Wells Fargo & Company (WFC) 10-K 22 Feb 22 2021 FY Annual report Financial data

Document - Cover page

Document - Cover page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2021	Feb. 11, 2022	Jun. 30, 2021
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	001-2979
Entity Registrant Name	WELLS FARGO & COMPANY/MN
Entity Central Index Key	0000072971
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
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
Title of 12(g) Security	Dividend Equalization Preferred Shares, no par value
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 185.7
Entity Common Stock, Shares Outstanding		3,814,556,833
Documents Incorporated by Reference [Text Block]	Incorporated Documents Where incorporated in Form 10-K 1. Portions of the Company’s Annual Report to Shareholders for the year ended December 31, 2021 (“2021 Annual Report to Shareholders”) Part I – Items 1, 1A, 2 and 3; Part II – Items 5, 7, 7A, 8 and 9A; and 2. Portions of the Company’s Proxy Statement for the Annual Meeting of Shareholders to be held April 26, 2022 (“2022 Proxy Statement”) Part III – Items 10, 11, 12, 13 and 14
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 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 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
Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series DD
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 DD
Trading Symbol	WFC.PRD
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

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	KPMG LLP
Auditor Location	Charlotte, NC
Auditor Firm ID	185

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Interest income
Debt securities	$ 9,253	$ 11,234		$ 14,955
Loans held for sale	865	947		892
Loans	28,634	34,230	[1]	44,218	[1]
Equity securities	608	554		962
Other interest income	334	954		5,128
Total interest income	39,694	47,919		66,155
Interest expense
Deposits	388	2,804		8,635
Short-term borrowings	(41)	250		2,316
Long-term debt	3,173	4,471		7,350
Other interest expense	395	438		551
Total interest expense	3,915	7,963		18,852
Net interest income	35,779	39,956		47,303
Noninterest income
Deposit and lending-related fees	6,920	6,602		7,293
Card fees	4,175	3,544		4,016
Mortgage banking	4,956	3,493		2,715
Net gains on trading and securities	7,264	2,710		3,976
Other	3,734	3,847	[1]	7,457	[1]
Total noninterest income	42,713	34,308		39,529
Total revenue	78,492	74,264		86,832
Provision for credit losses	(4,155)	14,129		2,687
Noninterest expense
Personnel	35,541	34,811		35,128
Technology, telecommunications and equipment	3,227	3,099		3,276
Occupancy	2,968	3,263		2,945
Operating losses	1,568	3,523		4,321
Professional and outside services	5,723	6,706		6,745
Advertising and promotion	600	600		1,076
Restructuring charges	76	1,499		0
Other	4,128	4,129		4,687
Total noninterest expense	53,831	57,630		58,178
Income before income tax expense (benefit)	28,816	2,505		25,967
Income tax expense (benefit)	5,578	(1,157)	[1]	5,761	[1]
Net income before noncontrolling interests	23,238	3,662	[2]	20,206	[2]
Less: Net income from noncontrolling interests	1,690	285		491
Net income (loss)	21,548	3,377	[1]	19,715	[1]
Less: Preferred stock dividends and other	1,292	1,591		1,612
Wells Fargo net income applicable to common stock	$ 20,256	$ 1,786	[1]	$ 18,103	[1]
Per share information
Earnings per common share (in dollars per share)	$ 4.99	$ 0.43	[1]	$ 4.12	[1]
Diluted earnings per common share (in dollars per share)	$ 4.95	$ 0.43	[1]	$ 4.09	[1]
Average common shares outstanding (in shares)	4,061.9	4,118	[1]	4,393.1	[1]
Diluted average common shares outstanding (in shares)	4,096.2	4,134.2	[1]	4,425.4	[1]
Investment advisory and other asset-based fees [Member]
Noninterest income
Fee income	$ 11,011	$ 9,863	[3]	$ 9,814	[3]
Commissions and brokerage service fees [Member]
Noninterest income
Fee income	2,299	2,384	[3]	2,461	[3]
Investment banking fees [Member]
Noninterest income
Fee income	$ 2,354	$ 1,865		$ 1,797
[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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Net income before noncontrolling interests	$ 23,238	$ 3,662	[1]	$ 20,206	[1]
Other comprehensive income (loss), net of tax:
Net change in debt securities	(2,375)	1,487		4,193
Net change in derivatives and hedging activities	159	149		207
Defined benefit plans adjustments	349	(181)		73
Net change in foreign currency translation adjustments	(30)	50		71
Other comprehensive income (loss), after tax	(1,897)	1,505		4,544
Total comprehensive income before noncontrolling interests	21,341	5,167	[2]	24,750	[2]
Less: Other comprehensive loss from noncontrolling interests	(1)	0		0
Less: Net income from noncontrolling interests	1,690	285		491
Total Wells Fargo stockholders' equity [Member]
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss), after tax	(1,896)	1,505		4,544
Wells Fargo comprehensive income	$ 19,652	$ 4,882	[2]	$ 24,259	[2]
[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).

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks		$ 24,616	$ 28,236
Interest-earning deposits with banks		209,614	236,376
Total cash, cash equivalents, and restricted cash		234,230	264,612
Federal funds sold and securities purchased under resale agreements		66,223	65,672
Trading, at fair value		88,265	75,095
Available-for-sale, at fair value		177,244	220,392
Held-to-maturity, at amortized cost, net of allowance for credit losses		272,022	205,720
Loans held for sale		23,617	36,384
Loans		895,394	887,637
Allowance for loan losses		(12,490)	(18,516)
Net loans		882,904	869,121
Mortgage servicing rights		8,189	7,437
Premises and equipment, net		8,571	8,895
Goodwill		25,180	26,392
Derivative assets		21,478	25,846
Equity securities		72,886	60,008
Other assets		67,259	87,337
Total assets	[1]	1,948,068	1,952,911
Liabilities
Noninterest-bearing deposits		527,748	467,068
Interest-bearing deposits		954,731	937,313
Total deposits		1,482,479	1,404,381
Short-term borrowings		34,409	58,999
Derivative liabilities		9,424	16,509
Accrued expenses and other liabilities		70,957	74,360
Long-term debt		160,689	212,950
Total liabilities	[2]	1,757,958	1,767,199
Wells Fargo stockholders’ equity:
Preferred stock		20,057	21,136
Common stock		9,136	9,136
Additional paid-in capital		60,196	60,197
Retained earnings		180,322	162,683
Cumulative other comprehensive income (loss)		(1,702)	194
Treasury stock		(79,757)	(67,791)
Unearned ESOP shares		(646)	(875)
Total Wells Fargo stockholders’ equity		187,606	184,680
Noncontrolling interests		2,504	1,032
Total equity		190,110	185,712
Total liabilities and equity		$ 1,948,068	$ 1,952,911
[1]	Our consolidated assets at December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 billion and $12.1 billion, respectively.
[2]	Our consolidated liabilities at December 31, 2021 and 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $149 million and $203 million; All other liabilities, $259 million and $900 million; and Total liabilities, $408 million and $1.1 billion, respectively.

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Assets [Abstract]
Available-for-sale, at amortized cost, net of allowance for credit losses		$ 175,463	$ 215,533
Held-to-maturity, at fair value		272,386	212,307
Mortgage servicing rights, carried at fair value		6,920	6,125
Equity securities, carried at fair value		39,098	34,009
Loans		895,394	887,637
Assets	[1]	1,948,068	1,952,911
Liabilities
Accrued expenses and other liabilities, carried at fair value		20,685	22,441
Long-term debt		160,689	212,950
Total liabilities	[2]	$ 1,757,958	$ 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		1,596,009,977	1,337,799,931
Fair value option election [Member]
Assets [Abstract]
Loans held for sale, carried at fair value		$ 15,895	$ 18,806
Carrying value [Member]
Liabilities
Long-term debt		160,660	212,922
VIEs that we consolidate [Member]
Assets [Abstract]
Assets		7,529	13,983
VIEs that we consolidate [Member] | Carrying value [Member]
Assets [Abstract]
Debt securities		71	967
Loans		4,476	10,869
All other assets		234	310
Assets		4,781	12,146
Liabilities
Long-term debt		149	203
All other liabilities		259	1,100
VIEs that we consolidate [Member] | Carrying value [Member] | Nonrecourse [Member]
Liabilities
Long-term debt		149	203
All other liabilities		259	900
Total liabilities		$ 408	$ 1,100
[1]	Our consolidated assets at December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 billion and $12.1 billion, respectively.
[2]	Our consolidated liabilities at December 31, 2021 and 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $149 million and $203 million; All other liabilities, $259 million and $900 million; and Total liabilities, $408 million and $1.1 billion, respectively.

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) shares in Millions, $ in Millions		Total	Cumulative effect from change in accounting policies, period of adoption adjustment [Member]		Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Total Wells Fargo stockholders' equity [Member]	Preferred stock [Member]	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Retained earnings [Member]Cumulative effect from change in accounting policies, period of adoption adjustment [Member]		Retained earnings [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Cumulative other comprehensive income (loss) [Member]	Cumulative other comprehensive income (loss) [Member]Cumulative effect from change in accounting policies, period of adoption adjustment [Member]	[1]	Cumulative other comprehensive income (loss) [Member]Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member]	Treasury stock [Member]	Unearned ESOP shares [Member]	Noncontrolling interests [Member]
Balance, beginning of period at Dec. 31, 2018		$ 197,066					$ 23,214	$ 9,136	$ 60,685	$ 158,163				$ (6,336)				$ (47,194)	$ (1,502)	$ 900
Balance, beginning of period (Accounting Standards Update (ASU) 2016-02 and ASU 2017-08 [Member]) at Dec. 31, 2018															$ 481		$ (5,855)
Balance, beginning of period (Accounting Standards Update (ASU) 2016-02 and ASU 2017-08 [Member], Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]) at Dec. 31, 2018	[2]		$ (459)	[1]	$ 196,607						$ (940)	[1]	$ 157,223
Beginning balance, shares at Dec. 31, 2018							9.4	4,581.3
Stockholders' Equity Period Increase (Decrease)
Net income																				491
Net income | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]	[2]	20,206								19,715
Other comprehensive income (loss), net of tax		4,544				$ 4,544								4,544						0
Noncontrolling interests		(553)																		(553)
Common stock issued		2,157							9	(382)								2,530
Common stock issued, shares								48.7
Common stock repurchased		(24,533)																(24,533)
Common stock repurchased, shares								(502.4)
Preferred stock issued		0					$ 0		0
Preferred stock issued, shares							0
Preferred stock redeemed	[3]	(1,550)					$ (1,330)		0	(220)
Preferred stock redeemed, shares	[3]						(1.6)
Preferred stock released by ESOP		335							(24)										359
Preferred stock converted to common shares		0					$ (335)		(16)									351
Preferred stock converted to common shares, shares							(0.3)	6.8
Common stock dividends		(8,443)							86	(8,529)
Preferred stock dividends		(1,392)								(1,392)
Stock-based compensation		1,234							1,234
Net change in deferred compensation and related plans		(910)							(925)									15
Net change							$ (1,665)	$ 0	364					4,544				(21,637)	359	(62)
Net change | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]	[2]	(8,905)								9,192
Net change, shares							(1.9)	(446.9)
Balance, end of period at Dec. 31, 2019							$ 21,549	$ 9,136	61,049					(1,311)				(68,831)	(1,143)	838
Balance, end of period (Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]) at Dec. 31, 2019	[2]	187,702								166,415
Balance, end of period (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019	[4]		$ 990								$ 990
Balance, end 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	[2]				$ 188,692								$ 167,405
Ending balance, shares at Dec. 31, 2019							7.5	4,134.4
Stockholders' Equity Period Increase (Decrease)
Net income																				285
Net income | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]	[2]	3,662								3,377
Other comprehensive income (loss), net of tax		1,505				1,505								1,505						0
Noncontrolling interests		(91)																		(91)
Common stock issued		2,719							207	(1,449)								3,961
Common stock issued, shares								75.6
Common stock repurchased		(3,415)																(3,415)
Common stock repurchased, shares								(75.7)
Preferred stock issued		3,116					$ 3,183		(67)
Preferred stock issued, shares							0.1
Preferred stock redeemed	[5]	(3,602)					$ (3,347)		46	(301)
Preferred stock redeemed, shares	[5]						(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
Common stock dividends		(5,015)							44	(5,059)
Preferred stock dividends		(1,290)								(1,290)
Stock-based compensation		643							643
Net change in deferred compensation and related plans		(1,461)							(1,463)									2
Net change							$ (413)	$ 0	(852)					1,505				1,040	268	194
Net change | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]	[2]	(2,980)								(4,722)
Net change, shares							(2)	9.6
Balance, end of period at Dec. 31, 2020		185,712					$ 21,136	$ 9,136	60,197					194				(67,791)	(875)	1,032
Balance, end of period (Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]) at Dec. 31, 2020	[2]	185,712								162,683
Balance, end of period (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2020							$ 21,136	$ 9,136	60,197					194				(67,791)	(875)	1,032
Balance, end 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, 2020	[6]	185,712								162,683
Ending balance, shares at Dec. 31, 2020							5.5	4,144
Ending balance, shares (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2020							5.5	4,144
Stockholders' Equity Period Increase (Decrease)
Net income		23,238								21,548										1,690
Other comprehensive income (loss), net of tax		(1,897)				$ (1,896)								(1,896)						(1)
Noncontrolling interests		(217)																		(217)
Common stock issued		2,095							(8)	(162)								2,265
Common stock issued, shares								43.8
Common stock repurchased		(14,464)																(14,464)
Common stock repurchased, shares								(306.4)
Preferred stock issued		5,756					$ 5,810		(54)
Preferred stock issued, shares							0.2
Preferred stock redeemed	[7]	(6,676)					$ (6,676)		87	(87)
Preferred stock redeemed, shares	[7]						(0.2)
Preferred stock released by ESOP		213							(16)										229
Preferred stock converted to common shares		0					$ (213)		(8)									221
Preferred stock converted to common shares, shares							(0.2)	4.4
Common stock dividends		(2,426)							29	(2,455)
Preferred stock dividends		(1,205)								(1,205)
Stock-based compensation		1,043							1,043
Net change in deferred compensation and related plans		(1,062)							(1,074)									12
Net change		4,398					$ (1,079)	$ 0	(1)	17,639				(1,896)				(11,966)	229	1,472
Net change, shares							(0.2)	(258.2)
Balance, end of period at Dec. 31, 2021		$ 190,110					$ 20,057	$ 9,136	$ 60,196	$ 180,322				$ (1,702)				$ (79,757)	$ (646)	$ 2,504
Ending balance, shares at Dec. 31, 2021							5.3	3,885.8
[1]	Effective January 1, 2019, we adopted Accounting Standards Update (ASU) 2016-02 – Leases (Topic 842) and subsequent related Updates, ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities .
[2]	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]	Represents the impact of the partial redemption of preferred stock, Series K, in third quarter 2019.
[4]	Effective January 1, 2020, we adopted ASU 2016-13 – Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL). 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.
[5]	Represents the impact of the redemption of the remaining preferred stock, Series K, in first quarter 2020, and Series T and Series V in fourth quarter 2020.
[6]	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).
[7]	Represents the impact of the redemption of Preferred Stock, Series I, Series P and Series W, in first quarter 2021; Preferred Stock, Series N, in second quarter 2021; and Preferred Stock, Series O and Series X, in third quarter 2021. For additional information, see Note 16 (Preferred Stock).

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Cash flows from operating activities:
Net income before noncontrolling interests	$ 23,238	$ 3,662	[1]	$ 20,206	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(4,155)	14,129		2,687
Changes in fair value of MSRs and LHFS carried at fair value	(1,188)	4,321		3,702
Depreciation, amortization and accretion	7,890	8,219	[1]	6,573	[1]
Deferred income tax benefit	(1,292)	(3,289)	[1]	(3,192)	[1]
Other, net	(12,194)	7,024	[2]	(3,239)	[2]
Originations and purchases of loans held for sale	(158,923)	(181,961)		(159,309)
Proceeds from sales of and paydowns on loans originally classified as held for sale	101,293	122,592		114,155
Net change in:
Debt and equity securities, held for trading	19,334	43,214		22,066
Derivative assets and liabilities	(2,472)	(5,492)		(2,665)
Other assets	15,477	(12,304)		3,034
Other accrued expenses and liabilities	1,467	1,936	[1]	2,712	[1]
Net cash provided (used) by operating activities	(11,525)	2,051		6,730
Net change in:
Federal funds sold and securities purchased under resale agreements	(551)	36,468		(21,933)
Available-for-sale debt securities:
Proceeds from sales	17,958	48,638		9,386
Prepayments and maturities	75,701	78,174		46,542
Purchases	(110,431)	(91,545)		(57,015)
Held-to-maturity debt securities:
Paydowns and maturities	79,517	36,641		13,684
Purchases	(71,245)	(46,755)		(8,649)
Equity securities, not held for trading:
Proceeds from sales and capital returns	4,933	12,187		6,143
Purchases	(7,680)	(8,677)		(6,865)
Loans:
Loans originated by banking subsidiaries, net of principal collected	(28,809)	53,718		(23,698)
Proceeds from sales of loans originally classified as held for investment	31,847	9,359		12,038
Purchases of loans	(389)	(1,313)		(2,033)
Principal collected on nonbank entities’ loans	8,985	7,927		3,912
Loans originated by nonbank entities	(11,237)	(13,052)		(5,274)
Other, net	3,782	784	[2]	4,131	[2]
Net cash provided (used) by investing activities	(7,619)	122,554		(29,631)
Net change in:
Deposits	78,582	81,755		36,137
Short-term borrowings	(24,590)	(45,513)		(1,275)
Long-term debt:
Proceeds from issuance	1,275	38,136		53,381
Repayment	(47,134)	(65,347)		(60,996)
Preferred stock:
Proceeds from issuance	5,756	3,116		0
Redeemed	(6,675)	(3,602)		(1,550)
Cash dividends paid	(1,205)	(1,290)		(1,391)
Common stock:
Repurchased	(14,464)	(3,415)		(24,533)
Cash dividends paid	(2,422)	(4,852)		(8,198)
Other, net	(361)	(231)	[2]	(711)	[2]
Net cash used by financing activities	(11,238)	(1,243)		(9,136)
Net change in cash, cash equivalents, and restricted cash	(30,382)	123,362		(32,037)
Cash, cash equivalents, and restricted cash at beginning of period	264,612	141,250		173,287
Cash, cash equivalents, and restricted cash at end of period	234,230	264,612		141,250
Supplemental cash flow disclosures:
Cash paid for interest	4,384	8,414		18,834
Cash paid for income taxes, net	$ 3,166	$ 1,175		$ 7,493
[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]	Prior period balances have been revised to conform with the current period presentation.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 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. 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 17 (Fair Values of Assets and Liabilities)); • liabilities for contingent litigation losses (Note 15 (Legal Actions)); • income taxes; and • goodwill impairment (Note 10 (Intangible Assets)). Actual results could differ from those estimates. 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 $448 million as of January 1, 2019. In second quarter 2021, we also elected to change the presentation of investment tax credits related to solar energy investments, which are accounted for under the deferral method. We reclassified the investment tax credits on our consolidated balance sheet from accrued expenses and other liabilities to a reduction of the carrying value of the investment balances. We also reclassified the investment tax credits, which are recognized over time, from income tax expense to interest income for solar energy leases or noninterest income for solar energy equity investments. We determined that this presentation is preferable because it better reflects the financial statement presentation of the investment tax credits as an integral component of the investments. The change in accounting policy was adopted retrospectively to January 1, 2019. Table 1.1 presents the impact of the accounting policy changes for LIHTC investments and solar energy investments to our consolidated statements of income and consolidated balance sheet. There was no material impact to the consolidated statement of cash flows. Table 1.1: Impact of the Accounting Policy Changes for LIHTC Investments and Solar Energy Investments Year ended December 31, 2020 Year ended December 31, 2019 Effect of accounting policy changes ($) Effect of accounting ($ 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 $ 34,109 — 121 34,230 44,146 — 72 44,218 Noninterest income 32,505 1,507 296 34,308 37,832 1,486 211 39,529 Income tax expense (benefit) (3,005) 1,431 417 (1,157) 4,157 1,321 283 5,761 Net income 3,301 76 — 3,377 19,549 166 — 19,715 Earnings per common share 0.42 0.01 — 0.43 4.08 0.04 — 4.12 Diluted earnings per common share 0.41 0.02 — 0.43 4.05 0.04 — 4.09 At December 31, 2020 Effect of accounting 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 (67) (1,977) 74,360 Retained earnings 162,890 (207) — 162,683 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 such reference rates 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. Table 1.2 summarizes financial assets and liabilities by form and measurement accounting model. Table 1.2: Accounting Model for Financial Assets and Financial Liabilities Balance sheet caption Measurement model(s) Financial statement Note reference Cash and due from banks Amortized cost Note 28: Regulatory Capital Requirements and Other Restrictions Interest-earning deposits with banks Amortized cost Note 28: Regulatory Capital Requirements and Other Restrictions Federal funds sold and securities purchased under resale agreements Amortized cost N/A Debt securities: Trading FV-NI (1) Note 2: Trading Activities Available-for-sale FV-OCI (2) Note 3: Available-for-Sale and Held-to-Maturity Debt Securities Held-to-maturity Amortized cost Note 3: Available-for-Sale and Held-to-Maturity Debt Securities Loans held for sale FV-NI (1) Note 2: Trading Activities Loans Amortized cost Note 4: Loans and Related Allowance for Credit Losses Derivative assets and liabilities FV-NI (1) FV-OCI (2) Note 2: Trading Activities Equity securities: Marketable FV-NI (1) Note 2: Trading Activities Nonmarketable FV-NI (1) Equity method Proportional amortization method Cost method Measurement alternative Note 6: Equity Securities Other assets Amortized cost (4) Note 5: Leasing Activity Deposits Amortized cost Note 11: Deposits Short-term borrowings Amortized cost N/A Accrued expenses and other liabilities Amortized cost (5) Note 2: Trading Activities Long-term debt Amortized cost Note 12: Long-Term Debt (1) FV-NI represents the fair value through net income accounting model. (2) FV-OCI represents the fair value through other comprehensive income accounting model. (3) LOCOM represents the lower of cost or fair value accounting model. (4) Other assets are generally measured at amortized cost, except for bank-owned life insurance which is measured at cash surrender value. (5) Accrued expenses and other liabilities are generally measured at amortized cost, except for short-sale trading liabilities which are measured at FV-NI. Consolidation Our consolidated financial statements include the accounts of the Parent and our subsidiaries in which we have a controlling financial interest. When our consolidated subsidiaries follow specialized industry accounting, that accounting is retained in consolidation. We are also a variable interest holder in certain entities in which equity investors do not have the characteristics of a controlling financial interest or where the entity does not have enough equity at risk to finance its activities without additional subordinated financial support from other parties (collectively referred to as variable interest entities (VIEs)). Our variable interest arises from contractual, ownership or other monetary interests in the entity, which change with fluctuations in the fair value of the entity’s net assets. We consolidate a VIE if we are the primary beneficiary, which is when we have both the power to direct the activities that most significantly impact the VIE and a variable interest that could potentially be significant to the VIE. To determine whether or not a variable interest we hold could potentially be significant to the VIE, we consider both qualitative and quantitative factors regarding the nature, size and form of our involvement with the VIE. We assess whether or not we are the primary beneficiary of a VIE on an ongoing basis. Significant intercompany accounts and transactions are eliminated in consolidation. When we have significant influence over operating and financing decisions for a company but do not own a majority of the voting equity interests, we account for the investment using the equity method of accounting, which requires us to recognize our proportionate share of the company’s earnings. If we do not have significant influence, we account for the equity security under the fair value method, cost meth od or measurement alternative. Noncontrolling interests represent the portion of net income and equity attributable to third-party owners of consolidated subsidiaries that are not wholly-owned by Wells Fargo. Substantially all of our noncontrolling interests relate to our affiliated venture capital and private equity businesses. Cash, Cash Equivalents, and Restricted Cash Cash, cash equivalents and restricted cash include cash on hand, cash items in transit, and amounts due from or held with other depository institutions. See Note 28 (Regulatory Capital Requirements and Other Restrictions) for additional information on the restrictions on cash and cash equivalents. Trading Activities We engage in trading activities to accommodate the investment and risk management activities of our customers. These activities predominantly occur in our Corporate and Investment Banking reportable operating segment. Trading assets and liabilities include debt securities, equity securities, loans held for sale, derivatives and short sales, which are reported within our consolidated balance sheet based on the accounting classification of the instrument. In addition, debt securities that are held for investment purposes that we have elected to account for under the fair value method, are classified as trading. Our trading assets and liabilities are carried on our consolidated balance sheet at fair value with changes in fair value recognized in net gains on trading and securities within noninterest income. Interest income and interest expense are recognized in net interest income. Customer accommodation trading activities include our actions as an intermediary to buy and sell financial instruments and market-making activities. We also take positions to manage our exposure to customer accommodation activities. We hold financial instruments for trading in long positions, as well as short positions, to facilitate our trading activities. As an intermediary, we interact with market buyers and sellers to facilitate the purchase and sale of financial instruments to meet the anticipated or current needs of our customers. For example, we may purchase or sell a derivative to a customer who wants to manage interest rate risk exposure. We typically enter into an offsetting derivative or security position to manage our exposure to the customer transaction. We earn income based on the transaction price difference between the customer transaction and the offsetting position, which is reflected in earnings where the fair value changes and related interest income and expense of the positions are recorded. Our market-making activities include taking long and short trading positions to facilitate customer order flow. These activities are typically executed on a short-term basis. As a market-maker we earn income due to: (1) the difference between the price paid or received for the purchase and sale of the security (bid-ask spread), (2) the net interest income of the positions, and (3) the changes in fair value of the trading positions held on our consolidated balance sheet. Additionally, we may enter into separate derivative or security positions to manage our exposure related to our long and short trading positions taken in our market-making activities. Income earned on these market-making activities are reflected in earnings where the fair value changes and related interest income and expense of the positions are recorded. Debt Securities Our investments in debt securities that are not held for trading purposes are classified as either debt securities available-for-sale (AFS) or held-to-maturity (HTM). Investments in debt securities for which the Company does not have the positive intent and ability to hold to maturity are classified as AFS. AFS debt securities are measured at fair value, with unrealized gains and losses reported in cumulative other comprehensive income (OCI). The amount reported in OCI is net of the allowance for credit losses (ACL) and applicable income taxes. Investments in debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM. HTM debt securities are measured at amortized cost, net of ACL. INTEREST INCOME AND GAIN/LOSS RECOGNITION Unamortized premiums and discounts are recognized in interest income over the contractual life of the security using the effective interest method, except for purchased callable debt securities carried at a premium. For purchased callable debt securities carried at a premium, the premium is amortized into interest income to the next call date using the effective interest method. As principal repayments are received on securities (e.g., mortgage-backed securities (MBS)), a proportionate amount of the related premium or discount is recognized in income so that the effective interest rate on the remaining portion of the security continues unchanged. We recognize realized gains and losses on the sale of debt securities in net gains on trading and securities within noninterest income using the specific identification method. IMPAIRMENT AND CREDIT LOSSES Unrealized losses on AFS debt securities are driven by a number of factors, including changes in interest rates and credit spreads which impact most types of debt securities, and prepayment rates which impact MBS and collateralized loan obligations (CLO). Additional considerations for certain types of AFS debt securities include: • Debt securities of U.S. Treasury and federal agencies, including federal agency MBS, are not impacted by credit movements given the explicit or implicit guarantees provided by the U.S. government. • Debt securities of U.S. states and political subdivisions are most impacted by changes in the relationship between municipal and term funding credit curves rather than by changes in the credit quality of the underlying securities. • Structured securities, such as MBS and CLO, are also impacted by changes in projected collateral losses of assets underlying the security. For AFS debt securities where fair value is less than amortized cost basis, we recognize impairment in earnings if we have the intent to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. Impairment is recognized in net gains on trading and securities within noninterest income equal to the difference between the amortized cost basis, net of ACL, and the fair value of the AFS debt security. Following the recognition of this impairment, the AFS debt security’s new amortized cost basis is fair value. For AFS debt securities where fair value is less than amortized cost basis where we did not recognize impairment in earnings, we record an ACL as of the balance sheet date to the extent unrealized loss is due to credit losses. See the “Allowance for Credit Losses” section in this Note for our accounting policies relating to the ACL for debt securities, which also includes debt securities classified as HTM. TRANSFERS BETWEEN CATEGORIES OF DEBT SECURITIES Upon transfer of a debt security from the AFS to HTM classification, the amortized cost is reset to fair value adjusted for any ACL previously recorded under the AFS debt security model. Unrealized gains or losses at the transfer date continue to be reported in cumulative OCI. The cumulative OCI balance is amortized into earnings over the same period as the unamortized premiums and discounts using the effective interest method. Any ACL previously recorded under the AFS debt security model is reversed and an ACL under the HTM debt security model is re-established. The reversal and re-establishment of the ACL are recorded in provision for credit losses. NONACCRUAL AND PAST DUE, AND CHARGE-OFF POLICIES We generally place debt securities on nonaccrual status using factors similar to those described for loans. When we place a debt security on nonaccrual status, we reverse the accrued unpaid interest receivable against interest income and suspend the amortization of premiums and accretion of discounts. If the ultimate collectability of the principal is in doubt on a nonaccrual debt security, any cash collected is first applied to reduce the security’s amortized cost basis to zero, followed by recovery of amounts previously charged off, and subsequently to interest income. Generally, we return a debt security to accrual status when all delinquent interest and principal become current under the contractual terms of the security and collectability of remaining principal and interest is no longer doubtful. Our debt securities are considered past due when contractually required principal or interest payments have not been made on the due dates. Our charge-off policy for debt securities are similar to those described for loans. Subsequent to charge-off, the debt security will be designated as nonaccrual and follow the process described above for any cash received. Securities Purchased and Sold Agreements Securities purchased under resale agreements and securities sold under repurchase agreements are accounted for as collateralized financing transactions and are recorded at the acquisition or sale price plus accrued interest. We monitor the fair value of securities purchased and sold as well as the collateral pledged and received. Additional collateral is pledged or returned to maintain the appropriate collateral position for the transactions. These financing transactions do not create material credit risk given the collateral provided and the related monitoring process. We include securities sold under repurchase agreements in short-term borrowings on our consolidated balance sheet. At December 31, 2021 and 2020, short-term borrowings were primarily comprised of securities sold under repurchase agreements. Loans Held for Sale Loans held for sale (LHFS) generally includes commercial and residential mortgage loans originated or purchased for sale in the securitization or whole loan market. We have elected the fair value option for a majority of residential LHFS (see Note 17 (Fair Values of Assets and Liabilities)). The remaining residential LHFS are held at the lower of cost or fair value (LOCOM) and are measured on a pool level basis. Commercial LHFS are generally held at LOCOM and are measured on an individual loan basis. We have elected the fair value option for certain commercial loans included in LHFS that are used in market-making activities for our trading business. Gains and losses on residential and commercial mortgage LHFS are generally recorded in mortgage banking noninterest income. Gains and losses on trading LHFS are recognized in net gains from trading activities. Gains and losses on other LHFS are recognized in other noninterest income. Direct loan origination costs and fees for LHFS under the fair value option are recognized in earnings at origination. For LHFS recorded at LOCOM, direct loan origination costs and fees are deferred at origination and are recognized in earnings at time of sale. Interest income on LHFS is calculated based upon the note rate of the loan and is recorded in interest income. When a determination is made at the time of commitment to originate loans as held for investment, it is our intent to hold these loans to maturity or for the foreseeable future, subject to periodic review under our management evaluation processes, including corporate asset/liability management. If subsequent changes occur, including changes in interest rates, our business strategy, or other market conditions, we may change our intent to hold these loans. When management makes this determination, we immediately transfer these loans to the LHFS portfolio at LOCOM. Loans Loans are reported at their outstanding principal balances net of any unearned income, cumulative charge-offs, unamortized deferred fees and costs on originated loans and unamortized premiums or discounts on purchased loans. Unearned income, deferred fees and costs, and discounts and premiums are amortized to interest income over the contractual life of the loan using the effective interest method. Loan commitment fees collected at closing are deferred and amortized to noninterest income on a straight-line basis over the commitment period if loan funding is unlikely. Upon funding, deferred loan commitment fees are amortized to interest income over the contractual life of the loan. Loans also include financing leases where we are the lessor. See the “Leasing Activity” section in this Note for our accounting policy for leases. NONACCRUAL AND PAST DUE LOANS We generally place loans on nonaccrual status when: • the full and timely collection of interest or principal becomes uncertain (generally based on an assessment of the borrower’s financial condition and the adequacy of collateral, if any), such as in bankruptcy or other circumstances; • they are 90 days (120 days with respect to residential mortgage loans) past due for interest or principal, unless the loan is both well-secured and in the process of collection or the loan is in an active payment deferral as a result of the COVID-19 pandemic; • part of the principal balance has been charged off; or • for junior lien mortgage loans, we have evidence that the related first lien mortgage may be 120 days past due or in the process of foreclosure regardless of the junior lien delinquency status. Credit card loans are not placed on nonaccrual status, but are generally fully charged off when the loan reaches 180 days past due. When we place a loan on nonaccrual status, we reverse the accrued unpaid interest receivable against interest income and suspend amortization of any net deferred fees. If the ultimate collectability of the recorded loan balance is in doubt on a nonaccrual loan, the cost recovery method is used and cash collected is applied to first reduce the carrying value of the loan to zero and then as a recovery of prior charge-offs. Otherwise, interest income may be recognized to the extent cash is received. Generally, we return a loan to accrual status when all delinquent interest and principal become current under the terms of the loan agreement and collectability of remaining principal and interest is no longer doubtful. We may re-underwrite modified loans at the time of a restructuring to determine if there is sufficient evidence of sustained repayment capacity based on the borrower’s financial strength, including documented income, debt to income ratios and other factors. If the borrower has demonstrated performance under the previous terms and the underwriting process shows the capacity to continue to perform under the restructured terms, the loan will generally remain in accruing status. When a loan classified as a troubled debt restructuring (TDR) performs in accordance with its modified terms, the loan either continues to accrue interest (for performing loans) or will return to accrual status after the borrower demonstrates a sustained period of performance (generally six consecutive months of payments, or equivalent, inclusive of consecutive payments made prior to the modification). Loans will be placed on nonaccrual status and a corresponding charge-off is recorded if the re-underwriting did not include an evaluation of the borrower's ability to repay or we believe it is probable that principal and interest contractually due under the modified terms of the agreement will not be collectible. Our loans are considered past due when contractually required principal or interest payments have not been made on the due dates. LOAN CHARGE-OFF POLICIES For commercial loans, we generally fully charge off or charge down to net realizable value (fair value of collateral, less estimated costs to sell) for loans secured by collateral when: • management judges the loan to be uncollectible; • repayment is deemed to be protracted beyond reasonable time frames; • the loan has been classified as a loss by either our internal loan review process or our banking regulatory agencies; • the customer has filed bankruptcy and the loss becomes evident owing to a lack of assets; • the loan is 180 days past due unless both well-secured and in the process of collection; or • the loan is probable of foreclosure, and we have received an appraisal of less than the recorded loan balance. For consumer loans, we fully charge off or charge down to net realizable value when deemed uncollectible due to bankruptcy or other factors, or no later than reaching a defined number of days past due, as follows: • Residential mortgage loans – We generally charge down to net realizable value when the loan is 180 days past due and fully charge-off when the loan exceeds extended delinquency dates. • Auto loans – We generally fully charge off when the loan is 120 days past due. • Credit card loans – We generally fully charge off when the loan is 180 days past due. • Unsecured loans – We generally fully charge off when the loan is 120 days past due. • Unsecured lines – We generally fully charge off when the loan is 180 days past due. • Other secured loans – We generally fully or partially charge down to net realizable value when the loan is 120 days past due. TROUBLED DEBT RESTRUCTURINGS In situations where, for economic or legal reasons related to a borrower’s financial difficulties, we grant a concession for other than an insignificant period of time to the borrower that we would not otherwise consider, the related loan is classified as a troubled debt restructuring (TDR). These modified terms may include interest rate reductions, principal forgiveness, term extensions, payment forbearance and other actions intended to minimize our economic loss and to avoid foreclosure or repossession of the collateral, if applicable. For modifications where we forgive principal, the entire amount of such principal forgiveness is immediately charged off. If the underwriting for a TDR modification did not include an evaluation of the borrower's ability to repay, the loan is deemed collateral dependent. Other than resolutions such as foreclosures, sales and transfers to held-for-sale, we may remove loans held for investment from TDR classification, but only if they have been refinanced or restructured at market terms and qualify as a new loan. TROUBLED DEBT RESTRUCTURINGS AND OTHER RELIEF RELATED TO COVID-19 The Coronavirus, Aid, Relief, and Economic Security Act (the CARES Act) and the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised) issued by federal regulators in April 2020 (the Interagency Statement) provide optional, temporary relief from accounting for certain loan modifications as TDRs. Based on guidance in the CARES Act and Interagency Statement, modifications related to the adverse effects of Coronavirus Disease 2019 (COVID-19) that meet certain criteria are exempt from TDR classification. Additionally, we elected to apply the lease modification relief provided by the FASB for leases accounted for under ASC 842, Leases , that were modified due to COVID-19 and met certain criteria so as to not require a new lease classification test upon modification. During 2021, we continued to apply the TDR relief provided by the CARES Act and Interagency Statement for eligible COVID-related residential mortgage loan modifications. The TDR relief provided by the CARES Act guidance is no longer available after January 1, 2022; however, certain COVID-related lending accommodations may continue to be eligible for TDR relief under the Interagency Statement. For COVID-related modifications in the form of payment deferrals or payment forbearance, delinquency status will not advance and loans that were accruing at the time the relief is provided will generally not be placed on nonaccrual status during the deferral period. Interest accrued during payment deferrals or payment forbearance may be included in the principal balance of the loans and charge-offs will generally be based on delinquency status after the loan exits the deferral or forbearance period. FORECLOSED ASSETS Foreclosed asset

Trading Activities

Trading Activities	12 Months Ended
	Dec. 31, 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) Dec 31, Dec 31, Trading assets: Debt securities $ 88,265 75,095 Equity securities 27,476 23,032 Loans held for sale 3,242 1,015 Gross trading derivative assets 48,325 58,767 Netting (1) (28,146) (34,301) Total trading derivative assets 20,179 24,466 Total trading assets 139,162 123,608 Trading liabilities: Short sale 20,685 22,441 Gross trading derivative liabilities 42,449 53,285 Netting (1) (33,978) (39,444) Total trading derivative liabilities 8,471 13,841 Total trading liabilities $ 29,156 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 Year ended December 31, (in millions) 2021 2020 2019 Interest income: Debt securities $ 2,086 2,530 3,130 Equity securities 441 366 579 Loans held for sale 40 30 78 Total interest income 2,567 2,926 3,787 Less: Interest expense 405 442 525 Net interest income 2,162 2,484 3,262 Net gains (losses) from trading activities (1): Debt securities (1,796) 2,697 1,053 Equity securities 4,491 (630) 4,795 Loans held for sale 54 28 12 Derivatives (2) (2,465) (923) (4,867) Total net gains from trading activities 284 1,172 993 Total trading-related net interest and noninterest income $ 2,446 3,656 4,255 (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	12 Months Ended
	Dec. 31, 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 (Premises, Equipment and Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. The interest income reversed for the years ended 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 December 31, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 39,668 185 (192) 39,661 Non-U.S. government securities 71 — — 71 Securities of U.S. states and political subdivisions (2) 16,618 350 (51) 16,917 Federal agency mortgage-backed securities 104,661 1,807 (582) 105,886 Non-agency mortgage-backed securities (3) 4,515 32 (15) 4,532 Collateralized loan obligations 5,713 2 (7) 5,708 Other debt securities 4,217 259 (7) 4,469 Total available-for-sale debt securities 175,463 2,635 (854) 177,244 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 16,544 599 (318) 16,825 Securities of U.S. states and political subdivisions 32,689 847 (61) 33,475 Federal agency mortgage-backed securities 188,909 1,882 (2,807) 187,984 Non-agency mortgage-backed securities (3) 1,082 31 (18) 1,095 Collateralized loan obligations 31,067 194 (2) 31,259 Other debt securities 1,731 17 — 1,748 Total held-to-maturity debt securities 272,022 3,570 (3,206) 272,386 Total $ 447,485 6,205 (4,060) 449,630 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 (3) 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 $ 421,253 11,913 (467) 432,699 (1) Represents amortized cost of the securities, net of the ACL of $8 million and $28 million related to AFS debt securities and $96 million and $41 million related to HTM debt securities at December 31, 2021 and 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 December 31, 2021, and $5.0 billion at December 31, 2020. (3) Predominantly consists of commercial mortgage-backed securities at both December 31, 2021 and 2020. 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 Year ended December 31, (in millions) 2021 2020 2019 Purchases of held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies $ — 3,016 757 Securities of U.S. states and political subdivisions 5,198 1,906 1,583 Federal agency mortgage-backed securities 76,010 51,320 6,610 Non-agency mortgage-backed securities 235 126 288 Collateralized loan obligations 9,379 688 — Total purchases of held-to-maturity debt securities 90,822 57,056 9,238 Transfers from available-for-sale debt securities to held-to-maturity debt securities: Securities of U.S. states and political subdivisions 2,954 10,721 5,912 Federal agency mortgage-backed securities 41,298 5,522 7,921 Collateralized loan obligations 10,003 15,572 — Other debt securities 1,738 — — Total transfers from available-for-sale debt securities to held-to-maturity debt securities $ 55,993 31,815 13,833 (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 Year ended December 31, (in millions) 2021 2020 2019 Interest income (1): Available-for-sale $ 2,808 4,992 8,092 Held-to-maturity 4,359 3,712 3,733 Total interest income 7,167 8,704 11,825 Provision for credit losses (2): Available-for-sale (2) 89 — Held-to-maturity 54 35 — Total provision for credit losses 52 124 — Realized gains and losses (3): Gross realized gains 571 931 227 Gross realized losses (10) (43) (24) Impairment write-downs (8) (15) (63) Net realized gains $ 553 873 140 (1) Excludes interest income from trading debt securities, which is disclosed in Note 2 (Trading Activities). (2) Prior to our adoption of CECL on January 1, 2020, the provision for credit losses from debt securities was not applicable and is therefore presented as $0 for 2019. (3) Realized gains and losses relate to AFS debt securities. There were no realized gains or losses from HTM debt securities in all periods presented. Credit Quality We monitor credit quality of debt securities by evaluating various attributes and utilize such information in our evaluation of the appropriateness of the ACL for debt securities. The credit quality indicators that we most closely monitor include credit ratings and delinquency status and are based on information as of our financial statement date. CREDIT RATINGS Credit ratings express opinions about the credit quality of a debt security. We determine the credit rating of a security according to the lowest credit rating made available by national recognized statistical rating organizations (NRSROs). Debt securities rated investment grade, that is those with ratings similar to BBB-/Baa3 or above, as defined by NRSROs, are generally considered by the rating agencies and market participants to be low credit risk. Conversely, debt securities rated below investment grade, labeled as “speculative grade” by the rating agencies, are considered to be distinctively higher credit risk than investment grade debt securities. For debt securities not rated by NRSROs, we determine an internal credit grade of the debt securities (used for credit risk management purposes) equivalent to the credit ratings assigned by major credit agencies. Substantially all of our debt securities were rated by NRSROs at December 31, 2021, and December 31, 2020. Table 3.4 shows the percentage of fair value of AFS debt securities and amortized cost of HTM debt securities determined to be rated investment grade, inclusive of securities rated based on internal credit grades. Table 3.4: Investment Grade Debt Securities Available-for-Sale Held-to-Maturity ($ in millions) Fair value % investment grade Amortized cost % investment grade December 31, 2021 Total portfolio (1) $ 177,244 99 % 272,118 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (2) $ 145,547 100 % 205,453 100 % Securities of U.S. states and political subdivisions 16,917 99 32,704 100 Collateralized loan obligations (3) 5,708 100 31,128 100 All other debt securities (4) 9,072 88 2,833 64 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) 98% and 92% were rated AA- and above at December 31, 2021 and 2020, respectively. (2) Includes federal agency mortgage-backed securities. (3) 100% and 98% were rated AA- and above at December 31, 2021 and 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 December 31, 2021 and 2020. The carrying value of debt securities in nonaccrual status was insignificant at both December 31, 2021 and 2020. Charge-offs on debt securities were insignificant for the years ended December 31, 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 for the years ended December 31, 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 December 31, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (192) 24,418 — — (192) 24,418 Non-U.S. government securities — — — — — — Securities of U.S. states and political subdivisions (36) 2,308 (15) 532 (51) 2,840 Federal agency mortgage-backed securities (334) 40,695 (248) 9,464 (582) 50,159 Non-agency mortgage-backed securities (4) 1,966 (11) 543 (15) 2,509 Collateralized loan obligations (3) 1,619 (4) 1,242 (7) 2,861 Other debt securities — — (7) 624 (7) 624 Total available-for-sale debt securities $ (569) 71,006 (285) 12,405 (854) 83,411 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 this Report. 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 December 31, 2021 Available-for-sale debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 39,668 — 18,787 18,874 2,007 Fair value 39,661 — 18,739 18,768 2,154 Weighted average yield 0.79 % — 0.34 1.16 1.44 Non-U.S. government securities Amortized cost, net $ 71 3 68 — — Fair value 71 3 68 — — Weighted average yield 0.33 % 1.49 0.28 — — Securities of U.S. states and political subdivisions Amortized cost, net $ 16,618 696 2,115 5,719 8,088 Fair value 16,917 697 2,135 5,713 8,372 Weighted average yield 1.92 % 1.22 1.10 1.38 2.58 Federal agency mortgage-backed securities Amortized cost, net $ 104,661 1 219 2,665 101,776 Fair value 105,886 1 228 2,742 102,915 Weighted average yield 2.53 % 2.40 3.17 2.30 2.53 Non-agency mortgage-backed securities Amortized cost, net $ 4,515 — — 143 4,372 Fair value 4,532 — — 142 4,390 Weighted average yield 1.93 % — — 2.32 1.92 Collateralized loan obligations Amortized cost, net $ 5,713 — 23 5,212 478 Fair value 5,708 — 23 5,207 478 Weighted average yield 1.42 % — 2.22 1.41 1.45 Other debt securities Amortized cost, net $ 4,217 98 419 1,063 2,637 Fair value 4,469 97 419 1,065 2,888 Weighted average yield 1.61 % 1.56 1.27 1.46 1.72 Total available-for-sale debt securities Amortized cost, net $ 175,463 798 21,631 33,676 119,358 Fair value 177,244 798 21,612 33,637 121,197 Weighted average yield 2.00 % 1.26 0.46 1.34 2.47 (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 December 31, 2021 Held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 16,544 350 12,410 — 3,784 Fair value 16,825 350 12,889 — 3,586 Weighted average yield 2.17 % 1.55 2.37 — 1.57 Securities of U.S. states and political subdivisions Amortized cost, net $ 32,689 1,338 3,243 2,126 25,982 Fair value 33,475 1,350 3,307 2,191 26,627 Weighted average yield 2.10 % 2.34 1.31 2.59 2.15 Federal agency mortgage-backed securities Amortized cost, net $ 188,909 — — — 188,909 Fair value 187,984 — — — 187,984 Weighted average yield 2.15 % — — — 2.15 Non-agency mortgage-backed securities Amortized cost, net $ 1,082 15 13 29 1,025 Fair value 1,095 15 13 30 1,037 Weighted average yield 2.99 % 1.55 2.90 3.16 3.00 Collateralized loan obligations Amortized cost, net $ 31,067 — — 13,019 18,048 Fair value 31,259 — — 13,153 18,106 Weighted average yield 1.53 % — — 1.60 1.48 Other debt securities Amortized cost, net $ 1,731 — 764 967 — Fair value 1,748 — 767 981 — Weighted average yield 4.51 % — 4.13 4.81 — Total held-to-maturity debt securities Amortized cost, net $ 272,022 1,703 16,430 16,141 237,748 Fair value 272,386 1,715 16,976 16,355 237,340 Weighted average yield 2.09 % 2.17 2.24 1.92 2.09 (1) Weighted average yields displayed by maturity bucket are weighted based on amortized cost and are shown pre-tax.

Loans and Related Allowance for

Loans and Related Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Related 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 December 31, 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 (Premises, Equipment and Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. During 2021, we reversed accrued interest receivable of $44 million for our commercial portfolio segment and $175 million for our consumer portfolio segment, compared with $43 million and $195 million, respectively, for 2020. Table 4.1: Loans Outstanding December 31, (in millions) 2021 2020 Commercial: Commercial and industrial $ 350,436 318,805 Real estate mortgage 127,733 121,720 Real estate construction 20,092 21,805 Lease financing 14,859 16,087 Total commercial 513,120 478,417 Consumer: Residential mortgage – first lien 242,270 276,674 Residential mortgage – junior lien 16,618 23,286 Credit card 38,453 36,664 Auto 56,659 48,187 Other consumer 28,274 24,409 Total consumer 382,274 409,220 Total loans $ 895,394 887,637 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 December 31, (in millions) 2021 2020 Non-U.S. commercial loans: Commercial and industrial $ 77,365 63,128 Real estate mortgage 7,070 7,278 Real estate construction 1,582 1,603 Lease financing 680 629 Total non-U.S. commercial loans $ 86,697 72,638 Loan Concentrations Loan concentrations may exist when there are amounts loaned to borrowers engaged in similar activities or similar types of loans extended to a diverse group of borrowers that would cause them to be similarly impacted by economic or other conditions. Commercial and industrial loans and lease financing to borrowers in the financial institutions except banks industry represented 16% and 13% of total loans at December 31, 2021 and 2020, respectively. At December 31, 2021 and 2020, we did not have concentrations representing 10% or more of our total loan portfolio in the commercial real estate (CRE) portfolios (real estate mortgage and real estate construction) by state or property type. Residential mortgage loans to borrowers in the state of California represented 12% of total loans at both December 31, 2021 and 2020. These California loans are generally diversified among the larger metropolitan areas in California, with no single area consisting of more than 4% of total loans at both December 31, 2021 and 2020. We continuously monitor changes in real estate values and underlying economic or market conditions for all geographic areas of our residential mortgage portfolio as part of our credit risk management process. Some of our residential mortgage loans include an interest-only feature as part of the loan terms. These interest-only loans were approximately 3% of total loans at both December 31, 2021 and 2020. Substantially all of these interest-only loans at origination were considered to be prime or near prime. We do not offer option adjustable-rate mortgage (ARM) products, nor do we offer variable-rate mortgage products with fixed payment amounts, commonly referred to within the financial services industry as negative amortizing mortgage loans. 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 Year ended December 31, 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Purchases $ 380 6 386 1,310 6 1,316 Sales (2,534) (188) (2,722) (4,141) (114) (4,255) Transfers (to)/from LHFS (1,550) (55) (1,605) (1,294) (11,198) (12,492) 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 $90.2 billion at December 31, 2021. We issue commercial letters of credit to assist customers in purchasing goods or services, typically for international trade. At December 31, 2021, and December 31, 2020, we had $1.5 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 13 (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) Dec 31, Dec 31, Commercial: Commercial and industrial $ 404,292 378,167 Real estate mortgage 11,515 7,993 Real estate construction 19,943 15,650 Total commercial 435,750 401,810 Consumer: Residential mortgage – first lien 32,992 31,530 Residential mortgage – junior lien 27,447 32,820 Credit card 130,743 121,096 Other consumer 59,789 49,179 Total consumer 250,971 234,625 Total unfunded credit commitments $ 686,721 636,435 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 $5.9 billion from December 31, 2020, reflecting better portfolio credit quality and continued improvements in current and forecasted economic conditions. Table 4.5: Allowance for Credit Losses for Loans Year ended December 31, ($ in millions) 2021 2020 Balance, beginning of year $ 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 year, adjusted 19,713 9,127 Provision for credit losses (4,207) 14,005 Interest income on certain loans (3) (145) (153) Loan charge-offs: Commercial: Commercial and industrial (517) (1,440) Real estate mortgage (98) (302) Real estate construction (1) — Lease financing (46) (107) Total commercial (662) (1,849) Consumer: Residential mortgage – first lien (167) (90) Residential mortgage – junior lien (93) (88) Credit card (1,189) (1,504) Auto (497) (536) Other consumer (423) (458) Total consumer (2,369) (2,676) Total loan charge-offs (3,031) (4,525) Loan recoveries: Commercial: Commercial and industrial 299 201 Real estate mortgage 45 19 Real estate construction 1 19 Lease financing 22 20 Total commercial 367 259 Consumer: Residential mortgage – first lien 114 95 Residential mortgage – junior lien 163 143 Credit card 389 365 Auto 316 266 Other consumer 108 108 Total consumer 1,090 977 Total loan recoveries 1,457 1,236 Net loan charge-offs (1,574) (3,289) Other 1 23 Balance, end of year $ 13,788 19,713 Components: Allowance for loan losses $ 12,490 18,516 Allowance for unfunded credit commitments 1,298 1,197 Allowance for credit losses $ 13,788 19,713 Net loan charge-offs as a percentage of average total loans 0.18 % 0.35 Allowance for loan losses as a percentage of total loans 1.39 2.09 Allowance for credit losses for loans as a percentage of total loans 1.54 2.22 (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 this Report. (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 Year ended December 31, 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Balance, beginning of year $ 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 year, adjusted 11,516 8,197 19,713 3,384 5,743 9,127 Provision for credit losses (3,373) (834) (4,207) 9,770 4,235 14,005 Interest income on certain loans (3) (58) (87) (145) (61) (92) (153) Loan charge-offs (662) (2,369) (3,031) (1,849) (2,676) (4,525) Loan recoveries 367 1,090 1,457 259 977 1,236 Net loan charge-offs (295) (1,279) (1,574) (1,590) (1,699) (3,289) Other 1 — 1 13 10 23 Balance, end of year $ 7,791 5,997 13,788 11,516 8,197 19,713 (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 this Report. (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. 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 and credit quality information by origination year 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 December 31, 2021, we had $485.4 billion and $27.8 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 December 31, 2021 Commercial and industrial Pass $ 65,562 15,193 20,553 7,400 3,797 13,985 211,452 679 338,621 Criticized 1,657 884 1,237 1,256 685 551 5,528 17 11,815 Total commercial and industrial 67,219 16,077 21,790 8,656 4,482 14,536 216,980 696 350,436 Real estate mortgage Pass 38,196 15,929 19,013 12,618 7,451 16,026 5,411 3 114,647 Criticized 3,462 1,119 2,975 1,834 875 2,421 400 — 13,086 Total real estate mortgage 41,658 17,048 21,988 14,452 8,326 18,447 5,811 3 127,733 Real estate construction Pass 5,895 4,058 4,549 2,167 379 329 1,042 2 18,421 Criticized 510 266 586 234 68 7 — — 1,671 Total real estate construction 6,405 4,324 5,135 2,401 447 336 1,042 2 20,092 Lease financing Pass 4,100 3,012 2,547 1,373 838 1,805 — — 13,675 Criticized 284 246 282 184 86 102 — — 1,184 Total lease financing 4,384 3,258 2,829 1,557 924 1,907 — — 14,859 Total commercial loans $ 119,666 40,707 51,742 27,066 14,179 35,226 223,833 701 513,120 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 December 31, 2021 By delinquency status: Current-29 days past due (DPD) and still accruing $ 348,033 126,184 19,900 14,568 508,685 30-89 DPD and still accruing 1,217 285 179 143 1,824 90+ DPD and still accruing 206 29 — — 235 Nonaccrual loans 980 1,235 13 148 2,376 Total commercial loans $ 350,436 127,733 20,092 14,859 513,120 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 loan-to-value (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. 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. 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 4.9: 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 December 31, 2021 Residential mortgage – first lien By delinquency status: Current-29 DPD $ 69,994 41,527 24,887 7,660 13,734 61,576 5,248 1,673 226,299 30-59 DPD 129 27 30 12 24 418 14 29 683 60-89 DPD 10 7 2 — 3 126 7 15 170 90-119 DPD — 1 1 1 5 53 4 9 74 120-179 DPD 1 16 2 2 1 63 4 14 103 180+ DPD — 62 72 71 92 1,294 36 156 1,783 Government insured/guaranteed loans (1) 14 134 209 349 364 12,088 — — 13,158 Total residential mortgage – first lien 70,148 41,774 25,203 8,095 14,223 75,618 5,313 1,896 242,270 Residential mortgage – junior lien By delinquency status: Current-29 DPD 28 20 30 26 21 700 10,883 4,426 16,134 30-59 DPD — — — — 1 10 29 46 86 60-89 DPD — — — — — 4 10 21 35 90-119 DPD — — — 1 — 3 4 12 20 120-179 DPD — — — — — 5 7 14 26 180+ DPD — — 1 — — 40 59 217 317 Total residential mortgage – junior lien 28 20 31 27 22 762 10,992 4,736 16,618 Credit cards By delinquency status: Current-29 DPD — — — — — — 37,686 192 37,878 30-59 DPD — — — — — — 176 7 183 60-89 DPD — — — — — — 118 5 123 90-119 DPD — — — — — — 98 5 103 120-179 DPD — — — — — — 165 1 166 180+ DPD — — — — — — — — — Total credit cards — — — — — — 38,243 210 38,453 Auto By delinquency status: Current-29 DPD 29,246 12,412 8,476 3,271 1,424 714 — — 55,543 30-59 DPD 220 193 165 81 46 57 — — 762 60-89 DPD 69 67 53 25 14 21 — — 249 90-119 DPD 31 27 22 9 6 8 — — 103 120-179 DPD — 1 1 — — — — — 2 180+ DPD — — — — — — — — — Total auto 29,566 12,700 8,717 3,386 1,490 800 — — 56,659 Other consumer By delinquency status: Current-29 DPD 2,221 716 703 203 107 125 23,988 143 28,206 30-59 DPD 3 2 3 1 — 2 10 4 25 60-89 DPD 2 1 2 1 — 1 5 1 13 90-119 DPD 1 1 2 1 — — 4 — 9 120-179 DPD — — — — — — 8 2 10 180+ DPD — — — — — 1 1 9 11 Total other consumer 2,227 720 710 206 107 129 24,016 159 28,274 Total consumer loans $ 101,969 55,214 34,661 11,714 15,842 77,309 78,564 7,001 382,274 (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 $5.7 billion and $11.1 billion at December 31, 2021, and December 31, 2020, respectively. Of the $2.7 billion of consumer loans not government insured/guaranteed that are 90 days or more past due at December 31, 2021, $424 million was accruing, compared with $2.7 billion past due and $612 million accruing at December 31, 2020. We obtain Fair Isaac Corporation (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). 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. Substantially all loans not requiring a FICO score are securities-based loans originated by our retail brokerage business. 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 or above. 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 December 31, 2021 By FICO: Residential mortgage – first lien 800+ $ 35,935 27,396 16,583 5,153 9,430 37,495 2,554 469 135,015 760-799 23,645 9,814 5,412 1,464 2,485 10,509 1,073 265 54,667 720-759 7,842 3,083 1,980 642 1,137 6,277 646 238 21,845 680-719 1,986 876 645 283 501 3,682 393 206 8,572 640-679 449 233 187 89 129 1,851 188 146 3,272 600-639 101 63 46 31 41 1,035 102 89 1,508 < 600 15 13 24 19 41 1,083 114 124 1,433 No FICO available 161 162 117 65 95 1,598 243 359 2,800 Government insured/guaranteed loans (1) 14 134 209 349 364 12,088 — — 13,158 Total residential mortgage – first lien 70,148 41,774 25,203 8,095 14,223 75,618 5,313 1,896 242,270 Residential mortgage – junior lien 800+ — — — — — 188 5,512 1,481 7,181 760-799 — — — — — 110 2,154 828 3,092 720-759 — — — — — 130 1,462 790 2,382 680-719 — — — — — 118 881 633 1,632 640-679 — — — — — 65 325 338 728 600-639 — — — — — 39 160 208 407 < 600 — — — — — 43 164 215 422 No FICO available 28 20 31 27 22 69 334 243 774 Total residential mortgage – junior lien 28 20 31 27 22 762 10,992 4,736 16,618 Credit card 800+ — — — — — — 4,247 1 4,248 760-799 — — — — — — 6,053 7 6,060 720-759 — — — — — — 8,475 26 8,501 680-719 — — — — — — 9,136 50 9,186 640-679 — — — — — — 5,850 47 5,897 600-639 — — — — — — 2,298 31 2,329 < 600 — — — — — — 2,067 47 2,114 No FICO available — — — — — — 117 1 118 Total credit card — — — — — — 38,243 210 38,453 Auto 800+ 4,688 1,983 1,680 690 318 108 — — 9,467 760-799 4,967 2,123 1,586 586 234 87 — — 9,583 720-759 4,789 2,104 1,503 583 241 106 — — 9,326 680-719 5,005 2,282 1,441 526 218 111 — — 9,583 640-679 4,611 1,824 1,025 369 160 99 — — 8,088 600-639 3,118 1,114 617 243 117 92 — — 5,301 < 600 2,372 1,236 853 376 193 187 — — 5,217 No FICO available 16 34 12 13 9 10 — — 94 Total auto 29,566 12,700 8,717 3,386 1,490 800 — — 56,659 Other consumer 800+ 450 162 128 34 8 47 1,343 22 2,194 760-799 502 147 117 33 7 22 819 19 1,666 720-759 461 134 115 38 9 18 714 22 1,511 680-719 349 95 99 37 9 15 630 22 1,256 640-679 170 44 55 21 6 8 328 17 649 600-639 42 13 19 9 3 4 117 9 216 < 600 18 12 22 11 3 5 114 12 197 No FICO available 235 113 155 23 62 10 1,236 36 1,870 FICO not required — — — — — — 18,715 — 18,715 Total other consumer 2,227 720 710 206 107 129 24,016 159 28,274 Total consumer loans $ 101,969 55,214 34,661 11,714 15,842 77,309 78,564 7,001 382,274 (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. Combined LTV (CLTV) refers to the combination of first lien mortgage and junior lien mortgage (including unused line amounts for credit line products) ratios. We obtain LTVs and CLTVs 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. Generally, we obtain available LTVs and CLTVs on a quarterly basis. Certain loans do not have an LTV or CLTV due to a lack of industry data availability and portfolios acquired from or serviced by other institutions. Table 4.11 shows the most updated LTV and CLTV distribution of the residential mortgage – first lien and residential mortgage – junior lien loan portfolios. 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 December 31, 2021 Residential mortgage – first lien By LTV: 0-60% $ 26,618 22,882 16,063 5,310 11,030 57,880 4,348 1,644 145,775 60.01-80% 42,893 18,188 8,356 2,234 2,647 5,017 674 188 80,197 80.01-100% 486 437 474 147 134 339 157 42 2,216 100.01-120% (1) 10 31 24 11 7 48 33 8 172 > 120% (1) 5 10 10 4 3 35 14 3 84 No LTV available 122 92 67 40 38 211 87 11 668 Government insured/guaranteed loans (2) 14 134 209 349 364 12,088 — — 13,158 Total residential mortgage – first lien 70,148 41,774 25,203 8,095 14,223 75,618 5,313 1,896 242,270 Residential mortgage – junior lien By CLTV: 0-60% — — — — — 475 7,949 3,588 12,012 60.01-80% — — — — — 172 2,329 823 3,324 80.01-100% — — — — — 55 554 241 850 100.01-120% (1) — — — — — 13 104 42 159 > 120% (1) — — — — — 3 35 13 51 No CLTV available 28 20 31 27 22 44 21 29 222 Total residential mortgage – junior lien 28 20 31 27 22 762 10,992 4,736 16,618 Total $ 70,176 41,794 25,234 8,122 14,245 76,380 16,305 6,632 258,888 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% (1) — — — — — 59 376 156 591 > 120% (1) — — — — — 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

Leasing Activity

Leasing Activity	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leasing Activity	Note 5: Leasing Activity The information below provides a summary of our leasing activities as a lessor and lessee. As a Lessor Table 5.1 presents the composition of our leasing revenue and Table 5.2 provides the components of our investment in lease financing. Noninterest income on leases, included 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 $867 million, $1.0 billion, and $1.2 billion for the years ended December 31, 2021, 2020 and 2019, respectively. In 2021, we observed that a decline in the market led to continued weakening demand for certain rail cars used for the transportation of coal products. We expect that both utilization and rental rates for these leased rail cars may remain low in future periods and, therefore, we recognized an impairment charge related to these leased rail cars of $268 million in fourth quarter 2021 in other noninterest income. The current fair value of the leased assets was determined based upon third-party market appraisals. We believe no other classes of rail cars were impaired as of December 31, 2021. Additional impairment may result in the future based on changing economic and market conditions affecting the long-term demand and utility of specific types of rail cars. Our rail car leasing business is in Corporate for our operating segment disclosures. For additional information on the accounting for impairment of operating lease assets, see Note 1 (Summary of Significant Accounting Policies). Table 5.1: Leasing Revenue Year ended December 31, (in millions) 2021 2020 2019 Interest income on lease financing (1) $ 683 853 941 Other lease revenues: Variable revenues on lease financing 101 107 98 Fixed revenues on operating leases 995 1,169 1,393 Variable revenues on operating leases 64 47 66 Other lease-related revenues (2) (164) (78) 57 Noninterest income on leases 996 1,245 1,614 Total leasing revenue $ 1,679 2,098 2,555 (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) Includes net gains (losses) on disposition of assets leased under operating leases or lease financings, and impairment charges. Table 5.2: Investment in Lease Financing (in millions) Dec 31, 2021 Dec 31, 2020 Lease receivables $ 12,756 14,210 Residual asset values 3,721 3,810 Unearned income (1,618) (1,933) Lease financing $ 14,859 16,087 Our net investment in financing and sales-type leases included $1.0 billion and $1.7 billion of leveraged leases at December 31, 2021 and 2020, respectively. As shown in Table 7.2, included in Note 7 (Premises, Equipment and Other Assets), we had $6.2 billion and $7.4 billion in operating lease assets at December 31, 2021 and 2020, respectively, which was net of $3.1 billion of accumulated depreciation for both periods. Depreciation expense for the operating lease assets was $604 million, $755 million and $848 million in 2021, 2020 and 2019, respectively. Table 5.3 presents future lease payments owed by our lessees. Table 5.3: Maturities of Lease Receivables December 31, 2021 (in millions) Direct financing and sales- type leases Operating leases 2022 $ 4,465 546 2023 3,194 394 2024 2,077 277 2025 1,222 187 2026 588 100 Thereafter 1,210 171 Total lease receivables $ 12,756 1,675 As a Lessee Substantially all of our leases are operating leases. Table 5.4 presents balances for our operating leases. Table 5.4: Operating Lease Right-of-Use (ROU) Assets and Lease Liabilities (in millions) Dec 31, 2021 Dec 31, 2020 ROU assets $ 3,805 4,306 Lease liabilities 4,476 4,962 Table 5.5 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 5.5: Lease Costs Year ended December 31, (in millions) 2021 2020 2019 Fixed lease expense – operating leases $ 1,048 1,149 1,212 Variable lease expense 289 299 314 Other (1) (93) (77) (68) Total lease costs $ 1,244 1,371 1,458 (1) Predominantly includes gains recognized from sale leaseback transactions and sublease rental income. Table 5.6 provides the future lease payments under operating leases as well as information on the remaining average lease term and discount rate as of December 31, 2021. Table 5.6: Lease Payments on Operating Leases (in millions, except for weighted averages) Dec 31, 2021 2022 $ 948 2023 952 2024 793 2025 609 2026 471 Thereafter 1,111 Total lease payments 4,884 Less: imputed interest 408 Total operating lease liabilities $ 4,476 Weighted average remaining lease term (in years) 6.5 Weighted average discount rate 2.6 %

Equity Securities

Equity Securities	12 Months Ended
	Dec. 31, 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) Dec 31, Dec 31, Held for trading at fair value: Marketable equity securities (1) $ 27,476 23,032 Not held for trading: Fair value: Marketable equity securities 2,578 1,564 Nonmarketable equity securities (2) 9,044 9,413 Total equity securities at fair value 11,622 10,977 Equity method: Private equity 3,077 2,960 Tax-advantaged renewable energy 4,740 3,481 New market tax credit and other 379 409 Total equity method 8,196 6,850 Other methods: Low-income housing tax credit investments 12,314 11,353 Private equity (3) 9,694 4,208 Federal Reserve Bank stock and other at cost (4) 3,584 3,588 Total equity securities not held for trading 45,410 36,976 Total equity securities $ 72,886 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) Represents nonmarketable equity securities accounted for under the measurement alternative, which were predominantly securities associated with our affiliated venture capital business. (4) Substantially all relates to investments in Federal Reserve Bank stock at both December 31, 2021, and December 31, 2020. Realized Gains and Losses Not Held for Trading Table 6.2 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 6.2: Net Gains (Losses) from Equity Securities Not Held for Trading Year ended December 31, (in millions) 2021 2020 2019 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ (202) 63 1,067 Nonmarketable equity securities (188) 1,414 2,413 Total equity securities carried at fair value (390) 1,477 3,480 Net gains (losses) from nonmarketable equity securities not carried at fair value (1): Impairment write-downs (121) (1,655) (245) Net unrealized gains (2)(3) 4,862 1,651 567 Net realized gains on sale (3) 1,581 359 1,161 Total nonmarketable equity securities not carried at fair value 6,322 355 1,483 Net gains (losses) from economic hedge derivatives 495 (1,167) (2,120) Total net gains (losses) from equity securities not held for trading $ 6,427 665 2,843 (1) Includes impairment write-downs, net unrealized gains, 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 unrealized gains (losses) due to observable price changes from equity securities accounted for under the measurement alternative. (3) During the year ended December 31, 2021, we recognized $442 million of gains (including $293 million of unrealized gains) related to the partial sale of a nonmarketable equity investment to an unrelated third-party that resulted in the deconsolidation of a consolidated portfolio company. Our retained investment in nonmarketable equity securities of the formerly consolidated portfolio company was remeasured to fair value. For information about the technique and inputs used in the remeasurement, see Note 17 (Fair Values of Assets and Liabilities). Measurement Alternative Table 6.3 provides additional information about the impairment write-downs and observable price changes from nonmarketable equity securities accounted for under the measurement alternative. Gains and losses related to these adjustments are also included in Table 6.2. Table 6.3: Net Gains (Losses) from Measurement Alternative Equity Securities Year ended December 31, (in millions) 2021 2020 2019 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 4,569 1,651 584 Gross unrealized losses due to observable price changes — — (17) Impairment write-downs (109) (954) (116) Realized net gains from sale 456 38 163 Total net gains recognized during the period $ 4,916 735 614 Table 6.4 presents cumulative carrying value adjustments to nonmarketable equity securities accounted for under the measurement alternative that were still held at the end of each reporting period presented. Table 6.4: Measurement Alternative Cumulative Gains (Losses) Year ended December 31, (in millions) 2021 2020 2019 Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 6,278 2,356 973 Gross unrealized losses due to observable price changes (3) (25) (42) Impairment write-downs (821) (969) (134) 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 6.5 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 $4.9 billion at December 31, 2021, and $4.2 billion at December 31, 2020. This liability for unfunded commitments is included in long-term debt on our consolidated balance sheet. Table 6.5: LIHTC Investments (1) Year ended December 31, (in millions) 2021 2020 2019 Proportional amortization of investments $ 1,545 1,407 1,276 Tax credits and other tax benefits (1,783) (1,639) (1,490) Net expense/(benefit) recognized within income tax expense $ (238) (232) (214) (1) 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).

Premises, Equipment and Other A

Premises, Equipment and Other Assets	12 Months Ended
	Dec. 31, 2021
Premises, Equipment And Other Assets [Abstract]
Premises, Equipment and Other Assets	Note 7: Premises, Equipment and Other Assets Table 7.1 presents the components of premises and equipment. Table 7.1: Premises and Equipment (in millions) Dec 31, Dec 31, Land $ 1,759 1,808 Buildings 9,442 9,504 Furniture and equipment 7,420 7,449 Leasehold improvements 2,597 2,597 Finance lease ROU assets 32 32 Total premises and equipment 21,250 21,390 Less: Accumulated depreciation and amortization 12,679 12,495 Net book value, premises and equipment $ 8,571 8,895 Depreciation and amortization expense for premises and equipment was $1.4 billion in 2021, 2020 and 2019. Dispositions of premises and equipment resulted in net gains of $74 million, $71 million and $82 million in 2021, 2020 and 2019, respectively, included in other noninterest expense. Table 7.2 presents the components of other assets. Table 7.2: Other Assets (in millions) Dec 31, 2021 Dec 31, 2020 Corporate/bank-owned life insurance $ 20,619 20,380 Accounts receivable (1) 20,831 38,116 Interest receivable: AFS and HTM debt securities 1,360 1,368 Loans 1,950 2,838 Trading and other 305 415 Operating lease assets (lessor) 6,182 7,391 Operating lease ROU assets (lessee) 3,805 4,306 Customer relationship and other amortized intangibles 211 328 Foreclosed assets 112 159 Due from customers on acceptances 155 268 Other (2) 11,729 11,768 Total other assets $ 67,259 87,337 (1) Primarily includes derivatives clearinghouse receivables, trade date receivables, and servicer advances. (2) Primarily includes income tax receivables, prepaid expenses, and private equity and venture capital investments in consolidated portfolio companies.

Securitizations and Variable In

Securitizations and Variable Interest Entities	12 Months Ended
	Dec. 31, 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. During the years ended December 31, 2021, 2020 and 2019, we repurchased loans of $4.6 billion, $30.3 billion, and $6.3 billion, respectively, which predominantly represented repurchases of government insured loans. We recorded assets and related liabilities of $107 million and $176 million at December 31, 2021 and 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 December 31, 2021 and 2020, our liability for these repurchase and recourse arrangements was $173 million and $221 million, respectively, and the maximum exposure to loss was $13.3 billion and $13.7 billion, respectively. Off-balance sheet mortgage loans sold or secu ritized presented in Table 8.3 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. 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. Substantially all transfers were related to residential mortgage securitizations with the GSEs or GNMA and resulted in no gain or loss because the loans are already measured at fair value on a recurring basis. Additionally, we may transfer certain government insured loans that we previously repurchased. These loans are carried at the lower of cost or market, and we recognize gains on such transfers when the market value is greater than the carrying value of the loan when it is sold. Table 8.1: Transfers with Continuing Involvement Year ended December 31, 2021 2020 2019 (in millions) Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Assets sold $ 157,063 18,247 177,441 11,744 142,469 18,191 Proceeds from transfer (1) 157,852 18,563 177,478 12,034 142,535 18,521 Net gains (losses) on sale 789 316 37 290 66 330 Continuing involvement (2): Servicing rights recognized $ 1,636 166 1,808 161 1,896 161 Securities recognized (3) 23,188 173 31,567 112 — 289 Loans recognized 926 — — — — — (1) Represents cash proceeds and the fair value of non-cash beneficial interests recognized at securitization settlement. (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 $40.7 billion, $37.6 billion, and $41.9 billion, during the years ended December 31, 2021, 2020 and 2019, respectively. In the normal course of business we purchase certain non-agency securities at initial securitization or subsequently in the secondary market, which we hold for investment. We also provide seller financing in the form of loans. During the years ended December 31, 2021, 2020 and 2019, we received cash flows of $686 million, $198 million, and $275 million, respectively, related to principal and interest payments on these securities and loans, which exclude cash flows related to trading activities and to the sale of our student loan portfolio. Table 8.2 presents the key weighted-average assumptions we used to initially measure residential MSRs recognized during the periods presented. Table 8.2: Residential Mortgage Servicing Rights Year ended December 31, 2021 2020 2019 Prepayment rate (1) 13.7 % 15.4 12.8 Discount rate 5.9 6.5 7.5 Cost to service ($ per loan) $ 91 96 101 (1) 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. See Note 17 (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 year ended December 31, 2021, we sold $9.5 billion of student loans, servicing-released. For the same period, we received $9.9 billion in proceeds from the sales and recognized $355 million of gains, which are included in other noninterest income on our consolidated statement of income. In connection with the sales, we provided $3.8 billion of collateralized loan financing to a third-party sponsored VIE, and received cash flows of $3.8 billion which fully repaid these loans. 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 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. We transferred $39.6 billion, $77.2 billion, and $27.9 billion of securities to re-securitization VIEs during the years ended December 31, 2021, 2020 and 2019, respectively. These amounts are not included in Table 8.1. Related total VIE assets were $117.7 billion and $130.4 billion at December 31, 2021 and 2020, respectively. As of December 31, 2021 and 2020 we held $817 million and $1.5 billion of securities, respectively, including $607 million and $1.1 billion related to resecuritizations transacted during the years ended December 31, 2021 and 2020, respectively. Loans Serviced for Others Table 8.3 presents information about loans that we sold or securitized in which we have ongoing involvement as servicer. These are primarily residential mortgage loans sold to the GSEs or GNMA. Delinquent loans include loans 90 days or more past due and loans in bankruptcy, regardless of delinquency status. For loans sold or securitized where servicing is our only form of continuing involvement, we 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 8.3: Loans Serviced for Others Net charge-offs (2) Total loans Delinquent loans and foreclosed assets (1) Year ended December 31, (in millions) Dec 31, 2021 Dec 31, 2020 Dec 31, 2021 Dec 31, 2020 2021 2020 Commercial $ 120,962 114,134 1,923 2,217 143 136 Residential 690,813 818,886 10,714 29,962 22 78 Total off-balance sheet sold or securitized loans (3) $ 811,775 933,020 12,637 32,179 165 214 (1) Includes $403 million and $394 million of commercial foreclosed assets and $129 million and $204 million of residential foreclosed assets at December 31, 2021 and 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 December 31, 2021 and 2020, the table includes total loans of $736.8 billion and $864.8 billion, delinquent loans of $10.2 billion and $28.5 billion, and foreclosed assets of $100 million and $152 million, respectively, for FNMA, FHLMC and GNMA. Transactions with Unconsolidated VIEs MORTGAGE LOAN SECURITIZATIONS Table 8.4 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 8.4 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 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 may transfer purchased industrial development bonds and GSE credit enhancements to VIEs in exchange for beneficial interests. We may also acquire such beneficial interests in transactions where we do not act as a transferor. 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 certain VIEs as we controlled the key decisions. During first quarter 2021, we amended those 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 and mortgage 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 8.4 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 8.4, “Total VIE assets” represents the remaining principal balance of assets held by unconsolidated VIEs using the most current information available. “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 8.4: Unconsolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt Equity securities All other Debt and other liabilities Net assets December 31, 2021 Nonconforming mortgage loan securitizations $ 146,482 — 2,620 — 694 — 3,314 Tax credit structures 44,528 1,904 — 12,322 — (4,941) 9,285 Commercial real estate loans 5,489 5,481 — — 8 — 5,489 Other 3,196 531 3 62 49 (1) 644 Total $ 199,695 7,916 2,623 12,384 751 (4,942) 18,732 Maximum exposure to loss Loans Debt Equity securities All other Debt, guarantees, Total exposure Nonconforming mortgage loan securitizations $ — 2,620 — 694 27 3,341 Tax credit structures 1,904 — 12,322 — 3,730 17,956 Commercial real estate loans 5,481 — — 8 710 6,199 Other 531 3 62 49 229 874 Total $ 7,916 2,623 12,384 751 4,696 28,370 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 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 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 $352 million and $310 million of securities classified as trading at December 31, 2021 and 2020, respectively. (2) All other assets includes mortgage servicing rights, derivative assets, and other assets (predominantly servicing advances). 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 8.5. 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 8.5 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.” 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 8.5: Transactions with Consolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt All other Long-term debt All other liabilities (3) December 31, 2021 Commercial and industrial loans and leases $ 7,013 4,099 — 231 — (188) Commercial real estate loans (4) — — — — — — Other 516 377 71 3 (149) (71) Total consolidated VIEs $ 7,529 4,476 71 234 (149) (259) 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 $269 million of securities classified as trading at December 31, 2020. There were no securities classified as trading at December 31, 2021. (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. See Note 12 (Long-Term Debt) and Note 18 (Preferred Stock) for additional information about trust preferred securities.

Mortgage Banking Activities

Mortgage Banking Activities	12 Months Ended
	Dec. 31, 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 for both periods, with an estimated fair value of $1.5 billion and $1.4 billion at December 31, 2021 and 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 Year ended December 31, (in millions) 2021 2020 2019 Fair value, beginning of period $ 6,125 11,517 14,649 Servicing from securitizations or asset transfers (1) 1,645 1,708 1,933 Sales and other (2) (8) (32) (286) Net additions 1,637 1,676 1,647 Changes in fair value: Due to valuation inputs or assumptions: Mortgage interest rates (3) 1,625 (3,946) (2,406) Servicing and foreclosure costs (4) (9) (175) 48 Discount rates (56) 27 145 Prepayment estimates and other (5) (390) (599) (356) Net changes in valuation inputs or assumptions 1,170 (4,693) (2,569) Changes due to collection/realization of expected cash flows (6) (2,012) (2,375) (2,210) Total changes in fair value (842) (7,068) (4,779) Fair value, end of period $ 6,920 6,125 11,517 (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 rate 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 rate 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 17 (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) Dec 31, 2021 Dec 31, 2020 Fair value of interests held $ 6,920 6,125 Expected weighted-average life (in years) 4.7 3.7 Key economic assumptions: Prepayment rate assumption (1) 14.7 % 19.9 Impact on fair value from 10% adverse change $ 356 434 Impact on fair value from 25% adverse change 834 1,002 Discount rate assumption 6.4 % 5.8 Impact on fair value from 100 basis point increase $ 276 229 Impact on fair value from 200 basis point increase 529 440 Cost to service assumption ($ per loan) 106 130 Impact on fair value from 10% adverse change 165 181 Impact on fair value from 25% adverse change 411 454 (1) 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. 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) Dec 31, 2021 Dec 31, 2020 Residential mortgage servicing: Serviced and subserviced for others $ 718 859 Owned loans serviced 276 323 Total residential servicing 994 1,182 Commercial mortgage servicing: Serviced and subserviced for others 597 583 Owned loans serviced 130 123 Total commercial servicing 727 706 Total managed servicing portfolio $ 1,721 1,888 Total serviced for others, excluding subserviced for others $ 1,304 1,431 MSRs as a percentage of loans serviced for others 0.63 % 0.52 Weighted average note rate (mortgage loans serviced for others) 3.82 4.03 At December 31, 2021, and December 31, 2020, we had servicer advances, net of an allowance for uncollectible amounts, of $3.2 billion and $3.4 billion, respectively. 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 Year ended December 31, (in millions) 2021 2020 2019 Servicing fees: Contractually specified servicing fees, late charges and ancillary fees $ 2,801 3,250 3,660 Unreimbursed direct servicing costs (1) (332) (620) (403) Servicing fees 2,469 2,630 3,257 Amortization (2) (225) (308) (274) Changes due to collection/realization of expected cash flows (3) (A) (2,012) (2,375) (2,210) Net servicing fees 232 (53) 773 Changes in fair value of MSRs due to valuation inputs or assumptions (4) (B) 1,170 (4,693) (2,569) Net derivative gains (losses) from economic hedges (5) (1,208) 4,607 2,318 Market-related valuation changes to MSRs, net of hedge results (38) (86) (251) Total net servicing income 194 (139) 522 Net gains on mortgage loan originations/sales (6) 4,762 3,632 2,193 Total mortgage banking noninterest income 4,956 3,493 2,715 Total changes in fair value of MSRs carried at fair value (A)+(B) $ (842) (7,068) (4,779) (1) Includes costs associated with foreclosures, unreimbursed interest advances to investors, and other interest costs. (2) Includes a $41 million reversal of impairment recorded in 2021 on the commercial amortized MSRs. Also, includes a $37 million impairment recorded in 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 16 (Derivatives) for additional discussion and detail on economic hedges. (6) Includes net gains (losses) of $1.2 billion, $(1.8) billion and $(141) million at December 31, 2021, 2020 and 2019, respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 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 December 31, 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) $ 4,794 (3,525) 1,269 4,612 (3,300) 1,312 Customer relationship and other intangibles 842 (631) 211 879 (551) 328 Total amortized intangible assets $ 5,636 (4,156) 1,480 5,491 (3,851) 1,640 Unamortized intangible assets: MSRs (carried at fair value) $ 6,920 6,125 Goodwill 25,180 26,392 Trademark 14 14 (1) Balances are excluded commencing in the period following full amortization. (2) Includes a $4 million and $37 million valuation allowance recorded for amortized MSRs at December 31, 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 December 31, 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 Year ended December 31, 2021 (actual) $ 225 80 305 Estimate for year ended December 31, 2022 $ 246 59 305 2023 213 51 264 2024 187 41 228 2025 163 33 196 2026 130 27 157 In 2021, we announced agreements to sell Wells Fargo Asset Management (WFAM) and our Corporate Trust Services business and transferred the associated goodwill from the Wealth and Investment Management operating segment and the Commercial Banking operating segment, respectively, to Corporate. In fourth quarter 2021, we completed the sales of WFAM and our Corporate Trust Services business. We recorded net gains of $674 million and $269 million, respectively, in noninterest income from these sales, which are subject to certain post-closing adjustments and earn-out provisions. Also in 2021, we removed goodwill in connection with our sales of our 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 Wholesale Banking Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Consolidated Company December 31, 2019 $ 16,685 8,429 — — 1,276 — 26,390 Foreign currency translation — — 2 — — — 2 Transfers of goodwill (267) (8,429) 3,016 5,375 — 305 — December 31, 2020 $ 16,418 — 3,018 5,375 1,276 305 26,392 Foreign currency translation — — — — — — — Transfers of goodwill — — (80) — (932) 1,012 — Divestitures — — — — — (1,212) (1,212) December 31, 2021 $ 16,418 — 2,938 5,375 344 105 25,180

Deposits

Deposits	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Deposits	Note 11: Deposits Table 11.1 presents a summary of the time certificates of deposit (CDs) and other time deposits issued by domestic and non-U.S. offices in denominations in excess of $250,000. Table 11.1: Time Deposits December 31, (in millions) 2021 2020 Total domestic and Non-U.S. $ 30,012 52,807 Time deposits $250,000 or more 5,527 9,033 The contractual maturities of time deposits are presented in Table 11.2. Table 11.2: Contractual Maturities of Time Deposits (in millions) December 31, 2021 2022 $ 20,816 2023 5,427 2024 2,159 2025 582 2026 143 Thereafter 885 Total $ 30,012 Demand deposit overdrafts of $153 million and $326 million were included as loan balances at December 31, 2021 and 2020, respectively.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2021
Long-term Debt, Current and Noncurrent [Abstract]
Long-Term Debt	Note 12: Long-Term Debt We issue long-term debt denominated in multiple currencies, primarily in U.S. dollars. Our issuances have both fixed and floating interest rates. As a part of our overall interest rate risk management strategy, we often use derivatives to manage our exposure to interest rate risk. We also use derivatives to manage our exposure to foreign currency risk. As a result, substantially all of the long-term debt presented below is hedged in a fair value or cash flow hedge relationship. Table 12.1 presents a summary of our long-term debt carrying values, reflecting unamortized debt discounts and premiums, and hedge basis adjustments, where applicable. See Note 16 (Derivatives) for additional information on qualifying hedge contracts. The interest rates displayed represent the range of contractual rates in effect at December 31, 2021. These interest rates do not include the effects of any associated derivatives designated in a hedge accounting relationship. Table 12.1: Long-Term Debt December 31, 2021 2020 (in millions) Maturity date(s) Stated interest rate(s) Wells Fargo & Company (Parent only) Senior Fixed-rate notes 2022-2045 0.38-6.75% $ 62,525 84,892 Floating-rate notes 2022-2048 0.00-1.36% 5,535 13,736 FixFloat notes 2024-2051 0.81-5.01% 43,010 43,917 Structured notes (1) 5,874 8,081 Total senior debt – Parent 116,944 150,626 Subordinated Fixed-rate notes (2) 2023-2046 3.45-7.57% 27,970 29,874 Total subordinated debt – Parent 27,970 29,874 Junior subordinated Fixed-rate notes 2029-2036 5.95-7.95% 1,041 1,382 Floating-rate notes 2027 0.62-1.12% 331 330 Total junior subordinated debt – Parent (3) 1,372 1,712 Total long-term debt – Parent (2) 146,286 182,212 Wells Fargo Bank, N.A., and other bank entities (Bank) Senior Fixed-rate notes — 7,644 Floating-rate notes 2038-2053 0.00% 116 3,747 FixFloat notes — 2,841 Fixed-rate advances – Federal Home Loan Bank (FHLB) — 31 Structured notes (1) 307 792 Finance leases 2022-2029 1.13-17.78% 26 28 Total senior debt – Bank 449 15,083 Subordinated Fixed-rate notes 2023-2038 5.25-7.74% 5,387 5,775 Total subordinated debt – Bank 5,387 5,775 Junior subordinated Floating-rate notes 2027 0.73-0.77% 388 375 Total junior subordinated debt – Bank (3) 388 375 Long-term debt issued by VIE – Floating rate 2037 0.24-0.25% 149 203 Mortgage notes and other debt (4) 2022-2059 0.24-9.03% 6,485 5,694 Total long-term debt – Bank $ 12,858 27,130 (continued on following page) (continued from previous page) December 31, 2021 2020 (in millions) Maturity date(s) Stated interest rate(s) Other consolidated subsidiaries Senior Fixed-rate notes 2023 3.46% $ 398 1,390 Structured notes (1) 1,147 2,186 Total senior debt – Other consolidated subsidiaries 1,545 3,576 Mortgage notes and other — 32 Total long-term debt – Other consolidated subsidiaries 1,545 3,608 Total long-term debt $ 160,689 212,950 (1) Included in the table are certain structured notes that have coupon or repayment terms linked to the performance of debt or equity securities, an embedded equity, commodity, or currency index, or basket of indices accounted for separately from the note as a free-standing derivative, and the maturity may be accelerated based on the value of a referenced index or security. For additional information on embedded derivatives, see the “Derivatives Not Designated as Hedging Instruments” section in Note 16 (Derivatives). In addition, a major portion consists of zero coupon notes where interest is paid as part of the final redemption amount. (2) Includes fixed-rate subordinated notes issued by the Parent at a discount of $123 million and $126 million in 2021 and 2020, respectively, and debt issuance costs of $2 million in both 2021 and 2020, to effect a modification of Wells Fargo Bank, N.A., notes. These subordinated notes are carried at their par amount on the consolidated balance sheet of the Parent presented in Note 27 (Parent-Only Financial Statements). In addition, Parent long-term debt presented in Note 27 also includes affiliate related issuance costs of $329 million and $384 million in 2021 and 2020, respectively. (3) Includes $388 million and $704 million of junior subordinated debentures held by unconsolidated wholly-owned trust preferred security VIEs at December 31, 2021 and 2020, respectively. In both 2021 and 2020, we liquidated certain of our trust preferred security VIEs. As part of these liquidations, junior subordinated debentures that were held by the trusts with a total carrying value of $332 million and $1.4 billion, respectively, were distributed to third-party investors. See Note 8 (Securitizations and Variable Interest Entities) for additional information about trust preferred security VIEs. (4) Primarily relates to unfunded commitments for LIHTC investments. For additional information, see Note 6 (Equity Securities). The aggregate carrying value of long-term debt that matures (based on contractual payment dates) as of December 31, 2021, in each of the following five years and thereafter is presented in Table 12.2. Table 12.2: Maturity of Long-Term Debt December 31, 2021 (in millions) 2022 2023 2024 2025 2026 Thereafter Total Wells Fargo & Company (Parent Only) Senior notes $ 13,050 8,045 11,871 14,554 19,173 50,251 116,944 Subordinated notes — 3,653 740 1,077 2,932 19,568 27,970 Junior subordinated notes — — — — — 1,372 1,372 Total long-term debt – Parent 13,050 11,698 12,611 15,631 22,105 71,191 146,286 Wells Fargo Bank, N.A., and other bank entities (Bank) Senior notes 28 3 3 190 86 139 449 Subordinated notes — 1,045 — 163 — 4,179 5,387 Junior subordinated notes — — — — — 388 388 Securitizations and other bank debt 2,506 1,290 955 253 125 1,505 6,634 Total long-term debt – Bank 2,534 2,338 958 606 211 6,211 12,858 Other consolidated subsidiaries Senior notes 187 500 105 423 224 106 1,545 Total long-term debt – Other consolidated subsidiaries 187 500 105 423 224 106 1,545 Total long-term debt $ 15,771 14,536 13,674 16,660 22,540 77,508 160,689 As part of our long-term and short-term borrowing arrangements, we are subject to various financial and operational covenants. Some of the agreements under which debt has been issued have provisions that may limit the merger or sale of certain subsidiary banks and the issuance of capital stock or convertible securities by certain subsidiary banks. At December 31, 2021, we were in compliance with all the covenants.

Guarantees and Other Commitment

Guarantees and Other Commitments	12 Months Ended
	Dec. 31, 2021
Guarantees [Abstract]
Guarantees and Other Commitments	Note 13: 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 13.1 shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts. Table 13.1: Guarantees – Carrying Value and Maximum Exposure to Loss Maximum exposure to loss (in millions) Carrying value of obligation (asset) Expires in one year or less Expires after one year through three years Expires after three years through five years Expires after five years Total Non-investment grade December 31, 2021 Standby letters of credit $ 119 13,816 5,260 1,572 460 21,108 6,939 Direct pay letters of credit 6 1,597 2,137 1,283 4 5,021 1,373 Written options (1) (280) 12,107 4,575 513 36 17,231 13,645 Loans and LHFS sold with recourse (2) 20 71 943 3,610 8,650 13,274 11,268 Exchange and clearing house guarantees — — — — 8,100 8,100 — Other guarantees and indemnifications (3) — 797 2 12 263 1,074 756 Total guarantees $ (135) 28,388 12,917 6,990 17,513 65,808 33,981 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 16 (Derivatives). Carrying value net asset position is a result of certain deferred premium option trades. (2) Represents recourse provided, predominantly 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 $216 million and $1.4 billion with related collateral of $2.3 billion and $1.2 billion as of December 31, 2021 and 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 13.1 do not reflect economic hedges or collateral we could use to offset or recover losses we may incur under our guarantee agreements. Accordingly, this required disclosure is not an indication of expected loss. We believe the carrying value is more representative of our exposure to loss than maximum exposure to loss. The carrying value represents the fair value of the guarantee, if any, and also includes an ACL for guarantees, if applicable. In determining the ACL for guarantees, we consider the credit risk of the related contingent obligation. 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). STANDBY LETTERS OF CREDIT We issue standby letters of credit, which include performance and financial guarantees, for customers in connection with contracts between our customers and third parties. We also originate multipurpose lending commitments under which borrowers have the option to draw on the facility in one of several forms, including as a standby letter of credit. Standby letters of credit are conditional lending commitments where we are obligated to make payment to a third party on behalf of a customer if the customer fails to meet their contractual obligations. Total maximum exposure to loss includes the portion of multipurpose lending facilities for which we have issued standby letters of credit under the commitments. DIRECT PAY LETTERS OF CREDIT We issue direct pay letters of credit to serve as credit enhancements for certain bond issuances. Beneficiaries (bond trustees) may draw upon these instruments to make scheduled principal and interest payments, redeem all outstanding bonds because a default event has occurred, or for other reasons as permitted by the agreement. WRITTEN OPTIONS We enter into certain derivative contracts that have the characteristics of a guarantee. These contracts include written put options that give the counterparty the right to sell to us an underlying instrument held by the counterparty at a specified price by a specified date. They also include certain written options that require us to make a payment for increases in fair value of assets held by the counterparty. These written option contracts generally permit or require net settlement. While these derivative transactions expose us to risk if the option is exercised, we manage this risk by entering into offsetting trades or by taking short positions in the underlying instrument. We offset market risk related to options written to customers with cash securities or other offsetting derivative transactions. Additionally, for certain of these contracts, we require the counterparty to pledge the underlying instrument as collateral for the transaction. Our ultimate obligation under written options is based on future market conditions and is only quantifiable at settlement. See Note 16 (Derivatives) for additional information regarding written derivative contracts. LOANS AND LHFS SOLD WITH RECOURSE In certain sales and securitizations of loans, including mortgage loans, we provide recourse to the buyer whereby we are required to indemnify the buyer for any loss on the loan up to par value plus accrued interest. We provide recourse, predominantly to GSEs, on loans sold under various programs and arrangements. Substantially all of these programs and arrangements require that we share in the loans’ credit exposure for their remaining life by providing recourse to the GSE, up to 33.33% of actual losses incurred on a pro-rata basis in the event of borrower default. Under the remaining recourse programs and arrangements, if certain events occur within a specified period of time from transfer date, we have to provide limited recourse to the buyer to indemnify them for losses incurred for the remaining life of the loans. The maximum exposure to loss reported in Table 13.1 represents the outstanding principal balance of the loans sold or securitized that are subject to recourse provisions or the maximum losses per the contractual agreements. However, we believe the likelihood of loss of the entire balance due to these recourse agreements is remote, and amounts paid can be recovered in whole or in part from the sale of collateral. We also provide representation and warranty guarantees on loans sold under the various recourse programs and arrangements. Our loss exposure relative to these guarantees is separately considered and provided for, as necessary, in determination of our liability for loan repurchases due to breaches of representation and warranties. EXCHANGE AND CLEARING HOUSE GUARANTEES We are members of several securities and derivatives exchanges and clearing houses, both in the U.S. and in countries outside the U.S., that we use to clear our trades and those of our customers. It is common that all members in these organizations are required to collectively guarantee the performance of other members and of the organization. Our obligations under the guarantees are generally a pro-rata share based on either a fixed amount or a multiple of the guarantee fund we are required to maintain with these organizations. Some membership rules require members to assume a pro-rata share of losses resulting from another member’s default or from non-member default losses after applying the guarantee fund. We have not recorded a liability for these arrangements as of the dates presented in Table 13.1 because we believe the likelihood of loss is remote. OTHER GUARANTEES AND INDEMNIFICATIONS We have contingent performance arrangements related to various customer relationships and lease transactions. We are required to pay the counterparties to these agreements if third parties default on certain obligations. Under certain factoring arrangements, we may be required to purchase trade receivables from third parties, if receivable debtors default on their payment obligations. We use certain third-party clearing agents to clear and settle transactions on behalf of some of our institutional brokerage customers. We indemnify the clearing agents against loss that could occur for non-performance by our customers on transactions that are not sufficiently collateralized. Transactions subject to the indemnifications may include customer obligations related to the settlement of margin accounts and short positions, such as written call options and securities borrowing transactions. We enter into other types of indemnification agreements in the ordinary course of business under which we agree to indemnify third parties against any damages, losses and expenses incurred in connection with legal and other proceedings arising from relationships or transactions with us. These relationships or transactions include those arising from service as a director or officer of the Company, underwriting agreements relating to our securities, acquisition agreements and various other business transactions or arrangements. Because the extent of our obligations under these agreements depends entirely upon the occurrence of future events, we are unable to determine our potential future liability under these agreements. We do, however, record a liability for residential mortgage loans that we expect to repurchase pursuant to various representations and warranties. 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. In 2021, we processed card network transaction volume of $1.7 trillion 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 $1.2 billion and $2.3 billion at December 31, 2021 and 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 28 (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 December 31, 2021 and 2020, we had commitments to purchase debt securities of $18 million and commitments to purchase equity securities of $2.4 billion and $3.2 billion, respectively. As part of maintaining our memberships in certain clearing organizations, we are required to stand ready to provide liquidity to sustain market clearing activity in the event unforeseen events occur or are deemed likely to occur. Certain of these obligations are guarantees of other members’ performance and accordingly are included in Table 13.1 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 $11.0 billion and $12.0 billion as of December 31, 2021 and 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	12 Months Ended
	Dec. 31, 2021
Transfers and Servicing [Abstract]
Pledged Assets and Collateral	Note 14: Pledged Assets and Collateral Pledged Assets Table 14.1 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 14.1: Pledged Assets (in millions) Dec 31, Dec 31, Related to trading activities: Repledged third-party owned debt and equity securities $ 31,087 44,765 Trading debt securities and other 14,216 19,572 Equity securities 984 470 Total pledged assets related to trading activities 46,287 64,807 Related to non-trading activities: Loans 288,698 344,220 Debt securities: Available-for-sale 65,198 57,289 Held-to-maturity 13,843 17,290 Other financial assets 1,600 230 Total pledged assets related to non-trading activities 369,339 419,029 Related to VIEs: Consolidated VIE assets 4,781 12,146 Loans eligible for repurchase from GNMA securitizations 109 179 Total pledged assets related to VIEs 4,890 12,325 Total pledged assets $ 420,516 496,161 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 14.2 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. The majority of 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 14.2, we also have balance sheet netting related to derivatives that is disclosed in Note 16 (Derivatives). Table 14.2: Offsetting – Securities Financing Activities (in millions) Dec 31, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 103,140 92,446 Gross amounts offset in consolidated balance sheet (1) (14,074) (11,513) Net amounts in consolidated balance sheet (2) 89,066 80,933 Collateral not recognized in consolidated balance sheet (3) (88,330) (80,158) Net amount (4) $ 736 775 Liabilities: Repurchase and securities lending agreements Gross amounts recognized $ 35,043 57,622 Gross amounts offset in consolidated balance sheet (1) (14,074) (11,513) Net amounts in consolidated balance sheet (5) 20,969 46,109 Collateral pledged but not netted in consolidated balance sheet (6) (20,820) (45,819) Net amount (4) $ 149 290 (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 $66.2 billion and $65.6 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at December 31, 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 $22.9 billion and $15.3 billion, at December 31, 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 December 31, 2021, and December 31, 2020, we have received total collateral with a fair value of $124.4 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 $28.8 billion and $36.1 billion at December 31, 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 December 31, 2021, and December 31, 2020, we have pledged total collateral with a fair value of $35.9 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 14.3 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 14.3: Gross Obligations by Underlying Collateral Type (in millions) Dec 31, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 14,956 22,922 Securities of U.S. States and political subdivisions 1 4 Federal agency mortgage-backed securities 3,432 15,353 Non-agency mortgage-backed securities 809 1,069 Corporate debt securities 8,899 9,944 Asset-backed securities 358 1,054 Equity securities 919 1,500 Other 409 336 Total repurchases 29,783 52,182 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 33 64 Federal agency mortgage-backed securities 17 23 Corporate debt securities 80 79 Equity securities (1) 5,050 5,189 Other 80 85 Total securities lending 5,260 5,440 Total repurchases and securities lending $ 35,043 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 14.4 provides the contractual maturities of our gross obligations under repurchase and securities lending agreements. Table 14.4: Contractual Maturities of Gross Obligations (in millions) Overnight/continuous Up to 30 days 30-90 days >90 days Total gross obligation December 31, 2021 Repurchase agreements $ 16,452 3,570 4,276 5,485 29,783 Securities lending arrangements 4,810 — — 450 5,260 Total repurchases and securities lending (1) $ 21,262 3,570 4,276 5,935 35,043 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	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Legal Actions	Note 15: 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 or other adverse consequences. 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 to or otherwise cooperate with government authorities in the conduct of investigations of other persons or industry groups. 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. There can be no assurance as to the ultimate outcome of legal actions, including the matters described below, and 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. In November 2021, the district court granted preliminary approval of an agreement pursuant to which the Company will pay $20.8 million in order to resolve the cases. 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 November 2021, the court granted final approval of an agreement pursuant to which the Company agreed to 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 were among the subjects of a shareholder derivative lawsuit in the United States District Court for the Northern District of California, which has been dismissed. In addition, federal and state government agencies, including the CFPB, have undertaken formal or informal inquiries, investigations, or examinations regarding these and other issues related to the origination, servicing, and collection of consumer auto loans, including related insurance products. As previously disclosed, the Company entered into an agreement to resolve investigations by state attorneys general. COMMERCIAL LENDING SHAREHOLDER LITIGATION In October and November 2020, plaintiffs filed two putative securities fraud class actions, which were consolidated into one lawsuit pending in the United States District Court for the Northern District of California alleging that the Company and certain of its current and former 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. COMPANY 401(K) PLAN REGULATORY INVESTIGATIONS Federal government agencies, including the United States Department of Labor, are reviewing certain transactions associated with the Employee Stock Ownership Plan feature of the Company’s 401(k) plan, including the manner in which the 401(k) plan purchased certain securities used in connection with the Company’s contributions to the 401(k) plan. 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 were also among the subjects of a shareholder derivative lawsuit filed in the United States District Court for the Northern District of California. On February 4, 2022, the district court granted the Company's motion to dismiss the shareholder derivative lawsuit. 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. 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. On September 27, 2021, the district court granted the plaintiffs’ motion for class certification in the equitable relief case. Several of the opt-out and direct action litigations have been settled while others remain pending. 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 was subsequently 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, which was approved by the district court in January 2022. 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, which was approved by the district court in January 2022. The Dore, Coordes, and Liguori cases have been voluntarily dismissed. In addition, federal and state government agencies, including the CFPB, have undertaken formal or informal inquiries or investigations regarding these and other mortgage servicing matters. On September 9, 2021, the OCC assessed a $250 million civil money penalty against the Company regarding loss mitigation activities in the Company’s Home Lending business and insufficient progress in addressing requirements under the OCC’s April 2018 consent order. In addition, on September 9, 2021, the Company entered into a consent order with the OCC requiring the Company to improve the execution, risk management, and oversight of loss mitigation activities in its Home Lending business. 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 United States Department of Justice (Department of Justice). RETAIL SALES PRACTICES MATTERS Federal and state government agencies, including the Department of Justice and the United States Securities and Exchange Commission (SEC), have undertaken formal or informal inquiries or investigations 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. 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. The Company has also entered into agreements to resolve other government agency investigations, including investigations by the state attorneys general. 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 (RMBS) 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 addition, Park Royal I LLC and Park Royal II LLC have filed complaints that were consolidated in New York state court alleging Wells Fargo Bank, N.A., as trustee, failed to take appropriate actions upon learning of defective mortgage loan documentation. 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 $2.9 billion as of December 31, 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	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Note 16: 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. Risk Management Derivatives Our asset/liability management approach to interest rate, foreign currency and certain other risks includes the use of derivatives, which are typically designated as fair value or cash flow hedges, or economic hedges. We use derivatives to help minimize significant, unplanned fluctuations in earnings, fair values of assets and liabilities, and cash flows caused by interest rate, foreign currency and other market risk volatility. This approach involves modifying the repricing characteristics of certain assets and liabilities so that changes in interest rates, foreign currency and other exposures, which may cause the hedged assets and liabilities to gain or lose fair value, do not have a significant adverse effect on the net interest margin, cash flows and earnings. In a fair value or economic hedge, the effect of change in fair value will generally be offset by the unrealized gain or loss on the derivatives linked to the hedged assets and liabilities. In a cash flow hedge, where we manage the variability of cash payments due to interest rate or foreign currency fluctuations by the effective use of derivatives linked to hedged assets and liabilities, the hedged asset or liability is not adjusted and the unrealized gain or loss on the derivative is recorded in other comprehensive income. Customer Accommodation Trading We also use various derivatives, including interest rate, commodity, equity, credit and foreign exchange contracts, as an accommodation to our customers as part of our trading businesses. These derivative transactions, which involve engaging in market-making activities or acting as an intermediary, are conducted in an effort to help customers manage their market risks. We usually offset our exposure from such derivatives by entering into other financial contracts, such as separate derivative or security transactions. These customer accommodations and any offsetting derivatives are treated as customer accommodation trading and other derivatives in our disclosures. Additionally, embedded derivatives that are required to be accounted for separately from their host contracts are included in the customer accommodation trading and other derivatives disclosures, as applicable. We mention derivative instruments within several other Notes in this Report. For additional information on Derivatives, refer to the following areas: • Note 1: Summary of Significant Accounting Policies • Note 2: Trading Activities • Note 6: Equity Securities • Note 8: Securitizations and Variable Interest Entities • Note 9: Mortgage Banking Activities • Note 12: Long-Term Debt • Note 13: Guarantees and Other Commitments • Note 14: Pledged Assets and Collateral • Note 17: Fair Values of Assets and Liabilities • Note 25: Other Comprehensive Income • Note 27: Parent-Only Financial Statements Table 16.1 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 16.1: Notional or Contractual Amounts and Fair Values of Derivatives December 31, 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 $ 153,993 2,212 327 184,090 3,212 789 Foreign exchange contracts 24,949 281 669 47,331 1,381 607 Total derivatives designated as qualifying hedging instruments 2,493 996 4,593 1,396 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts 142,234 40 41 261,159 341 344 Equity contracts 26,263 1,493 1,194 25,997 1,363 490 Foreign exchange contracts 28,192 395 88 47,106 331 1,515 Credit contracts 290 7 — 73 31 — Subtotal 1,935 1,323 2,066 2,349 Customer accommodation trading and other derivatives: Interest rate contracts 7,976,534 20,286 17,435 7,947,941 32,510 25,169 Commodity contracts 76,642 5,965 2,417 65,790 2,036 1,543 Equity contracts 321,863 16,278 17,827 280,195 17,522 21,516 Foreign exchange contracts 560,049 5,912 5,915 412,879 6,891 6,034 Credit contracts 38,318 39 43 34,329 64 58 Subtotal 48,480 43,637 59,023 54,320 Total derivatives not designated as hedging instruments 50,415 44,960 61,089 56,669 Total derivatives before netting 52,908 45,956 65,682 58,065 Netting (31,430) (36,532) (39,836) (41,556) Total $ 21,478 9,424 25,846 16,509 Table 16.2 provides information on the fair values of derivative assets and liabilities subject to enforceable master netting arrangements, 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 our consolidated balance sheet. We determine the balance sheet netting adjustments based on the terms specified within each master netting arrangement, which are determined at the counterparty level. We do not net non-cash collateral that we receive and pledge on our consolidated balance sheet. For disclosure purposes, we present “Total Derivatives, net” which 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. 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 14 (Pledged Assets and Collateral). Table 16.2: Fair Values of Derivative Assets and Liabilities December 31, 2021 December 31, 2020 (in millions) Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities Interest rate contracts Over-the-counter (OTC) $ 20,067 16,654 30,958 24,048 OTC cleared 168 192 1,156 1,099 Exchange traded 52 28 11 27 Total interest rate contracts 20,287 16,874 32,125 25,174 Commodity contracts OTC 5,040 1,249 1,498 1,009 Exchange traded 557 1,047 287 452 Total commodity contracts 5,597 2,296 1,785 1,461 Equity contracts OTC 6,132 9,730 7,747 11,068 Exchange traded 7,493 6,086 4,759 4,733 Total equity contracts 13,625 15,816 12,506 15,801 Foreign exchange contracts OTC 6,335 6,221 8,088 7,603 Total foreign exchange contracts 6,335 6,221 8,088 7,603 Credit contracts OTC 32 31 55 43 Total credit contracts 32 31 55 43 Total derivatives subject to enforceable master netting arrangements, gross 45,876 41,238 54,559 50,082 Less: Gross amounts offset Counterparty netting (1) (27,172) (27,046) (34,304) (34,106) Cash collateral netting (4,258) (9,486) (5,532) (7,450) Total derivatives subject to enforceable master netting arrangements, net 14,446 4,706 14,723 8,526 Derivatives not subject to enforceable master netting arrangements 7,032 4,718 11,123 7,983 Total derivatives recognized in consolidated balance sheet, net 21,478 9,424 25,846 16,509 Non-cash collateral not offset (1,432) (412) (2,157) (3,588) Total Derivatives, net (2) $ 20,046 9,012 23,689 12,921 (1) Represents amounts with counterparties subject to enforceable master netting arrangements that have been offset in our consolidated balance sheet, including portfolio level counterparty valuation adjustments related to customer accommodation and other trading derivatives. Counterparty valuation adjustments related to derivative assets were $284 million and $399 million and debit valuation adjustments related to derivative liabilities were $158 million and $201 million as of December 31, 2021, and December 31, 2020, respectively, and were primarily related to interest rate contracts. (2) Prior period balances have been conformed to current period presentation. 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 25 (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 $32 million pre-tax of deferred net losses related to cash flow hedges in OCI at December 31, 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 primarily related to discontinued hedges of floating rate loans. For cash flow hedges as of December 31, 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 16.3 and Table 16.4 show the net gains (losses) related to derivatives in fair value and cash flow hedging relationships, respectively. Table 16.3: 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) Year ended December 31, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 9,253 (388) (3,173) 3,734 N/A 212 Interest contracts Amounts related to interest settlements on derivatives (253) 289 2,136 — 2,172 Recognized on derivatives 1,129 (336) (6,351) — (5,558) — Recognized on hedged items (1,117) 333 6,288 — 5,504 Total gains (losses) (pre-tax) on interest rate contracts (241) 286 2,073 — 2,118 — Foreign exchange contracts Amounts related to interest settlements on derivatives 57 — 10 — 67 Recognized on derivatives 4 — (516) (99) (611) 81 Recognized on hedged items (3) — 438 82 517 Total gains (losses) (pre-tax) on foreign exchange contracts 58 — (68) (17) (27) 81 Total gains (losses) (pre-tax) recognized on fair value hedges $ (183) 286 2,005 (17) 2,091 81 Year ended December 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 11,234 (2,804) (4,471) 3,847 N/A 198 Interest contracts Amounts related to interest settlements on derivatives (338) 503 1,704 — 1,869 Recognized on derivatives (1,261) 161 6,691 — 5,591 — Recognized on hedged items 1,317 (151) (6,543) — (5,377) Total gains (losses) (pre-tax) on interest rate contracts (282) 513 1,852 — 2,083 — Foreign exchange contracts Amounts related to interest settlements on derivatives 52 — (139) — (87) Recognized on derivatives (1) — 261 1,591 1,851 (31) Recognized on hedged items 2 — (201) (1,575) (1,774) Total gains (losses) (pre-tax) on foreign exchange contracts 53 — (79) 16 (10) (31) Total gains (losses) (pre-tax) recognized on fair value hedges $ (229) 513 1,773 16 2,073 (31) Year ended December 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 14,955 (8,635) (7,350) 7,457 N/A 275 Interest contracts Amounts related to interest settlements on derivatives — 58 169 — 227 Recognized on derivatives (2,082) 463 5,001 — 3,382 — Recognized on hedged items 2,096 (442) (4,910) — (3,256) Total gains (losses) (pre-tax) on interest rate contracts 14 79 260 — 353 — Foreign exchange contracts Amounts related to interest settlements on derivatives 35 — (483) — (448) Recognized on derivatives (5) — 308 (358) (55) (3) Recognized on hedged items 6 — (289) 350 67 Total gains (losses) (pre-tax) on foreign exchange contracts 36 — (464) (8) (436) (3) Total gains (losses) (pre-tax) recognized on fair value hedges $ 50 79 (204) (8) (83) (3) Table 16.4: 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) Year ended December 31, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 28,634 (3,173) N/A 212 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (137) — (137) 137 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A 7 Total gains (losses) (pre-tax) on interest rate contracts (137) — (137) 144 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (6) (6) 6 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (19) Total gains (losses) (pre-tax) on foreign exchange contracts — (6) (6) (13) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (137) (6) (143) 131 Year ended December 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 34,230 (4,471) N/A 198 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (215) 4 (211) 211 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (215) 4 (211) 211 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (8) (8) 8 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 — (8) (8) 18 Total gains (losses) (pre-tax) recognized on cash flow hedges $ (215) (4) (219) 229 Year ended December 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 44,218 (7,350) N/A 275 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (291) 1 (290) 290 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (291) 1 (290) 290 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (9) (9) 9 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (21) Total gains (losses) (pre-tax) on foreign exchange contracts — (9) (9) (12) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (291) (8) (299) 278 Table 16.5 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 16.5: Hedged Items in Fair Value Hedging Relationship Hedged items currently designated Hedged items no longer designated (in millions) Carrying amount of assets/(liabilities) (1)(2) Hedge accounting Carrying amount of assets/(liabilities) (2) Hedge accounting basis adjustment December 31, 2021 Available-for-sale debt securities (4) $ 24,144 (559) 17,962 965 Deposits (10,187) (144) — — Long-term debt (138,801) (5,192) — — December 31, 2020 Available-for-sale debt securities (4) $ 29,538 827 17,091 1,111 Deposits (22,384) (477) — — Long-term debt (156,907) (12,466) (14,468) 31 (1) 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 $873 million and for long-term debt is $(2.7) billion as of December 31, 2021, and $17.6 billion for debt securities and $(4.7) billion for long-term debt as of December 31, 2020. (2) 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. (3) The balance includes $136 million and $188 million of debt securities and long-term debt cumulative basis adjustments as of December 31, 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) 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. Mortgage Banking Activities We use economic hedge derivatives in our mortgage banking business to hedge the risk of changes in the fair value of (1) certain residential MSRs measured at fair value, (2) residential mortgage LHFS, (3) derivative loan commitments, and (4) other interests held. The types of derivatives used include swaps, swaptions, constant maturity mortgages, forwards, Eurodollar and Treasury futures and options contracts. Loan commitments for mortgage loans that we intend to sell are considered derivatives. Residential MSRs, derivative loan commitments, certain residential mortgage LHFS, and our economic hedge derivatives are carried at fair value with changes in fair value included in mortgage banking noninterest income. See Note 9 (Mortgage Banking Activities) for additional information on this economic hedging activity and mortgage banking income. Customer Accommodation Trading and Other For customer accommodation trading purposes, we use swaps, futures, forwards, spots and options to assist our customers in managing their own risks, including interest rate, commodity, equity, foreign exchange, and credit contracts. These derivatives are not linked to specific assets and liabilities on the consolidated balance sheet or to forecasted transactions in an accounting hedge relationship and, therefore, do not qualify for hedge accounting. We also enter into derivatives for risk management that do not otherwise qualify for hedge accounting. They are carried at fair value with changes in fair value recorded in noninterest income. Customer accommodation trading and other derivatives also include embedded derivatives that are required to be accounted for separately from their host contract. We periodically issue hybrid long-term notes and CDs where the performance of the hybrid instrument note is linked to an equity, commodity or currency index, or basket of such indices. These notes contain explicit terms that affect some or all of the cash flows or the value of the note in a manner similar to a derivative instrument and therefore are considered to contain an “embedded” derivative instrument. The indices on which the performance of the hybrid instrument is calculated are not clearly and closely related to the host debt instrument. The “embedded” derivative is separated from the host contract and accounted for as a derivative. Additionally, we may invest in hybrid instruments that contain embedded derivatives, such as credit derivatives, that are not clearly and closely related to the host contract. In such instances, we either elect fair value option for the hybrid instrument or separate the embedded derivative from the host contract and account for the host contract and derivative separately. Table 16.6 shows the net gains (losses), recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 16.6: Gains (Losses) on Derivatives Not Designated as Hedging Instruments Noninterest income Noninterest expense (in millions) Mortgage banking Net gains on trading and securities Other Total Personnel expense Year ended December 31, 2021 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (51) — (11) (62) — Equity contracts — 495 (1) 494 (611) Foreign exchange contracts — — 335 335 — Credit contracts — — (12) (12) — Subtotal (51) 495 311 755 (611) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 62 1,217 — 1,279 — Commodity contracts — 133 — 133 — Equity contracts — (4,549) (444) (4,993) — Foreign exchange contracts — 827 — 827 — Credit contracts — (93) — (93) — Subtotal 62 (2,465) (444) (2,847) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 11 (1,970) (133) (2,092) (611) Year ended December 31, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,787 — (93) 2,694 — Equity contracts — (1,167) (25) (1,192) (778) Foreign exchange contracts — — (455) (455) — Credit contracts — — 14 14 — Subtotal 2,787 (1,167) (559) 1,061 (778) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 1,964 (1,021) — 943 — Commodity contracts — 446 — 446 — Equity contracts — (436) (334) (770) — Foreign exchange contracts — 89 — 89 — Credit contracts — (1) — (1) — Subtotal 1,964 (923) (334) 707 — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 4,751 (2,090) (893) 1,768 (778) Year ended December 31, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,177 — 1 2,178 — Equity contracts — (2,120) (2) (2,122) — Foreign exchange contracts — — (77) (77) — Credit contracts — — (5) (5) — Subtotal 2,177 (2,120) (83) (26) — Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 418 (95) — 323 — Commodity contracts — 164 — 164 — Equity contracts — (4,863) (484) (5,347) — Foreign exchange contracts — 47 — 47 — Credit contracts — (120) — (120) — Subtotal 418 (4,867) (484) (4,933) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 2,595 (6,987) (567) (4,959) — (1) Mortgage banking amounts for the years ended 2021, 2020 and 2019 are comprised of gains (losses) of $(1.2) billion, $4.6 billion and $2.3 billion related to derivatives used as economic hedges of MSRs measured at fair value offset by gains (losses) of $1.2 billion, $(1.8) billion and $(141) million related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments. Credit Derivatives Credit derivative contracts are arrangements whose value is derived from the transfer of credit risk of a reference asset or entity from one party (the purchaser of credit protection) to another party (the seller of credit protection). We use credit derivatives to assist customers with their risk management objectives predominantly by purchasing and selling credit protection on corporate debt obligations through the use of credit default swaps or through risk participation swaps to help manage counterparty exposure. We would be required to perform under the credit derivatives we sold 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. Table 16.7 provides details of sold credit derivatives. Table 16.7: Sold Credit Derivatives Notional amount (in millions) Protection sold Protection sold – non-investment grade December 31, 2021 Credit default swaps $ 8,033 1,982 Risk participation swaps 6,756 6,012 Total credit derivatives 14,789 7,994 December 31, 2020 (1) Credit default swaps 5,707 1,805 Risk participation swaps 6,378 6,262 Total credit derivatives $ 12,085 8,067 (1) Prior period balances have been conformed to current period presentation. Protection sold represents the estimated maximum exposure to loss that would be incurred, if upon an event of default, the value of our interests and any associated collateral declined to zero, and does not take into consideration any of recovery value from the referenced obligation or offset from collateral held or any economic hedges. 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 credit risk to be low if the underlying assets under the credit derivative have an external rating that is investment grade. If an external rating was not available, we classified the credit derivative as non-investment grade. Our maximum exposure to sold credit derivatives is managed through posted collateral and purchased credit derivatives with identical or similar reference positions in order to achieve our desired credit risk profile. The credit risk management is designed to provide an ability to recover a significant portion of any amounts that would be paid under sold credit derivatives. 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 16.8 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 16.8: Credit-Risk Contingent Features (in billions) Dec 31, Dec 31, Net derivative liabilities with credit-risk contingent features $ 12.2 10.5 Collateral posted 11.0 9.0 Additional collateral to be posted upon a below investment grade credit rating (1) 1.2 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	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Note 17: Fair Values of Assets and Liabilities We use fair value measurements to record fair value adjustments to certain assets and liabilities and to fulfill fair value disclosure requirements. 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 17.1 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 17.4 in this Note. We provide in Table 17.8 estimates of fair value for financial instruments that are not recorded at fair value, such as loans and debt liabilities carried at amortized cost. 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 this Report 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 TRADING DEBT SECURITIES Trading debt securities are recorded at fair value on a recurring basis. These securities are valued using internal trader prices that are subject to price verification procedures, which includes comparing against multiple independent pricing sources, including prices obtained from third-party pricing services. These services compile prices from various sources and may apply matrix pricing for similar securities when no price is observable. We review pricing methodologies provided by pricing services to determine if observable market information is being used versus unobservable inputs. When evaluating the appropriateness of an internal trader price, compared with pricing service prices, considerations include the range and quality of pricing service prices in addition to observable trade data. Pricing service prices are used to ensure the reasonableness of a trader price; however, valuing financial instruments involves judgments acquired from knowledge of a particular market. If a trader asserts that a third-party pricing service price is not reflective of fair value, justification for using the trader price, including recent sales activity where possible, must be provided to and approved by the appropriate levels of management. Substantially all of our trading debt securities are recorded using internal trader prices. AVAILABLE-FOR-SALE DEBT SECURITIES AFS debt securities are recorded at fair value on a recurring basis. Fair value measurement for AFS debt securities is based upon various sources of market pricing. Where available, we use quoted prices in active markets. When instruments are traded in secondary markets and quoted prices in active markets do not exist for such securities, we use prices obtained from third-party pricing services and, to a lesser extent, may use prices obtained from independent broker-dealers (brokers), collectively vendor prices. Substantially all of our AFS debt securities are recorded using vendor prices. See the “Level 3 Asset and Liability Valuation Processes – Vendor Developed Valuations” section in this Note for additional discussion of our processes when using vendor prices to record fair value of AFS debt securities, which includes those classified as Level 2 or Level 3 within the fair value hierarchy. When vendor prices are deemed inappropriate, they may be adjusted based on other market data or internal models. We also use internal models when no vendor prices are available. Internal models use discounted cash flow techniques or market comparable pricing techniques. LOANS HELD FOR SALE (LHFS) LHFS generally includes commercial and residential mortgage loans originated for sale in the securitization or whole loan market. A majority of residential LHFS and our portfolio of commercial LHFS in our trading business are recorded at fair value on a recurring basis. The remaining LHFS are held at LOCOM which may be written down to fair value on a nonrecurring basis. Fair value for LHFS that are not part of our trading business is based on quoted market prices, where available, or the prices for other mortgage whole loans with similar characteristics. We may use securitization prices that are adjusted for typical securitization activities including servicing value, portfolio composition, market conditions and liquidity. Fair value for LHFS in our trading business is based on pending transactions when available. Where market pricing data or pending transactions are not available, we use a discounted cash flow model to estimate fair value. LOANS Although loans are recorded at amortized cost, we record nonrecurring fair value adjustments to reflect write-downs that are based on the observable market price of the loan or current appraised value of the collateral less costs to sell. MORTGAGE SERVICING RIGHTS (MSRs) Residential MSRs are carried at fair value on a recurring basis. Commercial MSRs are carried at LOCOM and may be written down to fair value on a nonrecurring basis. MSRs do not trade in an active market with readily observable prices. We determine the fair value of MSRs using a valuation model that estimates the present value of expected future net servicing income. The model incorporates assumptions that market participants use in estimating future net servicing income cash flows, including estimates of prepayment rates (including housing price volatility for residential MSRs), discount rates, default rates, cost to service (including delinquency and foreclosure costs), escrow account earnings, contractual servicing fee income, ancillary income and late fees. DERIVATIVES Derivatives are recorded at fair value on a recurring basis. The fair value of exchange-traded derivatives, which include certain equity option contracts, are primarily measured using available quoted market prices. The fair value of non-exchange-traded derivatives, which predominantly relate to derivatives traded in over-the-counter (OTC) markets, are measured using internal valuation techniques, as quoted market prices are not always readily available. Valuation techniques and inputs to internal models depend on the type of derivative and nature of the underlying rate, price or index upon which the value of the derivative is based. Key inputs can include yield curves, credit curves, foreign exchange rates, prepayment rates, volatility measurements and correlation of certain of these inputs. EQUITY SECURITIES Marketable equity securities and certain nonmarketable equity securities that we have elected to account for at fair value are recorded at fair value on a recurring basis. Our remaining nonmarketable equity securities are accounted for using the equity method, cost method or measurement alternative and can be subject to nonrecurring fair value adjustments to record impairment. Additionally, the carrying value of equity securities accounted for under the measurement alternative is also remeasured to fair value upon the occurrence of orderly observable transactions of the same or similar securities of the same issuer. We use quoted prices to determine the fair value of marketable equity securities, as the securities are publicly traded. Quoted prices are typically not available for nonmarketable equity securities. We therefore use other methods, generally market comparable pricing techniques, to determine fair value for such securities. We use all available information in making this determination, which includes observable transaction prices for the same or similar security, prices from third-party pricing services, broker quotes, trading multiples of comparable public companies, and discounted cash flow models. Where appropriate, we make adjustments to observed market data to reflect the comparative differences between the market data and the attributes of our equity security, such as differences with public companies and other investment-specific considerations like liquidity, marketability or differences in terms of the instruments. OTHER ASSETS Although other assets are generally recorded at amortized cost, we record nonrecurring fair value adjustments to reflect impairments or the impact of certain lease modifications. Other assets subject to nonrecurring fair value measurements include operating lease ROU assets and foreclosed assets. Fair value is generally based upon independent market prices or appraised values less costs to sell, or the use of a discounted cash flow model. Liabilities SHORT-SALE TRADING LIABILITIES Short-sale trading liabilities in our trading business are recorded at fair value on a recurring basis and are measured using quoted prices in active markets, where available. When quoted prices for the same instruments are not available or markets are not active, fair values are estimated using recent trades of similar securities. Level 3 Asset and Liability Valuation Processes We generally determine fair value of our Level 3 assets and liabilities by using internal models and, to a lesser extent, prices obtained from vendors. Our valuation processes vary depending on which approach is utilized. INTERNAL MODEL VALUATIONS Certain Level 3 fair value estimates are based on internal models, such as discounted cash flow or market comparable pricing techniques. Some of the inputs used in these valuations are unobservable. Unobservable inputs are generally derived from or can be correlated to historic performance of similar portfolios or previous market trades in similar instruments where particular unobservable inputs may be implied. We attempt to correlate each unobservable input to historical experience and other third-party data where available. Internal models are subject to review prescribed within our model risk management policies and procedures, which include model validation. Model validation helps ensure our models are appropriate for their intended use and appropriate controls exist to help mitigate risk of invalid valuations. Model validation assesses the adequacy and appropriateness of our models, including reviewing its key components, such as inputs, processing components, logic or theory, output results and supporting model documentation. Validation also includes ensuring significant unobservable model inputs are appropriate given observable market transactions or other market data within the same or similar asset classes. We also have ongoing monitoring procedures in place for our Level 3 assets and liabilities that use internal valuation models. These procedures, which are designed to provide reasonable assurance that models continue to perform as expected, include: • ongoing analysis and benchmarking to market transactions and other independent market data (including pricing vendors, if available); • back-testing of modeled fair values to actual realized transactions; and • review of modeled valuation results against expectations, including review of significant or unusual fluctuations in value. We update model inputs and methodologies periodically to reflect these monitoring procedures. Additionally, existing models are subject to periodic reviews and we perform full model revalidations as necessary. Internal valuation models are subject to ongoing review by the appropriate principal line of business or enterprise function and monitoring oversight by Independent Risk Management. Independent Risk Management, through its Model Risk function, provides independent oversight of model risk management, and its responsibilities include governance, validation, periodic review, and monitoring of model risk across the Company and providing periodic reports to management and the Board’s Risk Committee. VENDOR-DEVELOPED VALUATIONS We routinely obtain pricing from third-party vendors to value our assets or liabilities. In certain limited circumstances, this includes assets and liabilities that we classify as Level 3. We have processes in place to approve and periodically review third-party vendors to ensure information obtained and valuation techniques used are appropriate. This review may consist of, among other things, obtaining and evaluating control reports issued and pricing methodology materials distributed. We monitor and review vendor prices on an ongoing basis to ensure the fair values are reasonable and in line with market experience in similar asset classes. While the inputs used to determine fair value are not provided by the pricing vendors, and therefore unavailable for our review, we perform one or more of the following procedures to validate the pricing information and determine appropriate classification within the fair value hierarchy: • comparison to other pricing vendors (if available); • variance analysis of prices; • corroboration of pricing by reference to other independent market data, such as market transactions and relevant benchmark indices; • review of pricing by Company personnel familiar with market liquidity and other market-related conditions; and • investigation of prices on a specific instrument-by-instrument basis. Assets and Liabilities Recorded at Fair Value on a Recurring Basis Table 17.1 presents the balances of assets and liabilities recorded at fair value on a recurring basis. Table 17.1: Fair Value on a Recurring Basis December 31, 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 $ 27,607 2,249 — 29,856 $ 32,060 3,197 — 35,257 Collateralized loan obligations — 655 211 866 — 534 148 682 Corporate debt securities — 9,987 18 10,005 — 10,696 13 10,709 Federal agency mortgage-backed securities — 40,350 — 40,350 — 23,549 — 23,549 Non-agency mortgage-backed securities — 1,531 11 1,542 — 1,039 12 1,051 Other debt securities — 5,645 1 5,646 — 3,847 — 3,847 Total trading debt securities 27,607 60,417 241 88,265 32,060 42,862 173 75,095 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 39,661 — — 39,661 22,159 — — 22,159 Non-U.S. government securities — 71 — 71 — 16,813 — 16,813 Securities of U.S. states and political subdivisions — 16,832 85 16,917 — 19,182 224 19,406 Federal agency mortgage-backed securities — 105,886 — 105,886 — 139,070 — 139,070 Non-agency mortgage-backed securities — 4,522 10 4,532 — 3,697 32 3,729 Collateralized loan obligations — 5,708 — 5,708 — 9,018 — 9,018 Other debt securities — 4,378 91 4,469 38 7,421 2,738 10,197 Total available-for-sale debt securities 39,661 137,397 186 177,244 22,197 195,201 2,994 220,392 Loans held for sale — 14,862 1,033 15,895 — 17,572 1,234 18,806 Mortgage servicing rights (residential) — — 6,920 6,920 — — 6,125 6,125 Derivative assets (gross): Interest rate contracts 52 22,296 190 22,538 11 35,590 462 36,063 Commodity contracts — 5,902 63 5,965 — 1,997 39 2,036 Equity contracts 6,402 9,350 2,019 17,771 4,888 12,384 1,613 18,885 Foreign exchange contracts 8 6,573 7 6,588 19 8,573 11 8,603 Credit contracts — 32 14 46 — 45 50 95 Total derivative assets (gross) 6,462 44,153 2,293 52,908 4,918 58,589 2,175 65,682 Equity securities: Marketable 29,968 82 4 30,054 23,995 596 5 24,596 Nonmarketable (1) — 57 8,906 8,963 10 21 9,228 9,259 Total equity securities 29,968 139 8,910 39,017 24,005 617 9,233 33,855 Total assets prior to derivative netting $ 103,698 256,968 19,583 380,249 $ 83,180 314,841 21,934 419,955 Derivative netting (2) (31,430) (39,836) Total assets after derivative netting 348,819 380,119 Derivative liabilities (gross): Interest rate contracts $ (28) (17,712) (63) (17,803) $ (27) (26,259) (16) (26,302) Commodity contracts — (2,351) (66) (2,417) — (1,503) (40) (1,543) Equity contracts (5,820) (10,753) (2,448) (19,021) (4,860) (15,219) (1,927) (22,006) Foreign exchange contracts (8) (6,654) (10) (6,672) (10) (8,134) (12) (8,156) Credit contracts — (40) (3) (43) — (49) (9) (58) Total derivative liabilities (gross) (5,856) (37,510) (2,590) (45,956) (4,897) (51,164) (2,004) (58,065) Short-sale trading liabilities (15,436) (5,249) — (20,685) (15,292) (7,149) — (22,441) Total liabilities prior to derivative netting $ (21,292) (42,759) (2,590) (66,641) $ (20,189) (58,313) (2,004) (80,506) Derivative netting (2) 36,532 41,556 Total liabilities after derivative netting (30,109) (38,950) (1) Excludes $81 million and $154 million of nonmarketable equity securities as of December 31, 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 16 (Derivatives) for additional information. Level 3 Assets and Liabilities Recorded at Fair Value on a Recurring Basis Table 17.2 presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis. Table 17.2: 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) Year ended December 31, 2021 Trading debt securities $ 173 7 518 (448) (12) 34 (31) 241 (8) (6) Available-for-sale debt securities 2,994 21 809 (112) (278) 353 (3,601) 186 (4) (6) Loans held for sale 1,234 (25) 477 (534) (377) 394 (136) 1,033 (26) (7) Mortgage servicing rights (residential) (8) 6,125 (842) 1,645 (8) — — — 6,920 1,170 (7) Net derivative assets and liabilities: Interest rate contracts 446 27 — — (340) (5) (1) 127 (75) Equity contracts (314) (468) — — 379 (228) 202 (429) (266) Other derivative contracts 39 (114) 3 (3) 77 — 3 5 (36) Total derivative contracts 171 (555) 3 (3) 116 (233) 204 (297) (377) (9) Equity securities 9,233 (267) 1 (68) — 11 — 8,910 (316) (6) Year ended December 31, 2020 Trading debt securities $ 223 (53) 600 (589) (12) 115 (111) 173 (36) (6) Available-for-sale debt securities 1,565 (34) 43 (68) (263) 2,255 (504) 2,994 1 (6) Loans held for sale 1,214 (96) 1,312 (586) (323) 1,927 (2,214) 1,234 (38) (7) Mortgage servicing rights (residential) (8) 11,517 (7,068) 1,707 (32) 1 — — 6,125 (4,693) (7) Net derivative assets and liabilities: Interest rate contracts 214 2,074 — — (1,842) — — 446 334 Equity contracts (269) (316) — — 298 (22) (5) (314) (19) Other derivative contracts (5) (63) 8 3 73 22 1 39 11 Total derivative contracts (60) 1,695 8 3 (1,471) — (4) 171 326 (9) Equity securities 7,850 1,369 2 — — 23 (11) 9,233 1,370 (6) Year ended December 31, 2019 Trading debt securities $ 290 (31) 391 (385) (34) 1 (9) 223 (31) (6) Available-for-sale debt securities 2,044 (6) 475 (9) (743) 6 (202) 1,565 (4) (6) Loans held for sale 1,057 56 356 (237) (263) 354 (109) 1,214 51 (7) Mortgage servicing rights (residential) (8) 14,649 (4,779) 1,933 (286) — — — 11,517 (2,569) (7) Net derivative assets and liabilities: Interest rate contracts 25 585 — — (396) — — 214 249 Equity contracts (17) (571) — — 292 6 21 (269) (186) Other derivative contracts 13 (176) 13 (12) 132 2 23 (5) 12 Total derivative contracts 21 (162) 13 (12) 28 8 44 (60) 75 (9) Equity securities 5,468 2,383 — (1) — 12 (12) 7,850 2,386 (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 $41 million, $0 million, and $(40) million included in other comprehensive income from AFS debt securities for the years ended December 31, 2021, 2020 and 2019, 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, except for $1.8 billion of AFS debt securities that were transferred to HTM debt securities during fourth quarter 2021 and $153 million of AFS debt securities that were transferred to loans during third quarter 2019. (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 $(1) million and $57 million included in other comprehensive income from AFS debt securities for the years ended December 31, 2021 and 2020, respectively. (6) Included in net gains on trading and securities in the consolidated statement of income. (7) Included in mortgage banking income in the consolidated statement of income. (8) For additional information on the changes in mortgage servicing rights, see Note 9 (Mortgage Banking Activities). (9) Included in mortgage banking income, net gains on trading and securities, and other noninterest income in the consolidated statement of income. Table 17.3 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of our Level 3 assets and liabilities measured at fair value on a recurring basis. The significant unobservable inputs for Level 3 assets inherent in the fair values obtained from third-party vendors are not included in the table, as the specific inputs applied are not provided by the vendor (see discussion in the “Level 3 Asset and Liability Valuation Processes” section within this Note regarding vendor-developed valuations). Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. Table 17.3: Valuation Techniques – Recurring Basis ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique Significant Range of Inputs Weighted December 31, 2021 Trading and available-for-sale debt securities $ 136 Discounted cash flow Discount rate 0.4 - 12.5 % 5.5 11 Vendor priced 280 Market comparable pricing Comparability adjustment (30.2) - 19.2 (4.6) Loans held for sale 1,033 Discounted cash flow Default rate 0.0 - 29.2 % 1.2 Discount rate 1.6 - 11.9 5.1 Loss severity 0.0 - 46.9 15.4 Prepayment rate 7.5 - 18.2 13.1 Mortgage servicing rights (residential) 6,920 Discounted cash flow Cost to service per loan (1) $ 54 - 585 106 Discount rate 5.8 - 8.8 % 6.4 Prepayment rate (2) 12.5 - 21.1 14.7 Net derivative assets and (liabilities): Interest rate contracts 87 Discounted cash flow Default rate 0.0 - 5.0 2.1 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 18.7 Interest rate contracts: derivative loan commitments 40 Discounted cash flow Fall-out factor 1.0 - 99.0 16.8 Initial-value servicing (74.8) - 146.0 bps 50.9 Equity contracts 253 Discounted cash flow Conversion factor (10.2) - 0.0 % (9.7) Weighted average life 0.5 - 2.0 yrs 1.1 (682) Option model Correlation factor (77.0) - 99.0 % 23.2 Volatility factor 6.5 - 72.0 29.1 Nonmarketable equity securities 8,906 Market comparable pricing Comparability adjustment (21.6) - (7.7) (15.5) Insignificant Level 3 assets, net of liabilities 9 Total Level 3 assets, net of liabilities $ 16,993 (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 commitments 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 $54 - $199 at December 31, 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 $19.6 billion and $21.9 billion and total Level 3 liabilities of $2.6 billion and $2.0 billion, before netting of derivative balances, at December 31, 2021 and 2020, respectively. The internal valuation techniques used for our Level 3 assets and liabilities, as presented in Table 17.3, are described as follows: • Discounted cash flow – Discounted cash flow valuation techniques generally consist of developing an estimate of future cash flows that are expected to occur over the life of an instrument and then discounting those cash flows at a rate of return that results in the fair value amount. • Market comparable pricing – Market comparable pricing valuation techniques are used to determine the fair value of certain instruments by incorporating known inputs, such as recent transaction prices, pending transactions, financial metrics of comparable companies, or prices of other similar investments that require significant adjustment to reflect differences in instrument characteristics. • Option model – Option model valuation techniques are generally used for instruments in which the holder has a contingent right or obligation based on the occurrence of a future event, such as the price of a referenced asset going above or below a predetermined strike price. Option models estimate the likelihood of the specified event occurring by incorporating assumptions such as volatility estimates, price of the underlying instrument and expected rate of return. The unobservable inputs presented in the previous tables are those we consider significant to the fair value of the Level 3 asset or liability. We consider unobservable inputs to be significant if by their exclusion the fair value of the Level 3 asset or liability would be impacted by a predetermined percentage change. We also consider qualitative factors, such as nature of the instrument, type of valuation technique used, and the significance of the unobservable inputs relative to other inputs used within the valuation. Following is a description of the significant unobservable inputs provided in the table. • Comparability adjustment – is an adjustment made to observed market data, such as a transaction price to reflect dissimilarities in underlying collateral, issuer, rating, or other factors used within a market valuation approach, expressed as a percentage of an observed price. • Conversion Factor – is the risk-adjusted rate in which a particular instrument may be exchanged for another instrument upon settlement, expressed as a percentage change from a specified rate. • Correlation factor – is the likelihood of one instrument changing in price relative to another based on an established relationship expressed as a percentage of relative change in price over a period over time. • Cost to service – is the expected cost per loan of servicing a portfolio of loans, which includes estimates for unreimbursed expenses (including delinquency and foreclosure costs) that may occur as a result of servicing such loan portfolios. • Default rate – is an estimate of the likelihood of not collecting contractual amounts owed expressed as a constant default rate (CDR). • Discount rate – is a rate of return used to calculate the present value of the future expected cash flow to arrive at the fair value of an instrument. The discount rate consists of a benchmark rate component and a risk premium component. The benchmark rate component, for example, OIS, London Interbank Offered Rate (LIBOR) or U.S. Treasury rates, is generally observable within the market and is necessary to appropriately reflect the time value of money. The risk premium component reflects the amount of compensation market participants require due to the uncertainty inherent in the instruments’ cash flows resulting from risks such as credit and liquidity. • Fall-out factor – is the expected percentage of loans associated with our interest rate lock commitment portfolio that are likely of not funding. • Initial-value servicing – is the estimated value of the underlying loan, including the value attributable to the embedded servicing right, expressed in basis points of outstanding unpaid principal balance. • Loss severity – is the estimated percentage of contractual cash flows lost in the event of a default. • Multiples – are financial ratios of comparable public companies, such as ratios of enterprise value or market value of equity to earnings before interest, depreciation, and amortization (EBITDA), revenue, net income or book value, adjusted to reflect dissimilarities in operational, financial, or marketability to the comparable public company used in a market valuation approach. • Prepayment rate – is the estimated rate at which forecasted prepayments of principal of the related loan or debt instrument are expected to occur, expressed as a constant prepayment rate (CPR). • Volatility factor – is the extent of change in price an item is estimated to fluctuate over a specified period of time expressed as a percentage of relative change in price over a period over time. • Weighted average life – is the weighted average number of years an investment is expected to remain outstanding based on its expected cash flows reflecting the estimated date the issuer will call or extend the maturity of the instrument or otherwise reflecting an estimate of the timing of an instrument’s cash flows whose timing is not contractually fixed. Interrelationships and Uncertainty of Inputs Used in Recurring Level 3 Fair Value Measurements Usage of the valuation techniques presented in Table 17.3 requires determination of relevant inputs and assumptions, some of which represent significant unobservable inputs. Accordingly, changes in these unobservable inputs may have a significant impact on fair value. Certain of these unobservable inputs will (in isolation) have a directionally consistent impact on the fair value of the instrument for a given change in that input. Alternatively, the fair value of the instrument may move in an opposite direction for a given change in another input. Where multiple inputs are used within the valuation technique of an asset or liability, a change in one input in a certain direction may be offset by an opposite change in another input having a potentially muted impact to the overall fair value of that particular instrument. Additionally, a change in one unobser

Preferred Stock

Preferred Stock	12 Months Ended
	Dec. 31, 2021
Preferred Stock [Abstract]
Preferred Stock	Note 18: 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. Table 18.1 summarizes information about our preferred stock including 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. In September 2021, we redeemed our Preferred Stock, Series O and Series X, for an aggregate cost of $1.8 billion. Table 18.1: Preferred Stock December 31, 2021 December 31, 2020 (in millions, except shares) Shares Shares issued and outstanding Liquidation preference value Carrying Shares Shares Liquidation preference value Carrying value DEP Shares Dividend Equalization Preferred Shares (DEP) 97,000 96,546 $ — — 97,000 96,546 $ — — Series I (1) Floating Class A Preferred Stock — — — — 25,010 25,010 2,501 2,501 Series L (2) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 4,025,000 3,967,995 3,968 3,200 4,025,000 3,967,995 3,968 3,200 Series N (3) 5.20% Non-Cumulative Perpetual Class A Preferred Stock — — — — 30,000 30,000 750 750 Series O (3) 5.125% Non-Cumulative Perpetual Class A Preferred Stock — — — — 27,600 26,000 650 650 Series P (3) 5.25% Non-Cumulative Perpetual Class A Preferred Stock — — — — 26,400 25,000 625 625 Series Q 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 69,000 69,000 1,725 1,725 69,000 69,000 1,725 1,725 Series R 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 34,500 33,600 840 840 34,500 33,600 840 840 Series S 5.90% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 80,000 2,000 2,000 80,000 80,000 2,000 2,000 Series U 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 80,000 2,000 2,000 80,000 80,000 2,000 2,000 Series W (3) 5.70% Non-Cumulative Perpetual Class A Preferred Stock — — — — 40,000 40,000 1,000 1,000 Series X (3) 5.50% Non-Cumulative Perpetual Class A Preferred Stock — — — — 46,000 46,000 1,150 1,150 Series Y 5.625% Non-Cumulative Perpetual Class A Preferred Stock 27,600 27,600 690 690 27,600 27,600 690 690 Series Z 4.75% Non-Cumulative Perpetual Class A Preferred Stock 80,500 80,500 2,013 2,013 80,500 80,500 2,013 2,013 Series AA 4.70% Non-Cumulative Perpetual Class A Preferred Stock 46,800 46,800 1,170 1,170 46,800 46,800 1,170 1,170 Series BB 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock 140,400 140,400 3,510 3,510 — — — — Series CC 4.375% Non-Cumulative Perpetual Class A Preferred Stock 46,000 42,000 1,050 1,050 — — — — Series DD 4.25% Non-Cumulative Perpetual Class A Preferred Stock 50,000 50,000 1,250 1,250 — — — — ESOP (4) Cumulative Convertible Preferred Stock 609,434 609,434 609 609 822,242 822,242 822 822 Total 5,386,234 5,323,875 $ 20,825 20,057 5,557,652 5,496,293 $ 21,904 21,136 (1) 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. Prior to redemption, Preferred Stock, Series I, was related to trust preferred securities. See Note 8 (Securitizations and Variable Interest Entities) for additional information. (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; in third quarter 2021, Preferred Stock, Series O and Series X, were fully 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 18.2: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Dec 31, Dec 31, Dec 31, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 189,225 221,945 $ 189 222 7.00 % 8.00 % 2017 135,135 163,210 135 163 7.00 8.00 2016 128,380 162,450 128 162 9.30 10.30 2015 68,106 92,904 68 93 8.90 9.90 2014 62,420 99,151 63 99 8.70 9.70 2013 26,168 61,948 26 62 8.50 9.50 2012 — 20,634 — 21 10.00 11.00 Total ESOP Preferred Stock (1) 609,434 822,242 $ 609 822 Unearned ESOP shares (2) $ (646) (875) (1) At December 31, 2021 and 2020, additional paid-in capital included $37 million and $53 million, respectively, related to ESOP preferred stock. (2) We recorded a corresponding charge to unearned ESOP shares in connection with the issuance of the ESOP Preferred Stock. The unearned ESOP shares are reduced as shares of the ESOP Preferred Stock are committed to be released.

Common Stock and Stock Plans

Common Stock and Stock Plans	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Common Stock and Stock Plans	Note 19: Common Stock and Stock Plans Common Stock Table 19.1 presents our reserved, issued and authorized shares of common stock at December 31, 2021. Table 19.1: Common Stock Shares Number of shares Dividend reinvestment and common stock purchase plans 9,190,147 Director plans 173,238 Stock plans (1) 353,806,684 Convertible securities and warrants 65,835,437 Total shares reserved 429,005,506 Shares issued 5,481,811,474 Shares not reserved or issued 3,089,183,020 Total shares authorized 9,000,000,000 (1) Includes employee restricted share rights, performance share awards, 401(k), and deferred compensation plans. We have a general policy on repurchasing shares to meet common stock issuance requirements for our benefit plans, share awards, conversion of our convertible securities, acquisitions and other corporate purposes. Various factors determine the amount and timing of our share repurchases, including our capital requirements, the number of shares we expect to issue for acquisitions and employee benefit plans, market conditions (including the trading price of our stock), and regulatory and legal considerations. These factors can change at any time, and there can be no assurance as to the number of shares we will repurchase or when we will repurchase them. Dividend Reinvestment and Common Stock Purchase Plans Participants in our dividend reinvestment and common stock direct purchase plans may purchase shares of our common stock at fair market value by reinvesting dividends and/or making optional cash payments under the plan’s terms. Employee Stock Plans We offer stock-based employee compensation plans as described below. For additional information on our accounting for stock-based compensation plans, see Note 1 (Summary of Significant Accounting Policies). LONG-TERM INCENTIVE COMPENSATION PLANS We have granted restricted share rights (RSRs) and performance share awards (PSAs) as our primary long-term incentive awards using our Long-Term Incentive Compensation Plan (LTICP). Holders of RSRs and PSAs may be entitled to receive additional RSRs and PSAs (dividend equivalents) or cash payments equal to the cash dividends that would have been paid had the RSRs or PSAs been issued and outstanding shares of common stock. RSRs and PSAs granted as dividend equivalents are subject to the same vesting schedule and conditions as the underlying award. Table 19.2 summarizes the major components of stock incentive compensation expense and the related recognized tax benefit. Table 19.2: Stock Incentive Compensation Expense Year ended December 31, (in millions) 2021 2020 2019 RSRs $ 931 732 1,109 Performance shares (1) 74 (110) 108 Total stock incentive compensation expense $ 1,005 622 1,217 Related recognized tax benefit $ 248 154 301 (1) Compensation expense fluctuates with the estimated outcome of satisfying performance conditions and, for certain awards, changes in our stock price. The total number of shares of common stock available for grant under the plans at December 31, 2021, was 147 million. Restricted Share Rights Holders of RSRs are entitled to the related shares of common stock at no cost generally vesting over three Table 19.3: Restricted Share Rights Number Weighted- average grant-date fair value Nonvested at January 1, 2021 46,231,770 $ 46.30 Granted 31,143,741 32.99 Vested (21,954,589) 48.28 Canceled or forfeited (3,816,743) 38.76 Nonvested at December 31, 2021 51,604,179 37.98 The weighted-average grant date fair value of RSRs granted during 2020 and 2019 was $42.53 and $49.32, respectively. At December 31, 2021, there was $879 million of total unrecognized compensation cost related to nonvested RSRs. The cost is expected to be recognized over a weighted-average period of 2.4 years. The total fair value of RSRs that vested during 2021, 2020 and 2019 was $902 million, $981 million and $773 million, respectively. Performance Share Awards Holders of PSAs are entitled to the related shares of common stock at no cost subject to the Company’s achievement of specified performance criteria over a three A summary of the status of our PSAs at December 31, 2021, and changes during 2021 is in Table 19.4, based on the performance adjustments recognized as of December 2021. Table 19.4: Performance Share Awards Number Weighted-average Nonvested at January 1, 2021 5,553,608 $ 45.45 Granted 1,414,431 $ 32.76 Vested (791,681) $ 55.15 Canceled or forfeited (1,493,389) $ 55.95 Nonvested at December 31, 2021 4,682,969 $ 36.63 (1) Reflects approval date fair value for grants subject to variable accounting. The weighted-average grant date fair value of performance awards granted during 2020 and 2019 was $40.39 and $49.26, respectively. At December 31, 2021, there was $29 million of total unrecognized compensation cost related to nonvested performance awards. The cost is expected to be recognized over a weighted-average period of 1.9 years. The total fair value of PSAs that vested during 2021, 2020 and 2019 was $31 million, $35 million and $82 million, respectively. Stock Options Stock options have not been issued in the last three years and no stock options were outstanding at December 31, 2021 and 2020. Director Awards We granted common stock awards under the LTICP to non-employee directors elected or re-elected at the annual meeting of stockholders and prorated awards to directors who join the Board at any other time. Stock awards vest immediately. Employee Stock Ownership Plan The Wells Fargo & Company 401(k) Plan (401(k) Plan) is a defined contribution plan with an Employee Stock Ownership Plan (ESOP) feature. The ESOP feature enables the 401(k) Plan to borrow money to purchase our preferred or common stock. From 1994 through 2018, with the exception of 2009, we loaned money to the 401(k) Plan to purchase shares of our ESOP preferred stock. As our employer contributions are made to the 401(k) Plan and are used to make ESOP loan payments, a portion of the ESOP preferred stock in the 401(k) Plan is released and converted into our common stock shares, which are allocated to the 401(k) Plan participants and invested in the Wells Fargo ESOP Fund within the 401(k) Plan. Dividends on the common stock shares allocated as a result of the release and conversion of the ESOP preferred stock reduce retained earnings, and the shares are considered outstanding for computing earnings per share. Dividends on the unallocated ESOP preferred stock do not reduce retained earnings, and the shares are not considered to be common stock equivalents for computing earnings per share. Table 19.5 presents the information related to the Wells Fargo ESOP Fund and the dividends paid to the 401 (K) Plan. Table 19.5: Wells Fargo ESOP Fund Shares outstanding December 31, (in millions, except shares) 2021 2020 2019 Allocated shares (common) 149,638,081 155,810,091 138,978,383 Unreleased shares (preferred) 609,434 822,242 1,071,418 Conversion value of unreleased ESOP preferred shares $ 609 822 1,072 Fair value of unreleased ESOP preferred shares based on redemption 700 990 1,231 Dividends paid Year ended December 31, 2021 2020 2019 Allocated shares (common) $ 74 155 233 Unreleased shares (preferred) 66 77 101

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Note 20: Revenue from Contracts with Customers Our revenue includes net interest income on financial instruments and noninterest income. Table 20.1 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 26 (Operating Segments). Table 20.1: Revenue by Operating Segment (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Consolidated Year ended December 31, 2021 Net interest income (2) $ 22,807 4,960 7,410 2,570 (1,541) (427) 35,779 Noninterest income: Deposit-related fees 3,045 1,285 1,112 28 5 — 5,475 Lending-related fees (2) 145 532 761 8 (1) — 1,445 Investment advisory and other asset-based fees (3) — 10 52 9,574 1,375 — 11,011 Commissions and brokerage services fees — — 290 2,010 (1) — 2,299 Investment banking fees (11) 53 2,405 1 (94) — 2,354 Card fees: Card interchange and network revenues (4) 3,426 196 45 4 — — 3,671 Other card fees (2) 504 — — — — — 504 Total card fees 3,930 196 45 4 — — 4,175 Mortgage banking (2) 4,490 — 480 (12) (2) — 4,956 Net gains (losses) from trading activities (2) — — 272 21 (9) — 284 Net gains on debt securities (2) — 44 — — 509 — 553 Net gains (losses) from equity securities (2) (2) 132 289 79 5,929 — 6,427 Lease income (2) — 682 33 — 281 — 996 Other (2) 473 655 690 63 2,044 (1,187) 2,738 Total noninterest income 12,070 3,589 6,429 11,776 10,036 (1,187) 42,713 Total revenue $ 34,877 8,549 13,839 14,346 8,495 (1,614) 78,492 Year ended December 31, 2020 Net interest income (2) $ 23,378 6,134 7,509 2,988 441 (494) 39,956 Noninterest income: Deposit-related fees 2,904 1,219 1,062 27 9 — 5,221 Lending-related fees (2) 158 531 684 9 (1) — 1,381 Investment advisory and other asset-based fees (3) — 32 95 8,085 1,651 — 9,863 Commissions and brokerage services fees — — 315 2,078 (9) — 2,384 Investment banking fees (8) 76 1,952 14 (169) — 1,865 Card fees: Card interchange and network revenues (4) 2,805 170 51 3 1 — 3,030 Other card fees (2) 513 — — — 1 — 514 Total card fees 3,318 170 51 3 2 — 3,544 Mortgage banking (2) 3,224 — 282 (13) — — 3,493 Net gains (losses) from trading activities (2) 1 (4) 1,190 25 (40) — 1,172 Net gains on debt securities (2) 6 — — — 867 — 873 Net gains (losses) from equity securities (2) 10 (147) 212 (101) 691 — 665 Lease income (2) — 646 20 — 579 — 1,245 Other (2) 1,025 518 556 98 1,336 (931) 2,602 Total noninterest income 10,638 3,041 6,419 10,225 4,916 (931) 34,308 Total revenue $ 34,016 9,175 13,928 13,213 5,357 (1,425) 74,264 Year ended December 31, 2019 Net interest income (2) $ 25,786 7,981 8,008 3,906 2,246 (624) 47,303 Noninterest income: Deposit-related fees 3,582 1,175 1,029 24 9 — 5,819 Lending-related fees (2) 230 524 710 8 2 — 1,474 Investment advisory and other asset-based fees (3) — 27 62 7,909 1,816 — 9,814 Commissions and brokerage services fees — — 292 2,170 (1) — 2,461 Investment banking fees (5) 85 1,804 6 (93) — 1,797 Card fees: Card interchange and network revenues (4) 2,973 254 79 6 6 — 3,318 Other card fees (2) 699 — — — (1) — 698 Total card fees 3,672 254 79 6 5 — 4,016 Mortgage banking (2) 2,314 — 413 (12) — — 2,715 Net gains (losses) from trading activities (2) 2 (10) 1,022 58 (79) — 993 Net gains (losses) on debt securities (2) — 4 (5) — 141 — 140 Net gains from equity securities (2) 4 115 297 256 2,171 — 2,843 Lease income (2) — 931 22 — 661 — 1,614 Other (2) 2,306 616 717 81 2,918 (795) 5,843 Total noninterest income 12,105 3,721 6,442 10,506 7,550 (795) 39,529 Total revenue $ 37,891 11,702 14,450 14,412 9,796 (1,419) 86,832 (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 $1.2 billion, $1.1 billion, and $1.2 billion for the years ended December 31, 2021, 2020 and 2019, respectively. (4) The cost of credit card rewards and rebates of $1.6 billion, $1.3 billion and $1.5 billion for the years ended December 31, 2021, 2020 and 2019, respectively, are presented net against the related revenues. We provide services to customers which have related performance obligations that we complete to recognize revenue. Our revenues are generally recognized either immediately upon the completion of our service or over time as we perform services. Any services performed over time generally require that we render services each period and therefore we measure our progress in completing these services based upon the passage of time. DEPOSIT-RELATED FEES are earned in connection with depository accounts for commercial and consumer customers and include fees for account charges, overdraft services, cash network fees, wire transfer and other remittance fees, and safe deposit box fees. Account charges include fees for periodic account maintenance activities and event-driven services such as stop payment fees. Our obligation for event-driven services is satisfied at the time of the event when the service is delivered, while our obligation for maintenance services is satisfied over the course of each month. Our obligation for overdraft services is satisfied at the time of the overdraft. Cash network fees are earned for processing ATM transactions, and our obligation is completed upon settlement of ATM transactions. Wire transfer and other remittance fees consist of fees earned for providing funds transfer services and issuing cashier’s checks and money orders. Our obligation is satisfied at the time of the performance of the funds transfer service or upon issuance of the cashier’s check or money order. Safe deposit box fees are generally recognized over time as we provide the services. 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 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. INVESTMENT BANKING FEES are earned for underwriting debt and equity securities, arranging syndicated loan transactions and performing other advisory services. Our obligation for these services is generally satisfied at closing of the transaction. CARD FEES include credit and debit card interchange and network revenues and various card-related fees. Credit and debit card interchange and network revenues are earned on credit and debit card transactions conducted through payment networks such as Visa, MasterCard, and American Express. Our obligation is satisfied concurrently with the delivery of services on a daily basis. Other card fees represent late fees, cash advance fees, balance transfer fees, and annual fees.

Employee Benefits and Other Exp

Employee Benefits and Other Expenses	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Employee Benefits and Other Expenses	Note 21: 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. Prior to July 1, 2009, eligible employees’ Cash Balance Plan accounts were allocated a compensation credit based on a percentage of their certified compensation; the freeze discontinued the allocation of compensation credits after June 30, 2009. Investment credits continue to be allocated to participants’ accounts based on their accumulated balances. We did not make a contribution to our Cash Balance Plan in 2021. We do not expect that we will be required to make a contribution to the Cash Balance Plan in 2022. For the nonqualified pension plans and postretirement benefit plans, there is no minimum required contribution beyond the amount needed to fund benefit payments. 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 $133 million and $121 million were recognized during 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 2021 and 2020 lump sum payments (included in the “Benefits paid” line in Table 21.1). Settlement losses were not recognized in 2019 as lump sum payments did not exceed the 2019 threshold. Our nonqualified defined benefit plans are unfunded and provide supplemental defined benefit pension benefits to certain eligible employees. The benefits under these plans were frozen in prior years. We provide health care and life insurance benefits for certain retired employees, and we reserve the right to amend, modify or terminate any of the benefits at any time. The information set forth in the following tables is based on current actuarial reports using the measurement date of December 31 for our pension and postretirement benefit plans. Table 21.1 presents the changes in the benefit obligation and the fair value of plan assets, the funded status, and the amounts recognized on the consolidated balance sheet. Changes in the benefit obligation for the qualified plans were driven by the amounts of benefits paid and changes in the actuarial loss (gain) amounts, which primarily reflected changes in the discount rates at December 31, 2021 and 2020, respectively. Table 21.1: Changes in Benefit Obligation and Fair Value of Plan Assets December 31, 2021 December 31, 2020 Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Change in benefit obligation: Benefit obligation at beginning of year $ 11,956 556 491 11,116 572 525 Service cost 17 — — 14 — — Interest cost 296 12 11 325 16 16 Plan participants’ contributions — — 40 — — 43 Actuarial loss (gain) (414) (18) (34) 1,205 25 (15) Benefits paid (818) (49) (69) (706) (57) (78) Settlements, Curtailments, and Amendments (2) — — (1) — — Foreign exchange impact (3) — — 3 — — Benefit obligation at end of year 11,032 501 439 11,956 556 491 Change in plan assets: Fair value of plan assets at beginning of year 12,061 — 549 10,763 — 540 Actual return on plan assets 324 — 25 1,291 — 38 Employer contribution 15 49 5 712 57 6 Plan participants’ contributions — — 40 — — 43 Benefits paid (818) (49) (69) (706) (57) (78) Settlement — — — (1) — — Foreign exchange impact (1) — — 2 — — Fair value of plan assets at end of year 11,581 — 550 12,061 — 549 Funded status at end of year $ 549 (501) 111 105 (556) 58 Amounts recognized on the consolidated balance sheet at end of year: Assets $ 620 — 133 181 — 84 Liabilities (71) (501) (22) (76) (556) (26) Table 21.2 provides information for pension and postretirement plans with benefit obligations in excess of plan assets. Table 21.2: Plans with Benefit Obligations in Excess of Plan Assets December 31, 2021 December 31, 2020 (in millions) Pension Benefits Other Benefits Pension Benefits Other Benefits Projected benefit obligation $ 664 N/A 715 N/A Accumulated benefit obligation 631 22 684 26 Fair value of plan assets 91 — 82 — Table 21.3 presents the components of net periodic benefit cost and other comprehensive income (OCI). 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 21.3: Net Periodic Benefit Cost and Other Comprehensive Income December 31, 2021 December 31, 2020 December 31, 2019 Pension benefits Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Service cost $ 17 — — 14 — — 11 — — Interest cost 296 12 11 325 16 16 419 22 23 Expected return on plan assets (598) — (19) (603) — (21) (567) — (28) Amortization of net actuarial loss (gain) 140 15 (20) 157 14 (19) 148 10 (17) Amortization of prior service credit — — (10) — — (10) — — (10) Settlement loss 134 2 — 121 3 — — 2 — Net periodic benefit cost (11) 29 (38) 14 33 (34) 11 34 (32) Other changes in plan assets and benefit obligations recognized in other comprehensive income: Net actuarial loss (gain) (142) (18) (40) 517 25 (32) 38 49 (47) Amortization of net actuarial gain (loss) (140) (15) 20 (157) (14) 19 (148) (10) 17 Amortization of prior service credit — — 10 — — 10 — — 10 Settlement (134) (2) — (121) (3) — — (2) — Total recognized in other comprehensive income (416) (35) (10) 239 8 (3) (110) 37 (20) Total recognized in net periodic benefit cost and other comprehensive income $ (427) (6) (48) 253 41 (37) (99) 71 (52) Table 21.4 provides the amounts recognized in cumulative OCI (pre-tax). Table 21.4: Benefits Recognized in Cumulative OCI December 31, 2021 December 31, 2020 Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Net actuarial loss (gain) $ 3,049 159 (390) 3,465 194 (370) Net prior service cost (credit) 1 — (126) 1 — (136) Total $ 3,050 159 (516) 3,466 194 (506) Plan Assumptions For additional information on our pension accounting assumptions, see Note 1 (Summary of Significant Accounting Policies). Table 21.5 presents the weighted-average assumptions used to estimate the projected benefit obligation. Table 21.5: Weighted-Average Assumptions Used to Estimate Projected Benefit Obligation December 31, 2021 December 31, 2020 Pension benefits Pension benefits Qualified Non- qualified Other Qualified Non- qualified Other Discount rate 2.85 % 2.60 2.71 2.46 2.15 2.31 Interest crediting rate 2.69 1.25 N/A 2.66 0.87 N/A Table 21.6 presents the weighted-average assumptions used to determine the net periodic benefit cost, including the impact of interim re-measurements as applicable. Table 21.6: Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost December 31, 2021 December 31, 2020 December 31, 2019 Pension benefits Pension benefits Pension benefits Qualified Non- qualified Other Qualified Non- qualified Other Qualified Non- qualified Other Discount rate 2.63 % 2.32 2.31 2.95 3.12 3.10 4.30 4.10 4.24 Interest crediting rate 2.68 1.08 N/A 2.68 1.46 N/A 3.22 2.05 N/A Expected return on plan assets 5.17 N/A 3.50 5.74 N/A 4.00 6.24 N/A 5.75 To account for postretirement health care plans, we used health care cost trend rates to recognize the effect of expected changes in future health care costs due to medical inflation, utilization changes, new technology, regulatory requirements and Medicare cost shifting. In determining the end of year benefit obligation, we assumed an average annual increase of approximately 7.50% for health care costs in 2022. This rate is assumed to trend down 0.30%-0.40% per year until the trend rate reaches an ultimate rate of 4.50% in 2030. The 2021 periodic benefit cost was determined using an initial annual trend rate of 7.80%. This rate was assumed to decrease 0.30%-0.40% per year until the trend rate reached an ultimate rate of 4.50% in 2030. Investment Strategy and Asset Allocation We seek to achieve the expected long-term rate of return with a prudent level of risk, given the benefit obligations of the pension plans and their funded status. Our overall investment strategy is designed to provide our Cash Balance Plan with a moderate amount of long-term growth opportunities while ensuring that risk is mitigated through diversification across numerous asset classes and various investment strategies, coupled with an investment strategy for the fixed income assets that is generally designed to approximate the interest rate sensitivity of the Cash Balance Plan’s benefit obligations. The Cash Balance Plan currently has a target asset allocation mix comprised of the following ranges: 75%-85% fixed income, 10%-20% equities, and 0%-10% in real estate, private equity and other investments. The Employee Benefit Review Committee (EBRC), which includes several members of senior management, formally reviews the investment risk and performance of our Cash Balance Plan on a quarterly basis. Annual Plan liability analysis and periodic asset/liability evaluations are also conducted. Other benefit plan assets include (1) assets held in a 401(h) trust, which are invested with a target mix of 50%-60% equities and 40%-50% fixed income, and (2) assets held in the Retiree Medical Plan Voluntary Employees’ Beneficiary Association (VEBA) trust, which are predominantly invested in fixed income securities and cash. Members of the EBRC formally review the investment risk and performance of these assets on a quarterly basis. Projected Benefit Payments Future benefits that we expect to pay under the pension and other benefit plans are presented in Table 21.7. Table 21.7: Projected Benefit Payments Pension benefits (in millions) Qualified Non- qualified Other benefits Year ended December 31, 2022 $ 859 44 38 2023 734 42 36 2024 690 41 34 2025 696 39 33 2026 694 38 31 2027-2031 3,284 161 135 Fair Value of Plan Assets Table 21.8 presents the classification of the fair value of the pension plan and other benefit plan assets in the fair value hierarchy. See Note 17 (Fair Values of Assets and Liabilities) for a description of the fair value hierarchy. Table 21.8: Pension and Other Benefit Plan Assets Carrying value at year end Pension plan assets Other benefits plan assets (in millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total December 31, 2021 Cash and cash equivalents $ 2 242 — 244 40 143 — 183 Long duration fixed income (1) 1,562 6,827 1 8,390 — — — — Intermediate (core) fixed income (2) — 429 — 429 — 193 — 193 High-yield fixed income — 134 — 134 — — — — International fixed income — 83 — 83 — — — — Domestic large-cap stocks (3) 378 57 — 435 11 67 — 78 Domestic mid-cap stocks 104 60 — 164 — 20 — 20 Domestic small-cap stocks 94 6 — 100 — 11 — 11 Global stocks (4) — 204 — 204 — — — — International stocks (5) 139 216 — 355 11 24 — 35 Emerging market stocks 30 96 — 126 — — — — Real estate 87 28 1 116 — — — — Hedge funds/absolute return — 54 — 54 — — — — Other 111 45 9 165 6 — 24 30 Plan investments – excluding investments at NAV $ 2,507 8,481 11 10,999 68 458 24 550 Investments at NAV (6) 533 — Net receivables 49 — Total plan assets $ 11,581 550 December 31, 2020 Cash and cash equivalents $ 68 154 — 222 46 145 — 191 Long duration fixed income (1) 1,032 6,092 — 7,124 — — — — Intermediate (core) fixed income (2) — 333 — 333 — 186 — 186 High-yield fixed income — 232 — 232 — — — — International fixed income — 136 — 136 — — — — Domestic large-cap stocks (3) 647 242 — 889 — 74 — 74 Domestic mid-cap stocks 216 121 — 337 — 20 — 20 Domestic small-cap stocks 212 10 — 222 — 12 — 12 Global stocks (4) — 417 — 417 — — — — International stocks (5) 260 440 1 701 12 25 — 37 Emerging market stocks 51 216 — 267 — — — — Real estate 133 44 2 179 — — — — Hedge funds/absolute return 73 77 — 150 — — — — Other 174 65 9 248 5 — 24 29 Plan investments – excluding investments at NAV $ 2,866 8,579 12 11,457 63 462 24 549 Investments at NAV (6) 572 — Net receivables 32 — Total plan assets $ 12,061 549 (1) This category includes a diversified mix of assets, which are being managed in accordance with a duration target of approximately 11 years and 12 years for December 31, 2021 and 2020 , respectively, and an emphasis on corporate credit bonds combined with investments in U.S. Treasury securities and other U.S. agency and non-agency bonds. (2) This category includes assets that are intermediate duration, investment grade bonds held in investment strategies benchmarked to the Bloomberg U.S. Aggregate Bond Index or comparable index, including U.S. Treasury securities, agency and non-agency asset-backed bonds and corporate bonds. (3) This category covers a broad range of investment styles, including active, enhanced index and passive approaches, as well as style characteristics of value, core and growth emphasized strategies. Assets in this category are currently diversified across eight unique investment strategies with no single investment manager strategy representing more than 2.0% of total plan assets in both years. (4) This category consists of four and five unique investment strategies for December 31, 2021 and 2020, respectively, providing exposure to broadly diversified, global equity investments with no single strategy representing more than 1.0% and 1.5% of total Plan assets for December 31, 2021 and 2020, respectively. (5) This category includes assets diversified across five unique investment strategies providing exposure to companies in developed market, non-U.S. countries with no single strategy representing more than 1.5% of total plan assets in both years. (6) Consists of certain investments that are measured at fair value using NAV per share (or its equivalent) as a practical expedient and are excluded from the fair value hierarchy. Table 21.9 presents the changes in Level 3 pension plan and other benefit plan assets measured at fair value. Table 21.9: Fair Value Level 3 Pension and Other Benefit Plan Assets Balance beginning Gains Purchases, sales and settlements (net) Transfer into/(out of) Level 3 Balance end of year (in millions) Year ended December 31, 2021 Pension plan assets $ 12 6 (8) 1 11 Other benefits plan assets 24 — — — 24 Year ended December 31, 2020 Pension plan assets 16 (1) (4) 1 12 Other benefits plan assets 24 — — — 24 (1) Represents unrealized and realized gains (losses). VALUATION METHODOLOGIES Following is a description of the valuation methodologies used for assets measured at fair value. Cash and Cash Equivalents – includes investments in collective investment funds valued at fair value based upon the fund’s NAV per share held at year-end. The NAV per share is quoted on a private market that is not active; however, the NAV per share is based on underlying investments traded on an active market. This group of assets also includes investments in registered investment companies valued at the NAV per share held at year-end and in interest-bearing bank accounts. Long Duration, Intermediate (Core), High-Yield, and International Fixed Income – includes investments traded on the secondary markets; prices are measured by using quoted market prices for similar securities, pricing models, and discounted cash flow analyses using significant inputs observable in the market where available, or a combination of multiple valuation techniques. This group of assets also includes highly liquid government securities such as U.S. Treasuries, limited partnerships valued at the NAV and collective investment funds described above. Domestic, Global, International and Emerging Market Stocks – investments in exchange-traded equity securities are valued at quoted market values. This group of assets also includes investments in registered investment companies and collective investment funds described above. Real Estate – includes investments in real estate, which are valued at fair value based on an income capitalization valuation approach. Market values are estimates, and the actual market price of the real estate can only be determined by negotiation between independent third parties in sales transactions. This group of assets also includes investments in exchange-traded equity securities and collective investment funds described above. Hedge Funds / Absolute Return – includes investments in registered investment companies, collective investment funds, and limited partnerships, as described above. Other – insurance contracts that are stated at cash surrender value. This group of assets also includes investments in registered investment companies and collective investment funds described above. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. Defined Contribution Retirement Plans We sponsor a qualified defined contribution retirement plan, the Wells Fargo & Company 401(k) Plan (401(k) Plan). Under the 401(k) Plan, after 1 month of service, eligible employees may contribute up to 50% of their certified compensation, subject to statutory limits. Effective January 2021, we implemented the following changes to the 401(k) Plan employer contributions: (1) with some exceptions, employees with one year of service must be employed in a benefit-eligible position on December 15; (2) added a new non-discretionary base contribution of 1% of certified compensation for employees with annual compensation of less than $75,000; (3) replaced the discretionary profit sharing contribution with a discretionary contribution for eligible employees with annual compensation of less than $150,000; and (4) revised the matching contribution vesting and timing. Eligible employees are 100% vested in their base and discretionary contributions after three years of service. A three-year service vesting requirement for matching contributions applies to employees hired after December 31, 2020. Base and matching contributions are made annually at year-end, and the discretionary contribution, if awarded, is made no later than the due date for the Company’s federal income tax return (including extensions) for the plan year. Additionally, we added installment payment options to the existing lump sum and partial lump sum distribution options and added optional advisory services. Prior to January 2021, eligible employees who completed one year of service were eligible to receive the matching contributions quarterly, which are dollar for dollar up to 6% of certified compensation, and a discretionary profit sharing contribution up to 4% of certified compensation, if awarded, paid following the plan year. Matching contributions were 100% vested, and the discretionary profit sharing contributions required three years of vesting service (no change). Total defined contribution retirement plan expenses were $1.1 billion in each of 2021, 2020 and 2019. Other Expenses Regulatory Charges and Assessments expense, which is included in other noninterest expense, was $842 million, $834 million, and $723 million in 2021, 2020 and 2019, respectively, and primarily consisted of Federal Deposit Insurance Corporation (FDIC) deposit assessment expense.

Restructuring Charges

Restructuring Charges	12 Months Ended
	Dec. 31, 2021
Restructuring Costs [Abstract]
Restructuring Charges	Note 22: 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. Changes in estimates represent reductions of noninterest expense based on refinements to previously estimated amounts, which reflect recent trends such as higher voluntary employee attrition, as well as changes in business activities. 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 22.1 provides details on our restructuring charges. Table 22.1: Accruals for Restructuring Charges (in millions) Personnel costs Facility closure costs Other Total December 31, 2019 $ — — — — Restructuring charges 1,371 80 144 1,595 Payments and utilization (105) (80) (100) (285) Changes in estimates (96) — — (96) December 31, 2020 $ 1,170 — 44 1,214 Restructuring charges 716 10 — 726 Payments and utilization (683) (4) (38) (725) Changes in estimates (638) (6) (6) (650) December 31, 2021 $ 565 — — 565

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Note 23: Income Taxes Table 23.1 presents the components of income tax expense (benefit). Table 23.1: Income Tax Expense (Benefit) (1) Year ended December 31, (in millions) 2021 2020 2019 Current: U.S. Federal $ 5,850 2,231 6,781 U.S. State and local 849 (310) 2,018 Non-U.S. 171 211 154 Total current 6,870 2,132 8,953 Deferred: U.S. Federal (1,446) (2,440) (2,331) U.S. State and local 200 (789) (852) Non-U.S. (46) (60) (9) Total deferred (1,292) (3,289) (3,192) Total $ 5,578 (1,157) 5,761 (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) . Table 23.2 reconciles the statutory federal income tax rate to the effective income tax rate. Our effective tax rate is calculated by dividing income tax expense (benefit) by income before income tax expense (benefit) less the net income from noncontrolling interests. Table 23.2: Effective Income Tax Expense (Benefit) and Rate (1) December 31, 2021 2020 2019 (in millions) Amount Rate Amount Rate Amount Rate Statutory federal income tax expense and rate $ 5,697 21.0 % $ 466 21.0 % $ 5,350 21.0 % Change in tax rate resulting from: State and local taxes on income, net of federal income tax benefit 1,046 3.9 65 2.8 944 3.7 Tax-exempt interest (316) (1.2) (358) (16.1) (460) (1.8) Tax credits, net of amortization (2) (1,001) (3.7) (626) (28.2) (530) (2.1) Nondeductible expenses (3) 368 1.4 199 9.0 800 3.1 Changes in prior year unrecognized tax benefits, inclusive of interest (122) (0.4) (938) (42.2) (88) (0.3) Other (94) (0.4) 35 1.6 (255) (1.0) Effective income tax expense (benefit) and rate $ 5,578 20.6 % $ (1,157) (52.1) % $ 5,761 22.6 % (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) Includes LIHTC proportional amortization expense, net of tax of $1.2 billion, $1.1 billion and $961 million in 2021, 2020 and 2019, respectively. (3) Includes nondeductible litigation accruals. Also, includes $155 million of nondeductible goodwill in 2021. The tax effects of our temporary differences that gave rise to significant portions of our deferred tax assets and liabilities are presented in Table 23.3. Table 23.3: Net Deferred Taxes (1) (in millions) Dec 31, Dec 31, Deferred tax assets Allowance for credit losses $ 3,415 4,871 Deferred compensation and employee benefits 3,124 3,225 Accrued expenses 1,300 1,503 Lease liabilities (2) 1,142 1,262 Net operating loss and tax credit carry forwards 382 366 Other 1,048 944 Total deferred tax assets 10,411 12,171 Deferred tax assets valuation allowance (267) (310) Deferred tax liabilities Mark to market, net (3,631) (4,043) Leasing and fixed assets (3,523) (4,163) Mortgage servicing rights (2,414) (2,647) Right-of-use assets (2) (948) (1,085) Intangible assets (559) (605) Basis difference in investments (496) (1,484) Net unrealized gains on debt securities (278) (1,056) Other (1,082) (1,468) Total deferred tax liabilities (12,931) (16,551) Net deferred tax liability (3)(4) $ (2,787) (4,690) (1) Prior period balances have been revised to conform with the current period presentation. (2) We revised prior period balances to separate deferred tax assets and liabilities that were previously reported on a net basis. This change had no impact on the net deferred tax liability that was previously reported. (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. For additional information, see Note 1 (Summary of Significant Accounting Policies). As a result of these changes, the net deferred tax liability decreased by $68 million at December 31, 2020. (4) The net deferred tax liability is included in accrued expenses and other liabilities. Deferred taxes related to net unrealized gains (losses) on debt securities, net unrealized gains (losses) on derivatives, foreign currency translation, and employee benefit plan adjustments are recorded in cumulative OCI. See Note 25 (Other Comprehensive Income) for additional information. We have determined that a valuation allowance is required for 2021 in the amount of $267 million, attributable to deferred tax assets in various state and non-U.S. jurisdictions where we believe it is more likely than not that these deferred tax assets will not be realized due to lack of sources of taxable income, limitations on carry back of losses or credits and the inability to implement tax planning to realize these deferred tax assets. We have concluded that it is more likely than not that the remaining deferred tax assets will be realized based on our history of earnings, sources of taxable income in carry back periods, and our ability to implement tax planning strategies. At December 31, 2021, we had net operating loss and tax credit carry forwards with related deferred tax assets of $382 million. If these carry forwards are not utilized, they will mostly expire in varying amounts through December 31, 2041. We do not intend to distribute earnings of certain non-U.S. subsidiaries in a taxable manner, and therefore intend to limit distributions to non-U.S. earnings previously taxed in the U.S., that would qualify for the 100% dividends received deduction, and that would not result in any significant state or non-U.S. taxes. All other undistributed non-U.S. earnings will continue to be permanently reinvested outside the U.S. and the related tax liability on these earnings is insignificant. Table 23.4 presents the change in unrecognized tax benefits. Table 23.4: Change in Unrecognized Tax Benefits Year ended December 31, (in millions) 2021 2020 Balance at beginning of year $ 4,826 6,996 Additions: For tax positions related to the current year 441 52 For tax positions related to prior years 259 263 Reductions: For tax positions related to prior years (124) (1,820) Lapse of statute of limitations (164) (3) Settlements with tax authorities (20) (662) Balance at end of year $ 5,218 4,826 Of the $5.2 billion of unrecognized tax benefits at December 31, 2021, approximately $3.7 billion would, if recognized, affect the effective tax rate. The remaining $1.5 billion of unrecognized tax benefits relates to income tax positions on temporary differences. We account for interest and penalties related to unrecognized tax benefits as a component of income tax expense. As of December 31, 2021 and 2020, we have accrued approximately $914 million and $951 million, respectively, for interest and penalties, net of tax. In 2021 and 2020, we recognized income tax expense (benefit), net of tax, of $(33) million and $10 million, respectively, related to interest and penalties. We are subject to U.S. federal income tax as well as income tax in numerous state and non-U.S. jurisdictions. We are routinely examined by tax authorities in these various jurisdictions. With few exceptions, Wells Fargo and its subsidiaries are not subject to federal, state, local and non-U.S. income tax examinations for taxable years prior to 2011. It is reasonably possible that one or more of the examinations or appeals may be resolved within the next twelve months resulting in a decrease of up to $1.5 billion of our gross unrecognized tax benefits. Table 23.5 summarizes our major tax jurisdiction examination status as of December 31, 2021. Table 23.5: Tax Examination Status Jurisdiction Tax Year(s) Status United States 2011-2014 Administrative appeals United States 2015-2018 Field examination California 2015-2016 Field examination New York 2015-2019 Field examination

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings and Dividends Per Common Share	Note 24: Earnings and Dividends Per Common Share Table 24.1 shows earnings per common share and diluted earnings per common share and reconciles the numerator and denominator of both earnings per common share calculations. See the Consolidated Statement of Changes in Equity and Note 19 (Common Stock and Stock Plans) for information about stock and options activity. Table 24.1: Earnings Per Common Share Calculations Year ended December 31, (in millions, except per share amounts) 2021 2020 2019 Wells Fargo net income (1) $ 21,548 3,377 19,715 Less: Preferred stock dividends and other (2) 1,292 1,591 1,612 Wells Fargo net income applicable to common stock (numerator) (1) $ 20,256 1,786 18,103 Earnings per common share Average common shares outstanding (denominator) 4,061.9 4,118.0 4,393.1 Per share $ 4.99 0.43 4.12 Diluted earnings per common share Average common shares outstanding 4,061.9 4,118.0 4,393.1 Add: Stock options (3) — — 0.8 Restricted share rights (3) 34.3 16.2 31.5 Diluted average common shares outstanding (denominator) 4,096.2 4,134.2 4,425.4 Per share $ 4.95 0.43 4.09 (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 years ended December 31, 2021, 2020 and 2019, balance includes $87 million, $301 million and $220 million, respectively, from the elimination of discounts or issuance costs associated with redemptions of preferred stock. (3) Calculated using the treasury stock method. Table 24.2 presents the outstanding securities that were anti-dilutive and therefore not included in the calculation of diluted earnings per common share. Table 24.2: Outstanding Anti-Dilutive Securities Weighted-average shares Year ended December 31, (in millions) 2021 2020 2019 Convertible Preferred Stock, Series L (1) 25.3 25.3 25.3 Restricted share rights (2) 0.2 1.1 — (1) Calculated using the if-converted method. (2) Calculated using the treasury stock method. Table 24.3 presents dividends declared per common share. Table 24.3: Dividends Declared Per Common Share Year ended December 31, 2021 2020 2019 Per common share $ 0.60 1.22 1.92

Other Comprehensive Income

Other Comprehensive Income	12 Months Ended
	Dec. 31, 2021
Cumulative Other Comprehensive Income Balances [Abstract]
Other Comprehensive Income	Note 25: Other Comprehensive Income Table 25.1 provides the components of other comprehensive income (OCI), reclassifications to net income by income statement line item, and the related tax effects. Table 25.1: Summary of Other Comprehensive Income Year ended December 31, 2021 2020 2019 (in millions) Before Tax Net of Before Tax Net of Before Tax Net of Debt securities: Net unrealized gains (losses) arising during the period (3,070) 759 (2,311) 2,317 (570) 1,747 $ 5,439 (1,337) 4,102 Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 474 (117) 357 532 (132) 400 263 (65) 198 Net gains on debt securities (553) 134 (419) (873) 213 (660) (140) 34 (106) Other noninterest income (3) 1 (2) — — — (1) — (1) Subtotal reclassifications to net income (82) 18 (64) (341) 81 (260) 122 (31) 91 Net change (3,152) 777 (2,375) 1,976 (489) 1,487 5,561 (1,368) 4,193 Derivatives and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) 81 (20) 61 (31) 7 (24) (3) 1 (2) Cash Flow Hedges: Net unrealized gains (losses) arising during the period on cash flow hedges (12) 3 (9) 10 (2) 8 (21) 5 (16) Reclassification of net (gains) losses to net income: Interest income on loans 137 (34) 103 215 (53) 162 291 (72) 219 Interest expense on long-term debt 6 (2) 4 4 (1) 3 8 (2) 6 Subtotal reclassifications to net income 143 (36) 107 219 (54) 165 299 (74) 225 Net change 212 (53) 159 198 (49) 149 275 (68) 207 Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period 200 (50) 150 (510) 126 (384) (40) 10 (30) Reclassification of amounts to noninterest expense (3): Amortization of net actuarial loss 135 (33) 102 152 (37) 115 141 (35) 106 Settlements and other 126 (29) 97 114 (26) 88 (8) 5 (3) Subtotal reclassifications to noninterest expense 261 (62) 199 266 (63) 203 133 (30) 103 Net change 461 (112) 349 (244) 63 (181) 93 (20) 73 Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period (30) 1 (29) 52 (2) 50 73 (2) 71 Reclassification of net (gains) losses to net income: Other noninterest income (1) — (1) — — — — — — Net change (31) 1 (30) 52 (2) 50 73 (2) 71 Other comprehensive income (loss) (2,510) 613 (1,897) 1,982 (477) 1,505 6,002 (1,458) 4,544 Less: Other comprehensive loss from noncontrolling interests, net of tax (1) — — Wells Fargo other comprehensive income (loss), net of tax (1,896) 1,505 4,544 (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 21 (Employee Benefits and Other Expenses) for additional information). Table 25.2 provides the cumulative OCI balance activity on an after-tax basis. Table 25.2: 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) Balance, December 31, 2018 $ (3,122) (178) (507) (2,296) (233) (6,336) Transition adjustment (3) 481 — — — — 481 Balance, January 1, 2019 (2,641) (178) (507) (2,296) (233) (5,855) Net unrealized gains (losses) arising during the period 4,102 (2) (16) (30) 71 4,125 Amounts reclassified from accumulated other comprehensive income 91 — 225 103 — 419 Net change 4,193 (2) 209 73 71 4,544 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, December 31, 2019 1,552 (180) (298) (2,223) (162) (1,311) Net unrealized gains (losses) arising during the period 1,747 (24) 8 (384) 50 1,397 Amounts reclassified from accumulated other comprehensive income (260) — 165 203 — 108 Net change 1,487 (24) 173 (181) 50 1,505 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, December 31, 2020 3,039 (204) (125) (2,404) (112) 194 Net unrealized gains (losses) arising during the period (2,311) 61 (9) 150 (29) (2,138) Amounts reclassified from accumulated other comprehensive income (64) — 107 199 (1) 241 Net change (2,375) 61 98 349 (30) (1,897) Less: Other comprehensive loss from noncontrolling interests (1) — — — — (1) Balance, December 31, 2021 665 (143) (27) (2,055) (142) (1,702) (1) Substantially all of the amounts for fair value hedges are foreign exchange contracts. (2) Majority of the amounts for cash flow hedges are interest rate contracts. (3) The transition adjustment relates to our adoption of ASU 2017-08-Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities in first quarter 2019.

Operating Segments

Operating Segments	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Operating Segments	Note 26: 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 February 2021, we announced an agreement to sell Wells Fargo Asset Management (WFAM), and in first quarter 2021, we moved the business from the Wealth and Investment Management operating segment to Corporate. 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. These changes did not impact the previously reported consolidated financial results of the Company. On November 1, 2021, we closed the sales of our Corporate Trust Services business and WFAM. 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, brokerage, financial planning, lending, private banking, trust and fiduciary products and services to affluent, high-net worth and ultra-high-net worth clients. We operate through financial advisors in our brokerage and wealth offices, consumer bank branches, independent offices, and digitally through WellsTrade ® and Intuitive Investor ® . 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 22 (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 26.1 presents our results by operating segment. Table 26.1: Operating Segments (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Items (1) Consolidated Year ended December 31, 2021 Net interest income (2) $ 22,807 4,960 7,410 2,570 (1,541) (427) 35,779 Noninterest income 12,070 3,589 6,429 11,776 10,036 (1,187) 42,713 Total revenue 34,877 8,549 13,839 14,346 8,495 (1,614) 78,492 Provision for credit losses (1,178) (1,500) (1,439) (95) 57 — (4,155) Noninterest expense 24,648 5,862 7,200 11,734 4,387 — 53,831 Income (loss) before income tax expense (benefit) 11,407 4,187 8,078 2,707 4,051 (1,614) 28,816 Income tax expense (benefit) 2,852 1,045 2,019 680 596 (1,614) 5,578 Net income before noncontrolling interests 8,555 3,142 6,059 2,027 3,455 — 23,238 Less: Net income (loss) from noncontrolling interests — 8 (3) — 1,685 — 1,690 Net income $ 8,555 3,134 6,062 2,027 1,770 — 21,548 Year ended December 31, 2020 Net interest income (2) $ 23,378 6,134 7,509 2,988 441 (494) 39,956 Noninterest income 10,638 3,041 6,419 10,225 4,916 (931) 34,308 Total revenue 34,016 9,175 13,928 13,213 5,357 (1,425) 74,264 Provision for credit losses 5,662 3,744 4,946 249 (472) — 14,129 Noninterest expense 26,976 6,323 7,703 10,912 5,716 — 57,630 Income (loss) before income tax expense (benefit) 1,378 (892) 1,279 2,052 113 (1,425) 2,505 Income tax expense (benefit) 302 (208) 330 514 (670) (1,425) (1,157) Net income (loss) before noncontrolling interests 1,076 (684) 949 1,538 783 — 3,662 Less: Net income (loss) from noncontrolling interests — 5 (1) — 281 — 285 Net income (loss) $ 1,076 (689) 950 1,538 502 — 3,377 Year ended December 31, 2019 Net interest income (2) $ 25,786 7,981 8,008 3,906 2,246 (624) 47,303 Noninterest income 12,105 3,721 6,442 10,506 7,550 (795) 39,529 Total revenue 37,891 11,702 14,450 14,412 9,796 (1,419) 86,832 Provision for credit losses 2,184 190 173 2 138 — 2,687 Noninterest expense 26,998 6,598 7,432 12,167 4,983 — 58,178 Income (loss) before income tax expense (benefit) 8,709 4,914 6,845 2,243 4,675 (1,419) 25,967 Income tax expense (benefit) 2,814 1,246 1,658 562 900 (1,419) 5,761 Net income before noncontrolling interests 5,895 3,668 5,187 1,681 3,775 — 20,206 Less: Net income (loss) from noncontrolling interests — 6 (1) — 486 — 491 Net income $ 5,895 3,662 5,188 1,681 3,289 — 19,715 Year ended December 31, 2021 Loans (average) $ 333,885 181,237 257,036 82,364 9,766 — 864,288 Assets (average) 388,208 198,761 523,344 88,503 743,089 — 1,941,905 Deposits (average) 834,739 197,269 189,176 176,562 40,066 — 1,437,812 Loans (period-end) 326,574 190,348 284,374 84,101 9,997 — 895,394 Assets (period-end) 378,620 210,810 546,549 90,754 721,335 — 1,948,068 Deposits (period-end) 883,674 205,428 168,609 192,548 32,220 — 1,482,479 Year ended December 31, 2020 Loans (average) $ 376,463 211,436 255,324 78,775 19,790 — 941,788 Assets (average) 432,042 226,961 521,514 85,942 675,250 — 1,941,709 Deposits (average) 722,085 178,946 234,332 162,476 78,172 — 1,376,011 Loans (period-end) 362,796 188,977 244,456 80,785 10,623 — 887,637 Assets (period-end) 420,995 206,953 508,518 87,778 728,667 — 1,952,911 Deposits (period-end) 784,565 188,292 203,004 175,483 53,037 — 1,404,381 (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.

Parent-Only Financial Statement

Parent-Only Financial Statements	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Parent-Only Financial Statements	Note 27: Parent-Only Financial Statements The following tables present Parent-only condensed financial statements. Table 27.1: Parent-Only Statement of Income Year ended December 31, (in millions) 2021 2020 2019 Income Dividends from subsidiaries (1) $ 17,895 42,578 21,930 Interest income from subsidiaries 3,934 1,295 3,356 Other interest income 1 3 43 Other income (418) (231) (162) Total income 21,412 43,645 25,167 Expense Interest expense: Indebtedness to nonbank subsidiaries 89 155 664 Long-term debt 2,823 3,591 4,931 Other — — 2 Noninterest expense 309 794 1,327 Total expense 3,221 4,540 6,924 Income before income tax benefit and equity in undistributed income of subsidiaries 18,191 39,105 18,243 Income tax benefit (819) (1,694) (945) Equity in undistributed income of subsidiaries (2) 2,538 (37,422) 527 Net income (2) $ 21,548 3,377 19,715 (1) Includes dividends paid from indirect bank subsidiaries of $15.2 billion, $1.8 billion and $21.8 billion in 2021, 2020 and 2019, respectively. (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). Table 27.2: Parent-Only Statement of Comprehensive Income Year ended December 31, (in millions) 2021 2020 2019 Net income (1) $ 21,548 3,377 19,715 Other comprehensive income (loss), net of tax: Debt securities 5 (10) (45) Derivatives and hedging activities 49 (2) (12) Defined benefit plans adjustments 347 (178) 75 Equity in other comprehensive income (loss) of subsidiaries (2,297) 1,695 4,526 Other comprehensive income, net of tax: (1,896) 1,505 4,544 Total comprehensive income (1) $ 19,652 4,882 24,259 (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). Table 27.3: Parent-Only Balance Sheet (in millions) Dec 31, Dec 31, Assets Cash, cash equivalents, and restricted cash due from subsidiary banks $ 15,134 14,817 Loans to nonbank subsidiaries 185,050 185,046 Investments in subsidiaries (1) (2) 172,926 172,637 Equity securities 140 144 Other assets 7,341 5,857 Total assets $ 380,591 378,501 Liabilities and equity Accrued expenses and other liabilities $ 7,333 8,249 Long-term debt 146,082 181,956 Indebtedness to nonbank subsidiaries 39,570 3,616 Total liabilities 192,985 193,821 Stockholders’ equity (1) 187,606 184,680 Total liabilities and equity $ 380,591 378,501 (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 years ended December 31, 2021 and 2020, include indirect ownership of bank subsidiaries with equity of $173.7 billion and $173.3 billion, respectively. Table 27.4: Parent-Only Statement of Cash Flows Year ended December 31, (in millions) 2021 2020 2019 Cash flows from operating activities: Net cash provided by operating activities $ 11,938 50,193 27,601 Cash flows from investing activities: Equity securities, not held for trading: Proceeds from sales and capital returns 11 2,333 326 Purchases (18) (1,479) (1,052) Loans: Net repayments from (advances to) subsidiaries — 10 (3) Capital notes and term loans made to subsidiaries (3,500) (38,547) (5,286) Principal collected on notes/loans made to subsidiaries 2,618 558 1,703 Net decrease (increase) in investment in subsidiaries — 425 (384) Other, net 14 16 22 Net cash used by investing activities (875) (36,684) (4,674) Cash flows from financing activities: Net increase (decrease) in short-term borrowings and indebtedness to subsidiaries 35,958 (22,613) (636) Long-term debt: Proceeds from issuance 1,001 34,918 20,369 Repayment (28,331) (15,803) (8,143) Preferred stock: Proceeds from issuance 5,756 3,116 — Redeemed (6,675) (3,602) (1,550) Cash dividends paid (1,205) (1,290) (1,391) Common stock: Repurchased (14,464) (3,415) (24,533) Cash dividends paid (2,422) (4,852) (8,198) Other, net (1) (364) (100) (197) Net cash used by financing activities (10,746) (13,641) (24,279) Net change in cash, cash equivalents, and restricted cash 317 (132) (1,352) Cash, cash equivalents, and restricted cash at beginning of year 14,817 14,949 16,301 Cash, cash equivalents, and restricted cash at end of year $ 15,134 14,817 14,949 (1) Prior period balances have been revised to conform with the current period presentation.

Regulatory Capital Requirements

Regulatory Capital Requirements and Other Restrictions	12 Months Ended
	Dec. 31, 2021
Regulatory Capital Requirements and Other Restrictions [Abstract]
Regulatory Capital Requirements and Other Restrictions	Note 28: 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 28.1 presents regulatory capital information for Wells Fargo & Company and the Bank in accordance with Basel III capital requirements. We must calculate our risk-based capital ratios under both the Standardized and Advanced Approaches. 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 remained in accordance with transition requirements at December 31, 2021, but became fully phased-in beginning January 1, 2022. 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 December 31, 2021, the Bank and our other insured depository institutions were considered well-capitalized under the requirements of the Federal Deposit Insurance Act. Table 28.1: Regulatory Capital Information (1) Wells Fargo & Company Wells Fargo Bank, N.A. Standardized Approach Advanced Approach Standardized Approach Advanced Approach (in millions, except ratios) December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 Regulatory capital: Common Equity Tier 1 $ 140,643 138,297 140,643 138,297 149,318 150,168 149,318 150,168 Tier 1 159,671 158,196 159,671 158,196 149,318 150,168 149,318 150,168 Total 196,308 196,660 186,580 186,934 173,044 173,719 163,213 164,412 Assets: Risk-weighted assets 1,239,026 1,193,744 1,116,068 1,158,355 1,137,839 1,085,599 965,511 1,012,751 Adjusted average assets 1,915,585 1,900,258 1,915,585 1,900,258 1,758,479 1,735,406 1,758,479 1,735,406 Regulatory capital ratios: Common Equity Tier 1 capital 11.35 % * 11.59 12.60 11.94 13.12 * 13.83 15.47 14.83 Tier 1 capital 12.89 * 13.25 14.31 13.66 13.12 * 13.83 15.47 14.83 Total capital 15.84 * 16.47 16.72 16.14 15.21 * 16.00 16.90 16.23 Required minimum capital ratios: Common Equity Tier 1 capital 9.60 9.00 9.00 9.00 7.00 7.00 7.00 7.00 Tier 1 capital 11.10 10.50 10.50 10.50 8.50 8.50 8.50 8.50 Total capital 13.10 12.50 12.50 12.50 10.50 10.50 10.50 10.50 Wells Fargo & Company Wells Fargo Bank, N.A. December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 Regulatory leverage: Total leverage exposure (2) $ 2,316,079 1,963,971 2,133,798 2,041,952 Supplementary leverage ratio (SLR) (2) 6.89 % 8.05 7.00 7.35 Tier 1 leverage ratio (3) 8.34 8.32 8.49 8.65 Required minimum leverage: Supplementary leverage ratio 5.00 5.00 6.00 6.00 Tier 1 leverage ratio 4.00 4.00 4.00 4.00 * Denotes the binding ratio under the Standardized and Advanced Approaches at December 31, 2021. (1) At December 31, 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 $241 million, reflecting a $991 million (post-tax) increase in capital recognized upon our initial adoption of CECL, offset by 25% of the $4.9 billion increase in our ACL under CECL from January 1, 2020, through December 31, 2021. The impact of the CECL transition provision on the regulatory capital of the Bank at December 31, 2021, was an increase in capital of $463 million. (2) 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. (3) 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 December 31, 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 included a stress capital buffer of 3.10% under the Standardized Approach and a capital conservation buffer of 2.50% under the Advanced Approach. The capital ratio requirements for the Bank included a capital conservation buffer of 2.50% under both the Standardized and Advanced Approaches. The Company is required to maintain these risk-based capital ratios and to maintain an SLR of at least 5.00% (composed 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. 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. 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. These covered transactions may not exceed 10% of the bank’s capital and surplus (which for this purpose represents tier 1 and tier 2 capital, as calculated under the risk-based capital rules, plus the balance of the ACL excluded from tier 2 capital) with any single nonbank affiliate and 20% of the bank’s capital and surplus with all its nonbank affiliates. Covered transactions that are extensions of credit may require collateral to be pledged to provide added security to the bank. Additionally, federal laws and regulations limit the dividends that a national bank may pay. Dividends that may be paid by a national bank without the express approval of the Office of the Comptroller of the Currency (OCC) are generally limited to that bank’s retained net income for the preceding two calendar years plus net income up to the date of any dividend declaration in the current calendar year. Retained net income, as defined by the OCC, consists of net income less dividends declared during the period. Our national bank subsidiaries could have declared additional dividends of $5.1 billion at December 31, 2021 , without obtaining prior regulatory approval. We have elected to retain higher capital at our national bank subsidiaries to meet internal capital policy minimums and regulatory requirements. Our nonbank subsidiaries are also limited by certain federal and state statutory provisions and regulations covering the amount of dividends that may be paid in any given year. 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. Based on retained earnings at December 31, 2021 , our nonbank subsidiaries could have declared additional dividends of $28.3 billion at December 31, 2021 , without obtaining prior regulatory approval. Cash Restrictions Cash and cash equivalents may be restricted as to usage or withdrawal. Table 28.2 provides a summary of restrictions on cash and cash equivalents . Table 28.2: Nature of Restrictions on Cash and Cash Equivalents (in millions) Dec 31, Dec 31, Reserve balance for non-U.S. central banks $ 382 243 Segregated for benefit of brokerage customers under federal and other brokerage regulations 830 957

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 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.
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 17 (Fair Values of Assets and Liabilities)); • liabilities for contingent litigation losses (Note 15 (Legal Actions)); • income taxes; and • goodwill impairment (Note 10 (Intangible Assets)). Actual results could differ from those estimates.
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 $448 million as of January 1, 2019. 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, 2019.
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
Consolidation	Consolidation Our consolidated financial statements include the accounts of the Parent and our subsidiaries in which we have a controlling financial interest. When our consolidated subsidiaries follow specialized industry accounting, that accounting is retained in consolidation. We are also a variable interest holder in certain entities in which equity investors do not have the characteristics of a controlling financial interest or where the entity does not have enough equity at risk to finance its activities without additional subordinated financial support from other parties (collectively referred to as variable interest entities (VIEs)). Our variable interest arises from contractual, ownership or other monetary interests in the entity, which change with fluctuations in the fair value of the entity’s net assets. We consolidate a VIE if we are the primary beneficiary, which is when we have both the power to direct the activities that most significantly impact the VIE and a variable interest that could potentially be significant to the VIE. To determine whether or not a variable interest we hold could potentially be significant to the VIE, we consider both qualitative and quantitative factors regarding the nature, size and form of our involvement with the VIE. We assess whether or not we are the primary beneficiary of a VIE on an ongoing basis. Significant intercompany accounts and transactions are eliminated in consolidation. When we have significant influence over operating and financing decisions for a company but do not own a majority of the voting equity interests, we account for the investment using the equity method of accounting, which requires us to recognize our proportionate share of the company’s earnings. If we do not have significant influence, we account for the equity security under the fair value method, cost meth od or measurement alternative. Noncontrolling interests represent the portion of net income and equity attributable to third-party owners of consolidated subsidiaries that are not wholly-owned by Wells Fargo. Substantially all of our noncontrolling interests relate to our affiliated venture capital and private equity businesses.
Cash, Cash Equivalents, and Restricted Cash	Cash, Cash Equivalents, and Restricted Cash Cash, cash equivalents and restricted cash include cash on hand, cash items in transit, and amounts due from or held with other depository institutions. See Note 28 (Regulatory Capital Requirements and Other Restrictions) for additional information on the restrictions on cash and cash equivalents.
Securities Purchased and Sold Agreements	Securities Purchased and Sold Agreements Securities purchased under resale agreements and securities sold under repurchase agreements are accounted for as collateralized financing transactions and are recorded at the acquisition or sale price plus accrued interest. We monitor the fair value of securities purchased and sold as well as the collateral pledged and received. Additional collateral is pledged or returned to maintain the appropriate collateral position for the transactions. These financing transactions do not create material credit risk given the collateral provided and the related monitoring process. We include securities sold under repurchase agreements in short-term borrowings on our consolidated balance sheet. At December 31, 2021 and 2020, short-term borrowings were primarily comprised of securities sold under repurchase agreements.
Loans and Loans Held for Sale	Loans Held for Sale Loans held for sale (LHFS) generally includes commercial and residential mortgage loans originated or purchased for sale in the securitization or whole loan market. We have elected the fair value option for a majority of residential LHFS (see Note 17 (Fair Values of Assets and Liabilities)). The remaining residential LHFS are held at the lower of cost or fair value (LOCOM) and are measured on a pool level basis. Commercial LHFS are generally held at LOCOM and are measured on an individual loan basis. We have elected the fair value option for certain commercial loans included in LHFS that are used in market-making activities for our trading business. Gains and losses on residential and commercial mortgage LHFS are generally recorded in mortgage banking noninterest income. Gains and losses on trading LHFS are recognized in net gains from trading activities. Gains and losses on other LHFS are recognized in other noninterest income. Direct loan origination costs and fees for LHFS under the fair value option are recognized in earnings at origination. For LHFS recorded at LOCOM, direct loan origination costs and fees are deferred at origination and are recognized in earnings at time of sale. Interest income on LHFS is calculated based upon the note rate of the loan and is recorded in interest income. When a determination is made at the time of commitment to originate loans as held for investment, it is our intent to hold these loans to maturity or for the foreseeable future, subject to periodic review under our management evaluation processes, including corporate asset/liability management. If subsequent changes occur, including changes in interest rates, our business strategy, or other market conditions, we may change our intent to hold these loans. When management makes this determination, we immediately transfer these loans to the LHFS portfolio at LOCOM.
Loans	Loans Loans are reported at their outstanding principal balances net of any unearned income, cumulative charge-offs, unamortized deferred fees and costs on originated loans and unamortized premiums or discounts on purchased loans. Unearned income, deferred fees and costs, and discounts and premiums are amortized to interest income over the contractual life of the loan using the effective interest method. Loan commitment fees collected at closing are deferred and amortized to noninterest income on a straight-line basis over the commitment period if loan funding is unlikely. Upon funding, deferred loan commitment fees are amortized to interest income over the contractual life of the loan. Loans also include financing leases where we are the lessor. See the “Leasing Activity” section in this Note for our accounting policy for leases. NONACCRUAL AND PAST DUE LOANS We generally place loans on nonaccrual status when: • the full and timely collection of interest or principal becomes uncertain (generally based on an assessment of the borrower’s financial condition and the adequacy of collateral, if any), such as in bankruptcy or other circumstances; • they are 90 days (120 days with respect to residential mortgage loans) past due for interest or principal, unless the loan is both well-secured and in the process of collection or the loan is in an active payment deferral as a result of the COVID-19 pandemic; • part of the principal balance has been charged off; or • for junior lien mortgage loans, we have evidence that the related first lien mortgage may be 120 days past due or in the process of foreclosure regardless of the junior lien delinquency status. Credit card loans are not placed on nonaccrual status, but are generally fully charged off when the loan reaches 180 days past due. When we place a loan on nonaccrual status, we reverse the accrued unpaid interest receivable against interest income and suspend amortization of any net deferred fees. If the ultimate collectability of the recorded loan balance is in doubt on a nonaccrual loan, the cost recovery method is used and cash collected is applied to first reduce the carrying value of the loan to zero and then as a recovery of prior charge-offs. Otherwise, interest income may be recognized to the extent cash is received. Generally, we return a loan to accrual status when all delinquent interest and principal become current under the terms of the loan agreement and collectability of remaining principal and interest is no longer doubtful. We may re-underwrite modified loans at the time of a restructuring to determine if there is sufficient evidence of sustained repayment capacity based on the borrower’s financial strength, including documented income, debt to income ratios and other factors. If the borrower has demonstrated performance under the previous terms and the underwriting process shows the capacity to continue to perform under the restructured terms, the loan will generally remain in accruing status. When a loan classified as a troubled debt restructuring (TDR) performs in accordance with its modified terms, the loan either continues to accrue interest (for performing loans) or will return to accrual status after the borrower demonstrates a sustained period of performance (generally six consecutive months of payments, or equivalent, inclusive of consecutive payments made prior to the modification). Loans will be placed on nonaccrual status and a corresponding charge-off is recorded if the re-underwriting did not include an evaluation of the borrower's ability to repay or we believe it is probable that principal and interest contractually due under the modified terms of the agreement will not be collectible. Our loans are considered past due when contractually required principal or interest payments have not been made on the due dates. LOAN CHARGE-OFF POLICIES For commercial loans, we generally fully charge off or charge down to net realizable value (fair value of collateral, less estimated costs to sell) for loans secured by collateral when: • management judges the loan to be uncollectible; • repayment is deemed to be protracted beyond reasonable time frames; • the loan has been classified as a loss by either our internal loan review process or our banking regulatory agencies; • the customer has filed bankruptcy and the loss becomes evident owing to a lack of assets; • the loan is 180 days past due unless both well-secured and in the process of collection; or • the loan is probable of foreclosure, and we have received an appraisal of less than the recorded loan balance. For consumer loans, we fully charge off or charge down to net realizable value when deemed uncollectible due to bankruptcy or other factors, or no later than reaching a defined number of days past due, as follows: • Residential mortgage loans – We generally charge down to net realizable value when the loan is 180 days past due and fully charge-off when the loan exceeds extended delinquency dates. • Auto loans – We generally fully charge off when the loan is 120 days past due. • Credit card loans – We generally fully charge off when the loan is 180 days past due. • Unsecured loans – We generally fully charge off when the loan is 120 days past due. • Unsecured lines – We generally fully charge off when the loan is 180 days past due. • Other secured loans – We generally fully or partially charge down to net realizable value when the loan is 120 days past due. TROUBLED DEBT RESTRUCTURINGS In situations where, for economic or legal reasons related to a borrower’s financial difficulties, we grant a concession for other than an insignificant period of time to the borrower that we would not otherwise consider, the related loan is classified as a troubled debt restructuring (TDR). These modified terms may include interest rate reductions, principal forgiveness, term extensions, payment forbearance and other actions intended to minimize our economic loss and to avoid foreclosure or repossession of the collateral, if applicable. For modifications where we forgive principal, the entire amount of such principal forgiveness is immediately charged off. If the underwriting for a TDR modification did not include an evaluation of the borrower's ability to repay, the loan is deemed collateral dependent. Other than resolutions such as foreclosures, sales and transfers to held-for-sale, we may remove loans held for investment from TDR classification, but only if they have been refinanced or restructured at market terms and qualify as a new loan. TROUBLED DEBT RESTRUCTURINGS AND OTHER RELIEF RELATED TO COVID-19 The Coronavirus, Aid, Relief, and Economic Security Act (the CARES Act) and the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised) issued by federal regulators in April 2020 (the Interagency Statement) provide optional, temporary relief from accounting for certain loan modifications as TDRs. Based on guidance in the CARES Act and Interagency Statement, modifications related to the adverse effects of Coronavirus Disease 2019 (COVID-19) that meet certain criteria are exempt from TDR classification. Additionally, we elected to apply the lease modification relief provided by the FASB for leases accounted for under ASC 842, Leases , that were modified due to COVID-19 and met certain criteria so as to not require a new lease classification test upon modification. During 2021, we continued to apply the TDR relief provided by the CARES Act and Interagency Statement for eligible COVID-related residential mortgage loan modifications. The TDR relief provided by the CARES Act guidance is no longer available after January 1, 2022; however, certain COVID-related lending accommodations may continue to be eligible for TDR relief under the Interagency Statement. For COVID-related modifications in the form of payment deferrals or payment forbearance, delinquency status will not advance and loans that were accruing at the time the relief is provided will generally not be placed on nonaccrual status during the deferral period. Interest accrued during payment deferrals or payment forbearance may be included in the principal balance of the loans and charge-offs will generally be based on delinquency status after the loan exits the deferral or forbearance period.
Allowance for Credit Losses	Allowance for Credit Losses The ACL is management’s estimate of the current expected life-time credit losses in the loan portfolio and unfunded credit commitments, at the balance sheet date, excluding loans and unfunded credit commitments carried at fair value or held for sale. Additionally, we maintain an ACL for AFS and HTM debt securities, other financing receivables measured at amortized cost, and other off-balance sheet credit exposures. While we attribute portions of the allowance to specific financial asset classes (loan and debt security portfolios), loan portfolio segments (commercial and consumer) or major security type, the entire ACL is available to absorb credit losses of the Company. Our ACL process involves procedures to appropriately consider the unique risk characteristics of our financial asset classes, portfolio segments, and major security types. For each loan portfolio segment and each major HTM debt security type, losses are estimated collectively for groups of loans or securities with similar risk characteristics. For loans and securities that do not share similar risk characteristics with other financial assets, the losses are estimated individually, which generally includes our nonperforming large commercial loans and non-accruing HTM debt securities. For AFS debt securities, losses are estimated at the individual security level. Our ACL amounts are influenced by a variety of factors, including changes in loan and debt security volumes, portfolio credit quality, and general economic conditions. General economic conditions are forecasted using economic variables which will create volatility as those variables change over time. See Table 1.3 for key economic variables used for our loan portfolios. Table 1.3: Key Economic Variables Loan Portfolio Key economic variables Total commercial • Gross domestic product • Commercial real estate asset prices, where applicable • Unemployment rate Residential mortgage • Home price index • Unemployment rate Other consumer (including credit card, auto, and other consumer) • Unemployment rate Our approach for estimating expected life-time credit losses for loans and debt securities includes the following key components: • An initial loss forecast period of two years for all portfolio segments and classes of financing receivables and off-balance-sheet credit exposures. This period reflects management’s expectation of losses based on forward-looking economic scenarios over that time. We forecast multiple economic scenarios that generally include a base scenario with an optimistic (upside) and one or more pessimistic (downside) scenarios, which are weighted by management to estimate future credit losses. • Long-term average loss expectations estimated by reverting to the long-term average, on a linear basis, for each of the economic variables forecasted during the initial loss forecast period. These long-term averages are based on observations over multiple economic cycles. The reversion period, which may be up to two years, is assessed on a quarterly basis. • The remaining contractual term of a loan is adjusted for expected prepayments and certain expected extensions, renewals, or modifications. We extend the contractual term when we are not able to unconditionally cancel contractual renewals or extension options. We also incorporate any scenarios where we reasonably expect to provide an extension through a TDR. Credit card loans have indeterminate maturities, which requires that we determine a contractual life by estimating the application of future payments to the outstanding loan amount. • Utilization of discounted cash flow (DCF) methods to measure credit impairment for loans modified in a troubled debt restructuring, unless they are collateral dependent and measured at the fair value of the collateral. The DCF methods obtain estimated life-time credit losses using the initial and historical mean loss forecast periods described above. • For AFS debt securities and certain beneficial interests classified as HTM, we utilize DCF methods to measure the ACL, which incorporate expected credit losses using the conceptual components described above. For most HTM debt securities, the ACL is measured using an expected loss model, similar to the methodology used for loans. The ACL for financial assets held at amortized cost is a valuation account that is deducted from, or added to, the amortized cost basis of the financial assets to present the net amount expected to be collected. When credit expectations change, the valuation account is adjusted with changes reported in provision for credit losses. If amounts previously charged off are subsequently expected to be collected, we may recognize a negative allowance, which is limited to the amount that was previously charged off. F or financial assets with an ACL estimated using DCF methods, changes in the ACL due to the passage of time are recorded in interest income. The ACL for AFS debt securities reflects the amount of unrealized loss related to expected credit losses, limited by the amount that fair value is less than the amortized cost basis (fair value floor) and cannot have an associated negative allowance. For certain financial assets, such as residential real estate loans guaranteed by the Government National Mortgage Association (GNMA), an agency of the federal government, U. S. Treasury and Agency mortgage-backed debt securities and certain sovereign debt securities, the Company has not recognized an ACL as our expectation of nonpayment of the amortized cost basis, based on historical losses, adjusted for current and forecasted conditions, is zero. A financial asset is collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. When a collateral-dependent financial asset is probable of foreclosure, we will measure the ACL based on the fair value of the collateral. If we intend to sell the underlying collateral, we will measure the ACL based on the collateral’s net realizable value (fair value of collateral, less estimated costs to sell). In most situations, based on our charge-off policies, we will immediately write-down the financial asset to the fair value of the collateral or net realizable value. For consumer loans, collateral-dependent financial assets may have collateral in the form of residential real estate, autos or other personal assets. For commercial loans, collateral-dependent financial assets may have collateral in the form of commercial real estate or other business assets. We do not generally record an ACL for accrued interest receivables because uncollectible accrued interest is reversed through interest income in a timely manner in line with our non-accrual and past due policies for loans and debt securities. For consumer credit card and certain consumer lines of credit, we include an ACL for accrued interest and fees since these loans are neither placed on nonaccrual status nor written off until the loan is 180 days past due. Accrued interest receivables are included in other assets, except for certain revolving loans, such as credit card loans. COMMERCIAL LOAN PORTFOLIO SEGMENT ACL METHODOLOGY Generally, commercial loans, which include net investments in lease financing, are assessed for estimated losses by grading each loan using various risk factors as identified through periodic reviews. Our estimation approach for the commercial portfolio reflects the estimated probability of default in accordance with the borrower’s financial strength and the severity of loss in the event of default, considering the quality of any underlying collateral. Probability of default, loss severity at the time of default, and exposure at default are statistically derived through historical observations of default and losses after default within each credit risk rating. These estimates are adjusted as appropriate for risks identified from current and forecasted economic conditions and credit quality trends. Unfunded credit commitments are evaluated based on a conversion factor to derive a funded loan equivalent amount. The estimated probability of default and loss severity at the time of default are applied to the funded loan equivalent amount to estimate losses for unfunded credit commitments. CONSUMER LOAN PORTFOLIO SEGMENT ACL METHODOLOGY For consumer loans, we determine the allowance using a pooled approach based on the individual risk characteristics of the loans within those pools. Quantitative modeling methodologies that estimate probability of default, loss severity at the time of default and exposure at default are typically leveraged to estimate expected loss. These methodologies pool loans, generally by product types with similar risk characteristics, such as residential real estate mortgages, auto loans and credit cards. As appropriate and to achieve greater accuracy, we may further stratify selected portfolios by sub-product, risk pool, loss type, geographic location and other predictive characteristics. We use attributes such as delinquency status, Fair Isaac Corporation (FICO) scores, and loan-to-value ratios (where applicable) in the development of our consumer loan models, in addition to home price trends, unemployment trends, and other economic variables that may influence the frequency and severity of losses in the consumer portfolio. OTHER QUALITATIVE FACTORS The ACL includes amounts for qualitative factors which may not be adequately reflected in our loss models. These amounts represent management’s judgment of risks in the processes and assumptions used in establishing the ACL. Generally, these amounts are established at a granular level below our loan portfolio segments. We also consider economic environmental factors, modeling assumptions and performance, process risk, and other subjective factors, including industry trends and emerging risk assessments. OFF-BALANCE SHEET CREDIT EXPOSURES Our off-balance sheet credit exposures include unfunded loan commitments (generally in the form of revolving lines of credit), financial guarantees not accounted for as insurance contracts or derivatives, including standby letters of credit, and other similar instruments. For off-balance sheet credit exposures, we recognize an ACL associated with the unfunded amounts. We do not recognize an ACL for commitments that are unconditionally cancelable at our discretion. Additionally, we recognize an ACL for financial guarantees that create off-balance sheet credit exposure, such as loans sold with credit recourse and factoring guarantees. ACL for off-balance sheet credit exposures are reported as a liability in accrued expenses and other liabilities on our consolidated balance sheet. OTHER FINANCIAL ASSETS Other financial assets are evaluated for expected credit losses. These other financial assets include accounts receivable for fees, receivables from government-sponsored entities, such as Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC), and GNMA, and other accounts receivables from high-credit quality counterparties, such as central clearing counterparties. Many of these financial assets are generally not expected to have an ACL as there is a zero loss expectation (for example, government guarantee) or no historical credit losses. Some financial assets, such as loans to employees, maintain an ACL that is presented on a net basis with the related amortized cost amounts in other assets on our consolidated balance sheet. Given the nature of these financial assets, provision for credit losses is not recognized separately from the regular income or expense associated with these financial assets. Securities purchased under resale agreements are generally over-collateralized by securities or cash and are generally short-term in nature. We have elected the practical expedient for these financial assets given collateral maintenance provisions. These provisions require that we monitor the collateral value and customers are required to replenish collateral, if needed. Accordingly, we generally do not maintain an ACL for these financial assets.
Purchased Credit Deteriorated Financial Assets	Purchased Credit Deteriorated Financial Assets Financial assets acquired that are of poor credit quality and with more than an insignificant evidence of credit deterioration since their origination or issuance are purchased credit deteriorated (PCD) assets. PCD assets include HTM and AFS debt securities and loans. PCD assets are recorded at their purchase price plus an ACL estimated at the time of acquisition. Under this approach, there is no provision for credit losses recognized at acquisition; rather, there is a gross-up of the purchase price of the financial asset for the estimate of expected credit losses and a corresponding ACL recorded. Changes in estimates of expected credit losses after acquisition are recognized as provision for credit losses in subsequent periods. In general, interest income recognition for PCD financial assets is consistent with interest income recognition for the similar non-PCD financial asset.
Leasing Activity, As a Lessor	Leasing Activity AS LESSOR We lease equipment to our customers under financing or operating leases. Financing leases are presented in loans and are recorded at the discounted amounts of lease payments receivable plus the estimated residual value of the leased asset. Leveraged leases, which are a form of financing leases, are reduced by related non-recourse debt from third-party investors. Lease payments receivable reflect contractual lease payments adjusted for renewal or termination options that we believe the customer is reasonably certain to exercise. The residual value reflects our best estimate of the expected sales price for the equipment at lease termination based on sales history adjusted for recent trends in the expected exit markets. Many of our leases allow the customer to extend the lease at prevailing market terms or purchase the asset for fair value at lease termination. Our allowance for loan losses for financing leases considers both the collectability of the lease payments receivable as well as the estimated residual value of the leased asset. We typically purchase residual value insurance on our financing leases so that our risk of loss at lease termination will be less than 10% of the initial value of the lease. In addition, we have several channels for re-leasing or marketing those assets. In connection with a lease, we m ay finance the customer’s purchase of other products or services from the equipment vendor and allocate the contract consideration between the use of the asset and the purchase of those products or services based on information obtained from the vendor. Amounts allocated to financing of vendor products or services are reported in loans as commercial and industrial loans, rather than as lease financing. Our primary income from financing leases is interest income recognized using the effective interest method. Variable lease revenues, such as reimbursement for property taxes associated with the leased asset, are included in lease income within noninterest income. Operating lease assets are presented in other assets, net of accumulated depreciation. Periodic depreciation expense is recorded on a straight-line basis to the estimated residual value over the estimated useful life of the leased asset. On a periodic basis, operating lease assets are reviewed for impairment and an impairment loss is recognized if the carrying amount of operating lease assets exceeds fair value and is not recoverable. The carrying amount of leased assets is deemed not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the lease payments and the estimated residual value upon the eventual disposition of the equipment. Depreciation expense for operating lease assets is included in other noninterest expense. Impairment charges for operating lease assets are included in other noninterest income. Operating lease rental income for leased assets is recognized in lease income within noninterest income on a straight-line basis over the lease term. Variable revenues on operating leases include reimbursements of costs, including property taxes, which fluctuate over time, as well as rental revenue based on usage. For leases of railcars, revenue for maintenance services provided under the lease is recognized in lease income. We elected to exclude from revenues and expenses any sales tax incurred on lease payments which are reimbursed by the lessee. Substantially all of our leased assets are protected against casualty loss through third-party insurance.
Leasing Activity, As a Lessee	AS LESSEE We enter into lease agreements to obtain the right to use assets for our business operations, substantially all of which are real estate. Lease liabilities and right-of-use (ROU) assets are recognized when we enter into operating or financing leases and represent our obligations and rights to use these assets over the period of the leases and may be re-measured for certain modifications, resolution of certain contingencies involving variable consideration, or our exercise of options (renewal, extension, or termination) under the lease. Operating lease liabilities include fixed and in-substance fixed payments for the contractual duration of the lease, adjusted for renewals or terminations which were considered probable of exercise when measured. The lease payments are discounted using a rate determined when the lease is recognized. As we typically do not know the discount rate implicit in the lease, we estimate a discount rate that we believe approximates a collateralized borrowing rate for the estimated duration of the lease. The discount rate is updated when re-measurement events occur. The related operating lease ROU assets may differ from operating lease liabilities due to initial direct costs, deferred or prepaid lease payments and lease incentives. We present operating lease liabilities in accrued expenses and other liabilities and the related operating lease ROU assets in other assets. The amortization of operating lease ROU assets and the accretion of operating lease liabilities are reported together as fixed lease expense and are included in occupancy expense within noninterest expense. The fixed lease expense is recognized on a straight-line basis over the life of the lease. Some of our operating leases include variable lease payments which are periodic adjustments of our payments for the use of the asset based on changes in factors such as consumer price indices, fair market value rents, tax rates imposed by taxing authorities, or lessor cost of insurance. To the extent not included in operating lease liabilities and operating lease ROU assets, these variable lease payments are recognized as incurred in net occupancy expense within noninterest expense. For substantially all of our leased assets, we account for consideration paid under the contract for maintenance or other services as lease payments. In addition, for certain asset classes, we have elected to exclude leases with original terms of less than one year from the operating lease ROU assets and lease liabilities. The related short-term lease expense is included in net occupancy expense. Finance lease liabilities are presented in long-term debt and the associated finance ROU assets are presented in premises and equipment.
Securitizations and Beneficial Interests	Securitizations and Beneficial Interests Securitizations are transactions in which financial assets are sold to a Special Purpose Entity (SPE), which then issues beneficial interests collateralized by the transferred financial assets. Beneficial interests are generally issued in the form of senior and subordinated interests, and in some cases, we may obtain beneficial interests issued by the SPE. Additionally, from time to time, we may re-securitize certain financial assets in a new securitization transaction. See Note 8 (Securitizations and Variable Interest Entities) for additional information about our involvement with SPEs. The assets and liabilities transferred to a SPE are excluded from our consolidated balance sheet if the transfer qualifies as a sale and we are not required to consolidate the SPE. For transfers of financial assets recorded as sales, we recognize and initially measure at fair value all assets obtained (including beneficial interests or mortgage servicing rights) and all liabilities incurred. We record a gain or loss in noninterest income for the difference between assets obtained (net of liabilities incurred) and the carrying amount of the assets sold. Beneficial interests obtained from, and liabilities incurred in, securitizations with off-balance sheet entities may include debt and equity securities, loans, MSRs, derivative assets and liabilities, other assets, and other obligations such as liabilities for mortgage repurchase losses or long-term debt and are accounted for as described within this Note.
Mortgage Servicing Rights	Mortgage Servicing Rights We recognize MSRs resulting from a sale or securitization of loans that we originate (asset transfers) or through a direct purchase of such rights. We initially record all of our MSRs at fair value. Subsequently, residential loan MSRs are carried at fair value. Commercial MSRs are subsequently measured at LOCOM. The valuation and sensitivity of MSRs is discussed further in Note 8 (Securitizations and Variable Interest Entities), Note 9 (Mortgage Banking Activities) and Note 17 (Fair Values of Assets and Liabilities). For MSRs carried at fair value, changes in fair value are reported in mortgage banking noninterest income in the period in which the change occurs. MSRs subsequently measured at LOCOM are amortized in proportion to, and over the period of, estimated net servicing income. The amortization of MSRs is reported in mortgage banking noninterest income, analyzed monthly and adjusted to reflect changes in prepayment rates, as well as other factors. MSRs accounted for at LOCOM are periodically evaluated for impairment based on the fair value of those assets. For purposes of impairment evaluation and measurement, we stratify MSRs based on the predominant risk characteristics of the underlying loans, including investor and product type. If, by individual stratum, the carrying amount of these MSRs exceeds fair value, a valuation allowance is established. The valuation allowance is adjusted as the fair value changes.
Premises and Equipment	Premises and Equipment Premises and equipment are carried at cost less accumulated depreciation and amortization. We use the straight-line method of depreciation and amortization. Estimated useful lives range up to 40 years for buildings, up to 10 years for furniture and equipment, and the shorter of the estimated useful life (up to
Goodwill and Identifiable Intangible Assets	Goodwill and Identifiable Intangible Assets Goodwill is recorded for business combinations when the purchase price is higher than the fair value of the acquired net assets, including identifiable intangible assets. We assess goodwill for impairment at a reporting unit level on an annual basis or more frequently in certain circumstances. We have determined that our rep orting units are at the reportable operating segment level or one level below. We identify the reporting units based on how the segments and reporting units are managed, taking into consideration the economic characteristics, nature of the products and services, and customers of the segments and reporting units. We allocate goodwill to applicable reporting units based on their relative fair value at the time we acquire a business and when we have a significant business reorganization. If we sell a business, a portion of goodwill is included with the carrying amount of the divested business. We have the option of performing a qualitative assessment of goodwill. We may also elect to bypass the qualitative test and proceed directly to a quantitative test. If we perform a qualitative assessment of goodwill to test for impairment and conclude it is more likely than not that a reporting unit’s fair value is greater than its carrying amount, quantitative tests are not required. However, if we determine it is more likely than not that a reporting unit’s fair value is less than its carrying amount, we complete a quantitative assessment to determine if there is goodwill impairment. We apply various quantitative valuation methodologies, including discounted cash flow and earnings multiple approaches, to determine the estimated fair value, which is compared with the carrying value of each reporting unit. A goodwill impairment loss is recognized if the fair value is less than the carrying amount, including goodwill. The goodwill impairment loss is limited to the amount of goodwill allocated to the reporting unit. We recognize impairment losses as a charge to other noninterest expense and a reduction to the carrying value of goodwill. Subsequent reversals of goodwill impairment are prohibited. We amortize customer relationship intangible assets on an accelerated basis over useful lives not exceeding 10 years. We review intangible assets for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. Impairment is indicated if the sum of undiscounted estimated future net cash flows is less than the carrying value of the asset. Impairment is permanently recognized by writing down the asset to the extent that the carrying value exceeds the estimated fair value.
Derivatives and Hedging Activities	Derivatives and Hedging Activities DERIVATIVES We recognize all derivatives on our consolidated balance sheet at fair value. On the date we enter into a derivative contract, we categorize the derivative as either an accounting hedge, economic hedge or part of our customer accommodation trading and other portfolio. Accounting hedges are either fair value or cash flow hedges. Fair value hedges represent the hedge of the fair value of a recognized asset or liability or an unrecognized firm commitment, including hedges of foreign currency exposure. Cash flow hedges represent the hedge of a forecasted transaction or the variability of cash flows to be paid or received related to a recognized asset or liability. Economic hedges and customer accommodation trading and other derivatives do not qualify for, or we have elected not to apply, hedge accounting. Economic hedges are derivatives we use to manage interest rate, foreign currency and certain other risks associated with our non-trading activities. Customer accommodation trading and other derivatives primarily represents derivatives related to our trading business activities. We report changes in the fair values of these derivatives in noninterest income. FAIR VALUE HEDGES We record changes in the fair value of the derivative in income, except for certain derivatives in which a portion is recorded to OCI. We record basis adjustments to the amortized cost of the hedged asset or liability due to the changes in fair value related to the hedged risk with the offset recorded in earnings. We present derivative gains or losses in the same income statement category as the hedged asset or liability, as follows: • For fair value hedges of interest rate risk, amounts are reflected in net interest income; • For hedges of foreign currency risk, amounts representing the fair value changes less the accrual for periodic cash flow settlements are reflected in noninterest income. The periodic cash flow settlements are reflected in net interest income; • For hedges of both interest rate risk and foreign currency risk, amounts representing the fair value change less the accrual for periodic cash flow settlements is attributed to both net interest income and noninterest income. The periodic cash flow settlements are reflected in net interest income. The entire derivative gain or loss is included in the assessment of hedge effectiveness for all fair value hedge relationships, except for hedges of foreign-currency denominated AFS debt securities and long-term debt liabilities hedged with cross-currency swaps. The change in fair value of these swaps attributable to cross-currency basis spread changes is excluded from the assessment of hedge effectiveness. The initial fair value of the excluded component is amortized to net interest income and the difference between changes in fair value of the excluded component and the amount recorded in earnings is recorded in OCI. CASH FLOW HEDGES We record changes in the fair value of the derivative in OCI. We subsequently reclassify gains and losses from these changes in fair value from OCI to earnings in the same period(s) that the hedged transaction affects earnings and in the same income statement category as the hedged item. For cash flow hedges of interest rate risk associated with floating-rate commercial loans and long-term debt and for cash flow hedges of foreign currency risk associated with fixed-rate long-term debt, these amounts are reflected in net interest income. The entire gain or loss on these derivatives is included in the assessment of hedge effectiveness. DOCUMENTATION AND EFFECTIVENESS ASSESSMENT FOR ACCOUNTING HEDGES For fair value and cash flow hedges qualifying for hedge accounting, we formally document at inception the relationship between hedging instruments and hedged items, our risk management objective, strategy and our evaluation of effectiveness for our hedge transactions. This process includes linking all derivatives designated as fair value or cash flow hedges to specific assets and liabilities on our consolidated balance sheet or to specific forecasted transactions. We assess hedge effectiveness using regression analysis, both at inception of the hedging relationship and on an ongoing basis. For fair value hedges, the regression analysis involves regressing the periodic change in fair value of the hedging instrument against the periodic changes in fair value of the asset or liability being hedged due to changes in the hedged risk(s). For cash flow hedges, the regression analysis involves regressing the periodic changes in fair value of the hedging instrument against the periodic changes in fair value of a hypothetical derivative. The hypothetical derivative has terms that identically match and offset the cash flows of the forecasted transaction being hedged due to changes in the hedged risk(s). The initial assessment for fair value and cash flow hedges includes an evaluation of the quantitative measures of the regression results used to validate the conclusion of high effectiveness. Periodically, as required, we also formally assess whether the derivative we designated in each hedging relationship is expected to be and has been highly effective in offsetting changes in fair values or cash flows of the hedged item using the regression analysis method. DISCONTINUING HEDGE ACCOUNTING We discontinue hedge accounting prospectively when (1) a derivative is no longer highly effective in offsetting changes in the fair value or cash flows of a hedged item, (2) a derivative expires or is sold, terminated or exercised, (3) we elect to discontinue the designation of a derivative as a hedge, or (4) in a cash flow hedge, a derivative is de-designated because it is no longer probable that a forecasted transaction will occur. When we discontinue fair value hedge accounting, we no longer adjust the previously hedged asset or liability for changes in fair value. The remaining cumulative adjustments to the hedged item and accumulated amounts reported in OCI are accounted for in the same manner as other components of the carrying amount of the asset or liability. For example, for financial debt instruments such as AFS debt securities, loans or long-term debt, these amounts are amortized into net interest income over the remaining life of the asset or liability similar to other amortized cost basis adjustments. If the hedged item is derecognized, the accumulated amounts reported in OCI are immediately reclassified to net interest income. If the derivative continues to be held after fair value hedge accounting ceases, we carry the derivative on the consolidated balance sheet at its fair value with changes in fair value included in noninterest income. When we discontinue cash flow hedge accounting and it is probable that the forecasted transaction will occur, the accumulated amount reported in OCI at the de-designation date continues to be reported in OCI until the forecasted transaction affects earnings at which point the related OCI amount is reclassified to net interest income. If cash flow hedge accounting is discontinued and it is probable the forecasted transaction will no longer occur, the accumulated gains and losses reported in OCI at the de-designation date is immediately reclassified to noninterest income. If the derivative continues to be held after cash flow hedge accounting ceases, we carry the derivative on our consolidated balance sheet at its fair value with changes in fair value included in noninterest income. EMBEDDED DERIVATIVES We may purchase or originate financial instruments that contain an embedded derivative. At inception of the financial instrument, we assess (1) if the economic characteristics of the embedded derivative are not clearly and closely related to the economic characteristics of the host contract, (2) if the financial instrument that embodies both the embedded derivative and the host contract is not measured at fair value with changes in fair value reported in earnings, and (3) if a separate instrument with the same terms as the embedded instrument would meet the definition of a derivative. If the embedded derivative meets all of these conditions, we separate it from the hybrid contract by recording the bifurcated derivative at fair value and the remaining host contract at the difference between the basis of the hybrid instrument and the fair value of the bifurcated derivative. The bifurcated derivative is carried at fair value with changes recorded in noninterest income and reported within our consolidated balance sheet as a derivative asset or liability. The accounting for the remaining host contract is the same as other assets and liabilities of a similar type and reported within our consolidated balance sheet based upon the accounting classification of the instrument. COUNTERPARTY CREDIT RISK AND NETTING By using derivatives, we are exposed to counterparty credit risk, which is the risk that counterparties to the derivative contracts do not perform as expected. If a counterparty fails to perform, our counterparty credit risk is equal to the amount reported as a derivative asset on our consolidated balance sheet. The amounts reported as a derivative asset are derivative contracts in a gain position, and to the extent subject to legally enforceable master netting arrangements, net of derivatives in a loss position with the same counterparty and cash collateral received. We minimize counterparty credit risk through credit approvals, limits, monitoring procedures, executing master netting arrangements and obtaining collateral, where appropriate. Counterparty credit risk related to derivatives is considered in determining fair value and our assessment of hedge effectiveness. To the extent derivatives subject to master netting arrangements meet the applicable requirements, including determining the legal enforceability of the arrangement, it is our policy to present derivative balances and related cash collateral amounts net on our consolidated balance sheet. We incorporate adjustments to reflect counterparty credit risk (credit valuation adjustments (CVA)) in determining the fair value of our derivatives. CVA, which considers the effects of enforceable master netting agreements and collateral arrangements, reflects market-based views of the credit quality of each counterparty. We estimate CVA based on observed credit spreads in the credit default swap market and indices indicative of the credit quality of the counterparties to our derivatives. Cash collateral exchanged related to our interest rate derivatives, and certain commodity and equity derivatives, with centrally cleared counterparties is recorded as a reduction of the derivative fair value asset and liability balances, as opposed to separate non-derivative receivables or payables. This cash collateral, also referred to as variation margin, is exchanged based upon derivative fair value changes, typically on a one-day lag. For additional information on our derivatives and hedging activities, see Note 16 (Derivatives).
Pension Accounting	Pension Accounting 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. We also sponsor nonqualified defined benefit plans that provide supplemental defined benefit pension benefits to certain eligible employees. We account for our defined benefit pension plans using an actuarial model. Principal assumptions used in determining the net periodic pension cost and the pension obligation include the discount rate, the expected long-term rate of return on plan asset s and projected mortality rates. A single weighted-average discount rate is used to estimate the present value of our future pension benefit obligations. We determine the discount rate using a yield curve derived from a broad-based population of high-quality corporate bonds with maturity dates that closely match the estimated timing of the expected benefit payments. On December 31, 2021, we changed the method used to estimate the interest cost component of pension expense for our principal defined benefit and postretirement plans to the full yield curve approach. The full yield curve approach aligns specific spot rates along the yield curve to the projected benefit payment cash flows. This change does not affect the measurement of our pension obligation as the change in interest cost is offset in the actuarial gain (loss). We accounted for this change prospectively as a change in estimate to our pension expense. Previously, we estimated the interest cost component utilizing a single weighted-average discount rate. We made this change to improve the correlation between the yield curve and the projected benefit payment cash flows. Our determination of the reasonableness of our expected long-term rate of return on plan assets is highly quantitative by nature. We evaluate the current asset allocations and expected returns under two sets of conditions: (1) projected returns using several forward-looking capital market assumptions, and (2) historical returns for the main asset classes, which allows us to capture multiple economic cycles. We place greater emphasis on the forward-looking return and risk assumptions than on historical results. We use the resulting projections to derive a baseline expected rate of return and risk level for the Cash Balance Plan’s prescribed asset mix. Mortality rate assumptions are based on mortality tables published by the Society of Actuaries adjusted to reflect our specific experience. At year end, we re-measure our defined benefit plan liabilities and related plan assets and recognize any resulting actuarial gain or loss in OCI. We generally amortize net actuarial gain or loss in excess of a 5% corridor from accumulated OCI into net periodic pension cost over the estimated average remaining participation period, which at December 31, 2021, is 19 years. See Note 21 (Employee Benefits and Other Expenses) for additional information on our pension accounting.
Income Taxes	Income Taxes We file income tax returns in the jurisdictions in which we operate and evaluate income tax expense in two components: current and deferred income tax expense. Current income tax expense represents our estimated taxes to be paid or refunded for the current period and includes income tax expense related to uncertain tax positions. Uncertain tax positions that meet the more likely than not recognition threshold are measured to determine the amount of benefit to recognize. An uncertain tax position is measured at the largest amount of benefit that management believes has a greater than 50% likelihood of realization upon settlement. Tax benefits not meeting our realization criteria represent unrecognized tax benefits. Deferred income taxes are based on the balance sheet method and deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Under the balance sheet method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax basis of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred tax assets are recognized subject to management’s judgment that realization is more likely than not. A valuation allowance reduces deferred tax assets to the realizable amount.
Stock-Based Compensation	Stock-Based Compensation We have stock-based employee compensation plans as more fully discussed in Note 19 (Common Stock and Stock Plans). Our Long-Term Incentive Compensation Plan provides awards for employee services in the form of incentive and nonqualified stock options, stock appreciation rights, restricted shares, restricted share rights (RSRs), performance share awards (PSAs) and stock awards without restrictions. Stock options have not been issued in the last three years and no stock options were outstanding at December 31, 2021 and 2020. Stock-based awards are measured at fair value on the grant date. The cost is recognized in personnel expense, net of actual forfeitures, in o ur consolidated statement of income normally over the vesting period of the award; awards with graded vesting are expensed on a straight-line method. Awards to employees who are retirement eligible at the grant date are subject to immediate expensing upon grant. Awards to employees who become retirement eligible before the final vesting date are expensed between the grant date and the date the employee becomes retirement eligible. Except for retirement and other limited circumstances, RSRs are canceled when employment ends. PSAs and certain RSRs granted in 2019 and 2020 included discretionary conditions that can result in forfeiture and are measured at fair value initially and subsequently until the discretionary conditions end. For these awards, the associated compensation expense fluctuates with changes in our stock price. Awards granted in 2021 no longer included these discretionary conditions and are not adjusted for subsequent changes in stock price. For PSAs, compensation expense also fluctuates based on the estimated outcome of meeting the performance conditio ns. The total expense that will be recognized on these awards is finalized upon the completion of the performance period (the determination of which awards will vest is a combination of performance conditions and discretion).
Earnings Per Common Share	Earnings Per Common Share We compute earnings per common share by dividing net income applicable to common stock (net income less dividends on preferred stock and the excess of consideration transferred over carrying value of preferred stock redeemed, if any) by the average number of common shares outstanding during the period. We compute diluted earnings per common share using net income applicable to common stock and adding the effect of common stock equivalents (e.g., restricted share rights) that are dilutive to the average number of common shares outstanding during the period.
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities Fair value represents the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is based on an exit price notion that maximizes the use of observable inputs and minimizes the use of unobservable inputs. We measure our assets and liabilities at fair value when we are required to record them at fair value, when we have elected the fair value option, and to fulfill fair value disclosure requirements. Assets and liabilities are recorded at fair value on a recurring or nonrecurring basis. Assets and liabilities that are recorded at fair value on a recurring basis require a fair value measurement at each reporting period. Assets and liabilities that are recorded at fair value on a nonrecurring basis are adjusted to fair value only as required through the application of an accounting method such as LOCOM, the measurement alternative, or write-downs of individual assets. We classify our assets and liabilities measured at fair value based upon a three-level hierarchy that assigns the highest priority to unadjusted quoted prices in active markets and the lowest priority to unobservable inputs. The three levels are as follows: • Level 1 – Valuation is based upon quoted prices for identical instruments traded in active markets. • Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. • Level 3 – Valuation is generated from techniques that use significant assumptions that are not observable in the market. These unobservable assumptions reflect our estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of discounted cash flow models, market comparable pricing, option pricing models, and similar techniques. We monitor the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy and transfers between Level 1, Level 2, and Level 3 accordingly. Observable market data includes but is not limited to quoted prices and market transactions. Changes in economic conditions or market liquidity generally will drive changes in availability of observable market data. Changes in availability of observable market data, which also may result in changing the valuation technique used, are generally the cause of transfers between Level 1, Level 2, and Level 3. The amounts reported as transfers represent the fair value as of the beginning of the quarter in which the transfer occurred. See Note 17 (Fair Values of Assets and Liabilities) for a more detailed discussion of the valuation methodologies that we apply to our assets and liabilities.
Subsequent Events	Subsequent Events
Trading activities [Member]
Significant Accounting Policies [Line Items]
Marketable and Nonmarketable Securities, Policy	Trading Activities We engage in trading activities to accommodate the investment and risk management activities of our customers. These activities predominantly occur in our Corporate and Investment Banking reportable operating segment. Trading assets and liabilities include debt securities, equity securities, loans held for sale, derivatives and short sales, which are reported within our consolidated balance sheet based on the accounting classification of the instrument. In addition, debt securities that are held for investment purposes that we have elected to account for under the fair value method, are classified as trading. Our trading assets and liabilities are carried on our consolidated balance sheet at fair value with changes in fair value recognized in net gains on trading and securities within noninterest income. Interest income and interest expense are recognized in net interest income. Customer accommodation trading activities include our actions as an intermediary to buy and sell financial instruments and market-making activities. We also take positions to manage our exposure to customer accommodation activities. We hold financial instruments for trading in long positions, as well as short positions, to facilitate our trading activities. As an intermediary, we interact with market buyers and sellers to facilitate the purchase and sale of financial instruments to meet the anticipated or current needs of our customers. For example, we may purchase or sell a derivative to a customer who wants to manage interest rate risk exposure. We typically enter into an offsetting derivative or security position to manage our exposure to the customer transaction. We earn income based on the transaction price difference between the customer transaction and the offsetting position, which is reflected in earnings where the fair value changes and related interest income and expense of the positions are recorded.
Debt securities [Member]
Significant Accounting Policies [Line Items]
Marketable and Nonmarketable Securities, Policy	Debt Securities Our investments in debt securities that are not held for trading purposes are classified as either debt securities available-for-sale (AFS) or held-to-maturity (HTM). Investments in debt securities for which the Company does not have the positive intent and ability to hold to maturity are classified as AFS. AFS debt securities are measured at fair value, with unrealized gains and losses reported in cumulative other comprehensive income (OCI). The amount reported in OCI is net of the allowance for credit losses (ACL) and applicable income taxes. Investments in debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM. HTM debt securities are measured at amortized cost, net of ACL. INTEREST INCOME AND GAIN/LOSS RECOGNITION Unamortized premiums and discounts are recognized in interest income over the contractual life of the security using the effective interest method, except for purchased callable debt securities carried at a premium. For purchased callable debt securities carried at a premium, the premium is amortized into interest income to the next call date using the effective interest method. As principal repayments are received on securities (e.g., mortgage-backed securities (MBS)), a proportionate amount of the related premium or discount is recognized in income so that the effective interest rate on the remaining portion of the security continues unchanged. We recognize realized gains and losses on the sale of debt securities in net gains on trading and securities within noninterest income using the specific identification method. IMPAIRMENT AND CREDIT LOSSES Unrealized losses on AFS debt securities are driven by a number of factors, including changes in interest rates and credit spreads which impact most types of debt securities, and prepayment rates which impact MBS and collateralized loan obligations (CLO). Additional considerations for certain types of AFS debt securities include: • Debt securities of U.S. Treasury and federal agencies, including federal agency MBS, are not impacted by credit movements given the explicit or implicit guarantees provided by the U.S. government. • Debt securities of U.S. states and political subdivisions are most impacted by changes in the relationship between municipal and term funding credit curves rather than by changes in the credit quality of the underlying securities. • Structured securities, such as MBS and CLO, are also impacted by changes in projected collateral losses of assets underlying the security. For AFS debt securities where fair value is less than amortized cost basis, we recognize impairment in earnings if we have the intent to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. Impairment is recognized in net gains on trading and securities within noninterest income equal to the difference between the amortized cost basis, net of ACL, and the fair value of the AFS debt security. Following the recognition of this impairment, the AFS debt security’s new amortized cost basis is fair value. For AFS debt securities where fair value is less than amortized cost basis where we did not recognize impairment in earnings, we record an ACL as of the balance sheet date to the extent unrealized loss is due to credit losses. See the “Allowance for Credit Losses” section in this Note for our accounting policies relating to the ACL for debt securities, which also includes debt securities classified as HTM. TRANSFERS BETWEEN CATEGORIES OF DEBT SECURITIES Upon transfer of a debt security from the AFS to HTM classification, the amortized cost is reset to fair value adjusted for any ACL previously recorded under the AFS debt security model. Unrealized gains or losses at the transfer date continue to be reported in cumulative OCI. The cumulative OCI balance is amortized into earnings over the same period as the unamortized premiums and discounts using the effective interest method. Any ACL previously recorded under the AFS debt security model is reversed and an ACL under the HTM debt security model is re-established. The reversal and re-establishment of the ACL are recorded in provision for credit losses. NONACCRUAL AND PAST DUE, AND CHARGE-OFF POLICIES We generally place debt securities on nonaccrual status using factors similar to those described for loans. When we place a debt security on nonaccrual status, we reverse the accrued unpaid interest receivable against interest income and suspend the amortization of premiums and accretion of discounts. If the ultimate collectability of the principal is in doubt on a nonaccrual debt security, any cash collected is first applied to reduce the security’s amortized cost basis to zero, followed by recovery of amounts previously charged off, and subsequently to interest income. Generally, we return a debt security to accrual status when all delinquent interest and principal become current under the contractual terms of the security and collectability of remaining principal and interest is no longer doubtful. Our debt securities are considered past due when contractually required principal or interest payments have not been made on the due dates. Our charge-off policy for debt securities are similar to those described for loans. Subsequent to charge-off, the debt security will be designated as nonaccrual and follow the process described above for any cash received.
Equity securities [Member]
Significant Accounting Policies [Line Items]
Marketable and Nonmarketable Securities, Policy	Equity Securities Equity securities exclude investments that represent a controlling interest in the investee. Marketable equity securities have readily determinable fair values and include, but are not limited to securities used in our trading activities. Marketable equity securities are recorded at fair value with realized and unrealized gains and losses recognized in net gains on trading and securities in noninterest income. Dividend income from marketable equity securities is recognized in interest income. N onmarketable equity securities do not have readily determinable fair values. These securities are accounted for under one of the following accounting methods: • Fair value through net income: This method is an election. The securities are recorded at fair value with unrealized gains or losses reflected in noninterest income; • Equity method: This method is applied when we have the ability to exert significant influence over the investee. The securities are recorded at cost and adjusted for our share of the investee’s earnings or losses, less any dividends received and/or impairments. Equity method adjustments for our share of the investee’s earnings or losses are recognized in other noninterest income and dividends are recognized as a reduction of the investment carrying value; • Proportional amortization method: This method is applied to certain low-income housing tax credit (LIHTC) investments. 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; • Cost method: This method is required for specific securities, such as Federal Reserve Bank stock and Federal Home Loan Bank stock. These securities are held at amortized cost less any impairments; • Measurement alternative: This method is followed by all remaining nonmarketable equity securities. These securities are initially recorded at cost and are remeasured to fair value as of the date of an orderly observable transaction of the same or similar security of the same issuer. These securities are also adjusted for impairments. All realized and unrealized gains and losses, including impairment losses, from nonmarketable equity securities are recognized in net gains on trading and securities in noninterest income. Dividend income from all nonmarketable equity securities, other than equity method securities, is recognized in interest income.
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 such reference rates 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 2021. The Update did not have a material impact on our consolidated financial statements.
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)	12 Months Ended
	Dec. 31, 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 statements 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 Year ended December 31, 2020 Year ended December 31, 2019 Effect of accounting policy changes ($) Effect of accounting ($ 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 $ 34,109 — 121 34,230 44,146 — 72 44,218 Noninterest income 32,505 1,507 296 34,308 37,832 1,486 211 39,529 Income tax expense (benefit) (3,005) 1,431 417 (1,157) 4,157 1,321 283 5,761 Net income 3,301 76 — 3,377 19,549 166 — 19,715 Earnings per common share 0.42 0.01 — 0.43 4.08 0.04 — 4.12 Diluted earnings per common share 0.41 0.02 — 0.43 4.05 0.04 — 4.09 At December 31, 2020 Effect of accounting 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 (67) (1,977) 74,360 Retained earnings 162,890 (207) — 162,683
Accounting Model for Financial Assets and Financial Liabilities	Table 1.2 summarizes financial assets and liabilities by form and measurement accounting model. Table 1.2: Accounting Model for Financial Assets and Financial Liabilities Balance sheet caption Measurement model(s) Financial statement Note reference Cash and due from banks Amortized cost Note 28: Regulatory Capital Requirements and Other Restrictions Interest-earning deposits with banks Amortized cost Note 28: Regulatory Capital Requirements and Other Restrictions Federal funds sold and securities purchased under resale agreements Amortized cost N/A Debt securities: Trading FV-NI (1) Note 2: Trading Activities Available-for-sale FV-OCI (2) Note 3: Available-for-Sale and Held-to-Maturity Debt Securities Held-to-maturity Amortized cost Note 3: Available-for-Sale and Held-to-Maturity Debt Securities Loans held for sale FV-NI (1) Note 2: Trading Activities Loans Amortized cost Note 4: Loans and Related Allowance for Credit Losses Derivative assets and liabilities FV-NI (1) FV-OCI (2) Note 2: Trading Activities Equity securities: Marketable FV-NI (1) Note 2: Trading Activities Nonmarketable FV-NI (1) Equity method Proportional amortization method Cost method Measurement alternative Note 6: Equity Securities Other assets Amortized cost (4) Note 5: Leasing Activity Deposits Amortized cost Note 11: Deposits Short-term borrowings Amortized cost N/A Accrued expenses and other liabilities Amortized cost (5) Note 2: Trading Activities Long-term debt Amortized cost Note 12: Long-Term Debt (1) FV-NI represents the fair value through net income accounting model. (2) FV-OCI represents the fair value through other comprehensive income accounting model. (3) LOCOM represents the lower of cost or fair value accounting model. (4) Other assets are generally measured at amortized cost, except for bank-owned life insurance which is measured at cash surrender value. (5) Accrued expenses and other liabilities are generally measured at amortized cost, except for short-sale trading liabilities which are measured at FV-NI.
Key Economic Variables	See Table 1.3 for key economic variables used for our loan portfolios. Table 1.3: Key Economic Variables Loan Portfolio Key economic variables Total commercial • Gross domestic product • Commercial real estate asset prices, where applicable • Unemployment rate Residential mortgage • Home price index • Unemployment rate Other consumer (including credit card, auto, and other consumer) • Unemployment rate
Supplemental Cash Flow Information	Supplemental Cash Flow Information Significant noncash activities are presented in Table 1.4. Table 1.4: Supplemental Cash Flow Information Year ended December 31, (in millions) 2021 2020 2019 Available-for-sale debt securities purchased from securitization of LHFS (1) $ 3,096 21,768 — Held-to-maturity debt securities purchased from securitization of LHFS (1) 20,265 9,912 289 Transfers from loans to LHFS 19,297 19,975 6,453 Transfers from available-for-sale debt securities to held-to-maturity debt securities 55,993 31,815 13,833 Operating lease ROU assets acquired with operating lease liabilities (2) 530 658 5,804 (1) 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) Includes amounts attributable to new leases and changes from modified leases. The year ended December 31, 2019, balance also includes $4.9 billion from adoption of ASU 2016-02 – Leases (Topic 842).

Trading Activities (Tables)

Trading Activities (Tables)	12 Months Ended
	Dec. 31, 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) Dec 31, Dec 31, Trading assets: Debt securities $ 88,265 75,095 Equity securities 27,476 23,032 Loans held for sale 3,242 1,015 Gross trading derivative assets 48,325 58,767 Netting (1) (28,146) (34,301) Total trading derivative assets 20,179 24,466 Total trading assets 139,162 123,608 Trading liabilities: Short sale 20,685 22,441 Gross trading derivative liabilities 42,449 53,285 Netting (1) (33,978) (39,444) Total trading derivative liabilities 8,471 13,841 Total trading liabilities $ 29,156 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 Year ended December 31, (in millions) 2021 2020 2019 Interest income: Debt securities $ 2,086 2,530 3,130 Equity securities 441 366 579 Loans held for sale 40 30 78 Total interest income 2,567 2,926 3,787 Less: Interest expense 405 442 525 Net interest income 2,162 2,484 3,262 Net gains (losses) from trading activities (1): Debt securities (1,796) 2,697 1,053 Equity securities 4,491 (630) 4,795 Loans held for sale 54 28 12 Derivatives (2) (2,465) (923) (4,867) Total net gains from trading activities 284 1,172 993 Total trading-related net interest and noninterest income $ 2,446 3,656 4,255 (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)	12 Months Ended
	Dec. 31, 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 (Premises, Equipment and Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. The interest income reversed for the years ended 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 December 31, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ 39,668 185 (192) 39,661 Non-U.S. government securities 71 — — 71 Securities of U.S. states and political subdivisions (2) 16,618 350 (51) 16,917 Federal agency mortgage-backed securities 104,661 1,807 (582) 105,886 Non-agency mortgage-backed securities (3) 4,515 32 (15) 4,532 Collateralized loan obligations 5,713 2 (7) 5,708 Other debt securities 4,217 259 (7) 4,469 Total available-for-sale debt securities 175,463 2,635 (854) 177,244 Held-to-maturity debt securities: Securities of U.S. Treasury and federal agencies 16,544 599 (318) 16,825 Securities of U.S. states and political subdivisions 32,689 847 (61) 33,475 Federal agency mortgage-backed securities 188,909 1,882 (2,807) 187,984 Non-agency mortgage-backed securities (3) 1,082 31 (18) 1,095 Collateralized loan obligations 31,067 194 (2) 31,259 Other debt securities 1,731 17 — 1,748 Total held-to-maturity debt securities 272,022 3,570 (3,206) 272,386 Total $ 447,485 6,205 (4,060) 449,630 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 (3) 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 $ 421,253 11,913 (467) 432,699 (1) Represents amortized cost of the securities, net of the ACL of $8 million and $28 million related to AFS debt securities and $96 million and $41 million related to HTM debt securities at December 31, 2021 and 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 December 31, 2021, and $5.0 billion at December 31, 2020. (3) Predominantly consists of commercial mortgage-backed securities at both December 31, 2021 and 2020.
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 Year ended December 31, (in millions) 2021 2020 2019 Purchases of held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies $ — 3,016 757 Securities of U.S. states and political subdivisions 5,198 1,906 1,583 Federal agency mortgage-backed securities 76,010 51,320 6,610 Non-agency mortgage-backed securities 235 126 288 Collateralized loan obligations 9,379 688 — Total purchases of held-to-maturity debt securities 90,822 57,056 9,238 Transfers from available-for-sale debt securities to held-to-maturity debt securities: Securities of U.S. states and political subdivisions 2,954 10,721 5,912 Federal agency mortgage-backed securities 41,298 5,522 7,921 Collateralized loan obligations 10,003 15,572 — Other debt securities 1,738 — — Total transfers from available-for-sale debt securities to held-to-maturity debt securities $ 55,993 31,815 13,833
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 Year ended December 31, (in millions) 2021 2020 2019 Interest income (1): Available-for-sale $ 2,808 4,992 8,092 Held-to-maturity 4,359 3,712 3,733 Total interest income 7,167 8,704 11,825 Provision for credit losses (2): Available-for-sale (2) 89 — Held-to-maturity 54 35 — Total provision for credit losses 52 124 — Realized gains and losses (3): Gross realized gains 571 931 227 Gross realized losses (10) (43) (24) Impairment write-downs (8) (15) (63) Net realized gains $ 553 873 140 (1) Excludes interest income from trading debt securities, which is disclosed in Note 2 (Trading Activities). (2) Prior to our adoption of CECL on January 1, 2020, the provision for credit losses from debt securities was not applicable and is therefore presented as $0 for 2019. (3) Realized gains and losses relate to AFS debt securities. There were no realized gains or losses from HTM debt securities in all periods presented.
Investment Grade Debt Securities	Table 3.4 shows the percentage of fair value of AFS debt securities and amortized cost of HTM debt securities determined to be rated investment grade, inclusive of securities rated based on internal credit grades. Table 3.4: Investment Grade Debt Securities Available-for-Sale Held-to-Maturity ($ in millions) Fair value % investment grade Amortized cost % investment grade December 31, 2021 Total portfolio (1) $ 177,244 99 % 272,118 99 % Breakdown by category: Securities of U.S. Treasury and federal agencies (2) $ 145,547 100 % 205,453 100 % Securities of U.S. states and political subdivisions 16,917 99 32,704 100 Collateralized loan obligations (3) 5,708 100 31,128 100 All other debt securities (4) 9,072 88 2,833 64 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) 98% and 92% were rated AA- and above at December 31, 2021 and 2020, respectively. (2) Includes federal agency mortgage-backed securities. (3) 100% and 98% were rated AA- and above at December 31, 2021 and 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 December 31, 2021 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies $ (192) 24,418 — — (192) 24,418 Non-U.S. government securities — — — — — — Securities of U.S. states and political subdivisions (36) 2,308 (15) 532 (51) 2,840 Federal agency mortgage-backed securities (334) 40,695 (248) 9,464 (582) 50,159 Non-agency mortgage-backed securities (4) 1,966 (11) 543 (15) 2,509 Collateralized loan obligations (3) 1,619 (4) 1,242 (7) 2,861 Other debt securities — — (7) 624 (7) 624 Total available-for-sale debt securities $ (569) 71,006 (285) 12,405 (854) 83,411 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 December 31, 2021 Available-for-sale debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 39,668 — 18,787 18,874 2,007 Fair value 39,661 — 18,739 18,768 2,154 Weighted average yield 0.79 % — 0.34 1.16 1.44 Non-U.S. government securities Amortized cost, net $ 71 3 68 — — Fair value 71 3 68 — — Weighted average yield 0.33 % 1.49 0.28 — — Securities of U.S. states and political subdivisions Amortized cost, net $ 16,618 696 2,115 5,719 8,088 Fair value 16,917 697 2,135 5,713 8,372 Weighted average yield 1.92 % 1.22 1.10 1.38 2.58 Federal agency mortgage-backed securities Amortized cost, net $ 104,661 1 219 2,665 101,776 Fair value 105,886 1 228 2,742 102,915 Weighted average yield 2.53 % 2.40 3.17 2.30 2.53 Non-agency mortgage-backed securities Amortized cost, net $ 4,515 — — 143 4,372 Fair value 4,532 — — 142 4,390 Weighted average yield 1.93 % — — 2.32 1.92 Collateralized loan obligations Amortized cost, net $ 5,713 — 23 5,212 478 Fair value 5,708 — 23 5,207 478 Weighted average yield 1.42 % — 2.22 1.41 1.45 Other debt securities Amortized cost, net $ 4,217 98 419 1,063 2,637 Fair value 4,469 97 419 1,065 2,888 Weighted average yield 1.61 % 1.56 1.27 1.46 1.72 Total available-for-sale debt securities Amortized cost, net $ 175,463 798 21,631 33,676 119,358 Fair value 177,244 798 21,612 33,637 121,197 Weighted average yield 2.00 % 1.26 0.46 1.34 2.47 (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 December 31, 2021 Held-to-maturity debt securities (1): Securities of U.S. Treasury and federal agencies Amortized cost, net $ 16,544 350 12,410 — 3,784 Fair value 16,825 350 12,889 — 3,586 Weighted average yield 2.17 % 1.55 2.37 — 1.57 Securities of U.S. states and political subdivisions Amortized cost, net $ 32,689 1,338 3,243 2,126 25,982 Fair value 33,475 1,350 3,307 2,191 26,627 Weighted average yield 2.10 % 2.34 1.31 2.59 2.15 Federal agency mortgage-backed securities Amortized cost, net $ 188,909 — — — 188,909 Fair value 187,984 — — — 187,984 Weighted average yield 2.15 % — — — 2.15 Non-agency mortgage-backed securities Amortized cost, net $ 1,082 15 13 29 1,025 Fair value 1,095 15 13 30 1,037 Weighted average yield 2.99 % 1.55 2.90 3.16 3.00 Collateralized loan obligations Amortized cost, net $ 31,067 — — 13,019 18,048 Fair value 31,259 — — 13,153 18,106 Weighted average yield 1.53 % — — 1.60 1.48 Other debt securities Amortized cost, net $ 1,731 — 764 967 — Fair value 1,748 — 767 981 — Weighted average yield 4.51 % — 4.13 4.81 — Total held-to-maturity debt securities Amortized cost, net $ 272,022 1,703 16,430 16,141 237,748 Fair value 272,386 1,715 16,976 16,355 237,340 Weighted average yield 2.09 % 2.17 2.24 1.92 2.09 (1) Weighted average yields displayed by maturity bucket are weighted based on amortized cost and are shown pre-tax.

Loans and Related Allowance f_2

Loans and Related Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 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 December 31, 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 (Premises, Equipment and Other Assets) for additional information on accrued interest receivable. Amounts considered to be uncollectible are reversed through interest income. During 2021, we reversed accrued interest receivable of $44 million for our commercial portfolio segment and $175 million for our consumer portfolio segment, compared with $43 million and $195 million, respectively, for 2020. Table 4.1: Loans Outstanding December 31, (in millions) 2021 2020 Commercial: Commercial and industrial $ 350,436 318,805 Real estate mortgage 127,733 121,720 Real estate construction 20,092 21,805 Lease financing 14,859 16,087 Total commercial 513,120 478,417 Consumer: Residential mortgage – first lien 242,270 276,674 Residential mortgage – junior lien 16,618 23,286 Credit card 38,453 36,664 Auto 56,659 48,187 Other consumer 28,274 24,409 Total consumer 382,274 409,220 Total loans $ 895,394 887,637 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 December 31, (in millions) 2021 2020 Non-U.S. commercial loans: Commercial and industrial $ 77,365 63,128 Real estate mortgage 7,070 7,278 Real estate construction 1,582 1,603 Lease financing 680 629 Total non-U.S. commercial loans $ 86,697 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 Year ended December 31, 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Purchases $ 380 6 386 1,310 6 1,316 Sales (2,534) (188) (2,722) (4,141) (114) (4,255) Transfers (to)/from LHFS (1,550) (55) (1,605) (1,294) (11,198) (12,492)
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) Dec 31, Dec 31, Commercial: Commercial and industrial $ 404,292 378,167 Real estate mortgage 11,515 7,993 Real estate construction 19,943 15,650 Total commercial 435,750 401,810 Consumer: Residential mortgage – first lien 32,992 31,530 Residential mortgage – junior lien 27,447 32,820 Credit card 130,743 121,096 Other consumer 59,789 49,179 Total consumer 250,971 234,625 Total unfunded credit commitments $ 686,721 636,435
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 $5.9 billion from December 31, 2020, reflecting better portfolio credit quality and continued improvements in current and forecasted economic conditions. Table 4.5: Allowance for Credit Losses for Loans Year ended December 31, ($ in millions) 2021 2020 Balance, beginning of year $ 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 year, adjusted 19,713 9,127 Provision for credit losses (4,207) 14,005 Interest income on certain loans (3) (145) (153) Loan charge-offs: Commercial: Commercial and industrial (517) (1,440) Real estate mortgage (98) (302) Real estate construction (1) — Lease financing (46) (107) Total commercial (662) (1,849) Consumer: Residential mortgage – first lien (167) (90) Residential mortgage – junior lien (93) (88) Credit card (1,189) (1,504) Auto (497) (536) Other consumer (423) (458) Total consumer (2,369) (2,676) Total loan charge-offs (3,031) (4,525) Loan recoveries: Commercial: Commercial and industrial 299 201 Real estate mortgage 45 19 Real estate construction 1 19 Lease financing 22 20 Total commercial 367 259 Consumer: Residential mortgage – first lien 114 95 Residential mortgage – junior lien 163 143 Credit card 389 365 Auto 316 266 Other consumer 108 108 Total consumer 1,090 977 Total loan recoveries 1,457 1,236 Net loan charge-offs (1,574) (3,289) Other 1 23 Balance, end of year $ 13,788 19,713 Components: Allowance for loan losses $ 12,490 18,516 Allowance for unfunded credit commitments 1,298 1,197 Allowance for credit losses $ 13,788 19,713 Net loan charge-offs as a percentage of average total loans 0.18 % 0.35 Allowance for loan losses as a percentage of total loans 1.39 2.09 Allowance for credit losses for loans as a percentage of total loans 1.54 2.22 (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 this Report. (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 Year ended December 31, 2021 2020 (in millions) Commercial Consumer Total Commercial Consumer Total Balance, beginning of year $ 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 year, adjusted 11,516 8,197 19,713 3,384 5,743 9,127 Provision for credit losses (3,373) (834) (4,207) 9,770 4,235 14,005 Interest income on certain loans (3) (58) (87) (145) (61) (92) (153) Loan charge-offs (662) (2,369) (3,031) (1,849) (2,676) (4,525) Loan recoveries 367 1,090 1,457 259 977 1,236 Net loan charge-offs (295) (1,279) (1,574) (1,590) (1,699) (3,289) Other 1 — 1 13 10 23 Balance, end of year $ 7,791 5,997 13,788 11,516 8,197 19,713 (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 this Report. (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 and credit quality information by origination year 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 December 31, 2021, we had $485.4 billion and $27.8 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 December 31, 2021 Commercial and industrial Pass $ 65,562 15,193 20,553 7,400 3,797 13,985 211,452 679 338,621 Criticized 1,657 884 1,237 1,256 685 551 5,528 17 11,815 Total commercial and industrial 67,219 16,077 21,790 8,656 4,482 14,536 216,980 696 350,436 Real estate mortgage Pass 38,196 15,929 19,013 12,618 7,451 16,026 5,411 3 114,647 Criticized 3,462 1,119 2,975 1,834 875 2,421 400 — 13,086 Total real estate mortgage 41,658 17,048 21,988 14,452 8,326 18,447 5,811 3 127,733 Real estate construction Pass 5,895 4,058 4,549 2,167 379 329 1,042 2 18,421 Criticized 510 266 586 234 68 7 — — 1,671 Total real estate construction 6,405 4,324 5,135 2,401 447 336 1,042 2 20,092 Lease financing Pass 4,100 3,012 2,547 1,373 838 1,805 — — 13,675 Criticized 284 246 282 184 86 102 — — 1,184 Total lease financing 4,384 3,258 2,829 1,557 924 1,907 — — 14,859 Total commercial loans $ 119,666 40,707 51,742 27,066 14,179 35,226 223,833 701 513,120 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 December 31, 2021 By delinquency status: Current-29 days past due (DPD) and still accruing $ 348,033 126,184 19,900 14,568 508,685 30-89 DPD and still accruing 1,217 285 179 143 1,824 90+ DPD and still accruing 206 29 — — 235 Nonaccrual loans 980 1,235 13 148 2,376 Total commercial loans $ 350,436 127,733 20,092 14,859 513,120 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. 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. 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 4.9: 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 December 31, 2021 Residential mortgage – first lien By delinquency status: Current-29 DPD $ 69,994 41,527 24,887 7,660 13,734 61,576 5,248 1,673 226,299 30-59 DPD 129 27 30 12 24 418 14 29 683 60-89 DPD 10 7 2 — 3 126 7 15 170 90-119 DPD — 1 1 1 5 53 4 9 74 120-179 DPD 1 16 2 2 1 63 4 14 103 180+ DPD — 62 72 71 92 1,294 36 156 1,783 Government insured/guaranteed loans (1) 14 134 209 349 364 12,088 — — 13,158 Total residential mortgage – first lien 70,148 41,774 25,203 8,095 14,223 75,618 5,313 1,896 242,270 Residential mortgage – junior lien By delinquency status: Current-29 DPD 28 20 30 26 21 700 10,883 4,426 16,134 30-59 DPD — — — — 1 10 29 46 86 60-89 DPD — — — — — 4 10 21 35 90-119 DPD — — — 1 — 3 4 12 20 120-179 DPD — — — — — 5 7 14 26 180+ DPD — — 1 — — 40 59 217 317 Total residential mortgage – junior lien 28 20 31 27 22 762 10,992 4,736 16,618 Credit cards By delinquency status: Current-29 DPD — — — — — — 37,686 192 37,878 30-59 DPD — — — — — — 176 7 183 60-89 DPD — — — — — — 118 5 123 90-119 DPD — — — — — — 98 5 103 120-179 DPD — — — — — — 165 1 166 180+ DPD — — — — — — — — — Total credit cards — — — — — — 38,243 210 38,453 Auto By delinquency status: Current-29 DPD 29,246 12,412 8,476 3,271 1,424 714 — — 55,543 30-59 DPD 220 193 165 81 46 57 — — 762 60-89 DPD 69 67 53 25 14 21 — — 249 90-119 DPD 31 27 22 9 6 8 — — 103 120-179 DPD — 1 1 — — — — — 2 180+ DPD — — — — — — — — — Total auto 29,566 12,700 8,717 3,386 1,490 800 — — 56,659 Other consumer By delinquency status: Current-29 DPD 2,221 716 703 203 107 125 23,988 143 28,206 30-59 DPD 3 2 3 1 — 2 10 4 25 60-89 DPD 2 1 2 1 — 1 5 1 13 90-119 DPD 1 1 2 1 — — 4 — 9 120-179 DPD — — — — — — 8 2 10 180+ DPD — — — — — 1 1 9 11 Total other consumer 2,227 720 710 206 107 129 24,016 159 28,274 Total consumer loans $ 101,969 55,214 34,661 11,714 15,842 77,309 78,564 7,001 382,274 (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 $5.7 billion and $11.1 billion at December 31, 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 or above. 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 December 31, 2021 By FICO: Residential mortgage – first lien 800+ $ 35,935 27,396 16,583 5,153 9,430 37,495 2,554 469 135,015 760-799 23,645 9,814 5,412 1,464 2,485 10,509 1,073 265 54,667 720-759 7,842 3,083 1,980 642 1,137 6,277 646 238 21,845 680-719 1,986 876 645 283 501 3,682 393 206 8,572 640-679 449 233 187 89 129 1,851 188 146 3,272 600-639 101 63 46 31 41 1,035 102 89 1,508 < 600 15 13 24 19 41 1,083 114 124 1,433 No FICO available 161 162 117 65 95 1,598 243 359 2,800 Government insured/guaranteed loans (1) 14 134 209 349 364 12,088 — — 13,158 Total residential mortgage – first lien 70,148 41,774 25,203 8,095 14,223 75,618 5,313 1,896 242,270 Residential mortgage – junior lien 800+ — — — — — 188 5,512 1,481 7,181 760-799 — — — — — 110 2,154 828 3,092 720-759 — — — — — 130 1,462 790 2,382 680-719 — — — — — 118 881 633 1,632 640-679 — — — — — 65 325 338 728 600-639 — — — — — 39 160 208 407 < 600 — — — — — 43 164 215 422 No FICO available 28 20 31 27 22 69 334 243 774 Total residential mortgage – junior lien 28 20 31 27 22 762 10,992 4,736 16,618 Credit card 800+ — — — — — — 4,247 1 4,248 760-799 — — — — — — 6,053 7 6,060 720-759 — — — — — — 8,475 26 8,501 680-719 — — — — — — 9,136 50 9,186 640-679 — — — — — — 5,850 47 5,897 600-639 — — — — — — 2,298 31 2,329 < 600 — — — — — — 2,067 47 2,114 No FICO available — — — — — — 117 1 118 Total credit card — — — — — — 38,243 210 38,453 Auto 800+ 4,688 1,983 1,680 690 318 108 — — 9,467 760-799 4,967 2,123 1,586 586 234 87 — — 9,583 720-759 4,789 2,104 1,503 583 241 106 — — 9,326 680-719 5,005 2,282 1,441 526 218 111 — — 9,583 640-679 4,611 1,824 1,025 369 160 99 — — 8,088 600-639 3,118 1,114 617 243 117 92 — — 5,301 < 600 2,372 1,236 853 376 193 187 — — 5,217 No FICO available 16 34 12 13 9 10 — — 94 Total auto 29,566 12,700 8,717 3,386 1,490 800 — — 56,659 Other consumer 800+ 450 162 128 34 8 47 1,343 22 2,194 760-799 502 147 117 33 7 22 819 19 1,666 720-759 461 134 115 38 9 18 714 22 1,511 680-719 349 95 99 37 9 15 630 22 1,256 640-679 170 44 55 21 6 8 328 17 649 600-639 42 13 19 9 3 4 117 9 216 < 600 18 12 22 11 3 5 114 12 197 No FICO available 235 113 155 23 62 10 1,236 36 1,870 FICO not required — — — — — — 18,715 — 18,715 Total other consumer 2,227 720 710 206 107 129 24,016 159 28,274 Total consumer loans $ 101,969 55,214 34,661 11,714 15,842 77,309 78,564 7,001 382,274 (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. 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 December 31, 2021 Residential mortgage – first lien By LTV: 0-60% $ 26,618 22,882 16,063 5,310 11,030 57,880 4,348 1,644 145,775 60.01-80% 42,893 18,188 8,356 2,234 2,647 5,017 674 188 80,197 80.01-100% 486 437 474 147 134 339 157 42 2,216 100.01-120% (1) 10 31 24 11 7 48 33 8 172 > 120% (1) 5 10 10 4 3 35 14 3 84 No LTV available 122 92 67 40 38 211 87 11 668 Government insured/guaranteed loans (2) 14 134 209 349 364 12,088 — — 13,158 Total residential mortgage – first lien 70,148 41,774 25,203 8,095 14,223 75,618 5,313 1,896 242,270 Residential mortgage – junior lien By CLTV: 0-60% — — — — — 475 7,949 3,588 12,012 60.01-80% — — — — — 172 2,329 823 3,324 80.01-100% — — — — — 55 554 241 850 100.01-120% (1) — — — — — 13 104 42 159 > 120% (1) — — — — — 3 35 13 51 No CLTV available 28 20 31 27 22 44 21 29 222 Total residential mortgage – junior lien 28 20 31 27 22 762 10,992 4,736 16,618 Total $ 70,176 41,794 25,234 8,122 14,245 76,380 16,305 6,632 258,888 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% (1) — — — — — 59 376 156 591 > 120% (1) — — — — — 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) Year ended December 31, (in millions) Dec 31, Dec 31, Dec 31, Dec 31, 2021 2020 Commercial: Commercial and industrial $ 980 2,698 190 382 97 78 Real estate mortgage 1,235 1,774 66 93 66 31 Real estate construction 13 48 5 15 3 6 Lease financing 148 259 9 16 — — Total commercial 2,376 4,779 270 506 166 115 Consumer: Residential mortgage- first lien 3,803 2,957 2,722 1,908 122 151 Residential mortgage- junior lien 801 754 497 461 53 52 Auto 198 202 — — 34 20 Other consumer 34 36 — — 3 3 Total consumer 4,836 3,949 3,219 2,369 212 226 Total nonaccrual loans $ 7,212 8,728 3,489 2,875 378 341 (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) Dec 31, Dec 31, Total: $ 5,358 7,041 Less: FHA insured/VA guaranteed (1) 4,699 6,351 Total, not government insured/guaranteed $ 659 690 By segment and class, not government insured/guaranteed: Commercial: Commercial and industrial $ 206 39 Real estate mortgage 29 38 Real estate construction — 1 Total commercial 235 78 Consumer: Residential mortgage – first lien 37 135 Residential mortgage – junior lien 12 19 Credit card 269 365 Auto 88 65 Other consumer 18 28 Total consumer 424 612 Total, not government insured/guaranteed $ 659 690 (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 Total Charge- Weighted Recorded Year ended December 31, 2021 Commercial: Commercial and industrial $ 2 9 879 890 20 0.81 % $ 9 Real estate mortgage 41 15 256 312 — 1.28 14 Real estate construction — — 3 3 — — — Lease financing — — 7 7 — — — Total commercial 43 24 1,145 1,212 20 1.11 23 Consumer: Residential mortgage – first lien — 57 1,286 1,343 2 1.60 57 Residential mortgage – junior lien — 13 38 51 1 2.64 13 Credit card — 106 — 106 — 19.12 106 Auto 1 4 131 136 54 3.82 4 Other consumer — 18 1 19 — 11.83 18 Trial modifications (5) — — (3) (3) — — — Total consumer 1 198 1,453 1,652 57 12.01 198 Total $ 44 222 2,598 2,864 77 10.84 % $ 221 Year ended December 31, 2020 Commercial: Commercial and industrial $ 24 47 2,971 3,042 162 0.74 % $ 48 Real estate mortgage — 34 677 711 5 1.00 34 Real estate construction 10 1 7 18 — 4.29 1 Lease financing — — 1 1 — — — Total commercial 34 82 3,656 3,772 167 0.90 83 Consumer: Residential mortgage – first lien — 14 4,156 4,170 4 1.76 39 Residential mortgage – junior lien — 11 121 132 3 2.45 12 Credit card — 272 — 272 — 14.12 272 Auto 4 6 166 176 93 4.65 6 Other consumer — 23 34 57 1 8.28 23 Trial modifications (5) — — 3 3 — — — Total consumer 4 326 4,480 4,810 101 11.80 352 Total $ 38 408 8,136 8,582 268 9.73 % $ 435 Year ended December 31, 2019 Commercial: Commercial and industrial $ 13 $ 90 $ 1,286 1,389 $ 104 0.40 % $ 90 Real estate mortgage — 38 417 455 — 0.69 38 Real estate construction 13 1 32 46 — 1.00 1 Lease financing — — 2 2 — — — Total commercial 26 129 1,737 1,892 104 0.49 129 Consumer: Residential mortgage – first lien — 13 978 991 2 2.04 68 Residential mortgage – junior lien — 37 87 124 3 2.35 39 Credit card — 376 — 376 — 12.91 376 Auto 8 9 51 68 29 4.86 9 Other consumer 1 51 7 59 — 8.07 52 Trial modifications (5) — — 13 13 — — — Total consumer 9 486 1,136 1,631 34 10.19 544 Total $ 35 615 2,873 3,523 138 8.33 % $ 673 (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 $737 million, $1.5 billion and $1.1 billion, for the years ended December 31, 2021, 2020 and 2019, 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 Year ended December 31, (in millions) 2021 2020 2019 Commercial: Commercial and industrial $ 132 677 111 Real estate mortgage 34 128 48 Real estate construction — — 17 Lease financing 1 1 — Total commercial 167 806 176 Consumer: Residential mortgage – first lien 12 34 41 Residential mortgage – junior lien 1 12 13 Credit card 25 72 88 Auto 43 32 12 Other consumer 3 5 8 Total consumer 84 155 162 Total $ 251 961 338

Leasing Activity (Tables)

Leasing Activity (Tables)	12 Months Ended
	Dec. 31, 2021
Lessor Disclosure [Abstract]
Leasing Revenue	Table 5.1 presents the composition of our leasing revenue and Table 5.2 provides the components of our investment in lease financing. Noninterest income on leases, included 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 $867 million, $1.0 billion, and $1.2 billion for the years ended December 31, 2021, 2020 and 2019, respectively. In 2021, we observed that a decline in the market led to continued weakening demand for certain rail cars used for the transportation of coal products. We expect that both utilization and rental rates for these leased rail cars may remain low in future periods and, therefore, we recognized an impairment charge related to these leased rail cars of $268 million in fourth quarter 2021 in other noninterest income. The current fair value of the leased assets was determined based upon third-party market appraisals. We believe no other classes of rail cars were impaired as of December 31, 2021. Additional impairment may result in the future based on changing economic and market conditions affecting the long-term demand and utility of specific types of rail cars. Our rail car leasing business is in Corporate for our operating segment disclosures. For additional information on the accounting for impairment of operating lease assets, see Note 1 (Summary of Significant Accounting Policies). Table 5.1: Leasing Revenue Year ended December 31, (in millions) 2021 2020 2019 Interest income on lease financing (1) $ 683 853 941 Other lease revenues: Variable revenues on lease financing 101 107 98 Fixed revenues on operating leases 995 1,169 1,393 Variable revenues on operating leases 64 47 66 Other lease-related revenues (2) (164) (78) 57 Noninterest income on leases 996 1,245 1,614 Total leasing revenue $ 1,679 2,098 2,555 (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) Includes net gains (losses) on disposition of assets leased under operating leases or lease financings, and impairment charges.
Investment in Lease Financing	Table 5.2: Investment in Lease Financing (in millions) Dec 31, 2021 Dec 31, 2020 Lease receivables $ 12,756 14,210 Residual asset values 3,721 3,810 Unearned income (1,618) (1,933) Lease financing $ 14,859 16,087
Maturities of Lease Receivables	Table 5.3 presents future lease payments owed by our lessees. Table 5.3: Maturities of Lease Receivables December 31, 2021 (in millions) Direct financing and sales- type leases Operating leases 2022 $ 4,465 546 2023 3,194 394 2024 2,077 277 2025 1,222 187 2026 588 100 Thereafter 1,210 171 Total lease receivables $ 12,756 1,675
Lessee Disclosure [Abstract]
Operating Lease Right-of-Use (ROU) Assets and Lease Liabilities	Table 5.4 presents balances for our operating leases. Table 5.4: Operating Lease Right-of-Use (ROU) Assets and Lease Liabilities (in millions) Dec 31, 2021 Dec 31, 2020 ROU assets $ 3,805 4,306 Lease liabilities 4,476 4,962
Lease Costs	Table 5.5 provides the composition of our lease costs, which are predominantly included in net occupancy expense. Table 5.5: Lease Costs Year ended December 31, (in millions) 2021 2020 2019 Fixed lease expense – operating leases $ 1,048 1,149 1,212 Variable lease expense 289 299 314 Other (1) (93) (77) (68) Total lease costs $ 1,244 1,371 1,458
Lease Payments on Operating Leases	Table 5.6 provides the future lease payments under operating leases as well as information on the remaining average lease term and discount rate as of December 31, 2021. Table 5.6: Lease Payments on Operating Leases (in millions, except for weighted averages) Dec 31, 2021 2022 $ 948 2023 952 2024 793 2025 609 2026 471 Thereafter 1,111 Total lease payments 4,884 Less: imputed interest 408 Total operating lease liabilities $ 4,476 Weighted average remaining lease term (in years) 6.5 Weighted average discount rate 2.6 %

Equity Securities (Tables)

Equity Securities (Tables)	12 Months Ended
	Dec. 31, 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) Dec 31, Dec 31, Held for trading at fair value: Marketable equity securities (1) $ 27,476 23,032 Not held for trading: Fair value: Marketable equity securities 2,578 1,564 Nonmarketable equity securities (2) 9,044 9,413 Total equity securities at fair value 11,622 10,977 Equity method: Private equity 3,077 2,960 Tax-advantaged renewable energy 4,740 3,481 New market tax credit and other 379 409 Total equity method 8,196 6,850 Other methods: Low-income housing tax credit investments 12,314 11,353 Private equity (3) 9,694 4,208 Federal Reserve Bank stock and other at cost (4) 3,584 3,588 Total equity securities not held for trading 45,410 36,976 Total equity securities $ 72,886 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) Represents nonmarketable equity securities accounted for under the measurement alternative, which were predominantly securities associated with our affiliated venture capital business. (4) Substantially all relates to investments in Federal Reserve Bank stock at both December 31, 2021, and December 31, 2020.
Net Gains (Losses) from Equity Securities Not Held for Trading	Table 6.2 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 6.2: Net Gains (Losses) from Equity Securities Not Held for Trading Year ended December 31, (in millions) 2021 2020 2019 Net gains (losses) from equity securities carried at fair value: Marketable equity securities $ (202) 63 1,067 Nonmarketable equity securities (188) 1,414 2,413 Total equity securities carried at fair value (390) 1,477 3,480 Net gains (losses) from nonmarketable equity securities not carried at fair value (1): Impairment write-downs (121) (1,655) (245) Net unrealized gains (2)(3) 4,862 1,651 567 Net realized gains on sale (3) 1,581 359 1,161 Total nonmarketable equity securities not carried at fair value 6,322 355 1,483 Net gains (losses) from economic hedge derivatives 495 (1,167) (2,120) Total net gains (losses) from equity securities not held for trading $ 6,427 665 2,843 (1) Includes impairment write-downs, net unrealized gains, 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 unrealized gains (losses) due to observable price changes from equity securities accounted for under the measurement alternative. (3) During the year ended December 31, 2021, we recognized $442 million of gains (including $293 million of unrealized gains) related to the partial sale of a nonmarketable equity investment to an unrelated third-party that resulted in the deconsolidation of a consolidated portfolio company. Our retained investment in nonmarketable equity securities of the formerly consolidated portfolio company was remeasured to fair value. For information about the technique and inputs used in the remeasurement, see Note 17 (Fair Values of Assets and Liabilities).
Net Gains (Losses) from Measurement Alternative Equity Securities	Table 6.3 provides additional information about the impairment write-downs and observable price changes from nonmarketable equity securities accounted for under the measurement alternative. Gains and losses related to these adjustments are also included in Table 6.2. Table 6.3: Net Gains (Losses) from Measurement Alternative Equity Securities Year ended December 31, (in millions) 2021 2020 2019 Net gains (losses) recognized in earnings during the period: Gross unrealized gains due to observable price changes $ 4,569 1,651 584 Gross unrealized losses due to observable price changes — — (17) Impairment write-downs (109) (954) (116) Realized net gains from sale 456 38 163 Total net gains recognized during the period $ 4,916 735 614
Measurement Alternative Cumulative Gains (Losses)	Table 6.4 presents cumulative carrying value adjustments to nonmarketable equity securities accounted for under the measurement alternative that were still held at the end of each reporting period presented. Table 6.4: Measurement Alternative Cumulative Gains (Losses) Year ended December 31, (in millions) 2021 2020 2019 Cumulative gains (losses): Gross unrealized gains due to observable price changes $ 6,278 2,356 973 Gross unrealized losses due to observable price changes (3) (25) (42) Impairment write-downs (821) (969) (134)
LIHTC Investments	Table 6.5 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 $4.9 billion at December 31, 2021, and $4.2 billion at December 31, 2020. This liability for unfunded commitments is included in long-term debt on our consolidated balance sheet. Table 6.5: LIHTC Investments (1) Year ended December 31, (in millions) 2021 2020 2019 Proportional amortization of investments $ 1,545 1,407 1,276 Tax credits and other tax benefits (1,783) (1,639) (1,490) Net expense/(benefit) recognized within income tax expense $ (238) (232) (214) (1) 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).

Premises, Equipment and Other_2

Premises, Equipment and Other Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Premises, Equipment And Other Assets [Abstract]
Premises and Equipment	Table 7.1 presents the components of premises and equipment. Table 7.1: Premises and Equipment (in millions) Dec 31, Dec 31, Land $ 1,759 1,808 Buildings 9,442 9,504 Furniture and equipment 7,420 7,449 Leasehold improvements 2,597 2,597 Finance lease ROU assets 32 32 Total premises and equipment 21,250 21,390 Less: Accumulated depreciation and amortization 12,679 12,495 Net book value, premises and equipment $ 8,571 8,895
Other Assets	Table 7.2 presents the components of other assets. Table 7.2: Other Assets (in millions) Dec 31, 2021 Dec 31, 2020 Corporate/bank-owned life insurance $ 20,619 20,380 Accounts receivable (1) 20,831 38,116 Interest receivable: AFS and HTM debt securities 1,360 1,368 Loans 1,950 2,838 Trading and other 305 415 Operating lease assets (lessor) 6,182 7,391 Operating lease ROU assets (lessee) 3,805 4,306 Customer relationship and other amortized intangibles 211 328 Foreclosed assets 112 159 Due from customers on acceptances 155 268 Other (2) 11,729 11,768 Total other assets $ 67,259 87,337 (1) Primarily includes derivatives clearinghouse receivables, trade date receivables, and servicer advances. (2) Primarily includes income tax receivables, prepaid expenses, and private equity and venture capital investments in consolidated portfolio companies.

Securitizations and Variable _2

Securitizations and Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 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. 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. Substantially all transfers were related to residential mortgage securitizations with the GSEs or GNMA and resulted in no gain or loss because the loans are already measured at fair value on a recurring basis. Additionally, we may transfer certain government insured loans that we previously repurchased. These loans are carried at the lower of cost or market, and we recognize gains on such transfers when the market value is greater than the carrying value of the loan when it is sold. Table 8.1: Transfers with Continuing Involvement Year ended December 31, 2021 2020 2019 (in millions) Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Residential mortgages Commercial mortgages Assets sold $ 157,063 18,247 177,441 11,744 142,469 18,191 Proceeds from transfer (1) 157,852 18,563 177,478 12,034 142,535 18,521 Net gains (losses) on sale 789 316 37 290 66 330 Continuing involvement (2): Servicing rights recognized $ 1,636 166 1,808 161 1,896 161 Securities recognized (3) 23,188 173 31,567 112 — 289 Loans recognized 926 — — — — — (1) Represents cash proceeds and the fair value of non-cash beneficial interests recognized at securitization settlement. (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 $40.7 billion, $37.6 billion, and $41.9 billion, during the years ended December 31, 2021, 2020 and 2019, respectively.
Residential Mortgage Servicing Rights	Table 8.2 presents the key weighted-average assumptions we used to initially measure residential MSRs recognized during the periods presented. Table 8.2: Residential Mortgage Servicing Rights Year ended December 31, 2021 2020 2019 Prepayment rate (1) 13.7 % 15.4 12.8 Discount rate 5.9 6.5 7.5 Cost to service ($ per loan) $ 91 96 101 (1) 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.
Loans Serviced for Others	Table 8.3 presents information about loans that we sold or securitized in which we have ongoing involvement as servicer. These are primarily residential mortgage loans sold to the GSEs or GNMA. Delinquent loans include loans 90 days or more past due and loans in bankruptcy, regardless of delinquency status. For loans sold or securitized where servicing is our only form of continuing involvement, we 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 8.3: Loans Serviced for Others Net charge-offs (2) Total loans Delinquent loans and foreclosed assets (1) Year ended December 31, (in millions) Dec 31, 2021 Dec 31, 2020 Dec 31, 2021 Dec 31, 2020 2021 2020 Commercial $ 120,962 114,134 1,923 2,217 143 136 Residential 690,813 818,886 10,714 29,962 22 78 Total off-balance sheet sold or securitized loans (3) $ 811,775 933,020 12,637 32,179 165 214 (1) Includes $403 million and $394 million of commercial foreclosed assets and $129 million and $204 million of residential foreclosed assets at December 31, 2021 and 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 December 31, 2021 and 2020, the table includes total loans of $736.8 billion and $864.8 billion, delinquent loans of $10.2 billion and $28.5 billion, and foreclosed assets of $100 million and $152 million, respectively, for FNMA, FHLMC and GNMA.
Unconsolidated VIEs	Table 8.4 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 8.4, “Total VIE assets” represents the remaining principal balance of assets held by unconsolidated VIEs using the most current information available. “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 8.4: Unconsolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt Equity securities All other Debt and other liabilities Net assets December 31, 2021 Nonconforming mortgage loan securitizations $ 146,482 — 2,620 — 694 — 3,314 Tax credit structures 44,528 1,904 — 12,322 — (4,941) 9,285 Commercial real estate loans 5,489 5,481 — — 8 — 5,489 Other 3,196 531 3 62 49 (1) 644 Total $ 199,695 7,916 2,623 12,384 751 (4,942) 18,732 Maximum exposure to loss Loans Debt Equity securities All other Debt, guarantees, Total exposure Nonconforming mortgage loan securitizations $ — 2,620 — 694 27 3,341 Tax credit structures 1,904 — 12,322 — 3,730 17,956 Commercial real estate loans 5,481 — — 8 710 6,199 Other 531 3 62 49 229 874 Total $ 7,916 2,623 12,384 751 4,696 28,370 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 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 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 $352 million and $310 million of securities classified as trading at December 31, 2021 and 2020, respectively. (2) All other assets includes mortgage servicing rights, derivative assets, and other assets (predominantly servicing advances).
Transactions with Consolidated VIEs	Table 8.5 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.” 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 8.5: Transactions with Consolidated VIEs Carrying value – asset (liability) (in millions) Total Loans Debt All other Long-term debt All other liabilities (3) December 31, 2021 Commercial and industrial loans and leases $ 7,013 4,099 — 231 — (188) Commercial real estate loans (4) — — — — — — Other 516 377 71 3 (149) (71) Total consolidated VIEs $ 7,529 4,476 71 234 (149) (259) 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 $269 million of securities classified as trading at December 31, 2020. There were no securities classified as trading at December 31, 2021. (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)	12 Months Ended
	Dec. 31, 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 Year ended December 31, (in millions) 2021 2020 2019 Fair value, beginning of period $ 6,125 11,517 14,649 Servicing from securitizations or asset transfers (1) 1,645 1,708 1,933 Sales and other (2) (8) (32) (286) Net additions 1,637 1,676 1,647 Changes in fair value: Due to valuation inputs or assumptions: Mortgage interest rates (3) 1,625 (3,946) (2,406) Servicing and foreclosure costs (4) (9) (175) 48 Discount rates (56) 27 145 Prepayment estimates and other (5) (390) (599) (356) Net changes in valuation inputs or assumptions 1,170 (4,693) (2,569) Changes due to collection/realization of expected cash flows (6) (2,012) (2,375) (2,210) Total changes in fair value (842) (7,068) (4,779) Fair value, end of period $ 6,920 6,125 11,517 (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 rate 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 rate 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 17 (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) Dec 31, 2021 Dec 31, 2020 Fair value of interests held $ 6,920 6,125 Expected weighted-average life (in years) 4.7 3.7 Key economic assumptions: Prepayment rate assumption (1) 14.7 % 19.9 Impact on fair value from 10% adverse change $ 356 434 Impact on fair value from 25% adverse change 834 1,002 Discount rate assumption 6.4 % 5.8 Impact on fair value from 100 basis point increase $ 276 229 Impact on fair value from 200 basis point increase 529 440 Cost to service assumption ($ per loan) 106 130 Impact on fair value from 10% adverse change 165 181 Impact on fair value from 25% adverse change 411 454 (1) 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.
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) Dec 31, 2021 Dec 31, 2020 Residential mortgage servicing: Serviced and subserviced for others $ 718 859 Owned loans serviced 276 323 Total residential servicing 994 1,182 Commercial mortgage servicing: Serviced and subserviced for others 597 583 Owned loans serviced 130 123 Total commercial servicing 727 706 Total managed servicing portfolio $ 1,721 1,888 Total serviced for others, excluding subserviced for others $ 1,304 1,431 MSRs as a percentage of loans serviced for others 0.63 % 0.52 Weighted average note rate (mortgage loans serviced for others) 3.82 4.03
Mortgage Banking Noninterest Income	Table 9.4 presents the components of mortgage banking noninterest income. Table 9.4: Mortgage Banking Noninterest Income Year ended December 31, (in millions) 2021 2020 2019 Servicing fees: Contractually specified servicing fees, late charges and ancillary fees $ 2,801 3,250 3,660 Unreimbursed direct servicing costs (1) (332) (620) (403) Servicing fees 2,469 2,630 3,257 Amortization (2) (225) (308) (274) Changes due to collection/realization of expected cash flows (3) (A) (2,012) (2,375) (2,210) Net servicing fees 232 (53) 773 Changes in fair value of MSRs due to valuation inputs or assumptions (4) (B) 1,170 (4,693) (2,569) Net derivative gains (losses) from economic hedges (5) (1,208) 4,607 2,318 Market-related valuation changes to MSRs, net of hedge results (38) (86) (251) Total net servicing income 194 (139) 522 Net gains on mortgage loan originations/sales (6) 4,762 3,632 2,193 Total mortgage banking noninterest income 4,956 3,493 2,715 Total changes in fair value of MSRs carried at fair value (A)+(B) $ (842) (7,068) (4,779) (1) Includes costs associated with foreclosures, unreimbursed interest advances to investors, and other interest costs. (2) Includes a $41 million reversal of impairment recorded in 2021 on the commercial amortized MSRs. Also, includes a $37 million impairment recorded in 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 16 (Derivatives) for additional discussion and detail on economic hedges. (6) Includes net gains (losses) of $1.2 billion, $(1.8) billion and $(141) million at December 31, 2021, 2020 and 2019, respectively, related to derivatives used as economic hedges of mortgage loans held for sale and derivative loan commitments.

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 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 December 31, 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) $ 4,794 (3,525) 1,269 4,612 (3,300) 1,312 Customer relationship and other intangibles 842 (631) 211 879 (551) 328 Total amortized intangible assets $ 5,636 (4,156) 1,480 5,491 (3,851) 1,640 Unamortized intangible assets: MSRs (carried at fair value) $ 6,920 6,125 Goodwill 25,180 26,392 Trademark 14 14 (1) Balances are excluded commencing in the period following full amortization. (2) Includes a $4 million and $37 million valuation allowance recorded for amortized MSRs at December 31, 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 December 31, 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 Year ended December 31, 2021 (actual) $ 225 80 305 Estimate for year ended December 31, 2022 $ 246 59 305 2023 213 51 264 2024 187 41 228 2025 163 33 196 2026 130 27 157
Goodwill	Table 10.3 shows the allocation of goodwill to our reportable operating segments. Table 10.3: Goodwill (in millions) Consumer Banking and Lending Wholesale Banking Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Consolidated Company December 31, 2019 $ 16,685 8,429 — — 1,276 — 26,390 Foreign currency translation — — 2 — — — 2 Transfers of goodwill (267) (8,429) 3,016 5,375 — 305 — December 31, 2020 $ 16,418 — 3,018 5,375 1,276 305 26,392 Foreign currency translation — — — — — — — Transfers of goodwill — — (80) — (932) 1,012 — Divestitures — — — — — (1,212) (1,212) December 31, 2021 $ 16,418 — 2,938 5,375 344 105 25,180

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Time Deposits	Table 11.1 presents a summary of the time certificates of deposit (CDs) and other time deposits issued by domestic and non-U.S. offices in denominations in excess of $250,000. Table 11.1: Time Deposits December 31, (in millions) 2021 2020 Total domestic and Non-U.S. $ 30,012 52,807 Time deposits $250,000 or more 5,527 9,033
Contractual Maturities of Time Deposits	The contractual maturities of time deposits are presented in Table 11.2. Table 11.2: Contractual Maturities of Time Deposits (in millions) December 31, 2021 2022 $ 20,816 2023 5,427 2024 2,159 2025 582 2026 143 Thereafter 885 Total $ 30,012

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Long-term Debt, Current and Noncurrent [Abstract]
Long-Term Debt	Table 12.1 presents a summary of our long-term debt carrying values, reflecting unamortized debt discounts and premiums, and hedge basis adjustments, where applicable. See Note 16 (Derivatives) for additional information on qualifying hedge contracts. The interest rates displayed represent the range of contractual rates in effect at December 31, 2021. These interest rates do not include the effects of any associated derivatives designated in a hedge accounting relationship. Table 12.1: Long-Term Debt December 31, 2021 2020 (in millions) Maturity date(s) Stated interest rate(s) Wells Fargo & Company (Parent only) Senior Fixed-rate notes 2022-2045 0.38-6.75% $ 62,525 84,892 Floating-rate notes 2022-2048 0.00-1.36% 5,535 13,736 FixFloat notes 2024-2051 0.81-5.01% 43,010 43,917 Structured notes (1) 5,874 8,081 Total senior debt – Parent 116,944 150,626 Subordinated Fixed-rate notes (2) 2023-2046 3.45-7.57% 27,970 29,874 Total subordinated debt – Parent 27,970 29,874 Junior subordinated Fixed-rate notes 2029-2036 5.95-7.95% 1,041 1,382 Floating-rate notes 2027 0.62-1.12% 331 330 Total junior subordinated debt – Parent (3) 1,372 1,712 Total long-term debt – Parent (2) 146,286 182,212 Wells Fargo Bank, N.A., and other bank entities (Bank) Senior Fixed-rate notes — 7,644 Floating-rate notes 2038-2053 0.00% 116 3,747 FixFloat notes — 2,841 Fixed-rate advances – Federal Home Loan Bank (FHLB) — 31 Structured notes (1) 307 792 Finance leases 2022-2029 1.13-17.78% 26 28 Total senior debt – Bank 449 15,083 Subordinated Fixed-rate notes 2023-2038 5.25-7.74% 5,387 5,775 Total subordinated debt – Bank 5,387 5,775 Junior subordinated Floating-rate notes 2027 0.73-0.77% 388 375 Total junior subordinated debt – Bank (3) 388 375 Long-term debt issued by VIE – Floating rate 2037 0.24-0.25% 149 203 Mortgage notes and other debt (4) 2022-2059 0.24-9.03% 6,485 5,694 Total long-term debt – Bank $ 12,858 27,130 (continued on following page) (continued from previous page) December 31, 2021 2020 (in millions) Maturity date(s) Stated interest rate(s) Other consolidated subsidiaries Senior Fixed-rate notes 2023 3.46% $ 398 1,390 Structured notes (1) 1,147 2,186 Total senior debt – Other consolidated subsidiaries 1,545 3,576 Mortgage notes and other — 32 Total long-term debt – Other consolidated subsidiaries 1,545 3,608 Total long-term debt $ 160,689 212,950 (1) Included in the table are certain structured notes that have coupon or repayment terms linked to the performance of debt or equity securities, an embedded equity, commodity, or currency index, or basket of indices accounted for separately from the note as a free-standing derivative, and the maturity may be accelerated based on the value of a referenced index or security. For additional information on embedded derivatives, see the “Derivatives Not Designated as Hedging Instruments” section in Note 16 (Derivatives). In addition, a major portion consists of zero coupon notes where interest is paid as part of the final redemption amount. (2) Includes fixed-rate subordinated notes issued by the Parent at a discount of $123 million and $126 million in 2021 and 2020, respectively, and debt issuance costs of $2 million in both 2021 and 2020, to effect a modification of Wells Fargo Bank, N.A., notes. These subordinated notes are carried at their par amount on the consolidated balance sheet of the Parent presented in Note 27 (Parent-Only Financial Statements). In addition, Parent long-term debt presented in Note 27 also includes affiliate related issuance costs of $329 million and $384 million in 2021 and 2020, respectively. (3) Includes $388 million and $704 million of junior subordinated debentures held by unconsolidated wholly-owned trust preferred security VIEs at December 31, 2021 and 2020, respectively. In both 2021 and 2020, we liquidated certain of our trust preferred security VIEs. As part of these liquidations, junior subordinated debentures that were held by the trusts with a total carrying value of $332 million and $1.4 billion, respectively, were distributed to third-party investors. See Note 8 (Securitizations and Variable Interest Entities) for additional information about trust preferred security VIEs. (4) Primarily relates to unfunded commitments for LIHTC investments. For additional information, see Note 6 (Equity Securities).
Maturity of Long-Term Debt	The aggregate carrying value of long-term debt that matures (based on contractual payment dates) as of December 31, 2021, in each of the following five years and thereafter is presented in Table 12.2. Table 12.2: Maturity of Long-Term Debt December 31, 2021 (in millions) 2022 2023 2024 2025 2026 Thereafter Total Wells Fargo & Company (Parent Only) Senior notes $ 13,050 8,045 11,871 14,554 19,173 50,251 116,944 Subordinated notes — 3,653 740 1,077 2,932 19,568 27,970 Junior subordinated notes — — — — — 1,372 1,372 Total long-term debt – Parent 13,050 11,698 12,611 15,631 22,105 71,191 146,286 Wells Fargo Bank, N.A., and other bank entities (Bank) Senior notes 28 3 3 190 86 139 449 Subordinated notes — 1,045 — 163 — 4,179 5,387 Junior subordinated notes — — — — — 388 388 Securitizations and other bank debt 2,506 1,290 955 253 125 1,505 6,634 Total long-term debt – Bank 2,534 2,338 958 606 211 6,211 12,858 Other consolidated subsidiaries Senior notes 187 500 105 423 224 106 1,545 Total long-term debt – Other consolidated subsidiaries 187 500 105 423 224 106 1,545 Total long-term debt $ 15,771 14,536 13,674 16,660 22,540 77,508 160,689

Guarantees and Other Commitme_2

Guarantees and Other Commitments (Tables)	12 Months Ended
	Dec. 31, 2021
Guarantees [Abstract]
Guarantees - Carrying Value and Maximum Exposure to Loss	Table 13.1 shows carrying value, maximum exposure to loss on our guarantees and the related non-investment grade amounts. Table 13.1: Guarantees – Carrying Value and Maximum Exposure to Loss Maximum exposure to loss (in millions) Carrying value of obligation (asset) Expires in one year or less Expires after one year through three years Expires after three years through five years Expires after five years Total Non-investment grade December 31, 2021 Standby letters of credit $ 119 13,816 5,260 1,572 460 21,108 6,939 Direct pay letters of credit 6 1,597 2,137 1,283 4 5,021 1,373 Written options (1) (280) 12,107 4,575 513 36 17,231 13,645 Loans and LHFS sold with recourse (2) 20 71 943 3,610 8,650 13,274 11,268 Exchange and clearing house guarantees — — — — 8,100 8,100 — Other guarantees and indemnifications (3) — 797 2 12 263 1,074 756 Total guarantees $ (135) 28,388 12,917 6,990 17,513 65,808 33,981 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 16 (Derivatives). Carrying value net asset position is a result of certain deferred premium option trades. (2) Represents recourse provided, predominantly 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 $216 million and $1.4 billion with related collateral of $2.3 billion and $1.2 billion as of December 31, 2021 and 2020, respectively.

Pledged Assets and Collateral (

Pledged Assets and Collateral (Tables)	12 Months Ended
	Dec. 31, 2021
Transfers and Servicing [Abstract]
Pledged Assets	Table 14.1 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 14.1: Pledged Assets (in millions) Dec 31, Dec 31, Related to trading activities: Repledged third-party owned debt and equity securities $ 31,087 44,765 Trading debt securities and other 14,216 19,572 Equity securities 984 470 Total pledged assets related to trading activities 46,287 64,807 Related to non-trading activities: Loans 288,698 344,220 Debt securities: Available-for-sale 65,198 57,289 Held-to-maturity 13,843 17,290 Other financial assets 1,600 230 Total pledged assets related to non-trading activities 369,339 419,029 Related to VIEs: Consolidated VIE assets 4,781 12,146 Loans eligible for repurchase from GNMA securitizations 109 179 Total pledged assets related to VIEs 4,890 12,325 Total pledged assets $ 420,516 496,161
Offsetting - Securities Financing Activities	In addition to the amounts included in Table 14.2, we also have balance sheet netting related to derivatives that is disclosed in Note 16 (Derivatives). Table 14.2: Offsetting – Securities Financing Activities (in millions) Dec 31, Dec 31, Assets: Resale and securities borrowing agreements Gross amounts recognized $ 103,140 92,446 Gross amounts offset in consolidated balance sheet (1) (14,074) (11,513) Net amounts in consolidated balance sheet (2) 89,066 80,933 Collateral not recognized in consolidated balance sheet (3) (88,330) (80,158) Net amount (4) $ 736 775 Liabilities: Repurchase and securities lending agreements Gross amounts recognized $ 35,043 57,622 Gross amounts offset in consolidated balance sheet (1) (14,074) (11,513) Net amounts in consolidated balance sheet (5) 20,969 46,109 Collateral pledged but not netted in consolidated balance sheet (6) (20,820) (45,819) Net amount (4) $ 149 290 (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 $66.2 billion and $65.6 billion classified on our consolidated balance sheet in federal funds sold and securities purchased under resale agreements at December 31, 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 $22.9 billion and $15.3 billion, at December 31, 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 December 31, 2021, and December 31, 2020, we have received total collateral with a fair value of $124.4 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 $28.8 billion and $36.1 billion at December 31, 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 14.3 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 14.3: Gross Obligations by Underlying Collateral Type (in millions) Dec 31, Dec 31, Repurchase agreements: Securities of U.S. Treasury and federal agencies $ 14,956 22,922 Securities of U.S. States and political subdivisions 1 4 Federal agency mortgage-backed securities 3,432 15,353 Non-agency mortgage-backed securities 809 1,069 Corporate debt securities 8,899 9,944 Asset-backed securities 358 1,054 Equity securities 919 1,500 Other 409 336 Total repurchases 29,783 52,182 Securities lending arrangements: Securities of U.S. Treasury and federal agencies 33 64 Federal agency mortgage-backed securities 17 23 Corporate debt securities 80 79 Equity securities (1) 5,050 5,189 Other 80 85 Total securities lending 5,260 5,440 Total repurchases and securities lending $ 35,043 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 14.4 provides the contractual maturities of our gross obligations under repurchase and securities lending agreements. Table 14.4: Contractual Maturities of Gross Obligations (in millions) Overnight/continuous Up to 30 days 30-90 days >90 days Total gross obligation December 31, 2021 Repurchase agreements $ 16,452 3,570 4,276 5,485 29,783 Securities lending arrangements 4,810 — — 450 5,260 Total repurchases and securities lending (1) $ 21,262 3,570 4,276 5,935 35,043 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)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional or Contractual Amounts and Fair Values of Derivatives	Table 16.1 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 16.1: Notional or Contractual Amounts and Fair Values of Derivatives December 31, 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 $ 153,993 2,212 327 184,090 3,212 789 Foreign exchange contracts 24,949 281 669 47,331 1,381 607 Total derivatives designated as qualifying hedging instruments 2,493 996 4,593 1,396 Derivatives not designated as hedging instruments Economic hedges: Interest rate contracts 142,234 40 41 261,159 341 344 Equity contracts 26,263 1,493 1,194 25,997 1,363 490 Foreign exchange contracts 28,192 395 88 47,106 331 1,515 Credit contracts 290 7 — 73 31 — Subtotal 1,935 1,323 2,066 2,349 Customer accommodation trading and other derivatives: Interest rate contracts 7,976,534 20,286 17,435 7,947,941 32,510 25,169 Commodity contracts 76,642 5,965 2,417 65,790 2,036 1,543 Equity contracts 321,863 16,278 17,827 280,195 17,522 21,516 Foreign exchange contracts 560,049 5,912 5,915 412,879 6,891 6,034 Credit contracts 38,318 39 43 34,329 64 58 Subtotal 48,480 43,637 59,023 54,320 Total derivatives not designated as hedging instruments 50,415 44,960 61,089 56,669 Total derivatives before netting 52,908 45,956 65,682 58,065 Netting (31,430) (36,532) (39,836) (41,556) Total $ 21,478 9,424 25,846 16,509
Fair Values of Derivative Assets and Liabilities	Table 16.2 provides information on the fair values of derivative assets and liabilities subject to enforceable master netting arrangements, 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 our consolidated balance sheet. We determine the balance sheet netting adjustments based on the terms specified within each master netting arrangement, which are determined at the counterparty level. We do not net non-cash collateral that we receive and pledge on our consolidated balance sheet. For disclosure purposes, we present “Total Derivatives, net” which 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. 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 14 (Pledged Assets and Collateral). Table 16.2: Fair Values of Derivative Assets and Liabilities December 31, 2021 December 31, 2020 (in millions) Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities Interest rate contracts Over-the-counter (OTC) $ 20,067 16,654 30,958 24,048 OTC cleared 168 192 1,156 1,099 Exchange traded 52 28 11 27 Total interest rate contracts 20,287 16,874 32,125 25,174 Commodity contracts OTC 5,040 1,249 1,498 1,009 Exchange traded 557 1,047 287 452 Total commodity contracts 5,597 2,296 1,785 1,461 Equity contracts OTC 6,132 9,730 7,747 11,068 Exchange traded 7,493 6,086 4,759 4,733 Total equity contracts 13,625 15,816 12,506 15,801 Foreign exchange contracts OTC 6,335 6,221 8,088 7,603 Total foreign exchange contracts 6,335 6,221 8,088 7,603 Credit contracts OTC 32 31 55 43 Total credit contracts 32 31 55 43 Total derivatives subject to enforceable master netting arrangements, gross 45,876 41,238 54,559 50,082 Less: Gross amounts offset Counterparty netting (1) (27,172) (27,046) (34,304) (34,106) Cash collateral netting (4,258) (9,486) (5,532) (7,450) Total derivatives subject to enforceable master netting arrangements, net 14,446 4,706 14,723 8,526 Derivatives not subject to enforceable master netting arrangements 7,032 4,718 11,123 7,983 Total derivatives recognized in consolidated balance sheet, net 21,478 9,424 25,846 16,509 Non-cash collateral not offset (1,432) (412) (2,157) (3,588) Total Derivatives, net (2) $ 20,046 9,012 23,689 12,921 (1) Represents amounts with counterparties subject to enforceable master netting arrangements that have been offset in our consolidated balance sheet, including portfolio level counterparty valuation adjustments related to customer accommodation and other trading derivatives. Counterparty valuation adjustments related to derivative assets were $284 million and $399 million and debit valuation adjustments related to derivative liabilities were $158 million and $201 million as of December 31, 2021, and December 31, 2020, respectively, and were primarily related to interest rate contracts. (2) Prior period balances have been conformed to current period presentation.
Gains (Losses) Recognized on Fair Value Hedging Relationships	Table 16.3 and Table 16.4 show the net gains (losses) related to derivatives in fair value and cash flow hedging relationships, respectively. Table 16.3: 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) Year ended December 31, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 9,253 (388) (3,173) 3,734 N/A 212 Interest contracts Amounts related to interest settlements on derivatives (253) 289 2,136 — 2,172 Recognized on derivatives 1,129 (336) (6,351) — (5,558) — Recognized on hedged items (1,117) 333 6,288 — 5,504 Total gains (losses) (pre-tax) on interest rate contracts (241) 286 2,073 — 2,118 — Foreign exchange contracts Amounts related to interest settlements on derivatives 57 — 10 — 67 Recognized on derivatives 4 — (516) (99) (611) 81 Recognized on hedged items (3) — 438 82 517 Total gains (losses) (pre-tax) on foreign exchange contracts 58 — (68) (17) (27) 81 Total gains (losses) (pre-tax) recognized on fair value hedges $ (183) 286 2,005 (17) 2,091 81 Year ended December 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 11,234 (2,804) (4,471) 3,847 N/A 198 Interest contracts Amounts related to interest settlements on derivatives (338) 503 1,704 — 1,869 Recognized on derivatives (1,261) 161 6,691 — 5,591 — Recognized on hedged items 1,317 (151) (6,543) — (5,377) Total gains (losses) (pre-tax) on interest rate contracts (282) 513 1,852 — 2,083 — Foreign exchange contracts Amounts related to interest settlements on derivatives 52 — (139) — (87) Recognized on derivatives (1) — 261 1,591 1,851 (31) Recognized on hedged items 2 — (201) (1,575) (1,774) Total gains (losses) (pre-tax) on foreign exchange contracts 53 — (79) 16 (10) (31) Total gains (losses) (pre-tax) recognized on fair value hedges $ (229) 513 1,773 16 2,073 (31) Year ended December 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 14,955 (8,635) (7,350) 7,457 N/A 275 Interest contracts Amounts related to interest settlements on derivatives — 58 169 — 227 Recognized on derivatives (2,082) 463 5,001 — 3,382 — Recognized on hedged items 2,096 (442) (4,910) — (3,256) Total gains (losses) (pre-tax) on interest rate contracts 14 79 260 — 353 — Foreign exchange contracts Amounts related to interest settlements on derivatives 35 — (483) — (448) Recognized on derivatives (5) — 308 (358) (55) (3) Recognized on hedged items 6 — (289) 350 67 Total gains (losses) (pre-tax) on foreign exchange contracts 36 — (464) (8) (436) (3) Total gains (losses) (pre-tax) recognized on fair value hedges $ 50 79 (204) (8) (83) (3)
Gains (Losses) Recognized on Cash Flow Hedging Relationships	Table 16.4: 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) Year ended December 31, 2021 Total amounts presented in the consolidated statement of income and other comprehensive income $ 28,634 (3,173) N/A 212 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (137) — (137) 137 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A 7 Total gains (losses) (pre-tax) on interest rate contracts (137) — (137) 144 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (6) (6) 6 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (19) Total gains (losses) (pre-tax) on foreign exchange contracts — (6) (6) (13) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (137) (6) (143) 131 Year ended December 31, 2020 Total amounts presented in the consolidated statement of income and other comprehensive income $ 34,230 (4,471) N/A 198 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (215) 4 (211) 211 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (215) 4 (211) 211 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (8) (8) 8 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 — (8) (8) 18 Total gains (losses) (pre-tax) recognized on cash flow hedges $ (215) (4) (219) 229 Year ended December 31, 2019 Total amounts presented in the consolidated statement of income and other comprehensive income $ 44,218 (7,350) N/A 275 Interest rate contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income (291) 1 (290) 290 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A — Total gains (losses) (pre-tax) on interest rate contracts (291) 1 (290) 290 Foreign exchange contracts: Realized gains (losses) (pre-tax) reclassified from OCI into net income — (9) (9) 9 Net unrealized gains (losses) (pre-tax) recognized in OCI N/A N/A N/A (21) Total gains (losses) (pre-tax) on foreign exchange contracts — (9) (9) (12) Total gains (losses) (pre-tax) recognized on cash flow hedges $ (291) (8) (299) 278
Hedged Items in Fair Value Hedging Relationships	Table 16.5 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 16.5: Hedged Items in Fair Value Hedging Relationship Hedged items currently designated Hedged items no longer designated (in millions) Carrying amount of assets/(liabilities) (1)(2) Hedge accounting Carrying amount of assets/(liabilities) (2) Hedge accounting basis adjustment December 31, 2021 Available-for-sale debt securities (4) $ 24,144 (559) 17,962 965 Deposits (10,187) (144) — — Long-term debt (138,801) (5,192) — — December 31, 2020 Available-for-sale debt securities (4) $ 29,538 827 17,091 1,111 Deposits (22,384) (477) — — Long-term debt (156,907) (12,466) (14,468) 31 (1) 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 $873 million and for long-term debt is $(2.7) billion as of December 31, 2021, and $17.6 billion for debt securities and $(4.7) billion for long-term debt as of December 31, 2020. (2) 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. (3) The balance includes $136 million and $188 million of debt securities and long-term debt cumulative basis adjustments as of December 31, 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.
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	Table 16.6 shows the net gains (losses), recognized by income statement lines, related to derivatives not designated as hedging instruments. Table 16.6: Gains (Losses) on Derivatives Not Designated as Hedging Instruments Noninterest income Noninterest expense (in millions) Mortgage banking Net gains on trading and securities Other Total Personnel expense Year ended December 31, 2021 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ (51) — (11) (62) — Equity contracts — 495 (1) 494 (611) Foreign exchange contracts — — 335 335 — Credit contracts — — (12) (12) — Subtotal (51) 495 311 755 (611) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 62 1,217 — 1,279 — Commodity contracts — 133 — 133 — Equity contracts — (4,549) (444) (4,993) — Foreign exchange contracts — 827 — 827 — Credit contracts — (93) — (93) — Subtotal 62 (2,465) (444) (2,847) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 11 (1,970) (133) (2,092) (611) Year ended December 31, 2020 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,787 — (93) 2,694 — Equity contracts — (1,167) (25) (1,192) (778) Foreign exchange contracts — — (455) (455) — Credit contracts — — 14 14 — Subtotal 2,787 (1,167) (559) 1,061 (778) Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 1,964 (1,021) — 943 — Commodity contracts — 446 — 446 — Equity contracts — (436) (334) (770) — Foreign exchange contracts — 89 — 89 — Credit contracts — (1) — (1) — Subtotal 1,964 (923) (334) 707 — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 4,751 (2,090) (893) 1,768 (778) Year ended December 31, 2019 Net gains (losses) recognized on economic hedges derivatives: Interest contracts (1) $ 2,177 — 1 2,178 — Equity contracts — (2,120) (2) (2,122) — Foreign exchange contracts — — (77) (77) — Credit contracts — — (5) (5) — Subtotal 2,177 (2,120) (83) (26) — Net gains (losses) recognized on customer accommodation trading and other derivatives: Interest contracts 418 (95) — 323 — Commodity contracts — 164 — 164 — Equity contracts — (4,863) (484) (5,347) — Foreign exchange contracts — 47 — 47 — Credit contracts — (120) — (120) — Subtotal 418 (4,867) (484) (4,933) — Net gains (losses) recognized related to derivatives not designated as hedging instruments $ 2,595 (6,987) (567) (4,959) —
Sold Credit Derivatives	Table 16.7 provides details of sold credit derivatives. Table 16.7: Sold Credit Derivatives Notional amount (in millions) Protection sold Protection sold – non-investment grade December 31, 2021 Credit default swaps $ 8,033 1,982 Risk participation swaps 6,756 6,012 Total credit derivatives 14,789 7,994 December 31, 2020 (1) Credit default swaps 5,707 1,805 Risk participation swaps 6,378 6,262 Total credit derivatives $ 12,085 8,067 (1) Prior period balances have been conformed to current period presentation.
Credit-Risk Contingent Features	Table 16.8 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 16.8: Credit-Risk Contingent Features (in billions) Dec 31, Dec 31, Net derivative liabilities with credit-risk contingent features $ 12.2 10.5 Collateral posted 11.0 9.0 Additional collateral to be posted upon a below investment grade credit rating (1) 1.2 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)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value on a Recurring Basis	Table 17.1 presents the balances of assets and liabilities recorded at fair value on a recurring basis. Table 17.1: Fair Value on a Recurring Basis December 31, 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 $ 27,607 2,249 — 29,856 $ 32,060 3,197 — 35,257 Collateralized loan obligations — 655 211 866 — 534 148 682 Corporate debt securities — 9,987 18 10,005 — 10,696 13 10,709 Federal agency mortgage-backed securities — 40,350 — 40,350 — 23,549 — 23,549 Non-agency mortgage-backed securities — 1,531 11 1,542 — 1,039 12 1,051 Other debt securities — 5,645 1 5,646 — 3,847 — 3,847 Total trading debt securities 27,607 60,417 241 88,265 32,060 42,862 173 75,095 Available-for-sale debt securities: Securities of U.S. Treasury and federal agencies 39,661 — — 39,661 22,159 — — 22,159 Non-U.S. government securities — 71 — 71 — 16,813 — 16,813 Securities of U.S. states and political subdivisions — 16,832 85 16,917 — 19,182 224 19,406 Federal agency mortgage-backed securities — 105,886 — 105,886 — 139,070 — 139,070 Non-agency mortgage-backed securities — 4,522 10 4,532 — 3,697 32 3,729 Collateralized loan obligations — 5,708 — 5,708 — 9,018 — 9,018 Other debt securities — 4,378 91 4,469 38 7,421 2,738 10,197 Total available-for-sale debt securities 39,661 137,397 186 177,244 22,197 195,201 2,994 220,392 Loans held for sale — 14,862 1,033 15,895 — 17,572 1,234 18,806 Mortgage servicing rights (residential) — — 6,920 6,920 — — 6,125 6,125 Derivative assets (gross): Interest rate contracts 52 22,296 190 22,538 11 35,590 462 36,063 Commodity contracts — 5,902 63 5,965 — 1,997 39 2,036 Equity contracts 6,402 9,350 2,019 17,771 4,888 12,384 1,613 18,885 Foreign exchange contracts 8 6,573 7 6,588 19 8,573 11 8,603 Credit contracts — 32 14 46 — 45 50 95 Total derivative assets (gross) 6,462 44,153 2,293 52,908 4,918 58,589 2,175 65,682 Equity securities: Marketable 29,968 82 4 30,054 23,995 596 5 24,596 Nonmarketable (1) — 57 8,906 8,963 10 21 9,228 9,259 Total equity securities 29,968 139 8,910 39,017 24,005 617 9,233 33,855 Total assets prior to derivative netting $ 103,698 256,968 19,583 380,249 $ 83,180 314,841 21,934 419,955 Derivative netting (2) (31,430) (39,836) Total assets after derivative netting 348,819 380,119 Derivative liabilities (gross): Interest rate contracts $ (28) (17,712) (63) (17,803) $ (27) (26,259) (16) (26,302) Commodity contracts — (2,351) (66) (2,417) — (1,503) (40) (1,543) Equity contracts (5,820) (10,753) (2,448) (19,021) (4,860) (15,219) (1,927) (22,006) Foreign exchange contracts (8) (6,654) (10) (6,672) (10) (8,134) (12) (8,156) Credit contracts — (40) (3) (43) — (49) (9) (58) Total derivative liabilities (gross) (5,856) (37,510) (2,590) (45,956) (4,897) (51,164) (2,004) (58,065) Short-sale trading liabilities (15,436) (5,249) — (20,685) (15,292) (7,149) — (22,441) Total liabilities prior to derivative netting $ (21,292) (42,759) (2,590) (66,641) $ (20,189) (58,313) (2,004) (80,506) Derivative netting (2) 36,532 41,556 Total liabilities after derivative netting (30,109) (38,950) (1) Excludes $81 million and $154 million of nonmarketable equity securities as of December 31, 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 16 (Derivatives) for additional information.
Changes in Level 3 Fair Value Assets and Liabilities on a Recurring Basis	Table 17.2 presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis. Table 17.2: 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) Year ended December 31, 2021 Trading debt securities $ 173 7 518 (448) (12) 34 (31) 241 (8) (6) Available-for-sale debt securities 2,994 21 809 (112) (278) 353 (3,601) 186 (4) (6) Loans held for sale 1,234 (25) 477 (534) (377) 394 (136) 1,033 (26) (7) Mortgage servicing rights (residential) (8) 6,125 (842) 1,645 (8) — — — 6,920 1,170 (7) Net derivative assets and liabilities: Interest rate contracts 446 27 — — (340) (5) (1) 127 (75) Equity contracts (314) (468) — — 379 (228) 202 (429) (266) Other derivative contracts 39 (114) 3 (3) 77 — 3 5 (36) Total derivative contracts 171 (555) 3 (3) 116 (233) 204 (297) (377) (9) Equity securities 9,233 (267) 1 (68) — 11 — 8,910 (316) (6) Year ended December 31, 2020 Trading debt securities $ 223 (53) 600 (589) (12) 115 (111) 173 (36) (6) Available-for-sale debt securities 1,565 (34) 43 (68) (263) 2,255 (504) 2,994 1 (6) Loans held for sale 1,214 (96) 1,312 (586) (323) 1,927 (2,214) 1,234 (38) (7) Mortgage servicing rights (residential) (8) 11,517 (7,068) 1,707 (32) 1 — — 6,125 (4,693) (7) Net derivative assets and liabilities: Interest rate contracts 214 2,074 — — (1,842) — — 446 334 Equity contracts (269) (316) — — 298 (22) (5) (314) (19) Other derivative contracts (5) (63) 8 3 73 22 1 39 11 Total derivative contracts (60) 1,695 8 3 (1,471) — (4) 171 326 (9) Equity securities 7,850 1,369 2 — — 23 (11) 9,233 1,370 (6) Year ended December 31, 2019 Trading debt securities $ 290 (31) 391 (385) (34) 1 (9) 223 (31) (6) Available-for-sale debt securities 2,044 (6) 475 (9) (743) 6 (202) 1,565 (4) (6) Loans held for sale 1,057 56 356 (237) (263) 354 (109) 1,214 51 (7) Mortgage servicing rights (residential) (8) 14,649 (4,779) 1,933 (286) — — — 11,517 (2,569) (7) Net derivative assets and liabilities: Interest rate contracts 25 585 — — (396) — — 214 249 Equity contracts (17) (571) — — 292 6 21 (269) (186) Other derivative contracts 13 (176) 13 (12) 132 2 23 (5) 12 Total derivative contracts 21 (162) 13 (12) 28 8 44 (60) 75 (9) Equity securities 5,468 2,383 — (1) — 12 (12) 7,850 2,386 (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 $41 million, $0 million, and $(40) million included in other comprehensive income from AFS debt securities for the years ended December 31, 2021, 2020 and 2019, 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, except for $1.8 billion of AFS debt securities that were transferred to HTM debt securities during fourth quarter 2021 and $153 million of AFS debt securities that were transferred to loans during third quarter 2019. (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 $(1) million and $57 million included in other comprehensive income from AFS debt securities for the years ended December 31, 2021 and 2020, respectively. (6) Included in net gains on trading and securities in the consolidated statement of income. (7) Included in mortgage banking income in the consolidated statement of income. (8) For additional information on the changes in mortgage servicing rights, see Note 9 (Mortgage Banking Activities).
Valuation Techniques - Recurring Basis	Table 17.3 provides quantitative information about the valuation techniques and significant unobservable inputs used in the valuation of our Level 3 assets and liabilities measured at fair value on a recurring basis. The significant unobservable inputs for Level 3 assets inherent in the fair values obtained from third-party vendors are not included in the table, as the specific inputs applied are not provided by the vendor (see discussion in the “Level 3 Asset and Liability Valuation Processes” section within this Note regarding vendor-developed valuations). Weighted averages of inputs are calculated using outstanding unpaid principal balance for cash instruments, such as loans and securities, and notional amounts for derivative instruments. Table 17.3: Valuation Techniques – Recurring Basis ($ in millions, except cost to service amounts) Fair Value Level 3 Valuation Technique Significant Range of Inputs Weighted December 31, 2021 Trading and available-for-sale debt securities $ 136 Discounted cash flow Discount rate 0.4 - 12.5 % 5.5 11 Vendor priced 280 Market comparable pricing Comparability adjustment (30.2) - 19.2 (4.6) Loans held for sale 1,033 Discounted cash flow Default rate 0.0 - 29.2 % 1.2 Discount rate 1.6 - 11.9 5.1 Loss severity 0.0 - 46.9 15.4 Prepayment rate 7.5 - 18.2 13.1 Mortgage servicing rights (residential) 6,920 Discounted cash flow Cost to service per loan (1) $ 54 - 585 106 Discount rate 5.8 - 8.8 % 6.4 Prepayment rate (2) 12.5 - 21.1 14.7 Net derivative assets and (liabilities): Interest rate contracts 87 Discounted cash flow Default rate 0.0 - 5.0 2.1 Loss severity 50.0 - 50.0 50.0 Prepayment rate 2.8 - 22.0 18.7 Interest rate contracts: derivative loan commitments 40 Discounted cash flow Fall-out factor 1.0 - 99.0 16.8 Initial-value servicing (74.8) - 146.0 bps 50.9 Equity contracts 253 Discounted cash flow Conversion factor (10.2) - 0.0 % (9.7) Weighted average life 0.5 - 2.0 yrs 1.1 (682) Option model Correlation factor (77.0) - 99.0 % 23.2 Volatility factor 6.5 - 72.0 29.1 Nonmarketable equity securities 8,906 Market comparable pricing Comparability adjustment (21.6) - (7.7) (15.5) Insignificant Level 3 assets, net of liabilities 9 Total Level 3 assets, net of liabilities $ 16,993 (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 commitments 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 $54 - $199 at December 31, 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 $19.6 billion and $21.9 billion and total Level 3 liabilities of $2.6 billion and $2.0 billion, before netting of derivative balances, at December 31, 2021 and 2020, respectively.
Fair Value on a Nonrecurring Basis	Table 17.4 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 December 31, 2021 and 2020, and for which a nonrecurring fair value adjustment was recorded during the years then ended. Table 17.4: Fair Value on a Nonrecurring Basis December 31, 2021 December 31, 2020 (in millions) Level 2 Level 3 Total Level 2 Level 3 Total Loans held for sale (1) $ 3,911 1,407 5,318 2,672 2,945 5,617 Loans: Commercial 476 — 476 1,385 — 1,385 Consumer 380 — 380 395 — 395 Total loans 856 — 856 1,780 — 1,780 Mortgage servicing rights (commercial) — 567 567 — 510 510 Nonmarketable equity securities 6,262 765 7,027 2,397 790 3,187 Other assets 1,373 175 1,548 1,350 428 1,778 Total assets at fair value on a nonrecurring basis $ 12,402 2,914 15,316 8,199 4,673 12,872 (1) Predominantly consists of commercial mortgages and residential mortgage – first lien loans.
Gains (Losses) on Assets with Nonrecurring Fair Value Adjustment	Table 17.5 presents the gains (losses) on certain assets held at the end of the reporting periods presented for which a nonrecurring fair value adjustment was recognized in earnings during the respective periods. Table 17.5: Gains (Losses) on Assets with Nonrecurring Fair Value Adjustment Year ended December 31, (in millions) 2021 2020 2019 Loans held for sale $ 33 12 11 Loans: Commercial (230) (754) (291) Consumer (564) (260) (207) Total loans (794) (1,014) (498) Mortgage servicing rights (commercial) 33 (37) — Nonmarketable equity securities (1) 4,407 435 322 Premises and equipment (2) — — (170) Other assets (3) (388) (469) (84) Total $ 3,291 (1,073) (419) (1) Includes impairment of nonmarketable equity securities and observable price changes related to nonmarketable equity securities accounted for under the measurement alternative. (2) Includes the full impairment of certain capitalized software projects. (3) Includes impairment of operating lease ROU assets, valuation losses on foreclosed real estate and other collateral owned, and impairment of private equity and venture capital investments in consolidated portfolio companies.
Valuation Techniques - Nonrecurring Basis	Table 17.6 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 17.6: Valuation Techniques – Nonrecurring Basis ($ in millions) Fair Value Valuation Significant Range of Inputs Weighted December 31, 2021 Loans held for sale (2) $ 1,407 Discounted cash flow Default rate (3) 0.2 - 78.3 % 25.6 Discount rate 0.6 - 12.0 3.3 Loss severity 0.4 - 45.6 4.8 Prepayment rate (4) 5.4 - 100.0 38.9 Mortgage servicing rights (commercial) 567 Discounted cash flow Cost to service per loan $ 150 - 3,381 2,771 Discount rate 4.0 - 4.5 % 4.0 Prepayment rate 0.0 - 20.6 5.5 Nonmarketable equity securities 745 Market comparable pricing Comparability adjustment (100.0) - (33.0) (59.0) 15 Market comparable pricing Multiples 2.0x - 3.3x 2.8x 5 Discounted cash flow Discount rate 10.5 - 10.5 % 10.5 Other assets 175 Discounted cash flow Discount rate 0.2 - 4.4 2.9 Total $ 2,914 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) Refer to the narrative following Table 17.3 for a definition of the valuation technique(s) and significant unobservable inputs used in the valuation of loans held for sale, mortgage servicing rights, certain nonmarketable equity securities, and other assets. (2) Consists of approximately $1.2 billion and $2.6 billion of government insured/guaranteed loans purchased from GNMA-guaranteed mortgage securitizations at December 31, 2021, and December 31, 2020, respectively, and approximately $200 million and $300 million of other mortgage loans that are not government insured/guaranteed at December 31, 2021, and December 31, 2020, respectively. (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 17.7 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 December 31, 2021 and 2020. Table 17.7: Fair Value Option December 31, 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 $ 15,895 15,750 145 18,806 18,217 589
Fair Value Estimates for Financial Instruments	Table 17.8 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 17.8. 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 at both December 31, 2021 and 2020. 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 17.8: Fair Value Estimates for Financial Instruments Estimated fair value (in millions) Carrying amount Level 1 Level 2 Level 3 Total December 31, 2021 Financial assets Cash and due from banks (1) $ 24,616 24,616 — — 24,616 Interest-earning deposits with banks (1) 209,614 209,452 162 — 209,614 Federal funds sold and securities purchased under resale agreements (1) 66,223 — 66,223 — 66,223 Held-to-maturity debt securities 272,022 16,825 252,717 2,844 272,386 Loans held for sale 7,722 — 6,300 1,629 7,929 Loans, net (2) 868,278 — 63,404 820,559 883,963 Nonmarketable equity securities (cost method) 3,584 — — 3,646 3,646 Total financial assets $ 1,452,059 250,893 388,806 828,678 1,468,377 Financial liabilities Deposits (3) $ 30,012 — 14,401 15,601 30,002 Short-term borrowings 34,409 — 34,409 — 34,409 Long-term debt (4) 160,660 — 166,682 1,402 168,084 Total financial liabilities $ 225,081 — 215,492 17,003 232,495 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 $14.5 billion and $15.4 billion at December 31, 2021 and 2020, respectively. (3) Excludes deposit liabilities with no defined or contractual maturity of $1.5 trillion and $1.4 trillion at December 31, 2021 and 2020, respectively. (4) Excludes obligations under finance leases of $26 million and $28 million at December 31, 2021 and 2020, respectively.

Preferred Stock (Tables)

Preferred Stock (Tables)	12 Months Ended
	Dec. 31, 2021
Preferred Stock [Abstract]
Preferred Stock	Table 18.1: Preferred Stock December 31, 2021 December 31, 2020 (in millions, except shares) Shares Shares issued and outstanding Liquidation preference value Carrying Shares Shares Liquidation preference value Carrying value DEP Shares Dividend Equalization Preferred Shares (DEP) 97,000 96,546 $ — — 97,000 96,546 $ — — Series I (1) Floating Class A Preferred Stock — — — — 25,010 25,010 2,501 2,501 Series L (2) 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock 4,025,000 3,967,995 3,968 3,200 4,025,000 3,967,995 3,968 3,200 Series N (3) 5.20% Non-Cumulative Perpetual Class A Preferred Stock — — — — 30,000 30,000 750 750 Series O (3) 5.125% Non-Cumulative Perpetual Class A Preferred Stock — — — — 27,600 26,000 650 650 Series P (3) 5.25% Non-Cumulative Perpetual Class A Preferred Stock — — — — 26,400 25,000 625 625 Series Q 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 69,000 69,000 1,725 1,725 69,000 69,000 1,725 1,725 Series R 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 34,500 33,600 840 840 34,500 33,600 840 840 Series S 5.90% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 80,000 2,000 2,000 80,000 80,000 2,000 2,000 Series U 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock 80,000 80,000 2,000 2,000 80,000 80,000 2,000 2,000 Series W (3) 5.70% Non-Cumulative Perpetual Class A Preferred Stock — — — — 40,000 40,000 1,000 1,000 Series X (3) 5.50% Non-Cumulative Perpetual Class A Preferred Stock — — — — 46,000 46,000 1,150 1,150 Series Y 5.625% Non-Cumulative Perpetual Class A Preferred Stock 27,600 27,600 690 690 27,600 27,600 690 690 Series Z 4.75% Non-Cumulative Perpetual Class A Preferred Stock 80,500 80,500 2,013 2,013 80,500 80,500 2,013 2,013 Series AA 4.70% Non-Cumulative Perpetual Class A Preferred Stock 46,800 46,800 1,170 1,170 46,800 46,800 1,170 1,170 Series BB 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock 140,400 140,400 3,510 3,510 — — — — Series CC 4.375% Non-Cumulative Perpetual Class A Preferred Stock 46,000 42,000 1,050 1,050 — — — — Series DD 4.25% Non-Cumulative Perpetual Class A Preferred Stock 50,000 50,000 1,250 1,250 — — — — ESOP (4) Cumulative Convertible Preferred Stock 609,434 609,434 609 609 822,242 822,242 822 822 Total 5,386,234 5,323,875 $ 20,825 20,057 5,557,652 5,496,293 $ 21,904 21,136 (1) 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. Prior to redemption, Preferred Stock, Series I, was related to trust preferred securities. See Note 8 (Securitizations and Variable Interest Entities) for additional information. (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; in third quarter 2021, Preferred Stock, Series O and Series X, were fully 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 18.2: ESOP Preferred Stock Shares issued and outstanding Carrying value Adjustable dividend rate (in millions, except shares) Dec 31, Dec 31, Dec 31, Dec 31, Minimum Maximum ESOP Preferred Stock $1,000 liquidation preference per share 2018 189,225 221,945 $ 189 222 7.00 % 8.00 % 2017 135,135 163,210 135 163 7.00 8.00 2016 128,380 162,450 128 162 9.30 10.30 2015 68,106 92,904 68 93 8.90 9.90 2014 62,420 99,151 63 99 8.70 9.70 2013 26,168 61,948 26 62 8.50 9.50 2012 — 20,634 — 21 10.00 11.00 Total ESOP Preferred Stock (1) 609,434 822,242 $ 609 822 Unearned ESOP shares (2) $ (646) (875) (1) At December 31, 2021 and 2020, additional paid-in capital included $37 million and $53 million, respectively, related to ESOP preferred stock. (2) We recorded a corresponding charge to unearned ESOP shares in connection with the issuance of the ESOP Preferred Stock. The unearned ESOP shares are reduced as shares of the ESOP Preferred Stock are committed to be released.

Common Stock and Stock Plans (T

Common Stock and Stock Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Common Stock Shares	Table 19.1 presents our reserved, issued and authorized shares of common stock at December 31, 2021. Table 19.1: Common Stock Shares Number of shares Dividend reinvestment and common stock purchase plans 9,190,147 Director plans 173,238 Stock plans (1) 353,806,684 Convertible securities and warrants 65,835,437 Total shares reserved 429,005,506 Shares issued 5,481,811,474 Shares not reserved or issued 3,089,183,020 Total shares authorized 9,000,000,000 (1) Includes employee restricted share rights, performance share awards, 401(k), and deferred compensation plans.
Stock Incentive Compensation Expense	Table 19.2 summarizes the major components of stock incentive compensation expense and the related recognized tax benefit. Table 19.2: Stock Incentive Compensation Expense Year ended December 31, (in millions) 2021 2020 2019 RSRs $ 931 732 1,109 Performance shares (1) 74 (110) 108 Total stock incentive compensation expense $ 1,005 622 1,217 Related recognized tax benefit $ 248 154 301
Restricted Share Rights	A summary of the status of our RSRs at December 31, 2021, and changes during 2021 is presented in Table 19.3. Table 19.3: Restricted Share Rights Number Weighted- average grant-date fair value Nonvested at January 1, 2021 46,231,770 $ 46.30 Granted 31,143,741 32.99 Vested (21,954,589) 48.28 Canceled or forfeited (3,816,743) 38.76 Nonvested at December 31, 2021 51,604,179 37.98
Performance Share Awards	A summary of the status of our PSAs at December 31, 2021, and changes during 2021 is in Table 19.4, based on the performance adjustments recognized as of December 2021. Table 19.4: Performance Share Awards Number Weighted-average Nonvested at January 1, 2021 5,553,608 $ 45.45 Granted 1,414,431 $ 32.76 Vested (791,681) $ 55.15 Canceled or forfeited (1,493,389) $ 55.95 Nonvested at December 31, 2021 4,682,969 $ 36.63 (1) Reflects approval date fair value for grants subject to variable accounting.
Wells Fargo ESOP Fund	Table 19.5 presents the information related to the Wells Fargo ESOP Fund and the dividends paid to the 401 (K) Plan. Table 19.5: Wells Fargo ESOP Fund Shares outstanding December 31, (in millions, except shares) 2021 2020 2019 Allocated shares (common) 149,638,081 155,810,091 138,978,383 Unreleased shares (preferred) 609,434 822,242 1,071,418 Conversion value of unreleased ESOP preferred shares $ 609 822 1,072 Fair value of unreleased ESOP preferred shares based on redemption 700 990 1,231 Dividends paid Year ended December 31, 2021 2020 2019 Allocated shares (common) $ 74 155 233 Unreleased shares (preferred) 66 77 101

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue by Operating Segment	Table 20.1 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 26 (Operating Segments). Table 20.1: Revenue by Operating Segment (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Consolidated Year ended December 31, 2021 Net interest income (2) $ 22,807 4,960 7,410 2,570 (1,541) (427) 35,779 Noninterest income: Deposit-related fees 3,045 1,285 1,112 28 5 — 5,475 Lending-related fees (2) 145 532 761 8 (1) — 1,445 Investment advisory and other asset-based fees (3) — 10 52 9,574 1,375 — 11,011 Commissions and brokerage services fees — — 290 2,010 (1) — 2,299 Investment banking fees (11) 53 2,405 1 (94) — 2,354 Card fees: Card interchange and network revenues (4) 3,426 196 45 4 — — 3,671 Other card fees (2) 504 — — — — — 504 Total card fees 3,930 196 45 4 — — 4,175 Mortgage banking (2) 4,490 — 480 (12) (2) — 4,956 Net gains (losses) from trading activities (2) — — 272 21 (9) — 284 Net gains on debt securities (2) — 44 — — 509 — 553 Net gains (losses) from equity securities (2) (2) 132 289 79 5,929 — 6,427 Lease income (2) — 682 33 — 281 — 996 Other (2) 473 655 690 63 2,044 (1,187) 2,738 Total noninterest income 12,070 3,589 6,429 11,776 10,036 (1,187) 42,713 Total revenue $ 34,877 8,549 13,839 14,346 8,495 (1,614) 78,492 Year ended December 31, 2020 Net interest income (2) $ 23,378 6,134 7,509 2,988 441 (494) 39,956 Noninterest income: Deposit-related fees 2,904 1,219 1,062 27 9 — 5,221 Lending-related fees (2) 158 531 684 9 (1) — 1,381 Investment advisory and other asset-based fees (3) — 32 95 8,085 1,651 — 9,863 Commissions and brokerage services fees — — 315 2,078 (9) — 2,384 Investment banking fees (8) 76 1,952 14 (169) — 1,865 Card fees: Card interchange and network revenues (4) 2,805 170 51 3 1 — 3,030 Other card fees (2) 513 — — — 1 — 514 Total card fees 3,318 170 51 3 2 — 3,544 Mortgage banking (2) 3,224 — 282 (13) — — 3,493 Net gains (losses) from trading activities (2) 1 (4) 1,190 25 (40) — 1,172 Net gains on debt securities (2) 6 — — — 867 — 873 Net gains (losses) from equity securities (2) 10 (147) 212 (101) 691 — 665 Lease income (2) — 646 20 — 579 — 1,245 Other (2) 1,025 518 556 98 1,336 (931) 2,602 Total noninterest income 10,638 3,041 6,419 10,225 4,916 (931) 34,308 Total revenue $ 34,016 9,175 13,928 13,213 5,357 (1,425) 74,264 Year ended December 31, 2019 Net interest income (2) $ 25,786 7,981 8,008 3,906 2,246 (624) 47,303 Noninterest income: Deposit-related fees 3,582 1,175 1,029 24 9 — 5,819 Lending-related fees (2) 230 524 710 8 2 — 1,474 Investment advisory and other asset-based fees (3) — 27 62 7,909 1,816 — 9,814 Commissions and brokerage services fees — — 292 2,170 (1) — 2,461 Investment banking fees (5) 85 1,804 6 (93) — 1,797 Card fees: Card interchange and network revenues (4) 2,973 254 79 6 6 — 3,318 Other card fees (2) 699 — — — (1) — 698 Total card fees 3,672 254 79 6 5 — 4,016 Mortgage banking (2) 2,314 — 413 (12) — — 2,715 Net gains (losses) from trading activities (2) 2 (10) 1,022 58 (79) — 993 Net gains (losses) on debt securities (2) — 4 (5) — 141 — 140 Net gains from equity securities (2) 4 115 297 256 2,171 — 2,843 Lease income (2) — 931 22 — 661 — 1,614 Other (2) 2,306 616 717 81 2,918 (795) 5,843 Total noninterest income 12,105 3,721 6,442 10,506 7,550 (795) 39,529 Total revenue $ 37,891 11,702 14,450 14,412 9,796 (1,419) 86,832 (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 $1.2 billion, $1.1 billion, and $1.2 billion for the years ended December 31, 2021, 2020 and 2019, respectively.

Employee Benefits and Other E_2

Employee Benefits and Other Expenses (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Changes in Benefit Obligation and Fair Value of Plan Assets	Table 21.1 presents the changes in the benefit obligation and the fair value of plan assets, the funded status, and the amounts recognized on the consolidated balance sheet. Changes in the benefit obligation for the qualified plans were driven by the amounts of benefits paid and changes in the actuarial loss (gain) amounts, which primarily reflected changes in the discount rates at December 31, 2021 and 2020, respectively. Table 21.1: Changes in Benefit Obligation and Fair Value of Plan Assets December 31, 2021 December 31, 2020 Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Change in benefit obligation: Benefit obligation at beginning of year $ 11,956 556 491 11,116 572 525 Service cost 17 — — 14 — — Interest cost 296 12 11 325 16 16 Plan participants’ contributions — — 40 — — 43 Actuarial loss (gain) (414) (18) (34) 1,205 25 (15) Benefits paid (818) (49) (69) (706) (57) (78) Settlements, Curtailments, and Amendments (2) — — (1) — — Foreign exchange impact (3) — — 3 — — Benefit obligation at end of year 11,032 501 439 11,956 556 491 Change in plan assets: Fair value of plan assets at beginning of year 12,061 — 549 10,763 — 540 Actual return on plan assets 324 — 25 1,291 — 38 Employer contribution 15 49 5 712 57 6 Plan participants’ contributions — — 40 — — 43 Benefits paid (818) (49) (69) (706) (57) (78) Settlement — — — (1) — — Foreign exchange impact (1) — — 2 — — Fair value of plan assets at end of year 11,581 — 550 12,061 — 549 Funded status at end of year $ 549 (501) 111 105 (556) 58 Amounts recognized on the consolidated balance sheet at end of year: Assets $ 620 — 133 181 — 84 Liabilities (71) (501) (22) (76) (556) (26)
Plans with Benefit Obligations in Excess of Plan Assets	Table 21.2 provides information for pension and postretirement plans with benefit obligations in excess of plan assets. Table 21.2: Plans with Benefit Obligations in Excess of Plan Assets December 31, 2021 December 31, 2020 (in millions) Pension Benefits Other Benefits Pension Benefits Other Benefits Projected benefit obligation $ 664 N/A 715 N/A Accumulated benefit obligation 631 22 684 26 Fair value of plan assets 91 — 82 —
Net Periodic Benefit Cost and Other Comprehensive Income	Table 21.3 presents the components of net periodic benefit cost and other comprehensive income (OCI). 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 21.3: Net Periodic Benefit Cost and Other Comprehensive Income December 31, 2021 December 31, 2020 December 31, 2019 Pension benefits Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Service cost $ 17 — — 14 — — 11 — — Interest cost 296 12 11 325 16 16 419 22 23 Expected return on plan assets (598) — (19) (603) — (21) (567) — (28) Amortization of net actuarial loss (gain) 140 15 (20) 157 14 (19) 148 10 (17) Amortization of prior service credit — — (10) — — (10) — — (10) Settlement loss 134 2 — 121 3 — — 2 — Net periodic benefit cost (11) 29 (38) 14 33 (34) 11 34 (32) Other changes in plan assets and benefit obligations recognized in other comprehensive income: Net actuarial loss (gain) (142) (18) (40) 517 25 (32) 38 49 (47) Amortization of net actuarial gain (loss) (140) (15) 20 (157) (14) 19 (148) (10) 17 Amortization of prior service credit — — 10 — — 10 — — 10 Settlement (134) (2) — (121) (3) — — (2) — Total recognized in other comprehensive income (416) (35) (10) 239 8 (3) (110) 37 (20) Total recognized in net periodic benefit cost and other comprehensive income $ (427) (6) (48) 253 41 (37) (99) 71 (52)
Benefits Recognized in Cumulative OCI	Table 21.4 provides the amounts recognized in cumulative OCI (pre-tax). Table 21.4: Benefits Recognized in Cumulative OCI December 31, 2021 December 31, 2020 Pension benefits Pension benefits (in millions) Qualified Non- qualified Other benefits Qualified Non- qualified Other benefits Net actuarial loss (gain) $ 3,049 159 (390) 3,465 194 (370) Net prior service cost (credit) 1 — (126) 1 — (136) Total $ 3,050 159 (516) 3,466 194 (506)
Weighted-Average Assumptions Used to Estimate Projected Benefit Obligation and to Determine Net Periodic Benefit Cost	Table 21.5 presents the weighted-average assumptions used to estimate the projected benefit obligation. Table 21.5: Weighted-Average Assumptions Used to Estimate Projected Benefit Obligation December 31, 2021 December 31, 2020 Pension benefits Pension benefits Qualified Non- qualified Other Qualified Non- qualified Other Discount rate 2.85 % 2.60 2.71 2.46 2.15 2.31 Interest crediting rate 2.69 1.25 N/A 2.66 0.87 N/A Table 21.6 presents the weighted-average assumptions used to determine the net periodic benefit cost, including the impact of interim re-measurements as applicable. Table 21.6: Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost December 31, 2021 December 31, 2020 December 31, 2019 Pension benefits Pension benefits Pension benefits Qualified Non- qualified Other Qualified Non- qualified Other Qualified Non- qualified Other Discount rate 2.63 % 2.32 2.31 2.95 3.12 3.10 4.30 4.10 4.24 Interest crediting rate 2.68 1.08 N/A 2.68 1.46 N/A 3.22 2.05 N/A Expected return on plan assets 5.17 N/A 3.50 5.74 N/A 4.00 6.24 N/A 5.75
Projected Benefit Payments	Future benefits that we expect to pay under the pension and other benefit plans are presented in Table 21.7. Table 21.7: Projected Benefit Payments Pension benefits (in millions) Qualified Non- qualified Other benefits Year ended December 31, 2022 $ 859 44 38 2023 734 42 36 2024 690 41 34 2025 696 39 33 2026 694 38 31 2027-2031 3,284 161 135
Pension and Other Benefit Plan Assets	Table 21.8 presents the classification of the fair value of the pension plan and other benefit plan assets in the fair value hierarchy. See Note 17 (Fair Values of Assets and Liabilities) for a description of the fair value hierarchy. Table 21.8: Pension and Other Benefit Plan Assets Carrying value at year end Pension plan assets Other benefits plan assets (in millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total December 31, 2021 Cash and cash equivalents $ 2 242 — 244 40 143 — 183 Long duration fixed income (1) 1,562 6,827 1 8,390 — — — — Intermediate (core) fixed income (2) — 429 — 429 — 193 — 193 High-yield fixed income — 134 — 134 — — — — International fixed income — 83 — 83 — — — — Domestic large-cap stocks (3) 378 57 — 435 11 67 — 78 Domestic mid-cap stocks 104 60 — 164 — 20 — 20 Domestic small-cap stocks 94 6 — 100 — 11 — 11 Global stocks (4) — 204 — 204 — — — — International stocks (5) 139 216 — 355 11 24 — 35 Emerging market stocks 30 96 — 126 — — — — Real estate 87 28 1 116 — — — — Hedge funds/absolute return — 54 — 54 — — — — Other 111 45 9 165 6 — 24 30 Plan investments – excluding investments at NAV $ 2,507 8,481 11 10,999 68 458 24 550 Investments at NAV (6) 533 — Net receivables 49 — Total plan assets $ 11,581 550 December 31, 2020 Cash and cash equivalents $ 68 154 — 222 46 145 — 191 Long duration fixed income (1) 1,032 6,092 — 7,124 — — — — Intermediate (core) fixed income (2) — 333 — 333 — 186 — 186 High-yield fixed income — 232 — 232 — — — — International fixed income — 136 — 136 — — — — Domestic large-cap stocks (3) 647 242 — 889 — 74 — 74 Domestic mid-cap stocks 216 121 — 337 — 20 — 20 Domestic small-cap stocks 212 10 — 222 — 12 — 12 Global stocks (4) — 417 — 417 — — — — International stocks (5) 260 440 1 701 12 25 — 37 Emerging market stocks 51 216 — 267 — — — — Real estate 133 44 2 179 — — — — Hedge funds/absolute return 73 77 — 150 — — — — Other 174 65 9 248 5 — 24 29 Plan investments – excluding investments at NAV $ 2,866 8,579 12 11,457 63 462 24 549 Investments at NAV (6) 572 — Net receivables 32 — Total plan assets $ 12,061 549 (1) This category includes a diversified mix of assets, which are being managed in accordance with a duration target of approximately 11 years and 12 years for December 31, 2021 and 2020 , respectively, and an emphasis on corporate credit bonds combined with investments in U.S. Treasury securities and other U.S. agency and non-agency bonds. (2) This category includes assets that are intermediate duration, investment grade bonds held in investment strategies benchmarked to the Bloomberg U.S. Aggregate Bond Index or comparable index, including U.S. Treasury securities, agency and non-agency asset-backed bonds and corporate bonds. (3) This category covers a broad range of investment styles, including active, enhanced index and passive approaches, as well as style characteristics of value, core and growth emphasized strategies. Assets in this category are currently diversified across eight unique investment strategies with no single investment manager strategy representing more than 2.0% of total plan assets in both years. (4) This category consists of four and five unique investment strategies for December 31, 2021 and 2020, respectively, providing exposure to broadly diversified, global equity investments with no single strategy representing more than 1.0% and 1.5% of total Plan assets for December 31, 2021 and 2020, respectively. (5) This category includes assets diversified across five unique investment strategies providing exposure to companies in developed market, non-U.S. countries with no single strategy representing more than 1.5% of total plan assets in both years. (6) Consists of certain investments that are measured at fair value using NAV per share (or its equivalent) as a practical expedient and are excluded from the fair value hierarchy.
Fair Value Level 3 Pension and Other Benefit Plan Assets	Table 21.9 presents the changes in Level 3 pension plan and other benefit plan assets measured at fair value. Table 21.9: Fair Value Level 3 Pension and Other Benefit Plan Assets Balance beginning Gains Purchases, sales and settlements (net) Transfer into/(out of) Level 3 Balance end of year (in millions) Year ended December 31, 2021 Pension plan assets $ 12 6 (8) 1 11 Other benefits plan assets 24 — — — 24 Year ended December 31, 2020 Pension plan assets 16 (1) (4) 1 12 Other benefits plan assets 24 — — — 24 (1) Represents unrealized and realized gains (losses).

Restructuring Charges (Tables)

Restructuring Charges (Tables)	12 Months Ended
	Dec. 31, 2021
Restructuring Costs [Abstract]
Accrual for Restructuring Charges	Table 22.1 provides details on our restructuring charges. Table 22.1: Accruals for Restructuring Charges (in millions) Personnel costs Facility closure costs Other Total December 31, 2019 $ — — — — Restructuring charges 1,371 80 144 1,595 Payments and utilization (105) (80) (100) (285) Changes in estimates (96) — — (96) December 31, 2020 $ 1,170 — 44 1,214 Restructuring charges 716 10 — 726 Payments and utilization (683) (4) (38) (725) Changes in estimates (638) (6) (6) (650) December 31, 2021 $ 565 — — 565

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	Table 23.1 presents the components of income tax expense (benefit). Table 23.1: Income Tax Expense (Benefit) (1) Year ended December 31, (in millions) 2021 2020 2019 Current: U.S. Federal $ 5,850 2,231 6,781 U.S. State and local 849 (310) 2,018 Non-U.S. 171 211 154 Total current 6,870 2,132 8,953 Deferred: U.S. Federal (1,446) (2,440) (2,331) U.S. State and local 200 (789) (852) Non-U.S. (46) (60) (9) Total deferred (1,292) (3,289) (3,192) Total $ 5,578 (1,157) 5,761 (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) .
Effective Income Tax Expense (Benefit) and Rate	Table 23.2 reconciles the statutory federal income tax rate to the effective income tax rate. Our effective tax rate is calculated by dividing income tax expense (benefit) by income before income tax expense (benefit) less the net income from noncontrolling interests. Table 23.2: Effective Income Tax Expense (Benefit) and Rate (1) December 31, 2021 2020 2019 (in millions) Amount Rate Amount Rate Amount Rate Statutory federal income tax expense and rate $ 5,697 21.0 % $ 466 21.0 % $ 5,350 21.0 % Change in tax rate resulting from: State and local taxes on income, net of federal income tax benefit 1,046 3.9 65 2.8 944 3.7 Tax-exempt interest (316) (1.2) (358) (16.1) (460) (1.8) Tax credits, net of amortization (2) (1,001) (3.7) (626) (28.2) (530) (2.1) Nondeductible expenses (3) 368 1.4 199 9.0 800 3.1 Changes in prior year unrecognized tax benefits, inclusive of interest (122) (0.4) (938) (42.2) (88) (0.3) Other (94) (0.4) 35 1.6 (255) (1.0) Effective income tax expense (benefit) and rate $ 5,578 20.6 % $ (1,157) (52.1) % $ 5,761 22.6 % (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) Includes LIHTC proportional amortization expense, net of tax of $1.2 billion, $1.1 billion and $961 million in 2021, 2020 and 2019, respectively. (3) Includes nondeductible litigation accruals. Also, includes $155 million of nondeductible goodwill in 2021.
Net Deferred Taxes	The tax effects of our temporary differences that gave rise to significant portions of our deferred tax assets and liabilities are presented in Table 23.3. Table 23.3: Net Deferred Taxes (1) (in millions) Dec 31, Dec 31, Deferred tax assets Allowance for credit losses $ 3,415 4,871 Deferred compensation and employee benefits 3,124 3,225 Accrued expenses 1,300 1,503 Lease liabilities (2) 1,142 1,262 Net operating loss and tax credit carry forwards 382 366 Other 1,048 944 Total deferred tax assets 10,411 12,171 Deferred tax assets valuation allowance (267) (310) Deferred tax liabilities Mark to market, net (3,631) (4,043) Leasing and fixed assets (3,523) (4,163) Mortgage servicing rights (2,414) (2,647) Right-of-use assets (2) (948) (1,085) Intangible assets (559) (605) Basis difference in investments (496) (1,484) Net unrealized gains on debt securities (278) (1,056) Other (1,082) (1,468) Total deferred tax liabilities (12,931) (16,551) Net deferred tax liability (3)(4) $ (2,787) (4,690) (1) Prior period balances have been revised to conform with the current period presentation. (2) We revised prior period balances to separate deferred tax assets and liabilities that were previously reported on a net basis. This change had no impact on the net deferred tax liability that was previously reported. (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. For additional information, see Note 1 (Summary of Significant Accounting Policies). As a result of these changes, the net deferred tax liability decreased by $68 million at December 31, 2020. (4) The net deferred tax liability is included in accrued expenses and other liabilities.
Change in Unrecognized Tax Benefits	Table 23.4 presents the change in unrecognized tax benefits. Table 23.4: Change in Unrecognized Tax Benefits Year ended December 31, (in millions) 2021 2020 Balance at beginning of year $ 4,826 6,996 Additions: For tax positions related to the current year 441 52 For tax positions related to prior years 259 263 Reductions: For tax positions related to prior years (124) (1,820) Lapse of statute of limitations (164) (3) Settlements with tax authorities (20) (662) Balance at end of year $ 5,218 4,826
Tax Examination Status	Table 23.5 summarizes our major tax jurisdiction examination status as of December 31, 2021. Table 23.5: Tax Examination Status Jurisdiction Tax Year(s) Status United States 2011-2014 Administrative appeals United States 2015-2018 Field examination California 2015-2016 Field examination New York 2015-2019 Field examination

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Common Share Calculations	Table 24.1 shows earnings per common share and diluted earnings per common share and reconciles the numerator and denominator of both earnings per common share calculations. See the Consolidated Statement of Changes in Equity and Note 19 (Common Stock and Stock Plans) for information about stock and options activity. Table 24.1: Earnings Per Common Share Calculations Year ended December 31, (in millions, except per share amounts) 2021 2020 2019 Wells Fargo net income (1) $ 21,548 3,377 19,715 Less: Preferred stock dividends and other (2) 1,292 1,591 1,612 Wells Fargo net income applicable to common stock (numerator) (1) $ 20,256 1,786 18,103 Earnings per common share Average common shares outstanding (denominator) 4,061.9 4,118.0 4,393.1 Per share $ 4.99 0.43 4.12 Diluted earnings per common share Average common shares outstanding 4,061.9 4,118.0 4,393.1 Add: Stock options (3) — — 0.8 Restricted share rights (3) 34.3 16.2 31.5 Diluted average common shares outstanding (denominator) 4,096.2 4,134.2 4,425.4 Per share $ 4.95 0.43 4.09 (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 years ended December 31, 2021, 2020 and 2019, balance includes $87 million, $301 million and $220 million, respectively, from the elimination of discounts or issuance costs associated with redemptions of preferred stock. (3) Calculated using the treasury stock method.
Outstanding Anti-Dilutive Securities	Table 24.2 presents the outstanding securities that were anti-dilutive and therefore not included in the calculation of diluted earnings per common share. Table 24.2: Outstanding Anti-Dilutive Securities Weighted-average shares Year ended December 31, (in millions) 2021 2020 2019 Convertible Preferred Stock, Series L (1) 25.3 25.3 25.3 Restricted share rights (2) 0.2 1.1 — (1) Calculated using the if-converted method.
Dividends Declared per Common Share	Table 24.3 presents dividends declared per common share. Table 24.3: Dividends Declared Per Common Share Year ended December 31, 2021 2020 2019 Per common share $ 0.60 1.22 1.92

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2021
Cumulative Other Comprehensive Income Balances [Abstract]
Summary of Other Comprehensive Income	Table 25.1 provides the components of other comprehensive income (OCI), reclassifications to net income by income statement line item, and the related tax effects. Table 25.1: Summary of Other Comprehensive Income Year ended December 31, 2021 2020 2019 (in millions) Before Tax Net of Before Tax Net of Before Tax Net of Debt securities: Net unrealized gains (losses) arising during the period (3,070) 759 (2,311) 2,317 (570) 1,747 $ 5,439 (1,337) 4,102 Reclassification of net (gains) losses to net income: Interest income on debt securities (1) 474 (117) 357 532 (132) 400 263 (65) 198 Net gains on debt securities (553) 134 (419) (873) 213 (660) (140) 34 (106) Other noninterest income (3) 1 (2) — — — (1) — (1) Subtotal reclassifications to net income (82) 18 (64) (341) 81 (260) 122 (31) 91 Net change (3,152) 777 (2,375) 1,976 (489) 1,487 5,561 (1,368) 4,193 Derivatives and hedging activities: Fair Value Hedges: Change in fair value of excluded components on fair value hedges (2) 81 (20) 61 (31) 7 (24) (3) 1 (2) Cash Flow Hedges: Net unrealized gains (losses) arising during the period on cash flow hedges (12) 3 (9) 10 (2) 8 (21) 5 (16) Reclassification of net (gains) losses to net income: Interest income on loans 137 (34) 103 215 (53) 162 291 (72) 219 Interest expense on long-term debt 6 (2) 4 4 (1) 3 8 (2) 6 Subtotal reclassifications to net income 143 (36) 107 219 (54) 165 299 (74) 225 Net change 212 (53) 159 198 (49) 149 275 (68) 207 Defined benefit plans adjustments: Net actuarial and prior service gains (losses) arising during the period 200 (50) 150 (510) 126 (384) (40) 10 (30) Reclassification of amounts to noninterest expense (3): Amortization of net actuarial loss 135 (33) 102 152 (37) 115 141 (35) 106 Settlements and other 126 (29) 97 114 (26) 88 (8) 5 (3) Subtotal reclassifications to noninterest expense 261 (62) 199 266 (63) 203 133 (30) 103 Net change 461 (112) 349 (244) 63 (181) 93 (20) 73 Foreign currency translation adjustments: Net unrealized gains (losses) arising during the period (30) 1 (29) 52 (2) 50 73 (2) 71 Reclassification of net (gains) losses to net income: Other noninterest income (1) — (1) — — — — — — Net change (31) 1 (30) 52 (2) 50 73 (2) 71 Other comprehensive income (loss) (2,510) 613 (1,897) 1,982 (477) 1,505 6,002 (1,458) 4,544 Less: Other comprehensive loss from noncontrolling interests, net of tax (1) — — Wells Fargo other comprehensive income (loss), net of tax (1,896) 1,505 4,544 (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 21 (Employee Benefits and Other Expenses) for additional information).
Cumulative OCI Balances	Table 25.2 provides the cumulative OCI balance activity on an after-tax basis. Table 25.2: 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) Balance, December 31, 2018 $ (3,122) (178) (507) (2,296) (233) (6,336) Transition adjustment (3) 481 — — — — 481 Balance, January 1, 2019 (2,641) (178) (507) (2,296) (233) (5,855) Net unrealized gains (losses) arising during the period 4,102 (2) (16) (30) 71 4,125 Amounts reclassified from accumulated other comprehensive income 91 — 225 103 — 419 Net change 4,193 (2) 209 73 71 4,544 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, December 31, 2019 1,552 (180) (298) (2,223) (162) (1,311) Net unrealized gains (losses) arising during the period 1,747 (24) 8 (384) 50 1,397 Amounts reclassified from accumulated other comprehensive income (260) — 165 203 — 108 Net change 1,487 (24) 173 (181) 50 1,505 Less: Other comprehensive income from noncontrolling interests — — — — — — Balance, December 31, 2020 3,039 (204) (125) (2,404) (112) 194 Net unrealized gains (losses) arising during the period (2,311) 61 (9) 150 (29) (2,138) Amounts reclassified from accumulated other comprehensive income (64) — 107 199 (1) 241 Net change (2,375) 61 98 349 (30) (1,897) Less: Other comprehensive loss from noncontrolling interests (1) — — — — (1) Balance, December 31, 2021 665 (143) (27) (2,055) (142) (1,702) (1) Substantially all of the amounts for fair value hedges are foreign exchange contracts. (2) Majority of the amounts for cash flow hedges are interest rate contracts. (3) The transition adjustment relates to our adoption of ASU 2017-08-Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities in first quarter 2019.

Operating Segments (Tables)

Operating Segments (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Operating Segments	Table 26.1 presents our results by operating segment. Table 26.1: Operating Segments (in millions) Consumer Banking and Lending Commercial Banking Corporate and Investment Banking Wealth and Investment Management Corporate Reconciling Items (1) Consolidated Year ended December 31, 2021 Net interest income (2) $ 22,807 4,960 7,410 2,570 (1,541) (427) 35,779 Noninterest income 12,070 3,589 6,429 11,776 10,036 (1,187) 42,713 Total revenue 34,877 8,549 13,839 14,346 8,495 (1,614) 78,492 Provision for credit losses (1,178) (1,500) (1,439) (95) 57 — (4,155) Noninterest expense 24,648 5,862 7,200 11,734 4,387 — 53,831 Income (loss) before income tax expense (benefit) 11,407 4,187 8,078 2,707 4,051 (1,614) 28,816 Income tax expense (benefit) 2,852 1,045 2,019 680 596 (1,614) 5,578 Net income before noncontrolling interests 8,555 3,142 6,059 2,027 3,455 — 23,238 Less: Net income (loss) from noncontrolling interests — 8 (3) — 1,685 — 1,690 Net income $ 8,555 3,134 6,062 2,027 1,770 — 21,548 Year ended December 31, 2020 Net interest income (2) $ 23,378 6,134 7,509 2,988 441 (494) 39,956 Noninterest income 10,638 3,041 6,419 10,225 4,916 (931) 34,308 Total revenue 34,016 9,175 13,928 13,213 5,357 (1,425) 74,264 Provision for credit losses 5,662 3,744 4,946 249 (472) — 14,129 Noninterest expense 26,976 6,323 7,703 10,912 5,716 — 57,630 Income (loss) before income tax expense (benefit) 1,378 (892) 1,279 2,052 113 (1,425) 2,505 Income tax expense (benefit) 302 (208) 330 514 (670) (1,425) (1,157) Net income (loss) before noncontrolling interests 1,076 (684) 949 1,538 783 — 3,662 Less: Net income (loss) from noncontrolling interests — 5 (1) — 281 — 285 Net income (loss) $ 1,076 (689) 950 1,538 502 — 3,377 Year ended December 31, 2019 Net interest income (2) $ 25,786 7,981 8,008 3,906 2,246 (624) 47,303 Noninterest income 12,105 3,721 6,442 10,506 7,550 (795) 39,529 Total revenue 37,891 11,702 14,450 14,412 9,796 (1,419) 86,832 Provision for credit losses 2,184 190 173 2 138 — 2,687 Noninterest expense 26,998 6,598 7,432 12,167 4,983 — 58,178 Income (loss) before income tax expense (benefit) 8,709 4,914 6,845 2,243 4,675 (1,419) 25,967 Income tax expense (benefit) 2,814 1,246 1,658 562 900 (1,419) 5,761 Net income before noncontrolling interests 5,895 3,668 5,187 1,681 3,775 — 20,206 Less: Net income (loss) from noncontrolling interests — 6 (1) — 486 — 491 Net income $ 5,895 3,662 5,188 1,681 3,289 — 19,715 Year ended December 31, 2021 Loans (average) $ 333,885 181,237 257,036 82,364 9,766 — 864,288 Assets (average) 388,208 198,761 523,344 88,503 743,089 — 1,941,905 Deposits (average) 834,739 197,269 189,176 176,562 40,066 — 1,437,812 Loans (period-end) 326,574 190,348 284,374 84,101 9,997 — 895,394 Assets (period-end) 378,620 210,810 546,549 90,754 721,335 — 1,948,068 Deposits (period-end) 883,674 205,428 168,609 192,548 32,220 — 1,482,479 Year ended December 31, 2020 Loans (average) $ 376,463 211,436 255,324 78,775 19,790 — 941,788 Assets (average) 432,042 226,961 521,514 85,942 675,250 — 1,941,709 Deposits (average) 722,085 178,946 234,332 162,476 78,172 — 1,376,011 Loans (period-end) 362,796 188,977 244,456 80,785 10,623 — 887,637 Assets (period-end) 420,995 206,953 508,518 87,778 728,667 — 1,952,911 Deposits (period-end) 784,565 188,292 203,004 175,483 53,037 — 1,404,381 (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.

Parent-Only Financial Stateme_2

Parent-Only Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Parent-Only Statement of Income	The following tables present Parent-only condensed financial statements. Table 27.1: Parent-Only Statement of Income Year ended December 31, (in millions) 2021 2020 2019 Income Dividends from subsidiaries (1) $ 17,895 42,578 21,930 Interest income from subsidiaries 3,934 1,295 3,356 Other interest income 1 3 43 Other income (418) (231) (162) Total income 21,412 43,645 25,167 Expense Interest expense: Indebtedness to nonbank subsidiaries 89 155 664 Long-term debt 2,823 3,591 4,931 Other — — 2 Noninterest expense 309 794 1,327 Total expense 3,221 4,540 6,924 Income before income tax benefit and equity in undistributed income of subsidiaries 18,191 39,105 18,243 Income tax benefit (819) (1,694) (945) Equity in undistributed income of subsidiaries (2) 2,538 (37,422) 527 Net income (2) $ 21,548 3,377 19,715 (1) Includes dividends paid from indirect bank subsidiaries of $15.2 billion, $1.8 billion and $21.8 billion in 2021, 2020 and 2019, respectively. (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).
Parent-Only Statement of Comprehensive Income	Table 27.2: Parent-Only Statement of Comprehensive Income Year ended December 31, (in millions) 2021 2020 2019 Net income (1) $ 21,548 3,377 19,715 Other comprehensive income (loss), net of tax: Debt securities 5 (10) (45) Derivatives and hedging activities 49 (2) (12) Defined benefit plans adjustments 347 (178) 75 Equity in other comprehensive income (loss) of subsidiaries (2,297) 1,695 4,526 Other comprehensive income, net of tax: (1,896) 1,505 4,544 Total comprehensive income (1) $ 19,652 4,882 24,259 (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).
Parent-Only Balance Sheet	Table 27.3: Parent-Only Balance Sheet (in millions) Dec 31, Dec 31, Assets Cash, cash equivalents, and restricted cash due from subsidiary banks $ 15,134 14,817 Loans to nonbank subsidiaries 185,050 185,046 Investments in subsidiaries (1) (2) 172,926 172,637 Equity securities 140 144 Other assets 7,341 5,857 Total assets $ 380,591 378,501 Liabilities and equity Accrued expenses and other liabilities $ 7,333 8,249 Long-term debt 146,082 181,956 Indebtedness to nonbank subsidiaries 39,570 3,616 Total liabilities 192,985 193,821 Stockholders’ equity (1) 187,606 184,680 Total liabilities and equity $ 380,591 378,501 (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).
Parent-Only Statement of Cash Flows	Table 27.4: Parent-Only Statement of Cash Flows Year ended December 31, (in millions) 2021 2020 2019 Cash flows from operating activities: Net cash provided by operating activities $ 11,938 50,193 27,601 Cash flows from investing activities: Equity securities, not held for trading: Proceeds from sales and capital returns 11 2,333 326 Purchases (18) (1,479) (1,052) Loans: Net repayments from (advances to) subsidiaries — 10 (3) Capital notes and term loans made to subsidiaries (3,500) (38,547) (5,286) Principal collected on notes/loans made to subsidiaries 2,618 558 1,703 Net decrease (increase) in investment in subsidiaries — 425 (384) Other, net 14 16 22 Net cash used by investing activities (875) (36,684) (4,674) Cash flows from financing activities: Net increase (decrease) in short-term borrowings and indebtedness to subsidiaries 35,958 (22,613) (636) Long-term debt: Proceeds from issuance 1,001 34,918 20,369 Repayment (28,331) (15,803) (8,143) Preferred stock: Proceeds from issuance 5,756 3,116 — Redeemed (6,675) (3,602) (1,550) Cash dividends paid (1,205) (1,290) (1,391) Common stock: Repurchased (14,464) (3,415) (24,533) Cash dividends paid (2,422) (4,852) (8,198) Other, net (1) (364) (100) (197) Net cash used by financing activities (10,746) (13,641) (24,279) Net change in cash, cash equivalents, and restricted cash 317 (132) (1,352) Cash, cash equivalents, and restricted cash at beginning of year 14,817 14,949 16,301 Cash, cash equivalents, and restricted cash at end of year $ 15,134 14,817 14,949 (1) Prior period balances have been revised to conform with the current period presentation.

Regulatory Capital Requiremen_2

Regulatory Capital Requirements and Other Restrictions (Tables)	12 Months Ended
	Dec. 31, 2021
Regulatory Capital Requirements and Other Restrictions [Abstract]
Regulatory Capital Information	Table 28.1 presents regulatory capital information for Wells Fargo & Company and the Bank in accordance with Basel III capital requirements. We must calculate our risk-based capital ratios under both the Standardized and Advanced Approaches. 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 remained in accordance with transition requirements at December 31, 2021, but became fully phased-in beginning January 1, 2022. 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 December 31, 2021, the Bank and our other insured depository institutions were considered well-capitalized under the requirements of the Federal Deposit Insurance Act. Table 28.1: Regulatory Capital Information (1) Wells Fargo & Company Wells Fargo Bank, N.A. Standardized Approach Advanced Approach Standardized Approach Advanced Approach (in millions, except ratios) December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 Regulatory capital: Common Equity Tier 1 $ 140,643 138,297 140,643 138,297 149,318 150,168 149,318 150,168 Tier 1 159,671 158,196 159,671 158,196 149,318 150,168 149,318 150,168 Total 196,308 196,660 186,580 186,934 173,044 173,719 163,213 164,412 Assets: Risk-weighted assets 1,239,026 1,193,744 1,116,068 1,158,355 1,137,839 1,085,599 965,511 1,012,751 Adjusted average assets 1,915,585 1,900,258 1,915,585 1,900,258 1,758,479 1,735,406 1,758,479 1,735,406 Regulatory capital ratios: Common Equity Tier 1 capital 11.35 % * 11.59 12.60 11.94 13.12 * 13.83 15.47 14.83 Tier 1 capital 12.89 * 13.25 14.31 13.66 13.12 * 13.83 15.47 14.83 Total capital 15.84 * 16.47 16.72 16.14 15.21 * 16.00 16.90 16.23 Required minimum capital ratios: Common Equity Tier 1 capital 9.60 9.00 9.00 9.00 7.00 7.00 7.00 7.00 Tier 1 capital 11.10 10.50 10.50 10.50 8.50 8.50 8.50 8.50 Total capital 13.10 12.50 12.50 12.50 10.50 10.50 10.50 10.50 Wells Fargo & Company Wells Fargo Bank, N.A. December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 Regulatory leverage: Total leverage exposure (2) $ 2,316,079 1,963,971 2,133,798 2,041,952 Supplementary leverage ratio (SLR) (2) 6.89 % 8.05 7.00 7.35 Tier 1 leverage ratio (3) 8.34 8.32 8.49 8.65 Required minimum leverage: Supplementary leverage ratio 5.00 5.00 6.00 6.00 Tier 1 leverage ratio 4.00 4.00 4.00 4.00 * Denotes the binding ratio under the Standardized and Advanced Approaches at December 31, 2021. (1) At December 31, 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 $241 million, reflecting a $991 million (post-tax) increase in capital recognized upon our initial adoption of CECL, offset by 25% of the $4.9 billion increase in our ACL under CECL from January 1, 2020, through December 31, 2021. The impact of the CECL transition provision on the regulatory capital of the Bank at December 31, 2021, was an increase in capital of $463 million. (2) 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. (3) 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.
Nature of Restrictions on Cash and Cash Equivalents	Table 28.2 provides a summary of restrictions on cash and cash equivalents . Table 28.2: Nature of Restrictions on Cash and Cash Equivalents (in millions) Dec 31, Dec 31, Reserve balance for non-U.S. central banks $ 382 243 Segregated for benefit of brokerage customers under federal and other brokerage regulations 830 957

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Impact Of Accounting Policy Changes [Abstract]
Interest income - loans	$ 28,634	$ 34,230	[1]	$ 44,218	[1]
Noninterest income	42,713	34,308		39,529
Income tax expense (benefit)	5,578	(1,157)	[1]	5,761	[1]
Net income (loss)	$ 21,548	$ 3,377	[1]	$ 19,715	[1]
Earnings per common share (in dollars per share)	$ 4.99	$ 0.43	[1]	$ 4.12	[1]
Diluted earnings per common share (in dollars per share)	$ 4.95	$ 0.43	[1]	$ 4.09	[1]
Equity securities	$ 72,886	$ 60,008
Accrued expenses and other liabilities	70,957	74,360
Retained earnings	$ 180,322	162,683
Direct Financing Lease [Abstract]
Direct financing lease, risk strategy, residual asset	Our allowance for loan losses for financing leases considers both the collectability of the lease payments receivable as well as the estimated residual value of the leased asset. We typically purchase residual value insurance on our financing leases so that our risk of loss at lease termination will be less than 10% of the initial value of the lease. In addition, we have several channels for re-leasing or marketing those assets.
Supplemental cash flow information - Noncash activities
Available-for-sale debt securities purchased from securitization of LHFS	$ 3,096	21,768		$ 0
Held-to-maturity debt securities purchased from securitization of LHFS	20,265	9,912		289
Transfers from loans to LHFS	19,297	19,975		6,453
Transfers from available-for-sale debt securities to held-to-maturity debt securities	55,993	31,815		13,833
Operating lease ROU assets acquired with operating lease liabilities	530	658		5,804
Operating lease ROU assets (lessee)	3,805	4,306
Accounting Standards Update 2016-02 [Member]
Supplemental cash flow information - Noncash activities
Operating lease ROU assets (lessee)				4,900
Low-income housing tax credit investments [Member]
Impact Of Accounting Policy Changes [Abstract]
Income tax expense (benefit)	$ (238)	(232)		(214)
Previously reported [Member] | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]
Impact Of Accounting Policy Changes [Abstract]
Interest income - loans		34,109		44,146
Noninterest income		32,505		37,832
Income tax expense (benefit)		(3,005)		4,157
Net income (loss)		$ 3,301		$ 19,549
Earnings per common share (in dollars per share)		$ 0.42		$ 4.08
Diluted earnings per common share (in dollars per share)		$ 0.41		$ 4.05
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]
Impact Of Accounting Policy Changes [Abstract]
Interest income - loans		0		$ 0
Noninterest income		1,507		1,486
Income tax expense (benefit)		1,431		1,321
Net income (loss)		$ 76		$ 166
Earnings per common share (in dollars per share)		$ 0.01		$ 0.04
Diluted earnings per common share (in dollars per share)		$ 0.02		$ 0.04
Equity securities		$ (275)
Accrued expenses and other liabilities		(67)
Retained earnings		(207)				$ 448
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]
Impact Of Accounting Policy Changes [Abstract]
Interest income - loans		121		$ 72
Noninterest income		296		211
Income tax expense (benefit)		417		283
Net income (loss)		$ 0		$ 0
Earnings per common share (in dollars per share)		$ 0		$ 0
Diluted earnings per common share (in dollars per share)		$ 0		$ 0
Equity securities		$ (1,977)
Accrued expenses and other liabilities		(1,977)
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).

Trading Assets and Liabilities

Trading Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Trading Assets and Liabilities [Line Items]
Trading debt securities	$ 88,265	$ 75,095
Equity securities, carried at fair value	39,098	34,009
Loans held for sale	23,617	36,384
Gross derivative asset	45,876	54,559
Derivative assets	21,478	25,846
Total trading assets	139,162	123,608
Short sale	20,685	22,441
Gross trading derivative liabilities	41,238	50,082
Derivative liabilities	9,424	16,509
Total trading liabilities	29,156	36,282
Held for trading [Member]
Trading Assets and Liabilities [Line Items]
Equity securities, carried at fair value	27,476	23,032
Loans held for sale	3,242	1,015
Gross derivative asset	48,325	58,767
Netting	(28,146)	(34,301)
Derivative assets	20,179	24,466
Short sale	20,685	22,441
Gross trading derivative liabilities	42,449	53,285
Netting	(33,978)	(39,444)
Derivative liabilities	$ 8,471	$ 13,841

Trading Activities Net Interest

Trading Activities Net Interest Income and Net Gains (Losses) on Trading Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Debt securities, interest income	$ 2,086	$ 2,530	$ 3,130
Equity securities, interest income	608	554	962
Total interest income	39,694	47,919	66,155
Less: Interest expense	405	442	525
Net interest Income	35,779	39,956	47,303
Debt securities, net gains (losses)	(1,796)	2,697	1,053
Equity securities, net gains (losses)	4,491	(630)	4,795
Loans held for sale, net gains (losses)	54	28	12
Derivatives	(2,465)	(923)	(4,867)
Total net gains from trading activities	284	1,172	993
Total trading-related net interest and noninterest income	2,446	3,656	4,255
Held for trading [Member]
Net Interest Income and Net Gains (Losses) on Trading Activities [Line Items]
Equity securities, interest income	441	366	579
Loans held for sale, interest income	40	30	78
Total interest income	2,567	2,926	3,787
Net interest Income	$ 2,162	$ 2,484	$ 3,262

AFS and HTM Debt Securities, Ou

AFS and HTM Debt Securities, Outstanding (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	$ 175,463	$ 215,533
Available-for-sale, gross unrealized gains	2,635	5,122
Available-for-sale, gross unrealized losses	(854)	(263)
Available-for-sale, at fair value	177,244	220,392
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	272,022	205,720
Held-to-maturity, gross unrealized gains	3,570	6,791
Held-to-maturity, gross unrealized losses	(3,206)	(204)
Held-to-maturity, at fair value	272,386	212,307
Total AFS and HTM Debt securities:
Amortized cost, net	447,485	421,253
Debt securities, gross unrealized gains	6,205	11,913
Debt securities, gross unrealized losses	(4,060)	(467)
Fair value	449,630	432,699
Allowance for credit loss, available-for-sale debt securities	8	28
Allowance for credit loss, held-to-maturity debt securities	96	41
Securities of U.S. Treasury and federal agencies [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	39,668	21,954
Available-for-sale, gross unrealized gains	185	205
Available-for-sale, gross unrealized losses	(192)	0
Available-for-sale, at fair value	39,661	22,159
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	16,544	47,295
Held-to-maturity, gross unrealized gains	599	1,472
Held-to-maturity, gross unrealized losses	(318)	(170)
Held-to-maturity, at fair value	16,825	48,597
Non-U.S. government securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	71	16,816
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	0	(3)
Available-for-sale, at fair value	71	16,813
Securities of U.S. states and political subdivisions [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	16,618	19,263
Available-for-sale, gross unrealized gains	350	224
Available-for-sale, gross unrealized losses	(51)	(81)
Available-for-sale, at fair value	16,917	19,406
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	32,689	25,860
Held-to-maturity, gross unrealized gains	847	938
Held-to-maturity, gross unrealized losses	(61)	(5)
Held-to-maturity, at fair value	33,475	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	104,661	134,838
Available-for-sale, gross unrealized gains	1,807	4,260
Available-for-sale, gross unrealized losses	(582)	(28)
Available-for-sale, at fair value	105,886	139,070
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	188,909	115,437
Held-to-maturity, gross unrealized gains	1,882	4,182
Held-to-maturity, gross unrealized losses	(2,807)	(21)
Held-to-maturity, at fair value	187,984	119,598
Non-agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	4,515	3,745
Available-for-sale, gross unrealized gains	32	30
Available-for-sale, gross unrealized losses	(15)	(46)
Available-for-sale, at fair value	4,532	3,729
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	1,082	890
Held-to-maturity, gross unrealized gains	31	51
Held-to-maturity, gross unrealized losses	(18)	(8)
Held-to-maturity, at fair value	1,095	933
Collateralized loan obligations [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	5,713	9,058
Available-for-sale, gross unrealized gains	2	4
Available-for-sale, gross unrealized losses	(7)	(44)
Available-for-sale, at fair value	5,708	9,018
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	31,067	16,238
Held-to-maturity, gross unrealized gains	194	148
Held-to-maturity, gross unrealized losses	(2)	0
Held-to-maturity, at fair value	31,259	16,386
Other debt securities [Member]
Available-for-sale debt securities:
Available-for-sale, at amortized cost, net	4,217	9,859
Available-for-sale, gross unrealized gains	259	399
Available-for-sale, gross unrealized losses	(7)	(61)
Available-for-sale, at fair value	4,469	$ 10,197
Held-to-maturity debt securities:
Held-to-maturity, amortized cost, net	1,731
Held-to-maturity, gross unrealized gains	17
Held-to-maturity, gross unrealized losses	0
Held-to-maturity, at fair value	$ 1,748

AFS and HTM Debt Securities, HT

AFS and HTM Debt Securities, HTM Debt Securities Purchases and Transfers (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	$ 90,822	$ 57,056	$ 9,238
Transfers from available-for-sale debt securities to held-to-maturity debt securities	55,993	31,815	13,833
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	3,016	757
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	5,198	1,906	1,583
Transfers from available-for-sale debt securities to held-to-maturity debt securities	2,954	10,721	5,912
Federal agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	76,010	51,320	6,610
Transfers from available-for-sale debt securities to held-to-maturity debt securities	41,298	5,522	7,921
Non-agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	235	126	288
Collateralized loan obligations [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Purchases of held-to-maturity debt securities	9,379	688	0
Transfers from available-for-sale debt securities to held-to-maturity debt securities	10,003	15,572	0
Other debt securities [Member]
Debt Securities, Held-to-maturity Purchase or Transfer of Investment [Abstract]
Transfers from available-for-sale debt securities to held-to-maturity debt securities	$ 1,738	$ 0	$ 0

AFS and HTM Debt Securities, In

AFS and HTM Debt Securities, Income Statement Impacts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Available For Sale and Held To Maturity Debt Securities Income Statement Impacts [Abstract]
Interest Income, Available-for-sale	$ 2,808	$ 4,992	$ 8,092
Interest Income, Held-to-maturity	4,359	3,712	3,733
Total interest income	7,167	8,704	11,825
Provision for credit losses, Available-for-sale	(2)	89	0
Provision for credit losses, Held-to-maturity	54	35	0
Total provision for credit losses	52	124	0
Debt securities, held-to-maturity, sold, realized gain (Loss)	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	571	931	227
Available-for-sale securities, Gross realized losses	(10)	(43)	(24)
Impairment write-downs	(8)	(15)	(63)
Net realized gains	$ 553	$ 873	$ 140

AFS and HTM Debt Securities, _2

AFS and HTM Debt Securities, Investment Grade Debt Securities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Available For Sale And Held To Maturity Debt Securities Credit Ratings [Abstract]
Available-for-sale, at fair value	$ 177,244	$ 220,392
Available-for-sale, percent of investment grade	99.00%	99.00%
Held-to-maturity, amortized cost	$ 272,118	$ 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	98.00%	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	$ 145,547	$ 161,229
Available-for-sale, percent of investment grade	100.00%	100.00%
Held-to-maturity, amortized cost	$ 205,453	$ 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	$ 16,917	$ 19,406
Available-for-sale, percent of investment grade	99.00%	99.00%
Held-to-maturity, amortized cost	$ 32,704	$ 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	$ 5,708	$ 9,018
Available-for-sale, percent of investment grade	100.00%	100.00%
Held-to-maturity, amortized cost	$ 31,128	$ 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	100.00%	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	$ 9,072	$ 30,739
Available-for-sale, percent of investment grade	88.00%	93.00%
Held-to-maturity, amortized cost	$ 2,833	$ 904
Held-to-maturity, percent of investment grade	64.00%	6.00%

AFS and HTM Debt Securities, Gr

AFS and HTM Debt Securities, Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	$ (569)	$ (152)
Less than 12 months, Fair value, available-for-sale	71,006	38,898
12 months or more, Gross unrealized losses, available-for-sale	(285)	(111)
12 months or more, Fair value, available-for-sale	12,405	5,353
Total, Gross unrealized losses, available-for-sale	(854)	(263)
Total fair value, available for sale	83,411	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	(192)	0
Less than 12 months, Fair value, available-for-sale	24,418	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	(192)	0
Total fair value, available for sale	24,418	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	(36)	(51)
Less than 12 months, Fair value, available-for-sale	2,308	3,681
12 months or more, Gross unrealized losses, available-for-sale	(15)	(30)
12 months or more, Fair value, available-for-sale	532	1,101
Total, Gross unrealized losses, available-for-sale	(51)	(81)
Total fair value, available for sale	2,840	4,782
Federal agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(334)	(27)
Less than 12 months, Fair value, available-for-sale	40,695	11,310
12 months or more, Gross unrealized losses, available-for-sale	(248)	(1)
12 months or more, Fair value, available-for-sale	9,464	316
Total, Gross unrealized losses, available-for-sale	(582)	(28)
Total fair value, available for sale	50,159	11,626
Non-agency mortgage-backed securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(4)	(28)
Less than 12 months, Fair value, available-for-sale	1,966	1,366
12 months or more, Gross unrealized losses, available-for-sale	(11)	(18)
12 months or more, Fair value, available-for-sale	543	534
Total, Gross unrealized losses, available-for-sale	(15)	(46)
Total fair value, available for sale	2,509	1,900
Collateralized loan obligations [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	(3)	(27)
Less than 12 months, Fair value, available-for-sale	1,619	5,082
12 months or more, Gross unrealized losses, available-for-sale	(4)	(17)
12 months or more, Fair value, available-for-sale	1,242	1,798
Total, Gross unrealized losses, available-for-sale	(7)	(44)
Total fair value, available for sale	2,861	6,880
Other debt securities [Member]
Available-for-sale debt securities:
Less than 12 months, Gross unrealized losses, available-for-sale	0	(16)
Less than 12 months, Fair value, available-for-sale	0	647
12 months or more, Gross unrealized losses, available-for-sale	(7)	(45)
12 months or more, Fair value, available-for-sale	624	1,604
Total, Gross unrealized losses, available-for-sale	(7)	(61)
Total fair value, available for sale	$ 624	$ 2,251

AFS Debt Securities, Contractua

AFS Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 175,463	$ 215,533
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	798
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	21,631
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	33,676
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	119,358
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	177,244	220,392
Available-for-sale, fair value, remaining contractual maturity, due within one year	798
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	21,612
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	33,637
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 121,197
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	1.26%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	0.46%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.34%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.47%
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	$ 39,668	21,954
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	18,787
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	18,874
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	2,007
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	39,661	22,159
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	18,739
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	18,768
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 2,154
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	0.79%
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	0.34%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.16%
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	$ 71	16,816
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	3
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	68
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	71	16,813
Available-for-sale, fair value, remaining contractual maturity, due within one year	3
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	68
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	0.33%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	1.49%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	0.28%
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	$ 16,618	19,263
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	696
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	2,115
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	5,719
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	8,088
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	16,917	19,406
Available-for-sale, fair value, remaining contractual maturity, due within one year	697
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	2,135
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	5,713
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 8,372
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	1.92%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	1.22%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	1.10%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.38%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	2.58%
Federal agency mortgage-backed securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 104,661	134,838
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	1
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	219
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	2,665
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	101,776
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	105,886	139,070
Available-for-sale, fair value, remaining contractual maturity, due within one year	1
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	228
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	2,742
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 102,915
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	2.53%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	2.40%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	3.17%
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	2.53%
Non-agency mortgage-backed securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 4,515	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	143
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	4,372
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	4,532	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	142
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 4,390
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	1.93%
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	2.32%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	1.92%
Collateralized loan obligations [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 5,713	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	23
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	5,212
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	478
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	5,708	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	23
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	5,207
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 478
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	2.22%
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	1.45%
Other debt securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Available-for-sale, at amortized cost, net	$ 4,217	9,859
Available-for-sale, amortized cost, net, remaining contractual maturity, due within one year	98
Available-for-sale, amortized cost, net, remaining contractual maturity, due after one year through five years	419
Available-for-sale, amortized cost, net, remaining contractual maturity, due after five years through ten years	1,063
Available-for-sale, amortized cost, net, remaining contractual maturity, due after ten years	2,637
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale, fair value	4,469	$ 10,197
Available-for-sale, fair value, remaining contractual maturity, due within one year	97
Available-for-sale, fair value, remaining contractual maturity, due after one year through five years	419
Available-for-sale, fair value, remaining contractual maturity, due after five years through ten years	1,065
Available-for-sale, fair value, remaining contractual maturity, due after ten years	$ 2,888
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract]
Available-for-sale, weighted average yield	1.61%
Available-for-sale, weighted average yield, remaining contractual maturity, due within one year	1.56%
Available-for-sale, weighted average yield, remaining contractual maturity, due after one year through five years	1.27%
Available-for-sale, weighted average yield, remaining contractual maturity, due after five years through ten years	1.46%
Available-for-sale, weighted average yield, remaining contractual maturity, due after ten years	1.72%

HTM Debt Securities, Contractua

HTM Debt Securities, Contractual Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 272,022	$ 205,720
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	1,703
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	16,430
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	16,141
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	237,748
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	272,386	212,307
Held-to-maturity, fair value, remaining contractual maturity, due within one year	1,715
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	16,976
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	16,355
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 237,340
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.09%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	2.17%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.24%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	1.92%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.09%
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	$ 16,544	47,295
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	350
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	12,410
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	3,784
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	16,825	48,597
Held-to-maturity, fair value, remaining contractual maturity, due within one year	350
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	12,889
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	$ 3,586
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.17%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	1.55%
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	$ 32,689	25,860
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	1,338
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	3,243
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	2,126
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	25,982
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	33,475	26,793
Held-to-maturity, fair value, remaining contractual maturity, due within one year	1,350
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	3,307
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	2,191
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 26,627
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	2.34%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	1.31%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	2.59%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	2.15%
Federal agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 188,909	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	188,909
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	187,984	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	$ 187,984
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	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	2.15%
Non-agency mortgage-backed securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 1,082	890
Held-to-maturity, amortized cost, net, remaining contractual maturity, due within one year	15
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after one year through five years	13
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	29
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	1,025
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	1,095	933
Held-to-maturity, fair value, remaining contractual maturity, due within one year	15
Held-to-maturity, fair value, remaining contractual maturity, due after one year through five years	13
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	30
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 1,037
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	2.99%
Held-to-maturity, weighted average yield, remaining contractual maturity, due within one year	1.55%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after one year through five years	2.90%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	3.16%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	3.00%
Collateralized loan obligations [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 31,067	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	13,019
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	18,048
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	31,259	$ 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	13,153
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 18,106
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	1.53%
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	1.60%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	1.48%
Other debt securities [Member]
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Held-to-maturity, amortized cost, net	$ 1,731
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	764
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after five years through ten years	967
Held-to-maturity, amortized cost, net, remaining contractual maturity, due after ten years	0
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Held-to-maturity, fair value	1,748
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	767
Held-to-maturity, fair value, remaining contractual maturity, due after five years through ten years	981
Held-to-maturity, fair value, remaining contractual maturity, due after ten years	$ 0
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract]
Held-to-maturity weighted average yield	4.51%
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	4.13%
Held-to-maturity, weighted average yield, remaining contractual maturity, due after five years through ten years	4.81%
Held-to-maturity, weighed average yield, remaining contractual maturity, due after ten years	0.00%

Loans and Related Allowance f_3

Loans and Related Allowance for Credit Losses, Loans Outstanding (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 895,394	$ 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	$ 513,120	$ 478,417
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Financing receivable, accrued interest, writeoff	44	43
Total Commercial [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	86,697	72,638
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	350,436	318,805
Commercial and industrial loans [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	77,365	63,128
Real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	127,733	121,720
Real estate mortgage [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7,070	7,278
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	20,092	21,805
Real estate construction [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,582	1,603
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	14,859	16,087
Lease financing [Member] | Non-U.S. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	680	629
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	382,274	409,220
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Financing receivable, accrued interest, writeoff	175	195
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	258,888	299,960
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	242,270	276,674
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	16,618	23,286
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	38,453	36,664
Auto [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	56,659	48,187
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 28,274	$ 24,409

Loans and Related Allowance f_4

Loans and Related Allowance for Credit Losses, Loan Concentrations (Details) - Loans [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commercial and industrial loans and leases [Member] | Product concentration risk [Member] | Financial institutions except banks [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Concentration risk, percentage	16.00%	13.00%
Commercial real estate [Member] | Product concentration risk [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Concentration risk, financing receivable amount	$ 0	$ 0
Commercial real estate [Member] | Product concentration risk [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Concentration risk, percentage	10.00%	10.00%
Residential mortgage [Member] | Geographic concentration risk [Member] | California [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Concentration risk, percentage	12.00%	12.00%
Residential mortgage [Member] | Geographic concentration risk [Member] | Maximum [Member] | California, larger metropolitan areas [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Concentration risk, percentage	4.00%	4.00%
Residential mortgage [Member] | Interest-only loans [Member] | Product concentration risk [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Concentration risk, percentage	3.00%	3.00%

Loans and Related Allowance f_5

Loans and Related Allowance for Credit Losses, Significant Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	$ 386	$ 1,316
Sales	(2,722)	(4,255)
Transfers (to)/from LHFS	(1,605)	(12,492)
Total Commercial [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	380	1,310
Sales	(2,534)	(4,141)
Transfers (to)/from LHFS	(1,550)	(1,294)
Total Consumer [Member]
Loans and Allowance for Credit Losses, Significant Activity [Abstract]
Purchases	6	6
Sales	(188)	(114)
Transfers (to)/from LHFS	$ (55)	$ (11,198)

Loans and Related Allowance f_6

Loans and Related Allowance for Credit Losses, Commitments to Lend (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, temporary advance arrangements	$ 90,200
Unfunded credit commitments	686,721	$ 636,435
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	435,750	401,810
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	404,292	378,167
Real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	11,515	7,993
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	19,943	15,650
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	250,971	234,625
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	32,992	31,530
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	27,447	32,820
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	130,743	121,096
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded credit commitments	59,789	49,179
International [Member] | Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Letters of credit outstanding, amount	$ 1,500	$ 1,300

Loans and Related Allowance f_7

Loans and Related Allowance for Credit Losses, Allowance for Credit Losses for Loans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, allowance for credit loss, period increase (decrease)	$ (5,900)
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	19,713	$ 10,456
Provision for credit losses, loans	(4,207)	14,005
Interest income on certain impaired loans	(145)	(153)
Loan charge-offs	(3,031)	(4,525)
Loan recoveries	1,457	1,236
Net loan charge-offs	(1,574)	(3,289)
Other	1	23
Allowance for credit losses, ending balance	13,788	19,713
Allowance for loan losses	$ 12,490	$ 18,516
Net loan charge-offs (annualized) as a percentage of average total loans	0.18%	0.35%
Allowance for loan losses as a percentage of total loans	1.39%	2.09%
Allowance for credit losses for loans as a percentage of total loans	1.54%	2.22%
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	$ (1,337)
Allowance for credit losses, ending balance		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	8
Allowance for credit losses, ending balance		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	19,713	9,127
Allowance for credit losses, ending balance		19,713
Allowance for loan losses [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses	12,490	18,516
Allowance for unfunded credit commitments [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	1,197
Allowance for credit losses, ending balance	1,298	1,197
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	11,516	6,245
Provision for credit losses, loans	(3,373)	9,770
Interest income on certain impaired loans	(58)	(61)
Loan charge-offs	(662)	(1,849)
Loan recoveries	367	259
Net loan charge-offs	(295)	(1,590)
Other	1	13
Allowance for credit losses, ending balance	7,791	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)
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		11,516
Commercial and industrial loans [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(517)	(1,440)
Loan recoveries	299	201
Real estate mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(98)	(302)
Loan recoveries	45	19
Real estate construction [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(1)	0
Loan recoveries	1	19
Lease financing [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(46)	(107)
Loan recoveries	22	20
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	8,197	4,211
Provision for credit losses, loans	(834)	4,235
Interest income on certain impaired loans	(87)	(92)
Loan charge-offs	(2,369)	(2,676)
Loan recoveries	1,090	977
Net loan charge-offs	(1,279)	(1,699)
Other	0	10
Allowance for credit losses, ending balance	5,997	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
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		8,197
Residential mortgage - first lien [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(167)	(90)
Loan recoveries	114	95
Residential mortgage - junior lien [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(93)	(88)
Loan recoveries	163	143
Credit card [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(1,189)	(1,504)
Loan recoveries	389	365
Auto [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(497)	(536)
Loan recoveries	316	266
Other consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan charge-offs	(423)	(458)
Loan recoveries	$ 108	$ 108

Loans and Related Allowance f_8

Loans and Related Allowance for Credit Losses, Allowance for Credit Losses for Loans Activity by Portfolio Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 19,713	$ 10,456
Provision for credit losses, loans	(4,207)	14,005
Interest income on certain impaired loans	(145)	(153)
Loan charge-offs	(3,031)	(4,525)
Loan recoveries	1,457	1,236
Net loan charge-offs	(1,574)	(3,289)
Other	1	23
Allowance for credit losses, ending balance	13,788	19,713
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	(1,337)
Allowance for credit losses, ending balance		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	8
Allowance for credit losses, ending balance		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	19,713	9,127
Allowance for credit losses, ending balance		19,713
Total Commercial [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	11,516	6,245
Provision for credit losses, loans	(3,373)	9,770
Interest income on certain impaired loans	(58)	(61)
Loan charge-offs	(662)	(1,849)
Loan recoveries	367	259
Net loan charge-offs	(295)	(1,590)
Other	1	13
Allowance for credit losses, ending balance	7,791	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)
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		11,516
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	8,197	4,211
Provision for credit losses, loans	(834)	4,235
Interest income on certain impaired loans	(87)	(92)
Loan charge-offs	(2,369)	(2,676)
Loan recoveries	1,090	977
Net loan charge-offs	(1,279)	(1,699)
Other	0	10
Allowance for credit losses, ending balance	5,997	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
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		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
Allowance for credit losses, ending balance		$ 8,197

Loans and Related Allowance f_9

Loans and Related Allowance for Credit Losses, Commercial Loan Categories by Risk Categories and Vintage (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 895,394	$ 887,637
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	119,666	92,865
Term loans by origination year, fiscal year before current fiscal year	40,707	75,335
Term loans by origination year, two years before current fiscal year	51,742	45,635
Term loans by origination year, three years before current fiscal year	27,066	24,047
Term loans by origination year, four years before current fiscal year	14,179	19,824
Term loans by origination year, more than five years before current fiscal year	35,226	24,070
Revolving loans	223,833	195,484
Revolving loans converted to term loans	701	1,157
Loans	513,120	478,417
Total Commercial [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	485,400
Total Commercial [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	27,800
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	67,219	58,319
Term loans by origination year, fiscal year before current fiscal year	16,077	35,367
Term loans by origination year, two years before current fiscal year	21,790	17,293
Term loans by origination year, three years before current fiscal year	8,656	8,246
Term loans by origination year, four years before current fiscal year	4,482	4,720
Term loans by origination year, more than five years before current fiscal year	14,536	5,071
Revolving loans	216,980	188,641
Revolving loans converted to term loans	696	1,148
Loans	350,436	318,805
Commercial and industrial loans [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	65,562	56,915
Term loans by origination year, fiscal year before current fiscal year	15,193	34,040
Term loans by origination year, two years before current fiscal year	20,553	15,936
Term loans by origination year, three years before current fiscal year	7,400	7,274
Term loans by origination year, four years before current fiscal year	3,797	4,048
Term loans by origination year, more than five years before current fiscal year	13,985	4,738
Revolving loans	211,452	177,107
Revolving loans converted to term loans	679	997
Loans	338,621	301,055
Commercial and industrial loans [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	1,657	1,404
Term loans by origination year, fiscal year before current fiscal year	884	1,327
Term loans by origination year, two years before current fiscal year	1,237	1,357
Term loans by origination year, three years before current fiscal year	1,256	972
Term loans by origination year, four years before current fiscal year	685	672
Term loans by origination year, more than five years before current fiscal year	551	333
Revolving loans	5,528	11,534
Revolving loans converted to term loans	17	151
Loans	11,815	17,750
Real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	41,658	24,577
Term loans by origination year, fiscal year before current fiscal year	17,048	28,658
Term loans by origination year, two years before current fiscal year	21,988	20,496
Term loans by origination year, three years before current fiscal year	14,452	12,400
Term loans by origination year, four years before current fiscal year	8,326	13,207
Term loans by origination year, more than five years before current fiscal year	18,447	16,745
Revolving loans	5,811	5,631
Revolving loans converted to term loans	3	6
Loans	127,733	121,720
Real estate mortgage [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	38,196	22,444
Term loans by origination year, fiscal year before current fiscal year	15,929	26,114
Term loans by origination year, two years before current fiscal year	19,013	18,679
Term loans by origination year, three years before current fiscal year	12,618	11,113
Term loans by origination year, four years before current fiscal year	7,451	11,582
Term loans by origination year, more than five years before current fiscal year	16,026	14,663
Revolving loans	5,411	5,152
Revolving loans converted to term loans	3	6
Loans	114,647	109,753
Real estate mortgage [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	3,462	2,133
Term loans by origination year, fiscal year before current fiscal year	1,119	2,544
Term loans by origination year, two years before current fiscal year	2,975	1,817
Term loans by origination year, three years before current fiscal year	1,834	1,287
Term loans by origination year, four years before current fiscal year	875	1,625
Term loans by origination year, more than five years before current fiscal year	2,421	2,082
Revolving loans	400	479
Revolving loans converted to term loans	0	0
Loans	13,086	11,967
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	6,405	5,691
Term loans by origination year, fiscal year before current fiscal year	4,324	7,026
Term loans by origination year, two years before current fiscal year	5,135	5,298
Term loans by origination year, three years before current fiscal year	2,401	1,740
Term loans by origination year, four years before current fiscal year	447	590
Term loans by origination year, more than five years before current fiscal year	336	245
Revolving loans	1,042	1,212
Revolving loans converted to term loans	2	3
Loans	20,092	21,805
Real estate construction [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	5,895	5,242
Term loans by origination year, fiscal year before current fiscal year	4,058	6,574
Term loans by origination year, two years before current fiscal year	4,549	4,771
Term loans by origination year, three years before current fiscal year	2,167	1,736
Term loans by origination year, four years before current fiscal year	379	477
Term loans by origination year, more than five years before current fiscal year	329	235
Revolving loans	1,042	1,212
Revolving loans converted to term loans	2	3
Loans	18,421	20,250
Real estate construction [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	510	449
Term loans by origination year, fiscal year before current fiscal year	266	452
Term loans by origination year, two years before current fiscal year	586	527
Term loans by origination year, three years before current fiscal year	234	4
Term loans by origination year, four years before current fiscal year	68	113
Term loans by origination year, more than five years before current fiscal year	7	10
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	1,671	1,555
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	4,384	4,278
Term loans by origination year, fiscal year before current fiscal year	3,258	4,284
Term loans by origination year, two years before current fiscal year	2,829	2,548
Term loans by origination year, three years before current fiscal year	1,557	1,661
Term loans by origination year, four years before current fiscal year	924	1,307
Term loans by origination year, more than five years before current fiscal year	1,907	2,009
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	14,859	16,087
Lease financing [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	4,100	3,970
Term loans by origination year, fiscal year before current fiscal year	3,012	3,851
Term loans by origination year, two years before current fiscal year	2,547	2,176
Term loans by origination year, three years before current fiscal year	1,373	1,464
Term loans by origination year, four years before current fiscal year	838	1,199
Term loans by origination year, more than five years before current fiscal year	1,805	1,924
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	13,675	14,584
Lease financing [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	284	308
Term loans by origination year, fiscal year before current fiscal year	246	433
Term loans by origination year, two years before current fiscal year	282	372
Term loans by origination year, three years before current fiscal year	184	197
Term loans by origination year, four years before current fiscal year	86	108
Term loans by origination year, more than five years before current fiscal year	102	85
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	$ 1,184	$ 1,503

Loans and Related Allowance _10

Loans and Related Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 895,394	$ 887,637
Nonaccrual loans	7,212	8,728
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	513,120	478,417
Nonaccrual loans	2,376	4,779
Total Commercial [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	508,685	472,181
Total Commercial [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,824	1,379
Total Commercial [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	235	78
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	350,436	318,805
Nonaccrual loans	980	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	348,033	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	1,217	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	206	39
Real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	127,733	121,720
Nonaccrual loans	1,235	1,774
Real estate mortgage [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	126,184	119,561
Real estate mortgage [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	285	347
Real estate mortgage [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	29	38
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	20,092	21,805
Nonaccrual loans	13	48
Real estate construction [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	19,900	21,532
Real estate construction [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	179	224
Real estate construction [Member] | 90 days or more past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	1
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	14,859	16,087
Nonaccrual loans	148	259
Lease financing [Member] | Current-29 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	14,568	15,595
Lease financing [Member] | 30-89 days past due and still accruing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	143	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 Related Allowance _11

Loans and Related Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 895,394	$ 887,637
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	5,358	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	659	690
Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Loans, 90 days or more past due and still accruing	4,699	6,351
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	101,969	75,172
Term loans by origination year, fiscal year before current fiscal year	55,214	60,307
Term loans by origination year, two years before current fiscal year	34,661	22,816
Term loans by origination year, three years before current fiscal year	11,714	29,673
Term loans by origination year, four years before current fiscal year	15,842	35,869
Term loans by origination year, more than five years before current fiscal year	77,309	97,314
Revolving loans	78,564	79,347
Revolving loans converted to term loans	7,001	8,722
Loans	382,274	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	424	612
Total Consumer [Member] | 90 days or more past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,700	2,700
Total Consumer [Member] | 90 days or more past due [Member] | Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,700	11,100
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	70,176	53,972
Term loans by origination year, fiscal year before current fiscal year	41,794	44,077
Term loans by origination year, two years before current fiscal year	25,234	15,758
Term loans by origination year, three years before current fiscal year	8,122	25,835
Term loans by origination year, four years before current fiscal year	14,245	33,051
Term loans by origination year, more than five years before current fiscal year	76,380	96,349
Revolving loans	16,305	22,677
Revolving loans converted to term loans	6,632	8,241
Loans	258,888	299,960
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	70,148	53,950
Term loans by origination year, fiscal year before current fiscal year	41,774	44,038
Term loans by origination year, two years before current fiscal year	25,203	15,717
Term loans by origination year, three years before current fiscal year	8,095	25,796
Term loans by origination year, four years before current fiscal year	14,223	33,019
Term loans by origination year, more than five years before current fiscal year	75,618	95,160
Revolving loans	5,313	6,934
Revolving loans converted to term loans	1,896	2,060
Loans	242,270	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	37	135
Residential mortgage - first lien [Member] | Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	14	215
Term loans by origination year, fiscal year before current fiscal year	134	639
Term loans by origination year, two years before current fiscal year	209	904
Term loans by origination year, three years before current fiscal year	349	1,076
Term loans by origination year, four years before current fiscal year	364	2,367
Term loans by origination year, more than five years before current fiscal year	12,088	25,039
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	13,158	30,240
Residential mortgage - first lien [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	69,994	53,298
Term loans by origination year, fiscal year before current fiscal year	41,527	43,297
Term loans by origination year, two years before current fiscal year	24,887	14,761
Term loans by origination year, three years before current fiscal year	7,660	24,619
Term loans by origination year, four years before current fiscal year	13,734	30,533
Term loans by origination year, more than five years before current fiscal year	61,576	67,960
Revolving loans	5,248	6,762
Revolving loans converted to term loans	1,673	1,719
Loans	226,299	242,949
Residential mortgage - first lien [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	129	111
Term loans by origination year, fiscal year before current fiscal year	27	76
Term loans by origination year, two years before current fiscal year	30	36
Term loans by origination year, three years before current fiscal year	12	67
Term loans by origination year, four years before current fiscal year	24	79
Term loans by origination year, more than five years before current fiscal year	418	750
Revolving loans	14	52
Revolving loans converted to term loans	29	66
Loans	683	1,237
Residential mortgage - first lien [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	10	88
Term loans by origination year, fiscal year before current fiscal year	7	10
Term loans by origination year, two years before current fiscal year	2	6
Term loans by origination year, three years before current fiscal year	0	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	126	305
Revolving loans	7	56
Revolving loans converted to term loans	15	68
Loans	170	558
Residential mortgage - first lien [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	0	232
Term loans by origination year, fiscal year before current fiscal year	1	11
Term loans by origination year, two years before current fiscal year	1	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	5	7
Term loans by origination year, more than five years before current fiscal year	53	197
Revolving loans	4	26
Revolving loans converted to term loans	9	33
Loans	74	519
Residential mortgage - first lien [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	1	3
Term loans by origination year, fiscal year before current fiscal year	16	4
Term loans by origination year, two years before current fiscal year	2	1
Term loans by origination year, three years before current fiscal year	2	3
Term loans by origination year, four years before current fiscal year	1	5
Term loans by origination year, more than five years before current fiscal year	63	151
Revolving loans	4	17
Revolving loans converted to term loans	14	29
Loans	103	213
Residential mortgage - first lien [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	0	3
Term loans by origination year, fiscal year before current fiscal year	62	1
Term loans by origination year, two years before current fiscal year	72	4
Term loans by origination year, three years before current fiscal year	71	11
Term loans by origination year, four years before current fiscal year	92	15
Term loans by origination year, more than five years before current fiscal year	1,294	758
Revolving loans	36	21
Revolving loans converted to term loans	156	145
Loans	1,783	958
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	28	22
Term loans by origination year, fiscal year before current fiscal year	20	39
Term loans by origination year, two years before current fiscal year	31	41
Term loans by origination year, three years before current fiscal year	27	39
Term loans by origination year, four years before current fiscal year	22	32
Term loans by origination year, more than five years before current fiscal year	762	1,189
Revolving loans	10,992	15,743
Revolving loans converted to term loans	4,736	6,181
Loans	16,618	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]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	28	22
Term loans by origination year, fiscal year before current fiscal year	20	39
Term loans by origination year, two years before current fiscal year	30	39
Term loans by origination year, three years before current fiscal year	26	37
Term loans by origination year, four years before current fiscal year	21	31
Term loans by origination year, more than five years before current fiscal year	700	1,115
Revolving loans	10,883	15,366
Revolving loans converted to term loans	4,426	5,434
Loans	16,134	22,083
Residential mortgage - junior lien [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	1
Term loans by origination year, four years before current fiscal year	1	0
Term loans by origination year, more than five years before current fiscal year	10	22
Revolving loans	29	113
Revolving loans converted to term loans	46	160
Loans	86	297
Residential mortgage - junior lien [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	4	11
Revolving loans	10	154
Revolving loans converted to term loans	21	271
Loans	35	437
Residential mortgage - junior lien [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	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	3	7
Revolving loans	4	45
Revolving loans converted to term loans	12	84
Loans	20	137
Residential mortgage - junior lien [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	5	9
Revolving loans	7	36
Revolving loans converted to term loans	14	77
Loans	26	122
Residential mortgage - junior lien [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	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	40	25
Revolving loans	59	29
Revolving loans converted to term loans	217	155
Loans	317	210
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	38,243	36,374
Revolving loans converted to term loans	210	290
Loans	38,453	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	269	365
Credit card [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	37,686	35,612
Revolving loans converted to term loans	192	255
Loans	37,878	35,867
Credit card [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	176	243
Revolving loans converted to term loans	7	12
Loans	183	255
Credit card [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	118	167
Revolving loans converted to term loans	5	10
Loans	123	177
Credit card [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	98	144
Revolving loans converted to term loans	5	10
Loans	103	154
Credit card [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	165	208
Revolving loans converted to term loans	1	3
Loans	166	211
Credit card [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	29,566	19,790
Term loans by origination year, fiscal year before current fiscal year	12,700	14,831
Term loans by origination year, two years before current fiscal year	8,717	6,471
Term loans by origination year, three years before current fiscal year	3,386	3,573
Term loans by origination year, four years before current fiscal year	1,490	2,757
Term loans by origination year, more than five years before current fiscal year	800	765
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	56,659	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	88	65
Auto [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	29,246	19,625
Term loans by origination year, fiscal year before current fiscal year	12,412	14,561
Term loans by origination year, two years before current fiscal year	8,476	6,307
Term loans by origination year, three years before current fiscal year	3,271	3,459
Term loans by origination year, four years before current fiscal year	1,424	2,603
Term loans by origination year, more than five years before current fiscal year	714	697
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	55,543	47,252
Auto [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	220	120
Term loans by origination year, fiscal year before current fiscal year	193	183
Term loans by origination year, two years before current fiscal year	165	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	46	107
Term loans by origination year, more than five years before current fiscal year	57	46
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	762	650
Auto [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	69	32
Term loans by origination year, fiscal year before current fiscal year	67	60
Term loans by origination year, two years before current fiscal year	53	36
Term loans by origination year, three years before current fiscal year	25	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	21	16
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	249	204
Auto [Member] | 90-119 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	31	13
Term loans by origination year, fiscal year before current fiscal year	27	26
Term loans by origination year, two years before current fiscal year	22	14
Term loans by origination year, three years before current fiscal year	9	9
Term loans by origination year, four years before current fiscal year	6	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	103	80
Auto [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	0	0
Term loans by origination year, fiscal year before current fiscal year	1	1
Term loans by origination year, two years before current fiscal year	1	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	2	1
Auto [Member] | 180 plus days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	2,227	1,410
Term loans by origination year, fiscal year before current fiscal year	720	1,399
Term loans by origination year, two years before current fiscal year	710	587
Term loans by origination year, three years before current fiscal year	206	265
Term loans by origination year, four years before current fiscal year	107	61
Term loans by origination year, more than five years before current fiscal year	129	200
Revolving loans	24,016	20,296
Revolving loans converted to term loans	159	191
Loans	28,274	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	18	28
Other consumer [Member] | Current-29 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	2,221	1,406
Term loans by origination year, fiscal year before current fiscal year	716	1,383
Term loans by origination year, two years before current fiscal year	703	577
Term loans by origination year, three years before current fiscal year	203	261
Term loans by origination year, four years before current fiscal year	107	59
Term loans by origination year, more than five years before current fiscal year	125	193
Revolving loans	23,988	20,246
Revolving loans converted to term loans	143	162
Loans	28,206	24,287
Other consumer [Member] | 30-59 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	3	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	1	2
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	2	3
Revolving loans	10	19
Revolving loans converted to term loans	4	10
Loans	25	49
Other consumer [Member] | 60 to 89 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	2	1
Term loans by origination year, fiscal year before current fiscal year	1	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	0	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]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	1	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	0	3
Loans	9	20
Other consumer [Member] | 120-179 days past due [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	1	2
Revolving loans	1	3
Revolving loans converted to term loans	9	6
Loans	$ 11	$ 11

Loans and Related Allowance _12

Loans and Related Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 895,394	$ 887,637
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	101,969	75,172
Term loans by origination year, fiscal year before current fiscal year	55,214	60,307
Term loans by origination year, two years before current fiscal year	34,661	22,816
Term loans by origination year, three years before current fiscal year	11,714	29,673
Term loans by origination year, four years before current fiscal year	15,842	35,869
Term loans by origination year, more than five years before current fiscal year	77,309	97,314
Revolving loans	78,564	79,347
Revolving loans converted to term loans	7,001	8,722
Loans	382,274	409,220
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	70,176	53,972
Term loans by origination year, fiscal year before current fiscal year	41,794	44,077
Term loans by origination year, two years before current fiscal year	25,234	15,758
Term loans by origination year, three years before current fiscal year	8,122	25,835
Term loans by origination year, four years before current fiscal year	14,245	33,051
Term loans by origination year, more than five years before current fiscal year	76,380	96,349
Revolving loans	16,305	22,677
Revolving loans converted to term loans	6,632	8,241
Loans	258,888	299,960
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	70,148	53,950
Term loans by origination year, fiscal year before current fiscal year	41,774	44,038
Term loans by origination year, two years before current fiscal year	25,203	15,717
Term loans by origination year, three years before current fiscal year	8,095	25,796
Term loans by origination year, four years before current fiscal year	14,223	33,019
Term loans by origination year, more than five years before current fiscal year	75,618	95,160
Revolving loans	5,313	6,934
Revolving loans converted to term loans	1,896	2,060
Loans	242,270	276,674
Residential mortgage - first lien [Member] | Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	14	215
Term loans by origination year, fiscal year before current fiscal year	134	639
Term loans by origination year, two years before current fiscal year	209	904
Term loans by origination year, three years before current fiscal year	349	1,076
Term loans by origination year, four years before current fiscal year	364	2,367
Term loans by origination year, more than five years before current fiscal year	12,088	25,039
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	13,158	30,240
Residential mortgage - first lien [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	35,935	29,365
Term loans by origination year, fiscal year before current fiscal year	27,396	28,652
Term loans by origination year, two years before current fiscal year	16,583	9,911
Term loans by origination year, three years before current fiscal year	5,153	17,416
Term loans by origination year, four years before current fiscal year	9,430	22,215
Term loans by origination year, more than five years before current fiscal year	37,495	40,440
Revolving loans	2,554	3,391
Revolving loans converted to term loans	469	493
Loans	135,015	151,883
Residential mortgage - first lien [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	23,645	17,154
Term loans by origination year, fiscal year before current fiscal year	9,814	9,866
Term loans by origination year, two years before current fiscal year	5,412	2,908
Term loans by origination year, three years before current fiscal year	1,464	4,380
Term loans by origination year, four years before current fiscal year	2,485	4,955
Term loans by origination year, more than five years before current fiscal year	10,509	10,843
Revolving loans	1,073	1,361
Revolving loans converted to term loans	265	274
Loans	54,667	51,741
Residential mortgage - first lien [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	7,842	5,274
Term loans by origination year, fiscal year before current fiscal year	3,083	3,290
Term loans by origination year, two years before current fiscal year	1,980	1,189
Term loans by origination year, three years before current fiscal year	642	1,829
Term loans by origination year, four years before current fiscal year	1,137	2,106
Term loans by origination year, more than five years before current fiscal year	6,277	7,001
Revolving loans	646	879
Revolving loans converted to term loans	238	265
Loans	21,845	21,833
Residential mortgage - first lien [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	1,986	1,361
Term loans by origination year, fiscal year before current fiscal year	876	1,084
Term loans by origination year, two years before current fiscal year	645	490
Term loans by origination year, three years before current fiscal year	283	678
Term loans by origination year, four years before current fiscal year	501	831
Term loans by origination year, more than five years before current fiscal year	3,682	4,403
Revolving loans	393	520
Revolving loans converted to term loans	206	221
Loans	8,572	9,588
Residential mortgage - first lien [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	449	376
Term loans by origination year, fiscal year before current fiscal year	233	287
Term loans by origination year, two years before current fiscal year	187	148
Term loans by origination year, three years before current fiscal year	89	192
Term loans by origination year, four years before current fiscal year	129	226
Term loans by origination year, more than five years before current fiscal year	1,851	2,385
Revolving loans	188	241
Revolving loans converted to term loans	146	154
Loans	3,272	4,009
Residential mortgage - first lien [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	101	55
Term loans by origination year, fiscal year before current fiscal year	63	56
Term loans by origination year, two years before current fiscal year	46	44
Term loans by origination year, three years before current fiscal year	31	56
Term loans by origination year, four years before current fiscal year	41	92
Term loans by origination year, more than five years before current fiscal year	1,035	1,429
Revolving loans	102	127
Revolving loans converted to term loans	89	106
Loans	1,508	1,965
Residential mortgage - first lien [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	15	14
Term loans by origination year, fiscal year before current fiscal year	13	29
Term loans by origination year, two years before current fiscal year	24	36
Term loans by origination year, three years before current fiscal year	19	44
Term loans by origination year, four years before current fiscal year	41	66
Term loans by origination year, more than five years before current fiscal year	1,083	1,789
Revolving loans	114	162
Revolving loans converted to term loans	124	175
Loans	1,433	2,315
Residential mortgage - first lien [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	161	136
Term loans by origination year, fiscal year before current fiscal year	162	135
Term loans by origination year, two years before current fiscal year	117	87
Term loans by origination year, three years before current fiscal year	65	125
Term loans by origination year, four years before current fiscal year	95	161
Term loans by origination year, more than five years before current fiscal year	1,598	1,831
Revolving loans	243	253
Revolving loans converted to term loans	359	372
Loans	2,800	3,100
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	28	22
Term loans by origination year, fiscal year before current fiscal year	20	39
Term loans by origination year, two years before current fiscal year	31	41
Term loans by origination year, three years before current fiscal year	27	39
Term loans by origination year, four years before current fiscal year	22	32
Term loans by origination year, more than five years before current fiscal year	762	1,189
Revolving loans	10,992	15,743
Revolving loans converted to term loans	4,736	6,181
Loans	16,618	23,286
Residential mortgage - junior lien [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	188	293
Revolving loans	5,512	7,973
Revolving loans converted to term loans	1,481	1,819
Loans	7,181	10,085
Residential mortgage - junior lien [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	110	177
Revolving loans	2,154	3,005
Revolving loans converted to term loans	828	1,032
Loans	3,092	4,214
Residential mortgage - junior lien [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	130	207
Revolving loans	1,462	2,093
Revolving loans converted to term loans	790	1,034
Loans	2,382	3,334
Residential mortgage - junior lien [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	118	183
Revolving loans	881	1,233
Revolving loans converted to term loans	633	854
Loans	1,632	2,270
Residential mortgage - junior lien [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	65	103
Revolving loans	325	503
Revolving loans converted to term loans	338	493
Loans	728	1,099
Residential mortgage - junior lien [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	39	67
Revolving loans	160	241
Revolving loans converted to term loans	208	299
Loans	407	607
Residential mortgage - junior lien [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	43	76
Revolving loans	164	254
Revolving loans converted to term loans	215	374
Loans	422	704
Residential mortgage - junior lien [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	28	22
Term loans by origination year, fiscal year before current fiscal year	20	39
Term loans by origination year, two years before current fiscal year	31	41
Term loans by origination year, three years before current fiscal year	27	39
Term loans by origination year, four years before current fiscal year	22	32
Term loans by origination year, more than five years before current fiscal year	69	83
Revolving loans	334	441
Revolving loans converted to term loans	243	276
Loans	774	973
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	38,243	36,374
Revolving loans converted to term loans	210	290
Loans	38,453	36,664
Credit card [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	4,247	3,860
Revolving loans converted to term loans	1	1
Loans	4,248	3,861
Credit card [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	6,053	5,438
Revolving loans converted to term loans	7	7
Loans	6,060	5,445
Credit card [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	8,475	7,897
Revolving loans converted to term loans	26	29
Loans	8,501	7,926
Credit card [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	9,136	8,854
Revolving loans converted to term loans	50	60
Loans	9,186	8,914
Credit card [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	5,850	5,657
Revolving loans converted to term loans	47	64
Loans	5,897	5,721
Credit card [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	2,298	2,242
Revolving loans converted to term loans	31	46
Loans	2,329	2,288
Credit card [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	2,067	2,416
Revolving loans converted to term loans	47	82
Loans	2,114	2,498
Credit card [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	117	10
Revolving loans converted to term loans	1	1
Loans	118	11
Auto [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	29,566	19,790
Term loans by origination year, fiscal year before current fiscal year	12,700	14,831
Term loans by origination year, two years before current fiscal year	8,717	6,471
Term loans by origination year, three years before current fiscal year	3,386	3,573
Term loans by origination year, four years before current fiscal year	1,490	2,757
Term loans by origination year, more than five years before current fiscal year	800	765
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	56,659	48,187
Auto [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	4,688	2,875
Term loans by origination year, fiscal year before current fiscal year	1,983	2,606
Term loans by origination year, two years before current fiscal year	1,680	1,211
Term loans by origination year, three years before current fiscal year	690	731
Term loans by origination year, four years before current fiscal year	318	452
Term loans by origination year, more than five years before current fiscal year	108	104
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	9,467	7,979
Auto [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	4,967	3,036
Term loans by origination year, fiscal year before current fiscal year	2,123	2,662
Term loans by origination year, two years before current fiscal year	1,586	1,122
Term loans by origination year, three years before current fiscal year	586	579
Term loans by origination year, four years before current fiscal year	234	349
Term loans by origination year, more than five years before current fiscal year	87	81
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	9,583	7,829
Auto [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	4,789	3,162
Term loans by origination year, fiscal year before current fiscal year	2,104	2,514
Term loans by origination year, two years before current fiscal year	1,503	1,095
Term loans by origination year, three years before current fiscal year	583	576
Term loans by origination year, four years before current fiscal year	241	395
Term loans by origination year, more than five years before current fiscal year	106	98
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	9,326	7,840
Auto [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	5,005	3,534
Term loans by origination year, fiscal year before current fiscal year	2,282	2,542
Term loans by origination year, two years before current fiscal year	1,441	1,066
Term loans by origination year, three years before current fiscal year	526	545
Term loans by origination year, four years before current fiscal year	218	400
Term loans by origination year, more than five years before current fiscal year	111	105
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	9,583	8,192
Auto [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	4,611	3,381
Term loans by origination year, fiscal year before current fiscal year	1,824	1,948
Term loans by origination year, two years before current fiscal year	1,025	763
Term loans by origination year, three years before current fiscal year	369	395
Term loans by origination year, four years before current fiscal year	160	334
Term loans by origination year, more than five years before current fiscal year	99	94
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	8,088	6,915
Auto [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	3,118	2,208
Term loans by origination year, fiscal year before current fiscal year	1,114	1,165
Term loans by origination year, two years before current fiscal year	617	479
Term loans by origination year, three years before current fiscal year	243	274
Term loans by origination year, four years before current fiscal year	117	276
Term loans by origination year, more than five years before current fiscal year	92	87
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	5,301	4,489
Auto [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	2,372	1,581
Term loans by origination year, fiscal year before current fiscal year	1,236	1,357
Term loans by origination year, two years before current fiscal year	853	730
Term loans by origination year, three years before current fiscal year	376	463
Term loans by origination year, four years before current fiscal year	193	533
Term loans by origination year, more than five years before current fiscal year	187	186
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	5,217	4,850
Auto [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	16	13
Term loans by origination year, fiscal year before current fiscal year	34	37
Term loans by origination year, two years before current fiscal year	12	5
Term loans by origination year, three years before current fiscal year	13	10
Term loans by origination year, four years before current fiscal year	9	18
Term loans by origination year, more than five years before current fiscal year	10	10
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	94	93
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	2,227	1,410
Term loans by origination year, fiscal year before current fiscal year	720	1,399
Term loans by origination year, two years before current fiscal year	710	587
Term loans by origination year, three years before current fiscal year	206	265
Term loans by origination year, four years before current fiscal year	107	61
Term loans by origination year, more than five years before current fiscal year	129	200
Revolving loans	24,016	20,296
Revolving loans converted to term loans	159	191
Loans	28,274	24,409
Other consumer [Member] | FICO 800 or more [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	450	353
Term loans by origination year, fiscal year before current fiscal year	162	287
Term loans by origination year, two years before current fiscal year	128	94
Term loans by origination year, three years before current fiscal year	34	35
Term loans by origination year, four years before current fiscal year	8	10
Term loans by origination year, more than five years before current fiscal year	47	71
Revolving loans	1,343	2,249
Revolving loans converted to term loans	22	21
Loans	2,194	3,120
Other consumer [Member] | FICO 760-799 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	502	342
Term loans by origination year, fiscal year before current fiscal year	147	279
Term loans by origination year, two years before current fiscal year	117	93
Term loans by origination year, three years before current fiscal year	33	29
Term loans by origination year, four years before current fiscal year	7	10
Term loans by origination year, more than five years before current fiscal year	22	34
Revolving loans	819	1,110
Revolving loans converted to term loans	19	16
Loans	1,666	1,913
Other consumer [Member] | FICO 720-759 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	461	262
Term loans by origination year, fiscal year before current fiscal year	134	258
Term loans by origination year, two years before current fiscal year	115	107
Term loans by origination year, three years before current fiscal year	38	35
Term loans by origination year, four years before current fiscal year	9	11
Term loans by origination year, more than five years before current fiscal year	18	30
Revolving loans	714	915
Revolving loans converted to term loans	22	26
Loans	1,511	1,644
Other consumer [Member] | FICO 680-719 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	349	156
Term loans by origination year, fiscal year before current fiscal year	95	213
Term loans by origination year, two years before current fiscal year	99	99
Term loans by origination year, three years before current fiscal year	37	36
Term loans by origination year, four years before current fiscal year	9	11
Term loans by origination year, more than five years before current fiscal year	15	24
Revolving loans	630	798
Revolving loans converted to term loans	22	31
Loans	1,256	1,368
Other consumer [Member] | FICO 640-679 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	170	71
Term loans by origination year, fiscal year before current fiscal year	44	112
Term loans by origination year, two years before current fiscal year	55	59
Term loans by origination year, three years before current fiscal year	21	21
Term loans by origination year, four years before current fiscal year	6	7
Term loans by origination year, more than five years before current fiscal year	8	10
Revolving loans	328	415
Revolving loans converted to term loans	17	23
Loans	649	718
Other consumer [Member] | FICO 600-639 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	42	18
Term loans by origination year, fiscal year before current fiscal year	13	36
Term loans by origination year, two years before current fiscal year	19	22
Term loans by origination year, three years before current fiscal year	9	9
Term loans by origination year, four years before current fiscal year	3	4
Term loans by origination year, more than five years before current fiscal year	4	8
Revolving loans	117	151
Revolving loans converted to term loans	9	13
Loans	216	261
Other consumer [Member] | FICO less than 600 [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	18	13
Term loans by origination year, fiscal year before current fiscal year	12	41
Term loans by origination year, two years before current fiscal year	22	30
Term loans by origination year, three years before current fiscal year	11	12
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	5	7
Revolving loans	114	161
Revolving loans converted to term loans	12	18
Loans	197	287
Other consumer [Member] | No FICO available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	235	195
Term loans by origination year, fiscal year before current fiscal year	113	173
Term loans by origination year, two years before current fiscal year	155	83
Term loans by origination year, three years before current fiscal year	23	88
Term loans by origination year, four years before current fiscal year	62	3
Term loans by origination year, more than five years before current fiscal year	10	16
Revolving loans	1,236	1,248
Revolving loans converted to term loans	36	43
Loans	1,870	1,849
Other consumer [Member] | FICO not required [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	18,715	13,249
Revolving loans converted to term loans	0	0
Loans	$ 18,715	$ 13,249

Loans and Related Allowance _13

Loans and Related Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
High value properties, threshold	$ 1
Loans	895,394	$ 887,637
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	101,969	75,172
Term loans by origination year, fiscal year before current fiscal year	55,214	60,307
Term loans by origination year, two years before current fiscal year	34,661	22,816
Term loans by origination year, three years before current fiscal year	11,714	29,673
Term loans by origination year, four years before current fiscal year	15,842	35,869
Term loans by origination year, more than five years before current fiscal year	77,309	97,314
Revolving loans	78,564	79,347
Revolving loans converted to term loans	7,001	8,722
Loans	382,274	409,220
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	70,176	53,972
Term loans by origination year, fiscal year before current fiscal year	41,794	44,077
Term loans by origination year, two years before current fiscal year	25,234	15,758
Term loans by origination year, three years before current fiscal year	8,122	25,835
Term loans by origination year, four years before current fiscal year	14,245	33,051
Term loans by origination year, more than five years before current fiscal year	76,380	96,349
Revolving loans	16,305	22,677
Revolving loans converted to term loans	6,632	8,241
Loans	258,888	299,960
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	70,148	53,950
Term loans by origination year, fiscal year before current fiscal year	41,774	44,038
Term loans by origination year, two years before current fiscal year	25,203	15,717
Term loans by origination year, three years before current fiscal year	8,095	25,796
Term loans by origination year, four years before current fiscal year	14,223	33,019
Term loans by origination year, more than five years before current fiscal year	75,618	95,160
Revolving loans	5,313	6,934
Revolving loans converted to term loans	1,896	2,060
Loans	242,270	276,674
Residential mortgage - first lien [Member] | Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	14	215
Term loans by origination year, fiscal year before current fiscal year	134	639
Term loans by origination year, two years before current fiscal year	209	904
Term loans by origination year, three years before current fiscal year	349	1,076
Term loans by origination year, four years before current fiscal year	364	2,367
Term loans by origination year, more than five years before current fiscal year	12,088	25,039
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Loans	13,158	30,240
Residential mortgage - first lien [Member] | LTV 0-60% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	26,618	16,582
Term loans by origination year, fiscal year before current fiscal year	22,882	15,449
Term loans by origination year, two years before current fiscal year	16,063	6,065
Term loans by origination year, three years before current fiscal year	5,310	13,190
Term loans by origination year, four years before current fiscal year	11,030	21,097
Term loans by origination year, more than five years before current fiscal year	57,880	59,291
Revolving loans	4,348	4,971
Revolving loans converted to term loans	1,644	1,587
Loans	145,775	138,232
Residential mortgage - first lien [Member] | LTV 60.01-80% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	42,893	34,639
Term loans by origination year, fiscal year before current fiscal year	18,188	24,736
Term loans by origination year, two years before current fiscal year	8,356	7,724
Term loans by origination year, three years before current fiscal year	2,234	10,745
Term loans by origination year, four years before current fiscal year	2,647	8,970
Term loans by origination year, more than five years before current fiscal year	5,017	9,333
Revolving loans	674	1,323
Revolving loans converted to term loans	188	326
Loans	80,197	97,796
Residential mortgage - first lien [Member] | LTV 80.01-100% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	486	2,332
Term loans by origination year, fiscal year before current fiscal year	437	2,975
Term loans by origination year, two years before current fiscal year	474	900
Term loans by origination year, three years before current fiscal year	147	654
Term loans by origination year, four years before current fiscal year	134	441
Term loans by origination year, more than five years before current fiscal year	339	1,003
Revolving loans	157	425
Revolving loans converted to term loans	42	100
Loans	2,216	8,830
Residential mortgage - first lien [Member] | LTV 100.01-120% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	10	41
Term loans by origination year, fiscal year before current fiscal year	31	106
Term loans by origination year, two years before current fiscal year	24	45
Term loans by origination year, three years before current fiscal year	11	40
Term loans by origination year, four years before current fiscal year	7	41
Term loans by origination year, more than five years before current fiscal year	48	168
Revolving loans	33	117
Revolving loans converted to term loans	8	26
Loans	172	584
Residential mortgage - first lien [Member] | LTV greater than 120% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	5	31
Term loans by origination year, fiscal year before current fiscal year	10	41
Term loans by origination year, two years before current fiscal year	10	16
Term loans by origination year, three years before current fiscal year	4	19
Term loans by origination year, four years before current fiscal year	3	16
Term loans by origination year, more than five years before current fiscal year	35	78
Revolving loans	14	44
Revolving loans converted to term loans	3	8
Loans	84	253
Residential mortgage - first lien [Member] | No LTV/CLTV available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	122	110
Term loans by origination year, fiscal year before current fiscal year	92	92
Term loans by origination year, two years before current fiscal year	67	63
Term loans by origination year, three years before current fiscal year	40	72
Term loans by origination year, four years before current fiscal year	38	87
Term loans by origination year, more than five years before current fiscal year	211	248
Revolving loans	87	54
Revolving loans converted to term loans	11	13
Loans	668	739
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	28	22
Term loans by origination year, fiscal year before current fiscal year	20	39
Term loans by origination year, two years before current fiscal year	31	41
Term loans by origination year, three years before current fiscal year	27	39
Term loans by origination year, four years before current fiscal year	22	32
Term loans by origination year, more than five years before current fiscal year	762	1,189
Revolving loans	10,992	15,743
Revolving loans converted to term loans	4,736	6,181
Loans	16,618	23,286
Residential mortgage - junior lien [Member] | LTV 0-60% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	475	548
Revolving loans	7,949	8,626
Revolving loans converted to term loans	3,588	3,742
Loans	12,012	12,916
Residential mortgage - junior lien [Member] | LTV 60.01-80% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	172	335
Revolving loans	2,329	5,081
Revolving loans converted to term loans	823	1,554
Loans	3,324	6,970
Residential mortgage - junior lien [Member] | LTV 80.01-100% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	55	187
Revolving loans	554	1,507
Revolving loans converted to term loans	241	641
Loans	850	2,335
Residential mortgage - junior lien [Member] | LTV 100.01-120% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	13	59
Revolving loans	104	376
Revolving loans converted to term loans	42	156
Loans	159	591
Residential mortgage - junior lien [Member] | LTV greater than 120% [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	3	15
Revolving loans	35	128
Revolving loans converted to term loans	13	50
Loans	51	193
Residential mortgage - junior lien [Member] | No LTV/CLTV available [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, current fiscal year	28	22
Term loans by origination year, fiscal year before current fiscal year	20	39
Term loans by origination year, two years before current fiscal year	31	41
Term loans by origination year, three years before current fiscal year	27	39
Term loans by origination year, four years before current fiscal year	22	32
Term loans by origination year, more than five years before current fiscal year	44	45
Revolving loans	21	25
Revolving loans converted to term loans	29	38
Loans	$ 222	$ 281

Loans and Related Allowance _14

Loans and Related Allowance for Credit Losses, Nonaccrual (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 7,212	$ 8,728
Nonaccrual loans without related allowance for credit losses	3,489	2,875
Recognized interest income	378	341
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	2,376	4,779
Nonaccrual loans without related allowance for credit losses	270	506
Recognized interest income	166	115
Commercial and industrial loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	980	2,698
Nonaccrual loans without related allowance for credit losses	190	382
Recognized interest income	97	78
Real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	1,235	1,774
Nonaccrual loans without related allowance for credit losses	66	93
Recognized interest income	66	31
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	13	48
Nonaccrual loans without related allowance for credit losses	5	15
Recognized interest income	3	6
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	148	259
Nonaccrual loans without related allowance for credit losses	9	16
Recognized interest income	0	0
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	4,836	3,949
Nonaccrual loans without related allowance for credit losses	3,219	2,369
Recognized interest income	212	226
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Mortgage loans in process of foreclosure, amount	694	2,100
Residential mortgage - first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	3,803	2,957
Nonaccrual loans without related allowance for credit losses	2,722	1,908
Recognized interest income	122	151
Residential mortgage - junior lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	801	754
Nonaccrual loans without related allowance for credit losses	497	461
Recognized interest income	53	52
Auto [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	198	202
Nonaccrual loans without related allowance for credit losses	0	0
Recognized interest income	34	20
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	34	36
Nonaccrual loans without related allowance for credit losses	0	0
Recognized interest income	3	3
Government guaranteed mortgage loans upon foreclosure receivable [Member]
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Mortgage loans in process of foreclosure, amount	$ 583	$ 1,700

Loans and Related Allowance _15

Loans and Related Allowance for Credit Losses, 90 Days or More Past Due and Still Accruing (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	$ 5,358	$ 7,041
Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	659	690
Government insured or guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	4,699	6,351
Total Commercial [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	235	78
Commercial and industrial loans [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	206	39
Real estate mortgage [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	29	38
Real estate construction [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	0	1
Total Consumer [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	424	612
Residential mortgage - first lien [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	37	135
Residential mortgage - junior lien [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	12	19
Credit card [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	269	365
Auto [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	88	65
Other consumer [Member] | Non-government insured/guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, 90 days or more past due and still accruing	$ 18	$ 28

Loans and Related Allowance _16

Loans and Related Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 2,864	$ 8,582	$ 3,523
Financial effects of modifications [Abstract]
Charge-offs	$ 77	$ 268	$ 138
Weighted average interest rate reduction	10.84%	9.73%	8.33%
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Financing receivable, troubled debt restructuring	$ 10,200	$ 14,500
Loans and leases receivable, impaired, commitment to lend	431	489
Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1,212	3,772	$ 1,892
Financial effects of modifications [Abstract]
Charge-offs	$ 20	$ 167	$ 104
Weighted average interest rate reduction	1.11%	0.90%	0.49%
Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 890	$ 3,042	$ 1,389
Financial effects of modifications [Abstract]
Charge-offs	$ 20	$ 162	$ 104
Weighted average interest rate reduction	0.81%	0.74%	0.40%
Real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 312	$ 711	$ 455
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 5	$ 0
Weighted average interest rate reduction	1.28%	1.00%	0.69%
Real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 3	$ 18	$ 46
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	4.29%	1.00%
Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 7	$ 1	$ 2
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%
Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 1,652	$ 4,810	$ 1,631
Loan restructuring, trial modifications, amount	(3)	3	13
Financial effects of modifications [Abstract]
Charge-offs	$ 57	$ 101	$ 34
Weighted average interest rate reduction	12.01%	11.80%	10.19%
Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 1,343	$ 4,170	$ 991
Financial effects of modifications [Abstract]
Charge-offs	$ 2	$ 4	$ 2
Weighted average interest rate reduction	1.60%	1.76%	2.04%
Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 51	$ 132	$ 124
Financial effects of modifications [Abstract]
Charge-offs	$ 1	$ 3	$ 3
Weighted average interest rate reduction	2.64%	2.45%	2.35%
Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 106	$ 272	$ 376
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0
Weighted average interest rate reduction	19.12%	14.12%	12.91%
Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 136	$ 176	$ 68
Financial effects of modifications [Abstract]
Charge-offs	$ 54	$ 93	$ 29
Weighted average interest rate reduction	3.82%	4.65%	4.86%
Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 19	$ 57	$ 59
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 1	$ 0
Weighted average interest rate reduction	11.83%	8.28%	8.07%
Primary modification type, Principal forgiveness [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 44	$ 38	$ 35
Primary modification type, Principal forgiveness [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	43	34	26
Primary modification type, Principal forgiveness [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	2	24	13
Primary modification type, Principal forgiveness [Member] | Real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	41	0	0
Primary modification type, Principal forgiveness [Member] | Real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	10	13
Primary modification type, Principal forgiveness [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0
Primary modification type, Principal forgiveness [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	4	9
Loan restructuring, trial modifications, amount	0	0	0
Primary modification type, Principal forgiveness [Member] | Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0
Primary modification type, Principal forgiveness [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0
Primary modification type, Principal forgiveness [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0
Primary modification type, Principal forgiveness [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	4	8
Primary modification type, Principal forgiveness [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	1
Primary modification type, Interest rate reduction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	222	408	615
Primary modification type, Interest rate reduction [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	24	82	129
Primary modification type, Interest rate reduction [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	9	47	90
Primary modification type, Interest rate reduction [Member] | Real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	15	34	38
Primary modification type, Interest rate reduction [Member] | Real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	1	1
Primary modification type, Interest rate reduction [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0
Primary modification type, Interest rate reduction [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	198	326	486
Loan restructuring, trial modifications, amount	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	57	14	13
Primary modification type, Interest rate reduction [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	13	11	37
Primary modification type, Interest rate reduction [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	106	272	376
Primary modification type, Interest rate reduction [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	4	6	9
Primary modification type, Interest rate reduction [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	18	23	51
Primary modification type, Other concessions [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	2,598	8,136	2,873
Primary modification type, Other concessions [Member] | Total Commercial [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1,145	3,656	1,737
Primary modification type, Other concessions [Member] | Commercial and industrial loans [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	879	2,971	1,286
Primary modification type, Other concessions [Member] | Real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	256	677	417
Primary modification type, Other concessions [Member] | Real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	3	7	32
Primary modification type, Other concessions [Member] | Lease financing [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	7	1	2
Primary modification type, Other concessions [Member] | Total Consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1,453	4,480	1,136
Loan restructuring, trial modifications, amount	(3)	3	13
Primary modification type, Other concessions [Member] | Residential mortgage - first lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1,286	4,156	978
Primary modification type, Other concessions [Member] | Residential mortgage - junior lien [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	38	121	87
Primary modification type, Other concessions [Member] | Credit card [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	0	0
Primary modification type, Other concessions [Member] | Auto [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	131	166	51
Primary modification type, Other concessions [Member] | Other consumer [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	1	34	7
Trial modifications [Member] | Total Consumer [Member]
Financial effects of modifications [Abstract]
Charge-offs	$ 0	$ 0	$ 0
Weighted average interest rate reduction	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	$ 221	$ 435	$ 673
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	23	83	129
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	9	48	90
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Real estate mortgage [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	14	34	38
Financial effects of modification, Recorded investment related to interest rate reduction [Member] | Real estate construction [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	0	1	1
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
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	198	352	544
Loan restructuring, trial modifications, amount	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	57	39	68
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	13	12	39
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	106	272	376
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	4	6	9
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	18	23	52
Loans remodified [Member]
Primary Modification Type [Abstract]
Financing receivable, troubled debt restructuring, post modification	$ 737	$ 1,500	$ 1,100

Loans and Related Allowance _17

Loans and Related Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 251	$ 961	$ 338
Total Commercial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	167	806	176
Commercial and industrial loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	132	677	111
Real estate mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	34	128	48
Real estate construction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	0	0	17
Lease financing [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	1	1	0
Total Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	84	155	162
Residential mortgage - first lien [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	12	34	41
Residential mortgage - junior lien [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	1	12	13
Credit card [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	25	72	88
Auto [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	43	32	12
Other consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment of defaults	$ 3	$ 5	$ 8

Leasing Activity, Leasing Reven

Leasing Activity, Leasing Revenue (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income and Expenses, Lessor [Abstract]
Interest income on lease financing		$ 683	$ 853	$ 941
Variable revenues on lease financing		101	107	98
Fixed revenues on operating leases		995	1,169	1,393
Variable revenues on operating leases		64	47	66
Other lease-related revenues		(164)	(78)	57
Noninterest income on leases		996	1,245	1,614
Total leasing revenue		1,679	2,098	2,555
Leasing Activity Disclosures Textual [Abstract]
Lease expense		867	$ 1,000	$ 1,200
Railroad transportation equipment [Member] | Railroad cars used to transport coal [Member]
Leasing Activity Disclosures Textual [Abstract]
Impairment, lessor asset under operating lease	$ 268
Railroad transportation equipment [Member] | Railroad cars not used to transport coal [Member]
Leasing Activity Disclosures Textual [Abstract]
Impairment, lessor asset under operating lease		$ 0

Leasing Activity, Investment in

Leasing Activity, Investment in Lease Financing (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Lease receivables	$ 12,756	$ 14,210
Residual asset values	3,721	3,810
Unearned income	(1,618)	(1,933)
Lease financing	14,859	16,087
Leasing Activity Disclosures Textual [Abstract]
Leveraged leases, lessor	1,000	1,700
Operating lease assets (lessor)	6,182	7,391
Accumulated depreciation, operating lease assets, lessor	3,100	3,100
Depreciation, operating lease assets, lessor	$ 604	$ 755	$ 848

Leasing Activity, Maturities of

Leasing Activity, Maturities of Lease Receivables (Details) $ in Millions	Dec. 31, 2021USD ($)
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract]
2022, direct financing and sales-type leases, lessor	$ 4,465
2023, direct financing and sales-type leases, lessor	3,194
2024, direct financing and sales-type leases, lessor	2,077
2025, direct financing and sales-type leases, lessor	1,222
2026, direct financing and sales-type leases, lessor	588
Thereafter, direct financing and sales-type leases, lessor	1,210
Total lease receivable, direct financing and sales-type leases, lessor	12,756
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
2022, operating leases. lessor	546
2023, operating leases, lessor	394
2024, operating leases, lessor	277
2025, operating leases, lessor	187
2026, operating leases, lessor	100
Thereafter, operating leases, lessor	171
Total lease receivables, operating leases, lessor	$ 1,675

Leasing Activity, Operating Lea

Leasing Activity, Operating Lease Right-of-Use (ROU) Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
ROU assets	$ 3,805	$ 4,306
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Lease liabilities	$ 4,476	$ 4,962
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities

Leasing Activity, Lease Costs (

Leasing Activity, Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Fixed lease expense – operating leases	$ 1,048	$ 1,149	$ 1,212
Variable lease expense	289	299	314
Other	(93)	(77)	(68)
Total lease costs	$ 1,244	$ 1,371	$ 1,458

Leasing Activity, Lease Payment

Leasing Activity, Lease Payments on Operating Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022, operating leases, lessee	$ 948
2023, operating leases, lessee	952
2024, operating leases, lessee	793
2025, operating leases, lessee	609
2026, operating leases, lessee	471
Thereafter, operating leases, lessee	1,111
Total lease payments, operating leases, lessee	4,884
Less: imputed interest	408
Total operating lease liabilities	$ 4,476	$ 4,962
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Weighted average remaining lease term (in years)	6 years 6 months
Weighted average discount rate	2.60%
Leasing Activity Disclosures Textual [Abstract]
Lessee, Operating lease, term of contract	15 years
Lessee, Operating lease, term of contract, longest expiration year	2105
Lessee, Operating lease, not yet commenced, lease commitment amount	$ 39
Lessee, Operating lease, not yet commenced, earliest year of commencement	2022
Minimum [Member]
Leasing Activity Disclosures Textual [Abstract]
Lessee, Operating lease, lease not yet commenced, term of contract	1 year
Maximum [Member]
Leasing Activity Disclosures Textual [Abstract]
Lessee, Operating lease, lease not yet commenced, term of contract	11 years

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Equity Securities [Line Items]
Equity securities, carried at fair value	$ 39,098	$ 34,009
Equity securities	72,886	60,008
Held for trading [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	27,476	23,032
Held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	27,476	23,032
Not held for trading [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	11,622	10,977
Equity securities	45,410	36,976
Not held for trading [Member] | Marketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	2,578	1,564
Not held for trading [Member] | Nonmarketable equity securities [Member]
Equity Securities [Line Items]
Equity securities, carried at fair value	9,044	9,413
Not held for trading [Member] | Equity method investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	8,196	6,850
Not held for trading [Member] | Private equity [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	3,077	2,960
Not held for trading [Member] | Tax-advantaged renewable energy [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	4,740	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	379	409
Not held for trading [Member] | Low-income housing tax credit investments [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	12,314	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	3,584	3,588
Not held for trading [Member] | Other method investments - Private equity [Member]
Equity Securities [Line Items]
Equity securities, not carried at fair value	$ 9,694	$ 4,208

Equity Securities Net Gains (Lo

Equity Securities Net Gains (Losses) from Equity Securities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Gains (Losses) from Equity Securities [Line Items]
Total net gains (losses) from equity securities not held for trading	$ 6,427	$ 665	$ 2,843
Deconsolidation, Gains	442
Deconsolidation, Unrealized Gains	293
Not designated as hedging instrument [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	(2,092)	1,768	(4,959)
Economic hedges [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from economic hedge derivatives	755	1,061	(26)
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	495	(1,167)	(2,120)
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	(390)	1,477	3,480
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	(202)	63	1,067
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	(188)	1,414	2,413
Total nonmarketable equity securities not carried at fair value	6,322	355	1,483
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	(121)	(1,655)	(245)
Nonmarketable equity securities [Member] | Net unrealized gains (losses) [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Total nonmarketable equity securities not carried at fair value	4,862	1,651	567
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	$ 1,581	$ 359	$ 1,161

Equity Securities Net Gains (_2

Equity Securities Net Gains (Losses) from Measurement Alternative Equity Securities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Gains (Losses) from Measurement Alternative Equity Securities
Total net gains recognized during the period	$ 6,427	$ 665	$ 2,843
Measurement alternative [Member] | Nonmarketable equity securities [Member]
Net Gains (Losses) from Measurement Alternative Equity Securities
Gross unrealized gains due to observable price changes	4,569	1,651	584
Gross unrealized losses due to observable price changes	0	0	(17)
Impairment write-downs	(109)	(954)	(116)
Realized net gains from sale	456	38	163
Total net gains recognized during the period	$ 4,916	$ 735	$ 614

Equity Securities Measurement A

Equity Securities Measurement Alternative Cumulative Gains (Losses) (Details) - Nonmarketable equity securities [Member] - Measurement alternative [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Measurement Alternative Cumulative Gains (Losses)
Cumulative gross unrealized gains due to observable price changes	$ 6,278	$ 2,356	$ 973
Cumulative gross unrealized losses due to observable price changes	(3)	(25)	(42)
Cumulative impairment write-downs	$ (821)	$ (969)	$ (134)

Equity Securities - Low-Income

Equity Securities - Low-Income Housing Tax Credit Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
LIHTC Investment [Line Items]
Income tax expense (benefit)	$ 5,578	$ (1,157)	[1]	$ 5,761	[1]
Equity Securities Disclosures Textual [Abstract]
Affordable housing tax credits commitment, payment period	3 years	3 years
Qualified affordable housing project investments, commitment	$ 4,900	$ 4,200
Low-income housing tax credit investments [Member]
LIHTC Investment [Line Items]
Proportional amortization of investments	1,545	1,407		1,276
Tax credits and other tax benefits	(1,783)	(1,639)		(1,490)
Income tax expense (benefit)	$ (238)	$ (232)		$ (214)
[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).

Premises, Equipment and Other_3

Premises, Equipment and Other Assets, Premises and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 21,250	$ 21,390
Accumulated depreciation and amortization	12,679	12,495
Net book value, premises and equipment	8,571	8,895
Premises, Equipment and Other Assets Textual [Abstract]
Depreciation and amortization expense for premises and equipment	1,400	1,400	$ 1,400
Net gain (loss) on disposition of premises and equipment	74	71	$ 82
Land [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	1,759	1,808
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	9,442	9,504
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	7,420	7,449
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	2,597	2,597
Finance lease ROU assets [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 32	$ 32

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Components of Other Assets [Line Items]
Corporate/bank-owned life insurance	$ 20,619	$ 20,380
Accounts receivable	20,831	38,116
Operating lease assets (lessor)	6,182	7,391
Operating lease ROU assets (lessee)	3,805	4,306
Customer relationship and other amortized intangibles	1,480	1,640
Foreclosed assets	112	159
Due from customers on acceptances	155	268
Other	11,729	11,768
Total other assets	67,259	87,337
Customer relationship and other amortized intangibles [Member]
Components of Other Assets [Line Items]
Customer relationship and other amortized intangibles	211	328
AFS And HTM debt securities [Member]
Components of Other Assets [Line Items]
Interest receivable	1,360	1,368
Loans [Member]
Components of Other Assets [Line Items]
Interest receivable	1,950	2,838
Trading and other [Member]
Components of Other Assets [Line Items]
Interest receivable	$ 305	$ 415

Securitizations and Variable _3

Securitizations and Variable Interest Entities, Transfers with Continuing Involvement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Excluding resecuritization [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Cash flows from other interests held	$ 686	$ 198	$ 275
Excluding resecuritization [Member] | Fair value, inputs, level 2 [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Securities recognized, trading	40,700	37,600	41,900
Excluding resecuritization [Member] | Residential mortgages [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Assets sold	157,063	177,441	142,469
Proceeds from transfer	157,852	177,478	142,535
Net gains (losses) on sale	789	37	66
Excluding resecuritization [Member] | Residential mortgages [Member] | Fair value, inputs, level 3 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Servicing rights recognized	1,636	1,808	1,896
Excluding resecuritization [Member] | Residential mortgages [Member] | Fair value, inputs, level 2 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities recognized	23,188	31,567	0
Excluding resecuritization [Member] | Residential mortgages [Member] | Collateralized financing receivable [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Loans recognized	926	0	0
Excluding resecuritization [Member] | Commercial mortgages [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Assets sold	18,247	11,744	18,191
Proceeds from transfer	18,563	12,034	18,521
Net gains (losses) on sale	316	290	330
Excluding resecuritization [Member] | Commercial mortgages [Member] | Fair value, inputs, level 3 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Servicing rights recognized	166	161	161
Excluding resecuritization [Member] | Commercial mortgages [Member] | Fair value, inputs, level 2 [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities recognized	173	112	289
Excluding resecuritization [Member] | Commercial mortgages [Member] | Collateralized financing receivable [Member]
Quantitative Information, Transferor's Continuing Involvement [Line Items]
Loans recognized	0	0	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member]
Securitizations and Variable Interest Entities Textual [Abstract]
Maximum exposure to loss	28,370	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	4,696	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	3,341	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	27	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	4,600	30,300	$ 6,300
Carrying value of delinquent loans eligible for repurchase	107	176
Principal amount that would be payable to securitization vehicles	107	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	173	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	$ 13,300	$ 13,700

Securitizations and Variable _4

Securitizations and Variable Interest Entities, Residential Mortgage Servicing Rights (Details) - Residential mortgage servicing rights [Member] - $ / loan	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Prepayment rate	13.70%	15.40%	12.80%
Discount rate	5.90%	6.50%	7.50%
Cost to service ($ per loan)	91	96	101

Securitizations and Variable _5

Securitizations and Variable Interest Entities, Sale of Student Loan Portfolio (Details) - Student loan [Member] $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Variable Interest Entity [Line Items]
Assets sold	$ 9,500
Proceeds from transfer	9,900
Net gains (losses) on sale	355
Cash flows from other interests held	3,800
Collateralized financing receivable [Member]
Variable Interest Entity [Line Items]
Loans recognized	$ 3,800

Securitizations and Variable _6

Securitizations and Variable Interest Entities, Resecuritization Activities (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Assets	[1]	$ 1,948,068	$ 1,952,911
Resecuritization [Member] | VIEs that we do not consolidate [Member]
Variable Interest Entity [Line Items]
Assets sold		39,600	77,200	$ 27,900
Assets, nonconsolidated VIE		117,700	130,400
Resecuritization [Member] | VIEs that we do not consolidate [Member] | Carrying value [Member] | Securities [Member]
Variable Interest Entity [Line Items]
Assets		817	1,500
Resecuritization [Member] | VIEs that we do not consolidate [Member] | Fair value, inputs, level 2 [Member]
Variable Interest Entity [Line Items]
Securities recognized		$ 607	$ 1,100
[1]	Our consolidated assets at December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	$ 811,775	$ 933,020
Delinquent loans and foreclosed assets	12,637	32,179
Net charge-offs	165	214
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	112	159
Government insured or guaranteed [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	736,800	864,800
Securitizations and Variable Interest Entities Textual [Abstract]
Delinquent loans	10,200	28,500
Foreclosed assets	100	152
Commercial mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	120,962	114,134
Delinquent loans and foreclosed assets	1,923	2,217
Net charge-offs	143	136
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	403	394
Residential mortgage [Member]
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]
Total loans	690,813	818,886
Delinquent loans and foreclosed assets	10,714	29,962
Net charge-offs	22	78
Securitizations and Variable Interest Entities Textual [Abstract]
Foreclosed assets	$ 129	$ 204

Securitizations and Variable _8

Securitizations and Variable Interest Entities, Unconsolidated VIEs (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Loans	$ 895,394	$ 887,637
Equity securities	72,886	60,008
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities	88,265	75,095
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	199,695	170,833
Maximum exposure to loss	28,370	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	146,482	127,717
Maximum exposure to loss	3,341	2,944
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Tax credit structures [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	44,528	41,125
Maximum exposure to loss	17,956	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	5,489	0
Maximum exposure to loss	6,199	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Other [Member]
Variable Interest Entity [Line Items]
Assets, nonconsolidated VIE	3,196	1,991
Maximum exposure to loss	874	432
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	7,916	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	1,904	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	5,481	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Loans [Member] | Other [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	531	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	2,623	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	12,384	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	2,620	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	12,322	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	3	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	62	51
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | All other assets [Member]
Variable Interest Entity [Line Items]
Maximum exposure to loss	751	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	694	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	49	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	4,696	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	27	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	3,730	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	710	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	229	230
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member]
Variable Interest Entity [Line Items]
Loans	7,916	1,849
Debt securities	2,623	2,303
Equity securities	12,384	11,413
All other assets	751	668
Debt and other liabilities	(4,942)	(4,203)
Net assets	18,732	12,030
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities	352	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	2,620	2,303
Equity securities	0	0
All other assets	694	606
Debt and other liabilities	0	0
Net assets	3,314	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	1,904	1,760
Debt securities	0	0
Equity securities	12,322	11,362
All other assets	0	0
Debt and other liabilities	(4,941)	(4,202)
Net assets	9,285	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	5,481	0
Debt securities	0	0
Equity securities	0	0
All other assets	8	0
Debt and other liabilities	0	0
Net assets	5,489	0
VIEs that we do not consolidate [Member] | Excluding resecuritization [Member] | Carrying value [Member] | Other [Member]
Variable Interest Entity [Line Items]
Loans	531	89
Debt securities	3	0
Equity securities	62	51
All other assets	49	62
Debt and other liabilities	(1)	(1)
Net assets	$ 644	$ 201

Securitizations and Variable _9

Securitizations and Variable Interest Entities, Transactions with Consolidated VIEs (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Assets	[1]	$ 1,948,068	$ 1,952,911
Loans		895,394	887,637
Long-term debt		(160,689)	(212,950)
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities		88,265	75,095
Carrying value [Member]
Variable Interest Entity [Line Items]
Long-term debt		(160,660)	(212,922)
VIEs that we consolidate [Member]
Variable Interest Entity [Line Items]
Assets		7,529	13,983
VIEs that we consolidate [Member] | Commercial and industrial loans and leases [Member]
Variable Interest Entity [Line Items]
Assets		7,013	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		516	1,627
VIEs that we consolidate [Member] | Carrying value [Member]
Variable Interest Entity [Line Items]
Assets		4,781	12,146
Loans		4,476	10,869
Debt securities		71	967
All other assets		234	310
Long-term debt		(149)	(203)
All other liabilities		(259)	(1,100)
Securitizations and Variable Interest Entities Textual [Abstract]
Trading debt securities		0	269
VIEs that we consolidate [Member] | Carrying value [Member] | Commercial and industrial loans and leases [Member]
Variable Interest Entity [Line Items]
Loans		4,099	5,005
Debt securities		0	0
All other assets		231	223
Long-term debt		0	0
All other liabilities		(188)	(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		377	507
Debt securities		71	967
All other assets		3	75
Long-term debt		(149)	(203)
All other liabilities		$ (71)	$ (900)
[1]	Our consolidated assets at December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 billion and $12.1 billion, respectively.

Mortgage Banking Activities, An

Mortgage Banking Activities, Analysis of Changes in Fair Value MSRs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
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	(1,170)	$ 4,693	$ 2,569
Changes due to collection/realization of expected cash flows	2,012	2,375	2,210
Total changes in fair value	(842)	(7,068)	(4,779)
Fair value, end of period	6,920	6,125
Commercial mortgage servicing [Member]
Mortgage Banking Activities Textual [Abstract]
Mortgage servicing rights	1,300	1,300
Servicing asset at amortized cost, fair value	1,500	1,400
Residential mortgage servicing rights [Member]
Changes in MSRs measured at fair value
Fair value, beginning of period	6,125	11,517	14,649
Servicing from securitizations or asset transfers	1,645	1,708	1,933
Sales and other	(8)	(32)	(286)
Net additions	1,637	1,676	1,647
Changes in fair value:
Net changes in valuation inputs or assumptions	1,170	(4,693)	(2,569)
Changes due to collection/realization of expected cash flows	(2,012)	(2,375)	(2,210)
Total changes in fair value	(842)	(7,068)	(4,779)
Fair value, end of period	6,920	6,125	11,517
Residential mortgage servicing rights [Member] | Mortgage interest rates [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	1,625	(3,946)	(2,406)
Residential mortgage servicing rights [Member] | Servicing and foreclosure costs [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	(9)	(175)	48
Residential mortgage servicing rights [Member] | Discount rates [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	(56)	27	145
Residential mortgage servicing rights [Member] | Prepayment estimates and other [Member]
Changes in fair value:
Net changes in valuation inputs or assumptions	$ (390)	$ (599)	$ (356)

Mortgage Banking Activities, Ec

Mortgage Banking Activities, Economic Assumptions and Sensitivity of Residential MSRs (Details) - Residential mortgage servicing rights [Member] $ in Millions	12 Months Ended
	Dec. 31, 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	$ 6,920	$ 6,125
Expected weighted-average life (in years)	4 years 8 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 rate assumption	14.70%	19.90%
Impact on fair value from 10% adverse change	$ 356	$ 434
Impact on fair value from 25% adverse change	$ 834	$ 1,002
Discount rate assumption	6.40%	5.80%
Impact on fair value from 100 basis point increase	$ 276	$ 229
Impact on fair value from 200 basis point increase	$ 529	$ 440
Cost to service assumption ($ per loan) | $ / loan	106	130
Impact on fair value from 10% adverse change	$ 165	$ 181
Impact on fair value from 25% adverse change	$ 411	$ 454

Mortgage Banking Activities, Ma

Mortgage Banking Activities, Managed Servicing Portfolio (Details) - USD ($) $ in Billions	Dec. 31, 2021	Dec. 31, 2020
Components of Managed Servicing Portfolio [Abstract]
Total managed servicing portfolio	$ 1,721	$ 1,888
Total serviced for others, excluding subserviced for others	$ 1,304	$ 1,431
MSRs as a percentage of loans serviced for others	0.63%	0.52%
Weighted average note rate (mortgage loans serviced for others)	0.0382	0.0403
Mortgage Banking Activities Textual [Abstract]
Servicer advances on mortgage loans	$ 3.2	$ 3.4
Residential mortgage servicing rights [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	718	859
Owned loans serviced	276	323
Total managed servicing portfolio	994	1,182
Commercial mortgage servicing [Member]
Components of Managed Servicing Portfolio [Abstract]
Serviced and subserviced for others	597	583
Owned loans serviced	130	123
Total managed servicing portfolio	$ 727	$ 706

Mortgage Banking Activities, Mo

Mortgage Banking Activities, Mortgage Banking Noninterest Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Servicing Asset at Amortized Cost [Line Items]
Contractually specified servicing fees, late charges and ancillary fees	$ 2,801	$ 3,250	$ 3,660
Unreimbursed direct servicing costs	(332)	(620)	(403)
Servicing fees	2,469	2,630	3,257
Amortization	(225)	(308)	(274)
Changes due to collection/realization of expected cash flows	(2,012)	(2,375)	(2,210)
Net servicing fees	232	(53)	773
Changes in fair value of MSRs due to valuation inputs or assumptions	1,170	(4,693)	(2,569)
Net derivative gains (losses) from economic hedges	(1,208)	4,607	2,318
Market-related valuation changes to MSRs, net of hedge results	(38)	(86)	(251)
Total net servicing income	194	(139)	522
Net gains on mortgage loan originations/sales	4,762	3,632	2,193
Total mortgage banking noninterest income	4,956	3,493	2,715
Total changes in fair value of MSRs carried at fair value	(842)	(7,068)	(4,779)
Mortgage Banking Activities Textual [Abstract]
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	1,200	(1,800)	$ (141)
Commercial mortgage servicing [Member] | Amortized [Member]
Mortgage Banking Activities Textual [Abstract]
MSR impairment	$ (41)	$ 37

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amortized intangible assets:
Gross carrying value	$ 5,636	$ 5,491
Accumulated amortization	(4,156)	(3,851)
Net carrying value	1,480	1,640
Unamortized intangible assets:
Mortgage servicing rights, carried at fair value	6,920	6,125
Goodwill	25,180	26,392	$ 26,390
Trademark	14	14
Amortized [Member] | Commercial mortgage servicing [Member]
Finite-Lived Intangible Assets [Line Items]
MSR Valuation allowance	4	37
MSRs [Member]
Amortized intangible assets:
Gross carrying value	4,794	4,612
Accumulated amortization	(3,525)	(3,300)
Net carrying value	1,269	1,312
Customer relationship and other intangibles [Member]
Amortized intangible assets:
Gross carrying value	842	879
Accumulated amortization	(631)	(551)
Net carrying value	$ 211	$ 328

Intangible Assets, Amortization

Intangible Assets, Amortization Expense (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Year ended December 31, 2021 (actual)	$ 305
Estimate for year ended December 31,
2022	305
2023	264
2024	228
2025	196
2026	157
MSRs [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Year ended December 31, 2021 (actual)	225
Estimate for year ended December 31,
2022	246
2023	213
2024	187
2025	163
2026	130
Customer relationship and other intangibles [Member]
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Year ended December 31, 2021 (actual)	80
Estimate for year ended December 31,
2022	59
2023	51
2024	41
2025	33
2026	$ 27

Intangible Assets, Allocation o

Intangible Assets, Allocation of Goodwill to Operating Segments (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 26,392	$ 26,390
Foreign currency translation		0	2
Transfers of goodwill		0	0
Divestitures		(1,212)
Goodwill, ending balance	$ 25,180	25,180	26,392
Corporate [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		305	0
Foreign currency translation		0	0
Transfers of goodwill		1,012	305
Divestitures		(1,212)
Goodwill, ending balance	105	105	305
Consumer Banking and Lending [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		16,418	16,685
Foreign currency translation		0	0
Transfers of goodwill		0	(267)
Divestitures		0
Goodwill, ending balance	16,418	16,418	16,418
Wholesale Banking [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		0	8,429
Foreign currency translation		0	0
Transfers of goodwill		0	(8,429)
Divestitures		0
Goodwill, ending balance	0	0	0
Commercial Banking [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		3,018	0
Foreign currency translation		0	2
Transfers of goodwill		(80)	3,016
Divestitures		0
Goodwill, ending balance	2,938	2,938	3,018
Corporate and Investment Banking [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		5,375	0
Foreign currency translation		0	0
Transfers of goodwill		0	5,375
Divestitures		0
Goodwill, ending balance	5,375	5,375	5,375
Wealth and Investment Management [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		1,276	1,276
Foreign currency translation		0	0
Transfers of goodwill		(932)	0
Divestitures		0
Goodwill, ending balance	344	$ 344	$ 1,276
Wells Fargo Asset Management (WFAM) [Member]
Goodwill Narrative [Abstract]
Gain (loss) on disposition of business	674
Corporate Trust Services [Member]
Goodwill Narrative [Abstract]
Gain (loss) on disposition of business	$ 269

Deposits (Details)

Deposits (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Time Deposits [Line Items]
Total domestic and Non-U.S	$ 30,012	$ 52,807
Time deposits $250,000 or more	5,527	9,033
Time Deposits, Fiscal Year Maturity [Abstract]
2022	20,816
2023	5,427
2024	2,159
2025	582
2026	143
Thereafter	885
Total	30,012	52,807
Deposits (Textuals) [Abstract]
Demand deposit overdrafts as loan balances	$ 153	$ 326

Long-Term Debt, Summary (Detail

Long-Term Debt, Summary (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 160,689	$ 212,950
Wells Fargo Bank, National Association and other bank entities [Member]
Debt Instrument [Line Items]
Senior debt	449	15,083
Subordinated debt	5,387	5,775
Junior subordinated debt	388	375
Long-term debt	12,858	27,130
Wells Fargo Bank, National Association and other bank entities [Member] | Fixed-rate notes [Member]
Debt Instrument [Line Items]
Senior debt	0	7,644
Subordinated debt	5,387	5,775
Wells Fargo Bank, National Association and other bank entities [Member] | Floating-rate notes [Member]
Debt Instrument [Line Items]
Senior debt	116	3,747
Junior subordinated debt	388	375
Wells Fargo Bank, National Association and other bank entities [Member] | FixFloat notes [Member]
Debt Instrument [Line Items]
Senior debt	0	2,841
Wells Fargo Bank, National Association and other bank entities [Member] | Structured notes [Member]
Debt Instrument [Line Items]
Senior debt	307	792
Wells Fargo Bank, National Association and other bank entities [Member] | Fixed-rate advances - Federal Home Loan Bank (FHLB) [Member]
Debt Instrument [Line Items]
Senior debt	0	31
Wells Fargo Bank, National Association and other bank entities [Member] | Finance leases [Member]
Debt Instrument [Line Items]
Senior debt	26	28
Wells Fargo Bank, National Association and other bank entities [Member] | Mortgage notes and other debt [Member]
Debt Instrument [Line Items]
Other long-term debt	$ 6,485	5,694
Wells Fargo Bank, National Association and other bank entities [Member] | Mortgage notes and other debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.24%
Wells Fargo Bank, National Association and other bank entities [Member] | Mortgage notes and other debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	9.03%
Wells Fargo Bank, National Association and other bank entities [Member] | Senior debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 449
Wells Fargo Bank, National Association and other bank entities [Member] | Senior debt [Member] | Floating-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.00%
Wells Fargo Bank, National Association and other bank entities [Member] | Senior debt [Member] | Floating-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.00%
Wells Fargo Bank, National Association and other bank entities [Member] | Senior debt [Member] | Finance leases [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	1.13%
Wells Fargo Bank, National Association and other bank entities [Member] | Senior debt [Member] | Finance leases [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	17.78%
Wells Fargo Bank, National Association and other bank entities [Member] | Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 5,387
Wells Fargo Bank, National Association and other bank entities [Member] | Subordinated Debt [Member] | Fixed-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	5.25%
Wells Fargo Bank, National Association and other bank entities [Member] | Subordinated Debt [Member] | Fixed-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	7.74%
Wells Fargo Bank, National Association and other bank entities [Member] | Junior subordinated debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 388
Wells Fargo Bank, National Association and other bank entities [Member] | Junior subordinated debt [Member] | Floating-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.73%
Wells Fargo Bank, National Association and other bank entities [Member] | Junior subordinated debt [Member] | Floating-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.77%
Other Consolidated Subsidiaries [Member]
Debt Instrument [Line Items]
Senior debt	$ 1,545	3,576
Long-term debt	1,545	3,608
Other Consolidated Subsidiaries [Member] | Fixed-rate notes [Member]
Debt Instrument [Line Items]
Senior debt	398	1,390
Other Consolidated Subsidiaries [Member] | Structured notes [Member]
Debt Instrument [Line Items]
Senior debt	1,147	2,186
Other Consolidated Subsidiaries [Member] | Mortgage notes and other debt [Member]
Debt Instrument [Line Items]
Other long-term debt	0	32
Other Consolidated Subsidiaries [Member] | Senior debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,545
Other Consolidated Subsidiaries [Member] | Senior debt [Member] | Fixed-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	3.46%
Other Consolidated Subsidiaries [Member] | Senior debt [Member] | Fixed-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	3.46%
Wells Fargo & Company [Member]
Debt Instrument [Line Items]
Senior debt	$ 116,944	150,626
Subordinated debt	27,970	29,874
Junior subordinated debt	1,372	1,712
Long-term debt	146,286	182,212
Wells Fargo & Company [Member] | Fixed-rate notes [Member]
Debt Instrument [Line Items]
Senior debt	62,525	84,892
Subordinated debt	27,970	29,874
Junior subordinated debt	1,041	1,382
Wells Fargo & Company [Member] | Floating-rate notes [Member]
Debt Instrument [Line Items]
Senior debt	5,535	13,736
Junior subordinated debt	331	330
Wells Fargo & Company [Member] | FixFloat notes [Member]
Debt Instrument [Line Items]
Senior debt	43,010	43,917
Wells Fargo & Company [Member] | Structured notes [Member]
Debt Instrument [Line Items]
Senior debt	5,874	8,081
Wells Fargo & Company [Member] | Senior debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 116,944
Wells Fargo & Company [Member] | Senior debt [Member] | Fixed-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.38%
Wells Fargo & Company [Member] | Senior debt [Member] | Fixed-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	6.75%
Wells Fargo & Company [Member] | Senior debt [Member] | Floating-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.00%
Wells Fargo & Company [Member] | Senior debt [Member] | Floating-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	1.36%
Wells Fargo & Company [Member] | Senior debt [Member] | FixFloat notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.81%
Wells Fargo & Company [Member] | Senior debt [Member] | FixFloat notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	5.01%
Wells Fargo & Company [Member] | Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 27,970
Wells Fargo & Company [Member] | Subordinated Debt [Member] | Fixed-rate notes [Member]
Long-Term Debt Textual [Abstract]
Debt instrument, unamortized discount	123	126
Debt issuance costs, gross	$ 2	2
Wells Fargo & Company [Member] | Subordinated Debt [Member] | Fixed-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	3.45%
Wells Fargo & Company [Member] | Subordinated Debt [Member] | Fixed-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	7.57%
Wells Fargo & Company [Member] | Junior subordinated debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,372
Wells Fargo & Company [Member] | Junior subordinated debt [Member] | Fixed-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	5.95%
Wells Fargo & Company [Member] | Junior subordinated debt [Member] | Fixed-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	7.95%
Wells Fargo & Company [Member] | Junior subordinated debt [Member] | Floating-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.62%
Wells Fargo & Company [Member] | Junior subordinated debt [Member] | Floating-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	1.12%
VIEs that we consolidate [Member] | Wells Fargo Bank, National Association and other bank entities [Member] | Floating-rate notes [Member]
Debt Instrument [Line Items]
Other long-term debt	$ 149	203
VIEs that we consolidate [Member] | Wells Fargo Bank, National Association and other bank entities [Member] | Floating-rate notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.24%
VIEs that we consolidate [Member] | Wells Fargo Bank, National Association and other bank entities [Member] | Floating-rate notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate(s)	0.25%
VIEs that we do not consolidate [Member]
Debt Instrument [Line Items]
Junior subordinated debt	$ 332	1,400
Long-Term Debt Textual [Abstract]
Junior subordinated debenture owed to unconsolidated subsidiary trust	388	704
Affiliate entity [Member] | Subordinated Debt [Member] | Fixed-rate notes [Member]
Long-Term Debt Textual [Abstract]
Debt issuance costs, gross	$ 329	$ 384

Long-Term Debt, Maturities (Det

Long-Term Debt, Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Maturities of Long-Term Debt [Line Items]
2022	$ 15,771
2023	14,536
2024	13,674
2025	16,660
2026	22,540
Thereafter	77,508
Total	160,689	$ 212,950
Wells Fargo Bank, National Association and other bank entities [Member]
Maturities of Long-Term Debt [Line Items]
2022	2,534
2023	2,338
2024	958
2025	606
2026	211
Thereafter	6,211
Total	12,858	27,130
Wells Fargo Bank, National Association and other bank entities [Member] | Senior debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	28
2023	3
2024	3
2025	190
2026	86
Thereafter	139
Total	449
Wells Fargo Bank, National Association and other bank entities [Member] | Subordinated Debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	0
2023	1,045
2024	0
2025	163
2026	0
Thereafter	4,179
Total	5,387
Wells Fargo Bank, National Association and other bank entities [Member] | Junior subordinated debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	0
2023	0
2024	0
2025	0
2026	0
Thereafter	388
Total	388
Wells Fargo Bank, National Association and other bank entities [Member] | Securitizations and other bank debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	2,506
2023	1,290
2024	955
2025	253
2026	125
Thereafter	1,505
Total	6,634
Other Consolidated Subsidiaries [Member]
Maturities of Long-Term Debt [Line Items]
2022	187
2023	500
2024	105
2025	423
2026	224
Thereafter	106
Total	1,545	3,608
Other Consolidated Subsidiaries [Member] | Senior debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	187
2023	500
2024	105
2025	423
2026	224
Thereafter	106
Total	1,545
Wells Fargo & Company [Member]
Maturities of Long-Term Debt [Line Items]
2022	13,050
2023	11,698
2024	12,611
2025	15,631
2026	22,105
Thereafter	71,191
Total	146,286	$ 182,212
Wells Fargo & Company [Member] | Senior debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	13,050
2023	8,045
2024	11,871
2025	14,554
2026	19,173
Thereafter	50,251
Total	116,944
Wells Fargo & Company [Member] | Subordinated Debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	0
2023	3,653
2024	740
2025	1,077
2026	2,932
Thereafter	19,568
Total	27,970
Wells Fargo & Company [Member] | Junior subordinated debt [Member]
Maturities of Long-Term Debt [Line Items]
2022	0
2023	0
2024	0
2025	0
2026	0
Thereafter	1,372
Total	$ 1,372

Guarantees - Carrying Value and

Guarantees - Carrying Value and Maximum Exposure to Loss (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		$ (135)	$ (331)
Maximum exposure to loss, Expires in one year or less		28,388	27,879
Maximum exposure to loss, Expires after one year through three years		12,917	16,500
Maximum exposure to loss, Expires after three years through five years		6,990	5,188
Maximum exposure to loss, Expires after five years		17,513	17,177
Maximum exposure to loss		65,808	66,744
Card transaction volume		$ 1,700,000
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]	$ 1,757,958	1,767,199
Percentage share of losses owed on loans and MHFS sold with recourse (up to 33.33%)		33.33%
Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		$ 33,981	32,946
Written options [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		(280)	(538)
Maximum exposure to loss, Expires in one year or less		12,107	12,735
Maximum exposure to loss, Expires after one year through three years		4,575	7,972
Maximum exposure to loss, Expires after three years through five years		513	889
Maximum exposure to loss, Expires after five years		36	58
Maximum exposure to loss		17,231	21,654
Written options [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		13,645	13,394
Standby letters of credit [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		119	156
Maximum exposure to loss, Expires in one year or less		13,816	11,977
Maximum exposure to loss, Expires after one year through three years		5,260	4,962
Maximum exposure to loss, Expires after three years through five years		1,572	1,897
Maximum exposure to loss, Expires after five years		460	433
Maximum exposure to loss		21,108	19,269
Standby letters of credit [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		6,939	7,528
Direct pay letters of credit [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		6	18
Maximum exposure to loss, Expires in one year or less		1,597	2,256
Maximum exposure to loss, Expires after one year through three years		2,137	2,746
Maximum exposure to loss, Expires after three years through five years		1,283	531
Maximum exposure to loss, Expires after five years		4	39
Maximum exposure to loss		5,021	5,572
Direct pay letters of credit [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		1,373	1,102
Loans and LHFS sold with recourse [Member]
Guarantor Obligations [Line Items]
Carrying value of obligation (asset)		20	33
Maximum exposure to loss, Expires in one year or less		71	177
Maximum exposure to loss, Expires after one year through three years		943	819
Maximum exposure to loss, Expires after three years through five years		3,610	1,870
Maximum exposure to loss, Expires after five years		8,650	9,723
Maximum exposure to loss		13,274	12,589
Loans and LHFS sold with recourse [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		11,268	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		8,100	5,510
Maximum exposure to loss		8,100	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)		0	0
Maximum exposure to loss, Expires in one year or less		797	734
Maximum exposure to loss, Expires after one year through three years		2	1
Maximum exposure to loss, Expires after three years through five years		12	1
Maximum exposure to loss, Expires after five years		263	1,414
Maximum exposure to loss		1,074	2,150
Other guarantees and indemnifications [Member] | Non-investment grade [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		756	590
Third party clearing indemnifications [Member]
Guarantor Obligations [Line Items]
Maximum exposure to loss		216	1,400
Collateral provided to third-party clearing agents		2,300	1,200
Other commitments and guarantees [Member] | Wells Fargo Finance, LLC [Member]
Guarantor Obligations [Line Items]
Liabilities		$ 1,200	$ 2,300
[1]	Our consolidated liabilities at December 31, 2021 and 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $149 million and $203 million; All other liabilities, $259 million and $900 million; and Total liabilities, $408 million and $1.1 billion, respectively.

Other Commitments (Details)

Other Commitments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Resale agreements, unfunded commitments	$ 11,000	$ 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	$ 2,400	$ 3,200

Pledged Assets (Details)

Pledged Assets (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Related to trading activities:
Equity securities, carried at fair value		$ 39,098	$ 34,009
Total pledged assets related to trading activities		139,162	123,608
Related to VIEs:
Assets	[1]	1,948,068	1,952,911
Loans eligible for repurchase from GNMA securitizations		109	179
Total pledged assets		420,516	496,161
VIEs that we consolidate [Member]
Related to VIEs:
Assets		7,529	13,983
Carrying value [Member] | VIEs that we consolidate [Member]
Related to VIEs:
Assets		4,781	12,146
Carrying value [Member] | Total VIEs and Transfers that we account for as secured borrowings [Member]
Related to VIEs:
Total pledged assets		4,890	12,325
Held for trading [Member]
Related to trading activities:
Equity securities, carried at fair value		27,476	23,032
Related to non-trading activities [Member]
Related to trading activities:
Equity securities, carried at fair value		11,622	10,977
Related to non-trading activities:
Loans		288,698	344,220
Deb securities:
Available-for-sale		65,198	57,289
Held-to-maturity		13,843	17,290
Other financial assets		1,600	230
Related to VIEs:
Total pledged assets		369,339	419,029
Related to trading activities [Member]
Related to trading activities:
Trading debt securities and other		14,216	19,572
Total pledged assets related to trading activities		46,287	64,807
Related to trading activities [Member] | Held for trading [Member]
Related to trading activities:
Equity securities, carried at fair value		984	470
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		$ 31,087	$ 44,765
[1]	Our consolidated assets at December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 billion and $12.1 billion, respectively.

Pledged Assets, Offsetting - Se

Pledged Assets, Offsetting - Securities Financing Activities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	$ 89,066	$ 80,933
Collateral received with the right to sell or repledge	124,400	108,500
Resale, Securities Borrowing and Similar Arrangements
Gross amounts recognized	103,140	92,446
Gross amounts offset in consolidated balance sheet	(14,074)	(11,513)
Net amounts in consolidated balance sheet	89,066	80,933
Collateral not recognized in consolidated balance sheet	(88,330)	(80,158)
Net amount	736	775
Repurchase and securities lending agreements
Gross amounts recognized	35,043	57,622
Gross amounts offset in consolidated balance sheet	(14,074)	(11,513)
Net amounts in consolidated balance sheet	20,969	46,109
Collateral pledged but not netted in consolidated balance sheet	(20,820)	(45,819)
Net amount	149	290
Collateral sold or repledged	28,800	36,100
Collateral pledged, fair value	35,900	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	66,200	65,600
Resale, Securities Borrowing and Similar Arrangements
Net amounts in consolidated balance sheet	66,200	65,600
Loans [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net amounts in consolidated balance sheet	22,900	15,300
Resale, Securities Borrowing and Similar Arrangements
Net amounts in consolidated balance sheet	$ 22,900	$ 15,300

Pledged Assets, Collateral Type

Pledged Assets, Collateral Type and Contractual Maturities of Gross Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 29,783	$ 52,182
Securities lending arrangements	5,260	5,440
Total repurchases and securities lending	35,043	57,622
Overnight/Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	16,452	36,946
Securities lending arrangements	4,810	4,690
Total repurchases and securities lending	21,262	41,636
Up to 30 days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	3,570	5,251
Securities lending arrangements	0	400
Total repurchases and securities lending	3,570	5,651
30-90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	4,276	5,100
Securities lending arrangements	0	350
Total repurchases and securities lending	4,276	5,450
Over 90 days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	5,485	4,885
Securities lending arrangements	450	0
Total repurchases and securities lending	5,935	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	14,956	22,922
Securities lending arrangements	33	64
Securities of U.S. states and political subdivisions [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1	4
Federal agency mortgage-backed securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	3,432	15,353
Securities lending arrangements	17	23
Non-agency mortgage-backed securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	809	1,069
Corporate debt securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	8,899	9,944
Securities lending arrangements	80	79
Asset-backed securities index [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	358	1,054
Equity securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	919	1,500
Securities lending arrangements	5,050	5,189
Other [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	409	336
Securities lending arrangements	$ 80	$ 85

Legal Actions (Details)

Legal Actions (Details) $ in Millions

Dec. 31, 2020legal_action

Feb. 21, 2020USD ($)

Nov. 30, 2016USD ($)

Jul. 13, 2012USD ($)

Jan. 31, 2022USD ($)

Nov. 30, 2021USD ($)

Dec. 31, 2020USD ($)

Aug. 31, 2015legal_action

Dec. 31, 2021USD ($)legal_action

Sep. 09, 2021USD ($)

Nov. 30, 2020legal_action

Apr. 20, 2018USD ($)

Jul. 31, 2017legal_action

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

$ 2,900

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, Damages Awarded, Value

$ 45

Commercial Lending Shareholder Litigation [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Pending Claims, Number | legal_action

1

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]

Loss Contingency Accrual, Payments

$ 18.5

Mortgage Lending Matters - Hernandez V Wells Fargo [Member] | Subsequent event [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Damages Awarded, Value

$ 22

Mortgage Lending Matters - Ryder case [Member] | Subsequent event [Member]

Legal Actions (Textual) [Abstract]

Loss Contingency, Damages Awarded, Value

$ 12

Mortgage Lending Matters (OCC) [Member]

Legal Actions (Textual) [Abstract]

Civil Money Penalty

$ 250

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.

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	Dec. 31, 2021	Dec. 31, 2020
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, gross	$ 52,908	$ 65,682
Fair value derivative assets, netting	(31,430)	(39,836)
Net amounts in consolidated balance sheet, assets	21,478	25,846
Fair value of derivative liabilities, gross	45,956	58,065
Fair value derivative liabilities, netting	(36,532)	(41,556)
Net amounts in consolidated balance sheet, liabilities	9,424	16,509
Designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, gross	2,493	4,593
Fair value of derivative liabilities, gross	996	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	153,993	184,090
Fair value derivative assets, gross	2,212	3,212
Fair value of derivative liabilities, gross	327	789
Designated as hedging instrument [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	24,949	47,331
Fair value derivative assets, gross	281	1,381
Fair value of derivative liabilities, gross	669	607
Not designated as hedging instrument [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, gross	50,415	61,089
Fair value of derivative liabilities, gross	44,960	56,669
Economic hedges [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, gross	1,935	2,066
Fair value of derivative liabilities, gross	1,323	2,349
Economic hedges [Member] | Interest rate contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	142,234	261,159
Fair value derivative assets, gross	40	341
Fair value of derivative liabilities, gross	41	344
Economic hedges [Member] | Equity contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	26,263	25,997
Fair value derivative assets, gross	1,493	1,363
Fair value of derivative liabilities, gross	1,194	490
Economic hedges [Member] | Foreign exchange contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	28,192	47,106
Fair value derivative assets, gross	395	331
Fair value of derivative liabilities, gross	88	1,515
Economic hedges [Member] | Credit contracts [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Notional or contractual amount	290	73
Fair value derivative assets, gross	7	31
Fair value of derivative liabilities, gross	0	0
Customer accommodation trading and other derivatives [Member]
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]
Fair value derivative assets, gross	48,480	59,023
Fair value of derivative liabilities, gross	43,637	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	7,976,534	7,947,941
Fair value derivative assets, gross	20,286	32,510
Fair value of derivative liabilities, gross	17,435	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	76,642	65,790
Fair value derivative assets, gross	5,965	2,036
Fair value of derivative liabilities, gross	2,417	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	321,863	280,195
Fair value derivative assets, gross	16,278	17,522
Fair value of derivative liabilities, gross	17,827	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	560,049	412,879
Fair value derivative assets, gross	5,912	6,891
Fair value of derivative liabilities, gross	5,915	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	38,318	34,329
Fair value derivative assets, gross	39	64
Fair value of derivative liabilities, gross	$ 43	$ 58

Derivatives, Gross Fair Values

Derivatives, Gross Fair Values of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative Assets
Fair value derivative assets	$ 45,876	$ 54,559
Counterparty netting, assets	(27,172)	(34,304)
Cash collateral netting, assets	(4,258)	(5,532)
Total derivatives subject to enforceable master netting arrangements, net, assets	14,446	14,723
Derivatives not subject to enforceable master netting arrangements, assets	7,032	11,123
Total derivatives recognized in consolidated balance sheet, net, assets	21,478	25,846
Non-cash collateral not offset, assets	(1,432)	(2,157)
Total Derivatives, net, assets	20,046	23,689
Derivative Liabilities
Fair value derivative liabilities	41,238	50,082
Counterparty netting, liabilities	(27,046)	(34,106)
Cash collateral netting, liabilities	(9,486)	(7,450)
Total derivatives subject to enforceable master netting arrangements, net, liabilities	4,706	8,526
Derivatives not subject to enforceable master netting arrangements , liabilities	4,718	7,983
Total derivatives recognized in consolidated balance sheet, net, liabilities	9,424	16,509
Non-cash collateral not offset, Liabilities	(412)	(3,588)
Total Derivatives, net, liabilities	9,012	12,921
Derivatives (Textual) [Abstract]
Valuation adjustments for derivative assets	284	399
Valuation adjustments for derivative liabilities	158	201
Interest rate contracts [Member]
Derivative Assets
Fair value derivative assets	20,287	32,125
Derivative Liabilities
Fair value derivative liabilities	16,874	25,174
Interest rate contracts [Member] | OTC [Member]
Derivative Assets
Fair value derivative assets	20,067	30,958
Derivative Liabilities
Fair value derivative liabilities	16,654	24,048
Interest rate contracts [Member] | OTC cleared [Member]
Derivative Assets
Fair value derivative assets	168	1,156
Derivative Liabilities
Fair value derivative liabilities	192	1,099
Interest rate contracts [Member] | Exchange traded [Member]
Derivative Assets
Fair value derivative assets	52	11
Derivative Liabilities
Fair value derivative liabilities	28	27
Commodity contracts [Member]
Derivative Assets
Fair value derivative assets	5,597	1,785
Derivative Liabilities
Fair value derivative liabilities	2,296	1,461
Commodity contracts [Member] | OTC [Member]
Derivative Assets
Fair value derivative assets	5,040	1,498
Derivative Liabilities
Fair value derivative liabilities	1,249	1,009
Commodity contracts [Member] | Exchange traded [Member]
Derivative Assets
Fair value derivative assets	557	287
Derivative Liabilities
Fair value derivative liabilities	1,047	452
Equity contracts [Member]
Derivative Assets
Fair value derivative assets	13,625	12,506
Derivative Liabilities
Fair value derivative liabilities	15,816	15,801
Equity contracts [Member] | OTC [Member]
Derivative Assets
Fair value derivative assets	6,132	7,747
Derivative Liabilities
Fair value derivative liabilities	9,730	11,068
Equity contracts [Member] | Exchange traded [Member]
Derivative Assets
Fair value derivative assets	7,493	4,759
Derivative Liabilities
Fair value derivative liabilities	6,086	4,733
Foreign exchange contracts [Member]
Derivative Assets
Fair value derivative assets	6,335	8,088
Derivative Liabilities
Fair value derivative liabilities	6,221	7,603
Foreign exchange contracts [Member] | OTC [Member]
Derivative Assets
Fair value derivative assets	6,335	8,088
Derivative Liabilities
Fair value derivative liabilities	6,221	7,603
Credit contracts [Member]
Derivative Assets
Fair value derivative assets	32	55
Derivative Liabilities
Fair value derivative liabilities	31	43
Credit contracts [Member] | OTC [Member]
Derivative Assets
Fair value derivative assets	32	55
Derivative Liabilities
Fair value derivative liabilities	$ 31	$ 43

Derivatives, Gains (Losses) Rec

Derivatives, Gains (Losses) Recognized on Fair Value Hedging Relationships (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Line Items Presented in the Consolidated Statement of Income and Other Comprehensive Income [Abstract]
Debt securities	$ 9,253	$ 11,234		$ 14,955
Deposits	(388)	(2,804)		(8,635)
Long-term debt	(3,173)	(4,471)		(7,350)
Other	3,734	3,847	[1]	7,457	[1]
Total recorded in OCI, Derivative gains (losses)	212	198		275
Derivatives (Textual) [Abstract]
Deferred net gains (losses) on derivatives in other comprehensive income	$ (32)
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	$ 81	(31)		(3)
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
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	81	(31)		(3)
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	(183)	(229)		50
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	(253)	(338)		0
Recognized on derivatives	1,129	(1,261)		(2,082)
Recognized on hedged items	(1,117)	1,317		2,096
Total gains (losses) (pre-tax) on interest rate contracts	(241)	(282)		14
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	57	52		35
Recognized on derivatives	4	(1)		(5)
Recognized on hedged items	(3)	2		6
Total gains (losses) (pre-tax) on interest rate contracts	58	53		36
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	286	513		79
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	289	503		58
Recognized on derivatives	(336)	161		463
Recognized on hedged items	333	(151)		(442)
Total gains (losses) (pre-tax) on interest rate contracts	286	513		79
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
Recognized on derivatives	0	0		0
Recognized on hedged items	0	0		0
Total gains (losses) (pre-tax) on interest rate contracts	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	2,005	1,773		(204)
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	2,136	1,704		169
Recognized on derivatives	(6,351)	6,691		5,001
Recognized on hedged items	6,288	(6,543)		(4,910)
Total gains (losses) (pre-tax) on interest rate contracts	2,073	1,852		260
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	10	(139)		(483)
Recognized on derivatives	(516)	261		308
Recognized on hedged items	438	(201)		(289)
Total gains (losses) (pre-tax) on interest rate contracts	(68)	(79)		(464)
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	(17)	16		(8)
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
Recognized on derivatives	0	0		0
Recognized on hedged items	0	0		0
Total gains (losses) (pre-tax) on interest rate contracts	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
Recognized on derivatives	(99)	1,591		(358)
Recognized on hedged items	82	(1,575)		350
Total gains (losses) (pre-tax) on interest rate contracts	(17)	16		(8)
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	2,091	2,073		(83)
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	2,172	1,869		227
Recognized on derivatives	(5,558)	5,591		3,382
Recognized on hedged items	5,504	(5,377)		(3,256)
Total gains (losses) (pre-tax) on interest rate contracts	2,118	2,083		353
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	67	(87)		(448)
Recognized on derivatives	(611)	1,851		(55)
Recognized on hedged items	517	(1,774)		67
Total gains (losses) (pre-tax) on interest rate contracts	$ (27)	$ (10)		$ (436)
[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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Line Items Presented in the Consolidated Statement of Income and Other Comprehensive Income [Abstract]
Loans	$ 28,634	$ 34,230	[1]	$ 44,218	[1]
Long-term debt	(3,173)	(4,471)		(7,350)
Total recorded in OCI, Derivative gains (losses)	212	198		275
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	143	219		299
Net unrealized gains (losses) (pre-tax) recognized in OCI	(12)	10		(21)
Total gains (losses) (pre-tax) recognized on cash flow hedges	131	229		278
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	137	211		290
Net unrealized gains (losses) (pre-tax) recognized in OCI	7	0		0
Total gains (losses) (pre-tax) recognized on cash flow hedges	144	211		290
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	6	8		9
Net unrealized gains (losses) (pre-tax) recognized in OCI	(19)	10		(21)
Total gains (losses) (pre-tax) recognized on cash flow hedges	(13)	18		(12)
Cash flow hedging [Member] | Loans [Member]
Gains (losses) recognized on cash flow hedging relationships [Abstract]
Total gains (losses) (pre-tax) on interest rate contracts	(137)	(215)		(291)
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	(137)	(215)		(291)
Total gains (losses) (pre-tax) on interest rate contracts	(137)	(215)		(291)
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
Total gains (losses) (pre-tax) on interest rate contracts	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	(6)	(4)		(8)
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	0	4		1
Total gains (losses) (pre-tax) on interest rate contracts	0	4		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	(6)	(8)		(9)
Total gains (losses) (pre-tax) on interest rate contracts	(6)	(8)		(9)
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	(143)	(219)		(299)
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	(137)	(211)		(290)
Total gains (losses) (pre-tax) on interest rate contracts	(137)	(211)		(290)
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	(6)	(8)		(9)
Total gains (losses) (pre-tax) on interest rate contracts	$ (6)	$ (8)		$ (9)
[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	Dec. 31, 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	$ 24,144	$ 29,538
Hedge accounting basis adjustment, assets	(559)	827
Hedged items currently designated [Member] | Deposits [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	(10,187)	(22,384)
Hedge accounting basis adjustment, liabilities	(144)	(477)
Hedged items currently designated [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of liabilities	(138,801)	(156,907)
Hedge accounting basis adjustment, liabilities	(5,192)	(12,466)
Not designated as hedging instrument [Member] | Available-for-sale debt securities [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Carrying amount of assets	17,962	17,091
Hedge accounting basis adjustment, assets	965	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	0	(14,468)
Hedge accounting basis adjustment, liabilities	0	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	873	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	(2,700)	(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	136	205
Re-designated as hedging instrument [Member] | Long-term debt [Member]
Fair Value Hedging Basis Adjustment [Abstract]
Hedge accounting basis adjustment, liabilities	$ 188	$ 130

Derivatives, Derivatives Not De

Derivatives, Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivatives (Textual) [Abstract]
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	$ (1,208)	$ 4,607	$ 2,318
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments	1,200	(1,800)	(141)
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	(2,092)	1,768	(4,959)
Derivatives (Textual) [Abstract]
Gains (losses) on derivatives used to hedge residential mortgage servicing rights	(1,200)	4,600	2,300
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	11	4,751	2,595
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	(1,970)	(2,090)	(6,987)
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	(133)	(893)	(567)
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	(611)	(778)	0
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	755	1,061	(26)
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	(62)	2,694	2,178
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	494	(1,192)	(2,122)
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	335	(455)	(77)
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	(12)	14	(5)
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	(51)	2,787	2,177
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	(51)	2,787	2,177
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
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
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
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	495	(1,167)	(2,120)
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
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	495	(1,167)	(2,120)
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
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
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	311	(559)	(83)
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	(11)	(93)	1
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	(1)	(25)	(2)
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	335	(455)	(77)
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	(12)	14	(5)
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	(611)	(778)	0
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
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	(611)	(778)	0
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
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
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	(2,847)	707	(4,933)
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	1,279	943	323
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	133	446	164
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	(4,993)	(770)	(5,347)
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	827	89	47
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	(93)	(1)	(120)
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	62	1,964	418
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	62	1,964	418
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
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
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
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
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	(2,465)	(923)	(4,867)
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	1,217	(1,021)	(95)
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	133	446	164
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	(4,549)	(436)	(4,863)
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	827	89	47
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	(93)	(1)	(120)
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	(444)	(334)	(484)
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
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
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	(444)	(334)	(484)
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
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
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
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
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
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
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
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

Derivatives, Sold Credit Deriva

Derivatives, Sold Credit Derivatives (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	$ 14,789	$ 12,085
Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	7,994	8,067
Credit default swaps [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	8,033	5,707
Credit default swaps [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	1,982	1,805
Risk participation swaps [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	6,756	6,378
Risk participation swaps [Member] | Non-investment grade [Member]
Details of Sold and Purchased Credit Derivatives [Abstract]
Notional amount, Protection sold	$ 6,012	$ 6,262

Derivatives Derivatives, Credit

Derivatives Derivatives, Credit-Risk Contingent Feature Textuals (Details) - USD ($) $ in Billions	Dec. 31, 2021	Dec. 31, 2020
Derivatives [Abstract]
Net derivative liabilities with credit-risk contingent features	$ 12.2	$ 10.5
Collateral posted	11	9
Additional collateral to be posted upon a below investment grade credit rating	$ 1.2	$ 1.5

Fair Value, Assets and Liabilit

Fair Value, Assets and Liabilities, Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets:
Trading debt securities	$ 88,265	$ 75,095
Available-for-sale debt securities	177,244	220,392
Mortgage servicing rights	6,920	6,125
Gross derivative asset	45,876	54,559
Marketable equity securities	39,098	34,009
Equity securities	72,886	60,008
Liabilities:
Total derivative liabilities (gross)	(41,238)	(50,082)
Short-sale trading liabilities	(20,685)	(22,441)
Interest rate contracts [Member]
Assets:
Gross derivative asset	20,287	32,125
Liabilities:
Total derivative liabilities (gross)	(16,874)	(25,174)
Commodity contracts [Member]
Assets:
Gross derivative asset	5,597	1,785
Liabilities:
Total derivative liabilities (gross)	(2,296)	(1,461)
Equity contracts [Member]
Assets:
Gross derivative asset	13,625	12,506
Liabilities:
Total derivative liabilities (gross)	(15,816)	(15,801)
Foreign exchange contracts [Member]
Assets:
Gross derivative asset	6,335	8,088
Liabilities:
Total derivative liabilities (gross)	(6,221)	(7,603)
Credit contracts [Member]
Assets:
Gross derivative asset	32	55
Liabilities:
Total derivative liabilities (gross)	(31)	(43)
Securities of U.S. Treasury and federal agencies [Member]
Assets:
Available-for-sale debt securities	39,661	22,159
Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	71	16,813
Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	16,917	19,406
Federal agency mortgage-backed securities [Member]
Assets:
Available-for-sale debt securities	105,886	139,070
Non-agency mortgage-backed securities [Member]
Assets:
Available-for-sale debt securities	4,532	3,729
Collateralized loan obligations [Member]
Assets:
Available-for-sale debt securities	5,708	9,018
Other debt securities [Member]
Assets:
Available-for-sale debt securities	4,469	10,197
Fair value, recurring [Member]
Assets:
Loans held for sale	15,895	18,806
Gross derivative asset	52,908	65,682
Total assets prior to derivative netting	380,249	419,955
Fair value assets, Derivative netting	(31,430)	(39,836)
Total assets after derivative netting	348,819	380,119
Liabilities:
Total derivative liabilities (gross)	(45,956)	(58,065)
Short-sale trading liabilities	(20,685)	(22,441)
Total liabilities prior to derivative netting	(66,641)	(80,506)
Fair value liabilities, Derivative netting	36,532	41,556
Total liabilities after derivative netting	(30,109)	(38,950)
Fair value, recurring [Member] | Residential mortgage [Member]
Assets:
Mortgage servicing rights	6,920	6,125
Fair value, recurring [Member] | Interest rate contracts [Member]
Assets:
Gross derivative asset	22,538	36,063
Liabilities:
Total derivative liabilities (gross)	(17,803)	(26,302)
Fair value, recurring [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	5,965	2,036
Liabilities:
Total derivative liabilities (gross)	(2,417)	(1,543)
Fair value, recurring [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	17,771	18,885
Liabilities:
Total derivative liabilities (gross)	(19,021)	(22,006)
Fair value, recurring [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	6,588	8,603
Liabilities:
Total derivative liabilities (gross)	(6,672)	(8,156)
Fair value, recurring [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	46	95
Liabilities:
Total derivative liabilities (gross)	(43)	(58)
Fair value, recurring [Member] | Debt securities [Member]
Assets:
Trading debt securities	88,265	75,095
Available-for-sale debt securities	177,244	220,392
Fair value, recurring [Member] | Securities of U.S. Treasury and federal agencies [Member]
Assets:
Trading debt securities	29,856	35,257
Available-for-sale debt securities	39,661	22,159
Fair value, recurring [Member] | Non-U.S. government securities [Member]
Assets:
Available-for-sale debt securities	71	16,813
Fair value, recurring [Member] | Securities of U.S. states and political subdivisions [Member]
Assets:
Available-for-sale debt securities	16,917	19,406
Fair value, recurring [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	10,005	10,709
Fair value, recurring [Member] | Federal agency mortgage-backed securities [Member]
Assets:
Trading debt securities	40,350	23,549
Available-for-sale debt securities	105,886	139,070
Fair value, recurring [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	1,542	1,051
Available-for-sale debt securities	4,532	3,729
Fair value, recurring [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	866	682
Available-for-sale debt securities	5,708	9,018
Fair value, recurring [Member] | Other debt securities [Member]
Assets:
Trading debt securities	5,646	3,847
Available-for-sale debt securities	4,469	10,197
Fair value, recurring [Member] | Equity securities [Member]
Assets:
Equity securities	39,017	33,855
Fair value, recurring [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	30,054	24,596
Fair value, recurring [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	8,963	9,259
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Assets:
Loans held for sale	0	0
Gross derivative asset	6,462	4,918
Total assets prior to derivative netting	103,698	83,180
Liabilities:
Total derivative liabilities (gross)	(5,856)	(4,897)
Short-sale trading liabilities	(15,436)	(15,292)
Total liabilities prior to derivative netting	(21,292)	(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	52	11
Liabilities:
Total derivative liabilities (gross)	(28)	(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	6,402	4,888
Liabilities:
Total derivative liabilities (gross)	(5,820)	(4,860)
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	8	19
Liabilities:
Total derivative liabilities (gross)	(8)	(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	27,607	32,060
Available-for-sale debt securities	39,661	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	27,607	32,060
Available-for-sale debt securities	39,661	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 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] | 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	0	38
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity securities [Member]
Assets:
Equity securities	29,968	24,005
Fair value, recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	29,968	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	14,862	17,572
Gross derivative asset	44,153	58,589
Total assets prior to derivative netting	256,968	314,841
Liabilities:
Total derivative liabilities (gross)	(37,510)	(51,164)
Short-sale trading liabilities	(5,249)	(7,149)
Total liabilities prior to derivative netting	(42,759)	(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	22,296	35,590
Liabilities:
Total derivative liabilities (gross)	(17,712)	(26,259)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	5,902	1,997
Liabilities:
Total derivative liabilities (gross)	(2,351)	(1,503)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	9,350	12,384
Liabilities:
Total derivative liabilities (gross)	(10,753)	(15,219)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Foreign exchange contracts [Member]
Assets:
Gross derivative asset	6,573	8,573
Liabilities:
Total derivative liabilities (gross)	(6,654)	(8,134)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	32	45
Liabilities:
Total derivative liabilities (gross)	(40)	(49)
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Debt securities [Member]
Assets:
Trading debt securities	60,417	42,862
Available-for-sale debt securities	137,397	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	2,249	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	71	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	16,832	19,182
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	9,987	10,696
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Federal agency mortgage-backed securities [Member]
Assets:
Trading debt securities	40,350	23,549
Available-for-sale debt securities	105,886	139,070
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	1,531	1,039
Available-for-sale debt securities	4,522	3,697
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	655	534
Available-for-sale debt securities	5,708	9,018
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Other debt securities [Member]
Assets:
Trading debt securities	5,645	3,847
Available-for-sale debt securities	4,378	7,421
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Equity securities [Member]
Assets:
Equity securities	139	617
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	82	596
Fair value, recurring [Member] | Fair value, inputs, level 2 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	57	21
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member]
Assets:
Loans held for sale	1,033	1,234
Gross derivative asset	2,293	2,175
Total assets prior to derivative netting	19,583	21,934
Liabilities:
Total derivative liabilities (gross)	(2,590)	(2,004)
Short-sale trading liabilities	0	0
Total liabilities prior to derivative netting	(2,590)	(2,004)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Residential mortgage [Member]
Assets:
Mortgage servicing rights	6,920	6,125
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Interest rate contracts [Member]
Assets:
Gross derivative asset	190	462
Liabilities:
Total derivative liabilities (gross)	(63)	(16)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Commodity contracts [Member]
Assets:
Gross derivative asset	63	39
Liabilities:
Total derivative liabilities (gross)	(66)	(40)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity contracts [Member]
Assets:
Gross derivative asset	2,019	1,613
Liabilities:
Total derivative liabilities (gross)	(2,448)	(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)	(10)	(12)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Credit contracts [Member]
Assets:
Gross derivative asset	14	50
Liabilities:
Total derivative liabilities (gross)	(3)	(9)
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Debt securities [Member]
Assets:
Trading debt securities	241	173
Available-for-sale debt securities	186	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	85	224
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Corporate debt securities [Member]
Assets:
Trading debt securities	18	13
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Federal 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 3 [Member] | Non-agency mortgage-backed securities [Member]
Assets:
Trading debt securities	11	12
Available-for-sale debt securities	10	32
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Collateralized loan obligations [Member]
Assets:
Trading debt securities	211	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	91	2,738
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Equity securities [Member]
Assets:
Equity securities	8,910	9,233
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Marketable equity securities [Member]
Assets:
Marketable equity securities	4	5
Fair value, recurring [Member] | Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	8,906	9,228
Fair value, recurring [Member] | Fair value measured at net asset value per share [Member] | Nonmarketable equity securities [Member]
Assets:
Nonmarketable equity securities	$ 81	$ 154

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		12 Months Ended
	Dec. 31, 2021	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value Disclosures, Textual [Abstract]
Transfers from available-for-sale debt securities to held-to-maturity debt securities			$ (55,993)	$ (31,815)	$ (13,833)
Trading debt securities [Member]
Assets:
Balance, beginning of period			173	223	290
Net gains (losses)			7	(53)	(31)
Purchases			518	600	391
Sales			(448)	(589)	(385)
Settlements			(12)	(12)	(34)
Transfers into Level 3			34	115	1
Transfers out of Level 3			(31)	(111)	(9)
Balance, end of period	$ 241		241	173	223
Net unrealized gains (losses) related to assets and liabilities held at period end			(8)	(36)	(31)
Available-for-sale debt securities [Member]
Assets:
Balance, beginning of period			2,994	1,565	2,044
Net gains (losses)			21	(34)	(6)
Purchases			809	43	475
Sales			(112)	(68)	(9)
Settlements			(278)	(263)	(743)
Transfers into Level 3			353	2,255	6
Transfers out of Level 3			(3,601)	(504)	(202)
Balance, end of period	186		186	2,994	1,565
Net unrealized gains (losses) related to assets and liabilities held at period end			(4)	1	(4)
Fair Value Disclosures, Textual [Abstract]
Total net gains (losses) included in other comprehensive income			41	0	(40)
Transfers from available-for-sale debt securities to held-to-maturity debt securities	(1,800)
Securities transferred to loans		$ 153
Net unrealized gains (losses) related to assets and liabilities held at period end and included in other comprehensive income			(1)	57
Loans held for sale [Member]
Assets:
Balance, beginning of period			1,234	1,214	1,057
Net gains (losses)			(25)	(96)	56
Purchases			477	1,312	356
Sales			(534)	(586)	(237)
Settlements			(377)	(323)	(263)
Transfers into Level 3			394	1,927	354
Transfers out of Level 3			(136)	(2,214)	(109)
Balance, end of period	1,033		1,033	1,234	1,214
Net unrealized gains (losses) related to assets and liabilities held at period end			(26)	(38)	51
Mortgage servicing rights [Member] | Residential mortgage [Member]
Assets:
Balance, beginning of period			6,125	11,517	14,649
Net gains (losses)			(842)	(7,068)	(4,779)
Purchases			1,645	1,707	1,933
Sales			(8)	(32)	(286)
Settlements			0	1	0
Transfers into Level 3			0	0	0
Transfers out of Level 3			0	0	0
Balance, end of period	6,920		6,920	6,125	11,517
Net unrealized gains (losses) related to assets and liabilities held at period end			1,170	(4,693)	(2,569)
Derivative [Member]
Assets and Liabilities:
Balance, beginning of period			171	(60)	21
Net gains (losses)			(555)	1,695	(162)
Purchases			3	8	13
Sales			(3)	3	(12)
Settlements			116	(1,471)	28
Transfers into Level 3			(233)	0	8
Transfers out of Level 3			204	(4)	44
Balance, end of period	(297)		(297)	171	(60)
Net unrealized gains (losses) related to assets and liabilities held at period end			(377)	326	75
Derivative [Member] | Interest rate contracts [Member]
Assets and Liabilities:
Balance, beginning of period			446	214	25
Net gains (losses)			27	2,074	585
Purchases			0	0	0
Sales			0	0	0
Settlements			(340)	(1,842)	(396)
Transfers into Level 3			(5)	0	0
Transfers out of Level 3			(1)	0	0
Balance, end of period	127		127	446	214
Net unrealized gains (losses) related to assets and liabilities held at period end			(75)	334	249
Derivative [Member] | Equity contracts [Member]
Assets and Liabilities:
Balance, beginning of period			(314)	(269)	(17)
Net gains (losses)			(468)	(316)	(571)
Purchases			0	0	0
Sales			0	0	0
Settlements			379	298	292
Transfers into Level 3			(228)	(22)	6
Transfers out of Level 3			202	(5)	21
Balance, end of period	(429)		(429)	(314)	(269)
Net unrealized gains (losses) related to assets and liabilities held at period end			(266)	(19)	(186)
Derivative [Member] | Other contract [Member]
Assets and Liabilities:
Balance, beginning of period			39	(5)	13
Net gains (losses)			(114)	(63)	(176)
Purchases			3	8	13
Sales			(3)	3	(12)
Settlements			77	73	132
Transfers into Level 3			0	22	2
Transfers out of Level 3			3	1	23
Balance, end of period	5		5	39	(5)
Net unrealized gains (losses) related to assets and liabilities held at period end			(36)	11	12
Securities [Member] | Equity securities [Member]
Assets:
Balance, beginning of period			9,233	7,850	5,468
Net gains (losses)			(267)	1,369	2,383
Purchases			1	2	0
Sales			(68)	0	(1)
Settlements			0	0	0
Transfers into Level 3			11	23	12
Transfers out of Level 3			0	(11)	(12)
Balance, end of period	$ 8,910		8,910	9,233	7,850
Net unrealized gains (losses) related to assets and liabilities held at period end			$ (316)	$ 1,370	$ 2,386

Fair Value, Assets and Liabil_3

Fair Value, Assets and Liabilities, Valuation Techniques - Recurring Basis (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)$ / loan	Dec. 31, 2020USD ($)$ / loan
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 6,920	$ 6,125
Fair value, recurring [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	15,895	18,806
Fair Value Disclosures, Textual [Abstract]
Total assets prior to derivative netting	380,249	419,955
Total liabilities prior to derivative netting	(66,641)	(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	1,033	1,234
Insignificant Level 3 assets, net of liabilities	9	44
Assets, fair value disclosure, net of liabilities	16,993	19,930
Fair Value Disclosures, Textual [Abstract]
Total assets prior to derivative netting	19,583	21,934
Total liabilities prior to derivative netting	(2,590)	(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	136	2,126
Loans held for sale	1,033	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	$ 11	$ 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	0.016	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	0.125	0.147
Loans held for sale, measurement input	0.119	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	0.055	0.036
Loans held for sale, measurement input	0.051	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	$ 280	$ 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	(0.302)	(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	0.192	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	(0.046)	(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	0.292	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	0.012	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	0.469	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	0.154	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	0.075	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	0.182	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	0.131	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		$ 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		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
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		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)	$ 87	$ 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	0.050	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	0.021	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	0.187	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)	$ 40	$ 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	0.168	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	(0.00748)	(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	0.01460	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	0.00509	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)	$ 253	$ 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)	$ (682)	$ (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	6 months	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	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 1 month 6 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	(0.102)	(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	(0.097)	(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	0.232	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	0.720	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	0.291	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	54	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	199	252
Fair value, recurring [Member] | Residential mortgage [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortgage servicing rights	$ 6,920	$ 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	6,920	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	$ 6,920	$ 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	0.058	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	0.088	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	0.064	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	54	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	585	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	106	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	0.125	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	0.211	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	0.147	0.199
Fair value, recurring [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 8,963	$ 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	8,906	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	$ 8,906	$ 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	(0.216)	(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	(0.077)	(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	(0.155)	(0.138)

Fair Value, Assets and Liabil_4

Fair Value, Assets and Liabilities, Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	$ 6,920	$ 6,125
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	5,318	5,617
Loans	856	1,780
Other assets	1,548	1,778
Total assets at fair value on a nonrecurring basis	15,316	12,872
Nonrecurring [Member] | Nonmarketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmarketable equity securities	7,027	3,187
Nonrecurring [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	476	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	380	395
Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	3,911	2,672
Loans	856	1,780
Other assets	1,373	1,350
Total assets at fair value on a nonrecurring basis	12,402	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	6,262	2,397
Nonrecurring [Member] | Level 2 [Member] | Total Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	476	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	380	395
Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	1,407	2,945
Loans	0	0
Other assets	175	428
Total assets at fair value on a nonrecurring basis	2,914	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	765	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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans held for sale	$ 33	$ 12	$ 11
Loans	(794)	(1,014)	(498)
Nonmarketable equity securities	4,407	435	322
Premises and equipment	0	0	(170)
Other assets	(388)	(469)	(84)
Total	3,291	(1,073)	(419)
Total Commercial [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	(230)	(754)	(291)
Mortgage servicing rights	33	(37)	0
Total Consumer [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis Increase (Decrease) [Line Items]
Loans	$ (564)	$ (260)	$ (207)

Fair Value, Assets and Liabil_6

Fair Value, Assets and Liabilities, Valuation Techniques - Nonrecurring Basis (Details) - Nonrecurring [Member] $ in Millions	Dec. 31, 2021USD ($)$ / loan	Dec. 31, 2020USD ($)uSDollarPerMMBtuuSDollarPerBarrel$ / loan
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	$ 5,318	$ 5,617
Other assets	1,548	1,778
Total assets at fair value on a nonrecurring basis	15,316	12,872
Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	7,027	3,187
Fair value, inputs, level 3 [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Loans held for sale	1,407	2,945
Other assets	175	428
Total insignificant level 3 assets		19
Total assets at fair value on a nonrecurring basis	2,914	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	1,407	1,628
Other assets	175
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		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	0.002	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	0.783	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	0.256	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	0.002
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	0.120	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	0.033	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	0.045	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	0.004	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	0.456	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	0.048	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	0.054	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	0.389	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	2,771	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		(0.116)
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		(0.018)
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		(0.031)
Fair value, inputs, level 3 [Member] | Nonmarketable equity securities [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Nonmarketable equity securities	$ 765	$ 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	$ 745	$ 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	(0.330)	(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	(0.590)	(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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale, carried at fair value	$ 15,895	$ 18,806
Loans held for sale, Aggregate unpaid principal	15,750	18,217
Loans held for sale, Fair ​value carrying amount less aggregate unpaid principal	145	589
Loans held for sale [Member]
Fair Value Disclosures, Textual [Abstract]
Fair value option, changes in fair value, gain (loss)	$ 2,000	$ 2,700	$ 1,100

Fair Value, Assets and Liabil_8

Fair Value, Assets and Liabilities, Fair Value Estimates for Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Financial assets
Cash and due from banks	$ 24,616	$ 28,236
Interest-earning deposits with banks	209,614	236,376
Federal funds sold and securities purchased under resale agreements	66,223	65,672
Held-to-maturity debt securities	272,022	205,720
Loans held for sale	23,617	36,384
Loans, net	882,904	869,121
Financial liabilities
Deposits	1,482,479	1,404,381
Short-term borrowings	34,409	58,999
Long-term debt	160,689	212,950
Carrying value [Member]
Financial assets
Cash and due from banks	24,616	28,236
Interest-earning deposits with banks	209,614	236,376
Federal funds sold and securities purchased under resale agreements	66,223	65,672
Held-to-maturity debt securities	272,022	205,720
Loans held for sale	7,722	17,578
Loans, net	868,278	853,595
Nonmarketable equity securities	3,584	3,588
Total financial assets	1,452,059	1,410,765
Financial liabilities
Deposits	30,012	52,807
Short-term borrowings	34,409	58,999
Long-term debt	160,660	212,922
Total financial liabilities	225,081	324,728
Fair Value Disclosures, Textual [Abstract]
Deposit liabilities with no defined or contractual maturity	1,500,000	1,400,000
Carrying value [Member] | Finance leases [Member]
Financial liabilities
Long-term debt	26	28
Carrying value [Member] | Commercial lease financing [Member]
Financial assets
Loans, net	14,500	15,400
Estimated fair value [Member]
Financial assets
Cash and due from banks	24,616	28,236
Interest-earning deposits with banks	209,614	236,376
Federal funds sold and securities purchased under resale agreements	66,223	65,672
Held-to-maturity debt securities	272,386	212,307
Loans held for sale	7,929	18,371
Loans, net	883,963	874,097
Nonmarketable equity securities	3,646	3,632
Total financial assets	1,468,377	1,438,691
Financial liabilities
Deposits	30,002	53,261
Short-term borrowings	34,409	58,999
Long-term debt	168,084	220,702
Total financial liabilities	232,495	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	24,616	28,236
Interest-earning deposits with banks	209,452	236,258
Federal funds sold and securities purchased under resale agreements	0	0
Held-to-maturity debt securities	16,825	48,597
Loans held for sale	0	0
Loans, net	0	0
Nonmarketable equity securities	0	0
Total financial assets	250,893	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	162	118
Federal funds sold and securities purchased under resale agreements	66,223	65,672
Held-to-maturity debt securities	252,717	162,777
Loans held for sale	6,300	14,952
Loans, net	63,404	56,270
Nonmarketable equity securities	0	0
Total financial assets	388,806	299,789
Financial liabilities
Deposits	14,401	33,321
Short-term borrowings	34,409	58,999
Long-term debt	166,682	219,321
Total financial liabilities	215,492	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	2,844	933
Loans held for sale	1,629	3,419
Loans, net	820,559	817,827
Nonmarketable equity securities	3,646	3,632
Total financial assets	828,678	825,811
Financial liabilities
Deposits	15,601	19,940
Short-term borrowings	0	0
Long-term debt	1,402	1,381
Total financial liabilities	$ 17,003	$ 21,321

Preferred Stock (Details)

Preferred Stock (Details) $ in Millions	Sep. 15, 2021USD ($)	Jun. 15, 2021USD ($)	Mar. 15, 2021USD ($)	Dec. 31, 2021USD ($)voteshares		Dec. 31, 2020USD ($)shares		Dec. 31, 2019USD ($)	[3]	Jul. 20, 2021USD ($)	Feb. 28, 2021USD ($)	Jan. 31, 2021USD ($)
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				5,386,234		5,557,652
Preferred Stock, shares issued and outstanding | shares				5,323,875		5,496,293
Preferred stock, liquidation preference, value				$ 20,825		$ 21,904
Preferred stock, carrying value				$ 20,057		$ 21,136
ESOP, shares authorized and designated | shares				609,434		822,242
ESOP, shares issued and outstanding | shares				609,434		822,242
ESOP, liquidation preference value				$ 609		$ 822
ESOP, carrying value				$ 609		822
Detail of Preferred Stock [Abstract]
Voting rights				If issued, preference shares would be limited to one vote per share
Preferred stock redeemed, value				$ 6,676	[1]	$ 3,602	[2]	$ 1,550
Preferred stock, no voting rights [Member]
Detail of Preferred Stock [Abstract]
Preferred shares authorized | shares				20,000,000
Preferred stock, par or stated value				$ 0
Preferred stock, voting rights [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, shares issued and outstanding | shares				0
Detail of Preferred Stock [Abstract]
Preferred shares authorized | shares				4,000,000
Number of votes per share | vote				1
Preferred stock, par or stated value				$ 0
Dividend Equalization Preferred Shares (DEP) [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				97,000		97,000
Preferred Stock, shares issued and outstanding | shares				96,546		96,546
Preferred stock, liquidation preference, value				$ 0		$ 0
Preferred stock, carrying value				$ 0		$ 0
Series I - Floating Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				0		25,010
Preferred Stock, shares issued and outstanding | shares				0		25,010
Preferred stock, liquidation preference, value				$ 0		$ 2,501
Preferred stock, carrying value				$ 0		$ 2,501
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
Series L - 7.50% Non-Cumulative Perpetual Convertible Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				4,025,000		4,025,000
Preferred Stock, shares issued and outstanding | shares				3,967,995		3,967,995
Preferred stock, liquidation preference, value				$ 3,968		$ 3,968
Preferred stock, carrying value				$ 3,200		$ 3,200
Preferred stock, dividend rate (percent)				7.50%		7.50%
Detail of Preferred Stock [Abstract]
Number of common stock shares per preferred share | shares				6.3814		6.3814
Series N - 5.20% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				0		30,000
Preferred Stock, shares issued and outstanding | shares				0		30,000
Preferred stock, liquidation preference, value				$ 0		$ 750
Preferred stock, carrying value				$ 0		$ 750
Preferred stock, dividend rate (percent)						5.20%
Detail of Preferred Stock [Abstract]
Preferred stock redeemed, value		$ 350	$ 400
Series O - 5.125% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				0		27,600
Preferred Stock, shares issued and outstanding | shares				0		26,000
Preferred stock, liquidation preference, value				$ 0		$ 650
Preferred stock, carrying value				$ 0		$ 650
Preferred stock, dividend rate (percent)						5.125%
Series P - 5.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				0		26,400
Preferred Stock, shares issued and outstanding | shares				0		25,000
Preferred stock, liquidation preference, value				$ 0		$ 625
Preferred stock, carrying value				$ 0		$ 625
Preferred stock, dividend rate (percent)						5.25%
Series Q - 5.85% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				69,000		69,000
Preferred Stock, shares issued and outstanding | shares				69,000		69,000
Preferred stock, liquidation preference, value				$ 1,725		$ 1,725
Preferred stock, carrying value				$ 1,725		$ 1,725
Preferred stock, dividend rate (percent)				5.85%		5.85%
Series R - 6.625% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				34,500		34,500
Preferred Stock, shares issued and outstanding | shares				33,600		33,600
Preferred stock, liquidation preference, value				$ 840		$ 840
Preferred stock, carrying value				$ 840		$ 840
Preferred stock, dividend rate (percent)				6.625%		6.625%
Series S - 5.900% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				80,000		80,000
Preferred Stock, shares issued and outstanding | shares				80,000		80,000
Preferred stock, liquidation preference, value				$ 2,000		$ 2,000
Preferred stock, carrying value				$ 2,000		$ 2,000
Preferred stock, dividend rate (percent)				5.90%		5.90%
Series U - 5.875% Fixed-to-Floating Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				80,000		80,000
Preferred Stock, shares issued and outstanding | shares				80,000		80,000
Preferred stock, liquidation preference, value				$ 2,000		$ 2,000
Preferred stock, carrying value				$ 2,000		$ 2,000
Preferred stock, dividend rate (percent)				5.875%		5.875%
Series W - 5.700% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				0		40,000
Preferred Stock, shares issued and outstanding | shares				0		40,000
Preferred stock, liquidation preference, value				$ 0		$ 1,000
Preferred stock, carrying value				$ 0		$ 1,000
Preferred stock, dividend rate (percent)						5.70%
Series X - 5.500% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				0		46,000
Preferred Stock, shares issued and outstanding | shares				0		46,000
Preferred stock, liquidation preference, value				$ 0		$ 1,150
Preferred stock, carrying value				$ 0		$ 1,150
Preferred stock, dividend rate (percent)						5.50%
Series Y - 5.625% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				27,600		27,600
Preferred Stock, shares issued and outstanding | shares				27,600		27,600
Preferred stock, liquidation preference, value				$ 690		$ 690
Preferred stock, carrying value				$ 690		$ 690
Preferred stock, dividend rate (percent)				5.625%		5.625%
Series Z - 4.75% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				80,500		80,500
Preferred Stock, shares issued and outstanding | shares				80,500		80,500
Preferred stock, liquidation preference, value				$ 2,013		$ 2,013
Preferred stock, carrying value				$ 2,013		$ 2,013
Preferred stock, dividend rate (percent)				4.75%		4.75%
Series AA - 4.70% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				46,800		46,800
Preferred Stock, shares issued and outstanding | shares				46,800		46,800
Preferred stock, liquidation preference, value				$ 1,170		$ 1,170
Preferred stock, carrying value				$ 1,170		$ 1,170
Preferred stock, dividend rate (percent)				4.70%		4.70%
Series BB - 3.90% Fixed-Reset Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				140,400		0
Preferred Stock, shares issued and outstanding | shares				140,400		0
Preferred stock, liquidation preference, value				$ 3,510		$ 0
Preferred stock, carrying value				$ 3,510		$ 0
Preferred stock, dividend rate (percent)				3.90%
Detail of Preferred Stock [Abstract]
Preferred stock, par or stated value												$ 3,500
Series CC - 4.375% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				46,000		0
Preferred Stock, shares issued and outstanding | shares				42,000		0
Preferred stock, liquidation preference, value				$ 1,050		$ 0
Preferred stock, carrying value				$ 1,050		$ 0
Preferred stock, dividend rate (percent)				4.375%
Detail of Preferred Stock [Abstract]
Preferred stock, par or stated value											$ 1,050
Series DD - 4.25% Non-Cumulative Perpetual Class A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized and designated | shares				50,000		0
Preferred Stock, shares issued and outstanding | shares				50,000		0
Preferred stock, liquidation preference, value				$ 1,250		$ 0
Preferred stock, carrying value				$ 1,250		$ 0
Preferred stock, dividend rate (percent)				4.25%
Detail of Preferred Stock [Abstract]
Preferred stock, par or stated value										$ 1,250
Preferred Stock Series I, P, W and N [Member]
Detail of Preferred Stock [Abstract]
Preferred stock redeemed, value			$ 4,500
Preferred Stock Series O and X [Member]
Detail of Preferred Stock [Abstract]
Preferred stock redeemed, value	$ 1,800
[1]	Represents the impact of the redemption of Preferred Stock, Series I, Series P and Series W, in first quarter 2021; Preferred Stock, Series N, in second quarter 2021; and Preferred Stock, Series O and Series X, in third quarter 2021. For additional information, see Note 16 (Preferred Stock).
[2]	Represents the impact of the redemption of the remaining preferred stock, Series K, in first quarter 2020, and Series T and Series V in fourth quarter 2020.
[3]	Represents the impact of the partial redemption of preferred stock, Series K, in third quarter 2019.

ESOP Preferred Stock (Details)

ESOP Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Additional paid-in capital included related to ESOP preferred stock	$ 37	$ 53
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	609,434	822,242
Carrying value	$ 609	$ 822
Unearned ESOP shares	$ (646)	$ (875)
Employee Stock Ownership Plan Preferred Stock 2018 [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Shares issued and outstanding	189,225	221,945
Carrying value	$ 189	$ 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	135,135	163,210
Carrying value	$ 135	$ 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	128,380	162,450
Carrying value	$ 128	$ 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	68,106	92,904
Carrying value	$ 68	$ 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	62,420	99,151
Carrying value	$ 63	$ 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	26,168	61,948
Carrying value	$ 26	$ 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	0	20,634
Carrying value	$ 0	$ 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%
Employee Stock Ownership Plan Preferred Stock 2012 [Member] | Maximum [Member]
Detail of Employee Stock Ownership Plan Preferred Stock [Abstract]
Adjustable dividend rate		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

Common Stock and Stock Plans, C

Common Stock and Stock Plans, Common Stock Shares Reserved, Issued and Authorized (Details) - shares	Dec. 31, 2021	Dec. 31, 2020
Reserved, Issued and Authorized Common Stock [Abstract]
Total shares reserved	429,005,506
Shares issued	5,481,811,474	5,481,811,474
Shares not reserved or issued	3,089,183,020
Total shares authorized	9,000,000,000	9,000,000,000
Dividend reinvestment and common stock purchase plans [Member]
Reserved, Issued and Authorized Common Stock [Abstract]
Total shares reserved	9,190,147
Director plans [Member]
Reserved, Issued and Authorized Common Stock [Abstract]
Total shares reserved	173,238
Stock plans [Member]
Reserved, Issued and Authorized Common Stock [Abstract]
Total shares reserved	353,806,684
Convertible securities and warrants [Member]
Reserved, Issued and Authorized Common Stock [Abstract]
Total shares reserved	65,835,437

Common Stock and Stock Plans, S

Common Stock and Stock Plans, Stock Incentive Compensation Expense (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allocation of Stock Incentive Compensation Expense and Related Recognized Tax Benefit [Abstract]
RSRs	$ 931	$ 732	$ 1,109
Performance shares	74	(110)	108
Total stock incentive compensation expense	1,005	622	1,217
Related recognized tax benefit	$ 248	$ 154	$ 301
Total number of shares of common stock available for grant under plans	147

Common Stock and Stock Plans,_2

Common Stock and Stock Plans, Summary of Restricted Share Rights and Restricted Share Awards (Details) - Restricted share rights [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of Restricted Share Rights and Restricted Share Awards [Abstract]
Nonvested at January 1, 2021 (in shares)	46,231,770
Granted (in shares)	31,143,741
Vested (in shares)	(21,954,589)
Canceled or forfeited (in shares)	(3,816,743)
Nonvested at December 31, 2021 (in shares)	51,604,179	46,231,770
Weighted-  average  grant-date  fair value
Nonvested at January 1, 2021 (in dollars per share)	$ 46.30
Granted (in dollars per share)	32.99	$ 42.53	$ 49.32
Vested (in dollars per share)	48.28
Canceled or forfeited (in dollars per share)	38.76
Nonvested at December 31, 2021 (in dollars per share)	$ 37.98	$ 46.30
Cost amount to holders of incentive compensation share plans	$ 0
Unrecognized compensation cost related to nonvested awards	$ 879,000,000
Expected weighted-average period to recognize compensation costs related to awards	2 years 4 months 24 days
Fair value of RSRs vested	$ 902,000,000	$ 981,000,000	$ 773,000,000
Long-term incentive compensation plans [Member] | Minimum [Member]
Weighted-  average  grant-date  fair value
Award vesting period	3 years
Long-term incentive compensation plans [Member] | Maximum [Member]
Weighted-  average  grant-date  fair value
Award vesting period	5 years

Common Stock and Stock Plans,_3

Common Stock and Stock Plans, Summary of Performance Awards (Details) - Performance share awards [Member] - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of Performance Awards [Abstract]
Nonvested at January 1, 2021 (in shares)	5,553,608
Granted (in shares)	1,414,431
Vested (in shares)	(791,681)
Canceled or forfeited (in shares)	(1,493,389)
Nonvested at December 31, 2021 (in shares)	4,682,969	5,553,608
Weighted-  average  grant-date  fair value
Nonvested at January 1, 2021 (in dollars per share)	$ 45.45
Granted (in dollars per share)	32.76	$ 40.39	$ 49.26
Vested (in dollars per share)	55.15
Canceled or forfeited (in dollars per share)	55.95
Nonvested at December 31, 2021 (in dollars per share)	$ 36.63	$ 45.45
Cost amount to holders of incentive compensation share plans	$ 0
Award vesting period	3 years
Future vesting amount, minimum (percent)	0.00%
Future vesting amount option one, maximum (percent)	125.00%
Future vesting amount option two, maximum (percent)	150.00%
Unrecognized compensation cost related to nonvested performance awards	$ 29
Expected weighted-average period to recognize compensation costs related to awards	1 year 10 months 24 days
Fair value of awards vested	$ 31	$ 35	$ 82

Common Stock and Stock Plans,_4

Common Stock and Stock Plans, Stock Option Plans (Details) - Incentive compensation plans [Member] - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options issued	0	0	0
Stock options exercisable and outstanding, Number	0	0

Common Stock and Stock Plans, E

Common Stock and Stock Plans, Employee Stock Ownership Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Common stock [Member]
Employee Stock Ownership Plan [Abstract]
Allocated shares (common)	149,638,081	155,810,091	138,978,383
Dividends paid to ESOP	$ 74	$ 155	$ 233
Preferred stock Unreleased [Member]
Employee Stock Ownership Plan [Abstract]
Unreleased shares (preferred)	609,434	822,242	1,071,418
Dividends paid to ESOP	$ 66	$ 77	$ 101
Preferred stock Unreleased [Member] | Conversion Value [Member]
Employee Stock Ownership Plan [Abstract]
Unreleased ESOP preferred shares, fair value	609	822	1,072
Preferred stock Unreleased [Member] | Redemption Value [Member]
Employee Stock Ownership Plan [Abstract]
Unreleased ESOP preferred shares, fair value	$ 700	$ 990	$ 1,231

Revenue from Contracts with C_3

Revenue from Contracts with Customers, Revenue by Operating Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	$ 35,779	$ 39,956		$ 47,303
Lending-related fees	1,445	1,381		1,474
Other card fees	504	514		698
Total card fees	4,175	3,544		4,016
Mortgage banking	4,956	3,493		2,715
Net gains (losses) from trading activities	284	1,172		993
Net gains (losses) from equity securities	6,427	665		2,843
Lease income	996	1,245		1,614
Other	2,738	2,602		5,843
Total noninterest income	42,713	34,308		39,529
Total revenue	78,492	74,264		86,832
Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	553	873		140
Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	5,475	5,221		5,819
Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	11,011	9,863	[1]	9,814	[1]
Trailing commissions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,200	1,100		1,200
Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,299	2,384	[1]	2,461	[1]
Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,354	1,865		1,797
Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	3,671	3,030		3,318
Credit card rewards and rebates [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Other cost of revenue	1,600	1,300		1,500
Corporate [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	(1,541)	441		2,246
Lending-related fees	(1)	(1)		2
Other card fees	0	1		(1)
Total card fees	0	2		5
Mortgage banking	(2)	0		0
Net gains (losses) from trading activities	(9)	(40)		(79)
Net gains (losses) from equity securities	5,929	691		2,171
Lease income	281	579		661
Other	2,044	1,336		2,918
Total noninterest income	10,036	4,916		7,550
Total revenue	8,495	5,357		9,796
Corporate [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	509	867		141
Corporate [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	5	9		9
Corporate [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,375	1,651		1,816
Corporate [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(1)	(9)		(1)
Corporate [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(94)	(169)		(93)
Corporate [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	1		6
Reconciling Items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	(427)	(494)		(624)
Lending-related fees	0	0		0
Other card fees	0	0		0
Total card fees	0	0		0
Mortgage banking	0	0		0
Net gains (losses) from trading activities	0	0		0
Net gains (losses) from equity securities	0	0		0
Lease income	0	0		0
Other	(1,187)	(931)		(795)
Total noninterest income	(1,187)	(931)		(795)
Total revenue	(1,614)	(1,425)		(1,419)
Reconciling Items [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		0
Reconciling Items [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	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
Reconciling Items [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0
Reconciling Items [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0
Reconciling Items [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0
Consumer Banking and Lending [Member] | Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	22,807	23,378		25,786
Lending-related fees	145	158		230
Other card fees	504	513		699
Total card fees	3,930	3,318		3,672
Mortgage banking	4,490	3,224		2,314
Net gains (losses) from trading activities	0	1		2
Net gains (losses) from equity securities	(2)	10		4
Lease income	0	0		0
Other	473	1,025		2,306
Total noninterest income	12,070	10,638		12,105
Total revenue	34,877	34,016		37,891
Consumer Banking and Lending [Member] | Operating Segments [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	6		0
Consumer Banking and Lending [Member] | Operating Segments [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	3,045	2,904		3,582
Consumer Banking and Lending [Member] | Operating Segments [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0
Consumer Banking and Lending [Member] | Operating Segments [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0
Consumer Banking and Lending [Member] | Operating Segments [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	(11)	(8)		(5)
Consumer Banking and Lending [Member] | Operating Segments [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	3,426	2,805		2,973
Commercial Banking [Member] | Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	4,960	6,134		7,981
Lending-related fees	532	531		524
Other card fees	0	0		0
Total card fees	196	170		254
Mortgage banking	0	0		0
Net gains (losses) from trading activities	0	(4)		(10)
Net gains (losses) from equity securities	132	(147)		115
Lease income	682	646		931
Other	655	518		616
Total noninterest income	3,589	3,041		3,721
Total revenue	8,549	9,175		11,702
Commercial Banking [Member] | Operating Segments [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	44	0		4
Commercial Banking [Member] | Operating Segments [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,285	1,219		1,175
Commercial Banking [Member] | Operating Segments [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	10	32		27
Commercial Banking [Member] | Operating Segments [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	0	0		0
Commercial Banking [Member] | Operating Segments [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	53	76		85
Commercial Banking [Member] | Operating Segments [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	196	170		254
Corporate and Investment Banking [Member] | Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	7,410	7,509		8,008
Lending-related fees	761	684		710
Other card fees	0	0		0
Total card fees	45	51		79
Mortgage banking	480	282		413
Net gains (losses) from trading activities	272	1,190		1,022
Net gains (losses) from equity securities	289	212		297
Lease income	33	20		22
Other	690	556		717
Total noninterest income	6,429	6,419		6,442
Total revenue	13,839	13,928		14,450
Corporate and Investment Banking [Member] | Operating Segments [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		(5)
Corporate and Investment Banking [Member] | Operating Segments [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1,112	1,062		1,029
Corporate and Investment Banking [Member] | Operating Segments [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	52	95		62
Corporate and Investment Banking [Member] | Operating Segments [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	290	315		292
Corporate and Investment Banking [Member] | Operating Segments [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,405	1,952		1,804
Corporate and Investment Banking [Member] | Operating Segments [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	45	51		79
Wealth and Investment Management [Member] | Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest Income	2,570	2,988		3,906
Lending-related fees	8	9		8
Other card fees	0	0		0
Total card fees	4	3		6
Mortgage banking	(12)	(13)		(12)
Net gains (losses) from trading activities	21	25		58
Net gains (losses) from equity securities	79	(101)		256
Lease income	0	0		0
Other	63	98		81
Total noninterest income	11,776	10,225		10,506
Total revenue	14,346	13,213		14,412
Wealth and Investment Management [Member] | Operating Segments [Member] | Debt securities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net gains (losses) on debt securities	0	0		0
Wealth and Investment Management [Member] | Operating Segments [Member] | Deposit-related fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	28	27		24
Wealth and Investment Management [Member] | Operating Segments [Member] | Investment advisory and other asset-based fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	9,574	8,085		7,909
Wealth and Investment Management [Member] | Operating Segments [Member] | Commissions and brokerage service fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	2,010	2,078		2,170
Wealth and Investment Management [Member] | Operating Segments [Member] | Investment banking fees [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	1	14		6
Wealth and Investment Management [Member] | Operating Segments [Member] | Card interchange and network revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Fee income	$ 4	$ 3		$ 6
[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, Changes in B

Employee Benefits, Changes in Benefit Obligation and Fair Value of Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended			150 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Cash balance plan [Member]
Employee Benefits and Other Expenses Textual [Abstract]
Net periodic benefit cost (income)				$ 0
Pension benefits [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 12,061
Fair value of plan assets at end of year	11,581	$ 12,061		11,581
Pension benefits qualified [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	11,956	11,116
Service cost	17	14	$ 11
Interest cost	296	325	419
Plan participants’ contributions	0	0
Actuarial loss (gain)	(414)	1,205
Benefits paid	(818)	(706)
Settlements, Curtailments, and Amendments	(2)	(1)
Foreign exchange impact	(3)	3
Benefit obligation at end of year	11,032	11,956	11,116	11,032
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	12,061	10,763
Actual return on plan assets	324	1,291
Employer contribution	15	712
Plan participants’ contributions	0	0
Benefits paid	(818)	(706)
Settlement	0	(1)
Foreign exchange impact	(1)	2
Fair value of plan assets at end of year	11,581	12,061	10,763	11,581
Funded status at end of year	549	105		549
Amounts recognized on the consolidated balance sheet at end of year, Assets	620	181		620
Amounts recognized on the consolidated balance sheet at end of year, Liabilities	(71)	(76)		(71)
Employee Benefits and Other Expenses Textual [Abstract]
Net periodic benefit cost (income)	(11)	14	11
Settlement loss	134	121	0
Pension benefits qualified [Member] | Cash balance plan [Member]
Employee Benefits and Other Expenses Textual [Abstract]
Pension contributions	0
Settlement loss	133	121
Pension benefits nonqualified [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	556	572
Service cost	0	0	0
Interest cost	12	16	22
Plan participants’ contributions	0	0
Actuarial loss (gain)	(18)	25
Benefits paid	(49)	(57)
Settlements, Curtailments, and Amendments	0	0
Foreign exchange impact	0	0
Benefit obligation at end of year	501	556	572	501
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contribution	49	57
Plan participants’ contributions	0	0
Benefits paid	(49)	(57)
Settlement	0	0
Foreign exchange impact	0	0
Fair value of plan assets at end of year	0	0	0	0
Funded status at end of year	(501)	(556)		(501)
Amounts recognized on the consolidated balance sheet at end of year, Assets	0	0		0
Amounts recognized on the consolidated balance sheet at end of year, Liabilities	(501)	(556)		(501)
Employee Benefits and Other Expenses Textual [Abstract]
Net periodic benefit cost (income)	29	33	34
Settlement loss	2	3	2
Other benefits [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	491	525
Service cost	0	0	0
Interest cost	11	16	23
Plan participants’ contributions	40	43
Actuarial loss (gain)	(34)	(15)
Benefits paid	(69)	(78)
Settlements, Curtailments, and Amendments	0	0
Foreign exchange impact	0	0
Benefit obligation at end of year	439	491	525	439
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	549	540
Actual return on plan assets	25	38
Employer contribution	5	6
Plan participants’ contributions	40	43
Benefits paid	(69)	(78)
Settlement	0	0
Foreign exchange impact	0	0
Fair value of plan assets at end of year	550	549	540	550
Funded status at end of year	111	58		111
Amounts recognized on the consolidated balance sheet at end of year, Assets	133	84		133
Amounts recognized on the consolidated balance sheet at end of year, Liabilities	(22)	(26)		$ (22)
Employee Benefits and Other Expenses Textual [Abstract]
Net periodic benefit cost (income)	(38)	(34)	(32)
Settlement loss	$ 0	$ 0	$ 0

Employee Benefits, Pension Plan

Employee Benefits, Pension Plans With Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Pension benefits [Member]
Pension Plans Information with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 664	$ 715
Accumulated benefit obligation	631	684
Fair value of plan assets	91	82
Other benefits [Member]
Pension Plans Information with Benefit Obligations in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	22	26
Fair value of plan assets	$ 0	$ 0

Employee Benefits, Net Periodic

Employee Benefits, Net Periodic Benefit Cost and Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial loss (gain)	$ (200)	$ 510	$ 40
Amortization of net actuarial gain (loss)	(135)	(152)	(141)
Total recognized in other comprehensive income	(461)	244	(93)
Pension benefits qualified [Member]
Components of net periodic benefit cost [Abstract]
Service cost	17	14	11
Interest cost	296	325	419
Expected return on plan assets	(598)	(603)	(567)
Amortization of net actuarial loss (gain)	140	157	148
Amortization of prior service credit	0	0	0
Settlement loss	134	121	0
Net periodic benefit cost	(11)	14	11
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial loss (gain)	(142)	517	38
Amortization of net actuarial gain (loss)	(140)	(157)	(148)
Amortization of prior service credit	0	0	0
Settlement	(134)	(121)	0
Total recognized in other comprehensive income	(416)	239	(110)
Total recognized in net periodic benefit cost and other comprehensive income	(427)	253	(99)
Pension benefits nonqualified [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0	0
Interest cost	12	16	22
Expected return on plan assets	0	0	0
Amortization of net actuarial loss (gain)	15	14	10
Amortization of prior service credit	0	0	0
Settlement loss	2	3	2
Net periodic benefit cost	29	33	34
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial loss (gain)	(18)	25	49
Amortization of net actuarial gain (loss)	(15)	(14)	(10)
Amortization of prior service credit	0	0	0
Settlement	(2)	(3)	(2)
Total recognized in other comprehensive income	(35)	8	37
Total recognized in net periodic benefit cost and other comprehensive income	(6)	41	71
Other benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0	0
Interest cost	11	16	23
Expected return on plan assets	(19)	(21)	(28)
Amortization of net actuarial loss (gain)	(20)	(19)	(17)
Amortization of prior service credit	(10)	(10)	(10)
Settlement loss	0	0	0
Net periodic benefit cost	(38)	(34)	(32)
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial loss (gain)	(40)	(32)	(47)
Amortization of net actuarial gain (loss)	20	19	17
Amortization of prior service credit	10	10	10
Settlement	0	0	0
Total recognized in other comprehensive income	(10)	(3)	(20)
Total recognized in net periodic benefit cost and other comprehensive income	$ (48)	$ (37)	$ (52)

Employee Benefits, Benefits Rec

Employee Benefits, Benefits Recognized in Cumulative OCI and Weighted-Average Assumptions in Determining Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assumed Health Care Cost Trend Rates Textuals [Abstract]
Health care cost trend rate assumed for next fiscal year, projected benefit obligation	7.50%
Ultimate health care cost trend rate, projected benefit obligation	4.50%
Year that rate reaches ultimate health care cost trend rate, projected benefit obligation	2030
Defined benefit plan health care cost initial annual tend rate assumed for current fiscal year periodic benefit cost	7.80%
Ultimate health care cost trend rate, periodic benefit cost	4.50%
Year that rate reaches ultimate health care cost trend rate, periodic benefit cost	2030
Minimum [Member]
Assumed Health Care Cost Trend Rates Textuals [Abstract]
Decrease in assumed health care cost trend, rate, projected benefit obligation	0.30%
Decrease in assumed health care cost trend, rate, periodic benefit cost	0.30%
Maximum [Member]
Assumed Health Care Cost Trend Rates Textuals [Abstract]
Decrease in assumed health care cost trend, rate, projected benefit obligation	0.40%
Decrease in assumed health care cost trend, rate, periodic benefit cost	0.40%
Equity securities [Member] | Cash balance plan [Member] | Minimum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	10.00%
Equity securities [Member] | Cash balance plan [Member] | Maximum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	20.00%
Equity securities [Member] | 401(h) trust [Member] | Minimum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	50.00%
Equity securities [Member] | 401(h) trust [Member] | Maximum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	60.00%
Fixed Income Funds [Member] | Cash balance plan [Member] | Minimum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	75.00%
Fixed Income Funds [Member] | Cash balance plan [Member] | Maximum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	85.00%
Fixed Income Funds [Member] | 401(h) trust [Member] | Minimum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	40.00%
Fixed Income Funds [Member] | 401(h) trust [Member] | Maximum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	50.00%
Real estate, venture capital, private equity and other investments [Member] | Cash balance plan [Member] | Minimum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	0.00%
Real estate, venture capital, private equity and other investments [Member] | Cash balance plan [Member] | Maximum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Target asset allocation	10.00%
Pension benefits qualified [Member]
Benefits Recognized in Cumulative Other Comprehensive Income [Abstract]
Net actuarial loss (gain)	$ 3,049	$ 3,465
Net prior service cost (credit)	1	1
Total	$ 3,050	$ 3,466
Defined Benefit Plan, Weighted Average Assumptions Used to Estimate Projected Benefit Obligation [Abstract]
Discount rate	2.85%	2.46%
Interest credit rate	2.69%	2.66%
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Discount rate	2.63%	2.95%	4.30%
Interest crediting rate	2.68%	2.68%	3.22%
Expected return on plan assets	5.17%	5.74%	6.24%
Pension benefits nonqualified [Member]
Benefits Recognized in Cumulative Other Comprehensive Income [Abstract]
Net actuarial loss (gain)	$ 159	$ 194
Net prior service cost (credit)	0	0
Total	$ 159	$ 194
Defined Benefit Plan, Weighted Average Assumptions Used to Estimate Projected Benefit Obligation [Abstract]
Discount rate	2.60%	2.15%
Interest credit rate	1.25%	0.87%
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Discount rate	2.32%	3.12%	4.10%
Interest crediting rate	1.08%	1.46%	2.05%
Other benefits [Member]
Benefits Recognized in Cumulative Other Comprehensive Income [Abstract]
Net actuarial loss (gain)	$ (390)	$ (370)
Net prior service cost (credit)	(126)	(136)
Total	$ (516)	$ (506)
Defined Benefit Plan, Weighted Average Assumptions Used to Estimate Projected Benefit Obligation [Abstract]
Discount rate	2.71%	2.31%
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Discount rate	2.31%	3.10%	4.24%
Expected return on plan assets	3.50%	4.00%	5.75%

Employee Benefits, Projected Be

Employee Benefits, Projected Benefits Payments (Details) $ in Millions	Dec. 31, 2021USD ($)
Pension benefits qualified [Member]
Future Benefit Payments:
2022	$ 859
2023	734
2024	690
2025	696
2026	694
2027-2031	3,284
Pension benefits nonqualified [Member]
Future Benefit Payments:
2022	44
2023	42
2024	41
2025	39
2026	38
2027-2031	161
Other benefits [Member]
Future Benefit Payments:
2022	38
2023	36
2024	34
2025	33
2026	31
2027-2031	$ 135

Employee Benefits, Pension and

Employee Benefits, Pension and Other Benefit Plan Assets (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)strategy	Dec. 31, 2020USD ($)strategy	Dec. 31, 2019USD ($)
Pension plan assets [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 10,999	$ 11,457
Total plan assets	11,581	12,061
Net receivables	49	32
Pension plan assets [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	244	222
Pension plan assets [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 8,390	$ 7,124
Investment Strategy and Asset Allocation Textuals [Abstract]
Duration target	11 years	12 years
Pension plan assets [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 429	$ 333
Pension plan assets [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	134	232
Pension plan assets [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	83	136
Pension plan assets [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 435	$ 889
Investment Strategy and Asset Allocation Textuals [Abstract]
Number of unique investment strategies | strategy	8	8
Pension plan assets [Member] | Domestic large-cap stocks [Member] | Maximum [Member] | Single investment manager strategy [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Defined benefit plan, plan assets, investment within plan asset category, percentage	2.00%	2.00%
Pension plan assets [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 164	$ 337
Pension plan assets [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	100	222
Pension plan assets [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 204	$ 417
Pension plan assets [Member] | Global stocks [Member] | Maximum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Number of unique investment strategies | strategy		5
Pension plan assets [Member] | Global stocks [Member] | Maximum [Member] | Single investment manager strategy [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Defined benefit plan, plan assets, investment within plan asset category, percentage	1.00%	1.50%
Pension plan assets [Member] | Global stocks [Member] | Minimum [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Number of unique investment strategies | strategy	4
Pension plan assets [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 355	$ 701
Investment Strategy and Asset Allocation Textuals [Abstract]
Number of unique investment strategies | strategy	5	5
Pension plan assets [Member] | International stocks [Member] | Maximum [Member] | Single investment manager strategy [Member]
Investment Strategy and Asset Allocation Textuals [Abstract]
Defined benefit plan, plan assets, investment within plan asset category, percentage	1.50%	1.50%
Pension plan assets [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	$ 126	$ 267
Pension plan assets [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	116	179
Pension plan assets [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	54	150
Pension plan assets [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	165	248
Pension plan assets [Member] | Level 1 [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	2,507	2,866
Pension plan assets [Member] | Level 1 [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	2	68
Pension plan assets [Member] | Level 1 [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	1,562	1,032
Pension plan assets [Member] | Level 1 [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 1 [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 1 [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 1 [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	378	647
Pension plan assets [Member] | Level 1 [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	104	216
Pension plan assets [Member] | Level 1 [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	94	212
Pension plan assets [Member] | Level 1 [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 1 [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	139	260
Pension plan assets [Member] | Level 1 [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	30	51
Pension plan assets [Member] | Level 1 [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	87	133
Pension plan assets [Member] | Level 1 [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	73
Pension plan assets [Member] | Level 1 [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	111	174
Pension plan assets [Member] | Level 2 [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	8,481	8,579
Pension plan assets [Member] | Level 2 [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	242	154
Pension plan assets [Member] | Level 2 [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	6,827	6,092
Pension plan assets [Member] | Level 2 [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	429	333
Pension plan assets [Member] | Level 2 [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	134	232
Pension plan assets [Member] | Level 2 [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	83	136
Pension plan assets [Member] | Level 2 [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	57	242
Pension plan assets [Member] | Level 2 [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	60	121
Pension plan assets [Member] | Level 2 [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	6	10
Pension plan assets [Member] | Level 2 [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	204	417
Pension plan assets [Member] | Level 2 [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	216	440
Pension plan assets [Member] | Level 2 [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	96	216
Pension plan assets [Member] | Level 2 [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	28	44
Pension plan assets [Member] | Level 2 [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	54	77
Pension plan assets [Member] | Level 2 [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	45	65
Pension plan assets [Member] | Level 3 [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	11	12
Total plan assets	11	12	$ 16
Pension plan assets [Member] | Level 3 [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	1	0
Pension plan assets [Member] | Level 3 [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	1
Pension plan assets [Member] | Level 3 [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	1	2
Pension plan assets [Member] | Level 3 [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Pension plan assets [Member] | Level 3 [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	9	9
Pension plan assets [Member] | Investments at NAV [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Total plan assets	533	572
Other benefits plan assets [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	550	549
Total plan assets	550	549	540
Net receivables	0	0
Other benefits plan assets [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	183	191
Other benefits plan assets [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	193	186
Other benefits plan assets [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	78	74
Other benefits plan assets [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	20	20
Other benefits plan assets [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	11	12
Other benefits plan assets [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	35	37
Other benefits plan assets [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	30	29
Other benefits plan assets [Member] | Level 1 [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	68	63
Other benefits plan assets [Member] | Level 1 [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	40	46
Other benefits plan assets [Member] | Level 1 [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	11	0
Other benefits plan assets [Member] | Level 1 [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	11	12
Other benefits plan assets [Member] | Level 1 [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 1 [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	6	5
Other benefits plan assets [Member] | Level 2 [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	458	462
Other benefits plan assets [Member] | Level 2 [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	143	145
Other benefits plan assets [Member] | Level 2 [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	193	186
Other benefits plan assets [Member] | Level 2 [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	67	74
Other benefits plan assets [Member] | Level 2 [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	20	20
Other benefits plan assets [Member] | Level 2 [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	11	12
Other benefits plan assets [Member] | Level 2 [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	24	25
Other benefits plan assets [Member] | Level 2 [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 2 [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	24	24
Total plan assets	24	24	$ 24
Other benefits plan assets [Member] | Level 3 [Member] | Cash and cash equivalents [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Long duration fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Intermediate (core) fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | High-yield fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | International fixed income [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Domestic large-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Domestic mid-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Domestic small-cap stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Global stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | International stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Emerging market stocks [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Real estate [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Hedge funds/absolute return [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	0	0
Other benefits plan assets [Member] | Level 3 [Member] | Other [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Plan investments - excluding investments at NAV	24	24
Other benefits plan assets [Member] | Investments at NAV [Member]
Balances of pension plan and other benefit plan assets measured at fair value [Abstract]
Total plan assets	$ 0	$ 0

Employee Benefits, Fair Value L

Employee Benefits, Fair Value Level 3 Pension and Other Benefit Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Retirement Plans Textual [Abstract]
Defined contribution retirement plan expense	$ 1,100	$ 1,100	$ 1,100
Pension plan assets [Member]
Changes in Level 3 pension plan assets measured at fair value [Abstract]
Fair value of plan assets at beginning of year	12,061
Fair value of plan assets at end of year	11,581	12,061
Pension plan assets [Member] | Level 3 [Member]
Changes in Level 3 pension plan assets measured at fair value [Abstract]
Fair value of plan assets at beginning of year	12	16
Gains (losses)	6	(1)
Purchases, sales and settlements (net)	(8)	(4)
Transfer into/(out of) Level 3	1	1
Fair value of plan assets at end of year	11	12	16
Other benefits plan assets [Member]
Changes in Level 3 pension plan assets measured at fair value [Abstract]
Fair value of plan assets at beginning of year	549	540
Fair value of plan assets at end of year	550	549	540
Other benefits plan assets [Member] | Level 3 [Member]
Changes in Level 3 pension plan assets measured at fair value [Abstract]
Fair value of plan assets at beginning of year	24	24
Gains (losses)	0	0
Purchases, sales and settlements (net)	0	0
Transfer into/(out of) Level 3	0	0
Fair value of plan assets at end of year	$ 24	$ 24	$ 24
Wells Fargo And Company 401(k) Plan [Member] | United States [Member]
Defined Contribution Retirement Plans Textual [Abstract]
Service period for employee to be eligible to contribute to 401(k) plan	1 month	1 month
Percentage of employee contribution	50.00%	50.00%
Service period for employees to be eligible for company matching contributions, employed in benefit-eligible position on December 15	1 year
Service period for employee to be eligible for company matching contributions		1 year
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Maximum [Member]
Defined Contribution Retirement Plans Textual [Abstract]
Percentage of employer match (up to 6%)	6.00%	6.00%
Percentage of discretionary profit sharing contribution (up to 4%)		4.00%
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Employees hired 12/31/2020 and prior [Member]
Defined Contribution Retirement Plans Textual [Abstract]
Profit sharing contribution, vesting percentage	100.00%	100.00%
Matching contribution, no vesting period, vesting percentage	100.00%	100.00%
Profit sharing contribution, vesting period	3 years	3 years
Matching contribution, vesting period	0 days	0 days
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Employees hired after 12/31/2020 [Member]
Defined Contribution Retirement Plans Textual [Abstract]
Profit sharing contribution, vesting percentage	100.00%
Matching contribution, vesting after three years, vesting percentage	100.00%
Profit sharing contribution, vesting period	3 years
Matching contribution, vesting period	3 years
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Employees With Annual Compensation Of Less Than $75,000 [Member]
Defined Contribution Retirement Plans Textual [Abstract]
Percentage of non-discretionary profit sharing contribution (up to 1%)	1.00%
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Employees with annual compensation of less than $150,000 [Member] | Maximum [Member]
Defined Contribution Retirement Plans Textual [Abstract]
Percentage of discretionary profit sharing contribution (up to 4%)	4.00%

Employee Benefits and Other E_3

Employee Benefits and Other Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Other noninterest expense	$ 4,128	$ 4,129	$ 4,687
Regulatory charges and assessments expense, including FDIC assessment expense [Member]
Defined Benefit Plan Disclosure [Line Items]
Other noninterest expense	$ 842	$ 834	$ 723

Restructuring Charges, Accruals

Restructuring Charges, Accruals for Restructuring Charges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	$ 1,214	$ 0
Restructuring charges	726	1,595
Payments and utilization	(725)	(285)
Changes in estimates	(650)	(96)
Accruals for restructuring charges, ending balance	565	1,214
Personnel cost [Member]
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	1,170	0
Restructuring charges	716	1,371
Payments and utilization	(683)	(105)
Changes in estimates	(638)	(96)
Accruals for restructuring charges, ending balance	565	1,170
Facility closure cost [Member]
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	0	0
Restructuring charges	10	80
Payments and utilization	(4)	(80)
Changes in estimates	(6)	0
Accruals for restructuring charges, ending balance	0	0
Other restructuring [Member]
Restructuring Reserve [Roll Forward]
Accruals for restructuring charges, beginning balance	44	0
Restructuring charges	0	144
Payments and utilization	(38)	(100)
Changes in estimates	(6)	0
Accruals for restructuring charges, ending balance	$ 0	$ 44

Income Taxes, Components of Inc

Income Taxes, Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Current:
U.S. Federal	$ 5,850	$ 2,231		$ 6,781
U.S. State and local	849	(310)		2,018
Non-U.S.	171	211		154
Total current	6,870	2,132		8,953
Deferred:
U.S. Federal	(1,446)	(2,440)		(2,331)
U.S. State and local	200	(789)		(852)
Non-U.S.	(46)	(60)		(9)
Total deferred	(1,292)	(3,289)		(3,192)
Income tax expense	$ 5,578	$ (1,157)	[1]	$ 5,761	[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).

Income Taxes, Effective Income

Income Taxes, Effective Income Tax Expense (Benefit) and Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax expense	$ 5,697	$ 466		$ 5,350
Statutory federal income tax expense, rate	21.00%	21.00%		21.00%
Change in tax rate resulting from:
State and local taxes on income, net of federal income tax benefit	$ 1,046	$ 65		$ 944
State and local taxes on income, net of federal income tax benefit, rate	3.90%	2.80%		3.70%
Tax-exempt interest	$ (316)	$ (358)		$ (460)
Tax-exempt interest, rate	(1.20%)	(16.10%)		(1.80%)
Tax credits, net of amortization	$ (1,001)	$ (626)		$ (530)
Tax credits, net of amortization, rate	(3.70%)	(28.20%)		(2.10%)
Nondeductible expenses	$ 368	$ 199		$ 800
Nondeductible expenses, rate	1.40%	9.00%		3.10%
Changes in prior year unrecognized tax benefits, inclusive of interest	$ (122)	$ (938)		$ (88)
Changes in prior year unrecognized tax benefits, inclusive of interest, rate	(0.40%)	(42.20%)		(0.30%)
Other	$ (94)	$ 35		$ (255)
Other, rate	(0.40%)	1.60%		(1.00%)
Effective income tax expense (benefit)	$ 5,578	$ (1,157)	[1]	$ 5,761	[1]
Effective income tax expense (benefit), rate	20.60%	(52.10%)		22.60%
LIHTC proportional amortization expense, net of tax	$ 1,200	$ 1,100		$ 961
Goodwill [Member]
Change in tax rate resulting from:
Nondeductible expenses	$ 155
[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).

Income Taxes, Net Deferred Tax

Income Taxes, Net Deferred Tax Asset (Liability) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets
Deferred tax assets valuation allowance	$ (267)
Deferred tax liabilities
Deferred tax assets valuation allowance	$ 267
Expiration date of tax credit carryforwards	Dec. 31, 2041
Undistributed earnings of foreign subsidiaries	$ 0
Restatement adjustment [Member] | Change in accounting method on LIHTC investments and change in presentation of tax credits on solar energy investments [Member]
Deferred tax liabilities
Net deferred tax liability		$ (68)
Accrued expenses and other liabilities [Member]
Deferred Tax Assets
Allowance for credit losses	3,415	4,871
Deferred compensation and employee benefits	3,124	3,225
Accrued expenses	1,300	1,503
Lease liabilities	1,142	1,262
Net operating loss and tax credit carry forwards	382	366
Other	1,048	944
Total deferred tax assets	10,411	12,171
Deferred tax assets valuation allowance	(267)	(310)
Deferred tax liabilities
Mark to market, net	(3,631)	(4,043)
Leasing and fixed assets	(3,523)	(4,163)
Mortgage servicing rights	(2,414)	(2,647)
Right-of-use assets	(948)	(1,085)
Intangible assets	(559)	(605)
Basis difference in investments	(496)	(1,484)
Net unrealized gains on debt securities	(278)	(1,056)
Other	(1,082)	(1,468)
Total deferred tax liabilities	(12,931)	(16,551)
Net deferred tax liability	(2,787)	(4,690)
Deferred tax assets valuation allowance	$ 267	$ 310

Income Taxes, Change in Unrecog

Income Taxes, Change in Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 4,826	$ 6,996
Additions:
For tax positions related to the current year	441	52
For tax positions related to prior years	259	263
Reductions:
For tax positions related to prior years	(124)	(1,820)
Lapse of statute of limitations	(164)	(3)
Settlements with tax authorities	(20)	(662)
Balance at end of year	5,218	4,826
Unrecognized tax benefits	5,218	4,826
Unrecognized tax benefits that would impact effective tax rate	3,700
Unrecognized tax benefits related to income tax positions on temporary differences	1,500
Accrued interest and penalties	914	951
Recognized interest and penalties expense (benefit), net of tax	$ (33)	$ 10

Income Taxes, Tax Examination S

Income Taxes, Tax Examination Status (Details) $ in Billions	12 Months Ended
	Dec. 31, 2021USD ($)
United States [Member] | Administration Appeals [Member]
Income Tax Examination [Line Items]
Income tax examination, year under examination	2011 2012 2013 2014
United States [Member] | Field Examination [Member]
Income Tax Examination [Line Items]
Income tax examination, year under examination	2015 2016 2017 2018
California [Member] | Field Examination [Member]
Income Tax Examination [Line Items]
Income tax examination, year under examination	2015 2016
New York [Member] | Field Examination [Member]
Income Tax Examination [Line Items]
Income tax examination, year under examination	2015 2016 2017 2018 2019
Maximum [Member]
Income Tax Examination [Line Items]
Possible decrease in unrecognized tax benefits (up to $1.5 billion)	$ 1.5

Earnings Per Common Share, Earn

Earnings Per Common Share, Earnings Per Common Share Calculations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Earnings Per Common Share [Abstract]
Wells Fargo net income (loss)	$ 21,548	$ 3,377	[1]	$ 19,715	[1]
Less: Preferred stock dividends and other	1,292	1,591		1,612
Wells Fargo net income (loss) applicable to common stock (numerator)	$ 20,256	$ 1,786	[1]	$ 18,103	[1]
Earnings per common share
Average common shares outstanding (denominator) (in shares)	4,061.9	4,118	[1]	4,393.1	[1]
Per share (in dollars per share)	$ 4.99	$ 0.43	[1]	$ 4.12	[1]
Diluted earnings per common share
Average common shares outstanding (in shares)	4,061.9	4,118	[1]	4,393.1	[1]
Diluted average common shares outstanding (denominator) (in shares)	4,096.2	4,134.2	[1]	4,425.4	[1]
Per share (in dollars per share)	$ 4.95	$ 0.43	[1]	$ 4.09	[1]
Preferred stock, accretion of redemption discount or issuance costs	$ 87	$ 301		$ 220
Stock options [Member]
Diluted earnings per common share
Diluted average common shares outstanding, adjustment (in shares)	0	0		0.8
Restricted share rights [Member]
Diluted earnings per common share
Diluted average common shares outstanding, adjustment (in shares)	34.3	16.2		31.5
[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).

Earnings Per Common Share, Outs

Earnings Per Common Share, Outstanding Anti-dilutive Securities (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted share rights [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive instruments	0.2	1.1	0
Convertible Preferred Stock, Series L [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive instruments	25.3	25.3	25.3

Earnings Per Common Share, Divi

Earnings Per Common Share, Dividends Declared Per Common Shares (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Dividends declared per common share (in dollars per share)	$ 0.60	$ 1.22	$ 1.92

Other Comprehensive Income, Com

Other Comprehensive Income, Components of Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt securities:
Net unrealized gains (losses) arising during the period, Before tax	$ (3,070)	$ 2,317	$ 5,439
Net unrealized gains (losses) arising during the period, Tax effect	759	(570)	(1,337)
Net unrealized gains (losses) arising during the period, Net of tax	(2,311)	1,747	4,102
Reclassification of net (gains) losses to net income, Before tax	(82)	(341)	122
Reclassification of net (gains) losses to net income, Tax effect	18	81	(31)
Reclassification of net (gains) losses to net income, Net of tax	(64)	(260)	91
Net change, Before tax	(3,152)	1,976	5,561
Net change, Tax effect	777	(489)	(1,368)
Net change, Net of tax	(2,375)	1,487	4,193
Cash Flow Hedges:
Net change, Before tax	212	198	275
Net change, Tax effect	(53)	(49)	(68)
Net change, Net of tax	159	149	207
Defined benefit plans adjustments:
Net actuarial and prior service gains (losses) arising during the period, Before tax	200	(510)	(40)
Net actuarial and prior service gains (losses) arising during the period, Tax effect	(50)	126	10
Net actuarial and prior service gains (losses) arising during the period, Net of tax	150	(384)	(30)
Amortization of net actuarial loss, Before tax	135	152	141
Amortization of net actuarial loss, Tax effect	(33)	(37)	(35)
Amortization of net actuarial loss, Net of tax	102	115	106
Settlements and other, Before tax	126	114	(8)
Settlements and other, Tax effect	(29)	(26)	5
Settlements and other, Net of tax	97	88	(3)
Subtotal reclassifications to noninterest expense, Before tax	261	266	133
Subtotal reclassifications to noninterest expense, Tax effect	(62)	(63)	(30)
Subtotal reclassifications to noninterest expense, Net of tax	199	203	103
Net change, Before tax	461	(244)	93
Net change, Tax effect	(112)	63	(20)
Net change, Net of tax	349	(181)	73
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period, Before tax	(30)	52	73
Net unrealized gains (losses) arising during the period, Tax effect	1	(2)	(2)
Net unrealized gains (losses) arising during the period, Net of tax	(29)	50	71
Reclassification of net (gains) losses to net income, Before tax	(1)	0	0
Reclassification of net (gains) losses to net income, Tax	0	0	0
Reclassification of net (gains) losses to net income, Net of Tax	(1)	0	0
Net change, Before tax	(31)	52	73
Net change, Tax effect	1	(2)	(2)
Net change, Net of tax	(30)	50	71
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), Before tax	(2,510)	1,982	6,002
Other comprehensive income (loss), Tax effect	613	(477)	(1,458)
Other comprehensive income (loss), after tax	(1,897)	1,505	4,544
Total Wells Fargo stockholders' equity [Member]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), after tax	(1,896)	1,505	4,544
Noncontrolling interests [Member]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other comprehensive income (loss), after tax	(1)	0	0
Debt securities [Member] | Interest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, Before tax	474	532	263
Reclassification of net (gains) losses to net income, Tax effect	(117)	(132)	(65)
Reclassification of net (gains) losses to net income, Net of tax	357	400	198
Debt securities [Member] | Net gains on debt securities [Member]
Debt securities:
Reclassification of net (gains) losses to net income, Before tax	(553)	(873)	(140)
Reclassification of net (gains) losses to net income, Tax effect	134	213	34
Reclassification of net (gains) losses to net income, Net of tax	(419)	(660)	(106)
Debt securities [Member] | Other noninterest income [Member]
Debt securities:
Reclassification of net (gains) losses to net income, Before tax	(3)	0	(1)
Reclassification of net (gains) losses to net income, Tax effect	1	0	0
Reclassification of net (gains) losses to net income, Net of tax	(2)	0	(1)
Fair value hedging [Member]
Fair Value Hedges:
Change in fair value of excluded components on fair value hedges, Before tax	81	(31)	(3)
Change in fair value of excluded components on fair value hedges, Tax	(20)	7	1
Change in fair value of excluded components on fair value hedges, Net of tax	61	(24)	(2)
Cash flow hedging [Member]
Cash Flow Hedges:
Net unrealized gains (losses) arising during the period on cash flow hedges, Before Tax	(12)	10	(21)
Net unrealized gains (losses) arising during the period on cash flow hedges, Tax	3	(2)	5
Net unrealized gains (losses) arising during the period on cash flow hedges, Net of Tax	(9)	8	(16)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax	143	219	299
Reclassification of net (gains) losses to net income on cash flow hedges, Tax	(36)	(54)	(74)
Reclassification of net (gains) losses to net income on cash flow hedges, Net of tax	107	165	225
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	137	215	291
Reclassification of net (gains) losses to net income on cash flow hedges, Tax	(34)	(53)	(72)
Reclassification of net (gains) losses to net income on cash flow hedges, Net of tax	103	162	219
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	6	4	8
Reclassification of net (gains) losses to net income on cash flow hedges, Tax	(2)	(1)	(2)
Reclassification of net (gains) losses to net income on cash flow hedges, Net of tax	$ 4	$ 3	$ 6

Other Comprehensive Income, Cum

Other Comprehensive Income, Cumulative OCI Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cumulative OCI balances [Abstract]
Balance, beginning of period	$ 185,712		$ 197,066
Other comprehensive income (loss), after tax	(1,897)	$ 1,505	4,544
Balance, end of period	190,110	185,712
AOCI including portion attributable to noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	(2,138)	1,397	4,125
Amounts reclassified from accumulated other comprehensive income	241	108	419
Other comprehensive income (loss), after tax	(1,897)	1,505	4,544
Debt securities [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	(2,311)	1,747	4,102
Amounts reclassified from accumulated other comprehensive income	(64)	(260)	91
Other comprehensive income (loss), after tax	(2,375)	1,487	4,193
Fair value hedges [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	61	(24)	(2)
Amounts reclassified from accumulated other comprehensive income	0	0	0
Other comprehensive income (loss), after tax	61	(24)	(2)
Cash flow hedges [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	(9)	8	(16)
Amounts reclassified from accumulated other comprehensive income	107	165	225
Other comprehensive income (loss), after tax	98	173	209
Defined benefit plans adjustments [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	150	(384)	(30)
Amounts reclassified from accumulated other comprehensive income	199	203	103
Other comprehensive income (loss), after tax	349	(181)	73
Foreign currency translation adjustments [Member]
Cumulative OCI balances [Abstract]
Net unrealized gains (losses) arising during the period	(29)	50	71
Amounts reclassified from accumulated other comprehensive income	(1)	0	0
Other comprehensive income (loss), after tax	(30)	50	71
Total Wells Fargo stockholders' equity [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	(1,896)	1,505	4,544
Cumulative other comprehensive income, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	194	(1,311)	(6,336)
Other comprehensive income (loss), after tax	(1,896)	1,505	4,544
Balance, end of period	(1,702)	194	(1,311)
Cumulative other comprehensive income, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			481
Cumulative other comprehensive income, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			(5,855)
Debt securities, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	3,039	1,552	(3,122)
Balance, end of period	665	3,039	1,552
Debt securities, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			481
Debt securities, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			(2,641)
Fair value hedges, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(204)	(180)	(178)
Balance, end of period	(143)	(204)	(180)
Fair value hedges, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			0
Fair value hedges, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			(178)
Cash flow hedges, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(125)	(298)	(507)
Balance, end of period	(27)	(125)	(298)
Cash flow hedges, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			0
Cash flow hedges, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			(507)
Defined benefit plans adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(2,404)	(2,223)	(2,296)
Balance, end of period	(2,055)	(2,404)	(2,223)
Defined benefit plans adjustments, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			0
Defined benefit plans adjustments, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			(2,296)
Foreign currency translation adjustments, parent [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	(112)	(162)	(233)
Balance, end of period	(142)	(112)	(162)
Foreign currency translation adjustments, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjustment [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			0
Foreign currency translation adjustments, parent [Member] | Cumulative effect from change in accounting policies, period of adoption adjusted balance [Member] | Accounting Standards Update 2017-08 [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period			(233)
Noncontrolling interests [Member]
Cumulative OCI balances [Abstract]
Balance, beginning of period	1,032	838	900
Other comprehensive income (loss), after tax	(1)	0	0
Balance, end of period	2,504	1,032	838
Cumulative other comprehensive income, noncontrolling Interests [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	(1)	0	0
Debt securities, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	(1)	0	0
Fair value hedges, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	0	0	0
Cash flow hedges, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	0	0	0
Defined benefit plans adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	0	0	0
Foreign currency translation adjustments, noncontrolling interest [Member]
Cumulative OCI balances [Abstract]
Other comprehensive income (loss), after tax	$ 0	$ 0	$ 0

Operating Segments (Details)

Operating Segments (Details) $ in Millions		12 Months Ended
		Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)		Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments		4
Financial Information of Operating Segment [Abstract]
Net interest income		$ 35,779	$ 39,956		$ 47,303
Noninterest income		42,713	34,308		39,529
Total revenue		78,492	74,264		86,832
Provision for credit losses		(4,155)	14,129		2,687
Noninterest expense		53,831	57,630		58,178
Income before income tax expense (benefit)		28,816	2,505		25,967
Income tax expense (benefit)		5,578	(1,157)	[1]	5,761	[1]
Net income before noncontrolling interests		23,238	3,662	[2]	20,206	[2]
Less: Net income (loss) from noncontrolling interests		1,690	285		491
Wells Fargo net income		21,548	3,377	[1]	19,715	[1]
Loans (average)		864,288	941,788
Assets (average)		1,941,905	1,941,709
Deposits (average)		1,437,812	1,376,011
Loans (period-end)		895,394	887,637
Assets	[3]	1,948,068	1,952,911
Deposits (period-end)		1,482,479	1,404,381
Corporate [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		(1,541)	441		2,246
Noninterest income		10,036	4,916		7,550
Total revenue		8,495	5,357		9,796
Provision for credit losses		57	(472)		138
Noninterest expense		4,387	5,716		4,983
Income before income tax expense (benefit)		4,051	113		4,675
Income tax expense (benefit)		596	(670)		900
Net income before noncontrolling interests		3,455	783		3,775
Less: Net income (loss) from noncontrolling interests		1,685	281		486
Wells Fargo net income		1,770	502		3,289
Loans (average)		9,766	19,790
Assets (average)		743,089	675,250
Deposits (average)		40,066	78,172
Loans (period-end)		9,997	10,623
Assets		721,335	728,667
Deposits (period-end)		32,220	53,037
Reconciling Items [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		(427)	(494)		(624)
Noninterest income		(1,187)	(931)		(795)
Total revenue		(1,614)	(1,425)		(1,419)
Provision for credit losses		0	0		0
Noninterest expense		0	0		0
Income before income tax expense (benefit)		(1,614)	(1,425)		(1,419)
Income tax expense (benefit)		(1,614)	(1,425)		(1,419)
Net income before noncontrolling interests		0	0		0
Less: Net income (loss) from noncontrolling interests		0	0		0
Wells Fargo net income		0	0		0
Loans (average)		0	0
Assets (average)		0	0
Deposits (average)		0	0
Loans (period-end)		0	0
Assets		0	0
Deposits (period-end)		0	0
Consumer Banking and Lending [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		22,807	23,378		25,786
Noninterest income		12,070	10,638		12,105
Total revenue		34,877	34,016		37,891
Provision for credit losses		(1,178)	5,662		2,184
Noninterest expense		24,648	26,976		26,998
Income before income tax expense (benefit)		11,407	1,378		8,709
Income tax expense (benefit)		2,852	302		2,814
Net income before noncontrolling interests		8,555	1,076		5,895
Less: Net income (loss) from noncontrolling interests		0	0		0
Wells Fargo net income		8,555	1,076		5,895
Loans (average)		333,885	376,463
Assets (average)		388,208	432,042
Deposits (average)		834,739	722,085
Loans (period-end)		326,574	362,796
Assets		378,620	420,995
Deposits (period-end)		883,674	784,565
Consumer Banking and Lending [Member] | Operating Segments [Member] | Maximum [Member] | Customer concentration risk [Member] | Revenue benchmark [Member]
Segment Reporting Information [Line Items]
Revenue		5
Commercial Banking [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		4,960	6,134		7,981
Noninterest income		3,589	3,041		3,721
Total revenue		8,549	9,175		11,702
Provision for credit losses		(1,500)	3,744		190
Noninterest expense		5,862	6,323		6,598
Income before income tax expense (benefit)		4,187	(892)		4,914
Income tax expense (benefit)		1,045	(208)		1,246
Net income before noncontrolling interests		3,142	(684)		3,668
Less: Net income (loss) from noncontrolling interests		8	5		6
Wells Fargo net income		3,134	(689)		3,662
Loans (average)		181,237	211,436
Assets (average)		198,761	226,961
Deposits (average)		197,269	178,946
Loans (period-end)		190,348	188,977
Assets		210,810	206,953
Deposits (period-end)		205,428	188,292
Corporate and Investment Banking [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		7,410	7,509		8,008
Noninterest income		6,429	6,419		6,442
Total revenue		13,839	13,928		14,450
Provision for credit losses		(1,439)	4,946		173
Noninterest expense		7,200	7,703		7,432
Income before income tax expense (benefit)		8,078	1,279		6,845
Income tax expense (benefit)		2,019	330		1,658
Net income before noncontrolling interests		6,059	949		5,187
Less: Net income (loss) from noncontrolling interests		(3)	(1)		(1)
Wells Fargo net income		6,062	950		5,188
Loans (average)		257,036	255,324
Assets (average)		523,344	521,514
Deposits (average)		189,176	234,332
Loans (period-end)		284,374	244,456
Assets		546,549	508,518
Deposits (period-end)		168,609	203,004
Wealth and Investment Management [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income		2,570	2,988		3,906
Noninterest income		11,776	10,225		10,506
Total revenue		14,346	13,213		14,412
Provision for credit losses		(95)	249		2
Noninterest expense		11,734	10,912		12,167
Income before income tax expense (benefit)		2,707	2,052		2,243
Income tax expense (benefit)		680	514		562
Net income before noncontrolling interests		2,027	1,538		1,681
Less: Net income (loss) from noncontrolling interests		0	0		0
Wells Fargo net income		2,027	1,538		$ 1,681
Loans (average)		82,364	78,775
Assets (average)		88,503	85,942
Deposits (average)		176,562	162,476
Loans (period-end)		84,101	80,785
Assets		90,754	87,778
Deposits (period-end)		$ 192,548	$ 175,483
[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 December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 billion and $12.1 billion, respectively.

Parent-Only Financial Stateme_3

Parent-Only Financial Statements, Parent-Only Statement of Income (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Interest and dividend income
Other interest income		$ 334	$ 954		$ 5,128
Noninterest income
Other income		3,734	3,847	[1]	7,457	[1]
Interest expense
Long-term debt		3,173	4,471		7,350
Other		395	438		551
Noninterest expense
Noninterest expense		53,831	57,630		58,178
Income before income tax expense (benefit)		28,816	2,505		25,967
Income tax benefit		5,578	(1,157)	[1]	5,761	[1]
Wells Fargo net income		21,548	3,377	[1]	19,715	[1]
Parent Company [Member]
Interest and dividend income
Other interest income		1	3		43
Noninterest income
Other income		(418)	(231)		(162)
Total income		21,412	43,645		25,167
Interest expense
Long-term debt		2,823	3,591		4,931
Other		0	0		2
Noninterest expense
Noninterest expense		309	794		1,327
Total expense		3,221	4,540		6,924
Income before income tax expense (benefit)		18,191	39,105		18,243
Income tax benefit		(819)	(1,694)		(945)
Equity in undistributed income of subsidiaries (2)		2,538	(37,422)	[2]	527	[2]
Wells Fargo net income		21,548	3,377	[3]	19,715	[2]
Parent Company [Member] | Subsidiary entity [Member]
Interest and dividend income
Dividends from subsidiaries	[4]	17,895	42,578		21,930
Interest income from subsidiaries		3,934	1,295		3,356
Parent Company [Member] | Subsidiary entity, non-bank [Member]
Interest expense
Indebtedness to nonbank subsidiaries		89	155		664
Parent Company [Member] | Subsidiary entity, bank [Member]
Interest and dividend income
Dividends from subsidiaries		$ 15,200	$ 1,800		$ 21,800
[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 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]	Includes dividends paid from indirect bank subsidiaries of $15.2 billion, $1.8 billion and $21.8 billion in 2021, 2020 and 2019, respectively.

Parent-Only Financial Stateme_4

Parent-Only Financial Statements, Parent-Only Statement of Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 21,548	$ 3,377	[1]	$ 19,715	[1]
Other comprehensive income (loss), net of tax:
Debt securities	(2,375)	1,487		4,193
Derivatives and hedging activities	159	149		207
Defined benefit plans adjustments	349	(181)		73
Other comprehensive income (loss), net of tax	(1,897)	1,505		4,544
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	21,548	3,377	[2]	19,715	[3]
Other comprehensive income (loss), net of tax:
Debt securities	5	(10)		(45)
Derivatives and hedging activities	49	(2)		(12)
Defined benefit plans adjustments	347	(178)		75
Equity in other comprehensive income (loss) of subsidiaries	(2,297)	1,695		4,526
Other comprehensive income (loss), net of tax	(1,896)	1,505		4,544
Wells Fargo comprehensive income	$ 19,652	$ 4,882	[2]	$ 24,259	[2]
[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 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).

Parent-Only Financial Stateme_5

Parent-Only Financial Statements, Parent-Only Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Assets [Abstract]
Cash, cash equivalents, and restricted cash		$ 234,230	$ 264,612		$ 141,250	$ 173,287
Equity securities		72,886	60,008
Other assets		67,259	87,337
Total assets	[1]	1,948,068	1,952,911
Liabilities and equity
Accrued expenses and other liabilities		70,957	74,360
Total liabilities	[2]	1,757,958	1,767,199
Stockholders' equity		187,606	184,680
Total liabilities and equity		1,948,068	1,952,911
Parent Company [Member]
Assets [Abstract]
Cash, cash equivalents, and restricted cash		15,134	14,817		$ 14,949	$ 16,301
Equity securities		140	144
Other assets		7,341	5,857
Total assets		380,591	378,501
Liabilities and equity
Accrued expenses and other liabilities		7,333	8,249
Long-term debt		146,082	181,956
Total liabilities		192,985	193,821
Stockholders' equity		187,606	184,680	[3]
Total liabilities and equity		380,591	378,501
Parent Company [Member] | Subsidiaries [Member]
Assets [Abstract]
Investments in subsidiaries	[4]	172,926	172,637	[3]
Parent Company [Member] | Subsidiary entity, non-bank [Member]
Assets [Abstract]
Loans to nonbank subsidiaries		185,050	185,046
Liabilities and equity
Indebtedness to nonbank subsidiaries		39,570	3,616
Parent Company [Member] | Subsidiary entity, bank [Member]
Assets [Abstract]
Cash, cash equivalents, and restricted cash		15,134	14,817
Investments in subsidiaries		$ 173,700	$ 173,300
[1]	Our consolidated assets at December 31, 2021 and 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, $71 million and $967 million; Loans, $4.5 billion and $10.9 billion; All other assets, $234 million and $310 million; and Total assets, $4.8 billion and $12.1 billion, respectively.
[2]	Our consolidated liabilities at December 31, 2021 and 2020, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Long-term debt, $149 million and $203 million; All other liabilities, $259 million and $900 million; and Total liabilities, $408 million and $1.1 billion, respectively.
[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]	The years ended December 31, 2021 and 2020, include indirect ownership of bank subsidiaries with equity of $173.7 billion and $173.3 billion, respectively.

Parent-Only Financial Stateme_6

Parent-Only Financial Statements, Parent-Only Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Cash flows from operating activities:
Net cash provided by operating activities	$ (11,525)	$ 2,051		$ 6,730
Equity securities, not held for trading:
Proceeds from sales and capital returns	4,933	12,187		6,143
Purchases	(7,680)	(8,677)		(6,865)
Loans:
Other, net	3,782	784	[1]	4,131	[1]
Net cash provided (used) by investing activities	(7,619)	122,554		(29,631)
Cash flows from financing activities:
Net increase (decrease) in short-term borrowings and indebtedness to subsidiaries	(24,590)	(45,513)		(1,275)
Long-term debt:
Proceeds from issuance	1,275	38,136		53,381
Repayment	(47,134)	(65,347)		(60,996)
Preferred stock:
Proceeds from issuance	5,756	3,116		0
Redeemed	(6,675)	(3,602)		(1,550)
Cash dividends paid	(1,205)	(1,290)		(1,391)
Common stock:
Repurchased	(14,464)	(3,415)		(24,533)
Cash dividends paid	(2,422)	(4,852)		(8,198)
Other, net	(361)	(231)	[1]	(711)	[1]
Net cash used by financing activities	(11,238)	(1,243)		(9,136)
Net change in cash, cash equivalents, and restricted cash	(30,382)	123,362		(32,037)
Cash, cash equivalents, and restricted cash at beginning of period	264,612	141,250		173,287
Cash, cash equivalents, and restricted cash at end of period	234,230	264,612		141,250
Parent Company [Member]
Cash flows from operating activities:
Net cash provided by operating activities	11,938	50,193		27,601
Equity securities, not held for trading:
Proceeds from sales and capital returns	11	2,333		326
Purchases	(18)	(1,479)		(1,052)
Loans:
Net repayments from (advances to) subsidiaries	0	10		(3)
Capital notes and term loans made to subsidiaries	(3,500)	(38,547)		(5,286)
Principal collected on notes/loans made to subsidiaries	2,618	558		1,703
Net decrease (increase) in investment in subsidiaries	0	425		(384)
Other, net	14	16		22
Net cash provided (used) by investing activities	(875)	(36,684)		(4,674)
Cash flows from financing activities:
Net increase (decrease) in short-term borrowings and indebtedness to subsidiaries	35,958	(22,613)		(636)
Long-term debt:
Proceeds from issuance	1,001	34,918		20,369
Repayment	(28,331)	(15,803)		(8,143)
Preferred stock:
Proceeds from issuance	5,756	3,116		0
Redeemed	(6,675)	(3,602)		(1,550)
Cash dividends paid	(1,205)	(1,290)		(1,391)
Common stock:
Repurchased	(14,464)	(3,415)		(24,533)
Cash dividends paid	(2,422)	(4,852)		(8,198)
Other, net	(364)	(100)	[2]	(197)	[2]
Net cash used by financing activities	(10,746)	(13,641)		(24,279)
Net change in cash, cash equivalents, and restricted cash	317	(132)		(1,352)
Cash, cash equivalents, and restricted cash at beginning of period	14,817	14,949		16,301
Cash, cash equivalents, and restricted cash at end of period	$ 15,134	$ 14,817		$ 14,949
[1]	Prior period balances have been revised to conform with the current period presentation.
[2]	Prior period balances have been revised to conform with the current period presentation.

Regulatory and Agency Capital R

Regulatory and Agency Capital Requirements (Details) $ in Millions	12 Months Ended		24 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2021USD ($)
Wells Fargo & Company [Member]
Regulatory leverage:
Total leverage exposure	$ 2,316,079	$ 1,963,971	$ 2,316,079
Supplementary leverage ratio (SLR)	0.0689	0.0805	0.0689
Tier 1 leverage ratio	0.0834	0.0832	0.0834
Required minimum leverage
Supplementary leverage ratio	0.0500	0.0500	0.0500
Tier 1 leverage ratio	0.0400	0.0400	0.0400
Increase in capital due to the impact of the CECL transition provision			$ 241
Post-tax increase in capital recognized under initial adoption of CECL	$ 991		991
Increase in ACL under CECL			4,900
Wells Fargo & Company [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	140,643	$ 138,297	140,643
Tier 1	159,671	158,196	159,671
Total	196,308	196,660	196,308
Assets:
Risk-weighted assets	1,239,026	1,193,744	$ 1,239,026
Adjusted average assets	$ 1,915,585	$ 1,900,258
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1135	0.1159	0.1135
Tier 1 capital	0.1289	0.1325	0.1289
Total capital	0.1584	0.1647	0.1584
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0960	0.0900	0.0960
Tier 1 capital	0.1110	0.1050	0.1110
Total capital	0.1310	0.1250	0.1310
Wells Fargo & Company [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 140,643	$ 138,297	$ 140,643
Tier 1	159,671	158,196	159,671
Total	186,580	186,934	186,580
Assets:
Risk-weighted assets	1,116,068	1,158,355	$ 1,116,068
Adjusted average assets	$ 1,915,585	$ 1,900,258
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1260	0.1194	0.1260
Tier 1 capital	0.1431	0.1366	0.1431
Total capital	0.1672	0.1614	0.1672
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0900	0.0900	0.0900
Tier 1 capital	0.1050	0.1050	0.1050
Total capital	0.1250	0.1250	0.1250
Wells Fargo Bank, NA [Member]
Regulatory leverage:
Total leverage exposure	$ 2,133,798	$ 2,041,952	$ 2,133,798
Supplementary leverage ratio (SLR)	0.0700	0.0735	0.0700
Tier 1 leverage ratio	0.0849	0.0865	0.0849
Required minimum leverage
Supplementary leverage ratio	0.0600	0.0600	0.0600
Tier 1 leverage ratio	0.0400	0.0400	0.0400
Increase in capital due to the impact of the CECL transition provision			$ 463
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 149,318	$ 150,168	149,318
Tier 1	149,318	150,168	149,318
Total	173,044	173,719	173,044
Assets:
Risk-weighted assets	1,137,839	1,085,599	$ 1,137,839
Adjusted average assets	$ 1,758,479	$ 1,735,406
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1312	0.1383	0.1312
Tier 1 capital	0.1312	0.1383	0.1312
Total capital	0.1521	0.1600	0.1521
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0700	0.0700	0.0700
Tier 1 capital	0.0850	0.0850	0.0850
Total capital	0.1050	0.1050	0.1050
Wells Fargo Bank, NA [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 149,318	$ 150,168	$ 149,318
Tier 1	149,318	150,168	149,318
Total	163,213	164,412	163,213
Assets:
Risk-weighted assets	965,511	1,012,751	$ 965,511
Adjusted average assets	$ 1,758,479	$ 1,735,406
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1547	0.1483	0.1547
Tier 1 capital	0.1547	0.1483	0.1547
Total capital	0.1690	0.1623	0.1690
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0700	0.0700	0.0700
Tier 1 capital	0.0850	0.0850	0.0850
Total capital	0.1050	0.1050	0.1050

Regulatory and Agency Capital_2

Regulatory and Agency Capital Requirements Minimum Required Regulatory Capital Ratios – Transition Requirements (Details)	Dec. 31, 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
Supplementary leverage ratio	0.0500	0.0500
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 & Company [Member] | Standardized Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Stress Capital Buffer (SCB)	0.0310
Wells Fargo Bank, NA [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Supplementary leverage ratio	0.0600	0.0600
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
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.0250

Loan and Dividend Restrictions

Loan and Dividend Restrictions (Details) $ in Billions	Dec. 31, 2021USD ($)
Bank [Member]
Loan and Dividend Restrictions [Line Items]
Statutory accounting practices, statutory amount available for dividend payments without regulatory approval	$ 5.1
Nonbank Subsidiaries [Member]
Loan and Dividend Restrictions [Line Items]
Statutory accounting practices, statutory amount available for dividend payments without regulatory approval	$ 28.3

Cash Restrictions (Details)

Cash Restrictions (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Reserve balance for non-U.S. central banks [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash equivalents	$ 382	$ 243
Segregated for benefit brokerage customers under federal and other brokerage regulations [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash equivalents	$ 830	$ 957