Information (1) Wells Fargo & Company Wells Fargo Bank, N.A. June 30, 2021 December 31, 2020 June 30, 2021 December 31, 2020 (in millions, except ratios) Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Advanced Approach Standardized Regulatory capital: Common Equity Tier 1 $ 143,442 143,442 138,297 138,297 151,121 151,121 150,168 150,168 Tier 1 162,999 162,999 158,196 158,196 151,121 151,121 150,168 150,168 Total 190,173 200,156 186,934 196,660 165,154 174,641 164,412 173,719 Assets: Risk-weighted assets (2) 1,126,535 1,188,727 1,158,355 1,193,744 988,692 1,087,876 1,012,751 1,085,599 Adjusted average assets 1,911,654 1,911,654 1,900,258 1,900,258 1,752,195 1,752,195 1,735,406 1,735,406 Regulatory capital ratios: Common Equity Tier 1 capital 12.73 % 12.07 * 11.94 11.59 * 15.28 13.89 * 14.83 13.83 * Tier 1 capital 14.47 13.71 * 13.66 13.25 * 15.28 13.89 * 14.83 13.83 * Total capital 16.88 16.84 * 16.14 * 16.47 16.70 16.05 * 16.23 16.00 * Wells Fargo & Company Wells Fargo Bank, N.A. June 30, 2021 December 31, 2020 June 30, 2021 December 31, 2020 Regulatory leverage: Total leverage exposure (3) $ 2,300,416 1,963,971 2,117,710 2,041,952 Supplementary leverage ratio (SLR) (3)(4) 7.09 % 8.05 7.14 7.35 Tier 1 leverage ratio (5) 8.53 8.32 8.62 8.65 *Denotes the binding ratio based on the lower calculation under the Advanced and Standardized Approaches. (1) At June 30, 2021, the impact of the CECL transition provision issued by federal banking regulators on the regulatory capital of the Company was an increase in capital of $879 million, reflecting a $991 million (post-tax) increase in capital recognized upon our initial adoption of CECL, offset by 25% of the $7.5 billion increase in our ACL under CECL from January 1, 2020, through June 30, 2021. The impact of the CECL transition provision on the regulatory capital of the Bank at June 30, 2021, was an increase in capital of $879 million. (2) RWAs for the Company and the Bank included an increase of $547 million under the Standardized Approach and a decrease of $1.4 billion under the Advanced Approach related to the impact of the CECL transition provision on the excess allowance for credit losses as of June 30, 2021. (3) The 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. (4) In 2020, the FRB issued an interim final rule that temporarily allowed the exclusion for on-balance sheet amounts of U.S. Treasury securities and deposits at Federal Reserve Banks from the calculation of total leverage exposure in the denominator of the SLR. The Company adopted this interim final rule, but the Bank did not elect to apply these exclusions. The interim final rule expired on April 1, 2021. (5) The tier 1 leverage ratio consists of tier 1 capital divided by total average assets, excluding goodwill and certain other items as determined under the rule. Table 23.2: Risk-Based Capital and Leverage Ratios – Transition Requirements Wells Fargo & Company Wells Fargo Bank, N.A. Jun 30, 2021 Jun 30, 2021 and Dec 31, 2020 and Dec 31, 2020 Common Equity Tier 1 capital 9.00 % 7.00 Tier 1 capital 10.50 8.50 Total capital 12.50 10.50 Tier 1 leverage 4.00 4.00 Supplementary leverage 5.00 6.00
Nature of Restrictions on Cash and Cash Equivalents	Table 23.3 provides a summary of restrictions on cash and cash equivalents . Table 23.3: Nature of Restrictions on Cash and Cash Equivalents (in millions) Jun 30, Dec 31, Reserve balance for non-U.S. central banks $ 199 243 Segregated for benefit of brokerage customers under federal and other brokerage regulations 878 957

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020		Dec. 31, 2020		Dec. 31, 2019
Summary of Significant Accounting Policies [Line Items]
Interest income - loans	$ 7,095	$ 8,460	[1]	$ 14,296	$ 18,543	[1]
Noninterest income	11,470	8,394		21,194	15,237
Income tax expense (benefit)	1,445	(2,001)	[1]	2,346	(1,648)	[1]
Net Income (loss)	$ 6,040	$ (3,846)	[1]	$ 10,676	$ (2,930)	[1]
Earnings (loss) per common share (in dollars per share)	$ 1.39	$ (1.01)	[1]	$ 2.42	$ (0.94)	[1]
Diluted earnings (loss) per common share (in dollars per share)	$ 1.38	$ (1.01)	[1]	$ 2.40	$ (0.94)	[1]
Equity securities	$ 64,547			$ 64,547			$ 60,008	[2]
Accrued expenses and other liabilities	72,555			72,555			74,360	[2]
Retained earnings	171,765			171,765			162,683	[2]
Supplemental cash flow information - Noncash activities
Held-to-maturity debt securities purchased from securitization of LHFS				16,462	$ 664
Transfers from (to) loans to (from) LHFS				11,551	12,753
Transfers from available-for-sale debt securities to held-to-maturity debt securities				41,298	0
Low-income housing tax credit investments [Member]
Summary of Significant Accounting Policies [Line Items]
Income tax expense (benefit)	$ (49)	$ (49)		$ (111)	(94)
Previously reported [Member] | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]
Summary of Significant Accounting Policies [Line Items]
Interest income - loans		8,448			18,513
Noninterest income		7,956			14,361
Income tax expense (benefit)		(3,917)			(3,758)
Net Income (loss)		$ (2,379)			$ (1,726)
Earnings (loss) per common share (in dollars per share)		$ (0.66)			$ (0.65)
Diluted earnings (loss) per common share (in dollars per share)		$ (0.66)			$ (0.65)
Equity securities							62,260
Accrued expenses and other liabilities							76,404
Retained earnings							162,890
Restatement adjustment [Member] | Low-income housing tax credit investments [Member] | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]
Summary of Significant Accounting Policies [Line Items]
Interest income - loans		$ 0			$ 0
Noninterest income		370			739
Income tax expense (benefit)		1,434			1,584
Net Income (loss)		$ (1,064)			$ (845)
Earnings (loss) per common share (in dollars per share)		$ (0.26)			$ (0.21)
Diluted earnings (loss) per common share (in dollars per share)		$ (0.26)			$ (0.21)
Equity securities							(275)
Accrued expenses and other liabilities							(62)
Retained earnings							(207)		$ 283
Restatement adjustment [Member] | Tax-advantaged renewable energy [Member] | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]
Summary of Significant Accounting Policies [Line Items]
Interest income - loans		$ 12			$ 30
Noninterest income		68			137
Income tax expense (benefit)		482			526
Net Income (loss)		$ (403)			$ (359)
Earnings (loss) per common share (in dollars per share)		$ (0.09)			$ (0.08)
Diluted earnings (loss) per common share (in dollars per share)		$ (0.09)			$ (0.08)
Equity securities							(1,977)
Accrued expenses and other liabilities							(1,982)
Retained earnings							$ 0
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Trading Assets and Liabilities

Trading Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Trading Assets and Liabilities [Line Items]
Trading debt securities	$ 82,727	$ 75,095
Trading equity securities	23,701	23,032
Loans held for sale	25,594	36,384
Gross derivative asset	61,027	65,682
Derivative assets	25,415	25,846
Total trading assets	132,610	123,608
Short sales	22,043	22,441
Gross trading derivative liabilities	49,653	58,065
Derivative liabilities	14,551	16,509
Total trading liabilities	33,870	36,282
Held for trading [Member]
Trading Assets and Liabilities [Line Items]
Loans held for sale	2,269	1,015
Gross derivative asset	54,965	58,767
Netting	(31,052)	(34,301)
Derivative assets	23,913	24,466
Short sales	22,043	22,441
Gross trading derivative liabilities	45,441	53,285
Netting	(33,614)	(39,444)
Derivative liabilities	$ 11,827	$ 13,841

Trading Activities Net Interest

Trading Activities Net Interest Income and Net Gains (Losses) on Trading Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Debt securities, interest income	$ 496	$ 659	$ 1,025	$ 1,425
Equity securities, interest income	132	116	269	322
Total interest income	9,693	11,813	19,739	26,558
Less: Interest expense	105	116	215	257
Net interest Income	8,800	9,892	17,608	21,222
Debt securities, net gains (losses)	769	329	(1,337)	2,684
Equity securities, net gains (losses)	856	2,329	2,009	(2,072)
Loans held for sale, net gains (losses)	15	24	39	12
Derivatives	(1,619)	(1,875)	(342)	247
Total net gains from trading activities	21	807	369	871
Total trading-related net interest and noninterest income	508	1,424	1,390	2,262
Held for trading [Member]
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Equity securities, interest income	93	68	196	205
Loans held for sale, interest income	3	6	15	18
Total interest income	592	733	1,236	1,648
Net interest Income	$ 487	$ 617	$ 1,021	$ 1,391

AFS and HTM Debt Securities, Ou

AFS and HTM Debt Securities, Outstanding (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	$ 186,309	$ 215,533
Available-for-sale, gross unrealized gains	4,042	5,122
Available-for-sale, gross unrealized losses	(454)	(263)
Available-for-sale, at fair value	189,897	220,392
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	260,941	205,720
Held-to-maturity, gross unrealized gains	4,952	6,791
Held-to-maturity, gross unrealized losses	(1,806)	(204)
Held-to-maturity, at fair value	264,087	212,307
Total AFS and HTM Debt securities:
Amortized cost, net	447,250	421,253
Debt securities, gross unrealized gains	8,994	11,913
Debt securities, gross unrealized losses	(2,260)	(467)
Fair value	453,984	432,699
Allowance for credit loss, available-for-sale debt securities	33	28
Allowance for credit loss, held-to-maturity debt securities	77	41
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	35,741	21,954
Available-for-sale, gross unrealized gains	195	205
Available-for-sale, gross unrealized losses	(31)	0
Available-for-sale, at fair value	35,905	22,159
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	27,576	47,295
Held-to-maturity, gross unrealized gains	862	1,472
Held-to-maturity, gross unrealized losses	(409)	(170)
Held-to-maturity, at fair value	28,029	48,597
Non-U.S. government securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	11,201	16,816
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	0	(3)
Available-for-sale, at fair value	11,201	16,813
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	19,121	19,263
Available-for-sale, gross unrealized gains	410	224
Available-for-sale, gross unrealized losses	(32)	(81)
Available-for-sale, at fair value	19,499	19,406
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	28,243	25,860
Held-to-maturity, gross unrealized gains	931	938
Held-to-maturity, gross unrealized losses	(36)	(5)
Held-to-maturity, at fair value	29,138	26,793
Securities of U.S. states and political subdivisions [Member] | Nontaxable preferred debt securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	5,200	5,000
Available-for-sale, at fair value	5,200	5,000
Federal agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	94,186	134,838
Available-for-sale, gross unrealized gains	2,679	4,260
Available-for-sale, gross unrealized losses	(331)	(28)
Available-for-sale, at fair value	96,534	139,070
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	182,891	115,437
Held-to-maturity, gross unrealized gains	2,908	4,182
Held-to-maturity, gross unrealized losses	(1,349)	(21)
Held-to-maturity, at fair value	184,450	119,598
Non-agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	4,349	3,745
Available-for-sale, gross unrealized gains	51	30
Available-for-sale, gross unrealized losses	(22)	(46)
Available-for-sale, at fair value	4,378	3,729
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	948	890
Held-to-maturity, gross unrealized gains	46	51
Held-to-maturity, gross unrealized losses	(11)	(8)
Held-to-maturity, at fair value	983	933
Collateralized loan obligations [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	12,406	9,058
Available-for-sale, gross unrealized gains	8	4
Available-for-sale, gross unrealized losses	(7)	(44)
Available-for-sale, at fair value	12,407	9,018
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	21,283	16,238
Held-to-maturity, gross unrealized gains	205	148
Held-to-maturity, gross unrealized losses	(1)	0
Held-to-maturity, at fair value	21,487	16,386
Other [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	9,305	9,859
Available-for-sale, gross unrealized gains	699	399
Available-for-sale, gross unrealized losses	(31)	(61)
Available-for-sale, at fair value	9,973	10,197
Federal National Mortgage Association (FNMA) [Member]
Total AFS and HTM Debt securities:
Fair value	121,500	103,200
Amortized cost	119,800	99,800
Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Total AFS and HTM Debt securities:
Fair value	91,300	91,500
Amortized cost	$ 89,900	$ 88,700
Stockholders' equity, total [Member] | AFS and HTM debt securities concentration risk [Member] | Minimum [Member] | Federal National Mortgage Association (FNMA) [Member]
Total AFS and HTM Debt securities:
Concentration risk, percentage	10.00%	10.00%
Stockholders' equity, total [Member] | AFS and HTM debt securities concentration risk [Member] | Minimum [Member] | Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Total AFS and HTM Debt securities:
Concentration risk, percentage	10.00%	10.00%

AFS and HTM Debt Securities, HT

AFS and HTM Debt Securities, HTM Debt Securities Purchases and Transfers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	$ 29,468	$ 6,985	$ 60,227	$ 26,792
Transfers from available-for-sale debt securities to held-to-maturity debt securities	24,681	0	41,298	0
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	0	0	0	3,016
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	1,173	15	3,083	881
Federal agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	24,855	6,958	49,722	22,821
Transfers from available-for-sale debt securities to held-to-maturity debt securities	24,681	0	41,298	0
Non-agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	55	12	84	74
Collateralized loan obligations [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	$ 3,385	$ 0	$ 7,338	$ 0

AFS and HTM Debt Securities, In

AFS and HTM Debt Securities, Income Statement Impacts (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Interest Income, Available-for-sale	$ 655	$ 1,349	$ 1,466	$ 3,075
Interest Income, Held-to-maturity	1,048	938	2,020	1,918
Total interest income	1,703	2,287	3,486	4,993
Provision for credit losses, Available-for-sale	(10)	(40)	12	128
Provision for credit losses, Held-to-maturity	(11)	9	36	13
Total provision for credit losses	(21)	(31)	48	141
Debt securities, held-to-maturity, sold, realized gain (Loss)	0	0	0	0
Debt securities [Member]
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Available-for-sale securities, Gross realized gains	1	248	152	504
Available-for-sale securities, Gross realized losses	(1)	(36)	(1)	(40)
Impairment write-downs	0	0	0	(15)
Net realized gains	$ 0	$ 212	$ 151	$ 449

AFS and HTM Debt Securities, _2

AFS and HTM Debt Securities, Investment Grade Debt Securities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, at fair value	$ 189,897	$ 220,392
Available-for-sale, percent of investment grade	99.00%	99.00%
Held-to-maturity, amortized cost	$ 261,018	$ 205,761
Held-to-maturity, percent of investment grade	99.00%	99.00%
Credit rating AA- and above [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Percentage of AFS and HTM debt securities with the same credit rating	94.00%	92.00%
Securities of U.S. Treasury and federal agencies [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, at fair value	$ 132,439	$ 161,229
Available-for-sale, percent of investment grade	100.00%	100.00%
Held-to-maturity, amortized cost	$ 210,467	$ 162,732
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, at fair value	$ 19,499	$ 19,406
Available-for-sale, percent of investment grade	99.00%	99.00%
Held-to-maturity, amortized cost	$ 28,258	$ 25,870
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, at fair value	$ 12,407	$ 9,018
Available-for-sale, percent of investment grade	100.00%	100.00%
Held-to-maturity, amortized cost	$ 21,329	$ 16,255
Held-to-maturity, percent of investment grade	100.00%	100.00%
Collateralized loan obligations [Member] | Credit rating AA- and above [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Percentage of AFS and HTM debt securities with the same credit rating	99.00%	98.00%
All other debt securities [Member]
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, at fair value	$ 25,552	$ 30,739
Available-for-sale, percent of investment grade	91.00%	93.00%
Held-to-maturity, amortized cost	$ 964	$ 904
Held-to-maturity, percent of investment grade	4.00%	6.00%

AFS and HTM Debt Securities, Gr

AFS and HTM Debt Securities, Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	$ (357)	$ (152)
Less than 12 months, Fair value, available-for-sale	34,327	38,898
12 months or more, Gross unrealized losses, available-for-sale	(97)	(111)
12 months or more, Fair value, available-for-sale	6,917	5,353
Total, Gross unrealized losses, available-for-sale	(454)	(263)
Total fair value, available for sale	41,244	44,251
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(31)	0
Less than 12 months, Fair value, available-for-sale	11,924	0
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	(31)	0
Total fair value, available for sale	11,924	0
Non-U.S. government securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	0	(3)
Less than 12 months, Fair value, available-for-sale	0	16,812
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	0	(3)
Total fair value, available for sale	0	16,812
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(21)	(51)
Less than 12 months, Fair value, available-for-sale	1,413	3,681
12 months or more, Gross unrealized losses, available-for-sale	(11)	(30)
12 months or more, Fair value, available-for-sale	717	1,101
Total, Gross unrealized losses, available-for-sale	(32)	(81)
Total fair value, available for sale	2,130	4,782
Federal agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(285)	(27)
Less than 12 months, Fair value, available-for-sale	18,152	11,310
12 months or more, Gross unrealized losses, available-for-sale	(46)	(1)
12 months or more, Fair value, available-for-sale	2,924	316
Total, Gross unrealized losses, available-for-sale	(331)	(28)
Total fair value, available for sale	21,076	11,626
Non-agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(3)	(28)
Less than 12 months, Fair value, available-for-sale	330	1,366
12 months or more, Gross unrealized losses, available-for-sale	(19)	(18)
12 months or more, Fair value, available-for-sale	771	534
Total, Gross unrealized losses, available-for-sale	(22)	(46)
Total fair value, available for sale	1,101	1,900
Collateralized loan obligations [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(2)	(27)
Less than 12 months, Fair value, available-for-sale	1,312	5,082
12 months or more, Gross unrealized losses, available-for-sale	(5)	(17)
12 months or more, Fair value, available-for-sale	1,698	1,798
Total, Gross unrealized losses, available-for-sale	(7)	(44)
Total fair value, available for sale	3,010	6,880
Other [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(15)	(16)
Less than 12 months, Fair value, available-for-sale	1,196	647
12 months or more, Gross unrealized losses, available-for-sale	(16)	(45)
12 months or more, Fair value, available-for-sale	807	1,604
Total, Gross unrealized losses, available-for-sale	(31)	(61)
Total fair value, available for sale	$ 2,003	$ 2,251

AFS Debt Securities, Contractua

AFS Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 186,309	$ 215,533
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	12,895
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	23,267
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	34,702
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	115,445
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	189,897	220,392
Available-for-sale, fair value, remaining contractual maturity, due within one year	12,898
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	23,696
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	34,938
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 118,365
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	2.03%
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	0.95%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.54%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.60%
Securities of U.S. Treasury and federal agencies [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 35,741	21,954
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	5
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	17,965
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	15,777
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	1,994
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	35,905	22,159
Available-for-sale, fair value, remaining contractual maturity, due within one year	5
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	17,978
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	15,837
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 2,085
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	0.75%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	2.00%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	0.33%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.13%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	1.44%
Non-U.S. government securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 11,201	16,816
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	11,176
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	25
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	0
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	11,201	16,813
Available-for-sale, fair value, remaining contractual maturity, due within one year	11,176
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	25
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	$ 0
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	(0.11%)
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	(0.11%)
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	0.42%
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	0.00%
Securities of U.S. states and political subdivisions [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 19,121	19,263
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	1,546
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	2,225
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	5,244
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	10,106
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	19,499	19,406
Available-for-sale, fair value, remaining contractual maturity, due within one year	1,549
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	2,270
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	5,253
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 10,427
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	2.07%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	1.46%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	1.58%
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	2.62%
Federal agency mortgage-backed securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 94,186	134,838
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	8
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	171
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	3,359
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	90,648
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	96,534	139,070
Available-for-sale, fair value, remaining contractual maturity, due within one year	8
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	181
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	3,484
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 92,861
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	2.72%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	2.35%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	3.30%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	2.30%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.74%
Non-agency mortgage-backed securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 4,349	3,745
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	151
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	4,198
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	4,378	3,729
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	150
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 4,228
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	2.00%
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	2.27%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	1.99%
Collateralized loan obligations [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 12,406	9,058
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	90
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	7,306
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	5,010
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	12,407	9,018
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	90
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	7,304
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 5,013
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	1.42%
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	2.21%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.44%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	1.39%
Other [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 9,305	9,859
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	160
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	2,791
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	2,865
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	3,489
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	9,973	$ 10,197
Available-for-sale, fair value, remaining contractual maturity, due within one year	160
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	3,152
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	2,910
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 3,751
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	3.17%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	2.97%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	4.23%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	3.31%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.22%

HTM Debt Securities, Contractua

HTM Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 260,941	$ 205,720
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	12,059
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	14,599
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	10,221
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	224,062
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	264,087	212,307
Held-to-maturity, fair value, remaining contractual maturity, due within one year	12,141
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	15,401
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	10,398
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 226,147
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.15%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	1.98%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.30%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	1.91%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.16%
Securities of U.S. Treasury and federal agencies [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 27,576	47,295
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	11,386
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	12,407
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	3,783
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	28,029	48,597
Held-to-maturity, fair value, remaining contractual maturity, due within one year	11,461
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	13,140
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	$ 3,428
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.10%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	1.98%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.37%
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	1.57%
Securities of U.S. states and political subdivisions [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 28,243	25,860
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	673
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	2,177
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	2,066
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	23,327
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	29,138	26,793
Held-to-maturity, fair value, remaining contractual maturity, due within one year	680
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	2,246
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	2,150
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 24,062
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.19%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	2.09%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	1.90%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	2.65%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.18%
Federal agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 182,891	115,437
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	0
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	182,891
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	184,450	119,598
Held-to-maturity, fair value, remaining contractual maturity, due within one year	0
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 after five years through ten years	0
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 184,450
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.20%
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	0.00%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.20%
Non-agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 948	890
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	0
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	933
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	983	933
Held-to-maturity, fair value, remaining contractual maturity, due within one year	0
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	15
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	$ 968
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	3.09%
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	1.56%
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	3.12%
Collateralized loan obligations [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 21,283	16,238
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	8,155
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	13,128
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	21,487	$ 16,386
Held-to-maturity, fair value, remaining contractual maturity, due within one year	0
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 after five years through ten years	8,248
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 13,239
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	1.68%
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	1.73%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	1.65%

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses, Loans Outstanding (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 852,300	$ 935,155	$ 887,637
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Deferred income as a percentage of total loans outstanding	1.00%		1.00%
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 476,422		$ 478,417
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Financing receivable, accrued interest, writeoff	24	21
Total Commercial [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	80,520		72,638
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	317,618		318,805
Commercial and industrial loans [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	71,409		63,128
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	120,678		121,720
Commercial real estate mortgage [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,619		7,278
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,406		21,805
Commercial real estate construction [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,820		1,603
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,720		16,087
Lease financing [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	672		629
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	375,878		409,220
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Financing receivable, accrued interest, writeoff	104	$ 114
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	264,008		299,960
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	244,371		276,674
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	19,637		23,286
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	34,936		36,664
Auto [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	51,073		48,187
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 25,861		$ 24,409

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses, Significant Activity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	$ 135	$ 334	$ 184	$ 676
Sales	(65)	(1,958)	(526)	(2,797)
Transfers (to)/from LHFS	(458)	(10,387)	(830)	(10,308)
Total Commercial [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	134	332	182	673
Sales	(65)	(1,957)	(338)	(2,770)
Transfers (to)/from LHFS	(359)	(8)	(794)	69
Total Consumer [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	1	2	2	3
Sales	0	(1)	(188)	(27)
Transfers (to)/from LHFS	$ (99)	$ (10,379)	$ (36)	$ (10,377)

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses, Commitments to Lend (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, temporary advance arrangements	$ 82,600
Unfunded credit commitments	667,223	$ 636,435
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	419,424	401,810
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	394,370	378,167
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	8,794	7,993
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	16,260	15,650
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	247,799	234,625
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	37,920	31,530
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	30,170	32,820
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	124,985	121,096
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	54,724	49,179
International [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Letters of credit outstanding, amount	$ 1,400	$ 1,300

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses, Allowance for Credit Losses for Loans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, allowance for credit loss, period increase (decrease)			$ (3,300)
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 18,043	$ 12,022	19,713	$ 10,456
Provision for credit losses, loans	(1,239)	9,565	(2,356)	13,398
Interest income on certain impaired loans	(36)	(38)	(77)	(76)
Loan charge-offs	(752)	(1,371)	(1,631)	(2,609)
Loan recoveries	371	258	737	587
Net loan charge-offs	(381)	(1,113)	(894)	(2,022)
Other	4	0	5	9
Allowance for credit losses, ending balance	16,391	20,436	16,391	20,436
Components:
Allowance for loan losses	15,148		15,148		$ 18,516
Allowance for credit losses, loans	$ 16,391	$ 20,436	$ 16,391	$ 20,436	19,713
Net loan charge-offs as a percentage of average total loans	0.18%	0.46%	0.21%	0.42%
Allowance for loan losses as a percentage of total loans	1.78%	2.02%	1.78%	2.02%
Allowance for credit losses for loans as a percentage of total loans	1.92%	2.19%	1.92%	2.19%
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, beginning balance	$ 0	$ 0	$ 0	$ (1,337)
Components:
Allowance for credit losses, loans					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, beginning balance	0	0	0	8
Components:
Allowance for credit losses, loans					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, beginning balance	18,043	12,022	19,713	9,127
Components:
Allowance for credit losses, loans					19,713
Allowance for loan losses [Member]
Components:
Allowance for loan losses	15,148	18,926	15,148	18,926
Allowance for unfunded credit commitments [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, ending balance	1,243	1,510	1,243	1,510
Components:
Allowance for credit losses, loans	1,243	1,510	1,243	1,510
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	10,682	5,279	11,516	6,245
Provision for credit losses, loans	(1,021)	6,999	(1,688)	9,239
Interest income on certain impaired loans	(15)	(12)	(34)	(26)
Loan charge-offs	(170)	(647)	(402)	(1,040)
Loan recoveries	90	45	173	114
Net loan charge-offs	(80)	(602)	(229)	(926)
Other	4	5	5	(2)
Allowance for credit losses, ending balance	9,570	11,669	9,570	11,669
Components:
Allowance for credit losses, loans	9,570	11,669	9,570	11,669	11,516
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, beginning balance			0	(2,861)
Components:
Allowance for credit losses, loans					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, beginning balance			0	0
Components:
Allowance for credit losses, loans					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, beginning balance			11,516	3,384
Components:
Allowance for credit losses, loans					11,516
Commercial and industrial loans [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(149)	(556)	(308)	(933)
Loan recoveries	68	35	139	79
Commercial real estate mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(11)	(72)	(63)	(75)
Loan recoveries	16	5	22	10
Commercial real estate construction [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	0	0	0	0
Loan recoveries	1	1	1	17
Lease financing [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(10)	(19)	(31)	(32)
Loan recoveries	5	4	11	8
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	7,361	6,743	8,197	4,211
Provision for credit losses, loans	(218)	2,566	(668)	4,159
Interest income on certain impaired loans	(21)	(26)	(43)	(50)
Loan charge-offs	(582)	(724)	(1,229)	(1,569)
Loan recoveries	281	213	564	473
Net loan charge-offs	(301)	(511)	(665)	(1,096)
Other	0	(5)	0	11
Allowance for credit losses, ending balance	6,821	8,767	6,821	8,767
Components:
Allowance for credit losses, loans	6,821	8,767	6,821	8,767	8,197
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, beginning balance			0	1,524
Components:
Allowance for credit losses, loans					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, beginning balance			0	8
Components:
Allowance for credit losses, loans					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, beginning balance			8,197	5,743
Components:
Allowance for credit losses, loans					$ 8,197
Residential mortgage - first lien [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(6)	(20)	(23)	(43)
Loan recoveries	25	18	66	44
Residential mortgage - junior lien [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(12)	(18)	(31)	(48)
Loan recoveries	43	30	81	65
Credit card [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(357)	(415)	(692)	(886)
Loan recoveries	101	88	200	182
Auto [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(128)	(158)	(257)	(314)
Loan recoveries	83	52	160	126
Other consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(79)	(113)	(226)	(278)
Loan recoveries	$ 29	$ 25	$ 57	$ 56

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses, Allowance for Credit Losses for Loans Activity by Portfolio Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 18,043	$ 12,022	$ 19,713	$ 10,456
Provision for credit losses, loans	(1,239)	9,565	(2,356)	13,398
Interest income on certain impaired loans	(36)	(38)	(77)	(76)
Loan charge-offs	(752)	(1,371)	(1,631)	(2,609)
Loan recoveries	371	258	737	587
Net loan charge-offs	(381)	(1,113)	(894)	(2,022)
Allowance related to business combinations/other	4	0	5	9
Allowance for credit losses, ending balance	16,391	20,436	16,391	20,436
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, beginning balance	0	0	0	(1,337)
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, beginning balance	0	0	0	8
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, beginning balance	18,043	12,022	19,713	9,127
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	10,682	5,279	11,516	6,245
Provision for credit losses, loans	(1,021)	6,999	(1,688)	9,239
Interest income on certain impaired loans	(15)	(12)	(34)	(26)
Loan charge-offs	(170)	(647)	(402)	(1,040)
Loan recoveries	90	45	173	114
Net loan charge-offs	(80)	(602)	(229)	(926)
Allowance related to business combinations/other	4	5	5	(2)
Allowance for credit losses, ending balance	9,570	11,669	9,570	11,669
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, beginning balance			0	(2,861)
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, 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, beginning balance			11,516	3,384
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	7,361	6,743	8,197	4,211
Provision for credit losses, loans	(218)	2,566	(668)	4,159
Interest income on certain impaired loans	(21)	(26)	(43)	(50)
Loan charge-offs	(582)	(724)	(1,229)	(1,569)
Loan recoveries	281	213	564	473
Net loan charge-offs	(301)	(511)	(665)	(1,096)
Allowance related to business combinations/other	0	(5)	0	11
Allowance for credit losses, ending balance	$ 6,821	$ 8,767	6,821	8,767
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, beginning balance			0	1,524
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, beginning balance			0	8
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, beginning balance			$ 8,197	$ 5,743

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses, Commercial Loan Categories by Risk Categories and Vintage (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Loans and Leases Receivable Disclosure [Abstract]
Loans	$ 852,300	$ 887,637	$ 935,155
Total Commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	59,700	92,865
Term loans by origination year, fiscal year before current fiscal year	57,249	75,335
Term loans by origination year, two years before current fiscal year	65,585	45,635
Term loans by origination year, three years before current fiscal year	36,729	24,047
Term loans by origination year, four years before current fiscal year	19,392	19,824
Term loans by origination year, more than five years before current fiscal year	40,581	24,070
Revolving loans	196,842	195,484
Revolving loans converted to term loans	344	1,157
Loans	476,422	478,417
Total Commercial [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans	442,600
Total Commercial [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Loans	33,800
Commercial and industrial loans [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	37,780	58,319
Term loans by origination year, fiscal year before current fiscal year	26,488	35,367
Term loans by origination year, two years before current fiscal year	29,710	17,293
Term loans by origination year, three years before current fiscal year	12,669	8,246
Term loans by origination year, four years before current fiscal year	6,408	4,720
Term loans by origination year, more than five years before current fiscal year	13,419	5,071
Revolving loans	190,803	188,641
Revolving loans converted to term loans	341	1,148
Loans	317,618	318,805
Commercial and industrial loans [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	37,051	56,915
Term loans by origination year, fiscal year before current fiscal year	25,171	34,040
Term loans by origination year, two years before current fiscal year	28,385	15,936
Term loans by origination year, three years before current fiscal year	11,075	7,274
Term loans by origination year, four years before current fiscal year	5,582	4,048
Term loans by origination year, more than five years before current fiscal year	12,341	4,738
Revolving loans	183,360	177,107
Revolving loans converted to term loans	341	997
Loans	303,306	301,055
Commercial and industrial loans [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	729	1,404
Term loans by origination year, fiscal year before current fiscal year	1,317	1,327
Term loans by origination year, two years before current fiscal year	1,325	1,357
Term loans by origination year, three years before current fiscal year	1,594	972
Term loans by origination year, four years before current fiscal year	826	672
Term loans by origination year, more than five years before current fiscal year	1,078	333
Revolving loans	7,443	11,534
Revolving loans converted to term loans	0	151
Loans	14,312	17,750
Commercial real estate mortgage [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	16,377	24,577
Term loans by origination year, fiscal year before current fiscal year	21,427	28,658
Term loans by origination year, two years before current fiscal year	25,427	20,496
Term loans by origination year, three years before current fiscal year	18,029	12,400
Term loans by origination year, four years before current fiscal year	10,531	13,207
Term loans by origination year, more than five years before current fiscal year	23,986	16,745
Revolving loans	4,900	5,631
Revolving loans converted to term loans	1	6
Loans	120,678	121,720
Commercial real estate mortgage [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	14,713	22,444
Term loans by origination year, fiscal year before current fiscal year	18,977	26,114
Term loans by origination year, two years before current fiscal year	21,983	18,679
Term loans by origination year, three years before current fiscal year	15,350	11,113
Term loans by origination year, four years before current fiscal year	9,245	11,582
Term loans by origination year, more than five years before current fiscal year	20,321	14,663
Revolving loans	4,478	5,152
Revolving loans converted to term loans	1	6
Loans	105,068	109,753
Commercial real estate mortgage [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	1,664	2,133
Term loans by origination year, fiscal year before current fiscal year	2,450	2,544
Term loans by origination year, two years before current fiscal year	3,444	1,817
Term loans by origination year, three years before current fiscal year	2,679	1,287
Term loans by origination year, four years before current fiscal year	1,286	1,625
Term loans by origination year, more than five years before current fiscal year	3,665	2,082
Revolving loans	422	479
Revolving loans converted to term loans	0	0
Loans	15,610	11,967
Commercial real estate construction [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	3,154	5,691
Term loans by origination year, fiscal year before current fiscal year	5,496	7,026
Term loans by origination year, two years before current fiscal year	6,894	5,298
Term loans by origination year, three years before current fiscal year	4,025	1,740
Term loans by origination year, four years before current fiscal year	1,217	590
Term loans by origination year, more than five years before current fiscal year	479	245
Revolving loans	1,139	1,212
Revolving loans converted to term loans	2	3
Loans	22,406	21,805
Commercial real estate construction [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	2,800	5,242
Term loans by origination year, fiscal year before current fiscal year	4,995	6,574
Term loans by origination year, two years before current fiscal year	6,148	4,771
Term loans by origination year, three years before current fiscal year	3,607	1,736
Term loans by origination year, four years before current fiscal year	775	477
Term loans by origination year, more than five years before current fiscal year	359	235
Revolving loans	1,138	1,212
Revolving loans converted to term loans	2	3
Loans	19,824	20,250
Commercial real estate construction [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	354	449
Term loans by origination year, fiscal year before current fiscal year	501	452
Term loans by origination year, two years before current fiscal year	746	527
Term loans by origination year, three years before current fiscal year	418	4
Term loans by origination year, four years before current fiscal year	442	113
Term loans by origination year, more than five years before current fiscal year	120	10
Revolving loans	1	0
Revolving loans converted to term loans	0	0
Loans	2,582	1,555
Lease financing [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	2,389	4,278
Term loans by origination year, fiscal year before current fiscal year	3,838	4,284
Term loans by origination year, two years before current fiscal year	3,554	2,548
Term loans by origination year, three years before current fiscal year	2,006	1,661
Term loans by origination year, four years before current fiscal year	1,236	1,307
Term loans by origination year, more than five years before current fiscal year	2,697	2,009
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	15,720	16,087
Lease financing [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	2,244	3,970
Term loans by origination year, fiscal year before current fiscal year	3,545	3,851
Term loans by origination year, two years before current fiscal year	3,180	2,176
Term loans by origination year, three years before current fiscal year	1,752	1,464
Term loans by origination year, four years before current fiscal year	1,107	1,199
Term loans by origination year, more than five years before current fiscal year	2,555	1,924
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	14,383	14,584
Lease financing [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Term loans by origination year, current fiscal year	145	308
Term loans by origination year, fiscal year before current fiscal year	293	433
Term loans by origination year, two years before current fiscal year	374	372
Term loans by origination year, three years before current fiscal year	254	197
Term loans by origination year, four years before current fiscal year	129	108
Term loans by origination year, more than five years before current fiscal year	142	85
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	$ 1,337	$ 1,503

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 852,300	$ 887,637	$ 935,155
Nonaccrual loans	7,371	8,728
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	476,422	478,417
Nonaccrual loans	3,549	4,779
Total Commercial [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	471,677	472,181
Total Commercial [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	919	1,379
Total Commercial [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	277	78
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	317,618	318,805
Nonaccrual loans	1,691	2,698
Commercial and industrial loans [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	315,279	315,493
Commercial and industrial loans [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	483	575
Commercial and industrial loans [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	165	39
Commercial real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	120,678	121,720
Nonaccrual loans	1,598	1,774
Commercial real estate mortgage [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	118,719	119,561
Commercial real estate mortgage [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	256	347
Commercial real estate mortgage [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	105	38
Commercial real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,406	21,805
Nonaccrual loans	45	48
Commercial real estate construction [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,329	21,532
Commercial real estate construction [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	25	224
Commercial real estate construction [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7	1
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,720	16,087
Nonaccrual loans	215	259
Lease financing [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,350	15,595
Lease financing [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	155	233
Lease financing [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 0	$ 0

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans	$ 852,300	$ 887,637	$ 935,155
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	4,703	7,041
Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	737	690
Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due	6,100	11,100
Loans, 90 days or more past due and still accruing	3,966	6,351
Total Consumer [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	46,013	75,172
Term loans by origination year, fiscal year before current fiscal year	64,846	60,307
Term loans by origination year, two years before current fiscal year	45,082	22,816
Term loans by origination year, three years before current fiscal year	15,872	29,673
Term loans by origination year, four years before current fiscal year	20,915	35,869
Term loans by origination year, more than five years before current fiscal year	99,415	97,314
Revolving loans	76,082	79,347
Revolving loans converted to term loans	7,653	8,722
Loans	375,878	409,220
Total Consumer [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	460	612
Total Consumer [Member] | 90 days or more past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans	2,900	2,700
Residential mortgage [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	30,541	53,972
Term loans by origination year, fiscal year before current fiscal year	47,729	44,077
Term loans by origination year, two years before current fiscal year	32,551	15,758
Term loans by origination year, three years before current fiscal year	10,776	25,835
Term loans by origination year, four years before current fiscal year	18,378	33,051
Term loans by origination year, more than five years before current fiscal year	97,442	96,349
Revolving loans	19,354	22,677
Revolving loans converted to term loans	7,237	8,241
Loans	264,008	299,960
Residential mortgage - first lien [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	30,528	53,950
Term loans by origination year, fiscal year before current fiscal year	47,707	44,038
Term loans by origination year, two years before current fiscal year	32,516	15,717
Term loans by origination year, three years before current fiscal year	10,741	25,796
Term loans by origination year, four years before current fiscal year	18,350	33,019
Term loans by origination year, more than five years before current fiscal year	96,470	95,160
Revolving loans	6,134	6,934
Revolving loans converted to term loans	1,925	2,060
Loans	244,371	276,674
Residential mortgage - first lien [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	73	135
Residential mortgage - first lien [Member] | Government insured or guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	3	215
Term loans by origination year, fiscal year before current fiscal year	193	639
Term loans by origination year, two years before current fiscal year	364	904
Term loans by origination year, three years before current fiscal year	566	1,076
Term loans by origination year, four years before current fiscal year	635	2,367
Term loans by origination year, more than five years before current fiscal year	18,470	25,039
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	20,231	30,240
Residential mortgage - first lien [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	30,494	53,298
Term loans by origination year, fiscal year before current fiscal year	47,246	43,297
Term loans by origination year, two years before current fiscal year	32,078	14,761
Term loans by origination year, three years before current fiscal year	10,137	24,619
Term loans by origination year, four years before current fiscal year	17,647	30,533
Term loans by origination year, more than five years before current fiscal year	76,251	67,960
Revolving loans	5,989	6,762
Revolving loans converted to term loans	1,598	1,719
Loans	221,440	242,949
Residential mortgage - first lien [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	28	111
Term loans by origination year, fiscal year before current fiscal year	33	76
Term loans by origination year, two years before current fiscal year	52	36
Term loans by origination year, three years before current fiscal year	21	67
Term loans by origination year, four years before current fiscal year	34	79
Term loans by origination year, more than five years before current fiscal year	604	750
Revolving loans	15	52
Revolving loans converted to term loans	30	66
Loans	817	1,237
Residential mortgage - first lien [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	1	88
Term loans by origination year, fiscal year before current fiscal year	11	10
Term loans by origination year, two years before current fiscal year	1	6
Term loans by origination year, three years before current fiscal year	3	12
Term loans by origination year, four years before current fiscal year	3	13
Term loans by origination year, more than five years before current fiscal year	187	305
Revolving loans	8	56
Revolving loans converted to term loans	18	68
Loans	232	558
Residential mortgage - first lien [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	2	232
Term loans by origination year, fiscal year before current fiscal year	8	11
Term loans by origination year, two years before current fiscal year	3	5
Term loans by origination year, three years before current fiscal year	1	8
Term loans by origination year, four years before current fiscal year	7	7
Term loans by origination year, more than five years before current fiscal year	64	197
Revolving loans	6	26
Revolving loans converted to term loans	11	33
Loans	102	519
Residential mortgage - first lien [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	3
Term loans by origination year, fiscal year before current fiscal year	12	4
Term loans by origination year, two years before current fiscal year	6	1
Term loans by origination year, three years before current fiscal year	3	3
Term loans by origination year, four years before current fiscal year	3	5
Term loans by origination year, more than five years before current fiscal year	85	151
Revolving loans	16	17
Revolving loans converted to term loans	23	29
Loans	148	213
Residential mortgage - first lien [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	3
Term loans by origination year, fiscal year before current fiscal year	204	1
Term loans by origination year, two years before current fiscal year	12	4
Term loans by origination year, three years before current fiscal year	10	11
Term loans by origination year, four years before current fiscal year	21	15
Term loans by origination year, more than five years before current fiscal year	809	758
Revolving loans	100	21
Revolving loans converted to term loans	245	145
Loans	1,401	958
Residential mortgage - junior lien [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	13	22
Term loans by origination year, fiscal year before current fiscal year	22	39
Term loans by origination year, two years before current fiscal year	35	41
Term loans by origination year, three years before current fiscal year	35	39
Term loans by origination year, four years before current fiscal year	28	32
Term loans by origination year, more than five years before current fiscal year	972	1,189
Revolving loans	13,220	15,743
Revolving loans converted to term loans	5,312	6,181
Loans	19,637	23,286
Residential mortgage - junior lien [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	12	19
Residential mortgage - junior lien [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	13	22
Term loans by origination year, fiscal year before current fiscal year	22	39
Term loans by origination year, two years before current fiscal year	34	39
Term loans by origination year, three years before current fiscal year	35	37
Term loans by origination year, four years before current fiscal year	28	31
Term loans by origination year, more than five years before current fiscal year	909	1,115
Revolving loans	12,913	15,366
Revolving loans converted to term loans	4,680	5,434
Loans	18,634	22,083
Residential mortgage - junior lien [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	1	1
Term loans by origination year, three years before current fiscal year	0	1
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	15	22
Revolving loans	28	113
Revolving loans converted to term loans	40	160
Loans	84	297
Residential mortgage - junior lien [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	1
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	7	11
Revolving loans	16	154
Revolving loans converted to term loans	29	271
Loans	52	437
Residential mortgage - junior lien [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	1
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	3	7
Revolving loans	11	45
Revolving loans converted to term loans	22	84
Loans	36	137
Residential mortgage - junior lien [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	6	9
Revolving loans	37	36
Revolving loans converted to term loans	49	77
Loans	92	122
Residential mortgage - junior lien [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	1
Term loans by origination year, more than five years before current fiscal year	32	25
Revolving loans	215	29
Revolving loans converted to term loans	492	155
Loans	739	210
Credit card [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	34,688	36,374
Revolving loans converted to term loans	248	290
Loans	34,936	36,664
Credit card [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	271	365
Credit card [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	34,201	35,612
Revolving loans converted to term loans	226	255
Loans	34,427	35,867
Credit card [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	135	243
Revolving loans converted to term loans	7	12
Loans	142	255
Credit card [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	90	167
Revolving loans converted to term loans	6	10
Loans	96	177
Credit card [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	80	144
Revolving loans converted to term loans	7	10
Loans	87	154
Credit card [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	182	208
Revolving loans converted to term loans	2	3
Loans	184	211
Credit card [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	0	0
Auto [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	14,489	19,790
Term loans by origination year, fiscal year before current fiscal year	16,122	14,831
Term loans by origination year, two years before current fiscal year	11,530	6,471
Term loans by origination year, three years before current fiscal year	4,757	3,573
Term loans by origination year, four years before current fiscal year	2,380	2,757
Term loans by origination year, more than five years before current fiscal year	1,795	765
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	51,073	48,187
Auto [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	43	65
Auto [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	14,445	19,625
Term loans by origination year, fiscal year before current fiscal year	15,920	14,561
Term loans by origination year, two years before current fiscal year	11,321	6,307
Term loans by origination year, three years before current fiscal year	4,644	3,459
Term loans by origination year, four years before current fiscal year	2,309	2,603
Term loans by origination year, more than five years before current fiscal year	1,677	697
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	50,316	47,252
Auto [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	33	120
Term loans by origination year, fiscal year before current fiscal year	143	183
Term loans by origination year, two years before current fiscal year	148	114
Term loans by origination year, three years before current fiscal year	81	80
Term loans by origination year, four years before current fiscal year	52	107
Term loans by origination year, more than five years before current fiscal year	85	46
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	542	650
Auto [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	8	32
Term loans by origination year, fiscal year before current fiscal year	42	60
Term loans by origination year, two years before current fiscal year	44	36
Term loans by origination year, three years before current fiscal year	24	25
Term loans by origination year, four years before current fiscal year	14	35
Term loans by origination year, more than five years before current fiscal year	25	16
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	157	204
Auto [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	3	13
Term loans by origination year, fiscal year before current fiscal year	17	26
Term loans by origination year, two years before current fiscal year	17	14
Term loans by origination year, three years before current fiscal year	8	9
Term loans by origination year, four years before current fiscal year	5	12
Term loans by origination year, more than five years before current fiscal year	8	6
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	58	80
Auto [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	1
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	0	1
Auto [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	0	0
Other consumer [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	983	1,410
Term loans by origination year, fiscal year before current fiscal year	995	1,399
Term loans by origination year, two years before current fiscal year	1,001	587
Term loans by origination year, three years before current fiscal year	339	265
Term loans by origination year, four years before current fiscal year	157	61
Term loans by origination year, more than five years before current fiscal year	178	200
Revolving loans	22,040	20,296
Revolving loans converted to term loans	168	191
Loans	25,861	24,409
Other consumer [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	61	28
Other consumer [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	982	1,406
Term loans by origination year, fiscal year before current fiscal year	990	1,383
Term loans by origination year, two years before current fiscal year	994	577
Term loans by origination year, three years before current fiscal year	335	261
Term loans by origination year, four years before current fiscal year	155	59
Term loans by origination year, more than five years before current fiscal year	173	193
Revolving loans	22,011	20,246
Revolving loans converted to term loans	150	162
Loans	25,790	24,287
Other consumer [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	1	2
Term loans by origination year, fiscal year before current fiscal year	2	7
Term loans by origination year, two years before current fiscal year	3	5
Term loans by origination year, three years before current fiscal year	2	2
Term loans by origination year, four years before current fiscal year	1	1
Term loans by origination year, more than five years before current fiscal year	2	3
Revolving loans	8	19
Revolving loans converted to term loans	3	10
Loans	22	49
Other consumer [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	1
Term loans by origination year, fiscal year before current fiscal year	2	5
Term loans by origination year, two years before current fiscal year	2	3
Term loans by origination year, three years before current fiscal year	1	1
Term loans by origination year, four years before current fiscal year	1	1
Term loans by origination year, more than five years before current fiscal year	1	1
Revolving loans	5	10
Revolving loans converted to term loans	1	6
Loans	13	28
Other consumer [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	1
Term loans by origination year, fiscal year before current fiscal year	1	4
Term loans by origination year, two years before current fiscal year	2	2
Term loans by origination year, three years before current fiscal year	1	1
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	1
Revolving loans	4	8
Revolving loans converted to term loans	1	3
Loans	9	20
Other consumer [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	8	10
Revolving loans converted to term loans	2	4
Loans	10	14
Other consumer [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	2	2
Revolving loans	4	3
Revolving loans converted to term loans	11	6
Loans	$ 17	$ 11

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Loans by FICO [Abstract]
Loans	$ 852,300	$ 887,637	$ 935,155
Total Consumer [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	46,013	75,172
Term loans by origination year, fiscal year before current fiscal year	64,846	60,307
Term loans by origination year, two years before current fiscal year	45,082	22,816
Term loans by origination year, three years before current fiscal year	15,872	29,673
Term loans by origination year, four years before current fiscal year	20,915	35,869
Term loans by origination year, more than five years before current fiscal year	99,415	97,314
Revolving loans	76,082	79,347
Revolving loans converted to term loans	7,653	8,722
Loans	375,878	409,220
Total Consumer [Member] | FICO not required [Member]
Loans by FICO [Abstract]
Loans	15,900	13,200
Residential mortgage [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	30,541	53,972
Term loans by origination year, fiscal year before current fiscal year	47,729	44,077
Term loans by origination year, two years before current fiscal year	32,551	15,758
Term loans by origination year, three years before current fiscal year	10,776	25,835
Term loans by origination year, four years before current fiscal year	18,378	33,051
Term loans by origination year, more than five years before current fiscal year	97,442	96,349
Revolving loans	19,354	22,677
Revolving loans converted to term loans	7,237	8,241
Loans	264,008	299,960
Residential mortgage - first lien [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	30,528	53,950
Term loans by origination year, fiscal year before current fiscal year	47,707	44,038
Term loans by origination year, two years before current fiscal year	32,516	15,717
Term loans by origination year, three years before current fiscal year	10,741	25,796
Term loans by origination year, four years before current fiscal year	18,350	33,019
Term loans by origination year, more than five years before current fiscal year	96,470	95,160
Revolving loans	6,134	6,934
Revolving loans converted to term loans	1,925	2,060
Loans	244,371	276,674
Residential mortgage - first lien [Member] | Government insured or guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	3	215
Term loans by origination year, fiscal year before current fiscal year	193	639
Term loans by origination year, two years before current fiscal year	364	904
Term loans by origination year, three years before current fiscal year	566	1,076
Term loans by origination year, four years before current fiscal year	635	2,367
Term loans by origination year, more than five years before current fiscal year	18,470	25,039
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	20,231	30,240
Residential mortgage - first lien [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	14,373	29,365
Term loans by origination year, fiscal year before current fiscal year	29,351	28,652
Term loans by origination year, two years before current fiscal year	21,113	9,911
Term loans by origination year, three years before current fiscal year	6,709	17,416
Term loans by origination year, four years before current fiscal year	12,245	22,215
Term loans by origination year, more than five years before current fiscal year	47,225	40,440
Revolving loans	2,973	3,391
Revolving loans converted to term loans	453	493
Loans	134,442	151,883
Residential mortgage - first lien [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	11,864	17,154
Term loans by origination year, fiscal year before current fiscal year	12,539	9,866
Term loans by origination year, two years before current fiscal year	7,250	2,908
Term loans by origination year, three years before current fiscal year	2,017	4,380
Term loans by origination year, four years before current fiscal year	3,200	4,955
Term loans by origination year, more than five years before current fiscal year	12,684	10,843
Revolving loans	1,229	1,361
Revolving loans converted to term loans	257	274
Loans	51,040	51,741
Residential mortgage - first lien [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	3,281	5,274
Term loans by origination year, fiscal year before current fiscal year	4,024	3,290
Term loans by origination year, two years before current fiscal year	2,566	1,189
Term loans by origination year, three years before current fiscal year	857	1,829
Term loans by origination year, four years before current fiscal year	1,343	2,106
Term loans by origination year, more than five years before current fiscal year	7,473	7,001
Revolving loans	771	879
Revolving loans converted to term loans	243	265
Loans	20,558	21,833
Residential mortgage - first lien [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	794	1,361
Term loans by origination year, fiscal year before current fiscal year	1,103	1,084
Term loans by origination year, two years before current fiscal year	788	490
Term loans by origination year, three years before current fiscal year	363	678
Term loans by origination year, four years before current fiscal year	603	831
Term loans by origination year, more than five years before current fiscal year	4,188	4,403
Revolving loans	463	520
Revolving loans converted to term loans	215	221
Loans	8,517	9,588
Residential mortgage - first lien [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	129	376
Term loans by origination year, fiscal year before current fiscal year	294	287
Term loans by origination year, two years before current fiscal year	222	148
Term loans by origination year, three years before current fiscal year	107	192
Term loans by origination year, four years before current fiscal year	143	226
Term loans by origination year, more than five years before current fiscal year	2,117	2,385
Revolving loans	213	241
Revolving loans converted to term loans	135	154
Loans	3,360	4,009
Residential mortgage - first lien [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	30	55
Term loans by origination year, fiscal year before current fiscal year	47	56
Term loans by origination year, two years before current fiscal year	75	44
Term loans by origination year, three years before current fiscal year	37	56
Term loans by origination year, four years before current fiscal year	51	92
Term loans by origination year, more than five years before current fiscal year	1,234	1,429
Revolving loans	109	127
Revolving loans converted to term loans	93	106
Loans	1,676	1,965
Residential mortgage - first lien [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	7	14
Term loans by origination year, fiscal year before current fiscal year	11	29
Term loans by origination year, two years before current fiscal year	28	36
Term loans by origination year, three years before current fiscal year	16	44
Term loans by origination year, four years before current fiscal year	32	66
Term loans by origination year, more than five years before current fiscal year	1,303	1,789
Revolving loans	139	162
Revolving loans converted to term loans	145	175
Loans	1,681	2,315
Residential mortgage - first lien [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	47	136
Term loans by origination year, fiscal year before current fiscal year	145	135
Term loans by origination year, two years before current fiscal year	110	87
Term loans by origination year, three years before current fiscal year	69	125
Term loans by origination year, four years before current fiscal year	98	161
Term loans by origination year, more than five years before current fiscal year	1,776	1,831
Revolving loans	237	253
Revolving loans converted to term loans	384	372
Loans	2,866	3,100
Residential mortgage - junior lien [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	13	22
Term loans by origination year, fiscal year before current fiscal year	22	39
Term loans by origination year, two years before current fiscal year	35	41
Term loans by origination year, three years before current fiscal year	35	39
Term loans by origination year, four years before current fiscal year	28	32
Term loans by origination year, more than five years before current fiscal year	972	1,189
Revolving loans	13,220	15,743
Revolving loans converted to term loans	5,312	6,181
Loans	19,637	23,286
Residential mortgage - junior lien [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	236	293
Revolving loans	6,715	7,973
Revolving loans converted to term loans	1,612	1,819
Loans	8,563	10,085
Residential mortgage - junior lien [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	142	177
Revolving loans	2,588	3,005
Revolving loans converted to term loans	906	1,032
Loans	3,636	4,214
Residential mortgage - junior lien [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	169	207
Revolving loans	1,721	2,093
Revolving loans converted to term loans	891	1,034
Loans	2,781	3,334
Residential mortgage - junior lien [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	143	183
Revolving loans	1,022	1,233
Revolving loans converted to term loans	719	854
Loans	1,884	2,270
Residential mortgage - junior lien [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	82	103
Revolving loans	396	503
Revolving loans converted to term loans	405	493
Loans	883	1,099
Residential mortgage - junior lien [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	52	67
Revolving loans	189	241
Revolving loans converted to term loans	232	299
Loans	473	607
Residential mortgage - junior lien [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	53	76
Revolving loans	195	254
Revolving loans converted to term loans	267	374
Loans	515	704
Residential mortgage - junior lien [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	13	22
Term loans by origination year, fiscal year before current fiscal year	22	39
Term loans by origination year, two years before current fiscal year	35	41
Term loans by origination year, three years before current fiscal year	35	39
Term loans by origination year, four years before current fiscal year	28	32
Term loans by origination year, more than five years before current fiscal year	95	83
Revolving loans	394	441
Revolving loans converted to term loans	280	276
Loans	902	973
Credit card [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	34,688	36,374
Revolving loans converted to term loans	248	290
Loans	34,936	36,664
Credit card [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	3,987	3,860
Revolving loans converted to term loans	1	1
Loans	3,988	3,861
Credit card [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	5,561	5,438
Revolving loans converted to term loans	8	7
Loans	5,569	5,445
Credit card [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	7,825	7,897
Revolving loans converted to term loans	30	29
Loans	7,855	7,926
Credit card [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	8,437	8,854
Revolving loans converted to term loans	57	60
Loans	8,494	8,914
Credit card [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	5,122	5,657
Revolving loans converted to term loans	56	64
Loans	5,178	5,721
Credit card [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	1,929	2,242
Revolving loans converted to term loans	39	46
Loans	1,968	2,288
Credit card [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	1,819	2,416
Revolving loans converted to term loans	56	82
Loans	1,875	2,498
Credit card [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	8	10
Revolving loans converted to term loans	1	1
Loans	9	11
Auto [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	14,489	19,790
Term loans by origination year, fiscal year before current fiscal year	16,122	14,831
Term loans by origination year, two years before current fiscal year	11,530	6,471
Term loans by origination year, three years before current fiscal year	4,757	3,573
Term loans by origination year, four years before current fiscal year	2,380	2,757
Term loans by origination year, more than five years before current fiscal year	1,795	765
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	51,073	48,187
Auto [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	2,576	2,875
Term loans by origination year, fiscal year before current fiscal year	2,329	2,606
Term loans by origination year, two years before current fiscal year	2,157	1,211
Term loans by origination year, three years before current fiscal year	941	731
Term loans by origination year, four years before current fiscal year	509	452
Term loans by origination year, more than five years before current fiscal year	271	104
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	8,783	7,979
Auto [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	2,505	3,036
Term loans by origination year, fiscal year before current fiscal year	2,698	2,662
Term loans by origination year, two years before current fiscal year	2,145	1,122
Term loans by origination year, three years before current fiscal year	850	579
Term loans by origination year, four years before current fiscal year	390	349
Term loans by origination year, more than five years before current fiscal year	216	81
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	8,804	7,829
Auto [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	2,430	3,162
Term loans by origination year, fiscal year before current fiscal year	2,721	2,514
Term loans by origination year, two years before current fiscal year	1,999	1,095
Term loans by origination year, three years before current fiscal year	825	576
Term loans by origination year, four years before current fiscal year	387	395
Term loans by origination year, more than five years before current fiscal year	251	98
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	8,613	7,840
Auto [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	2,518	3,534
Term loans by origination year, fiscal year before current fiscal year	2,965	2,542
Term loans by origination year, two years before current fiscal year	1,968	1,066
Term loans by origination year, three years before current fiscal year	772	545
Term loans by origination year, four years before current fiscal year	358	400
Term loans by origination year, more than five years before current fiscal year	259	105
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	8,840	8,192
Auto [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	2,267	3,381
Term loans by origination year, fiscal year before current fiscal year	2,548	1,948
Term loans by origination year, two years before current fiscal year	1,400	763
Term loans by origination year, three years before current fiscal year	527	395
Term loans by origination year, four years before current fiscal year	257	334
Term loans by origination year, more than five years before current fiscal year	222	94
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	7,221	6,915
Auto [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	1,418	2,208
Term loans by origination year, fiscal year before current fiscal year	1,519	1,165
Term loans by origination year, two years before current fiscal year	822	479
Term loans by origination year, three years before current fiscal year	333	274
Term loans by origination year, four years before current fiscal year	178	276
Term loans by origination year, more than five years before current fiscal year	190	87
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	4,460	4,489
Auto [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	775	1,581
Term loans by origination year, fiscal year before current fiscal year	1,313	1,357
Term loans by origination year, two years before current fiscal year	993	730
Term loans by origination year, three years before current fiscal year	498	463
Term loans by origination year, four years before current fiscal year	288	533
Term loans by origination year, more than five years before current fiscal year	362	186
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	4,229	4,850
Auto [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	13
Term loans by origination year, fiscal year before current fiscal year	29	37
Term loans by origination year, two years before current fiscal year	46	5
Term loans by origination year, three years before current fiscal year	11	10
Term loans by origination year, four years before current fiscal year	13	18
Term loans by origination year, more than five years before current fiscal year	24	10
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	123	93
Other consumer [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	983	1,410
Term loans by origination year, fiscal year before current fiscal year	995	1,399
Term loans by origination year, two years before current fiscal year	1,001	587
Term loans by origination year, three years before current fiscal year	339	265
Term loans by origination year, four years before current fiscal year	157	61
Term loans by origination year, more than five years before current fiscal year	178	200
Revolving loans	22,040	20,296
Revolving loans converted to term loans	168	191
Loans	25,861	24,409
Other consumer [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	253	353
Term loans by origination year, fiscal year before current fiscal year	250	287
Term loans by origination year, two years before current fiscal year	204	94
Term loans by origination year, three years before current fiscal year	59	35
Term loans by origination year, four years before current fiscal year	18	10
Term loans by origination year, more than five years before current fiscal year	60	71
Revolving loans	1,839	2,249
Revolving loans converted to term loans	19	21
Loans	2,702	3,120
Other consumer [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	265	342
Term loans by origination year, fiscal year before current fiscal year	225	279
Term loans by origination year, two years before current fiscal year	186	93
Term loans by origination year, three years before current fiscal year	59	29
Term loans by origination year, four years before current fiscal year	15	10
Term loans by origination year, more than five years before current fiscal year	31	34
Revolving loans	943	1,110
Revolving loans converted to term loans	22	16
Loans	1,746	1,913
Other consumer [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	190	262
Term loans by origination year, fiscal year before current fiscal year	184	258
Term loans by origination year, two years before current fiscal year	175	107
Term loans by origination year, three years before current fiscal year	67	35
Term loans by origination year, four years before current fiscal year	19	11
Term loans by origination year, more than five years before current fiscal year	26	30
Revolving loans	829	915
Revolving loans converted to term loans	28	26
Loans	1,518	1,644
Other consumer [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	115	156
Term loans by origination year, fiscal year before current fiscal year	125	213
Term loans by origination year, two years before current fiscal year	147	99
Term loans by origination year, three years before current fiscal year	61	36
Term loans by origination year, four years before current fiscal year	19	11
Term loans by origination year, more than five years before current fiscal year	21	24
Revolving loans	711	798
Revolving loans converted to term loans	26	31
Loans	1,225	1,368
Other consumer [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	47	71
Term loans by origination year, fiscal year before current fiscal year	52	112
Term loans by origination year, two years before current fiscal year	74	59
Term loans by origination year, three years before current fiscal year	34	21
Term loans by origination year, four years before current fiscal year	12	7
Term loans by origination year, more than five years before current fiscal year	11	10
Revolving loans	343	415
Revolving loans converted to term loans	19	23
Loans	592	718
Other consumer [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	9	18
Term loans by origination year, fiscal year before current fiscal year	14	36
Term loans by origination year, two years before current fiscal year	24	22
Term loans by origination year, three years before current fiscal year	13	9
Term loans by origination year, four years before current fiscal year	5	4
Term loans by origination year, more than five years before current fiscal year	6	8
Revolving loans	122	151
Revolving loans converted to term loans	11	13
Loans	204	261
Other consumer [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	3	13
Term loans by origination year, fiscal year before current fiscal year	13	41
Term loans by origination year, two years before current fiscal year	27	30
Term loans by origination year, three years before current fiscal year	16	12
Term loans by origination year, four years before current fiscal year	6	5
Term loans by origination year, more than five years before current fiscal year	7	7
Revolving loans	121	161
Revolving loans converted to term loans	14	18
Loans	207	287
Other consumer [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	101	195
Term loans by origination year, fiscal year before current fiscal year	132	173
Term loans by origination year, two years before current fiscal year	164	83
Term loans by origination year, three years before current fiscal year	30	88
Term loans by origination year, four years before current fiscal year	63	3
Term loans by origination year, more than five years before current fiscal year	16	16
Revolving loans	1,197	1,248
Revolving loans converted to term loans	29	43
Loans	1,732	1,849
Other consumer [Member] | FICO not required [Member] | Non-government insured/guaranteed [Member]
Loans by FICO [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	0	0
Revolving loans	15,935	13,249
Revolving loans converted to term loans	0	0
Loans	$ 15,935	$ 13,249

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
High value properties, threshold	$ 1
Loans by Loan to Value [Abstract]
Loans	852,300	$ 887,637	$ 935,155
Total Consumer [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	46,013	75,172
Term loans by origination year, fiscal year before current fiscal year	64,846	60,307
Term loans by origination year, two years before current fiscal year	45,082	22,816
Term loans by origination year, three years before current fiscal year	15,872	29,673
Term loans by origination year, four years before current fiscal year	20,915	35,869
Term loans by origination year, more than five years before current fiscal year	99,415	97,314
Revolving loans	76,082	79,347
Revolving loans converted to term loans	7,653	8,722
Loans	375,878	409,220
Residential mortgage [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	30,541	53,972
Term loans by origination year, fiscal year before current fiscal year	47,729	44,077
Term loans by origination year, two years before current fiscal year	32,551	15,758
Term loans by origination year, three years before current fiscal year	10,776	25,835
Term loans by origination year, four years before current fiscal year	18,378	33,051
Term loans by origination year, more than five years before current fiscal year	97,442	96,349
Revolving loans	19,354	22,677
Revolving loans converted to term loans	7,237	8,241
Loans	264,008	299,960
Residential mortgage - first lien [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	30,528	53,950
Term loans by origination year, fiscal year before current fiscal year	47,707	44,038
Term loans by origination year, two years before current fiscal year	32,516	15,717
Term loans by origination year, three years before current fiscal year	10,741	25,796
Term loans by origination year, four years before current fiscal year	18,350	33,019
Term loans by origination year, more than five years before current fiscal year	96,470	95,160
Revolving loans	6,134	6,934
Revolving loans converted to term loans	1,925	2,060
Loans	244,371	276,674
Residential mortgage - first lien [Member] | Government insured or guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	3	215
Term loans by origination year, fiscal year before current fiscal year	193	639
Term loans by origination year, two years before current fiscal year	364	904
Term loans by origination year, three years before current fiscal year	566	1,076
Term loans by origination year, four years before current fiscal year	635	2,367
Term loans by origination year, more than five years before current fiscal year	18,470	25,039
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	20,231	30,240
Residential mortgage - first lien [Member] | LTV 0-60% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	9,789	16,582
Term loans by origination year, fiscal year before current fiscal year	18,204	15,449
Term loans by origination year, two years before current fiscal year	14,733	6,065
Term loans by origination year, three years before current fiscal year	5,341	13,190
Term loans by origination year, four years before current fiscal year	11,884	21,097
Term loans by origination year, more than five years before current fiscal year	66,680	59,291
Revolving loans	4,604	4,971
Revolving loans converted to term loans	1,567	1,587
Loans	132,802	138,232
Residential mortgage - first lien [Member] | LTV 60.01-80% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	20,654	34,639
Term loans by origination year, fiscal year before current fiscal year	27,433	24,736
Term loans by origination year, two years before current fiscal year	15,773	7,724
Term loans by origination year, three years before current fiscal year	4,339	10,745
Term loans by origination year, four years before current fiscal year	5,369	8,970
Term loans by origination year, more than five years before current fiscal year	10,096	9,333
Revolving loans	1,071	1,323
Revolving loans converted to term loans	256	326
Loans	84,991	97,796
Residential mortgage - first lien [Member] | LTV 80.01-100% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	40	2,332
Term loans by origination year, fiscal year before current fiscal year	1,720	2,975
Term loans by origination year, two years before current fiscal year	1,498	900
Term loans by origination year, three years before current fiscal year	416	654
Term loans by origination year, four years before current fiscal year	382	441
Term loans by origination year, more than five years before current fiscal year	801	1,003
Revolving loans	304	425
Revolving loans converted to term loans	68	100
Loans	5,229	8,830
Residential mortgage - first lien [Member] | LTV 100.01-120% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	41
Term loans by origination year, fiscal year before current fiscal year	35	106
Term loans by origination year, two years before current fiscal year	52	45
Term loans by origination year, three years before current fiscal year	19	40
Term loans by origination year, four years before current fiscal year	16	41
Term loans by origination year, more than five years before current fiscal year	101	168
Revolving loans	72	117
Revolving loans converted to term loans	17	26
Loans	312	584
Residential mortgage - first lien [Member] | LTV greater than 120% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	31
Term loans by origination year, fiscal year before current fiscal year	21	41
Term loans by origination year, two years before current fiscal year	17	16
Term loans by origination year, three years before current fiscal year	6	19
Term loans by origination year, four years before current fiscal year	7	16
Term loans by origination year, more than five years before current fiscal year	50	78
Revolving loans	30	44
Revolving loans converted to term loans	6	8
Loans	137	253
Residential mortgage - first lien [Member] | No LTV/CLTV available [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	42	110
Term loans by origination year, fiscal year before current fiscal year	101	92
Term loans by origination year, two years before current fiscal year	79	63
Term loans by origination year, three years before current fiscal year	54	72
Term loans by origination year, four years before current fiscal year	57	87
Term loans by origination year, more than five years before current fiscal year	272	248
Revolving loans	53	54
Revolving loans converted to term loans	11	13
Loans	669	739
Residential mortgage - junior lien [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	13	22
Term loans by origination year, fiscal year before current fiscal year	22	39
Term loans by origination year, two years before current fiscal year	35	41
Term loans by origination year, three years before current fiscal year	35	39
Term loans by origination year, four years before current fiscal year	28	32
Term loans by origination year, more than five years before current fiscal year	972	1,189
Revolving loans	13,220	15,743
Revolving loans converted to term loans	5,312	6,181
Loans	19,637	23,286
Residential mortgage - junior lien [Member] | LTV 0-60% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	496	548
Revolving loans	8,124	8,626
Revolving loans converted to term loans	3,558	3,742
Loans	12,178	12,916
Residential mortgage - junior lien [Member] | LTV 60.01-80% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	254	335
Revolving loans	3,718	5,081
Revolving loans converted to term loans	1,178	1,554
Loans	5,150	6,970
Residential mortgage - junior lien [Member] | LTV 80.01-100% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	123	187
Revolving loans	1,051	1,507
Revolving loans converted to term loans	424	641
Loans	1,598	2,335
Residential mortgage - junior lien [Member] | LTV 100.01-120% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	31	59
Revolving loans	225	376
Revolving loans converted to term loans	92	156
Loans	348	591
Residential mortgage - junior lien [Member] | LTV greater than 120% [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	0	0
Term loans by origination year, two years before current fiscal year	0	0
Term loans by origination year, three years before current fiscal year	0	0
Term loans by origination year, four years before current fiscal year	0	0
Term loans by origination year, more than five years before current fiscal year	8	15
Revolving loans	78	128
Revolving loans converted to term loans	28	50
Loans	114	193
Residential mortgage - junior lien [Member] | No LTV/CLTV available [Member] | Non-government insured/guaranteed [Member]
Loans by Loan to Value [Abstract]
Term loans by origination year, current fiscal year	13	22
Term loans by origination year, fiscal year before current fiscal year	22	39
Term loans by origination year, two years before current fiscal year	35	41
Term loans by origination year, three years before current fiscal year	35	39
Term loans by origination year, four years before current fiscal year	28	32
Term loans by origination year, more than five years before current fiscal year	60	45
Revolving loans	24	25
Revolving loans converted to term loans	32	38
Loans	$ 249	$ 281

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses, Nonaccrual (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Nonaccrual Loans [Abstract]
Nonaccrual loans	$ 7,371		$ 8,728
Nonaccrual loans without related allowance for credit losses	3,130		2,875
Recognized interest income	178	$ 169
Total Commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	3,549		4,779
Nonaccrual loans without related allowance for credit losses	718		506
Recognized interest income	79	52
Commercial and industrial loans [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	1,691		2,698
Nonaccrual loans without related allowance for credit losses	464		382
Recognized interest income	45	30
Commercial real estate mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	1,598		1,774
Nonaccrual loans without related allowance for credit losses	201		93
Recognized interest income	33	17
Commercial real estate construction [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	45		48
Nonaccrual loans without related allowance for credit losses	13		15
Recognized interest income	1	5
Lease financing [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	215		259
Nonaccrual loans without related allowance for credit losses	40		16
Recognized interest income	0	0
Total Consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	3,822		3,949
Nonaccrual loans without related allowance for credit losses	2,412		2,369
Recognized interest income	99	117
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans in process of foreclosure, amount	939		2,100
Residential mortgage - first lien [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	2,852		2,957
Nonaccrual loans without related allowance for credit losses	1,949		1,908
Recognized interest income	56	81
Residential mortgage - junior lien [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	713		754
Nonaccrual loans without related allowance for credit losses	463		461
Recognized interest income	25	28
Auto [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	221		202
Nonaccrual loans without related allowance for credit losses	0		0
Recognized interest income	17	7
Other consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	36		36
Nonaccrual loans without related allowance for credit losses	0		0
Recognized interest income	1	$ 1
Government guaranteed mortgage loans upon foreclosure receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans in process of foreclosure, amount	$ 650		$ 1,700

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses, 90 Days or More Past Due and Still Accruing (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	$ 4,703	$ 7,041
Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	737	690
Government insured or guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	3,966	6,351
Total Commercial [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	277	78
Commercial and industrial loans [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	165	39
Commercial real estate mortgage [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	105	38
Commercial real estate construction [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	7	1
Total Consumer [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	460	612
Residential mortgage - first lien [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	73	135
Residential mortgage - junior lien [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	12	19
Credit card [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	271	365
Auto [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	43	65
Other consumer [Member] | Non-government insured/guaranteed [Member]
Loans 90 days or more past due and still accruing:
Loans, 90 days or more past due and still accruing	$ 61	$ 28

Loans and Allowance for Cred_15

Loans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, troubled debt restructuring	$ 12,500		$ 12,500		$ 14,500
Loans and leases receivable, impaired, commitment to lend	344		344		$ 489
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	942	$ 1,503	1,893	$ 2,357
Financial effects of modifications [Abstract]
Charge-offs	$ 45	$ 67	$ 59	$ 117
Weighted average interest rate reduction	11.68%	8.17%	12.31%	8.30%
Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 466	$ 1,069	$ 805	$ 1,587
Financial effects of modifications [Abstract]
Charge-offs	$ 14	$ 38	$ 20	$ 82
Weighted average interest rate reduction	1.17%	1.00%	1.05%	0.90%
Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 331	$ 965	$ 562	$ 1,312
Financial effects of modifications [Abstract]
Charge-offs	$ 14	$ 38	$ 20	$ 82
Weighted average interest rate reduction	1.22%	0.79%	1.10%	0.73%
Commercial real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 132	$ 103	$ 236	$ 268
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	1.15%	1.75%	1.04%	1.17%
Commercial real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 2	$ 0	$ 3	$ 6
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	2.49%
Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 1	$ 1	$ 4	$ 1
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 476	$ 434	$ 1,088	$ 770
Loan restructuring, trial modifications, amount	2	(13)	2	(11)
Financial effects of modifications [Abstract]
Charge-offs	$ 31	$ 29	$ 39	$ 35
Weighted average interest rate reduction	13.24%	10.09%	13.67%	10.04%
Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 361	$ 302	$ 900	$ 492
Financial effects of modifications [Abstract]
Charge-offs	$ 1	$ 1	$ 1	$ 1
Weighted average interest rate reduction	1.26%	1.84%	1.53%	1.73%
Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 11	$ 27	$ 29	$ 48
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 1	$ 0
Weighted average interest rate reduction	2.51%	2.39%	2.44%	2.38%
Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 24	$ 62	$ 56	$ 157
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	19.02%	12.79%	18.93%	12.51%
Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 74	$ 47	$ 89	$ 61
Financial effects of modifications [Abstract]
Charge-offs	$ 30	$ 28	$ 37	$ 34
Weighted average interest rate reduction	3.93%	4.42%	3.90%	4.56%
Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 4	$ 9	$ 12	$ 23
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	12.02%	5.90%	12.14%	7.71%
Primary modification type, Principal [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 42	$ 1	$ 42	$ 21
Primary modification type, Principal [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	41	0	41	18
Primary modification type, Principal [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	18
Primary modification type, Principal [Member] | Commercial real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	41	0	41	0
Primary modification type, Principal [Member] | Commercial real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Principal [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Principal [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	1	1	3
Loan restructuring, trial modifications, amount	0	0	0	0
Primary modification type, Principal [Member] | Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Principal [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Principal [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Principal [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	1	1	3
Primary modification type, Principal [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Interest rate reduction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	45	106	102	266
Primary modification type, Interest rate reduction [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	6	22	11	50
Primary modification type, Interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	17	2	32
Primary modification type, Interest rate reduction [Member] | Commercial real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	5	5	9	18
Primary modification type, Interest rate reduction [Member] | Commercial real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Interest rate reduction [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Interest rate reduction [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	39	84	91	216
Loan restructuring, trial modifications, amount	0	0	0	0
Primary modification type, Interest rate reduction [Member] | Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	8	14	15	31
Primary modification type, Interest rate reduction [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	2	3	7	9
Primary modification type, Interest rate reduction [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	24	62	56	157
Primary modification type, Interest rate reduction [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	2	2	4
Primary modification type, Interest rate reduction [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	4	3	11	15
Primary modification type, Other concessions [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	855	1,396	1,749	2,070
Primary modification type, Other concessions [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	419	1,047	753	1,519
Primary modification type, Other concessions [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	330	948	560	1,262
Primary modification type, Other concessions [Member] | Commercial real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	86	98	186	250
Primary modification type, Other concessions [Member] | Commercial real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	2	0	3	6
Primary modification type, Other concessions [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	1	4	1
Primary modification type, Other concessions [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	436	349	996	551
Loan restructuring, trial modifications, amount	2	(13)	2	(11)
Primary modification type, Other concessions [Member] | Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	353	288	885	461
Primary modification type, Other concessions [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	9	24	22	39
Primary modification type, Other concessions [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Primary modification type, Other concessions [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	72	44	86	54
Primary modification type, Other concessions [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	6	1	8
Trial modifications [Member] | Total Consumer [Member]
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Financial effects of modification, Recorded investment related to interest rate reduction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 45	$ 106	$ 102	$ 266
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	6	22	11	50
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	17	2	32
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Commercial real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	5	5	9	18
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Commercial real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0	0
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	39	84	91	216
Loan restructuring, trial modifications, amount	0	0	0	0
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	8	14	15	31
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	2	3	7	9
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	24	62	56	157
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	2	2	4
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	4	3	11	15
Loans remodified [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 202	$ 221	$ 458	$ 484

Loans and Allowance for Cred_16

Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 113	$ 154	$ 196	$ 401
Total Commercial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	93	118	150	324
Commercial and industrial loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	84	37	125	222
Commercial real estate mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	9	81	25	102
Commercial real estate construction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	0	0	0	0
Lease financing [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	0	0	0	0
Total Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	20	36	46	77
Residential mortgage - first lien [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	2	8	5	18
Residential mortgage - junior lien [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	0	6	1	8
Credit card [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	6	19	16	45
Auto [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	12	1	23	3
Other consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 0	$ 2	$ 1	$ 3

Leasing Activity, Leasing Reven

Leasing Activity, Leasing Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Interest income on lease financing	$ 172	$ 208	$ 353	$ 437
Variable revenues on lease financing	25	26	51	54
Fixed revenues on operating leases	254	294	514	608
Variable revenues on operating leases	18	12	36	25
Other lease-related revenues	16	3	27	1
Noninterest income on leases	313	335	628	688
Total leasing revenue	485	543	981	1,125
Leasing Activity Disclosures Textual [Abstract]
Lease expense	$ 226	$ 244	$ 452	$ 504

Leasing Activity, Operating Lea

Leasing Activity, Operating Lease Right of Use (ROU) Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Leases [Line Items]
ROU assets	$ 4,053	$ 4,306
Other assets [Member]
Leases [Line Items]
ROU assets	4,053	4,306
Accrued expenses and other liabilities [Member]
Leases [Line Items]
Lease liabilities	$ 4,705	$ 4,962

Leasing Activity, Lease Costs (

Leasing Activity, Lease Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Fixed lease expense – operating leases	$ 265	$ 292	$ 530	$ 583
Variable lease expense	69	80	147	146
Other	(28)	(42)	(31)	(56)
Total lease costs	$ 306	$ 330	$ 646	$ 673

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Equity Securities [Line Items]
Equity securities, carried at fair value	$ 35,331	$ 34,009
Equity securities	64,547	60,008	[1]
Held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	23,701	23,032
Not held for trading [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	11,630	10,977
Equity securities	40,846	36,976
Not held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	1,624	1,564
Not held for trading [Member] | Nonmarketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	10,006	9,413
Not held for trading [Member] | Equity method investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	7,128	6,850
Not held for trading [Member] | Private equity [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	2,897	2,960
Not held for trading [Member] | Tax-advantaged renewable energy [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	3,853	3,481
Not held for trading [Member] | New market tax credit and other [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	378	409
Not held for trading [Member] | Low-income housing tax credit investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	11,439	11,353
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	3,585	3,588
Not held for trading [Member] | Other method investments - Private equity [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	$ 7,064	$ 4,208
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Equity Securities - Low-Income

Equity Securities - Low-Income Housing Tax Credit Investments (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020		Dec. 31, 2020
LIHTC Investment [Line Items]
Income tax expense (benefit)	$ 1,445	$ (2,001)	[1]	$ 2,346	$ (1,648)	[1]
Equity Securities Disclosures Textual [Abstract]
Affordable housing tax credits commitment, payment period				3 years			3 years
Qualified affordable housing project investments, commitment	4,200			$ 4,200			$ 4,200
Low-income housing tax credit investments [Member]
LIHTC Investment [Line Items]
Proportional amortization of investments	382	352		764	703
Tax credits and other tax benefits	(431)	(401)		(875)	(797)
Income tax expense (benefit)	$ (49)	$ (49)		$ (111)	$ (94)
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Equity Securities Net Gains (Lo

Equity Securities Net Gains (Losses) from Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net Gains (Losses) from Equity Securities [Line Items]
Total net gains (losses) from equity securities not held for trading	$ 2,696	$ 533	$ 3,088	$ (868)
Not designated as hedging instrument [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	(2,001)	(2,868)	(1,238)	4,214
Economic hedges [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	(560)	(1,394)	(454)	2,940
Net gain (loss) from equity securities [Member] | Economic hedges [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	(762)	(1,402)	(337)	(183)
Equity securities [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total equity securities carried at fair value	967	1,818	669	(89)
Marketable equity securities [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total equity securities carried at fair value	74	394	134	(409)
Nonmarketable equity securities [Member] | Measurement alternative [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total net gains (losses) from equity securities not held for trading	2,194	(23)	2,407	(153)
Nonmarketable equity securities [Member] | Net gain (loss) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total equity securities carried at fair value	893	1,424	535	320
Total nonmarketable equity securities not carried at fair value	2,491	117	2,756	(596)
Nonmarketable equity securities [Member] | Impairment write-downs [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total nonmarketable equity securities not carried at fair value	(42)	(106)	(57)	(1,041)
Nonmarketable equity securities [Member] | Net unrealized gains (losses) [Member] | Measurement alternative [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total nonmarketable equity securities not carried at fair value	2,037	24	2,262	246
Nonmarketable equity securities [Member] | Net realized gains (losses) on sale [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total nonmarketable equity securities not carried at fair value	$ 496	$ 199	$ 551	$ 199

Equity Securities Net Gains (_2

Equity Securities Net Gains (Losses) from Measurement Alternative Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net Gains (Losses) from Measurement Alternative Equity Securities
Total net gains recognized during the period	$ 2,696	$ 533	$ 3,088	$ (868)
Measurement alternative [Member] | Nonmarketable equity securities [Member]
Net Gains (Losses) from Measurement Alternative Equity Securities
Gross unrealized gains due to observable price changes	2,037	24	2,262	246
Impairment write-downs	(38)	(58)	(50)	(412)
Realized net gains from sale	195	11	195	13
Total net gains recognized during the period	$ 2,194	$ (23)	$ 2,407	$ (153)

Equity Securities Measurement A

Equity Securities Measurement Alternative Cumulative Gains (Losses) (Details) - Nonmarketable equity securities [Member] - Measurement alternative [Member] - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Measurement Alternative Cumulative Gains (Losses)
Cumulative gross unrealized gains due to observable price changes	$ 4,577	$ 2,356
Cumulative gross unrealized losses due to observable price changes	(25)	(25)
Cumulative impairment write-downs	$ (1,008)	$ (969)

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Components of Other Assets [Line Items]
Corporate/bank-owned life insurance	$ 20,488	$ 20,380
Accounts receivable	24,372	38,116
Customer relationship and other amortized intangibles	1,579	1,640
Residential real estate foreclosed assets	49	73
Other foreclosed assets	80	86
Operating lease assets (lessor)	6,773	7,391
Operating lease ROU assets (lessee)	4,053	4,306
Due from customers on acceptances	144	268
Other	12,135	11,768
Total other assets	72,453	87,337
Customer relationship and other amortized intangibles [Member]
Components of Other Assets [Line Items]
Customer relationship and other amortized intangibles	287	328
AFS And HTM debt securities [Member]
Components of Other Assets [Line Items]
Interest receivable	1,366	1,368
Loans [Member]
Components of Other Assets [Line Items]
Interest receivable	2,224	2,838
Trading and other [Member]
Components of Other Assets [Line Items]
Interest receivable	$ 482	$ 415

Securitizations and Variable _3

Securitizations and Variable Interest Entities, Transfers with Continuing Involvement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Excluding resecuritization [Member] | Fair value, inputs, level 2 [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Securities recognized, trading	$ 11,200	$ 9,400	$ 18,000	$ 17,100
Excluding resecuritization [Member] | Residential mortgage [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Asset balances sold	45,903	43,602	86,489	81,987
Proceeds from transfer	46,230	43,605	86,921	82,025
Net gains (losses) on sale	327	3	432	38
Excluding resecuritization [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Servicing rights recognized	487	443	894	889
Excluding resecuritization [Member] | Residential mortgage [Member] | Fair value, inputs, level 2 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities recognized	6,171	590	16,394	590
Excluding resecuritization [Member] | Residential mortgage [Member] | Collateralized financing receivable [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Loans recognized	0	0	926	0
Excluding resecuritization [Member] | Commercial mortgage [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Asset balances sold	5,173	2,505	8,364	5,233
Proceeds from transfer	5,227	2,569	8,509	5,366
Net gains (losses) on sale	54	64	145	133
Excluding resecuritization [Member] | Commercial mortgage [Member] | Fair value, inputs, level 3 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Servicing rights recognized	24	48	71	82
Excluding resecuritization [Member] | Commercial mortgage [Member] | Fair value, inputs, level 2 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities recognized	39	12	68	74
Excluding resecuritization [Member] | Commercial mortgage [Member] | Collateralized financing receivable [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Loans recognized	0	0	0	0
Nonconforming mortgage loan securitizations [Member] | Excluding resecuritization [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Cash flows from other interests held	3,000	44	3,100	117
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Maximum exposure to loss	27,745		27,745		$ 19,606
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Maximum exposure to loss	3,996		3,996		3,372
VIEs that we do not consolidate [Member] | Nonconforming mortgage loan securitizations [Member] | Excluding resecuritization [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Maximum exposure to loss	3,095		3,095		2,944
VIEs that we do not consolidate [Member] | Nonconforming mortgage loan securitizations [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Maximum exposure to loss	31		31		34
VIEs that we do not consolidate [Member] | Conforming mortgage loan securitization [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Repurchases of assets/loss reimbursements	1,000	$ 3,600	2,900	$ 5,100
Carrying value of delinquent loans eligible for repurchase	128		128		176
Principal amount that would be payable to securitization vehicles	128		128		176
VIEs that we do not consolidate [Member] | Conforming mortgage loan securitization [Member] | Debt and other liabilities [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Liability for mortgage repurchase reserves amount, fair value	201		201		221
VIEs that we do not consolidate [Member] | Conforming mortgage loan securitization [Member] | Debt, guarantees, and other commitments [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Maximum exposure to loss	$ 13,400		$ 13,400		$ 13,700

Securitizations and Variable _4

Securitizations and Variable Interest Entities, Residential Mortgage Servicing Rights (Details) - Residential mortgage servicing rights [Member] - $ / loan	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Prepayment speed	13.40%	15.00%	13.80%	14.00%
Discount rate	6.10%	7.00%	6.00%	6.80%
Cost to service ($ per loan)	91	97	87	94

Securitizations and Variable _5

Securitizations and Variable Interest Entities, Sale of Student Loan Portfolio (Details) - Student loan [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Variable Interest Entity [Line Items]
Asset balances sold	$ 3,900	$ 9,500
Proceeds from transfer	4,000	9,800
Net gains (losses) on sale	147	355
Collateralized financing receivable [Member]
Variable Interest Entity [Line Items]
Loans recognized	$ 1,600	$ 3,800

Securitizations and Variable _6

Securitizations and Variable Interest Entities, Resecuritization Activities (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021		Jun. 30, 2020	Jun. 30, 2021		Jun. 30, 2020	Dec. 31, 2020
Variable Interest Entity [Line Items]
Assets	$ 1,945,996	[1]	$ 1,967,048	$ 1,945,996	[1]	$ 1,967,048	$ 1,952,911	[1]
Resecuritization [Member] | VIEs that we do not consolidate [Member]
Variable Interest Entity [Line Items]
Asset balances sold	7,873		19,982	25,302		29,454
Assets, nonconsolidated VIE	125,543			125,543			130,446
Resecuritization [Member] | VIEs that we do not consolidate [Member] | Carrying value [Member] | Securities [Member]
Variable Interest Entity [Line Items]
Assets	1,137			1,137			$ 1,461
Resecuritization [Member] | VIEs that we do not consolidate [Member] | Fair value, inputs, level 2 [Member]
Variable Interest Entity [Line Items]
Securities recognized	$ (99)		$ 153	$ 915		$ 815
[1]	Our consolidated assets at June 30, 2021, and December 31, 2020, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $518 million and $967 million; Loans, $4.1 billion and $10.9 billion; All other assets, $334 million and $310 million; and Total assets, $4.9 billion and $12.1 billion, respectively.

Securitizations and Variable _7

Securitizations and Variable Interest Entities, Off-Balance Sheet Loans Sold or Securitized (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	$ 855,402		$ 933,020
Delinquent loans and foreclosed assets	23,232		32,179
Net charge-offs	134	$ 142
Government insured or guaranteed [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	784,300		864,800
Securitizations and Variable Interest Entities Textual [Abstract]
Delinquent loans	19,800		28,500
Foreclosed assets	124		152
Commercial mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	116,704		114,134
Delinquent loans and foreclosed assets	2,363		2,217
Net charge-offs	122	83
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	203		394
Residential mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	738,698		818,886
Delinquent loans and foreclosed assets	20,869		29,962
Net charge-offs	12	$ 59
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	$ 163		$ 204

Securitizations and Variable _8

Securitizations and Variable Interest Entities, Unconsolidated VIEs (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020		Jun. 30, 2020
Variable Interest Entity [Line Items]
Loans	$ 852,300	$ 887,637		$ 935,155
Equity securities	64,547	60,008	[1]
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities	82,727	75,095
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	186,988	170,833
Maximum exposure to loss	27,745	19,606
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Nonconforming mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	134,023	127,717
Maximum exposure to loss	3,095	2,944
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	41,058	41,125
Maximum exposure to loss	16,346	16,230
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	5,366	0
Maximum exposure to loss	6,077	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	6,541	1,991
Maximum exposure to loss	2,227	432
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	9,120	1,849
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member] | Nonconforming mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	1,875	1,760
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	5,357	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	1,888	89
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Debt securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	2,401	2,303
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Equity securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	11,505	11,413
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Nonconforming mortgage loan securitizations [Member] | Debt securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	2,401	2,303
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Nonconforming mortgage loan securitizations [Member] | Equity securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Tax credit structures [Member] | Debt securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Tax credit structures [Member] | Equity securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	11,448	11,362
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Commercial real estate loans [Member] | Debt securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Commercial real estate loans [Member] | Equity securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Other [Member] | Debt securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Securities [Member] | Other [Member] | Equity securities [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	57	51
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | All other assets [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	723	669
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | All other assets [Member] | Nonconforming mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	663	607
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | All other assets [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | All other assets [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	8	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | All other assets [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	52	62
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	3,996	3,372
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member] | Nonconforming mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	31	34
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	3,023	3,108
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	712	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Debt, guarantees, and other commitments [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	230	230
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member]
Variable Interest Entity [Line Items]
Loans	9,120	1,849
Debt securities	2,401	2,303
Equity securities	11,505	11,413
All other assets	723	668
Debt and other liabilities	4,219	4,203
Net assets	19,530	12,030
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities	317	310
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member] | Nonconforming mortgage loan securitizations [Member]
Variable Interest Entity [Line Items]
Loans	0	0
Debt securities	2,401	2,303
Equity securities	0	0
All other assets	663	606
Debt and other liabilities	0	0
Net assets	3,064	2,909
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Loans	1,875	1,760
Debt securities	0	0
Equity securities	11,448	11,362
All other assets	0	0
Debt and other liabilities	4,218	4,202
Net assets	9,105	8,920
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Loans	5,357	0
Debt securities	0	0
Equity securities	0	0
All other assets	8	0
Debt and other liabilities	0	0
Net assets	5,365	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member] | Other [Member]
Variable Interest Entity [Line Items]
Loans	1,888	89
Debt securities	0	0
Equity securities	57	51
All other assets	52	62
Debt and other liabilities	1	1
Net assets	$ 1,996	$ 201
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Securitizations and Variable _9

Securitizations and Variable Interest Entities, Transactions with Consolidated VIEs (Details) - USD ($) $ in Millions	Jun. 30, 2021		Dec. 31, 2020		Jun. 30, 2020
Variable Interest Entity [Line Items]
Assets	$ 1,945,996	[1]	$ 1,952,911	[1]	$ 1,967,048
Loans	852,300		887,637		$ 935,155
Long-term Debt	(179,656)		(212,950)
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities	82,727		75,095
Carrying value [Member]
Variable Interest Entity [Line Items]
Long-term Debt	(179,625)		(212,922)
VIEs that we consolidate [Member]
Variable Interest Entity [Line Items]
Assets	8,119		13,983
VIEs that we consolidate [Member] | Commercial and industrial loans and leases [Member]
Variable Interest Entity [Line Items]
Assets	6,981		6,987
VIEs that we consolidate [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Assets	0		5,369
VIEs that we consolidate [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets	1,138		1,627
VIEs that we consolidate [Member] | Carrying value [Member]
Variable Interest Entity [Line Items]
Assets	4,927		12,146
Loans	4,075		10,869
Debt securities	518		967
All other assets	334		310
Long-term Debt	(178)		(203)
All other liabilities	(587)		(1,100)
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities	117		269
VIEs that we consolidate [Member] | Carrying value [Member] | Commercial and industrial loans and leases [Member]
Variable Interest Entity [Line Items]
Loans	3,623		5,005
Debt securities	0		0
All other assets	238		223
Long-term Debt	0		0
All other liabilities	(183)		(200)
VIEs that we consolidate [Member] | Carrying value [Member] | Commercial real estate loans [Member]
Variable Interest Entity [Line Items]
Loans	0		5,357
Debt securities	0		0
All other assets	0		12
Long-term Debt	0		0
All other liabilities	0		0
VIEs that we consolidate [Member] | Carrying value [Member] | Other [Member]
Variable Interest Entity [Line Items]
Loans	452		507
Debt securities	518		967
All other assets	96		75
Long-term Debt	(178)		(203)
All other liabilities	$ (404)		$ (900)
[1]	Our consolidated assets at June 30, 2021, and December 31, 2020, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $518 million and $967 million; Loans, $4.1 billion and $10.9 billion; All other assets, $334 million and $310 million; and Total assets, $4.9 billion and $12.1 billion, respectively.

Securitizations and Variable_10

Securitizations and Variable Interest Entities, Other Transactions (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Trust preferred securities [Member]
Variable Interest Entity [Line Items]
Trust preferred securities exchanged for junior debt	$ 332
VIEs that we do not consolidate [Member] | Junior subordinated debt [Member]
Variable Interest Entity [Line Items]
Junior subordinated notes	$ 381	$ 704

Mortgage Banking Activities, An

Mortgage Banking Activities, Analysis of Changes in Fair Value MSRs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Changes in MSRs measured at fair value
Fair value, beginning of period			$ 6,125
Changes in fair value:
Net changes in valuation inputs or assumptions	$ 809	$ 1,131	(782)	$ 4,388
Changes due to collection/realization of expected cash flows	488	637	1,073	1,201
Total changes in fair value	(1,297)	(1,768)	(291)	(5,589)
Fair value, end of period	6,717		6,717
Commercial mortgage servicing [Member]
Mortgage Banking Activities Textual [Abstract]
Mortgage servicing rights	1,300	1,400	1,300	1,400
Servicing asset at amortized cost, fair value	1,500	1,400	1,500	1,400
Residential mortgage servicing rights [Member]
Changes in MSRs measured at fair value
Fair value, beginning of period	7,536	8,126	6,125	11,517
Servicing from securitizations or asset transfers	485	462	891	923
Sales and other	(7)	(1)	(8)	(32)
Net additions	478	461	883	891
Changes in fair value:
Net changes in valuation inputs or assumptions	(809)	(1,131)	782	(4,388)
Changes due to collection/realization of expected cash flows	(488)	(637)	(1,073)	(1,201)
Total changes in fair value	(1,297)	(1,768)	(291)	(5,589)
Fair value, end of period	6,717	6,819	6,717	6,819
Residential mortgage servicing rights [Member] | Mortgage interest rates [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	(529)	(600)	1,101	(3,622)
Residential mortgage servicing rights [Member] | Servicing and foreclosure costs [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	0	(349)	9	(422)
Residential mortgage servicing rights [Member] | Discount rates [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	160	0	207	27
Residential mortgage servicing rights [Member] | Prepayment estimates and other [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	$ (440)	$ (182)	$ (535)	$ (371)

Mortgage Banking Activities, Ec

Mortgage Banking Activities, Economic Assumptions and Sensitivity of Residential MSRs (Details) - Residential mortgage servicing rights [Member] $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)$ / loan	Dec. 31, 2020USD ($)$ / loan
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	$ 6,717	$ 6,125
Expected weighted-average life (in years)	4 years 2 months 12 days	3 years 8 months 12 days
Assumption For Fair Value Of Assets Or Liabilities That Relate To Transferor's Continuing Involvement, Key Economic Assumptions [Abstract]
Prepayment speed assumption	17.20%	19.90%
Impact on fair value from 10% adverse change	$ 417	$ 434
Impact on fair value from 25% adverse change	$ 967	$ 1,002
Discount rate assumption	5.40%	5.80%
Impact on fair value from 100 basis point increase	$ 274	$ 229
Impact on fair value from 200 basis point increase	$ 525	$ 440
Cost to service assumption ($ per loan) | $ / loan	111	130
Impact on fair value from 10% adverse change	$ 171	$ 181
Impact on fair value from 25% adverse change	$ 427	$ 454

Mortgage Banking Activities, Ma

Mortgage Banking Activities, Managed Servicing Portfolio (Details) - USD ($) $ in Billions	Jun. 30, 2021	Dec. 31, 2020
Components of Managed Servicing Portfolio [Abstract]
Total managed servicing portfolio	$ 1,762	$ 1,888
Total serviced for others, excluding subserviced for others	$ 1,344	$ 1,431
MSRs as a percentage of loans serviced for others	0.60%	0.52%
Weighted average note rate (mortgage loans serviced for others)	0.0393	0.0403
Mortgage Banking Activities Textual [Abstract]
Servicer advances on mortgage loans	$ 3.4	$ 3.4
Residential mortgage servicing rights [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	771	859
Owned loans serviced	284	323
Total managed servicing portfolio	1,055	1,182
Commercial mortgage servicing [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	584	583
Owned loans serviced	123	123
Total managed servicing portfolio	$ 707	$ 706

Mortgage Banking Activities, Mo

Mortgage Banking Activities, Mortgage Banking Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Servicing Asset at Amortized Cost [Line Items]
Contractually specified servicing fees, late charges and ancillary fees	$ 692	$ 749	$ 1,416	$ 1,614
Unreimbursed direct servicing costs	(90)	(105)	(214)	(212)
Servicing fees	602	644	1,202	1,402
Amortization	(33)	(100)	(98)	(166)
Changes due to collection/realization of expected cash flows	(488)	(637)	(1,073)	(1,201)
Net servicing fees	81	(93)	31	35
Changes in fair value of MSRs due to valuation inputs or assumptions	(809)	(1,131)	782	(4,388)
Net derivative gains (losses) from economic hedges	707	535	(933)	3,935
Market-related valuation changes to MSRs, net of hedge results	(102)	(596)	(151)	(453)
Total servicing income, net	(21)	(689)	(120)	(418)
Net gains on mortgage loan originations/sales	1,357	1,006	2,782	1,114
Total mortgage banking noninterest income	1,336	317	2,662	696
Total changes in fair value of MSRs carried at fair value	(1,297)	(1,768)	(291)	(5,589)
Mortgage Banking Activities Textual [Abstract]
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	(420)	(393)	845	(1,300)
Commercial mortgage servicing [Member] | Amortized [Member]
Mortgage Banking Activities Textual [Abstract]
MSR impairment	$ (37)	$ 30	$ (37)	$ 30

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Amortized intangible assets:
Gross carrying value	$ 5,569	$ 5,491
Accumulated amortization	(3,990)	(3,851)
Net carrying value	1,579	1,640
Unamortized intangible assets:
Mortgage servicing rights, carried at fair value	6,717	6,125
Goodwill	26,194	26,392
Trademark	14	14
Amortized [Member] | Commercial mortgage servicing [Member]
Finite-Lived Intangible Assets [Line Items]
MSR Valuation allowance	5	37
MSRs [Member]
Amortized intangible assets:
Gross carrying value	4,690	4,612
Accumulated amortization	(3,398)	(3,300)
Net carrying value	1,292	1,312
Customer relationship and other intangibles [Member]
Amortized intangible assets:
Gross carrying value	879	879
Accumulated amortization	(592)	(551)
Net carrying value	$ 287	$ 328

Intangible Assets, Amortization

Intangible Assets, Amortization Expense (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021USD ($)
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Six months ended June 30, 2021 (actual)	$ 139
Estimate for the remainder of 2021	167
Estimate for year ended December 31,
2022	300
2023	262
2024	225
2025	191
2026	149
MSRs [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Six months ended June 30, 2021 (actual)	98
Estimate for the remainder of 2021	127
Estimate for year ended December 31,
2022	232
2023	203
2024	177
2025	152
2026	117
Customer relationship and other intangibles [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Six months ended June 30, 2021 (actual)	41
Estimate for the remainder of 2021	40
Estimate for year ended December 31,
2022	68
2023	59
2024	48
2025	39
2026	$ 32

Intangible Assets, Allocation o

Intangible Assets, Allocation of Goodwill to Operating Segments (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 26,392
Divestitures	(201)
Foreign currency translation	3
Transfers of goodwill	0
Goodwill, ending balance	26,194
Corporate [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	305
Divestitures	(201)
Foreign currency translation	0
Transfers of goodwill	1,012
Goodwill, ending balance	1,116
Consumer Banking and Lending [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	16,418
Divestitures	0
Foreign currency translation	0
Transfers of goodwill	0
Goodwill, ending balance	16,418
Commercial Banking [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	3,018
Divestitures	0
Foreign currency translation	3
Transfers of goodwill	(80)
Goodwill, ending balance	2,941
Corporate and Investment Banking [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	5,375
Divestitures	0
Foreign currency translation	0
Transfers of goodwill	0
Goodwill, ending balance	5,375
Wealth and Investment Management [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	1,276
Divestitures	0
Foreign currency translation	0
Transfers of goodwill	(932)
Goodwill, ending balance	$ 344

Guarantees - Carrying Value and

Guarantees - Carrying Value and Maximum Exposure to Loss (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2021	Dec. 31, 2020
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		$ (375)	$ (331)
Maximum exposure to loss, Expires in one year or less		28,227	27,879
Maximum exposure to loss, Expires after one year through three years		14,489	16,500
Maximum exposure to loss, Expires after three years through five years		6,028	5,188
Maximum exposure to loss, Expires after five years		15,363	17,177
Maximum exposure to loss		64,107	66,744
Card transaction volume		$ 790,200
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]	$ 1,752,869	1,767,199
Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		33,465	32,946
Written options [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		(548)	(538)
Maximum exposure to loss, Expires in one year or less		12,943	12,735
Maximum exposure to loss, Expires after one year through three years		6,278	7,972
Maximum exposure to loss, Expires after three years through five years		723	889
Maximum exposure to loss, Expires after five years		58	58
Maximum exposure to loss		20,002	21,654
Written options [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		13,666	13,394
Standby letters of credit [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		132	156
Maximum exposure to loss, Expires in one year or less		12,639	11,977
Maximum exposure to loss, Expires after one year through three years		4,838	4,962
Maximum exposure to loss, Expires after three years through five years		1,927	1,897
Maximum exposure to loss, Expires after five years		457	433
Maximum exposure to loss		19,861	19,269
Standby letters of credit [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		6,873	7,528
Direct pay letters of credit [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		10	18
Maximum exposure to loss, Expires in one year or less		1,927	2,256
Maximum exposure to loss, Expires after one year through three years		2,544	2,746
Maximum exposure to loss, Expires after three years through five years		368	531
Maximum exposure to loss, Expires after five years		43	39
Maximum exposure to loss		4,882	5,572
Direct pay letters of credit [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		1,140	1,102
Loans and LHFS sold with recourse [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		30	33
Maximum exposure to loss, Expires in one year or less		89	177
Maximum exposure to loss, Expires after one year through three years		826	819
Maximum exposure to loss, Expires after three years through five years		3,010	1,870
Maximum exposure to loss, Expires after five years		9,323	9,723
Maximum exposure to loss		13,248	12,589
Loans and LHFS sold with recourse [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		11,216	10,332
Exchange and clearing house guarantees [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		0	0
Maximum exposure to loss, Expires in one year or less		0	0
Maximum exposure to loss, Expires after one year through three years		0	0
Maximum exposure to loss, Expires after three years through five years		0	0
Maximum exposure to loss, Expires after five years		5,243	5,510
Maximum exposure to loss		5,243	5,510
Exchange and clearing house guarantees [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		0	0
Other guarantees and indemnifications [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		1	0
Maximum exposure to loss, Expires in one year or less		629	734
Maximum exposure to loss, Expires after one year through three years		3	1
Maximum exposure to loss, Expires after three years through five years		0	1
Maximum exposure to loss, Expires after five years		239	1,414
Maximum exposure to loss		871	2,150
Other guarantees and indemnifications [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		570	590
Third party clearing indemnifications [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		210	1,400
Collateral provided to third-party clearing agents		2,100	1,200
Other commitments and guarantees [Member] | Wells Fargo Finance, LLC [Member]
Guarantor Obligations [Line Items]
Liabilities		$ 1,600	$ 2,300
[1]	Our consolidated liabilities at June 30, 2021, and December 31, 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $178 million and $203 million; All other liabilities, $587 million and $900 million; and Total liabilities, $765 million and $1.1 billion, respectively.

Other Commitments (Details)

Other Commitments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Resale agreements, unfunded commitments	$ 12,900	$ 12,000
Purchase commitment [Member] | Debt securities [Member]
Other Commitments [Line Items]
Other commitment	18	18
Purchase commitment [Member] | Equity securities [Member]
Other Commitments [Line Items]
Other commitment	$ 3,200	$ 3,200

Pledge Assets (Details)

Pledge Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021		Dec. 31, 2020		Jun. 30, 2020
Related to trading activities:
Equity securities	$ 23,701		$ 23,032
Total pledged assets related to trading activities	132,610		123,608
Related to VIEs:
Assets	1,945,996	[1]	1,952,911	[1]	$ 1,967,048
Loans eligible for repurchase from GNMA securitizations	130		179
Total pledged assets	441,403		496,161
VIEs that we consolidate [Member]
Related to VIEs:
Assets	8,119		13,983
Carrying value [Member] | VIEs that we consolidate [Member]
Related to VIEs:
Assets	4,927		12,146
Carrying value [Member] | Total VIEs and Transfers that we account for as secured borrowings [Member]
Related to VIEs:
Total pledged assets	5,057		12,325
Related to non-trading activities [Member]
Related to non-trading activities:
Loans	308,551		344,220
Deb securities:
Available-for-sale	59,512		57,289
Held-to-maturity	11,552		17,290
Other financial assets	531		230
Related to VIEs:
Total pledged assets	380,146		419,029
Related to trading activities [Member]
Related to trading activities:
Trading debt securities and other	18,362		19,572
Equity securities	704		470
Total pledged assets related to trading activities	56,200		64,807
Related to trading activities [Member] | Repledged third-party owned debt and equity securities [Member]
Related to trading activities:
Total pledged assets related to trading activities	$ 37,134		$ 44,765
[1]	Our consolidated assets at June 30, 2021, and December 31, 2020, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $518 million and $967 million; Loans, $4.1 billion and $10.9 billion; All other assets, $334 million and $310 million; and Total assets, $4.9 billion and $12.1 billion, respectively.

Pledged Assets, Offsetting - Se

Pledged Assets, Offsetting - Securities Financing Activities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	$ 87,182	$ 80,933
Collateral received with the right to sell or repledge	118,900	108,500
Resale, Securities Borrowing and Similar Arrangements
Gross amounts recognized	101,027	92,446
Gross amounts offset in consolidated balance sheet	(13,845)	(11,513)
Net amounts in consolidated balance sheet	87,182	80,933
Collateral not recognized in consolidated balance sheet	(86,453)	(80,158)
Net amount	729	775
Repurchase and securities lending agreements
Gross amounts recognized	47,281	57,622
Gross amounts offset in consolidated balance sheet	(13,844)	(11,513)
Net amounts in consolidated balance sheet	33,437	46,109
Collateral pledged but not netted in consolidated balance sheet	(33,177)	(45,819)
Net amount	260	290
Collateral sold or repledged	34,500	36,100
Collateral pledged, fair value	48,500	59,200
Fed funds sold and securities purchased under resale agreements [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	70,100	65,600
Resale, Securities Borrowing and Similar Arrangements
Net amounts in consolidated balance sheet	70,100	65,600
Loans [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	17,100	15,300
Resale, Securities Borrowing and Similar Arrangements
Net amounts in consolidated balance sheet	$ 17,100	$ 15,300

Pledged Assets, Collateral Type

Pledged Assets, Collateral Type and Contractual Maturities of Gross Obligations (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 41,627	$ 52,182
Securities lending arrangements	5,654	5,440
Total repurchases and securities lending	47,281	57,622
Overnight/Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	28,584	36,946
Securities lending arrangements	4,853	4,690
Total repurchases and securities lending	33,437	41,636
Up to 30 days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	3,093	5,251
Securities lending arrangements	200	400
Total repurchases and securities lending	3,293	5,651
30-90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	4,765	5,100
Securities lending arrangements	601	350
Total repurchases and securities lending	5,366	5,450
Over 90 days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	5,185	4,885
Securities lending arrangements	0	0
Total repurchases and securities lending	5,185	4,885
Securities of U.S. Treasury and federal agencies [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	19,730	22,922
Securities lending arrangements	42	64
Securities of U.S. states and political subdivisions [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	24	4
Federal agency mortgage-backed securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	8,029	15,353
Securities lending arrangements	31	23
Non-agency mortgage-backed securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	860	1,069
Corporate debt securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	10,047	9,944
Securities lending arrangements	45	79
Asset-backed securities index [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,262	1,054
Equity securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	892	1,500
Securities lending arrangements	5,422	5,189
Other [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	783	336
Securities lending arrangements	$ 114	$ 85

Legal Actions (Details)

Legal Actions (Details) $ in Millions	Dec. 31, 2020legal_action	Feb. 21, 2020USD ($)	Nov. 30, 2016USD ($)	Jul. 13, 2012USD ($)	Jun. 30, 2021USD ($)legal_action	Dec. 31, 2020USD ($)	Aug. 31, 2015legal_action	Jul. 28, 2021USD ($)	Nov. 17, 2016legal_action
Legal Actions (Textual) [Abstract]
Loss Contingency, Claims Settled, Number | legal_action	2
Liability for Contingent Litigation Losses [Member]
Legal Actions (Textual) [Abstract]
Range of possible loss, portion not accrued					$ 2,800
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
Retail Sales Practices, CPI and GAP, and Mortgage interest rate lock matters [Member]
Legal Actions (Textual) [Abstract]
Civil Money Penalty					$ 1,000
Automobile Lending Matters [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Pending Claims, Number | legal_action					1
Loss Contingency, Estimate of Possible Loss					$ 45
Interchange Litigation [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Estimate of Possible Loss				$ 6,600
Litigation Settlement, Additional Funding			$ 900
Distribution to class merchants (percent)				0.10%
Distribution period to class merchants				8 months
Litigation Settlement, Expense			6,200
Litigation Settlement, Funds Remaining from 2012			5,300
Litigation Settlement, Additional Funding Allocated to WFC			$ 94.5
Mortgage Lending Matters - Hernandez V Wells Fargo [Member]
Legal Actions (Textual) [Abstract]
Litigation Settlement, Additional Funding					$ 22
Loss Contingency Accrual, Payments						$ 18.5
Mortgage Lending Matters - Ryder case [Member] | Subsequent event [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Estimate of Possible Loss								$ 12
Nomura/Natixis [Member]
Legal Actions (Textual) [Abstract]
Number Of Third Party Complaints | legal_action							7
Retail Sales Practices Matters, Department Of Justice (DOJ) [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Settlement Agreement, Date		February 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		February 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]
Loss Contingency, Damages Awarded, Value		$ 3,000
Seminole Tribe - Administration of a minor’s trust [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Pending Claims, Number | legal_action					3

Derivatives, Notional or Contra

Derivatives, Notional or Contractual Amounts and Fair Values of Derivatives (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives	$ 61,027	$ 65,682
Fair value asset derivatives, netting	(35,612)	(39,836)
Net amounts in consolidated balance sheet, assets	25,415	25,846
Fair value liability derivatives	49,653	58,065
Fair value liability derivatives, netting	(35,102)	(41,556)
Net amounts in consolidated balance sheet, liabilities	14,551	16,509
Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives, netting	(16,711)	(21,968)
Net amounts in consolidated balance sheet, assets	10,036	14,095
Fair value liability derivatives, netting	(16,453)	(21,934)
Net amounts in consolidated balance sheet, liabilities	3,022	4,368
Commodity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives, netting	(1,481)	(940)
Net amounts in consolidated balance sheet, assets	5,753	1,096
Fair value liability derivatives, netting	(1,086)	(819)
Net amounts in consolidated balance sheet, liabilities	1,223	724
Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives, netting	(11,488)	(10,968)
Net amounts in consolidated balance sheet, assets	7,791	7,917
Fair value liability derivatives, netting	(12,956)	(12,283)
Net amounts in consolidated balance sheet, liabilities	8,562	9,723
Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives, netting	(5,892)	(5,887)
Net amounts in consolidated balance sheet, assets	1,800	2,716
Fair value liability derivatives, netting	(4,574)	(6,481)
Net amounts in consolidated balance sheet, liabilities	1,727	1,675
Credit contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives, netting	(40)	(73)
Net amounts in consolidated balance sheet, assets	35	22
Fair value liability derivatives, netting	(33)	(39)
Net amounts in consolidated balance sheet, liabilities	17	19
Designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives	3,571	4,593
Fair value liability derivatives	1,033	1,396
Designated as hedging instrument [Member] | Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	166,843	184,090
Fair value asset derivatives	2,428	3,212
Fair value liability derivatives	529	789
Designated as hedging instrument [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	39,001	47,331
Fair value asset derivatives	1,143	1,381
Fair value liability derivatives	504	607
Not designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives	57,456	61,089
Fair value liability derivatives	48,620	56,669
Economic hedges [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives	2,231	2,066
Fair value liability derivatives	1,845	2,349
Economic hedges [Member] | Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	231,356	261,159
Fair value asset derivatives	251	341
Fair value liability derivatives	161	344
Economic hedges [Member] | Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	27,740	25,997
Fair value asset derivatives	1,582	1,363
Fair value liability derivatives	392	490
Economic hedges [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	53,396	47,106
Fair value asset derivatives	372	331
Fair value liability derivatives	1,292	1,515
Economic hedges [Member] | Credit contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	72	73
Fair value asset derivatives	26	31
Fair value liability derivatives	0	0
Customer accommodation trading and other derivatives [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value asset derivatives	55,225	59,023
Fair value liability derivatives	46,775	54,320
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	9,256,224	7,947,941
Fair value asset derivatives	24,068	32,510
Fair value liability derivatives	18,785	25,169
Customer accommodation trading and other derivatives [Member] | Commodity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	76,612	65,790
Fair value asset derivatives	7,234	2,036
Fair value liability derivatives	2,309	1,543
Customer accommodation trading and other derivatives [Member] | Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	322,733	280,195
Fair value asset derivatives	17,697	17,522
Fair value liability derivatives	21,126	21,516
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	415,458	412,879
Fair value asset derivatives	6,177	6,891
Fair value liability derivatives	4,505	6,034
Customer accommodation trading and other derivatives [Member] | Credit contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	36,179	34,329
Fair value asset derivatives	49	64
Fair value liability derivatives	$ 50	$ 58

Derivatives, Gross Fair Values

Derivatives, Gross Fair Values of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Derivative Assets
Gross amounts recognized, assets	$ 61,027	$ 65,682
Gross amounts offset in consolidated balance sheet, assets	(35,612)	(39,836)
Net amounts in consolidated balance sheet, assets	25,415	25,846
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(1,489)	(2,157)
Net amounts, assets	23,926	23,689
Derivative Liabilities
Gross amounts recognized, liabilities	49,653	58,065
Gross amounts offset in consolidated balance sheet	(35,102)	(41,556)
Net amounts in consolidated balance sheet, liabilities	14,551	16,509
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), Liabilities	(2,716)	(3,588)
Net amounts, liabilities	11,835	12,921
Derivatives (Textual) [Abstract]
Derivative assets subject to enforceable master netting arrangements	52,900	54,600
Derivative liabilities subject to enforceable master netting arrangements	44,700	50,100
Derivative asset not subject to enforceable master netting arrangement	8,100	11,100
Derivative liabilities not subject to enforceable master netting arrangements	5,000	8,000
Cash collateral payables not offset against derivatives	2,600	1,800
Cash collateral receivables not offset against derivatives	828	984
Valuation adjustments for derivative assets	299	399
Valuation adjustments for derivative liabilities	145	201
Cash collateral netted against derivative assets	5,400	5,500
Cash collateral netted against derivative liabilities	5,100	7,500
Interest rate contracts [Member]
Derivative Assets
Gross amounts recognized, assets	26,747	36,063
Gross amounts offset in consolidated balance sheet, assets	(16,711)	(21,968)
Net amounts in consolidated balance sheet, assets	10,036	14,095
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(680)	(1,274)
Net amounts, assets	$ 9,356	$ 12,821
Percent exchanged in the over the counter market, assets	97.00%	96.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 19,475	$ 26,302
Gross amounts offset in consolidated balance sheet	(16,453)	(21,934)
Net amounts in consolidated balance sheet, liabilities	3,022	4,368
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), Liabilities	(1,524)	(2,219)
Net amounts, liabilities	$ 1,498	$ 2,149
Percent exchanged in the over the counter market, liabilities	96.00%	95.00%
Commodity contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 7,234	$ 2,036
Gross amounts offset in consolidated balance sheet, assets	(1,481)	(940)
Net amounts in consolidated balance sheet, assets	5,753	1,096
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(14)	(4)
Net amounts, assets	$ 5,739	$ 1,092
Percent exchanged in the over the counter market, assets	92.00%	84.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 2,309	$ 1,543
Gross amounts offset in consolidated balance sheet	(1,086)	(819)
Net amounts in consolidated balance sheet, liabilities	1,223	724
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), Liabilities	(17)	0
Net amounts, liabilities	$ 1,206	$ 724
Percent exchanged in the over the counter market, liabilities	50.00%	69.00%
Equity contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 19,279	$ 18,885
Gross amounts offset in consolidated balance sheet, assets	(11,488)	(10,968)
Net amounts in consolidated balance sheet, assets	7,791	7,917
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(766)	(737)
Net amounts, assets	$ 7,025	$ 7,180
Percent exchanged in the over the counter market, assets	69.00%	74.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 21,518	$ 22,006
Gross amounts offset in consolidated balance sheet	(12,956)	(12,283)
Net amounts in consolidated balance sheet, liabilities	8,562	9,723
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), Liabilities	(749)	(837)
Net amounts, liabilities	$ 7,813	$ 8,886
Percent exchanged in the over the counter market, liabilities	79.00%	78.00%
Foreign exchange contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 7,692	$ 8,603
Gross amounts offset in consolidated balance sheet, assets	(5,892)	(5,887)
Net amounts in consolidated balance sheet, assets	1,800	2,716
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(28)	(141)
Net amounts, assets	$ 1,772	$ 2,575
Percent exchanged in the over the counter market, assets	100.00%	100.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 6,301	$ 8,156
Gross amounts offset in consolidated balance sheet	(4,574)	(6,481)
Net amounts in consolidated balance sheet, liabilities	1,727	1,675
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), Liabilities	(423)	(529)
Net amounts, liabilities	$ 1,304	$ 1,146
Percent exchanged in the over the counter market, liabilities	100.00%	100.00%
Credit contracts [Member]
Derivative Assets
Gross amounts recognized, assets	$ 75	$ 95
Gross amounts offset in consolidated balance sheet, assets	(40)	(73)
Net amounts in consolidated balance sheet, assets	35	22
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), assets	(1)	(1)
Net amounts, assets	$ 34	$ 21
Percent exchanged in the over the counter market, assets	90.00%	90.00%
Derivative Liabilities
Gross amounts recognized, liabilities	$ 50	$ 58
Gross amounts offset in consolidated balance sheet	(33)	(39)
Net amounts in consolidated balance sheet, liabilities	17	19
Gross amounts not offset in consolidated balance sheet (Disclosure-only netting), Liabilities	(3)	(3)
Net amounts, liabilities	$ 14	$ 16
Percent exchanged in the over the counter market, liabilities	90.00%	91.00%

Derivatives, Gains (Losses) Rec

Derivatives, Gains (Losses) Recognized on Fair Value Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Line Items Presented in the Consolidated Statement of Income and Other Comprehensive Income [Abstract]
Debt securities	$ 2,199	$ 2,946		$ 4,511	$ 6,418
Deposits	(92)	(585)		(204)	(2,327)
Long-term debt	(712)	(1,237)		(1,738)	(2,477)
Other	692	912	[1]	1,674	2,213	[1]
Total recorded in OCI, Derivative gains (losses)	37	3		84	185
Derivatives (Textual) [Abstract]
Deferred net gains (losses) on derivatives in other comprehensive income				$ (76)
Maximum length of time hedged in cash flow hedge				9 years
Fair value hedging [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Recognized on derivatives, Total recorded in OCI	(14)	(57)		$ 11	87
Fair value hedging [Member] | Interest contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Recognized on derivatives, Total recorded in OCI	0	0		0	0
Fair value hedging [Member] | Foreign exchange contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Recognized on derivatives, Total recorded in OCI	(14)	(57)		11	87
Fair value hedging [Member] | Debt securities [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Total gains (losses) (pre-tax) on interest rate contracts	(68)	(40)		(71)	(94)
Fair value hedging [Member] | Debt securities [Member] | Interest contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	(68)	(93)		(135)	(139)
Recognized on derivatives	(468)	(21)		826	(1,892)
Recognized on hedged items	452	63		(806)	1,919
Total gains (losses) (pre-tax) on interest rate contracts	(84)	(51)		(115)	(112)
Fair value hedging [Member] | Debt securities [Member] | Foreign exchange contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	15	11		43	17
Recognized on derivatives	2	(1)		3	(2)
Recognized on hedged items	(1)	1		(2)	3
Total gains (losses) (pre-tax) on interest rate contracts	16	11		44	18
Fair value hedging [Member] | Deposits [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Total gains (losses) (pre-tax) on interest rate contracts	75	143		162	232
Fair value hedging [Member] | Deposits [Member] | Interest contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	74	152		165	222
Recognized on derivatives	(61)	(86)		(184)	444
Recognized on hedged items	62	77		181	(434)
Total gains (losses) (pre-tax) on interest rate contracts	75	143		162	232
Fair value hedging [Member] | Deposits [Member] | Foreign exchange contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	0	0		0	0
Recognized on derivatives	0	0		0	0
Recognized on hedged items	0	0		0	0
Total gains (losses) (pre-tax) on interest rate contracts	0	0		0	0
Fair value hedging [Member] | Long-term debt [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Total gains (losses) (pre-tax) on interest rate contracts	598	360		987	731
Fair value hedging [Member] | Long-term debt [Member] | Interest contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	541	428		1,091	602
Recognized on derivatives	2,453	549		(4,618)	10,324
Recognized on hedged items	(2,402)	(618)		4,542	(10,044)
Total gains (losses) (pre-tax) on interest rate contracts	592	359		1,015	882
Fair value hedging [Member] | Long-term debt [Member] | Foreign exchange contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	4	(46)		3	(131)
Recognized on derivatives	(42)	117		(269)	224
Recognized on hedged items	44	(70)		238	(244)
Total gains (losses) (pre-tax) on interest rate contracts	6	1		(28)	(151)
Fair value hedging [Member] | Other noninterest income [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Total gains (losses) (pre-tax) on interest rate contracts	(1)	25		(11)	4
Fair value hedging [Member] | Other noninterest income [Member] | Interest contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	0	0		0	0
Recognized on derivatives	0	0		0	0
Recognized on hedged items	0	0		0	0
Total gains (losses) (pre-tax) on interest rate contracts	0	0		0	0
Fair value hedging [Member] | Other noninterest income [Member] | Foreign exchange contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	0	0		0	0
Recognized on derivatives	202	709		509	(76)
Recognized on hedged items	(203)	(684)		(520)	80
Total gains (losses) (pre-tax) on interest rate contracts	(1)	25		(11)	4
Fair value hedging [Member] | Derivative gains (losses) [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Total gains (losses) (pre-tax) on interest rate contracts	604	488		1,067	873
Fair value hedging [Member] | Derivative gains (losses) [Member] | Interest contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	547	487		1,121	685
Recognized on derivatives	1,924	442		(3,976)	8,876
Recognized on hedged items	(1,888)	(478)		3,917	(8,559)
Total gains (losses) (pre-tax) on interest rate contracts	583	451		1,062	1,002
Fair value hedging [Member] | Derivative gains (losses) [Member] | Foreign exchange contracts [Member]
Total gains (losses) (pre-tax) recognized on fair value hedges
Amounts related to interest settlements on derivatives	19	(35)		46	(114)
Recognized on derivatives	162	825		243	146
Recognized on hedged items	(160)	(753)		(284)	(161)
Total gains (losses) (pre-tax) on interest rate contracts	$ 21	$ 37		$ 5	$ (129)
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Derivatives, Gains (Losses) R_2

Derivatives, Gains (Losses) Recognized on Cash Flow Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Line Items Presented in the Consolidated Statement of Income and Other Comprehensive Income [Abstract]
Loans	$ 7,095	$ 8,460	[1]	$ 14,296	$ 18,543	[1]
Long-term debt	(712)	(1,237)		(1,738)	(2,477)
Total recorded in OCI, Derivative gains (losses)	37	3		84	185
Cash flow hedging [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net (gains) losses to net income on cash flow hedges, before tax	40	55		93	113
Net unrealized gains (losses) (pre-tax) recognized in OCI	11	5		(20)	(15)
Total gains (losses) (pre-tax) recognized on cash flow hedges	51	60		73	98
Cash flow hedging [Member] | Interest rate contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net (gains) losses to net income on cash flow hedges, before tax	39	52		91	108
Net unrealized gains (losses) (pre-tax) recognized in OCI	10	0		(10)	0
Total gains (losses) (pre-tax) recognized on cash flow hedges	49	52		81	108
Cash flow hedging [Member] | Foreign exchange contracts [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Reclassification of net (gains) losses to net income on cash flow hedges, before tax	1	3		2	5
Net unrealized gains (losses) (pre-tax) recognized in OCI	1	5		(10)	(15)
Total gains (losses) (pre-tax) recognized on cash flow hedges	2	8		(8)	(10)
Cash flow hedging [Member] | Loans [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Total gains (losses) (pre-tax) on interest rate contracts	(39)	(53)		(91)	(109)
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	(39)	(53)		(91)	(109)
Total gains (losses) (pre-tax) on interest rate contracts	(39)	(53)		(91)	(109)
Cash flow hedging [Member] | Loans [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	0	0		0	0
Total gains (losses) (pre-tax) on interest rate contracts	0	0		0	0
Cash flow hedging [Member] | Long-term debt [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Total gains (losses) (pre-tax) on interest rate contracts	(1)	(2)		(2)	(4)
Cash flow hedging [Member] | Long-term debt [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		1			1
Total gains (losses) (pre-tax) on interest rate contracts	0	1		0	1
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	(1)	(3)		(2)	(5)
Total gains (losses) (pre-tax) on interest rate contracts	(1)	(3)		(2)	(5)
Cash flow hedging [Member] | Derivative gains (losses) [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Total gains (losses) (pre-tax) on interest rate contracts	(40)	(55)		(93)	(113)
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	(39)	(52)		(91)	(108)
Total gains (losses) (pre-tax) on interest rate contracts	(39)	(52)		(91)	(108)
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	(1)	(3)		(2)	(5)
Total gains (losses) (pre-tax) on interest rate contracts	$ (1)	$ (3)		$ (2)	$ (5)
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Derivatives, Fair Value Hedging

Derivatives, Fair Value Hedging Basis Adjustment (Details) - Fair value hedging [Member] - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Hedged items currently designated [Member] | Available-for-sale debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	$ 28,655	$ 29,538
Hedge accounting basis adjustment, assets	(35)	827
Hedged items currently designated [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	(14,206)	(22,384)
Hedge accounting basis adjustment, liabilities	(295)	(477)
Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	(148,673)	(156,907)
Hedge accounting basis adjustment, liabilities	(7,312)	(12,466)
Not designated as hedging instrument [Member] | Available-for-sale debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	16,792	17,091
Hedge accounting basis adjustment, assets	994	1,111
Not designated as hedging instrument [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	0	0
Hedge accounting basis adjustment, liabilities	0	0
Not designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	(5,248)	(14,468)
Hedge accounting basis adjustment, liabilities	2	31
Foreign exchange contracts [Member] | Hedged items currently designated [Member] | Available-for-sale debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	12,000	17,600
Foreign exchange contracts [Member] | Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	(2,800)	(4,700)
Re-designated as hedging instrument [Member] | Available-for-sale debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedge accounting basis adjustment, assets	188	205
Re-designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedge accounting basis adjustment, liabilities	$ 160	$ 130

Derivatives, Derivatives Not De

Derivatives, Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivatives (Textual) [Abstract]
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	$ 707	$ 535	$ (933)	$ 3,935
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	(420)	(393)	845	(1,300)
Not designated as hedging instrument [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(2,001)	(2,868)	(1,238)	4,214
Derivatives (Textual) [Abstract]
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	707	535	(933)	3,900
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]
Gain (loss) on derivatives not designated as hedging instruments	769	688	(137)	3,712
Not designated as hedging instrument [Member] | Net gains (losses) on trading and securities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(2,381)	(3,277)	(679)	64
Not designated as hedging instrument [Member] | Other [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(389)	(279)	(422)	438
Not designated as hedging instrument [Member] | Personnel expense [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(239)	(141)	(399)	(141)
Economic hedges [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(560)	(1,394)	(454)	2,940
Economic hedges [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	301	68	(94)	2,568
Economic hedges [Member] | Equity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(766)	(1,408)	(336)	(217)
Economic hedges [Member] | Foreign exchange contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(90)	(55)	(19)	572
Economic hedges [Member] | Credit contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(5)	1	(5)	17
Economic hedges [Member] | Mortgage banking [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	287	142	(88)	2,613
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]
Gain (loss) on derivatives not designated as hedging instruments	287	142	(88)	2,613
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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gains (losses) on trading and securities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(762)	(1,402)	(337)	(183)
Economic hedges [Member] | Net gains (losses) on trading and securities [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gains (losses) on trading and securities [Member] | Equity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(762)	(1,402)	(337)	(183)
Economic hedges [Member] | Net gains (losses) on trading and securities [Member] | Foreign exchange contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Net gains (losses) on trading and securities [Member] | Credit contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Other [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(85)	(134)	(29)	510
Economic hedges [Member] | Other [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	14	(74)	(6)	(45)
Economic hedges [Member] | Other [Member] | Equity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(4)	(6)	1	(34)
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]
Gain (loss) on derivatives not designated as hedging instruments	(90)	(55)	(19)	572
Economic hedges [Member] | Other [Member] | Credit contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(5)	1	(5)	17
Economic hedges [Member] | Personnel expense [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(239)	(141)	(399)	(141)
Economic hedges [Member] | Personnel expense [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Personnel expense [Member] | Equity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(239)	(141)	(399)	(141)
Economic hedges [Member] | Personnel expense [Member] | Foreign exchange contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Economic hedges [Member] | Personnel expense [Member] | Credit contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(1,441)	(1,474)	(784)	1,274
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]
Gain (loss) on derivatives not designated as hedging instruments	(112)	1,222	1,281	(688)
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]
Gain (loss) on derivatives not designated as hedging instruments	(36)	(224)	44	(112)
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]
Gain (loss) on derivatives not designated as hedging instruments	(1,226)	(2,493)	(2,478)	2,329
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]
Gain (loss) on derivatives not designated as hedging instruments	(24)	155	440	(402)
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]
Gain (loss) on derivatives not designated as hedging instruments	(43)	(134)	(71)	147
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]
Gain (loss) on derivatives not designated as hedging instruments	482	546	(49)	1,099
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]
Gain (loss) on derivatives not designated as hedging instruments	482	546	(49)	1,099
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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Net gains (losses) on trading and securities [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(1,619)	(1,875)	(342)	247
Customer accommodation trading and other derivatives [Member] | Net gains (losses) on trading and securities [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(594)	676	1,330	(1,787)
Customer accommodation trading and other derivatives [Member] | Net gains (losses) on trading and securities [Member] | Commodity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(36)	(224)	44	(112)
Customer accommodation trading and other derivatives [Member] | Net gains (losses) on trading and securities [Member] | Equity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(922)	(2,348)	(2,085)	2,401
Customer accommodation trading and other derivatives [Member] | Net gains (losses) on trading and securities [Member] | Foreign exchange contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(24)	155	440	(402)
Customer accommodation trading and other derivatives [Member] | Net gains (losses) on trading and securities [Member] | Credit contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	(43)	(134)	(71)	147
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]
Gain (loss) on derivatives not designated as hedging instruments	(304)	(145)	(393)	(72)
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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	(304)	(145)	(393)	(72)
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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	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]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Personnel expense [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Personnel expense [Member] | Interest contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Personnel expense [Member] | Commodity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Personnel expense [Member] | Equity contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Personnel expense [Member] | Foreign exchange contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	0	0	0	0
Customer accommodation trading and other derivatives [Member] | Personnel expense [Member] | Credit contracts [Member]
Net Gains Losses Recognized In Income Statement Related To Derivatives Not Designated As Hedging Instruments [Abstract]
Gain (loss) on derivatives not designated as hedging instruments	$ 0	$ 0	$ 0	$ 0

Derivatives, Sold and Purchased

Derivatives, Sold and Purchased Credit Derivatives (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	$ 8	$ 10
Fair value liability	31	39
Notional amount, Protection sold	13,124	12,085
Notional amount, Protection purchased with identical underlyings	4,364	3,599
Notional amount, Net protection sold	8,760	8,486
Notional amount, Other protection purchased	18,763	18,718
Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	8,226	8,067
Corporate bonds [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	5	7
Fair value liability	3	2
Notional amount, Protection sold	4,724	3,767
Notional amount, Protection purchased with identical underlyings	3,130	2,709
Notional amount, Net protection sold	1,594	1,058
Notional amount, Other protection purchased	3,582	3,012
Corporate bonds [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	1,236	971
Structured products [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	0	0
Fair value liability	4	5
Notional amount, Protection sold	16	20
Notional amount, Protection purchased with identical underlyings	12	19
Notional amount, Net protection sold	4	1
Notional amount, Other protection purchased	82	84
Structured products [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	16	20
Default swap index [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	1	0
Fair value liability	0	0
Notional amount, Protection sold	1,760	1,582
Notional amount, Protection purchased with identical underlyings	924	559
Notional amount, Net protection sold	836	1,023
Notional amount, Other protection purchased	3,765	3,925
Default swap index [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	698	731
Commercial mortgage-backed securities index [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	2	3
Fair value liability	15	21
Notional amount, Protection sold	283	297
Notional amount, Protection purchased with identical underlyings	258	272
Notional amount, Net protection sold	25	25
Notional amount, Other protection purchased	134	75
Commercial mortgage-backed securities index [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	29	42
Asset-backed securities index [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Fair value asset	0	0
Fair value liability	7	7
Notional amount, Protection sold	41	41
Notional amount, Protection purchased with identical underlyings	40	40
Notional amount, Net protection sold	1	1
Notional amount, Other protection purchased	1	1
Asset-backed securities index [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	2	4
Notional amount, Protection sold	6,300	6,378
Notional amount, Protection purchased with identical underlyings	0	0
Notional amount, Net protection sold	6,300	6,378
Notional amount, Other protection purchased	11,199	11,621
Other credit derivatives [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	$ 6,206	$ 6,262

Derivatives Derivatives, Credit

Derivatives Derivatives, Credit-Risk Contingent Feature Textuals (Details) - USD ($) $ in Billions	Jun. 30, 2021	Dec. 31, 2020
Derivatives [Abstract]
Net derivative liabilities with credit-risk contingent features	$ 10.4	$ 10.5
Collateral posted	9.4	9
Additional collateral to be posted upon a below investment grade credit rating	$ 1	$ 1.5

Fair Value, Assets and Liabilit

Fair Value, Assets and Liabilities, Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets:
Trading debt securities	$ 82,727	$ 75,095
Available-for-sale debt securities	189,897	220,392
Mortgage servicing rights	6,717	6,125
Gross derivative asset	61,027	65,682
Marketable equity securities	35,331	34,009
Equity securities	64,547	60,008	[1]
Liabilities:
Total derivative liabilities (gross)	(49,653)	(58,065)
Short-sale trading liabilities	(22,043)	(22,441)
Securities of U.S. Treasury and federal agencies [Member]
Assets:
Available-for-sale debt securities	35,905	22,159
Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	11,201	16,813
Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	19,499	19,406
Federal agencies [Member]
Assets:
Available-for-sale debt securities	96,534	139,070
Non-agency mortgage-backed securities [Member]
Assets:
Available-for-sale debt securities	4,378	3,729
Collateralized loan obligations [Member]
Assets:
Available-for-sale debt securities	12,407	9,018
Other debt securities [Member]
Assets:
Available-for-sale debt securities	9,973	10,197
Fair value, recurring [Member]
Assets:
Loans held for sale	18,894	18,806
Gross derivative asset	61,027	65,682
Total assets prior to derivative netting	394,445	419,955
Fair value assets, Derivative netting	(35,612)	(39,836)
Total assets after derivative netting	358,833	380,119
Liabilities:
Total derivative liabilities (gross)	(49,653)	(58,065)
Short-sale trading liabilities	(22,043)	(22,441)
Total liabilities prior to derivative netting	(71,696)	(80,506)
Fair value liabilities, Derivative netting	35,102	41,556
Total liabilities after derivative netting	(36,594)	(38,950)
Fair value, recurring [Member] | Residential mortgage [Member]
Assets:
Mortgage servicing rights	6,717	6,125
Fair value, recurring [Member] | Interest rate contracts [Member]
Assets:
Gross derivative asset	26,747	36,063
Liabilities:
Total derivative liabilities (gross)	(19,475)	(26,302)
Fair value, recurring [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	7,234	2,036
Liabilities:
Total derivative liabilities (gross)	(2,309)	(1,543)
Fair value, recurring [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	19,279	18,885
Liabilities:
Total derivative liabilities (gross)	(21,518)	(22,006)
Fair value, recurring [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	7,692	8,603
Liabilities:
Total derivative liabilities (gross)	(6,301)	(8,156)
Fair value, recurring [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	75	95
Liabilities:
Total derivative liabilities (gross)	(50)	(58)
Fair value, recurring [Member] | Debt securities [Member]
Assets:
Trading debt securities	82,727	75,095
Available-for-sale debt securities	189,897	220,392
Fair value, recurring [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities	31,704	35,257
Available-for-sale debt securities	35,905	22,159
Fair value, recurring [Member] | Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	11,201	16,813
Fair value, recurring [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	19,499	19,406
Fair value, recurring [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	12,073	10,709
Fair value, recurring [Member] | Federal agencies [Member]
Assets:
Trading debt securities	33,105	23,549
Available-for-sale debt securities	96,534	139,070
Fair value, recurring [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	1,297	1,051
Available-for-sale debt securities	4,378	3,729
Fair value, recurring [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	627	682
Available-for-sale debt securities	12,407	9,018
Fair value, recurring [Member] | Other debt securities [Member]
Assets:
Trading debt securities	3,921	3,847
Available-for-sale debt securities	9,973	10,197
Fair value, recurring [Member] | Equity securities [Member]
Assets:
Equity securities	35,183	33,855
Fair value, recurring [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	25,325	24,596
Fair value, recurring [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	9,858	9,259
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Assets:
Loans held for sale	0	0
Gross derivative asset	4,661	4,918
Total assets prior to derivative netting	95,238	83,180
Liabilities:
Total derivative liabilities (gross)	(4,136)	(4,897)
Short-sale trading liabilities	(15,579)	(15,292)
Total liabilities prior to derivative netting	(19,715)	(20,189)
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Residential mortgage [Member]
Assets:
Mortgage servicing rights	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest rate contracts [Member]
Assets:
Gross derivative asset	20	11
Liabilities:
Total derivative liabilities (gross)	(14)	(27)
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	0	0
Liabilities:
Total derivative liabilities (gross)	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	4,620	4,888
Liabilities:
Total derivative liabilities (gross)	(4,108)	(4,860)
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	21	19
Liabilities:
Total derivative liabilities (gross)	(14)	(10)
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	0	0
Liabilities:
Total derivative liabilities (gross)	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Debt securities [Member]
Assets:
Trading debt securities	29,497	32,060
Available-for-sale debt securities	35,942	22,197
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities	29,497	32,060
Available-for-sale debt securities	35,905	22,159
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Federal agencies [Member]
Assets:
Trading debt securities	0	0
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	0	0
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	0	0
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other debt securities [Member]
Assets:
Trading debt securities	0	0
Available-for-sale debt securities	37	38
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity securities [Member]
Assets:
Equity securities	25,138	24,005
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	25,138	23,995
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	0	10
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member]
Assets:
Loans held for sale	17,825	17,572
Gross derivative asset	53,972	58,589
Total assets prior to derivative netting	276,370	314,841
Liabilities:
Total derivative liabilities (gross)	(43,047)	(51,164)
Short-sale trading liabilities	(6,464)	(7,149)
Total liabilities prior to derivative netting	(49,511)	(58,313)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Residential mortgage [Member]
Assets:
Mortgage servicing rights	0	0
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Interest rate contracts [Member]
Assets:
Gross derivative asset	26,370	35,590
Liabilities:
Total derivative liabilities (gross)	(19,418)	(26,259)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	7,139	1,997
Liabilities:
Total derivative liabilities (gross)	(2,216)	(1,503)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	12,763	12,384
Liabilities:
Total derivative liabilities (gross)	(15,089)	(15,219)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	7,664	8,573
Liabilities:
Total derivative liabilities (gross)	(6,280)	(8,134)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	36	45
Liabilities:
Total derivative liabilities (gross)	(44)	(49)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Debt securities [Member]
Assets:
Trading debt securities	53,038	42,862
Available-for-sale debt securities	151,150	195,201
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities	2,207	3,197
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	11,201	16,813
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	19,377	19,182
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	12,062	10,696
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Federal agencies [Member]
Assets:
Trading debt securities	33,105	23,549
Available-for-sale debt securities	96,534	139,070
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	1,275	1,039
Available-for-sale debt securities	4,347	3,697
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	469	534
Available-for-sale debt securities	12,407	9,018
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Assets:
Trading debt securities	3,920	3,847
Available-for-sale debt securities	7,284	7,421
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Equity securities [Member]
Assets:
Equity securities	385	617
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	186	596
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	199	21
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member]
Assets:
Loans held for sale	1,069	1,234
Gross derivative asset	2,394	2,175
Total assets prior to derivative netting	22,837	21,934
Liabilities:
Total derivative liabilities (gross)	(2,470)	(2,004)
Short-sale trading liabilities	0	0
Total liabilities prior to derivative netting	(2,470)	(2,004)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Residential mortgage [Member]
Assets:
Mortgage servicing rights	6,717	6,125
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member]
Assets:
Gross derivative asset	357	462
Liabilities:
Total derivative liabilities (gross)	(43)	(16)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	95	39
Liabilities:
Total derivative liabilities (gross)	(93)	(40)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	1,896	1,613
Liabilities:
Total derivative liabilities (gross)	(2,321)	(1,927)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	7	11
Liabilities:
Total derivative liabilities (gross)	(7)	(12)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	39	50
Liabilities:
Total derivative liabilities (gross)	(6)	(9)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Debt securities [Member]
Assets:
Trading debt securities	192	173
Available-for-sale debt securities	2,805	2,994
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 debt securities	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	122	224
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	11	13
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Federal agencies [Member]
Assets:
Trading debt securities	0	0
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	22	12
Available-for-sale debt securities	31	32
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	158	148
Available-for-sale debt securities	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Other debt securities [Member]
Assets:
Trading debt securities	1	0
Available-for-sale debt securities	2,652	2,738
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity securities [Member]
Assets:
Equity securities	9,660	9,233
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	1	5
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	9,659	9,228
Fair value, recurring [Member] | Fair value measured at net asset value per share [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	$ 148	$ 154
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Fair Value, Assets and Liabil_2

Fair Value, Assets and Liabilities, Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Trading debt securities [Member]
Assets:
Balance, beginning of period	$ 192	$ 389	$ 173	$ 223
Net gains (losses)	4	33	20	(85)
Purchases	123	186	292	476
Sales	(129)	(346)	(302)	(439)
Settlements	(5)	(5)	(5)	(15)
Transfers into Level 3	15	15	22	115
Transfers out of Level 3	(8)	(49)	(8)	(52)
Balance, end of period	192	223	192	223
Net unrealized gains (losses) related to assets and liabilities held at period end	1	14	5	(69)
Available-for-sale debt securities [Member]
Assets:
Balance, beginning of period	3,142	2,412	2,994	1,565
Net gains (losses)	28	21	21	(121)
Purchases	9	5	24	31
Sales	0	(28)	0	(33)
Settlements	(120)	(100)	(188)	(148)
Transfers into Level 3	11	85	253	1,172
Transfers out of Level 3	(265)	(297)	(299)	(368)
Balance, end of period	2,805	2,098	2,805	2,098
Net unrealized gains (losses) related to assets and liabilities held at period end	41	8	16	(99)
Fair Value Disclosures, Textual [Abstract]
Total net gains (losses) included in other comprehensive income	22	16	36	(75)
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income	38	13	31	(40)
Loans held for sale [Member]
Assets:
Balance, beginning of period	1,166	3,176	1,234	1,214
Net gains (losses)	15	(41)	(4)	(104)
Purchases	131	94	260	960
Sales	(231)	(288)	(379)	(358)
Settlements	(107)	(64)	(217)	(162)
Transfers into Level 3	97	80	178	1,409
Transfers out of Level 3	(2)	(2,199)	(3)	(2,201)
Balance, end of period	1,069	758	1,069	758
Net unrealized gains (losses) related to assets and liabilities held at period end	9	(32)	(5)	(34)
Mortgage servicing rights [Member] | Residential mortgage [Member]
Assets:
Balance, beginning of period	7,536	8,126	6,125	11,517
Net gains (losses)	(1,297)	(1,768)	(291)	(5,589)
Purchases	485	462	891	923
Sales	(7)	(1)	(8)	(33)
Settlements	0	0	0	1
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Balance, end of period	6,717	6,819	6,717	6,819
Net unrealized gains (losses) related to assets and liabilities held at period end	(809)	(1,131)	782	(4,388)
Derivative [Member]
Assets and Liabilities:
Balance, beginning of period	(372)	899	171	(60)
Net gains (losses)	233	190	(449)	1,309
Purchases	2	2	2	8
Sales	(1)	(1)	(1)	(4)
Settlements	17	(531)	148	(671)
Transfers into Level 3	(10)	18	(37)	2
Transfers out of Level 3	55	1	90	(6)
Balance, end of period	(76)	578	(76)	578
Net unrealized gains (losses) related to assets and liabilities held at period end	21	(49)	(123)	455
Derivative [Member] | Interest rate contracts [Member]
Assets and Liabilities:
Balance, beginning of period	1	685	446	214
Net gains (losses)	458	460	(83)	1,204
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	(145)	(622)	(44)	(895)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	(5)	0
Balance, end of period	314	523	314	523
Net unrealized gains (losses) related to assets and liabilities held at period end	167	291	109	374
Derivative [Member] | Equity contracts [Member]
Assets and Liabilities:
Balance, beginning of period	(429)	217	(314)	(269)
Net gains (losses)	(158)	(277)	(326)	153
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	120	79	160	152
Transfers into Level 3	(10)	0	(37)	(10)
Transfers out of Level 3	52	1	92	(6)
Balance, end of period	(425)	20	(425)	20
Net unrealized gains (losses) related to assets and liabilities held at period end	(130)	(387)	(236)	48
Derivative [Member] | Other contract [Member]
Assets and Liabilities:
Balance, beginning of period	56	(3)	39	(5)
Net gains (losses)	(67)	7	(40)	(48)
Purchases	2	2	2	8
Sales	(1)	(1)	(1)	(4)
Settlements	42	12	32	72
Transfers into Level 3	0	18	0	12
Transfers out of Level 3	3	0	3	0
Balance, end of period	35	35	35	35
Net unrealized gains (losses) related to assets and liabilities held at period end	(16)	47	4	33
Securities [Member] | Equity securities [Member]
Assets:
Balance, beginning of period	8,865	6,754	9,233	7,850
Net gains (losses)	794	1,414	429	313
Purchases	0	0	0	0
Sales	0	0	(5)	0
Settlements	0	0	0	0
Transfers into Level 3	1	0	3	7
Transfers out of Level 3	0	(3)	0	(5)
Balance, end of period	9,660	8,165	9,660	8,165
Net unrealized gains (losses) related to assets and liabilities held at period end	$ 794	$ 1,414	$ 429	$ 310

Fair Value, Assets and Liabil_3

Fair Value, Assets and Liabilities, Valuation Techniques - Recurring Basis (Details) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)$ / loan	Dec. 31, 2020USD ($)$ / loan
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 6,717	$ 6,125
Fair value, recurring [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	18,894	18,806
Fair Value Disclosures, Textual [Abstract]
Total assets prior to derivative netting	394,445	419,955
Total liabilities prior to derivative netting	(71,696)	(80,506)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	1,069	1,234
Insignificant Level 3 assets, net of liabilities	36	44
Assets, fair value disclosure, net of liabilities	20,367	19,930
Fair Value Disclosures, Textual [Abstract]
Total assets prior to derivative netting	22,837	21,934
Total liabilities prior to derivative netting	(2,470)	(2,004)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading and available-for-sale debt securities	1,926	2,126
Loans held for sale	1,069	1,234
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, vendor priced [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading and available-for-sale debt securities	$ 747	$ 759
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	0.004	0.004
Loans held for sale, measurement input	0.011	0.013
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	0.124	0.147
Loans held for sale, measurement input	0.125	0.120
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	0.044	0.036
Loans held for sale, measurement input	0.046	0.045
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading and available-for-sale debt securities	$ 193	$ 173
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Minimum [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	(0.291)	(0.398)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Maximum [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	0.095	0.003
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Weighted average [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	(0.066)	(0.084)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.357	0.316
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.015	0.017
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.329	0.323
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.158	0.184
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.069	0.083
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.176	0.236
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.129	0.151
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, multiples [Member] | Valuation, market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Trading and available-for-sale debt securities	$ 131	$ 109
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, multiples [Member] | Minimum [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	0.4	7.2
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, multiples [Member] | Maximum [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	12.1	12.1
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Measurement input, multiples [Member] | Weighted average [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Trading and available-for-sale debt securities, measurement input	6.5	8
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 139	$ 206
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, default rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, default rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.060	0.060
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, default rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.019	0.017
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, loss severity [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.500	0.500
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, loss severity [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.500	0.500
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, loss severity [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.500	0.500
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, prepayment rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.028	0.028
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, prepayment rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.220	0.220
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member] | Measurement input, prepayment rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.185	0.182
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 175	$ 240
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, fall-out factor [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.010	0.010
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, fall-out factor [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.990	0.990
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, fall-out factor [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.202	0.288
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, initial-value servicing [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.00659)	(0.00516)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, initial-value servicing [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.01510	0.02680
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Derivative loan commitments [Member] | Measurement input, initial-value servicing [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.00899	0.00655
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ 239	$ 220
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Valuation technique, option model [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net derivative assets and (liabilities)	$ (664)	$ (534)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, weighted average life [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), term of contract	0 years	6 months
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, weighted average life [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), term of contract	2 years 6 months	2 years
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, weighted average life [Member] | Weighted average [Member] | Valuation technique, 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
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, conversion factor [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.093)	(0.086)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, conversion factor [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0	0
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, conversion factor [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.090)	(0.082)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, correlation factor [Member] | Minimum [Member] | Valuation technique, option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	(0.770)	(0.770)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, correlation factor [Member] | Maximum [Member] | Valuation technique, option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.990	0.990
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, correlation factor [Member] | Weighted average [Member] | Valuation technique, option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.175	0.248
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, volatility factor [Member] | Minimum [Member] | Valuation technique, option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.065	0.065
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, volatility factor [Member] | Maximum [Member] | Valuation technique, option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.788	0.966
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member] | Measurement input, volatility factor [Member] | Weighted average [Member] | Valuation technique, option model [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Net derivative assets and (liabilities), measurement input	0.218	0.264
Fair value, recurring [Member] | Non modified loans [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	57	63
Fair value, recurring [Member] | Non modified loans [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	239	252
Fair value, recurring [Member] | Residential mortgage [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 6,717	$ 6,125
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	6,717	6,125
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 6,717	$ 6,125
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.046	0.049
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.083	0.083
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.054	0.058
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	57	63
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	642	712
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	111	130
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Minimum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.142	0.143
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Maximum [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.214	0.228
Fair value, recurring [Member] | Residential mortgage [Member] | Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Weighted average [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.172	0.199
Fair value, recurring [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 9,858	$ 9,259
Fair value, 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	9,659	9,228
Fair value, recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Valuation, market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 9,659	$ 9,228
Fair value, recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Minimum [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.193)	(0.203)
Fair value, recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Maximum [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.055)	(0.032)
Fair value, recurring [Member] | Nonmarketable equity securities [Member] | Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Weighted average [Member] | Valuation, market comparable pricing [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.156)	(0.138)

Fair Value, Assets and Liabil_4

Fair Value, Assets and Liabilities, Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	$ 6,717	$ 6,125
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	4,395	5,617
Loans	653	1,780
Other assets	1,133	1,778
Total assets at fair value on a nonrecurring basis	10,715	12,872
Nonrecurring [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	3,967	3,187
Nonrecurring [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	432	1,385
Mortgage servicing rights	567	510
Nonrecurring [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	221	395
Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	2,956	2,672
Loans	653	1,780
Other assets	976	1,350
Total assets at fair value on a nonrecurring basis	8,467	8,199
Nonrecurring [Member] | Level 2 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	3,882	2,397
Nonrecurring [Member] | Level 2 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	432	1,385
Mortgage servicing rights	0	0
Nonrecurring [Member] | Level 2 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	221	395
Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	1,439	2,945
Loans	0	0
Other assets	157	428
Total assets at fair value on a nonrecurring basis	2,248	4,673
Nonrecurring [Member] | Level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	85	790
Other assets		417
Nonrecurring [Member] | Level 3 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Mortgage servicing rights	567	510
Nonrecurring [Member] | Level 3 [Member] | Total Consumer [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 0	$ 0

Fair Value, Assets and Liabil_5

Fair Value, Assets and Liabilities, Changes in Value of Assets with Nonrecurring Fair Value Adjustment (Details) - Nonrecurring [Member] - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans held for sale	$ 38	$ (77)
Loans	(272)	(520)
Nonmarketable equity securities	2,215	(410)
Other assets	(56)	(394)
Total	1,956	(1,431)
Total Commercial [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	(182)	(392)
Mortgage servicing rights	31	(30)
Total Consumer [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	$ (90)	$ (128)

Fair Value, Assets and Liabil_6

Fair Value, Assets and Liabilities, Valuation Techniques - Nonrecurring Basis (Details) - Nonrecurring [Member] $ in Millions	Jun. 30, 2021USD ($)$ / loan	Dec. 31, 2020USD ($)$ / loanuSDollarPerMMBtuuSDollarPerBarrel
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	$ 4,395	$ 5,617
Other assets	1,133	1,778
Total assets at fair value on a nonrecurring basis	10,715	12,872
Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	3,967	3,187
Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	1,439	2,945
Other assets	157	428
Total insignificant level 3 assets		19
Total assets at fair value on a nonrecurring basis	2,248	4,673
Fair value, inputs, level 3 [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	1,269	1,628
Other assets	157
Fair value, inputs, level 3 [Member] | Valuation, market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	170	1,317
Fair value, inputs, level 3 [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	567	510
Fair value, inputs, level 3 [Member] | Residential [Member] | Non-government insured/guaranteed [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	200	300
Fair value, inputs, level 3 [Member] | Residential [Member] | Government insured or guaranteed [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	$ 1,200	$ 2,600
Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.008	0.003
Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.802	0.855
Fair value, inputs, level 3 [Member] | Measurement input, default rate [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.303	0.315
Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.006	0.006
Other assets, measurement input	0.003
Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.126	0.119
Other assets, measurement input	0.044
Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.031	0.030
Other assets, measurement input	0.029
Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.040	0.019
Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.042	0.019
Fair value, inputs, level 3 [Member] | Measurement input, discount rate [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.040	0.019
Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.003	0.004
Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.510	0.450
Fair value, inputs, level 3 [Member] | Measurement input, loss severity [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.059	0.081
Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.042	0.083
Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	1	1
Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	0.413	0.425
Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0	0
Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.206	0.200
Fair value, inputs, level 3 [Member] | Measurement input, prepayment rate [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input	0.055	0.054
Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	150	150
Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	3,381	3,377
Fair value, inputs, level 3 [Member] | Measurement input, cost to service per loan [Member] | Commercial [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Mortgage servicing rights, measurement input | $ / loan	2,773	2,779
Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	(0.059)	(0.116)
Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	(0.014)	(0.018)
Fair value, inputs, level 3 [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Loans held for sale, measurement input	(0.050)	(0.031)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 85	$ 790
Other assets		417
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Valuation technique, discounted cash flow [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 5	91
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Valuation technique, other [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities		$ 76
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, discount rate [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.105	0.100
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, discount rate [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.105	0.200
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, discount rate [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	0.105	0.115
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, multiples [Member] | Valuation, market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 15	$ 844
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, multiples [Member] | Valuation, market comparable pricing [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	2	0.1
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, multiples [Member] | Valuation, market comparable pricing [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	3.3	10.9
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, multiples [Member] | Valuation, market comparable pricing [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	2.8	5
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 65	$ 188
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(1)	(1)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.053)	(0.200)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, market comparability adjustment [Member] | Valuation, market comparable pricing [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input	(0.500)	(0.614)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, company risk factor [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input		(0.626)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, company risk factor [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input		0
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, company risk factor [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input		(0.303)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, company risk factor [Member] | Valuation technique, other [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input		(1)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, company risk factor [Member] | Valuation technique, other [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input		(0.200)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, company risk factor [Member] | Valuation technique, other [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input		(0.577)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, crude oil price ($/barrel) [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input | uSDollarPerBarrel		42
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, crude oil price ($/barrel) [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input | uSDollarPerBarrel		48
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, crude oil price ($/barrel) [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input | uSDollarPerBarrel		47
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, natural gas price ($/MMBtu) [Member] | Valuation technique, discounted cash flow [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input | uSDollarPerMMBtu		2
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, natural gas price ($/MMBtu) [Member] | Valuation technique, discounted cash flow [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input | uSDollarPerMMBtu		2
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member] | Measurement input, natural gas price ($/MMBtu) [Member] | Valuation technique, discounted cash flow [Member] | Weighted average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Nonmarketable equity securities, measurement input | uSDollarPerMMBtu		2

Fair Value, Assets and Liabil_7

Fair Value, Assets and Liabilities, Fair Value Option (Details) - Fair value option election [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale, carried at fair value	$ 18,894		$ 18,894		$ 18,806
Loans held for sale, Aggregate unpaid principal	18,526		18,526		18,217
Loans held for sale, Fair ​value carrying amount less aggregate unpaid principal	368		368		$ 589
Loans held for sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value option, changes in fair value, gain (loss)	$ 823	$ 773	$ 1,200	$ 1,100

Fair Value, Assets and Liabil_8

Fair Value, Assets and Liabilities, Fair Value Estimates for Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Financial assets
Cash and due from banks	$ 25,304	$ 28,236
Interest-earning deposits with banks	248,869	236,376
Federal funds sold and securities purchased under resale agreements	70,149	65,672
Held-to-maturity debt securities	260,941	205,720
Loans held for sale	25,594	36,384
Loans, net	837,152	869,121
Financial liabilities
Deposits	1,440,472	1,404,381	$ 1,410,711
Short-term borrowings	45,635	58,999
Long-term Debt	179,656	212,950
Carrying value [Member]
Financial assets
Cash and due from banks	25,304	28,236
Interest-earning deposits with banks	248,869	236,376
Federal funds sold and securities purchased under resale agreements	70,149	65,672
Held-to-maturity debt securities	260,941	205,720
Loans held for sale	6,700	17,578
Loans, net	821,774	853,595
Nonmarketable equity securities	3,585	3,588
Total financial assets	1,437,322	1,410,765
Financial liabilities
Deposits	35,964	52,807
Short-term borrowings	45,635	58,999
Long-term Debt	179,625	212,922
Total financial liabilities	261,224	324,728
Fair Value Disclosures, Textual [Abstract]
Deposit liabilities with no defined or contractual maturity	1,400,000	1,400,000
Carrying value [Member] | Finance leases [Member]
Financial liabilities
Long-term Debt	28	28
Carrying value [Member] | Commercial lease financing [Member]
Financial assets
Loans, net	15,200	15,400
Estimated fair value [Member]
Financial assets
Cash and due from banks	25,304	28,236
Interest-earning deposits with banks	248,869	236,376
Federal funds sold and securities purchased under resale agreements	70,149	65,672
Held-to-maturity debt securities	264,087	212,307
Loans held for sale	6,928	18,371
Loans, net	840,792	874,097
Nonmarketable equity securities	3,647	3,632
Total financial assets	1,459,776	1,438,691
Financial liabilities
Deposits	36,191	53,261
Short-term borrowings	45,635	58,999
Long-term Debt	187,963	220,702
Total financial liabilities	269,789	332,962
Fair Value Disclosures, Textual [Abstract]
Loan commitments and standby, commercial and similar letters of credit	1,400	1,400
Estimated fair value [Member] | Fair Value, Inputs, Level 1 [Member]
Financial assets
Cash and due from banks	25,304	28,236
Interest-earning deposits with banks	248,686	236,258
Federal funds sold and securities purchased under resale agreements	0	0
Held-to-maturity debt securities	28,028	48,597
Loans held for sale	0	0
Loans, net	0	0
Nonmarketable equity securities	0	0
Total financial assets	302,018	313,091
Financial liabilities
Deposits	0	0
Short-term borrowings	0	0
Long-term Debt	0	0
Total financial liabilities	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	183	118
Federal funds sold and securities purchased under resale agreements	70,149	65,672
Held-to-maturity debt securities	235,075	162,777
Loans held for sale	5,259	14,952
Loans, net	59,140	56,270
Nonmarketable equity securities	0	0
Total financial assets	369,806	299,789
Financial liabilities
Deposits	18,823	33,321
Short-term borrowings	45,635	58,999
Long-term Debt	186,681	219,321
Total financial liabilities	251,139	311,641
Estimated fair value [Member] | Fair value, inputs, level 3 [Member]
Financial assets
Cash and due from banks	0	0
Interest-earning deposits with banks	0	0
Federal funds sold and securities purchased under resale agreements	0	0
Held-to-maturity debt securities	984	933
Loans held for sale	1,669	3,419
Loans, net	781,652	817,827
Nonmarketable equity securities	3,647	3,632
Total financial assets	787,952	825,811
Financial liabilities
Deposits	17,368	19,940
Short-term borrowings	0	0
Long-term Debt	1,282	1,381
Total financial liabilities	$ 18,650	$ 21,321

Preferred Stock (Details)

Preferred Stock (Details) $ / shares in Units, $ in Millions	Jun. 15, 2021USD ($)shares	Mar. 15, 2021USD ($)shares	Jun. 30, 2021USD ($)$ / sharesshares		Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)vote$ / sharesshares		Jun. 30, 2020USD ($)	[3]	Dec. 31, 2020USD ($)$ / sharesshares	Jul. 20, 2021USD ($)	Feb. 28, 2021USD ($)	Jan. 31, 2021USD ($)
Detail of Preferred Stock [Abstract]
Preferred stock shares authorized and designated | shares			5,622,642			5,622,642				5,557,652
ESOP liquidation preference per share (in dollars per share) | $ / shares			$ 0			$ 0				$ 0
ESOP shares authorized and designated | shares			822,242			822,242				822,242
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			5,558,683			5,558,683				5,496,293
Voting rights						If issued, preference shares would be limited to one vote per share
Carrying value			$ 20,820			$ 20,820				$ 21,136
Discount			$ 768			$ 768				$ 768
ESOP shares issued and outstanding | shares			822,242			822,242				822,242
ESOP liquidation preference value			$ 822			$ 822				$ 822
ESOP carrying value			822			822				822
ESOP discount			0			0				0
Preferred stock, par or stated value			21,588			21,588				$ 21,904
Preferred stock redeemed, value			$ 350	[1]	$ 0	$ 4,876	[2]	$ 2,470
Preferred stock, no voting rights [Member]
Class of Stock [Line Items]
Preferred shares authorized | shares			20,000,000			20,000,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, par or stated value			$ 0			$ 0
Preferred stock, voting rights [Member]
Class of Stock [Line Items]
Preferred shares authorized | shares			4,000,000			4,000,000
Number of votes per share | vote						1
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			0			0
Preferred stock, par or stated value			$ 0			$ 0
Dividend Equalization Preferred Shares (DEP) [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 10			$ 10				$ 10
Preferred stock shares authorized and designated | shares			97,000			97,000				97,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			96,546			96,546				96,546
Preferred stock, liquidation preference, value			$ 0			$ 0				$ 0
Carrying value			0			0				0
Discount			$ 0			$ 0				$ 0
Series I - Floating Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend payment rate, variable						the greater of three-month London Interbank Offered Rate (LIBOR) plus 0.93% and 5.56975				the greater of three-month London Interbank Offered Rate (LIBOR) plus 0.93% and 5.56975
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 0			$ 0				$ 100,000
Preferred stock shares authorized and designated | shares			0			0				25,010
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			0			0				25,010
Preferred stock, liquidation preference, value			$ 0			$ 0				$ 2,501
Carrying value			0			0				2,501
Discount			$ 0			$ 0				$ 0
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				$ 1,000
Preferred stock shares authorized and designated | shares			4,025,000			4,025,000				4,025,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			3,967,995			3,967,995				3,967,995
Preferred stock, liquidation preference, value			$ 3,968			$ 3,968				$ 3,968
Carrying value			3,200			3,200				3,200
Discount			$ 768			$ 768				$ 768
Series N - 5.20% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.20%				5.20%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 0			$ 0				$ 25,000
Preferred stock shares authorized and designated | shares			0			0				30,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			0			0				30,000
Preferred stock, liquidation preference, value			$ 0			$ 0				$ 750
Carrying value			0			0				750
Discount			$ 0			$ 0				$ 0
Preferred stock redeemed, shares | shares	14,000	16,000
Preferred stock redeemed, value	$ 350	$ 400
Series O - 5.125% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.125%				5.125%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			27,600			27,600				27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			26,000			26,000				26,000
Preferred stock, liquidation preference, value			$ 650			$ 650				$ 650
Carrying value			650			650				650
Discount			$ 0			$ 0				$ 0
Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.25%				5.25%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 0			$ 0				$ 25,000
Preferred stock shares authorized and designated | shares			0			0				26,400
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			0			0				25,000
Preferred stock, liquidation preference, value			$ 0			$ 0				$ 625
Carrying value			0			0				625
Discount			$ 0			$ 0				$ 0
Series Q - 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.85%				5.85%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			69,000			69,000				69,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			69,000			69,000				69,000
Preferred stock, liquidation preference, value			$ 1,725			$ 1,725				$ 1,725
Carrying value			1,725			1,725				1,725
Discount			$ 0			$ 0				$ 0
Series R - 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						6.625%				6.625%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			34,500			34,500				34,500
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			33,600			33,600				33,600
Preferred stock, liquidation preference, value			$ 840			$ 840				$ 840
Carrying value			840			840				840
Discount			$ 0			$ 0				$ 0
Series S - 5.900% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.90%				5.90%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			80,000			80,000				80,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			80,000			80,000				80,000
Preferred stock, liquidation preference, value			$ 2,000			$ 2,000				$ 2,000
Carrying value			2,000			2,000				2,000
Discount			$ 0			$ 0				$ 0
Series U - 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.875%				5.875%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			80,000			80,000				80,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			80,000			80,000				80,000
Preferred stock, liquidation preference, value			$ 2,000			$ 2,000				$ 2,000
Carrying value			2,000			2,000				2,000
Discount			$ 0			$ 0				$ 0
Series 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			$ 0			$ 0				$ 25,000
Preferred stock shares authorized and designated | shares			0			0				40,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			0			0				40,000
Preferred stock, liquidation preference, value			$ 0			$ 0				$ 1,000
Carrying value			0			0				1,000
Discount			$ 0			$ 0				$ 0
Series X - 5.500% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.50%				5.50%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			46,000			46,000				46,000
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			46,000			46,000				46,000
Preferred stock, liquidation preference, value			$ 1,150			$ 1,150				$ 1,150
Carrying value			1,150			1,150				1,150
Discount			$ 0			$ 0				$ 0
Series Y - 5.625% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						5.625%				5.625%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			27,600			27,600				27,600
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			27,600			27,600				27,600
Preferred stock, liquidation preference, value			$ 690			$ 690				$ 690
Carrying value			690			690				690
Discount			$ 0			$ 0				$ 0
Series Z - 4.75% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						4.75%				4.75%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			80,500			80,500				80,500
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			80,500			80,500				80,500
Preferred stock, liquidation preference, value			$ 2,013			$ 2,013				$ 2,013
Carrying value			2,013			2,013				2,013
Discount			$ 0			$ 0				$ 0
Series AA - 4.70% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						4.70%				4.70%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 25,000
Preferred stock shares authorized and designated | shares			46,800			46,800				46,800
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			46,800			46,800				46,800
Preferred stock, liquidation preference, value			$ 1,170			$ 1,170				$ 1,170
Carrying value			1,170			1,170				1,170
Discount			$ 0			$ 0				$ 0
Series BB - 3.90% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						3.90%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 0
Preferred stock shares authorized and designated | shares			140,400			140,400				0
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			140,400			140,400				0
Preferred stock, liquidation preference, value			$ 3,510			$ 3,510				$ 0
Carrying value			3,510			3,510				0
Discount			$ 0			$ 0				$ 0
Preferred stock, par or stated value													$ 3,500
Series CC - 4.375% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Detail of Preferred Stock [Abstract]
Preferred stock, dividend rate (percent)						4.375%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares			$ 25,000			$ 25,000				$ 0
Preferred stock shares authorized and designated | shares			46,000			46,000				0
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Shares issued and outstanding | shares			42,000			42,000				0
Preferred stock, liquidation preference, value			$ 1,050			$ 1,050				$ 0
Carrying value			1,050			1,050				0
Discount			$ 0			$ 0				$ 0
Preferred stock, par or stated value												$ 1,050
Series DD - Non-Cumulative Perpetual Class A Preferred Stock [Member] | Subsequent event [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, par or stated value											$ 1,250
Preferred Stock Series I, P, W and N [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock redeemed, value		$ 4,500
[1]	Represents the impact of the redemption of the remaining Preferred Stock, Series N, in second quarter 2021. For additional information, see Note 16 (Preferred Stock).
[2]	Represents the impact of the redemption of Preferred Stock, Series I, Series P and Series W, in first quarter 2021, and Preferred Stock, Series N, in second quarter 2021. For additional information, see Note 16 (Preferred Stock).
[3]	Represents the impact of the redemption of the remaining Preferred Stock, Series K, and partial redemption of Preferred Stock, Series T, in first quarter 2020.

ESOP Preferred Stock (Details)

ESOP Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Additional paid-in capital included related to preferred stock	$ 53	$ 53
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	822,242	822,242
Carrying value	$ 822	$ 822
Unearned ESOP shares	$ (875)	$ (875)
Employee Stock Ownership Plan Preferred Stock 2018 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	221,945	221,945
Carrying value	$ 222	$ 222
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	163,210	163,210
Carrying value	$ 163	$ 163
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	162,450	162,450
Carrying value	$ 162	$ 162
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	92,904	92,904
Carrying value	$ 93	$ 93
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	99,151	99,151
Carrying value	$ 99	$ 99
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	61,948	61,948
Carrying value	$ 62	$ 62
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	20,634	20,634
Carrying value	$ 21	$ 21
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%
Equity award [Member] | Convertible preferred stock [Member] | Minimum [Member]
Class of Stock [Line Items]
Preferred stock, redemption price per share	$ 1,000	$ 1,000

Revenue from Contracts with C_3

Revenue from Contracts with Customers, Revenue by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	$ 8,800	$ 9,892		$ 17,608	$ 21,222
Lending-related fees	362	323		723	673
Other card fees	120	99		235	261
Total card fees	1,077	797		2,026	1,689
Mortgage banking	1,336	317		2,662	696
Net gains (losses) from trading activities	21	807		369	871
Net gains (losses) from equity securities	2,696	533		3,088	(868)
Lease income	313	335		628	688
Other	379	577		1,046	1,525
Total noninterest income	11,470	8,394		21,194	15,237
Total revenue	20,270	18,286		38,802	36,459
Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	212		151	449
Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,342	1,142		2,597	2,589
Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,794	2,254	[1]	5,550	4,760	[1]
Trailing commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	300	257		598	532
Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	580	550	[1]	1,216	1,227	[1]
Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	570	547		1,138	938
Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	957	698		1,791	1,428
Credit card rewards and rebates [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Other cost of revenue	373	266		683	651
Corporate [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	(304)	60		(694)	939
Lending-related fees	(1)	0		(1)	0
Other card fees	(1)	0		0	0
Total card fees	(1)	0		0	2
Mortgage banking	0	(1)		0	(1)
Net gains (losses) from trading activities	(14)	(13)		(6)	22
Net gains (losses) from equity securities	2,612	403		2,882	(659)
Lease income	140	141		280	295
Other	209	258		678	571
Total noninterest income	3,327	1,318		4,744	1,303
Total revenue	3,023	1,378		4,050	2,242
Corporate [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	206		151	443
Corporate [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1	3		5	5
Corporate [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	398	387		821	796
Corporate [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	1		(1)	(5)
Corporate [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(16)	(67)		(65)	(166)
Corporate [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	2
Reconciling Items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	(109)	(121)		(216)	(264)
Lending-related fees	0	0		0	0
Other card fees	0	0		0	0
Total card fees	0	0		0	0
Mortgage banking	0	0		0	0
Net gains (losses) from trading activities	0	0		0	0
Net gains (losses) from equity securities	0	0		0	0
Lease income	0	0		0	0
Other	(312)	(195)		(583)	(415)
Total noninterest income	(312)	(195)		(583)	(415)
Total revenue	(421)	(316)		(799)	(679)
Reconciling Items [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		0	0
Reconciling Items [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Reconciling Items [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Reconciling Items [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Reconciling Items [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Reconciling Items [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Consumer Banking and Lending [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	5,618	5,717		11,233	11,719
Lending-related fees	36	33		76	81
Other card fees	121	99		235	261
Total card fees	1,017	749		1,909	1,568
Mortgage banking	1,158	256		2,417	598
Net gains (losses) from trading activities	0	1		1	1
Net gains (losses) from equity securities	0	0		34	0
Lease income	0	0		0	0
Other	127	272		285	832
Total noninterest income	3,068	1,891		6,107	4,538
Total revenue	8,686	7,608		17,340	16,257
Consumer Banking and Lending [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	6		0	6
Consumer Banking and Lending [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	732	575		1,393	1,454
Consumer Banking and Lending [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Consumer Banking and Lending [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Consumer Banking and Lending [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(2)	(1)		(8)	(2)
Consumer Banking and Lending [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	896	650		1,674	1,307
Commercial Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	1,202	1,554		2,456	3,287
Lending-related fees	135	125		271	253
Other card fees	0	0		0	0
Total card fees	49	36		94	88
Mortgage banking	0	0		0	0
Net gains (losses) from trading activities	(1)	1		1	(4)
Net gains (losses) from equity securities	32	(28)		45	(222)
Lease income	173	189		347	387
Other	182	143		304	253
Total noninterest income	906	797		1,733	1,409
Total revenue	2,108	2,351		4,189	4,696
Commercial Banking [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		0	0
Commercial Banking [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	325	297		642	599
Commercial Banking [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2	8		7	16
Commercial Banking [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0	0
Commercial Banking [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	9	26		22	39
Commercial Banking [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	49	36		94	88
Corporate and Investment Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	1,783	1,963		3,562	3,984
Lending-related fees	190	163		373	335
Other card fees	0	0		0	0
Total card fees	11	11		21	29
Mortgage banking	181	65		251	105
Net gains (losses) from trading activities	30	809		361	844
Net gains (losses) from equity securities	46	8		121	124
Lease income	0	5		1	6
Other	160	83		335	248
Total noninterest income	1,555	2,096		3,380	3,483
Total revenue	3,338	4,059		6,942	7,467
Corporate and Investment Banking [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		0	0
Corporate and Investment Banking [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	277	261		543	518
Corporate and Investment Banking [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	12	24		34	40
Corporate and Investment Banking [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	68	79		149	169
Corporate and Investment Banking [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	580	588		1,191	1,065
Corporate and Investment Banking [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	11	11		21	29
Wealth and Investment Management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	610	719		1,267	1,557
Lending-related fees	2	2		4	4
Other card fees	0	0		0	0
Total card fees	1	1		2	2
Mortgage banking	(3)	(3)		(6)	(6)
Net gains (losses) from trading activities	6	9		12	8
Net gains (losses) from equity securities	6	150		6	(111)
Lease income	0	0		0	0
Other	13	16		27	36
Total noninterest income	2,926	2,487		5,813	4,919
Total revenue	3,536	3,206		7,080	6,476
Wealth and Investment Management [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		0	0
Wealth and Investment Management [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	7	6		14	13
Wealth and Investment Management [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,382	1,835		4,688	3,908
Wealth and Investment Management [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	513	470		1,068	1,063
Wealth and Investment Management [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	1		(2)	2
Wealth and Investment Management [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	$ 1	$ 1		$ 2	$ 2
[1]	In first quarter 2021, trust and investment management fees and asset-based brokerage fees were combined into a single line item for investment advisory and other asset-based fees, and brokerage commissions and other brokerage services fees were combined into a single line item for commissions and brokerage services fees. Prior period balances have been revised to conform with the current period presentation.

Employee Benefits, Components o

Employee Benefits, Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		144 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021
Qualified Plan [Member]
Components of net periodic benefit cost [Abstract]
Service Cost	$ 5	$ 4	$ 9	$ 7
Interest cost	71	86	142	172
Expected return on plan assets	(154)	(149)	(306)	(297)
Amortization of net actuarial loss (gain)	38	35	75	71
Amortization of prior service credit	0	0	0	0
Settlement loss	62	70	62	70
Net periodic benefit cost	22	46	(18)	23
Nonqualified Plan [Member]
Components of net periodic benefit cost [Abstract]
Service Cost	0	0	0	0
Interest cost	3	4	6	8
Expected return on plan assets	0	0	0	0
Amortization of net actuarial loss (gain)	3	3	7	7
Amortization of prior service credit	0	0	0	0
Settlement loss	0	0	2	3
Net periodic benefit cost	6	7	15	18
Other benefits plan assets [Member]
Components of net periodic benefit cost [Abstract]
Service Cost	0	0	0	0
Interest cost	3	4	6	8
Expected return on plan assets	(4)	(5)	(9)	(11)
Amortization of net actuarial loss (gain)	(5)	(4)	(10)	(9)
Amortization of prior service credit	(3)	(3)	(5)	(5)
Settlement loss	0	0	0	0
Net periodic benefit cost	(9)	(8)	$ (18)	$ (17)
Cash balance plan [Member]
Components of net periodic benefit cost [Abstract]
Net periodic benefit cost					$ 0
Cash balance plan [Member] | Qualified Plan [Member]
Components of net periodic benefit cost [Abstract]
Settlement loss	$ 62	$ 70
Employee Benefits and Other Expenses Textual [Abstract]
Discount rate	2.80%	2.75%	2.80%	2.75%	2.80%
Defined Benefit Plan, Plan Assets, (Increase) Decrease for Remeasurement due to Settlement	$ 347
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		$ 674
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax	$ 409	$ (604)

Employee Benefits and Other Exp

Employee Benefits and Other Expenses (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Other noninterest expense	$ 1,092	$ 1,060	$ 2,205	$ 2,021
Regulatory charges and assessments expense, including FDIC assessment expense [Member]
Defined Benefit Plan Disclosure [Line Items]
Other noninterest expense	$ 192	$ 211	$ 409	$ 374

Restructuring Charges Accruals

Restructuring Charges Accruals (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	$ 1,054	$ 1,214	$ 0
Restructuring charges	158	303	1,595
Payments and utilization	(246)	(419)	(285)
Changes in estimates	(162)	(294)	(96)
Accruals for restructuring charges, ending balance	804	804	1,214
Personnel cost [Member]
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	1,010	1,170	0
Restructuring charges	155	285	1,371
Payments and utilization	(213)	(370)	(105)
Changes in estimates	(148)	(281)	(96)
Accruals for restructuring charges, ending balance	804	804	1,170
Facility closure cost [Member]
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	0	0	0
Restructuring charges	3	18	80
Payments and utilization	4	(11)	(80)
Changes in estimates	(7)	(7)	0
Accruals for restructuring charges, ending balance	0	0	0
Other restructuring [Member]
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	44	44	0
Restructuring charges	0	0	144
Payments and utilization	(37)	(38)	(100)
Changes in estimates	(7)	(6)	0
Accruals for restructuring charges, ending balance	$ 0	$ 0	$ 44

Earnings Per Common Share, Calc

Earnings 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			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Earnings Per Common Share [Abstract]
Wells Fargo net income (loss)	$ 6,040	$ (3,846)	[1]	$ 10,676	$ (2,930)	[1]
Less: Preferred stock dividends and other	297	314		677	926
Wells Fargo net income (loss) applicable to common stock (numerator)	$ 5,743	$ (4,160)	[1]	$ 9,999	$ (3,856)	[1]
Earnings per common share
Average common shares outstanding (denominator) (in shares)	4,124.6	4,105.5	[1]	4,132.9	4,105.2	[1]
Per share (in dollars per share)	$ 1.39	$ (1.01)	[1]	$ 2.42	$ (0.94)	[1]
Diluted earnings per common share
Average common shares outstanding (in shares)	4,124.6	4,105.5	[1]	4,132.9	4,105.2	[1]
Diluted average common shares outstanding (denominator) (in shares)	4,156.1	4,105.5	[1]	4,164.6	4,105.2	[1]
Per share (in dollars per share)	$ 1.38	$ (1.01)	[1]	$ 2.40	$ (0.94)	[1]
Preferred Stock, Accretion Of Redemption Discount Or Issuance Costs	$ 4			$ 48	$ 272
Restricted share rights [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	31.5	0		31.7	0
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

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 Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted Average Number of Shares, Restricted Stock		50,700		54,700
Restricted share rights [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive instruments	200	35,900	100	900
Convertible Preferred Stock, Series L [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive instruments	25,300	25,300	25,300	25,300

Earnings Per Common Share Earni

Earnings Per Common Share Earnings Per Common Share Dividends Declared Per Common Shares (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Dividends declared per common share (in dollars per share)	$ 0.10	$ 0.51	$ 0.20	$ 1.02

Other Comprehensive Income, Com

Other Comprehensive Income, Components of Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Debt securities:
Net unrealized gains (losses) arising during the period, Before tax	$ 272	$ 1,596	$ (1,740)	$ 1,486
Net unrealized gains (losses) arising during the period, Tax effect	(68)	(395)	432	(373)
Net unrealized gains (losses) arising during the period, Net of tax	204	1,201	(1,308)	1,113
Reclassification of net (gains) losses to net income, Before tax	132	(90)	118	(262)
Reclassification of net (gains) losses to net income, Tax effect	(32)	32	(31)	64
Reclassification of net (gains) losses to net income, Net of tax	100	(58)	87	(198)
Net change, Before tax	404	1,506	(1,622)	1,224
Net change, Tax effect	(100)	(363)	401	(309)
Net change, Net of tax	304	1,143	(1,221)	915
Cash Flow Hedges:
Net change, Before tax	37	3	84	185
Net change, Tax effect	(10)	0	(21)	(45)
Net change, Net of tax	27	3	63	140
Defined benefit plans adjustments:
Net actuarial and prior service gains (losses) arising during the period, Before tax	347	(674)	357	(671)
Net actuarial and prior service gains (losses) arising during the period, Tax effect	(85)	167	(88)	166
Net actuarial and prior service gains (losses) arising during the period, Net of tax	262	(507)	269	(505)
Amortization of net actuarial loss, Before tax	36	34	72	69
Amortization of net actuarial loss, Tax effect	(9)	(9)	(18)	(17)
Amortization of net actuarial loss, Net of tax	27	25	54	52
Settlements and other, Before tax	59	67	59	68
Settlements and other, Tax effect	(14)	(16)	(13)	(16)
Settlements and other, Net of tax	45	51	46	52
Subtotal reclassifications to noninterest expense, Before tax	95	101	131	137
Subtotal reclassifications to noninterest expense, Tax effect	(23)	(25)	(31)	(33)
Subtotal reclassifications to noninterest expense, Net of tax	72	76	100	104
Net change, Before tax	442	(573)	488	(534)
Net change, Tax effect	(108)	142	(119)	133
Net change, Net of tax	334	(431)	369	(401)
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period, Before tax	23	51	36	(144)
Net unrealized gains (losses) arising during the period, Tax effect	(1)	0	(3)	2
Net unrealized gains (losses) arising during the period, Net of tax	22	51	33	(142)
Net change, Before tax	23	51	36	(144)
Net change, Tax effect	(1)	0	(3)	2
Net change, Net of tax	22	51	33	(142)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), after tax	906	987	(1,014)	731
Other comprehensive income (loss), tax effect	(219)	(221)	258	(219)
Other comprehensive income (loss), net of tax	687	766	(756)	512
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	686	766	(758)	513
Noncontrolling interests [Member]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), net of tax	1	0	2	(1)
Other noninterest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, Before tax	(2)	(1)	(2)	(2)
Reclassification of net (gains) losses to net income, Tax effect	1	0	1	0
Reclassification of net (gains) losses to net income, Net of tax	(1)	(1)	(1)	(2)
Debt securities [Member] | Interest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, Before tax	134	123	271	189
Reclassification of net (gains) losses to net income, Tax effect	(33)	(31)	(67)	(47)
Reclassification of net (gains) losses to net income, Net of tax	101	92	204	142
Debt securities [Member] | Net gains on debt securities [Member]
Debt securities:
Reclassification of net (gains) losses to net income, Before tax	0	(212)	(151)	(449)
Reclassification of net (gains) losses to net income, Tax effect	0	63	35	111
Reclassification of net (gains) losses to net income, Net of tax	0	(149)	(116)	(338)
Fair value hedging [Member]
Fair Value Hedges:
Change in fair value of excluded components on fair value hedges, before tax	(14)	(57)	11	87
Change in fair value of excluded components on fair value hedges, tax	3	13	(3)	(22)
Change in fair value of excluded components on fair value hedges, net of tax	(11)	(44)	8	65
Cash flow hedging [Member]
Cash Flow Hedges:
Net unrealized gains (losses) arising during the period on cash flow hedges, Before Tax	11	5	(20)	(15)
Net unrealized gains (losses) arising during the period on cash flow hedges, Tax	(3)	(1)	5	4
Net unrealized gains (losses) arising during the period on cash flow hedges, Net of Tax	8	4	(15)	(11)
Reclassification of net (gains) losses to net income on cash flow hedges, before tax	40	55	93	113
Reclassification of net (gains) losses to net income on cash flow hedges, tax	(10)	(12)	(23)	(27)
Reclassification of net (gains) losses to net income on cash flow hedges, net of tax	30	43	70	86
Cash flow hedging [Member] | Interest income [Member] | Loans [Member]
Cash Flow Hedges:
Reclassification of net (gains) losses to net income on cash flow hedges, before tax	39	53	91	109
Reclassification of net (gains) losses to net income on cash flow hedges, tax	(10)	(12)	(23)	(26)
Reclassification of net (gains) losses to net income on cash flow hedges, net of tax	29	41	68	83
Cash flow hedging [Member] | Interest expense on long-term debt [Member]
Cash Flow Hedges:
Reclassification of net (gains) losses to net income on cash flow hedges, before tax	1	2	2	4
Reclassification of net (gains) losses to net income on cash flow hedges, tax	0	0	0	(1)
Reclassification of net (gains) losses to net income on cash flow hedges, net of tax	$ 1	$ 2	$ 2	$ 3

Other Comprehensive Income, Cum

Other Comprehensive Income, Cumulative OCI Balances (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021		Jun. 30, 2020		Jun. 30, 2021		Jun. 30, 2020
Cumulative OCI balances [Abstract]
Balance, beginning of period	$ 188,034	[1]	$ 183,310	[1]	$ 185,712	[2]	$ 188,692	[2]
Other comprehensive income (loss), net of tax	687		766		(756)		512
Balance, end of period	193,127		178,635	[1],[2]	193,127		178,635	[1],[2]
AOCI including portion attributable to noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	485		705		(1,013)		520
Amounts reclassified from accumulated other comprehensive income	202		61		257		(8)
Other comprehensive income (loss), net of tax	687		766		(756)		512
Debt securities [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	204		1,201		(1,308)		1,113
Amounts reclassified from accumulated other comprehensive income	100		(58)		87		(198)
Other comprehensive income (loss), net of tax	304		1,143		(1,221)		915
Fair value hedges [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	(11)		(44)		8		65
Amounts reclassified from accumulated other comprehensive income	0		0		0		0
Other comprehensive income (loss), net of tax	(11)		(44)		8		65
Cash flow hedges [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	8		4		(15)		(11)
Amounts reclassified from accumulated other comprehensive income	30		43		70		86
Other comprehensive income (loss), net of tax	38		47		55		75
Defined benefit plans adjustments [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	262		(507)		269		(505)
Amounts reclassified from accumulated other comprehensive income	72		76		100		104
Other comprehensive income (loss), net of tax	334		(431)		369		(401)
Foreign currency translation adjustments [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	22		51		33		(142)
Amounts reclassified from accumulated other comprehensive income	0		0		0		0
Other comprehensive income (loss), net of tax	22		51		33		(142)
Total Wells Fargo stockholders' equity [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	686		766		(758)		513
Cumulative other comprehensive income, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(1,250)		(1,564)		194		(1,311)
Other comprehensive income (loss), net of tax	686		766		(758)		513
Balance, end of period	(564)		(798)		(564)		(798)
Debt securities, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	1,514		1,324		3,039		1,552
Balance, end of period	1,817		2,467		1,817		2,467
Fair value hedges, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(185)		(71)		(204)		(180)
Balance, end of period	(196)		(115)		(196)		(115)
Cash flow hedges, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(108)		(270)		(125)		(298)
Balance, end of period	(70)		(223)		(70)		(223)
Defined benefit plans adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(2,369)		(2,193)		(2,404)		(2,223)
Balance, end of period	(2,035)		(2,624)		(2,035)		(2,624)
Foreign currency translation adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(102)		(354)		(112)		(162)
Balance, end of period	(80)		(303)		(80)		(303)
Noncontrolling interests [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	1,130		612		1,032		838
Other comprehensive income (loss), net of tax	1		0		2		(1)
Balance, end of period	1,865		735		1,865		735
Cumulative other comprehensive income, noncontrolling Interests [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	1		0		2		(1)
Debt securities, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	1		0		1		0
Fair value hedges, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0		0		0		0
Cash flow hedges, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0		0		0		0
Defined benefit plans adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	0		0		0		0
Foreign currency translation adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), net of tax	$ 0		$ 0		$ 1		$ (1)
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	We adopted Accounting Standards Update (ASU) 2016-13 – Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL) effective January 1, 2020. For additional information, see Note 1 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2020. In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).

Operating Segments (Details)

Operating Segments (Details) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021USD ($)		Jun. 30, 2020USD ($)		Jun. 30, 2021USD ($)		Jun. 30, 2020USD ($)		Dec. 31, 2020USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments					4
Financial Information of Operating Segment [Abstract]
Net interest income	$ 8,800		$ 9,892		$ 17,608		$ 21,222
Noninterest income	11,470		8,394		21,194		15,237
Total revenue	20,270		18,286		38,802		36,459
Provision for credit losses	(1,260)		9,534		(2,308)		13,539
Noninterest expense	13,341		14,551		27,330		27,599
Income (loss) before income tax expense	8,189		(5,799)		13,780		(4,679)
Income tax expense (benefit)	1,445		(2,001)	[1]	2,346		(1,648)	[1]
Net income (loss) before noncontrolling interests	6,744		(3,798)	[2]	11,434		(3,031)	[2]
Less: Net income (loss) from noncontrolling interests	704		48		758		(101)
Net Income (loss)	6,040		(3,846)	[1]	10,676		(2,930)	[1]
Loans (average)	854,747		971,266		864,041		968,156
Assets (average)	1,939,879		1,947,180		1,937,167		1,948,025
Deposits (average)	1,435,824		1,386,656		1,414,765		1,362,309
Loans (period-end)	852,300		935,155		852,300		935,155		$ 887,637
Assets	1,945,996	[3]	1,967,048		1,945,996	[3]	1,967,048		1,952,911	[3]
Deposits (period-end)	1,440,472		1,410,711		1,440,472		1,410,711		$ 1,404,381
Corporate [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	(304)		60		(694)		939
Noninterest income	3,327		1,318		4,744		1,303
Total revenue	3,023		1,378		4,050		2,242
Provision for credit losses	(34)		126		63		388
Noninterest expense	1,000		1,251		2,231		1,942
Income (loss) before income tax expense	2,057		1		1,756		(88)
Income tax expense (benefit)	223		(300)		(52)		21
Net income (loss) before noncontrolling interests	1,834		301		1,808		(109)
Less: Net income (loss) from noncontrolling interests	704		47		757		(103)
Net Income (loss)	1,130		254		1,051		(6)
Loans (average)	10,077		21,534		10,152		21,517
Assets (average)	754,629		655,617		741,203		642,513
Deposits (average)	41,696		82,640		44,080		94,307
Loans (period-end)	10,593		21,948		10,593		21,948
Assets	761,915		713,309		761,915		713,309
Deposits (period-end)	40,091		76,155		40,091		76,155
Reconciling Items [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	(109)		(121)		(216)		(264)
Noninterest income	(312)		(195)		(583)		(415)
Total revenue	(421)		(316)		(799)		(679)
Provision for credit losses	0		0		0		0
Noninterest expense	0		0		0		0
Income (loss) before income tax expense	(421)		(316)		(799)		(679)
Income tax expense (benefit)	(421)		(316)		(799)		(679)
Net income (loss) before noncontrolling interests	0		0		0		0
Less: Net income (loss) from noncontrolling interests	0		0		0		0
Net Income (loss)	0		0		0		0
Loans (average)	0		0		0		0
Assets (average)	0		0		0		0
Deposits (average)	0		0		0		0
Loans (period-end)	0		0		0		0
Assets	0		0		0		0
Deposits (period-end)	0		0		0		0
Consumer Banking and Lending [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	5,618		5,717		11,233		11,719
Noninterest income	3,068		1,891		6,107		4,538
Total revenue	8,686		7,608		17,340		16,257
Provision for credit losses	(367)		3,102		(786)		4,671
Noninterest expense	6,202		6,933		12,469		13,190
Income (loss) before income tax expense	2,851		(2,427)		5,657		(1,604)
Income tax expense (benefit)	713		(650)		1,415		(445)
Net income (loss) before noncontrolling interests	2,138		(1,777)		4,242		(1,159)
Less: Net income (loss) from noncontrolling interests	0		0		0		0
Net Income (loss)	2,138		(1,777)		4,242		(1,159)
Loans (average)	331,892		369,631		342,428		376,096
Assets (average)	388,617		427,065		398,530		433,226
Deposits (average)	835,752		715,144		812,723		683,925
Loans (period-end)	326,760		368,753		326,760		368,753
Assets	382,464		432,100		382,464		432,100
Deposits (period-end)	840,434		746,602		840,434		746,602
Consumer Banking and Lending [Member] | Maximum [Member] | Customer concentration risk [Member] | Revenue benchmark [Member]
Segment Reporting Information [Line Items]
Revenue					5
Commercial Banking [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	1,202		1,554		2,456		3,287
Noninterest income	906		797		1,733		1,409
Total revenue	2,108		2,351		4,189		4,696
Provision for credit losses	(382)		2,295		(781)		3,336
Noninterest expense	1,443		1,580		3,073		3,153
Income (loss) before income tax expense	1,047		(1,524)		1,897		(1,793)
Income tax expense (benefit)	261		(379)		473		(442)
Net income (loss) before noncontrolling interests	786		(1,145)		1,424		(1,351)
Less: Net income (loss) from noncontrolling interests	2		1		3		2
Net Income (loss)	784		(1,146)		1,421		(1,353)
Loans (average)	178,572		228,423		180,845		226,641
Assets (average)	195,453		243,762		197,396		243,293
Deposits (average)	192,586		184,132		190,984		175,929
Loans (period-end)	178,905		210,779		178,905		210,779
Assets	196,421		226,735		196,421		226,735
Deposits (period-end)	197,461		183,085		197,461		183,085
Corporate and Investment Banking [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	1,783		1,963		3,562		3,984
Noninterest income	1,555		2,096		3,380		3,483
Total revenue	3,338		4,059		6,942		7,467
Provision for credit losses	(501)		3,756		(785)		4,881
Noninterest expense	1,805		2,044		3,638		3,914
Income (loss) before income tax expense	2,034		(1,741)		4,089		(1,328)
Income tax expense (benefit)	513		(408)		1,013		(307)
Net income (loss) before noncontrolling interests	1,521		(1,333)		3,076		(1,021)
Less: Net income (loss) from noncontrolling interests	(2)		0		(2)		0
Net Income (loss)	1,523		(1,333)		3,078		(1,021)
Loans (average)	252,422		273,587		249,302		265,915
Assets (average)	513,414		535,298		512,476		543,455
Deposits (average)	190,810		239,637		192,645		252,902
Loans (period-end)	253,259		255,574		253,259		255,574
Assets	516,518		510,205		516,518		510,205
Deposits (period-end)	188,219		236,620		188,219		236,620
Wealth and Investment Management [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	610		719		1,267		1,557
Noninterest income	2,926		2,487		5,813		4,919
Total revenue	3,536		3,206		7,080		6,476
Provision for credit losses	24		255		(19)		263
Noninterest expense	2,891		2,743		5,919		5,400
Income (loss) before income tax expense	621		208		1,180		813
Income tax expense (benefit)	156		52		296		204
Net income (loss) before noncontrolling interests	465		156		884		609
Less: Net income (loss) from noncontrolling interests	0		0		0		0
Net Income (loss)	465		156		884		609
Loans (average)	81,784		78,091		81,314		77,987
Assets (average)	87,766		85,438		87,562		85,538
Deposits (average)	174,980		165,103		174,333		155,246
Loans (period-end)	82,783		78,101		82,783		78,101
Assets	88,678		84,699		88,678		84,699
Deposits (period-end)	$ 174,267		$ 168,249		$ 174,267		$ 168,249
[1]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[2]	In second quarter 2021, we elected to change our accounting method for low-income housing tax credit investments and elected to change the presentation of investment tax credits related to solar energy investments. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies).
[3]	Our consolidated assets at June 30, 2021, and December 31, 2020, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $518 million and $967 million; Loans, $4.1 billion and $10.9 billion; All other assets, $334 million and $310 million; and Total assets, $4.9 billion and $12.1 billion, respectively.

Regulatory and Agency Capital R

Regulatory and Agency Capital Requirements (Details) $ in Millions	6 Months Ended	12 Months Ended	18 Months Ended
	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Jun. 30, 2021USD ($)
Wells Fargo & Company [Member]
Regulatory leverage:
Total leverage exposure	$ 2,300,416	$ 1,963,971	$ 2,300,416
Supplementary leverage ratio (SLR)	0.0709	0.0805	0.0709
Tier 1 leverage ratio	0.0853	0.0832	0.0853
Increase in capital due to the impact of the CECL transition provision	$ 879
Post-tax increase in capital recognized under initial adoption of CECL	991		$ 991
Increase in ACL under CECL			7,500
Wells Fargo & Company [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	143,442	$ 138,297	143,442
Tier 1	162,999	158,196	162,999
Total	190,173	186,934	190,173
Assets:
Risk-weighted assets	1,126,535	1,158,355	$ 1,126,535
Adjusted average assets	$ 1,911,654	$ 1,900,258
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1273	0.1194	0.1273
Tier 1 capital	0.1447	0.1366	0.1447
Total capital	0.1688	0.1614	0.1688
Regulatory leverage:
Increased RWAs related to the impact of the CECL transition provision	$ (1,400)		$ (1,400)
Wells Fargo & Company [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	143,442	$ 138,297	143,442
Tier 1	162,999	158,196	162,999
Total	200,156	196,660	200,156
Assets:
Risk-weighted assets	1,188,727	1,193,744	$ 1,188,727
Adjusted average assets	$ 1,911,654	$ 1,900,258
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1207	0.1159	0.1207
Tier 1 capital	0.1371	0.1325	0.1371
Total capital	0.1684	0.1647	0.1684
Regulatory leverage:
Increased RWAs related to the impact of the CECL transition provision	$ 547		$ 547
Wells Fargo Bank, NA [Member]
Regulatory leverage:
Total leverage exposure	$ 2,117,710	$ 2,041,952	$ 2,117,710
Supplementary leverage ratio (SLR)	0.0714	0.0735	0.0714
Tier 1 leverage ratio	0.0862	0.0865	0.0862
Increase in capital due to the impact of the CECL transition provision	$ 879
Wells Fargo Bank, NA [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	151,121	$ 150,168	$ 151,121
Tier 1	151,121	150,168	151,121
Total	165,154	164,412	165,154
Assets:
Risk-weighted assets	988,692	1,012,751	$ 988,692
Adjusted average assets	$ 1,752,195	$ 1,735,406
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1528	0.1483	0.1528
Tier 1 capital	0.1528	0.1483	0.1528
Total capital	0.1670	0.1623	0.1670
Regulatory leverage:
Increased RWAs related to the impact of the CECL transition provision	$ (1,400)		$ (1,400)
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	151,121	$ 150,168	151,121
Tier 1	151,121	150,168	151,121
Total	174,641	173,719	174,641
Assets:
Risk-weighted assets	1,087,876	1,085,599	$ 1,087,876
Adjusted average assets	$ 1,752,195	$ 1,735,406
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1389	0.1383	0.1389
Tier 1 capital	0.1389	0.1383	0.1389
Total capital	0.1605	0.1600	0.1605
Regulatory leverage:
Increased RWAs related to the impact of the CECL transition provision	$ 547		$ 547

Regulatory and Agency Capital_2

Regulatory and Agency Capital Requirements Minimum Required Regulatory Capital Ratios – Transition Requirements (Details)	Jun. 30, 2021	Dec. 31, 2020
Wells Fargo & Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Global Systemically Important Bank (GSIB) Surcharge	0.0200
Supplementary leverage ratio, minimum	0.0300
Leverage buffer, minimum	0.0200
Common Equity Tier 1 capital	0.0900	0.0900
Tier 1 capital	0.1050	0.1050
Total capital	0.1250	0.1250
Tier 1 leverage	0.0400	0.0400
Supplementary leverage	0.0500	0.0500
Wells Fargo & Company [Member] | Standardized Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Stress Capital Buffer (SCB)	0.0250
Wells Fargo & Company [Member] | Advanced Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.0250
Wells Fargo Bank, NA [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 capital	0.0700	0.0700
Tier 1 capital	0.0850	0.0850
Total capital	0.1050	0.1050
Tier 1 leverage	0.0400	0.0400
Supplementary leverage	0.0600	0.0600
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Stress Capital Buffer (SCB)	0.0250
Wells Fargo Bank, NA [Member] | Advanced Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.0250

Cash Restrictions (Details)

Cash Restrictions (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Reserve balance for non-U.S. central banks [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash equivalents	$ 199	$ 243
Segregated for benefit brokerage customers under federal and other brokerage regulations [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash equivalents	$ 878	$ 957